mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
8522 lines
282 KiB
JavaScript
8522 lines
282 KiB
JavaScript
"use strict";
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var htmlNamespace = "http://www.w3.org/1999/xhtml";
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var cssStylingFlag = false;
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var defaultSingleLineContainerName = "p";
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// This is bad :(
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var globalRange = null;
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// Commands are stored in a dictionary where we call their actions and such
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var commands = {};
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///////////////////////////////////////////////////////////////////////////////
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////////////////////////////// Utility functions //////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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//@{
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function nextNode(node) {
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if (node.hasChildNodes()) {
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return node.firstChild;
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}
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return nextNodeDescendants(node);
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}
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function previousNode(node) {
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if (node.previousSibling) {
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node = node.previousSibling;
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while (node.hasChildNodes()) {
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node = node.lastChild;
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}
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return node;
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}
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if (node.parentNode
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&& node.parentNode.nodeType == Node.ELEMENT_NODE) {
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return node.parentNode;
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}
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return null;
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}
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function nextNodeDescendants(node) {
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while (node && !node.nextSibling) {
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node = node.parentNode;
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}
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if (!node) {
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return null;
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}
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return node.nextSibling;
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}
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/**
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* Returns true if ancestor is an ancestor of descendant, false otherwise.
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*/
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function isAncestor(ancestor, descendant) {
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return ancestor
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&& descendant
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&& Boolean(ancestor.compareDocumentPosition(descendant) & Node.DOCUMENT_POSITION_CONTAINED_BY);
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}
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/**
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* Returns true if ancestor is an ancestor of or equal to descendant, false
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* otherwise.
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*/
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function isAncestorContainer(ancestor, descendant) {
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return (ancestor || descendant)
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&& (ancestor == descendant || isAncestor(ancestor, descendant));
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}
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/**
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* Returns true if descendant is a descendant of ancestor, false otherwise.
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*/
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function isDescendant(descendant, ancestor) {
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return ancestor
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&& descendant
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&& Boolean(ancestor.compareDocumentPosition(descendant) & Node.DOCUMENT_POSITION_CONTAINED_BY);
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}
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/**
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* Returns true if node1 is before node2 in tree order, false otherwise.
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*/
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function isBefore(node1, node2) {
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return Boolean(node1.compareDocumentPosition(node2) & Node.DOCUMENT_POSITION_FOLLOWING);
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}
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/**
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* Returns true if node1 is after node2 in tree order, false otherwise.
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*/
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function isAfter(node1, node2) {
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return Boolean(node1.compareDocumentPosition(node2) & Node.DOCUMENT_POSITION_PRECEDING);
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}
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function getAncestors(node) {
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var ancestors = [];
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while (node.parentNode) {
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ancestors.unshift(node.parentNode);
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node = node.parentNode;
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}
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return ancestors;
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}
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function getInclusiveAncestors(node) {
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return getAncestors(node).concat(node);
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}
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function getDescendants(node) {
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var descendants = [];
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var stop = nextNodeDescendants(node);
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while ((node = nextNode(node))
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&& node != stop) {
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descendants.push(node);
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}
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return descendants;
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}
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function getInclusiveDescendants(node) {
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return [node].concat(getDescendants(node));
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}
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function convertProperty(property) {
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// Special-case for now
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var map = {
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"fontFamily": "font-family",
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"fontSize": "font-size",
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"fontStyle": "font-style",
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"fontWeight": "font-weight",
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"textDecoration": "text-decoration",
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};
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if (typeof map[property] != "undefined") {
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return map[property];
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}
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return property;
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}
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// Return the <font size=X> value for the given CSS size, or undefined if there
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// is none.
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function cssSizeToLegacy(cssVal) {
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return {
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"x-small": 1,
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"small": 2,
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"medium": 3,
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"large": 4,
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"x-large": 5,
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"xx-large": 6,
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"xxx-large": 7
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}[cssVal];
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}
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// Return the CSS size given a legacy size.
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function legacySizeToCss(legacyVal) {
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return {
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1: "x-small",
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2: "small",
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3: "medium",
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4: "large",
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5: "x-large",
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6: "xx-large",
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7: "xxx-large",
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}[legacyVal];
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}
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// Opera 11 puts HTML elements in the null namespace, it seems.
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function isHtmlNamespace(ns) {
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return ns === null
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|| ns === htmlNamespace;
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}
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// "the directionality" from HTML. I don't bother caring about non-HTML
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// elements.
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//
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// "The directionality of an element is either 'ltr' or 'rtl', and is
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// determined as per the first appropriate set of steps from the following
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// list:"
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function getDirectionality(element) {
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// "If the element's dir attribute is in the ltr state
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// The directionality of the element is 'ltr'."
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if (element.dir == "ltr") {
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return "ltr";
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}
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// "If the element's dir attribute is in the rtl state
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// The directionality of the element is 'rtl'."
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if (element.dir == "rtl") {
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return "rtl";
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}
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// "If the element's dir attribute is in the auto state
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// "If the element is a bdi element and the dir attribute is not in a
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// defined state (i.e. it is not present or has an invalid value)
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// [lots of complicated stuff]
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//
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// Skip this, since no browser implements it anyway.
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// "If the element is a root element and the dir attribute is not in a
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// defined state (i.e. it is not present or has an invalid value)
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// The directionality of the element is 'ltr'."
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if (!isHtmlElement(element.parentNode)) {
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return "ltr";
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}
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// "If the element has a parent element and the dir attribute is not in a
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// defined state (i.e. it is not present or has an invalid value)
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// The directionality of the element is the same as the element's
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// parent element's directionality."
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return getDirectionality(element.parentNode);
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}
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//@}
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///////////////////////////////////////////////////////////////////////////////
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///////////////////////////// DOM Range functions /////////////////////////////
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///////////////////////////////////////////////////////////////////////////////
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//@{
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function getNodeIndex(node) {
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var ret = 0;
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while (node.previousSibling) {
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ret++;
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node = node.previousSibling;
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}
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return ret;
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}
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// "The length of a Node node is the following, depending on node:
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//
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// ProcessingInstruction
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// DocumentType
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// Always 0.
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// Text
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// Comment
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// node's length.
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// Any other node
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// node's childNodes's length."
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function getNodeLength(node) {
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switch (node.nodeType) {
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case Node.PROCESSING_INSTRUCTION_NODE:
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case Node.DOCUMENT_TYPE_NODE:
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return 0;
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case Node.TEXT_NODE:
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case Node.COMMENT_NODE:
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return node.length;
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default:
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return node.childNodes.length;
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}
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}
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/**
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* The position of two boundary points relative to one another, as defined by
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* DOM Range.
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*/
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function getPosition(nodeA, offsetA, nodeB, offsetB) {
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// "If node A is the same as node B, return equal if offset A equals offset
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// B, before if offset A is less than offset B, and after if offset A is
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// greater than offset B."
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if (nodeA == nodeB) {
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if (offsetA == offsetB) {
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return "equal";
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}
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if (offsetA < offsetB) {
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return "before";
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}
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if (offsetA > offsetB) {
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return "after";
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}
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}
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// "If node A is after node B in tree order, compute the position of (node
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// B, offset B) relative to (node A, offset A). If it is before, return
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// after. If it is after, return before."
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if (nodeB.compareDocumentPosition(nodeA) & Node.DOCUMENT_POSITION_FOLLOWING) {
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var pos = getPosition(nodeB, offsetB, nodeA, offsetA);
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if (pos == "before") {
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return "after";
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}
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if (pos == "after") {
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return "before";
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}
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}
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// "If node A is an ancestor of node B:"
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if (nodeB.compareDocumentPosition(nodeA) & Node.DOCUMENT_POSITION_CONTAINS) {
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// "Let child equal node B."
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var child = nodeB;
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// "While child is not a child of node A, set child to its parent."
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while (child.parentNode != nodeA) {
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child = child.parentNode;
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}
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// "If the index of child is less than offset A, return after."
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if (getNodeIndex(child) < offsetA) {
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return "after";
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}
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}
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// "Return before."
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return "before";
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}
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/**
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* Returns the furthest ancestor of a Node as defined by DOM Range.
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*/
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function getFurthestAncestor(node) {
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var root = node;
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while (root.parentNode != null) {
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root = root.parentNode;
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}
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return root;
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}
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/**
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* "contained" as defined by DOM Range: "A Node node is contained in a range
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* range if node's furthest ancestor is the same as range's root, and (node, 0)
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* is after range's start, and (node, length of node) is before range's end."
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*/
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function isContained(node, range) {
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var pos1 = getPosition(node, 0, range.startContainer, range.startOffset);
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var pos2 = getPosition(node, getNodeLength(node), range.endContainer, range.endOffset);
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return getFurthestAncestor(node) == getFurthestAncestor(range.startContainer)
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&& pos1 == "after"
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&& pos2 == "before";
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}
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/**
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* Return all nodes contained in range that the provided function returns true
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* for, omitting any with an ancestor already being returned.
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*/
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function getContainedNodes(range, condition) {
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if (typeof condition == "undefined") {
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condition = function() { return true };
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}
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var node = range.startContainer;
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if (node.hasChildNodes()
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&& range.startOffset < node.childNodes.length) {
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// A child is contained
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node = node.childNodes[range.startOffset];
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} else if (range.startOffset == getNodeLength(node)) {
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// No descendant can be contained
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node = nextNodeDescendants(node);
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} else {
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// No children; this node at least can't be contained
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node = nextNode(node);
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}
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var stop = range.endContainer;
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if (stop.hasChildNodes()
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&& range.endOffset < stop.childNodes.length) {
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// The node after the last contained node is a child
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stop = stop.childNodes[range.endOffset];
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} else {
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// This node and/or some of its children might be contained
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stop = nextNodeDescendants(stop);
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}
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var nodeList = [];
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while (isBefore(node, stop)) {
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if (isContained(node, range)
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&& condition(node)) {
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nodeList.push(node);
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node = nextNodeDescendants(node);
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continue;
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}
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node = nextNode(node);
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}
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return nodeList;
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}
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/**
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* As above, but includes nodes with an ancestor that's already been returned.
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*/
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function getAllContainedNodes(range, condition) {
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if (typeof condition == "undefined") {
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condition = function() { return true };
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}
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var node = range.startContainer;
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if (node.hasChildNodes()
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&& range.startOffset < node.childNodes.length) {
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// A child is contained
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node = node.childNodes[range.startOffset];
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} else if (range.startOffset == getNodeLength(node)) {
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// No descendant can be contained
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node = nextNodeDescendants(node);
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} else {
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// No children; this node at least can't be contained
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node = nextNode(node);
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}
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var stop = range.endContainer;
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if (stop.hasChildNodes()
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&& range.endOffset < stop.childNodes.length) {
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// The node after the last contained node is a child
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stop = stop.childNodes[range.endOffset];
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} else {
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// This node and/or some of its children might be contained
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stop = nextNodeDescendants(stop);
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}
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var nodeList = [];
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while (isBefore(node, stop)) {
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if (isContained(node, range)
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&& condition(node)) {
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nodeList.push(node);
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}
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node = nextNode(node);
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}
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return nodeList;
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}
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// Returns either null, or something of the form rgb(x, y, z), or something of
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// the form rgb(x, y, z, w) with w != 0.
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function normalizeColor(color) {
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if (color.toLowerCase() == "currentcolor") {
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return null;
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}
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if (normalizeColor.resultCache === undefined) {
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normalizeColor.resultCache = {};
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}
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if (normalizeColor.resultCache[color] !== undefined) {
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return normalizeColor.resultCache[color];
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}
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var originalColor = color;
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var outerSpan = document.createElement("span");
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document.body.appendChild(outerSpan);
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outerSpan.style.color = "black";
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var innerSpan = document.createElement("span");
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outerSpan.appendChild(innerSpan);
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innerSpan.style.color = color;
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color = getComputedStyle(innerSpan).color;
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if (color == "rgb(0, 0, 0)") {
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// Maybe it's really black, maybe it's invalid.
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outerSpan.color = "white";
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color = getComputedStyle(innerSpan).color;
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if (color != "rgb(0, 0, 0)") {
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return normalizeColor.resultCache[originalColor] = null;
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}
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}
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document.body.removeChild(outerSpan);
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|
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// I rely on the fact that browsers generally provide consistent syntax for
|
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// getComputedStyle(), although it's not standardized. There are only
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// three exceptions I found:
|
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if (/^rgba\([0-9]+, [0-9]+, [0-9]+, 1\)$/.test(color)) {
|
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// IE10PP2 seems to do this sometimes.
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return normalizeColor.resultCache[originalColor] =
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color.replace("rgba", "rgb").replace(", 1)", ")");
|
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}
|
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if (color == "transparent") {
|
||
// IE10PP2, Firefox 7.0a2, and Opera 11.50 all return "transparent" if
|
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// the specified value is "transparent".
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||
return normalizeColor.resultCache[originalColor] =
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"rgba(0, 0, 0, 0)";
|
||
}
|
||
// Chrome 15 dev adds way too many significant figures. This isn't a full
|
||
// fix, it just fixes one case that comes up in tests.
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||
color = color.replace(/, 0.496094\)$/, ", 0.5)");
|
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return normalizeColor.resultCache[originalColor] = color;
|
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}
|
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|
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// Returns either null, or something of the form #xxxxxx.
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function parseSimpleColor(color) {
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color = normalizeColor(color);
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||
var matches = /^rgb\(([0-9]+), ([0-9]+), ([0-9]+)\)$/.exec(color);
|
||
if (matches) {
|
||
return "#"
|
||
+ parseInt(matches[1]).toString(16).replace(/^.$/, "0$&")
|
||
+ parseInt(matches[2]).toString(16).replace(/^.$/, "0$&")
|
||
+ parseInt(matches[3]).toString(16).replace(/^.$/, "0$&");
|
||
}
|
||
return null;
|
||
}
|
||
|
||
//@}
|
||
|
||
//////////////////////////////////////////////////////////////////////////////
|
||
/////////////////////////// Edit command functions ///////////////////////////
|
||
//////////////////////////////////////////////////////////////////////////////
|
||
|
||
/////////////////////////////////////////////////
|
||
///// Methods of the HTMLDocument interface /////
|
||
/////////////////////////////////////////////////
|
||
//@{
|
||
|
||
var executionStackDepth = 0;
|
||
|
||
// Helper function for common behavior.
|
||
function editCommandMethod(command, range, callback) {
|
||
// Set up our global range magic, but only if we're the outermost function
|
||
if (executionStackDepth == 0 && typeof range != "undefined") {
|
||
globalRange = range;
|
||
} else if (executionStackDepth == 0) {
|
||
globalRange = null;
|
||
globalRange = getActiveRange();
|
||
}
|
||
|
||
executionStackDepth++;
|
||
try {
|
||
var ret = callback();
|
||
} catch(e) {
|
||
executionStackDepth--;
|
||
throw e;
|
||
}
|
||
executionStackDepth--;
|
||
return ret;
|
||
}
|
||
|
||
function myExecCommand(command, showUi, value, range) {
|
||
// "All of these methods must treat their command argument ASCII
|
||
// case-insensitively."
|
||
command = command.toLowerCase();
|
||
|
||
// "If only one argument was provided, let show UI be false."
|
||
//
|
||
// If range was passed, I can't actually detect how many args were passed
|
||
// . . .
|
||
if (arguments.length == 1
|
||
|| (arguments.length >=4 && typeof showUi == "undefined")) {
|
||
showUi = false;
|
||
}
|
||
|
||
// "If only one or two arguments were provided, let value be the empty
|
||
// string."
|
||
if (arguments.length <= 2
|
||
|| (arguments.length >=4 && typeof value == "undefined")) {
|
||
value = "";
|
||
}
|
||
|
||
return editCommandMethod(command, range, (function(command, showUi, value) { return function() {
|
||
// "If command is not supported or not enabled, return false."
|
||
if (!(command in commands) || !myQueryCommandEnabled(command)) {
|
||
return false;
|
||
}
|
||
|
||
// "Take the action for command, passing value to the instructions as an
|
||
// argument."
|
||
var ret = commands[command].action(value);
|
||
|
||
// Check for bugs
|
||
if (ret !== true && ret !== false) {
|
||
throw "execCommand() didn't return true or false: " + ret;
|
||
}
|
||
|
||
// "If the previous step returned false, return false."
|
||
if (ret === false) {
|
||
return false;
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}})(command, showUi, value));
|
||
}
|
||
|
||
function myQueryCommandEnabled(command, range) {
|
||
// "All of these methods must treat their command argument ASCII
|
||
// case-insensitively."
|
||
command = command.toLowerCase();
|
||
|
||
return editCommandMethod(command, range, (function(command) { return function() {
|
||
// "Return true if command is both supported and enabled, false
|
||
// otherwise."
|
||
if (!(command in commands)) {
|
||
return false;
|
||
}
|
||
|
||
// "Among commands defined in this specification, those listed in
|
||
// Miscellaneous commands are always enabled, except for the cut
|
||
// command and the paste command. The other commands defined here are
|
||
// enabled if the active range is not null, its start node is either
|
||
// editable or an editing host, its end node is either editable or an
|
||
// editing host, and there is some editing host that is an inclusive
|
||
// ancestor of both its start node and its end node."
|
||
return ["copy", "defaultparagraphseparator", "selectall", "stylewithcss",
|
||
"usecss"].indexOf(command) != -1
|
||
|| (
|
||
getActiveRange() !== null
|
||
&& (isEditable(getActiveRange().startContainer) || isEditingHost(getActiveRange().startContainer))
|
||
&& (isEditable(getActiveRange().endContainer) || isEditingHost(getActiveRange().endContainer))
|
||
&& (getInclusiveAncestors(getActiveRange().commonAncestorContainer).some(isEditingHost))
|
||
);
|
||
}})(command));
|
||
}
|
||
|
||
function myQueryCommandIndeterm(command, range) {
|
||
// "All of these methods must treat their command argument ASCII
|
||
// case-insensitively."
|
||
command = command.toLowerCase();
|
||
|
||
return editCommandMethod(command, range, (function(command) { return function() {
|
||
// "If command is not supported or has no indeterminacy, return false."
|
||
if (!(command in commands) || !("indeterm" in commands[command])) {
|
||
return false;
|
||
}
|
||
|
||
// "Return true if command is indeterminate, otherwise false."
|
||
return commands[command].indeterm();
|
||
}})(command));
|
||
}
|
||
|
||
function myQueryCommandState(command, range) {
|
||
// "All of these methods must treat their command argument ASCII
|
||
// case-insensitively."
|
||
command = command.toLowerCase();
|
||
|
||
return editCommandMethod(command, range, (function(command) { return function() {
|
||
// "If command is not supported or has no state, return false."
|
||
if (!(command in commands) || !("state" in commands[command])) {
|
||
return false;
|
||
}
|
||
|
||
// "If the state override for command is set, return it."
|
||
if (typeof getStateOverride(command) != "undefined") {
|
||
return getStateOverride(command);
|
||
}
|
||
|
||
// "Return true if command's state is true, otherwise false."
|
||
return commands[command].state();
|
||
}})(command));
|
||
}
|
||
|
||
// "When the queryCommandSupported(command) method on the HTMLDocument
|
||
// interface is invoked, the user agent must return true if command is
|
||
// supported, and false otherwise."
|
||
function myQueryCommandSupported(command) {
|
||
// "All of these methods must treat their command argument ASCII
|
||
// case-insensitively."
|
||
command = command.toLowerCase();
|
||
|
||
return command in commands;
|
||
}
|
||
|
||
function myQueryCommandValue(command, range) {
|
||
// "All of these methods must treat their command argument ASCII
|
||
// case-insensitively."
|
||
command = command.toLowerCase();
|
||
|
||
return editCommandMethod(command, range, function() {
|
||
// "If command is not supported or has no value, return the empty string."
|
||
if (!(command in commands) || !("value" in commands[command])) {
|
||
return "";
|
||
}
|
||
|
||
// "If command is "fontSize" and its value override is set, convert the
|
||
// value override to an integer number of pixels and return the legacy
|
||
// font size for the result."
|
||
if (command == "fontsize"
|
||
&& getValueOverride("fontsize") !== undefined) {
|
||
return getLegacyFontSize(getValueOverride("fontsize"));
|
||
}
|
||
|
||
// "If the value override for command is set, return it."
|
||
if (typeof getValueOverride(command) != "undefined") {
|
||
return getValueOverride(command);
|
||
}
|
||
|
||
// "Return command's value."
|
||
return commands[command].value();
|
||
});
|
||
}
|
||
//@}
|
||
|
||
//////////////////////////////
|
||
///// Common definitions /////
|
||
//////////////////////////////
|
||
//@{
|
||
|
||
// "An HTML element is an Element whose namespace is the HTML namespace."
|
||
//
|
||
// I allow an extra argument to more easily check whether something is a
|
||
// particular HTML element, like isHtmlElement(node, "OL"). It accepts arrays
|
||
// too, like isHtmlElement(node, ["OL", "UL"]) to check if it's an ol or ul.
|
||
function isHtmlElement(node, tags) {
|
||
if (typeof tags == "string") {
|
||
tags = [tags];
|
||
}
|
||
if (typeof tags == "object") {
|
||
tags = tags.map(function(tag) { return tag.toUpperCase() });
|
||
}
|
||
return node
|
||
&& node.nodeType == Node.ELEMENT_NODE
|
||
&& isHtmlNamespace(node.namespaceURI)
|
||
&& (typeof tags == "undefined" || tags.indexOf(node.tagName) != -1);
|
||
}
|
||
|
||
// "A prohibited paragraph child name is "address", "article", "aside",
|
||
// "blockquote", "caption", "center", "col", "colgroup", "dd", "details",
|
||
// "dir", "div", "dl", "dt", "fieldset", "figcaption", "figure", "footer",
|
||
// "form", "h1", "h2", "h3", "h4", "h5", "h6", "header", "hgroup", "hr", "li",
|
||
// "listing", "menu", "nav", "ol", "p", "plaintext", "pre", "section",
|
||
// "summary", "table", "tbody", "td", "tfoot", "th", "thead", "tr", "ul", or
|
||
// "xmp"."
|
||
var prohibitedParagraphChildNames = ["address", "article", "aside",
|
||
"blockquote", "caption", "center", "col", "colgroup", "dd", "details",
|
||
"dir", "div", "dl", "dt", "fieldset", "figcaption", "figure", "footer",
|
||
"form", "h1", "h2", "h3", "h4", "h5", "h6", "header", "hgroup", "hr", "li",
|
||
"listing", "menu", "nav", "ol", "p", "plaintext", "pre", "section",
|
||
"summary", "table", "tbody", "td", "tfoot", "th", "thead", "tr", "ul",
|
||
"xmp"];
|
||
|
||
// "A prohibited paragraph child is an HTML element whose local name is a
|
||
// prohibited paragraph child name."
|
||
function isProhibitedParagraphChild(node) {
|
||
return isHtmlElement(node, prohibitedParagraphChildNames);
|
||
}
|
||
|
||
// "A block node is either an Element whose "display" property does not have
|
||
// resolved value "inline" or "inline-block" or "inline-table" or "none", or a
|
||
// Document, or a DocumentFragment."
|
||
function isBlockNode(node) {
|
||
return node
|
||
&& ((node.nodeType == Node.ELEMENT_NODE && ["inline", "inline-block", "inline-table", "none"].indexOf(getComputedStyle(node).display) == -1)
|
||
|| node.nodeType == Node.DOCUMENT_NODE
|
||
|| node.nodeType == Node.DOCUMENT_FRAGMENT_NODE);
|
||
}
|
||
|
||
// "An inline node is a node that is not a block node."
|
||
function isInlineNode(node) {
|
||
return node && !isBlockNode(node);
|
||
}
|
||
|
||
// "An editing host is a node that is either an HTML element with a
|
||
// contenteditable attribute set to the true state, or the HTML element child
|
||
// of a Document whose designMode is enabled."
|
||
function isEditingHost(node) {
|
||
return node
|
||
&& isHtmlElement(node)
|
||
&& (node.contentEditable == "true"
|
||
|| (node.parentNode
|
||
&& node.parentNode.nodeType == Node.DOCUMENT_NODE
|
||
&& node.parentNode.designMode == "on"));
|
||
}
|
||
|
||
// "Something is editable if it is a node; it is not an editing host; it does
|
||
// not have a contenteditable attribute set to the false state; its parent is
|
||
// an editing host or editable; and either it is an HTML element, or it is an
|
||
// svg or math element, or it is not an Element and its parent is an HTML
|
||
// element."
|
||
function isEditable(node) {
|
||
return node
|
||
&& !isEditingHost(node)
|
||
&& (node.nodeType != Node.ELEMENT_NODE || node.contentEditable != "false")
|
||
&& (isEditingHost(node.parentNode) || isEditable(node.parentNode))
|
||
&& (isHtmlElement(node)
|
||
|| (node.nodeType == Node.ELEMENT_NODE && node.namespaceURI == "http://www.w3.org/2000/svg" && node.localName == "svg")
|
||
|| (node.nodeType == Node.ELEMENT_NODE && node.namespaceURI == "http://www.w3.org/1998/Math/MathML" && node.localName == "math")
|
||
|| (node.nodeType != Node.ELEMENT_NODE && isHtmlElement(node.parentNode)));
|
||
}
|
||
|
||
// Helper function, not defined in the spec
|
||
function hasEditableDescendants(node) {
|
||
for (var i = 0; i < node.childNodes.length; i++) {
|
||
if (isEditable(node.childNodes[i])
|
||
|| hasEditableDescendants(node.childNodes[i])) {
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
// "The editing host of node is null if node is neither editable nor an editing
|
||
// host; node itself, if node is an editing host; or the nearest ancestor of
|
||
// node that is an editing host, if node is editable."
|
||
function getEditingHostOf(node) {
|
||
if (isEditingHost(node)) {
|
||
return node;
|
||
} else if (isEditable(node)) {
|
||
var ancestor = node.parentNode;
|
||
while (!isEditingHost(ancestor)) {
|
||
ancestor = ancestor.parentNode;
|
||
}
|
||
return ancestor;
|
||
} else {
|
||
return null;
|
||
}
|
||
}
|
||
|
||
// "Two nodes are in the same editing host if the editing host of the first is
|
||
// non-null and the same as the editing host of the second."
|
||
function inSameEditingHost(node1, node2) {
|
||
return getEditingHostOf(node1)
|
||
&& getEditingHostOf(node1) == getEditingHostOf(node2);
|
||
}
|
||
|
||
// "A collapsed line break is a br that begins a line box which has nothing
|
||
// else in it, and therefore has zero height."
|
||
function isCollapsedLineBreak(br) {
|
||
if (!isHtmlElement(br, "br")) {
|
||
return false;
|
||
}
|
||
|
||
// Add a zwsp after it and see if that changes the height of the nearest
|
||
// non-inline parent. Note: this is not actually reliable, because the
|
||
// parent might have a fixed height or something.
|
||
var ref = br.parentNode;
|
||
while (getComputedStyle(ref).display == "inline") {
|
||
ref = ref.parentNode;
|
||
}
|
||
var refStyle = ref.hasAttribute("style") ? ref.getAttribute("style") : null;
|
||
ref.style.height = "auto";
|
||
ref.style.maxHeight = "none";
|
||
ref.style.minHeight = "0";
|
||
var space = document.createTextNode("\u200b");
|
||
var origHeight = ref.offsetHeight;
|
||
if (origHeight == 0) {
|
||
throw "isCollapsedLineBreak: original height is zero, bug?";
|
||
}
|
||
br.parentNode.insertBefore(space, br.nextSibling);
|
||
var finalHeight = ref.offsetHeight;
|
||
space.parentNode.removeChild(space);
|
||
if (refStyle === null) {
|
||
// Without the setAttribute() line, removeAttribute() doesn't work in
|
||
// Chrome 14 dev. I have no idea why.
|
||
ref.setAttribute("style", "");
|
||
ref.removeAttribute("style");
|
||
} else {
|
||
ref.setAttribute("style", refStyle);
|
||
}
|
||
|
||
// Allow some leeway in case the zwsp didn't create a whole new line, but
|
||
// only made an existing line slightly higher. Firefox 6.0a2 shows this
|
||
// behavior when the first line is bold.
|
||
return origHeight < finalHeight - 5;
|
||
}
|
||
|
||
// "An extraneous line break is a br that has no visual effect, in that
|
||
// removing it from the DOM would not change layout, except that a br that is
|
||
// the sole child of an li is not extraneous."
|
||
//
|
||
// FIXME: This doesn't work in IE, since IE ignores display: none in
|
||
// contenteditable.
|
||
function isExtraneousLineBreak(br) {
|
||
if (!isHtmlElement(br, "br")) {
|
||
return false;
|
||
}
|
||
|
||
if (isHtmlElement(br.parentNode, "li")
|
||
&& br.parentNode.childNodes.length == 1) {
|
||
return false;
|
||
}
|
||
|
||
// Make the line break disappear and see if that changes the block's
|
||
// height. Yes, this is an absurd hack. We have to reset height etc. on
|
||
// the reference node because otherwise its height won't change if it's not
|
||
// auto.
|
||
var ref = br.parentNode;
|
||
while (getComputedStyle(ref).display == "inline") {
|
||
ref = ref.parentNode;
|
||
}
|
||
var refStyle = ref.hasAttribute("style") ? ref.getAttribute("style") : null;
|
||
ref.style.height = "auto";
|
||
ref.style.maxHeight = "none";
|
||
ref.style.minHeight = "0";
|
||
var brStyle = br.hasAttribute("style") ? br.getAttribute("style") : null;
|
||
var origHeight = ref.offsetHeight;
|
||
if (origHeight == 0) {
|
||
throw "isExtraneousLineBreak: original height is zero, bug?";
|
||
}
|
||
br.setAttribute("style", "display:none");
|
||
var finalHeight = ref.offsetHeight;
|
||
if (refStyle === null) {
|
||
// Without the setAttribute() line, removeAttribute() doesn't work in
|
||
// Chrome 14 dev. I have no idea why.
|
||
ref.setAttribute("style", "");
|
||
ref.removeAttribute("style");
|
||
} else {
|
||
ref.setAttribute("style", refStyle);
|
||
}
|
||
if (brStyle === null) {
|
||
br.removeAttribute("style");
|
||
} else {
|
||
br.setAttribute("style", brStyle);
|
||
}
|
||
|
||
return origHeight == finalHeight;
|
||
}
|
||
|
||
// "A whitespace node is either a Text node whose data is the empty string; or
|
||
// a Text node whose data consists only of one or more tabs (0x0009), line
|
||
// feeds (0x000A), carriage returns (0x000D), and/or spaces (0x0020), and whose
|
||
// parent is an Element whose resolved value for "white-space" is "normal" or
|
||
// "nowrap"; or a Text node whose data consists only of one or more tabs
|
||
// (0x0009), carriage returns (0x000D), and/or spaces (0x0020), and whose
|
||
// parent is an Element whose resolved value for "white-space" is "pre-line"."
|
||
function isWhitespaceNode(node) {
|
||
return node
|
||
&& node.nodeType == Node.TEXT_NODE
|
||
&& (node.data == ""
|
||
|| (
|
||
/^[\t\n\r ]+$/.test(node.data)
|
||
&& node.parentNode
|
||
&& node.parentNode.nodeType == Node.ELEMENT_NODE
|
||
&& ["normal", "nowrap"].indexOf(getComputedStyle(node.parentNode).whiteSpace) != -1
|
||
) || (
|
||
/^[\t\r ]+$/.test(node.data)
|
||
&& node.parentNode
|
||
&& node.parentNode.nodeType == Node.ELEMENT_NODE
|
||
&& getComputedStyle(node.parentNode).whiteSpace == "pre-line"
|
||
));
|
||
}
|
||
|
||
// "node is a collapsed whitespace node if the following algorithm returns
|
||
// true:"
|
||
function isCollapsedWhitespaceNode(node) {
|
||
// "If node is not a whitespace node, return false."
|
||
if (!isWhitespaceNode(node)) {
|
||
return false;
|
||
}
|
||
|
||
// "If node's data is the empty string, return true."
|
||
if (node.data == "") {
|
||
return true;
|
||
}
|
||
|
||
// "Let ancestor be node's parent."
|
||
var ancestor = node.parentNode;
|
||
|
||
// "If ancestor is null, return true."
|
||
if (!ancestor) {
|
||
return true;
|
||
}
|
||
|
||
// "If the "display" property of some ancestor of node has resolved value
|
||
// "none", return true."
|
||
if (getAncestors(node).some(function(ancestor) {
|
||
return ancestor.nodeType == Node.ELEMENT_NODE
|
||
&& getComputedStyle(ancestor).display == "none";
|
||
})) {
|
||
return true;
|
||
}
|
||
|
||
// "While ancestor is not a block node and its parent is not null, set
|
||
// ancestor to its parent."
|
||
while (!isBlockNode(ancestor)
|
||
&& ancestor.parentNode) {
|
||
ancestor = ancestor.parentNode;
|
||
}
|
||
|
||
// "Let reference be node."
|
||
var reference = node;
|
||
|
||
// "While reference is a descendant of ancestor:"
|
||
while (reference != ancestor) {
|
||
// "Let reference be the node before it in tree order."
|
||
reference = previousNode(reference);
|
||
|
||
// "If reference is a block node or a br, return true."
|
||
if (isBlockNode(reference)
|
||
|| isHtmlElement(reference, "br")) {
|
||
return true;
|
||
}
|
||
|
||
// "If reference is a Text node that is not a whitespace node, or is an
|
||
// img, break from this loop."
|
||
if ((reference.nodeType == Node.TEXT_NODE && !isWhitespaceNode(reference))
|
||
|| isHtmlElement(reference, "img")) {
|
||
break;
|
||
}
|
||
}
|
||
|
||
// "Let reference be node."
|
||
reference = node;
|
||
|
||
// "While reference is a descendant of ancestor:"
|
||
var stop = nextNodeDescendants(ancestor);
|
||
while (reference != stop) {
|
||
// "Let reference be the node after it in tree order, or null if there
|
||
// is no such node."
|
||
reference = nextNode(reference);
|
||
|
||
// "If reference is a block node or a br, return true."
|
||
if (isBlockNode(reference)
|
||
|| isHtmlElement(reference, "br")) {
|
||
return true;
|
||
}
|
||
|
||
// "If reference is a Text node that is not a whitespace node, or is an
|
||
// img, break from this loop."
|
||
if ((reference && reference.nodeType == Node.TEXT_NODE && !isWhitespaceNode(reference))
|
||
|| isHtmlElement(reference, "img")) {
|
||
break;
|
||
}
|
||
}
|
||
|
||
// "Return false."
|
||
return false;
|
||
}
|
||
|
||
// "Something is visible if it is a node that either is a block node, or a Text
|
||
// node that is not a collapsed whitespace node, or an img, or a br that is not
|
||
// an extraneous line break, or any node with a visible descendant; excluding
|
||
// any node with an ancestor container Element whose "display" property has
|
||
// resolved value "none"."
|
||
function isVisible(node) {
|
||
if (!node) {
|
||
return false;
|
||
}
|
||
|
||
if (getAncestors(node).concat(node)
|
||
.filter(function(node) { return node.nodeType == Node.ELEMENT_NODE })
|
||
.some(function(node) { return getComputedStyle(node).display == "none" })) {
|
||
return false;
|
||
}
|
||
|
||
if (isBlockNode(node)
|
||
|| (node.nodeType == Node.TEXT_NODE && !isCollapsedWhitespaceNode(node))
|
||
|| isHtmlElement(node, "img")
|
||
|| (isHtmlElement(node, "br") && !isExtraneousLineBreak(node))) {
|
||
return true;
|
||
}
|
||
|
||
for (var i = 0; i < node.childNodes.length; i++) {
|
||
if (isVisible(node.childNodes[i])) {
|
||
return true;
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
// "Something is invisible if it is a node that is not visible."
|
||
function isInvisible(node) {
|
||
return node && !isVisible(node);
|
||
}
|
||
|
||
// "A collapsed block prop is either a collapsed line break that is not an
|
||
// extraneous line break, or an Element that is an inline node and whose
|
||
// children are all either invisible or collapsed block props and that has at
|
||
// least one child that is a collapsed block prop."
|
||
function isCollapsedBlockProp(node) {
|
||
if (isCollapsedLineBreak(node)
|
||
&& !isExtraneousLineBreak(node)) {
|
||
return true;
|
||
}
|
||
|
||
if (!isInlineNode(node)
|
||
|| node.nodeType != Node.ELEMENT_NODE) {
|
||
return false;
|
||
}
|
||
|
||
var hasCollapsedBlockPropChild = false;
|
||
for (var i = 0; i < node.childNodes.length; i++) {
|
||
if (!isInvisible(node.childNodes[i])
|
||
&& !isCollapsedBlockProp(node.childNodes[i])) {
|
||
return false;
|
||
}
|
||
if (isCollapsedBlockProp(node.childNodes[i])) {
|
||
hasCollapsedBlockPropChild = true;
|
||
}
|
||
}
|
||
|
||
return hasCollapsedBlockPropChild;
|
||
}
|
||
|
||
// "The active range is the range of the selection given by calling
|
||
// getSelection() on the context object. (Thus the active range may be null.)"
|
||
//
|
||
// We cheat and return globalRange if that's defined. We also ensure that the
|
||
// active range meets the requirements that selection boundary points are
|
||
// supposed to meet, i.e., that the nodes are both Text or Element nodes that
|
||
// descend from a Document.
|
||
function getActiveRange() {
|
||
var ret;
|
||
if (globalRange) {
|
||
ret = globalRange;
|
||
} else if (getSelection().rangeCount) {
|
||
ret = getSelection().getRangeAt(0);
|
||
} else {
|
||
return null;
|
||
}
|
||
if ([Node.TEXT_NODE, Node.ELEMENT_NODE].indexOf(ret.startContainer.nodeType) == -1
|
||
|| [Node.TEXT_NODE, Node.ELEMENT_NODE].indexOf(ret.endContainer.nodeType) == -1
|
||
|| !ret.startContainer.ownerDocument
|
||
|| !ret.endContainer.ownerDocument
|
||
|| !isDescendant(ret.startContainer, ret.startContainer.ownerDocument)
|
||
|| !isDescendant(ret.endContainer, ret.endContainer.ownerDocument)) {
|
||
throw "Invalid active range; test bug?";
|
||
}
|
||
return ret;
|
||
}
|
||
|
||
// "For some commands, each HTMLDocument must have a boolean state override
|
||
// and/or a string value override. These do not change the command's state or
|
||
// value, but change the way some algorithms behave, as specified in those
|
||
// algorithms' definitions. Initially, both must be unset for every command.
|
||
// Whenever the number of ranges in the Selection changes to something
|
||
// different, and whenever a boundary point of the range at a given index in
|
||
// the Selection changes to something different, the state override and value
|
||
// override must be unset for every command."
|
||
//
|
||
// We implement this crudely by using setters and getters. To verify that the
|
||
// selection hasn't changed, we copy the active range and just check the
|
||
// endpoints match. This isn't really correct, but it's good enough for us.
|
||
// Unset state/value overrides are undefined. We put everything in a function
|
||
// so no one can access anything except via the provided functions, since
|
||
// otherwise callers might mistakenly use outdated overrides (if the selection
|
||
// has changed).
|
||
var getStateOverride, setStateOverride, unsetStateOverride,
|
||
getValueOverride, setValueOverride, unsetValueOverride;
|
||
(function() {
|
||
var stateOverrides = {};
|
||
var valueOverrides = {};
|
||
var storedRange = null;
|
||
|
||
function resetOverrides() {
|
||
if (!storedRange
|
||
|| storedRange.startContainer != getActiveRange().startContainer
|
||
|| storedRange.endContainer != getActiveRange().endContainer
|
||
|| storedRange.startOffset != getActiveRange().startOffset
|
||
|| storedRange.endOffset != getActiveRange().endOffset) {
|
||
stateOverrides = {};
|
||
valueOverrides = {};
|
||
storedRange = getActiveRange().cloneRange();
|
||
}
|
||
}
|
||
|
||
getStateOverride = function(command) {
|
||
resetOverrides();
|
||
return stateOverrides[command];
|
||
};
|
||
|
||
setStateOverride = function(command, newState) {
|
||
resetOverrides();
|
||
stateOverrides[command] = newState;
|
||
};
|
||
|
||
unsetStateOverride = function(command) {
|
||
resetOverrides();
|
||
delete stateOverrides[command];
|
||
}
|
||
|
||
getValueOverride = function(command) {
|
||
resetOverrides();
|
||
return valueOverrides[command];
|
||
}
|
||
|
||
// "The value override for the backColor command must be the same as the
|
||
// value override for the hiliteColor command, such that setting one sets
|
||
// the other to the same thing and unsetting one unsets the other."
|
||
setValueOverride = function(command, newValue) {
|
||
resetOverrides();
|
||
valueOverrides[command] = newValue;
|
||
if (command == "backcolor") {
|
||
valueOverrides.hilitecolor = newValue;
|
||
} else if (command == "hilitecolor") {
|
||
valueOverrides.backcolor = newValue;
|
||
}
|
||
}
|
||
|
||
unsetValueOverride = function(command) {
|
||
resetOverrides();
|
||
delete valueOverrides[command];
|
||
if (command == "backcolor") {
|
||
delete valueOverrides.hilitecolor;
|
||
} else if (command == "hilitecolor") {
|
||
delete valueOverrides.backcolor;
|
||
}
|
||
}
|
||
})();
|
||
|
||
//@}
|
||
|
||
/////////////////////////////
|
||
///// Common algorithms /////
|
||
/////////////////////////////
|
||
|
||
///// Assorted common algorithms /////
|
||
//@{
|
||
|
||
// Magic array of extra ranges whose endpoints we want to preserve.
|
||
var extraRanges = [];
|
||
|
||
function movePreservingRanges(node, newParent, newIndex) {
|
||
// For convenience, I allow newIndex to be -1 to mean "insert at the end".
|
||
if (newIndex == -1) {
|
||
newIndex = newParent.childNodes.length;
|
||
}
|
||
|
||
// "When the user agent is to move a Node to a new location, preserving
|
||
// ranges, it must remove the Node from its original parent (if any), then
|
||
// insert it in the new location. In doing so, however, it must ignore the
|
||
// regular range mutation rules, and instead follow these rules:"
|
||
|
||
// "Let node be the moved Node, old parent and old index be the old parent
|
||
// (which may be null) and index, and new parent and new index be the new
|
||
// parent and index."
|
||
var oldParent = node.parentNode;
|
||
var oldIndex = getNodeIndex(node);
|
||
|
||
// We preserve the global range object, the ranges in the selection, and
|
||
// any range that's in the extraRanges array. Any other ranges won't get
|
||
// updated, because we have no references to them.
|
||
var ranges = [globalRange].concat(extraRanges);
|
||
for (var i = 0; i < getSelection().rangeCount; i++) {
|
||
ranges.push(getSelection().getRangeAt(i));
|
||
}
|
||
var boundaryPoints = [];
|
||
ranges.forEach(function(range) {
|
||
boundaryPoints.push([range.startContainer, range.startOffset]);
|
||
boundaryPoints.push([range.endContainer, range.endOffset]);
|
||
});
|
||
|
||
boundaryPoints.forEach(function(boundaryPoint) {
|
||
// "If a boundary point's node is the same as or a descendant of node,
|
||
// leave it unchanged, so it moves to the new location."
|
||
//
|
||
// No modifications necessary.
|
||
|
||
// "If a boundary point's node is new parent and its offset is greater
|
||
// than new index, add one to its offset."
|
||
if (boundaryPoint[0] == newParent
|
||
&& boundaryPoint[1] > newIndex) {
|
||
boundaryPoint[1]++;
|
||
}
|
||
|
||
// "If a boundary point's node is old parent and its offset is old index or
|
||
// old index + 1, set its node to new parent and add new index − old index
|
||
// to its offset."
|
||
if (boundaryPoint[0] == oldParent
|
||
&& (boundaryPoint[1] == oldIndex
|
||
|| boundaryPoint[1] == oldIndex + 1)) {
|
||
boundaryPoint[0] = newParent;
|
||
boundaryPoint[1] += newIndex - oldIndex;
|
||
}
|
||
|
||
// "If a boundary point's node is old parent and its offset is greater than
|
||
// old index + 1, subtract one from its offset."
|
||
if (boundaryPoint[0] == oldParent
|
||
&& boundaryPoint[1] > oldIndex + 1) {
|
||
boundaryPoint[1]--;
|
||
}
|
||
});
|
||
|
||
// Now actually move it and preserve the ranges.
|
||
if (newParent.childNodes.length == newIndex) {
|
||
newParent.appendChild(node);
|
||
} else {
|
||
newParent.insertBefore(node, newParent.childNodes[newIndex]);
|
||
}
|
||
|
||
globalRange.setStart(boundaryPoints[0][0], boundaryPoints[0][1]);
|
||
globalRange.setEnd(boundaryPoints[1][0], boundaryPoints[1][1]);
|
||
|
||
for (var i = 0; i < extraRanges.length; i++) {
|
||
extraRanges[i].setStart(boundaryPoints[2*i + 2][0], boundaryPoints[2*i + 2][1]);
|
||
extraRanges[i].setEnd(boundaryPoints[2*i + 3][0], boundaryPoints[2*i + 3][1]);
|
||
}
|
||
|
||
getSelection().removeAllRanges();
|
||
for (var i = 1 + extraRanges.length; i < ranges.length; i++) {
|
||
var newRange = document.createRange();
|
||
newRange.setStart(boundaryPoints[2*i][0], boundaryPoints[2*i][1]);
|
||
newRange.setEnd(boundaryPoints[2*i + 1][0], boundaryPoints[2*i + 1][1]);
|
||
getSelection().addRange(newRange);
|
||
}
|
||
}
|
||
|
||
function setTagName(element, newName) {
|
||
// "If element is an HTML element with local name equal to new name, return
|
||
// element."
|
||
if (isHtmlElement(element, newName.toUpperCase())) {
|
||
return element;
|
||
}
|
||
|
||
// "If element's parent is null, return element."
|
||
if (!element.parentNode) {
|
||
return element;
|
||
}
|
||
|
||
// "Let replacement element be the result of calling createElement(new
|
||
// name) on the ownerDocument of element."
|
||
var replacementElement = element.ownerDocument.createElement(newName);
|
||
|
||
// "Insert replacement element into element's parent immediately before
|
||
// element."
|
||
element.parentNode.insertBefore(replacementElement, element);
|
||
|
||
// "Copy all attributes of element to replacement element, in order."
|
||
for (var i = 0; i < element.attributes.length; i++) {
|
||
replacementElement.setAttributeNS(element.attributes[i].namespaceURI, element.attributes[i].name, element.attributes[i].value);
|
||
}
|
||
|
||
// "While element has children, append the first child of element as the
|
||
// last child of replacement element, preserving ranges."
|
||
while (element.childNodes.length) {
|
||
movePreservingRanges(element.firstChild, replacementElement, replacementElement.childNodes.length);
|
||
}
|
||
|
||
// "Remove element from its parent."
|
||
element.parentNode.removeChild(element);
|
||
|
||
// "Return replacement element."
|
||
return replacementElement;
|
||
}
|
||
|
||
function removeExtraneousLineBreaksBefore(node) {
|
||
// "Let ref be the previousSibling of node."
|
||
var ref = node.previousSibling;
|
||
|
||
// "If ref is null, abort these steps."
|
||
if (!ref) {
|
||
return;
|
||
}
|
||
|
||
// "While ref has children, set ref to its lastChild."
|
||
while (ref.hasChildNodes()) {
|
||
ref = ref.lastChild;
|
||
}
|
||
|
||
// "While ref is invisible but not an extraneous line break, and ref does
|
||
// not equal node's parent, set ref to the node before it in tree order."
|
||
while (isInvisible(ref)
|
||
&& !isExtraneousLineBreak(ref)
|
||
&& ref != node.parentNode) {
|
||
ref = previousNode(ref);
|
||
}
|
||
|
||
// "If ref is an editable extraneous line break, remove it from its
|
||
// parent."
|
||
if (isEditable(ref)
|
||
&& isExtraneousLineBreak(ref)) {
|
||
ref.parentNode.removeChild(ref);
|
||
}
|
||
}
|
||
|
||
function removeExtraneousLineBreaksAtTheEndOf(node) {
|
||
// "Let ref be node."
|
||
var ref = node;
|
||
|
||
// "While ref has children, set ref to its lastChild."
|
||
while (ref.hasChildNodes()) {
|
||
ref = ref.lastChild;
|
||
}
|
||
|
||
// "While ref is invisible but not an extraneous line break, and ref does
|
||
// not equal node, set ref to the node before it in tree order."
|
||
while (isInvisible(ref)
|
||
&& !isExtraneousLineBreak(ref)
|
||
&& ref != node) {
|
||
ref = previousNode(ref);
|
||
}
|
||
|
||
// "If ref is an editable extraneous line break:"
|
||
if (isEditable(ref)
|
||
&& isExtraneousLineBreak(ref)) {
|
||
// "While ref's parent is editable and invisible, set ref to its
|
||
// parent."
|
||
while (isEditable(ref.parentNode)
|
||
&& isInvisible(ref.parentNode)) {
|
||
ref = ref.parentNode;
|
||
}
|
||
|
||
// "Remove ref from its parent."
|
||
ref.parentNode.removeChild(ref);
|
||
}
|
||
}
|
||
|
||
// "To remove extraneous line breaks from a node, first remove extraneous line
|
||
// breaks before it, then remove extraneous line breaks at the end of it."
|
||
function removeExtraneousLineBreaksFrom(node) {
|
||
removeExtraneousLineBreaksBefore(node);
|
||
removeExtraneousLineBreaksAtTheEndOf(node);
|
||
}
|
||
|
||
//@}
|
||
///// Wrapping a list of nodes /////
|
||
//@{
|
||
|
||
function wrap(nodeList, siblingCriteria, newParentInstructions) {
|
||
// "If not provided, sibling criteria returns false and new parent
|
||
// instructions returns null."
|
||
if (typeof siblingCriteria == "undefined") {
|
||
siblingCriteria = function() { return false };
|
||
}
|
||
if (typeof newParentInstructions == "undefined") {
|
||
newParentInstructions = function() { return null };
|
||
}
|
||
|
||
// "If every member of node list is invisible, and none is a br, return
|
||
// null and abort these steps."
|
||
if (nodeList.every(isInvisible)
|
||
&& !nodeList.some(function(node) { return isHtmlElement(node, "br") })) {
|
||
return null;
|
||
}
|
||
|
||
// "If node list's first member's parent is null, return null and abort
|
||
// these steps."
|
||
if (!nodeList[0].parentNode) {
|
||
return null;
|
||
}
|
||
|
||
// "If node list's last member is an inline node that's not a br, and node
|
||
// list's last member's nextSibling is a br, append that br to node list."
|
||
if (isInlineNode(nodeList[nodeList.length - 1])
|
||
&& !isHtmlElement(nodeList[nodeList.length - 1], "br")
|
||
&& isHtmlElement(nodeList[nodeList.length - 1].nextSibling, "br")) {
|
||
nodeList.push(nodeList[nodeList.length - 1].nextSibling);
|
||
}
|
||
|
||
// "While node list's first member's previousSibling is invisible, prepend
|
||
// it to node list."
|
||
while (isInvisible(nodeList[0].previousSibling)) {
|
||
nodeList.unshift(nodeList[0].previousSibling);
|
||
}
|
||
|
||
// "While node list's last member's nextSibling is invisible, append it to
|
||
// node list."
|
||
while (isInvisible(nodeList[nodeList.length - 1].nextSibling)) {
|
||
nodeList.push(nodeList[nodeList.length - 1].nextSibling);
|
||
}
|
||
|
||
// "If the previousSibling of the first member of node list is editable and
|
||
// running sibling criteria on it returns true, let new parent be the
|
||
// previousSibling of the first member of node list."
|
||
var newParent;
|
||
if (isEditable(nodeList[0].previousSibling)
|
||
&& siblingCriteria(nodeList[0].previousSibling)) {
|
||
newParent = nodeList[0].previousSibling;
|
||
|
||
// "Otherwise, if the nextSibling of the last member of node list is
|
||
// editable and running sibling criteria on it returns true, let new parent
|
||
// be the nextSibling of the last member of node list."
|
||
} else if (isEditable(nodeList[nodeList.length - 1].nextSibling)
|
||
&& siblingCriteria(nodeList[nodeList.length - 1].nextSibling)) {
|
||
newParent = nodeList[nodeList.length - 1].nextSibling;
|
||
|
||
// "Otherwise, run new parent instructions, and let new parent be the
|
||
// result."
|
||
} else {
|
||
newParent = newParentInstructions();
|
||
}
|
||
|
||
// "If new parent is null, abort these steps and return null."
|
||
if (!newParent) {
|
||
return null;
|
||
}
|
||
|
||
// "If new parent's parent is null:"
|
||
if (!newParent.parentNode) {
|
||
// "Insert new parent into the parent of the first member of node list
|
||
// immediately before the first member of node list."
|
||
nodeList[0].parentNode.insertBefore(newParent, nodeList[0]);
|
||
|
||
// "If any range has a boundary point with node equal to the parent of
|
||
// new parent and offset equal to the index of new parent, add one to
|
||
// that boundary point's offset."
|
||
//
|
||
// Only try to fix the global range.
|
||
if (globalRange.startContainer == newParent.parentNode
|
||
&& globalRange.startOffset == getNodeIndex(newParent)) {
|
||
globalRange.setStart(globalRange.startContainer, globalRange.startOffset + 1);
|
||
}
|
||
if (globalRange.endContainer == newParent.parentNode
|
||
&& globalRange.endOffset == getNodeIndex(newParent)) {
|
||
globalRange.setEnd(globalRange.endContainer, globalRange.endOffset + 1);
|
||
}
|
||
}
|
||
|
||
// "Let original parent be the parent of the first member of node list."
|
||
var originalParent = nodeList[0].parentNode;
|
||
|
||
// "If new parent is before the first member of node list in tree order:"
|
||
if (isBefore(newParent, nodeList[0])) {
|
||
// "If new parent is not an inline node, but the last visible child of
|
||
// new parent and the first visible member of node list are both inline
|
||
// nodes, and the last child of new parent is not a br, call
|
||
// createElement("br") on the ownerDocument of new parent and append
|
||
// the result as the last child of new parent."
|
||
if (!isInlineNode(newParent)
|
||
&& isInlineNode([].filter.call(newParent.childNodes, isVisible).slice(-1)[0])
|
||
&& isInlineNode(nodeList.filter(isVisible)[0])
|
||
&& !isHtmlElement(newParent.lastChild, "BR")) {
|
||
newParent.appendChild(newParent.ownerDocument.createElement("br"));
|
||
}
|
||
|
||
// "For each node in node list, append node as the last child of new
|
||
// parent, preserving ranges."
|
||
for (var i = 0; i < nodeList.length; i++) {
|
||
movePreservingRanges(nodeList[i], newParent, -1);
|
||
}
|
||
|
||
// "Otherwise:"
|
||
} else {
|
||
// "If new parent is not an inline node, but the first visible child of
|
||
// new parent and the last visible member of node list are both inline
|
||
// nodes, and the last member of node list is not a br, call
|
||
// createElement("br") on the ownerDocument of new parent and insert
|
||
// the result as the first child of new parent."
|
||
if (!isInlineNode(newParent)
|
||
&& isInlineNode([].filter.call(newParent.childNodes, isVisible)[0])
|
||
&& isInlineNode(nodeList.filter(isVisible).slice(-1)[0])
|
||
&& !isHtmlElement(nodeList[nodeList.length - 1], "BR")) {
|
||
newParent.insertBefore(newParent.ownerDocument.createElement("br"), newParent.firstChild);
|
||
}
|
||
|
||
// "For each node in node list, in reverse order, insert node as the
|
||
// first child of new parent, preserving ranges."
|
||
for (var i = nodeList.length - 1; i >= 0; i--) {
|
||
movePreservingRanges(nodeList[i], newParent, 0);
|
||
}
|
||
}
|
||
|
||
// "If original parent is editable and has no children, remove it from its
|
||
// parent."
|
||
if (isEditable(originalParent) && !originalParent.hasChildNodes()) {
|
||
originalParent.parentNode.removeChild(originalParent);
|
||
}
|
||
|
||
// "If new parent's nextSibling is editable and running sibling criteria on
|
||
// it returns true:"
|
||
if (isEditable(newParent.nextSibling)
|
||
&& siblingCriteria(newParent.nextSibling)) {
|
||
// "If new parent is not an inline node, but new parent's last child
|
||
// and new parent's nextSibling's first child are both inline nodes,
|
||
// and new parent's last child is not a br, call createElement("br") on
|
||
// the ownerDocument of new parent and append the result as the last
|
||
// child of new parent."
|
||
if (!isInlineNode(newParent)
|
||
&& isInlineNode(newParent.lastChild)
|
||
&& isInlineNode(newParent.nextSibling.firstChild)
|
||
&& !isHtmlElement(newParent.lastChild, "BR")) {
|
||
newParent.appendChild(newParent.ownerDocument.createElement("br"));
|
||
}
|
||
|
||
// "While new parent's nextSibling has children, append its first child
|
||
// as the last child of new parent, preserving ranges."
|
||
while (newParent.nextSibling.hasChildNodes()) {
|
||
movePreservingRanges(newParent.nextSibling.firstChild, newParent, -1);
|
||
}
|
||
|
||
// "Remove new parent's nextSibling from its parent."
|
||
newParent.parentNode.removeChild(newParent.nextSibling);
|
||
}
|
||
|
||
// "Remove extraneous line breaks from new parent."
|
||
removeExtraneousLineBreaksFrom(newParent);
|
||
|
||
// "Return new parent."
|
||
return newParent;
|
||
}
|
||
|
||
|
||
//@}
|
||
///// Allowed children /////
|
||
//@{
|
||
|
||
// "A name of an element with inline contents is "a", "abbr", "b", "bdi",
|
||
// "bdo", "cite", "code", "dfn", "em", "h1", "h2", "h3", "h4", "h5", "h6", "i",
|
||
// "kbd", "mark", "p", "pre", "q", "rp", "rt", "ruby", "s", "samp", "small",
|
||
// "span", "strong", "sub", "sup", "u", "var", "acronym", "listing", "strike",
|
||
// "xmp", "big", "blink", "font", "marquee", "nobr", or "tt"."
|
||
var namesOfElementsWithInlineContents = ["a", "abbr", "b", "bdi", "bdo",
|
||
"cite", "code", "dfn", "em", "h1", "h2", "h3", "h4", "h5", "h6", "i",
|
||
"kbd", "mark", "p", "pre", "q", "rp", "rt", "ruby", "s", "samp", "small",
|
||
"span", "strong", "sub", "sup", "u", "var", "acronym", "listing", "strike",
|
||
"xmp", "big", "blink", "font", "marquee", "nobr", "tt"];
|
||
|
||
// "An element with inline contents is an HTML element whose local name is a
|
||
// name of an element with inline contents."
|
||
function isElementWithInlineContents(node) {
|
||
return isHtmlElement(node, namesOfElementsWithInlineContents);
|
||
}
|
||
|
||
function isAllowedChild(child, parent_) {
|
||
// "If parent is "colgroup", "table", "tbody", "tfoot", "thead", "tr", or
|
||
// an HTML element with local name equal to one of those, and child is a
|
||
// Text node whose data does not consist solely of space characters, return
|
||
// false."
|
||
if ((["colgroup", "table", "tbody", "tfoot", "thead", "tr"].indexOf(parent_) != -1
|
||
|| isHtmlElement(parent_, ["colgroup", "table", "tbody", "tfoot", "thead", "tr"]))
|
||
&& typeof child == "object"
|
||
&& child.nodeType == Node.TEXT_NODE
|
||
&& !/^[ \t\n\f\r]*$/.test(child.data)) {
|
||
return false;
|
||
}
|
||
|
||
// "If parent is "script", "style", "plaintext", or "xmp", or an HTML
|
||
// element with local name equal to one of those, and child is not a Text
|
||
// node, return false."
|
||
if ((["script", "style", "plaintext", "xmp"].indexOf(parent_) != -1
|
||
|| isHtmlElement(parent_, ["script", "style", "plaintext", "xmp"]))
|
||
&& (typeof child != "object" || child.nodeType != Node.TEXT_NODE)) {
|
||
return false;
|
||
}
|
||
|
||
// "If child is a Document, DocumentFragment, or DocumentType, return
|
||
// false."
|
||
if (typeof child == "object"
|
||
&& (child.nodeType == Node.DOCUMENT_NODE
|
||
|| child.nodeType == Node.DOCUMENT_FRAGMENT_NODE
|
||
|| child.nodeType == Node.DOCUMENT_TYPE_NODE)) {
|
||
return false;
|
||
}
|
||
|
||
// "If child is an HTML element, set child to the local name of child."
|
||
if (isHtmlElement(child)) {
|
||
child = child.tagName.toLowerCase();
|
||
}
|
||
|
||
// "If child is not a string, return true."
|
||
if (typeof child != "string") {
|
||
return true;
|
||
}
|
||
|
||
// "If parent is an HTML element:"
|
||
if (isHtmlElement(parent_)) {
|
||
// "If child is "a", and parent or some ancestor of parent is an a,
|
||
// return false."
|
||
//
|
||
// "If child is a prohibited paragraph child name and parent or some
|
||
// ancestor of parent is an element with inline contents, return
|
||
// false."
|
||
//
|
||
// "If child is "h1", "h2", "h3", "h4", "h5", or "h6", and parent or
|
||
// some ancestor of parent is an HTML element with local name "h1",
|
||
// "h2", "h3", "h4", "h5", or "h6", return false."
|
||
var ancestor = parent_;
|
||
while (ancestor) {
|
||
if (child == "a" && isHtmlElement(ancestor, "a")) {
|
||
return false;
|
||
}
|
||
if (prohibitedParagraphChildNames.indexOf(child) != -1
|
||
&& isElementWithInlineContents(ancestor)) {
|
||
return false;
|
||
}
|
||
if (/^h[1-6]$/.test(child)
|
||
&& isHtmlElement(ancestor)
|
||
&& /^H[1-6]$/.test(ancestor.tagName)) {
|
||
return false;
|
||
}
|
||
ancestor = ancestor.parentNode;
|
||
}
|
||
|
||
// "Let parent be the local name of parent."
|
||
parent_ = parent_.tagName.toLowerCase();
|
||
}
|
||
|
||
// "If parent is an Element or DocumentFragment, return true."
|
||
if (typeof parent_ == "object"
|
||
&& (parent_.nodeType == Node.ELEMENT_NODE
|
||
|| parent_.nodeType == Node.DOCUMENT_FRAGMENT_NODE)) {
|
||
return true;
|
||
}
|
||
|
||
// "If parent is not a string, return false."
|
||
if (typeof parent_ != "string") {
|
||
return false;
|
||
}
|
||
|
||
// "If parent is on the left-hand side of an entry on the following list,
|
||
// then return true if child is listed on the right-hand side of that
|
||
// entry, and false otherwise."
|
||
switch (parent_) {
|
||
case "colgroup":
|
||
return child == "col";
|
||
case "table":
|
||
return ["caption", "col", "colgroup", "tbody", "td", "tfoot", "th", "thead", "tr"].indexOf(child) != -1;
|
||
case "tbody":
|
||
case "thead":
|
||
case "tfoot":
|
||
return ["td", "th", "tr"].indexOf(child) != -1;
|
||
case "tr":
|
||
return ["td", "th"].indexOf(child) != -1;
|
||
case "dl":
|
||
return ["dt", "dd"].indexOf(child) != -1;
|
||
case "dir":
|
||
case "ol":
|
||
case "ul":
|
||
return ["dir", "li", "ol", "ul"].indexOf(child) != -1;
|
||
case "hgroup":
|
||
return /^h[1-6]$/.test(child);
|
||
}
|
||
|
||
// "If child is "body", "caption", "col", "colgroup", "frame", "frameset",
|
||
// "head", "html", "tbody", "td", "tfoot", "th", "thead", or "tr", return
|
||
// false."
|
||
if (["body", "caption", "col", "colgroup", "frame", "frameset", "head",
|
||
"html", "tbody", "td", "tfoot", "th", "thead", "tr"].indexOf(child) != -1) {
|
||
return false;
|
||
}
|
||
|
||
// "If child is "dd" or "dt" and parent is not "dl", return false."
|
||
if (["dd", "dt"].indexOf(child) != -1
|
||
&& parent_ != "dl") {
|
||
return false;
|
||
}
|
||
|
||
// "If child is "li" and parent is not "ol" or "ul", return false."
|
||
if (child == "li"
|
||
&& parent_ != "ol"
|
||
&& parent_ != "ul") {
|
||
return false;
|
||
}
|
||
|
||
// "If parent is on the left-hand side of an entry on the following list
|
||
// and child is listed on the right-hand side of that entry, return false."
|
||
var table = [
|
||
[["a"], ["a"]],
|
||
[["dd", "dt"], ["dd", "dt"]],
|
||
[["h1", "h2", "h3", "h4", "h5", "h6"], ["h1", "h2", "h3", "h4", "h5", "h6"]],
|
||
[["li"], ["li"]],
|
||
[["nobr"], ["nobr"]],
|
||
[namesOfElementsWithInlineContents, prohibitedParagraphChildNames],
|
||
[["td", "th"], ["caption", "col", "colgroup", "tbody", "td", "tfoot", "th", "thead", "tr"]],
|
||
];
|
||
for (var i = 0; i < table.length; i++) {
|
||
if (table[i][0].indexOf(parent_) != -1
|
||
&& table[i][1].indexOf(child) != -1) {
|
||
return false;
|
||
}
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
|
||
//@}
|
||
|
||
//////////////////////////////////////
|
||
///// Inline formatting commands /////
|
||
//////////////////////////////////////
|
||
|
||
///// Inline formatting command definitions /////
|
||
//@{
|
||
|
||
// "A node node is effectively contained in a range range if range is not
|
||
// collapsed, and at least one of the following holds:"
|
||
function isEffectivelyContained(node, range) {
|
||
if (range.collapsed) {
|
||
return false;
|
||
}
|
||
|
||
// "node is contained in range."
|
||
if (isContained(node, range)) {
|
||
return true;
|
||
}
|
||
|
||
// "node is range's start node, it is a Text node, and its length is
|
||
// different from range's start offset."
|
||
if (node == range.startContainer
|
||
&& node.nodeType == Node.TEXT_NODE
|
||
&& getNodeLength(node) != range.startOffset) {
|
||
return true;
|
||
}
|
||
|
||
// "node is range's end node, it is a Text node, and range's end offset is
|
||
// not 0."
|
||
if (node == range.endContainer
|
||
&& node.nodeType == Node.TEXT_NODE
|
||
&& range.endOffset != 0) {
|
||
return true;
|
||
}
|
||
|
||
// "node has at least one child; and all its children are effectively
|
||
// contained in range; and either range's start node is not a descendant of
|
||
// node or is not a Text node or range's start offset is zero; and either
|
||
// range's end node is not a descendant of node or is not a Text node or
|
||
// range's end offset is its end node's length."
|
||
if (node.hasChildNodes()
|
||
&& [].every.call(node.childNodes, function(child) { return isEffectivelyContained(child, range) })
|
||
&& (!isDescendant(range.startContainer, node)
|
||
|| range.startContainer.nodeType != Node.TEXT_NODE
|
||
|| range.startOffset == 0)
|
||
&& (!isDescendant(range.endContainer, node)
|
||
|| range.endContainer.nodeType != Node.TEXT_NODE
|
||
|| range.endOffset == getNodeLength(range.endContainer))) {
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
// Like get(All)ContainedNodes(), but for effectively contained nodes.
|
||
function getEffectivelyContainedNodes(range, condition) {
|
||
if (typeof condition == "undefined") {
|
||
condition = function() { return true };
|
||
}
|
||
var node = range.startContainer;
|
||
while (isEffectivelyContained(node.parentNode, range)) {
|
||
node = node.parentNode;
|
||
}
|
||
|
||
var stop = nextNodeDescendants(range.endContainer);
|
||
|
||
var nodeList = [];
|
||
while (isBefore(node, stop)) {
|
||
if (isEffectivelyContained(node, range)
|
||
&& condition(node)) {
|
||
nodeList.push(node);
|
||
node = nextNodeDescendants(node);
|
||
continue;
|
||
}
|
||
node = nextNode(node);
|
||
}
|
||
return nodeList;
|
||
}
|
||
|
||
function getAllEffectivelyContainedNodes(range, condition) {
|
||
if (typeof condition == "undefined") {
|
||
condition = function() { return true };
|
||
}
|
||
var node = range.startContainer;
|
||
while (isEffectivelyContained(node.parentNode, range)) {
|
||
node = node.parentNode;
|
||
}
|
||
|
||
var stop = nextNodeDescendants(range.endContainer);
|
||
|
||
var nodeList = [];
|
||
while (isBefore(node, stop)) {
|
||
if (isEffectivelyContained(node, range)
|
||
&& condition(node)) {
|
||
nodeList.push(node);
|
||
}
|
||
node = nextNode(node);
|
||
}
|
||
return nodeList;
|
||
}
|
||
|
||
// "A modifiable element is a b, em, i, s, span, strong, sub, sup, or u element
|
||
// with no attributes except possibly style; or a font element with no
|
||
// attributes except possibly style, color, face, and/or size; or an a element
|
||
// with no attributes except possibly style and/or href."
|
||
function isModifiableElement(node) {
|
||
if (!isHtmlElement(node)) {
|
||
return false;
|
||
}
|
||
|
||
if (["B", "EM", "I", "S", "SPAN", "STRIKE", "STRONG", "SUB", "SUP", "U"].indexOf(node.tagName) != -1) {
|
||
if (node.attributes.length == 0) {
|
||
return true;
|
||
}
|
||
|
||
if (node.attributes.length == 1
|
||
&& node.hasAttribute("style")) {
|
||
return true;
|
||
}
|
||
}
|
||
|
||
if (node.tagName == "FONT" || node.tagName == "A") {
|
||
var numAttrs = node.attributes.length;
|
||
|
||
if (node.hasAttribute("style")) {
|
||
numAttrs--;
|
||
}
|
||
|
||
if (node.tagName == "FONT") {
|
||
if (node.hasAttribute("color")) {
|
||
numAttrs--;
|
||
}
|
||
|
||
if (node.hasAttribute("face")) {
|
||
numAttrs--;
|
||
}
|
||
|
||
if (node.hasAttribute("size")) {
|
||
numAttrs--;
|
||
}
|
||
}
|
||
|
||
if (node.tagName == "A"
|
||
&& node.hasAttribute("href")) {
|
||
numAttrs--;
|
||
}
|
||
|
||
if (numAttrs == 0) {
|
||
return true;
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
function isSimpleModifiableElement(node) {
|
||
// "A simple modifiable element is an HTML element for which at least one
|
||
// of the following holds:"
|
||
if (!isHtmlElement(node)) {
|
||
return false;
|
||
}
|
||
|
||
// Only these elements can possibly be a simple modifiable element.
|
||
if (["A", "B", "EM", "FONT", "I", "S", "SPAN", "STRIKE", "STRONG", "SUB", "SUP", "U"].indexOf(node.tagName) == -1) {
|
||
return false;
|
||
}
|
||
|
||
// "It is an a, b, em, font, i, s, span, strike, strong, sub, sup, or u
|
||
// element with no attributes."
|
||
if (node.attributes.length == 0) {
|
||
return true;
|
||
}
|
||
|
||
// If it's got more than one attribute, everything after this fails.
|
||
if (node.attributes.length > 1) {
|
||
return false;
|
||
}
|
||
|
||
// "It is an a, b, em, font, i, s, span, strike, strong, sub, sup, or u
|
||
// element with exactly one attribute, which is style, which sets no CSS
|
||
// properties (including invalid or unrecognized properties)."
|
||
//
|
||
// Not gonna try for invalid or unrecognized.
|
||
if (node.hasAttribute("style")
|
||
&& node.style.length == 0) {
|
||
return true;
|
||
}
|
||
|
||
// "It is an a element with exactly one attribute, which is href."
|
||
if (node.tagName == "A"
|
||
&& node.hasAttribute("href")) {
|
||
return true;
|
||
}
|
||
|
||
// "It is a font element with exactly one attribute, which is either color,
|
||
// face, or size."
|
||
if (node.tagName == "FONT"
|
||
&& (node.hasAttribute("color")
|
||
|| node.hasAttribute("face")
|
||
|| node.hasAttribute("size")
|
||
)) {
|
||
return true;
|
||
}
|
||
|
||
// "It is a b or strong element with exactly one attribute, which is style,
|
||
// and the style attribute sets exactly one CSS property (including invalid
|
||
// or unrecognized properties), which is "font-weight"."
|
||
if ((node.tagName == "B" || node.tagName == "STRONG")
|
||
&& node.hasAttribute("style")
|
||
&& node.style.length == 1
|
||
&& node.style.fontWeight != "") {
|
||
return true;
|
||
}
|
||
|
||
// "It is an i or em element with exactly one attribute, which is style,
|
||
// and the style attribute sets exactly one CSS property (including invalid
|
||
// or unrecognized properties), which is "font-style"."
|
||
if ((node.tagName == "I" || node.tagName == "EM")
|
||
&& node.hasAttribute("style")
|
||
&& node.style.length == 1
|
||
&& node.style.fontStyle != "") {
|
||
return true;
|
||
}
|
||
|
||
// "It is an a, font, or span element with exactly one attribute, which is
|
||
// style, and the style attribute sets exactly one CSS property (including
|
||
// invalid or unrecognized properties), and that property is not
|
||
// "text-decoration"."
|
||
if ((node.tagName == "A" || node.tagName == "FONT" || node.tagName == "SPAN")
|
||
&& node.hasAttribute("style")
|
||
&& node.style.length == 1
|
||
&& node.style.textDecoration == "") {
|
||
return true;
|
||
}
|
||
|
||
// "It is an a, font, s, span, strike, or u element with exactly one
|
||
// attribute, which is style, and the style attribute sets exactly one CSS
|
||
// property (including invalid or unrecognized properties), which is
|
||
// "text-decoration", which is set to "line-through" or "underline" or
|
||
// "overline" or "none"."
|
||
//
|
||
// The weird extra node.style.length check is for Firefox, which as of
|
||
// 8.0a2 has annoying and weird behavior here.
|
||
if (["A", "FONT", "S", "SPAN", "STRIKE", "U"].indexOf(node.tagName) != -1
|
||
&& node.hasAttribute("style")
|
||
&& (node.style.length == 1
|
||
|| (node.style.length == 4
|
||
&& "MozTextBlink" in node.style
|
||
&& "textDecorationColor" in node.style
|
||
&& "textDecorationLine" in node.style
|
||
&& "textDecorationStyle" in node.style)
|
||
)
|
||
&& (node.style.textDecoration == "line-through"
|
||
|| node.style.textDecoration == "underline"
|
||
|| node.style.textDecoration == "overline"
|
||
|| node.style.textDecoration == "none")) {
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
// "A formattable node is an editable visible node that is either a Text node,
|
||
// an img, or a br."
|
||
function isFormattableNode(node) {
|
||
return isEditable(node)
|
||
&& isVisible(node)
|
||
&& (node.nodeType == Node.TEXT_NODE
|
||
|| isHtmlElement(node, ["img", "br"]));
|
||
}
|
||
|
||
// "Two quantities are equivalent values for a command if either both are null,
|
||
// or both are strings and they're equal and the command does not define any
|
||
// equivalent values, or both are strings and the command defines equivalent
|
||
// values and they match the definition."
|
||
function areEquivalentValues(command, val1, val2) {
|
||
if (val1 === null && val2 === null) {
|
||
return true;
|
||
}
|
||
|
||
if (typeof val1 == "string"
|
||
&& typeof val2 == "string"
|
||
&& val1 == val2
|
||
&& !("equivalentValues" in commands[command])) {
|
||
return true;
|
||
}
|
||
|
||
if (typeof val1 == "string"
|
||
&& typeof val2 == "string"
|
||
&& "equivalentValues" in commands[command]
|
||
&& commands[command].equivalentValues(val1, val2)) {
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
// "Two quantities are loosely equivalent values for a command if either they
|
||
// are equivalent values for the command, or if the command is the fontSize
|
||
// command; one of the quantities is one of "x-small", "small", "medium",
|
||
// "large", "x-large", "xx-large", or "xxx-large"; and the other quantity is
|
||
// the resolved value of "font-size" on a font element whose size attribute has
|
||
// the corresponding value set ("1" through "7" respectively)."
|
||
function areLooselyEquivalentValues(command, val1, val2) {
|
||
if (areEquivalentValues(command, val1, val2)) {
|
||
return true;
|
||
}
|
||
|
||
if (command != "fontsize"
|
||
|| typeof val1 != "string"
|
||
|| typeof val2 != "string") {
|
||
return false;
|
||
}
|
||
|
||
// Static variables in JavaScript?
|
||
var callee = areLooselyEquivalentValues;
|
||
if (callee.sizeMap === undefined) {
|
||
callee.sizeMap = {};
|
||
var font = document.createElement("font");
|
||
document.body.appendChild(font);
|
||
["x-small", "small", "medium", "large", "x-large", "xx-large",
|
||
"xxx-large"].forEach(function(keyword) {
|
||
font.size = cssSizeToLegacy(keyword);
|
||
callee.sizeMap[keyword] = getComputedStyle(font).fontSize;
|
||
});
|
||
document.body.removeChild(font);
|
||
}
|
||
|
||
return val1 === callee.sizeMap[val2]
|
||
|| val2 === callee.sizeMap[val1];
|
||
}
|
||
|
||
//@}
|
||
///// Assorted inline formatting command algorithms /////
|
||
//@{
|
||
|
||
function getEffectiveCommandValue(node, command) {
|
||
// "If neither node nor its parent is an Element, return null."
|
||
if (node.nodeType != Node.ELEMENT_NODE
|
||
&& (!node.parentNode || node.parentNode.nodeType != Node.ELEMENT_NODE)) {
|
||
return null;
|
||
}
|
||
|
||
// "If node is not an Element, return the effective command value of its
|
||
// parent for command."
|
||
if (node.nodeType != Node.ELEMENT_NODE) {
|
||
return getEffectiveCommandValue(node.parentNode, command);
|
||
}
|
||
|
||
// "If command is "createLink" or "unlink":"
|
||
if (command == "createlink" || command == "unlink") {
|
||
// "While node is not null, and is not an a element that has an href
|
||
// attribute, set node to its parent."
|
||
while (node
|
||
&& (!isHtmlElement(node)
|
||
|| node.tagName != "A"
|
||
|| !node.hasAttribute("href"))) {
|
||
node = node.parentNode;
|
||
}
|
||
|
||
// "If node is null, return null."
|
||
if (!node) {
|
||
return null;
|
||
}
|
||
|
||
// "Return the value of node's href attribute."
|
||
return node.getAttribute("href");
|
||
}
|
||
|
||
// "If command is "backColor" or "hiliteColor":"
|
||
if (command == "backcolor"
|
||
|| command == "hilitecolor") {
|
||
// "While the resolved value of "background-color" on node is any
|
||
// fully transparent value, and node's parent is an Element, set
|
||
// node to its parent."
|
||
//
|
||
// Another lame hack to avoid flawed APIs.
|
||
while ((getComputedStyle(node).backgroundColor == "rgba(0, 0, 0, 0)"
|
||
|| getComputedStyle(node).backgroundColor === ""
|
||
|| getComputedStyle(node).backgroundColor == "transparent")
|
||
&& node.parentNode
|
||
&& node.parentNode.nodeType == Node.ELEMENT_NODE) {
|
||
node = node.parentNode;
|
||
}
|
||
|
||
// "Return the resolved value of "background-color" for node."
|
||
return getComputedStyle(node).backgroundColor;
|
||
}
|
||
|
||
// "If command is "subscript" or "superscript":"
|
||
if (command == "subscript" || command == "superscript") {
|
||
// "Let affected by subscript and affected by superscript be two
|
||
// boolean variables, both initially false."
|
||
var affectedBySubscript = false;
|
||
var affectedBySuperscript = false;
|
||
|
||
// "While node is an inline node:"
|
||
while (isInlineNode(node)) {
|
||
var verticalAlign = getComputedStyle(node).verticalAlign;
|
||
|
||
// "If node is a sub, set affected by subscript to true."
|
||
if (isHtmlElement(node, "sub")) {
|
||
affectedBySubscript = true;
|
||
// "Otherwise, if node is a sup, set affected by superscript to
|
||
// true."
|
||
} else if (isHtmlElement(node, "sup")) {
|
||
affectedBySuperscript = true;
|
||
}
|
||
|
||
// "Set node to its parent."
|
||
node = node.parentNode;
|
||
}
|
||
|
||
// "If affected by subscript and affected by superscript are both true,
|
||
// return the string "mixed"."
|
||
if (affectedBySubscript && affectedBySuperscript) {
|
||
return "mixed";
|
||
}
|
||
|
||
// "If affected by subscript is true, return "subscript"."
|
||
if (affectedBySubscript) {
|
||
return "subscript";
|
||
}
|
||
|
||
// "If affected by superscript is true, return "superscript"."
|
||
if (affectedBySuperscript) {
|
||
return "superscript";
|
||
}
|
||
|
||
// "Return null."
|
||
return null;
|
||
}
|
||
|
||
// "If command is "strikethrough", and the "text-decoration" property of
|
||
// node or any of its ancestors has resolved value containing
|
||
// "line-through", return "line-through". Otherwise, return null."
|
||
if (command == "strikethrough") {
|
||
do {
|
||
if (getComputedStyle(node).textDecoration.indexOf("line-through") != -1) {
|
||
return "line-through";
|
||
}
|
||
node = node.parentNode;
|
||
} while (node && node.nodeType == Node.ELEMENT_NODE);
|
||
return null;
|
||
}
|
||
|
||
// "If command is "underline", and the "text-decoration" property of node
|
||
// or any of its ancestors has resolved value containing "underline",
|
||
// return "underline". Otherwise, return null."
|
||
if (command == "underline") {
|
||
do {
|
||
if (getComputedStyle(node).textDecoration.indexOf("underline") != -1) {
|
||
return "underline";
|
||
}
|
||
node = node.parentNode;
|
||
} while (node && node.nodeType == Node.ELEMENT_NODE);
|
||
return null;
|
||
}
|
||
|
||
if (!("relevantCssProperty" in commands[command])) {
|
||
throw "Bug: no relevantCssProperty for " + command + " in getEffectiveCommandValue";
|
||
}
|
||
|
||
// "Return the resolved value for node of the relevant CSS property for
|
||
// command."
|
||
return getComputedStyle(node)[commands[command].relevantCssProperty];
|
||
}
|
||
|
||
function getSpecifiedCommandValue(element, command) {
|
||
// "If command is "backColor" or "hiliteColor" and element's display
|
||
// property does not have resolved value "inline", return null."
|
||
if ((command == "backcolor" || command == "hilitecolor")
|
||
&& getComputedStyle(element).display != "inline") {
|
||
return null;
|
||
}
|
||
|
||
// "If command is "createLink" or "unlink":"
|
||
if (command == "createlink" || command == "unlink") {
|
||
// "If element is an a element and has an href attribute, return the
|
||
// value of that attribute."
|
||
if (isHtmlElement(element)
|
||
&& element.tagName == "A"
|
||
&& element.hasAttribute("href")) {
|
||
return element.getAttribute("href");
|
||
}
|
||
|
||
// "Return null."
|
||
return null;
|
||
}
|
||
|
||
// "If command is "subscript" or "superscript":"
|
||
if (command == "subscript" || command == "superscript") {
|
||
// "If element is a sup, return "superscript"."
|
||
if (isHtmlElement(element, "sup")) {
|
||
return "superscript";
|
||
}
|
||
|
||
// "If element is a sub, return "subscript"."
|
||
if (isHtmlElement(element, "sub")) {
|
||
return "subscript";
|
||
}
|
||
|
||
// "Return null."
|
||
return null;
|
||
}
|
||
|
||
// "If command is "strikethrough", and element has a style attribute set,
|
||
// and that attribute sets "text-decoration":"
|
||
if (command == "strikethrough"
|
||
&& element.style.textDecoration != "") {
|
||
// "If element's style attribute sets "text-decoration" to a value
|
||
// containing "line-through", return "line-through"."
|
||
if (element.style.textDecoration.indexOf("line-through") != -1) {
|
||
return "line-through";
|
||
}
|
||
|
||
// "Return null."
|
||
return null;
|
||
}
|
||
|
||
// "If command is "strikethrough" and element is a s or strike element,
|
||
// return "line-through"."
|
||
if (command == "strikethrough"
|
||
&& isHtmlElement(element, ["S", "STRIKE"])) {
|
||
return "line-through";
|
||
}
|
||
|
||
// "If command is "underline", and element has a style attribute set, and
|
||
// that attribute sets "text-decoration":"
|
||
if (command == "underline"
|
||
&& element.style.textDecoration != "") {
|
||
// "If element's style attribute sets "text-decoration" to a value
|
||
// containing "underline", return "underline"."
|
||
if (element.style.textDecoration.indexOf("underline") != -1) {
|
||
return "underline";
|
||
}
|
||
|
||
// "Return null."
|
||
return null;
|
||
}
|
||
|
||
// "If command is "underline" and element is a u element, return
|
||
// "underline"."
|
||
if (command == "underline"
|
||
&& isHtmlElement(element, "U")) {
|
||
return "underline";
|
||
}
|
||
|
||
// "Let property be the relevant CSS property for command."
|
||
var property = commands[command].relevantCssProperty;
|
||
|
||
// "If property is null, return null."
|
||
if (property === null) {
|
||
return null;
|
||
}
|
||
|
||
// "If element has a style attribute set, and that attribute has the
|
||
// effect of setting property, return the value that it sets property to."
|
||
if (element.style[property] != "") {
|
||
return element.style[property];
|
||
}
|
||
|
||
// "If element is a font element that has an attribute whose effect is
|
||
// to create a presentational hint for property, return the value that the
|
||
// hint sets property to. (For a size of 7, this will be the non-CSS value
|
||
// "xxx-large".)"
|
||
if (isHtmlNamespace(element.namespaceURI)
|
||
&& element.tagName == "FONT") {
|
||
if (property == "color" && element.hasAttribute("color")) {
|
||
return element.color;
|
||
}
|
||
if (property == "fontFamily" && element.hasAttribute("face")) {
|
||
return element.face;
|
||
}
|
||
if (property == "fontSize" && element.hasAttribute("size")) {
|
||
// This is not even close to correct in general.
|
||
var size = parseInt(element.size);
|
||
if (size < 1) {
|
||
size = 1;
|
||
}
|
||
if (size > 7) {
|
||
size = 7;
|
||
}
|
||
return {
|
||
1: "x-small",
|
||
2: "small",
|
||
3: "medium",
|
||
4: "large",
|
||
5: "x-large",
|
||
6: "xx-large",
|
||
7: "xxx-large"
|
||
}[size];
|
||
}
|
||
}
|
||
|
||
// "If element is in the following list, and property is equal to the
|
||
// CSS property name listed for it, return the string listed for it."
|
||
//
|
||
// A list follows, whose meaning is copied here.
|
||
if (property == "fontWeight"
|
||
&& (element.tagName == "B" || element.tagName == "STRONG")) {
|
||
return "bold";
|
||
}
|
||
if (property == "fontStyle"
|
||
&& (element.tagName == "I" || element.tagName == "EM")) {
|
||
return "italic";
|
||
}
|
||
|
||
// "Return null."
|
||
return null;
|
||
}
|
||
|
||
function reorderModifiableDescendants(node, command, newValue) {
|
||
// "Let candidate equal node."
|
||
var candidate = node;
|
||
|
||
// "While candidate is a modifiable element, and candidate has exactly one
|
||
// child, and that child is also a modifiable element, and candidate is not
|
||
// a simple modifiable element or candidate's specified command value for
|
||
// command is not equivalent to new value, set candidate to its child."
|
||
while (isModifiableElement(candidate)
|
||
&& candidate.childNodes.length == 1
|
||
&& isModifiableElement(candidate.firstChild)
|
||
&& (!isSimpleModifiableElement(candidate)
|
||
|| !areEquivalentValues(command, getSpecifiedCommandValue(candidate, command), newValue))) {
|
||
candidate = candidate.firstChild;
|
||
}
|
||
|
||
// "If candidate is node, or is not a simple modifiable element, or its
|
||
// specified command value is not equivalent to new value, or its effective
|
||
// command value is not loosely equivalent to new value, abort these
|
||
// steps."
|
||
if (candidate == node
|
||
|| !isSimpleModifiableElement(candidate)
|
||
|| !areEquivalentValues(command, getSpecifiedCommandValue(candidate, command), newValue)
|
||
|| !areLooselyEquivalentValues(command, getEffectiveCommandValue(candidate, command), newValue)) {
|
||
return;
|
||
}
|
||
|
||
// "While candidate has children, insert the first child of candidate into
|
||
// candidate's parent immediately before candidate, preserving ranges."
|
||
while (candidate.hasChildNodes()) {
|
||
movePreservingRanges(candidate.firstChild, candidate.parentNode, getNodeIndex(candidate));
|
||
}
|
||
|
||
// "Insert candidate into node's parent immediately after node."
|
||
node.parentNode.insertBefore(candidate, node.nextSibling);
|
||
|
||
// "Append the node as the last child of candidate, preserving ranges."
|
||
movePreservingRanges(node, candidate, -1);
|
||
}
|
||
|
||
function recordValues(nodeList) {
|
||
// "Let values be a list of (node, command, specified command value)
|
||
// triples, initially empty."
|
||
var values = [];
|
||
|
||
// "For each node in node list, for each command in the list "subscript",
|
||
// "bold", "fontName", "fontSize", "foreColor", "hiliteColor", "italic",
|
||
// "strikethrough", and "underline" in that order:"
|
||
nodeList.forEach(function(node) {
|
||
["subscript", "bold", "fontname", "fontsize", "forecolor",
|
||
"hilitecolor", "italic", "strikethrough", "underline"].forEach(function(command) {
|
||
// "Let ancestor equal node."
|
||
var ancestor = node;
|
||
|
||
// "If ancestor is not an Element, set it to its parent."
|
||
if (ancestor.nodeType != Node.ELEMENT_NODE) {
|
||
ancestor = ancestor.parentNode;
|
||
}
|
||
|
||
// "While ancestor is an Element and its specified command value
|
||
// for command is null, set it to its parent."
|
||
while (ancestor
|
||
&& ancestor.nodeType == Node.ELEMENT_NODE
|
||
&& getSpecifiedCommandValue(ancestor, command) === null) {
|
||
ancestor = ancestor.parentNode;
|
||
}
|
||
|
||
// "If ancestor is an Element, add (node, command, ancestor's
|
||
// specified command value for command) to values. Otherwise add
|
||
// (node, command, null) to values."
|
||
if (ancestor && ancestor.nodeType == Node.ELEMENT_NODE) {
|
||
values.push([node, command, getSpecifiedCommandValue(ancestor, command)]);
|
||
} else {
|
||
values.push([node, command, null]);
|
||
}
|
||
});
|
||
});
|
||
|
||
// "Return values."
|
||
return values;
|
||
}
|
||
|
||
function restoreValues(values) {
|
||
// "For each (node, command, value) triple in values:"
|
||
values.forEach(function(triple) {
|
||
var node = triple[0];
|
||
var command = triple[1];
|
||
var value = triple[2];
|
||
|
||
// "Let ancestor equal node."
|
||
var ancestor = node;
|
||
|
||
// "If ancestor is not an Element, set it to its parent."
|
||
if (!ancestor || ancestor.nodeType != Node.ELEMENT_NODE) {
|
||
ancestor = ancestor.parentNode;
|
||
}
|
||
|
||
// "While ancestor is an Element and its specified command value for
|
||
// command is null, set it to its parent."
|
||
while (ancestor
|
||
&& ancestor.nodeType == Node.ELEMENT_NODE
|
||
&& getSpecifiedCommandValue(ancestor, command) === null) {
|
||
ancestor = ancestor.parentNode;
|
||
}
|
||
|
||
// "If value is null and ancestor is an Element, push down values on
|
||
// node for command, with new value null."
|
||
if (value === null
|
||
&& ancestor
|
||
&& ancestor.nodeType == Node.ELEMENT_NODE) {
|
||
pushDownValues(node, command, null);
|
||
|
||
// "Otherwise, if ancestor is an Element and its specified command
|
||
// value for command is not equivalent to value, or if ancestor is not
|
||
// an Element and value is not null, force the value of command to
|
||
// value on node."
|
||
} else if ((ancestor
|
||
&& ancestor.nodeType == Node.ELEMENT_NODE
|
||
&& !areEquivalentValues(command, getSpecifiedCommandValue(ancestor, command), value))
|
||
|| ((!ancestor || ancestor.nodeType != Node.ELEMENT_NODE)
|
||
&& value !== null)) {
|
||
forceValue(node, command, value);
|
||
}
|
||
});
|
||
}
|
||
|
||
|
||
//@}
|
||
///// Clearing an element's value /////
|
||
//@{
|
||
|
||
function clearValue(element, command) {
|
||
// "If element is not editable, return the empty list."
|
||
if (!isEditable(element)) {
|
||
return [];
|
||
}
|
||
|
||
// "If element's specified command value for command is null, return the
|
||
// empty list."
|
||
if (getSpecifiedCommandValue(element, command) === null) {
|
||
return [];
|
||
}
|
||
|
||
// "If element is a simple modifiable element:"
|
||
if (isSimpleModifiableElement(element)) {
|
||
// "Let children be the children of element."
|
||
var children = Array.prototype.slice.call(element.childNodes);
|
||
|
||
// "For each child in children, insert child into element's parent
|
||
// immediately before element, preserving ranges."
|
||
for (var i = 0; i < children.length; i++) {
|
||
movePreservingRanges(children[i], element.parentNode, getNodeIndex(element));
|
||
}
|
||
|
||
// "Remove element from its parent."
|
||
element.parentNode.removeChild(element);
|
||
|
||
// "Return children."
|
||
return children;
|
||
}
|
||
|
||
// "If command is "strikethrough", and element has a style attribute that
|
||
// sets "text-decoration" to some value containing "line-through", delete
|
||
// "line-through" from the value."
|
||
if (command == "strikethrough"
|
||
&& element.style.textDecoration.indexOf("line-through") != -1) {
|
||
if (element.style.textDecoration == "line-through") {
|
||
element.style.textDecoration = "";
|
||
} else {
|
||
element.style.textDecoration = element.style.textDecoration.replace("line-through", "");
|
||
}
|
||
if (element.getAttribute("style") == "") {
|
||
element.removeAttribute("style");
|
||
}
|
||
}
|
||
|
||
// "If command is "underline", and element has a style attribute that sets
|
||
// "text-decoration" to some value containing "underline", delete
|
||
// "underline" from the value."
|
||
if (command == "underline"
|
||
&& element.style.textDecoration.indexOf("underline") != -1) {
|
||
if (element.style.textDecoration == "underline") {
|
||
element.style.textDecoration = "";
|
||
} else {
|
||
element.style.textDecoration = element.style.textDecoration.replace("underline", "");
|
||
}
|
||
if (element.getAttribute("style") == "") {
|
||
element.removeAttribute("style");
|
||
}
|
||
}
|
||
|
||
// "If the relevant CSS property for command is not null, unset the CSS
|
||
// property property of element."
|
||
if (commands[command].relevantCssProperty !== null) {
|
||
element.style[commands[command].relevantCssProperty] = '';
|
||
if (element.getAttribute("style") == "") {
|
||
element.removeAttribute("style");
|
||
}
|
||
}
|
||
|
||
// "If element is a font element:"
|
||
if (isHtmlNamespace(element.namespaceURI) && element.tagName == "FONT") {
|
||
// "If command is "foreColor", unset element's color attribute, if set."
|
||
if (command == "forecolor") {
|
||
element.removeAttribute("color");
|
||
}
|
||
|
||
// "If command is "fontName", unset element's face attribute, if set."
|
||
if (command == "fontname") {
|
||
element.removeAttribute("face");
|
||
}
|
||
|
||
// "If command is "fontSize", unset element's size attribute, if set."
|
||
if (command == "fontsize") {
|
||
element.removeAttribute("size");
|
||
}
|
||
}
|
||
|
||
// "If element is an a element and command is "createLink" or "unlink",
|
||
// unset the href property of element."
|
||
if (isHtmlElement(element, "A")
|
||
&& (command == "createlink" || command == "unlink")) {
|
||
element.removeAttribute("href");
|
||
}
|
||
|
||
// "If element's specified command value for command is null, return the
|
||
// empty list."
|
||
if (getSpecifiedCommandValue(element, command) === null) {
|
||
return [];
|
||
}
|
||
|
||
// "Set the tag name of element to "span", and return the one-node list
|
||
// consisting of the result."
|
||
return [setTagName(element, "span")];
|
||
}
|
||
|
||
|
||
//@}
|
||
///// Pushing down values /////
|
||
//@{
|
||
|
||
function pushDownValues(node, command, newValue) {
|
||
// "If node's parent is not an Element, abort this algorithm."
|
||
if (!node.parentNode
|
||
|| node.parentNode.nodeType != Node.ELEMENT_NODE) {
|
||
return;
|
||
}
|
||
|
||
// "If the effective command value of command is loosely equivalent to new
|
||
// value on node, abort this algorithm."
|
||
if (areLooselyEquivalentValues(command, getEffectiveCommandValue(node, command), newValue)) {
|
||
return;
|
||
}
|
||
|
||
// "Let current ancestor be node's parent."
|
||
var currentAncestor = node.parentNode;
|
||
|
||
// "Let ancestor list be a list of Nodes, initially empty."
|
||
var ancestorList = [];
|
||
|
||
// "While current ancestor is an editable Element and the effective command
|
||
// value of command is not loosely equivalent to new value on it, append
|
||
// current ancestor to ancestor list, then set current ancestor to its
|
||
// parent."
|
||
while (isEditable(currentAncestor)
|
||
&& currentAncestor.nodeType == Node.ELEMENT_NODE
|
||
&& !areLooselyEquivalentValues(command, getEffectiveCommandValue(currentAncestor, command), newValue)) {
|
||
ancestorList.push(currentAncestor);
|
||
currentAncestor = currentAncestor.parentNode;
|
||
}
|
||
|
||
// "If ancestor list is empty, abort this algorithm."
|
||
if (!ancestorList.length) {
|
||
return;
|
||
}
|
||
|
||
// "Let propagated value be the specified command value of command on the
|
||
// last member of ancestor list."
|
||
var propagatedValue = getSpecifiedCommandValue(ancestorList[ancestorList.length - 1], command);
|
||
|
||
// "If propagated value is null and is not equal to new value, abort this
|
||
// algorithm."
|
||
if (propagatedValue === null && propagatedValue != newValue) {
|
||
return;
|
||
}
|
||
|
||
// "If the effective command value for the parent of the last member of
|
||
// ancestor list is not loosely equivalent to new value, and new value is
|
||
// not null, abort this algorithm."
|
||
if (newValue !== null
|
||
&& !areLooselyEquivalentValues(command, getEffectiveCommandValue(ancestorList[ancestorList.length - 1].parentNode, command), newValue)) {
|
||
return;
|
||
}
|
||
|
||
// "While ancestor list is not empty:"
|
||
while (ancestorList.length) {
|
||
// "Let current ancestor be the last member of ancestor list."
|
||
// "Remove the last member from ancestor list."
|
||
var currentAncestor = ancestorList.pop();
|
||
|
||
// "If the specified command value of current ancestor for command is
|
||
// not null, set propagated value to that value."
|
||
if (getSpecifiedCommandValue(currentAncestor, command) !== null) {
|
||
propagatedValue = getSpecifiedCommandValue(currentAncestor, command);
|
||
}
|
||
|
||
// "Let children be the children of current ancestor."
|
||
var children = Array.prototype.slice.call(currentAncestor.childNodes);
|
||
|
||
// "If the specified command value of current ancestor for command is
|
||
// not null, clear the value of current ancestor."
|
||
if (getSpecifiedCommandValue(currentAncestor, command) !== null) {
|
||
clearValue(currentAncestor, command);
|
||
}
|
||
|
||
// "For every child in children:"
|
||
for (var i = 0; i < children.length; i++) {
|
||
var child = children[i];
|
||
|
||
// "If child is node, continue with the next child."
|
||
if (child == node) {
|
||
continue;
|
||
}
|
||
|
||
// "If child is an Element whose specified command value for
|
||
// command is neither null nor equivalent to propagated value,
|
||
// continue with the next child."
|
||
if (child.nodeType == Node.ELEMENT_NODE
|
||
&& getSpecifiedCommandValue(child, command) !== null
|
||
&& !areEquivalentValues(command, propagatedValue, getSpecifiedCommandValue(child, command))) {
|
||
continue;
|
||
}
|
||
|
||
// "If child is the last member of ancestor list, continue with the
|
||
// next child."
|
||
if (child == ancestorList[ancestorList.length - 1]) {
|
||
continue;
|
||
}
|
||
|
||
// "Force the value of child, with command as in this algorithm
|
||
// and new value equal to propagated value."
|
||
forceValue(child, command, propagatedValue);
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
//@}
|
||
///// Forcing the value of a node /////
|
||
//@{
|
||
|
||
function forceValue(node, command, newValue) {
|
||
// "If node's parent is null, abort this algorithm."
|
||
if (!node.parentNode) {
|
||
return;
|
||
}
|
||
|
||
// "If new value is null, abort this algorithm."
|
||
if (newValue === null) {
|
||
return;
|
||
}
|
||
|
||
// "If node is an allowed child of "span":"
|
||
if (isAllowedChild(node, "span")) {
|
||
// "Reorder modifiable descendants of node's previousSibling."
|
||
reorderModifiableDescendants(node.previousSibling, command, newValue);
|
||
|
||
// "Reorder modifiable descendants of node's nextSibling."
|
||
reorderModifiableDescendants(node.nextSibling, command, newValue);
|
||
|
||
// "Wrap the one-node list consisting of node, with sibling criteria
|
||
// returning true for a simple modifiable element whose specified
|
||
// command value is equivalent to new value and whose effective command
|
||
// value is loosely equivalent to new value and false otherwise, and
|
||
// with new parent instructions returning null."
|
||
wrap([node],
|
||
function(node) {
|
||
return isSimpleModifiableElement(node)
|
||
&& areEquivalentValues(command, getSpecifiedCommandValue(node, command), newValue)
|
||
&& areLooselyEquivalentValues(command, getEffectiveCommandValue(node, command), newValue);
|
||
},
|
||
function() { return null }
|
||
);
|
||
}
|
||
|
||
// "If node is invisible, abort this algorithm."
|
||
if (isInvisible(node)) {
|
||
return;
|
||
}
|
||
|
||
// "If the effective command value of command is loosely equivalent to new
|
||
// value on node, abort this algorithm."
|
||
if (areLooselyEquivalentValues(command, getEffectiveCommandValue(node, command), newValue)) {
|
||
return;
|
||
}
|
||
|
||
// "If node is not an allowed child of "span":"
|
||
if (!isAllowedChild(node, "span")) {
|
||
// "Let children be all children of node, omitting any that are
|
||
// Elements whose specified command value for command is neither null
|
||
// nor equivalent to new value."
|
||
var children = [];
|
||
for (var i = 0; i < node.childNodes.length; i++) {
|
||
if (node.childNodes[i].nodeType == Node.ELEMENT_NODE) {
|
||
var specifiedValue = getSpecifiedCommandValue(node.childNodes[i], command);
|
||
|
||
if (specifiedValue !== null
|
||
&& !areEquivalentValues(command, newValue, specifiedValue)) {
|
||
continue;
|
||
}
|
||
}
|
||
children.push(node.childNodes[i]);
|
||
}
|
||
|
||
// "Force the value of each Node in children, with command and new
|
||
// value as in this invocation of the algorithm."
|
||
for (var i = 0; i < children.length; i++) {
|
||
forceValue(children[i], command, newValue);
|
||
}
|
||
|
||
// "Abort this algorithm."
|
||
return;
|
||
}
|
||
|
||
// "If the effective command value of command is loosely equivalent to new
|
||
// value on node, abort this algorithm."
|
||
if (areLooselyEquivalentValues(command, getEffectiveCommandValue(node, command), newValue)) {
|
||
return;
|
||
}
|
||
|
||
// "Let new parent be null."
|
||
var newParent = null;
|
||
|
||
// "If the CSS styling flag is false:"
|
||
if (!cssStylingFlag) {
|
||
// "If command is "bold" and new value is "bold", let new parent be the
|
||
// result of calling createElement("b") on the ownerDocument of node."
|
||
if (command == "bold" && (newValue == "bold" || newValue == "700")) {
|
||
newParent = node.ownerDocument.createElement("b");
|
||
}
|
||
|
||
// "If command is "italic" and new value is "italic", let new parent be
|
||
// the result of calling createElement("i") on the ownerDocument of
|
||
// node."
|
||
if (command == "italic" && newValue == "italic") {
|
||
newParent = node.ownerDocument.createElement("i");
|
||
}
|
||
|
||
// "If command is "strikethrough" and new value is "line-through", let
|
||
// new parent be the result of calling createElement("s") on the
|
||
// ownerDocument of node."
|
||
if (command == "strikethrough" && newValue == "line-through") {
|
||
newParent = node.ownerDocument.createElement("s");
|
||
}
|
||
|
||
// "If command is "underline" and new value is "underline", let new
|
||
// parent be the result of calling createElement("u") on the
|
||
// ownerDocument of node."
|
||
if (command == "underline" && newValue == "underline") {
|
||
newParent = node.ownerDocument.createElement("u");
|
||
}
|
||
|
||
// "If command is "foreColor", and new value is fully opaque with red,
|
||
// green, and blue components in the range 0 to 255:"
|
||
if (command == "forecolor" && parseSimpleColor(newValue)) {
|
||
// "Let new parent be the result of calling createElement("font")
|
||
// on the ownerDocument of node."
|
||
newParent = node.ownerDocument.createElement("font");
|
||
|
||
// "Set the color attribute of new parent to the result of applying
|
||
// the rules for serializing simple color values to new value
|
||
// (interpreted as a simple color)."
|
||
newParent.setAttribute("color", parseSimpleColor(newValue));
|
||
}
|
||
|
||
// "If command is "fontName", let new parent be the result of calling
|
||
// createElement("font") on the ownerDocument of node, then set the
|
||
// face attribute of new parent to new value."
|
||
if (command == "fontname") {
|
||
newParent = node.ownerDocument.createElement("font");
|
||
newParent.face = newValue;
|
||
}
|
||
}
|
||
|
||
// "If command is "createLink" or "unlink":"
|
||
if (command == "createlink" || command == "unlink") {
|
||
// "Let new parent be the result of calling createElement("a") on the
|
||
// ownerDocument of node."
|
||
newParent = node.ownerDocument.createElement("a");
|
||
|
||
// "Set the href attribute of new parent to new value."
|
||
newParent.setAttribute("href", newValue);
|
||
|
||
// "Let ancestor be node's parent."
|
||
var ancestor = node.parentNode;
|
||
|
||
// "While ancestor is not null:"
|
||
while (ancestor) {
|
||
// "If ancestor is an a, set the tag name of ancestor to "span",
|
||
// and let ancestor be the result."
|
||
if (isHtmlElement(ancestor, "A")) {
|
||
ancestor = setTagName(ancestor, "span");
|
||
}
|
||
|
||
// "Set ancestor to its parent."
|
||
ancestor = ancestor.parentNode;
|
||
}
|
||
}
|
||
|
||
// "If command is "fontSize"; and new value is one of "x-small", "small",
|
||
// "medium", "large", "x-large", "xx-large", or "xxx-large"; and either the
|
||
// CSS styling flag is false, or new value is "xxx-large": let new parent
|
||
// be the result of calling createElement("font") on the ownerDocument of
|
||
// node, then set the size attribute of new parent to the number from the
|
||
// following table based on new value: [table omitted]"
|
||
if (command == "fontsize"
|
||
&& ["x-small", "small", "medium", "large", "x-large", "xx-large", "xxx-large"].indexOf(newValue) != -1
|
||
&& (!cssStylingFlag || newValue == "xxx-large")) {
|
||
newParent = node.ownerDocument.createElement("font");
|
||
newParent.size = cssSizeToLegacy(newValue);
|
||
}
|
||
|
||
// "If command is "subscript" or "superscript" and new value is
|
||
// "subscript", let new parent be the result of calling
|
||
// createElement("sub") on the ownerDocument of node."
|
||
if ((command == "subscript" || command == "superscript")
|
||
&& newValue == "subscript") {
|
||
newParent = node.ownerDocument.createElement("sub");
|
||
}
|
||
|
||
// "If command is "subscript" or "superscript" and new value is
|
||
// "superscript", let new parent be the result of calling
|
||
// createElement("sup") on the ownerDocument of node."
|
||
if ((command == "subscript" || command == "superscript")
|
||
&& newValue == "superscript") {
|
||
newParent = node.ownerDocument.createElement("sup");
|
||
}
|
||
|
||
// "If new parent is null, let new parent be the result of calling
|
||
// createElement("span") on the ownerDocument of node."
|
||
if (!newParent) {
|
||
newParent = node.ownerDocument.createElement("span");
|
||
}
|
||
|
||
// "Insert new parent in node's parent before node."
|
||
node.parentNode.insertBefore(newParent, node);
|
||
|
||
// "If the effective command value of command for new parent is not loosely
|
||
// equivalent to new value, and the relevant CSS property for command is
|
||
// not null, set that CSS property of new parent to new value (if the new
|
||
// value would be valid)."
|
||
var property = commands[command].relevantCssProperty;
|
||
if (property !== null
|
||
&& !areLooselyEquivalentValues(command, getEffectiveCommandValue(newParent, command), newValue)) {
|
||
newParent.style[property] = newValue;
|
||
}
|
||
|
||
// "If command is "strikethrough", and new value is "line-through", and the
|
||
// effective command value of "strikethrough" for new parent is not
|
||
// "line-through", set the "text-decoration" property of new parent to
|
||
// "line-through"."
|
||
if (command == "strikethrough"
|
||
&& newValue == "line-through"
|
||
&& getEffectiveCommandValue(newParent, "strikethrough") != "line-through") {
|
||
newParent.style.textDecoration = "line-through";
|
||
}
|
||
|
||
// "If command is "underline", and new value is "underline", and the
|
||
// effective command value of "underline" for new parent is not
|
||
// "underline", set the "text-decoration" property of new parent to
|
||
// "underline"."
|
||
if (command == "underline"
|
||
&& newValue == "underline"
|
||
&& getEffectiveCommandValue(newParent, "underline") != "underline") {
|
||
newParent.style.textDecoration = "underline";
|
||
}
|
||
|
||
// "Append node to new parent as its last child, preserving ranges."
|
||
movePreservingRanges(node, newParent, newParent.childNodes.length);
|
||
|
||
// "If node is an Element and the effective command value of command for
|
||
// node is not loosely equivalent to new value:"
|
||
if (node.nodeType == Node.ELEMENT_NODE
|
||
&& !areEquivalentValues(command, getEffectiveCommandValue(node, command), newValue)) {
|
||
// "Insert node into the parent of new parent before new parent,
|
||
// preserving ranges."
|
||
movePreservingRanges(node, newParent.parentNode, getNodeIndex(newParent));
|
||
|
||
// "Remove new parent from its parent."
|
||
newParent.parentNode.removeChild(newParent);
|
||
|
||
// "Let children be all children of node, omitting any that are
|
||
// Elements whose specified command value for command is neither null
|
||
// nor equivalent to new value."
|
||
var children = [];
|
||
for (var i = 0; i < node.childNodes.length; i++) {
|
||
if (node.childNodes[i].nodeType == Node.ELEMENT_NODE) {
|
||
var specifiedValue = getSpecifiedCommandValue(node.childNodes[i], command);
|
||
|
||
if (specifiedValue !== null
|
||
&& !areEquivalentValues(command, newValue, specifiedValue)) {
|
||
continue;
|
||
}
|
||
}
|
||
children.push(node.childNodes[i]);
|
||
}
|
||
|
||
// "Force the value of each Node in children, with command and new
|
||
// value as in this invocation of the algorithm."
|
||
for (var i = 0; i < children.length; i++) {
|
||
forceValue(children[i], command, newValue);
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
//@}
|
||
///// Setting the selection's value /////
|
||
//@{
|
||
|
||
function setSelectionValue(command, newValue) {
|
||
// "If there is no formattable node effectively contained in the active
|
||
// range:"
|
||
if (!getAllEffectivelyContainedNodes(getActiveRange())
|
||
.some(isFormattableNode)) {
|
||
// "If command has inline command activated values, set the state
|
||
// override to true if new value is among them and false if it's not."
|
||
if ("inlineCommandActivatedValues" in commands[command]) {
|
||
setStateOverride(command, commands[command].inlineCommandActivatedValues
|
||
.indexOf(newValue) != -1);
|
||
}
|
||
|
||
// "If command is "subscript", unset the state override for
|
||
// "superscript"."
|
||
if (command == "subscript") {
|
||
unsetStateOverride("superscript");
|
||
}
|
||
|
||
// "If command is "superscript", unset the state override for
|
||
// "subscript"."
|
||
if (command == "superscript") {
|
||
unsetStateOverride("subscript");
|
||
}
|
||
|
||
// "If new value is null, unset the value override (if any)."
|
||
if (newValue === null) {
|
||
unsetValueOverride(command);
|
||
|
||
// "Otherwise, if command is "createLink" or it has a value specified,
|
||
// set the value override to new value."
|
||
} else if (command == "createlink" || "value" in commands[command]) {
|
||
setValueOverride(command, newValue);
|
||
}
|
||
|
||
// "Abort these steps."
|
||
return;
|
||
}
|
||
|
||
// "If the active range's start node is an editable Text node, and its
|
||
// start offset is neither zero nor its start node's length, call
|
||
// splitText() on the active range's start node, with argument equal to the
|
||
// active range's start offset. Then set the active range's start node to
|
||
// the result, and its start offset to zero."
|
||
if (isEditable(getActiveRange().startContainer)
|
||
&& getActiveRange().startContainer.nodeType == Node.TEXT_NODE
|
||
&& getActiveRange().startOffset != 0
|
||
&& getActiveRange().startOffset != getNodeLength(getActiveRange().startContainer)) {
|
||
// Account for browsers not following range mutation rules
|
||
var newActiveRange = document.createRange();
|
||
var newNode;
|
||
if (getActiveRange().startContainer == getActiveRange().endContainer) {
|
||
var newEndOffset = getActiveRange().endOffset - getActiveRange().startOffset;
|
||
newNode = getActiveRange().startContainer.splitText(getActiveRange().startOffset);
|
||
newActiveRange.setEnd(newNode, newEndOffset);
|
||
getActiveRange().setEnd(newNode, newEndOffset);
|
||
} else {
|
||
newNode = getActiveRange().startContainer.splitText(getActiveRange().startOffset);
|
||
}
|
||
newActiveRange.setStart(newNode, 0);
|
||
getSelection().removeAllRanges();
|
||
getSelection().addRange(newActiveRange);
|
||
|
||
getActiveRange().setStart(newNode, 0);
|
||
}
|
||
|
||
// "If the active range's end node is an editable Text node, and its end
|
||
// offset is neither zero nor its end node's length, call splitText() on
|
||
// the active range's end node, with argument equal to the active range's
|
||
// end offset."
|
||
if (isEditable(getActiveRange().endContainer)
|
||
&& getActiveRange().endContainer.nodeType == Node.TEXT_NODE
|
||
&& getActiveRange().endOffset != 0
|
||
&& getActiveRange().endOffset != getNodeLength(getActiveRange().endContainer)) {
|
||
// IE seems to mutate the range incorrectly here, so we need correction
|
||
// here as well. The active range will be temporarily in orphaned
|
||
// nodes, so calling getActiveRange() after splitText() but before
|
||
// fixing the range will throw an exception.
|
||
var activeRange = getActiveRange();
|
||
var newStart = [activeRange.startContainer, activeRange.startOffset];
|
||
var newEnd = [activeRange.endContainer, activeRange.endOffset];
|
||
activeRange.endContainer.splitText(activeRange.endOffset);
|
||
activeRange.setStart(newStart[0], newStart[1]);
|
||
activeRange.setEnd(newEnd[0], newEnd[1]);
|
||
|
||
getSelection().removeAllRanges();
|
||
getSelection().addRange(activeRange);
|
||
}
|
||
|
||
// "Let element list be all editable Elements effectively contained in the
|
||
// active range.
|
||
//
|
||
// "For each element in element list, clear the value of element."
|
||
getAllEffectivelyContainedNodes(getActiveRange(), function(node) {
|
||
return isEditable(node) && node.nodeType == Node.ELEMENT_NODE;
|
||
}).forEach(function(element) {
|
||
clearValue(element, command);
|
||
});
|
||
|
||
// "Let node list be all editable nodes effectively contained in the active
|
||
// range.
|
||
//
|
||
// "For each node in node list:"
|
||
getAllEffectivelyContainedNodes(getActiveRange(), isEditable).forEach(function(node) {
|
||
// "Push down values on node."
|
||
pushDownValues(node, command, newValue);
|
||
|
||
// "If node is an allowed child of span, force the value of node."
|
||
if (isAllowedChild(node, "span")) {
|
||
forceValue(node, command, newValue);
|
||
}
|
||
});
|
||
}
|
||
|
||
|
||
//@}
|
||
///// The backColor command /////
|
||
//@{
|
||
commands.backcolor = {
|
||
// Copy-pasted, same as hiliteColor
|
||
action: function(value) {
|
||
// Action is further copy-pasted, same as foreColor
|
||
|
||
// "If value is not a valid CSS color, prepend "#" to it."
|
||
//
|
||
// "If value is still not a valid CSS color, or if it is currentColor,
|
||
// return false."
|
||
//
|
||
// Cheap hack for testing, no attempt to be comprehensive.
|
||
if (/^([0-9a-fA-F]{3}){1,2}$/.test(value)) {
|
||
value = "#" + value;
|
||
}
|
||
if (!/^(rgba?|hsla?)\(.*\)$/.test(value)
|
||
&& !parseSimpleColor(value)
|
||
&& value.toLowerCase() != "transparent") {
|
||
return false;
|
||
}
|
||
|
||
// "Set the selection's value to value."
|
||
setSelectionValue("backcolor", value);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}, standardInlineValueCommand: true, relevantCssProperty: "backgroundColor",
|
||
equivalentValues: function(val1, val2) {
|
||
// "Either both strings are valid CSS colors and have the same red,
|
||
// green, blue, and alpha components, or neither string is a valid CSS
|
||
// color."
|
||
return normalizeColor(val1) === normalizeColor(val2);
|
||
},
|
||
};
|
||
|
||
//@}
|
||
///// The bold command /////
|
||
//@{
|
||
commands.bold = {
|
||
action: function() {
|
||
// "If queryCommandState("bold") returns true, set the selection's
|
||
// value to "normal". Otherwise set the selection's value to "bold".
|
||
// Either way, return true."
|
||
if (myQueryCommandState("bold")) {
|
||
setSelectionValue("bold", "normal");
|
||
} else {
|
||
setSelectionValue("bold", "bold");
|
||
}
|
||
return true;
|
||
}, inlineCommandActivatedValues: ["bold", "600", "700", "800", "900"],
|
||
relevantCssProperty: "fontWeight",
|
||
equivalentValues: function(val1, val2) {
|
||
// "Either the two strings are equal, or one is "bold" and the other is
|
||
// "700", or one is "normal" and the other is "400"."
|
||
return val1 == val2
|
||
|| (val1 == "bold" && val2 == "700")
|
||
|| (val1 == "700" && val2 == "bold")
|
||
|| (val1 == "normal" && val2 == "400")
|
||
|| (val1 == "400" && val2 == "normal");
|
||
},
|
||
};
|
||
|
||
//@}
|
||
///// The createLink command /////
|
||
//@{
|
||
commands.createlink = {
|
||
action: function(value) {
|
||
// "If value is the empty string, return false."
|
||
if (value === "") {
|
||
return false;
|
||
}
|
||
|
||
// "For each editable a element that has an href attribute and is an
|
||
// ancestor of some node effectively contained in the active range, set
|
||
// that a element's href attribute to value."
|
||
//
|
||
// TODO: We don't actually do this in tree order, not that it matters
|
||
// unless you're spying with mutation events.
|
||
getAllEffectivelyContainedNodes(getActiveRange()).forEach(function(node) {
|
||
getAncestors(node).forEach(function(ancestor) {
|
||
if (isEditable(ancestor)
|
||
&& isHtmlElement(ancestor, "a")
|
||
&& ancestor.hasAttribute("href")) {
|
||
ancestor.setAttribute("href", value);
|
||
}
|
||
});
|
||
});
|
||
|
||
// "Set the selection's value to value."
|
||
setSelectionValue("createlink", value);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
};
|
||
|
||
//@}
|
||
///// The fontName command /////
|
||
//@{
|
||
commands.fontname = {
|
||
action: function(value) {
|
||
// "Set the selection's value to value, then return true."
|
||
setSelectionValue("fontname", value);
|
||
return true;
|
||
}, standardInlineValueCommand: true, relevantCssProperty: "fontFamily"
|
||
};
|
||
|
||
//@}
|
||
///// The fontSize command /////
|
||
//@{
|
||
|
||
// Helper function for fontSize's action plus queryOutputHelper. It's just the
|
||
// middle of fontSize's action, ripped out into its own function. Returns null
|
||
// if the size is invalid.
|
||
function normalizeFontSize(value) {
|
||
// "Strip leading and trailing whitespace from value."
|
||
//
|
||
// Cheap hack, not following the actual algorithm.
|
||
value = value.trim();
|
||
|
||
// "If value is not a valid floating point number, and would not be a valid
|
||
// floating point number if a single leading "+" character were stripped,
|
||
// return false."
|
||
if (!/^[-+]?[0-9]+(\.[0-9]+)?([eE][-+]?[0-9]+)?$/.test(value)) {
|
||
return null;
|
||
}
|
||
|
||
var mode;
|
||
|
||
// "If the first character of value is "+", delete the character and let
|
||
// mode be "relative-plus"."
|
||
if (value[0] == "+") {
|
||
value = value.slice(1);
|
||
mode = "relative-plus";
|
||
// "Otherwise, if the first character of value is "-", delete the character
|
||
// and let mode be "relative-minus"."
|
||
} else if (value[0] == "-") {
|
||
value = value.slice(1);
|
||
mode = "relative-minus";
|
||
// "Otherwise, let mode be "absolute"."
|
||
} else {
|
||
mode = "absolute";
|
||
}
|
||
|
||
// "Apply the rules for parsing non-negative integers to value, and let
|
||
// number be the result."
|
||
//
|
||
// Another cheap hack.
|
||
var num = parseInt(value);
|
||
|
||
// "If mode is "relative-plus", add three to number."
|
||
if (mode == "relative-plus") {
|
||
num += 3;
|
||
}
|
||
|
||
// "If mode is "relative-minus", negate number, then add three to it."
|
||
if (mode == "relative-minus") {
|
||
num = 3 - num;
|
||
}
|
||
|
||
// "If number is less than one, let number equal 1."
|
||
if (num < 1) {
|
||
num = 1;
|
||
}
|
||
|
||
// "If number is greater than seven, let number equal 7."
|
||
if (num > 7) {
|
||
num = 7;
|
||
}
|
||
|
||
// "Set value to the string here corresponding to number:" [table omitted]
|
||
value = {
|
||
1: "x-small",
|
||
2: "small",
|
||
3: "medium",
|
||
4: "large",
|
||
5: "x-large",
|
||
6: "xx-large",
|
||
7: "xxx-large"
|
||
}[num];
|
||
|
||
return value;
|
||
}
|
||
|
||
commands.fontsize = {
|
||
action: function(value) {
|
||
value = normalizeFontSize(value);
|
||
if (value === null) {
|
||
return false;
|
||
}
|
||
|
||
// "Set the selection's value to value."
|
||
setSelectionValue("fontsize", value);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}, indeterm: function() {
|
||
// "True if among formattable nodes that are effectively contained in
|
||
// the active range, there are two that have distinct effective command
|
||
// values. Otherwise false."
|
||
return getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode)
|
||
.map(function(node) {
|
||
return getEffectiveCommandValue(node, "fontsize");
|
||
}).filter(function(value, i, arr) {
|
||
return arr.slice(0, i).indexOf(value) == -1;
|
||
}).length >= 2;
|
||
}, value: function() {
|
||
// "If the active range is null, return the empty string."
|
||
if (!getActiveRange()) {
|
||
return "";
|
||
}
|
||
|
||
// "Let pixel size be the effective command value of the first
|
||
// formattable node that is effectively contained in the active range,
|
||
// or if there is no such node, the effective command value of the
|
||
// active range's start node, in either case interpreted as a number of
|
||
// pixels."
|
||
var node = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode)[0];
|
||
if (node === undefined) {
|
||
node = getActiveRange().startContainer;
|
||
}
|
||
var pixelSize = getEffectiveCommandValue(node, "fontsize");
|
||
|
||
// "Return the legacy font size for pixel size."
|
||
return getLegacyFontSize(pixelSize);
|
||
}, relevantCssProperty: "fontSize"
|
||
};
|
||
|
||
function getLegacyFontSize(size) {
|
||
if (getLegacyFontSize.resultCache === undefined) {
|
||
getLegacyFontSize.resultCache = {};
|
||
}
|
||
|
||
if (getLegacyFontSize.resultCache[size] !== undefined) {
|
||
return getLegacyFontSize.resultCache[size];
|
||
}
|
||
|
||
// For convenience in other places in my code, I handle all sizes, not just
|
||
// pixel sizes as the spec says. This means pixel sizes have to be passed
|
||
// in suffixed with "px", not as plain numbers.
|
||
if (normalizeFontSize(size) !== null) {
|
||
return getLegacyFontSize.resultCache[size] = cssSizeToLegacy(normalizeFontSize(size));
|
||
}
|
||
|
||
if (["x-small", "x-small", "small", "medium", "large", "x-large", "xx-large", "xxx-large"].indexOf(size) == -1
|
||
&& !/^[0-9]+(\.[0-9]+)?(cm|mm|in|pt|pc|px)$/.test(size)) {
|
||
// There is no sensible legacy size for things like "2em".
|
||
return getLegacyFontSize.resultCache[size] = null;
|
||
}
|
||
|
||
var font = document.createElement("font");
|
||
document.body.appendChild(font);
|
||
if (size == "xxx-large") {
|
||
font.size = 7;
|
||
} else {
|
||
font.style.fontSize = size;
|
||
}
|
||
var pixelSize = parseInt(getComputedStyle(font).fontSize);
|
||
document.body.removeChild(font);
|
||
|
||
// "Let returned size be 1."
|
||
var returnedSize = 1;
|
||
|
||
// "While returned size is less than 7:"
|
||
while (returnedSize < 7) {
|
||
// "Let lower bound be the resolved value of "font-size" in pixels
|
||
// of a font element whose size attribute is set to returned size."
|
||
var font = document.createElement("font");
|
||
font.size = returnedSize;
|
||
document.body.appendChild(font);
|
||
var lowerBound = parseInt(getComputedStyle(font).fontSize);
|
||
|
||
// "Let upper bound be the resolved value of "font-size" in pixels
|
||
// of a font element whose size attribute is set to one plus
|
||
// returned size."
|
||
font.size = 1 + returnedSize;
|
||
var upperBound = parseInt(getComputedStyle(font).fontSize);
|
||
document.body.removeChild(font);
|
||
|
||
// "Let average be the average of upper bound and lower bound."
|
||
var average = (upperBound + lowerBound)/2;
|
||
|
||
// "If pixel size is less than average, return the one-element
|
||
// string consisting of the digit returned size."
|
||
if (pixelSize < average) {
|
||
return getLegacyFontSize.resultCache[size] = String(returnedSize);
|
||
}
|
||
|
||
// "Add one to returned size."
|
||
returnedSize++;
|
||
}
|
||
|
||
// "Return "7"."
|
||
return getLegacyFontSize.resultCache[size] = "7";
|
||
}
|
||
|
||
//@}
|
||
///// The foreColor command /////
|
||
//@{
|
||
commands.forecolor = {
|
||
action: function(value) {
|
||
// Copy-pasted, same as backColor and hiliteColor
|
||
|
||
// "If value is not a valid CSS color, prepend "#" to it."
|
||
//
|
||
// "If value is still not a valid CSS color, or if it is currentColor,
|
||
// return false."
|
||
//
|
||
// Cheap hack for testing, no attempt to be comprehensive.
|
||
if (/^([0-9a-fA-F]{3}){1,2}$/.test(value)) {
|
||
value = "#" + value;
|
||
}
|
||
if (!/^(rgba?|hsla?)\(.*\)$/.test(value)
|
||
&& !parseSimpleColor(value)
|
||
&& value.toLowerCase() != "transparent") {
|
||
return false;
|
||
}
|
||
|
||
// "Set the selection's value to value."
|
||
setSelectionValue("forecolor", value);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}, standardInlineValueCommand: true, relevantCssProperty: "color",
|
||
equivalentValues: function(val1, val2) {
|
||
// "Either both strings are valid CSS colors and have the same red,
|
||
// green, blue, and alpha components, or neither string is a valid CSS
|
||
// color."
|
||
return normalizeColor(val1) === normalizeColor(val2);
|
||
},
|
||
};
|
||
|
||
//@}
|
||
///// The hiliteColor command /////
|
||
//@{
|
||
commands.hilitecolor = {
|
||
// Copy-pasted, same as backColor
|
||
action: function(value) {
|
||
// Action is further copy-pasted, same as foreColor
|
||
|
||
// "If value is not a valid CSS color, prepend "#" to it."
|
||
//
|
||
// "If value is still not a valid CSS color, or if it is currentColor,
|
||
// return false."
|
||
//
|
||
// Cheap hack for testing, no attempt to be comprehensive.
|
||
if (/^([0-9a-fA-F]{3}){1,2}$/.test(value)) {
|
||
value = "#" + value;
|
||
}
|
||
if (!/^(rgba?|hsla?)\(.*\)$/.test(value)
|
||
&& !parseSimpleColor(value)
|
||
&& value.toLowerCase() != "transparent") {
|
||
return false;
|
||
}
|
||
|
||
// "Set the selection's value to value."
|
||
setSelectionValue("hilitecolor", value);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}, indeterm: function() {
|
||
// "True if among editable Text nodes that are effectively contained in
|
||
// the active range, there are two that have distinct effective command
|
||
// values. Otherwise false."
|
||
return getAllEffectivelyContainedNodes(getActiveRange(), function(node) {
|
||
return isEditable(node) && node.nodeType == Node.TEXT_NODE;
|
||
}).map(function(node) {
|
||
return getEffectiveCommandValue(node, "hilitecolor");
|
||
}).filter(function(value, i, arr) {
|
||
return arr.slice(0, i).indexOf(value) == -1;
|
||
}).length >= 2;
|
||
}, standardInlineValueCommand: true, relevantCssProperty: "backgroundColor",
|
||
equivalentValues: function(val1, val2) {
|
||
// "Either both strings are valid CSS colors and have the same red,
|
||
// green, blue, and alpha components, or neither string is a valid CSS
|
||
// color."
|
||
return normalizeColor(val1) === normalizeColor(val2);
|
||
},
|
||
};
|
||
|
||
//@}
|
||
///// The italic command /////
|
||
//@{
|
||
commands.italic = {
|
||
action: function() {
|
||
// "If queryCommandState("italic") returns true, set the selection's
|
||
// value to "normal". Otherwise set the selection's value to "italic".
|
||
// Either way, return true."
|
||
if (myQueryCommandState("italic")) {
|
||
setSelectionValue("italic", "normal");
|
||
} else {
|
||
setSelectionValue("italic", "italic");
|
||
}
|
||
return true;
|
||
}, inlineCommandActivatedValues: ["italic", "oblique"],
|
||
relevantCssProperty: "fontStyle"
|
||
};
|
||
|
||
//@}
|
||
///// The removeFormat command /////
|
||
//@{
|
||
commands.removeformat = {
|
||
action: function() {
|
||
// "A removeFormat candidate is an editable HTML element with local
|
||
// name "abbr", "acronym", "b", "bdi", "bdo", "big", "blink", "cite",
|
||
// "code", "dfn", "em", "font", "i", "ins", "kbd", "mark", "nobr", "q",
|
||
// "s", "samp", "small", "span", "strike", "strong", "sub", "sup",
|
||
// "tt", "u", or "var"."
|
||
function isRemoveFormatCandidate(node) {
|
||
return isEditable(node)
|
||
&& isHtmlElement(node, ["abbr", "acronym", "b", "bdi", "bdo",
|
||
"big", "blink", "cite", "code", "dfn", "em", "font", "i",
|
||
"ins", "kbd", "mark", "nobr", "q", "s", "samp", "small",
|
||
"span", "strike", "strong", "sub", "sup", "tt", "u", "var"]);
|
||
}
|
||
|
||
// "Let elements to remove be a list of every removeFormat candidate
|
||
// effectively contained in the active range."
|
||
var elementsToRemove = getAllEffectivelyContainedNodes(getActiveRange(), isRemoveFormatCandidate);
|
||
|
||
// "For each element in elements to remove:"
|
||
elementsToRemove.forEach(function(element) {
|
||
// "While element has children, insert the first child of element
|
||
// into the parent of element immediately before element,
|
||
// preserving ranges."
|
||
while (element.hasChildNodes()) {
|
||
movePreservingRanges(element.firstChild, element.parentNode, getNodeIndex(element));
|
||
}
|
||
|
||
// "Remove element from its parent."
|
||
element.parentNode.removeChild(element);
|
||
});
|
||
|
||
// "If the active range's start node is an editable Text node, and its
|
||
// start offset is neither zero nor its start node's length, call
|
||
// splitText() on the active range's start node, with argument equal to
|
||
// the active range's start offset. Then set the active range's start
|
||
// node to the result, and its start offset to zero."
|
||
if (isEditable(getActiveRange().startContainer)
|
||
&& getActiveRange().startContainer.nodeType == Node.TEXT_NODE
|
||
&& getActiveRange().startOffset != 0
|
||
&& getActiveRange().startOffset != getNodeLength(getActiveRange().startContainer)) {
|
||
// Account for browsers not following range mutation rules
|
||
if (getActiveRange().startContainer == getActiveRange().endContainer) {
|
||
var newEnd = getActiveRange().endOffset - getActiveRange().startOffset;
|
||
var newNode = getActiveRange().startContainer.splitText(getActiveRange().startOffset);
|
||
getActiveRange().setStart(newNode, 0);
|
||
getActiveRange().setEnd(newNode, newEnd);
|
||
} else {
|
||
getActiveRange().setStart(getActiveRange().startContainer.splitText(getActiveRange().startOffset), 0);
|
||
}
|
||
}
|
||
|
||
// "If the active range's end node is an editable Text node, and its
|
||
// end offset is neither zero nor its end node's length, call
|
||
// splitText() on the active range's end node, with argument equal to
|
||
// the active range's end offset."
|
||
if (isEditable(getActiveRange().endContainer)
|
||
&& getActiveRange().endContainer.nodeType == Node.TEXT_NODE
|
||
&& getActiveRange().endOffset != 0
|
||
&& getActiveRange().endOffset != getNodeLength(getActiveRange().endContainer)) {
|
||
// IE seems to mutate the range incorrectly here, so we need
|
||
// correction here as well. Have to be careful to set the range to
|
||
// something not including the text node so that getActiveRange()
|
||
// doesn't throw an exception due to a temporarily detached
|
||
// endpoint.
|
||
var newStart = [getActiveRange().startContainer, getActiveRange().startOffset];
|
||
var newEnd = [getActiveRange().endContainer, getActiveRange().endOffset];
|
||
getActiveRange().setEnd(document.documentElement, 0);
|
||
newEnd[0].splitText(newEnd[1]);
|
||
getActiveRange().setStart(newStart[0], newStart[1]);
|
||
getActiveRange().setEnd(newEnd[0], newEnd[1]);
|
||
}
|
||
|
||
// "Let node list consist of all editable nodes effectively contained
|
||
// in the active range."
|
||
//
|
||
// "For each node in node list, while node's parent is a removeFormat
|
||
// candidate in the same editing host as node, split the parent of the
|
||
// one-node list consisting of node."
|
||
getAllEffectivelyContainedNodes(getActiveRange(), isEditable).forEach(function(node) {
|
||
while (isRemoveFormatCandidate(node.parentNode)
|
||
&& inSameEditingHost(node.parentNode, node)) {
|
||
splitParent([node]);
|
||
}
|
||
});
|
||
|
||
// "For each of the entries in the following list, in the given order,
|
||
// set the selection's value to null, with command as given."
|
||
[
|
||
"subscript",
|
||
"bold",
|
||
"fontname",
|
||
"fontsize",
|
||
"forecolor",
|
||
"hilitecolor",
|
||
"italic",
|
||
"strikethrough",
|
||
"underline",
|
||
].forEach(function(command) {
|
||
setSelectionValue(command, null);
|
||
});
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
};
|
||
|
||
//@}
|
||
///// The strikethrough command /////
|
||
//@{
|
||
commands.strikethrough = {
|
||
action: function() {
|
||
// "If queryCommandState("strikethrough") returns true, set the
|
||
// selection's value to null. Otherwise set the selection's value to
|
||
// "line-through". Either way, return true."
|
||
if (myQueryCommandState("strikethrough")) {
|
||
setSelectionValue("strikethrough", null);
|
||
} else {
|
||
setSelectionValue("strikethrough", "line-through");
|
||
}
|
||
return true;
|
||
}, inlineCommandActivatedValues: ["line-through"]
|
||
};
|
||
|
||
//@}
|
||
///// The subscript command /////
|
||
//@{
|
||
commands.subscript = {
|
||
action: function() {
|
||
// "Call queryCommandState("subscript"), and let state be the result."
|
||
var state = myQueryCommandState("subscript");
|
||
|
||
// "Set the selection's value to null."
|
||
setSelectionValue("subscript", null);
|
||
|
||
// "If state is false, set the selection's value to "subscript"."
|
||
if (!state) {
|
||
setSelectionValue("subscript", "subscript");
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}, indeterm: function() {
|
||
// "True if either among formattable nodes that are effectively
|
||
// contained in the active range, there is at least one with effective
|
||
// command value "subscript" and at least one with some other effective
|
||
// command value; or if there is some formattable node effectively
|
||
// contained in the active range with effective command value "mixed".
|
||
// Otherwise false."
|
||
var nodes = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode);
|
||
return (nodes.some(function(node) { return getEffectiveCommandValue(node, "subscript") == "subscript" })
|
||
&& nodes.some(function(node) { return getEffectiveCommandValue(node, "subscript") != "subscript" }))
|
||
|| nodes.some(function(node) { return getEffectiveCommandValue(node, "subscript") == "mixed" });
|
||
}, inlineCommandActivatedValues: ["subscript"],
|
||
};
|
||
|
||
//@}
|
||
///// The superscript command /////
|
||
//@{
|
||
commands.superscript = {
|
||
action: function() {
|
||
// "Call queryCommandState("superscript"), and let state be the
|
||
// result."
|
||
var state = myQueryCommandState("superscript");
|
||
|
||
// "Set the selection's value to null."
|
||
setSelectionValue("superscript", null);
|
||
|
||
// "If state is false, set the selection's value to "superscript"."
|
||
if (!state) {
|
||
setSelectionValue("superscript", "superscript");
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}, indeterm: function() {
|
||
// "True if either among formattable nodes that are effectively
|
||
// contained in the active range, there is at least one with effective
|
||
// command value "superscript" and at least one with some other
|
||
// effective command value; or if there is some formattable node
|
||
// effectively contained in the active range with effective command
|
||
// value "mixed". Otherwise false."
|
||
var nodes = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode);
|
||
return (nodes.some(function(node) { return getEffectiveCommandValue(node, "superscript") == "superscript" })
|
||
&& nodes.some(function(node) { return getEffectiveCommandValue(node, "superscript") != "superscript" }))
|
||
|| nodes.some(function(node) { return getEffectiveCommandValue(node, "superscript") == "mixed" });
|
||
}, inlineCommandActivatedValues: ["superscript"],
|
||
};
|
||
|
||
//@}
|
||
///// The underline command /////
|
||
//@{
|
||
commands.underline = {
|
||
action: function() {
|
||
// "If queryCommandState("underline") returns true, set the selection's
|
||
// value to null. Otherwise set the selection's value to "underline".
|
||
// Either way, return true."
|
||
if (myQueryCommandState("underline")) {
|
||
setSelectionValue("underline", null);
|
||
} else {
|
||
setSelectionValue("underline", "underline");
|
||
}
|
||
return true;
|
||
}, inlineCommandActivatedValues: ["underline"]
|
||
};
|
||
|
||
//@}
|
||
///// The unlink command /////
|
||
//@{
|
||
commands.unlink = {
|
||
action: function() {
|
||
// "Let hyperlinks be a list of every a element that has an href
|
||
// attribute and is contained in the active range or is an ancestor of
|
||
// one of its boundary points."
|
||
//
|
||
// As usual, take care to ensure it's tree order. The correctness of
|
||
// the following is left as an exercise for the reader.
|
||
var range = getActiveRange();
|
||
var hyperlinks = [];
|
||
for (
|
||
var node = range.startContainer;
|
||
node;
|
||
node = node.parentNode
|
||
) {
|
||
if (isHtmlElement(node, "A")
|
||
&& node.hasAttribute("href")) {
|
||
hyperlinks.unshift(node);
|
||
}
|
||
}
|
||
for (
|
||
var node = range.startContainer;
|
||
node != nextNodeDescendants(range.endContainer);
|
||
node = nextNode(node)
|
||
) {
|
||
if (isHtmlElement(node, "A")
|
||
&& node.hasAttribute("href")
|
||
&& (isContained(node, range)
|
||
|| isAncestor(node, range.endContainer)
|
||
|| node == range.endContainer)) {
|
||
hyperlinks.push(node);
|
||
}
|
||
}
|
||
|
||
// "Clear the value of each member of hyperlinks."
|
||
for (var i = 0; i < hyperlinks.length; i++) {
|
||
clearValue(hyperlinks[i], "unlink");
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
};
|
||
|
||
//@}
|
||
|
||
/////////////////////////////////////
|
||
///// Block formatting commands /////
|
||
/////////////////////////////////////
|
||
|
||
///// Block formatting command definitions /////
|
||
//@{
|
||
|
||
// "An indentation element is either a blockquote, or a div that has a style
|
||
// attribute that sets "margin" or some subproperty of it."
|
||
function isIndentationElement(node) {
|
||
if (!isHtmlElement(node)) {
|
||
return false;
|
||
}
|
||
|
||
if (node.tagName == "BLOCKQUOTE") {
|
||
return true;
|
||
}
|
||
|
||
if (node.tagName != "DIV") {
|
||
return false;
|
||
}
|
||
|
||
for (var i = 0; i < node.style.length; i++) {
|
||
// Approximate check
|
||
if (/^(-[a-z]+-)?margin/.test(node.style[i])) {
|
||
return true;
|
||
}
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
// "A simple indentation element is an indentation element that has no
|
||
// attributes except possibly
|
||
//
|
||
// * "a style attribute that sets no properties other than "margin",
|
||
// "border", "padding", or subproperties of those; and/or
|
||
// * "a dir attribute."
|
||
function isSimpleIndentationElement(node) {
|
||
if (!isIndentationElement(node)) {
|
||
return false;
|
||
}
|
||
|
||
for (var i = 0; i < node.attributes.length; i++) {
|
||
if (!isHtmlNamespace(node.attributes[i].namespaceURI)
|
||
|| ["style", "dir"].indexOf(node.attributes[i].name) == -1) {
|
||
return false;
|
||
}
|
||
}
|
||
|
||
for (var i = 0; i < node.style.length; i++) {
|
||
// This is approximate, but it works well enough for my purposes.
|
||
if (!/^(-[a-z]+-)?(margin|border|padding)/.test(node.style[i])) {
|
||
return false;
|
||
}
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
// "A non-list single-line container is an HTML element with local name
|
||
// "address", "div", "h1", "h2", "h3", "h4", "h5", "h6", "listing", "p", "pre",
|
||
// or "xmp"."
|
||
function isNonListSingleLineContainer(node) {
|
||
return isHtmlElement(node, ["address", "div", "h1", "h2", "h3", "h4", "h5",
|
||
"h6", "listing", "p", "pre", "xmp"]);
|
||
}
|
||
|
||
// "A single-line container is either a non-list single-line container, or an
|
||
// HTML element with local name "li", "dt", or "dd"."
|
||
function isSingleLineContainer(node) {
|
||
return isNonListSingleLineContainer(node)
|
||
|| isHtmlElement(node, ["li", "dt", "dd"]);
|
||
}
|
||
|
||
function getBlockNodeOf(node) {
|
||
// "While node is an inline node, set node to its parent."
|
||
while (isInlineNode(node)) {
|
||
node = node.parentNode;
|
||
}
|
||
|
||
// "Return node."
|
||
return node;
|
||
}
|
||
|
||
//@}
|
||
///// Assorted block formatting command algorithms /////
|
||
//@{
|
||
|
||
function fixDisallowedAncestors(node) {
|
||
// "If node is not editable, abort these steps."
|
||
if (!isEditable(node)) {
|
||
return;
|
||
}
|
||
|
||
// "If node is not an allowed child of any of its ancestors in the same
|
||
// editing host:"
|
||
if (getAncestors(node).every(function(ancestor) {
|
||
return !inSameEditingHost(node, ancestor)
|
||
|| !isAllowedChild(node, ancestor)
|
||
})) {
|
||
// "If node is a dd or dt, wrap the one-node list consisting of node,
|
||
// with sibling criteria returning true for any dl with no attributes
|
||
// and false otherwise, and new parent instructions returning the
|
||
// result of calling createElement("dl") on the context object. Then
|
||
// abort these steps."
|
||
if (isHtmlElement(node, ["dd", "dt"])) {
|
||
wrap([node],
|
||
function(sibling) { return isHtmlElement(sibling, "dl") && !sibling.attributes.length },
|
||
function() { return document.createElement("dl") });
|
||
return;
|
||
}
|
||
|
||
// "If "p" is not an allowed child of the editing host of node, abort
|
||
// these steps."
|
||
if (!isAllowedChild("p", getEditingHostOf(node))) {
|
||
return;
|
||
}
|
||
|
||
// "If node is not a prohibited paragraph child, abort these steps."
|
||
if (!isProhibitedParagraphChild(node)) {
|
||
return;
|
||
}
|
||
|
||
// "Set the tag name of node to the default single-line container name,
|
||
// and let node be the result."
|
||
node = setTagName(node, defaultSingleLineContainerName);
|
||
|
||
// "Fix disallowed ancestors of node."
|
||
fixDisallowedAncestors(node);
|
||
|
||
// "Let children be node's children."
|
||
var children = [].slice.call(node.childNodes);
|
||
|
||
// "For each child in children, if child is a prohibited paragraph
|
||
// child:"
|
||
children.filter(isProhibitedParagraphChild)
|
||
.forEach(function(child) {
|
||
// "Record the values of the one-node list consisting of child, and
|
||
// let values be the result."
|
||
var values = recordValues([child]);
|
||
|
||
// "Split the parent of the one-node list consisting of child."
|
||
splitParent([child]);
|
||
|
||
// "Restore the values from values."
|
||
restoreValues(values);
|
||
});
|
||
|
||
// "Abort these steps."
|
||
return;
|
||
}
|
||
|
||
// "Record the values of the one-node list consisting of node, and let
|
||
// values be the result."
|
||
var values = recordValues([node]);
|
||
|
||
// "While node is not an allowed child of its parent, split the parent of
|
||
// the one-node list consisting of node."
|
||
while (!isAllowedChild(node, node.parentNode)) {
|
||
splitParent([node]);
|
||
}
|
||
|
||
// "Restore the values from values."
|
||
restoreValues(values);
|
||
}
|
||
|
||
function normalizeSublists(item) {
|
||
// "If item is not an li or it is not editable or its parent is not
|
||
// editable, abort these steps."
|
||
if (!isHtmlElement(item, "LI")
|
||
|| !isEditable(item)
|
||
|| !isEditable(item.parentNode)) {
|
||
return;
|
||
}
|
||
|
||
// "Let new item be null."
|
||
var newItem = null;
|
||
|
||
// "While item has an ol or ul child:"
|
||
while ([].some.call(item.childNodes, function (node) { return isHtmlElement(node, ["OL", "UL"]) })) {
|
||
// "Let child be the last child of item."
|
||
var child = item.lastChild;
|
||
|
||
// "If child is an ol or ul, or new item is null and child is a Text
|
||
// node whose data consists of zero of more space characters:"
|
||
if (isHtmlElement(child, ["OL", "UL"])
|
||
|| (!newItem && child.nodeType == Node.TEXT_NODE && /^[ \t\n\f\r]*$/.test(child.data))) {
|
||
// "Set new item to null."
|
||
newItem = null;
|
||
|
||
// "Insert child into the parent of item immediately following
|
||
// item, preserving ranges."
|
||
movePreservingRanges(child, item.parentNode, 1 + getNodeIndex(item));
|
||
|
||
// "Otherwise:"
|
||
} else {
|
||
// "If new item is null, let new item be the result of calling
|
||
// createElement("li") on the ownerDocument of item, then insert
|
||
// new item into the parent of item immediately after item."
|
||
if (!newItem) {
|
||
newItem = item.ownerDocument.createElement("li");
|
||
item.parentNode.insertBefore(newItem, item.nextSibling);
|
||
}
|
||
|
||
// "Insert child into new item as its first child, preserving
|
||
// ranges."
|
||
movePreservingRanges(child, newItem, 0);
|
||
}
|
||
}
|
||
}
|
||
|
||
function getSelectionListState() {
|
||
// "If the active range is null, return "none"."
|
||
if (!getActiveRange()) {
|
||
return "none";
|
||
}
|
||
|
||
// "Block-extend the active range, and let new range be the result."
|
||
var newRange = blockExtend(getActiveRange());
|
||
|
||
// "Let node list be a list of nodes, initially empty."
|
||
//
|
||
// "For each node contained in new range, append node to node list if the
|
||
// last member of node list (if any) is not an ancestor of node; node is
|
||
// editable; node is not an indentation element; and node is either an ol
|
||
// or ul, or the child of an ol or ul, or an allowed child of "li"."
|
||
var nodeList = getContainedNodes(newRange, function(node) {
|
||
return isEditable(node)
|
||
&& !isIndentationElement(node)
|
||
&& (isHtmlElement(node, ["ol", "ul"])
|
||
|| isHtmlElement(node.parentNode, ["ol", "ul"])
|
||
|| isAllowedChild(node, "li"));
|
||
});
|
||
|
||
// "If node list is empty, return "none"."
|
||
if (!nodeList.length) {
|
||
return "none";
|
||
}
|
||
|
||
// "If every member of node list is either an ol or the child of an ol or
|
||
// the child of an li child of an ol, and none is a ul or an ancestor of a
|
||
// ul, return "ol"."
|
||
if (nodeList.every(function(node) {
|
||
return isHtmlElement(node, "ol")
|
||
|| isHtmlElement(node.parentNode, "ol")
|
||
|| (isHtmlElement(node.parentNode, "li") && isHtmlElement(node.parentNode.parentNode, "ol"));
|
||
})
|
||
&& !nodeList.some(function(node) { return isHtmlElement(node, "ul") || ("querySelector" in node && node.querySelector("ul")) })) {
|
||
return "ol";
|
||
}
|
||
|
||
// "If every member of node list is either a ul or the child of a ul or the
|
||
// child of an li child of a ul, and none is an ol or an ancestor of an ol,
|
||
// return "ul"."
|
||
if (nodeList.every(function(node) {
|
||
return isHtmlElement(node, "ul")
|
||
|| isHtmlElement(node.parentNode, "ul")
|
||
|| (isHtmlElement(node.parentNode, "li") && isHtmlElement(node.parentNode.parentNode, "ul"));
|
||
})
|
||
&& !nodeList.some(function(node) { return isHtmlElement(node, "ol") || ("querySelector" in node && node.querySelector("ol")) })) {
|
||
return "ul";
|
||
}
|
||
|
||
var hasOl = nodeList.some(function(node) {
|
||
return isHtmlElement(node, "ol")
|
||
|| isHtmlElement(node.parentNode, "ol")
|
||
|| ("querySelector" in node && node.querySelector("ol"))
|
||
|| (isHtmlElement(node.parentNode, "li") && isHtmlElement(node.parentNode.parentNode, "ol"));
|
||
});
|
||
var hasUl = nodeList.some(function(node) {
|
||
return isHtmlElement(node, "ul")
|
||
|| isHtmlElement(node.parentNode, "ul")
|
||
|| ("querySelector" in node && node.querySelector("ul"))
|
||
|| (isHtmlElement(node.parentNode, "li") && isHtmlElement(node.parentNode.parentNode, "ul"));
|
||
});
|
||
// "If some member of node list is either an ol or the child or ancestor of
|
||
// an ol or the child of an li child of an ol, and some member of node list
|
||
// is either a ul or the child or ancestor of a ul or the child of an li
|
||
// child of a ul, return "mixed"."
|
||
if (hasOl && hasUl) {
|
||
return "mixed";
|
||
}
|
||
|
||
// "If some member of node list is either an ol or the child or ancestor of
|
||
// an ol or the child of an li child of an ol, return "mixed ol"."
|
||
if (hasOl) {
|
||
return "mixed ol";
|
||
}
|
||
|
||
// "If some member of node list is either a ul or the child or ancestor of
|
||
// a ul or the child of an li child of a ul, return "mixed ul"."
|
||
if (hasUl) {
|
||
return "mixed ul";
|
||
}
|
||
|
||
// "Return "none"."
|
||
return "none";
|
||
}
|
||
|
||
function getAlignmentValue(node) {
|
||
// "While node is neither null nor an Element, or it is an Element but its
|
||
// "display" property has resolved value "inline" or "none", set node to
|
||
// its parent."
|
||
while ((node && node.nodeType != Node.ELEMENT_NODE)
|
||
|| (node.nodeType == Node.ELEMENT_NODE
|
||
&& ["inline", "none"].indexOf(getComputedStyle(node).display) != -1)) {
|
||
node = node.parentNode;
|
||
}
|
||
|
||
// "If node is not an Element, return "left"."
|
||
if (!node || node.nodeType != Node.ELEMENT_NODE) {
|
||
return "left";
|
||
}
|
||
|
||
var resolvedValue = getComputedStyle(node).textAlign
|
||
// Hack around browser non-standardness
|
||
.replace(/^-(moz|webkit)-/, "")
|
||
.replace(/^auto$/, "start");
|
||
|
||
// "If node's "text-align" property has resolved value "start", return
|
||
// "left" if the directionality of node is "ltr", "right" if it is "rtl"."
|
||
if (resolvedValue == "start") {
|
||
return getDirectionality(node) == "ltr" ? "left" : "right";
|
||
}
|
||
|
||
// "If node's "text-align" property has resolved value "end", return
|
||
// "right" if the directionality of node is "ltr", "left" if it is "rtl"."
|
||
if (resolvedValue == "end") {
|
||
return getDirectionality(node) == "ltr" ? "right" : "left";
|
||
}
|
||
|
||
// "If node's "text-align" property has resolved value "center", "justify",
|
||
// "left", or "right", return that value."
|
||
if (["center", "justify", "left", "right"].indexOf(resolvedValue) != -1) {
|
||
return resolvedValue;
|
||
}
|
||
|
||
// "Return "left"."
|
||
return "left";
|
||
}
|
||
|
||
function getNextEquivalentPoint(node, offset) {
|
||
// "If node's length is zero, return null."
|
||
if (getNodeLength(node) == 0) {
|
||
return null;
|
||
}
|
||
|
||
// "If offset is node's length, and node's parent is not null, and node is
|
||
// an inline node, return (node's parent, 1 + node's index)."
|
||
if (offset == getNodeLength(node)
|
||
&& node.parentNode
|
||
&& isInlineNode(node)) {
|
||
return [node.parentNode, 1 + getNodeIndex(node)];
|
||
}
|
||
|
||
// "If node has a child with index offset, and that child's length is not
|
||
// zero, and that child is an inline node, return (that child, 0)."
|
||
if (0 <= offset
|
||
&& offset < node.childNodes.length
|
||
&& getNodeLength(node.childNodes[offset]) != 0
|
||
&& isInlineNode(node.childNodes[offset])) {
|
||
return [node.childNodes[offset], 0];
|
||
}
|
||
|
||
// "Return null."
|
||
return null;
|
||
}
|
||
|
||
function getPreviousEquivalentPoint(node, offset) {
|
||
// "If node's length is zero, return null."
|
||
if (getNodeLength(node) == 0) {
|
||
return null;
|
||
}
|
||
|
||
// "If offset is 0, and node's parent is not null, and node is an inline
|
||
// node, return (node's parent, node's index)."
|
||
if (offset == 0
|
||
&& node.parentNode
|
||
&& isInlineNode(node)) {
|
||
return [node.parentNode, getNodeIndex(node)];
|
||
}
|
||
|
||
// "If node has a child with index offset − 1, and that child's length is
|
||
// not zero, and that child is an inline node, return (that child, that
|
||
// child's length)."
|
||
if (0 <= offset - 1
|
||
&& offset - 1 < node.childNodes.length
|
||
&& getNodeLength(node.childNodes[offset - 1]) != 0
|
||
&& isInlineNode(node.childNodes[offset - 1])) {
|
||
return [node.childNodes[offset - 1], getNodeLength(node.childNodes[offset - 1])];
|
||
}
|
||
|
||
// "Return null."
|
||
return null;
|
||
}
|
||
|
||
function getFirstEquivalentPoint(node, offset) {
|
||
// "While (node, offset)'s previous equivalent point is not null, set
|
||
// (node, offset) to its previous equivalent point."
|
||
var prev;
|
||
while (prev = getPreviousEquivalentPoint(node, offset)) {
|
||
node = prev[0];
|
||
offset = prev[1];
|
||
}
|
||
|
||
// "Return (node, offset)."
|
||
return [node, offset];
|
||
}
|
||
|
||
function getLastEquivalentPoint(node, offset) {
|
||
// "While (node, offset)'s next equivalent point is not null, set (node,
|
||
// offset) to its next equivalent point."
|
||
var next;
|
||
while (next = getNextEquivalentPoint(node, offset)) {
|
||
node = next[0];
|
||
offset = next[1];
|
||
}
|
||
|
||
// "Return (node, offset)."
|
||
return [node, offset];
|
||
}
|
||
|
||
//@}
|
||
///// Block-extending a range /////
|
||
//@{
|
||
|
||
// "A boundary point (node, offset) is a block start point if either node's
|
||
// parent is null and offset is zero; or node has a child with index offset −
|
||
// 1, and that child is either a visible block node or a visible br."
|
||
function isBlockStartPoint(node, offset) {
|
||
return (!node.parentNode && offset == 0)
|
||
|| (0 <= offset - 1
|
||
&& offset - 1 < node.childNodes.length
|
||
&& isVisible(node.childNodes[offset - 1])
|
||
&& (isBlockNode(node.childNodes[offset - 1])
|
||
|| isHtmlElement(node.childNodes[offset - 1], "br")));
|
||
}
|
||
|
||
// "A boundary point (node, offset) is a block end point if either node's
|
||
// parent is null and offset is node's length; or node has a child with index
|
||
// offset, and that child is a visible block node."
|
||
function isBlockEndPoint(node, offset) {
|
||
return (!node.parentNode && offset == getNodeLength(node))
|
||
|| (offset < node.childNodes.length
|
||
&& isVisible(node.childNodes[offset])
|
||
&& isBlockNode(node.childNodes[offset]));
|
||
}
|
||
|
||
// "A boundary point is a block boundary point if it is either a block start
|
||
// point or a block end point."
|
||
function isBlockBoundaryPoint(node, offset) {
|
||
return isBlockStartPoint(node, offset)
|
||
|| isBlockEndPoint(node, offset);
|
||
}
|
||
|
||
function blockExtend(range) {
|
||
// "Let start node, start offset, end node, and end offset be the start
|
||
// and end nodes and offsets of the range."
|
||
var startNode = range.startContainer;
|
||
var startOffset = range.startOffset;
|
||
var endNode = range.endContainer;
|
||
var endOffset = range.endOffset;
|
||
|
||
// "If some ancestor container of start node is an li, set start offset to
|
||
// the index of the last such li in tree order, and set start node to that
|
||
// li's parent."
|
||
var liAncestors = getAncestors(startNode).concat(startNode)
|
||
.filter(function(ancestor) { return isHtmlElement(ancestor, "li") })
|
||
.slice(-1);
|
||
if (liAncestors.length) {
|
||
startOffset = getNodeIndex(liAncestors[0]);
|
||
startNode = liAncestors[0].parentNode;
|
||
}
|
||
|
||
// "If (start node, start offset) is not a block start point, repeat the
|
||
// following steps:"
|
||
if (!isBlockStartPoint(startNode, startOffset)) do {
|
||
// "If start offset is zero, set it to start node's index, then set
|
||
// start node to its parent."
|
||
if (startOffset == 0) {
|
||
startOffset = getNodeIndex(startNode);
|
||
startNode = startNode.parentNode;
|
||
|
||
// "Otherwise, subtract one from start offset."
|
||
} else {
|
||
startOffset--;
|
||
}
|
||
|
||
// "If (start node, start offset) is a block boundary point, break from
|
||
// this loop."
|
||
} while (!isBlockBoundaryPoint(startNode, startOffset));
|
||
|
||
// "While start offset is zero and start node's parent is not null, set
|
||
// start offset to start node's index, then set start node to its parent."
|
||
while (startOffset == 0
|
||
&& startNode.parentNode) {
|
||
startOffset = getNodeIndex(startNode);
|
||
startNode = startNode.parentNode;
|
||
}
|
||
|
||
// "If some ancestor container of end node is an li, set end offset to one
|
||
// plus the index of the last such li in tree order, and set end node to
|
||
// that li's parent."
|
||
var liAncestors = getAncestors(endNode).concat(endNode)
|
||
.filter(function(ancestor) { return isHtmlElement(ancestor, "li") })
|
||
.slice(-1);
|
||
if (liAncestors.length) {
|
||
endOffset = 1 + getNodeIndex(liAncestors[0]);
|
||
endNode = liAncestors[0].parentNode;
|
||
}
|
||
|
||
// "If (end node, end offset) is not a block end point, repeat the
|
||
// following steps:"
|
||
if (!isBlockEndPoint(endNode, endOffset)) do {
|
||
// "If end offset is end node's length, set it to one plus end node's
|
||
// index, then set end node to its parent."
|
||
if (endOffset == getNodeLength(endNode)) {
|
||
endOffset = 1 + getNodeIndex(endNode);
|
||
endNode = endNode.parentNode;
|
||
|
||
// "Otherwise, add one to end offset.
|
||
} else {
|
||
endOffset++;
|
||
}
|
||
|
||
// "If (end node, end offset) is a block boundary point, break from
|
||
// this loop."
|
||
} while (!isBlockBoundaryPoint(endNode, endOffset));
|
||
|
||
// "While end offset is end node's length and end node's parent is not
|
||
// null, set end offset to one plus end node's index, then set end node to
|
||
// its parent."
|
||
while (endOffset == getNodeLength(endNode)
|
||
&& endNode.parentNode) {
|
||
endOffset = 1 + getNodeIndex(endNode);
|
||
endNode = endNode.parentNode;
|
||
}
|
||
|
||
// "Let new range be a new range whose start and end nodes and offsets
|
||
// are start node, start offset, end node, and end offset."
|
||
var newRange = startNode.ownerDocument.createRange();
|
||
newRange.setStart(startNode, startOffset);
|
||
newRange.setEnd(endNode, endOffset);
|
||
|
||
// "Return new range."
|
||
return newRange;
|
||
}
|
||
|
||
function followsLineBreak(node) {
|
||
// "Let offset be zero."
|
||
var offset = 0;
|
||
|
||
// "While (node, offset) is not a block boundary point:"
|
||
while (!isBlockBoundaryPoint(node, offset)) {
|
||
// "If node has a visible child with index offset minus one, return
|
||
// false."
|
||
if (0 <= offset - 1
|
||
&& offset - 1 < node.childNodes.length
|
||
&& isVisible(node.childNodes[offset - 1])) {
|
||
return false;
|
||
}
|
||
|
||
// "If offset is zero or node has no children, set offset to node's
|
||
// index, then set node to its parent."
|
||
if (offset == 0
|
||
|| !node.hasChildNodes()) {
|
||
offset = getNodeIndex(node);
|
||
node = node.parentNode;
|
||
|
||
// "Otherwise, set node to its child with index offset minus one, then
|
||
// set offset to node's length."
|
||
} else {
|
||
node = node.childNodes[offset - 1];
|
||
offset = getNodeLength(node);
|
||
}
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
function precedesLineBreak(node) {
|
||
// "Let offset be node's length."
|
||
var offset = getNodeLength(node);
|
||
|
||
// "While (node, offset) is not a block boundary point:"
|
||
while (!isBlockBoundaryPoint(node, offset)) {
|
||
// "If node has a visible child with index offset, return false."
|
||
if (offset < node.childNodes.length
|
||
&& isVisible(node.childNodes[offset])) {
|
||
return false;
|
||
}
|
||
|
||
// "If offset is node's length or node has no children, set offset to
|
||
// one plus node's index, then set node to its parent."
|
||
if (offset == getNodeLength(node)
|
||
|| !node.hasChildNodes()) {
|
||
offset = 1 + getNodeIndex(node);
|
||
node = node.parentNode;
|
||
|
||
// "Otherwise, set node to its child with index offset and set offset
|
||
// to zero."
|
||
} else {
|
||
node = node.childNodes[offset];
|
||
offset = 0;
|
||
}
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
//@}
|
||
///// Recording and restoring overrides /////
|
||
//@{
|
||
|
||
function recordCurrentOverrides() {
|
||
// "Let overrides be a list of (string, string or boolean) ordered pairs,
|
||
// initially empty."
|
||
var overrides = [];
|
||
|
||
// "If there is a value override for "createLink", add ("createLink", value
|
||
// override for "createLink") to overrides."
|
||
if (getValueOverride("createlink") !== undefined) {
|
||
overrides.push(["createlink", getValueOverride("createlink")]);
|
||
}
|
||
|
||
// "For each command in the list "bold", "italic", "strikethrough",
|
||
// "subscript", "superscript", "underline", in order: if there is a state
|
||
// override for command, add (command, command's state override) to
|
||
// overrides."
|
||
["bold", "italic", "strikethrough", "subscript", "superscript",
|
||
"underline"].forEach(function(command) {
|
||
if (getStateOverride(command) !== undefined) {
|
||
overrides.push([command, getStateOverride(command)]);
|
||
}
|
||
});
|
||
|
||
// "For each command in the list "fontName", "fontSize", "foreColor",
|
||
// "hiliteColor", in order: if there is a value override for command, add
|
||
// (command, command's value override) to overrides."
|
||
["fontname", "fontsize", "forecolor",
|
||
"hilitecolor"].forEach(function(command) {
|
||
if (getValueOverride(command) !== undefined) {
|
||
overrides.push([command, getValueOverride(command)]);
|
||
}
|
||
});
|
||
|
||
// "Return overrides."
|
||
return overrides;
|
||
}
|
||
|
||
function recordCurrentStatesAndValues() {
|
||
// "Let overrides be a list of (string, string or boolean) ordered pairs,
|
||
// initially empty."
|
||
var overrides = [];
|
||
|
||
// "Let node be the first formattable node effectively contained in the
|
||
// active range, or null if there is none."
|
||
var node = getAllEffectivelyContainedNodes(getActiveRange())
|
||
.filter(isFormattableNode)[0];
|
||
|
||
// "If node is null, return overrides."
|
||
if (!node) {
|
||
return overrides;
|
||
}
|
||
|
||
// "Add ("createLink", node's effective command value for "createLink") to
|
||
// overrides."
|
||
overrides.push(["createlink", getEffectiveCommandValue(node, "createlink")]);
|
||
|
||
// "For each command in the list "bold", "italic", "strikethrough",
|
||
// "subscript", "superscript", "underline", in order: if node's effective
|
||
// command value for command is one of its inline command activated values,
|
||
// add (command, true) to overrides, and otherwise add (command, false) to
|
||
// overrides."
|
||
["bold", "italic", "strikethrough", "subscript", "superscript",
|
||
"underline"].forEach(function(command) {
|
||
if (commands[command].inlineCommandActivatedValues
|
||
.indexOf(getEffectiveCommandValue(node, command)) != -1) {
|
||
overrides.push([command, true]);
|
||
} else {
|
||
overrides.push([command, false]);
|
||
}
|
||
});
|
||
|
||
// "For each command in the list "fontName", "foreColor", "hiliteColor", in
|
||
// order: add (command, command's value) to overrides."
|
||
["fontname", "fontsize", "forecolor", "hilitecolor"].forEach(function(command) {
|
||
overrides.push([command, commands[command].value()]);
|
||
});
|
||
|
||
// "Add ("fontSize", node's effective command value for "fontSize") to
|
||
// overrides."
|
||
overrides.push(["fontsize", getEffectiveCommandValue(node, "fontsize")]);
|
||
|
||
// "Return overrides."
|
||
return overrides;
|
||
}
|
||
|
||
function restoreStatesAndValues(overrides) {
|
||
// "Let node be the first formattable node effectively contained in the
|
||
// active range, or null if there is none."
|
||
var node = getAllEffectivelyContainedNodes(getActiveRange())
|
||
.filter(isFormattableNode)[0];
|
||
|
||
// "If node is not null, then for each (command, override) pair in
|
||
// overrides, in order:"
|
||
if (node) {
|
||
for (var i = 0; i < overrides.length; i++) {
|
||
var command = overrides[i][0];
|
||
var override = overrides[i][1];
|
||
|
||
// "If override is a boolean, and queryCommandState(command)
|
||
// returns something different from override, take the action for
|
||
// command, with value equal to the empty string."
|
||
if (typeof override == "boolean"
|
||
&& myQueryCommandState(command) != override) {
|
||
commands[command].action("");
|
||
|
||
// "Otherwise, if override is a string, and command is neither
|
||
// "createLink" nor "fontSize", and queryCommandValue(command)
|
||
// returns something not equivalent to override, take the action
|
||
// for command, with value equal to override."
|
||
} else if (typeof override == "string"
|
||
&& command != "createlink"
|
||
&& command != "fontsize"
|
||
&& !areEquivalentValues(command, myQueryCommandValue(command), override)) {
|
||
commands[command].action(override);
|
||
|
||
// "Otherwise, if override is a string; and command is
|
||
// "createLink"; and either there is a value override for
|
||
// "createLink" that is not equal to override, or there is no value
|
||
// override for "createLink" and node's effective command value for
|
||
// "createLink" is not equal to override: take the action for
|
||
// "createLink", with value equal to override."
|
||
} else if (typeof override == "string"
|
||
&& command == "createlink"
|
||
&& (
|
||
(
|
||
getValueOverride("createlink") !== undefined
|
||
&& getValueOverride("createlink") !== override
|
||
) || (
|
||
getValueOverride("createlink") === undefined
|
||
&& getEffectiveCommandValue(node, "createlink") !== override
|
||
)
|
||
)) {
|
||
commands.createlink.action(override);
|
||
|
||
// "Otherwise, if override is a string; and command is "fontSize";
|
||
// and either there is a value override for "fontSize" that is not
|
||
// equal to override, or there is no value override for "fontSize"
|
||
// and node's effective command value for "fontSize" is not loosely
|
||
// equivalent to override:"
|
||
} else if (typeof override == "string"
|
||
&& command == "fontsize"
|
||
&& (
|
||
(
|
||
getValueOverride("fontsize") !== undefined
|
||
&& getValueOverride("fontsize") !== override
|
||
) || (
|
||
getValueOverride("fontsize") === undefined
|
||
&& !areLooselyEquivalentValues(command, getEffectiveCommandValue(node, "fontsize"), override)
|
||
)
|
||
)) {
|
||
// "Convert override to an integer number of pixels, and set
|
||
// override to the legacy font size for the result."
|
||
override = getLegacyFontSize(override);
|
||
|
||
// "Take the action for "fontSize", with value equal to
|
||
// override."
|
||
commands.fontsize.action(override);
|
||
|
||
// "Otherwise, continue this loop from the beginning."
|
||
} else {
|
||
continue;
|
||
}
|
||
|
||
// "Set node to the first formattable node effectively contained in
|
||
// the active range, if there is one."
|
||
node = getAllEffectivelyContainedNodes(getActiveRange())
|
||
.filter(isFormattableNode)[0]
|
||
|| node;
|
||
}
|
||
|
||
// "Otherwise, for each (command, override) pair in overrides, in order:"
|
||
} else {
|
||
for (var i = 0; i < overrides.length; i++) {
|
||
var command = overrides[i][0];
|
||
var override = overrides[i][1];
|
||
|
||
// "If override is a boolean, set the state override for command to
|
||
// override."
|
||
if (typeof override == "boolean") {
|
||
setStateOverride(command, override);
|
||
}
|
||
|
||
// "If override is a string, set the value override for command to
|
||
// override."
|
||
if (typeof override == "string") {
|
||
setValueOverride(command, override);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
//@}
|
||
///// Deleting the selection /////
|
||
//@{
|
||
|
||
// The flags argument is a dictionary that can have blockMerging,
|
||
// stripWrappers, and/or direction as keys.
|
||
function deleteSelection(flags) {
|
||
if (flags === undefined) {
|
||
flags = {};
|
||
}
|
||
|
||
var blockMerging = "blockMerging" in flags ? Boolean(flags.blockMerging) : true;
|
||
var stripWrappers = "stripWrappers" in flags ? Boolean(flags.stripWrappers) : true;
|
||
var direction = "direction" in flags ? flags.direction : "forward";
|
||
|
||
// "If the active range is null, abort these steps and do nothing."
|
||
if (!getActiveRange()) {
|
||
return;
|
||
}
|
||
|
||
// "Canonicalize whitespace at the active range's start."
|
||
canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset);
|
||
|
||
// "Canonicalize whitespace at the active range's end."
|
||
canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset);
|
||
|
||
// "Let (start node, start offset) be the last equivalent point for the
|
||
// active range's start."
|
||
var start = getLastEquivalentPoint(getActiveRange().startContainer, getActiveRange().startOffset);
|
||
var startNode = start[0];
|
||
var startOffset = start[1];
|
||
|
||
// "Let (end node, end offset) be the first equivalent point for the active
|
||
// range's end."
|
||
var end = getFirstEquivalentPoint(getActiveRange().endContainer, getActiveRange().endOffset);
|
||
var endNode = end[0];
|
||
var endOffset = end[1];
|
||
|
||
// "If (end node, end offset) is not after (start node, start offset):"
|
||
if (getPosition(endNode, endOffset, startNode, startOffset) !== "after") {
|
||
// "If direction is "forward", call collapseToStart() on the context
|
||
// object's Selection."
|
||
//
|
||
// Here and in a few other places, we check rangeCount to work around a
|
||
// WebKit bug: it will sometimes incorrectly remove ranges from the
|
||
// selection if nodes are removed, so collapseToStart() will throw.
|
||
// This will break everything if we're using an actual selection, but
|
||
// if getActiveRange() is really just returning globalRange and that's
|
||
// all we care about, it will work fine. I only add the extra check
|
||
// for errors I actually hit in testing.
|
||
if (direction == "forward") {
|
||
if (getSelection().rangeCount) {
|
||
getSelection().collapseToStart();
|
||
}
|
||
getActiveRange().collapse(true);
|
||
|
||
// "Otherwise, call collapseToEnd() on the context object's Selection."
|
||
} else {
|
||
getSelection().collapseToEnd();
|
||
getActiveRange().collapse(false);
|
||
}
|
||
|
||
// "Abort these steps."
|
||
return;
|
||
}
|
||
|
||
// "If start node is a Text node and start offset is 0, set start offset to
|
||
// the index of start node, then set start node to its parent."
|
||
if (startNode.nodeType == Node.TEXT_NODE
|
||
&& startOffset == 0) {
|
||
startOffset = getNodeIndex(startNode);
|
||
startNode = startNode.parentNode;
|
||
}
|
||
|
||
// "If end node is a Text node and end offset is its length, set end offset
|
||
// to one plus the index of end node, then set end node to its parent."
|
||
if (endNode.nodeType == Node.TEXT_NODE
|
||
&& endOffset == getNodeLength(endNode)) {
|
||
endOffset = 1 + getNodeIndex(endNode);
|
||
endNode = endNode.parentNode;
|
||
}
|
||
|
||
// "Call collapse(start node, start offset) on the context object's
|
||
// Selection."
|
||
getSelection().collapse(startNode, startOffset);
|
||
getActiveRange().setStart(startNode, startOffset);
|
||
|
||
// "Call extend(end node, end offset) on the context object's Selection."
|
||
getSelection().extend(endNode, endOffset);
|
||
getActiveRange().setEnd(endNode, endOffset);
|
||
|
||
// "Let start block be the active range's start node."
|
||
var startBlock = getActiveRange().startContainer;
|
||
|
||
// "While start block's parent is in the same editing host and start block
|
||
// is an inline node, set start block to its parent."
|
||
while (inSameEditingHost(startBlock, startBlock.parentNode)
|
||
&& isInlineNode(startBlock)) {
|
||
startBlock = startBlock.parentNode;
|
||
}
|
||
|
||
// "If start block is neither a block node nor an editing host, or "span"
|
||
// is not an allowed child of start block, or start block is a td or th,
|
||
// set start block to null."
|
||
if ((!isBlockNode(startBlock) && !isEditingHost(startBlock))
|
||
|| !isAllowedChild("span", startBlock)
|
||
|| isHtmlElement(startBlock, ["td", "th"])) {
|
||
startBlock = null;
|
||
}
|
||
|
||
// "Let end block be the active range's end node."
|
||
var endBlock = getActiveRange().endContainer;
|
||
|
||
// "While end block's parent is in the same editing host and end block is
|
||
// an inline node, set end block to its parent."
|
||
while (inSameEditingHost(endBlock, endBlock.parentNode)
|
||
&& isInlineNode(endBlock)) {
|
||
endBlock = endBlock.parentNode;
|
||
}
|
||
|
||
// "If end block is neither a block node nor an editing host, or "span" is
|
||
// not an allowed child of end block, or end block is a td or th, set end
|
||
// block to null."
|
||
if ((!isBlockNode(endBlock) && !isEditingHost(endBlock))
|
||
|| !isAllowedChild("span", endBlock)
|
||
|| isHtmlElement(endBlock, ["td", "th"])) {
|
||
endBlock = null;
|
||
}
|
||
|
||
// "Record current states and values, and let overrides be the result."
|
||
var overrides = recordCurrentStatesAndValues();
|
||
|
||
// "If start node and end node are the same, and start node is an editable
|
||
// Text node:"
|
||
if (startNode == endNode
|
||
&& isEditable(startNode)
|
||
&& startNode.nodeType == Node.TEXT_NODE) {
|
||
// "Call deleteData(start offset, end offset − start offset) on start
|
||
// node."
|
||
startNode.deleteData(startOffset, endOffset - startOffset);
|
||
|
||
// "Canonicalize whitespace at (start node, start offset), with fix
|
||
// collapsed space false."
|
||
canonicalizeWhitespace(startNode, startOffset, false);
|
||
|
||
// "If direction is "forward", call collapseToStart() on the context
|
||
// object's Selection."
|
||
if (direction == "forward") {
|
||
if (getSelection().rangeCount) {
|
||
getSelection().collapseToStart();
|
||
}
|
||
getActiveRange().collapse(true);
|
||
|
||
// "Otherwise, call collapseToEnd() on the context object's Selection."
|
||
} else {
|
||
getSelection().collapseToEnd();
|
||
getActiveRange().collapse(false);
|
||
}
|
||
|
||
// "Restore states and values from overrides."
|
||
restoreStatesAndValues(overrides);
|
||
|
||
// "Abort these steps."
|
||
return;
|
||
}
|
||
|
||
// "If start node is an editable Text node, call deleteData() on it, with
|
||
// start offset as the first argument and (length of start node − start
|
||
// offset) as the second argument."
|
||
if (isEditable(startNode)
|
||
&& startNode.nodeType == Node.TEXT_NODE) {
|
||
startNode.deleteData(startOffset, getNodeLength(startNode) - startOffset);
|
||
}
|
||
|
||
// "Let node list be a list of nodes, initially empty."
|
||
//
|
||
// "For each node contained in the active range, append node to node list
|
||
// if the last member of node list (if any) is not an ancestor of node;
|
||
// node is editable; and node is not a thead, tbody, tfoot, tr, th, or td."
|
||
var nodeList = getContainedNodes(getActiveRange(),
|
||
function(node) {
|
||
return isEditable(node)
|
||
&& !isHtmlElement(node, ["thead", "tbody", "tfoot", "tr", "th", "td"]);
|
||
}
|
||
);
|
||
|
||
// "For each node in node list:"
|
||
for (var i = 0; i < nodeList.length; i++) {
|
||
var node = nodeList[i];
|
||
|
||
// "Let parent be the parent of node."
|
||
var parent_ = node.parentNode;
|
||
|
||
// "Remove node from parent."
|
||
parent_.removeChild(node);
|
||
|
||
// "If the block node of parent has no visible children, and parent is
|
||
// editable or an editing host, call createElement("br") on the context
|
||
// object and append the result as the last child of parent."
|
||
if (![].some.call(getBlockNodeOf(parent_).childNodes, isVisible)
|
||
&& (isEditable(parent_) || isEditingHost(parent_))) {
|
||
parent_.appendChild(document.createElement("br"));
|
||
}
|
||
|
||
// "If strip wrappers is true or parent is not an ancestor container of
|
||
// start node, while parent is an editable inline node with length 0,
|
||
// let grandparent be the parent of parent, then remove parent from
|
||
// grandparent, then set parent to grandparent."
|
||
if (stripWrappers
|
||
|| (!isAncestor(parent_, startNode) && parent_ != startNode)) {
|
||
while (isEditable(parent_)
|
||
&& isInlineNode(parent_)
|
||
&& getNodeLength(parent_) == 0) {
|
||
var grandparent = parent_.parentNode;
|
||
grandparent.removeChild(parent_);
|
||
parent_ = grandparent;
|
||
}
|
||
}
|
||
}
|
||
|
||
// "If end node is an editable Text node, call deleteData(0, end offset) on
|
||
// it."
|
||
if (isEditable(endNode)
|
||
&& endNode.nodeType == Node.TEXT_NODE) {
|
||
endNode.deleteData(0, endOffset);
|
||
}
|
||
|
||
// "Canonicalize whitespace at the active range's start, with fix collapsed
|
||
// space false."
|
||
canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset, false);
|
||
|
||
// "Canonicalize whitespace at the active range's end, with fix collapsed
|
||
// space false."
|
||
canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset, false);
|
||
|
||
// "If block merging is false, or start block or end block is null, or
|
||
// start block is not in the same editing host as end block, or start block
|
||
// and end block are the same:"
|
||
if (!blockMerging
|
||
|| !startBlock
|
||
|| !endBlock
|
||
|| !inSameEditingHost(startBlock, endBlock)
|
||
|| startBlock == endBlock) {
|
||
// "If direction is "forward", call collapseToStart() on the context
|
||
// object's Selection."
|
||
if (direction == "forward") {
|
||
if (getSelection().rangeCount) {
|
||
getSelection().collapseToStart();
|
||
}
|
||
getActiveRange().collapse(true);
|
||
|
||
// "Otherwise, call collapseToEnd() on the context object's Selection."
|
||
} else {
|
||
if (getSelection().rangeCount) {
|
||
getSelection().collapseToEnd();
|
||
}
|
||
getActiveRange().collapse(false);
|
||
}
|
||
|
||
// "Restore states and values from overrides."
|
||
restoreStatesAndValues(overrides);
|
||
|
||
// "Abort these steps."
|
||
return;
|
||
}
|
||
|
||
// "If start block has one child, which is a collapsed block prop, remove
|
||
// its child from it."
|
||
if (startBlock.children.length == 1
|
||
&& isCollapsedBlockProp(startBlock.firstChild)) {
|
||
startBlock.removeChild(startBlock.firstChild);
|
||
}
|
||
|
||
// "If start block is an ancestor of end block:"
|
||
if (isAncestor(startBlock, endBlock)) {
|
||
// "Let reference node be end block."
|
||
var referenceNode = endBlock;
|
||
|
||
// "While reference node is not a child of start block, set reference
|
||
// node to its parent."
|
||
while (referenceNode.parentNode != startBlock) {
|
||
referenceNode = referenceNode.parentNode;
|
||
}
|
||
|
||
// "Call collapse() on the context object's Selection, with first
|
||
// argument start block and second argument the index of reference
|
||
// node."
|
||
getSelection().collapse(startBlock, getNodeIndex(referenceNode));
|
||
getActiveRange().setStart(startBlock, getNodeIndex(referenceNode));
|
||
getActiveRange().collapse(true);
|
||
|
||
// "If end block has no children:"
|
||
if (!endBlock.hasChildNodes()) {
|
||
// "While end block is editable and is the only child of its parent
|
||
// and is not a child of start block, let parent equal end block,
|
||
// then remove end block from parent, then set end block to
|
||
// parent."
|
||
while (isEditable(endBlock)
|
||
&& endBlock.parentNode.childNodes.length == 1
|
||
&& endBlock.parentNode != startBlock) {
|
||
var parent_ = endBlock;
|
||
parent_.removeChild(endBlock);
|
||
endBlock = parent_;
|
||
}
|
||
|
||
// "If end block is editable and is not an inline node, and its
|
||
// previousSibling and nextSibling are both inline nodes, call
|
||
// createElement("br") on the context object and insert it into end
|
||
// block's parent immediately after end block."
|
||
if (isEditable(endBlock)
|
||
&& !isInlineNode(endBlock)
|
||
&& isInlineNode(endBlock.previousSibling)
|
||
&& isInlineNode(endBlock.nextSibling)) {
|
||
endBlock.parentNode.insertBefore(document.createElement("br"), endBlock.nextSibling);
|
||
}
|
||
|
||
// "If end block is editable, remove it from its parent."
|
||
if (isEditable(endBlock)) {
|
||
endBlock.parentNode.removeChild(endBlock);
|
||
}
|
||
|
||
// "Restore states and values from overrides."
|
||
restoreStatesAndValues(overrides);
|
||
|
||
// "Abort these steps."
|
||
return;
|
||
}
|
||
|
||
// "If end block's firstChild is not an inline node, restore states and
|
||
// values from overrides, then abort these steps."
|
||
if (!isInlineNode(endBlock.firstChild)) {
|
||
restoreStatesAndValues(overrides);
|
||
return;
|
||
}
|
||
|
||
// "Let children be a list of nodes, initially empty."
|
||
var children = [];
|
||
|
||
// "Append the first child of end block to children."
|
||
children.push(endBlock.firstChild);
|
||
|
||
// "While children's last member is not a br, and children's last
|
||
// member's nextSibling is an inline node, append children's last
|
||
// member's nextSibling to children."
|
||
while (!isHtmlElement(children[children.length - 1], "br")
|
||
&& isInlineNode(children[children.length - 1].nextSibling)) {
|
||
children.push(children[children.length - 1].nextSibling);
|
||
}
|
||
|
||
// "Record the values of children, and let values be the result."
|
||
var values = recordValues(children);
|
||
|
||
// "While children's first member's parent is not start block, split
|
||
// the parent of children."
|
||
while (children[0].parentNode != startBlock) {
|
||
splitParent(children);
|
||
}
|
||
|
||
// "If children's first member's previousSibling is an editable br,
|
||
// remove that br from its parent."
|
||
if (isEditable(children[0].previousSibling)
|
||
&& isHtmlElement(children[0].previousSibling, "br")) {
|
||
children[0].parentNode.removeChild(children[0].previousSibling);
|
||
}
|
||
|
||
// "Otherwise, if start block is a descendant of end block:"
|
||
} else if (isDescendant(startBlock, endBlock)) {
|
||
// "Call collapse() on the context object's Selection, with first
|
||
// argument start block and second argument start block's length."
|
||
getSelection().collapse(startBlock, getNodeLength(startBlock));
|
||
getActiveRange().setStart(startBlock, getNodeLength(startBlock));
|
||
getActiveRange().collapse(true);
|
||
|
||
// "Let reference node be start block."
|
||
var referenceNode = startBlock;
|
||
|
||
// "While reference node is not a child of end block, set reference
|
||
// node to its parent."
|
||
while (referenceNode.parentNode != endBlock) {
|
||
referenceNode = referenceNode.parentNode;
|
||
}
|
||
|
||
// "If reference node's nextSibling is an inline node and start block's
|
||
// lastChild is a br, remove start block's lastChild from it."
|
||
if (isInlineNode(referenceNode.nextSibling)
|
||
&& isHtmlElement(startBlock.lastChild, "br")) {
|
||
startBlock.removeChild(startBlock.lastChild);
|
||
}
|
||
|
||
// "Let nodes to move be a list of nodes, initially empty."
|
||
var nodesToMove = [];
|
||
|
||
// "If reference node's nextSibling is neither null nor a block node,
|
||
// append it to nodes to move."
|
||
if (referenceNode.nextSibling
|
||
&& !isBlockNode(referenceNode.nextSibling)) {
|
||
nodesToMove.push(referenceNode.nextSibling);
|
||
}
|
||
|
||
// "While nodes to move is nonempty and its last member isn't a br and
|
||
// its last member's nextSibling is neither null nor a block node,
|
||
// append its last member's nextSibling to nodes to move."
|
||
if (nodesToMove.length
|
||
&& !isHtmlElement(nodesToMove[nodesToMove.length - 1], "br")
|
||
&& nodesToMove[nodesToMove.length - 1].nextSibling
|
||
&& !isBlockNode(nodesToMove[nodesToMove.length - 1].nextSibling)) {
|
||
nodesToMove.push(nodesToMove[nodesToMove.length - 1].nextSibling);
|
||
}
|
||
|
||
// "Record the values of nodes to move, and let values be the result."
|
||
var values = recordValues(nodesToMove);
|
||
|
||
// "For each node in nodes to move, append node as the last child of
|
||
// start block, preserving ranges."
|
||
nodesToMove.forEach(function(node) {
|
||
movePreservingRanges(node, startBlock, -1);
|
||
});
|
||
|
||
// "Otherwise:"
|
||
} else {
|
||
// "Call collapse() on the context object's Selection, with first
|
||
// argument start block and second argument start block's length."
|
||
getSelection().collapse(startBlock, getNodeLength(startBlock));
|
||
getActiveRange().setStart(startBlock, getNodeLength(startBlock));
|
||
getActiveRange().collapse(true);
|
||
|
||
// "If end block's firstChild is an inline node and start block's
|
||
// lastChild is a br, remove start block's lastChild from it."
|
||
if (isInlineNode(endBlock.firstChild)
|
||
&& isHtmlElement(startBlock.lastChild, "br")) {
|
||
startBlock.removeChild(startBlock.lastChild);
|
||
}
|
||
|
||
// "Record the values of end block's children, and let values be the
|
||
// result."
|
||
var values = recordValues([].slice.call(endBlock.childNodes));
|
||
|
||
// "While end block has children, append the first child of end block
|
||
// to start block, preserving ranges."
|
||
while (endBlock.hasChildNodes()) {
|
||
movePreservingRanges(endBlock.firstChild, startBlock, -1);
|
||
}
|
||
|
||
// "While end block has no children, let parent be the parent of end
|
||
// block, then remove end block from parent, then set end block to
|
||
// parent."
|
||
while (!endBlock.hasChildNodes()) {
|
||
var parent_ = endBlock.parentNode;
|
||
parent_.removeChild(endBlock);
|
||
endBlock = parent_;
|
||
}
|
||
}
|
||
|
||
// "Let ancestor be start block."
|
||
var ancestor = startBlock;
|
||
|
||
// "While ancestor has an inclusive ancestor ol in the same editing host
|
||
// whose nextSibling is also an ol in the same editing host, or an
|
||
// inclusive ancestor ul in the same editing host whose nextSibling is also
|
||
// a ul in the same editing host:"
|
||
while (getInclusiveAncestors(ancestor).some(function(node) {
|
||
return inSameEditingHost(ancestor, node)
|
||
&& (
|
||
(isHtmlElement(node, "ol") && isHtmlElement(node.nextSibling, "ol"))
|
||
|| (isHtmlElement(node, "ul") && isHtmlElement(node.nextSibling, "ul"))
|
||
) && inSameEditingHost(ancestor, node.nextSibling);
|
||
})) {
|
||
// "While ancestor and its nextSibling are not both ols in the same
|
||
// editing host, and are also not both uls in the same editing host,
|
||
// set ancestor to its parent."
|
||
while (!(
|
||
isHtmlElement(ancestor, "ol")
|
||
&& isHtmlElement(ancestor.nextSibling, "ol")
|
||
&& inSameEditingHost(ancestor, ancestor.nextSibling)
|
||
) && !(
|
||
isHtmlElement(ancestor, "ul")
|
||
&& isHtmlElement(ancestor.nextSibling, "ul")
|
||
&& inSameEditingHost(ancestor, ancestor.nextSibling)
|
||
)) {
|
||
ancestor = ancestor.parentNode;
|
||
}
|
||
|
||
// "While ancestor's nextSibling has children, append ancestor's
|
||
// nextSibling's firstChild as the last child of ancestor, preserving
|
||
// ranges."
|
||
while (ancestor.nextSibling.hasChildNodes()) {
|
||
movePreservingRanges(ancestor.nextSibling.firstChild, ancestor, -1);
|
||
}
|
||
|
||
// "Remove ancestor's nextSibling from its parent."
|
||
ancestor.parentNode.removeChild(ancestor.nextSibling);
|
||
}
|
||
|
||
// "Restore the values from values."
|
||
restoreValues(values);
|
||
|
||
// "If start block has no children, call createElement("br") on the context
|
||
// object and append the result as the last child of start block."
|
||
if (!startBlock.hasChildNodes()) {
|
||
startBlock.appendChild(document.createElement("br"));
|
||
}
|
||
|
||
// "Remove extraneous line breaks at the end of start block."
|
||
removeExtraneousLineBreaksAtTheEndOf(startBlock);
|
||
|
||
// "Restore states and values from overrides."
|
||
restoreStatesAndValues(overrides);
|
||
}
|
||
|
||
|
||
//@}
|
||
///// Splitting a node list's parent /////
|
||
//@{
|
||
|
||
function splitParent(nodeList) {
|
||
// "Let original parent be the parent of the first member of node list."
|
||
var originalParent = nodeList[0].parentNode;
|
||
|
||
// "If original parent is not editable or its parent is null, do nothing
|
||
// and abort these steps."
|
||
if (!isEditable(originalParent)
|
||
|| !originalParent.parentNode) {
|
||
return;
|
||
}
|
||
|
||
// "If the first child of original parent is in node list, remove
|
||
// extraneous line breaks before original parent."
|
||
if (nodeList.indexOf(originalParent.firstChild) != -1) {
|
||
removeExtraneousLineBreaksBefore(originalParent);
|
||
}
|
||
|
||
// "If the first child of original parent is in node list, and original
|
||
// parent follows a line break, set follows line break to true. Otherwise,
|
||
// set follows line break to false."
|
||
var followsLineBreak_ = nodeList.indexOf(originalParent.firstChild) != -1
|
||
&& followsLineBreak(originalParent);
|
||
|
||
// "If the last child of original parent is in node list, and original
|
||
// parent precedes a line break, set precedes line break to true.
|
||
// Otherwise, set precedes line break to false."
|
||
var precedesLineBreak_ = nodeList.indexOf(originalParent.lastChild) != -1
|
||
&& precedesLineBreak(originalParent);
|
||
|
||
// "If the first child of original parent is not in node list, but its last
|
||
// child is:"
|
||
if (nodeList.indexOf(originalParent.firstChild) == -1
|
||
&& nodeList.indexOf(originalParent.lastChild) != -1) {
|
||
// "For each node in node list, in reverse order, insert node into the
|
||
// parent of original parent immediately after original parent,
|
||
// preserving ranges."
|
||
for (var i = nodeList.length - 1; i >= 0; i--) {
|
||
movePreservingRanges(nodeList[i], originalParent.parentNode, 1 + getNodeIndex(originalParent));
|
||
}
|
||
|
||
// "If precedes line break is true, and the last member of node list
|
||
// does not precede a line break, call createElement("br") on the
|
||
// context object and insert the result immediately after the last
|
||
// member of node list."
|
||
if (precedesLineBreak_
|
||
&& !precedesLineBreak(nodeList[nodeList.length - 1])) {
|
||
nodeList[nodeList.length - 1].parentNode.insertBefore(document.createElement("br"), nodeList[nodeList.length - 1].nextSibling);
|
||
}
|
||
|
||
// "Remove extraneous line breaks at the end of original parent."
|
||
removeExtraneousLineBreaksAtTheEndOf(originalParent);
|
||
|
||
// "Abort these steps."
|
||
return;
|
||
}
|
||
|
||
// "If the first child of original parent is not in node list:"
|
||
if (nodeList.indexOf(originalParent.firstChild) == -1) {
|
||
// "Let cloned parent be the result of calling cloneNode(false) on
|
||
// original parent."
|
||
var clonedParent = originalParent.cloneNode(false);
|
||
|
||
// "If original parent has an id attribute, unset it."
|
||
originalParent.removeAttribute("id");
|
||
|
||
// "Insert cloned parent into the parent of original parent immediately
|
||
// before original parent."
|
||
originalParent.parentNode.insertBefore(clonedParent, originalParent);
|
||
|
||
// "While the previousSibling of the first member of node list is not
|
||
// null, append the first child of original parent as the last child of
|
||
// cloned parent, preserving ranges."
|
||
while (nodeList[0].previousSibling) {
|
||
movePreservingRanges(originalParent.firstChild, clonedParent, clonedParent.childNodes.length);
|
||
}
|
||
}
|
||
|
||
// "For each node in node list, insert node into the parent of original
|
||
// parent immediately before original parent, preserving ranges."
|
||
for (var i = 0; i < nodeList.length; i++) {
|
||
movePreservingRanges(nodeList[i], originalParent.parentNode, getNodeIndex(originalParent));
|
||
}
|
||
|
||
// "If follows line break is true, and the first member of node list does
|
||
// not follow a line break, call createElement("br") on the context object
|
||
// and insert the result immediately before the first member of node list."
|
||
if (followsLineBreak_
|
||
&& !followsLineBreak(nodeList[0])) {
|
||
nodeList[0].parentNode.insertBefore(document.createElement("br"), nodeList[0]);
|
||
}
|
||
|
||
// "If the last member of node list is an inline node other than a br, and
|
||
// the first child of original parent is a br, and original parent is not
|
||
// an inline node, remove the first child of original parent from original
|
||
// parent."
|
||
if (isInlineNode(nodeList[nodeList.length - 1])
|
||
&& !isHtmlElement(nodeList[nodeList.length - 1], "br")
|
||
&& isHtmlElement(originalParent.firstChild, "br")
|
||
&& !isInlineNode(originalParent)) {
|
||
originalParent.removeChild(originalParent.firstChild);
|
||
}
|
||
|
||
// "If original parent has no children:"
|
||
if (!originalParent.hasChildNodes()) {
|
||
// "Remove original parent from its parent."
|
||
originalParent.parentNode.removeChild(originalParent);
|
||
|
||
// "If precedes line break is true, and the last member of node list
|
||
// does not precede a line break, call createElement("br") on the
|
||
// context object and insert the result immediately after the last
|
||
// member of node list."
|
||
if (precedesLineBreak_
|
||
&& !precedesLineBreak(nodeList[nodeList.length - 1])) {
|
||
nodeList[nodeList.length - 1].parentNode.insertBefore(document.createElement("br"), nodeList[nodeList.length - 1].nextSibling);
|
||
}
|
||
|
||
// "Otherwise, remove extraneous line breaks before original parent."
|
||
} else {
|
||
removeExtraneousLineBreaksBefore(originalParent);
|
||
}
|
||
|
||
// "If node list's last member's nextSibling is null, but its parent is not
|
||
// null, remove extraneous line breaks at the end of node list's last
|
||
// member's parent."
|
||
if (!nodeList[nodeList.length - 1].nextSibling
|
||
&& nodeList[nodeList.length - 1].parentNode) {
|
||
removeExtraneousLineBreaksAtTheEndOf(nodeList[nodeList.length - 1].parentNode);
|
||
}
|
||
}
|
||
|
||
// "To remove a node node while preserving its descendants, split the parent of
|
||
// node's children if it has any. If it has no children, instead remove it from
|
||
// its parent."
|
||
function removePreservingDescendants(node) {
|
||
if (node.hasChildNodes()) {
|
||
splitParent([].slice.call(node.childNodes));
|
||
} else {
|
||
node.parentNode.removeChild(node);
|
||
}
|
||
}
|
||
|
||
|
||
//@}
|
||
///// Canonical space sequences /////
|
||
//@{
|
||
|
||
function canonicalSpaceSequence(n, nonBreakingStart, nonBreakingEnd) {
|
||
// "If n is zero, return the empty string."
|
||
if (n == 0) {
|
||
return "";
|
||
}
|
||
|
||
// "If n is one and both non-breaking start and non-breaking end are false,
|
||
// return a single space (U+0020)."
|
||
if (n == 1 && !nonBreakingStart && !nonBreakingEnd) {
|
||
return " ";
|
||
}
|
||
|
||
// "If n is one, return a single non-breaking space (U+00A0)."
|
||
if (n == 1) {
|
||
return "\xa0";
|
||
}
|
||
|
||
// "Let buffer be the empty string."
|
||
var buffer = "";
|
||
|
||
// "If non-breaking start is true, let repeated pair be U+00A0 U+0020.
|
||
// Otherwise, let it be U+0020 U+00A0."
|
||
var repeatedPair;
|
||
if (nonBreakingStart) {
|
||
repeatedPair = "\xa0 ";
|
||
} else {
|
||
repeatedPair = " \xa0";
|
||
}
|
||
|
||
// "While n is greater than three, append repeated pair to buffer and
|
||
// subtract two from n."
|
||
while (n > 3) {
|
||
buffer += repeatedPair;
|
||
n -= 2;
|
||
}
|
||
|
||
// "If n is three, append a three-element string to buffer depending on
|
||
// non-breaking start and non-breaking end:"
|
||
if (n == 3) {
|
||
buffer +=
|
||
!nonBreakingStart && !nonBreakingEnd ? " \xa0 "
|
||
: nonBreakingStart && !nonBreakingEnd ? "\xa0\xa0 "
|
||
: !nonBreakingStart && nonBreakingEnd ? " \xa0\xa0"
|
||
: nonBreakingStart && nonBreakingEnd ? "\xa0 \xa0"
|
||
: "impossible";
|
||
|
||
// "Otherwise, append a two-element string to buffer depending on
|
||
// non-breaking start and non-breaking end:"
|
||
} else {
|
||
buffer +=
|
||
!nonBreakingStart && !nonBreakingEnd ? "\xa0 "
|
||
: nonBreakingStart && !nonBreakingEnd ? "\xa0 "
|
||
: !nonBreakingStart && nonBreakingEnd ? " \xa0"
|
||
: nonBreakingStart && nonBreakingEnd ? "\xa0\xa0"
|
||
: "impossible";
|
||
}
|
||
|
||
// "Return buffer."
|
||
return buffer;
|
||
}
|
||
|
||
function canonicalizeWhitespace(node, offset, fixCollapsedSpace) {
|
||
if (fixCollapsedSpace === undefined) {
|
||
// "an optional boolean argument fix collapsed space that defaults to
|
||
// true"
|
||
fixCollapsedSpace = true;
|
||
}
|
||
|
||
// "If node is neither editable nor an editing host, abort these steps."
|
||
if (!isEditable(node) && !isEditingHost(node)) {
|
||
return;
|
||
}
|
||
|
||
// "Let start node equal node and let start offset equal offset."
|
||
var startNode = node;
|
||
var startOffset = offset;
|
||
|
||
// "Repeat the following steps:"
|
||
while (true) {
|
||
// "If start node has a child in the same editing host with index start
|
||
// offset minus one, set start node to that child, then set start
|
||
// offset to start node's length."
|
||
if (0 <= startOffset - 1
|
||
&& inSameEditingHost(startNode, startNode.childNodes[startOffset - 1])) {
|
||
startNode = startNode.childNodes[startOffset - 1];
|
||
startOffset = getNodeLength(startNode);
|
||
|
||
// "Otherwise, if start offset is zero and start node does not follow a
|
||
// line break and start node's parent is in the same editing host, set
|
||
// start offset to start node's index, then set start node to its
|
||
// parent."
|
||
} else if (startOffset == 0
|
||
&& !followsLineBreak(startNode)
|
||
&& inSameEditingHost(startNode, startNode.parentNode)) {
|
||
startOffset = getNodeIndex(startNode);
|
||
startNode = startNode.parentNode;
|
||
|
||
// "Otherwise, if start node is a Text node and its parent's resolved
|
||
// value for "white-space" is neither "pre" nor "pre-wrap" and start
|
||
// offset is not zero and the (start offset − 1)st element of start
|
||
// node's data is a space (0x0020) or non-breaking space (0x00A0),
|
||
// subtract one from start offset."
|
||
} else if (startNode.nodeType == Node.TEXT_NODE
|
||
&& ["pre", "pre-wrap"].indexOf(getComputedStyle(startNode.parentNode).whiteSpace) == -1
|
||
&& startOffset != 0
|
||
&& /[ \xa0]/.test(startNode.data[startOffset - 1])) {
|
||
startOffset--;
|
||
|
||
// "Otherwise, break from this loop."
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
|
||
// "Let end node equal start node and end offset equal start offset."
|
||
var endNode = startNode;
|
||
var endOffset = startOffset;
|
||
|
||
// "Let length equal zero."
|
||
var length = 0;
|
||
|
||
// "Let collapse spaces be true if start offset is zero and start node
|
||
// follows a line break, otherwise false."
|
||
var collapseSpaces = startOffset == 0 && followsLineBreak(startNode);
|
||
|
||
// "Repeat the following steps:"
|
||
while (true) {
|
||
// "If end node has a child in the same editing host with index end
|
||
// offset, set end node to that child, then set end offset to zero."
|
||
if (endOffset < endNode.childNodes.length
|
||
&& inSameEditingHost(endNode, endNode.childNodes[endOffset])) {
|
||
endNode = endNode.childNodes[endOffset];
|
||
endOffset = 0;
|
||
|
||
// "Otherwise, if end offset is end node's length and end node does not
|
||
// precede a line break and end node's parent is in the same editing
|
||
// host, set end offset to one plus end node's index, then set end node
|
||
// to its parent."
|
||
} else if (endOffset == getNodeLength(endNode)
|
||
&& !precedesLineBreak(endNode)
|
||
&& inSameEditingHost(endNode, endNode.parentNode)) {
|
||
endOffset = 1 + getNodeIndex(endNode);
|
||
endNode = endNode.parentNode;
|
||
|
||
// "Otherwise, if end node is a Text node and its parent's resolved
|
||
// value for "white-space" is neither "pre" nor "pre-wrap" and end
|
||
// offset is not end node's length and the end offsetth element of
|
||
// end node's data is a space (0x0020) or non-breaking space (0x00A0):"
|
||
} else if (endNode.nodeType == Node.TEXT_NODE
|
||
&& ["pre", "pre-wrap"].indexOf(getComputedStyle(endNode.parentNode).whiteSpace) == -1
|
||
&& endOffset != getNodeLength(endNode)
|
||
&& /[ \xa0]/.test(endNode.data[endOffset])) {
|
||
// "If fix collapsed space is true, and collapse spaces is true,
|
||
// and the end offsetth code unit of end node's data is a space
|
||
// (0x0020): call deleteData(end offset, 1) on end node, then
|
||
// continue this loop from the beginning."
|
||
if (fixCollapsedSpace
|
||
&& collapseSpaces
|
||
&& " " == endNode.data[endOffset]) {
|
||
endNode.deleteData(endOffset, 1);
|
||
continue;
|
||
}
|
||
|
||
// "Set collapse spaces to true if the end offsetth element of end
|
||
// node's data is a space (0x0020), false otherwise."
|
||
collapseSpaces = " " == endNode.data[endOffset];
|
||
|
||
// "Add one to end offset."
|
||
endOffset++;
|
||
|
||
// "Add one to length."
|
||
length++;
|
||
|
||
// "Otherwise, break from this loop."
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
|
||
// "If fix collapsed space is true, then while (start node, start offset)
|
||
// is before (end node, end offset):"
|
||
if (fixCollapsedSpace) {
|
||
while (getPosition(startNode, startOffset, endNode, endOffset) == "before") {
|
||
// "If end node has a child in the same editing host with index end
|
||
// offset − 1, set end node to that child, then set end offset to end
|
||
// node's length."
|
||
if (0 <= endOffset - 1
|
||
&& endOffset - 1 < endNode.childNodes.length
|
||
&& inSameEditingHost(endNode, endNode.childNodes[endOffset - 1])) {
|
||
endNode = endNode.childNodes[endOffset - 1];
|
||
endOffset = getNodeLength(endNode);
|
||
|
||
// "Otherwise, if end offset is zero and end node's parent is in the
|
||
// same editing host, set end offset to end node's index, then set end
|
||
// node to its parent."
|
||
} else if (endOffset == 0
|
||
&& inSameEditingHost(endNode, endNode.parentNode)) {
|
||
endOffset = getNodeIndex(endNode);
|
||
endNode = endNode.parentNode;
|
||
|
||
// "Otherwise, if end node is a Text node and its parent's resolved
|
||
// value for "white-space" is neither "pre" nor "pre-wrap" and end
|
||
// offset is end node's length and the last code unit of end node's
|
||
// data is a space (0x0020) and end node precedes a line break:"
|
||
} else if (endNode.nodeType == Node.TEXT_NODE
|
||
&& ["pre", "pre-wrap"].indexOf(getComputedStyle(endNode.parentNode).whiteSpace) == -1
|
||
&& endOffset == getNodeLength(endNode)
|
||
&& endNode.data[endNode.data.length - 1] == " "
|
||
&& precedesLineBreak(endNode)) {
|
||
// "Subtract one from end offset."
|
||
endOffset--;
|
||
|
||
// "Subtract one from length."
|
||
length--;
|
||
|
||
// "Call deleteData(end offset, 1) on end node."
|
||
endNode.deleteData(endOffset, 1);
|
||
|
||
// "Otherwise, break from this loop."
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
|
||
// "Let replacement whitespace be the canonical space sequence of length
|
||
// length. non-breaking start is true if start offset is zero and start
|
||
// node follows a line break, and false otherwise. non-breaking end is true
|
||
// if end offset is end node's length and end node precedes a line break,
|
||
// and false otherwise."
|
||
var replacementWhitespace = canonicalSpaceSequence(length,
|
||
startOffset == 0 && followsLineBreak(startNode),
|
||
endOffset == getNodeLength(endNode) && precedesLineBreak(endNode));
|
||
|
||
// "While (start node, start offset) is before (end node, end offset):"
|
||
while (getPosition(startNode, startOffset, endNode, endOffset) == "before") {
|
||
// "If start node has a child with index start offset, set start node
|
||
// to that child, then set start offset to zero."
|
||
if (startOffset < startNode.childNodes.length) {
|
||
startNode = startNode.childNodes[startOffset];
|
||
startOffset = 0;
|
||
|
||
// "Otherwise, if start node is not a Text node or if start offset is
|
||
// start node's length, set start offset to one plus start node's
|
||
// index, then set start node to its parent."
|
||
} else if (startNode.nodeType != Node.TEXT_NODE
|
||
|| startOffset == getNodeLength(startNode)) {
|
||
startOffset = 1 + getNodeIndex(startNode);
|
||
startNode = startNode.parentNode;
|
||
|
||
// "Otherwise:"
|
||
} else {
|
||
// "Remove the first element from replacement whitespace, and let
|
||
// element be that element."
|
||
var element = replacementWhitespace[0];
|
||
replacementWhitespace = replacementWhitespace.slice(1);
|
||
|
||
// "If element is not the same as the start offsetth element of
|
||
// start node's data:"
|
||
if (element != startNode.data[startOffset]) {
|
||
// "Call insertData(start offset, element) on start node."
|
||
startNode.insertData(startOffset, element);
|
||
|
||
// "Call deleteData(start offset + 1, 1) on start node."
|
||
startNode.deleteData(startOffset + 1, 1);
|
||
}
|
||
|
||
// "Add one to start offset."
|
||
startOffset++;
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
//@}
|
||
///// Indenting and outdenting /////
|
||
//@{
|
||
|
||
function indentNodes(nodeList) {
|
||
// "If node list is empty, do nothing and abort these steps."
|
||
if (!nodeList.length) {
|
||
return;
|
||
}
|
||
|
||
// "Let first node be the first member of node list."
|
||
var firstNode = nodeList[0];
|
||
|
||
// "If first node's parent is an ol or ul:"
|
||
if (isHtmlElement(firstNode.parentNode, ["OL", "UL"])) {
|
||
// "Let tag be the local name of the parent of first node."
|
||
var tag = firstNode.parentNode.tagName;
|
||
|
||
// "Wrap node list, with sibling criteria returning true for an HTML
|
||
// element with local name tag and false otherwise, and new parent
|
||
// instructions returning the result of calling createElement(tag) on
|
||
// the ownerDocument of first node."
|
||
wrap(nodeList,
|
||
function(node) { return isHtmlElement(node, tag) },
|
||
function() { return firstNode.ownerDocument.createElement(tag) });
|
||
|
||
// "Abort these steps."
|
||
return;
|
||
}
|
||
|
||
// "Wrap node list, with sibling criteria returning true for a simple
|
||
// indentation element and false otherwise, and new parent instructions
|
||
// returning the result of calling createElement("blockquote") on the
|
||
// ownerDocument of first node. Let new parent be the result."
|
||
var newParent = wrap(nodeList,
|
||
function(node) { return isSimpleIndentationElement(node) },
|
||
function() { return firstNode.ownerDocument.createElement("blockquote") });
|
||
|
||
// "Fix disallowed ancestors of new parent."
|
||
fixDisallowedAncestors(newParent);
|
||
}
|
||
|
||
function outdentNode(node) {
|
||
// "If node is not editable, abort these steps."
|
||
if (!isEditable(node)) {
|
||
return;
|
||
}
|
||
|
||
// "If node is a simple indentation element, remove node, preserving its
|
||
// descendants. Then abort these steps."
|
||
if (isSimpleIndentationElement(node)) {
|
||
removePreservingDescendants(node);
|
||
return;
|
||
}
|
||
|
||
// "If node is an indentation element:"
|
||
if (isIndentationElement(node)) {
|
||
// "Unset the dir attribute of node, if any."
|
||
node.removeAttribute("dir");
|
||
|
||
// "Unset the margin, padding, and border CSS properties of node."
|
||
node.style.margin = "";
|
||
node.style.padding = "";
|
||
node.style.border = "";
|
||
if (node.getAttribute("style") == ""
|
||
// Crazy WebKit bug: https://bugs.webkit.org/show_bug.cgi?id=68551
|
||
|| node.getAttribute("style") == "border-width: initial; border-color: initial; ") {
|
||
node.removeAttribute("style");
|
||
}
|
||
|
||
// "Set the tag name of node to "div"."
|
||
setTagName(node, "div");
|
||
|
||
// "Abort these steps."
|
||
return;
|
||
}
|
||
|
||
// "Let current ancestor be node's parent."
|
||
var currentAncestor = node.parentNode;
|
||
|
||
// "Let ancestor list be a list of nodes, initially empty."
|
||
var ancestorList = [];
|
||
|
||
// "While current ancestor is an editable Element that is neither a simple
|
||
// indentation element nor an ol nor a ul, append current ancestor to
|
||
// ancestor list and then set current ancestor to its parent."
|
||
while (isEditable(currentAncestor)
|
||
&& currentAncestor.nodeType == Node.ELEMENT_NODE
|
||
&& !isSimpleIndentationElement(currentAncestor)
|
||
&& !isHtmlElement(currentAncestor, ["ol", "ul"])) {
|
||
ancestorList.push(currentAncestor);
|
||
currentAncestor = currentAncestor.parentNode;
|
||
}
|
||
|
||
// "If current ancestor is not an editable simple indentation element:"
|
||
if (!isEditable(currentAncestor)
|
||
|| !isSimpleIndentationElement(currentAncestor)) {
|
||
// "Let current ancestor be node's parent."
|
||
currentAncestor = node.parentNode;
|
||
|
||
// "Let ancestor list be the empty list."
|
||
ancestorList = [];
|
||
|
||
// "While current ancestor is an editable Element that is neither an
|
||
// indentation element nor an ol nor a ul, append current ancestor to
|
||
// ancestor list and then set current ancestor to its parent."
|
||
while (isEditable(currentAncestor)
|
||
&& currentAncestor.nodeType == Node.ELEMENT_NODE
|
||
&& !isIndentationElement(currentAncestor)
|
||
&& !isHtmlElement(currentAncestor, ["ol", "ul"])) {
|
||
ancestorList.push(currentAncestor);
|
||
currentAncestor = currentAncestor.parentNode;
|
||
}
|
||
}
|
||
|
||
// "If node is an ol or ul and current ancestor is not an editable
|
||
// indentation element:"
|
||
if (isHtmlElement(node, ["OL", "UL"])
|
||
&& (!isEditable(currentAncestor)
|
||
|| !isIndentationElement(currentAncestor))) {
|
||
// "Unset the reversed, start, and type attributes of node, if any are
|
||
// set."
|
||
node.removeAttribute("reversed");
|
||
node.removeAttribute("start");
|
||
node.removeAttribute("type");
|
||
|
||
// "Let children be the children of node."
|
||
var children = [].slice.call(node.childNodes);
|
||
|
||
// "If node has attributes, and its parent is not an ol or ul, set the
|
||
// tag name of node to "div"."
|
||
if (node.attributes.length
|
||
&& !isHtmlElement(node.parentNode, ["OL", "UL"])) {
|
||
setTagName(node, "div");
|
||
|
||
// "Otherwise:"
|
||
} else {
|
||
// "Record the values of node's children, and let values be the
|
||
// result."
|
||
var values = recordValues([].slice.call(node.childNodes));
|
||
|
||
// "Remove node, preserving its descendants."
|
||
removePreservingDescendants(node);
|
||
|
||
// "Restore the values from values."
|
||
restoreValues(values);
|
||
}
|
||
|
||
// "Fix disallowed ancestors of each member of children."
|
||
for (var i = 0; i < children.length; i++) {
|
||
fixDisallowedAncestors(children[i]);
|
||
}
|
||
|
||
// "Abort these steps."
|
||
return;
|
||
}
|
||
|
||
// "If current ancestor is not an editable indentation element, abort these
|
||
// steps."
|
||
if (!isEditable(currentAncestor)
|
||
|| !isIndentationElement(currentAncestor)) {
|
||
return;
|
||
}
|
||
|
||
// "Append current ancestor to ancestor list."
|
||
ancestorList.push(currentAncestor);
|
||
|
||
// "Let original ancestor be current ancestor."
|
||
var originalAncestor = currentAncestor;
|
||
|
||
// "While ancestor list is not empty:"
|
||
while (ancestorList.length) {
|
||
// "Let current ancestor be the last member of ancestor list."
|
||
//
|
||
// "Remove the last member of ancestor list."
|
||
currentAncestor = ancestorList.pop();
|
||
|
||
// "Let target be the child of current ancestor that is equal to either
|
||
// node or the last member of ancestor list."
|
||
var target = node.parentNode == currentAncestor
|
||
? node
|
||
: ancestorList[ancestorList.length - 1];
|
||
|
||
// "If target is an inline node that is not a br, and its nextSibling
|
||
// is a br, remove target's nextSibling from its parent."
|
||
if (isInlineNode(target)
|
||
&& !isHtmlElement(target, "BR")
|
||
&& isHtmlElement(target.nextSibling, "BR")) {
|
||
target.parentNode.removeChild(target.nextSibling);
|
||
}
|
||
|
||
// "Let preceding siblings be the preceding siblings of target, and let
|
||
// following siblings be the following siblings of target."
|
||
var precedingSiblings = [].slice.call(currentAncestor.childNodes, 0, getNodeIndex(target));
|
||
var followingSiblings = [].slice.call(currentAncestor.childNodes, 1 + getNodeIndex(target));
|
||
|
||
// "Indent preceding siblings."
|
||
indentNodes(precedingSiblings);
|
||
|
||
// "Indent following siblings."
|
||
indentNodes(followingSiblings);
|
||
}
|
||
|
||
// "Outdent original ancestor."
|
||
outdentNode(originalAncestor);
|
||
}
|
||
|
||
|
||
//@}
|
||
///// Toggling lists /////
|
||
//@{
|
||
|
||
function toggleLists(tagName) {
|
||
// "Let mode be "disable" if the selection's list state is tag name, and
|
||
// "enable" otherwise."
|
||
var mode = getSelectionListState() == tagName ? "disable" : "enable";
|
||
|
||
var range = getActiveRange();
|
||
tagName = tagName.toUpperCase();
|
||
|
||
// "Let other tag name be "ol" if tag name is "ul", and "ul" if tag name is
|
||
// "ol"."
|
||
var otherTagName = tagName == "OL" ? "UL" : "OL";
|
||
|
||
// "Let items be a list of all lis that are ancestor containers of the
|
||
// range's start and/or end node."
|
||
//
|
||
// It's annoying to get this in tree order using functional stuff without
|
||
// doing getDescendants(document), which is slow, so I do it imperatively.
|
||
var items = [];
|
||
(function(){
|
||
for (
|
||
var ancestorContainer = range.endContainer;
|
||
ancestorContainer != range.commonAncestorContainer;
|
||
ancestorContainer = ancestorContainer.parentNode
|
||
) {
|
||
if (isHtmlElement(ancestorContainer, "li")) {
|
||
items.unshift(ancestorContainer);
|
||
}
|
||
}
|
||
for (
|
||
var ancestorContainer = range.startContainer;
|
||
ancestorContainer;
|
||
ancestorContainer = ancestorContainer.parentNode
|
||
) {
|
||
if (isHtmlElement(ancestorContainer, "li")) {
|
||
items.unshift(ancestorContainer);
|
||
}
|
||
}
|
||
})();
|
||
|
||
// "For each item in items, normalize sublists of item."
|
||
items.forEach(normalizeSublists);
|
||
|
||
// "Block-extend the range, and let new range be the result."
|
||
var newRange = blockExtend(range);
|
||
|
||
// "If mode is "enable", then let lists to convert consist of every
|
||
// editable HTML element with local name other tag name that is contained
|
||
// in new range, and for every list in lists to convert:"
|
||
if (mode == "enable") {
|
||
getAllContainedNodes(newRange, function(node) {
|
||
return isEditable(node)
|
||
&& isHtmlElement(node, otherTagName);
|
||
}).forEach(function(list) {
|
||
// "If list's previousSibling or nextSibling is an editable HTML
|
||
// element with local name tag name:"
|
||
if ((isEditable(list.previousSibling) && isHtmlElement(list.previousSibling, tagName))
|
||
|| (isEditable(list.nextSibling) && isHtmlElement(list.nextSibling, tagName))) {
|
||
// "Let children be list's children."
|
||
var children = [].slice.call(list.childNodes);
|
||
|
||
// "Record the values of children, and let values be the
|
||
// result."
|
||
var values = recordValues(children);
|
||
|
||
// "Split the parent of children."
|
||
splitParent(children);
|
||
|
||
// "Wrap children, with sibling criteria returning true for an
|
||
// HTML element with local name tag name and false otherwise."
|
||
wrap(children, function(node) { return isHtmlElement(node, tagName) });
|
||
|
||
// "Restore the values from values."
|
||
restoreValues(values);
|
||
|
||
// "Otherwise, set the tag name of list to tag name."
|
||
} else {
|
||
setTagName(list, tagName);
|
||
}
|
||
});
|
||
}
|
||
|
||
// "Let node list be a list of nodes, initially empty."
|
||
//
|
||
// "For each node node contained in new range, if node is editable; the
|
||
// last member of node list (if any) is not an ancestor of node; node
|
||
// is not an indentation element; and either node is an ol or ul, or its
|
||
// parent is an ol or ul, or it is an allowed child of "li"; then append
|
||
// node to node list."
|
||
var nodeList = getContainedNodes(newRange, function(node) {
|
||
return isEditable(node)
|
||
&& !isIndentationElement(node)
|
||
&& (isHtmlElement(node, ["OL", "UL"])
|
||
|| isHtmlElement(node.parentNode, ["OL", "UL"])
|
||
|| isAllowedChild(node, "li"));
|
||
});
|
||
|
||
// "If mode is "enable", remove from node list any ol or ul whose parent is
|
||
// not also an ol or ul."
|
||
if (mode == "enable") {
|
||
nodeList = nodeList.filter(function(node) {
|
||
return !isHtmlElement(node, ["ol", "ul"])
|
||
|| isHtmlElement(node.parentNode, ["ol", "ul"]);
|
||
});
|
||
}
|
||
|
||
// "If mode is "disable", then while node list is not empty:"
|
||
if (mode == "disable") {
|
||
while (nodeList.length) {
|
||
// "Let sublist be an empty list of nodes."
|
||
var sublist = [];
|
||
|
||
// "Remove the first member from node list and append it to
|
||
// sublist."
|
||
sublist.push(nodeList.shift());
|
||
|
||
// "If the first member of sublist is an HTML element with local
|
||
// name tag name, outdent it and continue this loop from the
|
||
// beginning."
|
||
if (isHtmlElement(sublist[0], tagName)) {
|
||
outdentNode(sublist[0]);
|
||
continue;
|
||
}
|
||
|
||
// "While node list is not empty, and the first member of node list
|
||
// is the nextSibling of the last member of sublist and is not an
|
||
// HTML element with local name tag name, remove the first member
|
||
// from node list and append it to sublist."
|
||
while (nodeList.length
|
||
&& nodeList[0] == sublist[sublist.length - 1].nextSibling
|
||
&& !isHtmlElement(nodeList[0], tagName)) {
|
||
sublist.push(nodeList.shift());
|
||
}
|
||
|
||
// "Record the values of sublist, and let values be the result."
|
||
var values = recordValues(sublist);
|
||
|
||
// "Split the parent of sublist."
|
||
splitParent(sublist);
|
||
|
||
// "Fix disallowed ancestors of each member of sublist."
|
||
for (var i = 0; i < sublist.length; i++) {
|
||
fixDisallowedAncestors(sublist[i]);
|
||
}
|
||
|
||
// "Restore the values from values."
|
||
restoreValues(values);
|
||
}
|
||
|
||
// "Otherwise, while node list is not empty:"
|
||
} else {
|
||
while (nodeList.length) {
|
||
// "Let sublist be an empty list of nodes."
|
||
var sublist = [];
|
||
|
||
// "While either sublist is empty, or node list is not empty and
|
||
// its first member is the nextSibling of sublist's last member:"
|
||
while (!sublist.length
|
||
|| (nodeList.length
|
||
&& nodeList[0] == sublist[sublist.length - 1].nextSibling)) {
|
||
// "If node list's first member is a p or div, set the tag name
|
||
// of node list's first member to "li", and append the result
|
||
// to sublist. Remove the first member from node list."
|
||
if (isHtmlElement(nodeList[0], ["p", "div"])) {
|
||
sublist.push(setTagName(nodeList[0], "li"));
|
||
nodeList.shift();
|
||
|
||
// "Otherwise, if the first member of node list is an li or ol
|
||
// or ul, remove it from node list and append it to sublist."
|
||
} else if (isHtmlElement(nodeList[0], ["li", "ol", "ul"])) {
|
||
sublist.push(nodeList.shift());
|
||
|
||
// "Otherwise:"
|
||
} else {
|
||
// "Let nodes to wrap be a list of nodes, initially empty."
|
||
var nodesToWrap = [];
|
||
|
||
// "While nodes to wrap is empty, or node list is not empty
|
||
// and its first member is the nextSibling of nodes to
|
||
// wrap's last member and the first member of node list is
|
||
// an inline node and the last member of nodes to wrap is
|
||
// an inline node other than a br, remove the first member
|
||
// from node list and append it to nodes to wrap."
|
||
while (!nodesToWrap.length
|
||
|| (nodeList.length
|
||
&& nodeList[0] == nodesToWrap[nodesToWrap.length - 1].nextSibling
|
||
&& isInlineNode(nodeList[0])
|
||
&& isInlineNode(nodesToWrap[nodesToWrap.length - 1])
|
||
&& !isHtmlElement(nodesToWrap[nodesToWrap.length - 1], "br"))) {
|
||
nodesToWrap.push(nodeList.shift());
|
||
}
|
||
|
||
// "Wrap nodes to wrap, with new parent instructions
|
||
// returning the result of calling createElement("li") on
|
||
// the context object. Append the result to sublist."
|
||
sublist.push(wrap(nodesToWrap,
|
||
undefined,
|
||
function() { return document.createElement("li") }));
|
||
}
|
||
}
|
||
|
||
// "If sublist's first member's parent is an HTML element with
|
||
// local name tag name, or if every member of sublist is an ol or
|
||
// ul, continue this loop from the beginning."
|
||
if (isHtmlElement(sublist[0].parentNode, tagName)
|
||
|| sublist.every(function(node) { return isHtmlElement(node, ["ol", "ul"]) })) {
|
||
continue;
|
||
}
|
||
|
||
// "If sublist's first member's parent is an HTML element with
|
||
// local name other tag name:"
|
||
if (isHtmlElement(sublist[0].parentNode, otherTagName)) {
|
||
// "Record the values of sublist, and let values be the
|
||
// result."
|
||
var values = recordValues(sublist);
|
||
|
||
// "Split the parent of sublist."
|
||
splitParent(sublist);
|
||
|
||
// "Wrap sublist, with sibling criteria returning true for an
|
||
// HTML element with local name tag name and false otherwise,
|
||
// and new parent instructions returning the result of calling
|
||
// createElement(tag name) on the context object."
|
||
wrap(sublist,
|
||
function(node) { return isHtmlElement(node, tagName) },
|
||
function() { return document.createElement(tagName) });
|
||
|
||
// "Restore the values from values."
|
||
restoreValues(values);
|
||
|
||
// "Continue this loop from the beginning."
|
||
continue;
|
||
}
|
||
|
||
// "Wrap sublist, with sibling criteria returning true for an HTML
|
||
// element with local name tag name and false otherwise, and new
|
||
// parent instructions being the following:"
|
||
// . . .
|
||
// "Fix disallowed ancestors of the previous step's result."
|
||
fixDisallowedAncestors(wrap(sublist,
|
||
function(node) { return isHtmlElement(node, tagName) },
|
||
function() {
|
||
// "If sublist's first member's parent is not an editable
|
||
// simple indentation element, or sublist's first member's
|
||
// parent's previousSibling is not an editable HTML element
|
||
// with local name tag name, call createElement(tag name)
|
||
// on the context object and return the result."
|
||
if (!isEditable(sublist[0].parentNode)
|
||
|| !isSimpleIndentationElement(sublist[0].parentNode)
|
||
|| !isEditable(sublist[0].parentNode.previousSibling)
|
||
|| !isHtmlElement(sublist[0].parentNode.previousSibling, tagName)) {
|
||
return document.createElement(tagName);
|
||
}
|
||
|
||
// "Let list be sublist's first member's parent's
|
||
// previousSibling."
|
||
var list = sublist[0].parentNode.previousSibling;
|
||
|
||
// "Normalize sublists of list's lastChild."
|
||
normalizeSublists(list.lastChild);
|
||
|
||
// "If list's lastChild is not an editable HTML element
|
||
// with local name tag name, call createElement(tag name)
|
||
// on the context object, and append the result as the last
|
||
// child of list."
|
||
if (!isEditable(list.lastChild)
|
||
|| !isHtmlElement(list.lastChild, tagName)) {
|
||
list.appendChild(document.createElement(tagName));
|
||
}
|
||
|
||
// "Return the last child of list."
|
||
return list.lastChild;
|
||
}
|
||
));
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
//@}
|
||
///// Justifying the selection /////
|
||
//@{
|
||
|
||
function justifySelection(alignment) {
|
||
// "Block-extend the active range, and let new range be the result."
|
||
var newRange = blockExtend(globalRange);
|
||
|
||
// "Let element list be a list of all editable Elements contained in new
|
||
// range that either has an attribute in the HTML namespace whose local
|
||
// name is "align", or has a style attribute that sets "text-align", or is
|
||
// a center."
|
||
var elementList = getAllContainedNodes(newRange, function(node) {
|
||
return node.nodeType == Node.ELEMENT_NODE
|
||
&& isEditable(node)
|
||
// Ignoring namespaces here
|
||
&& (
|
||
node.hasAttribute("align")
|
||
|| node.style.textAlign != ""
|
||
|| isHtmlElement(node, "center")
|
||
);
|
||
});
|
||
|
||
// "For each element in element list:"
|
||
for (var i = 0; i < elementList.length; i++) {
|
||
var element = elementList[i];
|
||
|
||
// "If element has an attribute in the HTML namespace whose local name
|
||
// is "align", remove that attribute."
|
||
element.removeAttribute("align");
|
||
|
||
// "Unset the CSS property "text-align" on element, if it's set by a
|
||
// style attribute."
|
||
element.style.textAlign = "";
|
||
if (element.getAttribute("style") == "") {
|
||
element.removeAttribute("style");
|
||
}
|
||
|
||
// "If element is a div or span or center with no attributes, remove
|
||
// it, preserving its descendants."
|
||
if (isHtmlElement(element, ["div", "span", "center"])
|
||
&& !element.attributes.length) {
|
||
removePreservingDescendants(element);
|
||
}
|
||
|
||
// "If element is a center with one or more attributes, set the tag
|
||
// name of element to "div"."
|
||
if (isHtmlElement(element, "center")
|
||
&& element.attributes.length) {
|
||
setTagName(element, "div");
|
||
}
|
||
}
|
||
|
||
// "Block-extend the active range, and let new range be the result."
|
||
newRange = blockExtend(globalRange);
|
||
|
||
// "Let node list be a list of nodes, initially empty."
|
||
var nodeList = [];
|
||
|
||
// "For each node node contained in new range, append node to node list if
|
||
// the last member of node list (if any) is not an ancestor of node; node
|
||
// is editable; node is an allowed child of "div"; and node's alignment
|
||
// value is not alignment."
|
||
nodeList = getContainedNodes(newRange, function(node) {
|
||
return isEditable(node)
|
||
&& isAllowedChild(node, "div")
|
||
&& getAlignmentValue(node) != alignment;
|
||
});
|
||
|
||
// "While node list is not empty:"
|
||
while (nodeList.length) {
|
||
// "Let sublist be a list of nodes, initially empty."
|
||
var sublist = [];
|
||
|
||
// "Remove the first member of node list and append it to sublist."
|
||
sublist.push(nodeList.shift());
|
||
|
||
// "While node list is not empty, and the first member of node list is
|
||
// the nextSibling of the last member of sublist, remove the first
|
||
// member of node list and append it to sublist."
|
||
while (nodeList.length
|
||
&& nodeList[0] == sublist[sublist.length - 1].nextSibling) {
|
||
sublist.push(nodeList.shift());
|
||
}
|
||
|
||
// "Wrap sublist. Sibling criteria returns true for any div that has
|
||
// one or both of the following two attributes and no other attributes,
|
||
// and false otherwise:"
|
||
//
|
||
// * "An align attribute whose value is an ASCII case-insensitive
|
||
// match for alignment.
|
||
// * "A style attribute which sets exactly one CSS property
|
||
// (including unrecognized or invalid attributes), which is
|
||
// "text-align", which is set to alignment.
|
||
//
|
||
// "New parent instructions are to call createElement("div") on the
|
||
// context object, then set its CSS property "text-align" to alignment
|
||
// and return the result."
|
||
wrap(sublist,
|
||
function(node) {
|
||
return isHtmlElement(node, "div")
|
||
&& [].every.call(node.attributes, function(attr) {
|
||
return (attr.name == "align" && attr.value.toLowerCase() == alignment)
|
||
|| (attr.name == "style" && node.style.length == 1 && node.style.textAlign == alignment);
|
||
});
|
||
},
|
||
function() {
|
||
var newParent = document.createElement("div");
|
||
newParent.setAttribute("style", "text-align: " + alignment);
|
||
return newParent;
|
||
}
|
||
);
|
||
}
|
||
}
|
||
|
||
|
||
//@}
|
||
///// Automatic linking /////
|
||
//@{
|
||
// "An autolinkable URL is a string of the following form:"
|
||
var autolinkableUrlRegexp =
|
||
// "Either a string matching the scheme pattern from RFC 3986 section 3.1
|
||
// followed by the literal string ://, or the literal string mailto:;
|
||
// followed by"
|
||
//
|
||
// From the RFC: scheme = ALPHA *( ALPHA / DIGIT / "+" / "-" / "." )
|
||
"([a-zA-Z][a-zA-Z0-9+.-]*://|mailto:)"
|
||
// "Zero or more characters other than space characters; followed by"
|
||
+ "[^ \t\n\f\r]*"
|
||
// "A character that is not one of the ASCII characters !"'(),-.:;<>[]`{}."
|
||
+ "[^!\"'(),\\-.:;<>[\\]`{}]";
|
||
|
||
// "A valid e-mail address is a string that matches the ABNF production 1*(
|
||
// atext / "." ) "@" ldh-str *( "." ldh-str ) where atext is defined in RFC
|
||
// 5322 section 3.2.3, and ldh-str is defined in RFC 1034 section 3.5."
|
||
//
|
||
// atext: ALPHA / DIGIT / "!" / "#" / "$" / "%" / "&" / "'" / "*" / "+" / "-" /
|
||
// "/" / "=" / "?" / "^" / "_" / "`" / "{" / "|" / "}" / "~"
|
||
//
|
||
//<ldh-str> ::= <let-dig-hyp> | <let-dig-hyp> <ldh-str>
|
||
//<let-dig-hyp> ::= <let-dig> | "-"
|
||
//<let-dig> ::= <letter> | <digit>
|
||
var validEmailRegexp =
|
||
"[a-zA-Z0-9!#$%&'*+\\-/=?^_`{|}~.]+@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)*";
|
||
|
||
function autolink(node, endOffset) {
|
||
// "While (node, end offset)'s previous equivalent point is not null, set
|
||
// it to its previous equivalent point."
|
||
while (getPreviousEquivalentPoint(node, endOffset)) {
|
||
var prev = getPreviousEquivalentPoint(node, endOffset);
|
||
node = prev[0];
|
||
endOffset = prev[1];
|
||
}
|
||
|
||
// "If node is not a Text node, or has an a ancestor, do nothing and abort
|
||
// these steps."
|
||
if (node.nodeType != Node.TEXT_NODE
|
||
|| getAncestors(node).some(function(ancestor) { return isHtmlElement(ancestor, "a") })) {
|
||
return;
|
||
}
|
||
|
||
// "Let search be the largest substring of node's data whose end is end
|
||
// offset and that contains no space characters."
|
||
var search = /[^ \t\n\f\r]*$/.exec(node.substringData(0, endOffset))[0];
|
||
|
||
// "If some substring of search is an autolinkable URL:"
|
||
if (new RegExp(autolinkableUrlRegexp).test(search)) {
|
||
// "While there is no substring of node's data ending at end offset
|
||
// that is an autolinkable URL, decrement end offset."
|
||
while (!(new RegExp(autolinkableUrlRegexp + "$").test(node.substringData(0, endOffset)))) {
|
||
endOffset--;
|
||
}
|
||
|
||
// "Let start offset be the start index of the longest substring of
|
||
// node's data that is an autolinkable URL ending at end offset."
|
||
var startOffset = new RegExp(autolinkableUrlRegexp + "$").exec(node.substringData(0, endOffset)).index;
|
||
|
||
// "Let href be the substring of node's data starting at start offset
|
||
// and ending at end offset."
|
||
var href = node.substringData(startOffset, endOffset - startOffset);
|
||
|
||
// "Otherwise, if some substring of search is a valid e-mail address:"
|
||
} else if (new RegExp(validEmailRegexp).test(search)) {
|
||
// "While there is no substring of node's data ending at end offset
|
||
// that is a valid e-mail address, decrement end offset."
|
||
while (!(new RegExp(validEmailRegexp + "$").test(node.substringData(0, endOffset)))) {
|
||
endOffset--;
|
||
}
|
||
|
||
// "Let start offset be the start index of the longest substring of
|
||
// node's data that is a valid e-mail address ending at end offset."
|
||
var startOffset = new RegExp(validEmailRegexp + "$").exec(node.substringData(0, endOffset)).index;
|
||
|
||
// "Let href be "mailto:" concatenated with the substring of node's
|
||
// data starting at start offset and ending at end offset."
|
||
var href = "mailto:" + node.substringData(startOffset, endOffset - startOffset);
|
||
|
||
// "Otherwise, do nothing and abort these steps."
|
||
} else {
|
||
return;
|
||
}
|
||
|
||
// "Let original range be the active range."
|
||
var originalRange = getActiveRange();
|
||
|
||
// "Create a new range with start (node, start offset) and end (node, end
|
||
// offset), and set the context object's selection's range to it."
|
||
var newRange = document.createRange();
|
||
newRange.setStart(node, startOffset);
|
||
newRange.setEnd(node, endOffset);
|
||
getSelection().removeAllRanges();
|
||
getSelection().addRange(newRange);
|
||
globalRange = newRange;
|
||
|
||
// "Take the action for "createLink", with value equal to href."
|
||
commands.createlink.action(href);
|
||
|
||
// "Set the context object's selection's range to original range."
|
||
getSelection().removeAllRanges();
|
||
getSelection().addRange(originalRange);
|
||
globalRange = originalRange;
|
||
}
|
||
//@}
|
||
///// The delete command /////
|
||
//@{
|
||
commands["delete"] = {
|
||
preservesOverrides: true,
|
||
action: function() {
|
||
// "If the active range is not collapsed, delete the selection and
|
||
// return true."
|
||
if (!getActiveRange().collapsed) {
|
||
deleteSelection();
|
||
return true;
|
||
}
|
||
|
||
// "Canonicalize whitespace at the active range's start."
|
||
canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset);
|
||
|
||
// "Let node and offset be the active range's start node and offset."
|
||
var node = getActiveRange().startContainer;
|
||
var offset = getActiveRange().startOffset;
|
||
|
||
// "Repeat the following steps:"
|
||
while (true) {
|
||
// "If offset is zero and node's previousSibling is an editable
|
||
// invisible node, remove node's previousSibling from its parent."
|
||
if (offset == 0
|
||
&& isEditable(node.previousSibling)
|
||
&& isInvisible(node.previousSibling)) {
|
||
node.parentNode.removeChild(node.previousSibling);
|
||
|
||
// "Otherwise, if node has a child with index offset − 1 and that
|
||
// child is an editable invisible node, remove that child from
|
||
// node, then subtract one from offset."
|
||
} else if (0 <= offset - 1
|
||
&& offset - 1 < node.childNodes.length
|
||
&& isEditable(node.childNodes[offset - 1])
|
||
&& isInvisible(node.childNodes[offset - 1])) {
|
||
node.removeChild(node.childNodes[offset - 1]);
|
||
offset--;
|
||
|
||
// "Otherwise, if offset is zero and node is an inline node, or if
|
||
// node is an invisible node, set offset to the index of node, then
|
||
// set node to its parent."
|
||
} else if ((offset == 0
|
||
&& isInlineNode(node))
|
||
|| isInvisible(node)) {
|
||
offset = getNodeIndex(node);
|
||
node = node.parentNode;
|
||
|
||
// "Otherwise, if node has a child with index offset − 1 and that
|
||
// child is an editable a, remove that child from node, preserving
|
||
// its descendants. Then return true."
|
||
} else if (0 <= offset - 1
|
||
&& offset - 1 < node.childNodes.length
|
||
&& isEditable(node.childNodes[offset - 1])
|
||
&& isHtmlElement(node.childNodes[offset - 1], "a")) {
|
||
removePreservingDescendants(node.childNodes[offset - 1]);
|
||
return true;
|
||
|
||
// "Otherwise, if node has a child with index offset − 1 and that
|
||
// child is not a block node or a br or an img, set node to that
|
||
// child, then set offset to the length of node."
|
||
} else if (0 <= offset - 1
|
||
&& offset - 1 < node.childNodes.length
|
||
&& !isBlockNode(node.childNodes[offset - 1])
|
||
&& !isHtmlElement(node.childNodes[offset - 1], ["br", "img"])) {
|
||
node = node.childNodes[offset - 1];
|
||
offset = getNodeLength(node);
|
||
|
||
// "Otherwise, break from this loop."
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
|
||
// "If node is a Text node and offset is not zero, or if node is a
|
||
// block node that has a child with index offset − 1 and that child is
|
||
// a br or hr or img:"
|
||
if ((node.nodeType == Node.TEXT_NODE
|
||
&& offset != 0)
|
||
|| (isBlockNode(node)
|
||
&& 0 <= offset - 1
|
||
&& offset - 1 < node.childNodes.length
|
||
&& isHtmlElement(node.childNodes[offset - 1], ["br", "hr", "img"]))) {
|
||
// "Call collapse(node, offset) on the context object's Selection."
|
||
getSelection().collapse(node, offset);
|
||
getActiveRange().setEnd(node, offset);
|
||
|
||
// "Call extend(node, offset − 1) on the context object's
|
||
// Selection."
|
||
getSelection().extend(node, offset - 1);
|
||
getActiveRange().setStart(node, offset - 1);
|
||
|
||
// "Delete the selection."
|
||
deleteSelection();
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
// "If node is an inline node, return true."
|
||
if (isInlineNode(node)) {
|
||
return true;
|
||
}
|
||
|
||
// "If node is an li or dt or dd and is the first child of its parent,
|
||
// and offset is zero:"
|
||
if (isHtmlElement(node, ["li", "dt", "dd"])
|
||
&& node == node.parentNode.firstChild
|
||
&& offset == 0) {
|
||
// "Let items be a list of all lis that are ancestors of node."
|
||
//
|
||
// Remember, must be in tree order.
|
||
var items = [];
|
||
for (var ancestor = node.parentNode; ancestor; ancestor = ancestor.parentNode) {
|
||
if (isHtmlElement(ancestor, "li")) {
|
||
items.unshift(ancestor);
|
||
}
|
||
}
|
||
|
||
// "Normalize sublists of each item in items."
|
||
for (var i = 0; i < items.length; i++) {
|
||
normalizeSublists(items[i]);
|
||
}
|
||
|
||
// "Record the values of the one-node list consisting of node, and
|
||
// let values be the result."
|
||
var values = recordValues([node]);
|
||
|
||
// "Split the parent of the one-node list consisting of node."
|
||
splitParent([node]);
|
||
|
||
// "Restore the values from values."
|
||
restoreValues(values);
|
||
|
||
// "If node is a dd or dt, and it is not an allowed child of any of
|
||
// its ancestors in the same editing host, set the tag name of node
|
||
// to the default single-line container name and let node be the
|
||
// result."
|
||
if (isHtmlElement(node, ["dd", "dt"])
|
||
&& getAncestors(node).every(function(ancestor) {
|
||
return !inSameEditingHost(node, ancestor)
|
||
|| !isAllowedChild(node, ancestor)
|
||
})) {
|
||
node = setTagName(node, defaultSingleLineContainerName);
|
||
}
|
||
|
||
// "Fix disallowed ancestors of node."
|
||
fixDisallowedAncestors(node);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
// "Let start node equal node and let start offset equal offset."
|
||
var startNode = node;
|
||
var startOffset = offset;
|
||
|
||
// "Repeat the following steps:"
|
||
while (true) {
|
||
// "If start offset is zero, set start offset to the index of start
|
||
// node and then set start node to its parent."
|
||
if (startOffset == 0) {
|
||
startOffset = getNodeIndex(startNode);
|
||
startNode = startNode.parentNode;
|
||
|
||
// "Otherwise, if start node has an editable invisible child with
|
||
// index start offset minus one, remove it from start node and
|
||
// subtract one from start offset."
|
||
} else if (0 <= startOffset - 1
|
||
&& startOffset - 1 < startNode.childNodes.length
|
||
&& isEditable(startNode.childNodes[startOffset - 1])
|
||
&& isInvisible(startNode.childNodes[startOffset - 1])) {
|
||
startNode.removeChild(startNode.childNodes[startOffset - 1]);
|
||
startOffset--;
|
||
|
||
// "Otherwise, break from this loop."
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
|
||
// "If offset is zero, and node has an editable ancestor container in
|
||
// the same editing host that's an indentation element:"
|
||
if (offset == 0
|
||
&& getAncestors(node).concat(node).filter(function(ancestor) {
|
||
return isEditable(ancestor)
|
||
&& inSameEditingHost(ancestor, node)
|
||
&& isIndentationElement(ancestor);
|
||
}).length) {
|
||
// "Block-extend the range whose start and end are both (node, 0),
|
||
// and let new range be the result."
|
||
var newRange = document.createRange();
|
||
newRange.setStart(node, 0);
|
||
newRange = blockExtend(newRange);
|
||
|
||
// "Let node list be a list of nodes, initially empty."
|
||
//
|
||
// "For each node current node contained in new range, append
|
||
// current node to node list if the last member of node list (if
|
||
// any) is not an ancestor of current node, and current node is
|
||
// editable but has no editable descendants."
|
||
var nodeList = getContainedNodes(newRange, function(currentNode) {
|
||
return isEditable(currentNode)
|
||
&& !hasEditableDescendants(currentNode);
|
||
});
|
||
|
||
// "Outdent each node in node list."
|
||
for (var i = 0; i < nodeList.length; i++) {
|
||
outdentNode(nodeList[i]);
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
// "If the child of start node with index start offset is a table,
|
||
// return true."
|
||
if (isHtmlElement(startNode.childNodes[startOffset], "table")) {
|
||
return true;
|
||
}
|
||
|
||
// "If start node has a child with index start offset − 1, and that
|
||
// child is a table:"
|
||
if (0 <= startOffset - 1
|
||
&& startOffset - 1 < startNode.childNodes.length
|
||
&& isHtmlElement(startNode.childNodes[startOffset - 1], "table")) {
|
||
// "Call collapse(start node, start offset − 1) on the context
|
||
// object's Selection."
|
||
getSelection().collapse(startNode, startOffset - 1);
|
||
getActiveRange().setStart(startNode, startOffset - 1);
|
||
|
||
// "Call extend(start node, start offset) on the context object's
|
||
// Selection."
|
||
getSelection().extend(startNode, startOffset);
|
||
getActiveRange().setEnd(startNode, startOffset);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
// "If offset is zero; and either the child of start node with index
|
||
// start offset minus one is an hr, or the child is a br whose
|
||
// previousSibling is either a br or not an inline node:"
|
||
if (offset == 0
|
||
&& (isHtmlElement(startNode.childNodes[startOffset - 1], "hr")
|
||
|| (
|
||
isHtmlElement(startNode.childNodes[startOffset - 1], "br")
|
||
&& (
|
||
isHtmlElement(startNode.childNodes[startOffset - 1].previousSibling, "br")
|
||
|| !isInlineNode(startNode.childNodes[startOffset - 1].previousSibling)
|
||
)
|
||
)
|
||
)) {
|
||
// "Call collapse(start node, start offset − 1) on the context
|
||
// object's Selection."
|
||
getSelection().collapse(startNode, startOffset - 1);
|
||
getActiveRange().setStart(startNode, startOffset - 1);
|
||
|
||
// "Call extend(start node, start offset) on the context object's
|
||
// Selection."
|
||
getSelection().extend(startNode, startOffset);
|
||
getActiveRange().setEnd(startNode, startOffset);
|
||
|
||
// "Delete the selection."
|
||
deleteSelection();
|
||
|
||
// "Call collapse(node, offset) on the Selection."
|
||
getSelection().collapse(node, offset);
|
||
getActiveRange().setStart(node, offset);
|
||
getActiveRange().collapse(true);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
// "If the child of start node with index start offset is an li or dt
|
||
// or dd, and that child's firstChild is an inline node, and start
|
||
// offset is not zero:"
|
||
if (isHtmlElement(startNode.childNodes[startOffset], ["li", "dt", "dd"])
|
||
&& isInlineNode(startNode.childNodes[startOffset].firstChild)
|
||
&& startOffset != 0) {
|
||
// "Let previous item be the child of start node with index start
|
||
// offset minus one."
|
||
var previousItem = startNode.childNodes[startOffset - 1];
|
||
|
||
// "If previous item's lastChild is an inline node other than a br,
|
||
// call createElement("br") on the context object and append the
|
||
// result as the last child of previous item."
|
||
if (isInlineNode(previousItem.lastChild)
|
||
&& !isHtmlElement(previousItem.lastChild, "br")) {
|
||
previousItem.appendChild(document.createElement("br"));
|
||
}
|
||
|
||
// "If previous item's lastChild is an inline node, call
|
||
// createElement("br") on the context object and append the result
|
||
// as the last child of previous item."
|
||
if (isInlineNode(previousItem.lastChild)) {
|
||
previousItem.appendChild(document.createElement("br"));
|
||
}
|
||
}
|
||
|
||
// "If start node's child with index start offset is an li or dt or dd,
|
||
// and that child's previousSibling is also an li or dt or dd:"
|
||
if (isHtmlElement(startNode.childNodes[startOffset], ["li", "dt", "dd"])
|
||
&& isHtmlElement(startNode.childNodes[startOffset].previousSibling, ["li", "dt", "dd"])) {
|
||
// "Call cloneRange() on the active range, and let original range
|
||
// be the result."
|
||
//
|
||
// We need to add it to extraRanges so it will actually get updated
|
||
// when moving preserving ranges.
|
||
var originalRange = getActiveRange().cloneRange();
|
||
extraRanges.push(originalRange);
|
||
|
||
// "Set start node to its child with index start offset − 1."
|
||
startNode = startNode.childNodes[startOffset - 1];
|
||
|
||
// "Set start offset to start node's length."
|
||
startOffset = getNodeLength(startNode);
|
||
|
||
// "Set node to start node's nextSibling."
|
||
node = startNode.nextSibling;
|
||
|
||
// "Call collapse(start node, start offset) on the context object's
|
||
// Selection."
|
||
getSelection().collapse(startNode, startOffset);
|
||
getActiveRange().setStart(startNode, startOffset);
|
||
|
||
// "Call extend(node, 0) on the context object's Selection."
|
||
getSelection().extend(node, 0);
|
||
getActiveRange().setEnd(node, 0);
|
||
|
||
// "Delete the selection."
|
||
deleteSelection();
|
||
|
||
// "Call removeAllRanges() on the context object's Selection."
|
||
getSelection().removeAllRanges();
|
||
|
||
// "Call addRange(original range) on the context object's
|
||
// Selection."
|
||
getSelection().addRange(originalRange);
|
||
getActiveRange().setStart(originalRange.startContainer, originalRange.startOffset);
|
||
getActiveRange().setEnd(originalRange.endContainer, originalRange.endOffset);
|
||
|
||
// "Return true."
|
||
extraRanges.pop();
|
||
return true;
|
||
}
|
||
|
||
// "While start node has a child with index start offset minus one:"
|
||
while (0 <= startOffset - 1
|
||
&& startOffset - 1 < startNode.childNodes.length) {
|
||
// "If start node's child with index start offset minus one is
|
||
// editable and invisible, remove it from start node, then subtract
|
||
// one from start offset."
|
||
if (isEditable(startNode.childNodes[startOffset - 1])
|
||
&& isInvisible(startNode.childNodes[startOffset - 1])) {
|
||
startNode.removeChild(startNode.childNodes[startOffset - 1]);
|
||
startOffset--;
|
||
|
||
// "Otherwise, set start node to its child with index start offset
|
||
// minus one, then set start offset to the length of start node."
|
||
} else {
|
||
startNode = startNode.childNodes[startOffset - 1];
|
||
startOffset = getNodeLength(startNode);
|
||
}
|
||
}
|
||
|
||
// "Call collapse(start node, start offset) on the context object's
|
||
// Selection."
|
||
getSelection().collapse(startNode, startOffset);
|
||
getActiveRange().setStart(startNode, startOffset);
|
||
|
||
// "Call extend(node, offset) on the context object's Selection."
|
||
getSelection().extend(node, offset);
|
||
getActiveRange().setEnd(node, offset);
|
||
|
||
// "Delete the selection, with direction "backward"."
|
||
deleteSelection({direction: "backward"});
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
};
|
||
|
||
//@}
|
||
///// The formatBlock command /////
|
||
//@{
|
||
// "A formattable block name is "address", "dd", "div", "dt", "h1", "h2", "h3",
|
||
// "h4", "h5", "h6", "p", or "pre"."
|
||
var formattableBlockNames = ["address", "dd", "div", "dt", "h1", "h2", "h3",
|
||
"h4", "h5", "h6", "p", "pre"];
|
||
|
||
commands.formatblock = {
|
||
preservesOverrides: true,
|
||
action: function(value) {
|
||
// "If value begins with a "<" character and ends with a ">" character,
|
||
// remove the first and last characters from it."
|
||
if (/^<.*>$/.test(value)) {
|
||
value = value.slice(1, -1);
|
||
}
|
||
|
||
// "Let value be converted to ASCII lowercase."
|
||
value = value.toLowerCase();
|
||
|
||
// "If value is not a formattable block name, return false."
|
||
if (formattableBlockNames.indexOf(value) == -1) {
|
||
return false;
|
||
}
|
||
|
||
// "Block-extend the active range, and let new range be the result."
|
||
var newRange = blockExtend(getActiveRange());
|
||
|
||
// "Let node list be an empty list of nodes."
|
||
//
|
||
// "For each node node contained in new range, append node to node list
|
||
// if it is editable, the last member of original node list (if any) is
|
||
// not an ancestor of node, node is either a non-list single-line
|
||
// container or an allowed child of "p" or a dd or dt, and node is not
|
||
// the ancestor of a prohibited paragraph child."
|
||
var nodeList = getContainedNodes(newRange, function(node) {
|
||
return isEditable(node)
|
||
&& (isNonListSingleLineContainer(node)
|
||
|| isAllowedChild(node, "p")
|
||
|| isHtmlElement(node, ["dd", "dt"]))
|
||
&& !getDescendants(node).some(isProhibitedParagraphChild);
|
||
});
|
||
|
||
// "Record the values of node list, and let values be the result."
|
||
var values = recordValues(nodeList);
|
||
|
||
// "For each node in node list, while node is the descendant of an
|
||
// editable HTML element in the same editing host, whose local name is
|
||
// a formattable block name, and which is not the ancestor of a
|
||
// prohibited paragraph child, split the parent of the one-node list
|
||
// consisting of node."
|
||
for (var i = 0; i < nodeList.length; i++) {
|
||
var node = nodeList[i];
|
||
while (getAncestors(node).some(function(ancestor) {
|
||
return isEditable(ancestor)
|
||
&& inSameEditingHost(ancestor, node)
|
||
&& isHtmlElement(ancestor, formattableBlockNames)
|
||
&& !getDescendants(ancestor).some(isProhibitedParagraphChild);
|
||
})) {
|
||
splitParent([node]);
|
||
}
|
||
}
|
||
|
||
// "Restore the values from values."
|
||
restoreValues(values);
|
||
|
||
// "While node list is not empty:"
|
||
while (nodeList.length) {
|
||
var sublist;
|
||
|
||
// "If the first member of node list is a single-line
|
||
// container:"
|
||
if (isSingleLineContainer(nodeList[0])) {
|
||
// "Let sublist be the children of the first member of node
|
||
// list."
|
||
sublist = [].slice.call(nodeList[0].childNodes);
|
||
|
||
// "Record the values of sublist, and let values be the
|
||
// result."
|
||
var values = recordValues(sublist);
|
||
|
||
// "Remove the first member of node list from its parent,
|
||
// preserving its descendants."
|
||
removePreservingDescendants(nodeList[0]);
|
||
|
||
// "Restore the values from values."
|
||
restoreValues(values);
|
||
|
||
// "Remove the first member from node list."
|
||
nodeList.shift();
|
||
|
||
// "Otherwise:"
|
||
} else {
|
||
// "Let sublist be an empty list of nodes."
|
||
sublist = [];
|
||
|
||
// "Remove the first member of node list and append it to
|
||
// sublist."
|
||
sublist.push(nodeList.shift());
|
||
|
||
// "While node list is not empty, and the first member of
|
||
// node list is the nextSibling of the last member of
|
||
// sublist, and the first member of node list is not a
|
||
// single-line container, and the last member of sublist is
|
||
// not a br, remove the first member of node list and
|
||
// append it to sublist."
|
||
while (nodeList.length
|
||
&& nodeList[0] == sublist[sublist.length - 1].nextSibling
|
||
&& !isSingleLineContainer(nodeList[0])
|
||
&& !isHtmlElement(sublist[sublist.length - 1], "BR")) {
|
||
sublist.push(nodeList.shift());
|
||
}
|
||
}
|
||
|
||
// "Wrap sublist. If value is "div" or "p", sibling criteria
|
||
// returns false; otherwise it returns true for an HTML element
|
||
// with local name value and no attributes, and false otherwise.
|
||
// New parent instructions return the result of running
|
||
// createElement(value) on the context object. Then fix disallowed
|
||
// ancestors of the result."
|
||
fixDisallowedAncestors(wrap(sublist,
|
||
["div", "p"].indexOf(value) == - 1
|
||
? function(node) { return isHtmlElement(node, value) && !node.attributes.length }
|
||
: function() { return false },
|
||
function() { return document.createElement(value) }));
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}, indeterm: function() {
|
||
// "If the active range is null, return false."
|
||
if (!getActiveRange()) {
|
||
return false;
|
||
}
|
||
|
||
// "Block-extend the active range, and let new range be the result."
|
||
var newRange = blockExtend(getActiveRange());
|
||
|
||
// "Let node list be all visible editable nodes that are contained in
|
||
// new range and have no children."
|
||
var nodeList = getAllContainedNodes(newRange, function(node) {
|
||
return isVisible(node)
|
||
&& isEditable(node)
|
||
&& !node.hasChildNodes();
|
||
});
|
||
|
||
// "If node list is empty, return false."
|
||
if (!nodeList.length) {
|
||
return false;
|
||
}
|
||
|
||
// "Let type be null."
|
||
var type = null;
|
||
|
||
// "For each node in node list:"
|
||
for (var i = 0; i < nodeList.length; i++) {
|
||
var node = nodeList[i];
|
||
|
||
// "While node's parent is editable and in the same editing host as
|
||
// node, and node is not an HTML element whose local name is a
|
||
// formattable block name, set node to its parent."
|
||
while (isEditable(node.parentNode)
|
||
&& inSameEditingHost(node, node.parentNode)
|
||
&& !isHtmlElement(node, formattableBlockNames)) {
|
||
node = node.parentNode;
|
||
}
|
||
|
||
// "Let current type be the empty string."
|
||
var currentType = "";
|
||
|
||
// "If node is an editable HTML element whose local name is a
|
||
// formattable block name, and node is not the ancestor of a
|
||
// prohibited paragraph child, set current type to node's local
|
||
// name."
|
||
if (isEditable(node)
|
||
&& isHtmlElement(node, formattableBlockNames)
|
||
&& !getDescendants(node).some(isProhibitedParagraphChild)) {
|
||
currentType = node.tagName;
|
||
}
|
||
|
||
// "If type is null, set type to current type."
|
||
if (type === null) {
|
||
type = currentType;
|
||
|
||
// "Otherwise, if type does not equal current type, return true."
|
||
} else if (type != currentType) {
|
||
return true;
|
||
}
|
||
}
|
||
|
||
// "Return false."
|
||
return false;
|
||
}, value: function() {
|
||
// "If the active range is null, return the empty string."
|
||
if (!getActiveRange()) {
|
||
return "";
|
||
}
|
||
|
||
// "Block-extend the active range, and let new range be the result."
|
||
var newRange = blockExtend(getActiveRange());
|
||
|
||
// "Let node be the first visible editable node that is contained in
|
||
// new range and has no children. If there is no such node, return the
|
||
// empty string."
|
||
var nodes = getAllContainedNodes(newRange, function(node) {
|
||
return isVisible(node)
|
||
&& isEditable(node)
|
||
&& !node.hasChildNodes();
|
||
});
|
||
if (!nodes.length) {
|
||
return "";
|
||
}
|
||
var node = nodes[0];
|
||
|
||
// "While node's parent is editable and in the same editing host as
|
||
// node, and node is not an HTML element whose local name is a
|
||
// formattable block name, set node to its parent."
|
||
while (isEditable(node.parentNode)
|
||
&& inSameEditingHost(node, node.parentNode)
|
||
&& !isHtmlElement(node, formattableBlockNames)) {
|
||
node = node.parentNode;
|
||
}
|
||
|
||
// "If node is an editable HTML element whose local name is a
|
||
// formattable block name, and node is not the ancestor of a prohibited
|
||
// paragraph child, return node's local name, converted to ASCII
|
||
// lowercase."
|
||
if (isEditable(node)
|
||
&& isHtmlElement(node, formattableBlockNames)
|
||
&& !getDescendants(node).some(isProhibitedParagraphChild)) {
|
||
return node.tagName.toLowerCase();
|
||
}
|
||
|
||
// "Return the empty string."
|
||
return "";
|
||
}
|
||
};
|
||
|
||
//@}
|
||
///// The forwardDelete command /////
|
||
//@{
|
||
commands.forwarddelete = {
|
||
preservesOverrides: true,
|
||
action: function() {
|
||
// "If the active range is not collapsed, delete the selection and
|
||
// return true."
|
||
if (!getActiveRange().collapsed) {
|
||
deleteSelection();
|
||
return true;
|
||
}
|
||
|
||
// "Canonicalize whitespace at the active range's start."
|
||
canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset);
|
||
|
||
// "Let node and offset be the active range's start node and offset."
|
||
var node = getActiveRange().startContainer;
|
||
var offset = getActiveRange().startOffset;
|
||
|
||
// "Repeat the following steps:"
|
||
while (true) {
|
||
// "If offset is the length of node and node's nextSibling is an
|
||
// editable invisible node, remove node's nextSibling from its
|
||
// parent."
|
||
if (offset == getNodeLength(node)
|
||
&& isEditable(node.nextSibling)
|
||
&& isInvisible(node.nextSibling)) {
|
||
node.parentNode.removeChild(node.nextSibling);
|
||
|
||
// "Otherwise, if node has a child with index offset and that child
|
||
// is an editable invisible node, remove that child from node."
|
||
} else if (offset < node.childNodes.length
|
||
&& isEditable(node.childNodes[offset])
|
||
&& isInvisible(node.childNodes[offset])) {
|
||
node.removeChild(node.childNodes[offset]);
|
||
|
||
// "Otherwise, if offset is the length of node and node is an
|
||
// inline node, or if node is invisible, set offset to one plus the
|
||
// index of node, then set node to its parent."
|
||
} else if ((offset == getNodeLength(node)
|
||
&& isInlineNode(node))
|
||
|| isInvisible(node)) {
|
||
offset = 1 + getNodeIndex(node);
|
||
node = node.parentNode;
|
||
|
||
// "Otherwise, if node has a child with index offset and that child
|
||
// is neither a block node nor a br nor an img nor a collapsed
|
||
// block prop, set node to that child, then set offset to zero."
|
||
} else if (offset < node.childNodes.length
|
||
&& !isBlockNode(node.childNodes[offset])
|
||
&& !isHtmlElement(node.childNodes[offset], ["br", "img"])
|
||
&& !isCollapsedBlockProp(node.childNodes[offset])) {
|
||
node = node.childNodes[offset];
|
||
offset = 0;
|
||
|
||
// "Otherwise, break from this loop."
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
|
||
// "If node is a Text node and offset is not node's length:"
|
||
if (node.nodeType == Node.TEXT_NODE
|
||
&& offset != getNodeLength(node)) {
|
||
// "Let end offset be offset plus one."
|
||
var endOffset = offset + 1;
|
||
|
||
// "While end offset is not node's length and the end offsetth
|
||
// element of node's data has general category M when interpreted
|
||
// as a Unicode code point, add one to end offset."
|
||
//
|
||
// TODO: Not even going to try handling anything beyond the most
|
||
// basic combining marks, since I couldn't find a good list. I
|
||
// special-case a few Hebrew diacritics too to test basic coverage
|
||
// of non-Latin stuff.
|
||
while (endOffset != node.length
|
||
&& /^[\u0300-\u036f\u0591-\u05bd\u05c1\u05c2]$/.test(node.data[endOffset])) {
|
||
endOffset++;
|
||
}
|
||
|
||
// "Call collapse(node, offset) on the context object's Selection."
|
||
getSelection().collapse(node, offset);
|
||
getActiveRange().setStart(node, offset);
|
||
|
||
// "Call extend(node, end offset) on the context object's
|
||
// Selection."
|
||
getSelection().extend(node, endOffset);
|
||
getActiveRange().setEnd(node, endOffset);
|
||
|
||
// "Delete the selection."
|
||
deleteSelection();
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
// "If node is an inline node, return true."
|
||
if (isInlineNode(node)) {
|
||
return true;
|
||
}
|
||
|
||
// "If node has a child with index offset and that child is a br or hr
|
||
// or img, but is not a collapsed block prop:"
|
||
if (offset < node.childNodes.length
|
||
&& isHtmlElement(node.childNodes[offset], ["br", "hr", "img"])
|
||
&& !isCollapsedBlockProp(node.childNodes[offset])) {
|
||
// "Call collapse(node, offset) on the context object's Selection."
|
||
getSelection().collapse(node, offset);
|
||
getActiveRange().setStart(node, offset);
|
||
|
||
// "Call extend(node, offset + 1) on the context object's
|
||
// Selection."
|
||
getSelection().extend(node, offset + 1);
|
||
getActiveRange().setEnd(node, offset + 1);
|
||
|
||
// "Delete the selection."
|
||
deleteSelection();
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
// "Let end node equal node and let end offset equal offset."
|
||
var endNode = node;
|
||
var endOffset = offset;
|
||
|
||
// "If end node has a child with index end offset, and that child is a
|
||
// collapsed block prop, add one to end offset."
|
||
if (endOffset < endNode.childNodes.length
|
||
&& isCollapsedBlockProp(endNode.childNodes[endOffset])) {
|
||
endOffset++;
|
||
}
|
||
|
||
// "Repeat the following steps:"
|
||
while (true) {
|
||
// "If end offset is the length of end node, set end offset to one
|
||
// plus the index of end node and then set end node to its parent."
|
||
if (endOffset == getNodeLength(endNode)) {
|
||
endOffset = 1 + getNodeIndex(endNode);
|
||
endNode = endNode.parentNode;
|
||
|
||
// "Otherwise, if end node has a an editable invisible child with
|
||
// index end offset, remove it from end node."
|
||
} else if (endOffset < endNode.childNodes.length
|
||
&& isEditable(endNode.childNodes[endOffset])
|
||
&& isInvisible(endNode.childNodes[endOffset])) {
|
||
endNode.removeChild(endNode.childNodes[endOffset]);
|
||
|
||
// "Otherwise, break from this loop."
|
||
} else {
|
||
break;
|
||
}
|
||
}
|
||
|
||
// "If the child of end node with index end offset minus one is a
|
||
// table, return true."
|
||
if (isHtmlElement(endNode.childNodes[endOffset - 1], "table")) {
|
||
return true;
|
||
}
|
||
|
||
// "If the child of end node with index end offset is a table:"
|
||
if (isHtmlElement(endNode.childNodes[endOffset], "table")) {
|
||
// "Call collapse(end node, end offset) on the context object's
|
||
// Selection."
|
||
getSelection().collapse(endNode, endOffset);
|
||
getActiveRange().setStart(endNode, endOffset);
|
||
|
||
// "Call extend(end node, end offset + 1) on the context object's
|
||
// Selection."
|
||
getSelection().extend(endNode, endOffset + 1);
|
||
getActiveRange().setEnd(endNode, endOffset + 1);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
// "If offset is the length of node, and the child of end node with
|
||
// index end offset is an hr or br:"
|
||
if (offset == getNodeLength(node)
|
||
&& isHtmlElement(endNode.childNodes[endOffset], ["br", "hr"])) {
|
||
// "Call collapse(end node, end offset) on the context object's
|
||
// Selection."
|
||
getSelection().collapse(endNode, endOffset);
|
||
getActiveRange().setStart(endNode, endOffset);
|
||
|
||
// "Call extend(end node, end offset + 1) on the context object's
|
||
// Selection."
|
||
getSelection().extend(endNode, endOffset + 1);
|
||
getActiveRange().setEnd(endNode, endOffset + 1);
|
||
|
||
// "Delete the selection."
|
||
deleteSelection();
|
||
|
||
// "Call collapse(node, offset) on the Selection."
|
||
getSelection().collapse(node, offset);
|
||
getActiveRange().setStart(node, offset);
|
||
getActiveRange().collapse(true);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
// "While end node has a child with index end offset:"
|
||
while (endOffset < endNode.childNodes.length) {
|
||
// "If end node's child with index end offset is editable and
|
||
// invisible, remove it from end node."
|
||
if (isEditable(endNode.childNodes[endOffset])
|
||
&& isInvisible(endNode.childNodes[endOffset])) {
|
||
endNode.removeChild(endNode.childNodes[endOffset]);
|
||
|
||
// "Otherwise, set end node to its child with index end offset and
|
||
// set end offset to zero."
|
||
} else {
|
||
endNode = endNode.childNodes[endOffset];
|
||
endOffset = 0;
|
||
}
|
||
}
|
||
|
||
// "Call collapse(node, offset) on the context object's Selection."
|
||
getSelection().collapse(node, offset);
|
||
getActiveRange().setStart(node, offset);
|
||
|
||
// "Call extend(end node, end offset) on the context object's
|
||
// Selection."
|
||
getSelection().extend(endNode, endOffset);
|
||
getActiveRange().setEnd(endNode, endOffset);
|
||
|
||
// "Delete the selection."
|
||
deleteSelection();
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
};
|
||
|
||
//@}
|
||
///// The indent command /////
|
||
//@{
|
||
commands.indent = {
|
||
preservesOverrides: true,
|
||
action: function() {
|
||
// "Let items be a list of all lis that are ancestor containers of the
|
||
// active range's start and/or end node."
|
||
//
|
||
// Has to be in tree order, remember!
|
||
var items = [];
|
||
for (var node = getActiveRange().endContainer; node != getActiveRange().commonAncestorContainer; node = node.parentNode) {
|
||
if (isHtmlElement(node, "LI")) {
|
||
items.unshift(node);
|
||
}
|
||
}
|
||
for (var node = getActiveRange().startContainer; node != getActiveRange().commonAncestorContainer; node = node.parentNode) {
|
||
if (isHtmlElement(node, "LI")) {
|
||
items.unshift(node);
|
||
}
|
||
}
|
||
for (var node = getActiveRange().commonAncestorContainer; node; node = node.parentNode) {
|
||
if (isHtmlElement(node, "LI")) {
|
||
items.unshift(node);
|
||
}
|
||
}
|
||
|
||
// "For each item in items, normalize sublists of item."
|
||
for (var i = 0; i < items.length; i++) {
|
||
normalizeSublists(items[i]);
|
||
}
|
||
|
||
// "Block-extend the active range, and let new range be the result."
|
||
var newRange = blockExtend(getActiveRange());
|
||
|
||
// "Let node list be a list of nodes, initially empty."
|
||
var nodeList = [];
|
||
|
||
// "For each node node contained in new range, if node is editable and
|
||
// is an allowed child of "div" or "ol" and if the last member of node
|
||
// list (if any) is not an ancestor of node, append node to node list."
|
||
nodeList = getContainedNodes(newRange, function(node) {
|
||
return isEditable(node)
|
||
&& (isAllowedChild(node, "div")
|
||
|| isAllowedChild(node, "ol"));
|
||
});
|
||
|
||
// "If the first visible member of node list is an li whose parent is
|
||
// an ol or ul:"
|
||
if (isHtmlElement(nodeList.filter(isVisible)[0], "li")
|
||
&& isHtmlElement(nodeList.filter(isVisible)[0].parentNode, ["ol", "ul"])) {
|
||
// "Let sibling be node list's first visible member's
|
||
// previousSibling."
|
||
var sibling = nodeList.filter(isVisible)[0].previousSibling;
|
||
|
||
// "While sibling is invisible, set sibling to its
|
||
// previousSibling."
|
||
while (isInvisible(sibling)) {
|
||
sibling = sibling.previousSibling;
|
||
}
|
||
|
||
// "If sibling is an li, normalize sublists of sibling."
|
||
if (isHtmlElement(sibling, "li")) {
|
||
normalizeSublists(sibling);
|
||
}
|
||
}
|
||
|
||
// "While node list is not empty:"
|
||
while (nodeList.length) {
|
||
// "Let sublist be a list of nodes, initially empty."
|
||
var sublist = [];
|
||
|
||
// "Remove the first member of node list and append it to sublist."
|
||
sublist.push(nodeList.shift());
|
||
|
||
// "While the first member of node list is the nextSibling of the
|
||
// last member of sublist, remove the first member of node list and
|
||
// append it to sublist."
|
||
while (nodeList.length
|
||
&& nodeList[0] == sublist[sublist.length - 1].nextSibling) {
|
||
sublist.push(nodeList.shift());
|
||
}
|
||
|
||
// "Indent sublist."
|
||
indentNodes(sublist);
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
};
|
||
|
||
//@}
|
||
///// The insertHorizontalRule command /////
|
||
//@{
|
||
commands.inserthorizontalrule = {
|
||
preservesOverrides: true,
|
||
action: function() {
|
||
// "Let start node, start offset, end node, and end offset be the
|
||
// active range's start and end nodes and offsets."
|
||
var startNode = getActiveRange().startContainer;
|
||
var startOffset = getActiveRange().startOffset;
|
||
var endNode = getActiveRange().endContainer;
|
||
var endOffset = getActiveRange().endOffset;
|
||
|
||
// "While start offset is 0 and start node's parent is not null, set
|
||
// start offset to start node's index, then set start node to its
|
||
// parent."
|
||
while (startOffset == 0
|
||
&& startNode.parentNode) {
|
||
startOffset = getNodeIndex(startNode);
|
||
startNode = startNode.parentNode;
|
||
}
|
||
|
||
// "While end offset is end node's length, and end node's parent is not
|
||
// null, set end offset to one plus end node's index, then set end node
|
||
// to its parent."
|
||
while (endOffset == getNodeLength(endNode)
|
||
&& endNode.parentNode) {
|
||
endOffset = 1 + getNodeIndex(endNode);
|
||
endNode = endNode.parentNode;
|
||
}
|
||
|
||
// "Call collapse(start node, start offset) on the context object's
|
||
// Selection."
|
||
getSelection().collapse(startNode, startOffset);
|
||
getActiveRange().setStart(startNode, startOffset);
|
||
|
||
// "Call extend(end node, end offset) on the context object's
|
||
// Selection."
|
||
getSelection().extend(endNode, endOffset);
|
||
getActiveRange().setEnd(endNode, endOffset);
|
||
|
||
// "Delete the selection, with block merging false."
|
||
deleteSelection({blockMerging: false});
|
||
|
||
// "If the active range's start node is neither editable nor an editing
|
||
// host, return true."
|
||
if (!isEditable(getActiveRange().startContainer)
|
||
&& !isEditingHost(getActiveRange().startContainer)) {
|
||
return true;
|
||
}
|
||
|
||
// "If the active range's start node is a Text node and its start
|
||
// offset is zero, call collapse() on the context object's Selection,
|
||
// with first argument the active range's start node's parent and
|
||
// second argument the active range's start node's index."
|
||
if (getActiveRange().startContainer.nodeType == Node.TEXT_NODE
|
||
&& getActiveRange().startOffset == 0) {
|
||
var newNode = getActiveRange().startContainer.parentNode;
|
||
var newOffset = getNodeIndex(getActiveRange().startContainer);
|
||
getSelection().collapse(newNode, newOffset);
|
||
getActiveRange().setStart(newNode, newOffset);
|
||
getActiveRange().collapse(true);
|
||
}
|
||
|
||
// "If the active range's start node is a Text node and its start
|
||
// offset is the length of its start node, call collapse() on the
|
||
// context object's Selection, with first argument the active range's
|
||
// start node's parent, and the second argument one plus the active
|
||
// range's start node's index."
|
||
if (getActiveRange().startContainer.nodeType == Node.TEXT_NODE
|
||
&& getActiveRange().startOffset == getNodeLength(getActiveRange().startContainer)) {
|
||
var newNode = getActiveRange().startContainer.parentNode;
|
||
var newOffset = 1 + getNodeIndex(getActiveRange().startContainer);
|
||
getSelection().collapse(newNode, newOffset);
|
||
getActiveRange().setStart(newNode, newOffset);
|
||
getActiveRange().collapse(true);
|
||
}
|
||
|
||
// "Let hr be the result of calling createElement("hr") on the
|
||
// context object."
|
||
var hr = document.createElement("hr");
|
||
|
||
// "Run insertNode(hr) on the active range."
|
||
getActiveRange().insertNode(hr);
|
||
|
||
// "Fix disallowed ancestors of hr."
|
||
fixDisallowedAncestors(hr);
|
||
|
||
// "Run collapse() on the context object's Selection, with first
|
||
// argument hr's parent and the second argument equal to one plus hr's
|
||
// index."
|
||
getSelection().collapse(hr.parentNode, 1 + getNodeIndex(hr));
|
||
getActiveRange().setStart(hr.parentNode, 1 + getNodeIndex(hr));
|
||
getActiveRange().collapse(true);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
};
|
||
|
||
//@}
|
||
///// The insertHTML command /////
|
||
//@{
|
||
commands.inserthtml = {
|
||
preservesOverrides: true,
|
||
action: function(value) {
|
||
// "Delete the selection."
|
||
deleteSelection();
|
||
|
||
// "If the active range's start node is neither editable nor an editing
|
||
// host, return true."
|
||
if (!isEditable(getActiveRange().startContainer)
|
||
&& !isEditingHost(getActiveRange().startContainer)) {
|
||
return true;
|
||
}
|
||
|
||
// "Let frag be the result of calling createContextualFragment(value)
|
||
// on the active range."
|
||
var frag = getActiveRange().createContextualFragment(value);
|
||
|
||
// "Let last child be the lastChild of frag."
|
||
var lastChild = frag.lastChild;
|
||
|
||
// "If last child is null, return true."
|
||
if (!lastChild) {
|
||
return true;
|
||
}
|
||
|
||
// "Let descendants be all descendants of frag."
|
||
var descendants = getDescendants(frag);
|
||
|
||
// "If the active range's start node is a block node:"
|
||
if (isBlockNode(getActiveRange().startContainer)) {
|
||
// "Let collapsed block props be all editable collapsed block prop
|
||
// children of the active range's start node that have index
|
||
// greater than or equal to the active range's start offset."
|
||
//
|
||
// "For each node in collapsed block props, remove node from its
|
||
// parent."
|
||
[].filter.call(getActiveRange().startContainer.childNodes, function(node) {
|
||
return isEditable(node)
|
||
&& isCollapsedBlockProp(node)
|
||
&& getNodeIndex(node) >= getActiveRange().startOffset;
|
||
}).forEach(function(node) {
|
||
node.parentNode.removeChild(node);
|
||
});
|
||
}
|
||
|
||
// "Call insertNode(frag) on the active range."
|
||
getActiveRange().insertNode(frag);
|
||
|
||
// "If the active range's start node is a block node with no visible
|
||
// children, call createElement("br") on the context object and append
|
||
// the result as the last child of the active range's start node."
|
||
if (isBlockNode(getActiveRange().startContainer)
|
||
&& ![].some.call(getActiveRange().startContainer.childNodes, isVisible)) {
|
||
getActiveRange().startContainer.appendChild(document.createElement("br"));
|
||
}
|
||
|
||
// "Call collapse() on the context object's Selection, with last
|
||
// child's parent as the first argument and one plus its index as the
|
||
// second."
|
||
getActiveRange().setStart(lastChild.parentNode, 1 + getNodeIndex(lastChild));
|
||
getActiveRange().setEnd(lastChild.parentNode, 1 + getNodeIndex(lastChild));
|
||
|
||
// "Fix disallowed ancestors of each member of descendants."
|
||
for (var i = 0; i < descendants.length; i++) {
|
||
fixDisallowedAncestors(descendants[i]);
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
};
|
||
|
||
//@}
|
||
///// The insertImage command /////
|
||
//@{
|
||
commands.insertimage = {
|
||
preservesOverrides: true,
|
||
action: function(value) {
|
||
// "If value is the empty string, return false."
|
||
if (value === "") {
|
||
return false;
|
||
}
|
||
|
||
// "Delete the selection, with strip wrappers false."
|
||
deleteSelection({stripWrappers: false});
|
||
|
||
// "Let range be the active range."
|
||
var range = getActiveRange();
|
||
|
||
// "If the active range's start node is neither editable nor an editing
|
||
// host, return true."
|
||
if (!isEditable(getActiveRange().startContainer)
|
||
&& !isEditingHost(getActiveRange().startContainer)) {
|
||
return true;
|
||
}
|
||
|
||
// "If range's start node is a block node whose sole child is a br, and
|
||
// its start offset is 0, remove its start node's child from it."
|
||
if (isBlockNode(range.startContainer)
|
||
&& range.startContainer.childNodes.length == 1
|
||
&& isHtmlElement(range.startContainer.firstChild, "br")
|
||
&& range.startOffset == 0) {
|
||
range.startContainer.removeChild(range.startContainer.firstChild);
|
||
}
|
||
|
||
// "Let img be the result of calling createElement("img") on the
|
||
// context object."
|
||
var img = document.createElement("img");
|
||
|
||
// "Run setAttribute("src", value) on img."
|
||
img.setAttribute("src", value);
|
||
|
||
// "Run insertNode(img) on the range."
|
||
range.insertNode(img);
|
||
|
||
// "Run collapse() on the Selection, with first argument equal to the
|
||
// parent of img and the second argument equal to one plus the index of
|
||
// img."
|
||
//
|
||
// Not everyone actually supports collapse(), so we do it manually
|
||
// instead. Also, we need to modify the actual range we're given as
|
||
// well, for the sake of autoimplementation.html's range-filling-in.
|
||
range.setStart(img.parentNode, 1 + getNodeIndex(img));
|
||
range.setEnd(img.parentNode, 1 + getNodeIndex(img));
|
||
getSelection().removeAllRanges();
|
||
getSelection().addRange(range);
|
||
|
||
// IE adds width and height attributes for some reason, so remove those
|
||
// to actually do what the spec says.
|
||
img.removeAttribute("width");
|
||
img.removeAttribute("height");
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
};
|
||
|
||
//@}
|
||
///// The insertLineBreak command /////
|
||
//@{
|
||
commands.insertlinebreak = {
|
||
preservesOverrides: true,
|
||
action: function(value) {
|
||
// "Delete the selection, with strip wrappers false."
|
||
deleteSelection({stripWrappers: false});
|
||
|
||
// "If the active range's start node is neither editable nor an editing
|
||
// host, return true."
|
||
if (!isEditable(getActiveRange().startContainer)
|
||
&& !isEditingHost(getActiveRange().startContainer)) {
|
||
return true;
|
||
}
|
||
|
||
// "If the active range's start node is an Element, and "br" is not an
|
||
// allowed child of it, return true."
|
||
if (getActiveRange().startContainer.nodeType == Node.ELEMENT_NODE
|
||
&& !isAllowedChild("br", getActiveRange().startContainer)) {
|
||
return true;
|
||
}
|
||
|
||
// "If the active range's start node is not an Element, and "br" is not
|
||
// an allowed child of the active range's start node's parent, return
|
||
// true."
|
||
if (getActiveRange().startContainer.nodeType != Node.ELEMENT_NODE
|
||
&& !isAllowedChild("br", getActiveRange().startContainer.parentNode)) {
|
||
return true;
|
||
}
|
||
|
||
// "If the active range's start node is a Text node and its start
|
||
// offset is zero, call collapse() on the context object's Selection,
|
||
// with first argument equal to the active range's start node's parent
|
||
// and second argument equal to the active range's start node's index."
|
||
if (getActiveRange().startContainer.nodeType == Node.TEXT_NODE
|
||
&& getActiveRange().startOffset == 0) {
|
||
var newNode = getActiveRange().startContainer.parentNode;
|
||
var newOffset = getNodeIndex(getActiveRange().startContainer);
|
||
getSelection().collapse(newNode, newOffset);
|
||
getActiveRange().setStart(newNode, newOffset);
|
||
getActiveRange().setEnd(newNode, newOffset);
|
||
}
|
||
|
||
// "If the active range's start node is a Text node and its start
|
||
// offset is the length of its start node, call collapse() on the
|
||
// context object's Selection, with first argument equal to the active
|
||
// range's start node's parent and second argument equal to one plus
|
||
// the active range's start node's index."
|
||
if (getActiveRange().startContainer.nodeType == Node.TEXT_NODE
|
||
&& getActiveRange().startOffset == getNodeLength(getActiveRange().startContainer)) {
|
||
var newNode = getActiveRange().startContainer.parentNode;
|
||
var newOffset = 1 + getNodeIndex(getActiveRange().startContainer);
|
||
getSelection().collapse(newNode, newOffset);
|
||
getActiveRange().setStart(newNode, newOffset);
|
||
getActiveRange().setEnd(newNode, newOffset);
|
||
}
|
||
|
||
// "Let br be the result of calling createElement("br") on the context
|
||
// object."
|
||
var br = document.createElement("br");
|
||
|
||
// "Call insertNode(br) on the active range."
|
||
getActiveRange().insertNode(br);
|
||
|
||
// "Call collapse() on the context object's Selection, with br's parent
|
||
// as the first argument and one plus br's index as the second
|
||
// argument."
|
||
getSelection().collapse(br.parentNode, 1 + getNodeIndex(br));
|
||
getActiveRange().setStart(br.parentNode, 1 + getNodeIndex(br));
|
||
getActiveRange().setEnd(br.parentNode, 1 + getNodeIndex(br));
|
||
|
||
// "If br is a collapsed line break, call createElement("br") on the
|
||
// context object and let extra br be the result, then call
|
||
// insertNode(extra br) on the active range."
|
||
if (isCollapsedLineBreak(br)) {
|
||
getActiveRange().insertNode(document.createElement("br"));
|
||
|
||
// Compensate for nonstandard implementations of insertNode
|
||
getSelection().collapse(br.parentNode, 1 + getNodeIndex(br));
|
||
getActiveRange().setStart(br.parentNode, 1 + getNodeIndex(br));
|
||
getActiveRange().setEnd(br.parentNode, 1 + getNodeIndex(br));
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
};
|
||
|
||
//@}
|
||
///// The insertOrderedList command /////
|
||
//@{
|
||
commands.insertorderedlist = {
|
||
preservesOverrides: true,
|
||
// "Toggle lists with tag name "ol", then return true."
|
||
action: function() { toggleLists("ol"); return true },
|
||
// "True if the selection's list state is "mixed" or "mixed ol", false
|
||
// otherwise."
|
||
indeterm: function() { return /^mixed( ol)?$/.test(getSelectionListState()) },
|
||
// "True if the selection's list state is "ol", false otherwise."
|
||
state: function() { return getSelectionListState() == "ol" },
|
||
};
|
||
|
||
//@}
|
||
///// The insertParagraph command /////
|
||
//@{
|
||
commands.insertparagraph = {
|
||
preservesOverrides: true,
|
||
action: function() {
|
||
// "Delete the selection."
|
||
deleteSelection();
|
||
|
||
// "If the active range's start node is neither editable nor an editing
|
||
// host, return true."
|
||
if (!isEditable(getActiveRange().startContainer)
|
||
&& !isEditingHost(getActiveRange().startContainer)) {
|
||
return true;
|
||
}
|
||
|
||
// "Let node and offset be the active range's start node and offset."
|
||
var node = getActiveRange().startContainer;
|
||
var offset = getActiveRange().startOffset;
|
||
|
||
// "If node is a Text node, and offset is neither 0 nor the length of
|
||
// node, call splitText(offset) on node."
|
||
if (node.nodeType == Node.TEXT_NODE
|
||
&& offset != 0
|
||
&& offset != getNodeLength(node)) {
|
||
node.splitText(offset);
|
||
}
|
||
|
||
// "If node is a Text node and offset is its length, set offset to one
|
||
// plus the index of node, then set node to its parent."
|
||
if (node.nodeType == Node.TEXT_NODE
|
||
&& offset == getNodeLength(node)) {
|
||
offset = 1 + getNodeIndex(node);
|
||
node = node.parentNode;
|
||
}
|
||
|
||
// "If node is a Text or Comment node, set offset to the index of node,
|
||
// then set node to its parent."
|
||
if (node.nodeType == Node.TEXT_NODE
|
||
|| node.nodeType == Node.COMMENT_NODE) {
|
||
offset = getNodeIndex(node);
|
||
node = node.parentNode;
|
||
}
|
||
|
||
// "Call collapse(node, offset) on the context object's Selection."
|
||
getSelection().collapse(node, offset);
|
||
getActiveRange().setStart(node, offset);
|
||
getActiveRange().setEnd(node, offset);
|
||
|
||
// "Let container equal node."
|
||
var container = node;
|
||
|
||
// "While container is not a single-line container, and container's
|
||
// parent is editable and in the same editing host as node, set
|
||
// container to its parent."
|
||
while (!isSingleLineContainer(container)
|
||
&& isEditable(container.parentNode)
|
||
&& inSameEditingHost(node, container.parentNode)) {
|
||
container = container.parentNode;
|
||
}
|
||
|
||
// "If container is an editable single-line container in the same
|
||
// editing host as node, and its local name is "p" or "div":"
|
||
if (isEditable(container)
|
||
&& isSingleLineContainer(container)
|
||
&& inSameEditingHost(node, container.parentNode)
|
||
&& (container.tagName == "P" || container.tagName == "DIV")) {
|
||
// "Let outer container equal container."
|
||
var outerContainer = container;
|
||
|
||
// "While outer container is not a dd or dt or li, and outer
|
||
// container's parent is editable, set outer container to its
|
||
// parent."
|
||
while (!isHtmlElement(outerContainer, ["dd", "dt", "li"])
|
||
&& isEditable(outerContainer.parentNode)) {
|
||
outerContainer = outerContainer.parentNode;
|
||
}
|
||
|
||
// "If outer container is a dd or dt or li, set container to outer
|
||
// container."
|
||
if (isHtmlElement(outerContainer, ["dd", "dt", "li"])) {
|
||
container = outerContainer;
|
||
}
|
||
}
|
||
|
||
// "If container is not editable or not in the same editing host as
|
||
// node or is not a single-line container:"
|
||
if (!isEditable(container)
|
||
|| !inSameEditingHost(container, node)
|
||
|| !isSingleLineContainer(container)) {
|
||
// "Let tag be the default single-line container name."
|
||
var tag = defaultSingleLineContainerName;
|
||
|
||
// "Block-extend the active range, and let new range be the
|
||
// result."
|
||
var newRange = blockExtend(getActiveRange());
|
||
|
||
// "Let node list be a list of nodes, initially empty."
|
||
//
|
||
// "Append to node list the first node in tree order that is
|
||
// contained in new range and is an allowed child of "p", if any."
|
||
var nodeList = getContainedNodes(newRange, function(node) { return isAllowedChild(node, "p") })
|
||
.slice(0, 1);
|
||
|
||
// "If node list is empty:"
|
||
if (!nodeList.length) {
|
||
// "If tag is not an allowed child of the active range's start
|
||
// node, return true."
|
||
if (!isAllowedChild(tag, getActiveRange().startContainer)) {
|
||
return true;
|
||
}
|
||
|
||
// "Set container to the result of calling createElement(tag)
|
||
// on the context object."
|
||
container = document.createElement(tag);
|
||
|
||
// "Call insertNode(container) on the active range."
|
||
getActiveRange().insertNode(container);
|
||
|
||
// "Call createElement("br") on the context object, and append
|
||
// the result as the last child of container."
|
||
container.appendChild(document.createElement("br"));
|
||
|
||
// "Call collapse(container, 0) on the context object's
|
||
// Selection."
|
||
getSelection().collapse(container, 0);
|
||
getActiveRange().setStart(container, 0);
|
||
getActiveRange().setEnd(container, 0);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
// "While the nextSibling of the last member of node list is not
|
||
// null and is an allowed child of "p", append it to node list."
|
||
while (nodeList[nodeList.length - 1].nextSibling
|
||
&& isAllowedChild(nodeList[nodeList.length - 1].nextSibling, "p")) {
|
||
nodeList.push(nodeList[nodeList.length - 1].nextSibling);
|
||
}
|
||
|
||
// "Wrap node list, with sibling criteria returning false and new
|
||
// parent instructions returning the result of calling
|
||
// createElement(tag) on the context object. Set container to the
|
||
// result."
|
||
container = wrap(nodeList,
|
||
function() { return false },
|
||
function() { return document.createElement(tag) }
|
||
);
|
||
}
|
||
|
||
// "If container's local name is "address", "listing", or "pre":"
|
||
if (container.tagName == "ADDRESS"
|
||
|| container.tagName == "LISTING"
|
||
|| container.tagName == "PRE") {
|
||
// "Let br be the result of calling createElement("br") on the
|
||
// context object."
|
||
var br = document.createElement("br");
|
||
|
||
// "Call insertNode(br) on the active range."
|
||
getActiveRange().insertNode(br);
|
||
|
||
// "Call collapse(node, offset + 1) on the context object's
|
||
// Selection."
|
||
getSelection().collapse(node, offset + 1);
|
||
getActiveRange().setStart(node, offset + 1);
|
||
getActiveRange().setEnd(node, offset + 1);
|
||
|
||
// "If br is the last descendant of container, let br be the result
|
||
// of calling createElement("br") on the context object, then call
|
||
// insertNode(br) on the active range."
|
||
//
|
||
// Work around browser bugs: some browsers select the
|
||
// newly-inserted node, not per spec.
|
||
if (!isDescendant(nextNode(br), container)) {
|
||
getActiveRange().insertNode(document.createElement("br"));
|
||
getSelection().collapse(node, offset + 1);
|
||
getActiveRange().setEnd(node, offset + 1);
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
// "If container's local name is "li", "dt", or "dd"; and either it has
|
||
// no children or it has a single child and that child is a br:"
|
||
if (["LI", "DT", "DD"].indexOf(container.tagName) != -1
|
||
&& (!container.hasChildNodes()
|
||
|| (container.childNodes.length == 1
|
||
&& isHtmlElement(container.firstChild, "br")))) {
|
||
// "Split the parent of the one-node list consisting of container."
|
||
splitParent([container]);
|
||
|
||
// "If container has no children, call createElement("br") on the
|
||
// context object and append the result as the last child of
|
||
// container."
|
||
if (!container.hasChildNodes()) {
|
||
container.appendChild(document.createElement("br"));
|
||
}
|
||
|
||
// "If container is a dd or dt, and it is not an allowed child of
|
||
// any of its ancestors in the same editing host, set the tag name
|
||
// of container to the default single-line container name and let
|
||
// container be the result."
|
||
if (isHtmlElement(container, ["dd", "dt"])
|
||
&& getAncestors(container).every(function(ancestor) {
|
||
return !inSameEditingHost(container, ancestor)
|
||
|| !isAllowedChild(container, ancestor)
|
||
})) {
|
||
container = setTagName(container, defaultSingleLineContainerName);
|
||
}
|
||
|
||
// "Fix disallowed ancestors of container."
|
||
fixDisallowedAncestors(container);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
// "Let new line range be a new range whose start is the same as
|
||
// the active range's, and whose end is (container, length of
|
||
// container)."
|
||
var newLineRange = document.createRange();
|
||
newLineRange.setStart(getActiveRange().startContainer, getActiveRange().startOffset);
|
||
newLineRange.setEnd(container, getNodeLength(container));
|
||
|
||
// "While new line range's start offset is zero and its start node is
|
||
// not a prohibited paragraph child, set its start to (parent of start
|
||
// node, index of start node)."
|
||
while (newLineRange.startOffset == 0
|
||
&& !isProhibitedParagraphChild(newLineRange.startContainer)) {
|
||
newLineRange.setStart(newLineRange.startContainer.parentNode, getNodeIndex(newLineRange.startContainer));
|
||
}
|
||
|
||
// "While new line range's start offset is the length of its start node
|
||
// and its start node is not a prohibited paragraph child, set its
|
||
// start to (parent of start node, 1 + index of start node)."
|
||
while (newLineRange.startOffset == getNodeLength(newLineRange.startContainer)
|
||
&& !isProhibitedParagraphChild(newLineRange.startContainer)) {
|
||
newLineRange.setStart(newLineRange.startContainer.parentNode, 1 + getNodeIndex(newLineRange.startContainer));
|
||
}
|
||
|
||
// "Let end of line be true if new line range contains either nothing
|
||
// or a single br, and false otherwise."
|
||
var containedInNewLineRange = getContainedNodes(newLineRange);
|
||
var endOfLine = !containedInNewLineRange.length
|
||
|| (containedInNewLineRange.length == 1
|
||
&& isHtmlElement(containedInNewLineRange[0], "br"));
|
||
|
||
// "If the local name of container is "h1", "h2", "h3", "h4", "h5", or
|
||
// "h6", and end of line is true, let new container name be the default
|
||
// single-line container name."
|
||
var newContainerName;
|
||
if (/^H[1-6]$/.test(container.tagName)
|
||
&& endOfLine) {
|
||
newContainerName = defaultSingleLineContainerName;
|
||
|
||
// "Otherwise, if the local name of container is "dt" and end of line
|
||
// is true, let new container name be "dd"."
|
||
} else if (container.tagName == "DT"
|
||
&& endOfLine) {
|
||
newContainerName = "dd";
|
||
|
||
// "Otherwise, if the local name of container is "dd" and end of line
|
||
// is true, let new container name be "dt"."
|
||
} else if (container.tagName == "DD"
|
||
&& endOfLine) {
|
||
newContainerName = "dt";
|
||
|
||
// "Otherwise, let new container name be the local name of container."
|
||
} else {
|
||
newContainerName = container.tagName.toLowerCase();
|
||
}
|
||
|
||
// "Let new container be the result of calling createElement(new
|
||
// container name) on the context object."
|
||
var newContainer = document.createElement(newContainerName);
|
||
|
||
// "Copy all attributes of container to new container."
|
||
for (var i = 0; i < container.attributes.length; i++) {
|
||
newContainer.setAttributeNS(container.attributes[i].namespaceURI, container.attributes[i].name, container.attributes[i].value);
|
||
}
|
||
|
||
// "If new container has an id attribute, unset it."
|
||
newContainer.removeAttribute("id");
|
||
|
||
// "Insert new container into the parent of container immediately after
|
||
// container."
|
||
container.parentNode.insertBefore(newContainer, container.nextSibling);
|
||
|
||
// "Let contained nodes be all nodes contained in new line range."
|
||
var containedNodes = getAllContainedNodes(newLineRange);
|
||
|
||
// "Let frag be the result of calling extractContents() on new line
|
||
// range."
|
||
var frag = newLineRange.extractContents();
|
||
|
||
// "Unset the id attribute (if any) of each Element descendant of frag
|
||
// that is not in contained nodes."
|
||
var descendants = getDescendants(frag);
|
||
for (var i = 0; i < descendants.length; i++) {
|
||
if (descendants[i].nodeType == Node.ELEMENT_NODE
|
||
&& containedNodes.indexOf(descendants[i]) == -1) {
|
||
descendants[i].removeAttribute("id");
|
||
}
|
||
}
|
||
|
||
// "Call appendChild(frag) on new container."
|
||
newContainer.appendChild(frag);
|
||
|
||
// "While container's lastChild is a prohibited paragraph child, set
|
||
// container to its lastChild."
|
||
while (isProhibitedParagraphChild(container.lastChild)) {
|
||
container = container.lastChild;
|
||
}
|
||
|
||
// "While new container's lastChild is a prohibited paragraph child,
|
||
// set new container to its lastChild."
|
||
while (isProhibitedParagraphChild(newContainer.lastChild)) {
|
||
newContainer = newContainer.lastChild;
|
||
}
|
||
|
||
// "If container has no visible children, call createElement("br") on
|
||
// the context object, and append the result as the last child of
|
||
// container."
|
||
if (![].some.call(container.childNodes, isVisible)) {
|
||
container.appendChild(document.createElement("br"));
|
||
}
|
||
|
||
// "If new container has no visible children, call createElement("br")
|
||
// on the context object, and append the result as the last child of
|
||
// new container."
|
||
if (![].some.call(newContainer.childNodes, isVisible)) {
|
||
newContainer.appendChild(document.createElement("br"));
|
||
}
|
||
|
||
// "Call collapse(new container, 0) on the context object's Selection."
|
||
getSelection().collapse(newContainer, 0);
|
||
getActiveRange().setStart(newContainer, 0);
|
||
getActiveRange().setEnd(newContainer, 0);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
};
|
||
|
||
//@}
|
||
///// The insertText command /////
|
||
//@{
|
||
commands.inserttext = {
|
||
action: function(value) {
|
||
// "Delete the selection, with strip wrappers false."
|
||
deleteSelection({stripWrappers: false});
|
||
|
||
// "If the active range's start node is neither editable nor an editing
|
||
// host, return true."
|
||
if (!isEditable(getActiveRange().startContainer)
|
||
&& !isEditingHost(getActiveRange().startContainer)) {
|
||
return true;
|
||
}
|
||
|
||
// "If value's length is greater than one:"
|
||
if (value.length > 1) {
|
||
// "For each element el in value, take the action for the
|
||
// insertText command, with value equal to el."
|
||
for (var i = 0; i < value.length; i++) {
|
||
commands.inserttext.action(value[i]);
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
|
||
// "If value is the empty string, return true."
|
||
if (value == "") {
|
||
return true;
|
||
}
|
||
|
||
// "If value is a newline (U+00A0), take the action for the
|
||
// insertParagraph command and return true."
|
||
if (value == "\n") {
|
||
commands.insertparagraph.action();
|
||
return true;
|
||
}
|
||
|
||
// "Let node and offset be the active range's start node and offset."
|
||
var node = getActiveRange().startContainer;
|
||
var offset = getActiveRange().startOffset;
|
||
|
||
// "If node has a child whose index is offset − 1, and that child is a
|
||
// Text node, set node to that child, then set offset to node's
|
||
// length."
|
||
if (0 <= offset - 1
|
||
&& offset - 1 < node.childNodes.length
|
||
&& node.childNodes[offset - 1].nodeType == Node.TEXT_NODE) {
|
||
node = node.childNodes[offset - 1];
|
||
offset = getNodeLength(node);
|
||
}
|
||
|
||
// "If node has a child whose index is offset, and that child is a Text
|
||
// node, set node to that child, then set offset to zero."
|
||
if (0 <= offset
|
||
&& offset < node.childNodes.length
|
||
&& node.childNodes[offset].nodeType == Node.TEXT_NODE) {
|
||
node = node.childNodes[offset];
|
||
offset = 0;
|
||
}
|
||
|
||
// "Record current overrides, and let overrides be the result."
|
||
var overrides = recordCurrentOverrides();
|
||
|
||
// "Call collapse(node, offset) on the context object's Selection."
|
||
getSelection().collapse(node, offset);
|
||
getActiveRange().setStart(node, offset);
|
||
getActiveRange().setEnd(node, offset);
|
||
|
||
// "Canonicalize whitespace at (node, offset)."
|
||
canonicalizeWhitespace(node, offset);
|
||
|
||
// "Let (node, offset) be the active range's start."
|
||
node = getActiveRange().startContainer;
|
||
offset = getActiveRange().startOffset;
|
||
|
||
// "If node is a Text node:"
|
||
if (node.nodeType == Node.TEXT_NODE) {
|
||
// "Call insertData(offset, value) on node."
|
||
node.insertData(offset, value);
|
||
|
||
// "Call collapse(node, offset) on the context object's Selection."
|
||
getSelection().collapse(node, offset);
|
||
getActiveRange().setStart(node, offset);
|
||
|
||
// "Call extend(node, offset + 1) on the context object's
|
||
// Selection."
|
||
//
|
||
// Work around WebKit bug: the extend() can throw if the text we're
|
||
// adding is trailing whitespace.
|
||
try { getSelection().extend(node, offset + 1); } catch(e) {}
|
||
getActiveRange().setEnd(node, offset + 1);
|
||
|
||
// "Otherwise:"
|
||
} else {
|
||
// "If node has only one child, which is a collapsed line break,
|
||
// remove its child from it."
|
||
//
|
||
// FIXME: IE incorrectly returns false here instead of true
|
||
// sometimes?
|
||
if (node.childNodes.length == 1
|
||
&& isCollapsedLineBreak(node.firstChild)) {
|
||
node.removeChild(node.firstChild);
|
||
}
|
||
|
||
// "Let text be the result of calling createTextNode(value) on the
|
||
// context object."
|
||
var text = document.createTextNode(value);
|
||
|
||
// "Call insertNode(text) on the active range."
|
||
getActiveRange().insertNode(text);
|
||
|
||
// "Call collapse(text, 0) on the context object's Selection."
|
||
getSelection().collapse(text, 0);
|
||
getActiveRange().setStart(text, 0);
|
||
|
||
// "Call extend(text, 1) on the context object's Selection."
|
||
getSelection().extend(text, 1);
|
||
getActiveRange().setEnd(text, 1);
|
||
}
|
||
|
||
// "Restore states and values from overrides."
|
||
restoreStatesAndValues(overrides);
|
||
|
||
// "Canonicalize whitespace at the active range's start, with fix
|
||
// collapsed space false."
|
||
canonicalizeWhitespace(getActiveRange().startContainer, getActiveRange().startOffset, false);
|
||
|
||
// "Canonicalize whitespace at the active range's end, with fix
|
||
// collapsed space false."
|
||
canonicalizeWhitespace(getActiveRange().endContainer, getActiveRange().endOffset, false);
|
||
|
||
// "If value is a space character, autolink the active range's start."
|
||
if (/^[ \t\n\f\r]$/.test(value)) {
|
||
autolink(getActiveRange().startContainer, getActiveRange().startOffset);
|
||
}
|
||
|
||
// "Call collapseToEnd() on the context object's Selection."
|
||
//
|
||
// Work around WebKit bug: sometimes it blows up the selection and
|
||
// throws, which we don't want.
|
||
try { getSelection().collapseToEnd(); } catch(e) {}
|
||
getActiveRange().collapse(false);
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
};
|
||
|
||
//@}
|
||
///// The insertUnorderedList command /////
|
||
//@{
|
||
commands.insertunorderedlist = {
|
||
preservesOverrides: true,
|
||
// "Toggle lists with tag name "ul", then return true."
|
||
action: function() { toggleLists("ul"); return true },
|
||
// "True if the selection's list state is "mixed" or "mixed ul", false
|
||
// otherwise."
|
||
indeterm: function() { return /^mixed( ul)?$/.test(getSelectionListState()) },
|
||
// "True if the selection's list state is "ul", false otherwise."
|
||
state: function() { return getSelectionListState() == "ul" },
|
||
};
|
||
|
||
//@}
|
||
///// The justifyCenter command /////
|
||
//@{
|
||
commands.justifycenter = {
|
||
preservesOverrides: true,
|
||
// "Justify the selection with alignment "center", then return true."
|
||
action: function() { justifySelection("center"); return true },
|
||
indeterm: function() {
|
||
// "Return false if the active range is null. Otherwise, block-extend
|
||
// the active range. Return true if among visible editable nodes that
|
||
// are contained in the result and have no children, at least one has
|
||
// alignment value "center" and at least one does not. Otherwise return
|
||
// false."
|
||
if (!getActiveRange()) {
|
||
return false;
|
||
}
|
||
var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
||
return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
||
});
|
||
return nodes.some(function(node) { return getAlignmentValue(node) == "center" })
|
||
&& nodes.some(function(node) { return getAlignmentValue(node) != "center" });
|
||
}, state: function() {
|
||
// "Return false if the active range is null. Otherwise, block-extend
|
||
// the active range. Return true if there is at least one visible
|
||
// editable node that is contained in the result and has no children,
|
||
// and all such nodes have alignment value "center". Otherwise return
|
||
// false."
|
||
if (!getActiveRange()) {
|
||
return false;
|
||
}
|
||
var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
||
return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
||
});
|
||
return nodes.length
|
||
&& nodes.every(function(node) { return getAlignmentValue(node) == "center" });
|
||
}, value: function() {
|
||
// "Return the empty string if the active range is null. Otherwise,
|
||
// block-extend the active range, and return the alignment value of the
|
||
// first visible editable node that is contained in the result and has
|
||
// no children. If there is no such node, return "left"."
|
||
if (!getActiveRange()) {
|
||
return "";
|
||
}
|
||
var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
||
return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
||
});
|
||
if (nodes.length) {
|
||
return getAlignmentValue(nodes[0]);
|
||
} else {
|
||
return "left";
|
||
}
|
||
},
|
||
};
|
||
|
||
//@}
|
||
///// The justifyFull command /////
|
||
//@{
|
||
commands.justifyfull = {
|
||
preservesOverrides: true,
|
||
// "Justify the selection with alignment "justify", then return true."
|
||
action: function() { justifySelection("justify"); return true },
|
||
indeterm: function() {
|
||
// "Return false if the active range is null. Otherwise, block-extend
|
||
// the active range. Return true if among visible editable nodes that
|
||
// are contained in the result and have no children, at least one has
|
||
// alignment value "justify" and at least one does not. Otherwise
|
||
// return false."
|
||
if (!getActiveRange()) {
|
||
return false;
|
||
}
|
||
var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
||
return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
||
});
|
||
return nodes.some(function(node) { return getAlignmentValue(node) == "justify" })
|
||
&& nodes.some(function(node) { return getAlignmentValue(node) != "justify" });
|
||
}, state: function() {
|
||
// "Return false if the active range is null. Otherwise, block-extend
|
||
// the active range. Return true if there is at least one visible
|
||
// editable node that is contained in the result and has no children,
|
||
// and all such nodes have alignment value "justify". Otherwise return
|
||
// false."
|
||
if (!getActiveRange()) {
|
||
return false;
|
||
}
|
||
var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
||
return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
||
});
|
||
return nodes.length
|
||
&& nodes.every(function(node) { return getAlignmentValue(node) == "justify" });
|
||
}, value: function() {
|
||
// "Return the empty string if the active range is null. Otherwise,
|
||
// block-extend the active range, and return the alignment value of the
|
||
// first visible editable node that is contained in the result and has
|
||
// no children. If there is no such node, return "left"."
|
||
if (!getActiveRange()) {
|
||
return "";
|
||
}
|
||
var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
||
return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
||
});
|
||
if (nodes.length) {
|
||
return getAlignmentValue(nodes[0]);
|
||
} else {
|
||
return "left";
|
||
}
|
||
},
|
||
};
|
||
|
||
//@}
|
||
///// The justifyLeft command /////
|
||
//@{
|
||
commands.justifyleft = {
|
||
preservesOverrides: true,
|
||
// "Justify the selection with alignment "left", then return true."
|
||
action: function() { justifySelection("left"); return true },
|
||
indeterm: function() {
|
||
// "Return false if the active range is null. Otherwise, block-extend
|
||
// the active range. Return true if among visible editable nodes that
|
||
// are contained in the result and have no children, at least one has
|
||
// alignment value "left" and at least one does not. Otherwise return
|
||
// false."
|
||
if (!getActiveRange()) {
|
||
return false;
|
||
}
|
||
var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
||
return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
||
});
|
||
return nodes.some(function(node) { return getAlignmentValue(node) == "left" })
|
||
&& nodes.some(function(node) { return getAlignmentValue(node) != "left" });
|
||
}, state: function() {
|
||
// "Return false if the active range is null. Otherwise, block-extend
|
||
// the active range. Return true if there is at least one visible
|
||
// editable node that is contained in the result and has no children,
|
||
// and all such nodes have alignment value "left". Otherwise return
|
||
// false."
|
||
if (!getActiveRange()) {
|
||
return false;
|
||
}
|
||
var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
||
return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
||
});
|
||
return nodes.length
|
||
&& nodes.every(function(node) { return getAlignmentValue(node) == "left" });
|
||
}, value: function() {
|
||
// "Return the empty string if the active range is null. Otherwise,
|
||
// block-extend the active range, and return the alignment value of the
|
||
// first visible editable node that is contained in the result and has
|
||
// no children. If there is no such node, return "left"."
|
||
if (!getActiveRange()) {
|
||
return "";
|
||
}
|
||
var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
||
return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
||
});
|
||
if (nodes.length) {
|
||
return getAlignmentValue(nodes[0]);
|
||
} else {
|
||
return "left";
|
||
}
|
||
},
|
||
};
|
||
|
||
//@}
|
||
///// The justifyRight command /////
|
||
//@{
|
||
commands.justifyright = {
|
||
preservesOverrides: true,
|
||
// "Justify the selection with alignment "right", then return true."
|
||
action: function() { justifySelection("right"); return true },
|
||
indeterm: function() {
|
||
// "Return false if the active range is null. Otherwise, block-extend
|
||
// the active range. Return true if among visible editable nodes that
|
||
// are contained in the result and have no children, at least one has
|
||
// alignment value "right" and at least one does not. Otherwise return
|
||
// false."
|
||
if (!getActiveRange()) {
|
||
return false;
|
||
}
|
||
var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
||
return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
||
});
|
||
return nodes.some(function(node) { return getAlignmentValue(node) == "right" })
|
||
&& nodes.some(function(node) { return getAlignmentValue(node) != "right" });
|
||
}, state: function() {
|
||
// "Return false if the active range is null. Otherwise, block-extend
|
||
// the active range. Return true if there is at least one visible
|
||
// editable node that is contained in the result and has no children,
|
||
// and all such nodes have alignment value "right". Otherwise return
|
||
// false."
|
||
if (!getActiveRange()) {
|
||
return false;
|
||
}
|
||
var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
||
return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
||
});
|
||
return nodes.length
|
||
&& nodes.every(function(node) { return getAlignmentValue(node) == "right" });
|
||
}, value: function() {
|
||
// "Return the empty string if the active range is null. Otherwise,
|
||
// block-extend the active range, and return the alignment value of the
|
||
// first visible editable node that is contained in the result and has
|
||
// no children. If there is no such node, return "left"."
|
||
if (!getActiveRange()) {
|
||
return "";
|
||
}
|
||
var nodes = getAllContainedNodes(blockExtend(getActiveRange()), function(node) {
|
||
return isEditable(node) && isVisible(node) && !node.hasChildNodes();
|
||
});
|
||
if (nodes.length) {
|
||
return getAlignmentValue(nodes[0]);
|
||
} else {
|
||
return "left";
|
||
}
|
||
},
|
||
};
|
||
|
||
//@}
|
||
///// The outdent command /////
|
||
//@{
|
||
commands.outdent = {
|
||
preservesOverrides: true,
|
||
action: function() {
|
||
// "Let items be a list of all lis that are ancestor containers of the
|
||
// range's start and/or end node."
|
||
//
|
||
// It's annoying to get this in tree order using functional stuff
|
||
// without doing getDescendants(document), which is slow, so I do it
|
||
// imperatively.
|
||
var items = [];
|
||
(function(){
|
||
for (
|
||
var ancestorContainer = getActiveRange().endContainer;
|
||
ancestorContainer != getActiveRange().commonAncestorContainer;
|
||
ancestorContainer = ancestorContainer.parentNode
|
||
) {
|
||
if (isHtmlElement(ancestorContainer, "li")) {
|
||
items.unshift(ancestorContainer);
|
||
}
|
||
}
|
||
for (
|
||
var ancestorContainer = getActiveRange().startContainer;
|
||
ancestorContainer;
|
||
ancestorContainer = ancestorContainer.parentNode
|
||
) {
|
||
if (isHtmlElement(ancestorContainer, "li")) {
|
||
items.unshift(ancestorContainer);
|
||
}
|
||
}
|
||
})();
|
||
|
||
// "For each item in items, normalize sublists of item."
|
||
items.forEach(normalizeSublists);
|
||
|
||
// "Block-extend the active range, and let new range be the result."
|
||
var newRange = blockExtend(getActiveRange());
|
||
|
||
// "Let node list be a list of nodes, initially empty."
|
||
//
|
||
// "For each node node contained in new range, append node to node list
|
||
// if the last member of node list (if any) is not an ancestor of node;
|
||
// node is editable; and either node has no editable descendants, or is
|
||
// an ol or ul, or is an li whose parent is an ol or ul."
|
||
var nodeList = getContainedNodes(newRange, function(node) {
|
||
return isEditable(node)
|
||
&& (!getDescendants(node).some(isEditable)
|
||
|| isHtmlElement(node, ["ol", "ul"])
|
||
|| (isHtmlElement(node, "li") && isHtmlElement(node.parentNode, ["ol", "ul"])));
|
||
});
|
||
|
||
// "While node list is not empty:"
|
||
while (nodeList.length) {
|
||
// "While the first member of node list is an ol or ul or is not
|
||
// the child of an ol or ul, outdent it and remove it from node
|
||
// list."
|
||
while (nodeList.length
|
||
&& (isHtmlElement(nodeList[0], ["OL", "UL"])
|
||
|| !isHtmlElement(nodeList[0].parentNode, ["OL", "UL"]))) {
|
||
outdentNode(nodeList.shift());
|
||
}
|
||
|
||
// "If node list is empty, break from these substeps."
|
||
if (!nodeList.length) {
|
||
break;
|
||
}
|
||
|
||
// "Let sublist be a list of nodes, initially empty."
|
||
var sublist = [];
|
||
|
||
// "Remove the first member of node list and append it to sublist."
|
||
sublist.push(nodeList.shift());
|
||
|
||
// "While the first member of node list is the nextSibling of the
|
||
// last member of sublist, and the first member of node list is not
|
||
// an ol or ul, remove the first member of node list and append it
|
||
// to sublist."
|
||
while (nodeList.length
|
||
&& nodeList[0] == sublist[sublist.length - 1].nextSibling
|
||
&& !isHtmlElement(nodeList[0], ["OL", "UL"])) {
|
||
sublist.push(nodeList.shift());
|
||
}
|
||
|
||
// "Record the values of sublist, and let values be the result."
|
||
var values = recordValues(sublist);
|
||
|
||
// "Split the parent of sublist, with new parent null."
|
||
splitParent(sublist);
|
||
|
||
// "Fix disallowed ancestors of each member of sublist."
|
||
sublist.forEach(fixDisallowedAncestors);
|
||
|
||
// "Restore the values from values."
|
||
restoreValues(values);
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
};
|
||
|
||
//@}
|
||
|
||
//////////////////////////////////
|
||
///// Miscellaneous commands /////
|
||
//////////////////////////////////
|
||
|
||
///// The defaultParagraphSeparator command /////
|
||
//@{
|
||
commands.defaultparagraphseparator = {
|
||
action: function(value) {
|
||
// "Let value be converted to ASCII lowercase. If value is then equal
|
||
// to "p" or "div", set the context object's default single-line
|
||
// container name to value and return true. Otherwise, return false."
|
||
value = value.toLowerCase();
|
||
if (value == "p" || value == "div") {
|
||
defaultSingleLineContainerName = value;
|
||
return true;
|
||
}
|
||
return false;
|
||
}, value: function() {
|
||
// "Return the context object's default single-line container name."
|
||
return defaultSingleLineContainerName;
|
||
},
|
||
};
|
||
|
||
//@}
|
||
///// The selectAll command /////
|
||
//@{
|
||
commands.selectall = {
|
||
// Note, this ignores the whole globalRange/getActiveRange() thing and
|
||
// works with actual selections. Not suitable for autoimplementation.html.
|
||
action: function() {
|
||
// "Let target be the body element of the context object."
|
||
var target = document.body;
|
||
|
||
// "If target is null, let target be the context object's
|
||
// documentElement."
|
||
if (!target) {
|
||
target = document.documentElement;
|
||
}
|
||
|
||
// "If target is null, call getSelection() on the context object, and
|
||
// call removeAllRanges() on the result."
|
||
if (!target) {
|
||
getSelection().removeAllRanges();
|
||
|
||
// "Otherwise, call getSelection() on the context object, and call
|
||
// selectAllChildren(target) on the result."
|
||
} else {
|
||
getSelection().selectAllChildren(target);
|
||
}
|
||
|
||
// "Return true."
|
||
return true;
|
||
}
|
||
};
|
||
|
||
//@}
|
||
///// The styleWithCSS command /////
|
||
//@{
|
||
commands.stylewithcss = {
|
||
action: function(value) {
|
||
// "If value is an ASCII case-insensitive match for the string
|
||
// "false", set the CSS styling flag to false. Otherwise, set the
|
||
// CSS styling flag to true. Either way, return true."
|
||
cssStylingFlag = String(value).toLowerCase() != "false";
|
||
return true;
|
||
}, state: function() { return cssStylingFlag }
|
||
};
|
||
|
||
//@}
|
||
///// The useCSS command /////
|
||
//@{
|
||
commands.usecss = {
|
||
action: function(value) {
|
||
// "If value is an ASCII case-insensitive match for the string "false",
|
||
// set the CSS styling flag to true. Otherwise, set the CSS styling
|
||
// flag to false. Either way, return true."
|
||
cssStylingFlag = String(value).toLowerCase() == "false";
|
||
return true;
|
||
}
|
||
};
|
||
//@}
|
||
|
||
// Some final setup
|
||
//@{
|
||
(function() {
|
||
// Opera 11.50 doesn't implement Object.keys, so I have to make an explicit
|
||
// temporary, which means I need an extra closure to not leak the temporaries
|
||
// into the global namespace. >:(
|
||
var commandNames = [];
|
||
for (var command in commands) {
|
||
commandNames.push(command);
|
||
}
|
||
commandNames.forEach(function(command) {
|
||
// "If a command does not have a relevant CSS property specified, it
|
||
// defaults to null."
|
||
if (!("relevantCssProperty" in commands[command])) {
|
||
commands[command].relevantCssProperty = null;
|
||
}
|
||
|
||
// "If a command has inline command activated values defined but nothing
|
||
// else defines when it is indeterminate, it is indeterminate if among
|
||
// formattable nodes effectively contained in the active range, there is at
|
||
// least one whose effective command value is one of the given values and
|
||
// at least one whose effective command value is not one of the given
|
||
// values."
|
||
if ("inlineCommandActivatedValues" in commands[command]
|
||
&& !("indeterm" in commands[command])) {
|
||
commands[command].indeterm = function() {
|
||
if (!getActiveRange()) {
|
||
return false;
|
||
}
|
||
|
||
var values = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode)
|
||
.map(function(node) { return getEffectiveCommandValue(node, command) });
|
||
|
||
var matchingValues = values.filter(function(value) {
|
||
return commands[command].inlineCommandActivatedValues.indexOf(value) != -1;
|
||
});
|
||
|
||
return matchingValues.length >= 1
|
||
&& values.length - matchingValues.length >= 1;
|
||
};
|
||
}
|
||
|
||
// "If a command has inline command activated values defined, its state is
|
||
// true if either no formattable node is effectively contained in the
|
||
// active range, and the active range's start node's effective command
|
||
// value is one of the given values; or if there is at least one
|
||
// formattable node effectively contained in the active range, and all of
|
||
// them have an effective command value equal to one of the given values."
|
||
if ("inlineCommandActivatedValues" in commands[command]) {
|
||
commands[command].state = function() {
|
||
if (!getActiveRange()) {
|
||
return false;
|
||
}
|
||
|
||
var nodes = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode);
|
||
|
||
if (nodes.length == 0) {
|
||
return commands[command].inlineCommandActivatedValues
|
||
.indexOf(getEffectiveCommandValue(getActiveRange().startContainer, command)) != -1;
|
||
} else {
|
||
return nodes.every(function(node) {
|
||
return commands[command].inlineCommandActivatedValues
|
||
.indexOf(getEffectiveCommandValue(node, command)) != -1;
|
||
});
|
||
}
|
||
};
|
||
}
|
||
|
||
// "If a command is a standard inline value command, it is indeterminate if
|
||
// among formattable nodes that are effectively contained in the active
|
||
// range, there are two that have distinct effective command values. Its
|
||
// value is the effective command value of the first formattable node that
|
||
// is effectively contained in the active range; or if there is no such
|
||
// node, the effective command value of the active range's start node; or
|
||
// if that is null, the empty string."
|
||
if ("standardInlineValueCommand" in commands[command]) {
|
||
commands[command].indeterm = function() {
|
||
if (!getActiveRange()) {
|
||
return false;
|
||
}
|
||
|
||
var values = getAllEffectivelyContainedNodes(getActiveRange())
|
||
.filter(isFormattableNode)
|
||
.map(function(node) { return getEffectiveCommandValue(node, command) });
|
||
for (var i = 1; i < values.length; i++) {
|
||
if (values[i] != values[i - 1]) {
|
||
return true;
|
||
}
|
||
}
|
||
return false;
|
||
};
|
||
|
||
commands[command].value = function() {
|
||
if (!getActiveRange()) {
|
||
return "";
|
||
}
|
||
|
||
var refNode = getAllEffectivelyContainedNodes(getActiveRange(), isFormattableNode)[0];
|
||
|
||
if (typeof refNode == "undefined") {
|
||
refNode = getActiveRange().startContainer;
|
||
}
|
||
|
||
var ret = getEffectiveCommandValue(refNode, command);
|
||
if (ret === null) {
|
||
return "";
|
||
}
|
||
return ret;
|
||
};
|
||
}
|
||
|
||
// "If a command preserves overrides, then before taking its action, the
|
||
// user agent must record current overrides. After taking the action, if
|
||
// the active range is collapsed, it must restore states and values from
|
||
// the recorded list."
|
||
if ("preservesOverrides" in commands[command]) {
|
||
var oldAction = commands[command].action;
|
||
|
||
commands[command].action = function(value) {
|
||
var overrides = recordCurrentOverrides();
|
||
var ret = oldAction(value);
|
||
if (getActiveRange().collapsed) {
|
||
restoreStatesAndValues(overrides);
|
||
}
|
||
return ret;
|
||
};
|
||
}
|
||
});
|
||
})();
|
||
//@}
|
||
|
||
// vim: foldmarker=@{,@} foldmethod=marker
|