mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
560 lines
17 KiB
JavaScript
560 lines
17 KiB
JavaScript
/* -*- Mode: Javascript; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const Cu = Components.utils;
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const Ci = Components.interfaces;
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const Cc = Components.classes;
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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource://gre/modules/Task.jsm");
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Cu.import("resource://gre/modules/devtools/Loader.jsm");
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Cu.import("resource://gre/modules/devtools/Console.jsm");
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const {Promise: promise} = Cu.import("resource://gre/modules/Promise.jsm", {});
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const {InplaceEditor, editableItem} = devtools.require("devtools/shared/inplace-editor");
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const {parseDeclarations} = devtools.require("devtools/styleinspector/css-parsing-utils");
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const {ReflowFront} = devtools.require("devtools/server/actors/layout");
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const NUMERIC = /^-?[\d\.]+$/;
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const LONG_TEXT_ROTATE_LIMIT = 3;
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/**
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* An instance of EditingSession tracks changes that have been made during the
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* modification of box model values. All of these changes can be reverted by
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* calling revert.
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*
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* @param doc A DOM document that can be used to test style rules.
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* @param rules An array of the style rules defined for the node being edited.
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* These should be in order of priority, least important first.
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*/
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function EditingSession(doc, rules) {
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this._doc = doc;
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this._rules = rules;
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this._modifications = new Map();
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}
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EditingSession.prototype = {
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/**
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* Gets the value of a single property from the CSS rule.
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*
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* @param rule The CSS rule
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* @param property The name of the property
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*/
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getPropertyFromRule: function(rule, property) {
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let dummyStyle = this._element.style;
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dummyStyle.cssText = rule.cssText;
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return dummyStyle.getPropertyValue(property);
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},
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/**
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* Returns the current value for a property as a string or the empty string if
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* no style rules affect the property.
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*
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* @param property The name of the property as a string
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*/
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getProperty: function(property) {
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// Create a hidden element for getPropertyFromRule to use
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let div = this._doc.createElement("div");
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div.setAttribute("style", "display: none");
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this._doc.body.appendChild(div);
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this._element = this._doc.createElement("p");
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div.appendChild(this._element);
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// As the rules are in order of priority we can just iterate until we find
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// the first that defines a value for the property and return that.
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for (let rule of this._rules) {
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let value = this.getPropertyFromRule(rule, property);
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if (value !== "") {
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div.remove();
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return value;
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}
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}
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div.remove();
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return "";
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},
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/**
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* Sets a number of properties on the node. Returns a promise that will be
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* resolved when the modifications are complete.
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*
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* @param properties An array of properties, each is an object with name and
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* value properties. If the value is "" then the property
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* is removed.
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*/
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setProperties: function(properties) {
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let modifications = this._rules[0].startModifyingProperties();
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for (let property of properties) {
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if (!this._modifications.has(property.name)) {
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this._modifications.set(property.name,
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this.getPropertyFromRule(this._rules[0], property.name));
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}
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if (property.value == "") {
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modifications.removeProperty(property.name);
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} else {
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modifications.setProperty(property.name, property.value, "");
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}
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}
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return modifications.apply().then(null, console.error);
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},
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/**
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* Reverts all of the property changes made by this instance. Returns a
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* promise that will be resolved when complete.
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*/
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revert: function() {
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let modifications = this._rules[0].startModifyingProperties();
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for (let [property, value] of this._modifications) {
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if (value != "") {
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modifications.setProperty(property, value, "");
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} else {
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modifications.removeProperty(property);
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}
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}
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return modifications.apply().then(null, console.error);
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},
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destroy: function() {
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this._doc = null;
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this._rules = null;
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this._modifications.clear();
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}
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};
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/**
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* The layout-view panel
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* @param {InspectorPanel} inspector An instance of the inspector-panel
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* currently loaded in the toolbox
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* @param {Window} win The window containing the panel
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*/
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function LayoutView(inspector, win) {
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this.inspector = inspector;
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this.doc = win.document;
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this.sizeLabel = this.doc.querySelector(".size > span");
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this.sizeHeadingLabel = this.doc.getElementById("element-size");
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this.init();
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}
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LayoutView.prototype = {
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init: function() {
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this.update = this.update.bind(this);
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this.onNewSelection = this.onNewSelection.bind(this);
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this.inspector.selection.on("new-node-front", this.onNewSelection);
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this.onNewNode = this.onNewNode.bind(this);
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this.inspector.sidebar.on("layoutview-selected", this.onNewNode);
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this.onSidebarSelect = this.onSidebarSelect.bind(this);
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this.inspector.sidebar.on("select", this.onSidebarSelect);
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// Store for the different dimensions of the node.
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// 'selector' refers to the element that holds the value in view.xhtml;
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// 'property' is what we are measuring;
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// 'value' is the computed dimension, computed in update().
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this.map = {
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position: {selector: "#element-position",
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property: "position",
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value: undefined},
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marginTop: {selector: ".margin.top > span",
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property: "margin-top",
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value: undefined},
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marginBottom: {selector: ".margin.bottom > span",
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property: "margin-bottom",
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value: undefined},
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// margin-left is a shorthand for some internal properties,
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// margin-left-ltr-source and margin-left-rtl-source for example. The
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// real margin value we want is in margin-left-value
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marginLeft: {selector: ".margin.left > span",
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property: "margin-left",
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realProperty: "margin-left-value",
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value: undefined},
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// margin-right behaves the same as margin-left
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marginRight: {selector: ".margin.right > span",
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property: "margin-right",
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realProperty: "margin-right-value",
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value: undefined},
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paddingTop: {selector: ".padding.top > span",
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property: "padding-top",
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value: undefined},
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paddingBottom: {selector: ".padding.bottom > span",
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property: "padding-bottom",
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value: undefined},
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// padding-left behaves the same as margin-left
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paddingLeft: {selector: ".padding.left > span",
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property: "padding-left",
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realProperty: "padding-left-value",
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value: undefined},
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// padding-right behaves the same as margin-left
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paddingRight: {selector: ".padding.right > span",
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property: "padding-right",
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realProperty: "padding-right-value",
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value: undefined},
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borderTop: {selector: ".border.top > span",
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property: "border-top-width",
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value: undefined},
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borderBottom: {selector: ".border.bottom > span",
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property: "border-bottom-width",
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value: undefined},
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borderLeft: {selector: ".border.left > span",
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property: "border-left-width",
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value: undefined},
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borderRight: {selector: ".border.right > span",
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property: "border-right-width",
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value: undefined},
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};
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// Make each element the dimensions editable
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for (let i in this.map) {
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if (i == "position")
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continue;
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let dimension = this.map[i];
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editableItem({
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element: this.doc.querySelector(dimension.selector)
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}, (element, event) => {
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this.initEditor(element, event, dimension);
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});
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}
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this.onNewNode();
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},
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/**
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* Start listening to reflows in the current tab.
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*/
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trackReflows: function() {
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if (!this.reflowFront) {
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let toolbox = this.inspector.toolbox;
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if (toolbox.target.form.reflowActor) {
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this.reflowFront = ReflowFront(toolbox.target.client, toolbox.target.form);
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} else {
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return;
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}
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}
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this.reflowFront.on("reflows", this.update);
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this.reflowFront.start();
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},
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/**
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* Stop listening to reflows in the current tab.
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*/
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untrackReflows: function() {
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if (!this.reflowFront) {
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return;
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}
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this.reflowFront.off("reflows", this.update);
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this.reflowFront.stop();
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},
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/**
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* Called when the user clicks on one of the editable values in the layoutview
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*/
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initEditor: function(element, event, dimension) {
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let { property, realProperty } = dimension;
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if (!realProperty)
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realProperty = property;
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let session = new EditingSession(document, this.elementRules);
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let initialValue = session.getProperty(realProperty);
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let editor = new InplaceEditor({
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element: element,
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initial: initialValue,
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start: (editor) => {
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editor.elt.parentNode.classList.add("editing");
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},
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change: (value) => {
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if (NUMERIC.test(value)) {
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value += "px";
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}
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let properties = [
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{ name: property, value: value }
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];
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if (property.substring(0, 7) == "border-") {
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let bprop = property.substring(0, property.length - 5) + "style";
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let style = session.getProperty(bprop);
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if (!style || style == "none" || style == "hidden") {
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properties.push({ name: bprop, value: "solid" });
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}
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}
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session.setProperties(properties);
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},
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done: (value, commit) => {
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editor.elt.parentNode.classList.remove("editing");
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if (!commit) {
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session.revert();
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session.destroy();
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}
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}
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}, event);
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},
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/**
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* Is the layoutview visible in the sidebar?
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*/
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isActive: function() {
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return this.inspector &&
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this.inspector.sidebar.getCurrentTabID() == "layoutview";
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},
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/**
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* Destroy the nodes. Remove listeners.
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*/
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destroy: function() {
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this.inspector.sidebar.off("layoutview-selected", this.onNewNode);
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this.inspector.selection.off("new-node-front", this.onNewSelection);
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this.inspector.sidebar.off("select", this.onSidebarSelect);
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this.sizeHeadingLabel = null;
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this.sizeLabel = null;
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this.inspector = null;
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this.doc = null;
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if (this.reflowFront) {
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this.untrackReflows();
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this.reflowFront.destroy();
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this.reflowFront = null;
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}
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},
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onSidebarSelect: function(e, sidebar) {
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if (sidebar !== "layoutview") {
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this.dim();
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}
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},
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/**
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* Selection 'new-node-front' event handler.
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*/
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onNewSelection: function() {
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let done = this.inspector.updating("layoutview");
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this.onNewNode().then(done, (err) => { console.error(err); done() });
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},
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/**
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* @return a promise that resolves when the view has been updated
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*/
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onNewNode: function() {
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if (this.isActive() &&
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this.inspector.selection.isConnected() &&
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this.inspector.selection.isElementNode()) {
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this.undim();
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} else {
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this.dim();
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}
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return this.update();
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},
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/**
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* Hide the layout boxes and stop refreshing on reflows. No node is selected
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* or the layout-view sidebar is inactive.
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*/
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dim: function() {
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this.untrackReflows();
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this.doc.body.classList.add("dim");
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this.dimmed = true;
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},
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/**
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* Show the layout boxes and start refreshing on reflows. A node is selected
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* and the layout-view side is active.
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*/
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undim: function() {
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this.trackReflows();
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this.doc.body.classList.remove("dim");
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this.dimmed = false;
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},
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/**
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* Compute the dimensions of the node and update the values in
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* the layoutview/view.xhtml document.
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* @return a promise that will be resolved when complete.
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*/
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update: function() {
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let lastRequest = Task.spawn((function*() {
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if (!this.isActive() ||
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!this.inspector.selection.isConnected() ||
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!this.inspector.selection.isElementNode()) {
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return;
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}
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let node = this.inspector.selection.nodeFront;
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let layout = yield this.inspector.pageStyle.getLayout(node, {
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autoMargins: !this.dimmed
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});
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let styleEntries = yield this.inspector.pageStyle.getApplied(node, {});
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// If a subsequent request has been made, wait for that one instead.
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if (this._lastRequest != lastRequest) {
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return this._lastRequest;
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}
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this._lastRequest = null;
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let width = layout.width;
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let height = layout.height;
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let newLabel = width + "x" + height;
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if (this.sizeHeadingLabel.textContent != newLabel) {
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this.sizeHeadingLabel.textContent = newLabel;
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}
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// If the view is dimmed, no need to do anything more.
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if (this.dimmed) {
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this.inspector.emit("layoutview-updated");
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return null;
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}
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for (let i in this.map) {
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let property = this.map[i].property;
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if (!(property in layout)) {
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// Depending on the actor version, some properties
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// might be missing.
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continue;
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}
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let parsedValue = parseInt(layout[property]);
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if (Number.isNaN(parsedValue)) {
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// Not a number. We use the raw string.
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// Useful for "position" for example.
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this.map[i].value = layout[property];
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} else {
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this.map[i].value = parsedValue;
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}
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}
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let margins = layout.autoMargins;
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if ("top" in margins) this.map.marginTop.value = "auto";
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if ("right" in margins) this.map.marginRight.value = "auto";
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if ("bottom" in margins) this.map.marginBottom.value = "auto";
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if ("left" in margins) this.map.marginLeft.value = "auto";
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for (let i in this.map) {
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let selector = this.map[i].selector;
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let span = this.doc.querySelector(selector);
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if (span.textContent.length > 0 &&
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span.textContent == this.map[i].value) {
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continue;
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}
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span.textContent = this.map[i].value;
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this.manageOverflowingText(span);
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}
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width -= this.map.borderLeft.value + this.map.borderRight.value +
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this.map.paddingLeft.value + this.map.paddingRight.value;
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height -= this.map.borderTop.value + this.map.borderBottom.value +
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this.map.paddingTop.value + this.map.paddingBottom.value;
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let newValue = width + "x" + height;
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if (this.sizeLabel.textContent != newValue) {
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this.sizeLabel.textContent = newValue;
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}
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this.elementRules = [e.rule for (e of styleEntries)];
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this.inspector.emit("layoutview-updated");
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}).bind(this)).then(null, console.error);
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return this._lastRequest = lastRequest;
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},
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/**
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* Show the box-model highlighter on the currently selected element
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* @param {Object} options Options passed to the highlighter actor
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*/
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showBoxModel: function(options={}) {
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let toolbox = this.inspector.toolbox;
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let nodeFront = this.inspector.selection.nodeFront;
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toolbox.highlighterUtils.highlightNodeFront(nodeFront, options);
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},
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/**
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* Hide the box-model highlighter on the currently selected element
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*/
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hideBoxModel: function() {
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let toolbox = this.inspector.toolbox;
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toolbox.highlighterUtils.unhighlight();
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},
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manageOverflowingText: function(span) {
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let classList = span.parentNode.classList;
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if (classList.contains("left") || classList.contains("right")) {
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let force = span.textContent.length > LONG_TEXT_ROTATE_LIMIT;
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classList.toggle("rotate", force);
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}
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}
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};
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let elts;
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let tooltip;
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let onmouseover = function(e) {
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let region = e.target.getAttribute("data-box");
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tooltip.textContent = e.target.getAttribute("tooltip");
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this.layoutview.showBoxModel({region: region});
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return false;
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}.bind(window);
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let onmouseout = function(e) {
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tooltip.textContent = "";
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this.layoutview.hideBoxModel();
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return false;
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}.bind(window);
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window.setPanel = function(panel) {
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this.layoutview = new LayoutView(panel, window);
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// Tooltip mechanism
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elts = document.querySelectorAll("*[tooltip]");
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tooltip = document.querySelector(".tooltip");
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for (let i = 0; i < elts.length; i++) {
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let elt = elts[i];
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elt.addEventListener("mouseover", onmouseover, true);
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elt.addEventListener("mouseout", onmouseout, true);
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}
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// Mark document as RTL or LTR:
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let chromeReg = Cc["@mozilla.org/chrome/chrome-registry;1"].
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|
getService(Ci.nsIXULChromeRegistry);
|
|
let dir = chromeReg.isLocaleRTL("global");
|
|
document.body.setAttribute("dir", dir ? "rtl" : "ltr");
|
|
|
|
window.parent.postMessage("layoutview-ready", "*");
|
|
};
|
|
|
|
window.onunload = function() {
|
|
this.layoutview.destroy();
|
|
if (elts) {
|
|
for (let i = 0; i < elts.length; i++) {
|
|
let elt = elts[i];
|
|
elt.removeEventListener("mouseover", onmouseover, true);
|
|
elt.removeEventListener("mouseout", onmouseout, true);
|
|
}
|
|
}
|
|
};
|