mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
248 lines
7.9 KiB
JavaScript
248 lines
7.9 KiB
JavaScript
/* -*- Mode: C++; tab-width: 8; 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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Cu.import("resource://gre/modules/Services.jsm");
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Cu.import("resource:///modules/devtools/LayoutHelpers.jsm");
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Cu.import("resource://gre/modules/devtools/Loader.jsm");
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let {CssLogic} = devtools.require("devtools/styleinspector/css-logic");
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function LayoutView(aInspector, aWindow)
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{
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this.inspector = aInspector;
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// <browser> is not always available (for Chrome targets for example)
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if (this.inspector.target.tab) {
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this.browser = aInspector.target.tab.linkedBrowser;
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}
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this.doc = aWindow.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 LV_init() {
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this.cssLogic = new CssLogic();
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this.update = this.update.bind(this);
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this.onNewNode = this.onNewNode.bind(this);
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this.onHighlighterLocked = this.onHighlighterLocked.bind(this);
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this.inspector.selection.on("new-node", this.onNewNode);
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this.inspector.sidebar.on("layoutview-selected", this.onNewNode);
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if (this.inspector.highlighter) {
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this.inspector.highlighter.on("locked", this.onHighlighterLocked);
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}
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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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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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marginLeft: {selector: ".margin.left > span",
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property: "margin-left",
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value: undefined},
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marginRight: {selector: ".margin.right > span",
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property: "margin-right",
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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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paddingLeft: {selector: ".padding.left > span",
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property: "padding-left",
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value: undefined},
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paddingRight: {selector: ".padding.right > span",
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property: "padding-right",
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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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this.onNewNode();
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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 LV_isActive() {
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return 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 LV_destroy() {
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this.inspector.sidebar.off("layoutview-selected", this.onNewNode);
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this.inspector.selection.off("new-node", this.onNewNode);
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if (this.browser) {
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this.browser.removeEventListener("MozAfterPaint", this.update, true);
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}
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if (this.inspector.highlighter) {
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this.inspector.highlighter.off("locked", this.onHighlighterLocked);
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}
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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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},
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/**
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* Selection 'new-node' event handler.
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*/
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onNewNode: function LV_onNewNode() {
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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.inspector.selection.reason != "highlighter") {
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this.cssLogic.highlight(this.inspector.selection.node);
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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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this.update();
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},
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/**
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* Highlighter 'locked' event handler
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*/
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onHighlighterLocked: function LV_onHighlighterLocked() {
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this.cssLogic.highlight(this.inspector.selection.node);
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this.undim();
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this.update();
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},
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/**
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* Hide the layout boxes. No node are selected.
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*/
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dim: function LV_dim() {
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if (this.browser) {
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this.browser.removeEventListener("MozAfterPaint", this.update, true);
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}
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this.trackingPaint = false;
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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. A node is selected.
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*/
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undim: function LV_undim() {
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if (!this.trackingPaint) {
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if (this.browser) {
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this.browser.addEventListener("MozAfterPaint", this.update, true);
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}
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this.trackingPaint = true;
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}
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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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*/
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update: function LV_update() {
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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.node;
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// First, we update the first part of the layout view, with
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// the size of the element.
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let clientRect = node.getBoundingClientRect();
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let width = Math.round(clientRect.width);
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let height = Math.round(clientRect.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) return;
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// We compute and update the values of margins & co.
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let style = node.ownerDocument.defaultView.getComputedStyle(node);
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for (let i in this.map) {
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let property = this.map[i].property;
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this.map[i].value = parseInt(style.getPropertyValue(property));
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}
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let margins = this.processMargins(node);
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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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}
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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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},
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/**
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* Find margins declared 'auto'
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*/
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processMargins: function LV_processMargins(node) {
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let margins = {};
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for each (let prop in ["top", "bottom", "left", "right"]) {
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let info = this.cssLogic.getPropertyInfo("margin-" + prop);
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let selectors = info.matchedSelectors;
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if (selectors && selectors.length > 0 && selectors[0].value == "auto") {
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margins[prop] = "auto";
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}
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}
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return margins;
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},
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}
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