зеркало из https://github.com/mozilla/gecko-dev.git
68 строки
2.1 KiB
JavaScript
68 строки
2.1 KiB
JavaScript
/* 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 {
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installHelperSheet,
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isNodeValid,
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addPseudoClassLock,
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removePseudoClassLock
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} = require("./utils/markup");
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// SimpleOutlineHighlighter's stylesheet
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const HIGHLIGHTED_PSEUDO_CLASS = ":-moz-devtools-highlighted";
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const SIMPLE_OUTLINE_SHEET = `.__fx-devtools-hide-shortcut__ {
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visibility: hidden !important
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}
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${HIGHLIGHTED_PSEUDO_CLASS} {
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outline: 2px dashed #F06!important;
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outline-offset: -2px!important
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}`;
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/**
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* The SimpleOutlineHighlighter is a class that has the same API than the
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* BoxModelHighlighter, but adds a pseudo-class on the target element itself
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* to draw a simple css outline around the element.
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* It is used by the HighlighterActor when canvasframe-based highlighters can't
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* be used. This is the case for XUL windows.
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*/
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function SimpleOutlineHighlighter(highlighterEnv) {
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this.chromeDoc = highlighterEnv.document;
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}
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SimpleOutlineHighlighter.prototype = {
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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.hide();
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this.chromeDoc = null;
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},
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/**
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* Show the highlighter on a given node
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* @param {DOMNode} node
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*/
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show: function (node) {
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if (isNodeValid(node) && (!this.currentNode || node !== this.currentNode)) {
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this.hide();
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this.currentNode = node;
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installHelperSheet(node.ownerDocument.defaultView, SIMPLE_OUTLINE_SHEET);
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addPseudoClassLock(node, HIGHLIGHTED_PSEUDO_CLASS);
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}
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return true;
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},
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/**
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* Hide the highlighter, the outline and the infobar.
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*/
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hide: function () {
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if (this.currentNode) {
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removePseudoClassLock(this.currentNode, HIGHLIGHTED_PSEUDO_CLASS);
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this.currentNode = null;
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}
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}
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};
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exports.SimpleOutlineHighlighter = SimpleOutlineHighlighter;
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