| /* |
| * Copyright (C) 2013 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| WI.CSSRule = class CSSRule extends WI.Object |
| { |
| constructor(nodeStyles, ownerStyleSheet, id, type, sourceCodeLocation, selectorText, selectors, matchedSelectorIndices, style, mediaList) |
| { |
| super(); |
| |
| console.assert(nodeStyles); |
| this._nodeStyles = nodeStyles; |
| |
| this._ownerStyleSheet = ownerStyleSheet || null; |
| this._id = id || null; |
| this._type = type || null; |
| |
| this.update(sourceCodeLocation, selectorText, selectors, matchedSelectorIndices, style, mediaList, true); |
| } |
| |
| // Public |
| |
| get id() |
| { |
| return this._id; |
| } |
| |
| get ownerStyleSheet() |
| { |
| return this._ownerStyleSheet; |
| } |
| |
| get editable() |
| { |
| return !!this._id && (this._type === WI.CSSStyleSheet.Type.Author || this._type === WI.CSSStyleSheet.Type.Inspector); |
| } |
| |
| update(sourceCodeLocation, selectorText, selectors, matchedSelectorIndices, style, mediaList, dontFireEvents) |
| { |
| sourceCodeLocation = sourceCodeLocation || null; |
| selectorText = selectorText || ""; |
| selectors = selectors || []; |
| matchedSelectorIndices = matchedSelectorIndices || []; |
| style = style || null; |
| mediaList = mediaList || []; |
| |
| var changed = false; |
| if (!dontFireEvents) { |
| changed = this._selectorText !== selectorText || !Array.shallowEqual(this._selectors, selectors) || |
| !Array.shallowEqual(this._matchedSelectorIndices, matchedSelectorIndices) || this._style !== style || |
| !!this._sourceCodeLocation !== !!sourceCodeLocation || this._mediaList.length !== mediaList.length; |
| // FIXME: Look for differences in the media list arrays. |
| } |
| |
| if (this._style) |
| this._style.ownerRule = null; |
| |
| this._sourceCodeLocation = sourceCodeLocation; |
| this._selectorText = selectorText; |
| this._selectors = selectors; |
| this._matchedSelectorIndices = matchedSelectorIndices; |
| this._mostSpecificSelector = null; |
| this._style = style; |
| this._mediaList = mediaList; |
| |
| this._matchedSelectors = null; |
| this._matchedSelectorText = null; |
| |
| if (this._style) |
| this._style.ownerRule = this; |
| |
| if (changed) |
| this.dispatchEventToListeners(WI.CSSRule.Event.Changed); |
| } |
| |
| get type() |
| { |
| return this._type; |
| } |
| |
| get sourceCodeLocation() |
| { |
| return this._sourceCodeLocation; |
| } |
| |
| get selectorText() |
| { |
| return this._selectorText; |
| } |
| |
| set selectorText(selectorText) |
| { |
| console.assert(this.editable); |
| if (!this.editable) |
| return; |
| |
| if (this._selectorText === selectorText) { |
| this._selectorResolved(true); |
| return; |
| } |
| |
| this._nodeStyles.changeRuleSelector(this, selectorText).then(this._selectorResolved.bind(this), this._selectorRejected.bind(this)); |
| } |
| |
| get selectors() |
| { |
| return this._selectors; |
| } |
| |
| get matchedSelectorIndices() |
| { |
| return this._matchedSelectorIndices; |
| } |
| |
| get matchedSelectors() |
| { |
| if (this._matchedSelectors) |
| return this._matchedSelectors; |
| |
| this._matchedSelectors = this._selectors.filter(function(element, index) { |
| return this._matchedSelectorIndices.includes(index); |
| }, this); |
| |
| return this._matchedSelectors; |
| } |
| |
| get matchedSelectorText() |
| { |
| if ("_matchedSelectorText" in this) |
| return this._matchedSelectorText; |
| |
| this._matchedSelectorText = this.matchedSelectors.map(function(x) { return x.text; }).join(", "); |
| |
| return this._matchedSelectorText; |
| } |
| |
| hasMatchedPseudoElementSelector() |
| { |
| if (this.nodeStyles && this.nodeStyles.node && this.nodeStyles.node.isPseudoElement()) |
| return true; |
| |
| return this.matchedSelectors.some((selector) => selector.isPseudoElementSelector()); |
| } |
| |
| get style() |
| { |
| return this._style; |
| } |
| |
| get mediaList() |
| { |
| return this._mediaList; |
| } |
| |
| get mediaText() |
| { |
| if (!this._mediaList.length) |
| return ""; |
| |
| let mediaText = ""; |
| for (let media of this._mediaList) |
| mediaText += media.text; |
| |
| return mediaText; |
| } |
| |
| isEqualTo(rule) |
| { |
| if (!rule) |
| return false; |
| |
| return Object.shallowEqual(this._id, rule.id); |
| } |
| |
| get mostSpecificSelector() |
| { |
| if (!this._mostSpecificSelector) |
| this._mostSpecificSelector = this._determineMostSpecificSelector(); |
| |
| return this._mostSpecificSelector; |
| } |
| |
| selectorIsGreater(otherSelector) |
| { |
| var mostSpecificSelector = this.mostSpecificSelector; |
| |
| if (!mostSpecificSelector) |
| return false; |
| |
| return mostSpecificSelector.isGreaterThan(otherSelector); |
| } |
| |
| // Protected |
| |
| get nodeStyles() |
| { |
| return this._nodeStyles; |
| } |
| |
| // Private |
| |
| _determineMostSpecificSelector() |
| { |
| if (!this._selectors || !this._selectors.length) |
| return null; |
| |
| var selectors = this.matchedSelectors; |
| |
| if (!selectors.length) |
| selectors = this._selectors; |
| |
| var specificSelector = selectors[0]; |
| |
| for (var selector of selectors) { |
| if (selector.isGreaterThan(specificSelector)) |
| specificSelector = selector; |
| } |
| |
| return specificSelector; |
| } |
| |
| _selectorRejected(error) |
| { |
| this.dispatchEventToListeners(WI.CSSRule.Event.SelectorChanged, {valid: !error}); |
| } |
| |
| _selectorResolved(rulePayload) |
| { |
| this.dispatchEventToListeners(WI.CSSRule.Event.SelectorChanged, {valid: !!rulePayload}); |
| } |
| }; |
| |
| WI.CSSRule.Event = { |
| Changed: "css-rule-changed", |
| SelectorChanged: "css-rule-invalid-selector" |
| }; |