| /* |
| * Copyright (C) 2010, Google 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. |
| */ |
| |
| #include "config.h" |
| #include "InspectorStyleSheet.h" |
| |
| #include "CSSImportRule.h" |
| #include "CSSKeyframesRule.h" |
| #include "CSSMediaRule.h" |
| #include "CSSParser.h" |
| #include "CSSParserObserver.h" |
| #include "CSSPropertyNames.h" |
| #include "CSSPropertyParser.h" |
| #include "CSSPropertySourceData.h" |
| #include "CSSRule.h" |
| #include "CSSRuleList.h" |
| #include "CSSStyleRule.h" |
| #include "CSSStyleSheet.h" |
| #include "CSSSupportsRule.h" |
| #include "ContentSecurityPolicy.h" |
| #include "Document.h" |
| #include "Element.h" |
| #include "ExtensionStyleSheets.h" |
| #include "HTMLHeadElement.h" |
| #include "HTMLNames.h" |
| #include "HTMLParserIdioms.h" |
| #include "HTMLStyleElement.h" |
| #include "InspectorCSSAgent.h" |
| #include "InspectorDOMAgent.h" |
| #include "InspectorPageAgent.h" |
| #include "MediaList.h" |
| #include "Node.h" |
| #include "SVGElement.h" |
| #include "SVGStyleElement.h" |
| #include "StyleProperties.h" |
| #include "StyleResolver.h" |
| #include "StyleRule.h" |
| #include "StyleRuleImport.h" |
| #include "StyleSheetContents.h" |
| #include "StyleSheetList.h" |
| #include <JavaScriptCore/ContentSearchUtilities.h> |
| #include <JavaScriptCore/RegularExpression.h> |
| #include <wtf/text/StringBuilder.h> |
| |
| using JSON::ArrayOf; |
| using WebCore::RuleSourceDataList; |
| using WebCore::CSSRuleSourceData; |
| |
| class ParsedStyleSheet { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| ParsedStyleSheet(); |
| |
| const String& text() const { ASSERT(m_hasText); return m_text; } |
| void setText(const String& text); |
| bool hasText() const { return m_hasText; } |
| RuleSourceDataList* sourceData() const { return m_sourceData.get(); } |
| void setSourceData(std::unique_ptr<RuleSourceDataList>); |
| bool hasSourceData() const { return m_sourceData != nullptr; } |
| WebCore::CSSRuleSourceData* ruleSourceDataAt(unsigned) const; |
| |
| private: |
| |
| String m_text; |
| bool m_hasText; |
| std::unique_ptr<RuleSourceDataList> m_sourceData; |
| }; |
| |
| ParsedStyleSheet::ParsedStyleSheet() |
| : m_hasText(false) |
| { |
| } |
| |
| void ParsedStyleSheet::setText(const String& text) |
| { |
| m_hasText = true; |
| m_text = text; |
| setSourceData(nullptr); |
| } |
| |
| static void flattenSourceData(RuleSourceDataList& dataList, RuleSourceDataList& target) |
| { |
| for (auto& data : dataList) { |
| if (data->type == WebCore::StyleRuleType::Style) |
| target.append(data.copyRef()); |
| else if (data->type == WebCore::StyleRuleType::Media) |
| flattenSourceData(data->childRules, target); |
| else if (data->type == WebCore::StyleRuleType::Supports) |
| flattenSourceData(data->childRules, target); |
| } |
| } |
| |
| void ParsedStyleSheet::setSourceData(std::unique_ptr<RuleSourceDataList> sourceData) |
| { |
| if (!sourceData) { |
| m_sourceData.reset(); |
| return; |
| } |
| |
| m_sourceData = makeUnique<RuleSourceDataList>(); |
| |
| // FIXME: This is a temporary solution to retain the original flat sourceData structure |
| // containing only style rules, even though CSSParser now provides the full rule source data tree. |
| // Normally, we should just assign m_sourceData = sourceData; |
| flattenSourceData(*sourceData, *m_sourceData); |
| } |
| |
| WebCore::CSSRuleSourceData* ParsedStyleSheet::ruleSourceDataAt(unsigned index) const |
| { |
| if (!hasSourceData() || index >= m_sourceData->size()) |
| return nullptr; |
| |
| return m_sourceData->at(index).ptr(); |
| } |
| |
| |
| namespace WebCore { |
| |
| using namespace Inspector; |
| |
| static CSSParserContext parserContextForDocument(Document* document) |
| { |
| return document ? CSSParserContext(*document) : strictCSSParserContext(); |
| } |
| |
| class StyleSheetHandler : public CSSParserObserver { |
| public: |
| StyleSheetHandler(const String& parsedText, Document* document, RuleSourceDataList* result) |
| : m_parsedText(parsedText) |
| , m_document(document) |
| , m_ruleSourceDataResult(result) |
| { |
| ASSERT(m_ruleSourceDataResult); |
| } |
| |
| private: |
| void startRuleHeader(StyleRuleType, unsigned) override; |
| void endRuleHeader(unsigned) override; |
| void observeSelector(unsigned startOffset, unsigned endOffset) override; |
| void startRuleBody(unsigned) override; |
| void endRuleBody(unsigned) override; |
| void observeProperty(unsigned startOffset, unsigned endOffset, bool isImportant, bool isParsed) override; |
| void observeComment(unsigned startOffset, unsigned endOffset) override; |
| |
| Ref<CSSRuleSourceData> popRuleData(); |
| template <typename CharacterType> inline void setRuleHeaderEnd(const CharacterType*, unsigned); |
| void fixUnparsedPropertyRanges(CSSRuleSourceData*); |
| |
| const String& m_parsedText; |
| Document* m_document; |
| |
| RuleSourceDataList m_currentRuleDataStack; |
| RefPtr<CSSRuleSourceData> m_currentRuleData; |
| RuleSourceDataList* m_ruleSourceDataResult { nullptr }; |
| }; |
| |
| void StyleSheetHandler::startRuleHeader(StyleRuleType type, unsigned offset) |
| { |
| // Pop off data for a previous invalid rule. |
| if (m_currentRuleData) |
| m_currentRuleDataStack.removeLast(); |
| |
| auto data = CSSRuleSourceData::create(type); |
| data->ruleHeaderRange.start = offset; |
| m_currentRuleData = data.copyRef(); |
| m_currentRuleDataStack.append(WTFMove(data)); |
| } |
| |
| template <typename CharacterType> inline void StyleSheetHandler::setRuleHeaderEnd(const CharacterType* dataStart, unsigned listEndOffset) |
| { |
| while (listEndOffset > 1) { |
| if (isHTMLSpace<CharacterType>(*(dataStart + listEndOffset - 1))) |
| --listEndOffset; |
| else |
| break; |
| } |
| |
| m_currentRuleDataStack.last()->ruleHeaderRange.end = listEndOffset; |
| if (!m_currentRuleDataStack.last()->selectorRanges.isEmpty()) |
| m_currentRuleDataStack.last()->selectorRanges.last().end = listEndOffset; |
| } |
| |
| void StyleSheetHandler::endRuleHeader(unsigned offset) |
| { |
| ASSERT(!m_currentRuleDataStack.isEmpty()); |
| |
| if (m_parsedText.is8Bit()) |
| setRuleHeaderEnd<LChar>(m_parsedText.characters8(), offset); |
| else |
| setRuleHeaderEnd<UChar>(m_parsedText.characters16(), offset); |
| } |
| |
| void StyleSheetHandler::observeSelector(unsigned startOffset, unsigned endOffset) |
| { |
| ASSERT(m_currentRuleDataStack.size()); |
| m_currentRuleDataStack.last()->selectorRanges.append(SourceRange(startOffset, endOffset)); |
| } |
| |
| void StyleSheetHandler::startRuleBody(unsigned offset) |
| { |
| m_currentRuleData = nullptr; |
| ASSERT(!m_currentRuleDataStack.isEmpty()); |
| |
| // Skip the rule body opening brace. |
| if (m_parsedText[offset] == '{') |
| ++offset; |
| |
| m_currentRuleDataStack.last()->ruleBodyRange.start = offset; |
| } |
| |
| void StyleSheetHandler::endRuleBody(unsigned offset) |
| { |
| ASSERT(!m_currentRuleDataStack.isEmpty()); |
| m_currentRuleDataStack.last()->ruleBodyRange.end = offset; |
| auto rule = popRuleData(); |
| fixUnparsedPropertyRanges(rule.ptr()); |
| if (m_currentRuleDataStack.isEmpty()) |
| m_ruleSourceDataResult->append(WTFMove(rule)); |
| else |
| m_currentRuleDataStack.last()->childRules.append(WTFMove(rule)); |
| } |
| |
| Ref<CSSRuleSourceData> StyleSheetHandler::popRuleData() |
| { |
| ASSERT(!m_currentRuleDataStack.isEmpty()); |
| m_currentRuleData = nullptr; |
| auto data = WTFMove(m_currentRuleDataStack.last()); |
| m_currentRuleDataStack.removeLast(); |
| return data; |
| } |
| |
| template <typename CharacterType> |
| static inline void fixUnparsedProperties(const CharacterType* characters, CSSRuleSourceData* ruleData) |
| { |
| Vector<CSSPropertySourceData>& propertyData = ruleData->styleSourceData->propertyData; |
| unsigned size = propertyData.size(); |
| if (!size) |
| return; |
| |
| unsigned styleStart = ruleData->ruleBodyRange.start; |
| |
| CSSPropertySourceData* nextData = &(propertyData.at(0)); |
| for (unsigned i = 0; i < size; ++i) { |
| CSSPropertySourceData* currentData = nextData; |
| nextData = i < size - 1 ? &(propertyData.at(i + 1)) : nullptr; |
| |
| if (currentData->parsedOk) |
| continue; |
| if (currentData->range.end > 0 && characters[styleStart + currentData->range.end - 1] == ';') |
| continue; |
| |
| unsigned propertyEnd; |
| if (!nextData) |
| propertyEnd = ruleData->ruleBodyRange.end - 1; |
| else |
| propertyEnd = styleStart + nextData->range.start - 1; |
| |
| while (isHTMLSpace<CharacterType>(characters[propertyEnd])) |
| --propertyEnd; |
| |
| // propertyEnd points at the last property text character. |
| unsigned newRangeEnd = (propertyEnd - styleStart) + 1; |
| if (currentData->range.end != newRangeEnd) { |
| currentData->range.end = newRangeEnd; |
| unsigned valueStart = styleStart + currentData->range.start + currentData->name.length(); |
| while (valueStart < propertyEnd && characters[valueStart] != ':') |
| ++valueStart; |
| |
| // Shift past the ':'. |
| if (valueStart < propertyEnd) |
| ++valueStart; |
| |
| while (valueStart < propertyEnd && isHTMLSpace<CharacterType>(characters[valueStart])) |
| ++valueStart; |
| |
| // Need to exclude the trailing ';' from the property value. |
| currentData->value = String(characters + valueStart, propertyEnd - valueStart + (characters[propertyEnd] == ';' ? 0 : 1)); |
| } |
| } |
| } |
| |
| void StyleSheetHandler::fixUnparsedPropertyRanges(CSSRuleSourceData* ruleData) |
| { |
| if (!ruleData->styleSourceData) |
| return; |
| |
| if (m_parsedText.is8Bit()) { |
| fixUnparsedProperties<LChar>(m_parsedText.characters8(), ruleData); |
| return; |
| } |
| |
| fixUnparsedProperties<UChar>(m_parsedText.characters16(), ruleData); |
| } |
| |
| void StyleSheetHandler::observeProperty(unsigned startOffset, unsigned endOffset, bool isImportant, bool isParsed) |
| { |
| if (m_currentRuleDataStack.isEmpty() || !m_currentRuleDataStack.last()->styleSourceData) |
| return; |
| |
| ASSERT(endOffset <= m_parsedText.length()); |
| |
| // Include semicolon in the property text. |
| if (endOffset < m_parsedText.length() && m_parsedText[endOffset] == ';') |
| ++endOffset; |
| |
| ASSERT(startOffset < endOffset); |
| String propertyString = m_parsedText.substring(startOffset, endOffset - startOffset).stripWhiteSpace(); |
| if (propertyString.endsWith(';')) |
| propertyString = propertyString.left(propertyString.length() - 1); |
| size_t colonIndex = propertyString.find(':'); |
| ASSERT(colonIndex != notFound); |
| |
| String name = propertyString.left(colonIndex).stripWhiteSpace(); |
| String value = propertyString.substring(colonIndex + 1, propertyString.length()).stripWhiteSpace(); |
| |
| // FIXME-NEWPARSER: The property range is relative to the declaration start offset, but no |
| // good reason for it, and it complicates fixUnparsedProperties. |
| SourceRange& topRuleBodyRange = m_currentRuleDataStack.last()->ruleBodyRange; |
| m_currentRuleDataStack.last()->styleSourceData->propertyData.append(CSSPropertySourceData(name, value, isImportant, false, isParsed, SourceRange(startOffset - topRuleBodyRange.start, endOffset - topRuleBodyRange.start))); |
| } |
| |
| void StyleSheetHandler::observeComment(unsigned startOffset, unsigned endOffset) |
| { |
| ASSERT(endOffset <= m_parsedText.length()); |
| |
| if (m_currentRuleDataStack.isEmpty() || !m_currentRuleDataStack.last()->ruleHeaderRange.end || !m_currentRuleDataStack.last()->styleSourceData) |
| return; |
| |
| // The lexer is not inside a property AND it is scanning a declaration-aware |
| // rule body. |
| String commentText = m_parsedText.substring(startOffset, endOffset - startOffset); |
| |
| ASSERT(commentText.startsWith("/*")); |
| commentText = commentText.substring(2); |
| |
| // Require well-formed comments. |
| if (!commentText.endsWith("*/")) |
| return; |
| commentText = commentText.substring(0, commentText.length() - 2).stripWhiteSpace(); |
| if (commentText.isEmpty()) |
| return; |
| |
| // FIXME: Use the actual rule type rather than STYLE_RULE? |
| RuleSourceDataList sourceData; |
| |
| StyleSheetHandler handler(commentText, m_document, &sourceData); |
| CSSParser::parseDeclarationForInspector(parserContextForDocument(m_document), commentText, handler); |
| Vector<CSSPropertySourceData>& commentPropertyData = sourceData.first()->styleSourceData->propertyData; |
| if (commentPropertyData.size() != 1) |
| return; |
| CSSPropertySourceData& propertyData = commentPropertyData.at(0); |
| bool parsedOk = propertyData.parsedOk || propertyData.name.startsWith("-moz-") || propertyData.name.startsWith("-o-") || propertyData.name.startsWith("-webkit-") || propertyData.name.startsWith("-ms-"); |
| if (!parsedOk || propertyData.range.length() != commentText.length()) |
| return; |
| |
| // FIXME-NEWPARSER: The property range is relative to the declaration start offset, but no |
| // good reason for it, and it complicates fixUnparsedProperties. |
| SourceRange& topRuleBodyRange = m_currentRuleDataStack.last()->ruleBodyRange; |
| m_currentRuleDataStack.last()->styleSourceData->propertyData.append(CSSPropertySourceData(propertyData.name, propertyData.value, false, true, true, SourceRange(startOffset - topRuleBodyRange.start, endOffset - topRuleBodyRange.start))); |
| } |
| |
| static RefPtr<Inspector::Protocol::CSS::SourceRange> buildSourceRangeObject(const SourceRange& range, const Vector<size_t>& lineEndings, int* endingLine = nullptr) |
| { |
| if (lineEndings.isEmpty()) |
| return nullptr; |
| |
| TextPosition start = ContentSearchUtilities::textPositionFromOffset(range.start, lineEndings); |
| TextPosition end = ContentSearchUtilities::textPositionFromOffset(range.end, lineEndings); |
| |
| if (endingLine) |
| *endingLine = end.m_line.zeroBasedInt(); |
| |
| return Inspector::Protocol::CSS::SourceRange::create() |
| .setStartLine(start.m_line.zeroBasedInt()) |
| .setStartColumn(start.m_column.zeroBasedInt()) |
| .setEndLine(end.m_line.zeroBasedInt()) |
| .setEndColumn(end.m_column.zeroBasedInt()) |
| .release(); |
| } |
| |
| static RefPtr<CSSRuleList> asCSSRuleList(CSSStyleSheet* styleSheet) |
| { |
| if (!styleSheet) |
| return nullptr; |
| |
| auto list = StaticCSSRuleList::create(); |
| Vector<RefPtr<CSSRule>>& listRules = list->rules(); |
| for (unsigned i = 0, size = styleSheet->length(); i < size; ++i) |
| listRules.append(styleSheet->item(i)); |
| return list; |
| } |
| |
| static RefPtr<CSSRuleList> asCSSRuleList(CSSRule* rule) |
| { |
| if (!rule) |
| return nullptr; |
| |
| if (is<CSSMediaRule>(*rule)) |
| return &downcast<CSSMediaRule>(*rule).cssRules(); |
| |
| if (is<CSSKeyframesRule>(*rule)) |
| return &downcast<CSSKeyframesRule>(*rule).cssRules(); |
| |
| if (is<CSSSupportsRule>(*rule)) |
| return &downcast<CSSSupportsRule>(*rule).cssRules(); |
| |
| return nullptr; |
| } |
| |
| static Ref<JSON::ArrayOf<Inspector::Protocol::CSS::Grouping>> buildArrayForGroupings(CSSRule& rule) |
| { |
| auto groupingsPayload = JSON::ArrayOf<Inspector::Protocol::CSS::Grouping>::create(); |
| |
| auto* parentRule = &rule; |
| while (parentRule) { |
| RefPtr<Inspector::Protocol::CSS::Grouping> ruleGroupingPayload; |
| |
| if (is<CSSMediaRule>(parentRule)) { |
| auto* media = downcast<CSSMediaRule>(parentRule)->media(); |
| if (media && media->length() && media->mediaText() != "all") { |
| ruleGroupingPayload = Inspector::Protocol::CSS::Grouping::create() |
| .setText(media->mediaText()) |
| .setType(Inspector::Protocol::CSS::Grouping::Type::MediaRule) |
| .release(); |
| } |
| } else if (is<CSSImportRule>(parentRule)) { |
| auto& media = downcast<CSSImportRule>(parentRule)->media(); |
| if (media.length() && media.mediaText() != "all") { |
| ruleGroupingPayload = Inspector::Protocol::CSS::Grouping::create() |
| .setText(media.mediaText()) |
| .setType(Inspector::Protocol::CSS::Grouping::Type::MediaImportRule) |
| .release(); |
| } |
| } else if (is<CSSSupportsRule>(parentRule)) { |
| ruleGroupingPayload = Inspector::Protocol::CSS::Grouping::create() |
| .setText(downcast<CSSSupportsRule>(parentRule)->conditionText()) |
| .setType(Inspector::Protocol::CSS::Grouping::Type::SupportsRule) |
| .release(); |
| } |
| |
| if (ruleGroupingPayload) { |
| if (auto* parentStyleSheet = parentRule->parentStyleSheet()) { |
| String sourceURL = parentStyleSheet->contents().baseURL(); |
| if (sourceURL.isEmpty()) { |
| if (auto* ownerDocument = parentStyleSheet->ownerDocument()) |
| sourceURL = InspectorDOMAgent::documentURLString(ownerDocument); |
| } |
| if (!sourceURL.isEmpty()) |
| ruleGroupingPayload->setSourceURL(sourceURL); |
| } |
| |
| groupingsPayload->addItem(WTFMove(ruleGroupingPayload)); |
| } |
| |
| if (parentRule->parentRule()) { |
| parentRule = parentRule->parentRule(); |
| continue; |
| } |
| |
| auto* styleSheet = parentRule->parentStyleSheet(); |
| while (styleSheet) { |
| auto* media = styleSheet->media(); |
| if (media && media->length() && media->mediaText() != "all") { |
| auto sheetGroupingPayload = Inspector::Protocol::CSS::Grouping::create() |
| .setText(media->mediaText()) |
| .setType(is<HTMLStyleElement>(styleSheet->ownerNode()) ? Inspector::Protocol::CSS::Grouping::Type::MediaStyleNode: Inspector::Protocol::CSS::Grouping::Type::MediaLinkNode) |
| .release(); |
| |
| String sourceURL; |
| if (auto* ownerDocument = styleSheet->ownerDocument()) |
| sourceURL = ownerDocument->url(); |
| else if (!styleSheet->contents().baseURL().isEmpty()) |
| sourceURL = styleSheet->contents().baseURL(); |
| if (!sourceURL.isEmpty()) |
| sheetGroupingPayload->setSourceURL(sourceURL); |
| |
| groupingsPayload->addItem(WTFMove(sheetGroupingPayload)); |
| } |
| |
| parentRule = styleSheet->ownerRule(); |
| if (parentRule) |
| break; |
| |
| styleSheet = styleSheet->parentStyleSheet(); |
| } |
| } |
| |
| return groupingsPayload; |
| } |
| |
| Ref<InspectorStyle> InspectorStyle::create(const InspectorCSSId& styleId, Ref<CSSStyleDeclaration>&& style, InspectorStyleSheet* parentStyleSheet) |
| { |
| return adoptRef(*new InspectorStyle(styleId, WTFMove(style), parentStyleSheet)); |
| } |
| |
| InspectorStyle::InspectorStyle(const InspectorCSSId& styleId, Ref<CSSStyleDeclaration>&& style, InspectorStyleSheet* parentStyleSheet) |
| : m_styleId(styleId) |
| , m_style(WTFMove(style)) |
| , m_parentStyleSheet(parentStyleSheet) |
| { |
| } |
| |
| InspectorStyle::~InspectorStyle() = default; |
| |
| RefPtr<Inspector::Protocol::CSS::CSSStyle> InspectorStyle::buildObjectForStyle() const |
| { |
| Ref<Inspector::Protocol::CSS::CSSStyle> result = styleWithProperties(); |
| if (!m_styleId.isEmpty()) |
| result->setStyleId(m_styleId.asProtocolValue<Inspector::Protocol::CSS::CSSStyleId>()); |
| |
| result->setWidth(m_style->getPropertyValue("width")); |
| result->setHeight(m_style->getPropertyValue("height")); |
| |
| RefPtr<CSSRuleSourceData> sourceData = extractSourceData(); |
| if (sourceData) |
| result->setRange(buildSourceRangeObject(sourceData->ruleBodyRange, m_parentStyleSheet->lineEndings())); |
| |
| return result; |
| } |
| |
| Ref<JSON::ArrayOf<Inspector::Protocol::CSS::CSSComputedStyleProperty>> InspectorStyle::buildArrayForComputedStyle() const |
| { |
| auto result = JSON::ArrayOf<Inspector::Protocol::CSS::CSSComputedStyleProperty>::create(); |
| for (auto& property : collectProperties(true)) { |
| const CSSPropertySourceData& propertyEntry = property.sourceData; |
| auto entry = Inspector::Protocol::CSS::CSSComputedStyleProperty::create() |
| .setName(propertyEntry.name) |
| .setValue(propertyEntry.value) |
| .release(); |
| result->addItem(WTFMove(entry)); |
| } |
| return result; |
| } |
| |
| ExceptionOr<String> InspectorStyle::text() const |
| { |
| // Precondition: m_parentStyleSheet->ensureParsedDataReady() has been called successfully. |
| auto sourceData = extractSourceData(); |
| if (!sourceData) |
| return Exception { NotFoundError }; |
| |
| auto result = m_parentStyleSheet->text(); |
| if (result.hasException()) |
| return result.releaseException(); |
| |
| auto& bodyRange = sourceData->ruleBodyRange; |
| return result.releaseReturnValue().substring(bodyRange.start, bodyRange.end - bodyRange.start); |
| } |
| |
| static String lowercasePropertyName(const String& name) |
| { |
| // Custom properties are case-sensitive. |
| if (name.startsWith("--")) |
| return name; |
| return name.convertToASCIILowercase(); |
| } |
| |
| Vector<InspectorStyleProperty> InspectorStyle::collectProperties(bool includeAll) const |
| { |
| Vector<InspectorStyleProperty> result; |
| HashSet<String> sourcePropertyNames; |
| |
| auto sourceData = extractSourceData(); |
| auto* sourcePropertyData = sourceData ? &sourceData->styleSourceData->propertyData : nullptr; |
| if (sourcePropertyData) { |
| auto styleDeclarationOrException = text(); |
| ASSERT(!styleDeclarationOrException.hasException()); |
| String styleDeclaration = styleDeclarationOrException.hasException() ? emptyString() : styleDeclarationOrException.releaseReturnValue(); |
| for (auto& sourceData : *sourcePropertyData) { |
| InspectorStyleProperty p(sourceData, true, sourceData.disabled); |
| p.setRawTextFromStyleDeclaration(styleDeclaration); |
| result.append(p); |
| sourcePropertyNames.add(lowercasePropertyName(sourceData.name)); |
| } |
| } |
| |
| for (int i = 0, size = m_style->length(); i < size; ++i) { |
| String name = m_style->item(i); |
| if (sourcePropertyNames.add(lowercasePropertyName(name))) |
| result.append(InspectorStyleProperty(CSSPropertySourceData(name, m_style->getPropertyValue(name), !m_style->getPropertyPriority(name).isEmpty(), false, true, SourceRange()), false, false)); |
| } |
| |
| if (includeAll) { |
| for (auto i = firstCSSProperty; i < lastCSSProperty; ++i) { |
| auto id = convertToCSSPropertyID(i); |
| if (isInternalCSSProperty(id) || !isEnabledCSSProperty(id)) |
| continue; |
| |
| auto name = getPropertyNameString(id); |
| if (!sourcePropertyNames.add(lowercasePropertyName(name))) |
| continue; |
| |
| auto value = m_style->getPropertyValue(name); |
| if (value.isEmpty()) |
| continue; |
| |
| result.append(InspectorStyleProperty(CSSPropertySourceData(name, value, !m_style->getPropertyPriority(name).isEmpty(), false, true, SourceRange()), false, false)); |
| } |
| } |
| |
| return result; |
| } |
| |
| Ref<Inspector::Protocol::CSS::CSSStyle> InspectorStyle::styleWithProperties() const |
| { |
| auto properties = collectProperties(false); |
| |
| auto propertiesObject = JSON::ArrayOf<Inspector::Protocol::CSS::CSSProperty>::create(); |
| auto shorthandEntries = ArrayOf<Inspector::Protocol::CSS::ShorthandEntry>::create(); |
| HashMap<String, RefPtr<Inspector::Protocol::CSS::CSSProperty>> propertyNameToPreviousActiveProperty; |
| HashSet<String> foundShorthands; |
| String previousPriority; |
| String previousStatus; |
| Vector<size_t> lineEndings = m_parentStyleSheet ? m_parentStyleSheet->lineEndings() : Vector<size_t> { }; |
| auto sourceData = extractSourceData(); |
| unsigned ruleBodyRangeStart = sourceData ? sourceData->ruleBodyRange.start : 0; |
| |
| for (Vector<InspectorStyleProperty>::iterator it = properties.begin(), itEnd = properties.end(); it != itEnd; ++it) { |
| const CSSPropertySourceData& propertyEntry = it->sourceData; |
| const String& name = propertyEntry.name; |
| |
| auto status = it->disabled ? Inspector::Protocol::CSS::CSSPropertyStatus::Disabled : Inspector::Protocol::CSS::CSSPropertyStatus::Active; |
| |
| auto property = Inspector::Protocol::CSS::CSSProperty::create() |
| .setName(name.convertToASCIILowercase()) |
| .setValue(propertyEntry.value) |
| .release(); |
| |
| propertiesObject->addItem(property.copyRef()); |
| |
| CSSPropertyID propertyId = cssPropertyID(name); |
| |
| // Default "parsedOk" == true. |
| if (!propertyEntry.parsedOk || isInternalCSSProperty(propertyId)) |
| property->setParsedOk(false); |
| if (it->hasRawText()) |
| property->setText(it->rawText); |
| |
| // Default "priority" == "". |
| if (propertyEntry.important) |
| property->setPriority("important"); |
| |
| if (it->hasSource) { |
| // The property range is relative to the style body start. |
| // Should be converted into an absolute range (relative to the stylesheet start) |
| // for the proper conversion into line:column. |
| SourceRange absolutePropertyRange = propertyEntry.range; |
| absolutePropertyRange.start += ruleBodyRangeStart; |
| absolutePropertyRange.end += ruleBodyRangeStart; |
| property->setRange(buildSourceRangeObject(absolutePropertyRange, lineEndings)); |
| } |
| |
| if (!it->disabled) { |
| if (it->hasSource) { |
| ASSERT(sourceData); |
| property->setImplicit(false); |
| |
| // Parsed property overrides any property with the same name. Non-parsed property overrides |
| // previous non-parsed property with the same name (if any). |
| bool shouldInactivate = false; |
| |
| // Canonicalize property names to treat non-prefixed and vendor-prefixed property names the same (opacity vs. -webkit-opacity). |
| String canonicalPropertyName = propertyId ? getPropertyNameString(propertyId) : name; |
| HashMap<String, RefPtr<Inspector::Protocol::CSS::CSSProperty>>::iterator activeIt = propertyNameToPreviousActiveProperty.find(canonicalPropertyName); |
| if (activeIt != propertyNameToPreviousActiveProperty.end()) { |
| if (propertyEntry.parsedOk) { |
| bool successPriority = activeIt->value->getString(Inspector::Protocol::CSS::CSSProperty::Priority, previousPriority); |
| bool successStatus = activeIt->value->getString(Inspector::Protocol::CSS::CSSProperty::Status, previousStatus); |
| if (successStatus && previousStatus != "inactive") { |
| if (propertyEntry.important || !successPriority) // Priority not set == "not important". |
| shouldInactivate = true; |
| else if (status == Inspector::Protocol::CSS::CSSPropertyStatus::Active) { |
| // Inactivate a non-important property following the same-named important property. |
| status = Inspector::Protocol::CSS::CSSPropertyStatus::Inactive; |
| } |
| } |
| } else { |
| bool previousParsedOk; |
| bool success = activeIt->value->getBoolean(Inspector::Protocol::CSS::CSSProperty::ParsedOk, previousParsedOk); |
| if (success && !previousParsedOk) |
| shouldInactivate = true; |
| } |
| } else |
| propertyNameToPreviousActiveProperty.set(canonicalPropertyName, property.copyRef()); |
| |
| if (shouldInactivate) { |
| activeIt->value->setStatus(Inspector::Protocol::CSS::CSSPropertyStatus::Inactive); |
| propertyNameToPreviousActiveProperty.set(canonicalPropertyName, property.copyRef()); |
| } |
| } else { |
| bool implicit = m_style->isPropertyImplicit(name); |
| // Default "implicit" == false. |
| if (implicit) |
| property->setImplicit(true); |
| status = Inspector::Protocol::CSS::CSSPropertyStatus::Style; |
| |
| String shorthand = m_style->getPropertyShorthand(name); |
| if (!shorthand.isEmpty()) { |
| if (!foundShorthands.contains(shorthand)) { |
| foundShorthands.add(shorthand); |
| auto entry = Inspector::Protocol::CSS::ShorthandEntry::create() |
| .setName(shorthand) |
| .setValue(shorthandValue(shorthand)) |
| .release(); |
| shorthandEntries->addItem(WTFMove(entry)); |
| } |
| } |
| } |
| } |
| |
| // Default "status" == "style". |
| if (status != Inspector::Protocol::CSS::CSSPropertyStatus::Style) |
| property->setStatus(status); |
| } |
| |
| return Inspector::Protocol::CSS::CSSStyle::create() |
| .setCssProperties(WTFMove(propertiesObject)) |
| .setShorthandEntries(WTFMove(shorthandEntries)) |
| .release(); |
| } |
| |
| RefPtr<CSSRuleSourceData> InspectorStyle::extractSourceData() const |
| { |
| if (!m_parentStyleSheet || !m_parentStyleSheet->ensureParsedDataReady()) |
| return nullptr; |
| return m_parentStyleSheet->ruleSourceDataFor(m_style.ptr()); |
| } |
| |
| ExceptionOr<void> InspectorStyle::setText(const String& text) |
| { |
| return m_parentStyleSheet->setStyleText(m_style.ptr(), text); |
| } |
| |
| String InspectorStyle::shorthandValue(const String& shorthandProperty) const |
| { |
| String value = m_style->getPropertyValue(shorthandProperty); |
| if (!value.isEmpty()) |
| return value; |
| StringBuilder builder; |
| for (unsigned i = 0; i < m_style->length(); ++i) { |
| String individualProperty = m_style->item(i); |
| if (m_style->getPropertyShorthand(individualProperty) != shorthandProperty) |
| continue; |
| if (m_style->isPropertyImplicit(individualProperty)) |
| continue; |
| String individualValue = m_style->getPropertyValue(individualProperty); |
| if (individualValue == "initial") |
| continue; |
| if (!builder.isEmpty()) |
| builder.append(' '); |
| builder.append(individualValue); |
| } |
| return builder.toString(); |
| } |
| |
| String InspectorStyle::shorthandPriority(const String& shorthandProperty) const |
| { |
| String priority = m_style->getPropertyPriority(shorthandProperty); |
| if (priority.isEmpty()) { |
| for (unsigned i = 0; i < m_style->length(); ++i) { |
| String individualProperty = m_style->item(i); |
| if (m_style->getPropertyShorthand(individualProperty) != shorthandProperty) |
| continue; |
| priority = m_style->getPropertyPriority(individualProperty); |
| break; |
| } |
| } |
| return priority; |
| } |
| |
| Vector<String> InspectorStyle::longhandProperties(const String& shorthandProperty) const |
| { |
| Vector<String> properties; |
| HashSet<String> foundProperties; |
| for (unsigned i = 0; i < m_style->length(); ++i) { |
| String individualProperty = m_style->item(i); |
| if (foundProperties.contains(individualProperty) || m_style->getPropertyShorthand(individualProperty) != shorthandProperty) |
| continue; |
| |
| foundProperties.add(individualProperty); |
| properties.append(individualProperty); |
| } |
| return properties; |
| } |
| |
| Ref<InspectorStyleSheet> InspectorStyleSheet::create(InspectorPageAgent* pageAgent, const String& id, RefPtr<CSSStyleSheet>&& pageStyleSheet, Inspector::Protocol::CSS::StyleSheetOrigin origin, const String& documentURL, Listener* listener) |
| { |
| return adoptRef(*new InspectorStyleSheet(pageAgent, id, WTFMove(pageStyleSheet), origin, documentURL, listener)); |
| } |
| |
| String InspectorStyleSheet::styleSheetURL(CSSStyleSheet* pageStyleSheet) |
| { |
| if (pageStyleSheet && !pageStyleSheet->contents().baseURL().isEmpty()) |
| return pageStyleSheet->contents().baseURL().string(); |
| return emptyString(); |
| } |
| |
| InspectorStyleSheet::InspectorStyleSheet(InspectorPageAgent* pageAgent, const String& id, RefPtr<CSSStyleSheet>&& pageStyleSheet, Inspector::Protocol::CSS::StyleSheetOrigin origin, const String& documentURL, Listener* listener) |
| : m_pageAgent(pageAgent) |
| , m_id(id) |
| , m_pageStyleSheet(WTFMove(pageStyleSheet)) |
| , m_origin(origin) |
| , m_documentURL(documentURL) |
| , m_listener(listener) |
| { |
| m_parsedStyleSheet = new ParsedStyleSheet(); |
| } |
| |
| InspectorStyleSheet::~InspectorStyleSheet() |
| { |
| delete m_parsedStyleSheet; |
| } |
| |
| String InspectorStyleSheet::finalURL() const |
| { |
| String url = styleSheetURL(m_pageStyleSheet.get()); |
| return url.isEmpty() ? m_documentURL : url; |
| } |
| |
| void InspectorStyleSheet::reparseStyleSheet(const String& text) |
| { |
| { |
| // Have a separate scope for clearRules() (bug 95324). |
| CSSStyleSheet::RuleMutationScope mutationScope(m_pageStyleSheet.get()); |
| m_pageStyleSheet->contents().clearRules(); |
| } |
| { |
| CSSStyleSheet::RuleMutationScope mutationScope(m_pageStyleSheet.get()); |
| m_pageStyleSheet->contents().parseString(text); |
| m_pageStyleSheet->clearChildRuleCSSOMWrappers(); |
| fireStyleSheetChanged(); |
| } |
| |
| // We just wiped the entire contents of the stylesheet. Clear the mutation flag. |
| m_pageStyleSheet->clearHadRulesMutation(); |
| } |
| |
| ExceptionOr<void> InspectorStyleSheet::setText(const String& text) |
| { |
| if (!m_pageStyleSheet) |
| return Exception { NotSupportedError }; |
| |
| m_parsedStyleSheet->setText(text); |
| m_flatRules.clear(); |
| |
| return { }; |
| } |
| |
| ExceptionOr<String> InspectorStyleSheet::ruleSelector(const InspectorCSSId& id) |
| { |
| CSSStyleRule* rule = ruleForId(id); |
| if (!rule) |
| return Exception { NotFoundError }; |
| return rule->selectorText(); |
| } |
| |
| static bool isValidSelectorListString(const String& selector, Document* document) |
| { |
| CSSSelectorList selectorList; |
| CSSParser parser(parserContextForDocument(document)); |
| parser.parseSelector(selector, selectorList); |
| return selectorList.isValid(); |
| } |
| |
| ExceptionOr<void> InspectorStyleSheet::setRuleSelector(const InspectorCSSId& id, const String& selector) |
| { |
| if (!m_pageStyleSheet) |
| return Exception { NotSupportedError }; |
| |
| // If the selector is invalid, do not proceed any further. |
| if (!isValidSelectorListString(selector, m_pageStyleSheet->ownerDocument())) |
| return Exception { SyntaxError }; |
| |
| CSSStyleRule* rule = ruleForId(id); |
| if (!rule) |
| return Exception { NotFoundError }; |
| |
| CSSStyleSheet* styleSheet = rule->parentStyleSheet(); |
| if (!styleSheet || !ensureParsedDataReady()) |
| return Exception { NotFoundError }; |
| |
| // If the stylesheet is already mutated at this point, that must mean that our data has been modified |
| // elsewhere. This should never happen as ensureParsedDataReady would return false in that case. |
| ASSERT(!styleSheetMutated()); |
| |
| rule->setSelectorText(selector); |
| auto sourceData = ruleSourceDataFor(&rule->style()); |
| if (!sourceData) |
| return Exception { NotFoundError }; |
| |
| String sheetText = m_parsedStyleSheet->text(); |
| sheetText.replace(sourceData->ruleHeaderRange.start, sourceData->ruleHeaderRange.length(), selector); |
| m_parsedStyleSheet->setText(sheetText); |
| m_pageStyleSheet->clearHadRulesMutation(); |
| fireStyleSheetChanged(); |
| return { }; |
| } |
| |
| ExceptionOr<CSSStyleRule*> InspectorStyleSheet::addRule(const String& selector) |
| { |
| if (!m_pageStyleSheet) |
| return Exception { NotSupportedError }; |
| |
| if (!isValidSelectorListString(selector, m_pageStyleSheet->ownerDocument())) |
| return Exception { SyntaxError }; |
| |
| auto text = this->text(); |
| if (text.hasException()) |
| return text.releaseException(); |
| |
| auto addRuleResult = m_pageStyleSheet->addRule(selector, emptyString(), WTF::nullopt); |
| if (addRuleResult.hasException()) |
| return addRuleResult.releaseException(); |
| |
| StringBuilder styleSheetText; |
| styleSheetText.append(text.releaseReturnValue()); |
| |
| if (!styleSheetText.isEmpty()) |
| styleSheetText.append('\n'); |
| |
| styleSheetText.append(selector); |
| styleSheetText.appendLiteral(" {}"); |
| |
| // Using setText() as this operation changes the stylesheet rule set. |
| setText(styleSheetText.toString()); |
| |
| // Inspector Style Sheets are always treated as though their parsed data is ready. |
| if (m_origin == Inspector::Protocol::CSS::StyleSheetOrigin::Inspector) |
| fireStyleSheetChanged(); |
| else |
| reparseStyleSheet(styleSheetText.toString()); |
| |
| ASSERT(m_pageStyleSheet->length()); |
| unsigned lastRuleIndex = m_pageStyleSheet->length() - 1; |
| CSSRule* rule = m_pageStyleSheet->item(lastRuleIndex); |
| ASSERT(rule); |
| |
| CSSStyleRule* styleRule = InspectorCSSAgent::asCSSStyleRule(*rule); |
| if (!styleRule) { |
| // What we just added has to be a CSSStyleRule - we cannot handle other types of rules yet. |
| // If it is not a style rule, pretend we never touched the stylesheet. |
| m_pageStyleSheet->deleteRule(lastRuleIndex); |
| return Exception { SyntaxError }; |
| } |
| |
| return styleRule; |
| } |
| |
| ExceptionOr<void> InspectorStyleSheet::deleteRule(const InspectorCSSId& id) |
| { |
| if (!m_pageStyleSheet) |
| return Exception { NotSupportedError }; |
| |
| RefPtr<CSSStyleRule> rule = ruleForId(id); |
| if (!rule) |
| return Exception { NotFoundError }; |
| CSSStyleSheet* styleSheet = rule->parentStyleSheet(); |
| if (!styleSheet || !ensureParsedDataReady()) |
| return Exception { NotFoundError }; |
| |
| auto sourceData = ruleSourceDataFor(&rule->style()); |
| if (!sourceData) |
| return Exception { NotFoundError }; |
| |
| auto deleteRuleResult = styleSheet->deleteRule(id.ordinal()); |
| if (deleteRuleResult.hasException()) |
| return deleteRuleResult.releaseException(); |
| |
| // |rule| MAY NOT be addressed after this! |
| |
| String sheetText = m_parsedStyleSheet->text(); |
| sheetText.remove(sourceData->ruleHeaderRange.start, sourceData->ruleBodyRange.end - sourceData->ruleHeaderRange.start + 1); |
| setText(sheetText); |
| fireStyleSheetChanged(); |
| return { }; |
| } |
| |
| CSSStyleRule* InspectorStyleSheet::ruleForId(const InspectorCSSId& id) const |
| { |
| if (!m_pageStyleSheet) |
| return nullptr; |
| |
| ASSERT(!id.isEmpty()); |
| ensureFlatRules(); |
| return id.ordinal() >= m_flatRules.size() ? nullptr : m_flatRules.at(id.ordinal()).get(); |
| } |
| |
| RefPtr<Inspector::Protocol::CSS::CSSStyleSheetBody> InspectorStyleSheet::buildObjectForStyleSheet() |
| { |
| CSSStyleSheet* styleSheet = pageStyleSheet(); |
| if (!styleSheet) |
| return nullptr; |
| |
| RefPtr<CSSRuleList> cssRuleList = asCSSRuleList(styleSheet); |
| |
| auto result = Inspector::Protocol::CSS::CSSStyleSheetBody::create() |
| .setStyleSheetId(id()) |
| .setRules(buildArrayForRuleList(cssRuleList.get())) |
| .release(); |
| |
| auto styleSheetText = text(); |
| if (!styleSheetText.hasException()) |
| result->setText(styleSheetText.releaseReturnValue()); |
| |
| return result; |
| } |
| |
| RefPtr<Inspector::Protocol::CSS::CSSStyleSheetHeader> InspectorStyleSheet::buildObjectForStyleSheetInfo() |
| { |
| CSSStyleSheet* styleSheet = pageStyleSheet(); |
| if (!styleSheet) |
| return nullptr; |
| |
| Document* document = styleSheet->ownerDocument(); |
| Frame* frame = document ? document->frame() : nullptr; |
| return Inspector::Protocol::CSS::CSSStyleSheetHeader::create() |
| .setStyleSheetId(id()) |
| .setOrigin(m_origin) |
| .setDisabled(styleSheet->disabled()) |
| .setSourceURL(finalURL()) |
| .setTitle(styleSheet->title()) |
| .setFrameId(m_pageAgent->frameId(frame)) |
| .setIsInline(styleSheet->isInline() && styleSheet->startPosition() != TextPosition()) |
| .setStartLine(styleSheet->startPosition().m_line.zeroBasedInt()) |
| .setStartColumn(styleSheet->startPosition().m_column.zeroBasedInt()) |
| .release(); |
| } |
| |
| static bool hasDynamicSpecificity(const CSSSelector& simpleSelector) |
| { |
| // It is possible that these can have a static specificity if each selector in the list has |
| // equal specificity, but lets always report that they can be dynamic. |
| for (const CSSSelector* selector = &simpleSelector; selector; selector = selector->tagHistory()) { |
| if (selector->match() == CSSSelector::PseudoClass) { |
| CSSSelector::PseudoClassType pseudoClassType = selector->pseudoClassType(); |
| if (pseudoClassType == CSSSelector::PseudoClassMatches) |
| return true; |
| if (pseudoClassType == CSSSelector::PseudoClassNthChild || pseudoClassType == CSSSelector::PseudoClassNthLastChild) { |
| if (selector->selectorList()) |
| return true; |
| return false; |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| static Ref<Inspector::Protocol::CSS::CSSSelector> buildObjectForSelectorHelper(const String& selectorText, const CSSSelector& selector, Element* element) |
| { |
| auto inspectorSelector = Inspector::Protocol::CSS::CSSSelector::create() |
| .setText(selectorText) |
| .release(); |
| |
| if (element) { |
| bool dynamic = hasDynamicSpecificity(selector); |
| if (dynamic) |
| inspectorSelector->setDynamic(true); |
| |
| SelectorChecker::CheckingContext context(SelectorChecker::Mode::CollectingRules); |
| SelectorChecker selectorChecker(element->document()); |
| |
| unsigned specificity; |
| bool okay = selectorChecker.match(selector, *element, context, specificity); |
| if (!okay) |
| specificity = selector.staticSpecificity(okay); |
| |
| if (okay) { |
| auto tuple = JSON::ArrayOf<int>::create(); |
| tuple->addItem(static_cast<int>((specificity & CSSSelector::idMask) >> 16)); |
| tuple->addItem(static_cast<int>((specificity & CSSSelector::classMask) >> 8)); |
| tuple->addItem(static_cast<int>(specificity & CSSSelector::elementMask)); |
| inspectorSelector->setSpecificity(WTFMove(tuple)); |
| } |
| } |
| |
| return inspectorSelector; |
| } |
| |
| static Ref<JSON::ArrayOf<Inspector::Protocol::CSS::CSSSelector>> selectorsFromSource(const CSSRuleSourceData* sourceData, const String& sheetText, const CSSSelectorList& selectorList, Element* element) |
| { |
| static NeverDestroyed<JSC::Yarr::RegularExpression> comment("/\\*[^]*?\\*/", JSC::Yarr::TextCaseSensitive, JSC::Yarr::MultilineEnabled); |
| |
| auto result = JSON::ArrayOf<Inspector::Protocol::CSS::CSSSelector>::create(); |
| const CSSSelector* selector = selectorList.first(); |
| for (auto& range : sourceData->selectorRanges) { |
| // If we don't have a selector, that means the SourceData for this CSSStyleSheet |
| // no longer matches up with the actual rules in the CSSStyleSheet. |
| ASSERT(selector); |
| if (!selector) |
| break; |
| |
| String selectorText = sheetText.substring(range.start, range.length()); |
| |
| // We don't want to see any comments in the selector components, only the meaningful parts. |
| replace(selectorText, comment, String()); |
| result->addItem(buildObjectForSelectorHelper(selectorText.stripWhiteSpace(), *selector, element)); |
| |
| selector = CSSSelectorList::next(selector); |
| } |
| return result; |
| } |
| |
| Ref<Inspector::Protocol::CSS::CSSSelector> InspectorStyleSheet::buildObjectForSelector(const CSSSelector* selector, Element* element) |
| { |
| return buildObjectForSelectorHelper(selector->selectorText(), *selector, element); |
| } |
| |
| Ref<Inspector::Protocol::CSS::SelectorList> InspectorStyleSheet::buildObjectForSelectorList(CSSStyleRule* rule, Element* element, int& endingLine) |
| { |
| RefPtr<CSSRuleSourceData> sourceData; |
| if (ensureParsedDataReady()) |
| sourceData = ruleSourceDataFor(&rule->style()); |
| RefPtr<JSON::ArrayOf<Inspector::Protocol::CSS::CSSSelector>> selectors; |
| |
| // This intentionally does not rely on the source data to avoid catching the trailing comments (before the declaration starting '{'). |
| String selectorText = rule->selectorText(); |
| |
| if (sourceData) |
| selectors = selectorsFromSource(sourceData.get(), m_parsedStyleSheet->text(), rule->styleRule().selectorList(), element); |
| else { |
| selectors = JSON::ArrayOf<Inspector::Protocol::CSS::CSSSelector>::create(); |
| const CSSSelectorList& selectorList = rule->styleRule().selectorList(); |
| for (const CSSSelector* selector = selectorList.first(); selector; selector = CSSSelectorList::next(selector)) |
| selectors->addItem(buildObjectForSelector(selector, element)); |
| } |
| auto result = Inspector::Protocol::CSS::SelectorList::create() |
| .setSelectors(WTFMove(selectors)) |
| .setText(selectorText) |
| .release(); |
| if (sourceData) |
| result->setRange(buildSourceRangeObject(sourceData->ruleHeaderRange, lineEndings(), &endingLine)); |
| return result; |
| } |
| |
| RefPtr<Inspector::Protocol::CSS::CSSRule> InspectorStyleSheet::buildObjectForRule(CSSStyleRule* rule, Element* element) |
| { |
| CSSStyleSheet* styleSheet = pageStyleSheet(); |
| if (!styleSheet) |
| return nullptr; |
| |
| int endingLine = 0; |
| auto result = Inspector::Protocol::CSS::CSSRule::create() |
| .setSelectorList(buildObjectForSelectorList(rule, element, endingLine)) |
| .setSourceLine(endingLine) |
| .setOrigin(m_origin) |
| .setStyle(buildObjectForStyle(&rule->style())) |
| .release(); |
| |
| if (m_origin == Inspector::Protocol::CSS::StyleSheetOrigin::Regular || m_origin == Inspector::Protocol::CSS::StyleSheetOrigin::User) |
| result->setSourceURL(finalURL()); |
| |
| if (canBind()) { |
| InspectorCSSId id(ruleId(rule)); |
| if (!id.isEmpty()) |
| result->setRuleId(id.asProtocolValue<Inspector::Protocol::CSS::CSSRuleId>()); |
| } |
| |
| auto groupingsPayload = buildArrayForGroupings(*rule); |
| if (groupingsPayload->length()) |
| result->setGroupings(WTFMove(groupingsPayload)); |
| |
| return result; |
| } |
| |
| RefPtr<Inspector::Protocol::CSS::CSSStyle> InspectorStyleSheet::buildObjectForStyle(CSSStyleDeclaration* style) |
| { |
| RefPtr<CSSRuleSourceData> sourceData; |
| if (ensureParsedDataReady()) |
| sourceData = ruleSourceDataFor(style); |
| |
| InspectorCSSId id = ruleOrStyleId(style); |
| if (id.isEmpty()) { |
| return Inspector::Protocol::CSS::CSSStyle::create() |
| .setCssProperties(ArrayOf<Inspector::Protocol::CSS::CSSProperty>::create()) |
| .setShorthandEntries(ArrayOf<Inspector::Protocol::CSS::ShorthandEntry>::create()) |
| .release(); |
| } |
| RefPtr<InspectorStyle> inspectorStyle = inspectorStyleForId(id); |
| RefPtr<Inspector::Protocol::CSS::CSSStyle> result = inspectorStyle->buildObjectForStyle(); |
| |
| // Style text cannot be retrieved without stylesheet, so set cssText here. |
| if (sourceData) { |
| auto sheetText = text(); |
| if (!sheetText.hasException()) { |
| auto& bodyRange = sourceData->ruleBodyRange; |
| result->setCssText(sheetText.releaseReturnValue().substring(bodyRange.start, bodyRange.end - bodyRange.start)); |
| } |
| } |
| |
| return result; |
| } |
| |
| ExceptionOr<void> InspectorStyleSheet::setStyleText(const InspectorCSSId& id, const String& text, String* oldText) |
| { |
| auto inspectorStyle = inspectorStyleForId(id); |
| if (!inspectorStyle) |
| return Exception { NotFoundError }; |
| |
| if (oldText) { |
| auto result = inspectorStyle->text(); |
| if (result.hasException()) |
| return result.releaseException(); |
| *oldText = result.releaseReturnValue(); |
| } |
| |
| auto result = inspectorStyle->setText(text); |
| if (!result.hasException()) |
| fireStyleSheetChanged(); |
| return result; |
| } |
| |
| ExceptionOr<String> InspectorStyleSheet::text() const |
| { |
| if (!ensureText()) |
| return Exception { NotFoundError }; |
| return String { m_parsedStyleSheet->text() }; |
| } |
| |
| CSSStyleDeclaration* InspectorStyleSheet::styleForId(const InspectorCSSId& id) const |
| { |
| CSSStyleRule* rule = ruleForId(id); |
| if (!rule) |
| return nullptr; |
| |
| return &rule->style(); |
| } |
| |
| void InspectorStyleSheet::fireStyleSheetChanged() |
| { |
| if (m_listener) |
| m_listener->styleSheetChanged(this); |
| } |
| |
| RefPtr<InspectorStyle> InspectorStyleSheet::inspectorStyleForId(const InspectorCSSId& id) |
| { |
| CSSStyleDeclaration* style = styleForId(id); |
| if (!style) |
| return nullptr; |
| |
| return InspectorStyle::create(id, *style, this); |
| } |
| |
| InspectorCSSId InspectorStyleSheet::ruleOrStyleId(CSSStyleDeclaration* style) const |
| { |
| unsigned index = ruleIndexByStyle(style); |
| if (index != UINT_MAX) |
| return InspectorCSSId(id(), index); |
| return InspectorCSSId(); |
| } |
| |
| Document* InspectorStyleSheet::ownerDocument() const |
| { |
| return m_pageStyleSheet->ownerDocument(); |
| } |
| |
| RefPtr<CSSRuleSourceData> InspectorStyleSheet::ruleSourceDataFor(CSSStyleDeclaration* style) const |
| { |
| return m_parsedStyleSheet->ruleSourceDataAt(ruleIndexByStyle(style)); |
| } |
| |
| Vector<size_t> InspectorStyleSheet::lineEndings() const |
| { |
| if (!m_parsedStyleSheet->hasText()) |
| return { }; |
| return ContentSearchUtilities::lineEndings(m_parsedStyleSheet->text()); |
| } |
| |
| unsigned InspectorStyleSheet::ruleIndexByStyle(CSSStyleDeclaration* pageStyle) const |
| { |
| ensureFlatRules(); |
| unsigned index = 0; |
| for (auto& rule : m_flatRules) { |
| if (&rule->style() == pageStyle) |
| return index; |
| |
| ++index; |
| } |
| return UINT_MAX; |
| } |
| |
| bool InspectorStyleSheet::styleSheetMutated() const |
| { |
| return m_pageStyleSheet && m_pageStyleSheet->hadRulesMutation(); |
| } |
| |
| bool InspectorStyleSheet::ensureParsedDataReady() |
| { |
| bool allowParsedData = m_origin == Inspector::Protocol::CSS::StyleSheetOrigin::Inspector || !styleSheetMutated(); |
| return allowParsedData && ensureText() && ensureSourceData(); |
| } |
| |
| bool InspectorStyleSheet::ensureText() const |
| { |
| if (!m_parsedStyleSheet) |
| return false; |
| if (m_parsedStyleSheet->hasText()) |
| return true; |
| |
| String text; |
| bool success = originalStyleSheetText(&text); |
| if (success) |
| m_parsedStyleSheet->setText(text); |
| // No need to clear m_flatRules here - it's empty. |
| |
| return success; |
| } |
| |
| bool InspectorStyleSheet::ensureSourceData() |
| { |
| if (m_parsedStyleSheet->hasSourceData()) |
| return true; |
| |
| if (!m_parsedStyleSheet->hasText()) |
| return false; |
| |
| auto newStyleSheet = StyleSheetContents::create(); |
| auto ruleSourceDataResult = makeUnique<RuleSourceDataList>(); |
| |
| CSSParserContext context(parserContextForDocument(m_pageStyleSheet->ownerDocument())); |
| StyleSheetHandler handler(m_parsedStyleSheet->text(), m_pageStyleSheet->ownerDocument(), ruleSourceDataResult.get()); |
| CSSParser::parseSheetForInspector(context, newStyleSheet.ptr(), m_parsedStyleSheet->text(), handler); |
| m_parsedStyleSheet->setSourceData(WTFMove(ruleSourceDataResult)); |
| return m_parsedStyleSheet->hasSourceData(); |
| } |
| |
| void InspectorStyleSheet::ensureFlatRules() const |
| { |
| // We are fine with redoing this for empty stylesheets as this will run fast. |
| if (m_flatRules.isEmpty()) |
| collectFlatRules(asCSSRuleList(pageStyleSheet()), &m_flatRules); |
| } |
| |
| ExceptionOr<void> InspectorStyleSheet::setStyleText(CSSStyleDeclaration* style, const String& text) |
| { |
| if (!m_pageStyleSheet) |
| return Exception { NotFoundError }; |
| if (!ensureParsedDataReady()) |
| return Exception { NotFoundError }; |
| |
| String patchedStyleSheetText; |
| bool success = styleSheetTextWithChangedStyle(style, text, &patchedStyleSheetText); |
| if (!success) |
| return Exception { NotFoundError }; |
| |
| InspectorCSSId id = ruleOrStyleId(style); |
| if (id.isEmpty()) |
| return Exception { NotFoundError }; |
| |
| auto setCssTextResult = style->setCssText(text); |
| if (setCssTextResult.hasException()) |
| return setCssTextResult.releaseException(); |
| |
| m_parsedStyleSheet->setText(patchedStyleSheetText); |
| return { }; |
| } |
| |
| bool InspectorStyleSheet::styleSheetTextWithChangedStyle(CSSStyleDeclaration* style, const String& newStyleText, String* result) |
| { |
| if (!style) |
| return false; |
| |
| if (!ensureParsedDataReady()) |
| return false; |
| |
| RefPtr<CSSRuleSourceData> sourceData = ruleSourceDataFor(style); |
| unsigned bodyStart = sourceData->ruleBodyRange.start; |
| unsigned bodyEnd = sourceData->ruleBodyRange.end; |
| ASSERT(bodyStart <= bodyEnd); |
| |
| String text = m_parsedStyleSheet->text(); |
| ASSERT_WITH_SECURITY_IMPLICATION(bodyEnd <= text.length()); // bodyEnd is exclusive |
| |
| text.replace(bodyStart, bodyEnd - bodyStart, newStyleText); |
| *result = text; |
| return true; |
| } |
| |
| InspectorCSSId InspectorStyleSheet::ruleId(CSSStyleRule* rule) const |
| { |
| return ruleOrStyleId(&rule->style()); |
| } |
| |
| bool InspectorStyleSheet::originalStyleSheetText(String* result) const |
| { |
| if (!m_pageStyleSheet || m_origin == Inspector::Protocol::CSS::StyleSheetOrigin::UserAgent) |
| return false; |
| return inlineStyleSheetText(result) || resourceStyleSheetText(result) || extensionStyleSheetText(result); |
| } |
| |
| bool InspectorStyleSheet::resourceStyleSheetText(String* result) const |
| { |
| if (!ownerDocument() || !ownerDocument()->frame()) |
| return false; |
| |
| String error; |
| bool base64Encoded; |
| InspectorPageAgent::resourceContent(error, ownerDocument()->frame(), URL({ }, m_pageStyleSheet->href()), result, &base64Encoded); |
| return error.isEmpty() && !base64Encoded; |
| } |
| |
| bool InspectorStyleSheet::inlineStyleSheetText(String* result) const |
| { |
| auto* ownerNode = m_pageStyleSheet->ownerNode(); |
| if (!is<Element>(ownerNode)) |
| return false; |
| |
| auto& ownerElement = downcast<Element>(*ownerNode); |
| if (!is<HTMLStyleElement>(ownerElement) && !is<SVGStyleElement>(ownerElement)) |
| return false; |
| |
| *result = ownerElement.textContent(); |
| return true; |
| } |
| |
| bool InspectorStyleSheet::extensionStyleSheetText(String* result) const |
| { |
| if (!ownerDocument()) |
| return false; |
| |
| auto content = ownerDocument()->extensionStyleSheets().contentForInjectedStyleSheet(m_pageStyleSheet); |
| if (content.isEmpty()) |
| return false; |
| |
| *result = content; |
| return true; |
| } |
| |
| Ref<JSON::ArrayOf<Inspector::Protocol::CSS::CSSRule>> InspectorStyleSheet::buildArrayForRuleList(CSSRuleList* ruleList) |
| { |
| auto result = JSON::ArrayOf<Inspector::Protocol::CSS::CSSRule>::create(); |
| if (!ruleList) |
| return result; |
| |
| RefPtr<CSSRuleList> refRuleList = ruleList; |
| CSSStyleRuleVector rules; |
| collectFlatRules(WTFMove(refRuleList), &rules); |
| |
| for (auto& rule : rules) |
| result->addItem(buildObjectForRule(rule.get(), nullptr)); |
| |
| return result; |
| } |
| |
| void InspectorStyleSheet::collectFlatRules(RefPtr<CSSRuleList>&& ruleList, CSSStyleRuleVector* result) |
| { |
| if (!ruleList) |
| return; |
| |
| for (unsigned i = 0, size = ruleList->length(); i < size; ++i) { |
| CSSRule* rule = ruleList->item(i); |
| CSSStyleRule* styleRule = InspectorCSSAgent::asCSSStyleRule(*rule); |
| if (styleRule) |
| result->append(styleRule); |
| else { |
| RefPtr<CSSRuleList> childRuleList = asCSSRuleList(rule); |
| if (childRuleList) |
| collectFlatRules(WTFMove(childRuleList), result); |
| } |
| } |
| } |
| |
| Ref<InspectorStyleSheetForInlineStyle> InspectorStyleSheetForInlineStyle::create(InspectorPageAgent* pageAgent, const String& id, Ref<StyledElement>&& element, Inspector::Protocol::CSS::StyleSheetOrigin origin, Listener* listener) |
| { |
| return adoptRef(*new InspectorStyleSheetForInlineStyle(pageAgent, id, WTFMove(element), origin, listener)); |
| } |
| |
| InspectorStyleSheetForInlineStyle::InspectorStyleSheetForInlineStyle(InspectorPageAgent* pageAgent, const String& id, Ref<StyledElement>&& element, Inspector::Protocol::CSS::StyleSheetOrigin origin, Listener* listener) |
| : InspectorStyleSheet(pageAgent, id, nullptr, origin, String(), listener) |
| , m_element(WTFMove(element)) |
| , m_ruleSourceData(nullptr) |
| , m_isStyleTextValid(false) |
| { |
| m_inspectorStyle = InspectorStyle::create(InspectorCSSId(id, 0), inlineStyle(), this); |
| m_styleText = m_element->getAttribute("style").string(); |
| } |
| |
| void InspectorStyleSheetForInlineStyle::didModifyElementAttribute() |
| { |
| m_isStyleTextValid = false; |
| if (&m_element->cssomStyle() != &m_inspectorStyle->cssStyle()) |
| m_inspectorStyle = InspectorStyle::create(InspectorCSSId(id(), 0), inlineStyle(), this); |
| m_ruleSourceData = nullptr; |
| } |
| |
| ExceptionOr<String> InspectorStyleSheetForInlineStyle::text() const |
| { |
| if (!m_isStyleTextValid) { |
| m_styleText = elementStyleText(); |
| m_isStyleTextValid = true; |
| } |
| return String { m_styleText }; |
| } |
| |
| ExceptionOr<void> InspectorStyleSheetForInlineStyle::setStyleText(CSSStyleDeclaration* style, const String& text) |
| { |
| ASSERT_UNUSED(style, style == &inlineStyle()); |
| |
| { |
| InspectorCSSAgent::InlineStyleOverrideScope overrideScope(m_element->document()); |
| m_element->setAttribute(HTMLNames::styleAttr, text); |
| } |
| |
| m_styleText = text; |
| m_isStyleTextValid = true; |
| m_ruleSourceData = nullptr; |
| |
| return { }; |
| } |
| |
| Vector<size_t> InspectorStyleSheetForInlineStyle::lineEndings() const |
| { |
| return ContentSearchUtilities::lineEndings(elementStyleText()); |
| } |
| |
| Document* InspectorStyleSheetForInlineStyle::ownerDocument() const |
| { |
| return &m_element->document(); |
| } |
| |
| bool InspectorStyleSheetForInlineStyle::ensureParsedDataReady() |
| { |
| // The "style" property value can get changed indirectly, e.g. via element.style.borderWidth = "2px". |
| const String& currentStyleText = elementStyleText(); |
| if (m_styleText != currentStyleText) { |
| m_ruleSourceData = nullptr; |
| m_styleText = currentStyleText; |
| m_isStyleTextValid = true; |
| } |
| |
| if (m_ruleSourceData) |
| return true; |
| |
| m_ruleSourceData = ruleSourceData(); |
| return true; |
| } |
| |
| RefPtr<InspectorStyle> InspectorStyleSheetForInlineStyle::inspectorStyleForId(const InspectorCSSId& id) |
| { |
| ASSERT_UNUSED(id, !id.ordinal()); |
| return m_inspectorStyle.copyRef(); |
| } |
| |
| CSSStyleDeclaration& InspectorStyleSheetForInlineStyle::inlineStyle() const |
| { |
| return m_element->cssomStyle(); |
| } |
| |
| const String& InspectorStyleSheetForInlineStyle::elementStyleText() const |
| { |
| return m_element->getAttribute("style").string(); |
| } |
| |
| Ref<CSSRuleSourceData> InspectorStyleSheetForInlineStyle::ruleSourceData() const |
| { |
| if (m_styleText.isEmpty()) { |
| auto result = CSSRuleSourceData::create(StyleRuleType::Style); |
| result->ruleBodyRange.start = 0; |
| result->ruleBodyRange.end = 0; |
| return result; |
| } |
| |
| CSSParserContext context(parserContextForDocument(&m_element->document())); |
| RuleSourceDataList ruleSourceDataResult; |
| StyleSheetHandler handler(m_styleText, &m_element->document(), &ruleSourceDataResult); |
| CSSParser::parseDeclarationForInspector(context, m_styleText, handler); |
| return WTFMove(ruleSourceDataResult.first()); |
| } |
| |
| } // namespace WebCore |
