| /* |
| * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
| * (C) 1999 Antti Koivisto (koivisto@kde.org) |
| * (C) 2001 Dirk Mueller (mueller@kde.org) |
| * (C) 2006 Alexey Proskuryakov (ap@webkit.org) |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved. |
| * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/) |
| * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved. |
| * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies) |
| * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| */ |
| |
| #include "config.h" |
| #include "core/dom/DocumentStyleSheetCollection.h" |
| |
| #include "HTMLNames.h" |
| #include "SVGNames.h" |
| #include "core/css/CSSStyleSheet.h" |
| #include "core/css/StyleInvalidationAnalysis.h" |
| #include "core/css/StyleSheetContents.h" |
| #include "core/css/resolver/StyleResolver.h" |
| #include "core/dom/Document.h" |
| #include "core/dom/Element.h" |
| #include "core/dom/ProcessingInstruction.h" |
| #include "core/dom/WebCoreMemoryInstrumentation.h" |
| #include "core/html/HTMLIFrameElement.h" |
| #include "core/html/HTMLLinkElement.h" |
| #include "core/html/HTMLStyleElement.h" |
| #include "core/page/Page.h" |
| #include "core/page/PageGroup.h" |
| #include "core/page/Settings.h" |
| #include "core/page/UserContentURLPattern.h" |
| #include "core/svg/SVGStyleElement.h" |
| #include "wtf/MemoryInstrumentationListHashSet.h" |
| #include "wtf/MemoryInstrumentationVector.h" |
| |
| namespace WebCore { |
| |
| using namespace HTMLNames; |
| |
| DocumentStyleSheetCollection::DocumentStyleSheetCollection(Document* document) |
| : m_document(document) |
| , m_pendingStylesheets(0) |
| , m_injectedStyleSheetCacheValid(false) |
| , m_needsUpdateActiveStylesheetsOnStyleRecalc(false) |
| , m_usesSiblingRules(false) |
| , m_usesSiblingRulesOverride(false) |
| , m_usesFirstLineRules(false) |
| , m_usesFirstLetterRules(false) |
| , m_usesBeforeAfterRules(false) |
| , m_usesBeforeAfterRulesOverride(false) |
| , m_usesRemUnits(false) |
| , m_collectionForDocument(document) |
| { |
| } |
| |
| DocumentStyleSheetCollection::~DocumentStyleSheetCollection() |
| { |
| if (m_pageUserSheet) |
| m_pageUserSheet->clearOwnerNode(); |
| for (unsigned i = 0; i < m_injectedUserStyleSheets.size(); ++i) |
| m_injectedUserStyleSheets[i]->clearOwnerNode(); |
| for (unsigned i = 0; i < m_injectedAuthorStyleSheets.size(); ++i) |
| m_injectedAuthorStyleSheets[i]->clearOwnerNode(); |
| for (unsigned i = 0; i < m_userStyleSheets.size(); ++i) |
| m_userStyleSheets[i]->clearOwnerNode(); |
| for (unsigned i = 0; i < m_authorStyleSheets.size(); ++i) |
| m_authorStyleSheets[i]->clearOwnerNode(); |
| } |
| |
| const Vector<RefPtr<StyleSheet> >& DocumentStyleSheetCollection::styleSheetsForStyleSheetList() |
| { |
| return m_collectionForDocument.styleSheetsForStyleSheetList(); |
| } |
| |
| const Vector<RefPtr<CSSStyleSheet> >& DocumentStyleSheetCollection::activeAuthorStyleSheets() const |
| { |
| return m_collectionForDocument.activeAuthorStyleSheets(); |
| } |
| |
| void DocumentStyleSheetCollection::combineCSSFeatureFlags() |
| { |
| // Delay resetting the flags until after next style recalc since unapplying the style may not work without these set (this is true at least with before/after). |
| StyleResolver* styleResolver = m_document->styleResolver(); |
| m_usesSiblingRules = m_usesSiblingRules || styleResolver->usesSiblingRules(); |
| m_usesFirstLineRules = m_usesFirstLineRules || styleResolver->usesFirstLineRules(); |
| m_usesBeforeAfterRules = m_usesBeforeAfterRules || styleResolver->usesBeforeAfterRules(); |
| } |
| |
| void DocumentStyleSheetCollection::resetCSSFeatureFlags() |
| { |
| StyleResolver* styleResolver = m_document->styleResolver(); |
| m_usesSiblingRules = styleResolver->usesSiblingRules(); |
| m_usesFirstLineRules = styleResolver->usesFirstLineRules(); |
| m_usesBeforeAfterRules = styleResolver->usesBeforeAfterRules(); |
| } |
| |
| CSSStyleSheet* DocumentStyleSheetCollection::pageUserSheet() |
| { |
| if (m_pageUserSheet) |
| return m_pageUserSheet.get(); |
| |
| Page* owningPage = m_document->page(); |
| if (!owningPage) |
| return 0; |
| |
| String userSheetText = owningPage->userStyleSheet(); |
| if (userSheetText.isEmpty()) |
| return 0; |
| |
| // Parse the sheet and cache it. |
| m_pageUserSheet = CSSStyleSheet::createInline(m_document, m_document->settings()->userStyleSheetLocation()); |
| m_pageUserSheet->contents()->setIsUserStyleSheet(true); |
| m_pageUserSheet->contents()->parseString(userSheetText); |
| return m_pageUserSheet.get(); |
| } |
| |
| void DocumentStyleSheetCollection::clearPageUserSheet() |
| { |
| if (m_pageUserSheet) { |
| RefPtr<StyleSheet> removedSheet = m_pageUserSheet; |
| m_pageUserSheet = 0; |
| m_document->removedStyleSheet(removedSheet.get()); |
| } |
| } |
| |
| void DocumentStyleSheetCollection::updatePageUserSheet() |
| { |
| clearPageUserSheet(); |
| // FIXME: Why is this immediately and not defer? |
| if (StyleSheet* addedSheet = pageUserSheet()) |
| m_document->addedStyleSheet(addedSheet, RecalcStyleImmediately); |
| } |
| |
| const Vector<RefPtr<CSSStyleSheet> >& DocumentStyleSheetCollection::injectedUserStyleSheets() const |
| { |
| updateInjectedStyleSheetCache(); |
| return m_injectedUserStyleSheets; |
| } |
| |
| const Vector<RefPtr<CSSStyleSheet> >& DocumentStyleSheetCollection::injectedAuthorStyleSheets() const |
| { |
| updateInjectedStyleSheetCache(); |
| return m_injectedAuthorStyleSheets; |
| } |
| |
| void DocumentStyleSheetCollection::updateInjectedStyleSheetCache() const |
| { |
| if (m_injectedStyleSheetCacheValid) |
| return; |
| m_injectedStyleSheetCacheValid = true; |
| m_injectedUserStyleSheets.clear(); |
| m_injectedAuthorStyleSheets.clear(); |
| |
| Page* owningPage = m_document->page(); |
| if (!owningPage) |
| return; |
| |
| const PageGroup& pageGroup = owningPage->group(); |
| const UserStyleSheetVector& sheets = pageGroup.userStyleSheets(); |
| for (unsigned i = 0; i < sheets.size(); ++i) { |
| const UserStyleSheet* sheet = sheets[i].get(); |
| if (sheet->injectedFrames() == InjectInTopFrameOnly && m_document->ownerElement()) |
| continue; |
| if (!UserContentURLPattern::matchesPatterns(m_document->url(), sheet->whitelist(), sheet->blacklist())) |
| continue; |
| RefPtr<CSSStyleSheet> groupSheet = CSSStyleSheet::createInline(const_cast<Document*>(m_document), sheet->url()); |
| bool isUserStyleSheet = sheet->level() == UserStyleUserLevel; |
| if (isUserStyleSheet) |
| m_injectedUserStyleSheets.append(groupSheet); |
| else |
| m_injectedAuthorStyleSheets.append(groupSheet); |
| groupSheet->contents()->setIsUserStyleSheet(isUserStyleSheet); |
| groupSheet->contents()->parseString(sheet->source()); |
| } |
| } |
| |
| void DocumentStyleSheetCollection::invalidateInjectedStyleSheetCache() |
| { |
| m_injectedStyleSheetCacheValid = false; |
| // FIXME: updateInjectedStyleSheetCache is called inside StyleSheetCollection::updateActiveStyleSheets |
| // and batch updates lots of sheets so we can't call addedStyleSheet() or removedStyleSheet(). |
| m_document->styleResolverChanged(DeferRecalcStyle); |
| } |
| |
| void DocumentStyleSheetCollection::addAuthorSheet(PassRefPtr<StyleSheetContents> authorSheet) |
| { |
| ASSERT(!authorSheet->isUserStyleSheet()); |
| m_authorStyleSheets.append(CSSStyleSheet::create(authorSheet, m_document)); |
| m_document->addedStyleSheet(m_authorStyleSheets.last().get(), RecalcStyleImmediately); |
| } |
| |
| void DocumentStyleSheetCollection::addUserSheet(PassRefPtr<StyleSheetContents> userSheet) |
| { |
| ASSERT(userSheet->isUserStyleSheet()); |
| m_userStyleSheets.append(CSSStyleSheet::create(userSheet, m_document)); |
| m_document->addedStyleSheet(m_userStyleSheets.last().get(), RecalcStyleImmediately); |
| } |
| |
| // This method is called whenever a top-level stylesheet has finished loading. |
| void DocumentStyleSheetCollection::removePendingSheet(RemovePendingSheetNotificationType notification) |
| { |
| // Make sure we knew this sheet was pending, and that our count isn't out of sync. |
| ASSERT(m_pendingStylesheets > 0); |
| |
| m_pendingStylesheets--; |
| |
| if (m_pendingStylesheets) |
| return; |
| |
| if (notification == RemovePendingSheetNotifyLater) { |
| m_document->setNeedsNotifyRemoveAllPendingStylesheet(); |
| return; |
| } |
| |
| // FIXME: We can't call addedStyleSheet or removedStyleSheet here because we don't know |
| // what's new. We should track that to tell the style system what changed. |
| m_document->didRemoveAllPendingStylesheet(); |
| } |
| |
| void DocumentStyleSheetCollection::addStyleSheetCandidateNode(Node* node, bool createdByParser) |
| { |
| m_collectionForDocument.addStyleSheetCandidateNode(node, createdByParser); |
| } |
| |
| void DocumentStyleSheetCollection::removeStyleSheetCandidateNode(Node* node) |
| { |
| m_collectionForDocument.removeStyleSheetCandidateNode(node); |
| } |
| |
| static bool styleSheetsUseRemUnits(const Vector<RefPtr<CSSStyleSheet> >& sheets) |
| { |
| for (unsigned i = 0; i < sheets.size(); ++i) { |
| if (sheets[i]->contents()->usesRemUnits()) |
| return true; |
| } |
| return false; |
| } |
| |
| bool DocumentStyleSheetCollection::updateActiveStyleSheets(StyleResolverUpdateMode updateMode) |
| { |
| if (m_document->inStyleRecalc()) { |
| // SVG <use> element may manage to invalidate style selector in the middle of a style recalc. |
| // https://bugs.webkit.org/show_bug.cgi?id=54344 |
| // FIXME: This should be fixed in SVG and the call site replaced by ASSERT(!m_inStyleRecalc). |
| m_needsUpdateActiveStylesheetsOnStyleRecalc = true; |
| m_document->scheduleForcedStyleRecalc(); |
| return false; |
| |
| } |
| if (!m_document->renderer() || !m_document->attached()) |
| return false; |
| |
| StyleSheetCollection::StyleResolverUpdateType styleResolverUpdateType; |
| bool requiresFullStyleRecalc = m_collectionForDocument.updateActiveStyleSheets(this, updateMode, styleResolverUpdateType); |
| m_needsUpdateActiveStylesheetsOnStyleRecalc = false; |
| |
| if (styleResolverUpdateType != StyleSheetCollection::Reconstruct) |
| resetCSSFeatureFlags(); |
| |
| InspectorInstrumentation::activeStyleSheetsUpdated(m_document, m_collectionForDocument.styleSheetsForStyleSheetList()); |
| m_usesRemUnits = styleSheetsUseRemUnits(m_collectionForDocument.activeAuthorStyleSheets()); |
| m_document->notifySeamlessChildDocumentsOfStylesheetUpdate(); |
| |
| return requiresFullStyleRecalc; |
| } |
| |
| void DocumentStyleSheetCollection::reportMemoryUsage(MemoryObjectInfo* memoryObjectInfo) const |
| { |
| MemoryClassInfo info(memoryObjectInfo, this, WebCoreMemoryTypes::DOM); |
| info.addMember(m_pageUserSheet, "pageUserSheet"); |
| info.addMember(m_injectedUserStyleSheets, "injectedUserStyleSheets"); |
| info.addMember(m_injectedAuthorStyleSheets, "injectedAuthorStyleSheets"); |
| info.addMember(m_userStyleSheets, "userStyleSheets"); |
| info.addMember(m_authorStyleSheets, "authorStyleSheets"); |
| info.addMember(m_collectionForDocument, "styleSheetCollectionForDocument"); |
| info.addMember(m_preferredStylesheetSetName, "preferredStylesheetSetName"); |
| info.addMember(m_selectedStylesheetSetName, "selectedStylesheetSetName"); |
| info.addMember(m_document, "document"); |
| } |
| |
| } |