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Diffstat (limited to 'Source/WebCore/dom/ExtensionStyleSheets.cpp')
| -rw-r--r-- | Source/WebCore/dom/ExtensionStyleSheets.cpp | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/Source/WebCore/dom/ExtensionStyleSheets.cpp b/Source/WebCore/dom/ExtensionStyleSheets.cpp new file mode 100644 index 000000000..d0d244af3 --- /dev/null +++ b/Source/WebCore/dom/ExtensionStyleSheets.cpp @@ -0,0 +1,213 @@ +/* + * 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) 2004-2009, 2011-2012, 2015 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 "ExtensionStyleSheets.h" + +#include "CSSStyleSheet.h" +#include "Element.h" +#include "HTMLLinkElement.h" +#include "HTMLStyleElement.h" +#include "Page.h" +#include "ProcessingInstruction.h" +#include "SVGStyleElement.h" +#include "Settings.h" +#include "StyleInvalidationAnalysis.h" +#include "StyleResolver.h" +#include "StyleScope.h" +#include "StyleSheetContents.h" +#include "StyleSheetList.h" +#include "UserContentController.h" +#include "UserContentURLPattern.h" +#include "UserStyleSheet.h" + +namespace WebCore { + +using namespace ContentExtensions; +using namespace HTMLNames; + +ExtensionStyleSheets::ExtensionStyleSheets(Document& document) + : m_document(document) +{ +} + +static Ref<CSSStyleSheet> createExtensionsStyleSheet(Document& document, URL url, const String& text, UserStyleLevel level) +{ + auto contents = StyleSheetContents::create(url, CSSParserContext(document, url)); + auto styleSheet = CSSStyleSheet::create(contents.get(), document, true); + + contents->setIsUserStyleSheet(level == UserStyleUserLevel); + contents->parseString(text); + + return styleSheet; +} + +CSSStyleSheet* ExtensionStyleSheets::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; + + m_pageUserSheet = createExtensionsStyleSheet(m_document, m_document.settings().userStyleSheetLocation(), userSheetText, UserStyleUserLevel); + + return m_pageUserSheet.get(); +} + +void ExtensionStyleSheets::clearPageUserSheet() +{ + if (m_pageUserSheet) { + m_pageUserSheet = nullptr; + m_document.styleScope().didChangeStyleSheetEnvironment(); + } +} + +void ExtensionStyleSheets::updatePageUserSheet() +{ + clearPageUserSheet(); + if (pageUserSheet()) + m_document.styleScope().didChangeStyleSheetEnvironment(); +} + +const Vector<RefPtr<CSSStyleSheet>>& ExtensionStyleSheets::injectedUserStyleSheets() const +{ + updateInjectedStyleSheetCache(); + return m_injectedUserStyleSheets; +} + +const Vector<RefPtr<CSSStyleSheet>>& ExtensionStyleSheets::injectedAuthorStyleSheets() const +{ + updateInjectedStyleSheetCache(); + return m_injectedAuthorStyleSheets; +} + +void ExtensionStyleSheets::updateInjectedStyleSheetCache() const +{ + if (m_injectedStyleSheetCacheValid) + return; + m_injectedStyleSheetCacheValid = true; + m_injectedUserStyleSheets.clear(); + m_injectedAuthorStyleSheets.clear(); + + Page* owningPage = m_document.page(); + if (!owningPage) + return; + + owningPage->userContentProvider().forEachUserStyleSheet([&](const UserStyleSheet& userStyleSheet) { + if (userStyleSheet.injectedFrames() == InjectInTopFrameOnly && m_document.ownerElement()) + return; + + if (!UserContentURLPattern::matchesPatterns(m_document.url(), userStyleSheet.whitelist(), userStyleSheet.blacklist())) + return; + + auto sheet = createExtensionsStyleSheet(const_cast<Document&>(m_document), userStyleSheet.url(), userStyleSheet.source(), userStyleSheet.level()); + + if (userStyleSheet.level() == UserStyleUserLevel) + m_injectedUserStyleSheets.append(WTFMove(sheet)); + else + m_injectedAuthorStyleSheets.append(WTFMove(sheet)); + }); + + if (!owningPage->captionUserPreferencesStyleSheet().isEmpty()) { + // Identify our override style sheet with a unique URL - a new scheme and a UUID. + static NeverDestroyed<URL> captionsStyleSheetURL(ParsedURLString, "user-captions-override:01F6AF12-C3B0-4F70-AF5E-A3E00234DC23"); + + auto sheet = createExtensionsStyleSheet(const_cast<Document&>(m_document), captionsStyleSheetURL, owningPage->captionUserPreferencesStyleSheet(), UserStyleAuthorLevel); + + m_injectedAuthorStyleSheets.append(WTFMove(sheet)); + } +} + +void ExtensionStyleSheets::invalidateInjectedStyleSheetCache() +{ + m_injectedStyleSheetCacheValid = false; + m_document.styleScope().didChangeStyleSheetEnvironment(); +} + +void ExtensionStyleSheets::addUserStyleSheet(Ref<StyleSheetContents>&& userSheet) +{ + ASSERT(userSheet.get().isUserStyleSheet()); + m_userStyleSheets.append(CSSStyleSheet::create(WTFMove(userSheet), m_document)); + m_document.styleScope().didChangeStyleSheetEnvironment(); +} + +void ExtensionStyleSheets::addAuthorStyleSheetForTesting(Ref<StyleSheetContents>&& authorSheet) +{ + ASSERT(!authorSheet.get().isUserStyleSheet()); + m_authorStyleSheetsForTesting.append(CSSStyleSheet::create(WTFMove(authorSheet), m_document)); + m_document.styleScope().didChangeStyleSheetEnvironment(); +} + +#if ENABLE(CONTENT_EXTENSIONS) +void ExtensionStyleSheets::addDisplayNoneSelector(const String& identifier, const String& selector, uint32_t selectorID) +{ + auto result = m_contentExtensionSelectorSheets.add(identifier, nullptr); + if (result.isNewEntry) { + result.iterator->value = ContentExtensionStyleSheet::create(m_document); + m_userStyleSheets.append(&result.iterator->value->styleSheet()); + } + + if (result.iterator->value->addDisplayNoneSelector(selector, selectorID)) + m_document.styleScope().didChangeStyleSheetEnvironment(); +} + +void ExtensionStyleSheets::maybeAddContentExtensionSheet(const String& identifier, StyleSheetContents& sheet) +{ + ASSERT(sheet.isUserStyleSheet()); + + if (m_contentExtensionSheets.contains(identifier)) + return; + + Ref<CSSStyleSheet> cssSheet = CSSStyleSheet::create(sheet, m_document); + m_contentExtensionSheets.set(identifier, &cssSheet.get()); + m_userStyleSheets.append(adoptRef(cssSheet.leakRef())); + m_document.styleScope().didChangeStyleSheetEnvironment(); + +} +#endif // ENABLE(CONTENT_EXTENSIONS) + +void ExtensionStyleSheets::detachFromDocument() +{ + if (m_pageUserSheet) + m_pageUserSheet->detachFromDocument(); + for (auto& sheet : m_injectedUserStyleSheets) + sheet->detachFromDocument(); + for (auto& sheet : m_injectedAuthorStyleSheets) + sheet->detachFromDocument(); + for (auto& sheet : m_userStyleSheets) + sheet->detachFromDocument(); + for (auto& sheet : m_authorStyleSheetsForTesting) + sheet->detachFromDocument(); +} + +} |