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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
* Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
* Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
* Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
* Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
* Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
* Copyright (c) 2011, Code Aurora Forum. All rights reserved.
* Copyright (C) Research In Motion Limited 2011. All rights reserved.
* Copyright (C) 2012 Google Inc. 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/css/CSSDefaultStyleSheets.h"
#include "core/MathMLNames.h"
#include "core/UserAgentStyleSheets.h"
#include "core/css/MediaQueryEvaluator.h"
#include "core/css/RuleSet.h"
#include "core/css/StyleSheetContents.h"
#include "core/dom/Fullscreen.h"
#include "core/html/HTMLAnchorElement.h"
#include "core/html/HTMLHtmlElement.h"
#include "core/rendering/RenderTheme.h"
#include "wtf/LeakAnnotations.h"
namespace blink {
using namespace HTMLNames;
CSSDefaultStyleSheets& CSSDefaultStyleSheets::instance()
{
DEFINE_STATIC_LOCAL(OwnPtrWillBePersistent<CSSDefaultStyleSheets>, cssDefaultStyleSheets, (adoptPtrWillBeNoop(new CSSDefaultStyleSheets())));
return *cssDefaultStyleSheets;
}
static const MediaQueryEvaluator& screenEval()
{
DEFINE_STATIC_LOCAL(const MediaQueryEvaluator, staticScreenEval, ("screen"));
return staticScreenEval;
}
static const MediaQueryEvaluator& printEval()
{
DEFINE_STATIC_LOCAL(const MediaQueryEvaluator, staticPrintEval, ("print"));
return staticPrintEval;
}
static PassRefPtrWillBeRawPtr<StyleSheetContents> parseUASheet(const String& str)
{
RefPtrWillBeRawPtr<StyleSheetContents> sheet = StyleSheetContents::create(CSSParserContext(UASheetMode, 0));
sheet->parseString(str);
// User Agent stylesheets are parsed once for the lifetime of the renderer
// and are intentionally leaked.
WTF_ANNOTATE_LEAKING_OBJECT_PTR(sheet.get());
return sheet.release();
}
static PassRefPtrWillBeRawPtr<StyleSheetContents> parseUASheet(const char* characters, unsigned size)
{
return parseUASheet(String(characters, size));
}
CSSDefaultStyleSheets::CSSDefaultStyleSheets()
: m_defaultStyle(nullptr)
, m_defaultViewportStyle(nullptr)
, m_defaultQuirksStyle(nullptr)
, m_defaultPrintStyle(nullptr)
, m_defaultViewSourceStyle(nullptr)
, m_defaultXHTMLMobileProfileStyle(nullptr)
, m_defaultTransitionStyle(nullptr)
, m_defaultStyleSheet(nullptr)
, m_viewportStyleSheet(nullptr)
, m_quirksStyleSheet(nullptr)
, m_svgStyleSheet(nullptr)
, m_mathmlStyleSheet(nullptr)
, m_mediaControlsStyleSheet(nullptr)
, m_fullscreenStyleSheet(nullptr)
{
m_defaultStyle = RuleSet::create();
m_defaultViewportStyle = RuleSet::create();
m_defaultPrintStyle = RuleSet::create();
m_defaultQuirksStyle = RuleSet::create();
// Strict-mode rules.
String defaultRules = String(htmlCss, sizeof(htmlCss)) + RenderTheme::theme().extraDefaultStyleSheet();
m_defaultStyleSheet = parseUASheet(defaultRules);
m_defaultStyle->addRulesFromSheet(defaultStyleSheet(), screenEval());
#if OS(ANDROID)
String viewportRules(viewportAndroidCss, sizeof(viewportAndroidCss));
#else
String viewportRules;
#endif
m_viewportStyleSheet = parseUASheet(viewportRules);
m_defaultViewportStyle->addRulesFromSheet(viewportStyleSheet(), screenEval());
m_defaultPrintStyle->addRulesFromSheet(defaultStyleSheet(), printEval());
// Quirks-mode rules.
String quirksRules = String(quirksCss, sizeof(quirksCss)) + RenderTheme::theme().extraQuirksStyleSheet();
m_quirksStyleSheet = parseUASheet(quirksRules);
m_defaultQuirksStyle->addRulesFromSheet(quirksStyleSheet(), screenEval());
}
RuleSet* CSSDefaultStyleSheets::defaultViewSourceStyle()
{
if (!m_defaultViewSourceStyle) {
m_defaultViewSourceStyle = RuleSet::create();
// Loaded stylesheet is leaked on purpose.
RefPtrWillBeRawPtr<StyleSheetContents> stylesheet = parseUASheet(viewSourceCss, sizeof(viewSourceCss));
m_defaultViewSourceStyle->addRulesFromSheet(stylesheet.release().leakRef(), screenEval());
}
return m_defaultViewSourceStyle.get();
}
RuleSet* CSSDefaultStyleSheets::defaultTransitionStyle()
{
if (!m_defaultTransitionStyle) {
m_defaultTransitionStyle = RuleSet::create();
// Loaded stylesheet is leaked on purpose.
RefPtrWillBeRawPtr<StyleSheetContents> stylesheet = parseUASheet(navigationTransitionsCss, sizeof(navigationTransitionsCss));
m_defaultTransitionStyle->addRulesFromSheet(stylesheet.release().leakRef(), screenEval());
}
return m_defaultTransitionStyle.get();
}
RuleSet* CSSDefaultStyleSheets::defaultXHTMLMobileProfileStyle()
{
if (!m_defaultXHTMLMobileProfileStyle) {
m_defaultXHTMLMobileProfileStyle = RuleSet::create();
// Loaded stylesheet is leaked on purpose.
RefPtrWillBeRawPtr<StyleSheetContents> stylesheet = parseUASheet(xhtmlmpCss, sizeof(xhtmlmpCss));
m_defaultXHTMLMobileProfileStyle->addRulesFromSheet(stylesheet.release().leakRef(), screenEval());
}
return m_defaultXHTMLMobileProfileStyle.get();
}
void CSSDefaultStyleSheets::ensureDefaultStyleSheetsForElement(Element* element, bool& changedDefaultStyle)
{
// FIXME: We should assert that the sheet only styles SVG elements.
if (element->isSVGElement() && !m_svgStyleSheet) {
m_svgStyleSheet = parseUASheet(svgCss, sizeof(svgCss));
m_defaultStyle->addRulesFromSheet(svgStyleSheet(), screenEval());
m_defaultPrintStyle->addRulesFromSheet(svgStyleSheet(), printEval());
changedDefaultStyle = true;
}
// FIXME: We should assert that the sheet only styles MathML elements.
if (element->namespaceURI() == MathMLNames::mathmlNamespaceURI
&& !m_mathmlStyleSheet) {
m_mathmlStyleSheet = parseUASheet(mathmlCss, sizeof(mathmlCss));
m_defaultStyle->addRulesFromSheet(mathmlStyleSheet(), screenEval());
m_defaultPrintStyle->addRulesFromSheet(mathmlStyleSheet(), printEval());
changedDefaultStyle = true;
}
// FIXME: We should assert that this sheet only contains rules for <video> and <audio>.
if (!m_mediaControlsStyleSheet && (isHTMLVideoElement(*element) || isHTMLAudioElement(*element))) {
String mediaRules = String(mediaControlsCss, sizeof(mediaControlsCss)) + RenderTheme::theme().extraMediaControlsStyleSheet();
m_mediaControlsStyleSheet = parseUASheet(mediaRules);
m_defaultStyle->addRulesFromSheet(mediaControlsStyleSheet(), screenEval());
m_defaultPrintStyle->addRulesFromSheet(mediaControlsStyleSheet(), printEval());
changedDefaultStyle = true;
}
// FIXME: This only works because we Force recalc the entire document so the new sheet
// is loaded for <html> and the correct styles apply to everyone.
if (!m_fullscreenStyleSheet && Fullscreen::isFullScreen(element->document())) {
String fullscreenRules = String(fullscreenCss, sizeof(fullscreenCss)) + RenderTheme::theme().extraFullScreenStyleSheet();
m_fullscreenStyleSheet = parseUASheet(fullscreenRules);
m_defaultStyle->addRulesFromSheet(fullscreenStyleSheet(), screenEval());
m_defaultQuirksStyle->addRulesFromSheet(fullscreenStyleSheet(), screenEval());
changedDefaultStyle = true;
}
ASSERT(!m_defaultStyle->features().hasIdsInSelectors());
ASSERT(m_defaultStyle->features().siblingRules.isEmpty());
}
void CSSDefaultStyleSheets::trace(Visitor* visitor)
{
visitor->trace(m_defaultStyle);
visitor->trace(m_defaultViewportStyle);
visitor->trace(m_defaultQuirksStyle);
visitor->trace(m_defaultPrintStyle);
visitor->trace(m_defaultViewSourceStyle);
visitor->trace(m_defaultXHTMLMobileProfileStyle);
visitor->trace(m_defaultTransitionStyle);
visitor->trace(m_defaultStyleSheet);
visitor->trace(m_viewportStyleSheet);
visitor->trace(m_quirksStyleSheet);
visitor->trace(m_svgStyleSheet);
visitor->trace(m_mathmlStyleSheet);
visitor->trace(m_mediaControlsStyleSheet);
visitor->trace(m_fullscreenStyleSheet);
}
} // namespace blink
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