mirror of
https://github.com/flutter/flutter.git
synced 2026-02-20 02:29:02 +08:00
4e176ff90e
This existed to support the incremental stylesheet updates (AnalyzedStyleUpdate) that sky doesn't support. R=eseidel@google.com Review URL: https://codereview.chromium.org/793933004
139 lines
4.3 KiB
C++
139 lines
4.3 KiB
C++
/*
|
|
* 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, 2010, 2012 Apple Inc. All rights reserved.
|
|
* Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
|
|
* Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
|
|
* Copyright (C) 2011 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.
|
|
*
|
|
*/
|
|
|
|
#ifndef SKY_ENGINE_CORE_DOM_STYLEENGINE_H_
|
|
#define SKY_ENGINE_CORE_DOM_STYLEENGINE_H_
|
|
|
|
#include "sky/engine/core/css/CSSFontSelectorClient.h"
|
|
#include "sky/engine/core/css/resolver/StyleResolver.h"
|
|
#include "sky/engine/wtf/FastAllocBase.h"
|
|
#include "sky/engine/wtf/ListHashSet.h"
|
|
#include "sky/engine/wtf/RefPtr.h"
|
|
#include "sky/engine/wtf/TemporaryChange.h"
|
|
#include "sky/engine/wtf/Vector.h"
|
|
#include "sky/engine/wtf/text/WTFString.h"
|
|
|
|
namespace blink {
|
|
|
|
class CSSFontSelector;
|
|
class CSSStyleSheet;
|
|
class Document;
|
|
class Node;
|
|
class RuleFeatureSet;
|
|
class StyleRuleFontFace;
|
|
class StyleSheetContents;
|
|
|
|
class StyleEngine final : public CSSFontSelectorClient {
|
|
WTF_MAKE_FAST_ALLOCATED;
|
|
public:
|
|
|
|
class IgnoringPendingStylesheet : public TemporaryChange<bool> {
|
|
public:
|
|
IgnoringPendingStylesheet(StyleEngine* engine)
|
|
: TemporaryChange<bool>(engine->m_ignorePendingStylesheets, true)
|
|
{
|
|
}
|
|
};
|
|
|
|
friend class IgnoringPendingStylesheet;
|
|
|
|
static PassOwnPtr<StyleEngine> create(Document& document) { return adoptPtr(new StyleEngine(document)); }
|
|
|
|
~StyleEngine();
|
|
|
|
void detachFromDocument();
|
|
|
|
void addStyleSheetCandidateNode(Node*, bool createdByParser);
|
|
void removeStyleSheetCandidateNode(Node*, ContainerNode* scopingNode, TreeScope&);
|
|
|
|
void updateActiveStyleSheets();
|
|
|
|
bool ignoringPendingStylesheets() const { return m_ignorePendingStylesheets; }
|
|
|
|
// FIXME(sky): Remove this and ::first-line.
|
|
bool usesFirstLineRules() const { return false; }
|
|
|
|
void appendActiveAuthorStyleSheets();
|
|
|
|
StyleResolver* resolver() const
|
|
{
|
|
return m_resolver.get();
|
|
}
|
|
|
|
StyleResolver& ensureResolver()
|
|
{
|
|
if (!m_resolver) {
|
|
createResolver();
|
|
} else if (m_resolver->hasPendingAuthorStyleSheets()) {
|
|
m_resolver->appendPendingAuthorStyleSheets();
|
|
}
|
|
return *m_resolver.get();
|
|
}
|
|
|
|
bool hasResolver() const { return m_resolver.get(); }
|
|
void clearResolver();
|
|
|
|
CSSFontSelector* fontSelector() { return m_fontSelector.get(); }
|
|
void clearFontCache();
|
|
// updateGenericFontFamilySettings is used from WebSettingsImpl.
|
|
void updateGenericFontFamilySettings();
|
|
|
|
void resolverChanged();
|
|
unsigned resolverAccessCount() const;
|
|
|
|
PassRefPtr<CSSStyleSheet> createSheet(Element*, const String& text);
|
|
void removeSheet(StyleSheetContents*);
|
|
|
|
void collectScopedStyleFeaturesTo(RuleFeatureSet&) const;
|
|
|
|
private:
|
|
// CSSFontSelectorClient implementation.
|
|
virtual void fontsNeedUpdate(CSSFontSelector*) override;
|
|
|
|
private:
|
|
explicit StyleEngine(Document&);
|
|
|
|
void createResolver();
|
|
|
|
RawPtr<Document> m_document;
|
|
|
|
typedef ListHashSet<TreeScope*, 16> TreeScopeSet;
|
|
TreeScopeSet m_activeTreeScopes;
|
|
|
|
bool m_ignorePendingStylesheets;
|
|
OwnPtr<StyleResolver> m_resolver;
|
|
|
|
RefPtr<CSSFontSelector> m_fontSelector;
|
|
|
|
HashMap<AtomicString, StyleSheetContents*> m_textToSheetCache;
|
|
HashMap<StyleSheetContents*, AtomicString> m_sheetToTextCache;
|
|
};
|
|
|
|
}
|
|
|
|
#endif // SKY_ENGINE_CORE_DOM_STYLEENGINE_H_
|