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/*
* 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 TreeScopeStyleSheetCollection_h
#define TreeScopeStyleSheetCollection_h
#include "core/dom/Document.h"
#include "core/dom/DocumentOrderedList.h"
#include "core/dom/StyleSheetCollection.h"
#include "core/dom/TreeScope.h"
#include "wtf/FastAllocBase.h"
#include "wtf/HashMap.h"
#include "wtf/ListHashSet.h"
#include "wtf/RefPtr.h"
#include "wtf/Vector.h"
#include "wtf/text/WTFString.h"
namespace blink {
class Node;
class StyleSheetContents;
class StyleRuleFontFace;
class TreeScopeStyleSheetCollection : public StyleSheetCollection {
public:
void addStyleSheetCandidateNode(Node*, bool createdByParser);
void removeStyleSheetCandidateNode(Node* node) { m_styleSheetCandidateNodes.remove(node); }
bool hasStyleSheetCandidateNodes() const { return !m_styleSheetCandidateNodes.isEmpty(); }
bool usesRemUnits() const { return m_usesRemUnits; }
DocumentOrderedList& styleSheetCandidateNodes() { return m_styleSheetCandidateNodes; }
void clearMediaQueryRuleSetStyleSheets();
void setExitTransitionStyleshetsEnabled(bool);
virtual void trace(Visitor*) override;
protected:
explicit TreeScopeStyleSheetCollection(TreeScope&);
Document& document() const { return treeScope().document(); }
TreeScope& treeScope() const { return *m_treeScope; }
enum StyleResolverUpdateType {
Reconstruct,
Reset,
Additive
};
class StyleSheetChange {
STACK_ALLOCATED();
public:
StyleResolverUpdateType styleResolverUpdateType;
bool requiresFullStyleRecalc;
WillBeHeapVector<RawPtrWillBeMember<const StyleRuleFontFace> > fontFaceRulesToRemove;
StyleSheetChange()
: styleResolverUpdateType(Reconstruct)
, requiresFullStyleRecalc(true) { }
};
void analyzeStyleSheetChange(StyleResolverUpdateMode, const StyleSheetCollection&, StyleSheetChange&);
void updateUsesRemUnits();
private:
static StyleResolverUpdateType compareStyleSheets(const WillBeHeapVector<RefPtrWillBeMember<CSSStyleSheet> >& oldStyleSheets, const WillBeHeapVector<RefPtrWillBeMember<CSSStyleSheet> >& newStylesheets, WillBeHeapVector<RawPtrWillBeMember<StyleSheetContents> >& addedSheets);
bool activeLoadingStyleSheetLoaded(const WillBeHeapVector<RefPtrWillBeMember<CSSStyleSheet> >& newStyleSheets);
protected:
RawPtrWillBeMember<TreeScope> m_treeScope;
bool m_hadActiveLoadingStylesheet;
bool m_usesRemUnits;
DocumentOrderedList m_styleSheetCandidateNodes;
};
}
#endif
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