third_party/WebKit/Source/core/css/StyleSheetCollection.h

/*
 * 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 StyleSheetCollection_h
#define StyleSheetCollection_h

#include "base/macros.h"
#include "core/CoreExport.h"
#include "core/css/ActiveStyleSheets.h"
#include "platform/bindings/ScriptWrappable.h"
#include "platform/bindings/TraceWrapperMember.h"
#include "platform/heap/Handle.h"
#include "platform/wtf/Allocator.h"
#include "platform/wtf/Vector.h"

namespace blink {

class StyleSheet;

class CORE_EXPORT StyleSheetCollection
    : public GarbageCollected<StyleSheetCollection>,
      public TraceWrapperBase {
 public:
  friend class ActiveDocumentStyleSheetCollector;
  friend class ImportedDocumentStyleSheetCollector;

  static StyleSheetCollection* Create() { return new StyleSheetCollection; }

  const ActiveStyleSheetVector& ActiveAuthorStyleSheets() const {
    return active_author_style_sheets_;
  }
  const HeapVector<TraceWrapperMember<StyleSheet>>&
  StyleSheetsForStyleSheetList() const {
    return style_sheets_for_style_sheet_list_;
  }

  void Swap(StyleSheetCollection&);
  void SwapSheetsForSheetList(HeapVector<Member<StyleSheet>>&);
  void AppendActiveStyleSheet(const ActiveStyleSheet&);
  void AppendSheetForList(StyleSheet*);
  void MarkSheetListDirty() { sheet_list_dirty_ = true; }

  virtual void Trace(blink::Visitor*);
  virtual void TraceWrappers(const ScriptWrappableVisitor*) const;

  void Dispose();

 protected:
  StyleSheetCollection();

  HeapVector<TraceWrapperMember<StyleSheet>> style_sheets_for_style_sheet_list_;
  ActiveStyleSheetVector active_author_style_sheets_;
  bool sheet_list_dirty_ = true;

 private:
  DISALLOW_COPY_AND_ASSIGN(StyleSheetCollection);
};

}  // namespace blink

#endif  // StyleSheetCollection_h