2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
3 * (C) 1999 Antti Koivisto (koivisto@kde.org)
4 * (C) 2001 Dirk Mueller (mueller@kde.org)
5 * (C) 2006 Alexey Proskuryakov (ap@webkit.org)
6 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
7 * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
8 * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
9 * Copyright (C) 2011 Google Inc. All rights reserved.
11 * This library is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU Library General Public
13 * License as published by the Free Software Foundation; either
14 * version 2 of the License, or (at your option) any later version.
16 * This library is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * Library General Public License for more details.
21 * You should have received a copy of the GNU Library General Public License
22 * along with this library; see the file COPYING.LIB. If not, write to
23 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
24 * Boston, MA 02110-1301, USA.
28 #ifndef TreeScopeStyleSheetCollection_h
29 #define TreeScopeStyleSheetCollection_h
31 #include "core/dom/Document.h"
32 #include "core/dom/DocumentOrderedList.h"
33 #include "core/dom/StyleSheetCollection.h"
34 #include "core/dom/TreeScope.h"
35 #include "wtf/FastAllocBase.h"
36 #include "wtf/HashMap.h"
37 #include "wtf/ListHashSet.h"
38 #include "wtf/RefPtr.h"
39 #include "wtf/Vector.h"
40 #include "wtf/text/WTFString.h"
46 class StyleSheetContents;
47 class StyleRuleFontFace;
49 class TreeScopeStyleSheetCollection : public StyleSheetCollection {
51 void addStyleSheetCandidateNode(Node*, bool createdByParser);
52 void removeStyleSheetCandidateNode(Node* node) { m_styleSheetCandidateNodes.remove(node); }
53 bool hasStyleSheetCandidateNodes() const { return !m_styleSheetCandidateNodes.isEmpty(); }
55 bool usesRemUnits() const { return m_usesRemUnits; }
57 DocumentOrderedList& styleSheetCandidateNodes() { return m_styleSheetCandidateNodes; }
59 void clearMediaQueryRuleSetStyleSheets();
60 void enableExitTransitionStylesheets();
62 virtual void trace(Visitor*) override;
65 explicit TreeScopeStyleSheetCollection(TreeScope&);
67 Document& document() const { return treeScope().document(); }
68 TreeScope& treeScope() const { return *m_treeScope; }
70 enum StyleResolverUpdateType {
76 class StyleSheetChange {
79 StyleResolverUpdateType styleResolverUpdateType;
80 bool requiresFullStyleRecalc;
81 WillBeHeapVector<RawPtrWillBeMember<const StyleRuleFontFace> > fontFaceRulesToRemove;
84 : styleResolverUpdateType(Reconstruct)
85 , requiresFullStyleRecalc(true) { }
88 void analyzeStyleSheetChange(StyleResolverUpdateMode, const StyleSheetCollection&, StyleSheetChange&);
89 void updateUsesRemUnits();
92 static StyleResolverUpdateType compareStyleSheets(const WillBeHeapVector<RefPtrWillBeMember<CSSStyleSheet> >& oldStyleSheets, const WillBeHeapVector<RefPtrWillBeMember<CSSStyleSheet> >& newStylesheets, WillBeHeapVector<RawPtrWillBeMember<StyleSheetContents> >& addedSheets);
93 bool activeLoadingStyleSheetLoaded(const WillBeHeapVector<RefPtrWillBeMember<CSSStyleSheet> >& newStyleSheets);
96 RawPtrWillBeMember<TreeScope> m_treeScope;
97 bool m_hadActiveLoadingStylesheet;
100 DocumentOrderedList m_styleSheetCandidateNodes;