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1 /* | 1 /* |
2 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights | 2 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights |
3 * reserved. | 3 * reserved. |
4 * | 4 * |
5 * Redistribution and use in source and binary forms, with or without | 5 * Redistribution and use in source and binary forms, with or without |
6 * modification, are permitted provided that the following conditions | 6 * modification, are permitted provided that the following conditions |
7 * are met: | 7 * are met: |
8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
11 * notice, this list of conditions and the following disclaimer in the | 11 * notice, this list of conditions and the following disclaimer in the |
12 * documentation and/or other materials provided with the distribution. | 12 * documentation and/or other materials provided with the distribution. |
13 * | 13 * |
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
25 */ | 25 */ |
26 | 26 |
27 #ifndef SelectionEditor_h | 27 #ifndef SelectionEditor_h |
28 #define SelectionEditor_h | 28 #define SelectionEditor_h |
29 | 29 |
30 #include "core/dom/SynchronousMutationObserver.h" | |
30 #include "core/editing/FrameSelection.h" | 31 #include "core/editing/FrameSelection.h" |
32 #include "core/editing/SelectionTemplate.h" | |
31 #include "core/events/EventDispatchResult.h" | 33 #include "core/events/EventDispatchResult.h" |
32 | 34 |
33 namespace blink { | 35 namespace blink { |
34 | 36 |
35 // TODO(yosin): We will rename |SelectionEditor| to appropriate name since | 37 // TODO(yosin): We will rename |SelectionEditor| to appropriate name since |
36 // it is no longer have a changing selection functionality, it was moved to | 38 // it is no longer have a changing selection functionality, it was moved to |
37 // |SelectionModifier| class. | 39 // |SelectionModifier| class. |
38 class SelectionEditor final | 40 class SelectionEditor final : public GarbageCollectedFinalized<SelectionEditor>, |
39 : public GarbageCollectedFinalized<SelectionEditor> { | 41 public SynchronousMutationObserver { |
40 WTF_MAKE_NONCOPYABLE(SelectionEditor); | 42 WTF_MAKE_NONCOPYABLE(SelectionEditor); |
43 USING_GARBAGE_COLLECTED_MIXIN(SelectionEditor); | |
41 | 44 |
42 public: | 45 public: |
43 static SelectionEditor* create(LocalFrame& frame) { | 46 static SelectionEditor* create(LocalFrame& frame) { |
44 return new SelectionEditor(frame); | 47 return new SelectionEditor(frame); |
45 } | 48 } |
49 | |
46 virtual ~SelectionEditor(); | 50 virtual ~SelectionEditor(); |
47 void dispose(); | 51 void dispose(); |
48 | 52 |
49 bool hasEditableStyle() const { return m_selection.hasEditableStyle(); } | |
50 bool isContentEditable() const { return m_selection.isContentEditable(); } | |
51 bool isContentRichlyEditable() const { | |
52 return m_selection.isContentRichlyEditable(); | |
53 } | |
54 | |
55 bool setSelectedRange(const EphemeralRange&, | |
56 TextAffinity, | |
57 SelectionDirectionalMode, | |
58 FrameSelection::SetSelectionOptions); | |
59 | |
60 template <typename Strategy> | 53 template <typename Strategy> |
61 const VisibleSelectionTemplate<Strategy>& visibleSelection() const; | 54 const VisibleSelectionTemplate<Strategy>& visibleSelection() const; |
62 void setVisibleSelection(const VisibleSelection&, | 55 const SelectionInDOMTree& selectionInDOMTree() const; |
63 FrameSelection::SetSelectionOptions); | |
64 void setVisibleSelection(const VisibleSelectionInFlatTree&, | |
65 FrameSelection::SetSelectionOptions); | |
66 | 56 |
67 void setWithoutValidation(const Position& base, const Position& extent); | 57 bool hasEditableStyle() const; |
58 bool isContentEditable() const; | |
59 bool isContentRichlyEditable() const; | |
60 | |
61 const VisibleSelection& computeVisibleSelectionInDOMTree() const; | |
62 const VisibleSelectionInFlatTree& computeVisibleSelectionInFlatTree() const; | |
63 void setSelection(const SelectionInDOMTree&); | |
68 | 64 |
69 void documentAttached(Document*); | 65 void documentAttached(Document*); |
70 void documentDetached(const Document&); | |
71 | 66 |
72 // If this FrameSelection has a logical range which is still valid, this | 67 // If this FrameSelection has a logical range which is still valid, this |
73 // function return its clone. Otherwise, the return value from underlying | 68 // function return its clone. Otherwise, the return value from underlying |
74 // |VisibleSelection|'s |firstRange()| is returned. | 69 // |VisibleSelection|'s |firstRange()| is returned. |
75 Range* firstRange() const; | 70 Range* firstRange() const; |
76 | 71 |
77 // There functions are exposed for |FrameSelection|. | 72 // There functions are exposed for |FrameSelection|. |
78 void resetLogicalRange(); | 73 void resetLogicalRange(); |
79 void setLogicalRange(Range*); | 74 void setLogicalRange(Range*); |
80 | 75 |
81 // Updates |m_selection| and |m_selectionInFlatTree| with up-to-date | 76 // Updates |m_selection| and |m_selectionInFlatTree| with up-to-date |
82 // layout if needed. | 77 // layout if needed. |
83 void updateIfNeeded(); | 78 void updateIfNeeded(); |
84 | 79 |
85 void cacheRangeOfDocument(Range*); | 80 void cacheRangeOfDocument(Range*); |
86 Range* documentCachedRange() const; | 81 Range* documentCachedRange() const; |
87 void clearDocumentCachedRange(); | 82 void clearDocumentCachedRange(); |
88 | 83 |
89 DECLARE_TRACE(); | 84 DECLARE_TRACE(); |
90 | 85 |
91 private: | 86 private: |
92 explicit SelectionEditor(LocalFrame&); | 87 explicit SelectionEditor(LocalFrame&); |
93 | 88 |
94 const Document& document() const; | 89 const Document& document() const; |
90 Document& document(); | |
95 LocalFrame* frame() const { return m_frame.get(); } | 91 LocalFrame* frame() const { return m_frame.get(); } |
96 | 92 |
93 void assertSelectionValid() const; | |
97 void clearVisibleSelection(); | 94 void clearVisibleSelection(); |
95 void markCacheDirty(); | |
98 bool shouldAlwaysUseDirectionalSelection() const; | 96 bool shouldAlwaysUseDirectionalSelection() const; |
99 | 97 |
100 Member<Document> m_document; | 98 // VisibleSelection cache related |
99 bool needsUpdateVisibleSelection() const; | |
100 void updateCachedVisibleSelectionIfNeeded(); | |
101 | |
102 void didFinishTextChange(const Position& base, const Position& extent); | |
103 void didFinishDOMMutation(); | |
104 | |
105 // Implementation of |SynchronousMutationObsderver| member functions. | |
106 void contextDestroyed(Document*) final; | |
107 void didChangeChildren(const ContainerNode&) final; | |
108 void didMergeTextNodes(const Text& mergedNode, | |
109 const NodeWithIndex& nodeToBeRemovedWithIndex, | |
110 unsigned oldLength) final; | |
111 void didSplitTextNode(const Text&) final; | |
112 void didUpdateCharacterData(CharacterData*, | |
113 unsigned offset, | |
114 unsigned oldLength, | |
115 unsigned newLength) final; | |
116 void nodeChildrenWillBeRemoved(ContainerNode&) final; | |
117 void nodeWillBeRemoved(Node&) final; | |
118 | |
101 Member<LocalFrame> m_frame; | 119 Member<LocalFrame> m_frame; |
102 | 120 |
103 VisibleSelection m_selection; | 121 SelectionInDOMTree m_selection; |
104 VisibleSelectionInFlatTree m_selectionInFlatTree; | |
105 bool m_observingVisibleSelection; | |
106 | 122 |
107 // TODO(editing-dev): Removing |m_logicalRange| | 123 // TODO(editing-dev): Removing |m_logicalRange| |
108 // The range specified by the user, which may not be visually canonicalized | 124 // The range specified by the user, which may not be visually canonicalized |
109 // (hence "logical"). This will be invalidated if the underlying | 125 // (hence "logical"). This will be invalidated if the underlying |
110 // |VisibleSelection| changes. If that happens, this variable will | 126 // |VisibleSelection| changes. If that happens, this variable will |
111 // become |nullptr|, in which case logical positions == visible positions. | 127 // become |nullptr|, in which case logical positions == visible positions. |
112 Member<Range> m_logicalRange; | 128 Member<Range> m_logicalRange; |
129 | |
113 // If document is root, document.getSelection().addRange(range) is cached on | 130 // If document is root, document.getSelection().addRange(range) is cached on |
114 // this. | 131 // this. |
115 Member<Range> m_cachedRange; | 132 Member<Range> m_cachedRange; |
133 | |
134 mutable VisibleSelection m_cachedVisibleSelectionInDOMTree; | |
135 mutable VisibleSelectionInFlatTree m_cachedVisibleSelectionInFlatTree; | |
136 mutable uint64_t m_styleVersion = static_cast<uint64_t>(-1); | |
tkent
2017/02/10 08:47:41
Why don't you make it int64_t?
yosin_UTC9
2017/02/10 10:13:20
As same as Document::m_styleVersion
| |
137 mutable bool m_cacheIsDirty = false; | |
116 }; | 138 }; |
117 | 139 |
118 } // namespace blink | 140 } // namespace blink |
119 | 141 |
120 #endif // SelectionEditor_h | 142 #endif // SelectionEditor_h |
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