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1 // Copyright 2017 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef CompositionMarkerListImpl_h | |
6 #define CompositionMarkerListImpl_h | |
7 | |
8 #include "core/editing/markers/DocumentMarkerList.h" | |
9 | |
10 namespace blink { | |
11 | |
12 // Implementation of DocumentMarkerList for Composition markers. | |
13 // Composition markers are always inserted in order, aside from some potential | |
14 // oddball cases (e.g. splitting the marker list into two nodes, then undoing | |
15 // the split). This means we can keep the list in sorted order to do some | |
16 // operations more efficiently, while still being able to do inserts in O(1) | |
17 // time at the end of the list. | |
18 class CORE_EXPORT CompositionMarkerListImpl final : public DocumentMarkerList { | |
19 public: | |
20 CompositionMarkerListImpl() = default; | |
21 | |
22 // DocumentMarkerList implementations | |
23 bool IsEmpty() const final; | |
24 | |
25 void Add(DocumentMarker*) final; | |
26 void Clear() final; | |
27 | |
28 const HeapVector<Member<RenderedDocumentMarker>>& GetMarkers() const final; | |
29 | |
30 bool MoveMarkers(int length, DocumentMarkerList* dst_list) final; | |
31 bool RemoveMarkers(unsigned start_offset, int length) final; | |
32 bool RemoveMarkersUnderWords(const String& node_text, | |
33 const Vector<String>& words) final; | |
34 bool ShiftMarkers(unsigned offset, | |
35 unsigned old_length, | |
36 unsigned new_length) final; | |
37 DECLARE_VIRTUAL_TRACE(); | |
yosin_UTC9
2017/05/08 04:07:39
nit: Could you add a blank line before |DECLARE_VI
| |
38 | |
39 private: | |
40 HeapVector<Member<RenderedDocumentMarker>> markers_; | |
41 | |
42 DISALLOW_COPY_AND_ASSIGN(CompositionMarkerListImpl); | |
43 }; | |
44 | |
45 } // namespace blink | |
46 | |
47 #endif // CompositionMarkerListImpl_h | |
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