Refactor DocumentMarkerController

third_party/WebKit/Source/core/editing/markers/DocumentMarkerList.h

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef DocumentMarkerList_h
+#define DocumentMarkerList_h
+
+#include "core/editing/markers/DocumentMarker.h"
+#include "platform/heap/Handle.h"
+
+namespace blink {
+
+class DocumentMarkerController;
+
+class DocumentMarkerList : public GarbageCollected<DocumentMarkerList> {
+  WTF_MAKE_NONCOPYABLE(DocumentMarkerList);

[Xiaocheng, 2017/03/21 03:59:44]

nit: It's a little bit weird to me to have both WTF_MAKE_NONCOPYABLE and
DISALLOW_COPY_AND_ASSIGN in the same patch.

The same comment applies to other classes.

+
+ public:
+  explicit DocumentMarkerList(DocumentMarkerController*);
+  using iterator = Member<DocumentMarker>*;
+  using const_iterator = const Member<DocumentMarker>*;
+
+  virtual DocumentMarker::MarkerType allowedMarkerType() const = 0;
+
+  size_t size() const;
+  bool empty() const;
+  virtual DocumentMarker* at(size_t index);
+
+  virtual void clear() = 0;
+
+  iterator begin();
+  iterator end();
+  const_iterator begin() const;
+  const_iterator end() const;
+
+  void appendMarkersToInputList(DocumentMarkerVector* list) const;
+
+  virtual bool copyMarkers(unsigned startOffset,
+                           int length,
+                           Node* dstNode,
+                           int delta) const = 0;
+  virtual void removeMarkers(unsigned startOffset,
+                             int length,
+                             bool shouldRemovePartiallyOverlappingMarkers,
+                             bool* didRemoveMarker) = 0;
+  virtual bool shiftMarkers(unsigned offset,
+                            unsigned oldLength,
+                            unsigned newLength) = 0;
+
+  DECLARE_VIRTUAL_TRACE();
+
+ protected:
+  HeapVector<Member<DocumentMarker>>::iterator
+  getPosOfFirstMarkerNotEndingBefore(size_t startOffset);
+
+  Member<DocumentMarkerController> m_documentMarkerController;
+  HeapVector<Member<DocumentMarker>> m_markers;
+
+ private:
+  static bool endsBefore(size_t startOffset, const Member<DocumentMarker>& rhv);
+};
+
+}  // namespace blink
+
+#endif  // DocumentMarkerList_h