[Editing][CodeHealth] Extract new FrameCaret class from FrameSelection

third_party/WebKit/Source/core/editing/FrameCaret.h

+// Copyright 2016 The Chromium Authors. All rights reserved.

[yosin_UTC9, 2016/05/19 08:32:36]

Copyright text should be taken from FrameSelection.h
Since these codes are moved with some changes from FrameSelection.h

[yoichio, 2016/05/20 05:12:12]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef FrameCaret_h
+#define FrameCaret_h
+
+#include "core/editing/CaretBase.h"
+#include "core/editing/VisibleSelection.h"
+
+namespace blink {
+
+class FrameCaret : public CaretBase {
+public:
+    FrameCaret(LocalFrame*);
+    virtual ~FrameCaret() { }

[yosin_UTC9, 2016/05/19 08:32:36]

Please put int .cpp as |FrameCaret::~FrameCaret() = defualt;|
http://dev.chromium.org/developers/coding-style/cpp-dos-and-donts#TOC-Stop-in...

[yoichio, 2016/05/20 05:12:12]

Done.

+
+    // Used to suspend caret blinking while the mouse is down.
+    void setCaretBlinkingSuspended(bool suspended) { m_isCaretBlinkingSuspended = suspended; }
+    bool isCaretBlinkingSuspended() const { return m_isCaretBlinkingSuspended; }
+    void stopCaretBlinkTimer();
+    void startBlinkCaret();
+
+    bool isCaretBoundsDirty() const { return m_caretRectDirty; }
+    void setCaretRectNeedsUpdate();
+    void invalidateCaretRect(const VisibleSelection&);
+
+    void paintCaret(GraphicsContext&, const LayoutPoint&, const VisibleSelection&);
+
+    void dataWillChange(const CharacterData&);
+    void nodeWillBeRemoved(Node&);
+
+    void prepareForDestruction();
+
+    // For unittests
+    bool shouldPaintCaretForTesting() const { return m_shouldPaintCaret; }
+    bool isPreviousCaretDirtyForTesting() const { return m_previousCaretNode; }
+
+    DECLARE_VIRTUAL_TRACE();
+
+private:
+    void caretBlinkTimerFired(Timer<FrameCaret>*);
+
+    const Member<LocalFrame> m_frame;
+    // The last node which painted the caret. Retained for clearing the old
+    // caret when it moves.
+    Member<Node> m_previousCaretNode;
+    LayoutRect m_previousCaretRect;
+    CaretVisibility m_previousCaretVisibility;
+    Timer<FrameCaret> m_caretBlinkTimer;
+    bool m_caretRectDirty : 1;
+    bool m_shouldPaintCaret : 1;
+    bool m_isCaretBlinkingSuspended : 1;
+};
+
+} // namespace blink
+
+#endif // FrameCaret_h