content/browser/devtools/protocol/color_picker.h

   1 // Copyright 2014 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 CONTENT_BROWSER_DEVTOOLS_PROTOCOL_COLOR_PICKER_H_
   6 #define CONTENT_BROWSER_DEVTOOLS_PROTOCOL_COLOR_PICKER_H_
   7
   8 #include "base/callback.h"
   9 #include "content/public/browser/render_widget_host.h"
  10 #include "third_party/skia/include/core/SkBitmap.h"
  11
  12 namespace blink {
  13 class WebMouseEvent;
  14 }
  15
  16 namespace content {
  17
  18 class RenderWidgetHostImpl;
  19
  20 namespace devtools {
  21 namespace page {
  22
  23 class ColorPicker {
  24  public:
  25   typedef base::Callback<void(int, int, int, int)> ColorPickedCallback;
  26
  27   explicit ColorPicker(ColorPickedCallback callback);
  28   virtual ~ColorPicker();
  29
  30   void SetRenderWidgetHost(RenderWidgetHostImpl* host);
  31   void SetEnabled(bool enabled);
  32   void OnSwapCompositorFrame();
  33
  34  private:
  35   void UpdateFrame();
  36   void ResetFrame();
  37   void FrameUpdated(const SkBitmap&, ReadbackResponse);
  38   bool HandleMouseEvent(const blink::WebMouseEvent& event);
  39   void UpdateCursor();
  40
  41   ColorPickedCallback callback_;
  42   bool enabled_;
  43   SkBitmap frame_;
  44   int last_cursor_x_;
  45   int last_cursor_y_;
  46   RenderWidgetHost::MouseEventCallback mouse_event_callback_;
  47   RenderWidgetHostImpl* host_;
  48   base::WeakPtrFactory<ColorPicker> weak_factory_;
  49
  50   DISALLOW_COPY_AND_ASSIGN(ColorPicker);
  51 };
  52
  53 }  // namespace page
  54 }  // namespace devtools
  55 }  // namespace content
  56
  57 #endif  // CONTENT_BROWSER_DEVTOOLS_PROTOCOL_COLOR_PICKER_H_