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| 1 // Copyright (c) 2010 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 CHROME_RENDERER_PEPPER_SCROLLBAR_WIDGET_H_ | |
| 6 #define CHROME_RENDERER_PEPPER_SCROLLBAR_WIDGET_H_ | |
| 7 #pragma once | |
| 8 | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "base/ref_counted.h" | |
| 12 #include "base/scoped_ptr.h" | |
| 13 #include "build/build_config.h" | |
| 14 #include "chrome/renderer/pepper_widget.h" | |
| 15 #include "third_party/WebKit/Source/WebKit/chromium/public/WebRect.h" | |
| 16 #include "third_party/WebKit/Source/WebKit/chromium/public/WebScrollbarClient.h" | |
| 17 #include "ui/gfx/point.h" | |
| 18 #include "ui/gfx/rect.h" | |
| 19 | |
| 20 // An implementation of a horizontal/vertical scrollbar. | |
| 21 class PepperScrollbarWidget : public PepperWidget, | |
| 22 public WebKit::WebScrollbarClient, | |
| 23 public base::RefCounted<PepperScrollbarWidget> { | |
| 24 public: | |
| 25 explicit PepperScrollbarWidget(const NPScrollbarCreateParams& params); | |
| 26 | |
| 27 // PepperWidget | |
| 28 virtual void Destroy(); | |
| 29 virtual void Paint(Graphics2DDeviceContext* context, const NPRect& dirty); | |
| 30 virtual bool HandleEvent(const NPPepperEvent& event); | |
| 31 virtual void GetProperty(NPWidgetProperty property, void* value); | |
| 32 virtual void SetProperty(NPWidgetProperty property, void* value); | |
| 33 | |
| 34 // WebKit::WebScrollbarClient | |
| 35 virtual void valueChanged(WebKit::WebScrollbar*); | |
| 36 virtual void invalidateScrollbarRect(WebKit::WebScrollbar*, | |
| 37 const WebKit::WebRect&); | |
| 38 virtual void getTickmarks(WebKit::WebScrollbar*, | |
| 39 WebKit::WebVector<WebKit::WebRect>*) const; | |
| 40 | |
| 41 #if defined(OS_LINUX) | |
| 42 static void SetScrollbarColors(unsigned inactive_color, | |
| 43 unsigned active_color, | |
| 44 unsigned track_color); | |
| 45 #endif | |
| 46 | |
| 47 private: | |
| 48 friend class base::RefCounted<PepperScrollbarWidget>; | |
| 49 | |
| 50 ~PepperScrollbarWidget(); | |
| 51 | |
| 52 void NotifyInvalidate(); | |
| 53 | |
| 54 gfx::Rect dirty_rect_; | |
| 55 gfx::Rect location_; | |
| 56 std::vector<WebKit::WebRect> tickmarks_; | |
| 57 scoped_ptr<WebKit::WebScrollbar> scrollbar_; | |
| 58 | |
| 59 DISALLOW_COPY_AND_ASSIGN(PepperScrollbarWidget); | |
| 60 }; | |
| 61 | |
| 62 #endif // CHROME_RENDERER_PEPPER_SCROLLBAR_WIDGET_H_ | |
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