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 CHROME_BROWSER_ANDROID_THUMBNAIL_THUMBNAIL_H_ 6 #define CHROME_BROWSER_ANDROID_THUMBNAIL_THUMBNAIL_H_ 7 8 #include "base/memory/ref_counted.h" 9 #include "base/time/time.h" 10 #include "cc/resources/ui_resource_bitmap.h" 11 #include "cc/resources/ui_resource_client.h" 12 #include "content/public/browser/android/ui_resource_client_android.h" 13 #include "ui/gfx/geometry/size.h" 14 15 namespace base { 16 class Time; 17 } 18 19 namespace content { 20 class UIResourceProvider; 21 } 22 23 namespace gfx { 24 class Size; 25 } 26 27 typedef int TabId; 28 29 class Thumbnail; 30 31 class ThumbnailDelegate { 32 public: 33 virtual void InvalidateCachedThumbnail(Thumbnail* thumbnail) = 0; ~ThumbnailDelegate()34 virtual ~ThumbnailDelegate() {} 35 }; 36 37 class Thumbnail : public content::UIResourceClientAndroid { 38 public: 39 static scoped_ptr<Thumbnail> Create( 40 TabId tab_id, 41 const base::Time& time_stamp, 42 float scale, 43 content::UIResourceProvider* ui_resource_provider, 44 ThumbnailDelegate* thumbnail_delegate); 45 virtual ~Thumbnail(); 46 tab_id()47 TabId tab_id() const { return tab_id_; } time_stamp()48 base::Time time_stamp() const { return time_stamp_; } scale()49 float scale() const { return scale_; } ui_resource_id()50 cc::UIResourceId ui_resource_id() const { return ui_resource_id_; } scaled_content_size()51 const gfx::SizeF& scaled_content_size() const { return scaled_content_size_; } scaled_data_size()52 const gfx::SizeF& scaled_data_size() const { return scaled_data_size_; } 53 54 void SetBitmap(const SkBitmap& bitmap); 55 void SetCompressedBitmap(skia::RefPtr<SkPixelRef> compressed_bitmap, 56 const gfx::Size& content_size); 57 void CreateUIResource(); 58 59 // content::UIResourceClient implementation. 60 virtual cc::UIResourceBitmap GetBitmap(cc::UIResourceId uid, 61 bool resource_lost) OVERRIDE; 62 63 // content::UIResourceClientAndroid implementation. 64 virtual void UIResourceIsInvalid() OVERRIDE; 65 66 protected: 67 Thumbnail(TabId tab_id, 68 const base::Time& time_stamp, 69 float scale, 70 content::UIResourceProvider* ui_resource_provider, 71 ThumbnailDelegate* thumbnail_delegate); 72 73 void ClearUIResourceId(); 74 75 TabId tab_id_; 76 base::Time time_stamp_; 77 float scale_; 78 79 gfx::SizeF scaled_content_size_; 80 gfx::SizeF scaled_data_size_; 81 82 cc::UIResourceBitmap bitmap_; 83 cc::UIResourceId ui_resource_id_; 84 85 bool retrieved_; 86 87 content::UIResourceProvider* ui_resource_provider_; 88 ThumbnailDelegate* thumbnail_delegate_; 89 90 DISALLOW_COPY_AND_ASSIGN(Thumbnail); 91 }; 92 93 #endif // CHROME_BROWSER_ANDROID_THUMBNAIL_THUMBNAIL_H_ 94