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| 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 #include "content/browser/android/system_ui_resource_manager_impl.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/bind_helpers.h" | |
| 9 #include "base/location.h" | |
| 10 #include "base/observer_list.h" | |
| 11 #include "base/threading/worker_pool.h" | |
| 12 #include "cc/resources/ui_resource_bitmap.h" | |
| 13 #include "content/public/browser/android/ui_resource_client_android.h" | |
| 14 #include "content/public/browser/android/ui_resource_provider.h" | |
| 15 #include "third_party/skia/include/core/SkBitmap.h" | |
| 16 #include "ui/gfx/android/java_bitmap.h" | |
| 17 | |
| 18 namespace content { | |
| 19 | |
| 20 class SystemUIResourceManagerImpl::Entry | |
| 21 : public content::UIResourceClientAndroid { | |
| 22 public: | |
| 23 explicit Entry(UIResourceProvider* provider) : id_(0), provider_(provider) { | |
| 24 DCHECK(provider); | |
| 25 } | |
| 26 | |
| 27 virtual ~Entry() { | |
| 28 if (id_) | |
| 29 provider_->DeleteUIResource(id_); | |
| 30 id_ = 0; | |
| 31 } | |
| 32 | |
| 33 void SetBitmap(const SkBitmap& bitmap) { | |
| 34 DCHECK(bitmap_.empty()); | |
| 35 DCHECK(!bitmap.empty()); | |
| 36 DCHECK(!id_); | |
| 37 bitmap_ = bitmap; | |
| 38 } | |
| 39 | |
| 40 cc::UIResourceId GetUIResourceId() { | |
| 41 if (bitmap_.empty()) | |
| 42 return 0; | |
| 43 if (!id_) | |
| 44 id_ = provider_->CreateUIResource(this); | |
| 45 return id_; | |
| 46 } | |
| 47 | |
| 48 // content::UIResourceClient implementation. | |
| 49 virtual cc::UIResourceBitmap GetBitmap(cc::UIResourceId uid, | |
| 50 bool resource_lost) OVERRIDE { | |
| 51 DCHECK(!bitmap_.empty()); | |
| 52 return cc::UIResourceBitmap(bitmap_); | |
| 53 } | |
| 54 | |
| 55 // content::UIResourceClientAndroid implementation. | |
| 56 virtual void UIResourceIsInvalid() OVERRIDE { id_ = 0; } | |
| 57 | |
| 58 const SkBitmap& bitmap() const { return bitmap_; } | |
| 59 | |
| 60 private: | |
| 61 SkBitmap bitmap_; | |
| 62 cc::UIResourceId id_; | |
| 63 UIResourceProvider* provider_; | |
| 64 | |
| 65 DISALLOW_COPY_AND_ASSIGN(Entry); | |
| 66 }; | |
| 67 | |
| 68 SystemUIResourceManagerImpl::SystemUIResourceManagerImpl( | |
| 69 UIResourceProvider* ui_resource_provider) | |
| 70 : ui_resource_provider_(ui_resource_provider), weak_factory_(this) { | |
| 71 } | |
| 72 | |
| 73 SystemUIResourceManagerImpl::~SystemUIResourceManagerImpl() { | |
| 74 } | |
| 75 | |
| 76 void SystemUIResourceManagerImpl::PreloadResource(ResourceType type) { | |
| 77 GetEntry(type); | |
| 78 } | |
| 79 | |
| 80 cc::UIResourceId SystemUIResourceManagerImpl::GetUIResourceId( | |
| 81 ResourceType type) { | |
| 82 return GetEntry(type)->GetUIResourceId(); | |
| 83 } | |
| 84 | |
| 85 SystemUIResourceManagerImpl::Entry* SystemUIResourceManagerImpl::GetEntry( | |
| 86 ResourceType type) { | |
| 87 DCHECK_GE(type, RESOURCE_TYPE_FIRST); | |
| 88 DCHECK_LE(type, RESOURCE_TYPE_LAST); | |
| 89 if (!resource_map_[type]) { | |
| 90 resource_map_[type].reset(new Entry(ui_resource_provider_)); | |
| 91 // Lazily build the resource. | |
| 92 BuildResource(type); | |
| 93 } | |
| 94 return resource_map_[type].get(); | |
| 95 } | |
| 96 | |
| 97 void SystemUIResourceManagerImpl::BuildResource(ResourceType type) { | |
| 98 DCHECK(GetEntry(type)->bitmap().empty()); | |
| 99 | |
| 100 // Instead of blocking the main thread, we post a task to load the bitmap. | |
| 101 SkBitmap* bitmap = new SkBitmap(); | |
| 102 base::Closure load_bitmap = | |
| 103 base::Bind(&SystemUIResourceManagerImpl::LoadBitmap, type, bitmap); | |
| 104 base::Closure finished_load = | |
| 105 base::Bind(&SystemUIResourceManagerImpl::OnFinishedLoadBitmap, | |
| 106 weak_factory_.GetWeakPtr(), | |
| 107 type, | |
| 108 base::Owned(bitmap)); | |
| 109 base::WorkerPool::PostTaskAndReply( | |
| 110 FROM_HERE, load_bitmap, finished_load, true); | |
| 111 } | |
| 112 | |
| 113 void SystemUIResourceManagerImpl::LoadBitmap(ResourceType type, | |
| 114 SkBitmap* bitmap_holder) { | |
| 115 SkBitmap bitmap; | |
| 116 switch (type) { | |
| 117 case ui::SystemUIResourceManager::OVERSCROLL_EDGE: | |
| 118 bitmap = gfx::CreateSkBitmapFromAndroidResource( | |
| 119 "android:drawable/overscroll_edge", gfx::Size(128, 12)); | |
| 120 break; | |
| 121 case ui::SystemUIResourceManager::OVERSCROLL_GLOW: | |
| 122 bitmap = gfx::CreateSkBitmapFromAndroidResource( | |
| 123 "android:drawable/overscroll_glow", gfx::Size(128, 64)); | |
| 124 break; | |
| 125 } | |
| 126 bitmap.setImmutable(); | |
| 127 *bitmap_holder = bitmap; | |
| 128 } | |
| 129 | |
| 130 void SystemUIResourceManagerImpl::OnFinishedLoadBitmap( | |
| 131 ResourceType type, | |
| 132 SkBitmap* bitmap_holder) { | |
| 133 DCHECK(bitmap_holder); | |
| 134 GetEntry(type)->SetBitmap(*bitmap_holder); | |
| 135 } | |
| 136 | |
| 137 } // namespace content | |
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Chromium Code Reviews
Issue 454863003:
Revert of [Android] Use UIResource for overscroll glow (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master