chrome/browser/android/compositor/layer_title_cache.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 CHROME_BROWSER_ANDROID_COMPOSITOR_LAYER_TITLE_CACHE_H_
   6 #define CHROME_BROWSER_ANDROID_COMPOSITOR_LAYER_TITLE_CACHE_H_
   7
   8 #include <jni.h>
   9
  10 #include "base/android/jni_android.h"
  11 #include "base/android/jni_weak_ref.h"
  12 #include "base/bind.h"
  13 #include "base/id_map.h"
  14 #include "cc/resources/ui_resource_client.h"
  15 #include "third_party/skia/include/core/SkBitmap.h"
  16 #include "ui/gfx/geometry/size.h"
  17 #include "ui/gfx/transform.h"
  18
  19 namespace cc {
  20 class Layer;
  21 class UIResourceLayer;
  22 }
  23
  24 namespace ui {
  25 class ResourceManager;
  26 }
  27
  28 namespace chrome {
  29 namespace android {
  30
  31 class DecorationTitle;
  32
  33 // A native component of the Java LayerTitleCache class.  This class
  34 // will build and maintain layers that represent the cached titles in
  35 // the Java class.
  36 class LayerTitleCache {
  37  public:
  38   static LayerTitleCache* FromJavaObject(jobject jobj);
  39
  40   LayerTitleCache(JNIEnv* env,
  41                   jobject jobj,
  42                   jint fade_width,
  43                   jint favicon_start_padding,
  44                   jint favicon_end_padding,
  45                   jint spinner_resource_id,
  46                   jint spinner_incognito_resource_id);
  47   void Destroy(JNIEnv* env, jobject obj);
  48
  49   // Called from Java, updates a native cc::Layer based on the new texture
  50   // information.
  51   void UpdateLayer(JNIEnv* env,
  52                    jobject obj,
  53                    jint tab_id,
  54                    jint title_resource_id,
  55                    jint favicon_resource_id,
  56                    bool is_incognito,
  57                    bool is_rtl);
  58
  59   void ClearExcept(JNIEnv* env, jobject obj, jint except_id);
  60
  61   // Returns the layer that represents the title of tab of tab_id.
  62   // Returns NULL if no layer can be found.
  63   DecorationTitle* GetTitleLayer(int tab_id);
  64
  65   void SetResourceManager(ui::ResourceManager* resource_manager);
  66
  67  private:
  68   virtual ~LayerTitleCache();
  69
  70   IDMap<DecorationTitle, IDMapOwnPointer> layer_cache_;
  71
  72   JavaObjectWeakGlobalRef weak_java_title_cache_;
  73   int fade_width_;
  74   int favicon_start_padding_;
  75   int favicon_end_padding_;
  76
  77   int spinner_resource_id_;
  78   int spinner_incognito_resource_id_;
  79
  80   ui::ResourceManager* resource_manager_;
  81
  82   DISALLOW_COPY_AND_ASSIGN(LayerTitleCache);
  83 };
  84
  85 bool RegisterLayerTitleCache(JNIEnv* env);
  86
  87 }  // namespace android
  88 }  // namespace chrome
  89
  90 #endif  // CHROME_BROWSER_ANDROID_COMPOSITOR_LAYER_TITLE_CACHE_H_