ui/android/window_android.h

   1 // Copyright 2013 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 UI_ANDROID_WINDOW_ANDROID_H_
   6 #define UI_ANDROID_WINDOW_ANDROID_H_
   7
   8 #include <jni.h>
   9 #include <string>
  10 #include <vector>
  11
  12 #include "base/android/jni_weak_ref.h"
  13 #include "base/android/scoped_java_ref.h"
  14 #include "base/observer_list.h"
  15 #include "base/time/time.h"
  16 #include "ui/android/ui_android_export.h"
  17 #include "ui/gfx/geometry/vector2d_f.h"
  18
  19 namespace ui {
  20
  21 class WindowAndroidCompositor;
  22 class WindowAndroidObserver;
  23
  24 // Android implementation of the activity window.
  25 class UI_ANDROID_EXPORT WindowAndroid {
  26  public:
  27   WindowAndroid(JNIEnv* env, jobject obj);
  28
  29   void Destroy(JNIEnv* env, jobject obj);
  30
  31   base::android::ScopedJavaLocalRef<jobject> GetJavaObject();
  32
  33   static bool RegisterWindowAndroid(JNIEnv* env);
  34
  35   // The content offset is used to translate snapshots to the correct part of
  36   // the window.
  37   void set_content_offset(const gfx::Vector2dF& content_offset) {
  38     content_offset_ = content_offset;
  39   }
  40
  41   gfx::Vector2dF content_offset() const {
  42     return content_offset_;
  43   }
  44
  45   // Compositor callback relay.
  46   void OnCompositingDidCommit();
  47
  48   void AttachCompositor(WindowAndroidCompositor* compositor);
  49   void DetachCompositor();
  50
  51   void AddObserver(WindowAndroidObserver* observer);
  52   void RemoveObserver(WindowAndroidObserver* observer);
  53
  54   WindowAndroidCompositor* GetCompositor() { return compositor_; }
  55
  56   void RequestVSyncUpdate();
  57   void SetNeedsAnimate();
  58   void Animate(base::TimeTicks begin_frame_time);
  59   void OnVSync(JNIEnv* env,
  60                jobject obj,
  61                jlong time_micros,
  62                jlong period_micros);
  63   void OnVisibilityChanged(JNIEnv* env, jobject obj, bool visible);
  64   void OnActivityStopped(JNIEnv* env, jobject obj);
  65   void OnActivityStarted(JNIEnv* env, jobject obj);
  66
  67   // Return whether the specified Android permission is granted.
  68   bool HasPermission(const std::string& permission);
  69   // Return whether the specified Android permission can be requested by Chrome.
  70   bool CanRequestPermission(const std::string& permission);
  71
  72  private:
  73   ~WindowAndroid();
  74
  75   base::android::ScopedJavaGlobalRef<jobject> java_window_;
  76   gfx::Vector2dF content_offset_;
  77   WindowAndroidCompositor* compositor_;
  78
  79   base::ObserverList<WindowAndroidObserver> observer_list_;
  80
  81   DISALLOW_COPY_AND_ASSIGN(WindowAndroid);
  82 };
  83
  84 }  // namespace ui
  85
  86 #endif  // UI_ANDROID_WINDOW_ANDROID_H_