ui/base/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_BASE_ANDROID_WINDOW_ANDROID_H_
   6 #define UI_BASE_ANDROID_WINDOW_ANDROID_H_
   7
   8 #include <jni.h>
   9 #include <vector>
  10 #include "base/android/jni_weak_ref.h"
  11 #include "base/android/scoped_java_ref.h"
  12 #include "base/observer_list.h"
  13 #include "base/time/time.h"
  14 #include "ui/base/ui_base_export.h"
  15 #include "ui/gfx/vector2d_f.h"
  16
  17 namespace ui {
  18
  19 class WindowAndroidCompositor;
  20 class WindowAndroidObserver;
  21
  22 // Android implementation of the activity window.
  23 class UI_BASE_EXPORT WindowAndroid {
  24  public:
  25   WindowAndroid(JNIEnv* env, jobject obj, jlong vsync_period);
  26
  27   void Destroy(JNIEnv* env, jobject obj);
  28
  29   base::android::ScopedJavaLocalRef<jobject> GetJavaObject();
  30
  31   static bool RegisterWindowAndroid(JNIEnv* env);
  32
  33   // The content offset is used to translate snapshots to the correct part of
  34   // the window.
  35   void set_content_offset(const gfx::Vector2dF& content_offset) {
  36     content_offset_ = content_offset;
  37   }
  38
  39   gfx::Vector2dF content_offset() const {
  40     return content_offset_;
  41   }
  42
  43   // Compositor callback relay.
  44   void OnCompositingDidCommit();
  45
  46   void AttachCompositor(WindowAndroidCompositor* compositor);
  47   void DetachCompositor();
  48
  49   void AddObserver(WindowAndroidObserver* observer);
  50   void RemoveObserver(WindowAndroidObserver* observer);
  51
  52   WindowAndroidCompositor* GetCompositor() { return compositor_; }
  53
  54   void RequestVSyncUpdate();
  55   void SetNeedsAnimate();
  56   void OnVSync(JNIEnv* env, jobject obj, jlong time_micros);
  57   void Animate(base::TimeTicks begin_frame_time);
  58
  59  private:
  60   ~WindowAndroid();
  61
  62   JavaObjectWeakGlobalRef weak_java_window_;
  63   gfx::Vector2dF content_offset_;
  64   WindowAndroidCompositor* compositor_;
  65   base::TimeDelta vsync_period_;
  66
  67   ObserverList<WindowAndroidObserver> observer_list_;
  68
  69   DISALLOW_COPY_AND_ASSIGN(WindowAndroid);
  70 };
  71
  72 }  // namespace ui
  73
  74 #endif  // UI_BASE_ANDROID_WINDOW_ANDROID_H_