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 <vector>
  10
  11 #include "base/android/jni_weak_ref.h"
  12 #include "base/android/scoped_java_ref.h"
  13 #include "base/observer_list.h"
  14 #include "base/time/time.h"
  15 #include "ui/android/ui_android_export.h"
  16 #include "ui/gfx/geometry/vector2d_f.h"
  17
  18 namespace ui {
  19
  20 class WindowAndroidCompositor;
  21 class WindowAndroidObserver;
  22
  23 // Android implementation of the activity window.
  24 class UI_ANDROID_EXPORT WindowAndroid {
  25  public:
  26   WindowAndroid(JNIEnv* env, jobject obj);
  27
  28   void Destroy(JNIEnv* env, jobject obj);
  29
  30   base::android::ScopedJavaLocalRef<jobject> GetJavaObject();
  31
  32   static bool RegisterWindowAndroid(JNIEnv* env);
  33
  34   // The content offset is used to translate snapshots to the correct part of
  35   // the window.
  36   void set_content_offset(const gfx::Vector2dF& content_offset) {
  37     content_offset_ = content_offset;
  38   }
  39
  40   gfx::Vector2dF content_offset() const {
  41     return content_offset_;
  42   }
  43
  44   // Compositor callback relay.
  45   void OnCompositingDidCommit();
  46   void OnVisibilityChanged(bool visible);
  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 OnVSync(JNIEnv* env,
  59                jobject obj,
  60                jlong time_micros,
  61                jlong period_micros);
  62   void Animate(base::TimeTicks begin_frame_time);
  63   void OnActivityPaused(JNIEnv* env, jobject obj);
  64   void OnActivityResumed(JNIEnv* env, jobject obj);
  65
  66  private:
  67   ~WindowAndroid();
  68
  69   base::android::ScopedJavaGlobalRef<jobject> java_window_;
  70   gfx::Vector2dF content_offset_;
  71   WindowAndroidCompositor* compositor_;
  72
  73   ObserverList<WindowAndroidObserver> observer_list_;
  74
  75   DISALLOW_COPY_AND_ASSIGN(WindowAndroid);
  76 };
  77
  78 }  // namespace ui
  79
  80 #endif  // UI_ANDROID_WINDOW_ANDROID_H_