ui/android/window_android.cc

   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 #include "ui/android/window_android.h"
   6
   7 #include "base/android/jni_android.h"
   8 #include "base/android/jni_array.h"
   9 #include "base/android/jni_weak_ref.h"
  10 #include "base/android/scoped_java_ref.h"
  11 #include "jni/WindowAndroid_jni.h"
  12 #include "ui/android/window_android_compositor.h"
  13 #include "ui/android/window_android_observer.h"
  14
  15 namespace ui {
  16
  17 using base::android::AttachCurrentThread;
  18 using base::android::ScopedJavaLocalRef;
  19
  20 WindowAndroid::WindowAndroid(JNIEnv* env, jobject obj) : compositor_(NULL) {
  21   java_window_.Reset(env, obj);
  22 }
  23
  24 void WindowAndroid::Destroy(JNIEnv* env, jobject obj) {
  25   delete this;
  26 }
  27
  28 ScopedJavaLocalRef<jobject> WindowAndroid::GetJavaObject() {
  29   return base::android::ScopedJavaLocalRef<jobject>(java_window_);
  30 }
  31
  32 bool WindowAndroid::RegisterWindowAndroid(JNIEnv* env) {
  33   return RegisterNativesImpl(env);
  34 }
  35
  36 WindowAndroid::~WindowAndroid() {
  37   DCHECK(!compositor_);
  38 }
  39
  40 void WindowAndroid::OnCompositingDidCommit() {
  41   FOR_EACH_OBSERVER(WindowAndroidObserver,
  42                     observer_list_,
  43                     OnCompositingDidCommit());
  44 }
  45
  46 void WindowAndroid::OnVisibilityChanged(bool visible) {
  47   FOR_EACH_OBSERVER(WindowAndroidObserver, observer_list_,
  48                     OnRootWindowVisibilityChanged(visible));
  49 }
  50
  51 void WindowAndroid::AddObserver(WindowAndroidObserver* observer) {
  52   if (!observer_list_.HasObserver(observer))
  53     observer_list_.AddObserver(observer);
  54 }
  55
  56 void WindowAndroid::RemoveObserver(WindowAndroidObserver* observer) {
  57   observer_list_.RemoveObserver(observer);
  58 }
  59
  60 void WindowAndroid::AttachCompositor(WindowAndroidCompositor* compositor) {
  61   if (compositor_ && compositor != compositor_)
  62     DetachCompositor();
  63
  64   compositor_ = compositor;
  65   FOR_EACH_OBSERVER(WindowAndroidObserver,
  66                     observer_list_,
  67                     OnAttachCompositor());
  68 }
  69
  70 void WindowAndroid::DetachCompositor() {
  71   compositor_ = NULL;
  72   FOR_EACH_OBSERVER(WindowAndroidObserver,
  73                     observer_list_,
  74                     OnDetachCompositor());
  75   observer_list_.Clear();
  76 }
  77
  78 void WindowAndroid::RequestVSyncUpdate() {
  79   JNIEnv* env = AttachCurrentThread();
  80   Java_WindowAndroid_requestVSyncUpdate(env, GetJavaObject().obj());
  81 }
  82
  83 void WindowAndroid::SetNeedsAnimate() {
  84   if (compositor_)
  85     compositor_->SetNeedsAnimate();
  86 }
  87
  88 void WindowAndroid::Animate(base::TimeTicks begin_frame_time) {
  89   FOR_EACH_OBSERVER(
  90       WindowAndroidObserver, observer_list_, OnAnimate(begin_frame_time));
  91 }
  92
  93 void WindowAndroid::OnVSync(JNIEnv* env,
  94                             jobject obj,
  95                             jlong time_micros,
  96                             jlong period_micros) {
  97   base::TimeTicks frame_time(base::TimeTicks::FromInternalValue(time_micros));
  98   base::TimeDelta vsync_period(
  99       base::TimeDelta::FromMicroseconds(period_micros));
 100   FOR_EACH_OBSERVER(
 101       WindowAndroidObserver,
 102       observer_list_,
 103       OnVSync(frame_time, vsync_period));
 104   if (compositor_)
 105     compositor_->OnVSync(frame_time, vsync_period);
 106 }
 107
 108 void WindowAndroid::OnActivityResumed(JNIEnv* env, jobject obj) {
 109   FOR_EACH_OBSERVER(WindowAndroidObserver, observer_list_, OnActivityResumed());
 110 }
 111
 112 void WindowAndroid::OnActivityPaused(JNIEnv* env, jobject obj) {
 113   FOR_EACH_OBSERVER(WindowAndroidObserver, observer_list_, OnActivityPaused());
 114 }
 115
 116 // ----------------------------------------------------------------------------
 117 // Native JNI methods
 118 // ----------------------------------------------------------------------------
 119
 120 jlong Init(JNIEnv* env, jobject obj) {
 121   WindowAndroid* window = new WindowAndroid(env, obj);
 122   return reinterpret_cast<intptr_t>(window);
 123 }
 124
 125 }  // namespace ui