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