content/browser/android/content_view_render_view.cc

   1 // Copyright (c) 2012 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 "content/browser/android/content_view_render_view.h"
   6
   7 #include "base/android/jni_android.h"
   8 #include "base/android/jni_string.h"
   9 #include "base/android/scoped_java_ref.h"
  10 #include "base/bind.h"
  11 #include "base/lazy_instance.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/message_loop/message_loop.h"
  14 #include "cc/layers/layer.h"
  15 #include "content/browser/android/content_view_core_impl.h"
  16 #include "content/public/browser/android/compositor.h"
  17 #include "content/public/browser/android/content_view_layer_renderer.h"
  18 #include "content/public/browser/android/layer_tree_build_helper.h"
  19 #include "content/public/browser/android/ui_resource_provider.h"
  20 #include "jni/ContentViewRenderView_jni.h"
  21 #include "ui/gfx/android/java_bitmap.h"
  22 #include "ui/gfx/size.h"
  23
  24 #include <android/bitmap.h>
  25 #include <android/native_window_jni.h>
  26
  27 using base::android::ScopedJavaLocalRef;
  28
  29 namespace content {
  30
  31 namespace {
  32
  33 class LayerTreeBuildHelperImpl : public LayerTreeBuildHelper {
  34  public:
  35   LayerTreeBuildHelperImpl() {}
  36   virtual ~LayerTreeBuildHelperImpl() {}
  37
  38   virtual scoped_refptr<cc::Layer> GetLayerTree(
  39       scoped_refptr<cc::Layer> content_root_layer) override {
  40     return content_root_layer;
  41   }
  42
  43  private:
  44   DISALLOW_COPY_AND_ASSIGN(LayerTreeBuildHelperImpl);
  45 };
  46
  47 }  // anonymous namespace
  48
  49 // static
  50 bool ContentViewRenderView::RegisterContentViewRenderView(JNIEnv* env) {
  51   return RegisterNativesImpl(env);
  52 }
  53
  54 ContentViewRenderView::ContentViewRenderView(JNIEnv* env,
  55                                              jobject obj,
  56                                              gfx::NativeWindow root_window)
  57     : layer_tree_build_helper_(new LayerTreeBuildHelperImpl()),
  58       root_window_(root_window),
  59       current_surface_format_(0) {
  60   java_obj_.Reset(env, obj);
  61 }
  62
  63 ContentViewRenderView::~ContentViewRenderView() {
  64 }
  65
  66 void ContentViewRenderView::SetLayerTreeBuildHelper(JNIEnv* env,
  67                                                     jobject obj,
  68                                                     jlong native_build_helper) {
  69   CHECK(native_build_helper);
  70
  71   LayerTreeBuildHelper* build_helper =
  72       reinterpret_cast<LayerTreeBuildHelper*>(native_build_helper);
  73   layer_tree_build_helper_.reset(build_helper);
  74   InitCompositor();
  75 }
  76 // static
  77 static jlong Init(JNIEnv* env,
  78                   jobject obj,
  79                   jlong native_root_window) {
  80   gfx::NativeWindow root_window =
  81       reinterpret_cast<gfx::NativeWindow>(native_root_window);
  82   ContentViewRenderView* content_view_render_view =
  83       new ContentViewRenderView(env, obj, root_window);
  84   return reinterpret_cast<intptr_t>(content_view_render_view);
  85 }
  86
  87 void ContentViewRenderView::Destroy(JNIEnv* env, jobject obj) {
  88   delete this;
  89 }
  90
  91 void ContentViewRenderView::SetCurrentContentViewCore(
  92     JNIEnv* env, jobject obj, jlong native_content_view_core) {
  93   InitCompositor();
  94   ContentViewCoreImpl* content_view_core =
  95       reinterpret_cast<ContentViewCoreImpl*>(native_content_view_core);
  96   compositor_->SetRootLayer(content_view_core
  97                                 ? layer_tree_build_helper_->GetLayerTree(
  98                                       content_view_core->GetLayer())
  99                                 : scoped_refptr<cc::Layer>());
 100 }
 101
 102 void ContentViewRenderView::SurfaceCreated(
 103     JNIEnv* env, jobject obj) {
 104   current_surface_format_ = 0;
 105   InitCompositor();
 106 }
 107
 108 void ContentViewRenderView::SurfaceDestroyed(JNIEnv* env, jobject obj) {
 109   compositor_->SetSurface(NULL);
 110   current_surface_format_ = 0;
 111 }
 112
 113 void ContentViewRenderView::SurfaceChanged(JNIEnv* env, jobject obj,
 114     jint format, jint width, jint height, jobject surface) {
 115   if (current_surface_format_ != format) {
 116     current_surface_format_ = format;
 117     compositor_->SetSurface(surface);
 118   }
 119   compositor_->SetWindowBounds(gfx::Size(width, height));
 120 }
 121
 122 void ContentViewRenderView::SetOverlayVideoMode(
 123     JNIEnv* env, jobject obj, bool enabled) {
 124   compositor_->SetHasTransparentBackground(enabled);
 125   SetNeedsComposite(env, obj);
 126 }
 127
 128 void ContentViewRenderView::SetNeedsComposite(JNIEnv* env, jobject obj) {
 129   if (compositor_)
 130     compositor_->SetNeedsComposite();
 131 }
 132
 133 void ContentViewRenderView::Layout() {
 134   JNIEnv* env = base::android::AttachCurrentThread();
 135   Java_ContentViewRenderView_onCompositorLayout(env, java_obj_.obj());
 136 }
 137
 138 void ContentViewRenderView::OnSwapBuffersCompleted(int pending_swap_buffers) {
 139   JNIEnv* env = base::android::AttachCurrentThread();
 140   Java_ContentViewRenderView_onSwapBuffersCompleted(env, java_obj_.obj());
 141 }
 142
 143 void ContentViewRenderView::InitCompositor() {
 144   if (!compositor_)
 145     compositor_.reset(Compositor::Create(this, root_window_));
 146 }
 147
 148 jlong ContentViewRenderView::GetUIResourceProvider(JNIEnv* env,
 149                                                    jobject obj) {
 150   if (!compositor_)
 151     return 0;
 152   return reinterpret_cast<intptr_t>(&compositor_->GetUIResourceProvider());
 153 }
 154 }  // namespace content