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