blimp: Move compositing, input and render widget feature to client/core.

blimp/client/core/contents/blimp_contents_impl.cc

Index: blimp/client/core/contents/blimp_contents_impl.cc
diff --git a/blimp/client/core/contents/blimp_contents_impl.cc b/blimp/client/core/contents/blimp_contents_impl.cc
index bfbbca356113bdd5f4e70743840be803cef4daf0..e6508e4d4f0ec086e3eb99939e66ace3f6fa02d2 100644
--- a/blimp/client/core/contents/blimp_contents_impl.cc
+++ b/blimp/client/core/contents/blimp_contents_impl.cc
@@ -6,7 +6,10 @@
 
 #include "base/memory/ptr_util.h"
 #include "base/supports_user_data.h"
+#include "blimp/client/core/compositor/compositor_deps_provider.h"
+#include "blimp/client/core/render_widget/blimp_render_widget.h"
 #include "blimp/client/public/contents/blimp_contents_observer.h"
+#include "cc/proto/compositor_message.pb.h"
 
 #if defined(OS_ANDROID)
 #include "blimp/client/core/contents/android/blimp_contents_impl_android.h"
@@ -17,15 +20,33 @@ namespace client {
 
 namespace {
 
+const int kDummyTabId = 0;
+
 #if defined(OS_ANDROID)
 const char kBlimpContentsImplAndroidKey[] = "blimp_contents_impl_android";
 #endif  // OS_ANDROID
 }
 
-BlimpContentsImpl::BlimpContentsImpl(int id)
-    : navigation_controller_(this, nullptr), id_(id) {}
+BlimpContentsImpl::BlimpContentsImpl(
+    int id,
+    CompositorDepsProvider* compositor_deps_provider,
+    RenderWidgetFeature* render_widget_feature)
+    : id_(id),
+      compositor_deps_provider_(compositor_deps_provider),
+      render_widget_feature_(render_widget_feature),
+      visible_(false),
+      window_(gfx::kNullAcceleratedWidget),
+      active_widget_(nullptr),
+      navigation_controller_(this, nullptr) {
+  render_widget_feature_->SetDelegate(kDummyTabId, this);
+}
 
 BlimpContentsImpl::~BlimpContentsImpl() {
+  // Drop any references to the |window_|
+  if (active_widget_)
+    active_widget_->SetAcceleratedWidget(gfx::kNullAcceleratedWidget);
+  window_ = gfx::kNullAcceleratedWidget;
+
   FOR_EACH_OBSERVER(BlimpContentsObserver, observers_, BlimpContentsDying());
 }
 
@@ -70,5 +91,109 @@ void BlimpContentsImpl::OnNavigationStateChanged() {
                     OnNavigationStateChanged());
 }
 
+void BlimpContentsImpl::SetVisible(bool visible) {
+  visible_ = visible;
+  if (active_widget_)
+    active_widget_->SetVisible(visible);
+}
+
+void BlimpContentsImpl::SetAcceleratedWidget(gfx::AcceleratedWidget widget) {
+  DCHECK(compositor_deps_provider_->use_direct_rendering());
+
+  // Drop any references to the current |window_| first.
+  if (active_widget_)
+    active_widget_->SetAcceleratedWidget(gfx::kNullAcceleratedWidget);
+
+  window_ = widget;
+
+  if (active_widget_)
+    active_widget_->SetAcceleratedWidget(window_);
+}
+
+BlimpRenderWidget* BlimpContentsImpl::GetActiveWidget() const {
+  return active_widget_;
+}
+
+void BlimpContentsImpl::SendWebGestureEvent(
+    BlimpRenderWidget* render_widget,
+    const blink::WebGestureEvent& gesture_event) {
+  render_widget_feature_->SendWebGestureEvent(
+      kDummyTabId, render_widget->GetId(), gesture_event);
+}
+
+void BlimpContentsImpl::SendCompositorMessage(
+    BlimpRenderWidget* render_widget,
+    const cc::proto::CompositorMessage& message) {
+  render_widget_feature_->SendCompositorMessage(
+      kDummyTabId, render_widget->GetId(), message);
+}
+
+void BlimpContentsImpl::CompositorDidCompleteSwapBuffers() {
+  if (!did_complete_swap_buffers_.is_null())
+    did_complete_swap_buffers_.Run();
+}
+
+BlimpRenderWidget* BlimpContentsImpl::GetWidgetForId(int render_widget_id) {
+  RenderWidgetMap::const_iterator it = render_widgets_.find(render_widget_id);
+  if (it == render_widgets_.end())
+    return nullptr;
+  return it->second.get();
+}
+
+std::unique_ptr<BlimpRenderWidget> BlimpContentsImpl::CreateBlimpRenderWidget(
+    int32_t render_widget_id,
+    CompositorDepsProvider* compositor_deps_provider,
+    BlimpRenderWidgetDelegate* delegate) {
+  return base::MakeUnique<BlimpRenderWidget>(
+      render_widget_id, compositor_deps_provider, delegate);
+}
+
+void BlimpContentsImpl::OnRenderWidgetCreated(int render_widget_id) {
+  CHECK(!GetWidgetForId(render_widget_id));
+
+  render_widgets_[render_widget_id] = CreateBlimpRenderWidget(
+      render_widget_id, compositor_deps_provider_, this);
+}
+
+void BlimpContentsImpl::OnRenderWidgetInitialized(int render_widget_id) {
+  if (active_widget_ && active_widget_->GetId() == render_widget_id)
+    return;
+
+  if (active_widget_) {
+    VLOG(1) << "Hiding currently active compositor for render widget: "
+            << active_widget_->GetId();
+    active_widget_->SetVisible(false);
+    if (compositor_deps_provider_->use_direct_rendering())
+      active_widget_->SetAcceleratedWidget(gfx::kNullAcceleratedWidget);
+  }
+
+  active_widget_ = GetWidgetForId(render_widget_id);
+  CHECK(active_widget_);
+
+  active_widget_->SetVisible(visible_);
+  if (compositor_deps_provider_->use_direct_rendering())
+    active_widget_->SetAcceleratedWidget(window_);
+}
+
+void BlimpContentsImpl::OnRenderWidgetDeleted(int render_widget_id) {
+  RenderWidgetMap::const_iterator it = render_widgets_.find(render_widget_id);
+  CHECK(it != render_widgets_.end());
+
+  // Reset the |active_widget_| if that is what we're destroying right now.
+  if (active_widget_ == it->second.get())
+    active_widget_ = nullptr;
+
+  render_widgets_.erase(it);
+}
+
+void BlimpContentsImpl::OnCompositorMessageReceived(
+    int render_widget_id,
+    std::unique_ptr<cc::proto::CompositorMessage> message) {
+  BlimpRenderWidget* render_widget = GetWidgetForId(render_widget_id);
+  CHECK(render_widget);
+
+  render_widget->OnCompositorMessageReceived(std::move(message));
+}
+
 }  // namespace client
 }  // namespace blimp