mus: Allow embedder to intercept events.

content/browser/renderer_host/render_widget_host_view_mus.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/renderer_host/render_widget_host_view_mus.h"
 
 #include <utility>
 
 #include "build/build_config.h"
+#include "components/mus/public/cpp/property_type_converters.h"
 #include "components/mus/public/cpp/window.h"
+#include "components/mus/public/cpp/window_property.h"
 #include "components/mus/public/cpp/window_tree_client.h"
+#include "components/mus/public/interfaces/window_manager_constants.mojom.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/common/render_widget_window_tree_client_factory.mojom.h"
 #include "content/common/text_input_state.h"
 #include "content/public/common/mojo_shell_connection.h"
 #include "services/shell/public/cpp/connector.h"
 #include "ui/aura/client/screen_position_client.h"
 #include "ui/aura/window.h"
 #include "ui/base/hit_test.h"
 
 namespace blink {
 struct WebScreenInfo;
 }
 
 namespace content {
 
 RenderWidgetHostViewMus::RenderWidgetHostViewMus(mus::Window* parent_window,
                                                  RenderWidgetHostImpl* host)
     : host_(host), aura_window_(nullptr) {
   DCHECK(parent_window);
   mus::Window* window = parent_window->window_tree()->NewWindow();
   window->SetVisible(true);
   window->SetBounds(gfx::Rect(300, 300));
+  window->set_input_event_handler(this);
   parent_window->AddChild(window);
   mus_window_.reset(new mus::ScopedWindowPtr(window));
   host_->SetView(this);
 
   // Connect to the renderer, pass it a WindowTreeClient interface request
   // and embed that client inside our mus window.
   mojom::RenderWidgetWindowTreeClientFactoryPtr factory;
   host_->GetProcess()->GetChildConnection()->GetInterface(&factory);
 
   mus::mojom::WindowTreeClientPtr window_tree_client;
   factory->CreateWindowTreeClientForRenderWidget(
       host_->GetRoutingID(), mojo::GetProxy(&window_tree_client));
-  mus_window_->window()->Embed(std::move(window_tree_client));
+  mus_window_->window()->Embed(std::move(window_tree_client),
+                               mus::mojom::kEmbedFlagEmbedderInterceptsEvents);
 }
 
 RenderWidgetHostViewMus::~RenderWidgetHostViewMus() {}
 
 void RenderWidgetHostViewMus::InternalSetBounds(const gfx::Rect& rect) {
   aura_window_->SetBounds(rect);
   gfx::Rect bounds = aura_window_->GetBoundsInRootWindow();
   mus_window_->window()->SetBounds(bounds);
   host_->WasResized();
 }
@@ skipping 233 matching lines @@
 #endif  // defined(OS_MACOSX)
 
 void RenderWidgetHostViewMus::LockCompositingSurface() {
   NOTIMPLEMENTED();
 }
 
 void RenderWidgetHostViewMus::UnlockCompositingSurface() {
   NOTIMPLEMENTED();
 }
 
+void RenderWidgetHostViewMus::OnWindowInputEvent(
+    mus::Window* window,
+    const ui::Event& event,
+    std::unique_ptr<base::Callback<void(mus::mojom::EventResult)>>*
+        ack_callback) {
+  // TODO(sad): Dispatch |event| to the RenderWidgetHost.
+}
+
 }  // namespace content