[Chromecast] Reuse the Aura window manager across receiver apps.

chromecast/browser/cast_content_window_linux.cc

 // Copyright 2014 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 "chromecast/browser/cast_content_window_linux.h"
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
-#include "base/threading/thread_restrictions.h"
 #include "chromecast/base/metrics/cast_metrics_helper.h"
 #include "chromecast/base/version.h"
 #include "chromecast/browser/cast_browser_process.h"
-#include "chromecast/graphics/cast_vsync_settings.h"
+#include "chromecast/graphics/cast_window_manager.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/web_contents.h"
 #include "ipc/ipc_message.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
 
 #if defined(USE_AURA)
-#include "chromecast/graphics/cast_screen.h"
-#include "ui/aura/env.h"
-#include "ui/aura/layout_manager.h"
 #include "ui/aura/window.h"
-#include "ui/aura/window_tree_host.h"
-#include "ui/aura/window_tree_host_platform.h"
-#include "ui/base/ime/input_method.h"
 #endif
 
 namespace chromecast {
 namespace shell {
 
-#if defined(USE_AURA)
-class CastFillLayout : public aura::LayoutManager {
- public:
-  explicit CastFillLayout(aura::Window* root) : root_(root) {}
-  ~CastFillLayout() override {}
-
- private:
-  void OnWindowResized() override {}
-
-  void OnWindowAddedToLayout(aura::Window* child) override {
-    child->SetBounds(root_->bounds());
-  }
-
-  void OnWillRemoveWindowFromLayout(aura::Window* child) override {}
-
-  void OnWindowRemovedFromLayout(aura::Window* child) override {}
-
-  void OnChildWindowVisibilityChanged(aura::Window* child,
-                                      bool visible) override {}
-
-  void SetChildBounds(aura::Window* child,
-                      const gfx::Rect& requested_bounds) override {
-    SetChildBoundsDirect(child, requested_bounds);
-  }
-
-  aura::Window* root_;
-
-  DISALLOW_COPY_AND_ASSIGN(CastFillLayout);
-};
-
-// An aura::WindowTreeHost that correctly converts input events.
-class CastWindowTreeHost : public aura::WindowTreeHostPlatform {
- public:
-  CastWindowTreeHost(bool enable_input, const gfx::Rect& bounds);
-  ~CastWindowTreeHost() override;
-
-  // aura::WindowTreeHostPlatform implementation:
-  void DispatchEvent(ui::Event* event) override;
-
- private:
-  const bool enable_input_;
-
-  DISALLOW_COPY_AND_ASSIGN(CastWindowTreeHost);
-};
-
-CastWindowTreeHost::CastWindowTreeHost(bool enable_input,
-                                       const gfx::Rect& bounds)
-    : WindowTreeHostPlatform(bounds), enable_input_(enable_input) {}
-
-CastWindowTreeHost::~CastWindowTreeHost() {}
-
-void CastWindowTreeHost::DispatchEvent(ui::Event* event) {
-  if (!enable_input_) {
-    return;
-  }
-
-  if (event->IsKeyEvent()) {
-    // Convert a RawKeyDown into a character insertion; otherwise
-    // the WebContents will ignore most keyboard input.
-    GetInputMethod()->DispatchKeyEvent(event->AsKeyEvent());
-  } else {
-    WindowTreeHostPlatform::DispatchEvent(event);
-  }
-}
-#endif
-
 // static
 std::unique_ptr<CastContentWindow> CastContentWindow::Create(
     CastContentWindow::Delegate* delegate) {
   DCHECK(delegate);
   return base::WrapUnique(new CastContentWindowLinux());
 }
 
 CastContentWindowLinux::CastContentWindowLinux() : transparent_(false) {}
 
-CastContentWindowLinux::~CastContentWindowLinux() {
-#if defined(USE_AURA)
-  CastVSyncSettings::GetInstance()->RemoveObserver(this);
-  window_tree_host_.reset();
-// We don't delete the screen here to avoid a CHECK failure when
-// the screen size is queried periodically for metric gathering. b/18101124
-#endif
-}
+CastContentWindowLinux::~CastContentWindowLinux() {}
 
 void CastContentWindowLinux::SetTransparent() {
-  DCHECK(!window_tree_host_);
   transparent_ = true;
 }
 
-void CastContentWindowLinux::ShowWebContents(
-    content::WebContents* web_contents) {
-#if defined(USE_AURA)
-  // Aura initialization
-  DCHECK(display::Screen::GetScreen());
-  gfx::Size display_size =
-      display::Screen::GetScreen()->GetPrimaryDisplay().GetSizeInPixel();
-  CHECK(aura::Env::GetInstance());
-  window_tree_host_.reset(new CastWindowTreeHost(
-      CAST_IS_DEBUG_BUILD() /* enable input */, gfx::Rect(display_size)));
-  window_tree_host_->InitHost();
-  window_tree_host_->window()->Show();
-  window_tree_host_->window()->SetLayoutManager(
-      new CastFillLayout(window_tree_host_->window()));
-
-  if (transparent_) {
-    window_tree_host_->compositor()->SetBackgroundColor(SK_ColorTRANSPARENT);
-    window_tree_host_->compositor()->SetHostHasTransparentBackground(true);
-  } else {
-    window_tree_host_->compositor()->SetBackgroundColor(SK_ColorBLACK);
-  }
-
-  CastVSyncSettings::GetInstance()->AddObserver(this);
-  window_tree_host_->compositor()->SetAuthoritativeVSyncInterval(
-      CastVSyncSettings::GetInstance()->GetVSyncInterval());
-
-  window_tree_host_->Show();
-
-  // Add and show content's view/window
-  aura::Window* content_window = web_contents->GetNativeView();
-  aura::Window* parent = window_tree_host_->window();
-  if (!parent->Contains(content_window)) {
-    parent->AddChild(content_window);
-  }
-  content_window->Show();
-#endif
-}
-
 std::unique_ptr<content::WebContents> CastContentWindowLinux::CreateWebContents(
     content::BrowserContext* browser_context) {
   CHECK(display::Screen::GetScreen());
   gfx::Size display_size =
       display::Screen::GetScreen()->GetPrimaryDisplay().size();
 
   content::WebContents::CreateParams create_params(browser_context, NULL);
   create_params.routing_id = MSG_ROUTING_NONE;
   create_params.initial_size = display_size;
   content::WebContents* web_contents =
       content::WebContents::Create(create_params);
 
 #if defined(USE_AURA)
   // Resize window
   aura::Window* content_window = web_contents->GetNativeView();
   content_window->SetBounds(
       gfx::Rect(display_size.width(), display_size.height()));
 #endif
 
   content::WebContentsObserver::Observe(web_contents);
   return base::WrapUnique(web_contents);
 }
 
+void CastContentWindowLinux::ShowWebContents(
+    content::WebContents* web_contents,
+    CastWindowManager* window_manager) {
+  DCHECK(window_manager);
+  window_manager->AddAndShowWindow(web_contents->GetNativeView());
+}
+
 void CastContentWindowLinux::DidFirstVisuallyNonEmptyPaint() {
   metrics::CastMetricsHelper::GetInstance()->LogTimeToFirstPaint();
 }
 
 void CastContentWindowLinux::MediaStartedPlaying(
     const MediaPlayerInfo& media_info,
     const MediaPlayerId& id) {
   metrics::CastMetricsHelper::GetInstance()->LogMediaPlay();
 }
 
 void CastContentWindowLinux::MediaStoppedPlaying(
     const MediaPlayerInfo& media_info,
     const MediaPlayerId& id) {
   metrics::CastMetricsHelper::GetInstance()->LogMediaPause();
 }
 
 void CastContentWindowLinux::RenderViewCreated(
     content::RenderViewHost* render_view_host) {
   content::RenderWidgetHostView* view =
       render_view_host->GetWidget()->GetView();
   if (view) {
     view->SetBackgroundColor(transparent_ ? SK_ColorTRANSPARENT
                                           : SK_ColorBLACK);
   }
 }
 
-void CastContentWindowLinux::OnVSyncIntervalChanged(base::TimeDelta interval) {
-#if defined(USE_AURA)
-  window_tree_host_->compositor()->SetAuthoritativeVSyncInterval(interval);
-#endif
-}
-
 }  // namespace shell
 }  // namespace chromecast