chromecast/browser/cast_content_window.cc

   1 // Copyright 2014 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 "chromecast/browser/cast_content_window.h"
   6
   7 #include "base/threading/thread_restrictions.h"
   8 #include "content/public/browser/web_contents.h"
   9 #include "ipc/ipc_message.h"
  10
  11 #if defined(USE_AURA)
  12 #include "ui/aura/env.h"
  13 #include "ui/aura/layout_manager.h"
  14 #include "ui/aura/test/test_screen.h"
  15 #include "ui/aura/window.h"
  16 #include "ui/aura/window_tree_host.h"
  17 #endif
  18
  19 namespace chromecast {
  20
  21 #if defined(USE_AURA)
  22 class CastFillLayout : public aura::LayoutManager {
  23  public:
  24   explicit CastFillLayout(aura::Window* root) : root_(root) {}
  25   virtual ~CastFillLayout() {}
  26
  27  private:
  28   virtual void OnWindowResized() override {}
  29
  30   virtual void OnWindowAddedToLayout(aura::Window* child) override {
  31     child->SetBounds(root_->bounds());
  32   }
  33
  34   virtual void OnWillRemoveWindowFromLayout(aura::Window* child) override {}
  35
  36   virtual void OnWindowRemovedFromLayout(aura::Window* child) override {}
  37
  38   virtual void OnChildWindowVisibilityChanged(aura::Window* child,
  39                                               bool visible) override {}
  40
  41   virtual void SetChildBounds(aura::Window* child,
  42                               const gfx::Rect& requested_bounds) override {
  43     SetChildBoundsDirect(child, requested_bounds);
  44   }
  45
  46   aura::Window* root_;
  47
  48   DISALLOW_COPY_AND_ASSIGN(CastFillLayout);
  49 };
  50 #endif
  51
  52 CastContentWindow::CastContentWindow() {}
  53
  54 CastContentWindow::~CastContentWindow() {
  55 #if defined(USE_AURA)
  56   window_tree_host_.reset();
  57   // We don't delete the screen here to avoid a CHECK failure when
  58   // the screen size is queried periodically for metric gathering. b/18101124
  59 #endif
  60 }
  61
  62 scoped_ptr<content::WebContents> CastContentWindow::Create(
  63     const gfx::Size& initial_size,
  64     content::BrowserContext* browser_context) {
  65 #if defined(USE_AURA)
  66   // Aura initialization
  67   // TODO(lcwu): We only need a minimal implementation of gfx::Screen
  68   // and aura's TestScreen will do for us now. We should change to use
  69   // ozone's screen implementation when it is ready.
  70   gfx::Screen* old_screen =
  71       gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_NATIVE);
  72   if (!old_screen || old_screen->GetPrimaryDisplay().size() != initial_size) {
  73     gfx::Screen* new_screen = aura::TestScreen::Create(initial_size);
  74     DCHECK(new_screen) << "New screen not created.";
  75     gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE, new_screen);
  76     if (old_screen) {
  77       delete old_screen;
  78     }
  79   }
  80   CHECK(aura::Env::GetInstance());
  81   window_tree_host_.reset(
  82       aura::WindowTreeHost::Create(gfx::Rect(initial_size)));
  83   window_tree_host_->InitHost();
  84   window_tree_host_->window()->SetLayoutManager(
  85       new CastFillLayout(window_tree_host_->window()));
  86   window_tree_host_->Show();
  87 #endif
  88
  89   content::WebContents::CreateParams create_params(browser_context, NULL);
  90   create_params.routing_id = MSG_ROUTING_NONE;
  91   create_params.initial_size = initial_size;
  92   content::WebContents* web_contents = content::WebContents::Create(
  93       create_params);
  94
  95 #if defined(USE_AURA)
  96   // Add and show content's view/window
  97   aura::Window* content_window = web_contents->GetNativeView();
  98   aura::Window* parent = window_tree_host_->window();
  99   if (!parent->Contains(content_window)) {
 100     parent->AddChild(content_window);
 101   }
 102   content_window->Show();
 103 #endif
 104
 105   return make_scoped_ptr(web_contents);
 106 }
 107
 108 }  // namespace chromecast