Enable hide animation for login screen.

chrome/browser/chromeos/login/webui_login_display_host.cc

 // Copyright (c) 2012 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 "chrome/browser/chromeos/login/webui_login_display_host.h"
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/time.h"
 #include "chrome/browser/chromeos/login/oobe_display.h"
 #include "chrome/browser/chromeos/login/webui_login_display.h"
 #include "chrome/browser/chromeos/login/webui_login_view.h"
 #include "chrome/browser/chromeos/login/wizard_controller.h"
 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
 #include "content/public/browser/web_ui.h"
 #include "ui/views/widget/widget.h"
 
 #if defined(USE_AURA)
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
+#include "ash/wm/window_animations.h"
 #include "ui/aura/window.h"
 #endif
 
 namespace chromeos {
 
 namespace {
 
 // URL which corresponds to the login WebUI.
 const char kLoginURL[] = "chrome://oobe/login";
 // URL which corresponds to the OOBE WebUI.
 const char kOobeURL[] = "chrome://oobe";
 
+// Duration of sign-in transition animation.
+const int kLoginFadeoutTransitionDurationMs = 700;
+
 }  // namespace
 
 // WebUILoginDisplayHost -------------------------------------------------------
 
 WebUILoginDisplayHost::WebUILoginDisplayHost(const gfx::Rect& background_bounds)
     : BaseLoginDisplayHost(background_bounds),
       login_window_(NULL),
       login_view_(NULL),
       webui_login_display_(NULL) {
 }
 
 WebUILoginDisplayHost::~WebUILoginDisplayHost() {
-  CloseWindow();
+  if (login_window_)
+    login_window_->Close();
 }
 
 // LoginDisplayHost implementation ---------------------------------------------
 
 LoginDisplay* WebUILoginDisplayHost::CreateLoginDisplay(
     LoginDisplay::Delegate* delegate) {
   webui_login_display_ = new WebUILoginDisplay(delegate);
   webui_login_display_->set_background_bounds(background_bounds());
   return webui_login_display_;
 }
@@ skipping 56 matching lines @@
 
 void WebUILoginDisplayHost::StartSignInScreen() {
   if (!login_window_)
     LoadURL(GURL(kLoginURL));
 
   BaseLoginDisplayHost::StartSignInScreen();
   CHECK(webui_login_display_);
   GetOobeUI()->ShowSigninScreen(webui_login_display_);
 }
 
-void WebUILoginDisplayHost::CloseWindow() {
+bvoid WebUILoginDisplayHost::OnBrowserCreated() {

[Nikita (slow), 2012/01/31 15:26:24]

void

[oshima, 2012/01/31 17:47:51]

Done.

+#if defined(USE_AURA)

[Nikita (slow), 2012/01/31 15:26:24]

Probably we don't need USE_AURA here?

[oshima, 2012/01/31 17:47:51]

We can do this on aura because window creation/deletion is synchronous on Aura.
It's async on native X/Gtk, and IIRC, we rely on WM to sync hiding and showing
browser window.

+  // Close lock window now so that the launched browser can receive focus.
   if (login_window_) {
     login_window_->Close();
     login_window_ = NULL;
     login_view_ = NULL;
   }
+#endif
 }
 
 void WebUILoginDisplayHost::LoadURL(const GURL& url) {
   if (!login_window_) {
     views::Widget::InitParams params(
         views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
     params.bounds = background_bounds();
 #if defined(USE_AURA)
     params.show_state = ui::SHOW_STATE_FULLSCREEN;
 #endif
 
     login_window_ = new views::Widget;
     login_window_->Init(params);
     login_view_ = new WebUILoginView();
 
     login_view_->Init(login_window_);
 
 #if defined(USE_AURA)
     ash::Shell::GetInstance()->GetContainer(
         ash::internal::kShellWindowId_LockScreenContainer)->
         AddChild(login_window_->GetNativeView());
+    ash::SetWindowVisibilityAnimationDuration(
+        login_window_->GetNativeView(),
+        base::TimeDelta::FromMilliseconds(kLoginFadeoutTransitionDurationMs));
+    ash::SetWindowVisibilityAnimationPhase(
+        login_window_->GetNativeView(),
+        ash::ANIMATE_HIDE);
 #endif
 
     login_window_->SetContentsView(login_view_);
     login_view_->UpdateWindowType();
 
     login_window_->Show();
 #if defined(USE_AURA)
     login_window_->GetNativeView()->SetName("WebUILoginView");
 #endif
     login_view_->OnWindowCreated();
   }
   login_view_->LoadURL(url);
 }
 
 OobeUI* WebUILoginDisplayHost::GetOobeUI() const {
   return static_cast<OobeUI*>(login_view_->GetWebUI()->GetController());
 }
 
 WizardController* WebUILoginDisplayHost::CreateWizardController() {
   // TODO(altimofeev): ensure that WebUI is ready.
   OobeDisplay* oobe_display = GetOobeUI();
   return new WizardController(this, oobe_display);
 }
 
 }  // namespace chromeos