Add system shutdown functionality to DOM Login.

Added functionality to LoginUI to support ShutdownSystem and added link to call
function from login page. This patch also reenables chrome://login on touchui
non-chromeos builds, since that is used for interface testing development.

Patch from Ryan Harrison <rharrison@chromium.org>

BUG=none
TEST=none

Review URL: http://codereview.chromium.org/6282010
Patch from Ryan Harrison <rharrison@chromium.org>.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@72972 0039d316-1c4b-4281-b951-d872f2087c98

4 files changed, 36 insertions, 10 deletions

diff --git a/chrome/browser/chromeos/dom_ui/login/login_ui.cc b/chrome/browser/chromeos/dom_ui/login/login_ui.cc
index cf9d3f5..fe14d5e 100644
--- a/chrome/browser/chromeos/dom_ui/login/login_ui.cc
+++ b/chrome/browser/chromeos/dom_ui/login/login_ui.cc
@@ -15,6 +15,8 @@
 #include "chrome/common/url_constants.h"
 
 #if defined(OS_CHROMEOS)
+#include "chrome/browser/chromeos/cros/cros_library.h"
+#include "chrome/browser/chromeos/cros/power_library.h"
 #include "chrome/browser/chromeos/dom_ui/login/authenticator_facade_cros.h"
 #else
 #include "chrome/browser/chromeos/dom_ui/login/authenticator_facade_stub.h"
@@ -83,6 +85,10 @@ void LoginUIHandler::RegisterMessages() {
       "AuthenticateUser",
       NewCallback(this,
                   &LoginUIHandler::HandleAuthenticateUser));
+  dom_ui_->RegisterMessageCallback(
+      "ShutdownSystem",
+      NewCallback(this,
+                  &LoginUIHandler::HandleShutdownSystem));
 }
 
 void LoginUIHandler::HandleAuthenticateUser(const ListValue* args) {
@@ -115,6 +121,19 @@ void LoginUIHandler::HandleLaunchIncognito(const ListValue* args) {
   login_browser->CloseWindow();
 }
 
+void LoginUIHandler::HandleShutdownSystem(const ListValue* args) {
+#if defined(OS_CHROMEOS)
+  DCHECK(CrosLibrary::Get()->EnsureLoaded());
+  CrosLibrary::Get()->GetPowerLibrary()->RequestShutdown();
+#else
+  // When were are not running in cros we are just shutting the browser instead
+  // of trying to shutdown the system
+  Profile* profile = profile_operations_->GetDefaultProfileByPath();
+  Browser* browser = browser_operations_->GetLoginBrowser(profile);
+  browser->CloseWindow();
+#endif
+}
+
 void LoginUIHandler::OnLoginFailure(const LoginFailure& failure) {
   Profile* profile = profile_operations_->GetDefaultProfileByPath();
   Browser* login_browser = browser_operations_->GetLoginBrowser(profile);
diff --git a/chrome/browser/chromeos/dom_ui/login/login_ui.h b/chrome/browser/chromeos/dom_ui/login/login_ui.h
index b19699e..6d0d550 100644
--- a/chrome/browser/chromeos/dom_ui/login/login_ui.h
+++ b/chrome/browser/chromeos/dom_ui/login/login_ui.h
@@ -57,6 +57,7 @@ class LoginUIHandler : public DOMMessageHandler,
 
   void HandleAuthenticateUser(const ListValue* args);
   void HandleLaunchIncognito(const ListValue* args);
+  void HandleShutdownSystem(const ListValue* args);
 
   // Overridden from LoginStatusConsumer.
   virtual void OnLoginFailure(const chromeos::LoginFailure& failure);
diff --git a/chrome/browser/dom_ui/dom_ui_factory.cc b/chrome/browser/dom_ui/dom_ui_factory.cc
index 2546253..39751c1 100644
--- a/chrome/browser/dom_ui/dom_ui_factory.cc
+++ b/chrome/browser/dom_ui/dom_ui_factory.cc
@@ -158,6 +158,8 @@ static DOMUIFactoryFunction GetDOMUIFactoryFunction(Profile* profile,
 #if defined(TOUCH_UI)
   if (url.host() == chrome::kChromeUIKeyboardHost)
     return &NewDOMUI<KeyboardUI>;
+  if (url.host() == chrome::kChromeUILoginHost)
+    return &NewDOMUI<chromeos::LoginUI>;
 #endif
   if (url.host() == chrome::kChromeUIGpuInternalsHost)
     return &NewDOMUI<GpuInternalsUI>;
@@ -216,11 +218,6 @@ static DOMUIFactoryFunction GetDOMUIFactoryFunction(Profile* profile,
   }
 #endif  // defined(OS_CHROMEOS)
 
-#if defined(OS_CHROMEOS) && defined(TOUCH_UI)
-  if (url.host() == chrome::kChromeUILoginHost)
-    return &NewDOMUI<chromeos::LoginUI>;
-#endif
-
   if (url.spec() == chrome::kChromeUIConstrainedHTMLTestURL)
     return &NewDOMUI<ConstrainedHtmlUI>;
 
diff --git a/chrome/browser/resources/login.html b/chrome/browser/resources/login.html
index 4238a25..6056a5a 100644
--- a/chrome/browser/resources/login.html
+++ b/chrome/browser/resources/login.html
@@ -28,16 +28,14 @@
       <a id="login-incognito" onclick="callLoginIncognito();">
         Browse without signing in
       </a>
+      <a id="shutdown-system" onclick="callShutdownSystem();">
+        Shutdown System
+      </a>
     </div>
   </div>
 </body>
 
 <script>
-function callLoginIncognito() {
-  loginStarted();
-  chrome.send('LaunchIncognito', []);
-}
-
 function callLogin() {
   var user = document.getElementById('user-text').value;
   var pass = document.getElementById('pass-text').value;
@@ -56,8 +54,19 @@ function loginFinished(result) {
 function setLock(on) {
   document.getElementById('login-button').disabled = on;
   document.getElementById('login-incognito').disabled = on;
+  document.getElementById('shutdown-system').disabled = on;
   document.getElementById('user-text').disabled = on;
   document.getElementById('pass-text').disabled = on;
 }
+
+function callLoginIncognito() {
+  loginStarted();
+  chrome.send('LaunchIncognito', []);
+}
+
+function callShutdownSystem() {
+  chrome.send('ShutdownSystem', []);
+}
+
 </script>
 </html>