First try at a user management screen for the desktop

chrome/browser/ui/webui/signin/user_chooser_screen_handler.cc

Index: chrome/browser/ui/webui/signin/user_chooser_screen_handler.cc
diff --git a/chrome/browser/ui/webui/signin/user_chooser_screen_handler.cc b/chrome/browser/ui/webui/signin/user_chooser_screen_handler.cc
new file mode 100644
index 0000000000000000000000000000000000000000..0485663c25e78ad2ec77be49c3bb7caef7349411
--- /dev/null
+++ b/chrome/browser/ui/webui/signin/user_chooser_screen_handler.cc
@@ -0,0 +1,244 @@
+// Copyright (c) 2013 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/ui/webui/signin/user_chooser_screen_handler.h"
+
+#include "base/bind.h"
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/profiles/avatar_menu_model.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_info_cache.h"
+#include "chrome/browser/profiles/profile_info_util.h"
+#include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/ui/browser_commands.h"
+#include "chrome/browser/ui/browser_finder.h"
+#include "chrome/browser/ui/singleton_tabs.h"
+#include "grit/browser_resources.h"
+#include "grit/chromium_strings.h"
+#include "grit/generated_resources.h"
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/base/l10n/l10n_util.h"
+#include "ui/gfx/image/image_util.h"
+#include "ui/webui/web_ui_util.h"
+
+namespace {
+// User dictionary keys.
+const char kKeyUsername[] = "username";
+const char kKeyDisplayName[]= "displayName";
+const char kKeyEmailAddress[] = "emailAddress";
+const char kKeyPublicAccount[] = "publicAccount";
+const char kKeyLocallyManagedUser[] = "locallyManagedUser";
+const char kKeySignedIn[] = "signedIn";
+const char kKeyCanRemove[] = "canRemove";
+const char kKeyIsOwner[] = "isOwner";
+const char kKeyIsDesktop[] = "isDesktopScreen";
+const char kKeyAvatarUrl[] = "userImage";
+const char kUserOAuthTokenStatus[] = "oauthTokenStatus";
+const char kGAIAPictureFileNameKey[] = "gaia_picture_file_name";
+
+// Max number of users to show.
+const size_t kMaxUsers = 18;
+
+// Type of the login screen UI that is currently presented to user.
+const char kSourceGaiaSignin[] = "gaia-signin";
+const char kSourceAccountPicker[] = "account-picker";
+
+// JS API callback names.
+const char kJsApiUserChooserInitialize[] = "userChooserInitialize";
+const char kJsApiUserChooserAddUser[] = "addUser";
+const char kJsApiUserChooserLaunchGuest[] = "launchGuest";
+const char kJsApiUserChooserLaunchUser[] = "launchUser";
+const char kJsApiUserChooserRemoveUser[] = "removeUser";
+} // namespace
+
+UserChooserScreenHandler::UserChooserScreenHandler() {
+  avatar_menu_model_.reset(new AvatarMenuModel(
+      &g_browser_process->profile_manager()->GetProfileInfoCache(),
+      NULL, NULL));
+}
+
+UserChooserScreenHandler::~UserChooserScreenHandler() {
+}
+
+void UserChooserScreenHandler::HandleInitialize(const base::ListValue* args) {
+  SendUserList();
+  web_ui()->CallJavascriptFunction("cr.ui.Oobe.showUserChooserScreen");
+}
+
+void UserChooserScreenHandler::HandleAddUser(const base::ListValue* args) {
+  chrome::ShowSingletonTab(chrome::FindBrowserWithWebContents(
+      web_ui()->GetWebContents()),
+      GURL("chrome://settings/createProfile"));
+}
+
+void UserChooserScreenHandler::HandleRemoveUser(const base::ListValue* args) {
+  chrome::ShowSingletonTab(chrome::FindBrowserWithWebContents(

[Roger Tawa OOO till Jul 10th, 2013/06/05 18:53:56]

Add a TODO here for what the real behaviour should be.

[noms, 2013/06/06 19:01:36]

Done.

+      web_ui()->GetWebContents()),
+      GURL("chrome://settings/search#Users"));
+}
+
+void UserChooserScreenHandler::HandleLaunchGuest(const base::ListValue* args) {
+  chrome::NewIncognitoWindow(chrome::FindBrowserWithWebContents(

[Roger Tawa OOO till Jul 10th, 2013/06/05 18:53:56]

Add a TODO here for what the real behaviour should be.

[noms, 2013/06/06 19:01:36]

Done.

+      web_ui()->GetWebContents()));
+}
+
+void UserChooserScreenHandler::HandleLaunchUser(const base::ListValue* args) {
+  string16 emailAddress;
+  string16 displayName;
+
+  if (!args->GetString(0, &emailAddress) ||
+      !args->GetString(1, &displayName)) {
+    NOTREACHED();
+    return;
+  }
+
+  ProfileInfoCache& info_cache =
+      g_browser_process->profile_manager()->GetProfileInfoCache();
+
+  for (size_t i = 0; i < info_cache.GetNumberOfProfiles(); ++i) {
+    if (info_cache.GetUserNameOfProfileAtIndex(i) == emailAddress &&
+        info_cache.GetNameOfProfileAtIndex(i) == displayName) {
+      avatar_menu_model_->SwitchToProfile(i, true);

[Roger Tawa OOO till Jul 10th, 2013/06/05 18:53:56]

This seems to be the only use of the menu model.  Seems a little overkill. 
Maybe factor out the core of SwitchToProfile() into a standalone function that
can be called from here and from AvatarMenuModel::SwitchToProfile().

[noms, 2013/06/06 19:01:36]

Done.

+      break;
+    }
+  }
+}
+
+void UserChooserScreenHandler::RegisterMessages() {
+  web_ui()->RegisterMessageCallback(kJsApiUserChooserInitialize,
+      base::Bind(&UserChooserScreenHandler::HandleInitialize,
+                 base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(kJsApiUserChooserAddUser,
+      base::Bind(&UserChooserScreenHandler::HandleAddUser,
+                 base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(kJsApiUserChooserLaunchGuest,
+      base::Bind(&UserChooserScreenHandler::HandleLaunchGuest,
+                 base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(kJsApiUserChooserLaunchUser,
+      base::Bind(&UserChooserScreenHandler::HandleLaunchUser,
+                 base::Unretained(this)));
+  web_ui()->RegisterMessageCallback(kJsApiUserChooserRemoveUser,
+      base::Bind(&UserChooserScreenHandler::HandleRemoveUser,
+                 base::Unretained(this)));
+}
+
+void UserChooserScreenHandler::GetLocalizedValues(
+    base::DictionaryValue* localized_strings) {
+
+  // For Header Bar.
+  localized_strings->SetString("signedIn",
+      l10n_util::GetStringUTF16(IDS_SCREEN_LOCK_ACTIVE_USER));
+  localized_strings->SetString("signinButton",
+      l10n_util::GetStringUTF16(IDS_LOGIN_BUTTON));
+  localized_strings->SetString("addUser",
+      l10n_util::GetStringUTF16(IDS_ADD_USER_BUTTON));
+  localized_strings->SetString("cancel", l10n_util::GetStringUTF16(IDS_CANCEL));
+  localized_strings->SetString("browseAsGuest",
+      l10n_util::GetStringUTF16(IDS_GO_INCOGNITO_BUTTON));
+  localized_strings->SetString("createAccount",
+      l10n_util::GetStringUTF16(IDS_CREATE_ACCOUNT_HTML));
+  localized_strings->SetString("guestSignin",
+      l10n_util::GetStringUTF16(IDS_BROWSE_WITHOUT_SIGNING_IN_HTML));
+  localized_strings->SetString("shutDown",
+      l10n_util::GetStringUTF16(IDS_SHUTDOWN_BUTTON));
+  localized_strings->SetString("showApps",
+      l10n_util::GetStringUTF16(IDS_KIOSK_APPS_BUTTON));
+  localized_strings->SetString("signOutUser",
+      l10n_util::GetStringUTF16(IDS_SCREEN_LOCK_SIGN_OUT));
+  localized_strings->SetString("bootIntoWallpaper", "off");
+  localized_strings->SetBoolean("enableAppMode", false);
+
+  // For AccountPickerScreen.
+  localized_strings->SetString("screenType", "login-add-user");
+  localized_strings->SetString("highlightStrength", "normal");
+  localized_strings->SetString("title", "User Chooser");
+  localized_strings->SetString("publicAccountReminder",
+      l10n_util::GetStringUTF16(IDS_LOGIN_PUBLIC_ACCOUNT_SIGNOUT_REMINDER));
+  localized_strings->SetString("publicAccountEnter",
+      l10n_util::GetStringUTF16(IDS_LOGIN_PUBLIC_ACCOUNT_ENTER));
+  localized_strings->SetString("publicAccountEnterAccessibleName",
+      l10n_util::GetStringUTF16(
+          IDS_LOGIN_PUBLIC_ACCOUNT_ENTER_ACCESSIBLE_NAME));
+  localized_strings->SetString("lockAnimationsType", "new");
+  localized_strings->SetString("passwordHint",
+      l10n_util::GetStringUTF16(IDS_LOGIN_POD_EMPTY_PASSWORD_TEXT));
+  localized_strings->SetString("podMenuButtonAccessibleName",
+      l10n_util::GetStringUTF16(IDS_LOGIN_POD_MENU_BUTTON_ACCESSIBLE_NAME));
+  localized_strings->SetString("podMenuRemoveItemAccessibleName",
+      l10n_util::GetStringUTF16(
+          IDS_LOGIN_POD_MENU_REMOVE_ITEM_ACCESSIBLE_NAME));
+  localized_strings->SetString("ownerUserPattern",
+      l10n_util::GetStringUTF16(IDS_LOGIN_POD_OWNER_USER));
+  localized_strings->SetString("removeUser",
+      l10n_util::GetStringUTF16(IDS_LOGIN_POD_REMOVE_USER));
+  localized_strings->SetString("passwordFieldAccessibleName",
+      l10n_util::GetStringUTF16(IDS_LOGIN_POD_PASSWORD_FIELD_ACCESSIBLE_NAME));
+  localized_strings->SetString("publicAccountInfoFormat",
+      l10n_util::GetStringUTF16(IDS_LOGIN_PUBLIC_ACCOUNT_INFO_FORMAT));
+
+  // For GaiaSigninScreen.
+  localized_strings->SetString("signinScreenTitle",
+      l10n_util::GetStringUTF16(IDS_SIGNIN_SCREEN_TITLE));
+  localized_strings->SetString("createLocallyManagedUser",
+      l10n_util::GetStringUTF16(IDS_CREATE_LOCALLY_MANAGED_USER_HTML));
+  localized_strings->SetString("createManagedUserFeatureName",
+      l10n_util::GetStringUTF16(IDS_CREATE_LOCALLY_MANAGED_USER_FEATURE_NAME));
+  localized_strings->SetString("createManagedUserNoManagerText",
+      l10n_util::GetStringUTF16(
+          IDS_CREATE_LOCALLY_MANAGED_USER_NO_MANAGER_TEXT));
+  localized_strings->SetString("learnMore",
+      l10n_util::GetStringUTF16(IDS_LEARN_MORE));
+}
+
+void UserChooserScreenHandler::SendUserList() {
+  ListValue users_list;
+  base::FilePath current_profile_path =
+      web_ui()->GetWebContents()->GetBrowserContext()->GetPath();
+  const ProfileInfoCache& info_cache =
+      g_browser_process->profile_manager()->GetProfileInfoCache();
+
+  for (size_t i = 0; i < info_cache.GetNumberOfProfiles(); ++i) {
+    DictionaryValue* profile_value = new DictionaryValue();
+
+    base::FilePath profile_path = info_cache.GetPathOfProfileAtIndex(i);
+    bool is_active_user = (profile_path == current_profile_path);
+    bool needs_signin = info_cache.ProfileIsSigninRequiredAtIndex(i);
+
+    profile_value->SetString(
+        kKeyUsername, info_cache.GetUserNameOfProfileAtIndex(i));
+    profile_value->SetString(
+        kKeyEmailAddress, info_cache.GetUserNameOfProfileAtIndex(i));
+    profile_value->SetString(
+        kKeyDisplayName, info_cache.GetNameOfProfileAtIndex(i));
+    profile_value->SetBoolean(kKeyPublicAccount, false);
+    profile_value->SetBoolean(kKeyLocallyManagedUser, false);
+    profile_value->SetBoolean(kKeySignedIn, is_active_user);
+
+    /*var OAuthTokenStatus = {
+    UNKNOWN: 0, INVALID_OLD: 1, VALID_OLD: 2, INVALID_NEW: 3, VALID_NEW: 4
+    };*/

[Roger Tawa OOO till Jul 10th, 2013/06/05 18:53:56]

I guess this commented out code is a reference to some javascript code.  Maybe
put the path of the file where the constants are defined?

Why 2 if |needs_signin| and 0 otherwise?

[noms, 2013/06/06 19:01:36]

Done.

+    profile_value->SetInteger(kUserOAuthTokenStatus, needs_signin ? 2 : 0);
+    profile_value->SetBoolean(kKeySignedIn, is_active_user);

[Roger Tawa OOO till Jul 10th, 2013/06/05 18:53:56]

Already set at line 216.

[noms, 2013/06/06 19:01:36]

Done.

+    profile_value->SetBoolean(kKeyIsOwner, false);
+    profile_value->SetBoolean(kKeyCanRemove, true);
+    profile_value->SetBoolean(kKeyIsDesktop, true);
+
+    bool is_gaia_picture =
+        info_cache.IsUsingGAIAPictureOfProfileAtIndex(i) &&
+        info_cache.GetGAIAPictureOfProfileAtIndex(i);
+
+    gfx::Image icon = profiles::GetSizedAvatarIconWithBorder(
+        info_cache.GetAvatarIconOfProfileAtIndex(i), is_gaia_picture, 160, 160);
+    profile_value->SetString(kKeyAvatarUrl,
+        webui::GetBitmapDataUrl(icon.AsBitmap()));
+
+    if (is_active_user)
+      users_list.Insert(0, profile_value);
+    else
+      users_list.Append(profile_value);
+  }
+
+  web_ui()->CallJavascriptFunction("login.AccountPickerScreen.loadUsers",
+    users_list, base::FundamentalValue(false), base::FundamentalValue(true));
+}