[MD Bookmarks] Add toasts.

chrome/browser/resources/md_bookmarks/command_manager.js

 // Copyright 2017 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.
 
 /**
  * @fileoverview Element which shows context menus and handles keyboard
  * shortcuts.
  */
 cr.define('bookmarks', function() {
 
@@ skipping 26 matching lines @@
     },
 
     attached: function() {
       assert(CommandManager.instance_ == null);
       CommandManager.instance_ = this;
 
       /** @private {function(!Event)} */
       this.boundOnOpenItemMenu_ = this.onOpenItemMenu_.bind(this);
       document.addEventListener('open-item-menu', this.boundOnOpenItemMenu_);
 
+      /** @private {function()} */
+      this.boundOnCommandUndo_ = function() {
+        this.handle(Command.UNDO, new Set());
+      }.bind(this);
+      document.addEventListener('command-undo', this.boundOnCommandUndo_);
+
       /** @private {function(!Event)} */
       this.boundOnKeydown_ = this.onKeydown_.bind(this);
       document.addEventListener('keydown', this.boundOnKeydown_);
 
       /** @private {Object<Command, string>} */
       this.shortcuts_ = {};
       this.shortcuts_[Command.EDIT] = cr.isMac ? 'enter' : 'f2';
       this.shortcuts_[Command.COPY] = cr.isMac ? 'meta+c' : 'ctrl+c';
       this.shortcuts_[Command.DELETE] =
           cr.isMac ? 'delete backspace' : 'delete';
       this.shortcuts_[Command.OPEN_NEW_TAB] =
           cr.isMac ? 'meta+enter' : 'ctrl+enter';
       this.shortcuts_[Command.OPEN_NEW_WINDOW] = 'shift+enter';
       this.shortcuts_[Command.OPEN] = cr.isMac ? 'meta+down' : 'enter';
       this.shortcuts_[Command.UNDO] = cr.isMac ? 'meta+z' : 'ctrl+z';
       this.shortcuts_[Command.REDO] =
           cr.isMac ? 'meta+shift+z' : 'ctrl+y ctrl+shift+z';
     },
 
     detached: function() {
       CommandManager.instance_ = null;
       document.removeEventListener('open-item-menu', this.boundOnOpenItemMenu_);
+      document.removeEventListener('command-undo', this.boundOnCommandUndo_);
       document.removeEventListener('keydown', this.boundOnKeydown_);
     },
 
     /**
      * Display the command context menu at (|x|, |y|) in window co-ordinates.
      * Commands will execute on the currently selected items.
      * @param {number} x
      * @param {number} y
      */
     openCommandMenuAtPosition: function(x, y) {
@@ skipping 89 matching lines @@
     handle: function(command, itemIds) {
       switch (command) {
         case Command.EDIT:
           var id = Array.from(itemIds)[0];
           /** @type {!BookmarksEditDialogElement} */ (this.$.editDialog.get())
               .showEditDialog(this.getState().nodes[id]);
           break;
         case Command.COPY:
           var idList = Array.from(itemIds);
           chrome.bookmarkManagerPrivate.copy(idList, function() {
-            // TODO(jiaxi): Add toast later.
+            bookmarks.ToastManager.getInstance().show(
+                loadTimeData.getString('toastUrlCopied'), false);
           });
           break;
         case Command.DELETE:
-          chrome.bookmarkManagerPrivate.removeTrees(
-              Array.from(this.minimizeDeletionSet_(itemIds)), function() {
-                // TODO(jiaxi): Add toast later.
-              });
+          var idList = Array.from(this.minimizeDeletionSet_(itemIds));
+          var labelPromise;
+          if (idList.length == 1) {
+            // TODO(calamity): fold this separate label into
+            // 'toastItemsDeleted'.
+            labelPromise = Promise.resolve(loadTimeData.getStringF(
+                'toastItemDeleted', this.getState().nodes[idList[0]].title));
+          } else {
+            labelPromise = cr.sendWithPromise(
+                'getPluralString', 'toastItemsDeleted', idList.length);
+          }
+          chrome.bookmarkManagerPrivate.removeTrees(idList, function() {
+            labelPromise.then(function(label) {
+              bookmarks.ToastManager.getInstance().show(label, true);
+            });
+          }.bind(this));
           break;
         case Command.UNDO:
           chrome.bookmarkManagerPrivate.undo();
+          bookmarks.ToastManager.getInstance().hide();
           break;
         case Command.REDO:
           chrome.bookmarkManagerPrivate.redo();
           break;
         case Command.OPEN_NEW_TAB:
         case Command.OPEN_NEW_WINDOW:
         case Command.OPEN_INCOGNITO:
           this.openUrls_(this.expandUrls_(itemIds), command);
           break;
         case Command.OPEN:
@@ skipping 222 matching lines @@
 
   /** @return {!bookmarks.CommandManager} */
   CommandManager.getInstance = function() {
     return assert(CommandManager.instance_);
   };
 
   return {
     CommandManager: CommandManager,
   };
 });