[MD Bookmarks] Remove Multiple Selected Items.

chrome/browser/resources/md_bookmarks/store.js

Index: chrome/browser/resources/md_bookmarks/store.js
diff --git a/chrome/browser/resources/md_bookmarks/store.js b/chrome/browser/resources/md_bookmarks/store.js
index 79e52fe9a9f68c6763da63ec6ee004d997f5a67f..4ab4c17dcbf5caa07a854ca98c5abec048311a01 100644
--- a/chrome/browser/resources/md_bookmarks/store.js
+++ b/chrome/browser/resources/md_bookmarks/store.js
@@ -45,6 +45,9 @@ var BookmarksStore = Polymer({
 
     /** @type {Set<string>} */
     searchResultSet_: Object,
+
+    /** @type {Set<string>} */
+    selectedItemSet_: Object,
   },
 
   /** @private {Object} */
@@ -54,6 +57,7 @@ var BookmarksStore = Polymer({
   attached: function() {
     this.documentListeners_ = {
       'folder-open-changed': this.onFolderOpenChanged_.bind(this),
+      'remove-item': this.onItemRemoved_.bind(this),
       'search-term-changed': this.onSearchTermChanged_.bind(this),
       'select-item': this.onItemSelected_.bind(this),
       'selected-folder-changed': this.onSelectedFolderChanged_.bind(this),
@@ -92,6 +96,7 @@ var BookmarksStore = Polymer({
     this.rootNode = rootNode;
     this.idToNodeMap_ = {};
     this.rootNode.path = 'rootNode';
+    this.selectedItemSet_ = new Set();
     BookmarksStore.generatePaths(rootNode, 0);
     BookmarksStore.initNodes(this.rootNode, this.idToNodeMap_);
 
@@ -187,6 +192,8 @@ var BookmarksStore = Polymer({
     if (!this.displayedList)
       return;
 
+    this.selectedItemSet_.clear();
+
     for (var i = 0; i < this.displayedList.length; i++) {
       if (!this.displayedList[i].isSelectedItem)
         continue;
@@ -252,6 +259,7 @@ var BookmarksStore = Polymer({
     }
     for (var i = startIndex; i <= endIndex; i++) {
       this.set('displayedList.#' + i + '.isSelectedItem', true);
+      this.selectedItemSet_.add(this.displayedList[i]);
     }
   },
 
@@ -263,6 +271,23 @@ var BookmarksStore = Polymer({
   selectItem_: function(item) {
     this.anchorIndex_ = this.getIndexInList_(item);
     this.set('displayedList.#' + this.anchorIndex_ + '.isSelectedItem', true);
+    this.selectedItemSet_.add(this.displayedList[this.anchorIndex_]);
+  },
+
+  /**
+   * @param {BookmarkTreeNode} item
+   * @private
+   */
+  removeSingleItem_: function(item) {
+    if (item.url) {
+      chrome.bookmarks.remove(item.id, function() {
+        // TODO(jiaxi): Add toast later.
+      }.bind(this));
+    } else {
+      chrome.bookmarks.removeTree(item.id, function() {
+        // TODO(jiaxi): Add toast later.
+      }.bind(this));
+    }
   },
 
   //////////////////////////////////////////////////////////////////////////////
@@ -402,6 +427,20 @@ var BookmarksStore = Polymer({
     else
       this.selectItem_(e.detail.item);
   },
+
+  /**
+   * @param {CustomEvent} e
+   * @private
+   */
+  onItemRemoved_: function(e) {
+    var item = /** BookmarkTreeNode */ (e.detail);
+    if (this.selectedItemSet_.size == 1 || !item.isSelectedItem) {
+      this.removeSingleItem_(item);
+    } else {
+      for (let item of this.selectedItemSet_)
+        this.removeSingleItem_(item);
+    }
+  },
 });
 
 ////////////////////////////////////////////////////////////////////////////////