[MD Bookmarks] Add Select for Bookmarks.

chrome/browser/resources/md_bookmarks/item.js

Index: chrome/browser/resources/md_bookmarks/item.js
diff --git a/chrome/browser/resources/md_bookmarks/item.js b/chrome/browser/resources/md_bookmarks/item.js
index fbf620289cee192f48befad60703baa7cf24b511..d785c733a51a29c54640b0a757726d26494ff880 100644
--- a/chrome/browser/resources/md_bookmarks/item.js
+++ b/chrome/browser/resources/md_bookmarks/item.js
@@ -13,17 +13,28 @@ Polymer({
     },
 
     isFolder_: Boolean,
+
+    isSelectedItem: {
+      type: Boolean,
+      reflectToAttribute: true,
+    },
   },
 
   observers: [
     'updateFavicon_(item.url)',
   ],
 
+  listeners: {
+    'click': 'onClick_',
+    'dblclick': 'onDblClick_',
+  },
+
   /**
    * @param {Event} e
    * @private
    */
-  onMenuButtonOpenTap_: function(e) {
+  onMenuButtonOpenClick_: function(e) {
+    e.stopPropagation();
     this.fire('open-item-menu', {
       target: e.target,
       item: this.item,
@@ -35,7 +46,36 @@ Polymer({
     this.isFolder_ = !(this.item.url);
   },
 
-  /** @private */
+  /**
+   * @param {Event} e
+   * @private
+   */
+  onClick_: function(e) {
+    if (e.shiftKey) {
+      this.fire('select-item', {
+        item: this.item,
+        range: true,
+      });
+    } else {
+      this.fire('select-item', {
+        item: this.item,
+        add: e.ctrlKey,
+      });
+    }

[calamity, 2017/01/31 05:05:15]

Can this just be range: e.shiftKey, add: e.ctrlKey, without the if? This
provides a better Ctrl + Shift click behavior.

[jiaxi, 2017/02/01 03:19:25]

Done.

+  },
+
+  /**
+   * @param {Event} e
+   * @private
+   */
+  onDblClick_: function(e) {
+    /* TODO(jiaxi): Add double click later. */
+  },
+
+  /**
+   * @param {string} url
+   * @private
+   */
   updateFavicon_: function(url) {
     this.$.icon.style.backgroundImage = cr.icon.getFavicon(url);
   },