[Polymer] Roll polymer to latest version

third_party/polymer/v1_0/components-chromium/paper-menu/paper-submenu-extracted.js

 (function() {
-      Polymer({
-        is: 'paper-submenu',
 
-        properties: {
-          /**
-           * Fired when the submenu is opened.
-           *
-           * @event paper-submenu-open
-           */
+    Polymer({
 
-          /**
-           * Fired when the submenu is closed.
-           *
-           * @event paper-submenu-close
-           */
+      is: 'paper-submenu',
 
-          /**
-           * Set opened to true to show the collapse element and to false to hide it.
-           *
-           * @attribute opened
-           */
-          opened: {
-            type: Boolean,
-            value: false,
-            notify: true,
-            observer: '_openedChanged'
-          }
-        },
-
-        behaviors: [
-          Polymer.IronControlState
-        ],
-
-        get __parent() {
-          return Polymer.dom(this).parentNode;
-        },
-
-        get __trigger() {
-          return Polymer.dom(this.$.trigger).getDistributedNodes()[0];
-        },
-
-        attached: function() {
-          this.listen(this.__parent, 'iron-activate', '_onParentIronActivate');
-        },
-
-        dettached: function() {
-          this.unlisten(this.__parent, 'iron-activate', '_onParentIronActivate');
-        },
+      properties: {
+        /**
+         * Fired when the submenu is opened.
+         *
+         * @event paper-submenu-open
+         */
 
         /**
-         * Expand the submenu content.
+         * Fired when the submenu is closed.
+         *
+         * @event paper-submenu-close
          */
-        open: function() {
-          if (this.disabled)
-            return;
+
+        /**
+         * Set opened to true to show the collapse element and to false to hide it.
+         *
+         * @attribute opened
+         */
+        opened: {
+          type: Boolean,
+          value: false,
+          notify: true,
+          observer: '_openedChanged'
+        }
+      },
+
+      behaviors: [
+        Polymer.IronControlState
+      ],
+
+      listeners: {
+        'focus': '_onFocus'
+      },
+
+      get __parent() {
+        return Polymer.dom(this).parentNode;
+      },
+
+      get __trigger() {
+        return Polymer.dom(this.$.trigger).getDistributedNodes()[0];
+      },
+
+      get __content() {
+        return Polymer.dom(this.$.content).getDistributedNodes()[0];
+      },
+
+      attached: function() {
+        this.listen(this.__parent, 'iron-activate', '_onParentIronActivate');
+      },
+
+      dettached: function() {
+        this.unlisten(this.__parent, 'iron-activate', '_onParentIronActivate');
+      },
+
+      /**
+       * Expand the submenu content.
+       */
+      open: function() {
+        if (!this.disabled && !this._active) {
           this.$.collapse.show();
           this._active = true;
-          this.__trigger.classList.add('iron-selected');
-        },
+          this.__trigger && this.__trigger.classList.add('iron-selected');
+          this.__content && this.__content.focus();
+        }
+      },
 
-        /**
-         * Collapse the submenu content.
-         */
-        close: function() {
+      /**
+       * Collapse the submenu content.
+       */
+      close: function() {
+        if (this._active) {
           this.$.collapse.hide();
           this._active = false;
-          this.__trigger.classList.remove('iron-selected');
-        },
+          this.__trigger && this.__trigger.classList.remove('iron-selected');
+        }
+      },
 
-        /**
-         * A handler that is called when the trigger is tapped.
-         */
-        _onTap: function() {
-          if (this.disabled)
-            return;
-          this.$.collapse.toggle();
-        },
+      /**
+       * Toggle the submenu.
+       */
+      toggle: function() {
+        if (this._active) {
+          this.close();
+        } else {
+          this.open();
+        }
+      },
 
-        /**
-         * Toggles the submenu content when the trigger is tapped.
-         */
-        _openedChanged: function(opened, oldOpened) {
-          if (opened) {
-            this.fire('paper-submenu-open');
-          } else if (oldOpened != null) {
-            this.fire('paper-submenu-close');
-          }
-        },
+      /**
+       * A handler that is called when the trigger is tapped.
+       */
+      _onTap: function(e) {
+        if (!this.disabled) {
+          this.toggle();
+        }
+      },
 
-        /**
-         * A handler that is called when `iron-activate` is fired.
-         *
-         * @param {CustomEvent} event An `iron-activate` event.
-         */
-        _onParentIronActivate: function(event) {
-          if (Polymer.Gestures.findOriginalTarget(event) !== this.__parent) {
-            return;
-          }
+      /**
+       * Toggles the submenu content when the trigger is tapped.
+       */
+      _openedChanged: function(opened, oldOpened) {
+        if (opened) {
+          this.fire('paper-submenu-open');
+        } else if (oldOpened != null) {
+          this.fire('paper-submenu-close');
+        }
+      },
 
+      /**
+       * A handler that is called when `iron-activate` is fired.
+       *
+       * @param {CustomEvent} event An `iron-activate` event.
+       */
+      _onParentIronActivate: function(event) {
+        var parent = this.__parent;
+        if (Polymer.dom(event).localTarget === parent) {
           // The activated item can either be this submenu, in which case it
           // should be expanded, or any of the other sibling submenus, in which
           // case this submenu should be collapsed.
-          if (event.detail.item == this) {
-            if (this._active)
-              return;
-            this.open();
-          } else {
+          if (event.detail.item !== this && !parent.multi) {
             this.close();
           }
-        },
+        }
+      },
 
-        /**
-         * If the dropdown is open when disabled becomes true, close the
-         * dropdown.
-         *
-         * @param {boolean} disabled True if disabled, otherwise false.
-         */
-        _disabledChanged: function(disabled) {
-          Polymer.IronControlState._disabledChanged.apply(this, arguments);
-          if (disabled && this._active) {
-            this.close();
+      /**
+       * If the dropdown is open when disabled becomes true, close the
+       * dropdown.
+       *
+       * @param {boolean} disabled True if disabled, otherwise false.
+       */
+      _disabledChanged: function(disabled) {
+        Polymer.IronControlState._disabledChanged.apply(this, arguments);
+        if (disabled && this._active) {
+          this.close();
+        }
+      },
 
-          }
-        }
-      });
-    })();
+      /**
+       * Handler that is called when the menu receives focus.
+       *
+       * @param {FocusEvent} event A focus event.
+       */
+      _onFocus: function(event) {
+        this.__trigger && this.__trigger.focus();
+      }
+
+    });
+
+  })();