src/third_party/polymer/components-chromium/core-menu/core-submenu-extracted.js

   1
   2
   3   Polymer('core-submenu', {
   4
   5     publish: {
   6       active: {value: false, reflect: true}
   7     },
   8
   9     opened: false,
  10
  11     get items() {
  12       return this.$.submenu.items;
  13     },
  14
  15     hasItems: function() {
  16       return !!this.items.length;
  17     },
  18
  19     unselectAllItems: function() {
  20       this.$.submenu.selected = null;
  21       this.$.submenu.clearSelection();
  22     },
  23
  24     activeChanged: function() {
  25       if (this.hasItems()) {
  26         this.opened = this.active;
  27       }
  28       if (!this.active) {
  29         this.unselectAllItems();
  30       }
  31     },
  32
  33     toggle: function() {
  34       this.opened = !this.opened;
  35     },
  36
  37     activate: function() {
  38       if (this.hasItems() && this.active) {
  39         this.toggle();
  40         this.unselectAllItems();
  41       }
  42     }
  43
  44   });
  45