www.aleph1.co.uk Git - yaffs-website/blob - web/core/modules/contextual/js/toolbar/models/StateModel.js

   1 /**
   2 * DO NOT EDIT THIS FILE.
   3 * See the following change record for more information,
   4 * https://www.drupal.org/node/2815083
   5 * @preserve
   6 **/
   7
   8 (function (Drupal, Backbone) {
   9   Drupal.contextualToolbar.StateModel = Backbone.Model.extend({
  10     defaults: {
  11       isViewing: true,
  12
  13       isVisible: false,
  14
  15       contextualCount: 0,
  16
  17       tabbingContext: null
  18     },
  19
  20     initialize: function initialize(attrs, options) {
  21       this.listenTo(options.contextualCollection, 'reset remove add', this.countContextualLinks);
  22       this.listenTo(options.contextualCollection, 'add', this.lockNewContextualLinks);
  23
  24       this.listenTo(this, 'change:contextualCount', this.updateVisibility);
  25
  26       this.listenTo(this, 'change:isViewing', function (model, isViewing) {
  27         options.contextualCollection.each(function (contextualModel) {
  28           contextualModel.set('isLocked', !isViewing);
  29         });
  30       });
  31     },
  32     countContextualLinks: function countContextualLinks(contextualModel, contextualCollection) {
  33       this.set('contextualCount', contextualCollection.length);
  34     },
  35     lockNewContextualLinks: function lockNewContextualLinks(contextualModel, contextualCollection) {
  36       if (!this.get('isViewing')) {
  37         contextualModel.set('isLocked', true);
  38       }
  39     },
  40     updateVisibility: function updateVisibility() {
  41       this.set('isVisible', this.get('contextualCount') > 0);
  42     }
  43   });
  44 })(Drupal, Backbone);