public/js/views/modals/filtered-select.js

   1 'use strict';
   2
   3 var Marionette = require('backbone.marionette');
   4 var Typeahead = require('../controls//typeahead');
   5 var SimpleFilteredCollection = require('gitter-realtime-client/lib/simple-filtered-collection');
   6
   7 var FilteredSelect = Marionette.ItemView.extend({
   8   events: {
   9     focus: 'onActivate',
  10     blur: 'hide',
  11     click: 'onActivate'
  12   },
  13
  14   initialize: function(options) {
  15     this.filter = options.filter;
  16     this.collection = options.collection;
  17     this.itemTemplate = options.itemTemplate;
  18     this.dropdownClass = options.dropdownClass;
  19
  20     this.filteredCollection = new SimpleFilteredCollection([], {
  21       collection: this.collection
  22     });
  23     this.refilter('', this.filteredCollection);
  24
  25     this.typeahead = new Typeahead({
  26       el: this.el,
  27       disableShowOnAdd: true,
  28       disableListenToChange: true,
  29       longDebounce: 200,
  30       shortDebounce: 50,
  31       collection: this.filteredCollection,
  32       itemTemplate: this.itemTemplate,
  33       dropdownClass: this.dropdownClass,
  34       fetch: this.refilter.bind(this),
  35       autoSelector: function(input) {
  36         return function(model) {
  37           this.filter(input, model);
  38         }.bind(this);
  39       }.bind(this)
  40     });
  41
  42     this.listenTo(this.typeahead, 'selected', this.selected);
  43     this.listenTo(this.collection, 'add remove change reset sync', this.reset);
  44   },
  45
  46   getSelected: function() {
  47     return this.selectedGroup;
  48   },
  49
  50   selected: function(item) {
  51     this.hide();
  52     this.trigger('selected', item);
  53   },
  54
  55   onDestroy: function() {
  56     this.typeahead.destroy();
  57   },
  58
  59   onActivate: function() {
  60     if (this.el.value) {
  61       this.show();
  62     }
  63   },
  64
  65   show: function() {
  66     if (this.typeahead) {
  67       this.typeahead.show();
  68     }
  69   },
  70
  71   hide: function() {
  72     if (this.typeahead) {
  73       this.typeahead.hide();
  74     }
  75   },
  76
  77   refilter: function(input, collection, success) {
  78     collection.setFilter(
  79       function(model) {
  80         return this.filter(input, model);
  81       }.bind(this)
  82     );
  83
  84     if (success) success();
  85   }
  86 });
  87
  88 module.exports = FilteredSelect;