src/editor/plugins/core/edumed/choice/list.js

   1 define(function(require) {
   2
   3 'use strict';
   4 var $ = require('libs/jquery');
   5
   6 var _ = require('libs/underscore'),
   7     Backbone = require('libs/backbone'),
   8     viewTemplate = require('libs/text!./list.html'),
   9     viewItemTemplate = require('libs/text!./listItem.html');
  10
  11
  12 var ListView = function(element, listNode, params) {
  13     this.element = element;
  14     this.listNode = listNode;
  15     this.params = params;
  16     this.dom = $(_.template(viewTemplate)());
  17     this.list = this.dom.find('ul');
  18     this.addButton = this.dom.find('button.add');
  19     this.itemViews = [];
  20
  21     this.listNode.contents()
  22         .filter(function(node) {
  23             return node.is('item.answer');
  24         })
  25         .forEach(function(node) {
  26             this.addItem(node);
  27         }.bind(this));
  28 };
  29 _.extend(ListView.prototype, Backbone.Events, {
  30     addItem: function(node) {
  31         var view = new ItemView(node, this);
  32         var idx = this.listNode.contents()
  33             .filter(function(n) { return n.is('item'); })
  34             .indexOf(node);
  35
  36         if(idx <= this.itemViews.length - 1) {
  37                 this.itemViews.splice(idx, 0, view);
  38         } else {
  39             this.itemViews.push(view);
  40         }
  41         if(idx > 0) {
  42             this.itemViews[idx-1].dom.after(view.dom);
  43         } else {
  44             this.list.prepend(view.dom);
  45         }
  46         if(this.params.onItemViewAdded) {
  47             this.params.onItemViewAdded(view);
  48         }
  49     },
  50     removeItem: function(node) {
  51         this.itemViews.some(function(view, idx) {
  52             if(view.node.sameNode(node)) {
  53                 view.remove();
  54                 this.itemViews.splice(idx, 1);
  55                 return true;
  56             }
  57         }.bind(this));
  58     },
  59     getItemView: function(node) {
  60         var toret;
  61         this.itemViews.some(function(view) {
  62             if(view.node.sameNode(node)) {
  63                 toret = view;
  64                 return true;
  65             }
  66         }.bind(this));
  67         return toret;
  68     }
  69 });
  70
  71 var ItemView = function(node, exerciseView) {
  72     this.node = node;
  73     this.exerciseView = exerciseView;
  74     this.dom = $(_.template(viewItemTemplate)());
  75
  76     this.container = exerciseView.element.createContainer(node.contents(), {
  77         manages: function(node, originaParent) {
  78             return this.node.sameNode(node.parent() || originaParent);
  79         }.bind(this),
  80         dom: this.dom.find('.content')
  81     });
  82 };
  83
  84 _.extend(ItemView.prototype, Backbone.Events, {
  85     remove: function() {
  86         this.container.remove();
  87         this.dom.remove();
  88     },
  89     addPrefixView: function(view) {
  90         this.dom.find('.prefix').append(view.dom);
  91         this.prefixView = view;
  92     }
  93 });
  94
  95 return ListView;
  96
  97 });