platforma/static/js/views/view.js

   1 /*globals Editor render_template*/
   2 var View = Editor.Object.extend({
   3     _className: 'View',
   4     element: null,
   5     model: null,
   6     template: null,
   7     overlayClass: 'view-overlay',
   8     overlay: null,
   9
  10     init: function(element, model, template)
  11     {
  12         console.log("init for view");
  13         this.element = $(element);
  14         this.model = model;
  15         this.template = template || this.template;
  16
  17         if (this.template) this.render();
  18
  19         this._resizeHandler = this.resized.bind(this);
  20         $(window).bind('resize', this._resizeHandler);
  21         $(this.element).bind('resize', this._resizeHandler);
  22     },
  23
  24     render: function(template) {
  25         console.log('rendering:', this._className);
  26         this.element.html(render_template(template || this.template, this));
  27     },
  28
  29     frozen: function() {
  30         return !!this.overlay;
  31     },
  32
  33     freeze: function(message) {
  34         if (this.frozen()) {
  35             this.unfreeze();
  36         }
  37         this.overlay = this.overlay || $('<div><div>' + message + '</div></div>');
  38
  39         this.overlay.addClass(this.overlayClass)
  40         .css({
  41
  42         }).attr('unselectable', 'on')
  43
  44         this.overlay.appendTo(this.element);
  45
  46         var ovc = this.overlay.children('div');
  47         var padV = (this.overlay.height() - ovc.outerHeight())/2;
  48         var padH = (this.overlay.width() - ovc.outerWidth())/2;
  49
  50         this.overlay.children('div').css({
  51             top: padV, left: padH
  52         });
  53     },
  54
  55     unfreeze: function() {
  56         if (this.frozen()) {
  57             this.overlay.remove();
  58             this.overlay = null;
  59         }
  60     },
  61
  62     resized: function(event) {
  63         if(this.overlay) {
  64             var ovc = this.overlay.children('div');
  65             var padV = (this.overlay.height() - ovc.outerHeight())/2;
  66             var padH = (this.overlay.width() - ovc.outerWidth())/2;
  67
  68             this.overlay.children('div').css({
  69                 top: padV,
  70                 left: padH
  71             });
  72         }
  73     },
  74
  75     dispose: function() {
  76         console.log('disposing:', this._className);
  77         $(window).unbind('resize', this._resizeHandler);
  78         $(this.element).unbind('resize', this._resizeHandler);
  79         this.unfreeze();
  80         this.element.html('');
  81     }
  82 });