ecomp-portal-FE/client/bower_components/jqTree/lib/mouse.widget.js

   1
   2 /*
   3 This widget does the same a the mouse widget in jqueryui.
   4  */
   5 var $, MouseWidget, SimpleWidget,
   6   extend = function(child, parent) { for (var key in parent) { if (hasProp.call(parent, key)) child[key] = parent[key]; } function ctor() { this.constructor = child; } ctor.prototype = parent.prototype; child.prototype = new ctor(); child.__super__ = parent.prototype; return child; },
   7   hasProp = {}.hasOwnProperty;
   8
   9 SimpleWidget = require('./simple.widget');
  10
  11 $ = jQuery;
  12
  13 MouseWidget = (function(superClass) {
  14   extend(MouseWidget, superClass);
  15
  16   function MouseWidget() {
  17     return MouseWidget.__super__.constructor.apply(this, arguments);
  18   }
  19
  20   MouseWidget.is_mouse_handled = false;
  21
  22   MouseWidget.prototype._init = function() {
  23     this.$el.bind('mousedown.mousewidget', $.proxy(this._mouseDown, this));
  24     this.$el.bind('touchstart.mousewidget', $.proxy(this._touchStart, this));
  25     this.is_mouse_started = false;
  26     this.mouse_delay = 0;
  27     this._mouse_delay_timer = null;
  28     this._is_mouse_delay_met = true;
  29     return this.mouse_down_info = null;
  30   };
  31
  32   MouseWidget.prototype._deinit = function() {
  33     var $document;
  34     this.$el.unbind('mousedown.mousewidget');
  35     this.$el.unbind('touchstart.mousewidget');
  36     $document = $(document);
  37     $document.unbind('mousemove.mousewidget');
  38     return $document.unbind('mouseup.mousewidget');
  39   };
  40
  41   MouseWidget.prototype._mouseDown = function(e) {
  42     var result;
  43     if (e.which !== 1) {
  44       return;
  45     }
  46     result = this._handleMouseDown(e, this._getPositionInfo(e));
  47     if (result) {
  48       e.preventDefault();
  49     }
  50     return result;
  51   };
  52
  53   MouseWidget.prototype._handleMouseDown = function(e, position_info) {
  54     if (MouseWidget.is_mouse_handled) {
  55       return;
  56     }
  57     if (this.is_mouse_started) {
  58       this._handleMouseUp(position_info);
  59     }
  60     this.mouse_down_info = position_info;
  61     if (!this._mouseCapture(position_info)) {
  62       return;
  63     }
  64     this._handleStartMouse();
  65     this.is_mouse_handled = true;
  66     return true;
  67   };
  68
  69   MouseWidget.prototype._handleStartMouse = function() {
  70     var $document;
  71     $document = $(document);
  72     $document.bind('mousemove.mousewidget', $.proxy(this._mouseMove, this));
  73     $document.bind('touchmove.mousewidget', $.proxy(this._touchMove, this));
  74     $document.bind('mouseup.mousewidget', $.proxy(this._mouseUp, this));
  75     $document.bind('touchend.mousewidget', $.proxy(this._touchEnd, this));
  76     if (this.mouse_delay) {
  77       return this._startMouseDelayTimer();
  78     }
  79   };
  80
  81   MouseWidget.prototype._startMouseDelayTimer = function() {
  82     if (this._mouse_delay_timer) {
  83       clearTimeout(this._mouse_delay_timer);
  84     }
  85     this._mouse_delay_timer = setTimeout((function(_this) {
  86       return function() {
  87         return _this._is_mouse_delay_met = true;
  88       };
  89     })(this), this.mouse_delay);
  90     return this._is_mouse_delay_met = false;
  91   };
  92
  93   MouseWidget.prototype._mouseMove = function(e) {
  94     return this._handleMouseMove(e, this._getPositionInfo(e));
  95   };
  96
  97   MouseWidget.prototype._handleMouseMove = function(e, position_info) {
  98     if (this.is_mouse_started) {
  99       this._mouseDrag(position_info);
 100       return e.preventDefault();
 101     }
 102     if (this.mouse_delay && !this._is_mouse_delay_met) {
 103       return true;
 104     }
 105     this.is_mouse_started = this._mouseStart(this.mouse_down_info) !== false;
 106     if (this.is_mouse_started) {
 107       this._mouseDrag(position_info);
 108     } else {
 109       this._handleMouseUp(position_info);
 110     }
 111     return !this.is_mouse_started;
 112   };
 113
 114   MouseWidget.prototype._getPositionInfo = function(e) {
 115     return {
 116       page_x: e.pageX,
 117       page_y: e.pageY,
 118       target: e.target,
 119       original_event: e
 120     };
 121   };
 122
 123   MouseWidget.prototype._mouseUp = function(e) {
 124     return this._handleMouseUp(this._getPositionInfo(e));
 125   };
 126
 127   MouseWidget.prototype._handleMouseUp = function(position_info) {
 128     var $document;
 129     $document = $(document);
 130     $document.unbind('mousemove.mousewidget');
 131     $document.unbind('touchmove.mousewidget');
 132     $document.unbind('mouseup.mousewidget');
 133     $document.unbind('touchend.mousewidget');
 134     if (this.is_mouse_started) {
 135       this.is_mouse_started = false;
 136       this._mouseStop(position_info);
 137     }
 138   };
 139
 140   MouseWidget.prototype._mouseCapture = function(position_info) {
 141     return true;
 142   };
 143
 144   MouseWidget.prototype._mouseStart = function(position_info) {
 145     return null;
 146   };
 147
 148   MouseWidget.prototype._mouseDrag = function(position_info) {
 149     return null;
 150   };
 151
 152   MouseWidget.prototype._mouseStop = function(position_info) {
 153     return null;
 154   };
 155
 156   MouseWidget.prototype.setMouseDelay = function(mouse_delay) {
 157     return this.mouse_delay = mouse_delay;
 158   };
 159
 160   MouseWidget.prototype._touchStart = function(e) {
 161     var touch;
 162     if (e.originalEvent.touches.length > 1) {
 163       return;
 164     }
 165     touch = e.originalEvent.changedTouches[0];
 166     return this._handleMouseDown(e, this._getPositionInfo(touch));
 167   };
 168
 169   MouseWidget.prototype._touchMove = function(e) {
 170     var touch;
 171     if (e.originalEvent.touches.length > 1) {
 172       return;
 173     }
 174     touch = e.originalEvent.changedTouches[0];
 175     return this._handleMouseMove(e, this._getPositionInfo(touch));
 176   };
 177
 178   MouseWidget.prototype._touchEnd = function(e) {
 179     var touch;
 180     if (e.originalEvent.touches.length > 1) {
 181       return;
 182     }
 183     touch = e.originalEvent.changedTouches[0];
 184     return this._handleMouseUp(this._getPositionInfo(touch));
 185   };
 186
 187   return MouseWidget;
 188
 189 })(SimpleWidget);
 190
 191 module.exports = MouseWidget;