resources/jquery.ui/jquery.ui.selectable.js

   1 /*!
   2  * jQuery UI Selectable 1.8.21
   3  *
   4  * Copyright 2012, AUTHORS.txt (http://jqueryui.com/about)
   5  * Dual licensed under the MIT or GPL Version 2 licenses.
   6  * http://jquery.org/license
   7  *
   8  * http://docs.jquery.com/UI/Selectables
   9  *
  10  * Depends:
  11  *      jquery.ui.core.js
  12  *      jquery.ui.mouse.js
  13  *      jquery.ui.widget.js
  14  */
  15 (function( $, undefined ) {
  16
  17 $.widget("ui.selectable", $.ui.mouse, {
  18         options: {
  19                 appendTo: 'body',
  20                 autoRefresh: true,
  21                 distance: 0,
  22                 filter: '*',
  23                 tolerance: 'touch'
  24         },
  25         _create: function() {
  26                 var self = this;
  27
  28                 this.element.addClass("ui-selectable");
  29
  30                 this.dragged = false;
  31
  32                 // cache selectee children based on filter
  33                 var selectees;
  34                 this.refresh = function() {
  35                         selectees = $(self.options.filter, self.element[0]);
  36                         selectees.addClass("ui-selectee");
  37                         selectees.each(function() {
  38                                 var $this = $(this);
  39                                 var pos = $this.offset();
  40                                 $.data(this, "selectable-item", {
  41                                         element: this,
  42                                         $element: $this,
  43                                         left: pos.left,
  44                                         top: pos.top,
  45                                         right: pos.left + $this.outerWidth(),
  46                                         bottom: pos.top + $this.outerHeight(),
  47                                         startselected: false,
  48                                         selected: $this.hasClass('ui-selected'),
  49                                         selecting: $this.hasClass('ui-selecting'),
  50                                         unselecting: $this.hasClass('ui-unselecting')
  51                                 });
  52                         });
  53                 };
  54                 this.refresh();
  55
  56                 this.selectees = selectees.addClass("ui-selectee");
  57
  58                 this._mouseInit();
  59
  60                 this.helper = $("<div class='ui-selectable-helper'></div>");
  61         },
  62
  63         destroy: function() {
  64                 this.selectees
  65                         .removeClass("ui-selectee")
  66                         .removeData("selectable-item");
  67                 this.element
  68                         .removeClass("ui-selectable ui-selectable-disabled")
  69                         .removeData("selectable")
  70                         .unbind(".selectable");
  71                 this._mouseDestroy();
  72
  73                 return this;
  74         },
  75
  76         _mouseStart: function(event) {
  77                 var self = this;
  78
  79                 this.opos = [event.pageX, event.pageY];
  80
  81                 if (this.options.disabled)
  82                         return;
  83
  84                 var options = this.options;
  85
  86                 this.selectees = $(options.filter, this.element[0]);
  87
  88                 this._trigger("start", event);
  89
  90                 $(options.appendTo).append(this.helper);
  91                 // position helper (lasso)
  92                 this.helper.css({
  93                         "left": event.clientX,
  94                         "top": event.clientY,
  95                         "width": 0,
  96                         "height": 0
  97                 });
  98
  99                 if (options.autoRefresh) {
 100                         this.refresh();
 101                 }
 102
 103                 this.selectees.filter('.ui-selected').each(function() {
 104                         var selectee = $.data(this, "selectable-item");
 105                         selectee.startselected = true;
 106                         if (!event.metaKey && !event.ctrlKey) {
 107                                 selectee.$element.removeClass('ui-selected');
 108                                 selectee.selected = false;
 109                                 selectee.$element.addClass('ui-unselecting');
 110                                 selectee.unselecting = true;
 111                                 // selectable UNSELECTING callback
 112                                 self._trigger("unselecting", event, {
 113                                         unselecting: selectee.element
 114                                 });
 115                         }
 116                 });
 117
 118                 $(event.target).parents().andSelf().each(function() {
 119                         var selectee = $.data(this, "selectable-item");
 120                         if (selectee) {
 121                                 var doSelect = (!event.metaKey && !event.ctrlKey) || !selectee.$element.hasClass('ui-selected');
 122                                 selectee.$element
 123                                         .removeClass(doSelect ? "ui-unselecting" : "ui-selected")
 124                                         .addClass(doSelect ? "ui-selecting" : "ui-unselecting");
 125                                 selectee.unselecting = !doSelect;
 126                                 selectee.selecting = doSelect;
 127                                 selectee.selected = doSelect;
 128                                 // selectable (UN)SELECTING callback
 129                                 if (doSelect) {
 130                                         self._trigger("selecting", event, {
 131                                                 selecting: selectee.element
 132                                         });
 133                                 } else {
 134                                         self._trigger("unselecting", event, {
 135                                                 unselecting: selectee.element
 136                                         });
 137                                 }
 138                                 return false;
 139                         }
 140                 });
 141
 142         },
 143
 144         _mouseDrag: function(event) {
 145                 var self = this;
 146                 this.dragged = true;
 147
 148                 if (this.options.disabled)
 149                         return;
 150
 151                 var options = this.options;
 152
 153                 var x1 = this.opos[0], y1 = this.opos[1], x2 = event.pageX, y2 = event.pageY;
 154                 if (x1 > x2) { var tmp = x2; x2 = x1; x1 = tmp; }
 155                 if (y1 > y2) { var tmp = y2; y2 = y1; y1 = tmp; }
 156                 this.helper.css({left: x1, top: y1, width: x2-x1, height: y2-y1});
 157
 158                 this.selectees.each(function() {
 159                         var selectee = $.data(this, "selectable-item");
 160                         //prevent helper from being selected if appendTo: selectable
 161                         if (!selectee || selectee.element == self.element[0])
 162                                 return;
 163                         var hit = false;
 164                         if (options.tolerance == 'touch') {
 165                                 hit = ( !(selectee.left > x2 || selectee.right < x1 || selectee.top > y2 || selectee.bottom < y1) );
 166                         } else if (options.tolerance == 'fit') {
 167                                 hit = (selectee.left > x1 && selectee.right < x2 && selectee.top > y1 && selectee.bottom < y2);
 168                         }
 169
 170                         if (hit) {
 171                                 // SELECT
 172                                 if (selectee.selected) {
 173                                         selectee.$element.removeClass('ui-selected');
 174                                         selectee.selected = false;
 175                                 }
 176                                 if (selectee.unselecting) {
 177                                         selectee.$element.removeClass('ui-unselecting');
 178                                         selectee.unselecting = false;
 179                                 }
 180                                 if (!selectee.selecting) {
 181                                         selectee.$element.addClass('ui-selecting');
 182                                         selectee.selecting = true;
 183                                         // selectable SELECTING callback
 184                                         self._trigger("selecting", event, {
 185                                                 selecting: selectee.element
 186                                         });
 187                                 }
 188                         } else {
 189                                 // UNSELECT
 190                                 if (selectee.selecting) {
 191                                         if ((event.metaKey || event.ctrlKey) && selectee.startselected) {
 192                                                 selectee.$element.removeClass('ui-selecting');
 193                                                 selectee.selecting = false;
 194                                                 selectee.$element.addClass('ui-selected');
 195                                                 selectee.selected = true;
 196                                         } else {
 197                                                 selectee.$element.removeClass('ui-selecting');
 198                                                 selectee.selecting = false;
 199                                                 if (selectee.startselected) {
 200                                                         selectee.$element.addClass('ui-unselecting');
 201                                                         selectee.unselecting = true;
 202                                                 }
 203                                                 // selectable UNSELECTING callback
 204                                                 self._trigger("unselecting", event, {
 205                                                         unselecting: selectee.element
 206                                                 });
 207                                         }
 208                                 }
 209                                 if (selectee.selected) {
 210                                         if (!event.metaKey && !event.ctrlKey && !selectee.startselected) {
 211                                                 selectee.$element.removeClass('ui-selected');
 212                                                 selectee.selected = false;
 213
 214                                                 selectee.$element.addClass('ui-unselecting');
 215                                                 selectee.unselecting = true;
 216                                                 // selectable UNSELECTING callback
 217                                                 self._trigger("unselecting", event, {
 218                                                         unselecting: selectee.element
 219                                                 });
 220                                         }
 221                                 }
 222                         }
 223                 });
 224
 225                 return false;
 226         },
 227
 228         _mouseStop: function(event) {
 229                 var self = this;
 230
 231                 this.dragged = false;
 232
 233                 var options = this.options;
 234
 235                 $('.ui-unselecting', this.element[0]).each(function() {
 236                         var selectee = $.data(this, "selectable-item");
 237                         selectee.$element.removeClass('ui-unselecting');
 238                         selectee.unselecting = false;
 239                         selectee.startselected = false;
 240                         self._trigger("unselected", event, {
 241                                 unselected: selectee.element
 242                         });
 243                 });
 244                 $('.ui-selecting', this.element[0]).each(function() {
 245                         var selectee = $.data(this, "selectable-item");
 246                         selectee.$element.removeClass('ui-selecting').addClass('ui-selected');
 247                         selectee.selecting = false;
 248                         selectee.selected = true;
 249                         selectee.startselected = true;
 250                         self._trigger("selected", event, {
 251                                 selected: selectee.element
 252                         });
 253                 });
 254                 this._trigger("stop", event);
 255
 256                 this.helper.remove();
 257
 258                 return false;
 259         }
 260
 261 });
 262
 263 $.extend($.ui.selectable, {
 264         version: "1.8.21"
 265 });
 266
 267 })(jQuery);