mods/photo_album/fluid/component-templates/js/jquery.ui-1.0/ui.draggable.js

   1 (function($) {\r
   2 \r
   3         //Make nodes selectable by expression\r
   4         $.extend($.expr[':'], { draggable: "(' '+a.className+' ').indexOf(' ui-draggable ')" });\r
   5 \r
   6 \r
   7         //Macros for external methods that support chaining\r
   8         var methods = "destroy,enable,disable".split(",");\r
   9         for(var i=0;i<methods.length;i++) {\r
  10                 var cur = methods[i], f;\r
  11                 eval('f = function() { var a = arguments; return this.each(function() { if(jQuery(this).is(".ui-draggable")) jQuery.data(this, "ui-draggable")["'+cur+'"](a); }); }');\r
  12                 $.fn["draggable"+cur.substr(0,1).toUpperCase()+cur.substr(1)] = f;\r
  13         };\r
  14         \r
  15         //get instance method\r
  16         $.fn.draggableInstance = function() {\r
  17                 if($(this[0]).is(".ui-draggable")) return $.data(this[0], "ui-draggable");\r
  18                 return false;\r
  19         };\r
  20 \r
  21         $.fn.draggable = function(o) {\r
  22                 return this.each(function() {\r
  23                         new $.ui.draggable(this, o);\r
  24                 });\r
  25         }\r
  26         \r
  27         $.ui.ddmanager = {\r
  28                 current: null,\r
  29                 droppables: [],\r
  30                 prepareOffsets: function(t, e) {\r
  31                         var dropTop = $.ui.ddmanager.dropTop = [];\r
  32                         var dropLeft = $.ui.ddmanager.dropLeft;\r
  33                         var m = $.ui.ddmanager.droppables;\r
  34                         for (var i = 0; i < m.length; i++) {\r
  35                                 if(m[i].item.disabled) continue;\r
  36                                 m[i].offset = $(m[i].item.element).offset();\r
  37                                 if (t && m[i].item.options.accept(t.element)) //Activate the droppable if used directly from draggables\r
  38                                         m[i].item.activate.call(m[i].item, e);\r
  39                         }\r
  40                 },\r
  41                 fire: function(oDrag, e) {\r
  42                         \r
  43                         var oDrops = $.ui.ddmanager.droppables;\r
  44                         var oOvers = $.grep(oDrops, function(oDrop) {\r
  45                                 \r
  46                                 if (!oDrop.item.disabled && $.ui.intersect(oDrag, oDrop, oDrop.item.options.tolerance))\r
  47                                         oDrop.item.drop.call(oDrop.item, e);\r
  48                         });\r
  49                         $.each(oDrops, function(i, oDrop) {\r
  50                                 if (!oDrop.item.disabled && oDrop.item.options.accept(oDrag.element)) {\r
  51                                         oDrop.out = 1; oDrop.over = 0;\r
  52                                         oDrop.item.deactivate.call(oDrop.item, e);\r
  53                                 }\r
  54                         });\r
  55                 },\r
  56                 update: function(oDrag, e) {\r
  57                         \r
  58                         if(oDrag.options.refreshPositions) $.ui.ddmanager.prepareOffsets();\r
  59                         \r
  60                         var oDrops = $.ui.ddmanager.droppables;\r
  61                         var oOvers = $.grep(oDrops, function(oDrop) {\r
  62                                 if(oDrop.item.disabled) return false; \r
  63                                 var isOver = $.ui.intersect(oDrag, oDrop, oDrop.item.options.tolerance)\r
  64                                 if (!isOver && oDrop.over == 1) {\r
  65                                         oDrop.out = 1; oDrop.over = 0;\r
  66                                         oDrop.item.out.call(oDrop.item, e);\r
  67                                 }\r
  68                                 return isOver;\r
  69                         });\r
  70                         $.each(oOvers, function(i, oOver) {\r
  71                                 if (oOver.over == 0) {\r
  72                                         oOver.out = 0; oOver.over = 1;\r
  73                                         oOver.item.over.call(oOver.item, e);\r
  74                                 }\r
  75                         });\r
  76                 }\r
  77         };\r
  78         \r
  79         $.ui.draggable = function(el, o) {\r
  80                 \r
  81                 var options = {};\r
  82                 $.extend(options, o);\r
  83                 var self = this;\r
  84                 $.extend(options, {\r
  85                         _start: function(h, p, c, t, e) {\r
  86                                 self.start.apply(t, [self, e]); // Trigger the start callback                           \r
  87                         },\r
  88                         _beforeStop: function(h, p, c, t, e) {\r
  89                                 self.stop.apply(t, [self, e]); // Trigger the start callback\r
  90                         },\r
  91                         _drag: function(h, p, c, t, e) {\r
  92                                 self.drag.apply(t, [self, e]); // Trigger the start callback\r
  93                         },\r
  94                         startCondition: function(e) {\r
  95                                 return !(e.target.className.indexOf("ui-resizable-handle") != -1 || self.disabled);     \r
  96                         }                       \r
  97                 });\r
  98                 \r
  99                 $.data(el, "ui-draggable", this);\r
 100                 \r
 101                 if (options.ghosting == true) options.helper = 'clone'; //legacy option check\r
 102                 $(el).addClass("ui-draggable");\r
 103                 this.interaction = new $.ui.mouseInteraction(el, options);\r
 104                 \r
 105         }\r
 106         \r
 107         $.extend($.ui.draggable.prototype, {\r
 108                 plugins: {},\r
 109                 currentTarget: null,\r
 110                 lastTarget: null,\r
 111                 destroy: function() {\r
 112                         $(this.interaction.element).removeClass("ui-draggable").removeClass("ui-draggable-disabled");\r
 113                         this.interaction.destroy();\r
 114                 },\r
 115                 enable: function() {\r
 116                         $(this.interaction.element).removeClass("ui-draggable-disabled");\r
 117                         this.disabled = false;\r
 118                 },\r
 119                 disable: function() {\r
 120                         $(this.interaction.element).addClass("ui-draggable-disabled");\r
 121                         this.disabled = true;\r
 122                 },\r
 123                 prepareCallbackObj: function(self) {\r
 124                         return {\r
 125                                 helper: self.helper,\r
 126                                 position: { left: self.pos[0], top: self.pos[1] },\r
 127                                 offset: self.options.cursorAt,\r
 128                                 draggable: self,\r
 129                                 options: self.options   \r
 130                         }                       \r
 131                 },\r
 132                 start: function(that, e) {\r
 133                         \r
 134                         var o = this.options;\r
 135                         $.ui.ddmanager.current = this;\r
 136                         \r
 137                         $.ui.plugin.call(that, 'start', [e, that.prepareCallbackObj(this)]);\r
 138                         $(this.element).triggerHandler("dragstart", [e, that.prepareCallbackObj(this)], o.start);\r
 139                         \r
 140                         if (this.slowMode && $.ui.droppable && !o.dropBehaviour)\r
 141                                 $.ui.ddmanager.prepareOffsets(this, e);\r
 142                         \r
 143                         return false;\r
 144                                                 \r
 145                 },\r
 146                 stop: function(that, e) {                       \r
 147                         \r
 148                         var o = this.options;\r
 149                         \r
 150                         $.ui.plugin.call(that, 'stop', [e, that.prepareCallbackObj(this)]);\r
 151                         $(this.element).triggerHandler("dragstop", [e, that.prepareCallbackObj(this)], o.stop);\r
 152 \r
 153                         if (this.slowMode && $.ui.droppable && !o.dropBehaviour) //If cursorAt is within the helper, we must use our drop manager\r
 154                                 $.ui.ddmanager.fire(this, e);\r
 155 \r
 156                         $.ui.ddmanager.current = null;\r
 157                         $.ui.ddmanager.last = this;\r
 158 \r
 159                         return false;\r
 160                         \r
 161                 },\r
 162                 drag: function(that, e) {\r
 163 \r
 164                         var o = this.options;\r
 165 \r
 166                         $.ui.ddmanager.update(this, e);\r
 167 \r
 168                         this.pos = [this.pos[0]-o.cursorAt.left, this.pos[1]-o.cursorAt.top];\r
 169 \r
 170                         $.ui.plugin.call(that, 'drag', [e, that.prepareCallbackObj(this)]);\r
 171                         var nv = $(this.element).triggerHandler("drag", [e, that.prepareCallbackObj(this)], o.drag);\r
 172 \r
 173                         var nl = (nv && nv.left) ? nv.left : this.pos[0];\r
 174                         var nt = (nv && nv.top) ? nv.top : this.pos[1];\r
 175                         \r
 176                         $(this.helper).css('left', nl+'px').css('top', nt+'px'); // Stick the helper to the cursor\r
 177                         return false;\r
 178                         \r
 179                 }\r
 180         });\r
 181 \r
 182 })($);\r