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1 //>>excludeStart("exclude", pragmas.exclude);
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2 define([ "shoestring", "events/bind", "events/unbind" ], function(){
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3 //>>excludeEnd("exclude");
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4
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5 /**
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6 * Bind a callback to an event for the currrent set of elements, unbind after one occurence.
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7 *
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8 * @param {string} event The event(s) to watch for.
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9 * @param {function} callback Callback to invoke on the event.
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10 * @return shoestring
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11 * @this shoestring
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12 */
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13 shoestring.fn.one = function( event, callback ){
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14 var evts = event.split( " " );
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15
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16 return this.each(function(){
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17 var thisevt, cbs = {}, $t = shoestring( this );
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18
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19 for( var i = 0, il = evts.length; i < il; i++ ){
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20 thisevt = evts[ i ];
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21
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22 cbs[ thisevt ] = function( e ){
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23 var $t = shoestring( this );
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24
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25 for( var j in cbs ) {
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26 $t.unbind( j, cbs[ j ] );
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27 }
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28
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29 return callback.apply( this, [ e ].concat( e._args ) );
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30 };
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31
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32 $t.bind( thisevt, cbs[ thisevt ] );
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33 }
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34 });
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35 };
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36
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37 //>>excludeStart("exclude", pragmas.exclude);
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38 });
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39 //>>excludeEnd("exclude");
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