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1 //>>excludeStart("exclude", pragmas.exclude);
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2 define([ "shoestring" ], function(){
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3 //>>excludeEnd("exclude");
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4
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5 /**
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6 * Unbind a previous bound callback for an event.
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7 *
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8 * @param {string} event The event(s) the callback was bound to..
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9 * @param {function} callback Callback to unbind.
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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.unbind = function( event, callback ){
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14
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15 //>>includeStart("development", pragmas.development);
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16 if( arguments.length >= 3 || typeof callback === "string" ){
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17 shoestring.error( 'off-delegate' );
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18 }
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19 //>>includeEnd("development");
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20
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21 var evts = event ? event.split( " " ) : [];
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22
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23 return this.each(function(){
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24 if( !this.shoestringData || !this.shoestringData.events ) {
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25 return;
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26 }
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27
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28 if( !evts.length ) {
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29 unbindAll.call( this );
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30 } else {
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31 var split, evt, namespace;
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32 for( var i = 0, il = evts.length; i < il; i++ ){
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33 split = evts[ i ].split( "." ),
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34 evt = split[ 0 ],
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35 namespace = split.length > 0 ? split[ 1 ] : null;
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36
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37 if( evt ) {
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38 unbind.call( this, evt, namespace, callback );
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39 } else {
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40 unbindAll.call( this, namespace, callback );
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41 }
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42 }
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43 }
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44 });
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45 };
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46
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47 function unbind( evt, namespace, callback ) {
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48 var bound = this.shoestringData.events[ evt ];
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49 if( !(bound && bound.length) ) {
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50 return;
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51 }
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52
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53 var matched = [], j, jl;
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54 for( j = 0, jl = bound.length; j < jl; j++ ) {
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55 if( !namespace || namespace === bound[ j ].namespace ) {
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56 if( callback === undefined || callback === bound[ j ].originalCallback ) {
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57 this.removeEventListener( evt, bound[ j ].callback, false );
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58 matched.push( j );
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59 }
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60 }
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61 }
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62
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63 for( j = 0, jl = matched.length; j < jl; j++ ) {
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64 this.shoestringData.events[ evt ].splice( j, 1 );
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65 }
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66 }
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67
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68 function unbindAll( namespace, callback ) {
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69 for( var evtKey in this.shoestringData.events ) {
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70 unbind.call( this, evtKey, namespace, callback );
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71 }
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72 }
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73
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74 shoestring.fn.off = shoestring.fn.unbind;
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75 //>>excludeStart("exclude", pragmas.exclude);
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76 });
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77 //>>excludeEnd("exclude");
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