Created
September 15, 2011 12:41
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location.hashの変更イベントを受け取るためのもの。
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/*! | |
* HashChange.js | |
* @version 1.0 | |
* @author mach3 | |
* @example | |
* var foo = new HashChange(); | |
* foo.config({ onInit:myInitFunc, onChange:myChangeFunc, interval:100 }); | |
* foo.start(); // When start to observe. | |
* foo.stop(); // When stop to observe. | |
*/ | |
/** | |
* Creates a new HashChange. | |
* @constructor | |
* @class observe changes of locatin.hash. | |
* @param {Object} options Configuration options. | |
*/ | |
var HashChange = function( options ){ | |
var my, vars, methods ; | |
my = this; | |
vars = { | |
onChange : null, | |
onInit : null, | |
interval : 100, | |
timer : null, | |
hash : null | |
}; | |
methods = { | |
isFunction : function( target ){ | |
return typeof( target ) === "function" ; | |
} | |
}; | |
/** | |
* Configure options. | |
* @param {Object} options Configuration options. | |
*/ | |
my.config = function( options ){ | |
for( i in options ){ | |
if( !vars.hasOwnProperty( i ) ){ continue; } | |
vars[i] = options[i]; | |
} | |
}; | |
/** | |
* Start to observe. | |
*/ | |
my.start = function(){ | |
my.run(); | |
}; | |
/** | |
* Check whether location.hash has been changed or not, | |
* call onInit/onChange function if set, | |
* and call itself by timeout again. | |
*/ | |
my.run = function(){ | |
var h = location.hash; | |
if( vars.hash === null && methods.isFunction( vars.onInit ) ){ | |
vars.onInit( h ); | |
} else if ( vars.hash !== h && methods.isFunction( vars.onChange ) ){ | |
vars.onChange( h ); | |
} | |
vars.hash = location.hash; | |
vars.timer = setTimeout( my.run, vars.interval ); | |
}; | |
/** | |
* Stop to observe. | |
*/ | |
my.stop = function(){ | |
clearTimeout( vars.timer ); | |
}; | |
my.config( options ); | |
}; |
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