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Copy pathdelay.js
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69 lines (60 loc) · 1.51 KB
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/**
* Manage delayed and timed actions
*
* @license GPL2 (http://www.gnu.org/licenses/gpl.html)
* @author Adrian Lang <lang@cosmocode.de>
*/
/**
* Provide a global callback for window.setTimeout
*
* To get a timeout for non-global functions, just call
* delay.add(func, timeout).
*/
var timer = {
_cur_id: 0,
_handlers: {},
execDispatch: function (id) {
timer._handlers[id]();
},
add: function (func, timeout) {
var id = ++timer._cur_id;
timer._handlers[id] = func;
return window.setTimeout('timer.execDispatch(' + id + ')', timeout);
}
};
/**
* Provide a delayed start
*
* To call a function with a delay, just create a new Delay(func, timeout) and
* call that object’s method “start”.
*/
function Delay (func, timeout) {
this.func = func;
if (timeout) {
this.timeout = timeout;
}
}
Delay.prototype = {
func: null,
timeout: 500,
delTimer: function () {
if (this.timer !== null) {
window.clearTimeout(this.timer);
this.timer = null;
}
},
start: function () {
this.delTimer();
var _this = this;
this.timer = timer.add(function () { _this.exec.call(_this); },
this.timeout);
this._data = {
_this: arguments[0],
_params: Array.prototype.slice.call(arguments, 2)
};
},
exec: function () {
this.delTimer();
this.func.call(this._data._this, this._data._params);
}
};