71 lines
1.6 KiB
JavaScript
71 lines
1.6 KiB
JavaScript
|
/**
|
|||
|
|
* 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 () {
|
|||
|
|
DEPRECATED('don\'t use the Delay object, use window.timeout with a callback instead');
|
|||
|
|
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);
|
|||
|
|
}
|
|||
|
|
};
|