71 lines
1.6 KiB
JavaScript
71 lines
1.6 KiB
JavaScript
/**
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* Manage delayed and timed actions
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*
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* @license GPL2 (http://www.gnu.org/licenses/gpl.html)
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* @author Adrian Lang <lang@cosmocode.de>
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*/
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/**
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* Provide a global callback for window.setTimeout
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*
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* To get a timeout for non-global functions, just call
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* delay.add(func, timeout).
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*/
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var timer = {
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_cur_id: 0,
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_handlers: {},
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execDispatch: function (id) {
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timer._handlers[id]();
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},
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add: function (func, timeout) {
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var id = ++timer._cur_id;
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timer._handlers[id] = func;
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return window.setTimeout('timer.execDispatch(' + id + ')', timeout);
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}
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};
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/**
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* Provide a delayed start
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*
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* To call a function with a delay, just create a new Delay(func, timeout) and
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* call that object’s method “start”.
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*/
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function Delay (func, timeout) {
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this.func = func;
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if (timeout) {
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this.timeout = timeout;
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}
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}
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Delay.prototype = {
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func: null,
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timeout: 500,
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delTimer: function () {
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if (this.timer !== null) {
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window.clearTimeout(this.timer);
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this.timer = null;
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}
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},
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start: function () {
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DEPRECATED('don\'t use the Delay object, use window.timeout with a callback instead');
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this.delTimer();
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var _this = this;
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this.timer = timer.add(function () { _this.exec.call(_this); },
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this.timeout);
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this._data = {
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_this: arguments[0],
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_params: Array.prototype.slice.call(arguments, 2)
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};
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},
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exec: function () {
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this.delTimer();
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this.func.call(this._data._this, this._data._params);
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}
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};
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