#287 ✓duplicate

PeriodicalUpdater expansion

Reported by crasy | August 17th, 2008 @ 02:37 PM


its my first ticket soo please excuse formerrors and my english, it is terrible.

i want to reset only! the timer from the PeriodicalUpdater whithout do a new request. over stop and start does a new request will be effected.

i think it is a good function to reset the timer for anyone, too.

my solution (quick and dirty):

var PU = new Ajax.PeriodicalUpdater('foo', 'bar.php', {
    method: 'get', frequency: 10, decay: 1

PU.timer = PU.onTimerEvent.bind(PU).delay(PU.decay * PU.frequency);

but i think this is fast implementated in the prototype source for a clean and fast solution.

e.G. (untested):

Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
  initialize: function($super, container, url, options) {
    this.onComplete = this.options.onComplete;

    this.frequency = (this.options.frequency || 2);
    this.decay = (this.options.decay || 1);

    this.updater = { };
    this.container = container;
    this.url = url;


  start: function() {
    this.options.onComplete = this.updateComplete.bind(this);

  stop: function() {
    this.updater.options.onComplete = undefined;
    (this.onComplete || Prototype.emptyFunction).apply(this, arguments);

  resset: function() {
    this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);

  updateComplete: function(response) {
    if (this.options.decay) {
      this.decay = (response.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

      this.lastText = response.responseText;
    this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);

  onTimerEvent: function() {
    this.updater = new Ajax.Updater(this.container, this.url, this.options);

greetz crasy aka. Kay Linzmeier

PS: thanks for your work, its a realy realy realy good framework.

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