/**
 * Adds a window resize event that has its behavior normalized to fire at the
 * end of the resize rather than constantly during the resize.
 * @module event
 * @submodule event-resize
 */


/**
 * Old firefox fires the window resize event once when the resize action
 * finishes, other browsers fire the event periodically during the
 * resize.  This code uses timeout logic to simulate the Firefox 
 * behavior in other browsers.
 * @event windowresize
 * @for YUI
 */
Y.Event.define('windowresize', {

    on: (Y.UA.gecko && Y.UA.gecko < 1.91) ?
        function (node, sub, notifier) {
            sub._handle = Y.Event.attach('resize', function (e) {
                notifier.fire(e);
            });
        } :
        function (node, sub, notifier) {
            // interval bumped from 40 to 100ms as of 3.4.1
            var delay = Y.config.windowResizeDelay || 100;

            sub._handle = Y.Event.attach('resize', function (e) {
                if (sub._timer) {
                    sub._timer.cancel();
                }

                sub._timer = Y.later(delay, Y, function () {
                    notifier.fire(e);
                });
            });
        },

    detach: function (node, sub) {
        if (sub._timer) {
            sub._timer.cancel();
        }
        sub._handle.detach();
    }
    // delegate methods not defined because this only works for window
    // subscriptions, so...yeah.
});