Team:Queens Canada/Javascript/Mousehold
From 2012.igem.org
/**
* * Modified by Andrew Spode Miller (justfdi.com, @spode) on 9th December 2009 to include a "Delay" parameter. *
- /
/**
* jQuery mousehold plugin - fires an event while a mouse click is held down, at a variable interval. * * Additionally, the function is passed a count of times the event has been fired in this session of mousehold. * * @author Remy Sharp (leftlogic.com) * @date 2006-12-15 * @example $("img").mousehold(200, function(i){ }, 1000) * @desc Repeats firing the passed function while the mouse click is held down * * @name mousehold * @type jQuery * @param Number timeout The frequency to repeat the event in milliseconds * @param Function fn A function to execute * @param Number delay Milliseconds of delay before it should start firing * @cat Plugin */
jQuery.fn.mousehold = function(timeout, f, delay) { //Allows us to pass only one parameter if (timeout && typeof timeout == 'function') { f = timeout; timeout = 100; }
//If there is no delay, set a default if (!delay) { var delay = 500; }
//Only continue if it's been passed a function, this is infact a function if (f && typeof f == 'function') { var timer = 0; var delaytimer = 0; var fireStep = 0;
return this.each(function() { jQuery(this).mousedown(function() { fireStep = 1; var ctr = 0; var t = this;
delaytimer = setTimeout(function () { timer = setInterval(function() { ctr++; f.call(t, ctr); fireStep = 2; }, timeout); }, delay); });
//This makes sure that as we mouse out, or mouse up - all the timers are stopped clearMousehold = function() { clearInterval(timer); clearTimeout(delaytimer); if (fireStep == 1) f.call(this, 1); fireStep = 0; }
jQuery(this).mouseout(clearMousehold); jQuery(this).mouseup(clearMousehold); }); } }