diff -r f507feede89a -r 09a1c134465b web/wp-includes/js/hoverIntent.js --- a/web/wp-includes/js/hoverIntent.js Wed Dec 19 12:35:13 2012 -0800 +++ b/web/wp-includes/js/hoverIntent.js Wed Dec 19 17:46:52 2012 -0800 @@ -1,1 +1,106 @@ -(function(a){a.fn.hoverIntent=function(k,j){var l={sensitivity:7,interval:100,timeout:0};l=a.extend(l,j?{over:k,out:j}:k);var n,m,h,d;var e=function(f){n=f.pageX;m=f.pageY};var c=function(g,f){f.hoverIntent_t=clearTimeout(f.hoverIntent_t);if((Math.abs(h-n)+Math.abs(d-m)) +* +* hoverIntent is currently available for use in all personal or commercial +* projects under both MIT and GPL licenses. This means that you can choose +* the license that best suits your project, and use it accordingly. +* +* // basic usage (just like .hover) receives onMouseOver and onMouseOut functions +* $("ul li").hoverIntent( showNav , hideNav ); +* +* // advanced usage receives configuration object only +* $("ul li").hoverIntent({ +* sensitivity: 7, // number = sensitivity threshold (must be 1 or higher) +* interval: 100, // number = milliseconds of polling interval +* over: showNav, // function = onMouseOver callback (required) +* timeout: 0, // number = milliseconds delay before onMouseOut function call +* out: hideNav // function = onMouseOut callback (required) +* }); +* +* @param f onMouseOver function || An object with configuration options +* @param g onMouseOut function || Nothing (use configuration options object) +* @author Brian Cherne brian(at)cherne(dot)net +*/ +(function($) { + $.fn.hoverIntent = function(f,g) { + // default configuration options + var cfg = { + sensitivity: 7, + interval: 100, + timeout: 0 + }; + // override configuration options with user supplied object + cfg = $.extend(cfg, g ? { over: f, out: g } : f ); + + // instantiate variables + // cX, cY = current X and Y position of mouse, updated by mousemove event + // pX, pY = previous X and Y position of mouse, set by mouseover and polling interval + var cX, cY, pX, pY; + + // A private function for getting mouse position + var track = function(ev) { + cX = ev.pageX; + cY = ev.pageY; + }; + + // A private function for comparing current and previous mouse position + var compare = function(ev,ob) { + ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t); + // compare mouse positions to see if they've crossed the threshold + if ( ( Math.abs(pX-cX) + Math.abs(pY-cY) ) < cfg.sensitivity ) { + $(ob).unbind("mousemove",track); + // set hoverIntent state to true (so mouseOut can be called) + ob.hoverIntent_s = 1; + return cfg.over.apply(ob,[ev]); + } else { + // set previous coordinates for next time + pX = cX; pY = cY; + // use self-calling timeout, guarantees intervals are spaced out properly (avoids JavaScript timer bugs) + ob.hoverIntent_t = setTimeout( function(){compare(ev, ob);} , cfg.interval ); + } + }; + + // A private function for delaying the mouseOut function + var delay = function(ev,ob) { + ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t); + ob.hoverIntent_s = 0; + return cfg.out.apply(ob,[ev]); + }; + + // A private function for handling mouse 'hovering' + var handleHover = function(e) { + // copy objects to be passed into t (required for event object to be passed in IE) + var ev = jQuery.extend({},e); + var ob = this; + + // cancel hoverIntent timer if it exists + if (ob.hoverIntent_t) { ob.hoverIntent_t = clearTimeout(ob.hoverIntent_t); } + + // if e.type == "mouseenter" + if (e.type == "mouseenter") { + // set "previous" X and Y position based on initial entry point + pX = ev.pageX; pY = ev.pageY; + // update "current" X and Y position based on mousemove + $(ob).bind("mousemove",track); + // start polling interval (self-calling timeout) to compare mouse coordinates over time + if (ob.hoverIntent_s != 1) { ob.hoverIntent_t = setTimeout( function(){compare(ev,ob);} , cfg.interval );} + + // else e.type == "mouseleave" + } else { + // unbind expensive mousemove event + $(ob).unbind("mousemove",track); + // if hoverIntent state is true, then call the mouseOut function after the specified delay + if (ob.hoverIntent_s == 1) { ob.hoverIntent_t = setTimeout( function(){delay(ev,ob);} , cfg.timeout );} + } + }; + + // bind the function to the two event listeners + return this.bind('mouseenter',handleHover).bind('mouseleave',handleHover); + }; +})(jQuery); \ No newline at end of file