adding hoverIntent plugin

diff --git a/resources/Resources.php b/resources/Resources.php
index ef97d8f..82911fd 100644 (file)
--- a/resources/Resources.php
+++ b/resources/Resources.php
@@ -62,6 +62,9 @@ return array(
        'jquery.highlightText' => array(
                'scripts' => 'resources/jquery/jquery.highlightText.js'
        ),
+       'jquery.hoverIntent' => array(
+               'scripts' => 'resources/jquery/jquery.hoverIntent.js'
+       ),
        'jquery.placeholder' => array(
                'scripts' => 'resources/jquery/jquery.placeholder.js'
        ),

diff --git a/resources/jquery/jquery.hoverIntent.js b/resources/jquery/jquery.hoverIntent.js
new file mode 100644 (file)
index 0000000..d145a8a
--- /dev/null
+++ b/resources/jquery/jquery.hoverIntent.js
@@ -0,0 +1,111 @@
+/**
+* hoverIntent is similar to jQuery's built-in "hover" function except that
+* instead of firing the onMouseOver event immediately, hoverIntent checks
+* to see if the user's mouse has slowed down (beneath the sensitivity
+* threshold) before firing the onMouseOver event.
+* 
+* hoverIntent r5 // 2007.03.27 // jQuery 1.1.2+
+* <http://cherne.net/brian/resources/jquery.hoverIntent.html>
+* 
+* 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
+* $("ul li").hoverIntent({
+*      sensitivity: 7, // number = sensitivity threshold (must be 1 or higher)
+*      interval: 100,   // number = milliseconds of polling interval
+*      over: showNav,  // function = onMouseOver callback (required)
+*      timeout: 0,   // number = milliseconds delay before onMouseOut function call
+*      out: hideNav    // function = onMouseOut callback (required)
+* });
+* 
+* @param  f  onMouseOver function || An object with configuration options
+* @param  g  onMouseOut function  || Nothing (use configuration options object)
+* @author    Brian Cherne <brian@cherne.net>
+*/
+(function($) {
+       $.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) {
+                       // next three lines copied from jQuery.hover, ignore children onMouseOver/onMouseOut
+                       var p = (e.type == "mouseover" ? e.fromElement : e.toElement) || e.relatedTarget;
+                       while ( p && p != this ) { try { p = p.parentNode; } catch(e) { p = this; } }
+                       if ( p == this ) { return false; }
+
+                       // 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); }
+
+                       // else e.type == "onmouseover"
+                       if (e.type == "mouseover") {
+                               // 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 == "onmouseout"
+                       } 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.mouseover(handleHover).mouseout(handleHover);
+       };
+})(jQuery);
\ No newline at end of file