Hacking at 0300

After some prompting by those actually using it, I paid more attention to my flexcal date picker plugin, adding features like buttons, drop-down menus and formatted dates. The documentation is on my github pages at github.bililite.com/flexcal, and the code is on github at github.com/dwachss/flexcal. All other posts about it are obsolete.

The current stable version is 3.4.

jQuery's animate is useful for animating CSS properties, but there are times that you want to take advantage of the bookkeeping that jQuery provides to animate, with easing functions etc., but not to change an animatable property. The flip plugin for Mike Alsup's cycle2 has a clever hack to animate some otherwise unused property instead:

<input type=button value="Click Me" id=rotatebutton />
<div id=rotatetest style="height: 100px; width: 100px; background: #abcdef" >Whee!</div>

$('#rotatebutton').click(function(){
  $('<div>'). // create an unused element (could use a preexisting one to save some time and memory)
    animate({lineHeight: 360}, // we aren't really using lineHeight; we just want something numeric.
      // We want it to go from 0 (the default for anything that has a value of 'auto') to 360
    {
      duration: 2000,
      easing: 'easeOutElastic', // use jQuery and jQuery UI to manage the animation timing
      step: function (now){
        $('#rotatetest').css('transform', 'rotate('+now+'deg)'); // use the number that animate gives us
      }
    });
});