ant-http/build/htdocs/dist/themes/styles/material/theme.js

'use strict';

OSjs.Applications.CoreWM.CurrentTheme = {
  init: function() {
  },

  destroy: function() {
  },

  event: function(e) {
    if ( e.target && e.target.nodeName.toLowerCase() === 'button' ) {
      var parent = e.target;
      if ( parseFloat(window.getComputedStyle(parent).getPropertyValue('opacity')) > 0 ) {
        var drop;
        var maxWidthHeight = Math.max(parent.clientWidth, parent.clientHeight);
        var drops = Array.prototype.slice.call(parent.childNodes).filter(function(e) {
          return (e.className === 'drop animate');
        });
        var freeDrops = drops.slice().filter(function(e) {
          // .drop opacity is 1 when it's hidden... css animations
          return parseFloat(window.getComputedStyle(e).getPropertyValue('opacity')) === 1;
        });
        if ( drops.length === 0 || freeDrops.length === 0 ) {
          drop = document.createElement('b');
          drop.className = 'drop';
          drop.style.width = maxWidthHeight + 'px';
          drop.style.height = maxWidthHeight + 'px';
          drop = parent.appendChild(drop);
        }
        else {
          drop = freeDrops[0];
          drop.className = 'drop';
        }
        var rect = parent.getBoundingClientRect();
        drop.style.top = (e.pageY - rect.top - maxWidthHeight / 2) + 'px';
        drop.style.left = (e.pageX - rect.left - maxWidthHeight / 2) + 'px';
        drop.className = 'drop animate';
      }
    }
  }
};