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sm3d.js

/*
* Author: Tiffany Conroy
* RE: http://twitter.com/#!/smashingmag/status/14792918153830400
*
* Lots of help from here:
* http://24ways.org/2010/intro-to-css-3d-transforms
* http://9elements.com/html5demos/matrix3d/
* http://www.eleqtriq.com/2010/05/css-3d-matrix-transformations/
*/

(function(){

  var d, c, s, elem, tricky, thea, theaH, theaJS, theaS;

  d = 0;
  c = function(e,h) {
    var elems = e.childNodes;
    d = (h > d) ? h : d;
    h++;
    for (var i=0, ii = elems.length; i < ii; i++ ) {
      c(elems[i],h);
    }
  };
  c(document.body,d);

  s  = 'body { -webkit-transform: rotateY(40deg) skewY(-10deg) translate3d(0,0,1px); -webkit-transform-style: preserve-3d; } ';
  s += 'body > * { opacity: 0.9; } ';
  s += 'body * { -webkit-transform: translate3d(0,0,'+500/d+'px); -webkit-transform-style: preserve-3d; } ';
  s += 'body div:hover { opacity: 1; background-color: rgba(255, 255, 0, 0.1) !important; } ';
  s += 'body div:hover * { background-color: none; } ';
  s += '#theophani3D { position: fixed; padding: 20px; left: 50%; top: 400px; width: 600px; margin-left: -321px; } ';
  s += '#theophani3D { opacity: 1; background: #fff !important; border: 1px solid #222; } ';
  s += '#theophani3D { -webkit-transform: matrix3d(1,0,0,0, 0,1,0,0, 0,0,1,0, 0,0,401,1); z-index: 1000000; } ';
  s += '#theophani3D * {  -webkit-transform: matrix3d(1,0,0,0, 0,1,0,0, 0,0,1,0, 0,0,0,1); } ';
  s += '#theophani3D span { display: block; line-height: 1.5em; margin: 0; padding: 0; } ';
  s += '#theophani3D span { color: #333 !important; font-size: 18px; text-shadow: none; } ';
  s += '#theophani3D span { font-family: \'Lucida Sans\', \'Lucida Grande\', \'Lucida Sans Unicode\', sans-serif; } ';
  s += '#theophani3D input { width: 100%; } ';

  styleElem = document.createElement('style');
  styleElem.innerHTML = s;
  document.head.appendChild(styleElem);

  theaH  = '<span>Use left and right arrows to rotate</span>';
  theaH += '<span>Use + and - to increase and decrease the distance between layers</span>';

  thea = document.createElement('div');
  thea.id = 'theophani3D';
  thea.innerHTML = theaH;
  document.body.appendChild(thea);

  (function(s){
    var doc = document;
    var rule, r = 40;
    var i = doc.styleSheets.length-1;
    while (doc.styleSheets[i].ownerNode != styleElem) { i-- }
    rule = doc.styleSheets[i].cssRules[2].style;
    console.log(rule);
    doc.addEventListener("keydown",function(e){ if(e.keyCode === 37 && r > -90 ) { r = r-1; } if(e.keyCode === 39  && r < 90) { r = r+1; } if(e.keyCode === 37 || e.keyCode === 39) { doc.body.style.webkitTransform = "rotateY("+r+"deg) skewY("+ -1 * (r/40)*10 +"deg)"; } });
    doc.addEventListener("keydown",function(e){ if(e.keyCode === 189 && s > 0 ) { s = s-1; } if(e.keyCode === 187  && s < 500) { s = s+1; } if(e.keyCode === 187 || e.keyCode === 189) { rule.cssText = " -webkit-transform: translate3d(0,0,"+s+"px); -webkit-transform-style: preserve-3d; " } });
  }(500/d));

}());