third_party/WebKit/LayoutTests/fast/css/getComputedStyle/getComputedStyle-transform.html

   1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
   2    "http://www.w3.org/TR/html4/loose.dtd">
   3
   4 <html lang="en">
   5 <head>
   6   <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
   7   <title>Transform Origin</title>
   8   <style type="text/css" media="screen">
   9     .container {
  10       height: 100px;
  11       width: 200px;
  12       margin: 30px;
  13       outline: 1px solid black;
  14     }
  15     .box {
  16       height: 100%;
  17       width: 100%;
  18       padding: 5px;
  19       margin: 5px;
  20       border: 5px solid gray;
  21       background-color: green;
  22       -webkit-transform-origin: 20% 50%;
  23     }
  24     #results {
  25       margin-top: 150px;
  26     }
  27   </style>
  28   <script type="text/javascript" charset="utf-8">
  29     if (window.testRunner) {
  30       testRunner.dumpAsText();
  31       testRunner.waitUntilDone();
  32     }
  33
  34     var gTests = [
  35       { 'transform' : 'translate(80px, 90px)',  'result' : 'matrix(1, 0, 0, 1, 80, 90)' },
  36       { 'transform' : 'translate(10px, 50%)',   'result' : 'matrix(1, 0, 0, 1, 10, 60)' },
  37       { 'transform' : 'scale(1.2, 0.8)',        'result' : 'matrix(1.2, 0, 0, 0.8, 0, 0)' },
  38       { 'transform' : 'skew(-0.7rad, 20deg)',   'result' : 'matrix(1, 0.36397, -0.842288, 1, 0, 0)' },
  39       { 'transform' : 'rotate(45deg)',          'result' : 'matrix(0.707107, 0.707107, -0.707107, 0.707107, 0, 0)' },
  40     ];
  41
  42     function compareTransform(expected, computed)
  43     {
  44       var re = /^matrix\(([^,]+), ([^,]+), ([^,]+), ([^,]+), ([^,]+?)(?:px)?, ([^,]+?)(?:px)?\)$/;
  45       var parsedExpected = re.exec(expected);
  46       var parsedComputed = re.exec(computed);
  47       for(var i = 1; i < 7; i++) {
  48          // use +/- 0.05 to avoid problems with rounding
  49          if (!(Math.abs(parsedComputed[i] - parsedExpected[i]) < 0.05))
  50             return false;
  51       }
  52       return true;
  53     }
  54
  55     function runTests()
  56     {
  57       var testBox = document.getElementById('test-box');
  58       var testSpan = document.getElementById('test-span');
  59       var resultsBox = document.getElementById('results');
  60
  61       gTests.forEach(function(curTest) {
  62         // set one of our test transforms
  63         testBox.style.webkitTransform = curTest.transform;
  64         testSpan.style.webkitTransform = curTest.transform;
  65         // read back computed style
  66         var computedTransform = window.getComputedStyle(testBox).webkitTransform;
  67         var computedSpanTransform = window.getComputedStyle(testSpan).webkitTransform;
  68         // compare expected result to computed transformation matrix
  69         var success = compareTransform(curTest.result, computedTransform);
  70         var result;
  71         if (success)
  72           result = curTest.transform + ' expected <code>' + curTest.result + '</code> : PASS';
  73         else
  74           result = curTest.transform + ' expected <code>' + curTest.result + '</code>, got <code>' + computedTransform + '</code> : FAIL';
  75         resultsBox.innerHTML += result + '<br>';
  76
  77       });
  78
  79       if (window.testRunner)
  80         testRunner.notifyDone();
  81     }
  82   </script>
  83 </head>
  84 <body onload="runTests()">
  85
  86   <div class="container">
  87     <div id="test-box" class="box"></div>
  88   </div>
  89
  90   <span id="test-span" class="box"></span>
  91
  92   <div id="results">
  93   </div>
  94 </body>
  95 </html>