third_party/WebKit/LayoutTests/fast/shapes/shape-outside-floats/shape-outside-floats-diamond-margin-polygon.html

   1 <!DOCTYPE html>
   2 <html>
   3 <head>
   4 <script src="../../../resources/js-test.js"></script>
   5 <script src="../resources/subpixel-utils.js"></script>
   6
   7 <style>
   8 #container {
   9     font: 20px/1 Ahem, sans-serif;
  10     width: 200px;
  11     height: 150px;
  12   }
  13
  14 #float-left {
  15     float: left;
  16     position: relative;
  17     overflow: visible;
  18     shape-outside: polygon(70px 20px, 120px 70px, 70px 120px, 20px 70px);
  19     shape-margin: 20px;
  20     width: 140px;
  21     height: 140px;
  22 }
  23
  24 #svg-shape {
  25     position: absolute;
  26     display: block;
  27     top: 0px;
  28     left: 0px;
  29     width: 100px;
  30     height: 100px;
  31     margin: 20px;
  32 }
  33 </style>
  34 <body>
  35 <div id="container">
  36     <div id="float-left">
  37         <svg id="svg-shape" xmlns="http://www.w3.org/2000/">
  38             <polygon points="50,0 100,50 50,100 0,50" fill="rgba(0,150,0, 0.5)"/>
  39         </svg>
  40     </div>
  41     <span id="l1">X</span></br><span id="l2">X</span><br/><span id="l3">X</span><br/><br/><span id="l4">X</span><br/><span id="l5">X</span><br/><span id="l6">X</span>
  42 </div>
  43 <div id="console"></div>
  44 </body>
  45 <script>
  46 function elementRect(elementId)
  47 {
  48     var s = document.getElementById("container").getBoundingClientRect();
  49     var r = document.getElementById(elementId).getBoundingClientRect();
  50     return {left: r.left - s.left, top: r.top - s.top, width: r.width, height: r.height};
  51 }
  52
  53 // The shape-outside polygon's X and Y coordinates are 20, 70, 120, specified relative to the
  54 // "float-left" element. Its shape-marign is 20px, which means that the X and Y limits of the
  55 // margin boundary are 0, and 140. This is because the margin boundary has circular arc segments
  56 // at the vertices, i.e. it's a rounded rectangle rotated by 45 degrees. None of the character
  57 // positions in this test are defined by the arc segments.
  58 //
  59 // The left edge of the (20px square) Ahem character on the first "l1" line (y == 20) is:
  60 // 20 + (20*sqrt(2) + 50) = 98.28. The second and third lines, "l2" and "l3" are similar, each
  61 // one begins 20 pixels farther to the right. The left edges of "l4-l6" are the same as the first three,
  62 // just in reverse order.
  63
  64 function marginLeftXIntercept(lineNumber)
  65 {
  66     var f = SubPixelLayout.snapToLayoutUnit(lineNumber * 20 + 20 * Math.sqrt(2) + 50);
  67     return Math.round(f);
  68 }
  69
  70 var quiet = true; // PASS output depends on SubPixelLayout.isEnabled()
  71
  72 shouldBe("elementRect('l1').top", "0");
  73 shouldBeCloseTo("elementRect('l1').left", marginLeftXIntercept(1), 1, quiet);
  74
  75 shouldBe("elementRect('l2').top", "20");
  76 shouldBeCloseTo("elementRect('l2').left", marginLeftXIntercept(2), 1, quiet);
  77
  78 shouldBe("elementRect('l3').top", "40");
  79 shouldBeCloseTo("elementRect('l3').left", marginLeftXIntercept(3), 1, quiet);
  80
  81 shouldBe("elementRect('l4').top", "80");
  82 shouldBeCloseTo("elementRect('l4').left", marginLeftXIntercept(3), 1, quiet);
  83
  84 shouldBe("elementRect('l5').top", "100");
  85 shouldBeCloseTo("elementRect('l5').left", marginLeftXIntercept(2), 1, quiet);
  86
  87 shouldBe("elementRect('l6').top", "120");
  88 shouldBeCloseTo("elementRect('l6').left", marginLeftXIntercept(1), 1, quiet);
  89
  90 </script>
  91 </html>