layout/style/test/test_bug319381.html

   1 <!DOCTYPE HTML>
   2 <html>
   3 <!--
   4 https://bugzilla.mozilla.org/show_bug.cgi?id=319381
   5 -->
   6 <head>
   7   <title>Test for Bug 319381</title>
   8   <script type="text/javascript" src="/MochiKit/MochiKit.js"></script>
   9   <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
  10   <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
  11 </head>
  12 <body>
  13 <a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=319381">Mozilla Bug 319381</a>
  14 <p id="display"></p>
  15 <div id="content" style="display: none">
  16   <div id="t"></div>
  17 </div>
  18 <pre id="test">
  19 <script class="testbody" type="text/javascript">
  20
  21 /** Test for Bug 319381 **/
  22
  23 function c() {
  24   return document.defaultView.getComputedStyle($('t'), "").
  25     getPropertyValue("overflow");
  26 }
  27
  28 function cval() {
  29   return document.defaultView.getComputedStyle($('t'), "").
  30     getPropertyCSSValue("overflow");
  31 }
  32
  33 var vals = ["visible", "hidden", "auto", "scroll"];
  34 var mozVals = ["-moz-scrollbars-vertical", "-moz-scrollbars-horizontal"];
  35 var i, j;
  36
  37 for (i = 0; i < vals.length; ++i) {
  38   $('t').style.overflow = vals[i];
  39   is($('t').style.overflow, vals[i], "Roundtrip");
  40   is(c(), vals[i], "Simple property set");
  41   isnot(cval(), null, "Simple property as CSSValue");
  42 }
  43
  44 $('t').style.overflow = mozVals[0];
  45 is($('t').style.getPropertyValue("overflow-y"), "scroll", "Roundtrip");
  46 is($('t').style.getPropertyValue("overflow-x"), "hidden", "Roundtrip");
  47 is($('t').style.overflow, "", "Shorthand read directly");
  48 is(c(), "", "Shorthand computed");
  49 is(cval(), null, "Shorthand as CSSValue");
  50
  51 $('t').style.overflow = mozVals[1];
  52 is($('t').style.getPropertyValue("overflow-x"), "scroll", "Roundtrip");
  53 is($('t').style.getPropertyValue("overflow-y"), "hidden", "Roundtrip");
  54 is($('t').style.overflow, "", "Shorthand read directly");
  55 is(c(), "", "Shorthand computed");
  56 is(cval(), null, "Shorthand as CSSValue");
  57
  58 for (i = 0; i < vals.length; ++i) {
  59   for (j = 0; j < vals.length; ++j) {
  60     $('t').setAttribute("style",
  61                         "overflow-x: " + vals[i] + "; overflow-y: " + vals[j]);
  62     is($('t').style.getPropertyValue("overflow-x"), vals[i], "Roundtrip");
  63     is($('t').style.getPropertyValue("overflow-y"), vals[j], "Roundtrip");
  64
  65     if (i == j) {
  66       is($('t').style.overflow, vals[i], "Shorthand serialization");
  67     } else {
  68       is($('t').style.overflow, "", "Shorthand serialization");
  69     }
  70
  71     // "visible" overflow-x and overflow-y become "auto" in computed style if
  72     // the other direction is not also "visible".
  73     if (i == j || (vals[i] == "visible" && vals[j] == "auto")) {
  74       is(c(), vals[j], "Shorthand computation");
  75       isnot(cval(), null, "Shorthand computation as CSSValue");
  76     } else if (vals[j] == "visible" && vals[i] == "auto") {
  77       is(c(), vals[i], "Shorthand computation");
  78       isnot(cval(), null, "Shorthand computation as CSSValue");
  79     } else {
  80       is(c(), "", "Shorthand computation");
  81       is(cval(), null, "Shorthand computation as CSSValue");
  82     }
  83   }
  84 }
  85
  86 </script>
  87 </pre>
  88 </body>
  89 </html>
  90