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products/Sources/formale Sprachen/C/Firefox/layout/style/test/ (Browser von der Mozilla Stiftung Version 136.0.1^©) Datei vom 10.2.2025 mit Größe 6 kB

Quelle test_bug652486.html Sprache: HTML

products/Sources/formale Sprachen/C/Firefox/layout/style/test/test_bug652486.html

<!DOCTYPE HTML>
<html>

<head>
  <title>Test for Bug 652486, Bug 1039488 and Bug 1574222</title>
  <script src="/tests/SimpleTest/SimpleTest.js"></script>
  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=652486">Mozilla Bug 652486</a>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1039488">Mozilla Bug 1039488</a>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1574222">Mozilla Bug 1574222</a>

<p id="display"></p>
<div id="content" style="display: none">
  <div id="t"></div>
</div>
<pre id="test">
<script class="testbody" type="text/javascript">

/** Test for Bug 652486, Bug 1039488 and Bug 1574222 **/

function c() {
  return document.defaultView.getComputedStyle($('t')).
           getPropertyValue("text-decoration");
}

// The default value of the 'color' property, which in turn establishes the
// default value of 'text-decoration-color' (via the 'currentColor' keyword).
var defaultLineColor = "rgb(0, 0, 0)";

var tests = [
  // When only text-decoration was specified, text-decoration should look like
  // a longhand property. However, as of Bug 1574222, the getComputedStyle()
  // serialization for "text-decoration" will always include the color,
  // because we can't tell whether the resolved color value came from the
  // initial "currentColor" value (and could safely be omitted) vs. whether it
  // came from a custom specified value (and cannot be omitted).
  { decoration: "none",
    line: null, color: null, style: null,
    expectedValue: defaultLineColor },
  { decoration: "underline",
    line: null, color: null, style: null,
    expectedValue: "underline " + defaultLineColor },
  { decoration: "overline",
    line: null, color: null, style: null,
    expectedValue: "overline " + defaultLineColor },
  { decoration: "line-through",
    line: null, color: null, style: null,
    expectedValue: "line-through " + defaultLineColor },
  { decoration: "blink",
    line: null, color: null, style: null,
    expectedValue: "blink " + defaultLineColor },
  { decoration: "underline overline",
    line: null, color: null, style: null,
    expectedValue: "underline overline " + defaultLineColor },
  { decoration: "underline line-through",
    line: null, color: null, style: null,
    expectedValue: "underline line-through " + defaultLineColor },
  { decoration: "blink underline",
    line: null, color: null, style: null,
    expectedValue: "underline blink " + defaultLineColor },
  { decoration: "underline blink",
    line: null, color: null, style: null,
    expectedValue: "underline blink " + defaultLineColor },

  // When only text-decoration-line or text-blink was specified,
  // text-decoration should look like a longhand property.
  // However, as of Bug 1574222, the getComputedStyle() serialization for
  // "text-decoration" will always include the color, because we can't tell
  // whether the resolved color value came from the initial "currentColor"
  // value (and could safely be omitted) vs. whether it came from a custom
  // specified value (and cannot be omitted).
  { decoration: null,
    line: "blink", color: null, style: null,
    expectedValue: "blink " + defaultLineColor },
  { decoration: null,
    line: "underline", color: null, style: null,
    expectedValue: "underline " + defaultLineColor },
  { decoration: null,
    line: "overline", color: null, style: null,
    expectedValue: "overline " + defaultLineColor },
  { decoration: null,
    line: "line-through", color: null, style: null,
    expectedValue: "line-through " + defaultLineColor },
  { decoration: null,
    line: "blink underline", color: null, style: null,
    expectedValue: "underline blink " + defaultLineColor },

  // When text-decoration-color isn't its initial value,
  // text-decoration should be a shorthand property.
  { decoration: "blink",
    line: null, color: "rgb(0, 0, 0)", style: null,
    expectedValue: "blink rgb(0, 0, 0)" },
  { decoration: "underline",
    line: null, color: "black", style: null,
    expectedValue: "underline rgb(0, 0, 0)" },
  { decoration: "overline",
    line: null, color: "#ff0000", style: null,
    expectedValue: "overline rgb(255, 0, 0)" },
  { decoration: "line-through",
    line: null, color: "initial", style: null,
    expectedValue: "line-through " + defaultLineColor },
  { decoration: "blink underline",
    line: null, color: "currentColor", style: null,
    expectedValue: "underline blink " + defaultLineColor },
  { decoration: "underline line-through",
    line: null, color: "currentcolor", style: null,
    expectedValue: "underline line-through " + defaultLineColor },

  // When text-decoration-style isn't its initial value,
  // text-decoration should be a shorthand property.
  { decoration: "blink",
    line: null, color: null, style: "-moz-none",
    expectedValue: "blink -moz-none " + defaultLineColor },
  { decoration: "underline",
    line: null, color: null, style: "dotted",
    expectedValue: "underline dotted " + defaultLineColor },
  { decoration: "overline",
    line: null, color: null, style: "dashed",
    expectedValue: "overline dashed " + defaultLineColor },
  { decoration: "line-through",
    line: null, color: null, style: "double",
    expectedValue: "line-through double " + defaultLineColor },
  { decoration: "blink underline",
    line: null, color: null, style: "wavy",
    expectedValue: "underline blink wavy " + defaultLineColor },
  { decoration: "underline blink overline line-through",
    line: null, color: null, style: "solid",
    expectedValue: "underline overline line-through blink " + defaultLineColor },
  { decoration: "line-through overline underline",
    line: null, color: null, style: "initial",
    expectedValue: "underline overline line-through " + defaultLineColor }
];

function makeDeclaration(aTest)
{
  var str = "";
  if (aTest.decoration) {
    str += "text-decoration: " + aTest.decoration + "; ";
  }
  if (aTest.color) {
    str += "text-decoration-color: " + aTest.color + "; ";
  }
  if (aTest.line) {
    str += "text-decoration-line: " + aTest.line + "; ";
  }
  if (aTest.style) {
    str += "text-decoration-style: " + aTest.style + "; ";
  }
  return str;
}

function clearStyleObject()
{
  $('t').style.textDecoration = null;
}

for (var i = 0; i < tests.length; ++i) {
  var test = tests[i];
  if (test.decoration) {
    $('t').style.textDecoration = test.decoration;
  }
  if (test.color) {
    $('t').style.textDecorationColor = test.color;
  }
  if (test.line) {
    $('t').style.textDecorationLine = test.line;
  }
  if (test.style) {
    $('t').style.textDecorationStyle = test.style;
  }

  var dec = makeDeclaration(test);
  is(c(), test.expectedValue, "Test1 (computed value): " + dec);

  clearStyleObject();

  $('t').setAttribute("style", dec);

  is(c(), test.expectedValue, "Test2 (computed value): " + dec);

  $('t').removeAttribute("style");
}

</script>
</pre>
</body>
</html>

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