зеркало из https://github.com/mozilla/gecko-dev.git
90 строки
2.8 KiB
HTML
90 строки
2.8 KiB
HTML
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<!DOCTYPE HTML>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=534804
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-->
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<head>
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<title>Test for Bug 534804</title>
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<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
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<style type="text/css" id="styleone"> </style>
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<style type="text/css" id="styletwo"> </style>
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</head>
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<body>
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<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=534804">Mozilla Bug 534804</a>
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<p id="display"></p>
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<pre id="test">
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<script type="application/javascript">
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/** Test for Bug 534804 **/
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var styleone = document.getElementById("styleone");
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var styletwo = document.getElementById("styletwo");
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var display = document.getElementById("display");
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run1();
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styletwo.firstChild.data = "#e > span:nth-child(2n+1) { color: green }";
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run1();
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styletwo.firstChild.data = "#e > span:first-child { color: green }";
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run1();
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styletwo.firstChild.data = "#e > span:nth-last-child(2n+1) { color: green }";
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run1();
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styletwo.firstChild.data = "#e > span:last-child { color: green }";
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run1();
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function run1()
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{
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function identity(bool) { return bool; }
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function inverse(bool) { return !bool; }
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function always_false(bool) { return false; }
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run2("#e:empty + span", identity, always_false);
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run2("#e:empty ~ span", identity, identity);
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run2("#e:not(:empty) + span", inverse, always_false);
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run2("#e:not(:empty) ~ span", inverse, inverse);
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}
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function run2(sel, next_sibling_rule, later_sibling_rule)
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{
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styleone.firstChild.data = sel + " { text-decoration: underline }";
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// Rebuild the subtree every time.
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var span1 = document.createElement("span");
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span1.id = "e";
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var span2 = document.createElement("span");
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var span3 = document.createElement("span");
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display.appendChild(span1);
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display.appendChild(span2);
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display.appendChild(span3);
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function td(e) { return getComputedStyle(e, "").textDecoration; }
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function check(desc, isempty) {
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is(td(span2), next_sibling_rule(isempty) ? "underline" : "none",
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"match of next sibling in state " + desc);
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is(td(span3), later_sibling_rule(isempty) ? "underline" : "none",
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"match of next sibling in state " + desc);
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}
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check("initially empty", true);
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var kid = document.createElement("span");
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span1.appendChild(kid);
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check("after append", false);
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span1.removeChild(kid);
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check("after remove", true);
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span1.appendChild(document.createTextNode(""));
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span1.appendChild(document.createComment("a comment"));
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span1.appendChild(document.createTextNode(""));
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check("after append of insignificant children", true);
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span1.insertBefore(kid, span1.childNodes[1]);
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check("after insert", false);
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display.removeChild(span1);
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display.removeChild(span2);
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display.removeChild(span3);
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}
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</script>
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</pre>
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</body>
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</html>
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