зеркало из https://github.com/mozilla/gecko-dev.git
84 строки
2.7 KiB
HTML
84 строки
2.7 KiB
HTML
<!DOCTYPE html>
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<html>
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<!--
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https://bugzilla.mozilla.org/show_bug.cgi?id=812687
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-->
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<head>
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<title>Test for Bug 812687: focus order of reordered flex items</title>
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<script src="/tests/SimpleTest/SimpleTest.js"></script>
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<script src="/tests/SimpleTest/EventUtils.js"></script>
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<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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<style>
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.container { display: flex; }
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#focus1 { background: yellow; }
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#focus2 { background: lightgray; }
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#focus3 { background: orange; }
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#focus4 { background: lightblue; }
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#focus5 { background: pink; }
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</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=812687">Mozilla Bug 812687</a>
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<p id="display">
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<a href="#" id="beforeContainer">Link before container</a>
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<!-- This flex container's children are reordered visually with the "order"
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CSS property, but their focus order (when tabbing through them) should
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match their DOM order. So, #focus1 should receive focus before the other
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flex items, even though it isn't visually the first flex item. And so
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on, up to #focus5, which is visually first (due to its negative "order"
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value) but should be focused last (due to being last in the DOM). -->
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<div class="container">
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<a href="#" id="focus1">1</a>
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<div><a href="#" id="focus2">2</a></div>
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<div style="order: 100"><a href="#" id="focus3">3</a></div>
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<div><a href="#" id="focus4">4</a></div>
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<a href="#" id="focus5" style="order: -1">5</a>
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</div>
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</p>
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<div id="content" style="display: none"></div>
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<pre id="test">
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<script class="testbody" type="text/javascript">
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/** Test for Bug 812687 **/
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const gExpectedFocusedIds = [
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"focus1",
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"focus2",
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"focus3",
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"focus4",
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"focus5"
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];
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function doTest() {
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// First, we focus something just before the flex container:
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document.getElementById('beforeContainer').focus();
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is(document.activeElement, document.getElementById('beforeContainer'),
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"explicitly-focused link should gain focus");
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// And then we advance focus across the focusable things in the flex container
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// and check that we traverse them in the expected order:
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for (let expectedId of gExpectedFocusedIds) {
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synthesizeKey("KEY_Tab");
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is(document.activeElement, document.getElementById(expectedId),
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"expecting element '#" + expectedId + "' to be focused");
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}
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SimpleTest.finish();
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}
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// Before we start, we have to bump Mac to make its 'tab'-key focus behavior
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// predicatble:
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function begin() {
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SpecialPowers.pushPrefEnv({ set: [[ "accessibility.tabfocus", 7 ]] }, doTest);
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}
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SimpleTest.waitForExplicitFinish();
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addLoadEvent(begin);
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</script>
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</pre>
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</body>
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</html>
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