69 lines
2.8 KiB
HTML
69 lines
2.8 KiB
HTML
<!DOCTYPE html>
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<title>CSS Anchor Positioning: try-tactic</title>
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<link rel="help" href="https://drafts.csswg.org/css-anchor-position-1/#typedef-position-try-fallbacks-try-tactic">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<style>
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@position-try --pf {
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left:10px;
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top:20px;
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}
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#cb {
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position: absolute;
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width: 400px;
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height: 400px;
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border: 1px solid black;
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}
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#target {
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position: absolute;
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left: 99999px; /* force fallback */
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width: 30px;
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height: 40px;
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background-color: skyblue;
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}
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</style>
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<div id=cb>
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<div id=target></div>
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</div>
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<script>
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function test_try_tactic(try_tactic, expected_offsets) {
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target.style.positionTryFallbacks = `--pf ${try_tactic}`;
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test(() => {
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assert_equals(target.offsetLeft, expected_offsets.left, 'offsetLeft');
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assert_equals(target.offsetTop, expected_offsets.top, 'offsetTop');
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assert_equals(target.offsetWidth, expected_offsets.width, 'offsetWidth');
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assert_equals(target.offsetHeight, expected_offsets.height, 'offsetHeight');
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}, target.style.positionTryFallbacks);
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}
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test_try_tactic('', {left:10, top:20, width:30, height:40});
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// bottom:20px
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test_try_tactic('flip-block', {left:10, top:340, width:30, height:40});
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// right:10px
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test_try_tactic('flip-inline', {left:360, top:20, width:30, height:40});
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// right:10px; bottom:20px
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test_try_tactic('flip-block flip-inline', {left:360, top:340, width:30, height:40});
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test_try_tactic('flip-inline flip-block', {left:360, top:340, width:30, height:40});
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// left:20px; top:10px; width:40px; height:30px
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test_try_tactic('flip-start', {left:20, top:10, width:40, height:30});
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test_try_tactic('flip-block flip-start flip-inline', {left:20, top:10, width:40, height:30});
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test_try_tactic('flip-inline flip-start flip-block', {left:20, top:10, width:40, height:30});
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// left:20px; bottom:10px; width:40px; height:30px
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test_try_tactic('flip-start flip-block', {left:20, top:360, width:40, height:30});
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test_try_tactic('flip-inline flip-start', {left:20, top:360, width:40, height:30});
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// right:20px; top:10px; width:40px; height:30px
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test_try_tactic('flip-start flip-inline', {left:340, top:10, width:40, height:30});
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test_try_tactic('flip-block flip-start', {left:340, top:10, width:40, height:30});
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// right:20px; bottom:10px; width:40px; height:30px
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test_try_tactic('flip-start flip-block flip-inline', {left:340, top:360, width:40, height:30});
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test_try_tactic('flip-start flip-inline flip-block', {left:340, top:360, width:40, height:30});
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test_try_tactic('flip-inline flip-block flip-start', {left:340, top:360, width:40, height:30});
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test_try_tactic('flip-block flip-inline flip-start', {left:340, top:360, width:40, height:30});
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</script>
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