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https://github.com/LadybirdBrowser/ladybird
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0fcd8c0bfa
In Element::set_scroll_offset(), when setting a pseudo-element's scroll offset, the code was also incorrectly setting the generating element's own m_scroll_offset. Added an else branch so only the pseudo-element's offset is set. Also adds a ref test for scrollable pseudo-elements to prevent regression. The test scrolls a ::before pseudo-element via wheel event and verifies the content scrolls correctly.
33 lines
541 B
HTML
33 lines
541 B
HTML
<!DOCTYPE html>
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<style>
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/* Wrapper clips the scrollbar area */
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.wrapper {
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width: 85px;
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height: 60px;
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overflow: hidden;
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}
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.scrollable {
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display: block;
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white-space: pre-wrap;
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width: 100px;
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height: 60px;
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overflow: scroll;
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background: lightblue;
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}
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</style>
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<div class="wrapper">
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<div class="scrollable">Line 1
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Line 2
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Line 3
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Line 4
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Line 5
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Line 6
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Line 7
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Line 8</div>
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</div>
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<script>
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// Scroll to the same position as the test (40px)
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document.querySelector('.scrollable').scrollTop = 40;
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</script>
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