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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /layout/generic/test/test_scrollframe_abspos_interrupt.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'layout/generic/test/test_scrollframe_abspos_interrupt.html')
| -rw-r--r-- | layout/generic/test/test_scrollframe_abspos_interrupt.html | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/layout/generic/test/test_scrollframe_abspos_interrupt.html b/layout/generic/test/test_scrollframe_abspos_interrupt.html new file mode 100644 index 0000000000..fe25e991f9 --- /dev/null +++ b/layout/generic/test/test_scrollframe_abspos_interrupt.html @@ -0,0 +1,60 @@ +<!doctype html> +<title>Test for bug 1526609</title> +<script src="/tests/SimpleTest/SimpleTest.js"></script> +<script src="/tests/SimpleTest/EventUtils.js"></script> +<style> + body { + margin: 0; + } + .scroller { + overflow-y: auto; + position: relative; + width: 500px; + height: 300px; + } + .kid { + position: absolute; + width: 100%; + background: linear-gradient(to bottom, red, green); + line-height: 100px; + } +</style> +<div class="scroller" id="scroller"> + <div class="kid"></div> +</div> +<script> +{ + let text = " foo bar "; + + for (let i = 0; i < 16; ++i) + text = text + text; + document.querySelector(".kid").innerText = text; +} + +SimpleTest.waitForExplicitFinish(); + +const scroller = document.querySelector("#scroller"); + +is(scroller.scrollTop, 0, "Initial scroll position"); +ok(scroller.scrollTopMax > 0, "Should be able to scroll down"); + +scroller.scrollTop = scroller.scrollTopMax; +is(scroller.scrollTop, scroller.scrollTopMax, "Should've scrolled"); + +const origWidth = scroller.offsetWidth; +const utils = SpecialPowers.DOMWindowUtils; + +// Take control of the refresh driver +utils.advanceTimeAndRefresh(0); + +// Force the next reflow to get interrupted +utils.forceReflowInterrupt(); +scroller.style.width = "300px"; +utils.advanceTimeAndRefresh(0); + +isnot(scroller.scrollTop, 0, "Shouldn't have lost scroll position"); +isnot(scroller.offsetWidth, origWidth, "Should've had to reflow"); + +utils.restoreNormalRefresh(); +SimpleTest.finish(); +</script> |