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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /gfx/layers/apz/test/mochitest/helper_bug1550510.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-upstream.tar.xz thunderbird-upstream.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/layers/apz/test/mochitest/helper_bug1550510.html')
| -rw-r--r-- | gfx/layers/apz/test/mochitest/helper_bug1550510.html | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/gfx/layers/apz/test/mochitest/helper_bug1550510.html b/gfx/layers/apz/test/mochitest/helper_bug1550510.html new file mode 100644 index 0000000000..2f3be5dd2c --- /dev/null +++ b/gfx/layers/apz/test/mochitest/helper_bug1550510.html @@ -0,0 +1,66 @@ +<!DOCTYPE HTML> +<html> +<head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width; initial-scale=1.0"> + <title>Dragging the mouse on a scrollbar for a transformed, filtered scrollframe</title> + <script type="application/javascript" src="apz_test_native_event_utils.js"></script> + <script type="application/javascript" src="apz_test_utils.js"></script> + <script src="/tests/SimpleTest/paint_listener.js"></script> + <script type="text/javascript"> + +async function test() { + var scrollableDiv = document.getElementById("scrollable"); + let scrollPromise = new Promise(resolve => { + scrollableDiv.addEventListener("scroll", resolve, {once: true}); + }); + + // Scroll down a small amount (10px). The bug in this case is that the + // scrollthumb "jumps" most of the way down the scroll track because with + // WR enabled the filter and transform display items combine to generate an + // incorrect APZC tree, and the mouse position gets untransformed incorrectly. + // Given the scrollable height of 2000px and scrollframe height of 400px, + // the scrollthumb should be approximately 80px tall, and dragging it 10px + // should scroll approximately 50 pixels. If the bug manifests, it will get + // dragged an extra ~150px and scroll to approximately 1250px. + var dragFinisher = await promiseVerticalScrollbarDrag(scrollableDiv, 10, 10); + if (!dragFinisher) { + ok(true, "No scrollbar, can't do this test"); + return; + } + + // the events above might be stuck in APZ input queue for a bit until the + // layer is activated, so we wait here until the scroll event listener is + // triggered. + await scrollPromise; + + await dragFinisher(); + + // Flush everything just to be safe + await promiseOnlyApzControllerFlushed(); + + // In this case we just want to make sure the scroll position moved from 0 + // which indicates the thumb dragging worked properly. + ok(scrollableDiv.scrollTop < 100, "Scrollbar drag resulted in a scroll position of " + scrollableDiv.scrollTop); +} + +waitUntilApzStable() +.then(test) +.then(subtestDone, subtestFailed); + + </script> +</head> +<body> + <div style="position: fixed; left: 100px; top: 100px; width: 400px; height: 600px"> + <div style="transform: translateY(150px); will-change: transform"> + <div style="filter: grayscale(80%)"> + <div id="scrollable" style="height: 400px; overflow-y: auto"> + <div style="min-height: 2000px"> + yay text + </div> + </div> + </div> + </div> + </div> +</body> +</html> |