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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:44:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-21 11:44:51 +0000 |
| commit | 9e3c08db40b8916968b9f30096c7be3f00ce9647 (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /gfx/layers/apz/test/mochitest/helper_bug1662800.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_bug1662800.html')
| -rw-r--r-- | gfx/layers/apz/test/mochitest/helper_bug1662800.html | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/gfx/layers/apz/test/mochitest/helper_bug1662800.html b/gfx/layers/apz/test/mochitest/helper_bug1662800.html new file mode 100644 index 0000000000..eb804a40f6 --- /dev/null +++ b/gfx/layers/apz/test/mochitest/helper_bug1662800.html @@ -0,0 +1,61 @@ +<!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 scrollframe inside nested transforms with a scale component</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 (7px). The bug in this case is that the + // scrollthumb "jumps" most of the way down the scroll track because with + // the bug, the code was incorrectly combining the transforms. + // Given the scrollable height of 0.7*2000px and scrollframe height of 0.7*400px, + // the scrollthumb should be approximately 0.7*80px = 56px tall. Dragging it 7px + // should scroll approximately 50 (unscaled) pixels. If the bug manifests, it will get + // dragged by a lot more and scroll to approximately 1300px. + var dragFinisher = await promiseVerticalScrollbarDrag(scrollableDiv, 7, 7, 0.7); + 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(); + + // Ensure the scroll position ended up roughly where we wanted it (around + // 50px, but definitely less than 1300px). + 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="width: 500px; height: 300px; transform: translate(500px, 500px) scale(0.7)"> + <div id="scrollable" style="transform: translate(-600px, -600px); overflow: scroll"> + <div style="width: 600px; height: 400px"> + <div style="width: 600px; height: 2000px; background-image: linear-gradient(red,blue)"></div> + </div> + </div> + </div> +</body> +</html> |