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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 /gfx/layers/apz/test/mochitest/helper_drag_bug1719913.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-upstream.tar.xz firefox-esr-upstream.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/layers/apz/test/mochitest/helper_drag_bug1719913.html')
| -rw-r--r-- | gfx/layers/apz/test/mochitest/helper_drag_bug1719913.html | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/gfx/layers/apz/test/mochitest/helper_drag_bug1719913.html b/gfx/layers/apz/test/mochitest/helper_drag_bug1719913.html new file mode 100644 index 0000000000..36192aed6d --- /dev/null +++ b/gfx/layers/apz/test/mochitest/helper_drag_bug1719913.html @@ -0,0 +1,91 @@ +<!DOCTYPE HTML> +<html> +<head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width; initial-scale=1.0"> + <title>Test for bug 1719913</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 subframe = document.getElementById("scroller"); + let scrollPromise = new Promise(resolve => { + subframe.addEventListener("scroll", resolve, {once: true}); + }); + + // Scroll down a small amount (5px). The bug in this case is that the + // scrollthumb "jumps" further down the scroll track because with the bug, + // incorrect location of a transform in the WebRender scroll nodes results + // in a miscalculation of the scroll position corresponding to a mouse event + // position during dragging. + var dragFinisher = await promiseVerticalScrollbarDrag(subframe, 5, 5); + 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(); + + // The expected scroll position from the 5px of dragging, based on local + // testing, is 49px. With the bug, it's 1038px. We check that it's < 100 + // which should rule out the bug while allowing for minor variations in + // scrollbar sizing etc. + ok(subframe.scrollTop < 100, "Scrollbar drag resulted in a scroll position of " + subframe.scrollTop); +} + +waitUntilApzStable() +.then(test) +.then(subtestDone, subtestFailed); + + </script> + <style> + .columns { + position: absolute; + top: 0; + right: 0; + bottom: 0; + left: 0; + overflow: auto; + } + .column { + position: relative; + width: 50%; + height: 500px; + } + .header { + height: 100px; + } + .scroller { + overflow: auto; + will-change: transform; + height: 100%; + } + .content { + height: 5000px; + width: 100%; + background: linear-gradient(green, blue); + } + </style> +</head> +<body> + <div class="columns"> + <div class="column"> + <div class="header"></div> + <div class="scroller" id="scroller"> + <div class="content"></div> + </div> + </div> + <div class="column"></div> + </div> +</body> +</html> |