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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:44:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-21 11:44:51 +0000
commit9e3c08db40b8916968b9f30096c7be3f00ce9647 (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /gfx/layers/apz/test/mochitest/helper_bug1490393-2.html
parentInitial commit. (diff)
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Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!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</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" by an additional 40 pixels (height of the "gap" div)
+ // and the scrollframe scrolls by a corresponding amount. So after doing this
+ // drag we check the scroll position to make sure it hasn't scrolled by
+ // too much.
+ // 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 50px and scroll approximately 250px.
+ 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 id="gap" style="min-height: 40px"></div>
+ <div style="height: 400px; transform: translateZ(0)">
+ <div style="height: 100%; overflow-x: auto; overflow-y: hidden; transform: translateZ(0)">
+ <div id="scrollable" style="display: inline-block; height: 100%; overflow-y: auto; transform: translateZ(0)">
+ <div style="min-height: 2000px">Yay text</div>
+ </div>
+ <div style="display: inline-block; width: 2000px; height: 100%;"></div>
+ </div>
+ </div>
+</body>
+</html>