89 lines
2.2 KiB
HTML
89 lines
2.2 KiB
HTML
<!DOCTYPE HTML>
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<html>
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width; initial-scale=1.0">
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<title>Dragging the scrollbar on a page with a fixed-positioned element just past the right edge of the content</title>
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<script type="application/javascript" src="apz_test_native_event_utils.js"></script>
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<script type="application/javascript" src="apz_test_utils.js"></script>
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<script src="/tests/SimpleTest/paint_listener.js"></script>
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<style>
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body {
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height: 2000px;
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}
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#fixed {
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width: 240px;
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height: 100%;
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position: fixed;
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top: 0px;
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right: -240px;
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z-index: 1000;
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overflow-y: scroll;
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}
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#fixed-content {
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height: 2000px;
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}
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</style>
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<script type="text/javascript">
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async function test() {
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var root = document.scrollingElement;
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var scrollPos = root.scrollTop;
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var scrollPromise = new Promise((resolve) => {
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document.addEventListener("scroll", () => {
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ok(root.scrollTop > scrollPos, "document scrolled after dragging scrollbar");
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resolve();
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}, {once: true});
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});
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if (window.innerWidth == root.clientWidth) {
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// No scrollbar, abort the test. This can happen e.g. on local macOS runs
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// with OS settings to only show scrollbars on trackpad/mouse activity.
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ok(false, "No scrollbars found, cannot run this test!");
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return;
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}
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var scrollbarX = (window.innerWidth + root.clientWidth) / 2;
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// Move the mouse to the scrollbar
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await promiseNativeMouseEventWithAPZ({
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target: root,
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offsetX: scrollbarX,
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offsetY: 100,
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type: "mousemove",
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});
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// mouse down
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await promiseNativeMouseEventWithAPZ({
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target: root,
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offsetX: scrollbarX,
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offsetY: 100,
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type: "mousedown",
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});
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// drag vertically
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await promiseNativeMouseEventWithAPZ({
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target: root,
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offsetX: scrollbarX,
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offsetY: 150,
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type: "mousemove",
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});
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// wait for the scroll listener to fire
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await scrollPromise;
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// and release
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await promiseNativeMouseEventWithAPZ({
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target: root,
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offsetX: scrollbarX,
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offsetY: 150,
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type: "mouseup",
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});
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}
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waitUntilApzStable()
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.then(test)
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.then(subtestDone, subtestFailed);
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</script>
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</head>
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<body>
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<div id="fixed">
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<p id="fixed-content"></p>
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</div>
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</body>
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</html>
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