Quelle helper_bug1271432.html Sprache: HTML

products/sources/formale Sprachen/C/Firefox/gfx/layers/apz/test/mochitest/helper_bug1271432.html

<head>
 <title>Ensure that the hit region doesn't get unexpectedly expanded
 <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="application/javascript">
async function test() {
 var scroller = document.getElementById("scroller");
 var scrollerPos = scroller.scrollTop;
 var dx = 100, dy = 50;

 is(window.scrollY, 0, "Initial page scroll position should be 0");
 is(scrollerPos, 0, "Initial scroller position should be 0");

 await promiseMoveMouseAndScrollWheelOver(scroller, dx, dy);

 is(window.scrollY, 0, "Page scroll position should still be 0");
 ok(scroller.scrollTop > scrollerPos, "Scroller should have scrolled");

 // wait for it to layerize fully and then try again
 await promiseAllPaintsDone();
 await promiseOnlyApzControllerFlushed();
 scrollerPos = scroller.scrollTop;

 await promiseMoveMouseAndScrollWheelOver(scroller, dx, dy);
 is(window.scrollY, 0, "Page scroll position should still be 0 after layerization");
 ok(scroller.scrollTop > scrollerPos, "Scroller should have continued scrolling");
}

waitUntilApzStable()
.then(test)
.then(subtestDone, subtestFailed);

</script>
<style>
a#with_after_content {
 background-color: #F16725;
 opacity: 0.8;
 display: inline-block;
 margin-top: 40px;
 margin-left: 40px;
}
a#with_after_content::after {
 content: " ";
 position: absolute;
 width: 0px;
 height: 0px;
 bottom: 40px;
 z-index: -1;
 right: 40px;
 background-color: transparent;
 border-style: solid;
 border-width: 15px 15px 15px 0;
 border-color: #d54e0e transparent transparent transparent;
 box-shadow: none;
 box-sizing: border-box;
}
div#scroller {
 overflow-y: scroll;
 width: 50%;
 height: 50%;
}
</style>
</head>
<body>
<a id="with_after_content">Some text</a>

<div id="scroller">
Scrolling on the very left edge of this div will work.
Scrolling on the right side of this div (starting with the left edge of the orange box above) should work, but doesn't.

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</div>
<div style="height: 1000px">this div makes the page scrollable</div>
</body>

Messung V0.5

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