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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=2100"/>
<title>Sanity check for double-tap zooming</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="application/javascript">
async function test() {
let useTouchpad = (location.search == "?touchpad");
var resolution = await getResolution();
ok(resolution > 0,
"The initial_resolution is " + resolution + ", which is some sane value");
// Check that double-tapping once zooms in
await doubleTapOn(document.getElementById("target"), 10, 10, useTouchpad);
var prev_resolution = resolution;
resolution = await getResolution();
ok(resolution > prev_resolution, "The first double-tap has increased the resolution to " + resolution);
// Check that double-tapping again on the same spot zooms out
await doubleTapOn(document.getElementById("target"), 10, 10, useTouchpad);
prev_resolution = resolution;
resolution = await getResolution();
ok(resolution < prev_resolution, "The second double-tap has decreased the resolution to " + resolution);
}
waitUntilApzStable()
.then(test)
.then(subtestDone, subtestFailed);
</script>
<style type="text/css">
.box {
width: 800px;
height: 500px;
margin: 0 auto;
}
</style>
</head>
<body>
<div class="box">Text before the div.</div>
<div id="target" style="margin-left: 100px; width:900px; height: 400px; background-image: linear-gradient(blue,red)"></div>
<div class="box">Text after the div.</div>
</body>
</html>
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