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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=2100"/>
<title>Check that double tapping on a square img doesn't cut off parts of the image</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");
let resolution = await getResolution();
let initial_resolution = resolution;
ok(resolution > 0,
"The initial_resolution is " + resolution + ", which is some sane value");
let target = document.getElementById("target");
// Check that double-tapping once on the element zooms in
info("sending first double tap");
await doubleTapOn(target, 20, 20, useTouchpad);
let prev_resolution = resolution;
resolution = await getResolution();
ok(resolution > prev_resolution, "The first double-tap has increased the resolution to " + resolution);
let rect = target.getBoundingClientRect();
ok(visualViewport.pageLeft < rect.x, "left");
ok(visualViewport.pageTop < rect.y, "top");
ok(visualViewport.pageLeft + visualViewport.width > rect.x + rect.width, "right");
ok(visualViewport.pageTop + visualViewport.height > rect.y + rect.height, "bottom");
// Check that double-tapping the second time on the element zooms out
info("sending second double tap");
await doubleTapOn(target, 20, 20, useTouchpad);
prev_resolution = resolution;
resolution = await getResolution();
ok(resolution < prev_resolution, "The second double-tap has decreased the resolution to " + resolution);
ok(resolution == initial_resolution, "The second double-tap has restored the resolution to " + resolution);
}
waitUntilApzStable()
.then(test)
.then(subtestDone, subtestFailed);
</script>
<style>
.bigsquare {
width: 40vh;
height: 40vh;
}
</style>
</head>
<body>
<img id="target" class="bigsquare" src="green100x100.png">
</body>
</html>
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