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Bug 1701597. Add test. r=botond 

Differential Revision: https://phabricator.services.mozilla.com/D111087
This commit is contained in:
Timothy Nikkel 2021-04-08 06:51:40 +00:00
Родитель 8a3c4a2200
Коммит 6fcb1a96eb
2 изменённых файлов: 74 добавлений и 0 удалений
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67
gfx/layers/apz/test/mochitest/helper_doubletap_zoom_horizontal_center.html Normal file
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@ -0,0 +1,67 @@
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=2100"/>
<title>Check that double tapping an element that doesn't fill the width of the viewport as maximum zoom centers it</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 doubleTapOn(element, x, y) {
let useTouchpad = (location.search == "?touchpad");
let transformEndPromise = promiseTransformEnd();
if (useTouchpad) {
synthesizeNativeTouchpadDoubleTap(element, x, y);
} else {
synthesizeNativeTap(element, x, y);
synthesizeNativeTap(element, x, y);
}
// Wait for the APZ:TransformEnd to fire
await transformEndPromise;
// Flush state so we can query an accurate resolution
await promiseOnlyApzControllerFlushed();
}
async function test() {
var resolution = 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);
var prev_resolution = resolution;
resolution = getResolution();
ok(resolution > 2*prev_resolution, "The first double-tap has increased the resolution to " + resolution);
info("window.innerWidth " + window.innerWidth); // value when writing this test: 1280
info("visualViewport.offsetLeft " + visualViewport.offsetLeft); //value when writing this test: 625 with bug, 537 with fix
info("visualViewport.width " + visualViewport.width); // value when writing this test: 253
// the left hand edge of the div is at window.innerWidth/2
// we want approximately half of the visual viewport width to be to the left of that point.
// we have to remove the 50 pixels for the width of the div from that first though.
// we multiply that by 80% to factor in the 15 pixel margin we give the zoomed-to element
// (we don't hard code 15 though since we might want to tweak that)
ok(visualViewport.offsetLeft < window.innerWidth/2 - 0.8*(visualViewport.width-50)/2, "moved over far enough");
// and then have a sanity check that it's not too small.
// using the same 20% factor as before but in the other direction.
ok(visualViewport.offsetLeft > window.innerWidth/2 - 1.2*(visualViewport.width-50)/2, "but not too far");
}
waitUntilApzStable()
.then(test)
.then(subtestDone, subtestFailed);
</script>
</head>
<body>
<div id="target" style="background: blue; width: 50px; height: 50px; position: absolute; left: 50vw;"></div>
</body>
</html>

7
gfx/layers/apz/test/mochitest/test_group_double_tap_zoom.html
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@ -17,10 +17,16 @@ var doubletap_prefs = [
["apz.mac.enable_double_tap_zoom_touchpad_gesture", true],
];
var visualviewport_and_doubletap_prefs = [
...doubletap_prefs,
["dom.visualviewport.enabled", true],
];
var subtests = [
{"file": "helper_touchscreen_doubletap_zoom.html", "prefs": doubletap_prefs},
{"file": "helper_doubletap_zoom_img.html", "prefs": doubletap_prefs},
{"file": "helper_doubletap_zoom_textarea.html", "prefs": doubletap_prefs},
{"file": "helper_doubletap_zoom_horizontal_center.html", "prefs": visualviewport_and_doubletap_prefs},
];
if (getPlatform() == "mac") {
@ -28,6 +34,7 @@ if (getPlatform() == "mac") {
{"file": "helper_touchpad_doubletap_zoom.html", "prefs": doubletap_prefs},
{"file": "helper_doubletap_zoom_img.html?touchpad", "prefs": doubletap_prefs},
{"file": "helper_doubletap_zoom_textarea.html?touchpad", "prefs": doubletap_prefs},
{"file": "helper_doubletap_zoom_horizontal_center.html?touchpad", "prefs": visualviewport_and_doubletap_prefs},
);
}