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Diffstat (limited to 'gfx/layers/apz/test/mochitest/helper_doubletap_zoom_noscroll.html')
-rw-r--r-- | gfx/layers/apz/test/mochitest/helper_doubletap_zoom_noscroll.html | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/gfx/layers/apz/test/mochitest/helper_doubletap_zoom_noscroll.html b/gfx/layers/apz/test/mochitest/helper_doubletap_zoom_noscroll.html new file mode 100644 index 0000000000..00e3638ba7 --- /dev/null +++ b/gfx/layers/apz/test/mochitest/helper_doubletap_zoom_noscroll.html @@ -0,0 +1,59 @@ +<!DOCTYPE HTML> +<html> +<head> + <meta charset="utf-8"> + <meta name="viewport" content="width=2100"/> + <title>Check that double tapping something tall that we are already zoomed to doesn't scroll (it zooms out)</title> + <script src="apz_test_native_event_utils.js"></script> + <script src="apz_test_utils.js"></script> + <script src="/tests/SimpleTest/paint_listener.js"></script> + <script> + +function within(a, b, tolerance) { + return (Math.abs(a-b) < tolerance); +} + +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"); + + ok(window.scrollY == 0, "window not scrolled"); + info("window.scrollY " + window.scrollY); + + // Check that double-tapping once zooms in + await doubleTapOn(document.getElementById("target"), 10, 10, useTouchpad); + let prev_resolution = resolution; + resolution = await getResolution(); + ok(resolution > prev_resolution, "The first double-tap has increased the resolution to " + resolution); + ok(window.scrollY == 0, "window not scrolled"); + info("window.scrollY " + window.scrollY); + + let x = document.getElementById("target").getBoundingClientRect().width/2; + let y = window.visualViewport.height - 20; + // Check that near the bottom doesn't scroll but zooms out + await doubleTapOn(document.getElementById("target"), x, y, useTouchpad); + prev_resolution = resolution; + resolution = await getResolution(); + ok(resolution < prev_resolution, "The second double-tap has decreased the resolution to " + resolution); + // slight float inaccuracy, not sure why + ok(within(resolution, initial_resolution, 0.0002), "The second double-tap has restored the resolution to " + resolution); + ok(window.scrollY == 0, "window not scrolled"); + info("window.scrollY " + window.scrollY); +} + +waitUntilApzStable() +.then(test) +.then(subtestDone, subtestFailed); + + </script> +</head> +<body> + +<div id="target" style="background: grey; width: 50vw; height: 300vh;"> + +</body> +</html> |