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Diffstat (limited to 'gfx/layers/apz/test/mochitest/helper_doubletap_zoom_hscrollable.html')
-rw-r--r-- | gfx/layers/apz/test/mochitest/helper_doubletap_zoom_hscrollable.html | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/gfx/layers/apz/test/mochitest/helper_doubletap_zoom_hscrollable.html b/gfx/layers/apz/test/mochitest/helper_doubletap_zoom_hscrollable.html new file mode 100644 index 0000000000..21c3fb7e70 --- /dev/null +++ b/gfx/layers/apz/test/mochitest/helper_doubletap_zoom_hscrollable.html @@ -0,0 +1,85 @@ +<!DOCTYPE HTML> +<html> +<head> + <meta charset="utf-8"> + <meta name="viewport" content="width=2100"/> + <title>Check that tall element wider than the viewport doesn't scroll to the top</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"> + +// Although this test has hscrollable in the name, it does not test any +// horizontal scrolling. Rather it is the mere presence of horizontally +// scrollable content that triggers this bug (it confused the code that +// picked a rect to zoom to). + +async function test() { + let useTouchpad = (location.search == "?touchpad"); + + let resolution = await getResolution(); + ok(resolution > 0, + "The initial_resolution is " + resolution + ", which is some sane value"); + + // instant scroll down + window.scrollTo({ + top: window.innerHeight * 2, + left: 0, + behavior: 'auto' + }); + + await promiseApzFlushedRepaints(); + + let scrollPos = window.scrollY; + ok(scrollPos > window.innerHeight * 2 - 50, "window scrolled down"); + + info("window.scrollY " + window.scrollY); + + info("window.innerHeight " + window.innerHeight); + + info("document.documentElement.scrollHeight " + document.documentElement.scrollHeight); + + let target = document.getElementById("target"); + + let x = 20; + let y = scrollPos + window.innerHeight / 2; + + // Check that second double tap does not scroll up + info("sending second double tap"); + await doubleTapOn(target, x, y, useTouchpad); + prev_resolution = resolution; + resolution = await getResolution(); + ok(resolution == prev_resolution, "After double-tap the resolution is the same: " + resolution); + + ok(window.scrollY > window.innerHeight * 2 - 50, "window is still scrolled down"); + ok(Math.abs(window.scrollY - scrollPos) < 1, "window didnt scroll"); + info("window.scrollY " + window.scrollY); +} + +waitUntilApzStable() +.then(test) +.then(subtestDone, subtestFailed); + + </script> + <style> + .spacer { + background-color: #eee; + height: 800vh; + width: 200vw; + } + .rect { + width: 90vw; + height: 30px; + background-color: #aaa; + } +</style> +</head> +<body> +<div id="firsttarget" class="rect"> +</div> + +<div id="target" class="spacer"> +</div> + +</body> +</html> |