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<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-actions.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="scroll_support.js"></script>
<style>
#targetDiv {
width: 200px;
height: 200px;
overflow: scroll;
}
#innerDiv {
width: 400px;
height: 400px;
}
</style>
</head>
<body style="margin:0" onload=runTest()>
<div id="targetDiv">
<div id="innerDiv">
</div>
</div>
</body>
<script>
var target_div = document.getElementById('targetDiv');
async function resetTargetScrollState(test) {
if (target_div.scrollTop != 0 || target_div.scrollLeft != 0) {
target_div.scrollTop = 0;
target_div.scrollLeft = 0;
return waitForScrollendEvent(test, target_div);
}
}
async function verifyScrollStopped(test) {
const unscaled_pause_time_in_ms = 100;
const x = target_div.scrollLeft;
const y = target_div.scrollTop;
return new Promise(resolve => {
test.step_timeout(() => {
assert_equals(x, target_div.scrollLeft);
assert_equals(y, target_div.scrollTop);
resolve();
}, unscaled_pause_time_in_ms);
});
}
async function verifyNoScrollendOnDocument(test) {
const callback =
test.unreached_func("window got unexpected scrollend event.");
window.addEventListener('scrollend', callback);
}
async function createScrollendPromise(test) {
return waitForScrollendEvent(test, target_div).then(evt => {
assert_false(evt.cancelable, 'Event is not cancelable');
assert_false(evt.bubbles, 'Event targeting element does not bubble');
});
}
function runTest() {
promise_test(async (t) => {
// Skip the test on a Mac as they do not support touch screens.
const isMac = navigator.platform.toUpperCase().indexOf('MAC')>=0;
if (isMac)
return;
await resetTargetScrollState(t);
await waitForCompositorCommit();
const targetScrollendPromise = createScrollendPromise(t);
verifyNoScrollendOnDocument(t);
// Perform a touch drag on target div and wait for target_div to get
// a scrollend event.
await new test_driver.Actions()
.addPointer('TestPointer', 'touch')
.pointerMove(0, 0, {origin: target_div}) // 0, 0 is center of element.
.pointerDown()
.addTick()
.pointerMove(0, -40, {origin: target_div}) // Drag up to move down.
.addTick()
.pause(200) // Prevent inertial scroll.
.pointerUp()
.send();
await targetScrollendPromise;
assert_true(target_div.scrollTop > 0);
await verifyScrollStopped(t);
}, 'Tests that the target_div gets scrollend event when touch dragging.');
promise_test(async (t) => {
// Skip test on platforms that do not have a visible scrollbar (e.g.
// overlay scrollbar).
const scrollbar_width = target_div.offsetWidth - target_div.clientWidth;
if (scrollbar_width == 0)
return;
await resetTargetScrollState(t);
await waitForCompositorCommit();
const targetScrollendPromise = createScrollendPromise(t);
verifyNoScrollendOnDocument(t);
const bounds = target_div.getBoundingClientRect();
const x = bounds.right - scrollbar_width / 2;
const y = bounds.bottom - 20;
await new test_driver.Actions()
.addPointer('TestPointer', 'mouse')
.pointerMove(x, y, {origin: 'viewport'})
.pointerDown()
.addTick()
.pointerUp()
.send();
await targetScrollendPromise;
assert_true(target_div.scrollTop > 0);
await verifyScrollStopped(t);
}, 'Tests that the target_div gets scrollend event when clicking ' +
'scrollbar.');
// Same issue as previous test.
promise_test(async (t) => {
// Skip test on platforms that do not have a visible scrollbar (e.g.
// overlay scrollbar).
const scrollbar_width = target_div.offsetWidth - target_div.clientWidth;
if (scrollbar_width == 0)
return;
resetTargetScrollState(t);
const targetScrollendPromise = createScrollendPromise(t);
verifyNoScrollendOnDocument(t);
const bounds = target_div.getBoundingClientRect();
const x = bounds.right - scrollbar_width / 2;
const y = bounds.top + 30;
const dy = 30;
await new test_driver.Actions()
.addPointer('TestPointer', 'mouse')
.pointerMove(x, y, { origin: 'viewport' })
.pointerDown()
.pointerMove(x, y + dy, { origin: 'viewport' })
.addTick()
.pointerUp()
.send();
await targetScrollendPromise;
assert_true(target_div.scrollTop > 0);
await verifyScrollStopped(t);
}, 'Tests that the target_div gets scrollend event when dragging the ' +
'scrollbar thumb.');
promise_test(async (t) => {
resetTargetScrollState(t);
const targetScrollendPromise = createScrollendPromise(t);
verifyNoScrollendOnDocument(t);
const x = 0;
const y = 0;
const dx = 0;
const dy = 40;
const duration_ms = 10;
await new test_driver.Actions()
.scroll(x, y, dx, dy, { origin: target_div }, duration_ms)
.send();
await targetScrollendPromise;
assert_true(target_div.scrollTop > 0);
await verifyScrollStopped(t);
}, 'Tests that the target_div gets scrollend event when mouse wheel ' +
'scrolling.');
promise_test(async (t) => {
await resetTargetScrollState(t);
await waitForCompositorCommit();
verifyNoScrollendOnDocument(t);
const targetScrollendPromise = createScrollendPromise(t);
target_div.focus();
window.test_driver.send_keys(target_div, '\ue015');
await targetScrollendPromise;
assert_true(target_div.scrollTop > 0);
await verifyScrollStopped(t);
}, 'Tests that the target_div gets scrollend event when sending DOWN key ' +
'to the target.');
}
</script>
</html>
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