Bug 1280667 - Add a test. r?botond
MozReview-Commit-ID: 6yJrmnZdbBu
new file mode 100644
--- /dev/null
+++ b/gfx/layers/apz/test/mochitest/helper_drag_scroll.html
@@ -0,0 +1,603 @@
+<!DOCTYPE HTML>
+<html>
+<head>
+ <meta charset="utf-8">
+ <meta name="viewport" content="width=device-width; initial-scale=1.0">
+ <title>Dragging the mouse on a content-implemented scrollbar</title>
+ <script type="application/javascript" src="apz_test_native_event_utils.js"></script>
+ <script type="application/javascript" src="apz_test_utils.js"></script>
+ <script type="application/javascript" src="/tests/SimpleTest/paint_listener.js"></script>
+ <style>
+ body {
+ background: linear-gradient(135deg, red, blue);
+ }
+ #scrollbar {
+ position:fixed;
+ top: 0;
+ right: 10px;
+ height: 100%;
+ width: 150px;
+ background-color: gray;
+ }
+ </style>
+ <script type="text/javascript">
+var bar = null;
+var mouseDown = false;
+
+function moveTo(mouseY, testDriver) {
+ var fraction = (mouseY - bar.getBoundingClientRect().top) / bar.getBoundingClientRect().height;
+ fraction = Math.max(0, fraction);
+ fraction = Math.min(1, fraction);
+ var oldScrollPos = document.scrollingElement.scrollTop;
+ var newScrollPos = fraction * window.scrollMaxY;
+ SimpleTest.ok(newScrollPos > oldScrollPos, "Scroll position strictly increased");
+ // split the scroll in two with a paint in between, just to increase the
+ // complexity of the simulated web content, and to ensure this works as well.
+ document.scrollingElement.scrollTop = (oldScrollPos + newScrollPos) / 2;
+ waitForAllPaints(function() {
+ document.scrollingElement.scrollTop = newScrollPos;
+ testDriver();
+ });
+}
+
+function setupDragging(testDriver) {
+ bar = document.getElementById('scrollbar');
+ mouseDown = false;
+
+ bar.addEventListener('mousedown', function(e) {
+ mouseDown = true;
+ moveTo(e.clientY, testDriver);
+ }, true);
+
+ bar.addEventListener('mousemove', function(e) {
+ if (mouseDown) {
+ dump("Got mousemove clientY " + e.clientY + "\n");
+ moveTo(e.clientY, testDriver);
+ e.stopPropagation();
+ }
+ }, true);
+
+ bar.addEventListener('mouseup', function(e) {
+ mouseDown = false;
+ }, true);
+
+ window.addEventListener('mousemove', function(e) {
+ if (mouseDown) {
+ SimpleTest.ok(false, "The mousemove at " + e.clientY + " was not stopped by the bar listener, and is a glitchy event!");
+ setTimeout(testDriver, 0);
+ }
+ }, false);
+}
+
+function* test(testDriver) {
+ setupDragging(testDriver);
+
+ // Move the mouse to the "scrollbar" (the div upon which dragging changes scroll position)
+ yield synthesizeNativeMouseEvent(bar, 10, 10, nativeMouseMoveEventMsg(), testDriver);
+ // mouse down
+ yield synthesizeNativeMouseEvent(bar, 10, 10, nativeMouseDownEventMsg());
+ // drag vertically by 400px, in 50px increments
+ yield synthesizeNativeMouseEvent(bar, 10, 60, nativeMouseMoveEventMsg());
+ yield synthesizeNativeMouseEvent(bar, 10, 110, nativeMouseMoveEventMsg());
+ yield synthesizeNativeMouseEvent(bar, 10, 160, nativeMouseMoveEventMsg());
+ yield synthesizeNativeMouseEvent(bar, 10, 210, nativeMouseMoveEventMsg());
+ yield synthesizeNativeMouseEvent(bar, 10, 260, nativeMouseMoveEventMsg());
+ yield synthesizeNativeMouseEvent(bar, 10, 310, nativeMouseMoveEventMsg());
+ yield synthesizeNativeMouseEvent(bar, 10, 360, nativeMouseMoveEventMsg());
+ yield synthesizeNativeMouseEvent(bar, 10, 410, nativeMouseMoveEventMsg());
+ // and release
+ yield synthesizeNativeMouseEvent(bar, 10, 410, nativeMouseUpEventMsg(), testDriver);
+}
+
+waitUntilApzStable()
+.then(runContinuation(test))
+.then(subtestDone);
+
+ </script>
+</head>
+<body>
+
+<div id="scrollbar">Drag up and down on this bar. The background/scrollbar shouldn't glitch</div>
+This is a tall page<br/>
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+</body>
+</html>
--- a/gfx/layers/apz/test/mochitest/mochitest.ini
+++ b/gfx/layers/apz/test/mochitest/mochitest.ini
@@ -17,16 +17,17 @@ support-files =
helper_tap_passive.html
helper_click.html
helper_drag_click.html
helper_bug1271432.html
helper_touch_action.html
helper_touch_action_regions.html
helper_scroll_inactive_perspective.html
helper_scroll_inactive_zindex.html
+ helper_drag_scroll.html
tags = apz
[test_bug982141.html]
[test_bug1151663.html]
[test_bug1277814.html]
skip-if = (os == 'android') || (os == 'b2g') || (buildapp == 'mulet') # wheel events not supported on mobile; see bug 1164274 for mulet
[test_wheel_scroll.html]
skip-if = (os == 'android') || (os == 'b2g') || (buildapp == 'mulet') # wheel events not supported on mobile; see bug 1164274 for mulet
[test_wheel_transactions.html]
--- a/gfx/layers/apz/test/mochitest/test_group_mouseevents.html
+++ b/gfx/layers/apz/test/mochitest/test_group_mouseevents.html
@@ -10,17 +10,19 @@
var subtests = [
// Sanity test to synthesize a mouse click
{'file': 'helper_click.html?dtc=false'},
// Same as above, but with a dispatch-to-content region that exercises the
// main-thread notification codepaths for mouse events
{'file': 'helper_click.html?dtc=true'},
// Sanity test for click but with some mouse movement between the down and up
- {'file': 'helper_drag_click.html'}
+ {'file': 'helper_drag_click.html'},
+ // Test for dragging on a fake-scrollbar element that scrolls the page
+ {'file': 'helper_drag_scroll.html'}
];
if (isApzEnabled()) {
SimpleTest.waitForExplicitFinish();
window.onload = function() {
runSubtestsSeriallyInFreshWindows(subtests)
.then(SimpleTest.finish);
};