diff options
Diffstat (limited to 'gfx/layers/apz/test/mochitest/browser_test_scroll_thumb_dragging.js')
-rw-r--r-- | gfx/layers/apz/test/mochitest/browser_test_scroll_thumb_dragging.js | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/gfx/layers/apz/test/mochitest/browser_test_scroll_thumb_dragging.js b/gfx/layers/apz/test/mochitest/browser_test_scroll_thumb_dragging.js new file mode 100644 index 0000000000..bd2d733a32 --- /dev/null +++ b/gfx/layers/apz/test/mochitest/browser_test_scroll_thumb_dragging.js @@ -0,0 +1,77 @@ +add_task(async function () { + function httpURL(filename) { + let chromeURL = getRootDirectory(gTestPath) + filename; + return chromeURL.replace( + "chrome://mochitests/content/", + "http://mochi.test:8888/" + ); + } + + const newWin = await BrowserTestUtils.openNewBrowserWindow(); + + const pageUrl = httpURL("helper_scroll_thumb_dragging.html"); + const tab = await BrowserTestUtils.openNewForegroundTab( + newWin.gBrowser, + pageUrl + ); + + await SpecialPowers.spawn(tab.linkedBrowser, [], async () => { + await content.wrappedJSObject.promiseApzFlushedRepaints(); + await content.wrappedJSObject.waitUntilApzStable(); + }); + + // Send an explicit click event to make sure the new window accidentally + // doesn't get an "enter-notify-event" on Linux during dragging, the event + // forcibly cancels the dragging state. + await SpecialPowers.spawn(tab.linkedBrowser, [], async () => { + // Creating an object in this content privilege so that the object + // properties can be accessed in below + // promiseNativeMouseEventWithAPZAndWaitForEvent function. + const moveParams = content.window.eval(`({ + target: window, + type: "mousemove", + offsetX: 10, + offsetY: 10 + })`); + const clickParams = content.window.eval(`({ + target: window, + type: "click", + offsetX: 10, + offsetY: 10 + })`); + // Send a mouse move event first to make sure the "enter-notify-event" + // happens. + await content.wrappedJSObject.promiseNativeMouseEventWithAPZAndWaitForEvent( + moveParams + ); + await content.wrappedJSObject.promiseNativeMouseEventWithAPZAndWaitForEvent( + clickParams + ); + }); + + await SpecialPowers.spawn(tab.linkedBrowser, [], async () => { + const scrollPromise = new Promise(resolve => { + content.window.addEventListener("scroll", resolve, { once: true }); + }); + const dragFinisher = + await content.wrappedJSObject.promiseVerticalScrollbarDrag( + content.window, + 10, + 10 + ); + + await scrollPromise; + await dragFinisher(); + + await content.wrappedJSObject.promiseApzFlushedRepaints(); + }); + + await SpecialPowers.spawn(tab.linkedBrowser, [], async () => { + ok( + content.window.scrollY < 100, + "The root scrollable content shouldn't be scrolled too much" + ); + }); + + await BrowserTestUtils.closeWindow(newWin); +}); |