tenfourfox/devtools/client/netmonitor/test/browser_net_autoscroll.js
Cameron Kaiser c9b2922b70 hello FPR
2017-04-19 00:56:45 -07:00

87 lines
3.2 KiB
JavaScript

/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
///////////////////
//
// Whitelisting this test.
// As part of bug 1077403, the leaking uncaught rejection should be fixed.
//
thisTestLeaksUncaughtRejectionsAndShouldBeFixed("TypeError: aValue.content is undefined");
/**
* Bug 863102 - Automatically scroll down upon new network requests.
*/
add_task(function*() {
requestLongerTimeout(2);
let monitor, debuggee, requestsContainer, scrollTop;
let [aTab, aDebuggee, aMonitor] = yield initNetMonitor(INFINITE_GET_URL);
monitor = aMonitor;
debuggee = aDebuggee;
let win = monitor.panelWin;
let topNode = win.document.getElementById("requests-menu-contents");
requestsContainer = topNode.getElementsByTagName("scrollbox")[0];
ok(!!requestsContainer, "Container element exists as expected.");
// (1) Check that the scroll position is maintained at the bottom
// when the requests overflow the vertical size of the container.
yield waitForRequestsToOverflowContainer(monitor, requestsContainer);
yield waitForScroll(monitor);
ok(scrolledToBottom(requestsContainer), "Scrolled to bottom on overflow.");
// (2) Now set the scroll position somewhere in the middle and check
// that additional requests do not change the scroll position.
let children = requestsContainer.childNodes;
let middleNode = children.item(children.length / 2);
middleNode.scrollIntoView();
ok(!scrolledToBottom(requestsContainer), "Not scrolled to bottom.");
scrollTop = requestsContainer.scrollTop; // save for comparison later
yield waitForNetworkEvents(monitor, 8);
yield waitSomeTime();
is(requestsContainer.scrollTop, scrollTop, "Did not scroll.");
// (3) Now set the scroll position back at the bottom and check that
// additional requests *do* cause the container to scroll down.
requestsContainer.scrollTop = requestsContainer.scrollHeight;
ok(scrolledToBottom(requestsContainer), "Set scroll position to bottom.");
yield waitForNetworkEvents(monitor, 8);
yield waitForScroll(monitor);
ok(scrolledToBottom(requestsContainer), "Still scrolled to bottom.");
// (4) Now select an item in the list and check that additional requests
// do not change the scroll position.
monitor.panelWin.NetMonitorView.RequestsMenu.selectedIndex = 0;
yield waitForNetworkEvents(monitor, 8);
yield waitSomeTime();
is(requestsContainer.scrollTop, 0, "Did not scroll.");
// Done: clean up.
yield teardown(monitor);
finish();
function waitForRequestsToOverflowContainer(aMonitor, aContainer) {
return waitForNetworkEvents(aMonitor, 1).then(() => {
if (aContainer.scrollHeight > aContainer.clientHeight) {
return promise.resolve();
} else {
return waitForRequestsToOverflowContainer(aMonitor, aContainer);
}
});
}
function scrolledToBottom(aElement) {
return aElement.scrollTop + aElement.clientHeight >= aElement.scrollHeight;
}
function waitSomeTime() {
let waitSomeTime = promise.defer();
setTimeout(waitSomeTime.resolve, 50); // Wait to make sure no scrolls happen
return waitSomeTime.promise;
}
function waitForScroll(aMonitor) {
return aMonitor._view.RequestsMenu.widget.once("scroll-to-bottom");
}
});