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"use strict";
const TEST_PAGE = "http://mochi.test:8888/browser/browser/base/content/test/general/file_double_close_tab.html";
var testTab;
SpecialPowers.pushPrefEnv({"set": [["dom.require_user_interaction_for_beforeunload", false]]});
function waitForDialog(callback) {
function onTabModalDialogLoaded(node) {
Services.obs.removeObserver(onTabModalDialogLoaded, "tabmodal-dialog-loaded");
callback(node);
}
// Listen for the dialog being created
Services.obs.addObserver(onTabModalDialogLoaded, "tabmodal-dialog-loaded", false);
}
function waitForDialogDestroyed(node, callback) {
// Now listen for the dialog going away again...
let observer = new MutationObserver(function(muts) {
if (!node.parentNode) {
ok(true, "Dialog is gone");
done();
}
});
observer.observe(node.parentNode, {childList: true});
let failureTimeout = setTimeout(function() {
ok(false, "Dialog should have been destroyed");
done();
}, 10000);
function done() {
clearTimeout(failureTimeout);
observer.disconnect();
observer = null;
callback();
}
}
add_task(function*() {
testTab = gBrowser.selectedTab = gBrowser.addTab();
yield promiseTabLoadEvent(testTab, TEST_PAGE);
// XXXgijs the reason this has nesting and callbacks rather than promises is
// that DOM promises resolve on the next tick. So they're scheduled
// in an event queue. So when we spin a new event queue for a modal dialog...
// everything gets messed up and the promise's .then callbacks never get
// called, despite resolve() being called just fine.
yield new Promise(resolveOuter => {
waitForDialog(dialogNode => {
waitForDialogDestroyed(dialogNode, () => {
let doCompletion = () => setTimeout(resolveOuter, 0);
info("Now checking if dialog is destroyed");
ok(!dialogNode.parentNode, "onbeforeunload dialog should be gone.");
if (dialogNode.parentNode) {
// Failed to remove onbeforeunload dialog, so do it ourselves:
let leaveBtn = dialogNode.ui.button0;
waitForDialogDestroyed(dialogNode, doCompletion);
EventUtils.synthesizeMouseAtCenter(leaveBtn, {});
return;
}
doCompletion();
});
// Click again:
document.getAnonymousElementByAttribute(testTab, "anonid", "close-button").click();
});
// Click once:
document.getAnonymousElementByAttribute(testTab, "anonid", "close-button").click();
});
yield promiseWaitForCondition(() => !testTab.parentNode);
ok(!testTab.parentNode, "Tab should be closed completely");
});
registerCleanupFunction(function() {
if (testTab.parentNode) {
// Remove the handler, or closing this tab will prove tricky:
try {
testTab.linkedBrowser.contentWindow.onbeforeunload = null;
} catch (ex) {}
gBrowser.removeTab(testTab);
}
});
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