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const TEST_URL = "http://www.example.com/browser/dom/tests/browser/dummy.html";
function pageScript() {
window.addEventListener("beforeunload", function (event) {
var str = "Leaving?";
event.returnValue = str;
return str;
}, true);
}
function frameScript() {
content.window.addEventListener("beforeunload", function (event) {
sendAsyncMessage("Test:OnBeforeUnloadReceived");
var str = "Leaving?";
event.returnValue = str;
return str;
}, true);
}
// Wait for onbeforeunload dialog, and dismiss it immediately.
function awaitAndCloseBeforeUnloadDialog(doStayOnPage) {
return new Promise(resolve => {
function onDialogShown(node) {
Services.obs.removeObserver(onDialogShown, "tabmodal-dialog-loaded");
let button = doStayOnPage ? node.ui.button1 : node.ui.button0;
button.click();
resolve();
}
Services.obs.addObserver(onDialogShown, "tabmodal-dialog-loaded");
});
}
SpecialPowers.pushPrefEnv(
{"set": [["dom.require_user_interaction_for_beforeunload", false]]});
/**
* Test navigation from a content page to a chrome page. Also check that only
* one beforeunload event is fired.
*/
add_task(function* () {
let beforeUnloadCount = 0;
messageManager.addMessageListener("Test:OnBeforeUnloadReceived", function() {
beforeUnloadCount++;
});
// Open a content page.
let tab = yield BrowserTestUtils.openNewForegroundTab(gBrowser, TEST_URL);
let browser = tab.linkedBrowser;
ok(browser.isRemoteBrowser, "Browser should be remote.");
browser.messageManager.loadFrameScript(
"data:,(" + frameScript.toString() + ")();", true);
// Navigate to a chrome page.
let dialogShown1 = awaitAndCloseBeforeUnloadDialog(false);
yield BrowserTestUtils.loadURI(browser, "about:support");
yield Promise.all([
dialogShown1,
BrowserTestUtils.browserLoaded(browser)
]);
is(beforeUnloadCount, 1, "Should have received one beforeunload event.");
ok(!browser.isRemoteBrowser, "Browser should not be remote.");
// Go back to content page.
ok(gBrowser.webNavigation.canGoBack, "Should be able to go back.");
gBrowser.goBack();
yield BrowserTestUtils.browserLoaded(browser);
browser.messageManager.loadFrameScript(
"data:,(" + frameScript.toString() + ")();", true);
// Test that going forward triggers beforeunload prompt as well.
ok(gBrowser.webNavigation.canGoForward, "Should be able to go forward.");
let dialogShown2 = awaitAndCloseBeforeUnloadDialog(false);
gBrowser.goForward();
yield Promise.all([
dialogShown2,
BrowserTestUtils.browserLoaded(browser)
]);
is(beforeUnloadCount, 2, "Should have received two beforeunload events.");
yield BrowserTestUtils.removeTab(tab);
});
/**
* Test navigation from a chrome page to a content page. Also check that only
* one beforeunload event is fired.
*/
add_task(function* () {
let beforeUnloadCount = 0;
messageManager.addMessageListener("Test:OnBeforeUnloadReceived", function() {
beforeUnloadCount++;
});
// Open a chrome page.
let tab = yield BrowserTestUtils.openNewForegroundTab(gBrowser,
"about:support");
let browser = tab.linkedBrowser;
ok(!browser.isRemoteBrowser, "Browser should not be remote.");
yield ContentTask.spawn(browser, null, function* () {
content.window.addEventListener("beforeunload", function (event) {
sendAsyncMessage("Test:OnBeforeUnloadReceived");
var str = "Leaving?";
event.returnValue = str;
return str;
}, true);
});
// Navigate to a content page.
let dialogShown1 = awaitAndCloseBeforeUnloadDialog(false);
yield BrowserTestUtils.loadURI(browser, TEST_URL);
yield Promise.all([
dialogShown1,
BrowserTestUtils.browserLoaded(browser)
]);
is(beforeUnloadCount, 1, "Should have received one beforeunload event.");
ok(browser.isRemoteBrowser, "Browser should be remote.");
// Go back to chrome page.
ok(gBrowser.webNavigation.canGoBack, "Should be able to go back.");
gBrowser.goBack();
yield BrowserTestUtils.browserLoaded(browser);
yield ContentTask.spawn(browser, null, function* () {
content.window.addEventListener("beforeunload", function (event) {
sendAsyncMessage("Test:OnBeforeUnloadReceived");
var str = "Leaving?";
event.returnValue = str;
return str;
}, true);
});
// Test that going forward triggers beforeunload prompt as well.
ok(gBrowser.webNavigation.canGoForward, "Should be able to go forward.");
let dialogShown2 = awaitAndCloseBeforeUnloadDialog(false);
gBrowser.goForward();
yield Promise.all([
dialogShown2,
BrowserTestUtils.browserLoaded(browser)
]);
is(beforeUnloadCount, 2, "Should have received two beforeunload events.");
yield BrowserTestUtils.removeTab(tab);
});
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