64 lines
1.9 KiB
JavaScript
64 lines
1.9 KiB
JavaScript
const { PromptTestUtils } = ChromeUtils.importESModule(
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"resource://testing-common/PromptTestUtils.sys.mjs"
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);
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function pageScript() {
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window.addEventListener(
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"beforeunload",
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function (event) {
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var str = "Some text that causes the beforeunload dialog to be shown";
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event.returnValue = str;
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return str;
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},
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true
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);
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}
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SpecialPowers.pushPrefEnv({
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set: [["dom.require_user_interaction_for_beforeunload", false]],
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});
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const PAGE_URL =
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"data:text/html," +
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encodeURIComponent("<script>(" + pageScript.toSource() + ")();</script>");
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add_task(async function enableDialogs() {
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// The onbeforeunload dialog should appear.
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let dialogPromise = PromptTestUtils.waitForPrompt(null, {
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modalType: Services.prompt.MODAL_TYPE_CONTENT,
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promptType: "confirmEx",
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});
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let openPagePromise = openPage(true);
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let dialog = await dialogPromise;
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Assert.ok(true, "Showed the beforeunload dialog.");
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await PromptTestUtils.handlePrompt(dialog, { buttonNumClick: 0 });
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await openPagePromise;
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});
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add_task(async function disableDialogs() {
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// The onbeforeunload dialog should NOT appear.
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await openPage(false);
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info("If we time out here, then the dialog was shown...");
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});
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async function openPage(enableDialogs) {
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// Open about:blank in a new tab.
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await BrowserTestUtils.withNewTab(
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{ gBrowser, url: "about:blank" },
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async function (browser) {
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// Load the page.
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BrowserTestUtils.startLoadingURIString(browser, PAGE_URL);
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await BrowserTestUtils.browserLoaded(browser);
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// Load the content script in the frame.
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let methodName = enableDialogs ? "enableDialogs" : "disableDialogs";
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await SpecialPowers.spawn(browser, [methodName], async function (name) {
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content.windowUtils[name]();
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});
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// And then navigate away.
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BrowserTestUtils.startLoadingURIString(browser, "http://example.com/");
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await BrowserTestUtils.browserLoaded(browser);
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}
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);
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}
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