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Test Info:
/* Any copyright is dedicated to the Public Domain.
"use strict";
const { PromiseTestUtils } = ChromeUtils.importESModule(
);
/**
* Check that the next synchronous window-internal modal prompt aborts rather
* than leaving us in a deadlock about how to enter modal state.
*/
add_task(async function test_check_multiple_prompts() {
let container = document.getElementById("window-modal-dialog");
let dialogPromise = BrowserTestUtils.promiseAlertDialogOpen();
let firstDialogClosedPromise = new Promise(resolve => {
// Avoid blocking the test on the (sync) alert by sticking it in a timeout:
setTimeout(() => {
Services.prompt.alertBC(
window.browsingContext,
Ci.nsIPrompt.MODAL_TYPE_WINDOW,
"Some title",
"some message"
);
resolve();
}, 0);
});
let dialogWin = await dialogPromise;
// Check circumstances of opening.
ok(
!dialogWin.docShell.chromeEventHandler,
"Should not have embedded the dialog."
);
PromiseTestUtils.expectUncaughtRejection(/could not be shown/);
let rv = Services.prompt.confirm(
window,
"I should not appear",
"because another prompt was open"
);
is(rv, false, "Prompt should have been canceled.");
info("Accepting dialog");
dialogWin.document.querySelector("dialog").acceptDialog();
await firstDialogClosedPromise;
await BrowserTestUtils.waitForMutationCondition(
container,
{ childList: true, attributes: true },
() => !container.hasChildNodes() && !container.open
);
});