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"use strict";
/*
* This test triggers multiple alerts on one single tab, because it"s possible
* for web content to do so. The behavior is described in bug 1266353.
*
* We assert the presentation of the multiple alerts, ensuring we show only
* the oldest one.
*/
add_task(async function() {
await SpecialPowers.pushPrefEnv({
set: [["prompts.contentPromptSubDialog", false]],
});
const PROMPTCOUNT = 9;
let contentScript = function(MAX_PROMPT) {
var i = MAX_PROMPT;
let fns = ["alert", "prompt", "confirm"];
function openDialog() {
i--;
if (i) {
SpecialPowers.Services.tm.dispatchToMainThread(openDialog);
}
window[fns[i % 3]](fns[i % 3] + " countdown #" + i);
}
SpecialPowers.Services.tm.dispatchToMainThread(openDialog);
};
let url =
"data:text/html,<script>(" +
encodeURIComponent(contentScript.toSource()) +
")(" +
PROMPTCOUNT +
");</script>";
let promptsOpenedPromise = new Promise(function(resolve) {
let unopenedPromptCount = PROMPTCOUNT;
Services.obs.addObserver(function observer() {
unopenedPromptCount--;
if (!unopenedPromptCount) {
Services.obs.removeObserver(observer, "tabmodal-dialog-loaded");
info("Prompts opened.");
resolve();
}
}, "tabmodal-dialog-loaded");
});
let tab = await BrowserTestUtils.openNewForegroundTab(gBrowser, url, true);
info("Tab loaded");
await promptsOpenedPromise;
let promptElementsCount = PROMPTCOUNT;
while (promptElementsCount--) {
let promptElements = tab.linkedBrowser.parentNode.querySelectorAll(
"tabmodalprompt"
);
is(
promptElements.length,
promptElementsCount + 1,
"There should be " + (promptElementsCount + 1) + " prompt(s)."
);
// The oldest should be the first.
let i = 0;
for (let promptElement of promptElements) {
let prompt = tab.linkedBrowser.tabModalPromptBox.getPrompt(promptElement);
let expectedType = ["alert", "prompt", "confirm"][i % 3];
is(
prompt.Dialog.args.text,
expectedType + " countdown #" + i,
"The #" + i + " alert should be labelled as such."
);
if (i !== promptElementsCount) {
is(prompt.element.hidden, true, "This prompt should be hidden.");
i++;
continue;
}
is(prompt.element.hidden, false, "The last prompt should not be hidden.");
prompt.onButtonClick(0);
// The click is handled async; wait for an event loop turn for that to
// happen.
await new Promise(function(resolve) {
Services.tm.dispatchToMainThread(resolve);
});
}
}
let promptElements = tab.linkedBrowser.parentNode.querySelectorAll(
"tabmodalprompt"
);
is(promptElements.length, 0, "Prompts should all be dismissed.");
BrowserTestUtils.removeTab(tab);
});
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