зеркало из https://github.com/mozilla/gecko-dev.git
116 строки
4.1 KiB
JavaScript
116 строки
4.1 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
|
|
* License, v. 2.0. If a copy of the MPL was not distributed with this
|
|
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
|
|
|
|
"use strict";
|
|
|
|
SpecialPowers.pushPrefEnv({"set": [["security.allow_eval_with_system_principal",
|
|
true]]});
|
|
|
|
const PAGE = "data:text/html,<html><body>A%20regular,%20everyday,%20normal%20page.";
|
|
|
|
/**
|
|
* Returns a Promise that resolves when it sees a pageshow and
|
|
* pagehide events in a particular order, where each event must
|
|
* have the persisted property set to true. Will cause a test
|
|
* failure to be logged if it sees an event out of order.
|
|
*
|
|
* @param browser (<xul:browser>)
|
|
* The browser to expect the events from.
|
|
* @param expectedOrder (array)
|
|
* An array of strings describing what order the pageshow
|
|
* and pagehide events should be in.
|
|
* Example:
|
|
* ["pageshow", "pagehide", "pagehide", "pageshow"]
|
|
* @returns Promise
|
|
*/
|
|
function prepareForVisibilityEvents(browser, expectedOrder) {
|
|
return new Promise((resolve) => {
|
|
let order = [];
|
|
|
|
let rmvHide, rmvShow;
|
|
|
|
let checkSatisfied = () => {
|
|
if (order.length < expectedOrder.length) {
|
|
// We're still waiting...
|
|
return;
|
|
} else {
|
|
rmvHide();
|
|
rmvShow();
|
|
|
|
for (let i = 0; i < expectedOrder.length; ++i) {
|
|
is(order[i], expectedOrder[i], "Got expected event");
|
|
}
|
|
resolve();
|
|
}
|
|
};
|
|
|
|
let eventListener = (type) => {
|
|
order.push(type);
|
|
checkSatisfied();
|
|
};
|
|
|
|
let checkFn = (e) => e.persisted;
|
|
|
|
rmvHide = BrowserTestUtils.addContentEventListener(browser, "pagehide",
|
|
() => eventListener("pagehide"),
|
|
{}, checkFn,
|
|
false, false);
|
|
rmvShow = BrowserTestUtils.addContentEventListener(browser, "pageshow",
|
|
() => eventListener("pageshow"),
|
|
{}, checkFn,
|
|
false, false);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Tests that frame scripts get pageshow / pagehide events when
|
|
* swapping browser frameloaders (which occurs when moving a tab
|
|
* into a different window).
|
|
*/
|
|
add_task(async function test_swap_frameloader_pagevisibility_events() {
|
|
// Load a new tab that we'll tear out...
|
|
let tab = BrowserTestUtils.addTab(gBrowser, PAGE);
|
|
gBrowser.selectedTab = tab;
|
|
let firstBrowser = tab.linkedBrowser;
|
|
await BrowserTestUtils.browserLoaded(firstBrowser);
|
|
|
|
// Swap the browser out to a new window
|
|
let newWindow = gBrowser.replaceTabWithWindow(tab);
|
|
|
|
// We have to wait for the window to load so we can get the selected browser
|
|
// to listen to.
|
|
await BrowserTestUtils.waitForEvent(newWindow, "DOMContentLoaded");
|
|
let newWindowBrowser = newWindow.gBrowser.selectedBrowser;
|
|
|
|
// Wait for the expected pagehide and pageshow events on the initial browser
|
|
await prepareForVisibilityEvents(newWindowBrowser, ["pagehide", "pageshow"]);
|
|
|
|
// Now let's send the browser back to the original window
|
|
|
|
// First, create a new, empty browser tab to replace the window with
|
|
let newTab = BrowserTestUtils.addTab(gBrowser);
|
|
gBrowser.selectedTab = newTab;
|
|
let emptyBrowser = newTab.linkedBrowser;
|
|
|
|
// Wait for that initial browser to show its pageshow event if it hasn't
|
|
// happened so that we don't confuse it with the other expected events.
|
|
await ContentTask.spawn(emptyBrowser, {}, async() => {
|
|
if (content.document.visibilityState === "hidden") {
|
|
info("waiting for hidden emptyBrowser to pageshow");
|
|
await ContentTaskUtils.waitForEvent(content, "pageshow", {});
|
|
}
|
|
});
|
|
|
|
// The empty tab we just added show now fire a pagehide as its replaced,
|
|
// and a pageshow once the swap is finished.
|
|
let emptyBrowserPromise =
|
|
prepareForVisibilityEvents(emptyBrowser, ["pagehide", "pageshow"]);
|
|
|
|
gBrowser.swapBrowsersAndCloseOther(newTab, newWindow.gBrowser.selectedTab);
|
|
|
|
await emptyBrowserPromise;
|
|
|
|
gBrowser.removeTab(gBrowser.selectedTab);
|
|
});
|