forked from mirrors/gecko-dev
84fc68c001
This pref is now enabled by default on all platforms. Depends on D147810 Differential Revision: https://phabricator.services.mozilla.com/D147811
76 lines
2.3 KiB
JavaScript
76 lines
2.3 KiB
JavaScript
/* Any copyright is dedicated to the Public Domain.
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* http://creativecommons.org/publicdomain/zero/1.0/ */
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"use strict";
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const BASE = "http://example.com/browser/browser/components/sessionstore/test/";
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const READER_MODE_URL =
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"about:reader?url=" +
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encodeURIComponent(BASE + "browser_scrollPositions_readerModeArticle.html");
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// Randomized set of scroll positions we will use in this test.
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const SCROLL_READER_MODE_Y = Math.round(400 * (1 + Math.random()));
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const SCROLL_READER_MODE_STR = "0," + SCROLL_READER_MODE_Y;
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requestLongerTimeout(2);
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/**
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* Test that scroll positions of about reader page after restoring background
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* tabs in a restored window (bug 1153393).
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*/
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add_task(async function test_scroll_background_about_reader_tabs() {
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await pushPrefs(["browser.sessionstore.restore_on_demand", true]);
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let newWin = await BrowserTestUtils.openNewBrowserWindow();
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let tab = BrowserTestUtils.addTab(newWin.gBrowser, READER_MODE_URL);
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let browser = tab.linkedBrowser;
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await Promise.all([
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BrowserTestUtils.browserLoaded(browser),
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BrowserTestUtils.waitForContentEvent(browser, "AboutReaderContentReady"),
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]);
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// Scroll down a little.
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await setScrollPosition(browser, 0, SCROLL_READER_MODE_Y);
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await checkScroll(tab, { scroll: SCROLL_READER_MODE_STR }, "scroll is fine");
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// Close the window
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await BrowserTestUtils.closeWindow(newWin);
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await forceSaveState();
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// Now restore the window
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newWin = ss.undoCloseWindow(0);
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// Make sure to wait for the window to be restored.
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await BrowserTestUtils.waitForEvent(newWin, "SSWindowStateReady");
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is(newWin.gBrowser.tabs.length, 2, "There should be two tabs");
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// The second tab should be the one we loaded URL at still
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tab = newWin.gBrowser.tabs[1];
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ok(tab.hasAttribute("pending"), "Tab should be pending");
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browser = tab.linkedBrowser;
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// Ensure there are no pending queued messages in the child.
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await TabStateFlusher.flush(browser);
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// Now check to see if the background tab remembers where it
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// should be scrolled to.
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newWin.gBrowser.selectedTab = tab;
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await Promise.all([
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promiseTabRestored(tab),
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BrowserTestUtils.waitForContentEvent(
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tab.linkedBrowser,
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"AboutReaderContentReady"
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),
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]);
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await checkScroll(
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tab,
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{ scroll: SCROLL_READER_MODE_STR },
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"scroll is still fine"
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);
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await BrowserTestUtils.closeWindow(newWin);
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});
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