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/* Any copyright is dedicated to the Public Domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
const URL = "about:blank";
async function getBrowsingContextId(browser, id) {
return SpecialPowers.spawn(browser, [id], async function(id) {
let contextId = content.window.docShell.browsingContext.id;
let frames = [content.window];
while (frames.length) {
let frame = frames.pop();
let target = frame.document.getElementById(id);
if (target) {
contextId = target.docShell.browsingContext.id;
break;
}
frames = frames.concat(Array.from(frame.frames));
}
return contextId;
});
}
async function addFrame(browser, id, parentId) {
return SpecialPowers.spawn(browser, [{ parentId, id }], async function({
parentId,
id,
}) {
let parent = null;
if (parentId) {
let frames = [content.window];
while (frames.length) {
let frame = frames.pop();
let target = frame.document.getElementById(parentId);
if (target) {
parent = target.contentWindow.document.body;
break;
}
frames = frames.concat(Array.from(frame.frames));
}
} else {
parent = content.document.body;
}
let frame = await new Promise(resolve => {
let frame = content.document.createElement("iframe");
frame.id = id || "";
frame.url = "about:blank";
frame.onload = () => resolve(frame);
parent.appendChild(frame);
});
return frame.contentWindow.docShell.browsingContext.id;
});
}
async function removeFrame(browser, id) {
return SpecialPowers.spawn(browser, [id], async function(id) {
let frames = [content.window];
while (frames.length) {
let frame = frames.pop();
let target = frame.document.getElementById(id);
if (target) {
target.remove();
break;
}
frames = frames.concat(Array.from(frame.frames));
}
});
}
function getBrowsingContextById(id) {
return BrowsingContext.get(id);
}
add_task(async function() {
await BrowserTestUtils.withNewTab({ gBrowser, url: URL }, async function(
browser
) {
let topId = await getBrowsingContextId(browser, "");
let topContext = getBrowsingContextById(topId);
isnot(topContext, null);
is(topContext.parent, null);
is(
topId,
browser.browsingContext.id,
"<browser> has the correct browsingContext"
);
is(
browser.browserId,
topContext.browserId,
"browsing context should have a correct <browser> id"
);
let id0 = await addFrame(browser, "frame0");
let browsingContext0 = getBrowsingContextById(id0);
isnot(browsingContext0, null);
is(browsingContext0.parent, topContext);
await removeFrame(browser, "frame0");
is(topContext.children.indexOf(browsingContext0), -1);
// TODO(farre): Handle browsingContext removal [see Bug 1486719].
todo_isnot(browsingContext0.parent, topContext);
});
});
add_task(async function() {
// If Fission is disabled, the pref is no-op.
await SpecialPowers.pushPrefEnv({ set: [["fission.bfcacheInParent", true]] });
await BrowserTestUtils.withNewTab(
{
gBrowser,
url:
getRootDirectory(gTestPath).replace(
"chrome://mochitests/content",
// eslint-disable-next-line @microsoft/sdl/no-insecure-url
"http://example.com"
) + "dummy_page.html",
},
async function(browser) {
let path = getRootDirectory(gTestPath).replace(
"chrome://mochitests/content",
// eslint-disable-next-line @microsoft/sdl/no-insecure-url
"http://example.com"
);
await SpecialPowers.spawn(browser, [path], async function(path) {
var bc = new content.BroadcastChannel("browser_browsingContext");
function waitForMessage(command) {
let p = new Promise(resolve => {
bc.addEventListener("message", e => resolve(e), { once: true });
});
command();
return p;
}
// Open a new window and wait for the message.
let e1 = await waitForMessage(_ =>
content.window.open(path + "onpageshow_message.html", "", "noopener")
);
is(e1.data, "pageshow", "Got page show");
let e2 = await waitForMessage(_ => bc.postMessage("createiframe"));
is(e2.data.framesLength, 1, "Here we should have an iframe");
let e3 = await waitForMessage(_ => bc.postMessage("nextpage"));
is(e3.data.event, "load");
is(e3.data.framesLength, 0, "Here there shouldn't be an iframe");
// Return to the previous document. N.B. we expect to trigger
// BFCache here, hence we wait for pageshow.
let e4 = await waitForMessage(_ => bc.postMessage("back"));
is(e4.data, "pageshow");
let e5 = await waitForMessage(_ => bc.postMessage("queryframes"));
is(e5.data.framesLength, 1, "And again there should be an iframe");
is(e5.outerWindowId, e2.outerWindowId, "BF cache cached outer window");
is(e5.browsingContextId, e2.browsingContextId, "BF cache cached BC");
let e6 = await waitForMessage(_ => bc.postMessage("close"));
is(e6.data, "closed");
bc.close();
});
}
);
});
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