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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() {
await BrowserTestUtils.withNewTab(
{
gBrowser,
url:
getRootDirectory(gTestPath).replace(
"chrome://mochitests/content",
"http://example.com"
) + "dummy_page.html",
},
async function(browser) {
let path = getRootDirectory(gTestPath).replace(
"chrome://mochitests/content",
"http://example.com"
);
await SpecialPowers.spawn(browser, [path], async function(path) {
function waitForMessage(command) {
let r;
let p = new Promise(resolve => {
content.window.addEventListener(
"message",
e => resolve({ result: r, event: e }),
{ once: true }
);
});
r = command();
return p;
}
// Open a new window and wait for the message.
let { result: win, event: e1 } = await waitForMessage(_ =>
content.window.open(path + "onpageshow_message.html")
);
is(e1.data, "pageshow");
{
// Create, attach and load an iframe into the window's document.
let frame = win.document.createElement("iframe");
win.document.body.appendChild(frame);
frame.src = "dummy_page.html";
await ContentTaskUtils.waitForEvent(frame, "load");
}
is(win.frames.length, 1, "Here we should have an iframe");
// The frame should have expected browsing context and docshell.
let frameBC = win.frames[0].docShell.browsingContext;
let winDocShell = win.frames[0].docShell;
// Navigate the window and wait for the message.
let { event: e2 } = await waitForMessage(
_ => (win.location = path + "onload_message.html")
);
is(e2.data, "load");
is(win.frames.length, 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 { event: e3 } = await waitForMessage(_ => win.history.back());
is(e3.data, "pageshow");
is(win.frames.length, 1, "And again there should be an iframe");
is(winDocShell, win.frames[0].docShell, "BF cache cached docshell");
is(
frameBC,
win.frames[0].docShell.browsingContext,
"BF cache cached BC"
);
is(
frameBC.id,
win.frames[0].docShell.browsingContext.id,
"BF cached BC's have same id"
);
is(
win.docShell.browsingContext.children[0],
frameBC,
"BF cached BC's should still be a child of its parent"
);
is(
win.docShell.browsingContext,
frameBC.parent,
"BF cached BC's should still be a connected to its parent"
);
win.close();
});
}
);
});
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