mozilla-central/dom/base/test/browser_messagemanager_unload.js (file symbol)

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Test Info: Warnings

function frameScript() {
function eventHandler(e) {
if (!docShell) {
sendAsyncMessage("Test:Fail", "docShell is null");
}
sendAsyncMessage("Test:Event", [
e.type,
e.target === content.document,
e.eventPhase,
]);
}
let outerID = content.docShell.outerWindowID;
function onOuterWindowDestroyed(subject, topic, data) {
if (docShell) {
sendAsyncMessage("Test:Fail", "docShell is non-null");
}
let id = subject.QueryInterface(Ci.nsISupportsPRUint64).data;
sendAsyncMessage("Test:Event", ["outer-window-destroyed", id == outerID]);
if (id == outerID) {
Services.obs.removeObserver(
onOuterWindowDestroyed,
"outer-window-destroyed"
);
}
}
let url =
content.location = url;
addEventListener(
"load",
e => {
if (e.target.location != url) {
return;
}
addEventListener("unload", eventHandler, false);
addEventListener("unload", eventHandler, true);
addEventListener("pagehide", eventHandler, false);
addEventListener("pagehide", eventHandler, true);
Services.obs.addObserver(
onOuterWindowDestroyed,
"outer-window-destroyed"
);
sendAsyncMessage("Test:Ready");
},
true
);
}
const EXPECTED = [
// Unload events on the BrowserChildGlobal. These come first so that the
// docshell is available.
["unload", false, 2],
["unload", false, 2],
// pagehide and unload events for the top-level page.
["pagehide", true, 1],
["pagehide", true, 3],
["unload", true, 1],
// pagehide and unload events for the iframe.
["pagehide", false, 1],
["pagehide", false, 3],
["unload", false, 1],
// outer-window-destroyed for both pages.
["outer-window-destroyed", false],
["outer-window-destroyed", true],
];
function test() {
waitForExplicitFinish();
var newTab = BrowserTestUtils.addTab(gBrowser, "about:blank");
gBrowser.selectedTab = newTab;
let browser = newTab.linkedBrowser;
let frameLoader = browser.frameLoader;
Assert.notStrictEqual(frameLoader, null, "frameLoader looks okay");
browser.messageManager.loadFrameScript(
"data:,(" + frameScript.toString() + ")()",
false
);
browser.messageManager.addMessageListener(
"Test:Fail",
msg => {
ok(false, msg.data);
},
true
);
let index = 0;
browser.messageManager.addMessageListener(
"Test:Event",
msg => {
Assert.strictEqual(msg.target, browser, "<browser> is correct");
Assert.strictEqual(
msg.targetFrameLoader,
frameLoader,
"frameLoader is correct"
);
Assert.strictEqual(
browser.frameLoader,
null,
"browser frameloader null during teardown"
);
info(JSON.stringify(msg.data));
is(
JSON.stringify(msg.data),
JSON.stringify(EXPECTED[index]),
"results match"
);
index++;
if (index == EXPECTED.length) {
finish();
}
},
true
);
browser.messageManager.addMessageListener("Test:Ready", () => {
info("Got ready message");
gBrowser.removeCurrentTab();
});
}