зеркало из https://github.com/mozilla/gecko-dev.git
81 строка
2.7 KiB
JavaScript
81 строка
2.7 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/. */
|
|
|
|
/* eslint-env mozilla/frame-script */
|
|
|
|
ChromeUtils.defineModuleGetter(
|
|
this,
|
|
"BrowserUtils",
|
|
"resource://gre/modules/BrowserUtils.jsm"
|
|
);
|
|
|
|
try {
|
|
docShell
|
|
.QueryInterface(Ci.nsIInterfaceRequestor)
|
|
.getInterface(Ci.nsIBrowserChild)
|
|
.beginSendingWebProgressEventsToParent();
|
|
} catch (e) {
|
|
// In responsive design mode, we do not have a BrowserChild for the in-parent
|
|
// document.
|
|
}
|
|
|
|
// This message is used to measure content process startup performance in Talos
|
|
// tests.
|
|
sendAsyncMessage("Content:BrowserChildReady", {
|
|
time: Services.telemetry.msSystemNow(),
|
|
});
|
|
|
|
addEventListener(
|
|
"DOMTitleChanged",
|
|
function(aEvent) {
|
|
if (
|
|
!aEvent.isTrusted ||
|
|
// Check that we haven't been closed (DOM code dispatches this event
|
|
// asynchronously).
|
|
content.closed
|
|
) {
|
|
return;
|
|
}
|
|
// Ensure `docShell.document` (an nsIWebNavigation idl prop) is there:
|
|
docShell.QueryInterface(Ci.nsIWebNavigation);
|
|
if (
|
|
// Check that the document whose title changed is the toplevel document,
|
|
// rather than a subframe, and check that it is still the current
|
|
// document in the docshell - we may have started loading another one.
|
|
docShell.document != aEvent.target
|
|
) {
|
|
return;
|
|
}
|
|
sendAsyncMessage("DOMTitleChanged", { title: content.document.title });
|
|
},
|
|
false
|
|
);
|
|
|
|
// This is here for now until we find a better way of forcing an about:blank load
|
|
// with a particular principal that doesn't involve the message manager. We can't
|
|
// do this with JS Window Actors for now because JS Window Actors are tied to the
|
|
// document principals themselves, so forcing the load with a new principal is
|
|
// self-destructive in that case.
|
|
addMessageListener("BrowserElement:CreateAboutBlank", message => {
|
|
if (!content.document || content.document.documentURI != "about:blank") {
|
|
throw new Error("Can't create a content viewer unless on about:blank");
|
|
}
|
|
let { principal, storagePrincipal } = message.data;
|
|
principal = BrowserUtils.principalWithMatchingOA(
|
|
principal,
|
|
content.document.nodePrincipal
|
|
);
|
|
storagePrincipal = BrowserUtils.principalWithMatchingOA(
|
|
storagePrincipal,
|
|
content.document.effectiveStoragePrincipal
|
|
);
|
|
docShell.createAboutBlankContentViewer(principal, storagePrincipal);
|
|
});
|
|
|
|
// We may not get any responses to Browser:Init if the browser element
|
|
// is torn down too quickly.
|
|
var outerWindowID = docShell.outerWindowID;
|
|
var browsingContextId = docShell.browsingContext.id;
|
|
sendAsyncMessage("Browser:Init", { outerWindowID, browsingContextId });
|