forked from mirrors/gecko-dev
133 lines
4.2 KiB
JavaScript
133 lines
4.2 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/. */
|
|
|
|
"use strict";
|
|
|
|
function debug(msg) {
|
|
Services.console.logStringMessage("SessionStoreContent: " + msg);
|
|
}
|
|
|
|
let Cu = Components.utils;
|
|
|
|
Cu.import("resource://gre/modules/XPCOMUtils.jsm", this);
|
|
|
|
XPCOMUtils.defineLazyModuleGetter(this, "DocShellCapabilities",
|
|
"resource:///modules/sessionstore/DocShellCapabilities.jsm");
|
|
XPCOMUtils.defineLazyModuleGetter(this, "PageStyle",
|
|
"resource:///modules/sessionstore/PageStyle.jsm");
|
|
XPCOMUtils.defineLazyModuleGetter(this, "SessionHistory",
|
|
"resource:///modules/sessionstore/SessionHistory.jsm");
|
|
XPCOMUtils.defineLazyModuleGetter(this, "SessionStorage",
|
|
"resource:///modules/sessionstore/SessionStorage.jsm");
|
|
|
|
/**
|
|
* Listens for and handles content events that we need for the
|
|
* session store service to be notified of state changes in content.
|
|
*/
|
|
let EventListener = {
|
|
|
|
DOM_EVENTS: [
|
|
"pageshow", "change", "input", "MozStorageChanged"
|
|
],
|
|
|
|
init: function () {
|
|
this.DOM_EVENTS.forEach(e => addEventListener(e, this, true));
|
|
},
|
|
|
|
handleEvent: function (event) {
|
|
switch (event.type) {
|
|
case "pageshow":
|
|
if (event.persisted)
|
|
sendAsyncMessage("SessionStore:pageshow");
|
|
break;
|
|
case "input":
|
|
case "change":
|
|
sendAsyncMessage("SessionStore:input");
|
|
break;
|
|
case "MozStorageChanged": {
|
|
let isSessionStorage = true;
|
|
// We are only interested in sessionStorage events
|
|
try {
|
|
if (event.storageArea != content.sessionStorage) {
|
|
isSessionStorage = false;
|
|
}
|
|
} catch (ex) {
|
|
// This page does not even have sessionStorage
|
|
// (this is typically the case of about: pages)
|
|
isSessionStorage = false;
|
|
}
|
|
if (isSessionStorage) {
|
|
sendAsyncMessage("SessionStore:MozStorageChanged");
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
debug("received unknown event '" + event.type + "'");
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
/**
|
|
* Listens for and handles messages sent by the session store service.
|
|
*/
|
|
let MessageListener = {
|
|
|
|
MESSAGES: [
|
|
"SessionStore:collectSessionHistory",
|
|
"SessionStore:collectSessionStorage",
|
|
"SessionStore:collectDocShellCapabilities",
|
|
"SessionStore:collectPageStyle"
|
|
],
|
|
|
|
init: function () {
|
|
this.MESSAGES.forEach(m => addMessageListener(m, this));
|
|
},
|
|
|
|
receiveMessage: function ({name, data: {id}}) {
|
|
switch (name) {
|
|
case "SessionStore:collectSessionHistory":
|
|
let history = SessionHistory.read(docShell);
|
|
sendAsyncMessage(name, {id: id, data: history});
|
|
break;
|
|
case "SessionStore:collectSessionStorage":
|
|
let storage = SessionStorage.serialize(docShell);
|
|
sendAsyncMessage(name, {id: id, data: storage});
|
|
break;
|
|
case "SessionStore:collectDocShellCapabilities":
|
|
let disallow = DocShellCapabilities.collect(docShell);
|
|
sendAsyncMessage(name, {id: id, data: disallow});
|
|
break;
|
|
case "SessionStore:collectPageStyle":
|
|
let pageStyle = PageStyle.collect(docShell);
|
|
sendAsyncMessage(name, {id: id, data: pageStyle});
|
|
break;
|
|
default:
|
|
debug("received unknown message '" + name + "'");
|
|
break;
|
|
}
|
|
}
|
|
};
|
|
|
|
let ProgressListener = {
|
|
init: function() {
|
|
let webProgress = docShell.QueryInterface(Ci.nsIInterfaceRequestor)
|
|
.getInterface(Ci.nsIWebProgress);
|
|
webProgress.addProgressListener(this, Ci.nsIWebProgress.NOTIFY_LOCATION);
|
|
},
|
|
onLocationChange: function(aWebProgress, aRequest, aLocation, aFlags) {
|
|
// We are changing page, so time to invalidate the state of the tab
|
|
sendAsyncMessage("SessionStore:loadStart");
|
|
},
|
|
onStateChange: function(aWebProgress, aRequest, aStateFlags, aStatus) {},
|
|
onProgressChange: function() {},
|
|
onStatusChange: function() {},
|
|
onSecurityChange: function() {},
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsIWebProgressListener,
|
|
Ci.nsISupportsWeakReference])
|
|
};
|
|
|
|
EventListener.init();
|
|
MessageListener.init();
|
|
ProgressListener.init();
|