gecko/toolkit/modules/RemoteWebProgress.jsm

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// -*- Mode: javascript; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
// 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/.
this.EXPORTED_SYMBOLS = ["RemoteWebProgressManager"];
const Ci = Components.interfaces;
const Cc = Components.classes;
const Cu = Components.utils;
Cu.import("resource://gre/modules/XPCOMUtils.jsm");
function newURI(spec)
{
return Cc["@mozilla.org/network/io-service;1"].getService(Ci.nsIIOService)
.newURI(spec, null, null);
}
function RemoteWebProgressRequest(spec)
{
this.uri = newURI(spec);
}
RemoteWebProgressRequest.prototype = {
QueryInterface : XPCOMUtils.generateQI([Ci.nsIChannel]),
get URI() { return this.uri.clone(); }
};
function RemoteWebProgress(aManager, aIsTopLevel) {
this._manager = aManager;
this._isLoadingDocument = false;
this._DOMWindow = null;
this._isTopLevel = aIsTopLevel;
this._loadType = 0;
}
RemoteWebProgress.prototype = {
NOTIFY_STATE_REQUEST: 0x00000001,
NOTIFY_STATE_DOCUMENT: 0x00000002,
NOTIFY_STATE_NETWORK: 0x00000004,
NOTIFY_STATE_WINDOW: 0x00000008,
NOTIFY_STATE_ALL: 0x0000000f,
NOTIFY_PROGRESS: 0x00000010,
NOTIFY_STATUS: 0x00000020,
NOTIFY_SECURITY: 0x00000040,
NOTIFY_LOCATION: 0x00000080,
NOTIFY_REFRESH: 0x00000100,
NOTIFY_ALL: 0x000001ff,
get isLoadingDocument() { return this._isLoadingDocument },
get DOMWindow() { return this._DOMWindow; },
get DOMWindowID() { return 0; },
get isTopLevel() { return this._isTopLevel },
get loadType() { return this._loadType; },
addProgressListener: function (aListener) {
this._manager.addProgressListener(aListener);
},
removeProgressListener: function (aListener) {
this._manager.removeProgressListener(aListener);
}
};
function RemoteWebProgressManager (aBrowser) {
this._browser = aBrowser;
this._topLevelWebProgress = new RemoteWebProgress(this, true);
this._progressListeners = [];
this._browser.messageManager.addMessageListener("Content:StateChange", this);
this._browser.messageManager.addMessageListener("Content:LocationChange", this);
this._browser.messageManager.addMessageListener("Content:SecurityChange", this);
this._browser.messageManager.addMessageListener("Content:StatusChange", this);
}
RemoteWebProgressManager.prototype = {
get topLevelWebProgress() {
return this._topLevelWebProgress;
},
addProgressListener: function (aListener) {
let listener = aListener.QueryInterface(Ci.nsIWebProgressListener);
this._progressListeners.push(listener);
},
removeProgressListener: function (aListener) {
this._progressListeners =
this._progressListeners.filter(l => l != aListener);
},
_fixSSLStatusAndState: function (aStatus, aState) {
let deserialized = null;
if (aStatus) {
let helper = Cc["@mozilla.org/network/serialization-helper;1"]
.getService(Components.interfaces.nsISerializationHelper);
deserialized = helper.deserializeObject(aStatus)
deserialized.QueryInterface(Ci.nsISSLStatus);
}
// We must check the Extended Validation (EV) state here, on the chrome
// process, because NSS is needed for that determination.
if (deserialized && deserialized.isExtendedValidation)
aState |= Ci.nsIWebProgressListener.STATE_IDENTITY_EV_TOPLEVEL;
return [deserialized, aState];
},
setCurrentURI: function (aURI) {
// This function is simpler than nsDocShell::SetCurrentURI since
// it doesn't have to deal with child docshells.
let webNavigation = this._browser.webNavigation;
webNavigation._currentURI = aURI;
let webProgress = this.topLevelWebProgress;
for (let p of this._progressListeners) {
p.onLocationChange(webProgress, null, aURI);
}
},
_callProgressListeners: function(methodName, ...args) {
for (let p of this._progressListeners) {
if (p[methodName]) {
try {
p[methodName].apply(p, args);
} catch (ex) {
Cu.reportError("RemoteWebProgress failed to call " + methodName + ": " + ex + "\n");
}
}
}
},
receiveMessage: function (aMessage) {
let json = aMessage.json;
let objects = aMessage.objects;
// The top-level WebProgress is always the same, but because we don't
// really have a concept of subframes/content we always creat a new object
// for those.
let webProgress = json.isTopLevel ? this._topLevelWebProgress
: new RemoteWebProgress(this, false);
// The WebProgressRequest object however is always dynamic.
let request = json.requestURI ? new RemoteWebProgressRequest(json.requestURI)
: null;
// Update the actual WebProgress fields.
webProgress._isLoadingDocument = json.isLoadingDocument;
webProgress._DOMWindow = objects.DOMWindow;
webProgress._loadType = json.loadType;
if (json.isTopLevel)
this._browser._contentWindow = objects.contentWindow;
switch (aMessage.name) {
case "Content:StateChange":
this._callProgressListeners("onStateChange", webProgress, request, json.stateFlags, json.status);
break;
case "Content:LocationChange":
let location = newURI(json.location);
let flags = json.flags;
if (json.isTopLevel) {
this._browser.webNavigation._currentURI = location;
this._browser.webNavigation.canGoBack = json.canGoBack;
this._browser.webNavigation.canGoForward = json.canGoForward;
this._browser._characterSet = json.charset;
this._browser._documentURI = newURI(json.documentURI);
this._browser._imageDocument = null;
}
this._callProgressListeners("onLocationChange", webProgress, request, location, flags);
break;
case "Content:SecurityChange":
let [status, state] = this._fixSSLStatusAndState(json.status, json.state);
if (json.isTopLevel) {
// Invoking this getter triggers the generation of the underlying object,
// which we need to access with ._securityUI, because .securityUI returns
// a wrapper that makes _update inaccessible.
void this._browser.securityUI;
this._browser._securityUI._update(status, state);
}
this._callProgressListeners("onSecurityChange", webProgress, request, state);
break;
case "Content:StatusChange":
this._callProgressListeners("onStatusChange", webProgress, request, json.status, json.message);
break;
}
}
};