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nsBrowserContentHandler.js
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nsBrowserContentHandler.js
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# ***** BEGIN LICENSE BLOCK *****
# Version: MPL 1.1/GPL 2.0/LGPL 2.1
#
# The contents of this file are subject to the Mozilla Public License Version
# 1.1 (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
# http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS IS" basis,
# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
# for the specific language governing rights and limitations under the
# License.
#
# The Original Code is the Mozilla Firefox browser.
#
# The Initial Developer of the Original Code is
# Benjamin Smedberg <benjamin@smedbergs.us>
#
# Portions created by the Initial Developer are Copyright (C) 2004
# the Initial Developer. All Rights Reserved.
#
# Contributor(s):
# Robert Strong <robert.bugzilla@gmail.com>
#
# Alternatively, the contents of this file may be used under the terms of
# either the GNU General Public License Version 2 or later (the "GPL"), or
# the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
# in which case the provisions of the GPL or the LGPL are applicable instead
# of those above. If you wish to allow use of your version of this file only
# under the terms of either the GPL or the LGPL, and not to allow others to
# use your version of this file under the terms of the MPL, indicate your
# decision by deleting the provisions above and replace them with the notice
# and other provisions required by the GPL or the LGPL. If you do not delete
# the provisions above, a recipient may use your version of this file under
# the terms of any one of the MPL, the GPL or the LGPL.
#
# ***** END LICENSE BLOCK *****
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
Components.utils.import("resource://gre/modules/Services.jsm");
const nsISupports = Components.interfaces.nsISupports;
const nsIBrowserDOMWindow = Components.interfaces.nsIBrowserDOMWindow;
const nsIBrowserHandler = Components.interfaces.nsIBrowserHandler;
const nsIBrowserHistory = Components.interfaces.nsIBrowserHistory;
const nsIChannel = Components.interfaces.nsIChannel;
const nsICommandLine = Components.interfaces.nsICommandLine;
const nsICommandLineHandler = Components.interfaces.nsICommandLineHandler;
const nsIContentHandler = Components.interfaces.nsIContentHandler;
const nsIDocShellTreeItem = Components.interfaces.nsIDocShellTreeItem;
const nsIDOMChromeWindow = Components.interfaces.nsIDOMChromeWindow;
const nsIDOMWindow = Components.interfaces.nsIDOMWindow;
const nsIFileURL = Components.interfaces.nsIFileURL;
const nsIInterfaceRequestor = Components.interfaces.nsIInterfaceRequestor;
const nsINetUtil = Components.interfaces.nsINetUtil;
const nsIPrefBranch = Components.interfaces.nsIPrefBranch;
const nsIPrefLocalizedString = Components.interfaces.nsIPrefLocalizedString;
const nsISupportsString = Components.interfaces.nsISupportsString;
const nsIURIFixup = Components.interfaces.nsIURIFixup;
const nsIWebNavigation = Components.interfaces.nsIWebNavigation;
const nsIWindowMediator = Components.interfaces.nsIWindowMediator;
const nsIWindowWatcher = Components.interfaces.nsIWindowWatcher;
const nsIWebNavigationInfo = Components.interfaces.nsIWebNavigationInfo;
const nsIBrowserSearchService = Components.interfaces.nsIBrowserSearchService;
const nsICommandLineValidator = Components.interfaces.nsICommandLineValidator;
const NS_BINDING_ABORTED = Components.results.NS_BINDING_ABORTED;
const NS_ERROR_WONT_HANDLE_CONTENT = 0x805d0001;
const NS_ERROR_ABORT = Components.results.NS_ERROR_ABORT;
const URI_INHERITS_SECURITY_CONTEXT = Components.interfaces.nsIHttpProtocolHandler
.URI_INHERITS_SECURITY_CONTEXT;
function shouldLoadURI(aURI) {
if (aURI && !aURI.schemeIs("chrome"))
return true;
dump("*** Preventing external load of chrome: URI into browser window\n");
dump(" Use -chrome <uri> instead\n");
return false;
}
function resolveURIInternal(aCmdLine, aArgument) {
var uri = aCmdLine.resolveURI(aArgument);
if (!(uri instanceof nsIFileURL)) {
return uri;
}
try {
if (uri.file.exists())
return uri;
}
catch (e) {
Components.utils.reportError(e);
}
// We have interpreted the argument as a relative file URI, but the file
// doesn't exist. Try URI fixup heuristics: see bug 290782.
try {
var urifixup = Components.classes["@mozilla.org/docshell/urifixup;1"]
.getService(nsIURIFixup);
uri = urifixup.createFixupURI(aArgument, 0);
}
catch (e) {
Components.utils.reportError(e);
}
return uri;
}
const OVERRIDE_NONE = 0;
const OVERRIDE_NEW_PROFILE = 1;
const OVERRIDE_NEW_MSTONE = 2;
const OVERRIDE_NEW_BUILD_ID = 3;
/**
* Determines whether a home page override is needed.
* Returns:
* OVERRIDE_NEW_PROFILE if this is the first run with a new profile.
* OVERRIDE_NEW_MSTONE if this is the first run with a build with a different
* Gecko milestone (i.e. right after an upgrade).
* OVERRIDE_NEW_BUILD_ID if this is the first run with a new build ID of the
* same Gecko milestone (i.e. after a nightly upgrade).
* OVERRIDE_NONE otherwise.
*/
function needHomepageOverride(prefb) {
var savedmstone = null;
try {
savedmstone = prefb.getCharPref("browser.startup.homepage_override.mstone");
} catch (e) {}
if (savedmstone == "ignore")
return OVERRIDE_NONE;
var mstone = Services.appinfo.platformVersion;
var savedBuildID = null;
try {
savedBuildID = prefb.getCharPref("browser.startup.homepage_override.buildID");
} catch (e) {}
var buildID = Services.appinfo.platformBuildID;
if (mstone != savedmstone) {
// Bug 462254. Previous releases had a default pref to suppress the EULA
// agreement if the platform's installer had already shown one. Now with
// about:rights we've removed the EULA stuff and default pref, but we need
// a way to make existing profiles retain the default that we removed.
if (savedmstone)
prefb.setBoolPref("browser.rights.3.shown", true);
prefb.setCharPref("browser.startup.homepage_override.mstone", mstone);
prefb.setCharPref("browser.startup.homepage_override.buildID", buildID);
return (savedmstone ? OVERRIDE_NEW_MSTONE : OVERRIDE_NEW_PROFILE);
}
if (buildID != savedBuildID) {
prefb.setCharPref("browser.startup.homepage_override.buildID", buildID);
return OVERRIDE_NEW_BUILD_ID;
}
return OVERRIDE_NONE;
}
/**
* Gets the override page for the first run after the application has been
* updated.
* @param defaultOverridePage
* The default override page.
* @return The override page.
*/
function getPostUpdateOverridePage(defaultOverridePage) {
var um = Components.classes["@mozilla.org/updates/update-manager;1"]
.getService(Components.interfaces.nsIUpdateManager);
try {
// If the updates.xml file is deleted then getUpdateAt will throw.
var update = um.getUpdateAt(0)
.QueryInterface(Components.interfaces.nsIPropertyBag);
} catch (e) {
// This should never happen.
Components.utils.reportError("Unable to find update: " + e);
return defaultOverridePage;
}
let actions = update.getProperty("actions");
// When the update doesn't specify actions fallback to the original behavior
// of displaying the default override page.
if (!actions)
return defaultOverridePage;
// The existence of silent or the non-existence of showURL in the actions both
// mean that an override page should not be displayed.
if (actions.indexOf("silent") != -1 || actions.indexOf("showURL") == -1)
return "";
return update.getProperty("openURL") || defaultOverridePage;
}
// Copies a pref override file into the user's profile pref-override folder,
// and then tells the pref service to reload its default prefs.
function copyPrefOverride() {
try {
var fileLocator = Components.classes["@mozilla.org/file/directory_service;1"]
.getService(Components.interfaces.nsIProperties);
const NS_APP_EXISTING_PREF_OVERRIDE = "ExistingPrefOverride";
var prefOverride = fileLocator.get(NS_APP_EXISTING_PREF_OVERRIDE,
Components.interfaces.nsIFile);
if (!prefOverride.exists())
return; // nothing to do
const NS_APP_PREFS_OVERRIDE_DIR = "PrefDOverride";
var prefOverridesDir = fileLocator.get(NS_APP_PREFS_OVERRIDE_DIR,
Components.interfaces.nsIFile);
// Check for any existing pref overrides, and remove them if present
var existingPrefOverridesFile = prefOverridesDir.clone();
existingPrefOverridesFile.append(prefOverride.leafName);
if (existingPrefOverridesFile.exists())
existingPrefOverridesFile.remove(false);
prefOverride.copyTo(prefOverridesDir, null);
// Now that we've installed the new-profile pref override file,
// re-read the default prefs.
var prefSvcObs = Components.classes["@mozilla.org/preferences-service;1"]
.getService(Components.interfaces.nsIObserver);
prefSvcObs.observe(null, "reload-default-prefs", null);
} catch (ex) {
Components.utils.reportError(ex);
}
}
// Flag used to indicate that the arguments to openWindow can be passed directly.
const NO_EXTERNAL_URIS = 1;
function openWindow(parent, url, target, features, args, noExternalArgs) {
var wwatch = Components.classes["@mozilla.org/embedcomp/window-watcher;1"]
.getService(nsIWindowWatcher);
if (noExternalArgs == NO_EXTERNAL_URIS) {
// Just pass in the defaultArgs directly
var argstring;
if (args) {
argstring = Components.classes["@mozilla.org/supports-string;1"]
.createInstance(nsISupportsString);
argstring.data = args;
}
return wwatch.openWindow(parent, url, target, features, argstring);
}
// Pass an array to avoid the browser "|"-splitting behavior.
var argArray = Components.classes["@mozilla.org/supports-array;1"]
.createInstance(Components.interfaces.nsISupportsArray);
// add args to the arguments array
var stringArgs = null;
if (args instanceof Array) // array
stringArgs = args;
else if (args) // string
stringArgs = [args];
if (stringArgs) {
// put the URIs into argArray
var uriArray = Components.classes["@mozilla.org/supports-array;1"]
.createInstance(Components.interfaces.nsISupportsArray);
stringArgs.forEach(function (uri) {
var sstring = Components.classes["@mozilla.org/supports-string;1"]
.createInstance(nsISupportsString);
sstring.data = uri;
uriArray.AppendElement(sstring);
});
argArray.AppendElement(uriArray);
} else {
argArray.AppendElement(null);
}
// Pass these as null to ensure that we always trigger the "single URL"
// behavior in browser.js's BrowserStartup (which handles the window
// arguments)
argArray.AppendElement(null); // charset
argArray.AppendElement(null); // referer
argArray.AppendElement(null); // postData
argArray.AppendElement(null); // allowThirdPartyFixup
return wwatch.openWindow(parent, url, target, features, argArray);
}
function openPreferences() {
var features = "chrome,titlebar,toolbar,centerscreen,dialog=no";
var url = "chrome://browser/content/preferences/preferences.xul";
var win = getMostRecentWindow("Browser:Preferences");
if (win) {
win.focus();
} else {
openWindow(null, url, "_blank", features);
}
}
function getMostRecentWindow(aType) {
var wm = Components.classes["@mozilla.org/appshell/window-mediator;1"]
.getService(nsIWindowMediator);
return wm.getMostRecentWindow(aType);
}
// this returns the most recent non-popup browser window
function getMostRecentBrowserWindow() {
var browserGlue = Components.classes["@mozilla.org/browser/browserglue;1"]
.getService(Components.interfaces.nsIBrowserGlue);
return browserGlue.getMostRecentBrowserWindow();
}
function doSearch(searchTerm, cmdLine) {
var ss = Components.classes["@mozilla.org/browser/search-service;1"]
.getService(nsIBrowserSearchService);
var submission = ss.defaultEngine.getSubmission(searchTerm);
// fill our nsISupportsArray with uri-as-wstring, null, null, postData
var sa = Components.classes["@mozilla.org/supports-array;1"]
.createInstance(Components.interfaces.nsISupportsArray);
var wuri = Components.classes["@mozilla.org/supports-string;1"]
.createInstance(Components.interfaces.nsISupportsString);
wuri.data = submission.uri.spec;
sa.AppendElement(wuri);
sa.AppendElement(null);
sa.AppendElement(null);
sa.AppendElement(submission.postData);
// XXXbsmedberg: use handURIToExistingBrowser to obey tabbed-browsing
// preferences, but need nsIBrowserDOMWindow extensions
var wwatch = Components.classes["@mozilla.org/embedcomp/window-watcher;1"]
.getService(nsIWindowWatcher);
return wwatch.openWindow(null, gBrowserContentHandler.chromeURL,
"_blank",
"chrome,dialog=no,all" +
gBrowserContentHandler.getFeatures(cmdLine),
sa);
}
function nsBrowserContentHandler() {
}
nsBrowserContentHandler.prototype = {
classID: Components.ID("{5d0ce354-df01-421a-83fb-7ead0990c24e}"),
_xpcom_factory: {
createInstance: function bch_factory_ci(outer, iid) {
if (outer)
throw Components.results.NS_ERROR_NO_AGGREGATION;
return gBrowserContentHandler.QueryInterface(iid);
}
},
/* helper functions */
mChromeURL : null,
get chromeURL() {
if (this.mChromeURL) {
return this.mChromeURL;
}
var prefb = Components.classes["@mozilla.org/preferences-service;1"]
.getService(nsIPrefBranch);
this.mChromeURL = prefb.getCharPref("browser.chromeURL");
return this.mChromeURL;
},
/* nsISupports */
QueryInterface : XPCOMUtils.generateQI([nsICommandLineHandler,
nsIBrowserHandler,
nsIContentHandler,
nsICommandLineValidator]),
/* nsICommandLineHandler */
handle : function bch_handle(cmdLine) {
if (cmdLine.handleFlag("browser", false)) {
// Passing defaultArgs, so use NO_EXTERNAL_URIS
openWindow(null, this.chromeURL, "_blank",
"chrome,dialog=no,all" + this.getFeatures(cmdLine),
this.defaultArgs, NO_EXTERNAL_URIS);
cmdLine.preventDefault = true;
}
try {
var remoteCommand = cmdLine.handleFlagWithParam("remote", true);
}
catch (e) {
throw NS_ERROR_ABORT;
}
if (remoteCommand != null) {
try {
var a = /^\s*(\w+)\(([^\)]*)\)\s*$/.exec(remoteCommand);
var remoteVerb;
if (a) {
remoteVerb = a[1].toLowerCase();
var remoteParams = [];
var sepIndex = a[2].lastIndexOf(",");
if (sepIndex == -1)
remoteParams[0] = a[2];
else {
remoteParams[0] = a[2].substring(0, sepIndex);
remoteParams[1] = a[2].substring(sepIndex + 1);
}
}
switch (remoteVerb) {
case "openurl":
case "openfile":
// openURL(<url>)
// openURL(<url>,new-window)
// openURL(<url>,new-tab)
// First param is the URL, second param (if present) is the "target"
// (tab, window)
var url = remoteParams[0];
var target = nsIBrowserDOMWindow.OPEN_DEFAULTWINDOW;
if (remoteParams[1]) {
var targetParam = remoteParams[1].toLowerCase()
.replace(/^\s*|\s*$/g, "");
if (targetParam == "new-tab")
target = nsIBrowserDOMWindow.OPEN_NEWTAB;
else if (targetParam == "new-window")
target = nsIBrowserDOMWindow.OPEN_NEWWINDOW;
else {
// The "target" param isn't one of our supported values, so
// assume it's part of a URL that contains commas.
url += "," + remoteParams[1];
}
}
var uri = resolveURIInternal(cmdLine, url);
handURIToExistingBrowser(uri, target, cmdLine);
break;
case "xfedocommand":
// xfeDoCommand(openBrowser)
if (remoteParams[0].toLowerCase() != "openbrowser")
throw NS_ERROR_ABORT;
// Passing defaultArgs, so use NO_EXTERNAL_URIS
openWindow(null, this.chromeURL, "_blank",
"chrome,dialog=no,all" + this.getFeatures(cmdLine),
this.defaultArgs, NO_EXTERNAL_URIS);
break;
default:
// Somebody sent us a remote command we don't know how to process:
// just abort.
throw "Unknown remote command.";
}
cmdLine.preventDefault = true;
}
catch (e) {
Components.utils.reportError(e);
// If we had a -remote flag but failed to process it, throw
// NS_ERROR_ABORT so that the xremote code knows to return a failure
// back to the handling code.
throw NS_ERROR_ABORT;
}
}
var uriparam;
try {
while ((uriparam = cmdLine.handleFlagWithParam("new-window", false))) {
var uri = resolveURIInternal(cmdLine, uriparam);
if (!shouldLoadURI(uri))
continue;
openWindow(null, this.chromeURL, "_blank",
"chrome,dialog=no,all" + this.getFeatures(cmdLine),
uri.spec);
cmdLine.preventDefault = true;
}
}
catch (e) {
Components.utils.reportError(e);
}
try {
while ((uriparam = cmdLine.handleFlagWithParam("new-tab", false))) {
var uri = resolveURIInternal(cmdLine, uriparam);
handURIToExistingBrowser(uri, nsIBrowserDOMWindow.OPEN_NEWTAB, cmdLine);
cmdLine.preventDefault = true;
}
}
catch (e) {
Components.utils.reportError(e);
}
var chromeParam = cmdLine.handleFlagWithParam("chrome", false);
if (chromeParam) {
// Handle the old preference dialog URL separately (bug 285416)
if (chromeParam == "chrome://browser/content/pref/pref.xul") {
openPreferences();
cmdLine.preventDefault = true;
} else try {
// only load URIs which do not inherit chrome privs
var features = "chrome,dialog=no,all" + this.getFeatures(cmdLine);
var uri = resolveURIInternal(cmdLine, chromeParam);
var netutil = Components.classes["@mozilla.org/network/util;1"]
.getService(nsINetUtil);
if (!netutil.URIChainHasFlags(uri, URI_INHERITS_SECURITY_CONTEXT)) {
openWindow(null, uri.spec, "_blank", features);
cmdLine.preventDefault = true;
}
}
catch (e) {
Components.utils.reportError(e);
}
}
if (cmdLine.handleFlag("preferences", false)) {
openPreferences();
cmdLine.preventDefault = true;
}
if (cmdLine.handleFlag("silent", false))
cmdLine.preventDefault = true;
if (cmdLine.findFlag("private-toggle", false) >= 0)
cmdLine.preventDefault = true;
var searchParam = cmdLine.handleFlagWithParam("search", false);
if (searchParam) {
doSearch(searchParam, cmdLine);
cmdLine.preventDefault = true;
}
var fileParam = cmdLine.handleFlagWithParam("file", false);
if (fileParam) {
var file = cmdLine.resolveFile(fileParam);
var ios = Components.classes["@mozilla.org/network/io-service;1"]
.getService(Components.interfaces.nsIIOService);
var uri = ios.newFileURI(file);
openWindow(null, this.chromeURL, "_blank",
"chrome,dialog=no,all" + this.getFeatures(cmdLine),
uri.spec);
cmdLine.preventDefault = true;
}
#ifdef XP_WIN
// Handle "? searchterm" for Windows Vista start menu integration
for (var i = cmdLine.length - 1; i >= 0; --i) {
var param = cmdLine.getArgument(i);
if (param.match(/^\? /)) {
cmdLine.removeArguments(i, i);
cmdLine.preventDefault = true;
searchParam = param.substr(2);
doSearch(searchParam, cmdLine);
}
}
#endif
},
helpInfo : " -browser Open a browser window.\n" +
" -new-window <url> Open <url> in a new window.\n" +
" -new-tab <url> Open <url> in a new tab.\n" +
#ifdef XP_WIN
" -preferences Open Options dialog.\n" +
#else
" -preferences Open Preferences dialog.\n" +
#endif
" -search <term> Search <term> with your default search engine.\n",
/* nsIBrowserHandler */
get defaultArgs() {
var prefb = Components.classes["@mozilla.org/preferences-service;1"]
.getService(nsIPrefBranch);
var overridePage = "";
var haveUpdateSession = false;
try {
// Read the old value of homepage_override.mstone before
// needHomepageOverride updates it, so that we can later add it to the
// URL if we do end up showing an overridePage. This makes it possible
// to have the overridePage's content vary depending on the version we're
// upgrading from.
let old_mstone = "unknown";
try {
old_mstone = Services.prefs.getCharPref("browser.startup.homepage_override.mstone");
} catch (ex) {}
let override = needHomepageOverride(prefb);
if (override != OVERRIDE_NONE) {
// Setup the default search engine to about:home page.
AboutHomeUtils.loadDefaultSearchEngine();
AboutHomeUtils.loadSnippetsURL();
switch (override) {
case OVERRIDE_NEW_PROFILE:
// New profile.
overridePage = Services.urlFormatter.formatURLPref("startup.homepage_welcome_url");
break;
case OVERRIDE_NEW_MSTONE:
// Existing profile, new milestone build.
copyPrefOverride();
// Check whether we have a session to restore. If we do, we assume
// that this is an "update" session.
var ss = Components.classes["@mozilla.org/browser/sessionstartup;1"]
.getService(Components.interfaces.nsISessionStartup);
haveUpdateSession = ss.doRestore();
overridePage = Services.urlFormatter.formatURLPref("startup.homepage_override_url");
if (prefb.prefHasUserValue("app.update.postupdate"))
overridePage = getPostUpdateOverridePage(overridePage);
overridePage = overridePage.replace("%OLD_VERSION%", old_mstone);
break;
}
}
else {
// No need to override homepage, but update snippets url if the pref has
// been manually changed.
if (Services.prefs.prefHasUserValue(AboutHomeUtils.SNIPPETS_URL_PREF)) {
AboutHomeUtils.loadSnippetsURL();
}
}
} catch (ex) {}
// formatURLPref might return "about:blank" if getting the pref fails
if (overridePage == "about:blank")
overridePage = "";
var startPage = "";
try {
var choice = prefb.getIntPref("browser.startup.page");
if (choice == 1 || choice == 3)
startPage = this.startPage;
} catch (e) {
Components.utils.reportError(e);
}
if (startPage == "about:blank")
startPage = "";
// Only show the startPage if we're not restoring an update session.
if (overridePage && startPage && !haveUpdateSession)
return overridePage + "|" + startPage;
return overridePage || startPage || "about:blank";
},
get startPage() {
var uri = Services.prefs.getComplexValue("browser.startup.homepage",
nsIPrefLocalizedString).data;
if (!uri) {
Services.prefs.clearUserPref("browser.startup.homepage");
uri = Services.prefs.getComplexValue("browser.startup.homepage",
nsIPrefLocalizedString).data;
}
return uri;
},
mFeatures : null,
getFeatures : function bch_features(cmdLine) {
if (this.mFeatures === null) {
this.mFeatures = "";
try {
var width = cmdLine.handleFlagWithParam("width", false);
var height = cmdLine.handleFlagWithParam("height", false);
if (width)
this.mFeatures += ",width=" + width;
if (height)
this.mFeatures += ",height=" + height;
}
catch (e) {
}
}
return this.mFeatures;
},
/* nsIContentHandler */
handleContent : function bch_handleContent(contentType, context, request) {
try {
var webNavInfo = Components.classes["@mozilla.org/webnavigation-info;1"]
.getService(nsIWebNavigationInfo);
if (!webNavInfo.isTypeSupported(contentType, null)) {
throw NS_ERROR_WONT_HANDLE_CONTENT;
}
} catch (e) {
throw NS_ERROR_WONT_HANDLE_CONTENT;
}
request.QueryInterface(nsIChannel);
handURIToExistingBrowser(request.URI,
nsIBrowserDOMWindow.OPEN_DEFAULTWINDOW, null);
request.cancel(NS_BINDING_ABORTED);
},
/* nsICommandLineValidator */
validate : function bch_validate(cmdLine) {
// Other handlers may use osint so only handle the osint flag if the url
// flag is also present and the command line is valid.
var osintFlagIdx = cmdLine.findFlag("osint", false);
var urlFlagIdx = cmdLine.findFlag("url", false);
if (urlFlagIdx > -1 && (osintFlagIdx > -1 ||
cmdLine.state == nsICommandLine.STATE_REMOTE_EXPLICIT)) {
var urlParam = cmdLine.getArgument(urlFlagIdx + 1);
if (cmdLine.length != urlFlagIdx + 2 || /firefoxurl:/.test(urlParam))
throw NS_ERROR_ABORT;
cmdLine.handleFlag("osint", false)
}
},
};
var gBrowserContentHandler = new nsBrowserContentHandler();
function handURIToExistingBrowser(uri, location, cmdLine)
{
if (!shouldLoadURI(uri))
return;
var navWin = getMostRecentBrowserWindow();
if (!navWin) {
// if we couldn't load it in an existing window, open a new one
openWindow(null, gBrowserContentHandler.chromeURL, "_blank",
"chrome,dialog=no,all" + gBrowserContentHandler.getFeatures(cmdLine),
uri.spec);
return;
}
var navNav = navWin.QueryInterface(nsIInterfaceRequestor)
.getInterface(nsIWebNavigation);
var rootItem = navNav.QueryInterface(nsIDocShellTreeItem).rootTreeItem;
var rootWin = rootItem.QueryInterface(nsIInterfaceRequestor)
.getInterface(nsIDOMWindow);
var bwin = rootWin.QueryInterface(nsIDOMChromeWindow).browserDOMWindow;
bwin.openURI(uri, null, location,
nsIBrowserDOMWindow.OPEN_EXTERNAL);
}
function nsDefaultCommandLineHandler() {
}
nsDefaultCommandLineHandler.prototype = {
classID: Components.ID("{47cd0651-b1be-4a0f-b5c4-10e5a573ef71}"),
/* nsISupports */
QueryInterface : function dch_QI(iid) {
if (!iid.equals(nsISupports) &&
!iid.equals(nsICommandLineHandler))
throw Components.results.NS_ERROR_NO_INTERFACE;
return this;
},
#ifdef XP_WIN
_haveProfile: false,
#endif
/* nsICommandLineHandler */
handle : function dch_handle(cmdLine) {
var urilist = [];
#ifdef XP_WIN
// If we don't have a profile selected yet (e.g. the Profile Manager is
// displayed) we will crash if we open an url and then select a profile. To
// prevent this handle all url command line flags and set the command line's
// preventDefault to true to prevent the display of the ui. The initial
// command line will be retained when nsAppRunner calls LaunchChild though
// urls launched after the initial launch will be lost.
if (!this._haveProfile) {
try {
// This will throw when a profile has not been selected.
var fl = Components.classes["@mozilla.org/file/directory_service;1"]
.getService(Components.interfaces.nsIProperties);
var dir = fl.get("ProfD", Components.interfaces.nsILocalFile);
this._haveProfile = true;
}
catch (e) {
while ((ar = cmdLine.handleFlagWithParam("url", false))) { }
cmdLine.preventDefault = true;
}
}
#endif
try {
var ar;
while ((ar = cmdLine.handleFlagWithParam("url", false))) {
var uri = resolveURIInternal(cmdLine, ar);
urilist.push(uri);
}
}
catch (e) {
Components.utils.reportError(e);
}
count = cmdLine.length;
for (i = 0; i < count; ++i) {
var curarg = cmdLine.getArgument(i);
if (curarg.match(/^-/)) {
Components.utils.reportError("Warning: unrecognized command line flag " + curarg + "\n");
// To emulate the pre-nsICommandLine behavior, we ignore
// the argument after an unrecognized flag.
++i;
} else {
try {
urilist.push(resolveURIInternal(cmdLine, curarg));
}
catch (e) {
Components.utils.reportError("Error opening URI '" + curarg + "' from the command line: " + e + "\n");
}
}
}
if (urilist.length) {
if (cmdLine.state != nsICommandLine.STATE_INITIAL_LAUNCH &&
urilist.length == 1) {
// Try to find an existing window and load our URI into the
// current tab, new tab, or new window as prefs determine.
try {
handURIToExistingBrowser(urilist[0], nsIBrowserDOMWindow.OPEN_DEFAULTWINDOW, cmdLine);
return;
}
catch (e) {
}
}
var URLlist = urilist.filter(shouldLoadURI).map(function (u) u.spec);
if (URLlist.length) {
openWindow(null, gBrowserContentHandler.chromeURL, "_blank",
"chrome,dialog=no,all" + gBrowserContentHandler.getFeatures(cmdLine),
URLlist);
}
}
else if (!cmdLine.preventDefault) {
// Passing defaultArgs, so use NO_EXTERNAL_URIS
openWindow(null, gBrowserContentHandler.chromeURL, "_blank",
"chrome,dialog=no,all" + gBrowserContentHandler.getFeatures(cmdLine),
gBrowserContentHandler.defaultArgs, NO_EXTERNAL_URIS);
}
},
helpInfo : "",
};
let AboutHomeUtils = {
SNIPPETS_URL_PREF: "browser.aboutHomeSnippets.updateUrl",
get _storage() {
let aboutHomeURI = Services.io.newURI("moz-safe-about:home", null, null);
let principal = Components.classes["@mozilla.org/scriptsecuritymanager;1"].
getService(Components.interfaces.nsIScriptSecurityManager).
getCodebasePrincipal(aboutHomeURI);
let dsm = Components.classes["@mozilla.org/dom/storagemanager;1"].
getService(Components.interfaces.nsIDOMStorageManager);
return dsm.getLocalStorageForPrincipal(principal, "");
},
loadDefaultSearchEngine: function AHU_loadDefaultSearchEngine()
{
let defaultEngine = Services.search.originalDefaultEngine;
let submission = defaultEngine.getSubmission("_searchTerms_");
if (submission.postData)
throw new Error("Home page does not support POST search engines.");
let engine = {
name: defaultEngine.name
, searchUrl: submission.uri.spec
}
this._storage.setItem("search-engine", JSON.stringify(engine));
},
loadSnippetsURL: function AHU_loadSnippetsURL()
{
const STARTPAGE_VERSION = 3;
let updateURL = Services.prefs
.getCharPref(this.SNIPPETS_URL_PREF)
.replace("%STARTPAGE_VERSION%", STARTPAGE_VERSION);
updateURL = Services.urlFormatter.formatURL(updateURL);
this._storage.setItem("snippets-update-url", updateURL);
},
};
var components = [nsBrowserContentHandler, nsDefaultCommandLineHandler];
var NSGetFactory = XPCOMUtils.generateNSGetFactory(components);