gecko/extensions/cookie/nsPopupWindowManager.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** 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 mozilla.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 2002
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* 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 ***** */
#include "nsPopupWindowManager.h"
#include "nsCRT.h"
#include "nsIServiceManager.h"
#include "nsIPrefService.h"
#include "nsIPrefBranch.h"
#include "nsIPrefBranch2.h"
/**
* The Popup Window Manager maintains popup window permissions by website.
*/
static const char kPopupDisablePref[] = "dom.disable_open_during_load";
//*****************************************************************************
//*** nsPopupWindowManager object management and nsISupports
//*****************************************************************************
nsPopupWindowManager::nsPopupWindowManager() :
mPolicy(ALLOW_POPUP)
{
}
nsPopupWindowManager::~nsPopupWindowManager()
{
}
NS_IMPL_ISUPPORTS3(nsPopupWindowManager,
nsIPopupWindowManager,
nsIObserver,
nsSupportsWeakReference)
nsresult
nsPopupWindowManager::Init()
{
nsresult rv;
mPermissionManager = do_GetService(NS_PERMISSIONMANAGER_CONTRACTID);
nsCOMPtr<nsIPrefBranch2> prefBranch =
do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv)) {
PRBool permission;
rv = prefBranch->GetBoolPref(kPopupDisablePref, &permission);
if (NS_FAILED(rv)) {
permission = PR_TRUE;
}
mPolicy = permission ? (PRUint32) DENY_POPUP : (PRUint32) ALLOW_POPUP;
prefBranch->AddObserver(kPopupDisablePref, this, PR_TRUE);
}
return NS_OK;
}
//*****************************************************************************
//*** nsPopupWindowManager::nsIPopupWindowManager
//*****************************************************************************
NS_IMETHODIMP
nsPopupWindowManager::TestPermission(nsIURI *aURI, PRUint32 *aPermission)
{
NS_ENSURE_ARG_POINTER(aURI);
NS_ENSURE_ARG_POINTER(aPermission);
nsresult rv;
PRUint32 permit;
*aPermission = mPolicy;
if (mPermissionManager) {
rv = mPermissionManager->TestPermission(aURI, "popup", &permit);
if (NS_SUCCEEDED(rv)) {
// Share some constants between interfaces?
if (permit == nsIPermissionManager::ALLOW_ACTION) {
*aPermission = ALLOW_POPUP;
} else if (permit == nsIPermissionManager::DENY_ACTION) {
*aPermission = DENY_POPUP;
}
}
}
return NS_OK;
}
//*****************************************************************************
//*** nsPopupWindowManager::nsIObserver
//*****************************************************************************
NS_IMETHODIMP
nsPopupWindowManager::Observe(nsISupports *aSubject,
const char *aTopic,
const PRUnichar *aData)
{
nsCOMPtr<nsIPrefBranch> prefBranch = do_QueryInterface(aSubject);
NS_ASSERTION(!nsCRT::strcmp(NS_PREFBRANCH_PREFCHANGE_TOPIC_ID, aTopic),
"unexpected topic - we only deal with pref changes!");
if (prefBranch) {
// refresh our local copy of the "disable popups" pref
PRBool permission = PR_TRUE;
prefBranch->GetBoolPref(kPopupDisablePref, &permission);
mPolicy = permission ? (PRUint32) DENY_POPUP : (PRUint32) ALLOW_POPUP;
}
return NS_OK;
}