michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #include "nsPopupWindowManager.h"
michael@0: 
michael@0: #include "nsCRT.h"
michael@0: #include "nsIServiceManager.h"
michael@0: #include "nsIPrefService.h"
michael@0: #include "nsIPrefBranch.h"
michael@0: #include "nsIPrincipal.h"
michael@0: #include "nsIURI.h"
michael@0: 
michael@0: /**
michael@0:  * The Popup Window Manager maintains popup window permissions by website.
michael@0:  */
michael@0: 
michael@0: static const char kPopupDisablePref[] = "dom.disable_open_during_load";
michael@0: 
michael@0: //*****************************************************************************
michael@0: //*** nsPopupWindowManager object management and nsISupports
michael@0: //*****************************************************************************
michael@0: 
michael@0: nsPopupWindowManager::nsPopupWindowManager() :
michael@0:   mPolicy(ALLOW_POPUP)
michael@0: {
michael@0: }
michael@0: 
michael@0: nsPopupWindowManager::~nsPopupWindowManager()
michael@0: {
michael@0: }
michael@0: 
michael@0: NS_IMPL_ISUPPORTS(nsPopupWindowManager, 
michael@0:                   nsIPopupWindowManager,
michael@0:                   nsIObserver,
michael@0:                   nsISupportsWeakReference)
michael@0: 
michael@0: nsresult
michael@0: nsPopupWindowManager::Init()
michael@0: {
michael@0:   nsresult rv;
michael@0:   mPermissionManager = do_GetService(NS_PERMISSIONMANAGER_CONTRACTID);
michael@0: 
michael@0:   nsCOMPtr<nsIPrefBranch> prefBranch =
michael@0:     do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
michael@0:   if (NS_SUCCEEDED(rv)) {
michael@0:     bool permission;
michael@0:     rv = prefBranch->GetBoolPref(kPopupDisablePref, &permission);
michael@0:     if (NS_FAILED(rv)) {
michael@0:       permission = true;
michael@0:     }
michael@0:     mPolicy = permission ? (uint32_t) DENY_POPUP : (uint32_t) ALLOW_POPUP;
michael@0: 
michael@0:     prefBranch->AddObserver(kPopupDisablePref, this, true);
michael@0:   } 
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: //*****************************************************************************
michael@0: //*** nsPopupWindowManager::nsIPopupWindowManager
michael@0: //*****************************************************************************
michael@0: 
michael@0: NS_IMETHODIMP
michael@0: nsPopupWindowManager::TestPermission(nsIPrincipal* aPrincipal,
michael@0:                                      uint32_t *aPermission)
michael@0: {
michael@0:   NS_ENSURE_ARG_POINTER(aPrincipal);
michael@0:   NS_ENSURE_ARG_POINTER(aPermission);
michael@0: 
michael@0:   uint32_t permit;
michael@0:   *aPermission = mPolicy;
michael@0: 
michael@0:   if (mPermissionManager) {
michael@0:     if (NS_SUCCEEDED(mPermissionManager->TestPermissionFromPrincipal(aPrincipal, "popup", &permit))) {
michael@0:       // Share some constants between interfaces?
michael@0:       if (permit == nsIPermissionManager::ALLOW_ACTION) {
michael@0:         *aPermission = ALLOW_POPUP;
michael@0:       } else if (permit == nsIPermissionManager::DENY_ACTION) {
michael@0:         *aPermission = DENY_POPUP;
michael@0:       }
michael@0:     }
michael@0:   }
michael@0: 
michael@0:   return NS_OK;
michael@0: }
michael@0: 
michael@0: //*****************************************************************************
michael@0: //*** nsPopupWindowManager::nsIObserver
michael@0: //*****************************************************************************
michael@0: NS_IMETHODIMP
michael@0: nsPopupWindowManager::Observe(nsISupports *aSubject, 
michael@0:                               const char *aTopic,
michael@0:                               const char16_t *aData)
michael@0: {
michael@0:   nsCOMPtr<nsIPrefBranch> prefBranch = do_QueryInterface(aSubject);
michael@0:   NS_ASSERTION(!nsCRT::strcmp(NS_PREFBRANCH_PREFCHANGE_TOPIC_ID, aTopic),
michael@0:                "unexpected topic - we only deal with pref changes!");
michael@0: 
michael@0:   if (prefBranch) {
michael@0:     // refresh our local copy of the "disable popups" pref
michael@0:     bool permission = true;
michael@0:     prefBranch->GetBoolPref(kPopupDisablePref, &permission);
michael@0: 
michael@0:     mPolicy = permission ? (uint32_t) DENY_POPUP : (uint32_t) ALLOW_POPUP;
michael@0:   }
michael@0: 
michael@0:   return NS_OK;
michael@0: }