зеркало из https://github.com/mozilla/gecko-dev.git
112 строки
3.3 KiB
C++
112 строки
3.3 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "nsPopupWindowManager.h"
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#include "nsCRT.h"
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#include "nsIServiceManager.h"
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#include "nsIPrefService.h"
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#include "nsIPrefBranch.h"
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/**
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* The Popup Window Manager maintains popup window permissions by website.
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*/
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static const char kPopupDisablePref[] = "dom.disable_open_during_load";
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//*****************************************************************************
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//*** nsPopupWindowManager object management and nsISupports
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//*****************************************************************************
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nsPopupWindowManager::nsPopupWindowManager() :
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mPolicy(ALLOW_POPUP)
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{
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}
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nsPopupWindowManager::~nsPopupWindowManager()
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{
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}
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NS_IMPL_ISUPPORTS3(nsPopupWindowManager,
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nsIPopupWindowManager,
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nsIObserver,
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nsSupportsWeakReference)
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nsresult
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nsPopupWindowManager::Init()
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{
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nsresult rv;
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mPermissionManager = do_GetService(NS_PERMISSIONMANAGER_CONTRACTID);
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nsCOMPtr<nsIPrefBranch> prefBranch =
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do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
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if (NS_SUCCEEDED(rv)) {
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bool permission;
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rv = prefBranch->GetBoolPref(kPopupDisablePref, &permission);
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if (NS_FAILED(rv)) {
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permission = true;
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}
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mPolicy = permission ? (PRUint32) DENY_POPUP : (PRUint32) ALLOW_POPUP;
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prefBranch->AddObserver(kPopupDisablePref, this, true);
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}
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return NS_OK;
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}
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//*****************************************************************************
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//*** nsPopupWindowManager::nsIPopupWindowManager
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//*****************************************************************************
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NS_IMETHODIMP
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nsPopupWindowManager::TestPermission(nsIURI *aURI, PRUint32 *aPermission)
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{
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NS_ENSURE_ARG_POINTER(aURI);
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NS_ENSURE_ARG_POINTER(aPermission);
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nsresult rv;
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PRUint32 permit;
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*aPermission = mPolicy;
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if (mPermissionManager) {
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rv = mPermissionManager->TestPermission(aURI, "popup", &permit);
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if (NS_SUCCEEDED(rv)) {
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// Share some constants between interfaces?
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if (permit == nsIPermissionManager::ALLOW_ACTION) {
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*aPermission = ALLOW_POPUP;
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} else if (permit == nsIPermissionManager::DENY_ACTION) {
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*aPermission = DENY_POPUP;
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}
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}
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}
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return NS_OK;
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}
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//*****************************************************************************
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//*** nsPopupWindowManager::nsIObserver
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//*****************************************************************************
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NS_IMETHODIMP
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nsPopupWindowManager::Observe(nsISupports *aSubject,
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const char *aTopic,
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const PRUnichar *aData)
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{
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nsCOMPtr<nsIPrefBranch> prefBranch = do_QueryInterface(aSubject);
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NS_ASSERTION(!nsCRT::strcmp(NS_PREFBRANCH_PREFCHANGE_TOPIC_ID, aTopic),
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"unexpected topic - we only deal with pref changes!");
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if (prefBranch) {
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// refresh our local copy of the "disable popups" pref
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bool permission = true;
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prefBranch->GetBoolPref(kPopupDisablePref, &permission);
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mPolicy = permission ? (PRUint32) DENY_POPUP : (PRUint32) ALLOW_POPUP;
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}
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return NS_OK;
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}
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