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/* -*- Mode: C++; tab-width: 2; 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/. */
#include "nsPopupWindowManager.h"
#include "nsCRT.h"
#include "nsIServiceManager.h"
#include "nsIPrefService.h"
#include "nsIPrefBranch.h"
#include "nsIPrincipal.h"
#include "nsIURI.h"
#include "mozilla/Services.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_ISUPPORTS(nsPopupWindowManager,
nsIPopupWindowManager,
nsIObserver,
nsISupportsWeakReference)
nsresult
nsPopupWindowManager::Init()
{
nsresult rv;
mPermissionManager = mozilla::services::GetPermissionManager();
nsCOMPtr<nsIPrefBranch> prefBranch =
do_GetService(NS_PREFSERVICE_CONTRACTID, &rv);
if (NS_SUCCEEDED(rv)) {
bool permission;
rv = prefBranch->GetBoolPref(kPopupDisablePref, &permission);
if (NS_FAILED(rv)) {
permission = true;
}
mPolicy = permission ? (uint32_t) DENY_POPUP : (uint32_t) ALLOW_POPUP;
prefBranch->AddObserver(kPopupDisablePref, this, true);
}
return NS_OK;
}
//*****************************************************************************
//*** nsPopupWindowManager::nsIPopupWindowManager
//*****************************************************************************
NS_IMETHODIMP
nsPopupWindowManager::TestPermission(nsIPrincipal* aPrincipal,
uint32_t *aPermission)
{
NS_ENSURE_ARG_POINTER(aPrincipal);
NS_ENSURE_ARG_POINTER(aPermission);
uint32_t permit;
*aPermission = mPolicy;
if (mPermissionManager) {
if (NS_SUCCEEDED(mPermissionManager->TestPermissionFromPrincipal(aPrincipal, "popup", &permit))) {
// 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 char16_t *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
bool permission = true;
prefBranch->GetBoolPref(kPopupDisablePref, &permission);
mPolicy = permission ? (uint32_t) DENY_POPUP : (uint32_t) ALLOW_POPUP;
}
return NS_OK;
}
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