RetroZilla/toolkit/xre/nsEmbedFunctions.cpp

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2015-10-21 05:03:22 +02:00
/* ***** 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 libXUL embedding.
*
* The Initial Developer of the Original Code is
* Benjamin Smedberg <benjamin@smedbergs.us>
*
* Portions created by the Initial Developer are Copyright (C) 2005
* the Mozilla Foundation. 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 "nsXULAppAPI.h"
#include <stdlib.h>
#include "nsIAppStartupNotifier.h"
#include "nsIDirectoryService.h"
#include "nsIEventQueueService.h"
#include "nsILocalFile.h"
#include "nsIToolkitChromeRegistry.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsArrayEnumerator.h"
#include "nsCOMArray.h"
#include "nsDirectoryServiceDefs.h"
#include "nsEnumeratorUtils.h"
#include "nsStaticComponents.h"
#include "nsString.h"
class nsEmbeddingDirProvider : public nsIDirectoryServiceProvider2
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIDIRECTORYSERVICEPROVIDER
NS_DECL_NSIDIRECTORYSERVICEPROVIDER2
nsEmbeddingDirProvider(nsILocalFile* aGREDir,
nsILocalFile* aAppDir,
nsIDirectoryServiceProvider* aAppProvider) :
mGREDir(aGREDir),
mAppDir(aAppDir),
mAppProvider(aAppProvider) { }
private:
nsCOMPtr<nsILocalFile> mGREDir;
nsCOMPtr<nsILocalFile> mAppDir;
nsCOMPtr<nsIDirectoryServiceProvider> mAppProvider;
};
NS_IMPL_ISUPPORTS2(nsEmbeddingDirProvider,
nsIDirectoryServiceProvider,
nsIDirectoryServiceProvider2)
NS_IMETHODIMP
nsEmbeddingDirProvider::GetFile(const char *aProperty, PRBool *aPersistent,
nsIFile* *aFile)
{
nsresult rv;
if (mAppProvider) {
rv = mAppProvider->GetFile(aProperty, aPersistent, aFile);
if (NS_SUCCEEDED(rv) && *aFile)
return rv;
}
if (!strcmp(aProperty, NS_OS_CURRENT_PROCESS_DIR) ||
!strcmp(aProperty, NS_APP_INSTALL_CLEANUP_DIR)) {
// NOTE: this is *different* than NS_XPCOM_CURRENT_PROCESS_DIR. This points
// to the application dir. NS_XPCOM_CURRENT_PROCESS_DIR points to the toolkit.
return mAppDir->Clone(aFile);
}
if (!strcmp(aProperty, NS_GRE_DIR)) {
return mGREDir->Clone(aFile);
}
if (!strcmp(aProperty, NS_APP_PREF_DEFAULTS_50_DIR))
{
nsCOMPtr<nsIFile> file;
rv = mAppDir->Clone(getter_AddRefs(file));
NS_ENSURE_SUCCESS(rv, rv);
rv = file->AppendNative(NS_LITERAL_CSTRING("defaults"));
NS_ENSURE_SUCCESS(rv, rv);
rv = file->AppendNative(NS_LITERAL_CSTRING("pref"));
NS_ENSURE_SUCCESS(rv, rv);
NS_ADDREF(*aFile = file);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
NS_IMETHODIMP
nsEmbeddingDirProvider::GetFiles(const char* aProperty,
nsISimpleEnumerator** aResult)
{
nsresult rv;
nsCOMPtr<nsISimpleEnumerator> appEnum;
nsCOMPtr<nsIDirectoryServiceProvider2> appP2
(do_QueryInterface(mAppProvider));
if (appP2) {
rv = appP2->GetFiles(aProperty, getter_AddRefs(appEnum));
if (NS_SUCCEEDED(rv) && rv != NS_SUCCESS_AGGREGATE_RESULT) {
NS_ADDREF(*aResult = appEnum);
return NS_OK;
}
}
nsCOMArray<nsIFile> dirs;
if (!strcmp(aProperty, NS_CHROME_MANIFESTS_FILE_LIST) ||
!strcmp(aProperty, NS_APP_CHROME_DIR_LIST)) {
nsCOMPtr<nsIFile> manifest;
mGREDir->Clone(getter_AddRefs(manifest));
manifest->AppendNative(NS_LITERAL_CSTRING("chrome"));
dirs.AppendObject(manifest);
mAppDir->Clone(getter_AddRefs(manifest));
manifest->AppendNative(NS_LITERAL_CSTRING("chrome"));
dirs.AppendObject(manifest);
}
if (dirs.Count()) {
nsCOMPtr<nsISimpleEnumerator> thisEnum;
rv = NS_NewArrayEnumerator(getter_AddRefs(thisEnum), dirs);
NS_ENSURE_SUCCESS(rv, rv);
if (appEnum) {
return NS_NewUnionEnumerator(aResult, appEnum, thisEnum);
}
NS_ADDREF(*aResult = thisEnum);
return NS_OK;
}
if (appEnum) {
NS_ADDREF(*aResult = appEnum);
return NS_OK;
}
return NS_ERROR_FAILURE;
}
void
XRE_GetStaticComponents(nsStaticModuleInfo const **aStaticComponents,
PRUint32 *aComponentCount)
{
*aStaticComponents = kPStaticModules;
*aComponentCount = kStaticModuleCount;
}
static nsStaticModuleInfo *sCombined;
static PRInt32 sInitCounter;
nsresult
XRE_InitEmbedding(nsILocalFile *aLibXULDirectory,
nsILocalFile *aAppDirectory,
nsIDirectoryServiceProvider *aAppDirProvider,
nsStaticModuleInfo const *aStaticComponents,
PRUint32 aStaticComponentCount)
{
if (++sInitCounter > 1)
return NS_OK;
NS_ENSURE_ARG(aLibXULDirectory);
NS_ENSURE_ARG(aAppDirectory);
nsresult rv;
nsCOMPtr<nsIDirectoryServiceProvider> dirSvc
(new nsEmbeddingDirProvider(aLibXULDirectory,
aAppDirectory,
aAppDirProvider));
if (!dirSvc)
return NS_ERROR_OUT_OF_MEMORY;
// Combine the toolkit static components and the app components.
PRUint32 combinedCount = kStaticModuleCount + aStaticComponentCount;
sCombined = new nsStaticModuleInfo[combinedCount];
if (!sCombined)
return NS_ERROR_OUT_OF_MEMORY;
memcpy(sCombined, kPStaticModules,
sizeof(nsStaticModuleInfo) * kStaticModuleCount);
memcpy(sCombined + kStaticModuleCount, aStaticComponents,
sizeof(nsStaticModuleInfo) * aStaticComponentCount);
rv = NS_InitXPCOM3(nsnull, aAppDirectory, dirSvc,
sCombined, combinedCount);
if (NS_FAILED(rv))
return rv;
// We do not need to autoregister components here. The CheckUpdateFile()
// bits in NS_InitXPCOM3 check for an .autoreg file. If the app wants
// to autoregister every time (for instance, if it's debug), it can do
// so after we return from this function.
nsCOMPtr<nsIEventQueueService> eventQService
(do_GetService(NS_EVENTQUEUESERVICE_CONTRACTID, &rv));
if (NS_FAILED(rv))
return rv;
rv = eventQService->CreateThreadEventQueue();
if (NS_FAILED(rv))
return rv;
nsCOMPtr<nsIObserver> startupNotifier
(do_CreateInstance(NS_APPSTARTUPNOTIFIER_CONTRACTID));
if (!startupNotifier)
return NS_ERROR_FAILURE;
startupNotifier->Observe(nsnull, APPSTARTUP_TOPIC, nsnull);
return NS_OK;
}
void
XRE_TermEmbedding()
{
if (--sInitCounter != 0)
return;
NS_ShutdownXPCOM(nsnull);
delete [] sCombined;
}