Mozilla/mozilla/extensions/java/xpcom/nsAppFileLocProviderProxy.cpp
pedemont%us.ibm.com b5d494f904 Bug 270889 - Better error handling. r=darin
git-svn-id: svn://10.0.0.236/trunk@167603 18797224-902f-48f8-a5cc-f745e15eee43
2005-01-12 17:59:01 +00:00

110 lines
3.8 KiB
C++

/* ***** 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 Java XPCOM Bindings.
*
* The Initial Developer of the Original Code is
* IBM Corporation.
* Portions created by the Initial Developer are Copyright (C) 2004
* IBM Corporation. All Rights Reserved.
*
* Contributor(s):
* Javier Pedemonte (jhpedemonte@gmail.com)
*
* 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 "nsAppFileLocProviderProxy.h"
#include "nsILocalFile.h"
#include "nsJavaXPCOMBindingUtils.h"
nsAppFileLocProviderProxy::nsAppFileLocProviderProxy(JNIEnv* env,
jobject aJavaObject)
: mJavaEnv(env)
{
mJavaLocProvider = mJavaEnv->NewGlobalRef(aJavaObject);
}
nsAppFileLocProviderProxy::~nsAppFileLocProviderProxy()
{
mJavaEnv->DeleteGlobalRef(mJavaLocProvider);
}
NS_IMPL_ISUPPORTS1(nsAppFileLocProviderProxy, nsIDirectoryServiceProvider)
// nsIDirectoryServiceProvider
NS_IMETHODIMP
nsAppFileLocProviderProxy::GetFile(const char* aProp, PRBool* aIsPersistant,
nsIFile** aResult)
{
// Setup params for calling Java function
jstring prop = mJavaEnv->NewStringUTF(aProp);
if (!prop)
return NS_ERROR_OUT_OF_MEMORY;
jbooleanArray persistant = mJavaEnv->NewBooleanArray(1);
if (!persistant)
return NS_ERROR_OUT_OF_MEMORY;
// Create method ID
jmethodID mid = nsnull;
jclass clazz = mJavaEnv->GetObjectClass(mJavaLocProvider);
if (clazz) {
mid = mJavaEnv->GetMethodID(clazz, "getFile",
"(Ljava/lang/String;[Z)Ljava/io/File;");
}
if (!mid)
return NS_ERROR_FAILURE;
// Call Java function
jobject javaFile = nsnull;
javaFile = mJavaEnv->CallObjectMethod(mJavaLocProvider, mid, prop,
persistant);
if (javaFile == nsnull || mJavaEnv->ExceptionCheck())
return NS_ERROR_FAILURE;
// Set boolean output value
jboolean isCopy = PR_FALSE;
jboolean* array = mJavaEnv->GetBooleanArrayElements(persistant, &isCopy);
if (!array) {
return NS_ERROR_OUT_OF_MEMORY;
} else {
*aIsPersistant = array[0];
if (isCopy) {
mJavaEnv->ReleaseBooleanArrayElements(persistant, array, JNI_ABORT);
}
}
// Set nsIFile result value
nsCOMPtr<nsILocalFile> localFile;
nsresult rv = File_to_nsILocalFile(mJavaEnv, javaFile,
getter_AddRefs(localFile));
if (NS_SUCCEEDED(rv)) {
return localFile->QueryInterface(NS_GET_IID(nsIFile), (void**)aResult);
}
return rv;
}