1 files changed, 253 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/java/src/nsAppFileLocProviderProxy.cpp b/src/libs/xpcom18a4/java/src/nsAppFileLocProviderProxy.cpp
new file mode 100644
index 00000000..c10bf4c1
--- /dev/null
+++ b/src/libs/xpcom18a4/java/src/nsAppFileLocProviderProxy.cpp
@@ -0,0 +1,253 @@
+/* ***** 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) 2005
+ * 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 "nsJavaXPCOMBindingUtils.h"
+#include "nsILocalFile.h"
+#include "nsISimpleEnumerator.h"
+
+
+nsAppFileLocProviderProxy::nsAppFileLocProviderProxy(jobject aJavaObject)
+{
+  mJavaLocProvider = GetJNIEnv()->NewGlobalRef(aJavaObject);
+}
+
+nsAppFileLocProviderProxy::~nsAppFileLocProviderProxy()
+{
+  GetJNIEnv()->DeleteGlobalRef(mJavaLocProvider);
+}
+
+NS_IMPL_ISUPPORTS2(nsAppFileLocProviderProxy,
+                   nsIDirectoryServiceProvider,
+                   nsIDirectoryServiceProvider2)
+
+
+// nsIDirectoryServiceProvider
+
+NS_IMETHODIMP
+nsAppFileLocProviderProxy::GetFile(const char* aProp, PRBool* aIsPersistant,
+                                   nsIFile** aResult)
+{
+  // Setup params for calling Java function
+  JNIEnv* env = GetJNIEnv();
+  jstring prop = env->NewStringUTF(aProp);
+  if (!prop)
+    return NS_ERROR_OUT_OF_MEMORY;
+  jbooleanArray persistant = env->NewBooleanArray(1);
+  if (!persistant)
+    return NS_ERROR_OUT_OF_MEMORY;
+
+  // Create method ID
+  jmethodID mid = nsnull;
+  jclass clazz = env->GetObjectClass(mJavaLocProvider);
+  if (clazz) {
+    mid = env->GetMethodID(clazz, "getFile",
+                           "(Ljava/lang/String;[Z)Ljava/io/File;");
+  }
+  if (!mid)
+    return NS_ERROR_FAILURE;
+
+  // Call Java function
+  jobject javaFile = nsnull;
+  javaFile = env->CallObjectMethod(mJavaLocProvider, mid, prop, persistant);
+  if (javaFile == nsnull || env->ExceptionCheck())
+    return NS_ERROR_FAILURE;
+
+  // Set boolean output value
+  env->GetBooleanArrayRegion(persistant, 0, 1, (jboolean*) aIsPersistant);
+
+  // Set nsIFile result value
+  nsCOMPtr<nsILocalFile> localFile;
+  nsresult rv = File_to_nsILocalFile(env, javaFile, getter_AddRefs(localFile));
+  if (NS_SUCCEEDED(rv)) {
+    return localFile->QueryInterface(NS_GET_IID(nsIFile), (void**)aResult);
+  }
+
+  return rv;
+}
+
+
+// nsIDirectoryServiceProvider2
+
+class DirectoryEnumerator : public nsISimpleEnumerator
+{
+public:
+  NS_DECL_ISUPPORTS
+
+  DirectoryEnumerator(jobjectArray aJavaFileArray)
+    : mIndex(0)
+  {
+    JNIEnv* env = GetJNIEnv();
+    mJavaFileArray = static_cast<jobjectArray>
+                                (env->NewGlobalRef(aJavaFileArray));
+    mArraySize = env->GetArrayLength(aJavaFileArray);
+  }
+
+  ~DirectoryEnumerator()
+  {
+    GetJNIEnv()->DeleteGlobalRef(mJavaFileArray);
+  }
+
+  NS_IMETHOD HasMoreElements(PRBool* aResult)
+  {
+    if (!mJavaFileArray) {
+      *aResult = PR_FALSE;
+    } else {
+      *aResult = (mIndex < mArraySize);
+    }
+    return NS_OK;
+  }
+
+  NS_IMETHOD GetNext(nsISupports** aResult)
+  {
+    nsresult rv = NS_ERROR_FAILURE;
+
+    JNIEnv* env = GetJNIEnv();
+    jobject javaFile = env->GetObjectArrayElement(mJavaFileArray, mIndex++);
+    if (javaFile) {
+      nsCOMPtr<nsILocalFile> localFile;
+      rv = File_to_nsILocalFile(env, javaFile, getter_AddRefs(localFile));
+      env->DeleteLocalRef(javaFile);
+
+      if (NS_SUCCEEDED(rv)) {
+        return localFile->QueryInterface(NS_GET_IID(nsIFile), (void**)aResult);
+      }
+    }
+
+    env->ExceptionClear();
+    return NS_ERROR_FAILURE;
+  }
+
+private:
+  jobjectArray  mJavaFileArray;
+  PRUint32      mArraySize;
+  PRUint32      mIndex;
+};
+
+NS_IMPL_ISUPPORTS1(DirectoryEnumerator, nsISimpleEnumerator)
+
+NS_IMETHODIMP
+nsAppFileLocProviderProxy::GetFiles(const char* aProp,
+                                    nsISimpleEnumerator** aResult)
+{
+  nsresult rv = NS_OK;
+
+  // Setup params for calling Java function
+  JNIEnv* env = GetJNIEnv();
+  jstring prop = env->NewStringUTF(aProp);
+  if (!prop)
+    rv = NS_ERROR_OUT_OF_MEMORY;
+
+  // Create method ID
+  jmethodID mid = nsnull;
+  if (NS_SUCCEEDED(rv)) {
+    jclass clazz = env->GetObjectClass(mJavaLocProvider);
+    if (clazz) {
+      mid = env->GetMethodID(clazz, "getFiles",
+                             "(Ljava/lang/String;)[Ljava/io/File;");
+      env->DeleteLocalRef(clazz);
+    }
+    if (!mid)
+      rv = NS_ERROR_FAILURE;
+  }
+
+  // Call Java function
+  jobject javaFileArray = nsnull;
+  if (NS_SUCCEEDED(rv)) {
+    javaFileArray = env->CallObjectMethod(mJavaLocProvider, mid, prop);
+
+    // Handle any exception thrown by Java method.
+    jthrowable exp = env->ExceptionOccurred();
+    if (exp) {
+#ifdef DEBUG
+      env->ExceptionDescribe();
+#endif
+
+      // If the exception is an instance of XPCOMException, then get the
+      // nsresult from the exception instance.  Else, default to
+      // NS_ERROR_FAILURE.
+      if (env->IsInstanceOf(exp, xpcomExceptionClass)) {
+        jfieldID fid;
+        fid = env->GetFieldID(xpcomExceptionClass, "errorcode", "J");
+        if (fid) {
+          rv = env->GetLongField(exp, fid);
+        } else {
+          rv = NS_ERROR_FAILURE;
+        }
+        NS_ASSERTION(fid, "Couldn't get 'errorcode' field of XPCOMException");
+      } else {
+        rv = NS_ERROR_FAILURE;
+      }
+    } else {
+      // No exception thrown.  Check the result.
+      if (javaFileArray == nsnull) {
+        rv = NS_ERROR_FAILURE;
+      }
+    }
+  }
+
+  if (NS_SUCCEEDED(rv)) {
+    // Parse return value
+    *aResult = new DirectoryEnumerator(static_cast<jobjectArray>
+                                                  (javaFileArray));
+    NS_ADDREF(*aResult);
+    return NS_OK;
+  }
+
+  // Handle error conditions
+  *aResult = nsnull;
+  env->ExceptionClear();
+  return rv;
+}
+
+
+////////////////////////////////////////////////////////////////////////////////
+
+nsresult
+NS_NewAppFileLocProviderProxy(jobject aJavaLocProvider,
+                              nsIDirectoryServiceProvider** aResult)
+{
+  nsAppFileLocProviderProxy* provider =
+            new nsAppFileLocProviderProxy(aJavaLocProvider);
+  if (provider == nsnull)
+    return NS_ERROR_OUT_OF_MEMORY;
+  NS_ADDREF(provider);
+
+  *aResult = provider;
+  return NS_OK;
+}
+