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/*
* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.sufficientlysecure.keychain.ui.dialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.provider.DocumentsContract;
import android.support.v4.app.DialogFragment;
import android.support.v4.app.FragmentActivity;
import android.widget.Toast;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.util.FileHelper;
import org.sufficientlysecure.keychain.util.Log;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
public class DeleteFileDialogFragment extends DialogFragment {
private static final String ARG_DELETE_URIS = "delete_uris";
private OnDeletedListener onDeletedListener;
/**
* Creates new instance of this delete file dialog fragment
*/
public static DeleteFileDialogFragment newInstance(ArrayList<Uri> deleteUris) {
DeleteFileDialogFragment frag = new DeleteFileDialogFragment();
Bundle args = new Bundle();
args.putParcelableArrayList(ARG_DELETE_URIS, deleteUris);
frag.setArguments(args);
return frag;
}
public static DeleteFileDialogFragment newInstance(Uri deleteUri) {
DeleteFileDialogFragment frag = new DeleteFileDialogFragment();
Bundle args = new Bundle();
ArrayList<Uri> list = new ArrayList<>();
list.add(deleteUri);
args.putParcelableArrayList(ARG_DELETE_URIS, list);
frag.setArguments(args);
return frag;
}
/**
* Creates dialog
*/
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
final FragmentActivity activity = getActivity();
final ArrayList<Uri> deleteUris = getArguments().getParcelableArrayList(ARG_DELETE_URIS);
final StringBuilder deleteFileNames = new StringBuilder();
//Retrieving file names after deletion gives unexpected results
final HashMap<Uri, String> deleteFileNameMap = new HashMap<>();
for (Uri deleteUri : deleteUris) {
String deleteFileName = FileHelper.getFilename(getActivity(), deleteUri);
deleteFileNames.append('\n').append(deleteFileName);
deleteFileNameMap.put(deleteUri, deleteFileName);
}
CustomAlertDialogBuilder alert = new CustomAlertDialogBuilder(activity);
alert.setTitle(getString(R.string.file_delete_confirmation_title));
alert.setMessage(getString(R.string.file_delete_confirmation, deleteFileNames.toString()));
alert.setPositiveButton(R.string.btn_delete, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
dismiss();
ArrayList<String> failedFileNameList = new ArrayList<>();
for (Uri deleteUri : deleteUris) {
// Use DocumentsContract on Android >= 4.4
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
try {
if (DocumentsContract.deleteDocument(getActivity().getContentResolver(), deleteUri)) {
continue;
}
} catch (Exception e) {
Log.d(Constants.TAG, "Catched Exception, can happen when delete is not supported!", e);
}
}
try {
if (getActivity().getContentResolver().delete(deleteUri, null, null) > 0) {
continue;
}
} catch (Exception e) {
Log.d(Constants.TAG, "Catched Exception, can happen when delete is not supported!", e);
}
// some Uri's a ContentResolver fails to delete is handled by the java.io.File's delete
// via the path of the Uri
if (new File(deleteUri.getPath()).delete()) {
continue;
}
// Note: We can't delete every file...
failedFileNameList.add(deleteFileNameMap.get(deleteUri));
}
StringBuilder failedFileNames = new StringBuilder();
if (!failedFileNameList.isEmpty()) {
for (String failedFileName : failedFileNameList) {
failedFileNames.append('\n').append(failedFileName);
}
failedFileNames.append('\n').append(getActivity().getString(R.string.error_file_delete_failed));
}
// NOTE: Use Toasts, not Snackbars. When sharing to another application snackbars
// would not show up!
Toast.makeText(getActivity(), getActivity().getString(R.string.file_delete_successful,
deleteUris.size() - failedFileNameList.size(), deleteUris.size(), failedFileNames.toString()),
Toast.LENGTH_LONG).show();
if (onDeletedListener != null) {
onDeletedListener.onDeleted();
}
}
});
alert.setNegativeButton(android.R.string.cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dismiss();
}
});
alert.setCancelable(true);
return alert.show();
}
public void setOnDeletedListener(OnDeletedListener onDeletedListener) {
this.onDeletedListener = onDeletedListener;
}
/**
* Callback for performing tasks after the deletion of files
*/
public interface OnDeletedListener {
public void onDeleted();
}
}
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