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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.helper;
import android.annotation.TargetApi;
import android.app.Activity;
import android.content.ActivityNotFoundException;
import android.content.Context;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.support.v4.app.Fragment;
import android.widget.Toast;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.util.Log;
public class FileHelper {
/**
* Checks if external storage is mounted if file is located on external storage
*
* @param file
* @return true if storage is mounted
*/
public static boolean isStorageMounted(String file) {
if (file.startsWith(Environment.getExternalStorageDirectory().getAbsolutePath())) {
if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
return false;
}
}
return true;
}
/**
* Opens the preferred installed file manager on Android and shows a toast if no manager is
* installed.
*
* @param activity
* @param filename default selected file, not supported by all file managers
* @param mimeType can be text/plain for example
* @param requestCode requestCode used to identify the result coming back from file manager to
* onActivityResult() in your activity
*/
public static void openFile(Activity activity, String filename, String mimeType, int requestCode) {
Intent intent = buildFileIntent(filename, mimeType);
try {
activity.startActivityForResult(intent, requestCode);
} catch (ActivityNotFoundException e) {
// No compatible file manager was found.
Toast.makeText(activity, R.string.no_filemanager_installed, Toast.LENGTH_SHORT).show();
}
}
public static void openFile(Fragment fragment, String filename, String mimeType, int requestCode) {
Intent intent = buildFileIntent(filename, mimeType);
try {
fragment.startActivityForResult(intent, requestCode);
} catch (ActivityNotFoundException e) {
// No compatible file manager was found.
Toast.makeText(fragment.getActivity(), R.string.no_filemanager_installed,
Toast.LENGTH_SHORT).show();
}
}
/**
* Opens the storage browser on Android 4.4 or later for opening a file
* @param fragment
* @param last default selected file
* @param mimeType can be text/plain for example
* @param requestCode used to identify the result coming back from storage browser onActivityResult() in your
*/
@TargetApi(Build.VERSION_CODES.KITKAT)
public static void openDocument(Fragment fragment, Uri last, String mimeType, int requestCode) {
Intent intent = new Intent(Intent.ACTION_OPEN_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setData(last);
intent.setType(mimeType);
fragment.startActivityForResult(intent, requestCode);
}
/**
* Opens the storage browser on Android 4.4 or later for saving a file
* @param fragment
* @param last default selected file
* @param mimeType can be text/plain for example
* @param requestCode used to identify the result coming back from storage browser onActivityResult() in your
*/
@TargetApi(Build.VERSION_CODES.KITKAT)
public static void saveDocument(Fragment fragment, Uri last, String mimeType, int requestCode) {
Intent intent = new Intent(Intent.ACTION_CREATE_DOCUMENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setData(last);
intent.setType(mimeType);
fragment.startActivityForResult(intent, requestCode);
}
private static Intent buildFileIntent(String filename, String mimeType) {
Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
intent.addCategory(Intent.CATEGORY_OPENABLE);
intent.setData(Uri.parse("file://" + filename));
intent.setType(mimeType);
return intent;
}
/**
* Get a file path from a Uri.
* <p/>
* from https://github.com/iPaulPro/aFileChooser/blob/master/aFileChooser/src/com/ipaulpro/
* afilechooser/utils/FileUtils.java
*
* @param context
* @param uri
* @return
* @author paulburke
*/
public static String getPath(Context context, Uri uri) {
Log.d(Constants.TAG + " File -",
"Authority: " + uri.getAuthority() + ", Fragment: " + uri.getFragment()
+ ", Port: " + uri.getPort() + ", Query: " + uri.getQuery() + ", Scheme: "
+ uri.getScheme() + ", Host: " + uri.getHost() + ", Segments: "
+ uri.getPathSegments().toString());
if ("content".equalsIgnoreCase(uri.getScheme())) {
String[] projection = {"_data"};
Cursor cursor = context.getContentResolver().query(uri, projection, null, null, null);
try {
if (cursor != null && cursor.moveToFirst()) {
int columnIndex = cursor.getColumnIndexOrThrow("_data");
return cursor.getString(columnIndex);
}
} catch (Exception e) {
// Eat it
} finally {
if (cursor != null) {
cursor.close();
}
}
} else if ("file".equalsIgnoreCase(uri.getScheme())) {
return uri.getPath();
}
return null;
}
}
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