util: begin conversion to kotlin

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
This commit is contained in:
Jason A. Donenfeld 2020-03-27 02:31:45 -06:00
parent 37949ba1ec
commit 8669c01eaa
4 changed files with 102 additions and 148 deletions

View File

@ -1,40 +0,0 @@
/*
* Copyright © 2017-2019 WireGuard LLC. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0
*/
package com.wireguard.android.util;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.Context;
import android.view.View;
import android.widget.TextView;
import com.google.android.material.snackbar.Snackbar;
import com.wireguard.util.NonNullForAll;
/**
* Standalone utilities for interacting with the system clipboard.
*/
@NonNullForAll
public final class ClipboardUtils {
private ClipboardUtils() {
// Prevent instantiation
}
public static void copyTextView(final View view) {
if (!(view instanceof TextView))
return;
final CharSequence text = ((TextView) view).getText();
if (text == null || text.length() == 0)
return;
final Object service = view.getContext().getSystemService(Context.CLIPBOARD_SERVICE);
if (!(service instanceof ClipboardManager))
return;
final CharSequence description = view.getContentDescription();
((ClipboardManager) service).setPrimaryClip(ClipData.newPlainText(description, text));
Snackbar.make(view, description + " copied to clipboard", Snackbar.LENGTH_LONG).show();
}
}

View File

@ -0,0 +1,30 @@
/*
* Copyright © 2017-2019 WireGuard LLC. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0
*/
package com.wireguard.android.util
import android.content.ClipData
import android.content.ClipboardManager
import android.content.Context
import android.view.View
import android.widget.TextView
import com.google.android.material.snackbar.Snackbar
/**
* Standalone utilities for interacting with the system clipboard.
*/
object ClipboardUtils {
@JvmStatic
fun copyTextView(view: View) {
if (view !is TextView)
return
val text = view.text
if (text == null || text.length == 0) return
val service = view.getContext().getSystemService(Context.CLIPBOARD_SERVICE) as? ClipboardManager
?: return
val description = view.getContentDescription()
service.setPrimaryClip(ClipData.newPlainText(description, text))
Snackbar.make(view, "$description copied to clipboard", Snackbar.LENGTH_LONG).show()
}
}

View File

@ -1,108 +0,0 @@
/*
* Copyright © 2019 WireGuard LLC. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0
*/
package com.wireguard.android.util;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.MediaStore;
import android.provider.MediaStore.MediaColumns;
import com.wireguard.android.R;
import com.wireguard.util.NonNullForAll;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
@NonNullForAll
public final class DownloadsFileSaver {
private DownloadsFileSaver() {
// Prevent instantiation
}
public static DownloadsFile save(final Context context, final String name, final String mimeType, final boolean overwriteExisting) throws Exception {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
final ContentResolver contentResolver = context.getContentResolver();
if (overwriteExisting)
contentResolver.delete(MediaStore.Downloads.EXTERNAL_CONTENT_URI, String.format("%s = ?", MediaColumns.DISPLAY_NAME), new String[]{name});
final ContentValues contentValues = new ContentValues();
contentValues.put(MediaColumns.DISPLAY_NAME, name);
contentValues.put(MediaColumns.MIME_TYPE, mimeType);
final Uri contentUri = contentResolver.insert(MediaStore.Downloads.EXTERNAL_CONTENT_URI, contentValues);
if (contentUri == null)
throw new IOException(context.getString(R.string.create_downloads_file_error));
final OutputStream contentStream = contentResolver.openOutputStream(contentUri);
if (contentStream == null)
throw new IOException(context.getString(R.string.create_downloads_file_error));
@SuppressWarnings("deprecation")
Cursor cursor = contentResolver.query(contentUri, new String[]{MediaColumns.DATA}, null, null, null);
String path = null;
if (cursor != null) {
try {
if (cursor.moveToFirst())
path = cursor.getString(0);
} finally {
cursor.close();
}
}
if (path == null) {
path = "Download/";
cursor = contentResolver.query(contentUri, new String[]{MediaColumns.DISPLAY_NAME}, null, null, null);
if (cursor != null) {
try {
if (cursor.moveToFirst())
path += cursor.getString(0);
} finally {
cursor.close();
}
}
}
return new DownloadsFile(context, contentStream, path, contentUri);
} else {
@SuppressWarnings("deprecation") final File path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
final File file = new File(path, name);
if (!path.isDirectory() && !path.mkdirs())
throw new IOException(context.getString(R.string.create_output_dir_error));
return new DownloadsFile(context, new FileOutputStream(file), file.getAbsolutePath(), null);
}
}
public static final class DownloadsFile {
private final Context context;
private final String fileName;
private final OutputStream outputStream;
private final Uri uri;
private DownloadsFile(final Context context, final OutputStream outputStream, final String fileName, final Uri uri) {
this.context = context;
this.outputStream = outputStream;
this.fileName = fileName;
this.uri = uri;
}
public void delete() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q)
context.getContentResolver().delete(uri, null, null);
else
new File(fileName).delete();
}
public String getFileName() {
return fileName;
}
public OutputStream getOutputStream() {
return outputStream;
}
}
}

View File

@ -0,0 +1,72 @@
/*
* Copyright © 2019 WireGuard LLC. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0
*/
package com.wireguard.android.util
import android.content.ContentValues
import android.content.Context
import android.net.Uri
import android.os.Build
import android.os.Environment
import android.provider.MediaStore
import android.provider.MediaStore.MediaColumns
import com.wireguard.android.R
import java.io.File
import java.io.FileOutputStream
import java.io.IOException
import java.io.OutputStream
object DownloadsFileSaver {
@Throws(Exception::class)
fun save(context: Context, name: String, mimeType: String?, overwriteExisting: Boolean) = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
val contentResolver = context.contentResolver
if (overwriteExisting)
contentResolver.delete(MediaStore.Downloads.EXTERNAL_CONTENT_URI, String.format("%s = ?", MediaColumns.DISPLAY_NAME), arrayOf(name))
val contentValues = ContentValues()
contentValues.put(MediaColumns.DISPLAY_NAME, name)
contentValues.put(MediaColumns.MIME_TYPE, mimeType)
val contentUri = contentResolver.insert(MediaStore.Downloads.EXTERNAL_CONTENT_URI, contentValues)
?: throw IOException(context.getString(R.string.create_downloads_file_error))
val contentStream = contentResolver.openOutputStream(contentUri)
?: throw IOException(context.getString(R.string.create_downloads_file_error))
@Suppress("DEPRECATION") var cursor = contentResolver.query(contentUri, arrayOf(MediaColumns.DATA), null, null, null)
var path: String? = null
if (cursor != null) {
try {
if (cursor.moveToFirst())
path = cursor.getString(0)
} finally {
cursor.close()
}
}
if (path == null) {
path = "Download/"
cursor = contentResolver.query(contentUri, arrayOf(MediaColumns.DISPLAY_NAME), null, null, null)
if (cursor != null) {
try {
if (cursor.moveToFirst())
path += cursor.getString(0)
} finally {
cursor.close()
}
}
}
DownloadsFile(context, contentStream, path, contentUri)
} else {
@Suppress("DEPRECATION") val path = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS)
val file = File(path, name)
if (!path.isDirectory && !path.mkdirs())
throw IOException(context.getString(R.string.create_output_dir_error))
DownloadsFile(context, FileOutputStream(file), file.absolutePath, null)
}
class DownloadsFile(private val context: Context, val outputStream: OutputStream, val fileName: String, private val uri: Uri?) {
fun delete() {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q)
context.contentResolver.delete(uri!!, null, null)
else
File(fileName).delete()
}
}
}