src/com/android/settings/bluetooth/Utils.java - LeafOS-Project/android_packages_apps_Settings - Gitiles

 /*
  * Copyright (C) 2011 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 package com.android.settings.bluetooth;

 import static android.os.Process.BLUETOOTH_UID;

 import android.app.settings.SettingsEnums;
 import android.bluetooth.BluetoothCsipSetCoordinator;
 import android.bluetooth.BluetoothDevice;
 import android.bluetooth.BluetoothProfile;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.pm.ActivityInfo;
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.os.UserHandle;
 import android.provider.Settings;
 import android.util.Log;
 import android.widget.Toast;

 import androidx.annotation.VisibleForTesting;
 import androidx.appcompat.app.AlertDialog;

 import com.android.settings.R;
 import com.android.settings.flags.Flags;
 import com.android.settings.overlay.FeatureFactory;
 import com.android.settingslib.bluetooth.BluetoothUtils;
 import com.android.settingslib.bluetooth.BluetoothUtils.ErrorListener;
 import com.android.settingslib.bluetooth.CachedBluetoothDevice;
 import com.android.settingslib.bluetooth.LocalBluetoothManager;
 import com.android.settingslib.bluetooth.LocalBluetoothManager.BluetoothManagerCallback;
 import com.android.settingslib.utils.ThreadUtils;

 import com.google.common.base.Supplier;

 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.FutureTask;

 /**
  * Utils is a helper class that contains constants for various
  * Android resource IDs, debug logging flags, and static methods
  * for creating dialogs.
  */
 public final class Utils {

     private static final String TAG = "BluetoothUtils";

     static final boolean V = BluetoothUtils.V; // verbose logging
     static final boolean D = BluetoothUtils.D;  // regular logging

     private Utils() {
     }

     public static int getConnectionStateSummary(int connectionState) {
         switch (connectionState) {
             case BluetoothProfile.STATE_CONNECTED:
                 return com.android.settingslib.R.string.bluetooth_connected;
             case BluetoothProfile.STATE_CONNECTING:
                 return com.android.settingslib.R.string.bluetooth_connecting;
             case BluetoothProfile.STATE_DISCONNECTED:
                 return com.android.settingslib.R.string.bluetooth_disconnected;
             case BluetoothProfile.STATE_DISCONNECTING:
                 return com.android.settingslib.R.string.bluetooth_disconnecting;
             default:
                 return 0;
         }
     }

     // Create (or recycle existing) and show disconnect dialog.
     static AlertDialog showDisconnectDialog(Context context,
             AlertDialog dialog,
             DialogInterface.OnClickListener disconnectListener,
             CharSequence title, CharSequence message) {
         if (dialog == null) {
             dialog = new AlertDialog.Builder(context)
                     .setPositiveButton(android.R.string.ok, disconnectListener)
                     .setNegativeButton(android.R.string.cancel, null)
                     .create();
         } else {
             if (dialog.isShowing()) {
                 dialog.dismiss();
             }
             // use disconnectListener for the correct profile(s)
             CharSequence okText = context.getText(android.R.string.ok);
             dialog.setButton(DialogInterface.BUTTON_POSITIVE,
                     okText, disconnectListener);
         }
         dialog.setTitle(title);
         dialog.setMessage(message);
         dialog.show();
         return dialog;
     }

     @VisibleForTesting
     static void showConnectingError(Context context, String name, LocalBluetoothManager manager) {
         FeatureFactory.getFeatureFactory().getMetricsFeatureProvider().visible(context,
                 SettingsEnums.PAGE_UNKNOWN, SettingsEnums.ACTION_SETTINGS_BLUETOOTH_CONNECT_ERROR,
                 0);
         showError(context, name, R.string.bluetooth_connecting_error_message, manager);
     }

     static void showError(Context context, String name, int messageResId) {
         showError(context, name, messageResId, getLocalBtManager(context));
     }

     private static void showError(Context context, String name, int messageResId,
             LocalBluetoothManager manager) {
         String message = context.getString(messageResId, name);
         Context activity = manager.getForegroundActivity();
         if (manager.isForegroundActivity()) {
             try {
                 new AlertDialog.Builder(activity)
                         .setTitle(R.string.bluetooth_error_title)
                         .setMessage(message)
                         .setPositiveButton(android.R.string.ok, null)
                         .show();
             } catch (Exception e) {
                 Log.e(TAG, "Cannot show error dialog.", e);
             }
         } else {
             Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
         }
     }

     public static LocalBluetoothManager getLocalBtManager(Context context) {
         return LocalBluetoothManager.getInstance(context, mOnInitCallback);
     }

     /**
      * Obtains a {@link LocalBluetoothManager}.
      *
      * To avoid StrictMode ThreadPolicy violation, will get it in another thread.
      */
     public static LocalBluetoothManager getLocalBluetoothManager(Context context) {
         final FutureTask<LocalBluetoothManager> localBtManagerFutureTask = new FutureTask<>(
                 // Avoid StrictMode ThreadPolicy violation
                 () -> getLocalBtManager(context));
         try {
             localBtManagerFutureTask.run();
             return localBtManagerFutureTask.get();
         } catch (InterruptedException | ExecutionException e) {
             Log.w(TAG, "Error getting LocalBluetoothManager.", e);
             return null;
         }
     }

     public static String createRemoteName(Context context, BluetoothDevice device) {
         String mRemoteName = device != null ? device.getAlias() : null;

         if (mRemoteName == null) {
             mRemoteName = context.getString(R.string.unknown);
         }
         return mRemoteName;
     }

     private static final ErrorListener mErrorListener = new ErrorListener() {
         @Override
         public void onShowError(Context context, String name, int messageResId) {
             showError(context, name, messageResId);
         }
     };

     private static final BluetoothManagerCallback mOnInitCallback = new BluetoothManagerCallback() {
         @Override
         public void onBluetoothManagerInitialized(Context appContext,
                 LocalBluetoothManager bluetoothManager) {
             BluetoothUtils.setErrorListener(mErrorListener);
         }
     };

     public static boolean isBluetoothScanningEnabled(Context context) {
         return Settings.Global.getInt(context.getContentResolver(),
                 Settings.Global.BLE_SCAN_ALWAYS_AVAILABLE, 0) == 1;
     }

     /**
      * Returns the Bluetooth Package name
      */
     public static String findBluetoothPackageName(Context context)
             throws NameNotFoundException {
         // this activity will always be in the package where the rest of Bluetooth lives
         final String sentinelActivity = "com.android.bluetooth.opp.BluetoothOppLauncherActivity";
         PackageManager packageManager = context.createContextAsUser(UserHandle.SYSTEM, 0)
                 .getPackageManager();
         String[] allPackages = packageManager.getPackagesForUid(BLUETOOTH_UID);
         String matchedPackage = null;
         for (String candidatePackage : allPackages) {
             PackageInfo packageInfo;
             try {
                 packageInfo =
                         packageManager.getPackageInfo(
                                 candidatePackage,
                                 PackageManager.GET_ACTIVITIES
                                         | PackageManager.MATCH_ANY_USER
                                         | PackageManager.MATCH_UNINSTALLED_PACKAGES
                                         | PackageManager.MATCH_DISABLED_COMPONENTS);
             } catch (NameNotFoundException e) {
                 // rethrow
                 throw e;
             }
             if (packageInfo.activities == null) {
                 continue;
             }
             for (ActivityInfo activity : packageInfo.activities) {
                 if (sentinelActivity.equals(activity.name)) {
                     if (matchedPackage == null) {
                         matchedPackage = candidatePackage;
                     } else {
                         throw new NameNotFoundException("multiple main bluetooth packages found");
                     }
                 }
             }
         }
         if (matchedPackage != null) {
             return matchedPackage;
         }
         throw new NameNotFoundException("Could not find main bluetooth package");
     }

     /**
      * Returns all cachedBluetoothDevices with the same groupId.
      * @param cachedBluetoothDevice The main cachedBluetoothDevice.
      * @return all cachedBluetoothDevices with the same groupId.
      */
     public static List<CachedBluetoothDevice> getAllOfCachedBluetoothDevices(
             LocalBluetoothManager localBtMgr,
             CachedBluetoothDevice cachedBluetoothDevice) {
         List<CachedBluetoothDevice> cachedBluetoothDevices = new ArrayList<>();
         if (cachedBluetoothDevice == null) {
             Log.e(TAG, "getAllOfCachedBluetoothDevices: no cachedBluetoothDevice");
             return cachedBluetoothDevices;
         }
         int deviceGroupId = cachedBluetoothDevice.getGroupId();
         if (deviceGroupId == BluetoothCsipSetCoordinator.GROUP_ID_INVALID) {
             cachedBluetoothDevices.add(cachedBluetoothDevice);
             return cachedBluetoothDevices;
         }

         if (localBtMgr == null) {
             Log.e(TAG, "getAllOfCachedBluetoothDevices: no LocalBluetoothManager");
             return cachedBluetoothDevices;
         }
         CachedBluetoothDevice mainDevice =
                 localBtMgr.getCachedDeviceManager().getCachedDevicesCopy().stream()
                         .filter(cachedDevice -> cachedDevice.getGroupId() == deviceGroupId)
                         .findFirst().orElse(null);
         if (mainDevice == null) {
             Log.e(TAG, "getAllOfCachedBluetoothDevices: groupId = " + deviceGroupId
                     + ", no main device.");
             return cachedBluetoothDevices;
         }
         cachedBluetoothDevice = mainDevice;
         cachedBluetoothDevices.add(cachedBluetoothDevice);
         for (CachedBluetoothDevice member : cachedBluetoothDevice.getMemberDevice()) {
             cachedBluetoothDevices.add(member);
         }
         Log.d(TAG, "getAllOfCachedBluetoothDevices: groupId = " + deviceGroupId
                 + " , cachedBluetoothDevice = " + cachedBluetoothDevice
                 + " , deviceList = " + cachedBluetoothDevices);
         return cachedBluetoothDevices;
     }

     /**
      * Preloads the values and run the Runnable afterwards.
      * @param suppliers the value supplier, should be a memoized supplier
      * @param runnable the runnable to be run after value is preloaded
      */
     public static void preloadAndRun(List<Supplier<?>> suppliers, Runnable runnable) {
         if (!Flags.enableOffloadBluetoothOperationsToBackgroundThread()) {
             runnable.run();
             return;
         }
         ThreadUtils.postOnBackgroundThread(() -> {
             for (Supplier<?> supplier : suppliers) {
                 supplier.get();
             }
             ThreadUtils.postOnMainThread(runnable);
         });
     }
 }
	/*
	* Copyright (C) 2011 The Android Open Source Project
	*
	* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	package com.android.settings.bluetooth;

	import static android.os.Process.BLUETOOTH_UID;

	import android.app.settings.SettingsEnums;
	import android.bluetooth.BluetoothCsipSetCoordinator;
	import android.bluetooth.BluetoothDevice;
	import android.bluetooth.BluetoothProfile;
	import android.content.Context;
	import android.content.DialogInterface;
	import android.content.pm.ActivityInfo;
	import android.content.pm.PackageInfo;
	import android.content.pm.PackageManager;
	import android.content.pm.PackageManager.NameNotFoundException;
	import android.os.UserHandle;
	import android.provider.Settings;
	import android.util.Log;
	import android.widget.Toast;

	import androidx.annotation.VisibleForTesting;
	import androidx.appcompat.app.AlertDialog;

	import com.android.settings.R;
	import com.android.settings.flags.Flags;
	import com.android.settings.overlay.FeatureFactory;
	import com.android.settingslib.bluetooth.BluetoothUtils;
	import com.android.settingslib.bluetooth.BluetoothUtils.ErrorListener;
	import com.android.settingslib.bluetooth.CachedBluetoothDevice;
	import com.android.settingslib.bluetooth.LocalBluetoothManager;
	import com.android.settingslib.bluetooth.LocalBluetoothManager.BluetoothManagerCallback;
	import com.android.settingslib.utils.ThreadUtils;

	import com.google.common.base.Supplier;

	import java.util.ArrayList;
	import java.util.List;
	import java.util.concurrent.ExecutionException;
	import java.util.concurrent.FutureTask;

	/**
	* Utils is a helper class that contains constants for various
	* Android resource IDs, debug logging flags, and static methods
	* for creating dialogs.
	*/
	public final class Utils {

	private static final String TAG = "BluetoothUtils";

	static final boolean V = BluetoothUtils.V; // verbose logging
	static final boolean D = BluetoothUtils.D; // regular logging

	private Utils() {
	}

	public static int getConnectionStateSummary(int connectionState) {
	switch (connectionState) {
	case BluetoothProfile.STATE_CONNECTED:
	return com.android.settingslib.R.string.bluetooth_connected;
	case BluetoothProfile.STATE_CONNECTING:
	return com.android.settingslib.R.string.bluetooth_connecting;
	case BluetoothProfile.STATE_DISCONNECTED:
	return com.android.settingslib.R.string.bluetooth_disconnected;
	case BluetoothProfile.STATE_DISCONNECTING:
	return com.android.settingslib.R.string.bluetooth_disconnecting;
	default:
	return 0;
	}
	}

	// Create (or recycle existing) and show disconnect dialog.
	static AlertDialog showDisconnectDialog(Context context,
	AlertDialog dialog,
	DialogInterface.OnClickListener disconnectListener,
	CharSequence title, CharSequence message) {
	if (dialog == null) {
	dialog = new AlertDialog.Builder(context)
	.setPositiveButton(android.R.string.ok, disconnectListener)
	.setNegativeButton(android.R.string.cancel, null)
	.create();
	} else {
	if (dialog.isShowing()) {
	dialog.dismiss();
	}
	// use disconnectListener for the correct profile(s)
	CharSequence okText = context.getText(android.R.string.ok);
	dialog.setButton(DialogInterface.BUTTON_POSITIVE,
	okText, disconnectListener);
	}
	dialog.setTitle(title);
	dialog.setMessage(message);
	dialog.show();
	return dialog;
	}

	@VisibleForTesting
	static void showConnectingError(Context context, String name, LocalBluetoothManager manager) {
	FeatureFactory.getFeatureFactory().getMetricsFeatureProvider().visible(context,
	SettingsEnums.PAGE_UNKNOWN, SettingsEnums.ACTION_SETTINGS_BLUETOOTH_CONNECT_ERROR,
	0);
	showError(context, name, R.string.bluetooth_connecting_error_message, manager);
	}

	static void showError(Context context, String name, int messageResId) {
	showError(context, name, messageResId, getLocalBtManager(context));
	}

	private static void showError(Context context, String name, int messageResId,
	LocalBluetoothManager manager) {
	String message = context.getString(messageResId, name);
	Context activity = manager.getForegroundActivity();
	if (manager.isForegroundActivity()) {
	try {
	new AlertDialog.Builder(activity)
	.setTitle(R.string.bluetooth_error_title)
	.setMessage(message)
	.setPositiveButton(android.R.string.ok, null)
	.show();
	} catch (Exception e) {
	Log.e(TAG, "Cannot show error dialog.", e);
	}
	} else {
	Toast.makeText(context, message, Toast.LENGTH_SHORT).show();
	}
	}

	public static LocalBluetoothManager getLocalBtManager(Context context) {
	return LocalBluetoothManager.getInstance(context, mOnInitCallback);
	}

	/**
	* Obtains a {@link LocalBluetoothManager}.
	*
	* To avoid StrictMode ThreadPolicy violation, will get it in another thread.
	*/
	public static LocalBluetoothManager getLocalBluetoothManager(Context context) {
	final FutureTask<LocalBluetoothManager> localBtManagerFutureTask = new FutureTask<>(
	// Avoid StrictMode ThreadPolicy violation
	() -> getLocalBtManager(context));
	try {
	localBtManagerFutureTask.run();
	return localBtManagerFutureTask.get();
	} catch (InterruptedException \| ExecutionException e) {
	Log.w(TAG, "Error getting LocalBluetoothManager.", e);
	return null;
	}
	}

	public static String createRemoteName(Context context, BluetoothDevice device) {
	String mRemoteName = device != null ? device.getAlias() : null;

	if (mRemoteName == null) {
	mRemoteName = context.getString(R.string.unknown);
	}
	return mRemoteName;
	}

	private static final ErrorListener mErrorListener = new ErrorListener() {
	@Override
	public void onShowError(Context context, String name, int messageResId) {
	showError(context, name, messageResId);
	}
	};

	private static final BluetoothManagerCallback mOnInitCallback = new BluetoothManagerCallback() {
	@Override
	public void onBluetoothManagerInitialized(Context appContext,
	LocalBluetoothManager bluetoothManager) {
	BluetoothUtils.setErrorListener(mErrorListener);
	}
	};

	public static boolean isBluetoothScanningEnabled(Context context) {
	return Settings.Global.getInt(context.getContentResolver(),
	Settings.Global.BLE_SCAN_ALWAYS_AVAILABLE, 0) == 1;
	}

	/**
	* Returns the Bluetooth Package name
	*/
	public static String findBluetoothPackageName(Context context)
	throws NameNotFoundException {
	// this activity will always be in the package where the rest of Bluetooth lives
	final String sentinelActivity = "com.android.bluetooth.opp.BluetoothOppLauncherActivity";
	PackageManager packageManager = context.createContextAsUser(UserHandle.SYSTEM, 0)
	.getPackageManager();
	String[] allPackages = packageManager.getPackagesForUid(BLUETOOTH_UID);
	String matchedPackage = null;
	for (String candidatePackage : allPackages) {
	PackageInfo packageInfo;
	try {
	packageInfo =
	packageManager.getPackageInfo(
	candidatePackage,
	PackageManager.GET_ACTIVITIES
	\| PackageManager.MATCH_ANY_USER
	\| PackageManager.MATCH_UNINSTALLED_PACKAGES
	\| PackageManager.MATCH_DISABLED_COMPONENTS);
	} catch (NameNotFoundException e) {
	// rethrow
	throw e;
	}
	if (packageInfo.activities == null) {
	continue;
	}
	for (ActivityInfo activity : packageInfo.activities) {
	if (sentinelActivity.equals(activity.name)) {
	if (matchedPackage == null) {
	matchedPackage = candidatePackage;
	} else {
	throw new NameNotFoundException("multiple main bluetooth packages found");
	}
	}
	}
	}
	if (matchedPackage != null) {
	return matchedPackage;
	}
	throw new NameNotFoundException("Could not find main bluetooth package");
	}

	/**
	* Returns all cachedBluetoothDevices with the same groupId.
	* @param cachedBluetoothDevice The main cachedBluetoothDevice.
	* @return all cachedBluetoothDevices with the same groupId.
	*/
	public static List<CachedBluetoothDevice> getAllOfCachedBluetoothDevices(
	LocalBluetoothManager localBtMgr,
	CachedBluetoothDevice cachedBluetoothDevice) {
	List<CachedBluetoothDevice> cachedBluetoothDevices = new ArrayList<>();
	if (cachedBluetoothDevice == null) {
	Log.e(TAG, "getAllOfCachedBluetoothDevices: no cachedBluetoothDevice");
	return cachedBluetoothDevices;
	}
	int deviceGroupId = cachedBluetoothDevice.getGroupId();
	if (deviceGroupId == BluetoothCsipSetCoordinator.GROUP_ID_INVALID) {
	cachedBluetoothDevices.add(cachedBluetoothDevice);
	return cachedBluetoothDevices;
	}

	if (localBtMgr == null) {
	Log.e(TAG, "getAllOfCachedBluetoothDevices: no LocalBluetoothManager");
	return cachedBluetoothDevices;
	}
	CachedBluetoothDevice mainDevice =
	localBtMgr.getCachedDeviceManager().getCachedDevicesCopy().stream()
	.filter(cachedDevice -> cachedDevice.getGroupId() == deviceGroupId)
	.findFirst().orElse(null);
	if (mainDevice == null) {
	Log.e(TAG, "getAllOfCachedBluetoothDevices: groupId = " + deviceGroupId
	+ ", no main device.");
	return cachedBluetoothDevices;
	}
	cachedBluetoothDevice = mainDevice;
	cachedBluetoothDevices.add(cachedBluetoothDevice);
	for (CachedBluetoothDevice member : cachedBluetoothDevice.getMemberDevice()) {
	cachedBluetoothDevices.add(member);
	}
	Log.d(TAG, "getAllOfCachedBluetoothDevices: groupId = " + deviceGroupId
	+ " , cachedBluetoothDevice = " + cachedBluetoothDevice
	+ " , deviceList = " + cachedBluetoothDevices);
	return cachedBluetoothDevices;
	}

	/**
	* Preloads the values and run the Runnable afterwards.
	* @param suppliers the value supplier, should be a memoized supplier
	* @param runnable the runnable to be run after value is preloaded
	*/
	public static void preloadAndRun(List<Supplier<?>> suppliers, Runnable runnable) {
	if (!Flags.enableOffloadBluetoothOperationsToBackgroundThread()) {
	runnable.run();
	return;
	}
	ThreadUtils.postOnBackgroundThread(() -> {
	for (Supplier<?> supplier : suppliers) {
	supplier.get();
	}
	ThreadUtils.postOnMainThread(runnable);
	});
	}
	}