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/*
* Copyright (C) 2008 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 android.app.AlertDialog;
import android.bluetooth.BluetoothAdapter;
import android.bluetooth.BluetoothClass;
import android.bluetooth.BluetoothDevice;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.res.Resources;
import android.os.ParcelUuid;
import android.os.SystemClock;
import android.text.TextUtils;
import android.util.Log;
import android.view.ContextMenu;
import android.view.Menu;
import android.view.MenuItem;
import com.android.settings.R;
import com.android.settings.bluetooth.LocalBluetoothProfileManager.Profile;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
/**
* CachedBluetoothDevice represents a remote Bluetooth device. It contains
* attributes of the device (such as the address, name, RSSI, etc.) and
* functionality that can be performed on the device (connect, pair, disconnect,
* etc.).
*/
public class CachedBluetoothDevice implements Comparable<CachedBluetoothDevice> {
private static final String TAG = "CachedBluetoothDevice";
private static final boolean D = LocalBluetoothManager.D;
private static final boolean V = LocalBluetoothManager.V;
private static final boolean DEBUG = false;
private static final int CONTEXT_ITEM_CONNECT = Menu.FIRST + 1;
private static final int CONTEXT_ITEM_DISCONNECT = Menu.FIRST + 2;
private static final int CONTEXT_ITEM_UNPAIR = Menu.FIRST + 3;
private static final int CONTEXT_ITEM_CONNECT_ADVANCED = Menu.FIRST + 4;
private final BluetoothDevice mDevice;
private String mName;
private short mRssi;
private BluetoothClass mBtClass;
private List<Profile> mProfiles = new ArrayList<Profile>();
private boolean mVisible;
private final LocalBluetoothManager mLocalManager;
private List<Callback> mCallbacks = new ArrayList<Callback>();
/**
* When we connect to multiple profiles, we only want to display a single
* error even if they all fail. This tracks that state.
*/
private boolean mIsConnectingErrorPossible;
/**
* Last time a bt profile auto-connect was attempted.
* If an ACTION_UUID intent comes in within
* MAX_UUID_DELAY_FOR_AUTO_CONNECT milliseconds, we will try auto-connect
* again with the new UUIDs
*/
private long mConnectAttempted;
// See mConnectAttempted
private static final long MAX_UUID_DELAY_FOR_AUTO_CONNECT = 5000;
/**
* Describes the current device and profile for logging.
*
* @param profile Profile to describe
* @return Description of the device and profile
*/
private String describe(CachedBluetoothDevice cachedDevice, Profile profile) {
StringBuilder sb = new StringBuilder();
sb.append("Address:").append(cachedDevice.mDevice);
if (profile != null) {
sb.append(" Profile:").append(profile.name());
}
return sb.toString();
}
private String describe(Profile profile) {
return describe(this, profile);
}
public void onProfileStateChanged(Profile profile, int newProfileState) {
if (D) {
Log.d(TAG, "onProfileStateChanged: profile " + profile.toString() +
" newProfileState " + newProfileState);
}
int newState = LocalBluetoothProfileManager.getProfileManager(mLocalManager,
profile).convertState(newProfileState);
if (newState == SettingsBtStatus.CONNECTION_STATUS_CONNECTED) {
if (!mProfiles.contains(profile)) {
mProfiles.add(profile);
}
}
}
CachedBluetoothDevice(Context context, BluetoothDevice device) {
mLocalManager = LocalBluetoothManager.getInstance(context);
if (mLocalManager == null) {
throw new IllegalStateException(
"Cannot use CachedBluetoothDevice without Bluetooth hardware");
}
mDevice = device;
fillData();
}
public void onClicked() {
int bondState = getBondState();
if (isConnected()) {
askDisconnect();
} else if (bondState == BluetoothDevice.BOND_BONDED) {
connect();
} else if (bondState == BluetoothDevice.BOND_NONE) {
pair();
}
}
public void disconnect() {
for (Profile profile : mProfiles) {
disconnect(profile);
}
}
public void disconnect(Profile profile) {
disconnectInt(this, profile);
}
private boolean disconnectInt(CachedBluetoothDevice cachedDevice, Profile profile) {
LocalBluetoothProfileManager profileManager =
LocalBluetoothProfileManager.getProfileManager(mLocalManager, profile);
int status = profileManager.getConnectionStatus(cachedDevice.mDevice);
if (SettingsBtStatus.isConnectionStatusConnected(status)) {
if (profileManager.disconnect(cachedDevice.mDevice)) {
if (D) {
Log.d(TAG, "Command sent successfully:DISCONNECT " + describe(profile));
}
return true;
}
if (V) {
Log.v(TAG, "Framework rejected command immediately:DISCONNECT " +
describe(profile));
}
}
return false;
}
public void askDisconnect() {
Context context = mLocalManager.getForegroundActivity();
if (context == null) {
// Cannot ask, since we need an activity context
disconnect();
return;
}
Resources res = context.getResources();
String name = getName();
if (TextUtils.isEmpty(name)) {
name = res.getString(R.string.bluetooth_device);
}
String message = res.getString(R.string.bluetooth_disconnect_blank, name);
DialogInterface.OnClickListener disconnectListener = new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
disconnect();
}
};
new AlertDialog.Builder(context)
.setTitle(getName())
.setMessage(message)
.setPositiveButton(android.R.string.ok, disconnectListener)
.setNegativeButton(android.R.string.cancel, null)
.show();
}
public void connect() {
if (!ensurePaired()) return;
mConnectAttempted = SystemClock.elapsedRealtime();
connectWithoutResettingTimer();
}
/*package*/ void onBondingDockConnect() {
// Don't connect just set the timer.
// TODO(): Fix the actual problem
mConnectAttempted = SystemClock.elapsedRealtime();
}
private void connectWithoutResettingTimer() {
// Try to initialize the profiles if there were not.
if (mProfiles.size() == 0) {
if (!updateProfiles()) {
// If UUIDs are not available yet, connect will be happen
// upon arrival of the ACTION_UUID intent.
if (DEBUG) Log.d(TAG, "No profiles. Maybe we will connect later");
return;
}
}
// Reset the only-show-one-error-dialog tracking variable
mIsConnectingErrorPossible = true;
int preferredProfiles = 0;
for (Profile profile : mProfiles) {
if (isConnectableProfile(profile)) {
LocalBluetoothProfileManager profileManager = LocalBluetoothProfileManager
.getProfileManager(mLocalManager, profile);
if (profileManager.isPreferred(mDevice)) {
++preferredProfiles;
disconnectConnected(profile);
connectInt(this, profile);
}
}
}
if (DEBUG) Log.d(TAG, "Preferred profiles = " + preferredProfiles);
if (preferredProfiles == 0) {
connectAllProfiles();
}
}
private void connectAllProfiles() {
if (!ensurePaired()) return;
// Reset the only-show-one-error-dialog tracking variable
mIsConnectingErrorPossible = true;
for (Profile profile : mProfiles) {
if (isConnectableProfile(profile)) {
LocalBluetoothProfileManager profileManager = LocalBluetoothProfileManager
.getProfileManager(mLocalManager, profile);
profileManager.setPreferred(mDevice, false);
disconnectConnected(profile);
connectInt(this, profile);
}
}
}
public void connect(Profile profile) {
mConnectAttempted = SystemClock.elapsedRealtime();
// Reset the only-show-one-error-dialog tracking variable
mIsConnectingErrorPossible = true;
disconnectConnected(profile);
connectInt(this, profile);
}
private void disconnectConnected(Profile profile) {
LocalBluetoothProfileManager profileManager =
LocalBluetoothProfileManager.getProfileManager(mLocalManager, profile);
CachedBluetoothDeviceManager cachedDeviceManager = mLocalManager.getCachedDeviceManager();
Set<BluetoothDevice> devices = profileManager.getConnectedDevices();
if (devices == null) return;
for (BluetoothDevice device : devices) {
CachedBluetoothDevice cachedDevice = cachedDeviceManager.findDevice(device);
if (cachedDevice != null) {
disconnectInt(cachedDevice, profile);
}
}
}
private boolean connectInt(CachedBluetoothDevice cachedDevice, Profile profile) {
if (!cachedDevice.ensurePaired()) return false;
LocalBluetoothProfileManager profileManager =
LocalBluetoothProfileManager.getProfileManager(mLocalManager, profile);
int status = profileManager.getConnectionStatus(cachedDevice.mDevice);
if (!SettingsBtStatus.isConnectionStatusConnected(status)) {
if (profileManager.connect(cachedDevice.mDevice)) {
if (D) {
Log.d(TAG, "Command sent successfully:CONNECT " + describe(profile));
}
return true;
}
Log.i(TAG, "Failed to connect " + profile.toString() + " to " + cachedDevice.mName);
} else {
Log.i(TAG, "Already connected");
}
return false;
}
public void showConnectingError() {
if (!mIsConnectingErrorPossible) return;
mIsConnectingErrorPossible = false;
mLocalManager.showError(mDevice, R.string.bluetooth_error_title,
R.string.bluetooth_connecting_error_message);
}
private boolean ensurePaired() {
if (getBondState() == BluetoothDevice.BOND_NONE) {
pair();
return false;
} else {
return true;
}
}
public void pair() {
BluetoothAdapter adapter = mLocalManager.getBluetoothAdapter();
// Pairing is unreliable while scanning, so cancel discovery
if (adapter.isDiscovering()) {
adapter.cancelDiscovery();
}
if (!mDevice.createBond()) {
mLocalManager.showError(mDevice, R.string.bluetooth_error_title,
R.string.bluetooth_pairing_error_message);
}
}
public void unpair() {
disconnect();
int state = getBondState();
if (state == BluetoothDevice.BOND_BONDING) {
mDevice.cancelBondProcess();
}
if (state != BluetoothDevice.BOND_NONE) {
final BluetoothDevice dev = getDevice();
if (dev != null) {
final boolean successful = dev.removeBond();
if (successful) {
if (D) {
Log.d(TAG, "Command sent successfully:REMOVE_BOND " + describe(null));
}
} else if (V) {
Log.v(TAG, "Framework rejected command immediately:REMOVE_BOND " +
describe(null));
}
}
}
}
private void fillData() {
fetchName();
fetchBtClass();
updateProfiles();
mVisible = false;
dispatchAttributesChanged();
}
public BluetoothDevice getDevice() {
return mDevice;
}
public String getName() {
return mName;
}
public void setName(String name) {
if (!mName.equals(name)) {
if (TextUtils.isEmpty(name)) {
mName = mDevice.getAddress();
} else {
mName = name;
}
dispatchAttributesChanged();
}
}
public void refreshName() {
fetchName();
dispatchAttributesChanged();
}
private void fetchName() {
mName = mDevice.getName();
if (TextUtils.isEmpty(mName)) {
mName = mDevice.getAddress();
if (DEBUG) Log.d(TAG, "Default to address. Device has no name (yet) " + mName);
}
}
public void refresh() {
dispatchAttributesChanged();
}
public boolean isVisible() {
return mVisible;
}
void setVisible(boolean visible) {
if (mVisible != visible) {
mVisible = visible;
dispatchAttributesChanged();
}
}
public int getBondState() {
return mDevice.getBondState();
}
void setRssi(short rssi) {
if (mRssi != rssi) {
mRssi = rssi;
dispatchAttributesChanged();
}
}
/**
* Checks whether we are connected to this device (any profile counts).
*
* @return Whether it is connected.
*/
public boolean isConnected() {
for (Profile profile : mProfiles) {
int status = LocalBluetoothProfileManager.getProfileManager(mLocalManager, profile)
.getConnectionStatus(mDevice);
if (SettingsBtStatus.isConnectionStatusConnected(status)) {
return true;
}
}
return false;
}
public boolean isBusy() {
for (Profile profile : mProfiles) {
int status = LocalBluetoothProfileManager.getProfileManager(mLocalManager, profile)
.getConnectionStatus(mDevice);
if (SettingsBtStatus.isConnectionStatusBusy(status)) {
return true;
}
}
if (getBondState() == BluetoothDevice.BOND_BONDING) {
return true;
}
return false;
}
public int getBtClassDrawable() {
if (mBtClass != null) {
switch (mBtClass.getMajorDeviceClass()) {
case BluetoothClass.Device.Major.COMPUTER:
return R.drawable.ic_bt_laptop;
case BluetoothClass.Device.Major.PHONE:
return R.drawable.ic_bt_cellphone;
}
} else {
Log.w(TAG, "mBtClass is null");
}
if (mProfiles.size() > 0) {
if (mProfiles.contains(Profile.A2DP)) {
return R.drawable.ic_bt_headphones_a2dp;
} else if (mProfiles.contains(Profile.HEADSET)) {
return R.drawable.ic_bt_headset_hfp;
}
} else if (mBtClass != null) {
if (mBtClass.doesClassMatch(BluetoothClass.PROFILE_A2DP)) {
return R.drawable.ic_bt_headphones_a2dp;
}
if (mBtClass.doesClassMatch(BluetoothClass.PROFILE_HEADSET)) {
return R.drawable.ic_bt_headset_hfp;
}
}
return 0;
}
/**
* Fetches a new value for the cached BT class.
*/
private void fetchBtClass() {
mBtClass = mDevice.getBluetoothClass();
}
private boolean updateProfiles() {
ParcelUuid[] uuids = mDevice.getUuids();
if (uuids == null) return false;
LocalBluetoothProfileManager.updateProfiles(uuids, mProfiles);
if (DEBUG) {
Log.e(TAG, "updating profiles for " + mDevice.getName());
boolean printUuids = true;
BluetoothClass bluetoothClass = mDevice.getBluetoothClass();
if (bluetoothClass != null) {
if (bluetoothClass.doesClassMatch(BluetoothClass.PROFILE_HEADSET) !=
mProfiles.contains(Profile.HEADSET)) {
Log.v(TAG, "headset classbits != uuid");
printUuids = true;
}
if (bluetoothClass.doesClassMatch(BluetoothClass.PROFILE_A2DP) !=
mProfiles.contains(Profile.A2DP)) {
Log.v(TAG, "a2dp classbits != uuid");
printUuids = true;
}
if (bluetoothClass.doesClassMatch(BluetoothClass.PROFILE_OPP) !=
mProfiles.contains(Profile.OPP)) {
Log.v(TAG, "opp classbits != uuid");
printUuids = true;
}
}
if (printUuids) {
if (bluetoothClass != null) Log.v(TAG, "Class: " + bluetoothClass.toString());
Log.v(TAG, "UUID:");
for (int i = 0; i < uuids.length; i++) {
Log.v(TAG, " " + uuids[i]);
}
}
}
return true;
}
/**
* Refreshes the UI for the BT class, including fetching the latest value
* for the class.
*/
public void refreshBtClass() {
fetchBtClass();
dispatchAttributesChanged();
}
/**
* Refreshes the UI when framework alerts us of a UUID change.
*/
public void onUuidChanged() {
updateProfiles();
if (DEBUG) {
Log.e(TAG, "onUuidChanged: Time since last connect"
+ (SystemClock.elapsedRealtime() - mConnectAttempted));
}
/*
* If a connect was attempted earlier without any UUID, we will do the
* connect now.
*/
if (mProfiles.size() > 0
&& (mConnectAttempted + MAX_UUID_DELAY_FOR_AUTO_CONNECT) > SystemClock
.elapsedRealtime()) {
connectWithoutResettingTimer();
}
dispatchAttributesChanged();
}
public void onBondingStateChanged(int bondState) {
if (bondState == BluetoothDevice.BOND_NONE) {
mProfiles.clear();
}
refresh();
}
public void setBtClass(BluetoothClass btClass) {
if (btClass != null && mBtClass != btClass) {
mBtClass = btClass;
dispatchAttributesChanged();
}
}
public int getSummary() {
// TODO: clean up
int oneOffSummary = getOneOffSummary();
if (oneOffSummary != 0) {
return oneOffSummary;
}
for (Profile profile : mProfiles) {
LocalBluetoothProfileManager profileManager = LocalBluetoothProfileManager
.getProfileManager(mLocalManager, profile);
int connectionStatus = profileManager.getConnectionStatus(mDevice);
if (SettingsBtStatus.isConnectionStatusConnected(connectionStatus) ||
connectionStatus == SettingsBtStatus.CONNECTION_STATUS_CONNECTING ||
connectionStatus == SettingsBtStatus.CONNECTION_STATUS_DISCONNECTING) {
return SettingsBtStatus.getConnectionStatusSummary(connectionStatus);
}
}
return SettingsBtStatus.getPairingStatusSummary(getBondState());
}
/**
* We have special summaries when particular profiles are connected. This
* checks for those states and returns an applicable summary.
*
* @return A one-off summary that is applicable for the current state, or 0.
*/
private int getOneOffSummary() {
boolean isA2dpConnected = false, isHeadsetConnected = false, isConnecting = false;
if (mProfiles.contains(Profile.A2DP)) {
LocalBluetoothProfileManager profileManager = LocalBluetoothProfileManager
.getProfileManager(mLocalManager, Profile.A2DP);
isConnecting = profileManager.getConnectionStatus(mDevice) ==
SettingsBtStatus.CONNECTION_STATUS_CONNECTING;
isA2dpConnected = profileManager.isConnected(mDevice);
}
if (mProfiles.contains(Profile.HEADSET)) {
LocalBluetoothProfileManager profileManager = LocalBluetoothProfileManager
.getProfileManager(mLocalManager, Profile.HEADSET);
isConnecting |= profileManager.getConnectionStatus(mDevice) ==
SettingsBtStatus.CONNECTION_STATUS_CONNECTING;
isHeadsetConnected = profileManager.isConnected(mDevice);
}
if (isConnecting) {
// If any of these important profiles is connecting, prefer that
return SettingsBtStatus.getConnectionStatusSummary(
SettingsBtStatus.CONNECTION_STATUS_CONNECTING);
} else if (isA2dpConnected && isHeadsetConnected) {
return R.string.bluetooth_summary_connected_to_a2dp_headset;
} else if (isA2dpConnected) {
return R.string.bluetooth_summary_connected_to_a2dp;
} else if (isHeadsetConnected) {
return R.string.bluetooth_summary_connected_to_headset;
} else {
return 0;
}
}
public List<Profile> getConnectableProfiles() {
ArrayList<Profile> connectableProfiles = new ArrayList<Profile>();
for (Profile profile : mProfiles) {
if (isConnectableProfile(profile)) {
connectableProfiles.add(profile);
}
}
return connectableProfiles;
}
private boolean isConnectableProfile(Profile profile) {
return profile.equals(Profile.HEADSET) || profile.equals(Profile.A2DP);
}
public void onCreateContextMenu(ContextMenu menu) {
// No context menu if it is busy (none of these items are applicable if busy)
if (mLocalManager.getBluetoothState() != BluetoothAdapter.STATE_ON || isBusy()) {
return;
}
int bondState = getBondState();
boolean isConnected = isConnected();
boolean hasConnectableProfiles = false;
for (Profile profile : mProfiles) {
if (isConnectableProfile(profile)) {
hasConnectableProfiles = true;
break;
}
}
menu.setHeaderTitle(getName());
if (bondState == BluetoothDevice.BOND_NONE) { // Not paired and not connected
menu.add(0, CONTEXT_ITEM_CONNECT, 0, R.string.bluetooth_device_context_pair_connect);
} else { // Paired
if (isConnected) { // Paired and connected
menu.add(0, CONTEXT_ITEM_DISCONNECT, 0,
R.string.bluetooth_device_context_disconnect);
menu.add(0, CONTEXT_ITEM_UNPAIR, 0,
R.string.bluetooth_device_context_disconnect_unpair);
} else { // Paired but not connected
if (hasConnectableProfiles) {
menu.add(0, CONTEXT_ITEM_CONNECT, 0, R.string.bluetooth_device_context_connect);
}
menu.add(0, CONTEXT_ITEM_UNPAIR, 0, R.string.bluetooth_device_context_unpair);
}
// Show the connection options item
if (hasConnectableProfiles) {
menu.add(0, CONTEXT_ITEM_CONNECT_ADVANCED, 0,
R.string.bluetooth_device_context_connect_advanced);
}
}
}
/**
* Called when a context menu item is clicked.
*
* @param item The item that was clicked.
*/
public void onContextItemSelected(MenuItem item) {
switch (item.getItemId()) {
case CONTEXT_ITEM_DISCONNECT:
disconnect();
break;
case CONTEXT_ITEM_CONNECT:
connect();
break;
case CONTEXT_ITEM_UNPAIR:
unpair();
break;
case CONTEXT_ITEM_CONNECT_ADVANCED:
Intent intent = new Intent();
// Need an activity context to open this in our task
Context context = mLocalManager.getForegroundActivity();
if (context == null) {
// Fallback on application context, and open in a new task
context = mLocalManager.getContext();
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
}
intent.setClass(context, ConnectSpecificProfilesActivity.class);
intent.putExtra(ConnectSpecificProfilesActivity.EXTRA_DEVICE, mDevice);
context.startActivity(intent);
break;
}
}
public void registerCallback(Callback callback) {
synchronized (mCallbacks) {
mCallbacks.add(callback);
}
}
public void unregisterCallback(Callback callback) {
synchronized (mCallbacks) {
mCallbacks.remove(callback);
}
}
private void dispatchAttributesChanged() {
synchronized (mCallbacks) {
for (Callback callback : mCallbacks) {
callback.onDeviceAttributesChanged(this);
}
}
}
@Override
public String toString() {
return mDevice.toString();
}
@Override
public boolean equals(Object o) {
if ((o == null) || !(o instanceof CachedBluetoothDevice)) {
throw new ClassCastException();
}
return mDevice.equals(((CachedBluetoothDevice) o).mDevice);
}
@Override
public int hashCode() {
return mDevice.getAddress().hashCode();
}
public int compareTo(CachedBluetoothDevice another) {
int comparison;
// Connected above not connected
comparison = (another.isConnected() ? 1 : 0) - (isConnected() ? 1 : 0);
if (comparison != 0) return comparison;
// Paired above not paired
comparison = (another.getBondState() == BluetoothDevice.BOND_BONDED ? 1 : 0) -
(getBondState() == BluetoothDevice.BOND_BONDED ? 1 : 0);
if (comparison != 0) return comparison;
// Visible above not visible
comparison = (another.mVisible ? 1 : 0) - (mVisible ? 1 : 0);
if (comparison != 0) return comparison;
// Stronger signal above weaker signal
comparison = another.mRssi - mRssi;
if (comparison != 0) return comparison;
// Fallback on name
return getName().compareTo(another.getName());
}
public interface Callback {
void onDeviceAttributesChanged(CachedBluetoothDevice cachedDevice);
}
}
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