/*
* Copyright (C) 2007 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 android.view;
import com.android.internal.R;
import android.app.Dialog;
import android.content.DialogInterface.OnDismissListener;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.res.Resources;
import android.media.AudioManager;
import android.media.AudioService;
import android.media.AudioSystem;
import android.media.RingtoneManager;
import android.media.ToneGenerator;
import android.net.Uri;
import android.os.Handler;
import android.os.Message;
import android.os.RemoteException;
import android.os.Vibrator;
import android.provider.Settings;
import android.provider.Settings.System;
import android.util.Log;
import android.view.WindowManager.LayoutParams;
import android.widget.ImageView;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import java.util.HashMap;
/**
* Handle the volume up and down keys.
*
* This code really should be moved elsewhere.
*
* Seriously, it really really should be moved elsewhere. This is used by
* android.media.AudioService, which actually runs in the system process, to
* show the volume dialog when the user changes the volume. What a mess.
*
* @hide
*/
public class VolumePanel extends Handler implements OnSeekBarChangeListener, View.OnClickListener
{
private static final String TAG = "VolumePanel";
private static boolean LOGD = false;
/**
* The delay before playing a sound. This small period exists so the user
* can press another key (non-volume keys, too) to have it NOT be audible.
* <p>
* PhoneWindow will implement this part.
*/
public static final int PLAY_SOUND_DELAY = 300;
/**
* The delay before vibrating. This small period exists so if the user is
* moving to silent mode, it will not emit a short vibrate (it normally
* would since vibrate is between normal mode and silent mode using hardware
* keys).
*/
public static final int VIBRATE_DELAY = 300;
private static final int VIBRATE_DURATION = 300;
private static final int BEEP_DURATION = 150;
private static final int MAX_VOLUME = 100;
private static final int FREE_DELAY = 10000;
private static final int TIMEOUT_DELAY = 3000;
private static final int MSG_VOLUME_CHANGED = 0;
private static final int MSG_FREE_RESOURCES = 1;
private static final int MSG_PLAY_SOUND = 2;
private static final int MSG_STOP_SOUNDS = 3;
private static final int MSG_VIBRATE = 4;
private static final int MSG_TIMEOUT = 5;
private static final int MSG_RINGER_MODE_CHANGED = 6;
protected Context mContext;
private AudioManager mAudioManager;
protected AudioService mAudioService;
private boolean mRingIsSilent;
private boolean mShowCombinedVolumes;
private boolean mVoiceCapable;
/** Dialog containing all the sliders */
private final Dialog mDialog;
/** Dialog's content view */
private final View mView;
/** The visible portion of the volume overlay */
private final ViewGroup mPanel;
/** Contains the sliders and their touchable icons */
private final ViewGroup mSliderGroup;
/** The button that expands the dialog to show all sliders */
private final View mMoreButton;
/** Dummy divider icon that needs to vanish with the more button */
private final View mDivider;
/** Currently active stream that shows up at the top of the list of sliders */
private int mActiveStreamType = -1;
/** All the slider controls mapped by stream type */
private HashMap<Integer,StreamControl> mStreamControls;
private enum StreamResources {
BluetoothSCOStream(AudioManager.STREAM_BLUETOOTH_SCO,
R.string.volume_icon_description_bluetooth,
R.drawable.ic_audio_bt,
R.drawable.ic_audio_bt,
false),
RingerStream(AudioManager.STREAM_RING,
R.string.volume_icon_description_ringer,
R.drawable.ic_audio_ring_notif,
R.drawable.ic_audio_ring_notif_mute,
false),
VoiceStream(AudioManager.STREAM_VOICE_CALL,
R.string.volume_icon_description_incall,
R.drawable.ic_audio_phone,
R.drawable.ic_audio_phone,
false),
AlarmStream(AudioManager.STREAM_ALARM,
R.string.volume_alarm,
R.drawable.ic_audio_alarm,
R.drawable.ic_audio_alarm_mute,
false),
MediaStream(AudioManager.STREAM_MUSIC,
R.string.volume_icon_description_media,
R.drawable.ic_audio_vol,
R.drawable.ic_audio_vol_mute,
true),
NotificationStream(AudioManager.STREAM_NOTIFICATION,
R.string.volume_icon_description_notification,
R.drawable.ic_audio_notification,
R.drawable.ic_audio_notification_mute,
true);
int streamType;
int descRes;
int iconRes;
int iconMuteRes;
// RING, VOICE_CALL & BLUETOOTH_SCO are hidden unless explicitly requested
boolean show;
StreamResources(int streamType, int descRes, int iconRes, int iconMuteRes, boolean show) {
this.streamType = streamType;
this.descRes = descRes;
this.iconRes = iconRes;
this.iconMuteRes = iconMuteRes;
this.show = show;
}
};
// List of stream types and their order
private static final StreamResources[] STREAMS = {
StreamResources.BluetoothSCOStream,
StreamResources.RingerStream,
StreamResources.VoiceStream,
StreamResources.MediaStream,
StreamResources.NotificationStream,
StreamResources.AlarmStream
};
/** Object that contains data for each slider */
private class StreamControl {
int streamType;
ViewGroup group;
ImageView icon;
SeekBar seekbarView;
int iconRes;
int iconMuteRes;
}
// Synchronize when accessing this
private ToneGenerator mToneGenerators[];
private Vibrator mVibrator;
public VolumePanel(final Context context, AudioService volumeService) {
mContext = context;
mAudioManager = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE);
mAudioService = volumeService;
LayoutInflater inflater = (LayoutInflater) context
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View view = mView = inflater.inflate(R.layout.volume_adjust, null);
mView.setOnTouchListener(new View.OnTouchListener() {
public boolean onTouch(View v, MotionEvent event) {
resetTimeout();
return false;
}
});
mPanel = (ViewGroup) mView.findViewById(R.id.visible_panel);
mSliderGroup = (ViewGroup) mView.findViewById(R.id.slider_group);
mMoreButton = (ImageView) mView.findViewById(R.id.expand_button);
mDivider = (ImageView) mView.findViewById(R.id.expand_button_divider);
mDialog = new Dialog(context, R.style.Theme_Panel_Volume) {
public boolean onTouchEvent(MotionEvent event) {
if (isShowing() && event.getAction() == MotionEvent.ACTION_OUTSIDE) {
forceTimeout();
return true;
}
return false;
}
};
mDialog.setTitle("Volume control"); // No need to localize
mDialog.setContentView(mView);
mDialog.setOnDismissListener(new OnDismissListener() {
public void onDismiss(DialogInterface dialog) {
mActiveStreamType = -1;
mAudioManager.forceVolumeControlStream(mActiveStreamType);
}
});
// Change some window properties
Window window = mDialog.getWindow();
window.setGravity(Gravity.TOP);
LayoutParams lp = window.getAttributes();
lp.token = null;
// Offset from the top
lp.y = mContext.getResources().getDimensionPixelOffset(
com.android.internal.R.dimen.volume_panel_top);
lp.type = LayoutParams.TYPE_VOLUME_OVERLAY;
lp.width = LayoutParams.WRAP_CONTENT;
lp.height = LayoutParams.WRAP_CONTENT;
window.setAttributes(lp);
window.addFlags(LayoutParams.FLAG_NOT_FOCUSABLE | LayoutParams.FLAG_NOT_TOUCH_MODAL
| LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH);
mToneGenerators = new ToneGenerator[AudioSystem.getNumStreamTypes()];
mVibrator = new Vibrator();
mVoiceCapable = context.getResources().getBoolean(R.bool.config_voice_capable);
mShowCombinedVolumes = !mVoiceCapable;
// If we don't want to show multiple volumes, hide the settings button and divider
if (!mShowCombinedVolumes) {
mMoreButton.setVisibility(View.GONE);
mDivider.setVisibility(View.GONE);
} else {
mMoreButton.setOnClickListener(this);
}
listenToRingerMode();
}
private void listenToRingerMode() {
final IntentFilter filter = new IntentFilter();
filter.addAction(AudioManager.RINGER_MODE_CHANGED_ACTION);
mContext.registerReceiver(new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
final String action = intent.getAction();
if (AudioManager.RINGER_MODE_CHANGED_ACTION.equals(action)) {
removeMessages(MSG_RINGER_MODE_CHANGED);
sendMessage(obtainMessage(MSG_RINGER_MODE_CHANGED));
}
}
}, filter);
}
private boolean isMuted(int streamType) {
return mAudioManager.isStreamMute(streamType);
}
private void createSliders() {
LayoutInflater inflater = (LayoutInflater) mContext
.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
mStreamControls = new HashMap<Integer, StreamControl>(STREAMS.length);
Resources res = mContext.getResources();
for (int i = 0; i < STREAMS.length; i++) {
StreamResources streamRes = STREAMS[i];
int streamType = streamRes.streamType;
if (mVoiceCapable && streamRes == StreamResources.NotificationStream) {
streamRes = StreamResources.RingerStream;
}
StreamControl sc = new StreamControl();
sc.streamType = streamType;
sc.group = (ViewGroup) inflater.inflate(R.layout.volume_adjust_item, null);
sc.group.setTag(sc);
sc.icon = (ImageView) sc.group.findViewById(R.id.stream_icon);
sc.icon.setTag(sc);
sc.icon.setContentDescription(res.getString(streamRes.descRes));
sc.iconRes = streamRes.iconRes;
sc.iconMuteRes = streamRes.iconMuteRes;
sc.icon.setImageResource(sc.iconRes);
sc.seekbarView = (SeekBar) sc.group.findViewById(R.id.seekbar);
int plusOne = (streamType == AudioSystem.STREAM_BLUETOOTH_SCO ||
streamType == AudioSystem.STREAM_VOICE_CALL) ? 1 : 0;
sc.seekbarView.setMax(mAudioManager.getStreamMaxVolume(streamType) + plusOne);
sc.seekbarView.setOnSeekBarChangeListener(this);
sc.seekbarView.setTag(sc);
mStreamControls.put(streamType, sc);
}
}
private void reorderSliders(int activeStreamType) {
mSliderGroup.removeAllViews();
StreamControl active = mStreamControls.get(activeStreamType);
if (active == null) {
Log.e("VolumePanel", "Missing stream type! - " + activeStreamType);
mActiveStreamType = -1;
} else {
mSliderGroup.addView(active.group);
mActiveStreamType = activeStreamType;
active.group.setVisibility(View.VISIBLE);
updateSlider(active);
}
addOtherVolumes();
}
private void addOtherVolumes() {
if (!mShowCombinedVolumes) return;
for (int i = 0; i < STREAMS.length; i++) {
// Skip the phone specific ones and the active one
final int streamType = STREAMS[i].streamType;
if (!STREAMS[i].show || streamType == mActiveStreamType) {
continue;
}
StreamControl sc = mStreamControls.get(streamType);
mSliderGroup.addView(sc.group);
updateSlider(sc);
}
}
/** Update the mute and progress state of a slider */
private void updateSlider(StreamControl sc) {
sc.seekbarView.setProgress(mAudioManager.getLastAudibleStreamVolume(sc.streamType));
final boolean muted = isMuted(sc.streamType);
sc.icon.setImageResource(muted ? sc.iconMuteRes : sc.iconRes);
if (sc.streamType == AudioManager.STREAM_RING && muted
&& mAudioManager.shouldVibrate(AudioManager.VIBRATE_TYPE_RINGER)) {
sc.icon.setImageResource(R.drawable.ic_audio_ring_notif_vibrate);
}
}
private boolean isExpanded() {
return mMoreButton.getVisibility() != View.VISIBLE;
}
private void expand() {
final int count = mSliderGroup.getChildCount();
for (int i = 0; i < count; i++) {
mSliderGroup.getChildAt(i).setVisibility(View.VISIBLE);
}
mMoreButton.setVisibility(View.INVISIBLE);
mDivider.setVisibility(View.INVISIBLE);
}
private void collapse() {
mMoreButton.setVisibility(View.VISIBLE);
mDivider.setVisibility(View.VISIBLE);
final int count = mSliderGroup.getChildCount();
for (int i = 1; i < count; i++) {
mSliderGroup.getChildAt(i).setVisibility(View.GONE);
}
}
private void updateStates() {
final int count = mSliderGroup.getChildCount();
for (int i = 0; i < count; i++) {
StreamControl sc = (StreamControl) mSliderGroup.getChildAt(i).getTag();
updateSlider(sc);
}
}
public void postVolumeChanged(int streamType, int flags) {
if (hasMessages(MSG_VOLUME_CHANGED)) return;
if (mStreamControls == null) {
createSliders();
}
removeMessages(MSG_FREE_RESOURCES);
obtainMessage(MSG_VOLUME_CHANGED, streamType, flags).sendToTarget();
}
/**
* Override this if you have other work to do when the volume changes (for
* example, vibrating, playing a sound, etc.). Make sure to call through to
* the superclass implementation.
*/
protected void onVolumeChanged(int streamType, int flags) {
if (LOGD) Log.d(TAG, "onVolumeChanged(streamType: " + streamType + ", flags: " + flags + ")");
if ((flags & AudioManager.FLAG_SHOW_UI) != 0) {
if (mActiveStreamType == -1) {
reorderSliders(streamType);
}
onShowVolumeChanged(streamType, flags);
}
if ((flags & AudioManager.FLAG_PLAY_SOUND) != 0 && ! mRingIsSilent) {
removeMessages(MSG_PLAY_SOUND);
sendMessageDelayed(obtainMessage(MSG_PLAY_SOUND, streamType, flags), PLAY_SOUND_DELAY);
}
if ((flags & AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE) != 0) {
removeMessages(MSG_PLAY_SOUND);
removeMessages(MSG_VIBRATE);
onStopSounds();
}
removeMessages(MSG_FREE_RESOURCES);
sendMessageDelayed(obtainMessage(MSG_FREE_RESOURCES), FREE_DELAY);
resetTimeout();
}
protected void onShowVolumeChanged(int streamType, int flags) {
int index = mAudioService.isStreamMute(streamType) ?
mAudioService.getLastAudibleStreamVolume(streamType)
: mAudioService.getStreamVolume(streamType);
mRingIsSilent = false;
if (LOGD) {
Log.d(TAG, "onShowVolumeChanged(streamType: " + streamType
+ ", flags: " + flags + "), index: " + index);
}
// get max volume for progress bar
int max = mAudioService.getStreamMaxVolume(streamType);
switch (streamType) {
case AudioManager.STREAM_RING: {
// setRingerIcon();
Uri ringuri = RingtoneManager.getActualDefaultRingtoneUri(
mContext, RingtoneManager.TYPE_RINGTONE);
if (ringuri == null) {
mRingIsSilent = true;
}
break;
}
case AudioManager.STREAM_MUSIC: {
// Special case for when Bluetooth is active for music
if ((mAudioManager.getDevicesForStream(AudioManager.STREAM_MUSIC) &
(AudioManager.DEVICE_OUT_BLUETOOTH_A2DP |
AudioManager.DEVICE_OUT_BLUETOOTH_A2DP_HEADPHONES |
AudioManager.DEVICE_OUT_BLUETOOTH_A2DP_SPEAKER)) != 0) {
setMusicIcon(R.drawable.ic_audio_bt, R.drawable.ic_audio_bt_mute);
} else {
setMusicIcon(R.drawable.ic_audio_vol, R.drawable.ic_audio_vol_mute);
}
break;
}
case AudioManager.STREAM_VOICE_CALL: {
/*
* For in-call voice call volume, there is no inaudible volume.
* Rescale the UI control so the progress bar doesn't go all
* the way to zero and don't show the mute icon.
*/
index++;
max++;
break;
}
case AudioManager.STREAM_ALARM: {
break;
}
case AudioManager.STREAM_NOTIFICATION: {
Uri ringuri = RingtoneManager.getActualDefaultRingtoneUri(
mContext, RingtoneManager.TYPE_NOTIFICATION);
if (ringuri == null) {
mRingIsSilent = true;
}
break;
}
case AudioManager.STREAM_BLUETOOTH_SCO: {
/*
* For in-call voice call volume, there is no inaudible volume.
* Rescale the UI control so the progress bar doesn't go all
* the way to zero and don't show the mute icon.
*/
index++;
max++;
break;
}
}
StreamControl sc = mStreamControls.get(streamType);
if (sc != null) {
if (sc.seekbarView.getMax() != max) {
sc.seekbarView.setMax(max);
}
sc.seekbarView.setProgress(index);
}
if (!mDialog.isShowing()) {
mAudioManager.forceVolumeControlStream(streamType);
mDialog.setContentView(mView);
// Showing dialog - use collapsed state
if (mShowCombinedVolumes) {
collapse();
}
mDialog.show();
}
// Do a little vibrate if applicable (only when going into vibrate mode)
if ((flags & AudioManager.FLAG_VIBRATE) != 0 &&
mAudioService.isStreamAffectedByRingerMode(streamType) &&
mAudioService.getRingerMode() == AudioManager.RINGER_MODE_VIBRATE &&
mAudioService.shouldVibrate(AudioManager.VIBRATE_TYPE_RINGER)) {
sendMessageDelayed(obtainMessage(MSG_VIBRATE), VIBRATE_DELAY);
}
}
protected void onPlaySound(int streamType, int flags) {
if (hasMessages(MSG_STOP_SOUNDS)) {
removeMessages(MSG_STOP_SOUNDS);
// Force stop right now
onStopSounds();
}
synchronized (this) {
ToneGenerator toneGen = getOrCreateToneGenerator(streamType);
if (toneGen != null) {
toneGen.startTone(ToneGenerator.TONE_PROP_BEEP);
sendMessageDelayed(obtainMessage(MSG_STOP_SOUNDS), BEEP_DURATION);
}
}
}
protected void onStopSounds() {
synchronized (this) {
int numStreamTypes = AudioSystem.getNumStreamTypes();
for (int i = numStreamTypes - 1; i >= 0; i--) {
ToneGenerator toneGen = mToneGenerators[i];
if (toneGen != null) {
toneGen.stopTone();
}
}
}
}
protected void onVibrate() {
// Make sure we ended up in vibrate ringer mode
if (mAudioService.getRingerMode() != AudioManager.RINGER_MODE_VIBRATE) {
return;
}
mVibrator.vibrate(VIBRATE_DURATION);
}
/**
* Lock on this VolumePanel instance as long as you use the returned ToneGenerator.
*/
private ToneGenerator getOrCreateToneGenerator(int streamType) {
synchronized (this) {
if (mToneGenerators[streamType] == null) {
try {
mToneGenerators[streamType] = new ToneGenerator(streamType, MAX_VOLUME);
} catch (RuntimeException e) {
if (LOGD) {
Log.d(TAG, "ToneGenerator constructor failed with "
+ "RuntimeException: " + e);
}
}
}
return mToneGenerators[streamType];
}
}
/**
* Switch between icons because Bluetooth music is same as music volume, but with
* different icons.
*/
private void setMusicIcon(int resId, int resMuteId) {
StreamControl sc = mStreamControls.get(AudioManager.STREAM_MUSIC);
if (sc != null) {
sc.iconRes = resId;
sc.iconMuteRes = resMuteId;
sc.icon.setImageResource(isMuted(sc.streamType) ? sc.iconMuteRes : sc.iconRes);
}
}
protected void onFreeResources() {
synchronized (this) {
for (int i = mToneGenerators.length - 1; i >= 0; i--) {
if (mToneGenerators[i] != null) {
mToneGenerators[i].release();
}
mToneGenerators[i] = null;
}
}
}
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case MSG_VOLUME_CHANGED: {
onVolumeChanged(msg.arg1, msg.arg2);
break;
}
case MSG_FREE_RESOURCES: {
onFreeResources();
break;
}
case MSG_STOP_SOUNDS: {
onStopSounds();
break;
}
case MSG_PLAY_SOUND: {
onPlaySound(msg.arg1, msg.arg2);
break;
}
case MSG_VIBRATE: {
onVibrate();
break;
}
case MSG_TIMEOUT: {
if (mDialog.isShowing()) {
mDialog.dismiss();
mActiveStreamType = -1;
}
break;
}
case MSG_RINGER_MODE_CHANGED: {
if (mDialog.isShowing()) {
updateStates();
}
break;
}
}
}
private void resetTimeout() {
removeMessages(MSG_TIMEOUT);
sendMessageDelayed(obtainMessage(MSG_TIMEOUT), TIMEOUT_DELAY);
}
private void forceTimeout() {
removeMessages(MSG_TIMEOUT);
sendMessage(obtainMessage(MSG_TIMEOUT));
}
public void onProgressChanged(SeekBar seekBar, int progress,
boolean fromUser) {
final Object tag = seekBar.getTag();
if (fromUser && tag instanceof StreamControl) {
StreamControl sc = (StreamControl) tag;
if (mAudioManager.getStreamVolume(sc.streamType) != progress) {
mAudioManager.setStreamVolume(sc.streamType, progress, 0);
}
}
resetTimeout();
}
public void onStartTrackingTouch(SeekBar seekBar) {
}
public void onStopTrackingTouch(SeekBar seekBar) {
}
public void onClick(View v) {
if (v == mMoreButton) {
expand();
}
resetTimeout();
}
}