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/*
* Copyright (C) 2014 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.telecom;
import android.os.Parcel;
import android.os.Parcelable;
import java.util.Locale;
/**
* Encapsulates the telecom audio state, including the current audio routing, supported audio
* routing and mute.
*/
public final class CallAudioState implements Parcelable {
/** Direct the audio stream through the device's earpiece. */
public static final int ROUTE_EARPIECE = 0x00000001;
/** Direct the audio stream through Bluetooth. */
public static final int ROUTE_BLUETOOTH = 0x00000002;
/** Direct the audio stream through a wired headset. */
public static final int ROUTE_WIRED_HEADSET = 0x00000004;
/** Direct the audio stream through the device's speakerphone. */
public static final int ROUTE_SPEAKER = 0x00000008;
/**
* Direct the audio stream through the device's earpiece or wired headset if one is
* connected.
*/
public static final int ROUTE_WIRED_OR_EARPIECE = ROUTE_EARPIECE | ROUTE_WIRED_HEADSET;
/** Bit mask of all possible audio routes. */
private static final int ROUTE_ALL = ROUTE_EARPIECE | ROUTE_BLUETOOTH | ROUTE_WIRED_HEADSET |
ROUTE_SPEAKER;
private final boolean isMuted;
private final int route;
private final int supportedRouteMask;
/**
* Constructor for a {@link CallAudioState} object.
*
* @param muted {@code true} if the call is muted, {@code false} otherwise.
* @param route The current audio route being used.
* Allowed values:
* {@link #ROUTE_EARPIECE}
* {@link #ROUTE_BLUETOOTH}
* {@link #ROUTE_WIRED_HEADSET}
* {@link #ROUTE_SPEAKER}
* @param supportedRouteMask Bit mask of all routes supported by this call. This should be a
* bitwise combination of the following values:
* {@link #ROUTE_EARPIECE}
* {@link #ROUTE_BLUETOOTH}
* {@link #ROUTE_WIRED_HEADSET}
* {@link #ROUTE_SPEAKER}
*/
public CallAudioState(boolean muted, int route, int supportedRouteMask) {
this.isMuted = muted;
this.route = route;
this.supportedRouteMask = supportedRouteMask;
}
/** @hide */
public CallAudioState(CallAudioState state) {
isMuted = state.isMuted();
route = state.getRoute();
supportedRouteMask = state.getSupportedRouteMask();
}
/** @hide */
@SuppressWarnings("deprecation")
public CallAudioState(AudioState state) {
isMuted = state.isMuted();
route = state.getRoute();
supportedRouteMask = state.getSupportedRouteMask();
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (!(obj instanceof CallAudioState)) {
return false;
}
CallAudioState state = (CallAudioState) obj;
return isMuted() == state.isMuted() && getRoute() == state.getRoute() &&
getSupportedRouteMask() == state.getSupportedRouteMask();
}
@Override
public String toString() {
return String.format(Locale.US,
"[AudioState isMuted: %b, route: %s, supportedRouteMask: %s]",
isMuted,
audioRouteToString(route),
audioRouteToString(supportedRouteMask));
}
/**
* @return {@code true} if the call is muted, {@code false} otherwise.
*/
public boolean isMuted() {
return isMuted;
}
/**
* @return The current audio route being used.
*/
public int getRoute() {
return route;
}
/**
* @return Bit mask of all routes supported by this call.
*/
public int getSupportedRouteMask() {
return supportedRouteMask;
}
/**
* Converts the provided audio route into a human readable string representation.
*
* @param route to convert into a string.
*
* @return String representation of the provided audio route.
*/
public static String audioRouteToString(int route) {
if (route == 0 || (route & ~ROUTE_ALL) != 0x0) {
return "UNKNOWN";
}
StringBuffer buffer = new StringBuffer();
if ((route & ROUTE_EARPIECE) == ROUTE_EARPIECE) {
listAppend(buffer, "EARPIECE");
}
if ((route & ROUTE_BLUETOOTH) == ROUTE_BLUETOOTH) {
listAppend(buffer, "BLUETOOTH");
}
if ((route & ROUTE_WIRED_HEADSET) == ROUTE_WIRED_HEADSET) {
listAppend(buffer, "WIRED_HEADSET");
}
if ((route & ROUTE_SPEAKER) == ROUTE_SPEAKER) {
listAppend(buffer, "SPEAKER");
}
return buffer.toString();
}
/**
* Responsible for creating AudioState objects for deserialized Parcels.
*/
public static final Parcelable.Creator<CallAudioState> CREATOR =
new Parcelable.Creator<CallAudioState> () {
@Override
public CallAudioState createFromParcel(Parcel source) {
boolean isMuted = source.readByte() == 0 ? false : true;
int route = source.readInt();
int supportedRouteMask = source.readInt();
return new CallAudioState(isMuted, route, supportedRouteMask);
}
@Override
public CallAudioState[] newArray(int size) {
return new CallAudioState[size];
}
};
/**
* {@inheritDoc}
*/
@Override
public int describeContents() {
return 0;
}
/**
* Writes AudioState object into a serializeable Parcel.
*/
@Override
public void writeToParcel(Parcel destination, int flags) {
destination.writeByte((byte) (isMuted ? 1 : 0));
destination.writeInt(route);
destination.writeInt(supportedRouteMask);
}
private static void listAppend(StringBuffer buffer, String str) {
if (buffer.length() > 0) {
buffer.append(", ");
}
buffer.append(str);
}
}
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