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/*
* Copyright (C) 2015 The CyanogenMod 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 cyanogenmod.profiles;
import android.content.Context;
import android.os.Parcel;
import android.os.Parcelable;
import cyanogenmod.os.Build;
import cyanogenmod.os.Concierge;
import cyanogenmod.os.Concierge.ParcelInfo;
import java.io.IOException;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
/**
* The {@link StreamSettings} class allows for creating various {@link android.media.AudioManager}
* overrides on the device depending on their capabilities.
*
* <p>Example for setting the alarm stream defaults and override:
* <pre class="prettyprint">
* StreamSettings alarmStreamSettings = new StreamSettings(AudioManager.STREAM_ALARM,
* am.getStreamVolume(AudioManager.STREAM_ALARM), true));
* profile.setStreamSettings(alarmStreamSettings);
* </pre>
*/
public final class StreamSettings implements Parcelable{
private int mStreamId;
private int mValue;
private boolean mOverride;
private boolean mDirty;
/** @hide */
public static final Parcelable.Creator<StreamSettings> CREATOR =
new Parcelable.Creator<StreamSettings>() {
public StreamSettings createFromParcel(Parcel in) {
return new StreamSettings(in);
}
@Override
public StreamSettings[] newArray(int size) {
return new StreamSettings[size];
}
};
/**
* Unwrap {@link StreamSettings} from a parcel.
* @param parcel
*/
public StreamSettings(Parcel parcel) {
readFromParcel(parcel);
}
/**
* Construct a {@link StreamSettings} with a stream id and default states.
* @param streamId ex: {@link android.media.AudioManager#STREAM_ALARM}
*/
public StreamSettings(int streamId) {
this(streamId, 0, false);
}
/**
* Construct a {@link StreamSettings} with a stream id, default value,
* and if the setting should override the user defaults.
* @param streamId ex: {@link android.media.AudioManager#STREAM_ALARM}
* @param value default value for the {@link StreamSettings}
* @param override whether or not the {@link StreamSettings} should override user defaults
*/
public StreamSettings(int streamId, int value, boolean override) {
mStreamId = streamId;
mValue = value;
mOverride = override;
mDirty = false;
}
/**
* Retrieve the stream id id associated with the {@link StreamSettings}
* @return an integer identifier
*/
public int getStreamId() {
return mStreamId;
}
/**
* Get the default value for the {@link StreamSettings}
* @return integer value corresponding with its state
*/
public int getValue() {
return mValue;
}
/**
* Set the default value for the {@link StreamSettings}
* @param value see {@link android.media.AudioManager} for viable values
*/
public void setValue(int value) {
mValue = value;
mDirty = true;
}
/**
* Set whether or not the {@link StreamSettings} should override default user values
* @param override boolean override
*/
public void setOverride(boolean override) {
mOverride = override;
mDirty = true;
}
/**
* Check whether or not the {@link StreamSettings} overrides user settings.
* @return true if override
*/
public boolean isOverride() {
return mOverride;
}
/** @hide */
public boolean isDirty() {
return mDirty;
}
/** @hide */
public static StreamSettings fromXml(XmlPullParser xpp, Context context)
throws XmlPullParserException, IOException {
int event = xpp.next();
StreamSettings streamDescriptor = new StreamSettings(0);
while (event != XmlPullParser.END_TAG || !xpp.getName().equals("streamDescriptor")) {
if (event == XmlPullParser.START_TAG) {
String name = xpp.getName();
if (name.equals("streamId")) {
streamDescriptor.mStreamId = Integer.parseInt(xpp.nextText());
} else if (name.equals("value")) {
streamDescriptor.mValue = Integer.parseInt(xpp.nextText());
} else if (name.equals("override")) {
streamDescriptor.mOverride = Boolean.parseBoolean(xpp.nextText());
}
} else if (event == XmlPullParser.END_DOCUMENT) {
throw new IOException("Premature end of file while parsing stream settings");
}
event = xpp.next();
}
return streamDescriptor;
}
/** @hide */
public void getXmlString(StringBuilder builder, Context context) {
builder.append("<streamDescriptor>\n<streamId>");
builder.append(mStreamId);
builder.append("</streamId>\n<value>");
builder.append(mValue);
builder.append("</value>\n<override>");
builder.append(mOverride);
builder.append("</override>\n</streamDescriptor>\n");
mDirty = false;
}
@Override
public int describeContents() {
return 0;
}
/** @hide */
@Override
public void writeToParcel(Parcel dest, int flags) {
// Tell the concierge to prepare the parcel
ParcelInfo parcelInfo = Concierge.prepareParcel(dest);
// === BOYSENBERRY ===
dest.writeInt(mStreamId);
dest.writeInt(mOverride ? 1 : 0);
dest.writeInt(mValue);
dest.writeInt(mDirty ? 1 : 0);
// Complete the parcel info for the concierge
parcelInfo.complete();
}
/** @hide */
public void readFromParcel(Parcel in) {
// Read parcelable version via the Concierge
ParcelInfo parcelInfo = Concierge.receiveParcel(in);
int parcelableVersion = parcelInfo.getParcelVersion();
// Pattern here is that all new members should be added to the end of
// the writeToParcel method. Then we step through each version, until the latest
// API release to help unravel this parcel
if (parcelableVersion >= Build.CM_VERSION_CODES.BOYSENBERRY) {
mStreamId = in.readInt();
mOverride = in.readInt() != 0;
mValue = in.readInt();
mDirty = in.readInt() != 0;
}
// Complete parcel info for the concierge
parcelInfo.complete();
}
}
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