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/*
* Copyright (C) 2016 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 org.cyanogenmod.platform.internal.display;
import android.content.ContentResolver;
import android.content.Context;
import android.net.Uri;
import android.os.Handler;
import android.os.UserHandle;
import android.util.Log;
import com.android.server.pm.UserContentObserver;
import com.android.server.twilight.TwilightState;
import java.io.PrintWriter;
import java.util.BitSet;
import cyanogenmod.providers.CMSettings;
public abstract class LiveDisplayFeature {
protected static final String TAG = "LiveDisplay";
protected static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
protected final Context mContext;
protected final Handler mHandler;
private TwilightState mTwilight;
private boolean mLowPowerMode = false;
private boolean mScreenOn = false;
private int mMode = 0;
private final SettingsObserver mSettingsObserver;
public LiveDisplayFeature(Context context, Handler handler) {
mContext = context;
mHandler = handler;
mSettingsObserver = new SettingsObserver(handler);
}
public abstract boolean onStart();
public abstract void onSettingsChanged(Uri uri);
public void onModeChanged(int mode) {
mMode = mode;
}
public void onDisplayStateChanged(boolean screenOn) {
mScreenOn = screenOn;
}
public void onLowPowerModeChanged(boolean lowPowerMode) {
mLowPowerMode = lowPowerMode;
}
public void onTwilightUpdated(TwilightState twilight) {
mTwilight = twilight;
}
public void onDestroy() {
mSettingsObserver.unregister();
}
public abstract void dump(PrintWriter pw);
abstract void getCapabilities(final BitSet caps);
protected final void registerSettings(Uri... settings) {
mSettingsObserver.register(settings);
onSettingsChanged(null);
}
protected final int getInt(String setting, int defaultValue) {
return CMSettings.System.getIntForUser(mContext.getContentResolver(),
setting, defaultValue, UserHandle.USER_CURRENT);
}
protected final void putInt(String setting, int value) {
CMSettings.System.putIntForUser(mContext.getContentResolver(),
setting, value, UserHandle.USER_CURRENT);
}
protected final String getString(String setting) {
return CMSettings.System.getStringForUser(mContext.getContentResolver(),
setting, UserHandle.USER_CURRENT);
}
protected final void putString(String setting, String value) {
CMSettings.System.putStringForUser(mContext.getContentResolver(),
setting, value, UserHandle.USER_CURRENT);
}
protected final boolean isLowPowerMode() {
return mLowPowerMode;
}
protected final int getMode() {
return mMode;
}
protected final boolean isScreenOn() {
return mScreenOn;
}
protected final TwilightState getTwilight() {
return mTwilight;
}
protected final boolean isNight() {
return mTwilight != null && mTwilight.isNight();
}
final class SettingsObserver extends UserContentObserver {
public SettingsObserver(Handler handler) {
super(handler);
}
public void register(Uri... uris) {
final ContentResolver cr = mContext.getContentResolver();
for (Uri uri : uris) {
cr.registerContentObserver(uri, false, this, UserHandle.USER_ALL);
}
observe();
}
public void unregister() {
mContext.getContentResolver().unregisterContentObserver(this);
unobserve();
}
@Override
protected void update() {
onSettingsChanged(null);
}
@Override
public void onChange(boolean selfChange, Uri uri) {
onSettingsChanged(uri);
}
}
}
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