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package com.android.server.status.widget;
import com.android.internal.R;
import com.android.server.status.widget.PowerButton;
import android.app.Activity;
import android.app.KeyguardManager;
import android.app.KeyguardManager.KeyguardLock;
import android.content.Context;
import android.content.SharedPreferences;
import android.view.Gravity;
import android.widget.Toast;
public class LockScreenButton extends PowerButton {
static Boolean lockScreen = null;
public static final String LOCK_SCREEN = "lockScreen";
static LockScreenButton ownButton = null;
KeyguardLock lock;
private KeyguardLock getLock(Context context) {
if (lock == null) {
KeyguardManager keyguardManager = (KeyguardManager)context.
getSystemService(Activity.KEYGUARD_SERVICE);
lock = keyguardManager.newKeyguardLock(Context.KEYGUARD_SERVICE);
}
return lock;
}
public void updateState(Context context) {
getState(context);
if (lockScreen == null) {
currentIcon = R.drawable.stat_lock_screen_off;
currentState = PowerButton.STATE_INTERMEDIATE;
} else if (lockScreen) {
currentIcon = R.drawable.stat_lock_screen_on;
currentState = PowerButton.STATE_ENABLED;
} else {
currentIcon = R.drawable.stat_lock_screen_off;
currentState = PowerButton.STATE_DISABLED;
}
}
/**
* Toggles the state of GPS.
*
* @param context
*/
public void toggleState(Context context) {
getState(context);
if(lockScreen == null) {
Toast msg = Toast.makeText(context, "Not yet initialized", Toast.LENGTH_LONG);
msg.setGravity(Gravity.CENTER, msg.getXOffset() / 2, msg.getYOffset() / 2);
msg.show();
} else {
getLock(context);
if (lockScreen && lock != null) {
lock.disableKeyguard();
lockScreen = false;
} else if (lock != null) {
lock.reenableKeyguard();
lockScreen = true;
}
}
}
/**
* Gets the state of GPS location.
*
* @param context
* @return true if enabled.
*/
private static boolean getState(Context context) {
if (lockScreen == null) {
lockScreen = true;
}
return lockScreen;
}
public static LockScreenButton getInstance() {
if (ownButton==null) ownButton = new LockScreenButton();
return ownButton;
}
@Override
void initButton(int position) {
}
}
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