/*
* Copyright (C) 2013 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 com.android.server.am;
import android.app.ActivityManager;
import android.content.Context;
import android.os.Handler;
import android.os.Message;
import android.os.RemoteException;
import android.os.UserHandle;
import android.view.WindowManager;
import android.widget.Toast;
import com.android.internal.R;
import cyanogenmod.providers.CMSettings;
/**
* Helper to manage showing/hiding a image to notify them that they are entering
* or exiting lock-to-app mode.
*/
public class LockTaskNotify {
private static final String TAG = "LockTaskNotify";
private final Context mContext;
private final H mHandler;
private Toast mLastToast;
public LockTaskNotify(Context context) {
mContext = context;
mHandler = new H();
}
private boolean hasNavigationBar() {
return mContext.getResources().getBoolean(
com.android.internal.R.bool.config_showNavigationBar)
|| CMSettings.Global.getIntForUser(mContext.getContentResolver(),
CMSettings.Global.DEV_FORCE_SHOW_NAVBAR, 0, UserHandle.USER_CURRENT) == 1;
}
public void showToast(int lockTaskModeState) {
mHandler.obtainMessage(H.SHOW_TOAST, lockTaskModeState, 0 /* Not used */).sendToTarget();
}
public void handleShowToast(int lockTaskModeState) {
final int textResId;
if (lockTaskModeState == ActivityManager.LOCK_TASK_MODE_LOCKED) {
textResId = R.string.lock_to_app_toast_locked;
} else if (lockTaskModeState == ActivityManager.LOCK_TASK_MODE_PINNED) {
textResId = R.string.lock_to_app_toast;
} else {
textResId = hasNavigationBar() ?
R.string.lock_to_app_toast : R.string.lock_to_app_toast_no_navbar;
}
if (mLastToast != null) {
mLastToast.cancel();
}
mLastToast = makeAllUserToastAndShow(mContext.getString(textResId));
}
public void show(boolean starting) {
int showString = R.string.lock_to_app_exit;
if (starting) {
showString = R.string.lock_to_app_start;
}
makeAllUserToastAndShow(mContext.getString(showString));
}
private Toast makeAllUserToastAndShow(String text) {
Toast toast = Toast.makeText(mContext, text, Toast.LENGTH_LONG);
toast.getWindowParams().privateFlags |=
WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS;
toast.show();
return toast;
}
private final class H extends Handler {
private static final int SHOW_TOAST = 3;
@Override
public void handleMessage(Message msg) {
switch(msg.what) {
case SHOW_TOAST:
handleShowToast(msg.arg1);
break;
}
}
}
}