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      1 /*
      2  * Copyright (C) 2012 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package com.android.deskclock;
     18 
     19 import android.app.Activity;
     20 import android.app.AlarmManager;
     21 import android.app.PendingIntent;
     22 import android.content.BroadcastReceiver;
     23 import android.content.Context;
     24 import android.content.Intent;
     25 import android.content.IntentFilter;
     26 import android.content.res.Configuration;
     27 import android.os.BatteryManager;
     28 import android.os.Handler;
     29 import android.util.Log;
     30 import android.view.View;
     31 import android.view.Window;
     32 import android.view.WindowManager;
     33 
     34 import com.android.deskclock.Utils.ScreensaverMoveSaverRunnable;
     35 
     36 public class ScreensaverActivity extends Activity {
     37     static final boolean DEBUG = false;
     38     static final String TAG = "DeskClock/ScreensaverActivity";
     39 
     40     // This value must match android:defaultValue of
     41     // android:key="screensaver_clock_style" in dream_settings.xml
     42     static final String DEFAULT_CLOCK_STYLE = "digital";
     43 
     44     private View mContentView, mSaverView;
     45     private View mAnalogClock, mDigitalClock;
     46 
     47     private final Handler mHandler = new Handler();
     48     private final ScreensaverMoveSaverRunnable mMoveSaverRunnable;
     49     private String mDateFormat;
     50     private String mDateFormatForAccessibility;
     51     private PendingIntent mQuarterlyIntent;
     52     private String mClockStyle;
     53     private boolean mPluggedIn = true;
     54     private final int mFlags = (WindowManager.LayoutParams.FLAG_DISMISS_KEYGUARD
     55             | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED
     56             | WindowManager.LayoutParams.FLAG_ALLOW_LOCK_WHILE_SCREEN_ON
     57             | WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
     58 
     59     private final BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {
     60         @Override
     61         public void onReceive(Context context, Intent intent) {
     62             boolean changed = intent.getAction().equals(Intent.ACTION_TIME_CHANGED)
     63                     || intent.getAction().equals(Intent.ACTION_TIMEZONE_CHANGED);
     64             if (intent.getAction().equals(Intent.ACTION_POWER_CONNECTED)) {
     65                 mPluggedIn = true;
     66                 setWakeLock();
     67             } else if (intent.getAction().equals(Intent.ACTION_POWER_DISCONNECTED)) {
     68                 mPluggedIn = false;
     69                 setWakeLock();
     70             } else if (intent.getAction().equals(Intent.ACTION_USER_PRESENT)) {
     71                 finish();
     72             } else if (intent.getAction().equals(Utils.ACTION_ON_QUARTER_HOUR) || changed) {
     73                 Utils.updateDate(mDateFormat, mDateFormatForAccessibility, mContentView);
     74             }
     75 
     76             if (changed) {
     77                 Utils.refreshAlarm(ScreensaverActivity.this, mContentView);
     78                 mQuarterlyIntent = Utils.refreshAlarmOnQuarterHour(
     79                         ScreensaverActivity.this, mQuarterlyIntent);
     80             }
     81 
     82         }
     83     };
     84 
     85     public ScreensaverActivity() {
     86         if (DEBUG) Log.d(TAG, "Screensaver allocated");
     87         mMoveSaverRunnable = new ScreensaverMoveSaverRunnable(mHandler);
     88     }
     89 
     90     @Override
     91     public void onStart() {
     92         super.onStart();
     93         IntentFilter filter = new IntentFilter();
     94         filter.addAction(Intent.ACTION_POWER_CONNECTED);
     95         filter.addAction(Intent.ACTION_POWER_DISCONNECTED);
     96         filter.addAction(Intent.ACTION_USER_PRESENT);
     97         filter.addAction(Utils.ACTION_ON_QUARTER_HOUR);
     98         filter.addAction(Intent.ACTION_TIME_CHANGED);
     99         filter.addAction(Intent.ACTION_TIMEZONE_CHANGED);
    100         registerReceiver(mIntentReceiver, filter);
    101     }
    102 
    103     @Override
    104     public void onResume() {
    105         super.onResume();
    106         Intent chargingIntent =
    107                 registerReceiver(null, new IntentFilter(Intent.ACTION_BATTERY_CHANGED));
    108         int plugged = chargingIntent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);
    109         mPluggedIn = plugged == BatteryManager.BATTERY_PLUGGED_AC
    110                 || plugged == BatteryManager.BATTERY_PLUGGED_USB
    111                 || plugged == BatteryManager.BATTERY_PLUGGED_WIRELESS;
    112 
    113         mDateFormat = getString(R.string.abbrev_wday_month_day_no_year);
    114         mDateFormatForAccessibility = getString(R.string.full_wday_month_day_no_year);
    115 
    116         setWakeLock();
    117         layoutClockSaver();
    118         mHandler.post(mMoveSaverRunnable);
    119 
    120         mQuarterlyIntent = Utils.startAlarmOnQuarterHour(this);
    121     }
    122 
    123     @Override
    124     public void onPause() {
    125         mHandler.removeCallbacks(mMoveSaverRunnable);
    126         Utils.cancelAlarmOnQuarterHour(this, mQuarterlyIntent);
    127         finish();
    128         super.onPause();
    129     }
    130 
    131     @Override
    132     public void onStop() {
    133         unregisterReceiver(mIntentReceiver);
    134         super.onStop();
    135    }
    136 
    137     @Override
    138     public void onConfigurationChanged(Configuration newConfig) {
    139         if (DEBUG) Log.d(TAG, "Screensaver configuration changed");
    140         super.onConfigurationChanged(newConfig);
    141         mHandler.removeCallbacks(mMoveSaverRunnable);
    142         layoutClockSaver();
    143         mHandler.postDelayed(mMoveSaverRunnable, 250);
    144     }
    145 
    146     @Override
    147     public void onUserInteraction() {
    148         // We want the screen saver to exit upon user interaction.
    149         finish();
    150     }
    151 
    152     private void setWakeLock() {
    153         Window win = getWindow();
    154         WindowManager.LayoutParams winParams = win.getAttributes();
    155         winParams.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
    156         if (mPluggedIn)
    157             winParams.flags |= mFlags;
    158         else
    159             winParams.flags &= (~mFlags);
    160         win.setAttributes(winParams);
    161     }
    162 
    163     private void setClockStyle() {
    164         Utils.setClockStyle(this, mDigitalClock, mAnalogClock,
    165                 SettingsActivity.KEY_CLOCK_STYLE);
    166         mSaverView = findViewById(R.id.main_clock);
    167         mClockStyle = (mSaverView == mDigitalClock ?
    168                 Utils.CLOCK_TYPE_DIGITAL : Utils.CLOCK_TYPE_ANALOG);
    169         Utils.dimClockView(true, mSaverView);
    170     }
    171 
    172     private void layoutClockSaver() {
    173         setContentView(R.layout.desk_clock_saver);
    174         mDigitalClock = findViewById(R.id.digital_clock);
    175         mAnalogClock = findViewById(R.id.analog_clock);
    176         setClockStyle();
    177         mContentView = (View) mSaverView.getParent();
    178         mContentView.forceLayout();
    179         mSaverView.forceLayout();
    180         mSaverView.setAlpha(0);
    181 
    182         mMoveSaverRunnable.registerViews(mContentView, mSaverView);
    183 
    184         mContentView.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE
    185                 | View.SYSTEM_UI_FLAG_FULLSCREEN
    186                 | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
    187 
    188         Utils.updateDate(mDateFormat, mDateFormatForAccessibility,mContentView);
    189         Utils.refreshAlarm(ScreensaverActivity.this, mContentView);
    190     }
    191 
    192 }
    193