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      1 /*
      2  * Copyright (C) 2007 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 
     18 package android.app;
     19 
     20 import android.content.Context;
     21 import android.os.Binder;
     22 import android.os.RemoteException;
     23 import android.os.IBinder;
     24 import android.os.ServiceManager;
     25 import android.util.Slog;
     26 import android.view.View;
     27 
     28 import com.android.internal.statusbar.IStatusBarService;
     29 
     30 /**
     31  * Allows an app to control the status bar.
     32  *
     33  * @hide
     34  */
     35 public class StatusBarManager {
     36 
     37     public static final int DISABLE_EXPAND = View.STATUS_BAR_DISABLE_EXPAND;
     38     public static final int DISABLE_NOTIFICATION_ICONS = View.STATUS_BAR_DISABLE_NOTIFICATION_ICONS;
     39     public static final int DISABLE_NOTIFICATION_ALERTS
     40             = View.STATUS_BAR_DISABLE_NOTIFICATION_ALERTS;
     41     public static final int DISABLE_NOTIFICATION_TICKER
     42             = View.STATUS_BAR_DISABLE_NOTIFICATION_TICKER;
     43     public static final int DISABLE_SYSTEM_INFO = View.STATUS_BAR_DISABLE_SYSTEM_INFO;
     44     public static final int DISABLE_HOME = View.STATUS_BAR_DISABLE_HOME;
     45     public static final int DISABLE_RECENT = View.STATUS_BAR_DISABLE_RECENT;
     46     public static final int DISABLE_BACK = View.STATUS_BAR_DISABLE_BACK;
     47     public static final int DISABLE_CLOCK = View.STATUS_BAR_DISABLE_CLOCK;
     48 
     49     @Deprecated
     50     public static final int DISABLE_NAVIGATION =
     51             View.STATUS_BAR_DISABLE_HOME | View.STATUS_BAR_DISABLE_RECENT;
     52 
     53     public static final int DISABLE_NONE = 0x00000000;
     54 
     55     public static final int DISABLE_MASK = DISABLE_EXPAND | DISABLE_NOTIFICATION_ICONS
     56             | DISABLE_NOTIFICATION_ALERTS | DISABLE_NOTIFICATION_TICKER
     57             | DISABLE_SYSTEM_INFO | DISABLE_RECENT | DISABLE_HOME | DISABLE_BACK | DISABLE_CLOCK;
     58 
     59     public static final int NAVIGATION_HINT_BACK_NOP      = 1 << 0;
     60     public static final int NAVIGATION_HINT_HOME_NOP      = 1 << 1;
     61     public static final int NAVIGATION_HINT_RECENT_NOP    = 1 << 2;
     62     public static final int NAVIGATION_HINT_BACK_ALT      = 1 << 3;
     63 
     64     private Context mContext;
     65     private IStatusBarService mService;
     66     private IBinder mToken = new Binder();
     67 
     68     StatusBarManager(Context context) {
     69         mContext = context;
     70     }
     71 
     72     private synchronized IStatusBarService getService() {
     73         if (mService == null) {
     74             mService = IStatusBarService.Stub.asInterface(
     75                     ServiceManager.getService(Context.STATUS_BAR_SERVICE));
     76             if (mService == null) {
     77                 Slog.w("StatusBarManager", "warning: no STATUS_BAR_SERVICE");
     78             }
     79         }
     80         return mService;
     81     }
     82 
     83     /**
     84      * Disable some features in the status bar.  Pass the bitwise-or of the DISABLE_* flags.
     85      * To re-enable everything, pass {@link #DISABLE_NONE}.
     86      */
     87     public void disable(int what) {
     88         try {
     89             final IStatusBarService svc = getService();
     90             if (svc != null) {
     91                 svc.disable(what, mToken, mContext.getPackageName());
     92             }
     93         } catch (RemoteException ex) {
     94             // system process is dead anyway.
     95             throw new RuntimeException(ex);
     96         }
     97     }
     98 
     99     /**
    100      * Expand the status bar.
    101      */
    102     public void expand() {
    103         try {
    104             final IStatusBarService svc = getService();
    105             if (svc != null) {
    106                 svc.expand();
    107             }
    108         } catch (RemoteException ex) {
    109             // system process is dead anyway.
    110             throw new RuntimeException(ex);
    111         }
    112     }
    113 
    114     /**
    115      * Collapse the status bar.
    116      */
    117     public void collapse() {
    118         try {
    119             final IStatusBarService svc = getService();
    120             if (svc != null) {
    121                 svc.collapse();
    122             }
    123         } catch (RemoteException ex) {
    124             // system process is dead anyway.
    125             throw new RuntimeException(ex);
    126         }
    127     }
    128 
    129     public void setIcon(String slot, int iconId, int iconLevel, String contentDescription) {
    130         try {
    131             final IStatusBarService svc = getService();
    132             if (svc != null) {
    133                 svc.setIcon(slot, mContext.getPackageName(), iconId, iconLevel,
    134                     contentDescription);
    135             }
    136         } catch (RemoteException ex) {
    137             // system process is dead anyway.
    138             throw new RuntimeException(ex);
    139         }
    140     }
    141 
    142     public void removeIcon(String slot) {
    143         try {
    144             final IStatusBarService svc = getService();
    145             if (svc != null) {
    146                 svc.removeIcon(slot);
    147             }
    148         } catch (RemoteException ex) {
    149             // system process is dead anyway.
    150             throw new RuntimeException(ex);
    151         }
    152     }
    153 
    154     public void setIconVisibility(String slot, boolean visible) {
    155         try {
    156             final IStatusBarService svc = getService();
    157             if (svc != null) {
    158                 svc.setIconVisibility(slot, visible);
    159             }
    160         } catch (RemoteException ex) {
    161             // system process is dead anyway.
    162             throw new RuntimeException(ex);
    163         }
    164     }
    165 }
    166