1 /*
2  * Copyright (C) 2014 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.systemui.statusbar.phone;
18 
19 import android.app.AlertDialog;
20 import android.app.Dialog;
21 import android.content.BroadcastReceiver;
22 import android.content.Context;
23 import android.content.DialogInterface;
24 import android.content.Intent;
25 import android.content.IntentFilter;
26 import android.os.UserHandle;
27 import android.view.WindowManager;
28 import android.view.WindowManager.LayoutParams;
29 
30 import com.android.systemui.Dependency;
31 import com.android.systemui.R;
32 import com.android.systemui.statusbar.policy.KeyguardMonitor;
33 
34 
35 /**
36  * Base class for dialogs that should appear over panels and keyguard.
37  */
38 public class SystemUIDialog extends AlertDialog {
39 
40     private final Context mContext;
41 
SystemUIDialog(Context context)42     public SystemUIDialog(Context context) {
43         this(context, R.style.Theme_SystemUI_Dialog);
44     }
45 
SystemUIDialog(Context context, int theme)46     public SystemUIDialog(Context context, int theme) {
47         super(context, theme);
48         mContext = context;
49 
50         applyFlags(this);
51         WindowManager.LayoutParams attrs = getWindow().getAttributes();
52         attrs.setTitle(getClass().getSimpleName());
53         getWindow().setAttributes(attrs);
54 
55         registerDismissListener(this);
56     }
57 
setShowForAllUsers(boolean show)58     public void setShowForAllUsers(boolean show) {
59         setShowForAllUsers(this, show);
60     }
61 
setMessage(int resId)62     public void setMessage(int resId) {
63         setMessage(mContext.getString(resId));
64     }
65 
setPositiveButton(int resId, OnClickListener onClick)66     public void setPositiveButton(int resId, OnClickListener onClick) {
67         setButton(BUTTON_POSITIVE, mContext.getString(resId), onClick);
68     }
69 
setNegativeButton(int resId, OnClickListener onClick)70     public void setNegativeButton(int resId, OnClickListener onClick) {
71         setButton(BUTTON_NEGATIVE, mContext.getString(resId), onClick);
72     }
73 
setNeutralButton(int resId, OnClickListener onClick)74     public void setNeutralButton(int resId, OnClickListener onClick) {
75         setButton(BUTTON_NEUTRAL, mContext.getString(resId), onClick);
76     }
77 
setShowForAllUsers(Dialog dialog, boolean show)78     public static void setShowForAllUsers(Dialog dialog, boolean show) {
79         if (show) {
80             dialog.getWindow().getAttributes().privateFlags |=
81                     WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS;
82         } else {
83             dialog.getWindow().getAttributes().privateFlags &=
84                     ~WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS;
85         }
86     }
87 
setWindowOnTop(Dialog dialog)88     public static void setWindowOnTop(Dialog dialog) {
89         if (Dependency.get(KeyguardMonitor.class).isShowing()) {
90             dialog.getWindow().setType(LayoutParams.TYPE_STATUS_BAR_PANEL);
91         } else {
92             dialog.getWindow().setType(LayoutParams.TYPE_STATUS_BAR_SUB_PANEL);
93         }
94     }
95 
applyFlags(AlertDialog dialog)96     public static AlertDialog applyFlags(AlertDialog dialog) {
97         dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_STATUS_BAR_PANEL);
98         dialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM
99                 | WindowManager.LayoutParams.FLAG_SHOW_WHEN_LOCKED);
100         return dialog;
101     }
102 
registerDismissListener(Dialog dialog)103     public static void registerDismissListener(Dialog dialog) {
104         DismissReceiver dismissReceiver = new DismissReceiver(dialog);
105         dismissReceiver.register();
106     }
107 
108     private static class DismissReceiver extends BroadcastReceiver implements OnDismissListener {
109         private static final IntentFilter INTENT_FILTER = new IntentFilter();
110         static {
111             INTENT_FILTER.addAction(Intent.ACTION_CLOSE_SYSTEM_DIALOGS);
112             INTENT_FILTER.addAction(Intent.ACTION_SCREEN_OFF);
113         }
114 
115         private final Dialog mDialog;
116         private boolean mRegistered;
117 
DismissReceiver(Dialog dialog)118         DismissReceiver(Dialog dialog) {
119             mDialog = dialog;
120         }
121 
register()122         void register() {
123             mDialog.getContext()
124                     .registerReceiverAsUser(this, UserHandle.CURRENT, INTENT_FILTER, null, null);
125             mRegistered = true;
126         }
127 
128         @Override
onReceive(Context context, Intent intent)129         public void onReceive(Context context, Intent intent) {
130             mDialog.dismiss();
131         }
132 
133         @Override
onDismiss(DialogInterface dialog)134         public void onDismiss(DialogInterface dialog) {
135             if (mRegistered) {
136                 mDialog.getContext().unregisterReceiver(this);
137                 mRegistered = false;
138             }
139         }
140     }}
141