1 /*
2  * Copyright (C) 2016 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.phone;
18 
19 import android.content.Context;
20 import android.os.UserHandle;
21 import android.os.UserManager;
22 import android.preference.PreferenceScreen;
23 import android.preference.SwitchPreference;
24 import android.util.AttributeSet;
25 import android.view.View;
26 import android.widget.TextView;
27 
28 import com.android.settingslib.RestrictedLockUtils;
29 import com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
30 
31 public class RestrictedSwitchPreference extends SwitchPreference {
32     private final Context mContext;
33     private boolean mDisabledByAdmin;
34     private final int mSwitchWidgetResId;
35 
RestrictedSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)36     public RestrictedSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr,
37             int defStyleRes) {
38         super(context, attrs, defStyleAttr, defStyleRes);
39         mSwitchWidgetResId = getWidgetLayoutResource();
40         mContext = context;
41     }
42 
RestrictedSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr)43     public RestrictedSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr) {
44         this(context, attrs, defStyleAttr, 0);
45     }
46 
RestrictedSwitchPreference(Context context, AttributeSet attrs)47     public RestrictedSwitchPreference(Context context, AttributeSet attrs) {
48         this(context, attrs, com.android.internal.R.attr.switchPreferenceStyle);
49     }
50 
RestrictedSwitchPreference(Context context)51     public RestrictedSwitchPreference(Context context) {
52         this(context, null);
53     }
54 
55     @Override
onBindView(View view)56     public void onBindView(View view) {
57         super.onBindView(view);
58         if (mDisabledByAdmin) {
59             view.setEnabled(true);
60         }
61         final TextView summaryView = (TextView) view.findViewById(android.R.id.summary);
62         if (summaryView != null && mDisabledByAdmin) {
63             summaryView.setText(
64                     isChecked() ? R.string.enabled_by_admin : R.string.disabled_by_admin);
65             summaryView.setVisibility(View.VISIBLE);
66         }
67     }
68 
checkRestrictionAndSetDisabled(String userRestriction)69     public void checkRestrictionAndSetDisabled(String userRestriction) {
70         UserManager um = UserManager.get(mContext);
71         UserHandle user = UserHandle.of(um.getUserHandle());
72         boolean disabledByAdmin = um.hasUserRestriction(userRestriction, user)
73                 && !um.hasBaseUserRestriction(userRestriction, user);
74         setDisabledByAdmin(disabledByAdmin);
75     }
76 
77     @Override
setEnabled(boolean enabled)78     public void setEnabled(boolean enabled) {
79         if (enabled && mDisabledByAdmin) {
80             setDisabledByAdmin(false);
81         } else {
82             super.setEnabled(enabled);
83         }
84     }
85 
setDisabledByAdmin(boolean disabled)86     public void setDisabledByAdmin(boolean disabled) {
87         if (mDisabledByAdmin != disabled) {
88             mDisabledByAdmin = disabled;
89             setWidgetLayoutResource(disabled ? R.layout.restricted_icon : mSwitchWidgetResId);
90             setEnabled(!disabled);
91         }
92     }
93 
94     @Override
performClick(PreferenceScreen preferenceScreen)95     public void performClick(PreferenceScreen preferenceScreen) {
96         if (mDisabledByAdmin) {
97             RestrictedLockUtils.sendShowAdminSupportDetailsIntent(mContext,
98                     new EnforcedAdmin());
99         } else {
100             super.performClick(preferenceScreen);
101         }
102     }
103 }
104