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      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.packageinstaller.permission.ui.handheld;
     18 
     19 import android.content.Context;
     20 import android.preference.PreferenceScreen;
     21 import android.preference.SwitchPreference;
     22 import android.util.AttributeSet;
     23 import android.view.View;
     24 import android.widget.TextView;
     25 
     26 import com.android.packageinstaller.R;
     27 import com.android.settingslib.RestrictedLockUtils;
     28 
     29 import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin;
     30 
     31 public class RestrictedSwitchPreference extends SwitchPreference {
     32     private final Context mContext;
     33     private boolean mDisabledByAdmin;
     34     private EnforcedAdmin mEnforcedAdmin;
     35     private final int mSwitchWidgetResId;
     36 
     37     public RestrictedSwitchPreference(Context context) {
     38         super(context);
     39         mSwitchWidgetResId = getWidgetLayoutResource();
     40         mContext = context;
     41     }
     42 
     43     @Override
     44     public void onBindView(View view) {
     45         super.onBindView(view);
     46         if (mDisabledByAdmin) {
     47             view.setEnabled(true);
     48         }
     49         if (mDisabledByAdmin) {
     50             final TextView summaryView = (TextView) view.findViewById(android.R.id.summary);
     51             if (summaryView != null) {
     52                 summaryView.setText(
     53                         isChecked() ? R.string.enabled_by_admin : R.string.disabled_by_admin);
     54                 summaryView.setVisibility(View.VISIBLE);
     55             }
     56         }
     57     }
     58 
     59     @Override
     60     public void setEnabled(boolean enabled) {
     61         if (enabled && mDisabledByAdmin) {
     62             setDisabledByAdmin(null);
     63         } else {
     64             super.setEnabled(enabled);
     65         }
     66     }
     67 
     68     public void setDisabledByAdmin(EnforcedAdmin admin) {
     69         final boolean disabled = (admin != null ? true : false);
     70         mEnforcedAdmin = admin;
     71         if (mDisabledByAdmin != disabled) {
     72             mDisabledByAdmin = disabled;
     73             setWidgetLayoutResource(disabled ? R.layout.restricted_icon : mSwitchWidgetResId);
     74             setEnabled(!disabled);
     75         }
     76     }
     77 
     78     @Override
     79     public void performClick(PreferenceScreen preferenceScreen) {
     80         if (mDisabledByAdmin) {
     81             RestrictedLockUtils.sendShowAdminSupportDetailsIntent(mContext, mEnforcedAdmin);
     82         } else {
     83             super.performClick(preferenceScreen);
     84         }
     85     }
     86 }