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.settingslib; 18 19 import android.content.Context; 20 import android.os.UserHandle; 21 import android.support.v4.content.res.TypedArrayUtils; 22 import android.support.v7.preference.Preference; 23 import android.support.v7.preference.PreferenceManager; 24 import android.support.v7.preference.PreferenceViewHolder; 25 import android.util.AttributeSet; 26 import android.view.View; 27 28 import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin; 29 30 /** 31 * Preference class that supports being disabled by a user restriction 32 * set by a device admin. 33 */ 34 public class RestrictedPreference extends Preference { 35 RestrictedPreferenceHelper mHelper; 36 RestrictedPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)37 public RestrictedPreference(Context context, AttributeSet attrs, 38 int defStyleAttr, int defStyleRes) { 39 super(context, attrs, defStyleAttr, defStyleRes); 40 setWidgetLayoutResource(R.layout.restricted_icon); 41 mHelper = new RestrictedPreferenceHelper(context, this, attrs); 42 } 43 RestrictedPreference(Context context, AttributeSet attrs, int defStyleAttr)44 public RestrictedPreference(Context context, AttributeSet attrs, int defStyleAttr) { 45 this(context, attrs, defStyleAttr, 0); 46 } 47 RestrictedPreference(Context context, AttributeSet attrs)48 public RestrictedPreference(Context context, AttributeSet attrs) { 49 this(context, attrs, TypedArrayUtils.getAttr(context, 50 android.support.v7.preference.R.attr.preferenceStyle, 51 android.R.attr.preferenceStyle)); 52 } 53 RestrictedPreference(Context context)54 public RestrictedPreference(Context context) { 55 this(context, null); 56 } 57 58 @Override onBindViewHolder(PreferenceViewHolder holder)59 public void onBindViewHolder(PreferenceViewHolder holder) { 60 super.onBindViewHolder(holder); 61 mHelper.onBindViewHolder(holder); 62 final View restrictedIcon = holder.findViewById(R.id.restricted_icon); 63 if (restrictedIcon != null) { 64 restrictedIcon.setVisibility(isDisabledByAdmin() ? View.VISIBLE : View.GONE); 65 } 66 } 67 68 @Override performClick()69 public void performClick() { 70 if (!mHelper.performClick()) { 71 super.performClick(); 72 } 73 } 74 useAdminDisabledSummary(boolean useSummary)75 public void useAdminDisabledSummary(boolean useSummary) { 76 mHelper.useAdminDisabledSummary(useSummary); 77 } 78 79 @Override onAttachedToHierarchy(PreferenceManager preferenceManager)80 protected void onAttachedToHierarchy(PreferenceManager preferenceManager) { 81 mHelper.onAttachedToHierarchy(); 82 super.onAttachedToHierarchy(preferenceManager); 83 } 84 checkRestrictionAndSetDisabled(String userRestriction)85 public void checkRestrictionAndSetDisabled(String userRestriction) { 86 mHelper.checkRestrictionAndSetDisabled(userRestriction, UserHandle.myUserId()); 87 } 88 checkRestrictionAndSetDisabled(String userRestriction, int userId)89 public void checkRestrictionAndSetDisabled(String userRestriction, int userId) { 90 mHelper.checkRestrictionAndSetDisabled(userRestriction, userId); 91 } 92 93 @Override setEnabled(boolean enabled)94 public void setEnabled(boolean enabled) { 95 if (enabled && isDisabledByAdmin()) { 96 mHelper.setDisabledByAdmin(null); 97 return; 98 } 99 super.setEnabled(enabled); 100 } 101 setDisabledByAdmin(EnforcedAdmin admin)102 public void setDisabledByAdmin(EnforcedAdmin admin) { 103 if (mHelper.setDisabledByAdmin(admin)) { 104 notifyChanged(); 105 } 106 } 107 isDisabledByAdmin()108 public boolean isDisabledByAdmin() { 109 return mHelper.isDisabledByAdmin(); 110 } 111 } 112