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.PreferenceManager; 23 import android.support.v7.preference.PreferenceViewHolder; 24 import android.util.AttributeSet; 25 import android.view.View; 26 27 import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin; 28 29 /** 30 * Preference class that supports being disabled by a user restriction 31 * set by a device admin. 32 */ 33 public class RestrictedPreference extends TwoTargetPreference { 34 RestrictedPreferenceHelper mHelper; 35 RestrictedPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)36 public RestrictedPreference(Context context, AttributeSet attrs, 37 int defStyleAttr, int defStyleRes) { 38 super(context, attrs, defStyleAttr, defStyleRes); 39 mHelper = new RestrictedPreferenceHelper(context, this, attrs); 40 } 41 RestrictedPreference(Context context, AttributeSet attrs, int defStyleAttr)42 public RestrictedPreference(Context context, AttributeSet attrs, int defStyleAttr) { 43 this(context, attrs, defStyleAttr, 0); 44 } 45 RestrictedPreference(Context context, AttributeSet attrs)46 public RestrictedPreference(Context context, AttributeSet attrs) { 47 this(context, attrs, TypedArrayUtils.getAttr(context, 48 android.support.v7.preference.R.attr.preferenceStyle, 49 android.R.attr.preferenceStyle)); 50 } 51 RestrictedPreference(Context context)52 public RestrictedPreference(Context context) { 53 this(context, null); 54 } 55 56 @Override getSecondTargetResId()57 protected int getSecondTargetResId() { 58 return R.layout.restricted_icon; 59 } 60 61 @Override shouldHideSecondTarget()62 protected boolean shouldHideSecondTarget() { 63 return !isDisabledByAdmin(); 64 } 65 66 @Override onBindViewHolder(PreferenceViewHolder holder)67 public void onBindViewHolder(PreferenceViewHolder holder) { 68 super.onBindViewHolder(holder); 69 mHelper.onBindViewHolder(holder); 70 final View restrictedIcon = holder.findViewById(R.id.restricted_icon); 71 if (restrictedIcon != null) { 72 restrictedIcon.setVisibility(isDisabledByAdmin() ? View.VISIBLE : View.GONE); 73 } 74 } 75 76 @Override performClick()77 public void performClick() { 78 if (!mHelper.performClick()) { 79 super.performClick(); 80 } 81 } 82 useAdminDisabledSummary(boolean useSummary)83 public void useAdminDisabledSummary(boolean useSummary) { 84 mHelper.useAdminDisabledSummary(useSummary); 85 } 86 87 @Override onAttachedToHierarchy(PreferenceManager preferenceManager)88 protected void onAttachedToHierarchy(PreferenceManager preferenceManager) { 89 mHelper.onAttachedToHierarchy(); 90 super.onAttachedToHierarchy(preferenceManager); 91 } 92 checkRestrictionAndSetDisabled(String userRestriction)93 public void checkRestrictionAndSetDisabled(String userRestriction) { 94 mHelper.checkRestrictionAndSetDisabled(userRestriction, UserHandle.myUserId()); 95 } 96 checkRestrictionAndSetDisabled(String userRestriction, int userId)97 public void checkRestrictionAndSetDisabled(String userRestriction, int userId) { 98 mHelper.checkRestrictionAndSetDisabled(userRestriction, userId); 99 } 100 101 @Override setEnabled(boolean enabled)102 public void setEnabled(boolean enabled) { 103 if (enabled && isDisabledByAdmin()) { 104 mHelper.setDisabledByAdmin(null); 105 return; 106 } 107 super.setEnabled(enabled); 108 } 109 setDisabledByAdmin(EnforcedAdmin admin)110 public void setDisabledByAdmin(EnforcedAdmin admin) { 111 if (mHelper.setDisabledByAdmin(admin)) { 112 notifyChanged(); 113 } 114 } 115 isDisabledByAdmin()116 public boolean isDisabledByAdmin() { 117 return mHelper.isDisabledByAdmin(); 118 } 119 } 120