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.content.res.TypedArray; 21 import android.os.UserHandle; 22 import android.support.v4.content.res.TypedArrayUtils; 23 import android.support.v7.preference.PreferenceManager; 24 import android.support.v7.preference.PreferenceViewHolder; 25 import android.support.v14.preference.SwitchPreference; 26 import android.util.AttributeSet; 27 import android.util.TypedValue; 28 import android.view.View; 29 import android.widget.TextView; 30 31 import static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin; 32 33 /** 34 * Version of SwitchPreference that can be disabled by a device admin 35 * using a user restriction. 36 */ 37 public class RestrictedSwitchPreference extends SwitchPreference { 38 RestrictedPreferenceHelper mHelper; 39 boolean mUseAdditionalSummary = false; 40 String mRestrictedSwitchSummary = null; 41 42 public RestrictedSwitchPreference(Context context, AttributeSet attrs, 43 int defStyleAttr, int defStyleRes) { 44 super(context, attrs, defStyleAttr, defStyleRes); 45 setWidgetLayoutResource(R.layout.restricted_switch_widget); 46 mHelper = new RestrictedPreferenceHelper(context, this, attrs); 47 if (attrs != null) { 48 final TypedArray attributes = context.obtainStyledAttributes(attrs, 49 R.styleable.RestrictedSwitchPreference); 50 final TypedValue useAdditionalSummary = attributes.peekValue( 51 R.styleable.RestrictedSwitchPreference_useAdditionalSummary); 52 if (useAdditionalSummary != null) { 53 mUseAdditionalSummary = 54 (useAdditionalSummary.type == TypedValue.TYPE_INT_BOOLEAN 55 && useAdditionalSummary.data != 0); 56 } 57 58 final TypedValue restrictedSwitchSummary = attributes.peekValue( 59 R.styleable.RestrictedSwitchPreference_restrictedSwitchSummary); 60 CharSequence data = null; 61 if (restrictedSwitchSummary != null 62 && restrictedSwitchSummary.type == TypedValue.TYPE_STRING) { 63 if (restrictedSwitchSummary.resourceId != 0) { 64 data = context.getString(restrictedSwitchSummary.resourceId); 65 } else { 66 data = restrictedSwitchSummary.string; 67 } 68 } 69 mRestrictedSwitchSummary = data == null ? null : data.toString(); 70 } 71 if (mRestrictedSwitchSummary == null) { 72 mRestrictedSwitchSummary = context.getString(R.string.disabled_by_admin); 73 } 74 if (mUseAdditionalSummary) { 75 setLayoutResource(R.layout.restricted_switch_preference); 76 useAdminDisabledSummary(false); 77 } 78 } 79 80 public RestrictedSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr) { 81 this(context, attrs, defStyleAttr, 0); 82 } 83 84 public RestrictedSwitchPreference(Context context, AttributeSet attrs) { 85 this(context, attrs, TypedArrayUtils.getAttr(context, 86 android.support.v7.preference.R.attr.switchPreferenceStyle, 87 android.R.attr.switchPreferenceStyle)); 88 } 89 90 public RestrictedSwitchPreference(Context context) { 91 this(context, null); 92 } 93 94 @Override 95 public void onBindViewHolder(PreferenceViewHolder holder) { 96 super.onBindViewHolder(holder); 97 mHelper.onBindViewHolder(holder); 98 final View restrictedIcon = holder.findViewById(R.id.restricted_icon); 99 final View switchWidget = holder.findViewById(android.R.id.switch_widget); 100 if (restrictedIcon != null) { 101 restrictedIcon.setVisibility(isDisabledByAdmin() ? View.VISIBLE : View.GONE); 102 } 103 if (switchWidget != null) { 104 switchWidget.setVisibility(isDisabledByAdmin() ? View.GONE : View.VISIBLE); 105 } 106 if (mUseAdditionalSummary) { 107 final TextView additionalSummaryView = (TextView) holder.findViewById( 108 R.id.additional_summary); 109 if (additionalSummaryView != null) { 110 if (isDisabledByAdmin()) { 111 additionalSummaryView.setText(mRestrictedSwitchSummary); 112 additionalSummaryView.setVisibility(View.VISIBLE); 113 } else { 114 additionalSummaryView.setVisibility(View.GONE); 115 } 116 } 117 } else { 118 final TextView summaryView = (TextView) holder.findViewById(android.R.id.summary); 119 if (summaryView != null) { 120 if (isDisabledByAdmin()) { 121 summaryView.setText(mRestrictedSwitchSummary); 122 summaryView.setVisibility(View.VISIBLE); 123 } 124 // No need to change the visibility to GONE in the else case here since Preference 125 // class would have already changed it if there is no summary to display. 126 } 127 } 128 } 129 130 @Override 131 public void performClick() { 132 if (!mHelper.performClick()) { 133 super.performClick(); 134 } 135 } 136 137 public void useAdminDisabledSummary(boolean useSummary) { 138 mHelper.useAdminDisabledSummary(useSummary); 139 } 140 141 @Override 142 protected void onAttachedToHierarchy(PreferenceManager preferenceManager) { 143 mHelper.onAttachedToHierarchy(); 144 super.onAttachedToHierarchy(preferenceManager); 145 } 146 147 public void checkRestrictionAndSetDisabled(String userRestriction) { 148 mHelper.checkRestrictionAndSetDisabled(userRestriction, UserHandle.myUserId()); 149 } 150 151 public void checkRestrictionAndSetDisabled(String userRestriction, int userId) { 152 mHelper.checkRestrictionAndSetDisabled(userRestriction, userId); 153 } 154 155 @Override 156 public void setEnabled(boolean enabled) { 157 if (enabled && isDisabledByAdmin()) { 158 mHelper.setDisabledByAdmin(null); 159 return; 160 } 161 super.setEnabled(enabled); 162 } 163 164 public void setDisabledByAdmin(EnforcedAdmin admin) { 165 if (mHelper.setDisabledByAdmin(admin)) { 166 notifyChanged(); 167 } 168 } 169 170 public boolean isDisabledByAdmin() { 171 return mHelper.isDisabledByAdmin(); 172 } 173 } 174
