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 static com.android.settingslib.RestrictedLockUtils.EnforcedAdmin; 20 21 import android.content.Context; 22 import android.content.res.TypedArray; 23 import android.os.UserHandle; 24 import android.support.v14.preference.SwitchPreference; 25 import android.support.v4.content.res.TypedArrayUtils; 26 import android.support.v7.preference.PreferenceManager; 27 import android.support.v7.preference.PreferenceViewHolder; 28 import android.util.AttributeSet; 29 import android.util.TypedValue; 30 import android.view.View; 31 import android.widget.TextView; 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 CharSequence mRestrictedSwitchSummary; 41 RestrictedSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes)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 if (restrictedSwitchSummary != null 61 && restrictedSwitchSummary.type == TypedValue.TYPE_STRING) { 62 if (restrictedSwitchSummary.resourceId != 0) { 63 mRestrictedSwitchSummary = 64 context.getText(restrictedSwitchSummary.resourceId); 65 } else { 66 mRestrictedSwitchSummary = restrictedSwitchSummary.string; 67 } 68 } 69 } 70 if (mUseAdditionalSummary) { 71 setLayoutResource(R.layout.restricted_switch_preference); 72 useAdminDisabledSummary(false); 73 } 74 } 75 RestrictedSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr)76 public RestrictedSwitchPreference(Context context, AttributeSet attrs, int defStyleAttr) { 77 this(context, attrs, defStyleAttr, 0); 78 } 79 RestrictedSwitchPreference(Context context, AttributeSet attrs)80 public RestrictedSwitchPreference(Context context, AttributeSet attrs) { 81 this(context, attrs, TypedArrayUtils.getAttr(context, R.attr.switchPreferenceStyle, 82 android.R.attr.switchPreferenceStyle)); 83 } 84 RestrictedSwitchPreference(Context context)85 public RestrictedSwitchPreference(Context context) { 86 this(context, null); 87 } 88 89 @Override onBindViewHolder(PreferenceViewHolder holder)90 public void onBindViewHolder(PreferenceViewHolder holder) { 91 super.onBindViewHolder(holder); 92 mHelper.onBindViewHolder(holder); 93 94 CharSequence switchSummary; 95 if (mRestrictedSwitchSummary == null) { 96 switchSummary = getContext().getText(isChecked() 97 ? R.string.enabled_by_admin : R.string.disabled_by_admin); 98 } else { 99 switchSummary = mRestrictedSwitchSummary; 100 } 101 102 final View restrictedIcon = holder.findViewById(R.id.restricted_icon); 103 final View switchWidget = holder.findViewById(android.R.id.switch_widget); 104 if (restrictedIcon != null) { 105 restrictedIcon.setVisibility(isDisabledByAdmin() ? View.VISIBLE : View.GONE); 106 } 107 if (switchWidget != null) { 108 switchWidget.setVisibility(isDisabledByAdmin() ? View.GONE : View.VISIBLE); 109 } 110 111 if (mUseAdditionalSummary) { 112 final TextView additionalSummaryView = (TextView) holder.findViewById( 113 R.id.additional_summary); 114 if (additionalSummaryView != null) { 115 if (isDisabledByAdmin()) { 116 additionalSummaryView.setText(switchSummary); 117 additionalSummaryView.setVisibility(View.VISIBLE); 118 } else { 119 additionalSummaryView.setVisibility(View.GONE); 120 } 121 } 122 } else { 123 final TextView summaryView = (TextView) holder.findViewById(android.R.id.summary); 124 if (summaryView != null) { 125 if (isDisabledByAdmin()) { 126 summaryView.setText(switchSummary); 127 summaryView.setVisibility(View.VISIBLE); 128 } 129 // No need to change the visibility to GONE in the else case here since Preference 130 // class would have already changed it if there is no summary to display. 131 } 132 } 133 } 134 135 @Override performClick()136 public void performClick() { 137 if (!mHelper.performClick()) { 138 super.performClick(); 139 } 140 } 141 useAdminDisabledSummary(boolean useSummary)142 public void useAdminDisabledSummary(boolean useSummary) { 143 mHelper.useAdminDisabledSummary(useSummary); 144 } 145 146 @Override onAttachedToHierarchy(PreferenceManager preferenceManager)147 protected void onAttachedToHierarchy(PreferenceManager preferenceManager) { 148 mHelper.onAttachedToHierarchy(); 149 super.onAttachedToHierarchy(preferenceManager); 150 } 151 checkRestrictionAndSetDisabled(String userRestriction)152 public void checkRestrictionAndSetDisabled(String userRestriction) { 153 mHelper.checkRestrictionAndSetDisabled(userRestriction, UserHandle.myUserId()); 154 } 155 checkRestrictionAndSetDisabled(String userRestriction, int userId)156 public void checkRestrictionAndSetDisabled(String userRestriction, int userId) { 157 mHelper.checkRestrictionAndSetDisabled(userRestriction, userId); 158 } 159 160 @Override setEnabled(boolean enabled)161 public void setEnabled(boolean enabled) { 162 if (enabled && isDisabledByAdmin()) { 163 mHelper.setDisabledByAdmin(null); 164 return; 165 } 166 super.setEnabled(enabled); 167 } 168 setDisabledByAdmin(EnforcedAdmin admin)169 public void setDisabledByAdmin(EnforcedAdmin admin) { 170 if (mHelper.setDisabledByAdmin(admin)) { 171 notifyChanged(); 172 } 173 } 174 isDisabledByAdmin()175 public boolean isDisabledByAdmin() { 176 return mHelper.isDisabledByAdmin(); 177 } 178 } 179