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1 /*
2  * Copyright (C) 2017 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 
18 package com.android.settings.search;
19 
20 import android.content.Intent;
21 
22 import android.content.Context;
23 import android.os.Parcel;
24 import android.provider.Settings;
25 import com.android.internal.annotations.VisibleForTesting;
26 
27 /**
28  * Abstract Payload for inline settings results.
29  */
30 public abstract class InlinePayload extends ResultPayload {
31 
32     public static final int FALSE = 0;
33     public static final int TRUE = 1;
34 
35     /**
36      * Defines the key to access and store the Setting the inline result represents.
37      */
38     private final String mSettingKey;
39 
40     /**
41      * Defines where the Setting is stored.
42      */
43     @SettingsSource final int mSettingSource;
44 
45     /**
46      * True when the setting is available for the device.
47      */
48     final boolean mIsDeviceSupported;
49 
50     /**
51      * The default value for the setting.
52      */
53     final int mDefaultvalue;
54 
55     /**
56      * @param key uniquely identifies the stored setting.
57      * @param source of the setting. Used to determine where to get and set the setting.
58      * @param intent to the setting page.
59      * @param isDeviceSupported is true when the setting is valid for the given device.
60      */
InlinePayload(String key, @SettingsSource int source, Intent intent, boolean isDeviceSupported, int defaultValue)61     public InlinePayload(String key, @SettingsSource int source, Intent intent,
62             boolean isDeviceSupported, int defaultValue) {
63         super(intent);
64         mSettingKey = key;
65         mSettingSource = source;
66         mIsDeviceSupported = isDeviceSupported;
67         mDefaultvalue = defaultValue;
68     }
69 
InlinePayload(Parcel parcel)70     InlinePayload(Parcel parcel) {
71         super(parcel.readParcelable(Intent.class.getClassLoader()));
72         mSettingKey = parcel.readString();
73         mSettingSource = parcel.readInt();
74         mIsDeviceSupported = parcel.readInt() == TRUE;
75         mDefaultvalue = parcel.readInt();
76     }
77 
78     @Override
writeToParcel(Parcel dest, int flags)79     public void writeToParcel(Parcel dest, int flags) {
80         super.writeToParcel(dest, flags);
81         dest.writeString(mSettingKey);
82         dest.writeInt(mSettingSource);
83         dest.writeInt(mIsDeviceSupported ? TRUE : FALSE);
84         dest.writeInt(mDefaultvalue);
85     }
86 
87     @Override
getType()88     @PayloadType public abstract int getType();
89 
90     /**
91      * @returns the status of the underlying setting. See {@link ResultPayload.Availability} for
92      * possible values.
93      */
getAvailability()94     @Availability public int getAvailability() {
95         if (mIsDeviceSupported) {
96             return Availability.AVAILABLE;
97         }
98         return Availability.DISABLED_UNSUPPORTED;
99     }
100 
101     /**
102      * Checks if the input is valid for the given setting.
103      *
104      * @param input The number to be get or set for the setting.
105      * @return {@param input} mapped to the public-facing API for settings.
106      * @throws IllegalArgumentException when the input is not valid for the given inline type.
107      */
standardizeInput(int input)108     protected abstract int standardizeInput(int input) throws IllegalArgumentException;
109 
110     /**
111      * @returns the current value of the setting.
112      */
getValue(Context context)113     public int getValue(Context context) {
114         int settingsValue = -1;
115         switch(mSettingSource) {
116             case SettingsSource.SECURE:
117                 settingsValue = Settings.Secure.getInt(context.getContentResolver(),
118                         mSettingKey, mDefaultvalue);
119                 break;
120             case SettingsSource.SYSTEM:
121                 settingsValue = Settings.System.getInt(context.getContentResolver(),
122                         mSettingKey, mDefaultvalue);
123                 break;
124 
125             case SettingsSource.GLOBAL:
126                 settingsValue = Settings.Global.getInt(context.getContentResolver(),
127                         mSettingKey, mDefaultvalue);
128                 break;
129         }
130 
131         return standardizeInput(settingsValue);
132     }
133 
134     /**
135      * Attempts to set the setting value.
136      *
137      * @param newValue is the requested value for the setting.
138      * @returns true when the setting was changed, and false otherwise.
139      */
setValue(Context context, int newValue)140     public boolean setValue(Context context, int newValue) {
141         newValue = standardizeInput(newValue);
142 
143         switch(mSettingSource) {
144             case SettingsSource.GLOBAL:
145                 return Settings.Global.putInt(context.getContentResolver(), mSettingKey, newValue);
146             case SettingsSource.SECURE:
147                 return Settings.Secure.putInt(context.getContentResolver(), mSettingKey, newValue);
148             case SettingsSource.SYSTEM:
149                 return Settings.System.putInt(context.getContentResolver(), mSettingKey, newValue);
150             case SettingsSource.UNKNOWN:
151                 return false;
152         }
153 
154         return false;
155     }
156 
getKey()157     public String getKey() {
158         return mSettingKey;
159     }
160 }