1 package com.android.launcher3.util;
2 
3 /**
4  * Copyright (C) 2016 The Android Open Source Project
5  *
6  * Licensed under the Apache License, Version 2.0 (the "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at
9  *
10  *      http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18 
19 import android.content.ContentValues;
20 import android.content.Context;
21 import android.content.Intent;
22 import android.os.UserHandle;
23 
24 import com.android.launcher3.LauncherAppState;
25 import com.android.launcher3.LauncherSettings;
26 import com.android.launcher3.LauncherSettings.Favorites;
27 import com.android.launcher3.icons.BitmapInfo;
28 import com.android.launcher3.icons.GraphicsUtils;
29 import com.android.launcher3.model.ModelDbController;
30 import com.android.launcher3.pm.UserCache;
31 
32 /**
33  * A wrapper around {@link ContentValues} with some utility methods.
34  */
35 public class ContentWriter {
36 
37     private final ContentValues mValues;
38     private final Context mContext;
39 
40     private CommitParams mCommitParams;
41     private BitmapInfo mIcon;
42     private UserHandle mUser;
43 
ContentWriter(Context context, CommitParams commitParams)44     public ContentWriter(Context context, CommitParams commitParams) {
45         this(context);
46         mCommitParams = commitParams;
47     }
48 
ContentWriter(Context context)49     public ContentWriter(Context context) {
50         this(new ContentValues(), context);
51     }
52 
ContentWriter(ContentValues values, Context context)53     public ContentWriter(ContentValues values, Context context) {
54         mValues = values;
55         mContext = context;
56     }
57 
put(String key, Integer value)58     public ContentWriter put(String key, Integer value) {
59         mValues.put(key, value);
60         return this;
61     }
62 
put(String key, Long value)63     public ContentWriter put(String key, Long value) {
64         mValues.put(key, value);
65         return this;
66     }
67 
put(String key, String value)68     public ContentWriter put(String key, String value) {
69         mValues.put(key, value);
70         return this;
71     }
72 
put(String key, CharSequence value)73     public ContentWriter put(String key, CharSequence value) {
74         mValues.put(key, value == null ? null : value.toString());
75         return this;
76     }
77 
put(String key, Intent value)78     public ContentWriter put(String key, Intent value) {
79         mValues.put(key, value == null ? null : value.toUri(0));
80         return this;
81     }
82 
putIcon(BitmapInfo value, UserHandle user)83     public ContentWriter putIcon(BitmapInfo value, UserHandle user) {
84         mIcon = value;
85         mUser = user;
86         return this;
87     }
88 
put(String key, UserHandle user)89     public ContentWriter put(String key, UserHandle user) {
90         return put(key, UserCache.INSTANCE.get(mContext).getSerialNumberForUser(user));
91     }
92 
93     /**
94      * Commits any pending validation and returns the final values.
95      * Must not be called on UI thread.
96      */
getValues(Context context)97     public ContentValues getValues(Context context) {
98         Preconditions.assertNonUiThread();
99         if (mIcon != null && !LauncherAppState.getInstance(context).getIconCache()
100                 .isDefaultIcon(mIcon, mUser)) {
101             mValues.put(LauncherSettings.Favorites.ICON, GraphicsUtils.flattenBitmap(mIcon.icon));
102             mIcon = null;
103         }
104         return mValues;
105     }
106 
commit()107     public int commit() {
108         if (mCommitParams != null) {
109             return mCommitParams.mDbController.update(
110                     Favorites.TABLE_NAME, getValues(mContext),
111                     mCommitParams.mWhere, mCommitParams.mSelectionArgs);
112         }
113         return 0;
114     }
115 
116     public static final class CommitParams {
117 
118         final ModelDbController mDbController;
119         final String mWhere;
120         final String[] mSelectionArgs;
121 
CommitParams(ModelDbController controller, String where, String[] selectionArgs)122         public CommitParams(ModelDbController controller, String where, String[] selectionArgs) {
123             mDbController = controller;
124             mWhere = where;
125             mSelectionArgs = selectionArgs;
126         }
127     }
128 }
129