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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.graphics.Bitmap;
23 import android.net.Uri;
24 import android.os.UserHandle;
25 
26 import com.android.launcher3.LauncherAppState;
27 import com.android.launcher3.LauncherSettings;
28 import com.android.launcher3.compat.UserManagerCompat;
29 import com.android.launcher3.icons.GraphicsUtils;
30 
31 /**
32  * A wrapper around {@link ContentValues} with some utility methods.
33  */
34 public class ContentWriter {
35 
36     private final ContentValues mValues;
37     private final Context mContext;
38 
39     private CommitParams mCommitParams;
40     private Bitmap mIcon;
41     private UserHandle mUser;
42 
ContentWriter(Context context, CommitParams commitParams)43     public ContentWriter(Context context, CommitParams commitParams) {
44         this(context);
45         mCommitParams = commitParams;
46     }
47 
ContentWriter(Context context)48     public ContentWriter(Context context) {
49         this(new ContentValues(), context);
50     }
51 
ContentWriter(ContentValues values, Context context)52     public ContentWriter(ContentValues values, Context context) {
53         mValues = values;
54         mContext = context;
55     }
56 
put(String key, Integer value)57     public ContentWriter put(String key, Integer value) {
58         mValues.put(key, value);
59         return this;
60     }
61 
put(String key, Long value)62     public ContentWriter put(String key, Long value) {
63         mValues.put(key, value);
64         return this;
65     }
66 
put(String key, String value)67     public ContentWriter put(String key, String value) {
68         mValues.put(key, value);
69         return this;
70     }
71 
put(String key, CharSequence value)72     public ContentWriter put(String key, CharSequence value) {
73         mValues.put(key, value == null ? null : value.toString());
74         return this;
75     }
76 
put(String key, Intent value)77     public ContentWriter put(String key, Intent value) {
78         mValues.put(key, value == null ? null : value.toUri(0));
79         return this;
80     }
81 
putIcon(Bitmap value, UserHandle user)82     public ContentWriter putIcon(Bitmap value, UserHandle user) {
83         mIcon = value;
84         mUser = user;
85         return this;
86     }
87 
put(String key, UserHandle user)88     public ContentWriter put(String key, UserHandle user) {
89         return put(key, UserManagerCompat.getInstance(mContext).getSerialNumberForUser(user));
90     }
91 
92     /**
93      * Commits any pending validation and returns the final values.
94      * Must not be called on UI thread.
95      */
getValues(Context context)96     public ContentValues getValues(Context context) {
97         Preconditions.assertNonUiThread();
98         if (mIcon != null && !LauncherAppState.getInstance(context).getIconCache()
99                 .isDefaultIcon(mIcon, mUser)) {
100             mValues.put(LauncherSettings.Favorites.ICON, GraphicsUtils.flattenBitmap(mIcon));
101             mIcon = null;
102         }
103         return mValues;
104     }
105 
commit()106     public int commit() {
107         if (mCommitParams != null) {
108             return mContext.getContentResolver().update(mCommitParams.mUri, getValues(mContext),
109                     mCommitParams.mWhere, mCommitParams.mSelectionArgs);
110         }
111         return 0;
112     }
113 
114     public static final class CommitParams {
115 
116         final Uri mUri = LauncherSettings.Favorites.CONTENT_URI;
117         String mWhere;
118         String[] mSelectionArgs;
119 
CommitParams(String where, String[] selectionArgs)120         public CommitParams(String where, String[] selectionArgs) {
121             mWhere = where;
122             mSelectionArgs = selectionArgs;
123         }
124 
125     }
126 }
127