BridgeContentResolver.java revision c2e9651bf386a1f7bf7fc706cf5424950570470c 
1/*
2 * Copyright (C) 2009 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
17package com.android.layoutlib.bridge.android;
18
19import android.content.ContentResolver;
20import android.content.Context;
21import android.content.IContentProvider;
22import android.database.ContentObserver;
23import android.net.Uri;
24import android.os.Bundle;
25
26/**
27 * A mock content resolver for the LayoutLib Bridge.
28 * <p/>
29 * It won't serve any actual data but it's good enough for all
30 * the widgets which expect to have a content resolver available via
31 * {@link BridgeContext#getContentResolver()}.
32 */
33public class BridgeContentResolver extends ContentResolver {
34
35    private BridgeContentProvider mProvider = null;
36
37    public BridgeContentResolver(Context context) {
38        super(context);
39    }
40
41    @Override
42    public IContentProvider acquireProvider(Context c, String name) {
43        if (mProvider == null) {
44            mProvider = new BridgeContentProvider();
45        }
46
47        return mProvider;
48    }
49
50    @Override
51    public IContentProvider acquireExistingProvider(Context c, String name) {
52        if (mProvider == null) {
53            mProvider = new BridgeContentProvider();
54        }
55
56        return mProvider;
57    }
58
59    @Override
60    public boolean releaseProvider(IContentProvider icp) {
61        // ignore
62        return false;
63    }
64
65    /**
66     * Stub for the layoutlib bridge content resolver.
67     */
68    @Override
69    public void registerContentObserver(Uri uri, boolean notifyForDescendents,
70            ContentObserver observer) {
71        // pass
72    }
73
74    /**
75     * Stub for the layoutlib bridge content resolver.
76     */
77    @Override
78    public void unregisterContentObserver(ContentObserver observer) {
79        // pass
80    }
81
82    /**
83     * Stub for the layoutlib bridge content resolver.
84     */
85    @Override
86    public void notifyChange(Uri uri, ContentObserver observer, boolean syncToNetwork) {
87        // pass
88    }
89
90    /**
91     * Stub for the layoutlib bridge content resolver.
92     */
93    @Override
94    public void startSync(Uri uri, Bundle extras) {
95        // pass
96    }
97
98    /**
99     * Stub for the layoutlib bridge content resolver.
100     */
101    @Override
102    public void cancelSync(Uri uri) {
103        // pass
104    }
105}
106