1/*
2 * Copyright (C) 2010 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.camerabrowser;
18
19import android.app.ListActivity;
20import android.content.Context;
21import android.content.Intent;
22import android.database.Cursor;
23import android.graphics.Bitmap;
24import android.graphics.BitmapFactory;
25import android.mtp.MtpConstants;
26import android.mtp.MtpDevice;
27import android.mtp.MtpObjectInfo;
28import android.os.Bundle;
29import android.util.Log;
30import android.view.LayoutInflater;
31import android.view.View;
32import android.view.ViewGroup;
33import android.widget.BaseAdapter;
34import android.widget.ImageView;
35import android.widget.ListView;
36import android.widget.TextView;
37
38import java.util.List;
39
40 /**
41 * A list view displaying all objects within a container (folder or storage unit).
42 */
43public class ObjectBrowser extends ListActivity {
44
45    private static final String TAG = "ObjectBrowser";
46
47    private MtpClient mClient;
48    private List<MtpObjectInfo> mObjectList;
49    private String mDeviceName;
50    private int mStorageID;
51    private int mObjectID;
52    private DeviceDisconnectedReceiver mDisconnectedReceiver;
53
54    private class ObjectAdapter extends BaseAdapter {
55        private final Context mContext;
56        private final LayoutInflater mInflater;
57
58        public ObjectAdapter(Context c) {
59            mContext = c;
60            mInflater = (LayoutInflater)c.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
61        }
62
63        public int getCount() {
64            if (mObjectList == null) {
65                return 0;
66            } else {
67                return mObjectList.size();
68            }
69        }
70
71        public Object getItem(int position) {
72            return mObjectList.get(position);
73        }
74
75        public long getItemId(int position) {
76            return position;
77        }
78
79        public View getView(int position, View convertView, ViewGroup parent) {
80            View view;
81            if (convertView == null) {
82                view = mInflater.inflate(R.layout.object_list, parent, false);
83            } else {
84                view = convertView;
85            }
86
87            TextView nameView = (TextView)view.findViewById(R.id.name);
88            MtpObjectInfo info = mObjectList.get(position);
89            nameView.setText(info.getName());
90
91            int thumbFormat = info.getThumbFormat();
92            if (thumbFormat == MtpConstants.FORMAT_EXIF_JPEG
93                    || thumbFormat == MtpConstants.FORMAT_JFIF) {
94                byte[] thumbnail = mClient.getThumbnail(mDeviceName, info.getObjectHandle());
95                if (thumbnail != null) {
96                    Bitmap bitmap = BitmapFactory.decodeByteArray(thumbnail, 0, thumbnail.length);
97                    if (bitmap != null) {
98                        ImageView thumbView = (ImageView)view.findViewById(R.id.thumbnail);
99                        thumbView.setImageBitmap(bitmap);
100                    }
101                }
102            }
103            return view;
104        }
105    }
106
107    @Override
108    protected void onCreate(Bundle savedInstanceState) {
109        super.onCreate(savedInstanceState);
110
111        mClient = ((CameraBrowserApplication)getApplication()).getMtpClient();
112        mDeviceName = getIntent().getStringExtra("device");
113        mStorageID = getIntent().getIntExtra("storage", 0);
114        mObjectID = getIntent().getIntExtra("object", 0);
115        mDisconnectedReceiver = new DeviceDisconnectedReceiver(this, mDeviceName);
116    }
117
118    @Override
119    protected void onResume() {
120        super.onResume();
121
122        mObjectList = mClient.getObjectList(mDeviceName, mStorageID, mObjectID);
123        setListAdapter(new ObjectAdapter(this));
124    }
125
126    @Override
127    protected void onDestroy() {
128        unregisterReceiver(mDisconnectedReceiver);
129        super.onDestroy();
130    }
131
132    @Override
133    protected void onListItemClick(ListView l, View v, int position, long id) {
134        MtpObjectInfo info = mObjectList.get(position);
135        Intent intent;
136        if (info.getFormat() == MtpConstants.FORMAT_ASSOCIATION) {
137            intent = new Intent(this, ObjectBrowser.class);
138        } else {
139            intent = new Intent(this, ObjectViewer.class);
140        }
141        intent.putExtra("device", mDeviceName);
142        intent.putExtra("storage", mStorageID);
143        intent.putExtra("object", info.getObjectHandle());
144        startActivity(intent);
145    }
146}
147