1 /*
2  * Copyright (C) 2010 The Android Open Source Project
3  * * Licensed under the Apache License, Version 2.0 (the "License");
4  * you may not use this file except in compliance with the License.
5  * You may obtain a copy of the License at
6  *
7  *      http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software
10  * distributed under the License is distributed on an "AS IS" BASIS,
11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  * See the License for the specific language governing permissions and
13  * limitations under the License.
14  */
15 
16 package com.android.camerabrowser;
17 
18 import android.app.Activity;
19 import android.content.ActivityNotFoundException;
20 import android.content.Context;
21 import android.content.Intent;
22 import android.graphics.Bitmap;
23 import android.graphics.BitmapFactory;
24 import android.media.MediaScannerConnection;
25 import android.media.MediaScannerConnection.MediaScannerConnectionClient;
26 import android.mtp.MtpConstants;
27 import android.mtp.MtpObjectInfo;
28 import android.net.Uri;
29 import android.os.Bundle;
30 import android.os.Environment;
31 import android.util.Log;
32 import android.view.View;
33 import android.widget.Button;
34 import android.widget.ImageView;
35 import android.widget.TextView;
36 import android.widget.Toast;
37 
38 import java.io.File;
39 import java.util.Date;
40 import java.util.Locale;
41 
42 /**
43  * A view to display the properties of an object.
44  */
45 public class ObjectViewer extends Activity implements View.OnClickListener {
46 
47     private static final String TAG = "ObjectViewer";
48 
49     private MtpClient mClient;
50     private String mDeviceName;
51     private int mStorageID;
52     private int mObjectID;
53     private String mFileName;
54     private Button mImportButton;
55     private Button mDeleteButton;
56     private DeviceDisconnectedReceiver mDisconnectedReceiver;
57 
58     private final class ScannerClient implements MediaScannerConnectionClient {
59         private final Context mContext;
60         private String mPath;
61 
ScannerClient(Context context)62         public ScannerClient(Context context) {
63             mContext = context;
64         }
65 
setScanPath(String path)66         public void setScanPath(String path) {
67             mPath = path;
68         }
69 
70         @Override
onMediaScannerConnected()71         public void onMediaScannerConnected() {
72             mScannerConnection.scanFile(mPath, null);
73         }
74 
75         @Override
onScanCompleted(String path, Uri uri)76         public void onScanCompleted(String path, Uri uri) {
77             mScannerConnection.disconnect();
78 
79             // try to start an activity to view the file
80             Intent intent = new Intent(Intent.ACTION_VIEW, uri);
81             try {
82                 mContext.startActivity(intent);
83             } catch (ActivityNotFoundException e) {
84                 Toast.makeText(mContext, R.string.start_activity_failed_message,
85                         Toast.LENGTH_SHORT).show();
86             }
87         }
88     }
89 
90     private MediaScannerConnection mScannerConnection;
91     private ScannerClient mScannerClient;
92 
93     @Override
onCreate(Bundle savedInstanceState)94     protected void onCreate(Bundle savedInstanceState) {
95         super.onCreate(savedInstanceState);
96 
97         mClient = ((CameraBrowserApplication)getApplication()).getMtpClient();
98 
99         setContentView(R.layout.object_info);
100 
101         mImportButton = (Button)findViewById(R.id.import_button);
102         mImportButton.setOnClickListener(this);
103         mDeleteButton = (Button)findViewById(R.id.delete_button);
104         mDeleteButton.setOnClickListener(this);
105 
106         mDeviceName = getIntent().getStringExtra("device");
107         mStorageID = getIntent().getIntExtra("storage", 0);
108         mObjectID = getIntent().getIntExtra("object", 0);
109         mDisconnectedReceiver = new DeviceDisconnectedReceiver(this, mDeviceName);
110         mScannerClient = new ScannerClient(this);
111         mScannerConnection = new MediaScannerConnection(this, mScannerClient);
112     }
113 
114     @Override
onResume()115     protected void onResume() {
116         super.onResume();
117 
118         MtpObjectInfo info = mClient.getObjectInfo(mDeviceName, mObjectID);
119         if (info != null) {
120             TextView view = (TextView)findViewById(R.id.name);
121             mFileName = info.getName();
122             view.setText(mFileName);
123             view = (TextView)findViewById(R.id.format);
124             view.setText(Integer.toHexString(info.getFormat()).toUpperCase(Locale.ROOT));
125             view = (TextView)findViewById(R.id.size);
126             view.setText(Long.toString(info.getCompressedSize()));
127             view = (TextView)findViewById(R.id.thumb_width);
128             view.setText(Long.toString(info.getThumbPixWidth()));
129             view = (TextView)findViewById(R.id.thumb_height);
130             view.setText(Long.toString(info.getThumbPixHeight()));
131             view = (TextView)findViewById(R.id.thumb_size);
132             view.setText(Long.toString(info.getThumbCompressedSize()));
133             view = (TextView)findViewById(R.id.width);
134             view.setText(Long.toString(info.getImagePixWidth()));
135             view = (TextView)findViewById(R.id.height);
136             view.setText(Long.toString(info.getImagePixHeight()));
137             view = (TextView)findViewById(R.id.depth);
138             view.setText(Long.toString(info.getImagePixDepth()));
139             view = (TextView)findViewById(R.id.sequence);
140             view.setText(Long.toString(info.getSequenceNumber()));
141             view = (TextView)findViewById(R.id.created);
142             Date date = new Date(info.getDateCreated() * 1000);
143             view.setText(date.toString());
144             view = (TextView)findViewById(R.id.modified);
145             date = new Date(info.getDateModified() * 1000);
146             view.setText(date.toString());
147             view = (TextView)findViewById(R.id.keywords);
148             view.setText(info.getKeywords());
149             int thumbFormat = info.getThumbFormat();
150             if (thumbFormat == MtpConstants.FORMAT_EXIF_JPEG
151                     || thumbFormat == MtpConstants.FORMAT_JFIF) {
152                 byte[] thumbnail = mClient.getThumbnail(mDeviceName, info.getObjectHandle());
153                 if (thumbnail != null) {
154                     Bitmap bitmap = BitmapFactory.decodeByteArray(thumbnail, 0, thumbnail.length);
155                     if (bitmap != null) {
156                         ImageView thumbView = (ImageView)findViewById(R.id.thumbnail);
157                         thumbView.setImageBitmap(bitmap);
158                     }
159                 }
160             }
161         }
162     }
163 
164     @Override
onDestroy()165     protected void onDestroy() {
166         unregisterReceiver(mDisconnectedReceiver);
167         super.onDestroy();
168     }
169 
importObject()170     private void importObject() {
171         // copy file to /mnt/sdcard/imported/<filename>
172         File dest = Environment.getExternalStorageDirectory();
173         dest = new File(dest, "imported");
174         dest.mkdirs();
175         dest = new File(dest, mFileName);
176 
177         if (mClient.importFile(mDeviceName, mObjectID, dest.getAbsolutePath())) {
178             Toast.makeText(this, R.string.object_saved_message, Toast.LENGTH_SHORT).show();
179 
180             mScannerClient.setScanPath(dest.getAbsolutePath());
181             mScannerConnection.connect();
182         } else {
183             Toast.makeText(this, R.string.save_failed_message, Toast.LENGTH_SHORT).show();
184         }
185     }
186 
deleteObject()187     private void deleteObject() {
188         if (mClient.deleteObject(mDeviceName, mObjectID)) {
189             Toast.makeText(this, R.string.object_deleted_message, Toast.LENGTH_SHORT).show();
190             finish();
191         } else {
192             Toast.makeText(this, R.string.delete_failed_message, Toast.LENGTH_SHORT).show();
193         }
194     }
195 
onClick(View v)196     public void onClick(View v) {
197         if (v == mImportButton) {
198             importObject();
199         } else if (v == mDeleteButton) {
200             deleteObject();
201         }
202     }
203 }
204