ObjectViewer.java revision f1f5361e328c13be80e3760d8cc2170d70c9d0ba 
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
16package com.android.camerabrowser;
17
18import android.app.Activity;
19import android.content.Intent;
20import android.database.Cursor;
21import android.graphics.Bitmap;
22import android.graphics.BitmapFactory;
23import android.net.Uri;
24import android.os.Bundle;
25import android.os.Environment;
26import android.os.FileUtils;
27import android.os.ParcelFileDescriptor;
28import android.os.Process;
29import android.provider.Mtp;
30import android.util.Log;
31import android.view.Menu;
32import android.view.MenuInflater;
33import android.view.MenuItem;
34import android.view.View;
35import android.widget.ImageView;
36import android.widget.TextView;
37import android.widget.Toast;
38
39import java.io.File;
40import java.io.FileDescriptor;
41import java.io.FileInputStream;
42import java.io.FileOutputStream;
43import java.util.Calendar;
44import java.util.Date;
45
46/**
47 * A view to display the properties of an object.
48 */
49public class ObjectViewer extends Activity {
50
51    private static final String TAG = "ObjectViewer";
52
53    private int mDeviceID;
54    private long mStorageID;
55    private long mObjectID;
56
57    private static final String[] OBJECT_COLUMNS =
58        new String[] {  Mtp.Object._ID,
59                        Mtp.Object.NAME,
60                        Mtp.Object.SIZE,
61                        Mtp.Object.THUMB_WIDTH,
62                        Mtp.Object.THUMB_HEIGHT,
63                        Mtp.Object.THUMB_SIZE,
64                        Mtp.Object.IMAGE_WIDTH,
65                        Mtp.Object.IMAGE_HEIGHT,
66                        Mtp.Object.IMAGE_DEPTH,
67                        Mtp.Object.SEQUENCE_NUMBER,
68                        Mtp.Object.DATE_CREATED,
69                        Mtp.Object.DATE_MODIFIED,
70                        Mtp.Object.KEYWORDS,
71                        Mtp.Object.THUMB,
72                        Mtp.Object.FORMAT,
73                        };
74
75    @Override
76    protected void onCreate(Bundle savedInstanceState) {
77        super.onCreate(savedInstanceState);
78
79        setContentView(R.layout.object_info);
80    }
81
82    @Override
83    protected void onResume() {
84        super.onResume();
85
86        mDeviceID = getIntent().getIntExtra("device", 0);
87        mStorageID = getIntent().getLongExtra("storage", 0);
88        mObjectID = getIntent().getLongExtra("object", 0);
89
90        if (mDeviceID != 0 && mObjectID != 0) {
91        Cursor c = getContentResolver().query(
92                        Mtp.Object.getContentUri(mDeviceID, mObjectID),
93                        OBJECT_COLUMNS, null, null, null);
94            c.moveToFirst();
95            TextView view = (TextView)findViewById(R.id.name);
96            view.setText(c.getString(1));
97            view = (TextView)findViewById(R.id.size);
98            view.setText(Long.toString(c.getLong(2)));
99            view = (TextView)findViewById(R.id.thumb_width);
100            view.setText(Long.toString(c.getLong(3)));
101            view = (TextView)findViewById(R.id.thumb_height);
102            view.setText(Long.toString(c.getLong(4)));
103            view = (TextView)findViewById(R.id.thumb_size);
104            view.setText(Long.toString(c.getLong(5)));
105            view = (TextView)findViewById(R.id.width);
106            view.setText(Long.toString(c.getLong(6)));
107            view = (TextView)findViewById(R.id.height);
108            view.setText(Long.toString(c.getLong(7)));
109            view = (TextView)findViewById(R.id.depth);
110            view.setText(Long.toString(c.getLong(8)));
111            view = (TextView)findViewById(R.id.sequence);
112            view.setText(Long.toString(c.getLong(9)));
113            view = (TextView)findViewById(R.id.created);
114            Date date = new Date(c.getLong(10) * 1000);
115            view.setText(date.toString());
116            view = (TextView)findViewById(R.id.modified);
117            date = new Date(c.getLong(11) * 1000);
118            view.setText(date.toString());
119            view = (TextView)findViewById(R.id.keywords);
120            view.setText(c.getString(12));
121            byte[] thumbnail = c.getBlob(13);
122            if (thumbnail != null) {
123                ImageView thumbView = (ImageView)findViewById(R.id.thumbnail);
124                Bitmap bitmap = BitmapFactory.decodeByteArray(thumbnail, 0, thumbnail.length);
125                if (bitmap != null) {
126                    thumbView.setImageBitmap(bitmap);
127                }
128            }
129            view = (TextView)findViewById(R.id.format);
130            view.setText(Long.toHexString(c.getLong(14)).toUpperCase());
131        }
132    }
133
134    @Override
135    public boolean onCreateOptionsMenu(Menu menu) {
136        MenuInflater inflater = getMenuInflater();
137        inflater.inflate(R.menu.object_menu, menu);
138        return true;
139    }
140
141    @Override
142    public boolean onPrepareOptionsMenu(Menu menu) {
143        MenuItem item = menu.findItem(R.id.save);
144        item.setEnabled(true);
145        item = menu.findItem(R.id.delete);
146        item.setEnabled(true);
147        return true;
148    }
149
150    @Override
151    public boolean onOptionsItemSelected(MenuItem item) {
152        switch (item.getItemId()) {
153            case R.id.save:
154                save();
155                return true;
156            case R.id.delete:
157                delete();
158                return true;
159        }
160        return false;
161    }
162
163    private static String getTimestamp() {
164        Calendar c = Calendar.getInstance();
165        c.setTimeInMillis(System.currentTimeMillis());
166        return String.format("%tY-%tm-%td-%tH-%tM-%tS", c, c, c, c, c, c);
167    }
168
169    private void save() {
170        boolean success = false;
171        Uri uri = Mtp.Object.getContentUri(mDeviceID, mObjectID);
172        File destFile = null;
173        ParcelFileDescriptor pfd = null;
174        FileInputStream fis = null;
175        FileOutputStream fos = null;
176
177        try {
178            pfd = getContentResolver().openFileDescriptor(uri, "r");
179            Log.d(TAG, "save got pfd " + pfd);
180            if (pfd != null) {
181                fis = new FileInputStream(pfd.getFileDescriptor());
182                Log.d(TAG, "save got fis " + fis);
183                File destDir = Environment.getExternalStoragePublicDirectory(
184                        Environment.DIRECTORY_DCIM);
185                destDir.mkdirs();
186                destFile = new File(destDir, "CameraBrowser-" + getTimestamp() + ".jpeg");
187
188
189                Log.d(TAG, "save got destFile " + destFile);
190
191                if (destFile.exists()) {
192                    destFile.delete();
193                }
194                fos = new FileOutputStream(destFile);
195
196                byte[] buffer = new byte[65536];
197                int bytesRead;
198                while ((bytesRead = fis.read(buffer)) >= 0) {
199                    fos.write(buffer, 0, bytesRead);
200                }
201
202                // temporary workaround until we straighten out permissions in /data/media
203                // 1015 is AID_SDCARD_RW
204                FileUtils.setPermissions(destDir.getPath(), 0775, Process.myUid(), 1015);
205                FileUtils.setPermissions(destFile.getPath(), 0664, Process.myUid(), 1015);
206
207                success = true;
208            }
209        } catch (Exception e) {
210            Log.e(TAG, "Exception in ObjectView.save", e);
211        } finally {
212            if (fis != null) {
213                try {
214                    fis.close();
215                } catch (Exception e) {
216                }
217            }
218            if (fos != null) {
219                try {
220                    fos.close();
221                } catch (Exception e) {
222                }
223            }
224            if (pfd != null) {
225                try {
226                    pfd.close();
227                } catch (Exception e) {
228                }
229            }
230        }
231
232        if (success) {
233            Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
234            intent.setData(Uri.fromFile(destFile));
235            sendBroadcast(intent);
236            Toast.makeText(this, R.string.object_saved_message, Toast.LENGTH_SHORT).show();
237        } else {
238            Toast.makeText(this, R.string.save_failed_message, Toast.LENGTH_SHORT).show();
239        }
240    }
241
242    private void delete() {
243        Uri uri = Mtp.Object.getContentUri(mDeviceID, mObjectID);
244
245        Log.d(TAG, "deleting " + uri);
246
247        int result = getContentResolver().delete(uri, null, null);
248        if (result > 0) {
249            Toast.makeText(this, R.string.object_deleted_message, Toast.LENGTH_SHORT).show();
250            finish();
251        } else {
252            Toast.makeText(this, R.string.delete_failed_message, Toast.LENGTH_SHORT).show();
253        }
254    }
255}
256