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      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 
     41 /**
     42  * A view to display the properties of an object.
     43  */
     44 public class ObjectViewer extends Activity implements View.OnClickListener {
     45 
     46     private static final String TAG = "ObjectViewer";
     47 
     48     private MtpClient mClient;
     49     private String mDeviceName;
     50     private int mStorageID;
     51     private int mObjectID;
     52     private String mFileName;
     53     private Button mImportButton;
     54     private Button mDeleteButton;
     55     private DeviceDisconnectedReceiver mDisconnectedReceiver;
     56 
     57     private final class ScannerClient implements MediaScannerConnectionClient {
     58         private final Context mContext;
     59         private String mPath;
     60 
     61         public ScannerClient(Context context) {
     62             mContext = context;
     63         }
     64 
     65         public void setScanPath(String path) {
     66             mPath = path;
     67         }
     68 
     69         @Override
     70         public void onMediaScannerConnected() {
     71             mScannerConnection.scanFile(mPath, null);
     72         }
     73 
     74         @Override
     75         public void onScanCompleted(String path, Uri uri) {
     76             mScannerConnection.disconnect();
     77 
     78             // try to start an activity to view the file
     79             Intent intent = new Intent(Intent.ACTION_VIEW, uri);
     80             try {
     81                 mContext.startActivity(intent);
     82             } catch (ActivityNotFoundException e) {
     83                 Toast.makeText(mContext, R.string.start_activity_failed_message,
     84                         Toast.LENGTH_SHORT).show();
     85             }
     86         }
     87     }
     88 
     89     private MediaScannerConnection mScannerConnection;
     90     private ScannerClient mScannerClient;
     91 
     92     @Override
     93     protected void onCreate(Bundle savedInstanceState) {
     94         super.onCreate(savedInstanceState);
     95 
     96         mClient = ((CameraBrowserApplication)getApplication()).getMtpClient();
     97 
     98         setContentView(R.layout.object_info);
     99 
    100         mImportButton = (Button)findViewById(R.id.import_button);
    101         mImportButton.setOnClickListener(this);
    102         mDeleteButton = (Button)findViewById(R.id.delete_button);
    103         mDeleteButton.setOnClickListener(this);
    104 
    105         mDeviceName = getIntent().getStringExtra("device");
    106         mStorageID = getIntent().getIntExtra("storage", 0);
    107         mObjectID = getIntent().getIntExtra("object", 0);
    108         mDisconnectedReceiver = new DeviceDisconnectedReceiver(this, mDeviceName);
    109         mScannerClient = new ScannerClient(this);
    110         mScannerConnection = new MediaScannerConnection(this, mScannerClient);
    111     }
    112 
    113     @Override
    114     protected void onResume() {
    115         super.onResume();
    116 
    117         MtpObjectInfo info = mClient.getObjectInfo(mDeviceName, mObjectID);
    118         if (info != null) {
    119             TextView view = (TextView)findViewById(R.id.name);
    120             mFileName = info.getName();
    121             view.setText(mFileName);
    122             view = (TextView)findViewById(R.id.format);
    123             view.setText(Integer.toHexString(info.getFormat()).toUpperCase());
    124             view = (TextView)findViewById(R.id.size);
    125             view.setText(Long.toString(info.getCompressedSize()));
    126             view = (TextView)findViewById(R.id.thumb_width);
    127             view.setText(Long.toString(info.getThumbPixWidth()));
    128             view = (TextView)findViewById(R.id.thumb_height);
    129             view.setText(Long.toString(info.getThumbPixHeight()));
    130             view = (TextView)findViewById(R.id.thumb_size);
    131             view.setText(Long.toString(info.getThumbCompressedSize()));
    132             view = (TextView)findViewById(R.id.width);
    133             view.setText(Long.toString(info.getImagePixWidth()));
    134             view = (TextView)findViewById(R.id.height);
    135             view.setText(Long.toString(info.getImagePixHeight()));
    136             view = (TextView)findViewById(R.id.depth);
    137             view.setText(Long.toString(info.getImagePixDepth()));
    138             view = (TextView)findViewById(R.id.sequence);
    139             view.setText(Long.toString(info.getSequenceNumber()));
    140             view = (TextView)findViewById(R.id.created);
    141             Date date = new Date(info.getDateCreated() * 1000);
    142             view.setText(date.toString());
    143             view = (TextView)findViewById(R.id.modified);
    144             date = new Date(info.getDateModified() * 1000);
    145             view.setText(date.toString());
    146             view = (TextView)findViewById(R.id.keywords);
    147             view.setText(info.getKeywords());
    148             int thumbFormat = info.getThumbFormat();
    149             if (thumbFormat == MtpConstants.FORMAT_EXIF_JPEG
    150                     || thumbFormat == MtpConstants.FORMAT_JFIF) {
    151                 byte[] thumbnail = mClient.getThumbnail(mDeviceName, info.getObjectHandle());
    152                 if (thumbnail != null) {
    153                     Bitmap bitmap = BitmapFactory.decodeByteArray(thumbnail, 0, thumbnail.length);
    154                     if (bitmap != null) {
    155                         ImageView thumbView = (ImageView)findViewById(R.id.thumbnail);
    156                         thumbView.setImageBitmap(bitmap);
    157                     }
    158                 }
    159             }
    160         }
    161     }
    162 
    163     @Override
    164     protected void onDestroy() {
    165         unregisterReceiver(mDisconnectedReceiver);
    166         super.onDestroy();
    167     }
    168 
    169     private void importObject() {
    170         // copy file to /mnt/sdcard/imported/<filename>
    171         File dest = Environment.getExternalStorageDirectory();
    172         dest = new File(dest, "imported");
    173         dest.mkdirs();
    174         dest = new File(dest, mFileName);
    175 
    176         if (mClient.importFile(mDeviceName, mObjectID, dest.getAbsolutePath())) {
    177             Toast.makeText(this, R.string.object_saved_message, Toast.LENGTH_SHORT).show();
    178 
    179             mScannerClient.setScanPath(dest.getAbsolutePath());
    180             mScannerConnection.connect();
    181         } else {
    182             Toast.makeText(this, R.string.save_failed_message, Toast.LENGTH_SHORT).show();
    183         }
    184     }
    185 
    186     private void deleteObject() {
    187         if (mClient.deleteObject(mDeviceName, mObjectID)) {
    188             Toast.makeText(this, R.string.object_deleted_message, Toast.LENGTH_SHORT).show();
    189             finish();
    190         } else {
    191             Toast.makeText(this, R.string.delete_failed_message, Toast.LENGTH_SHORT).show();
    192         }
    193     }
    194 
    195     public void onClick(View v) {
    196         if (v == mImportButton) {
    197             importObject();
    198         } else if (v == mDeleteButton) {
    199             deleteObject();
    200         }
    201     }
    202 }
    203