package com.lamerman;
import java.io.File;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Stack;
import java.util.TreeMap;
import android.app.AlertDialog;
import android.app.ListActivity;
import android.content.Context;
import android.content.DialogInterface;
import android.graphics.Color;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.ListView;
import android.widget.SimpleAdapter;
import android.widget.TextView;
import android.widget.Toast;
import com.geek_alarm.android.R;
public class FileDialog extends ListActivity {
private static final String ITEM_KEY = "key";
private static final String ITEM_IMAGE = "image";
public static final String START_URI = "START_URI";
public static final String RESULT_URI = "RESULT_URI";
private List<String> item = null;
private List<String> path = null;
private String root = "/";
private TextView myPath;
private ArrayList<HashMap<String, Object>> mList;
private Button selectButton;
private Button cancelButton;
private LinearLayout layoutSelect;
private InputMethodManager inputManager;
private String parentPath;
private String currentPath = root;
private MediaPlayer player;
private File selectedFile;
private HashMap<String, Integer> lastPositions = new HashMap<String, Integer>();
private Stack<String> history;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setResult(RESULT_CANCELED, getIntent());
setContentView(R.layout.file_dialog_main);
myPath = (TextView) findViewById(R.id.path);
inputManager = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
selectButton = (Button) findViewById(R.id.fdButtonSelect);
selectButton.setEnabled(false);
selectButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
if (selectedFile != null) {
getIntent().putExtra(RESULT_URI,
selectedFile.toURI().toString());
setResult(RESULT_OK, getIntent());
finish();
}
}
});
history = new Stack<String>();
layoutSelect = (LinearLayout) findViewById(R.id.fdLinearLayoutSelect);
cancelButton = (Button) findViewById(R.id.fdButtonCancel);
cancelButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
setResult(RESULT_CANCELED, getIntent());
finish();
}
});
player = new MediaPlayer();
String startUri = getIntent().getStringExtra(START_URI);
if (startUri != null) {
String path = Uri.parse(startUri).getPath();
File file = new File(path);
if (!file.exists()) {
getDir(root);
} else {
getDir(file.getParent());
selectFile(file);
}
} else {
getDir(root);
}
}
private void getDir(String dirPath) {
boolean useAutoSelection = dirPath.length() < currentPath.length();
Integer position = lastPositions.get(parentPath);
history.push(dirPath);
getDirImpl(dirPath);
if (position != null && useAutoSelection) {
getListView().setSelection(position);
}
}
private void getDirImpl(String dirPath) {
myPath.setText(getText(R.string.location) + ": " + dirPath);
currentPath = dirPath;
item = new ArrayList<String>();
path = new ArrayList<String>();
mList = new ArrayList<HashMap<String, Object>>();
File f = new File(dirPath);
File[] files = f.listFiles();
if (!dirPath.equals(root)) {
item.add(root);
addItem(root, R.drawable.folder);
path.add(root);
item.add("../");
addItem("../", R.drawable.folder);
path.add(f.getParent());
parentPath = f.getParent();
}
TreeMap<String, String> dirsMap = new TreeMap<String, String>();
TreeMap<String, String> dirsPathMap = new TreeMap<String, String>();
TreeMap<String, String> filesMap = new TreeMap<String, String>();
TreeMap<String, String> filesPathMap = new TreeMap<String, String>();
for (File file : files) {
if (file.isDirectory()) {
String dirName = file.getName();
dirsMap.put(dirName, dirName);
dirsPathMap.put(dirName, file.getPath());
} else {
filesMap.put(file.getName(), file.getName());
filesPathMap.put(file.getName(), file.getPath());
}
}
item.addAll(dirsMap.tailMap("").values());
item.addAll(filesMap.tailMap("").values());
path.addAll(dirsPathMap.tailMap("").values());
path.addAll(filesPathMap.tailMap("").values());
SimpleAdapter fileList = new FileSimpleAdapter(this, mList,
R.layout.file_dialog_row,
new String[] { ITEM_KEY, ITEM_IMAGE }, new int[] {
R.id.fdrowtext, R.id.fdrowimage });
for (String dir : dirsMap.tailMap("").values()) {
addItem(dir, R.drawable.folder);
}
for (String file : filesMap.tailMap("").values()) {
addItem(file, R.drawable.file);
}
fileList.notifyDataSetChanged();
setListAdapter(fileList);
}
private void addItem(String fileName, int imageId) {
HashMap<String, Object> item = new HashMap<String, Object>();
item.put(ITEM_KEY, fileName);
item.put(ITEM_IMAGE, imageId);
mList.add(item);
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
File file = new File(path.get(position));
if (file.isDirectory()) {
unselect();
if (file.canRead()) {
lastPositions.put(currentPath, position);
getDir(path.get(position));
} else {
new AlertDialog.Builder(this)
.setIcon(R.drawable.icon)
.setTitle(
"[" + file.getName() + "] "
+ getText(R.string.cant_read_folder))
.setPositiveButton("OK",
new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog,
int which) {
}
}).show();
}
} else {
selectFile(file);
}
}
private void selectFile(File file) {
player.reset();
String fileName = file.getName();
int position = 0;
for (Map<String, Object> curFile : mList) {
if (curFile.get(ITEM_KEY).equals(fileName)) {
break;
}
position++;
}
getListView().smoothScrollToPosition(position);
try {
Uri uri = Uri.parse(file.toURI().toString());
player.setDataSource(FileDialog.this, uri);
player.prepare();
player.start();
selectedFile = file;
selectButton.setEnabled(true);
getListView().invalidateViews();
} catch (Exception e) {
Toast.makeText(FileDialog.this,
R.string.bad_file,
Toast.LENGTH_SHORT).show();
}
}
@Override
public void onDestroy() {
if (player.isPlaying()) {
player.stop();
}
super.onDestroy();
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_BACK)) {
unselect();
if (!history.isEmpty()) {
history.pop();
}
if (!history.empty()) {
getDir(history.pop());
} else {
return super.onKeyDown(keyCode, event);
}
return true;
} else {
return super.onKeyDown(keyCode, event);
}
}
private void unselect() {
selectButton.setEnabled(false);
if (player.isPlaying()) {
player.stop();
}
}
private class FileSimpleAdapter extends SimpleAdapter {
public FileSimpleAdapter(Context context,
List<? extends Map<String, ?>> data, int resource,
String[] from, int[] to) {
super(context, data, resource, from, to);
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View v = super.getView(position, convertView, parent);
Map<String, Object> item = (Map)getItem(position);
boolean selected = selectedFile != null &&
selectedFile.getName().equals(item.get(ITEM_KEY));
v.setBackgroundColor(!selected ? Color.BLACK : Color.BLUE);
return v;
}
}
}