1 files changed, 389 insertions, 0 deletions
diff --git a/src/com/lamerman/FileDialog.java b/src/com/lamerman/FileDialog.java
new file mode 100644
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+++ b/src/com/lamerman/FileDialog.java
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+package com.lamerman;
+
+import java.io.File;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+import java.util.TreeMap;
+
+import de.blinkt.openvpn.R;
+
+import android.app.AlertDialog;
+import android.app.ListActivity;
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.View.OnClickListener;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.LinearLayout;
+import android.widget.ListView;
+import android.widget.SimpleAdapter;
+import android.widget.TextView;
+
+/**
+ * Activity para escolha de arquivos/diretorios.
+ * 
+ * @author android
+ * 
+ */
+public class FileDialog extends ListActivity {
+
+	/**
+	 * Chave de um item da lista de paths.
+	 */
+	private static final String ITEM_KEY = "key";
+
+	/**
+	 * Imagem de um item da lista de paths (diretorio ou arquivo).
+	 */
+	private static final String ITEM_IMAGE = "image";
+
+	/**
+	 * Diretorio raiz.
+	 */
+	private static final String ROOT = "/";
+
+	/**
+	 * Parametro de entrada da Activity: path inicial. Padrao: ROOT.
+	 */
+	public static final String START_PATH = "START_PATH";
+
+	/**
+	 * Parametro de entrada da Activity: filtro de formatos de arquivos. Padrao:
+	 * null.
+	 */
+	public static final String FORMAT_FILTER = "FORMAT_FILTER";
+
+	/**
+	 * Parametro de saida da Activity: path escolhido. Padrao: null.
+	 */
+	public static final String RESULT_PATH = "RESULT_PATH";
+
+	/**
+	 * Parametro de entrada da Activity: tipo de selecao: pode criar novos paths
+	 * ou nao. Padrao: nao permite.
+	 * 
+	 * @see {@link SelectionMode}
+	 */
+	public static final String SELECTION_MODE = "SELECTION_MODE";
+
+	/**
+	 * Parametro de entrada da Activity: se e permitido escolher diretorios.
+	 * Padrao: falso.
+	 */
+	public static final String CAN_SELECT_DIR = "CAN_SELECT_DIR";
+
+	private List<String> path = null;
+	private TextView myPath;
+	private EditText mFileName;
+	private ArrayList<HashMap<String, Object>> mList;
+
+	private Button selectButton;
+
+	private LinearLayout layoutSelect;
+	private LinearLayout layoutCreate;
+	private InputMethodManager inputManager;
+	private String parentPath;
+	private String currentPath = ROOT;
+
+	private int selectionMode = SelectionMode.MODE_CREATE;
+
+	private String[] formatFilter = null;
+
+	private boolean canSelectDir = false;
+
+	private File selectedFile;
+	private HashMap<String, Integer> lastPositions = new HashMap<String, Integer>();
+
+	/**
+	 * Called when the activity is first created. Configura todos os parametros
+	 * de entrada e das VIEWS..
+	 */
+	@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);
+		mFileName = (EditText) findViewById(R.id.fdEditTextFile);
+
+		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_PATH, selectedFile.getPath());
+					setResult(RESULT_OK, getIntent());
+					finish();
+				}
+			}
+		});
+
+		final Button newButton = (Button) findViewById(R.id.fdButtonNew);
+		newButton.setOnClickListener(new OnClickListener() {
+
+			@Override
+			public void onClick(View v) {
+				setCreateVisible(v);
+
+				mFileName.setText("");
+				mFileName.requestFocus();
+			}
+		});
+
+		selectionMode = getIntent().getIntExtra(SELECTION_MODE, SelectionMode.MODE_CREATE);
+
+		formatFilter = getIntent().getStringArrayExtra(FORMAT_FILTER);
+
+		canSelectDir = getIntent().getBooleanExtra(CAN_SELECT_DIR, false);
+
+		if (selectionMode == SelectionMode.MODE_OPEN) {
+			newButton.setEnabled(false);
+			newButton.setVisibility(View.GONE);
+		}
+
+		layoutSelect = (LinearLayout) findViewById(R.id.fdLinearLayoutSelect);
+		layoutCreate = (LinearLayout) findViewById(R.id.fdLinearLayoutCreate);
+		layoutCreate.setVisibility(View.GONE);
+
+		final Button cancelButton = (Button) findViewById(R.id.fdButtonCancel);
+		cancelButton.setOnClickListener(new OnClickListener() {
+
+			@Override
+			public void onClick(View v) {
+				setSelectVisible(v);
+			}
+
+		});
+		final Button createButton = (Button) findViewById(R.id.fdButtonCreate);
+		createButton.setOnClickListener(new OnClickListener() {
+
+			@Override
+			public void onClick(View v) {
+				if (mFileName.getText().length() > 0) {
+					getIntent().putExtra(RESULT_PATH, currentPath + "/" + mFileName.getText());
+					setResult(RESULT_OK, getIntent());
+					finish();
+				}
+			}
+		});
+
+		String startPath = getIntent().getStringExtra(START_PATH);
+		startPath = startPath != null ? startPath : ROOT;
+		if (canSelectDir) {
+			File file = new File(startPath);
+			selectedFile = file;
+			selectButton.setEnabled(true);
+		}
+		getDir(startPath);
+	}
+
+	private void getDir(String dirPath) {
+
+		boolean useAutoSelection = dirPath.length() < currentPath.length();
+
+		Integer position = lastPositions.get(parentPath);
+
+		getDirImpl(dirPath);
+
+		if (position != null && useAutoSelection) {
+			getListView().setSelection(position);
+		}
+
+	}
+
+	/**
+	 * Monta a estrutura de arquivos e diretorios filhos do diretorio fornecido.
+	 * 
+	 * @param dirPath
+	 *            Diretorio pai.
+	 */
+	private void getDirImpl(final String dirPath) {
+
+		currentPath = dirPath;
+
+		final List<String> item = new ArrayList<String>();
+		path = new ArrayList<String>();
+		mList = new ArrayList<HashMap<String, Object>>();
+
+		File f = new File(currentPath);
+		File[] files = f.listFiles();
+		if (files == null) {
+			currentPath = ROOT;
+			f = new File(currentPath);
+			files = f.listFiles();
+		}
+		myPath.setText(getText(R.string.location) + ": " + currentPath);
+
+		if (!currentPath.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 {
+				final String fileName = file.getName();
+				final String fileNameLwr = fileName.toLowerCase();
+				// se ha um filtro de formatos, utiliza-o
+				if (formatFilter != null) {
+					boolean contains = false;
+					for (int i = 0; i < formatFilter.length; i++) {
+						final String formatLwr = formatFilter[i].toLowerCase();
+						if (fileNameLwr.endsWith(formatLwr)) {
+							contains = true;
+							break;
+						}
+					}
+					if (contains) {
+						filesMap.put(fileName, fileName);
+						filesPathMap.put(fileName, file.getPath());
+					}
+					// senao, adiciona todos os arquivos
+				} else {
+					filesMap.put(fileName, fileName);
+					filesPathMap.put(fileName, 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 SimpleAdapter(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);
+	}
+
+	/**
+	 * Quando clica no item da lista, deve-se: 1) Se for diretorio, abre seus
+	 * arquivos filhos; 2) Se puder escolher diretorio, define-o como sendo o
+	 * path escolhido. 3) Se for arquivo, define-o como path escolhido. 4) Ativa
+	 * botao de selecao.
+	 */
+	@Override
+	protected void onListItemClick(ListView l, View v, int position, long id) {
+
+		File file = new File(path.get(position));
+
+		setSelectVisible(v);
+
+		if (file.isDirectory()) {
+			selectButton.setEnabled(false);
+			if (file.canRead()) {
+				lastPositions.put(currentPath, position);
+				getDir(path.get(position));
+				if (canSelectDir) {
+					selectedFile = file;
+					v.setSelected(true);
+					selectButton.setEnabled(true);
+				}
+			} 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 {
+			selectedFile = file;
+			v.setSelected(true);
+			selectButton.setEnabled(true);
+		}
+	}
+
+	@Override
+	public boolean onKeyDown(int keyCode, KeyEvent event) {
+		if ((keyCode == KeyEvent.KEYCODE_BACK)) {
+			selectButton.setEnabled(false);
+
+			if (layoutCreate.getVisibility() == View.VISIBLE) {
+				layoutCreate.setVisibility(View.GONE);
+				layoutSelect.setVisibility(View.VISIBLE);
+			} else {
+				if (!currentPath.equals(ROOT)) {
+					getDir(parentPath);
+				} else {
+					return super.onKeyDown(keyCode, event);
+				}
+			}
+
+			return true;
+		} else {
+			return super.onKeyDown(keyCode, event);
+		}
+	}
+
+	/**
+	 * Define se o botao de CREATE e visivel.
+	 * 
+	 * @param v
+	 */
+	private void setCreateVisible(View v) {
+		layoutCreate.setVisibility(View.VISIBLE);
+		layoutSelect.setVisibility(View.GONE);
+
+		inputManager.hideSoftInputFromWindow(v.getWindowToken(), 0);
+		selectButton.setEnabled(false);
+	}
+
+	/**
+	 * Define se o botao de SELECT e visivel.
+	 * 
+	 * @param v
+	 */
+	private void setSelectVisible(View v) {
+		layoutCreate.setVisibility(View.GONE);
+		layoutSelect.setVisibility(View.VISIBLE);
+
+		inputManager.hideSoftInputFromWindow(v.getWindowToken(), 0);
+		selectButton.setEnabled(false);
+	}
+}