From 3e4d8f433239c40311037616b1b8833a06651ae0 Mon Sep 17 00:00:00 2001 From: Arne Schwabe Date: Mon, 16 Apr 2012 19:21:14 +0200 Subject: Initial import --- src/com/lamerman/FileDialog.java | 389 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 389 insertions(+) create mode 100644 src/com/lamerman/FileDialog.java (limited to 'src/com/lamerman/FileDialog.java') diff --git a/src/com/lamerman/FileDialog.java b/src/com/lamerman/FileDialog.java new file mode 100644 index 00000000..821b1fbf --- /dev/null +++ b/src/com/lamerman/FileDialog.java @@ -0,0 +1,389 @@ +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 path = null; + private TextView myPath; + private EditText mFileName; + private ArrayList> 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 lastPositions = new HashMap(); + + /** + * 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 item = new ArrayList(); + path = new ArrayList(); + mList = new ArrayList>(); + + 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 dirsMap = new TreeMap(); + TreeMap dirsPathMap = new TreeMap(); + TreeMap filesMap = new TreeMap(); + TreeMap filesPathMap = new TreeMap(); + 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 item = new HashMap(); + 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); + } +} -- cgit v1.2.3