[7f76117] | 1 | package com.lamerman; |
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| 2 | |
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| 3 | import java.io.File; |
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| 4 | import java.util.ArrayList; |
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| 5 | import java.util.HashMap; |
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| 6 | import java.util.List; |
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| 7 | import java.util.TreeMap; |
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| 8 | |
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| 9 | import android.app.AlertDialog; |
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| 10 | import android.app.ListActivity; |
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| 11 | import android.content.DialogInterface; |
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| 12 | import android.os.Bundle; |
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| 13 | import android.view.KeyEvent; |
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| 14 | import android.view.View; |
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| 15 | import android.view.View.OnClickListener; |
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| 16 | import android.view.inputmethod.InputMethodManager; |
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| 17 | import android.widget.Button; |
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| 18 | import android.widget.EditText; |
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| 19 | import android.widget.LinearLayout; |
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| 20 | import android.widget.ListView; |
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| 21 | import android.widget.SimpleAdapter; |
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| 22 | import android.widget.TextView; |
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| 23 | |
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| 24 | /** |
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| 25 | * Activity para escolha de arquivos/diretorios. |
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| 26 | * |
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| 27 | * @author android |
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| 28 | * |
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| 29 | */ |
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| 30 | public class FileDialog extends ListActivity { |
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| 31 | |
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| 32 | /** |
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| 33 | * Chave de um item da lista de paths. |
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| 34 | */ |
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| 35 | private static final String ITEM_KEY = "key"; |
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| 36 | |
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| 37 | /** |
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| 38 | * Imagem de um item da lista de paths (diretorio ou arquivo). |
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| 39 | */ |
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| 40 | private static final String ITEM_IMAGE = "image"; |
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| 41 | |
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| 42 | /** |
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| 43 | * Diretorio raiz. |
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| 44 | */ |
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| 45 | private static final String ROOT = "/"; |
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| 46 | |
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| 47 | /** |
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| 48 | * Parametro de entrada da Activity: path inicial. Padrao: ROOT. |
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| 49 | */ |
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| 50 | public static final String START_PATH = "START_PATH"; |
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| 51 | |
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| 52 | /** |
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| 53 | * Parametro de entrada da Activity: filtro de formatos de arquivos. Padrao: |
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| 54 | * null. |
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| 55 | */ |
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| 56 | public static final String FORMAT_FILTER = "FORMAT_FILTER"; |
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| 57 | |
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| 58 | /** |
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| 59 | * Parametro de saida da Activity: path escolhido. Padrao: null. |
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| 60 | */ |
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| 61 | public static final String RESULT_PATH = "RESULT_PATH"; |
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| 62 | |
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| 63 | /** |
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| 64 | * Parametro de entrada da Activity: tipo de selecao: pode criar novos paths |
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| 65 | * ou nao. Padrao: nao permite. |
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| 66 | * |
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| 67 | * @see {@link SelectionMode} |
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| 68 | */ |
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| 69 | public static final String SELECTION_MODE = "SELECTION_MODE"; |
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| 70 | |
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| 71 | /** |
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| 72 | * Parametro de entrada da Activity: se e permitido escolher diretorios. |
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| 73 | * Padrao: falso. |
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| 74 | */ |
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| 75 | public static final String CAN_SELECT_DIR = "CAN_SELECT_DIR"; |
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| 76 | |
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| 77 | private List<String> path = null; |
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| 78 | private TextView myPath; |
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| 79 | private EditText mFileName; |
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| 80 | private ArrayList<HashMap<String, Object>> mList; |
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| 81 | |
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| 82 | private Button selectButton; |
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| 83 | |
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| 84 | private LinearLayout layoutSelect; |
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| 85 | private LinearLayout layoutCreate; |
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| 86 | private InputMethodManager inputManager; |
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| 87 | private String parentPath; |
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| 88 | private String currentPath = ROOT; |
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| 89 | |
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| 90 | private int selectionMode = SelectionMode.MODE_CREATE; |
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| 91 | |
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| 92 | private String[] formatFilter = null; |
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| 93 | |
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| 94 | private boolean canSelectDir = false; |
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| 95 | |
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| 96 | private File selectedFile; |
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| 97 | private HashMap<String, Integer> lastPositions = new HashMap<String, Integer>(); |
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| 98 | |
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| 99 | /** |
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| 100 | * Called when the activity is first created. Configura todos os parametros |
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| 101 | * de entrada e das VIEWS.. |
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| 102 | */ |
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| 103 | @Override |
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| 104 | public void onCreate(Bundle savedInstanceState) { |
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| 105 | super.onCreate(savedInstanceState); |
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| 106 | setResult(RESULT_CANCELED, getIntent()); |
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| 107 | |
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| 108 | setContentView(R.layout.file_dialog_main); |
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| 109 | myPath = (TextView) findViewById(R.id.path); |
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| 110 | mFileName = (EditText) findViewById(R.id.fdEditTextFile); |
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| 111 | |
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| 112 | inputManager = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE); |
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| 113 | |
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| 114 | selectButton = (Button) findViewById(R.id.fdButtonSelect); |
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| 115 | selectButton.setEnabled(false); |
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| 116 | selectButton.setOnClickListener(new OnClickListener() { |
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| 117 | |
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| 118 | @Override |
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| 119 | public void onClick(View v) { |
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| 120 | if (selectedFile != null) { |
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| 121 | getIntent().putExtra(RESULT_PATH, selectedFile.getPath()); |
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| 122 | setResult(RESULT_OK, getIntent()); |
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| 123 | finish(); |
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| 124 | } |
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| 125 | } |
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| 126 | }); |
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| 127 | |
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| 128 | final Button newButton = (Button) findViewById(R.id.fdButtonNew); |
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| 129 | newButton.setOnClickListener(new OnClickListener() { |
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| 130 | |
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| 131 | @Override |
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| 132 | public void onClick(View v) { |
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| 133 | setCreateVisible(v); |
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| 134 | |
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| 135 | mFileName.setText(""); |
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| 136 | mFileName.requestFocus(); |
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| 137 | } |
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| 138 | }); |
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| 139 | |
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| 140 | selectionMode = getIntent().getIntExtra(SELECTION_MODE, SelectionMode.MODE_CREATE); |
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| 141 | |
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| 142 | formatFilter = getIntent().getStringArrayExtra(FORMAT_FILTER); |
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| 143 | |
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| 144 | canSelectDir = getIntent().getBooleanExtra(CAN_SELECT_DIR, false); |
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| 145 | |
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| 146 | if (selectionMode == SelectionMode.MODE_OPEN) { |
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| 147 | newButton.setEnabled(false); |
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| 148 | } |
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| 149 | |
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| 150 | layoutSelect = (LinearLayout) findViewById(R.id.fdLinearLayoutSelect); |
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| 151 | layoutCreate = (LinearLayout) findViewById(R.id.fdLinearLayoutCreate); |
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| 152 | layoutCreate.setVisibility(View.GONE); |
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| 153 | |
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| 154 | final Button cancelButton = (Button) findViewById(R.id.fdButtonCancel); |
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| 155 | cancelButton.setOnClickListener(new OnClickListener() { |
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| 156 | |
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| 157 | @Override |
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| 158 | public void onClick(View v) { |
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| 159 | setSelectVisible(v); |
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| 160 | } |
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| 161 | |
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| 162 | }); |
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| 163 | final Button createButton = (Button) findViewById(R.id.fdButtonCreate); |
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| 164 | createButton.setOnClickListener(new OnClickListener() { |
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| 165 | |
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| 166 | @Override |
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| 167 | public void onClick(View v) { |
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| 168 | if (mFileName.getText().length() > 0) { |
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| 169 | getIntent().putExtra(RESULT_PATH, currentPath + "/" + mFileName.getText()); |
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| 170 | setResult(RESULT_OK, getIntent()); |
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| 171 | finish(); |
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| 172 | } |
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| 173 | } |
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| 174 | }); |
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| 175 | |
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| 176 | String startPath = getIntent().getStringExtra(START_PATH); |
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| 177 | startPath = startPath != null ? startPath : ROOT; |
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| 178 | if (canSelectDir) { |
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| 179 | File file = new File(startPath); |
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| 180 | selectedFile = file; |
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| 181 | selectButton.setEnabled(true); |
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| 182 | } |
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| 183 | getDir(startPath); |
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| 184 | } |
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| 185 | |
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| 186 | private void getDir(String dirPath) { |
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| 187 | |
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| 188 | boolean useAutoSelection = dirPath.length() < currentPath.length(); |
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| 189 | |
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| 190 | Integer position = lastPositions.get(parentPath); |
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| 191 | |
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| 192 | getDirImpl(dirPath); |
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| 193 | |
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| 194 | if (position != null && useAutoSelection) { |
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| 195 | getListView().setSelection(position); |
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| 196 | } |
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| 197 | |
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| 198 | } |
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| 199 | |
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| 200 | /** |
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| 201 | * Monta a estrutura de arquivos e diretorios filhos do diretorio fornecido. |
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| 202 | * |
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| 203 | * @param dirPath |
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| 204 | * Diretorio pai. |
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| 205 | */ |
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| 206 | private void getDirImpl(final String dirPath) { |
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| 207 | |
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| 208 | currentPath = dirPath; |
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| 209 | |
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| 210 | final List<String> item = new ArrayList<String>(); |
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| 211 | path = new ArrayList<String>(); |
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| 212 | mList = new ArrayList<HashMap<String, Object>>(); |
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| 213 | |
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| 214 | File f = new File(currentPath); |
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| 215 | File[] files = f.listFiles(); |
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| 216 | if (files == null) { |
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| 217 | currentPath = ROOT; |
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| 218 | f = new File(currentPath); |
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| 219 | files = f.listFiles(); |
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| 220 | } |
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| 221 | myPath.setText(getText(R.string.location) + ": " + currentPath); |
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| 222 | |
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| 223 | if (!currentPath.equals(ROOT)) { |
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| 224 | |
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| 225 | item.add(ROOT); |
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| 226 | addItem(ROOT, R.drawable.folder); |
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| 227 | path.add(ROOT); |
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| 228 | |
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| 229 | item.add("../"); |
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| 230 | addItem("../", R.drawable.folder); |
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| 231 | path.add(f.getParent()); |
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| 232 | parentPath = f.getParent(); |
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| 233 | |
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| 234 | } |
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| 235 | |
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| 236 | TreeMap<String, String> dirsMap = new TreeMap<String, String>(); |
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| 237 | TreeMap<String, String> dirsPathMap = new TreeMap<String, String>(); |
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| 238 | TreeMap<String, String> filesMap = new TreeMap<String, String>(); |
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| 239 | TreeMap<String, String> filesPathMap = new TreeMap<String, String>(); |
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| 240 | for (File file : files) { |
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| 241 | if (file.isDirectory()) { |
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| 242 | String dirName = file.getName(); |
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| 243 | dirsMap.put(dirName, dirName); |
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| 244 | dirsPathMap.put(dirName, file.getPath()); |
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| 245 | } else { |
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| 246 | final String fileName = file.getName(); |
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| 247 | final String fileNameLwr = fileName.toLowerCase(); |
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| 248 | // se ha um filtro de formatos, utiliza-o |
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| 249 | if (formatFilter != null) { |
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| 250 | boolean contains = false; |
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| 251 | for (int i = 0; i < formatFilter.length; i++) { |
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| 252 | final String formatLwr = formatFilter[i].toLowerCase(); |
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| 253 | if (fileNameLwr.endsWith(formatLwr)) { |
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| 254 | contains = true; |
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| 255 | break; |
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| 256 | } |
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| 257 | } |
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| 258 | if (contains) { |
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| 259 | filesMap.put(fileName, fileName); |
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| 260 | filesPathMap.put(fileName, file.getPath()); |
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| 261 | } |
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| 262 | // senao, adiciona todos os arquivos |
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| 263 | } else { |
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| 264 | filesMap.put(fileName, fileName); |
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| 265 | filesPathMap.put(fileName, file.getPath()); |
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| 266 | } |
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| 267 | } |
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| 268 | } |
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| 269 | item.addAll(dirsMap.tailMap("").values()); |
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| 270 | item.addAll(filesMap.tailMap("").values()); |
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| 271 | path.addAll(dirsPathMap.tailMap("").values()); |
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| 272 | path.addAll(filesPathMap.tailMap("").values()); |
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| 273 | |
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| 274 | SimpleAdapter fileList = new SimpleAdapter(this, mList, R.layout.file_dialog_row, new String[] { |
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| 275 | ITEM_KEY, ITEM_IMAGE }, new int[] { R.id.fdrowtext, R.id.fdrowimage }); |
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| 276 | |
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| 277 | for (String dir : dirsMap.tailMap("").values()) { |
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| 278 | addItem(dir, R.drawable.folder); |
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| 279 | } |
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| 280 | |
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| 281 | for (String file : filesMap.tailMap("").values()) { |
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| 282 | addItem(file, R.drawable.file); |
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| 283 | } |
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| 284 | |
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| 285 | fileList.notifyDataSetChanged(); |
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| 286 | |
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| 287 | setListAdapter(fileList); |
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| 288 | |
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| 289 | } |
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| 290 | |
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| 291 | private void addItem(String fileName, int imageId) { |
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| 292 | HashMap<String, Object> item = new HashMap<String, Object>(); |
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| 293 | item.put(ITEM_KEY, fileName); |
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| 294 | item.put(ITEM_IMAGE, imageId); |
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| 295 | mList.add(item); |
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| 296 | } |
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| 297 | |
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| 298 | /** |
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| 299 | * Quando clica no item da lista, deve-se: 1) Se for diretorio, abre seus |
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| 300 | * arquivos filhos; 2) Se puder escolher diretorio, define-o como sendo o |
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| 301 | * path escolhido. 3) Se for arquivo, define-o como path escolhido. 4) Ativa |
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| 302 | * botao de selecao. |
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| 303 | */ |
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| 304 | @Override |
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| 305 | protected void onListItemClick(ListView l, View v, int position, long id) { |
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| 306 | |
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| 307 | File file = new File(path.get(position)); |
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| 308 | |
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| 309 | setSelectVisible(v); |
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| 310 | |
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| 311 | if (file.isDirectory()) { |
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| 312 | selectButton.setEnabled(false); |
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| 313 | if (file.canRead()) { |
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| 314 | lastPositions.put(currentPath, position); |
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| 315 | getDir(path.get(position)); |
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| 316 | if (canSelectDir) { |
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| 317 | selectedFile = file; |
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| 318 | v.setSelected(true); |
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| 319 | selectButton.setEnabled(true); |
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| 320 | } |
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| 321 | } else { |
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| 322 | new AlertDialog.Builder(this).setIcon(R.drawable.icon) |
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| 323 | .setTitle("[" + file.getName() + "] " + getText(R.string.cant_read_folder)) |
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| 324 | .setPositiveButton("OK", new DialogInterface.OnClickListener() { |
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| 325 | |
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| 326 | @Override |
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| 327 | public void onClick(DialogInterface dialog, int which) { |
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| 328 | |
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| 329 | } |
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| 330 | }).show(); |
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| 331 | } |
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| 332 | } else { |
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| 333 | selectedFile = file; |
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| 334 | v.setSelected(true); |
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| 335 | selectButton.setEnabled(true); |
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| 336 | } |
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| 337 | } |
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| 338 | |
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| 339 | @Override |
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| 340 | public boolean onKeyDown(int keyCode, KeyEvent event) { |
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| 341 | if ((keyCode == KeyEvent.KEYCODE_BACK)) { |
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| 342 | selectButton.setEnabled(false); |
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| 343 | |
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| 344 | if (layoutCreate.getVisibility() == View.VISIBLE) { |
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| 345 | layoutCreate.setVisibility(View.GONE); |
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| 346 | layoutSelect.setVisibility(View.VISIBLE); |
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| 347 | } else { |
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| 348 | if (!currentPath.equals(ROOT)) { |
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| 349 | getDir(parentPath); |
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| 350 | } else { |
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| 351 | return super.onKeyDown(keyCode, event); |
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| 352 | } |
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| 353 | } |
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| 354 | |
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| 355 | return true; |
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| 356 | } else { |
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| 357 | return super.onKeyDown(keyCode, event); |
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| 358 | } |
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| 359 | } |
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| 360 | |
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| 361 | /** |
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| 362 | * Define se o botao de CREATE e visivel. |
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| 363 | * |
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| 364 | * @param v |
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| 365 | */ |
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| 366 | private void setCreateVisible(View v) { |
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| 367 | layoutCreate.setVisibility(View.VISIBLE); |
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| 368 | layoutSelect.setVisibility(View.GONE); |
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| 369 | |
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| 370 | inputManager.hideSoftInputFromWindow(v.getWindowToken(), 0); |
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| 371 | selectButton.setEnabled(false); |
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| 372 | } |
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| 373 | |
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| 374 | /** |
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| 375 | * Define se o botao de SELECT e visivel. |
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| 376 | * |
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| 377 | * @param v |
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| 378 | */ |
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| 379 | private void setSelectVisible(View v) { |
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| 380 | layoutCreate.setVisibility(View.GONE); |
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| 381 | layoutSelect.setVisibility(View.VISIBLE); |
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| 382 | |
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| 383 | inputManager.hideSoftInputFromWindow(v.getWindowToken(), 0); |
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| 384 | selectButton.setEnabled(false); |
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| 385 | } |
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| 386 | } |
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