1 package net.sf.openrocket.android.filebrowser;
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4 import java.io.FileFilter;
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5 import java.util.ArrayList;
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6 import java.util.Arrays;
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7 import java.util.Comparator;
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8 import java.util.List;
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10 import net.sf.openrocket.R;
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11 import net.sf.openrocket.android.actionbarcompat.ActionBarListActivity;
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12 import android.app.AlertDialog;
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13 import android.app.Dialog;
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14 import android.content.DialogInterface;
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15 import android.content.Intent;
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16 import android.content.SharedPreferences;
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17 import android.content.res.Resources;
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18 import android.net.Uri;
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19 import android.os.Bundle;
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20 import android.os.Environment;
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21 import android.preference.PreferenceManager;
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22 import android.view.View;
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23 import android.view.ViewGroup;
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24 import android.widget.BaseAdapter;
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25 import android.widget.ImageView;
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26 import android.widget.ListView;
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27 import android.widget.TextView;
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29 public class SimpleFileBrowser extends ActionBarListActivity {
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31 private List<File> path = null;
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32 private final static File root = new File("/");
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34 private File previousDirectory = root;
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36 private String baseDirPrefKey;
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37 private String baseDirName;
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39 private boolean showOnlyOrkFiles;
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41 private static final OrkFileFilter filter = new OrkFileFilter();
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42 private static final Comparator<String> sorter = new AlphanumComparator();
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44 /** Called when the activity is first created. */
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46 public void onCreate(Bundle savedInstanceState) {
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47 super.onCreate(savedInstanceState);
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48 setContentView(R.layout.simplefilebrowser);
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50 Resources resources = this.getResources();
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51 baseDirPrefKey = resources.getString(R.string.PreferenceFileBrowserBaseDirectory);
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52 SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(this);
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54 String showOnlyOrkFilesKey = resources.getString(R.string.PreferenceShowOnlyOrkFiles);
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55 showOnlyOrkFiles = pref.getBoolean(showOnlyOrkFilesKey, false);
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57 baseDirName = pref.getString(baseDirPrefKey, Environment.getExternalStorageDirectory().getAbsolutePath() );
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58 getDir( new File(baseDirName) );
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61 private static class OrkFileFilter implements FileFilter {
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64 * @see java.io.FileFilter#accept(java.io.File)
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67 public boolean accept(File arg0) {
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68 if ( arg0.isDirectory() ) {
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74 public boolean isOrk(File arg0) {
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75 if ( arg0.getName().endsWith(".ork") ) {
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82 private static class FileComparator implements Comparator<File> {
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85 * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
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88 public int compare(File arg0, File arg1) {
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89 // Directories come before files, otherwise alpha.
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90 if ( arg0.isDirectory() ) {
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91 if ( ! arg1.isDirectory() ) {
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94 return sorter.compare(arg0.getName(), arg1.getName());
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97 // arg0 is not a directory.
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98 if ( arg1.isDirectory() ) {
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102 return sorter.compare(arg0.getName(), arg1.getName());
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107 private void getDir(final File dirPath) {
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109 // A little sanity check. It could be possible the directory saved in the preference
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110 // is no longer mounted, is not a directory (any more), or cannot be read.
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111 // if any of these are the case, we display a little dialog, then revert to the
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112 // previousDirectory.
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113 if ( !dirPath.exists() || !dirPath.isDirectory() || !dirPath.canRead() ) {
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115 AlertDialog.Builder builder = new AlertDialog.Builder(this);
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116 builder.setTitle("Unable to open directory " + dirPath.getAbsolutePath() );
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117 builder.setCancelable(true);
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118 builder.setOnCancelListener( new Dialog.OnCancelListener() {
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121 public void onCancel(DialogInterface arg0) {
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122 if ( root.getAbsolutePath().equals(dirPath.getAbsolutePath()) ) {
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123 SimpleFileBrowser.this.finish();
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125 SimpleFileBrowser.this.getDir( previousDirectory );
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134 previousDirectory = dirPath;
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136 setTitle(dirPath.getAbsolutePath());
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137 path = new ArrayList<File>();
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139 File[] files = dirPath.listFiles((showOnlyOrkFiles) ? filter : null );
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141 boolean hasUp = false;
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142 if ( !dirPath.getAbsolutePath().equals("/")) {
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144 path.add( dirPath.getParentFile() );
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148 Arrays.sort(files, new FileComparator() );
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149 for( File file : files ) {
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153 DirectoryList fileList = new DirectoryList(hasUp, path);
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154 setListAdapter(fileList);
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159 protected void onListItemClick(ListView l, View v, int position, long id) {
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160 final File file = path.get(position);
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161 if (file.isDirectory()) {
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162 if (file.canRead())
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163 getDir(path.get(position));
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165 new AlertDialog.Builder(this).setIcon(R.drawable.or_launcher)
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166 .setTitle("[" + file.getName() + "] folder can't be read!")
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167 .setPositiveButton("OK",
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168 new DialogInterface.OnClickListener() {
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170 public void onClick(DialogInterface dialog, int which) {
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171 // TODO Auto-generated method stub
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178 Intent resultData = new Intent(Intent.ACTION_VIEW);
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179 resultData.setData( Uri.fromFile(file) );
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180 setResult(RESULT_OK,resultData);
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185 private class DirectoryList extends BaseAdapter {
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187 List<File> listing;
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190 DirectoryList( boolean hasUp ,List<File> listing ) {
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191 this.listing = listing;
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192 this.hasUp = hasUp;
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196 public int getCount() {
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197 return listing.size();
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201 public Object getItem(int arg0) {
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202 return listing.get(arg0);
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206 public long getItemId(int position) {
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211 public View getView(int position, View convertView, ViewGroup parent) {
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212 if ( convertView == null ) {
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213 convertView = getLayoutInflater().inflate(R.layout.filebrowser_list_item, parent, false);
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216 File file = (File) getItem(position);
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218 // Set the name of the field.
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220 String fileName = file.getName();
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222 if (position == 0 ) {
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223 fileName = root.getAbsolutePath();
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224 } else if (position == 1) {
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229 ((TextView) convertView.findViewById(R.id.filebrowser_list_item_name)).setText(fileName);
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232 // Set the "type icon" directory, ork file, or none.
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234 ImageView v = (ImageView) (convertView.findViewById(R.id.filebrowser_list_item_typeicon));
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235 if ( file.isDirectory() ) {
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236 v.setVisibility(View.VISIBLE);
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237 v.setImageResource(R.drawable.ic_directory);
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238 } else if ( filter.isOrk( file ) ) {
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239 v.setVisibility(View.VISIBLE);
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240 v.setImageResource(R.drawable.or_launcher);
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242 v.setVisibility(View.INVISIBLE);
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246 // Set the "base directory" thing.
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248 ImageView v = (ImageView) (convertView.findViewById(R.id.filebrowser_list_item_homeicon));
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249 if ( !file.isDirectory() ) {
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250 v.setVisibility(View.INVISIBLE);
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251 v.setClickable(false);
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253 v.setVisibility(View.VISIBLE);
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254 if ( baseDirName.equals( file.getAbsolutePath() ) ) {
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255 v.setSelected(true);
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257 v.setSelected(false);
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258 v.setClickable(true);
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259 v.setOnClickListener( new ChangeBaseDirectory(file.getAbsolutePath()));
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263 return convertView;
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267 private class ChangeBaseDirectory implements View.OnClickListener {
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269 private final String dirname;
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271 ChangeBaseDirectory ( String dirname ) {
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272 this.dirname = dirname;
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276 public void onClick(View v) {
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277 if ( v.isSelected() == false ) {
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278 SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(SimpleFileBrowser.this);
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279 baseDirName = dirname;
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280 pref.edit().putString(baseDirPrefKey, dirname).apply();
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281 SimpleFileBrowser.this.getDir(new File(dirname));
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