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 android.app.AlertDialog;
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12 import android.app.Dialog;
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13 import android.content.DialogInterface;
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14 import android.content.Intent;
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15 import android.content.SharedPreferences;
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16 import android.content.res.Resources;
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17 import android.net.Uri;
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18 import android.os.Bundle;
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19 import android.os.Environment;
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20 import android.preference.PreferenceManager;
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21 import android.view.View;
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22 import android.view.ViewGroup;
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23 import android.widget.BaseAdapter;
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24 import android.widget.ImageView;
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25 import android.widget.ListView;
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26 import android.widget.TextView;
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28 import com.actionbarsherlock.app.SherlockListActivity;
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30 public class SimpleFileBrowser extends SherlockListActivity {
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32 private List<File> path = null;
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33 private final static File root = new File("/");
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35 private File previousDirectory = root;
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37 private String baseDirPrefKey;
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38 private String baseDirName;
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40 private boolean showOnlyOrkFiles;
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42 private static final OrkFileFilter filter = new OrkFileFilter();
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43 private static final Comparator<String> sorter = new AlphanumComparator();
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45 /** Called when the activity is first created. */
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47 public void onCreate(Bundle savedInstanceState) {
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48 super.onCreate(savedInstanceState);
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49 setContentView(R.layout.simplefilebrowser);
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51 Resources resources = this.getResources();
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52 baseDirPrefKey = resources.getString(R.string.PreferenceFileBrowserBaseDirectory);
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53 SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(this);
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55 String showOnlyOrkFilesKey = resources.getString(R.string.PreferenceShowOnlyOrkFiles);
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56 showOnlyOrkFiles = pref.getBoolean(showOnlyOrkFilesKey, false);
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58 baseDirName = pref.getString(baseDirPrefKey, Environment.getExternalStorageDirectory().getAbsolutePath() );
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59 getDir( new File(baseDirName) );
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62 private static class OrkFileFilter implements FileFilter {
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65 * @see java.io.FileFilter#accept(java.io.File)
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68 public boolean accept(File arg0) {
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69 if ( arg0.isDirectory() ) {
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75 public boolean isOrk(File arg0) {
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76 if ( arg0.getName().endsWith(".ork") ) {
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83 private static class FileComparator implements Comparator<File> {
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86 * @see java.util.Comparator#compare(java.lang.Object, java.lang.Object)
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89 public int compare(File arg0, File arg1) {
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90 // Directories come before files, otherwise alpha.
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91 if ( arg0.isDirectory() ) {
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92 if ( ! arg1.isDirectory() ) {
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95 return sorter.compare(arg0.getName(), arg1.getName());
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98 // arg0 is not a directory.
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99 if ( arg1.isDirectory() ) {
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103 return sorter.compare(arg0.getName(), arg1.getName());
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108 private void getDir(final File dirPath) {
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110 // A little sanity check. It could be possible the directory saved in the preference
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111 // is no longer mounted, is not a directory (any more), or cannot be read.
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112 // if any of these are the case, we display a little dialog, then revert to the
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113 // previousDirectory.
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114 if ( !dirPath.exists() || !dirPath.isDirectory() || !dirPath.canRead() ) {
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116 AlertDialog.Builder builder = new AlertDialog.Builder(this);
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117 builder.setTitle("Unable to open directory " + dirPath.getAbsolutePath() );
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118 builder.setCancelable(true);
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119 builder.setOnCancelListener( new Dialog.OnCancelListener() {
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122 public void onCancel(DialogInterface arg0) {
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123 if ( root.getAbsolutePath().equals(dirPath.getAbsolutePath()) ) {
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124 SimpleFileBrowser.this.finish();
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126 SimpleFileBrowser.this.getDir( previousDirectory );
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135 previousDirectory = dirPath;
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137 setTitle(dirPath.getAbsolutePath());
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138 path = new ArrayList<File>();
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140 File[] files = dirPath.listFiles((showOnlyOrkFiles) ? filter : null );
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142 boolean hasUp = false;
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143 if ( !dirPath.getAbsolutePath().equals("/")) {
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145 path.add( dirPath.getParentFile() );
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149 Arrays.sort(files, new FileComparator() );
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150 for( File file : files ) {
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154 DirectoryList fileList = new DirectoryList(hasUp, path);
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155 setListAdapter(fileList);
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160 protected void onListItemClick(ListView l, View v, int position, long id) {
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161 final File file = path.get(position);
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162 if (file.isDirectory()) {
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163 if (file.canRead())
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166 new AlertDialog.Builder(this).setIcon(R.drawable.or_launcher)
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167 .setTitle("[" + file.getName() + "] folder can't be read!")
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168 .setPositiveButton("OK",
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169 new DialogInterface.OnClickListener() {
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171 public void onClick(DialogInterface dialog, int which) {
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172 // TODO Auto-generated method stub
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179 Intent resultData = new Intent(Intent.ACTION_VIEW);
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180 resultData.setData( Uri.fromFile(file) );
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181 setResult(RESULT_OK,resultData);
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186 private class DirectoryList extends BaseAdapter {
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188 List<File> listing;
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191 DirectoryList( boolean hasUp ,List<File> listing ) {
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192 this.listing = listing;
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193 this.hasUp = hasUp;
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197 public int getCount() {
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198 return listing.size();
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202 public Object getItem(int arg0) {
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203 return listing.get(arg0);
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207 public long getItemId(int position) {
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212 public View getView(int position, View convertView, ViewGroup parent) {
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213 if ( convertView == null ) {
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214 convertView = getLayoutInflater().inflate(R.layout.filebrowser_list_item, parent, false);
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217 File file = (File) getItem(position);
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219 // Set the name of the field.
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221 String fileName = file.getName();
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223 if (position == 0 ) {
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224 fileName = root.getAbsolutePath();
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225 } else if (position == 1) {
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230 ((TextView) convertView.findViewById(R.id.filebrowser_list_item_name)).setText(fileName);
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233 // Set the "type icon" directory, ork file, or none.
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235 ImageView v = (ImageView) (convertView.findViewById(R.id.filebrowser_list_item_typeicon));
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236 if ( file.isDirectory() ) {
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237 v.setVisibility(View.VISIBLE);
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238 v.setImageResource(R.drawable.ic_directory);
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239 } else if ( filter.isOrk( file ) ) {
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240 v.setVisibility(View.VISIBLE);
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241 v.setImageResource(R.drawable.or_launcher);
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243 v.setVisibility(View.INVISIBLE);
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247 // Set the "favorite directory" thing.
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249 ImageView v = (ImageView) (convertView.findViewById(R.id.filebrowser_list_item_homeicon));
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250 if ( file.isDirectory() && hasUp && position > 1 ) {
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251 v.setVisibility(View.VISIBLE);
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252 if ( baseDirName.equals( file.getAbsolutePath() ) ) {
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253 v.setSelected(true);
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255 v.setSelected(false);
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256 v.setClickable(true);
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257 v.setOnClickListener( new ChangeBaseDirectory(file.getAbsolutePath()));
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260 v.setVisibility(View.INVISIBLE);
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261 v.setClickable(false);
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264 return convertView;
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268 private class ChangeBaseDirectory implements View.OnClickListener {
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270 private final String dirname;
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272 ChangeBaseDirectory ( String dirname ) {
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273 this.dirname = dirname;
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277 public void onClick(View v) {
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278 if ( v.isSelected() == false ) {
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279 SharedPreferences pref = PreferenceManager.getDefaultSharedPreferences(SimpleFileBrowser.this);
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280 baseDirName = dirname;
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281 pref.edit().putString(baseDirPrefKey, dirname).apply();
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282 ((BaseAdapter)SimpleFileBrowser.this.getListAdapter()).notifyDataSetChanged();
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