src/net/pterodactylus/jsite/gui/FileManager.java

   1 /*
   2  * jSite2 - FileManager.java -
   3  * Copyright © 2008 David Roden
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 package net.pterodactylus.jsite.gui;
  21
  22 import java.awt.BorderLayout;
  23 import java.beans.PropertyChangeEvent;
  24 import java.beans.PropertyChangeListener;
  25 import java.io.File;
  26 import java.util.ArrayList;
  27 import java.util.List;
  28 import java.util.logging.Level;
  29 import java.util.logging.Logger;
  30
  31 import javax.swing.JDialog;
  32 import javax.swing.JFrame;
  33 import javax.swing.JPanel;
  34 import javax.swing.JScrollPane;
  35 import javax.swing.JTree;
  36 import javax.swing.event.TreeModelListener;
  37 import javax.swing.tree.TreeModel;
  38 import javax.swing.tree.TreePath;
  39
  40 import net.pterodactylus.jsite.i18n.I18n;
  41 import net.pterodactylus.jsite.i18n.I18nable;
  42 import net.pterodactylus.jsite.project.Entry;
  43 import net.pterodactylus.jsite.project.Project;
  44 import net.pterodactylus.util.data.Node;
  45 import net.pterodactylus.util.data.Tree;
  46 import net.pterodactylus.util.logging.Logging;
  47 import net.pterodactylus.util.swing.SwingUtils;
  48
  49 /**
  50  * Manages physical and virtual files in a project.
  51  *
  52  * @author David ‘Bombe’ Roden &lt;bombe@freenetproject.org&gt;
  53  */
  54 public class FileManager extends JDialog implements I18nable {
  55
  56         /** Logger. */
  57         private static final Logger logger = Logging.getLogger(FileManager.class.getName());
  58
  59         /** The project whose files to manage. */
  60         private final Project project;
  61
  62         /** The tree model for the project files. */
  63         private final FileTreeModel fileTreeModel;
  64
  65         /** The tree that shows the files. */
  66         private JTree fileTree;
  67
  68         /**
  69          * Creates a new file manager.
  70          *
  71          * @param parent
  72          *            The parent frame
  73          * @param project
  74          *            The project whose files to manage
  75          */
  76         public FileManager(JFrame parent, Project project) {
  77                 super(parent, I18n.get("fileManager.title", project.getName()), true);
  78                 logger.log(Level.FINEST, "project: " + project);
  79                 this.project = project;
  80                 fileTreeModel = new FileTreeModel();
  81                 initComponents();
  82                 SwingUtils.repackCentered(this);
  83         }
  84
  85         //
  86         // PRIVATE ACTIONS
  87         //
  88
  89         /**
  90          * Initializes all components.
  91          */
  92         private void initComponents() {
  93                 JPanel contentPanel = new JPanel(new BorderLayout(12, 12));
  94
  95                 fileTree = new JTree(fileTreeModel);
  96                 fileTree.setShowsRootHandles(false);
  97                 contentPanel.add(new JScrollPane(fileTree), BorderLayout.CENTER);
  98
  99                 setContentPane(contentPanel);
 100         }
 101
 102         //
 103         // INTERFACE I18nable
 104         //
 105
 106         /**
 107          * {@inheritDoc}
 108          */
 109         public void updateI18n() {
 110                 setTitle(I18n.get("fileManager.title", project.getName()));
 111         }
 112
 113         /**
 114          * Model for the tree of files.
 115          *
 116          * @author David ‘Bombe’ Roden &lt;bombe@freenetproject.org&gt;
 117          */
 118         private class FileTreeModel implements TreeModel, PropertyChangeListener {
 119
 120                 /** Tree model listeners. */
 121                 private final List<TreeModelListener> treeModelListeners = new ArrayList<TreeModelListener>();
 122
 123                 /** The tree of files. */
 124                 private final Tree<FileTreePath> fileTreePathTree = new Tree<FileTreePath>();
 125
 126                 /**
 127                  * Creates a new file tree model.
 128                  */
 129                 FileTreeModel() {
 130                         buildTree();
 131                 }
 132
 133                 //
 134                 // EVENT MANAGEMENT
 135                 //
 136
 137                 /**
 138                  * {@inheritDoc}
 139                  */
 140                 public void addTreeModelListener(TreeModelListener treeModelListener) {
 141                         treeModelListeners.add(treeModelListener);
 142                 }
 143
 144                 /**
 145                  * {@inheritDoc}
 146                  */
 147                 public void removeTreeModelListener(TreeModelListener treeModelListener) {
 148                         treeModelListeners.remove(treeModelListener);
 149                 }
 150
 151                 //
 152                 // ACCESSORS
 153                 //
 154
 155                 /**
 156                  * {@inheritDoc}
 157                  */
 158                 @SuppressWarnings("synthetic-access")
 159                 public Object getChild(Object parent, int index) {
 160                         logger.log(Level.FINEST, "getChild(" + parent + ", " + index + ")");
 161                         Node<FileTreePath> parentNode = findNode(parent);
 162                         if (parentNode != null) {
 163                                 return parentNode.getChild(index).getElement();
 164                         }
 165                         return null;
 166                 }
 167
 168                 /**
 169                  * {@inheritDoc}
 170                  */
 171                 @SuppressWarnings("synthetic-access")
 172                 public int getChildCount(Object parent) {
 173                         logger.log(Level.FINEST, "getChildCount(" + parent + ")");
 174                         Node<FileTreePath> parentNode = findNode(parent);
 175                         if (parentNode != null) {
 176                                 logger.log(Level.FINEST, "getChildCount(" + parent + "): " + parentNode.size());
 177                                 return parentNode.size();
 178                         }
 179                         return -1;
 180                 }
 181
 182                 /**
 183                  * {@inheritDoc}
 184                  */
 185                 @SuppressWarnings("synthetic-access")
 186                 public int getIndexOfChild(Object parent, Object child) {
 187                         logger.log(Level.FINEST, "getIndexOfChild(" + parent + ", " + child + ")");
 188                         Node<FileTreePath> parentNode = findNode(parent);
 189                         if (parentNode != null) {
 190                                 return parentNode.getIndexOfChild((FileTreePath) child);
 191                         }
 192                         return -1;
 193                 }
 194
 195                 /**
 196                  * {@inheritDoc}
 197                  */
 198                 @SuppressWarnings("synthetic-access")
 199                 public Object getRoot() {
 200                         logger.log(Level.FINEST, "getRoot()");
 201                         return fileTreePathTree.getRootNode().getChild(0).getElement();
 202                 }
 203
 204                 /**
 205                  * {@inheritDoc}
 206                  */
 207                 @SuppressWarnings("synthetic-access")
 208                 public boolean isLeaf(Object node) {
 209                         logger.log(Level.FINEST, "isLeaf(" + node + ")");
 210                         Node<FileTreePath> parentNode = findNode(node);
 211                         if (parentNode != null) {
 212                                 return parentNode.size() == 0;
 213                         }
 214                         return true;
 215                 }
 216
 217                 //
 218                 // ACTIONS
 219                 //
 220
 221                 /**
 222                  * {@inheritDoc}
 223                  */
 224                 public void valueForPathChanged(TreePath path, Object newValue) {
 225                         /* TODO - implement */
 226                 }
 227
 228                 //
 229                 // PRIVATE METHODS
 230                 //
 231
 232                 /**
 233                  * Finds the node for the given object. This method is quite necessary
 234                  * because the element for the root node of the JTree is
 235                  * <code>null</code>
 236                  *
 237                  * @param node
 238                  *            The element whose node to return
 239                  * @return The node, or <code>null</code> if no node could be found
 240                  */
 241                 private Node<FileTreePath> findNode(Object node) {
 242                         if (node == null) {
 243                                 return fileTreePathTree.getRootNode().getChild(0);
 244                         }
 245                         return fileTreePathTree.getRootNode().getChild(0).findChild((FileTreePath) node);
 246                 }
 247
 248                 /**
 249                  * Builds the tree from the project’s file entries.
 250                  */
 251                 @SuppressWarnings("synthetic-access")
 252                 private void buildTree() {
 253                         Tree<String> pathTree = new Tree<String>();
 254                         Node<String> pathRootNode = pathTree.getRootNode().addChild(File.separator);
 255                         logger.log(Level.FINEST, "project: " + project);
 256                         buildTree(pathRootNode, project.getBasePathEntries());
 257                         buildTree(pathRootNode, project.getVirtualEntries());
 258                         /* now convert to a tree suitable for the JTree. */
 259                         Node<FileTreePath> fileTreePathRootNode = fileTreePathTree.getRootNode();
 260                         fileTreePathRootNode.removeAllChildren();
 261                         convertTree(File.separator, pathRootNode, fileTreePathRootNode.addChild(new FileTreePath(File.separator, project.getName())));
 262                         /* TODO  - now add entries to all file tree path tree nodes. */
 263                 }
 264
 265                 /**
 266                  * Traverses the tree of path nodes and converts all paths to
 267                  * {@link FileTreePath} objects, suitable for the JTree.
 268                  *
 269                  * @param completePath
 270                  *            The base path of the current root node
 271                  * @param pathRootNode
 272                  *            The root node of the path tree
 273                  * @param fileTreePathRootNode
 274                  *            The root node of the file tree path tree.
 275                  */
 276                 private void convertTree(String completePath, Node<String> pathRootNode, Node<FileTreePath> fileTreePathRootNode) {
 277                         for (Node<String> pathChild: pathRootNode) {
 278                                 String currentFilePath = completePath + pathChild.getElement();
 279                                 Node<FileTreePath> newNode = fileTreePathRootNode.addChild(new FileTreePath(currentFilePath));
 280                                 convertTree(currentFilePath, pathChild, newNode);
 281                         }
 282                         fileTreePathRootNode.sortChildren();
 283                 }
 284
 285                 /**
 286                  * Builds a tree matching the directory structure of the given entries.
 287                  *
 288                  * @param pathRootNode
 289                  *            The root node of the tree
 290                  * @param entries
 291                  *            The entries
 292                  */
 293                 private void buildTree(Node<String> pathRootNode, List<Entry> entries) {
 294                         for (Entry basePathEntry: entries) {
 295                                 String entryName = basePathEntry.getName();
 296                                 String[] directories = entryName.split("\\" + File.separator);
 297                                 Node<String> currentPathNode = pathRootNode;
 298                                 for (String directory: directories) {
 299                                         if (!currentPathNode.hasChild(directory)) {
 300                                                 currentPathNode = currentPathNode.addChild(directory);
 301                                         } else {
 302                                                 currentPathNode = currentPathNode.getChild(directory);
 303                                         }
 304                                 }
 305                         }
 306                 }
 307
 308                 //
 309                 // INTERFACE PropertyChangeListener
 310                 //
 311
 312                 /**
 313                  * {@inheritDoc}
 314                  */
 315                 public void propertyChange(PropertyChangeEvent propertyChangeEvent) {
 316                         if (propertyChangeEvent.getSource() instanceof Project) {
 317                                 if (propertyChangeEvent.getPropertyName().equals(Project.PROPERTY_BASE_PATH_ENTRIES)) {
 318                                         buildTree();
 319                                 }
 320                         }
 321                 }
 322
 323         }
 324
 325         private static class FileTreePath implements Comparable<FileTreePath> {
 326
 327                 private final String filePath;
 328                 private final String fileName;
 329                 private Entry fileEntry;
 330
 331                 public FileTreePath(String filePath) {
 332                         this(filePath, null);
 333                 }
 334
 335                 public FileTreePath(String filePath, String fileName) {
 336                         this.filePath = filePath;
 337                         if (fileName == null) {
 338                                 if (filePath.indexOf(File.separatorChar) != -1) {
 339                                         this.fileName = filePath.substring(filePath.lastIndexOf(File.separatorChar) + 1);
 340                                 } else {
 341                                         this.fileName = filePath;
 342                                 }
 343                         } else {
 344                                 this.fileName = fileName;
 345                         }
 346                 }
 347
 348                 /**
 349                  * Returns the complete file path.
 350                  *
 351                  * @return The file path
 352                  */
 353                 public String getFilePath() {
 354                         return filePath;
 355                 }
 356
 357                 /**
 358                  * Returns the file name, i.e. everything after the last
 359                  * {@link File#separatorChar}.
 360                  *
 361                  * @return The file name
 362                  */
 363                 public String getFileName() {
 364                         return fileName;
 365                 }
 366
 367                 /**
 368                  * Returns the file entry associated with this path, if any.
 369                  *
 370                  * @return The file entry associated with this path, or
 371                  *         <code>null</code> if this path denotes a directory
 372                  */
 373                 public Entry getFileEntry() {
 374                         return fileEntry;
 375                 }
 376
 377                 /**
 378                  * Sets the entry associated with this path.
 379                  *
 380                  * @param fileEntry
 381                  *            The entry
 382                  */
 383                 public void setFileEntry(Entry fileEntry) {
 384                         this.fileEntry = fileEntry;
 385                 }
 386
 387                 /**
 388                  * {@inheritDoc}
 389                  */
 390                 @Override
 391                 public boolean equals(Object object) {
 392                         if ((object == null) || !(object instanceof FileTreePath)) {
 393                                 return false;
 394                         }
 395                         FileTreePath fileTreePath = (FileTreePath) object;
 396                         return fileTreePath.filePath.equals(filePath);
 397                 }
 398
 399                 /**
 400                  * {@inheritDoc}
 401                  */
 402                 @Override
 403                 public int hashCode() {
 404                         return filePath.hashCode();
 405                 }
 406
 407                 /**
 408                  * {@inheritDoc}
 409                  */
 410                 @Override
 411                 public String toString() {
 412                         return fileName;
 413                 }
 414
 415                 //
 416                 // INTERFACE Comparable
 417                 //
 418
 419                 /**
 420                  * {@inheritDoc}
 421                  */
 422                 public int compareTo(FileTreePath otherFileTreePath) {
 423                         return filePath.compareTo(otherFileTreePath.filePath);
 424                 }
 425
 426         }
 427
 428 }