FileChooser handling directories in the fileName field

[Matthew B. <mat...@la...>]

I found your project today and started working with it.  FileChooser to 
be a great improvement over JFileChooser.  I found that typing 
directories (especially absolute paths) into the file area did not work 
well.  Even though there is a directory combo box, I think users are 
used to being able to navigate from here.

I made these changes for my own use.  Please feel free to use if you 
find them useful.

    private void acceptFileSlot() {
        File f = getSelectedFile();
        if (f != null ) {
            if (f.isDirectory()) {
                directory.setSelectedItem(f);
+                fileName.setSelectedItem("");   // clear typed 
directory from fileName after accepting
            }
            else {
                // store selected files...
                storeLastVisitedFiles(f);
                // notify listeners a File has been selected..
                firePropertyChange(FILE_ACCEPTED, null, f);
            }
        }
    }


    public File[] getSelectedFiles() {
        Object selectedItem = fileName.getSelectedItem();
        if (selectedItem == null || selectedItem.equals("")) return new 
File[0];
        // it might be a file selected from history...
        // this cannot be a string since otherwise "the current 
directory" will be added to..
        if (selectedItem instanceof File) return new 
File[]{(File)selectedItem};

        String selectedString = ((String)selectedItem).trim();
        if (selectedString.charAt(0) != '\"')
        {
+            File f = getFile((File)directory.getSelectedItem(), 
selectedString);
+            return f == null ? new File[0] : new File[] {f};
        }
        ArrayList fileNames = new ArrayList();
        File dir = (File)directory.getSelectedItem();
        int indexOfQuote = -1;
        while ( (indexOfQuote = selectedString.indexOf('\"', 
indexOfQuote +1)) != -1) {
            int endIndexOfQuote = selectedString.indexOf('\"', 
indexOfQuote +1);
+            File f = getFile(dir, 
selectedString.substring(indexOfQuote+1, endIndexOfQuote));
+            if (null != f)
+                fileNames.add(f);
            indexOfQuote = endIndexOfQuote;
            if (indexOfQuote < 0) break;
        }
        return (File[]) fileNames.toArray(new File[0]);
    }

+    static boolean fileMustExist = true;
+
+    protected static File getFile(File dir, String path)
+    {
+        File f = new File(path);
+        if (!(f.isAbsolute() || path.startsWith("/") || 
path.startsWith(File.separator)))
+            f = new File(dir,path);
+        f = getFile(f);
+        if (fileMustExist && !f.exists())
+            return null;
+        // remove .. if any from path
+        try { f = f.getCanonicalFile(); } catch (IOException x) {}
+        return f;
+    }