/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2007-2010, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |    http://scala-lang.org/               **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */



package scala.swing

import java.io.File
import javax.swing._
import javax.swing.filechooser._

object FileChooser {
  /**
   * The result of a file dialog. The precise meaning of the <code>Approve</code>
   * result depends on the specific dialog type. Could be "save" or "open" for 
   * example.
   */
  object Result extends Enumeration {
    val Cancel = Value(JFileChooser.CANCEL_OPTION)
    val Approve = Value(JFileChooser.APPROVE_OPTION)
    val Error = Value(JFileChooser.ERROR_OPTION)
  }
  
  /**
   * The kind of elements a user can select in a file dialog.
   */
  object SelectionMode extends Enumeration {
    val FilesOnly = Value(JFileChooser.FILES_ONLY)
    val DirectoriesOnly = Value(JFileChooser.DIRECTORIES_ONLY)
    val FilesAndDirectories = Value(JFileChooser.FILES_AND_DIRECTORIES)
  }
}

/**
 * Used to open file dialogs.
 *
 * @see javax.swing.JFileChooser
 */
class FileChooser(dir: File) {
  import FileChooser._
  lazy val peer: JFileChooser = new JFileChooser(dir)
  
  def this() = this(null)
  
  import Swing._
  def showOpenDialog(over: Component): Result.Value = Result(peer.showOpenDialog(nullPeer(over)))
  def showSaveDialog(over: Component): Result.Value = Result(peer.showSaveDialog(nullPeer(over)))
  def showDialog(over: Component, approveText: String): Result.Value = Result(peer.showDialog(nullPeer(over), approveText))
  
  def controlButtonsAreShown: Boolean = peer.getControlButtonsAreShown
  def controlButtonsAreShown_=(b: Boolean) { peer.setControlButtonsAreShown(b) }
  
  def title: String = peer.getDialogTitle
  def title_=(t: String) { peer.setDialogTitle(t) }
  
  def accessory: Component = UIElement.cachedWrapper[Component](peer.getAccessory)
  def accessory_=(c: Component) { peer.setAccessory(c.peer) }
  
  def fileHidingEnabled: Boolean = peer.isFileHidingEnabled
  def fileHidingEnabled_=(b: Boolean) { peer.setFileHidingEnabled(b) }
  def fileSelectionMode: SelectionMode.Value = SelectionMode(peer.getFileSelectionMode)
  def fileSelectionMode_=(s: SelectionMode.Value) { peer.setFileSelectionMode(s.id) }
  def fileFilter: FileFilter = peer.getFileFilter
  def fileFilter_=(f: FileFilter) { peer.setFileFilter(f) }
    
  def selectedFile: File = peer.getSelectedFile
  def selectedFile_=(file: File) { peer.setSelectedFile(file) }
  def selectedFiles: Seq[File] = peer.getSelectedFiles
  def selectedFiles_=(files: File*) { peer.setSelectedFiles(files.toArray) }
  
  def multiSelectionEnabled: Boolean = peer.isMultiSelectionEnabled  
  def multiSelectionEnabled_=(b: Boolean) { peer.setMultiSelectionEnabled(b) }
  
  def iconFor(f: File) = peer.getIcon(f)
  def descriptionFor(f: File) = peer.getDescription(f)
  def nameFor(f: File) = peer.getName(f)
  def typeDescriptionFor(f: File) = peer.getTypeDescription(f)
  def traversable(f: File) = peer.isTraversable(f)
  
  def acceptAllFileFilter = peer.getAcceptAllFileFilter
  
  /*peer.addPropertyChangeListener(new java.beans.PropertyChangeListener {
    def propertyChange(e: java.beans.PropertyChangeEvent) {
      import JFileChooser._
      e.getPropertyName match {
        case APPROVE_BUTTON_TEXT_CHANGED_PROPERTY =>
        case ACCESSORY_CHANGED_PROPERTY =>
        case APPROVE_BUTTON_MNEMONIC_CHANGED_PROPERTY =>
        case APPROVE_BUTTON_TEXT_CHANGED_PROPERTY =>
        case APPROVE_BUTTON_TOOL_TIP_TEXT_CHANGED_PROPERTY =>
        case CHOOSABLE_FILE_FILTER_CHANGED_PROPERTY =>
        case CONTROL_BUTTONS_ARE_SHOWN_CHANGED_PROPERTY =>
        case DIALOG_TITLE_CHANGED_PROPERTY =>
        case DIALOG_TYPE_CHANGED_PROPERTY =>
        case DIRECTORY_CHANGED_PROPERTY =>
        case FILE_FILTER_CHANGED_PROPERTY =>
        case FILE_HIDING_CHANGED_PROPERTY =>
        case FILE_SELECTION_MODE_CHANGED_PROPERTY =>
        case FILE_SYSTEM_VIEW_CHANGED_PROPERTY =>
        case FILE_VIEW_CHANGED_PROPERTY =>
        case MULTI_SELECTION_ENABLED_CHANGED_PROPERTY =>
        case SELECTED_FILE_CHANGED_PROPERTY =>
        case SELECTED_FILES_CHANGED_PROPERTY =>
        case _ => 
      }
    }
  })*/
}
