/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsISupports.idl"

interface nsIFile;
interface nsIURI;
interface nsIDOMWindow;
interface nsISimpleEnumerator;

[scriptable, function, uuid(0d79adad-b244-49A5-9997-2a8cad93fc44)]
interface nsIFilePickerShownCallback : nsISupports
{
 /**
  * Callback which is called when a filepicker is shown and a result
  * is returned.
  *
  * @param aResult One of returnOK, returnCancel, or returnReplace
  */
  void done(in short aResult);
};

[scriptable, uuid(9840d564-42c8-4d78-9a4d-71002343c918)]
interface nsIFilePicker : nsISupports
{
  const short modeOpen        = 0;              // Load a file or directory
  const short modeSave        = 1;              // Save a file or directory
  const short modeGetFolder   = 2;              // Select a folder/directory
  const short modeOpenMultiple= 3;              // Load multiple files

  const short returnOK        = 0;              // User hit Ok, process selection
  const short returnCancel    = 1;              // User hit cancel, ignore selection
  const short returnReplace   = 2;              // User acknowledged file already exists so ok to replace, process selection

  const long filterAll        = 0x001;          // *.*
  const long filterHTML       = 0x002;          // *.html; *.htm
  const long filterText       = 0x004;          // *.txt
  const long filterImages     = 0x008;          // *.jpe; *.jpg; *.jpeg; *.gif;
                                                // *.png; *.bmp; *.ico; *.svg;
                                                // *.svgz; *.tif; *.tiff; *.ai;
                                                // *.drw; *.pct; *.psp; *.xcf;
                                                // *.psd; *.raw
  const long filterXML        = 0x010;          // *.xml
  const long filterXUL        = 0x020;          // *.xul
  const long filterApps       = 0x040;          // Applications (per-platform implementation)
  const long filterAllowURLs  = 0x080;          // Allow URLs
  const long filterAudio      = 0x100;          // *.aac; *.aif; *.flac; *.iff;
                                                // *.m4a; *.m4b; *.mid; *.midi;
                                                // *.mp3; *.mpa; *.mpc; *.oga;
                                                // *.ogg; *.ra; *.ram; *.snd;
                                                // *.wav; *.wma
  const long filterVideo      = 0x200;          // *.avi; *.divx; *.flv; *.m4v;
                                                // *.mkv; *.mov; *.mp4; *.mpeg;
                                                // *.mpg; *.ogm; *.ogv; *.ogx;
                                                // *.rm; *.rmvb; *.smil; *.webm;
                                                // *.wmv; *.xvid

 /**
  * Initialize the file picker widget.  The file picker is not valid until this
  * method is called.
  *
  * @param      parent   nsIDOMWindow parent.  This dialog will be dependent
  *                      on this parent. parent must be non-null.
  * @param      title    The title for the file widget
  * @param      mode     load, save, or get folder
  *
  */
  void init(in nsIDOMWindow parent, in AString title, in short mode);

 /**
  * Append to the  filter list with things from the predefined list
  *
  * @param      filters  mask of filters i.e. (filterAll | filterHTML)
  *
  */
  void appendFilters(in long filterMask);

 /**
  * Add a filter
  *
  * @param      title    name of the filter
  * @param      filter   extensions to filter -- semicolon and space separated
  *
  */
  void appendFilter(in AString title,
                    in AString filter);

 /**
  * The filename that should be suggested to the user as a default. This should
  * include the extension.
  *
  * @throws NS_ERROR_FAILURE on attempts to get
  */
  attribute AString defaultString;

 /**
  * The extension that should be associated with files of the type we
  * want to work with.  On some platforms, this extension will be
  * automatically appended to filenames the user enters, if needed.  
  */
  attribute AString defaultExtension;
  
 /**
  * The filter which is currently selected in the File Picker dialog
  *
  * @return Returns the index (0 based) of the selected filter in the filter list. 
  */
  attribute long filterIndex;

 /**
  * Set the directory that the file open/save dialog initially displays
  *
  * @param      displayDirectory  the name of the directory
  *
  */
  attribute nsIFile displayDirectory;


 /**
  * Get the nsIFile for the file or directory.
  *
  * @return Returns the file currently selected
  */
  readonly attribute nsIFile file;

 /**
  * Get the nsIURI for the file or directory.
  *
  * @return Returns the file currently selected
  */
  readonly attribute nsIURI fileURL;

 /**
  * Get the enumerator for the selected files
  * only works in the modeOpenMultiple mode
  *
  * @return Returns the files currently selected
  */
  readonly attribute nsISimpleEnumerator files;

 /**
  * Get the DOM File for the file.
  *
  * @return Returns the file currently selected as File
  */
  readonly attribute nsISupports domfile;

 /**
  * Get the enumerator for the selected files
  * only works in the modeOpenMultiple mode
  *
  * @return Returns the files currently selected as Files
  */
  readonly attribute nsISimpleEnumerator domfiles;

 /**
  * Controls whether the chosen file(s) should be added to the system's recent
  * documents list. This attribute will be ignored if the system has no "Recent
  * Docs" concept, or if the application is in private browsing mode (in which
  * case the file will not be added). Defaults to true.
  */
  attribute boolean addToRecentDocs;

 /**
  * Show File Dialog. The dialog is displayed modally.
  *
  * @return returnOK if the user selects OK, returnCancel if the user selects cancel
  *
  */
  [deprecated] short show();


 /**
  * Opens the file dialog asynchrounously.
  * The passed in object's done method will be called upon completion.
  */
  void open(in nsIFilePickerShownCallback aFilePickerShownCallback);

 /**
  * The picker's mode, as set by the 'mode' argument passed to init()
  * (one of the modeOpen et. al. constants specified above).
  */
  readonly attribute short mode;
};