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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2001
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

/* Doc interface here */

#include "nsISupports.idl"
#include "nsIWebBrowserPrint.idl"
#include "nsIWebProgressListener.idl"
#include "nsIPrintProgressParams.idl"
#include "nsIPrintSettings.idl"
#include "nsIObserver.idl"

interface nsIDOMWindow;

[scriptable, uuid(75D1553D-63BF-4b5d-A8F7-E4E4CAC21BA4)]
interface nsIPrintingPromptService : nsISupports
{
   /**
   *  This service enables embedders to implement their own Print and Progress Dialogs.
   *  Each platform has a "base" or "basckstop" implementation of the service. The 
   *  service is automatically registered at start up.
   *
   *  Historically, platform toolkits with native dialogs have implemented them in the GFX layer
   *  Usually they were displayed when a new DeviceContextSpec specific to that platform
   *  was created.
   *
   *  Windows: The GFX layer no longers supports default toolkit behavior for displaying the 
   *           native Print Dialog.
   *           If an embedder implemented service returns any error code (other than NS_ERROR_ABORT)
   *           printing will terminate.
   *
   *           Returning NS_OK assumes that the PrintSettings object was correctly filled in and
   *           if it does not have valid fields for printer name, etc. it may also terminate.
   *
   *           Defaults for platform service:           
   *             showPrintDialog       - displays a native dialog
   *             showPageSetup         - displays a XUL dialog
   *             showProgress          - displays a XUL dialog
   *             showPrinterProperties - n/a
   *
   *           Summary for Windows Embedders:
   *             Stated once again: There is no "fallback" native platform support in GFX for the
   *             displaying of the native print dialog. The current default implementation for Windows
   *             display a native print dialog but a XUL-based progress dialog.
   *             If you wish to have a native progress dialog on Windows you will have to create and 
   *             register your own service.
   *  
   *             Note: The Windows version Mozilla implements this service which is 
   *                   automatically built and registered for you. You can use it as an example.
   *                   It is located at "mozilla/embedding/components/printingui/src/win". That service
   *                   is capable of displaying a native print dialog and a XUL progress dialog.
   *
   *             To fly your own dialog you may:
   *
   *              1) Implement this service to display at least the Print Dialog and a Print Progress Dialog
   *                 or you may implement just one of the dialogs and pass back NS_ERROR_NOT_IMPLEMENTED
   *                 for any of the others.
   *
   *              2) For the Print Dialog:
   *                 You may stub out this service by having all the methods return NS_ERROR_NOT_IMPLEMENTED.
   *                 You can then fly you own dialog and then properly fill in the PrintSettings object
   *                 before calling nsIWebBrowserPrint's Print method. If you stub out this service  
   *                 you MUST set "printSilent" to true, if you do not, Printing will terminate and an 
   *                 error dialog will be displayed.
   *
   *  Mac: The GFX layer still supports default toolkit behavior for displaying the Print Dialog.
   *       If an embedder implemented service returns NS_ERROR_NOT_IMPLEMENTED for "showPrintDialog"
   *       The toolkit will display the native print dialog.
   *
   *       Defaults for platform service:           
   *       Mac OS9: showPrintDialog       - displays a native dialog
   *                showPageSetup         - displays a native dialog
   *                showProgress          - displays a XUL dialog
   *                showPrinterProperties - n/a
   *                
   *       Mac OSX: showPrintDialog       - displays a native dialog
   *                showPageSetup         - displays a native dialog
   *                showProgress          - not implemented (provided by OS)
   *                showPrinterProperties - n/a
   *                
   *  GTK: There are no native dialog for GTK.
   *
   *       Defaults for platform service:           
   *         showPrintDialog       - displays a XUL dialog
   *         showPageSetup         - displays a XUL dialog
   *         showProgress          - displays a XUL dialog
   *         showPrinterProperties - displays a XUL dialog
   *              
   *  OS2: 
   *
   *       Defaults for platform service:           
   *         showPrintDialog       - displays a XUL dialog
   *         showPageSetup         - displays a XUL dialog
   *         showProgress          - displays a XUL dialog
   *         showPrinterProperties - displays a native dialog
   *              
   *
   */
 


  /**
   *  Show the Print Dialog 
   *
   *  @param parent - a DOM windows the dialog will be parented to (required)
   *  @param webBrowserPrint - represents the document to be printed (required)
   *  @param printSettings - PrintSettings for print "job" (required)
   *
   */
  void showPrintDialog(in nsIDOMWindow parent,
                       in nsIWebBrowserPrint webBrowserPrint,
                       in nsIPrintSettings printSettings);

  /**
   *  Shows the print progress dialog
   *
   *  @param parent - a DOM windows the dialog will be parented to
   *  @param webBrowserPrint - represents the document to be printed
   *  @param printSettings - PrintSettings for print "job"
   *  @param openDialogObserver - an observer that will be notifed when the dialog is opened
   *  @param isForPrinting - true - for printing, false for print preview
   *  @param webProgressListener - additional listener can be registered for progress notifications
   *  @param printProgressParams - parameter object for passing progress state
   *  @param notifyOnOpen - this indicates that the observer will be notified when the progress
   *                        dialog has been opened. If false is returned it means the observer
   *                        (usually the caller) shouldn't wait
   *                        For Print Preview Progress there is intermediate progress
   */
  void showProgress(in nsIDOMWindow parent,
                    in nsIWebBrowserPrint webBrowserPrint,
                    in nsIPrintSettings printSettings,
                    in nsIObserver openDialogObserver,
                    in boolean isForPrinting,
                    out nsIWebProgressListener webProgressListener,
                    out nsIPrintProgressParams printProgressParams,
                    out boolean notifyOnOpen);

  /**
   *  Shows the print progress dialog
   *
   *  @param parent - a DOM windows the dialog will be parented to (required)
   *  @param printSettings - PrintSettings for page setup (required)
   *  @param aObs - An observer to know if the contents of the Print Settings 
   *                object has changed while the dialog is being shown. 
   *                For example, some platforms may implement an "Apply" button (not required)
   */
  void showPageSetup(in nsIDOMWindow parent,
                     in nsIPrintSettings printSettings,
                     in nsIObserver aObs);

  /**
   *  Sometimes platforms need to bring up a special properties dialog for showing
   *  print specific properties. Although the PrintSettings has a place to set the 
   *  printer name, here is is an argument to be clear as to what printer is being
   *  asked to have the properties set for it. The Printer name in the PS is ignored.
   *
   *  @param parent - a DOM windows the dialog will be parented to (required)
   *  @param printerName - name of printer (required)
   *  @param printSettings - PrintSettings for page setup (required)
   */
  void showPrinterProperties(in nsIDOMWindow parent,
                             in wstring printerName,
                             in nsIPrintSettings printSettings);

};

%{C++
// {260FEDC5-524D-4aa6-9A41-E829F4C78B92}
#define NS_PRINTINGPROMPTSERVICE_IID \
 {0x260fedc5, 0x524d, 0x4aa6, { 0x9a, 0x41, 0xe8, 0x29, 0xf4, 0xc7, 0x8b, 0x92}}
%}