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/* -*- 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"
#include "MailNewsTypes2.idl"

interface nsIMsgWindow;
interface nsIMsgFolder;
interface nsIMimeHeaders;

typedef long EDisposeType;
typedef long ReceiptHdrType;
typedef long MDNIncorporateType;

%{C++
#define NS_MSGMDNGENERATOR_CONTRACTID \
  "@mozilla.org/messenger-mdn/generator;1"

#define NS_MSGMDNGENERATOR_CID                    \
{ /* ec917b13-8f73-4d4d-9146-d7f7aafe9076 */      \
 0xec917b13, 0x8f73, 0x4d4d,                      \
 { 0x91, 0x46, 0xd7, 0xf7, 0xaa, 0xfe, 0x90, 0x76 }}
%}

[scriptable, uuid(440EA3DE-DACA-4886-9875-84E6CD7D7927)]
interface nsIMsgMdnGenerator : nsISupports
{
    const EDisposeType eDisplayed = 0;
    const EDisposeType eDispatched = 1;
    const EDisposeType eProcessed = 2;
    const EDisposeType eDeleted = 3;
    const EDisposeType eDenied = 4;
    const EDisposeType eFailed = 5;
    
    const ReceiptHdrType eDntType = 0;
    const ReceiptHdrType eRrtType = 1;
    const ReceiptHdrType eDntRrtType = 2;
    
    const MDNIncorporateType eIncorporateInbox = 0;
    const MDNIncorporateType eIncorporateSent = 1;
    
    
    /**
     * Prepare the sending of a mdn reply, and checks the prefs whether a
     * reply should be send. Might send the message automatically if the
     * prefs say it should.
     * @param eType   One of EDisposeType above, indicating the action that led
     *                to sending the mdn reply
     * @param aWindow The window the message was displayed in, acting as parent
     *                for any (error) dialogs
     * @param folder  The folder the message is in
     * @param key     the message key
     * @param headers the message headers
     * @param autoAction  true if the request action led to sending the mdn
     *                reply was an automatic action, false if it was user initiated
     * @returns true if the user needs to be asked for permission
     *          false in other cases (whether the message was sent or denied)
     */
    boolean process(in EDisposeType eType, in nsIMsgWindow aWindow,
                    in nsIMsgFolder folder, in nsMsgKey key, 
                    in nsIMimeHeaders headers, in boolean autoAction);

    /**
     * Must be called when the user was asked for permission and agreed to
     * sending the mdn reply. 
     * May only be called when |process| returned |true|. Behaviour is
     * unspecified in other cases
     */
    void userAgreed();

    /**
     * Must be called when the user was asked for permission and declined to
     * send the mdn reply. 
     * Will mark the message so that the user won't be asked next time.
     * May only be called when |process| returned |true|. Behaviour is
     * unspecified in other cases.
     */
    void userDeclined();
};