/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: NPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Netscape 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/NPL/
 *
 * 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) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 * 		Denis Issoupov <denis@macadamian.com>
 *
 * 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 NPL, 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 NPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsDragService.h"
#include "nsIServiceManager.h"
#include "nsWidget.h"
#include "nsISupportsPrimitives.h"
#include "nsXPIDLString.h"
#include "nsPrimitiveHelpers.h"
#include "nsReadableUtils.h"
#include "nsClipboard.h"
#include "nsMime.h"

#include <qapplication.h>
#include <qclipboard.h>

//----------------------------------------------------------
nsMimeStoreData::nsMimeStoreData(QCString& name, QByteArray& data)
{
  flavorName = name;
  flavorData = data;
}

nsMimeStoreData::nsMimeStoreData(const char* name,void* rawdata,PRInt32 rawlen)
{
  flavorName = name;
  flavorData.assign((char*)rawdata,(unsigned int)rawlen);
}

//----------------------------------------------------------
nsMimeStore::nsMimeStore()
{
  mMimeStore.setAutoDelete(TRUE);
}

nsMimeStore::~nsMimeStore()
{
}

const char* nsMimeStore::format(int n) const
{
  if (n >= (int)mMimeStore.count())
    return 0;

  // because of const
  QList<nsMimeStoreData> *pMimeStore = (QList<nsMimeStoreData>*)&mMimeStore;

  nsMimeStoreData* msd;
  msd = pMimeStore->at((unsigned int)n);
  return msd->flavorName;
}

QByteArray nsMimeStore::encodedData(const char* name) const
{
  QByteArray qba;

  // because of const
  QList<nsMimeStoreData> *pMimeStore = (QList<nsMimeStoreData>*)&mMimeStore;

  nsMimeStoreData* msd;
  for (msd = pMimeStore->first(); msd != 0; msd = pMimeStore->next()) {
    if (strcmp(name, msd->flavorName) == 0) {
      qba = msd->flavorData;
      return qba;
    }
  }
#ifdef NS_DEBUG
  printf("nsMimeStore::encodedData requested unknown %s\n", name);
#endif
  return qba;
}

PRBool nsMimeStore::ContainsFlavor(const char* name)
{
  for (nsMimeStoreData *msd = mMimeStore.first(); msd; msd = mMimeStore.next()) {
    if (!strcmp(name, msd->flavorName))
      return PR_TRUE;
  }
  return PR_FALSE;
}

PRBool nsMimeStore::AddFlavorData(const char* name, void* data, PRInt32 len)
{
  if (ContainsFlavor(name))
    return PR_FALSE;
  mMimeStore.append(new nsMimeStoreData(name, data, len));

  // we're done unless we're given text/unicode,
  // and text/plain is not already advertised,
  if (strcmp(name, kUnicodeMime) || ContainsFlavor(kTextMime))
    return PR_TRUE;
  // in which case we also advertise text/plain
  // which we will convert on our own in nsDataObj::GetText().

  char *as = ToNewCString(nsDependentString((PRUnichar*)data));

  // let's text/plain be first for stupid programs
  // Ownership of |as| is transfered to mMimeStore
  mMimeStore.insert(0,new nsMimeStoreData(kTextMime,as,nsCRT::strlen(as) + 1));
  return PR_TRUE;
}

//----------------------------------------------------------
nsDragObject::nsDragObject(nsMimeStore* mimeStore,QWidget* dragSource,
                           const char* name)
  : QDragObject(dragSource, name)
{
  if (!mimeStore)
    NS_ASSERTION(PR_TRUE, "Invalid  pointer.");

  mMimeStore = mimeStore;
}

nsDragObject::~nsDragObject()
{
  delete mMimeStore;
}

const char* nsDragObject::format(int i) const
{
  if (i >= (int)mMimeStore->count())
    return 0;

  const char* frm = mMimeStore->format(i);
#ifdef NS_DEBUG
  printf("nsDragObject::format i=%i %s\n",i, frm);
#endif
  return frm;
}

QByteArray nsDragObject::encodedData(const char* frm) const
{
#ifdef NS_DEBUG
  printf("nsDragObject::encodedData %s\n",frm);
#endif
  return mMimeStore->encodedData(frm);
}