author Nicholas Nethercote <nnethercote@mozilla.com>
Mon, 21 Aug 2017 20:01:27 +1000
changeset 425561 cc8e481fd0e16fba17ab6786a3f5212ab814c0e9
parent 307986 e1b5927361ac2fbcb7075c19061d1b73a70487dc
child 426395 ad79eeeadb0ac33ebd9459d0e497cd7c8cfae096
permissions -rw-r--r--
Bug 1390428 (part 2, attempt 2) - Remove more nsXPIDLCString local variables. r=erahm.

/* -*- 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/. */

#ifndef nsPrimitiveHelpers_h___
#define nsPrimitiveHelpers_h___

#include "nsError.h"
#include "nscore.h"

class nsISupports;

class nsPrimitiveHelpers

    // Given some data and the flavor it corresponds to, creates the appropriate
    // nsISupports* wrapper for passing across IDL boundaries. The length parameter
    // should not include the null if the data is null terminated.
  static void CreatePrimitiveForData ( const nsACString& aFlavor, const void* aDataBuff,
                                         uint32_t aDataLen, nsISupports** aPrimitive ) ;

    // A specific case of CreatePrimitive for windows CF_HTML handling in DataTransfer
  static void CreatePrimitiveForCFHTML ( const void* aDataBuff,
                                         uint32_t* aDataLen, nsISupports** aPrimitive ) ;

    // Given a nsISupports* primitive and the flavor it represents, creates a new data
    // buffer with the data in it. This data will be null terminated, but the length
    // parameter does not reflect that.
  static void CreateDataFromPrimitive ( const nsACString& aFlavor, nsISupports* aPrimitive, 
                                         void** aDataBuff, uint32_t aDataLen ) ;

}; // class nsPrimitiveHelpers

class nsLinebreakHelpers

    // Given some data, convert from the platform linebreaks into the LF expected by the
    // DOM. This will attempt to convert the data in place, but the buffer may still need to
    // be reallocated regardless (disposing the old buffer is taken care of internally, see
    // the note below).
    // NOTE: this assumes that it can use 'free' to dispose of the old buffer.
  static nsresult ConvertPlatformToDOMLinebreaks ( const nsACString& inFlavor, void** ioData, int32_t* ioLengthInBytes ) ;

}; // class nsLinebreakHelpers

#endif // nsPrimitiveHelpers_h___