168 lines
4.1 KiB
C++
168 lines
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* 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 Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All
|
|
* Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
*/
|
|
|
|
#include "nsBaseClipboard.h"
|
|
|
|
#include "nsIClipboardOwner.h"
|
|
#include "nsString.h"
|
|
|
|
#include "nsIWidget.h"
|
|
#include "nsIComponentManager.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsISupportsPrimitives.h"
|
|
|
|
|
|
NS_IMPL_ADDREF(nsBaseClipboard)
|
|
NS_IMPL_RELEASE(nsBaseClipboard)
|
|
NS_IMPL_QUERY_INTERFACE1(nsBaseClipboard, nsIClipboard);
|
|
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// nsBaseClipboard constructor
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
nsBaseClipboard::nsBaseClipboard()
|
|
{
|
|
NS_INIT_REFCNT();
|
|
mClipboardOwner = nsnull;
|
|
mTransferable = nsnull;
|
|
mIgnoreEmptyNotification = PR_FALSE;
|
|
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// nsBaseClipboard destructor
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
nsBaseClipboard::~nsBaseClipboard()
|
|
{
|
|
EmptyClipboard(kSelectionClipboard);
|
|
EmptyClipboard(kGlobalClipboard);
|
|
}
|
|
|
|
|
|
/**
|
|
* Sets the transferable object
|
|
*
|
|
*/
|
|
NS_IMETHODIMP nsBaseClipboard::SetData(nsITransferable * aTransferable, nsIClipboardOwner * anOwner,
|
|
PRInt32 aWhichClipboard)
|
|
{
|
|
NS_ASSERTION ( aTransferable, "clipboard given a null transferable" );
|
|
|
|
if (aTransferable == mTransferable && anOwner == mClipboardOwner)
|
|
return NS_OK;
|
|
PRBool selectClipPresent;
|
|
SupportsSelectionClipboard(&selectClipPresent);
|
|
if ( !selectClipPresent && aWhichClipboard != kGlobalClipboard )
|
|
return NS_ERROR_FAILURE;
|
|
|
|
EmptyClipboard(aWhichClipboard);
|
|
|
|
mClipboardOwner = anOwner;
|
|
if ( anOwner )
|
|
NS_ADDREF(mClipboardOwner);
|
|
|
|
mTransferable = aTransferable;
|
|
|
|
nsresult rv = NS_ERROR_FAILURE;
|
|
|
|
if ( mTransferable ) {
|
|
NS_ADDREF(mTransferable);
|
|
rv = SetNativeClipboardData(aWhichClipboard);
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
/**
|
|
* Gets the transferable object
|
|
*
|
|
*/
|
|
NS_IMETHODIMP nsBaseClipboard::GetData(nsITransferable * aTransferable, PRInt32 aWhichClipboard)
|
|
{
|
|
NS_ASSERTION ( aTransferable, "clipboard given a null transferable" );
|
|
|
|
PRBool selectClipPresent;
|
|
SupportsSelectionClipboard(&selectClipPresent);
|
|
if ( !selectClipPresent && aWhichClipboard != kGlobalClipboard )
|
|
return NS_ERROR_FAILURE;
|
|
|
|
if ( aTransferable )
|
|
return GetNativeClipboardData(aTransferable, aWhichClipboard);
|
|
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
*
|
|
*/
|
|
NS_IMETHODIMP nsBaseClipboard::EmptyClipboard(PRInt32 aWhichClipboard)
|
|
{
|
|
PRBool selectClipPresent;
|
|
SupportsSelectionClipboard(&selectClipPresent);
|
|
if ( !selectClipPresent && aWhichClipboard != kGlobalClipboard )
|
|
return NS_ERROR_FAILURE;
|
|
|
|
if (mIgnoreEmptyNotification)
|
|
return NS_OK;
|
|
|
|
if ( mClipboardOwner ) {
|
|
mClipboardOwner->LosingOwnership(mTransferable);
|
|
NS_RELEASE(mClipboardOwner);
|
|
}
|
|
|
|
NS_IF_RELEASE(mTransferable);
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
*
|
|
*/
|
|
NS_IMETHODIMP nsBaseClipboard::ForceDataToClipboard(PRInt32 aWhichClipboard)
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsBaseClipboard :: HasDataMatchingFlavors ( nsISupportsArray* aFlavorList, PRInt32 aWhichClipboard, PRBool * outResult )
|
|
{
|
|
*outResult = PR_TRUE; // say we always do.
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
NS_IMETHODIMP
|
|
nsBaseClipboard :: SupportsSelectionClipboard ( PRBool *_retval )
|
|
{
|
|
*_retval = PR_FALSE; // we don't suport the selection clipboard by default.
|
|
return NS_OK;
|
|
}
|