50c1d70717
Added Drag & Drag Support ifdef'ed out with NEW_DRAG_AND_DROP git-svn-id: svn://10.0.0.236/trunk@27983 18797224-902f-48f8-a5cc-f745e15eee43
182 lines
4.1 KiB
C++
182 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 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
|
|
#include "nsBaseClipboard.h"
|
|
|
|
#include "nsISupportsArray.h"
|
|
#include "nsIClipboardOwner.h"
|
|
#include "nsIDataFlavor.h"
|
|
|
|
#include "nsIWidget.h"
|
|
#include "nsIComponentManager.h"
|
|
#include "nsWidgetsCID.h"
|
|
|
|
// interface definitions
|
|
static NS_DEFINE_IID(kIDataFlavorIID, NS_IDATAFLAVOR_IID);
|
|
|
|
static NS_DEFINE_IID(kIWidgetIID, NS_IWIDGET_IID);
|
|
static NS_DEFINE_IID(kWindowCID, NS_WINDOW_CID);
|
|
|
|
NS_IMPL_ADDREF(nsBaseClipboard)
|
|
NS_IMPL_RELEASE(nsBaseClipboard)
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// nsBaseClipboard constructor
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
nsBaseClipboard::nsBaseClipboard()
|
|
{
|
|
NS_INIT_REFCNT();
|
|
mClipboardOwner = nsnull;
|
|
mTransferable = nsnull;
|
|
mIgnoreEmptyNotification = PR_FALSE;
|
|
|
|
}
|
|
|
|
//-------------------------------------------------------------------------
|
|
//
|
|
// nsBaseClipboard destructor
|
|
//
|
|
//-------------------------------------------------------------------------
|
|
nsBaseClipboard::~nsBaseClipboard()
|
|
{
|
|
EmptyClipboard();
|
|
}
|
|
|
|
/**
|
|
* @param aIID The name of the class implementing the method
|
|
* @param _classiiddef The name of the #define symbol that defines the IID
|
|
* for the class (e.g. NS_ISUPPORTS_IID)
|
|
*
|
|
*/
|
|
nsresult nsBaseClipboard::QueryInterface(const nsIID& aIID, void** aInstancePtr)
|
|
{
|
|
|
|
if (NULL == aInstancePtr) {
|
|
return NS_ERROR_NULL_POINTER;
|
|
}
|
|
|
|
nsresult rv = NS_NOINTERFACE;
|
|
|
|
/*static NS_DEFINE_IID(kIClipboard, NS_ICLIPBOARD_IID);
|
|
if (aIID.Equals(kIClipboard)) {
|
|
*aInstancePtr = (void*) ((nsIClipboard*)this);
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}*/
|
|
|
|
return rv;
|
|
}
|
|
|
|
|
|
/**
|
|
* Sets the transferable object
|
|
*
|
|
*/
|
|
NS_IMETHODIMP nsBaseClipboard::SetData(nsITransferable * aTransferable, nsIClipboardOwner * anOwner)
|
|
{
|
|
if (aTransferable == mTransferable && anOwner == mClipboardOwner) {
|
|
return NS_OK;
|
|
}
|
|
|
|
EmptyClipboard();
|
|
|
|
mClipboardOwner = anOwner;
|
|
if (nsnull != anOwner) {
|
|
NS_ADDREF(mClipboardOwner);
|
|
}
|
|
|
|
mTransferable = aTransferable;
|
|
|
|
nsresult rv = NS_ERROR_FAILURE;
|
|
|
|
if (nsnull != mTransferable) {
|
|
NS_ADDREF(mTransferable);
|
|
rv = SetNativeClipboardData();
|
|
} else {
|
|
printf(" nsBaseClipboard::SetData(), aTransferable is NULL.\n");
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
/**
|
|
* Gets the transferable object
|
|
*
|
|
*/
|
|
NS_IMETHODIMP nsBaseClipboard::GetData(nsITransferable * aTransferable)
|
|
{
|
|
if (nsnull != aTransferable) {
|
|
return GetNativeClipboardData(aTransferable);
|
|
} else {
|
|
printf(" nsBaseClipboard::GetData(), aTransferable is NULL.\n");
|
|
}
|
|
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* This checks to see if the transferable in the clipboard object supports
|
|
* a particular data flavor
|
|
*
|
|
*/
|
|
NS_IMETHODIMP nsBaseClipboard::IsDataFlavorSupported(nsIDataFlavor * aDataFlavor)
|
|
{
|
|
// make sure we have a good transferable
|
|
if (nsnull == mTransferable) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
return mTransferable->IsDataFlavorSupported(aDataFlavor);
|
|
}
|
|
|
|
/**
|
|
*
|
|
*
|
|
*/
|
|
NS_IMETHODIMP nsBaseClipboard::EmptyClipboard()
|
|
{
|
|
if (mIgnoreEmptyNotification) {
|
|
return NS_OK;
|
|
}
|
|
|
|
if (nsnull != mClipboardOwner) {
|
|
mClipboardOwner->LosingOwnership(mTransferable);
|
|
NS_RELEASE(mClipboardOwner);
|
|
}
|
|
|
|
if (nsnull != mTransferable) {
|
|
NS_RELEASE(mTransferable);
|
|
}
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
*
|
|
*/
|
|
NS_IMETHODIMP nsBaseClipboard::ForceDataToClipboard()
|
|
{
|
|
return NS_OK;
|
|
}
|