146 lines
3.2 KiB
C++
146 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#include "nsBaseClipboard.h"
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#include "nsIClipboardOwner.h"
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#include "nsString.h"
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#include "nsIWidget.h"
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#include "nsIComponentManager.h"
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#include "nsCOMPtr.h"
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#include "nsISupportsPrimitives.h"
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NS_IMPL_ADDREF(nsBaseClipboard)
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NS_IMPL_RELEASE(nsBaseClipboard)
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NS_IMPL_QUERY_INTERFACE1(nsBaseClipboard, nsIClipboard);
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//-------------------------------------------------------------------------
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//
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// nsBaseClipboard constructor
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//
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//-------------------------------------------------------------------------
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nsBaseClipboard::nsBaseClipboard()
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{
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NS_INIT_REFCNT();
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mClipboardOwner = nsnull;
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mTransferable = nsnull;
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mIgnoreEmptyNotification = PR_FALSE;
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}
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//-------------------------------------------------------------------------
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//
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// nsBaseClipboard destructor
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//
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//-------------------------------------------------------------------------
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nsBaseClipboard::~nsBaseClipboard()
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{
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EmptyClipboard();
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}
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/**
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* Sets the transferable object
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*
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*/
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NS_IMETHODIMP nsBaseClipboard::SetData(nsITransferable * aTransferable, nsIClipboardOwner * anOwner)
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{
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if (aTransferable == mTransferable && anOwner == mClipboardOwner) {
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return NS_OK;
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}
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EmptyClipboard();
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mClipboardOwner = anOwner;
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if (nsnull != anOwner) {
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NS_ADDREF(mClipboardOwner);
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}
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mTransferable = aTransferable;
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nsresult rv = NS_ERROR_FAILURE;
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if (nsnull != mTransferable) {
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NS_ADDREF(mTransferable);
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rv = SetNativeClipboardData();
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} else {
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printf(" nsBaseClipboard::SetData(), aTransferable is NULL.\n");
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}
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return rv;
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}
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/**
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* Gets the transferable object
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*
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*/
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NS_IMETHODIMP nsBaseClipboard::GetData(nsITransferable * aTransferable)
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{
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if (nsnull != aTransferable) {
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return GetNativeClipboardData(aTransferable);
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} else {
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printf(" nsBaseClipboard::GetData(), aTransferable is NULL.\n");
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}
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return NS_ERROR_FAILURE;
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}
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/**
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*
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*
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*/
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NS_IMETHODIMP nsBaseClipboard::EmptyClipboard()
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{
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if (mIgnoreEmptyNotification) {
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return NS_OK;
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}
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if (nsnull != mClipboardOwner) {
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mClipboardOwner->LosingOwnership(mTransferable);
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NS_RELEASE(mClipboardOwner);
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}
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if (nsnull != mTransferable) {
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NS_RELEASE(mTransferable);
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}
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return NS_OK;
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}
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/**
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*
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*
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*/
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NS_IMETHODIMP nsBaseClipboard::ForceDataToClipboard()
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{
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return NS_OK;
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}
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NS_IMETHODIMP
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nsBaseClipboard :: HasDataMatchingFlavors ( nsISupportsArray* aFlavorList, PRBool * outResult )
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{
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*outResult = PR_TRUE; // say we always do.
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return NS_OK;
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}
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