gecko/docshell/base/nsDocShellTransferableHooks.cpp

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2012-05-21 04:12:37 -07:00
/* 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/. */
#include "nsCOMPtr.h"
#include "nsCOMArray.h"
#include "nsDocShellTransferableHooks.h"
#include "nsIClipboardDragDropHooks.h"
#include "nsIClipboardDragDropHookList.h"
#include "nsISimpleEnumerator.h"
#include "nsArrayEnumerator.h"
nsTransferableHookData::nsTransferableHookData()
{
}
nsTransferableHookData::~nsTransferableHookData()
{
}
//*****************************************************************************
// nsIClipboardDragDropHookList
//*****************************************************************************
NS_IMPL_ISUPPORTS1(nsTransferableHookData, nsIClipboardDragDropHookList)
NS_IMETHODIMP
nsTransferableHookData::AddClipboardDragDropHooks(
nsIClipboardDragDropHooks *aOverrides)
{
NS_ENSURE_ARG(aOverrides);
// don't let a hook be added more than once
if (mHookList.IndexOfObject(aOverrides) == -1)
{
if (!mHookList.AppendObject(aOverrides))
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
nsTransferableHookData::RemoveClipboardDragDropHooks(
nsIClipboardDragDropHooks *aOverrides)
{
NS_ENSURE_ARG(aOverrides);
if (!mHookList.RemoveObject(aOverrides))
return NS_ERROR_FAILURE;
return NS_OK;
}
NS_IMETHODIMP
nsTransferableHookData::GetHookEnumerator(nsISimpleEnumerator **aResult)
{
return NS_NewArrayEnumerator(aResult, mHookList);
}