gecko/content/events/src/nsDOMDataContainerEvent.cpp
2010-01-12 14:08:43 +01:00

119 lines
4.2 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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
* Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Alexander Surkov <surkov.alexander@gmail.com> (original author)
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsDOMDataContainerEvent.h"
#include "nsContentUtils.h"
nsDOMDataContainerEvent::nsDOMDataContainerEvent(nsPresContext *aPresContext,
nsEvent *aEvent)
: nsDOMEvent(aPresContext, aEvent)
{
mData.Init();
}
NS_IMPL_CYCLE_COLLECTION_CLASS(nsDOMDataContainerEvent)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(nsDOMDataContainerEvent,
nsDOMEvent)
if (tmp->mData.IsInitialized())
tmp->mData.Clear();
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(nsDOMDataContainerEvent,
nsDOMEvent)
tmp->mData.EnumerateRead(TraverseEntry, &cb);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
NS_IMPL_ADDREF_INHERITED(nsDOMDataContainerEvent, nsDOMEvent)
NS_IMPL_RELEASE_INHERITED(nsDOMDataContainerEvent, nsDOMEvent)
DOMCI_DATA(DataContainerEvent, nsDOMDataContainerEvent)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsDOMDataContainerEvent)
NS_INTERFACE_MAP_ENTRY(nsIDOMDataContainerEvent)
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(DataContainerEvent)
NS_INTERFACE_MAP_END_INHERITING(nsDOMEvent)
NS_IMETHODIMP
nsDOMDataContainerEvent::GetData(const nsAString& aKey, nsIVariant **aData)
{
NS_ENSURE_ARG_POINTER(aData);
NS_ENSURE_STATE(mData.IsInitialized());
mData.Get(aKey, aData);
return NS_OK;
}
NS_IMETHODIMP
nsDOMDataContainerEvent::SetData(const nsAString& aKey, nsIVariant *aData)
{
NS_ENSURE_ARG(aData);
// Make sure this event isn't already being dispatched.
NS_ENSURE_STATE(!(NS_IS_EVENT_IN_DISPATCH(mEvent)));
NS_ENSURE_STATE(mData.IsInitialized());
return mData.Put(aKey, aData) ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
nsresult
NS_NewDOMDataContainerEvent(nsIDOMEvent** aInstancePtrResult,
nsPresContext* aPresContext,
nsEvent* aEvent)
{
nsDOMDataContainerEvent* it =
new nsDOMDataContainerEvent(aPresContext, aEvent);
NS_ENSURE_TRUE(it, NS_ERROR_OUT_OF_MEMORY);
return CallQueryInterface(it, aInstancePtrResult);
}
PLDHashOperator
nsDOMDataContainerEvent::TraverseEntry(const nsAString& aKey,
nsIVariant *aDataItem,
void* aUserArg)
{
nsCycleCollectionTraversalCallback *cb =
static_cast<nsCycleCollectionTraversalCallback*>(aUserArg);
cb->NoteXPCOMChild(aDataItem);
return PL_DHASH_NEXT;
}