gecko-dev/dom/plugins/COMMessageFilter.cpp

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3.4 KiB
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/* ***** 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 Firefox.
*
* The Initial Developer of the Original Code is
* the Mozilla Foundation <http://www.mozilla.org/>.
* Portions created by the Initial Developer are Copyright (C) 2010
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 "base/basictypes.h"
#include "COMMessageFilter.h"
#include "base/message_loop.h"
#include "mozilla/plugins/PluginModuleChild.h"
#include <stdio.h>
namespace mozilla {
namespace plugins {
HRESULT
COMMessageFilter::QueryInterface(REFIID riid, void** ppv)
{
if (riid == IID_IUnknown || riid == IID_IMessageFilter) {
*ppv = static_cast<IMessageFilter*>(this);
AddRef();
return S_OK;
}
return E_NOINTERFACE;
}
DWORD COMMessageFilter::AddRef()
{
++mRefCnt;
return mRefCnt;
}
DWORD COMMessageFilter::Release()
{
DWORD r = --mRefCnt;
if (0 == r)
delete this;
return r;
}
DWORD
COMMessageFilter::HandleInComingCall(DWORD dwCallType,
HTASK htaskCaller,
DWORD dwTickCount,
LPINTERFACEINFO lpInterfaceInfo)
{
if (mPreviousFilter)
return mPreviousFilter->HandleInComingCall(dwCallType, htaskCaller,
dwTickCount, lpInterfaceInfo);
return SERVERCALL_ISHANDLED;
}
DWORD
COMMessageFilter::RetryRejectedCall(HTASK htaskCallee,
DWORD dwTickCount,
DWORD dwRejectType)
{
if (mPreviousFilter)
return mPreviousFilter->RetryRejectedCall(htaskCallee, dwTickCount,
dwRejectType);
return -1;
}
DWORD
COMMessageFilter::MessagePending(HTASK htaskCallee,
DWORD dwTickCount,
DWORD dwPendingType)
{
mPlugin->FlushPendingRPCQueue();
if (mPreviousFilter)
return mPreviousFilter->MessagePending(htaskCallee, dwTickCount,
dwPendingType);
return PENDINGMSG_WAITNOPROCESS;
}
void
COMMessageFilter::Initialize(PluginModuleChild* module)
{
nsRefPtr<COMMessageFilter> f = new COMMessageFilter(module);
::CoRegisterMessageFilter(f, getter_AddRefs(f->mPreviousFilter));
}
} // namespace plugins
} // namespace mozilla