mirror of
https://code.videolan.org/videolan/vlc
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2e888fde24
projects/ - contains projects that link to libvlc other than vlc and the bindings. extras/package - contains the packaging specific files. extras/deprecated - deprecated files. extras/buildsystem - contains non-default buildsystem stuff. extras/analyser - contains code analyser (such as editor specific files) specific files.
305 lines
8.6 KiB
C++
305 lines
8.6 KiB
C++
/*****************************************************************************
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* connectioncontainer.cpp: ActiveX control for VLC
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*****************************************************************************
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* Copyright (C) 2005 the VideoLAN team
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*
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* Authors: Damien Fouilleul <Damien.Fouilleul@laposte.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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#include "plugin.h"
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#include "connectioncontainer.h"
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#include "utils.h"
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using namespace std;
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////////////////////////////////////////////////////////////////////////////////////////////////
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/* this function object is used to return the value from a map pair */
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struct VLCEnumConnectionsDereference
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{
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CONNECTDATA operator()(const map<DWORD,LPUNKNOWN>::iterator& i)
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{
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CONNECTDATA cd;
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i->second->AddRef();
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cd.dwCookie = i->first;
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cd.pUnk = i->second;
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return cd;
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};
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};
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class VLCEnumConnections : public VLCEnumIterator<IID_IEnumConnections,
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IEnumConnections,
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CONNECTDATA,
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map<DWORD,LPUNKNOWN>::iterator,
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VLCEnumConnectionsDereference>
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{
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public:
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VLCEnumConnections(map<DWORD,LPUNKNOWN> &m) :
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VLCEnumIterator<IID_IEnumConnections,
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IEnumConnections,
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CONNECTDATA,
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map<DWORD,LPUNKNOWN>::iterator,
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VLCEnumConnectionsDereference> (m.begin(), m.end())
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{};
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};
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////////////////////////////////////////////////////////////////////////////////////////////////
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/* this function object is used to retain the dereferenced iterator value */
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struct VLCEnumConnectionPointsDereference
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{
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LPCONNECTIONPOINT operator()(const vector<LPCONNECTIONPOINT>::iterator& i)
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{
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LPCONNECTIONPOINT cp = *i;
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cp->AddRef();
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return cp;
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}
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};
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class VLCEnumConnectionPoints: public VLCEnumIterator<IID_IEnumConnectionPoints,
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IEnumConnectionPoints,
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LPCONNECTIONPOINT,
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vector<LPCONNECTIONPOINT>::iterator,
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VLCEnumConnectionPointsDereference>
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{
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public:
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VLCEnumConnectionPoints(vector<LPCONNECTIONPOINT>& v) :
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VLCEnumIterator<IID_IEnumConnectionPoints,
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IEnumConnectionPoints,
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LPCONNECTIONPOINT,
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vector<LPCONNECTIONPOINT>::iterator,
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VLCEnumConnectionPointsDereference> (v.begin(), v.end())
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{};
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};
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////////////////////////////////////////////////////////////////////////////////////////////////
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STDMETHODIMP VLCConnectionPoint::GetConnectionInterface(IID *iid)
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{
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if( NULL == iid )
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return E_POINTER;
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*iid = _iid;
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return S_OK;
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};
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STDMETHODIMP VLCConnectionPoint::GetConnectionPointContainer(LPCONNECTIONPOINTCONTAINER *ppCPC)
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{
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if( NULL == ppCPC )
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return E_POINTER;
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_p_cpc->AddRef();
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*ppCPC = _p_cpc;
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return S_OK;
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};
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STDMETHODIMP VLCConnectionPoint::Advise(IUnknown *pUnk, DWORD *pdwCookie)
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{
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static DWORD dwCookieCounter = 0;
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if( (NULL == pUnk) || (NULL == pdwCookie) )
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return E_POINTER;
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if( SUCCEEDED(pUnk->QueryInterface(_iid, (LPVOID *)&pUnk)) )
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{
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*pdwCookie = ++dwCookieCounter;
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_connections[*pdwCookie] = pUnk;
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return S_OK;
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}
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return CONNECT_E_CANNOTCONNECT;
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};
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STDMETHODIMP VLCConnectionPoint::Unadvise(DWORD pdwCookie)
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{
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map<DWORD,LPUNKNOWN>::iterator pcd = _connections.find((DWORD)pdwCookie);
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if( pcd != _connections.end() )
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{
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pcd->second->Release();
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_connections.erase(pdwCookie);
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return S_OK;
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}
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return CONNECT_E_NOCONNECTION;
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};
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STDMETHODIMP VLCConnectionPoint::EnumConnections(IEnumConnections **ppEnum)
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{
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if( NULL == ppEnum )
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return E_POINTER;
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*ppEnum = dynamic_cast<LPENUMCONNECTIONS>(new VLCEnumConnections(_connections));
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return (NULL != *ppEnum ) ? S_OK : E_OUTOFMEMORY;
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};
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void VLCConnectionPoint::fireEvent(DISPID dispId, DISPPARAMS *pDispParams)
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{
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map<DWORD,LPUNKNOWN>::iterator end = _connections.end();
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map<DWORD,LPUNKNOWN>::iterator iter = _connections.begin();
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while( iter != end )
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{
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LPUNKNOWN pUnk = iter->second;
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if( NULL != pUnk )
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{
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IDispatch *pDisp;
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if( SUCCEEDED(pUnk->QueryInterface(_iid, (LPVOID *)&pDisp)) )
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{
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pDisp->Invoke(dispId, IID_NULL, LOCALE_USER_DEFAULT, DISPATCH_METHOD, pDispParams, NULL, NULL, NULL);
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pDisp->Release();
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}
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}
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++iter;
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}
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};
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void VLCConnectionPoint::firePropChangedEvent(DISPID dispId)
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{
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map<DWORD,LPUNKNOWN>::iterator end = _connections.end();
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map<DWORD,LPUNKNOWN>::iterator iter = _connections.begin();
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while( iter != end )
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{
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LPUNKNOWN pUnk = iter->second;
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if( NULL != pUnk )
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{
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IPropertyNotifySink *pPropSink;
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if( SUCCEEDED(pUnk->QueryInterface(IID_IPropertyNotifySink, (LPVOID *)&pPropSink)) )
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{
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pPropSink->OnChanged(dispId);
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pPropSink->Release();
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}
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}
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++iter;
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}
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};
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////////////////////////////////////////////////////////////////////////////////////////////////
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VLCDispatchEvent::~VLCDispatchEvent()
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{
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//clear event arguments
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if( NULL != _dispParams.rgvarg )
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{
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for(unsigned int c=0; c<_dispParams.cArgs; ++c)
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VariantClear(_dispParams.rgvarg+c);
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CoTaskMemFree(_dispParams.rgvarg);
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}
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if( NULL != _dispParams.rgdispidNamedArgs )
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CoTaskMemFree(_dispParams.rgdispidNamedArgs);
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};
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////////////////////////////////////////////////////////////////////////////////////////////////
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VLCConnectionPointContainer::VLCConnectionPointContainer(VLCPlugin *p_instance) :
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_p_instance(p_instance), _b_freeze(FALSE)
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{
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_p_events = new VLCConnectionPoint(dynamic_cast<LPCONNECTIONPOINTCONTAINER>(this),
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_p_instance->getDispEventID());
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_v_cps.push_back(dynamic_cast<LPCONNECTIONPOINT>(_p_events));
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_p_props = new VLCConnectionPoint(dynamic_cast<LPCONNECTIONPOINTCONTAINER>(this),
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IID_IPropertyNotifySink);
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_v_cps.push_back(dynamic_cast<LPCONNECTIONPOINT>(_p_props));
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};
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VLCConnectionPointContainer::~VLCConnectionPointContainer()
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{
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delete _p_props;
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delete _p_events;
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};
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STDMETHODIMP VLCConnectionPointContainer::EnumConnectionPoints(LPENUMCONNECTIONPOINTS *ppEnum)
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{
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if( NULL == ppEnum )
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return E_POINTER;
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*ppEnum = dynamic_cast<LPENUMCONNECTIONPOINTS>(new VLCEnumConnectionPoints(_v_cps));
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return (NULL != *ppEnum ) ? S_OK : E_OUTOFMEMORY;
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};
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STDMETHODIMP VLCConnectionPointContainer::FindConnectionPoint(REFIID riid, IConnectionPoint **ppCP)
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{
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if( NULL == ppCP )
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return E_POINTER;
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*ppCP = NULL;
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if( IID_IPropertyNotifySink == riid )
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{
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_p_props->AddRef();
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*ppCP = dynamic_cast<LPCONNECTIONPOINT>(_p_props);
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}
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else if( _p_instance->getDispEventID() == riid )
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{
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_p_events->AddRef();
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*ppCP = dynamic_cast<LPCONNECTIONPOINT>(_p_events);
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}
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else
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return CONNECT_E_NOCONNECTION;
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return NOERROR;
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};
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void VLCConnectionPointContainer::freezeEvents(BOOL freeze)
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{
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if( ! freeze )
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{
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// release queued events
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while( ! _q_events.empty() )
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{
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VLCDispatchEvent *ev = _q_events.front();
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_q_events.pop();
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_p_events->fireEvent(ev->_dispId, &ev->_dispParams);
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delete ev;
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}
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}
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_b_freeze = freeze;
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};
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void VLCConnectionPointContainer::fireEvent(DISPID dispId, DISPPARAMS* pDispParams)
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{
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if( _b_freeze )
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{
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// queue event for later use when container is ready
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_q_events.push(new VLCDispatchEvent(dispId, *pDispParams));
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if( _q_events.size() > 10 )
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{
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// too many events in queue, get rid of older one
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delete _q_events.front();
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_q_events.pop();
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}
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}
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else
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{
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_p_events->fireEvent(dispId, pDispParams);
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}
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};
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void VLCConnectionPointContainer::firePropChangedEvent(DISPID dispId)
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{
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if( ! _b_freeze )
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_p_props->firePropChangedEvent(dispId);
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};
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