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mirror of https://code.videolan.org/videolan/vlc synced 2024-07-29 11:58:24 +02:00
vlc/activex/vlccontrol.cpp

874 lines
24 KiB
C++

/*****************************************************************************
* vlccontrol.cpp: ActiveX control for VLC
*****************************************************************************
* Copyright (C) 2005 the VideoLAN team
*
* Authors: Damien Fouilleul <Damien.Fouilleul@laposte.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#include "plugin.h"
#include "vlccontrol.h"
#include "utils.h"
using namespace std;
VLCControl::~VLCControl()
{
if( _p_typeinfo )
_p_typeinfo->Release();
};
HRESULT VLCControl::getTypeInfo(void)
{
HRESULT hr = NOERROR;
if( NULL == _p_typeinfo )
{
ITypeLib *p_typelib;
HRESULT hr = _p_instance->getTypeLib(LOCALE_USER_DEFAULT, &p_typelib);
if( SUCCEEDED(hr) )
{
hr = p_typelib->GetTypeInfoOfGuid(IID_IVLCControl, &_p_typeinfo);
if( FAILED(hr) )
{
_p_typeinfo = NULL;
}
p_typelib->Release();
}
}
return hr;
};
STDMETHODIMP VLCControl::GetTypeInfoCount(UINT* pctInfo)
{
if( NULL == pctInfo )
return E_INVALIDARG;
if( SUCCEEDED(getTypeInfo()) )
*pctInfo = 1;
else
*pctInfo = 0;
return NOERROR;
};
STDMETHODIMP VLCControl::GetTypeInfo(UINT iTInfo, LCID lcid, LPTYPEINFO* ppTInfo)
{
if( NULL == ppTInfo )
return E_INVALIDARG;
if( SUCCEEDED(getTypeInfo()) )
{
_p_typeinfo->AddRef();
*ppTInfo = _p_typeinfo;
return NO_ERROR;
}
*ppTInfo = NULL;
return E_NOTIMPL;
};
STDMETHODIMP VLCControl::GetIDsOfNames(REFIID riid, LPOLESTR* rgszNames,
UINT cNames, LCID lcid, DISPID* rgDispID)
{
if( SUCCEEDED(getTypeInfo()) )
{
return DispGetIDsOfNames(_p_typeinfo, rgszNames, cNames, rgDispID);
}
return E_NOTIMPL;
};
STDMETHODIMP VLCControl::Invoke(DISPID dispIdMember, REFIID riid,
LCID lcid, WORD wFlags, DISPPARAMS* pDispParams,
VARIANT* pVarResult, EXCEPINFO* pExcepInfo, UINT* puArgErr)
{
if( SUCCEEDED(getTypeInfo()) )
{
return DispInvoke(this, _p_typeinfo, dispIdMember, wFlags, pDispParams,
pVarResult, pExcepInfo, puArgErr);
}
return E_NOTIMPL;
};
STDMETHODIMP VLCControl::get_Visible(VARIANT_BOOL *isVisible)
{
if( NULL == isVisible )
return E_POINTER;
*isVisible = _p_instance->getVisible() ? VARIANT_TRUE : VARIANT_FALSE;
return NOERROR;
};
STDMETHODIMP VLCControl::put_Visible(VARIANT_BOOL isVisible)
{
_p_instance->setVisible(isVisible != VARIANT_FALSE);
return NOERROR;
};
STDMETHODIMP VLCControl::play(void)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
VLC_Play(i_vlc);
_p_instance->fireOnPlayEvent();
return NOERROR;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::pause(void)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
VLC_Pause(i_vlc);
_p_instance->fireOnPauseEvent();
return NOERROR;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::stop(void)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
VLC_Stop(i_vlc);
_p_instance->fireOnStopEvent();
return NOERROR;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::get_Playing(VARIANT_BOOL *isPlaying)
{
if( NULL == isPlaying )
return E_POINTER;
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
*isPlaying = VLC_IsPlaying(i_vlc) ? VARIANT_TRUE : VARIANT_FALSE;
return NOERROR;
}
*isPlaying = VARIANT_FALSE;
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::get_Position(float *position)
{
if( NULL == position )
return E_POINTER;
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
*position = VLC_PositionGet(i_vlc);
return NOERROR;
}
*position = 0.0f;
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::put_Position(float position)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
VLC_PositionSet(i_vlc, position);
return NOERROR;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::get_Time(int *seconds)
{
if( NULL == seconds )
return E_POINTER;
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
*seconds = VLC_TimeGet(i_vlc);
return NOERROR;
}
*seconds = 0;
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::put_Time(int seconds)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
VLC_TimeSet(i_vlc, seconds, VLC_FALSE);
return NOERROR;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::shuttle(int seconds)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
VLC_TimeSet(i_vlc, seconds, VLC_TRUE);
return NOERROR;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::fullscreen(void)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
VLC_FullScreen(i_vlc);
return NOERROR;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::get_Length(int *seconds)
{
if( NULL == seconds )
return E_POINTER;
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
*seconds = VLC_LengthGet(i_vlc);
return NOERROR;
}
*seconds = 0;
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::playFaster(void)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
VLC_SpeedFaster(i_vlc);
return NOERROR;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::playSlower(void)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
VLC_SpeedSlower(i_vlc);
return NOERROR;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::get_Volume(int *volume)
{
if( NULL == volume )
return E_POINTER;
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
*volume = VLC_VolumeGet(i_vlc);
return NOERROR;
}
*volume = 0;
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::put_Volume(int volume)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
VLC_VolumeSet(i_vlc, volume);
return NOERROR;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::toggleMute(void)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
VLC_VolumeMute(i_vlc);
return NOERROR;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::setVariable(BSTR name, VARIANT value)
{
if( 0 == SysStringLen(name) )
return E_INVALIDARG;
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
int codePage = _p_instance->getCodePage();
char *psz_varname = CStrFromBSTR(codePage, name);
if( NULL == psz_varname )
return E_OUTOFMEMORY;
HRESULT hr = E_INVALIDARG;
int i_type;
vlc_value_t val;
if( VLC_SUCCESS == VLC_VariableType(i_vlc, psz_varname, &i_type) )
{
VARIANT arg;
VariantInit(&arg);
switch( i_type )
{
case VLC_VAR_BOOL:
hr = VariantChangeType(&arg, &value, 0, VT_BOOL);
if( SUCCEEDED(hr) )
val.b_bool = (VARIANT_TRUE == V_BOOL(&arg)) ? VLC_TRUE : VLC_FALSE;
break;
case VLC_VAR_INTEGER:
case VLC_VAR_HOTKEY:
hr = VariantChangeType(&arg, &value, 0, VT_I4);
if( SUCCEEDED(hr) )
val.i_int = V_I4(&arg);
break;
case VLC_VAR_FLOAT:
hr = VariantChangeType(&arg, &value, 0, VT_R4);
if( SUCCEEDED(hr) )
val.f_float = V_R4(&arg);
break;
case VLC_VAR_STRING:
case VLC_VAR_MODULE:
case VLC_VAR_FILE:
case VLC_VAR_DIRECTORY:
case VLC_VAR_VARIABLE:
hr = VariantChangeType(&arg, &value, 0, VT_BSTR);
if( SUCCEEDED(hr) )
{
i_type = VLC_VAR_STRING;
val.psz_string = CStrFromBSTR(codePage, V_BSTR(&arg));
VariantClear(&arg);
}
break;
case VLC_VAR_TIME:
// use a double value to represent time (base is expressed in seconds)
hr = VariantChangeType(&arg, &value, 0, VT_R8);
if( SUCCEEDED(hr) )
val.i_time = (signed __int64)(V_R8(&arg)*1000000.0);
break;
default:
hr = DISP_E_TYPEMISMATCH;
}
}
else {
// no defined type, defaults to VARIANT type
hr = NO_ERROR;
switch( V_VT(&value) )
{
case VT_BOOL:
val.b_bool = (VARIANT_TRUE == V_BOOL(&value)) ? VLC_TRUE : VLC_FALSE;
i_type = VLC_VAR_BOOL;
break;
case VT_I4:
val.i_int = V_I4(&value);
i_type = VLC_VAR_INTEGER;
break;
case VT_R4:
val.f_float = V_R4(&value);
i_type = VLC_VAR_FLOAT;
break;
case VT_BSTR:
val.psz_string = CStrFromBSTR(codePage, V_BSTR(&value));
i_type = VLC_VAR_STRING;
break;
case VT_R8:
// use a double value to represent time (base is expressed in seconds)
val.i_time = (signed __int64)(V_R8(&value)*1000000.0);
i_type = VLC_VAR_TIME;
break;
default:
hr = DISP_E_TYPEMISMATCH;
}
}
if( SUCCEEDED(hr) )
{
hr = (VLC_SUCCESS == VLC_VariableSet(i_vlc, psz_varname, val)) ? NOERROR : E_FAIL;
if( (VLC_VAR_STRING == i_type) && (NULL != val.psz_string) )
CoTaskMemFree(val.psz_string);
}
CoTaskMemFree(psz_varname);
return hr;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::getVariable( BSTR name, VARIANT *value)
{
if( NULL == value )
return E_POINTER;
VariantInit(value);
if( 0 == SysStringLen(name) )
return E_INVALIDARG;
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
UINT codePage = _p_instance->getCodePage();
char *psz_varname = CStrFromBSTR(codePage, name);
if( NULL == psz_varname )
return E_OUTOFMEMORY;
HRESULT hr = E_INVALIDARG;
vlc_value_t val;
int i_type;
if( (VLC_SUCCESS == VLC_VariableGet(i_vlc, psz_varname, &val))
&& (VLC_SUCCESS == VLC_VariableType(i_vlc, psz_varname, &i_type)) )
{
hr = NOERROR;
switch( i_type )
{
case VLC_VAR_BOOL:
V_VT(value) = VT_BOOL;
V_BOOL(value) = val.b_bool ? VARIANT_TRUE : VARIANT_FALSE;
break;
case VLC_VAR_INTEGER:
case VLC_VAR_HOTKEY:
V_VT(value) = VT_I4;
V_I4(value) = val.i_int;
break;
case VLC_VAR_FLOAT:
V_VT(value) = VT_R4;
V_R4(value) = val.f_float;
break;
case VLC_VAR_STRING:
case VLC_VAR_MODULE:
case VLC_VAR_FILE:
case VLC_VAR_DIRECTORY:
case VLC_VAR_VARIABLE:
V_VT(value) = VT_BSTR;
V_BSTR(value) = BSTRFromCStr(codePage, val.psz_string);
if( NULL != val.psz_string)
free(val.psz_string);
break;
case VLC_VAR_TIME:
// use a double value to represent time (base is expressed in seconds)
V_VT(value) = VT_R8;
V_R8(value) = ((double)val.i_time)/1000000.0;
break;
default:
hr = DISP_E_TYPEMISMATCH;
}
}
CoTaskMemFree(psz_varname);
return hr;
}
return E_UNEXPECTED;
};
static void freeTargetOptions(char **cOptions, int cOptionCount)
{
// clean up
if( NULL != cOptions )
{
for( int pos=0; pos<cOptionCount; ++pos )
{
char *cOption = cOptions[pos];
if( NULL != cOption )
CoTaskMemFree(cOption);
else
break;
}
CoTaskMemFree(cOptions);
}
};
static HRESULT createTargetOptions(int codePage, VARIANT *options, char ***cOptions, int *cOptionCount)
{
HRESULT hr = E_INVALIDARG;
if( VT_ERROR == V_VT(options) )
{
if( DISP_E_PARAMNOTFOUND == V_ERROR(options) )
{
// optional parameter not set
*cOptions = NULL;
*cOptionCount = 0;
return NOERROR;
}
}
else if( (VT_EMPTY == V_VT(options)) || (VT_NULL == V_VT(options)) )
{
// null parameter
*cOptions = NULL;
*cOptionCount = 0;
return NOERROR;
}
else if( VT_DISPATCH == V_VT(options) )
{
// collection parameter
VARIANT colEnum;
V_VT(&colEnum) = VT_UNKNOWN;
hr = GetObjectProperty(V_DISPATCH(options), DISPID_NEWENUM, colEnum);
if( SUCCEEDED(hr) )
{
IEnumVARIANT *enumVar;
hr = V_UNKNOWN(&colEnum)->QueryInterface(IID_IEnumVARIANT, (LPVOID *)&enumVar);
if( SUCCEEDED(hr) )
{
long pos = 0;
long capacity = 16;
VARIANT option;
*cOptions = (char **)CoTaskMemAlloc(capacity*sizeof(char *));
if( NULL != *cOptions )
{
ZeroMemory(*cOptions, sizeof(char *)*capacity);
while( SUCCEEDED(hr) && (S_OK == enumVar->Next(1, &option, NULL)) )
{
if( VT_BSTR == V_VT(&option) )
{
char *cOption = CStrFromBSTR(codePage, V_BSTR(&option));
(*cOptions)[pos] = cOption;
if( NULL != cOption )
{
++pos;
if( pos == capacity )
{
char **moreOptions = (char **)CoTaskMemRealloc(*cOptions, (capacity+16)*sizeof(char *));
if( NULL != moreOptions )
{
ZeroMemory(moreOptions+capacity, sizeof(char *)*16);
capacity += 16;
*cOptions = moreOptions;
}
else
hr = E_OUTOFMEMORY;
}
}
else
hr = ( SysStringLen(V_BSTR(&option)) > 0 ) ?
E_OUTOFMEMORY : E_INVALIDARG;
}
else
hr = E_INVALIDARG;
VariantClear(&option);
}
*cOptionCount = pos;
if( FAILED(hr) )
{
// free already processed elements
freeTargetOptions(*cOptions, *cOptionCount);
}
}
else
hr = E_OUTOFMEMORY;
enumVar->Release();
}
}
}
else if( V_ISARRAY(options) )
{
// array parameter
SAFEARRAY *array = V_ISBYREF(options) ? *V_ARRAYREF(options) : V_ARRAY(options);
if( SafeArrayGetDim(array) != 1 )
return E_INVALIDARG;
long lBound = 0;
long uBound = 0;
SafeArrayGetLBound(array, 1, &lBound);
SafeArrayGetUBound(array, 1, &uBound);
// have we got any options
if( uBound >= lBound )
{
VARTYPE vType;
hr = SafeArrayGetVartype(array, &vType);
if( FAILED(hr) )
return hr;
long pos;
// marshall options into an array of C strings
if( VT_VARIANT == vType )
{
*cOptions = (char **)CoTaskMemAlloc(sizeof(char *)*(uBound-lBound+1));
if( NULL == *cOptions )
return E_OUTOFMEMORY;
ZeroMemory(*cOptions, sizeof(char *)*(uBound-lBound+1));
for(pos=lBound; (pos<=uBound) && SUCCEEDED(hr); ++pos )
{
VARIANT option;
hr = SafeArrayGetElement(array, &pos, &option);
if( SUCCEEDED(hr) )
{
if( VT_BSTR == V_VT(&option) )
{
char *cOption = CStrFromBSTR(codePage, V_BSTR(&option));
(*cOptions)[pos-lBound] = cOption;
if( NULL == cOption )
hr = ( SysStringLen(V_BSTR(&option)) > 0 ) ?
E_OUTOFMEMORY : E_INVALIDARG;
}
else
hr = E_INVALIDARG;
VariantClear(&option);
}
}
}
else if( VT_BSTR == vType )
{
*cOptions = (char **)CoTaskMemAlloc(sizeof(char *)*(uBound-lBound+1));
if( NULL == *cOptions )
return E_OUTOFMEMORY;
ZeroMemory(*cOptions, sizeof(char *)*(uBound-lBound+1));
for(pos=lBound; (pos<=uBound) && SUCCEEDED(hr); ++pos )
{
BSTR option;
hr = SafeArrayGetElement(array, &pos, &option);
if( SUCCEEDED(hr) )
{
char *cOption = CStrFromBSTR(codePage, option);
(*cOptions)[pos-lBound] = cOption;
if( NULL == cOption )
hr = ( SysStringLen(option) > 0 ) ?
E_OUTOFMEMORY : E_INVALIDARG;
SysFreeString(option);
}
}
}
else
{
// unsupported type
return E_INVALIDARG;
}
*cOptionCount = pos-lBound;
if( FAILED(hr) )
{
// free already processed elements
freeTargetOptions(*cOptions, *cOptionCount);
}
}
else
{
// empty array
*cOptions = NULL;
*cOptionCount = 0;
return NOERROR;
}
}
return hr;
};
/*
** use VARIANT rather than a SAFEARRAY as argument type
** for compatibility with some scripting language (JScript)
*/
STDMETHODIMP VLCControl::addTarget( BSTR uri, VARIANT options, enum VLCPlaylistMode mode, int position)
{
if( 0 == SysStringLen(uri) )
return E_INVALIDARG;
HRESULT hr = E_UNEXPECTED;
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
char *cUri = CStrFromBSTR(CP_UTF8, uri);
if( NULL == cUri )
return E_OUTOFMEMORY;
int cOptionsCount;
char **cOptions;
if( FAILED(createTargetOptions(CP_UTF8, &options, &cOptions, &cOptionsCount)) )
return E_INVALIDARG;
if( VLC_SUCCESS <= VLC_AddTarget(i_vlc, cUri, (const char **)cOptions, cOptionsCount, mode, position) )
{
hr = NOERROR;
if( mode & PLAYLIST_GO )
_p_instance->fireOnPlayEvent();
}
else
{
hr = E_FAIL;
if( mode & PLAYLIST_GO )
_p_instance->fireOnStopEvent();
}
freeTargetOptions(cOptions, cOptionsCount);
CoTaskMemFree(cUri);
}
return hr;
};
STDMETHODIMP VLCControl::get_PlaylistIndex(int *index)
{
if( NULL == index )
return E_POINTER;
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
*index = VLC_PlaylistIndex(i_vlc);
return NOERROR;
}
*index = 0;
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::get_PlaylistCount(int *count)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
*count = VLC_PlaylistNumberOfItems(i_vlc);
return NOERROR;
}
*count = 0;
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::playlistNext(void)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
VLC_PlaylistNext(i_vlc);
return NOERROR;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::playlistPrev(void)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
VLC_PlaylistPrev(i_vlc);
return NOERROR;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::playlistClear(void)
{
int i_vlc = _p_instance->getVLCObject();
if( i_vlc )
{
VLC_PlaylistClear(i_vlc);
return NOERROR;
}
return E_UNEXPECTED;
};
STDMETHODIMP VLCControl::get_VersionInfo(BSTR *version)
{
if( NULL == version )
return E_POINTER;
const char *versionStr = VLC_Version();
if( NULL != versionStr )
{
*version = BSTRFromCStr(_p_instance->getCodePage(), versionStr);
return NULL == *version ? E_OUTOFMEMORY : NOERROR;
}
*version = NULL;
return E_FAIL;
};
STDMETHODIMP VLCControl::get_MRL(BSTR *mrl)
{
if( NULL == mrl )
return E_POINTER;
*mrl = SysAllocStringLen(_p_instance->getMRL(),
SysStringLen(_p_instance->getMRL()));
return NOERROR;
};
STDMETHODIMP VLCControl::put_MRL(BSTR mrl)
{
_p_instance->setMRL(mrl);
return S_OK;
};
STDMETHODIMP VLCControl::get_AutoPlay(VARIANT_BOOL *autoplay)
{
if( NULL == autoplay )
return E_POINTER;
*autoplay = _p_instance->getAutoPlay() ? VARIANT_TRUE: VARIANT_FALSE;
return S_OK;
};
STDMETHODIMP VLCControl::put_AutoPlay(VARIANT_BOOL autoplay)
{
_p_instance->setAutoPlay((VARIANT_FALSE != autoplay) ? TRUE: FALSE);
return S_OK;
};
STDMETHODIMP VLCControl::get_AutoLoop(VARIANT_BOOL *autoloop)
{
if( NULL == autoloop )
return E_POINTER;
*autoloop = _p_instance->getAutoLoop() ? VARIANT_TRUE: VARIANT_FALSE;
return S_OK;
};
STDMETHODIMP VLCControl::put_AutoLoop(VARIANT_BOOL autoloop)
{
_p_instance->setAutoLoop((VARIANT_FALSE != autoloop) ? TRUE: FALSE);
return S_OK;
};