winamp/Src/Winamp/CurrentSongCOM.cpp

318 lines
8.1 KiB
C++

/** (c) Nullsoft, Inc. C O N F I D E N T I A L
** Filename:
** Project:
** Description:
** Author: Ben Allison benski@nullsoft.com
** Created:
**/
#include "Main.h"
#include "CurrentSongCOM.h"
#include "../nu/AutoWide.h"
#include "Browser.h"
#include "JSAPI.h"
#include <malloc.h>
HANDLE DuplicateCurrentThread()
{
HANDLE fakeHandle = GetCurrentThread();
HANDLE copiedHandle = 0;
HANDLE processHandle = GetCurrentProcess();
DuplicateHandle(processHandle, fakeHandle, processHandle, &copiedHandle, 0, FALSE, DUPLICATE_SAME_ACCESS);
return copiedHandle;
}
enum
{
DISP_CURRENTSONG_GETFILENAME = 777,
DISP_CURRENTSONG_GETFILETITLE ,
DISP_CURRENTSONG_GETFILELENGTH,
DISP_CURRENTSONG_GETMETADATA ,
DISP_CURRENTSONG_GETPLAYPOSITION ,
DISP_CURRENTSONG_ISPLAYING ,
DISP_CURRENTSONG_ISSTOPPED ,
DISP_CURRENTSONG_ISPAUSED ,
DISP_CURRENTSONG_PAUSE ,
DISP_CURRENTSONG_RESUME,
DISP_CURRENTSONG_REGISTERMETADATACALLBACK,
DISP_CURRENTSONG_UNREGISTERMETADATACALLBACK,
DISP_CURRENTSONG_REGISTERTITLECHANGECALLBACK,
DISP_CURRENTSONG_UNREGISTERTITLECHANGECALLBACK,
DISP_CURRENTSONG_REFRESHTITLE,
};
#define CHECK_ID(str, id)\
if (CSTR_EQUAL == CompareStringW(lcid, NORM_IGNORECASE, rgszNames[i], -1, L##str, -1))\
{ rgdispid[i] = id; continue; }
HRESULT CurrentSongCOM::GetIDsOfNames(REFIID riid, OLECHAR FAR* FAR* rgszNames, unsigned int cNames, LCID lcid, DISPID FAR* rgdispid)
{
UNREFERENCED_PARAMETER(riid);
bool unknowns = false;
for (unsigned int i = 0;i != cNames;i++)
{
CHECK_ID("GetFilename", DISP_CURRENTSONG_GETFILENAME) // July 27, 2005
CHECK_ID("GetFileTitle", DISP_CURRENTSONG_GETFILETITLE) // July 27, 2005
CHECK_ID("GetFileLength", DISP_CURRENTSONG_GETFILELENGTH) // July 27, 2005
CHECK_ID("GetMetadata", DISP_CURRENTSONG_GETMETADATA) // July 27, 2005
CHECK_ID("GetPlayPosition", DISP_CURRENTSONG_GETPLAYPOSITION) // July 27, 2005
CHECK_ID("IsPlaying", DISP_CURRENTSONG_ISPLAYING) // July 27, 2005
CHECK_ID("IsStopped", DISP_CURRENTSONG_ISSTOPPED) // July 27, 2005
CHECK_ID("IsPaused", DISP_CURRENTSONG_ISPAUSED) // July 27, 2005
CHECK_ID("Pause", DISP_CURRENTSONG_PAUSE)
CHECK_ID("Resume", DISP_CURRENTSONG_RESUME)
CHECK_ID("RegisterMetadataCallback", DISP_CURRENTSONG_REGISTERMETADATACALLBACK)
CHECK_ID("UnregisterMetadataCallback", DISP_CURRENTSONG_UNREGISTERMETADATACALLBACK)
CHECK_ID("RegisterTitleChangeCallback", DISP_CURRENTSONG_REGISTERTITLECHANGECALLBACK)
CHECK_ID("UnregisterTitleChangeCallback", DISP_CURRENTSONG_UNREGISTERTITLECHANGECALLBACK)
CHECK_ID("RefreshTitle", DISP_CURRENTSONG_REFRESHTITLE)
rgdispid[i] = DISPID_UNKNOWN;
unknowns = true;
}
if (unknowns)
return DISP_E_UNKNOWNNAME;
else
return S_OK;
}
HRESULT CurrentSongCOM::GetTypeInfo(unsigned int itinfo, LCID lcid, ITypeInfo FAR* FAR* pptinfo)
{
UNREFERENCED_PARAMETER(itinfo);
UNREFERENCED_PARAMETER(lcid);
UNREFERENCED_PARAMETER(pptinfo);
return E_NOTIMPL;
}
HRESULT CurrentSongCOM::GetTypeInfoCount(unsigned int FAR * pctinfo)
{
UNREFERENCED_PARAMETER(pctinfo);
return E_NOTIMPL;
}
HRESULT CurrentSongCOM::Invoke(DISPID dispid, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS FAR *pdispparams, VARIANT FAR *pvarResult, EXCEPINFO FAR * pexecinfo, unsigned int FAR *puArgErr)
{
UNREFERENCED_PARAMETER(riid);
UNREFERENCED_PARAMETER(lcid);
UNREFERENCED_PARAMETER(wFlags);
UNREFERENCED_PARAMETER(pexecinfo);
switch (dispid)
{
case DISP_CURRENTSONG_REFRESHTITLE:
SendMessageW(hMainWindow, WM_WA_IPC, 0, IPC_UPDTITLE);
return S_OK;
case DISP_CURRENTSONG_REGISTERTITLECHANGECALLBACK:
return titleChangeCallbacks.RegisterFromDispParam(pdispparams, 0, puArgErr);
case DISP_CURRENTSONG_UNREGISTERTITLECHANGECALLBACK:
return titleChangeCallbacks.UnregisterFromDispParam(pdispparams, 0, puArgErr);
case DISP_CURRENTSONG_REGISTERMETADATACALLBACK:
return metadataCallbacks.RegisterFromDispParam(pdispparams, 0, puArgErr);
case DISP_CURRENTSONG_UNREGISTERMETADATACALLBACK:
return metadataCallbacks.UnregisterFromDispParam(pdispparams, 0, puArgErr);
case DISP_CURRENTSONG_GETMETADATA:
JSAPI_VERIFY_METHOD(wFlags);
JSAPI_VERIFY_PARAMCOUNT(pdispparams, 1);
JSAPI_VERIFY_PARAMTYPE(pdispparams, 1, VT_BSTR, puArgErr);
JSAPI_INIT_RESULT(pvarResult, VT_BSTR);
{
wchar_t buffer[4096] = {0};
extendedFileInfoStructW info;
info.filename = FileName;
info.metadata = pdispparams->rgvarg[0].bstrVal;
info.ret = buffer;
info.retlen = sizeof(buffer)/sizeof(wchar_t);
if (NULL != info.filename &&
NULL != info.metadata)
{
if (0 == SendMessageW(hMainWindow, WM_WA_IPC, (WPARAM)&info, IPC_GET_EXTENDED_FILE_INFOW_HOOKABLE))
info.ret = NULL;
JSAPI_SET_RESULT(pvarResult, bstrVal, SysAllocString(info.ret));
}
else
JSAPI_EMPTY_RESULT(pvarResult);
return S_OK;
}
break;
case DISP_CURRENTSONG_GETFILENAME:
{
BSTR name = SysAllocString(FileName);
VariantInit(pvarResult);
V_VT(pvarResult) = VT_BSTR;
V_BSTR(pvarResult) = name;
return S_OK;
}
break;
case DISP_CURRENTSONG_GETFILETITLE:
{
BSTR title = SysAllocString(FileTitle);
VariantInit(pvarResult);
V_VT(pvarResult) = VT_BSTR;
V_BSTR(pvarResult) = title;
return S_OK;
}
break;
case DISP_CURRENTSONG_GETFILELENGTH:
VariantInit(pvarResult);
V_VT(pvarResult) = VT_I4;
V_I4(pvarResult) = in_getlength();
return S_OK;
case DISP_CURRENTSONG_GETPLAYPOSITION:
VariantInit(pvarResult);
V_VT(pvarResult) = VT_I4;
V_I4(pvarResult) = in_getouttime();
return S_OK;
case DISP_CURRENTSONG_ISPLAYING:
VariantInit(pvarResult);
V_VT(pvarResult) = VT_BOOL;
V_BOOL(pvarResult) = (0 != playing) ? VARIANT_TRUE : VARIANT_FALSE;
return S_OK;
case DISP_CURRENTSONG_ISSTOPPED:
VariantInit(pvarResult);
V_VT(pvarResult) = VT_BOOL;
V_BOOL(pvarResult) = (0 == playing) ? VARIANT_TRUE : VARIANT_FALSE;
return S_OK;
case DISP_CURRENTSONG_ISPAUSED:
VariantInit(pvarResult);
V_VT(pvarResult) = VT_BOOL;
V_BOOL(pvarResult) = (0 != paused) ? VARIANT_TRUE : VARIANT_FALSE;
return S_OK;
case DISP_CURRENTSONG_PAUSE:
PausePlaying();
return S_OK;
case DISP_CURRENTSONG_RESUME:
UnPausePlaying();
return S_OK;
}
return DISP_E_MEMBERNOTFOUND;
}
STDMETHODIMP CurrentSongCOM::QueryInterface(REFIID riid, PVOID *ppvObject)
{
if (!ppvObject)
return E_POINTER;
else if (IsEqualIID(riid, IID_IDispatch))
*ppvObject = (IDispatch *)this;
else if (IsEqualIID(riid, IID_IUnknown))
*ppvObject = this;
else
{
*ppvObject = NULL;
return E_NOINTERFACE;
}
AddRef();
return S_OK;
}
ULONG CurrentSongCOM::AddRef(void)
{
return 0;
}
ULONG CurrentSongCOM::Release(void)
{
return 0;
}
static void TitleChanged_NotifyCb(IDispatch *dispatch, void *param)
{
UNREFERENCED_PARAMETER(param);
DISPPARAMS params;
unsigned int ret;
if (NULL == dispatch)
return;
params.cArgs = 0;
params.cNamedArgs = 0;
params.rgdispidNamedArgs = 0;
params.rgvarg = 0;
if (!(config_no_visseh&8))
{
try
{
dispatch->Invoke(0, GUID_NULL, 0, DISPATCH_METHOD, &params, 0, 0, &ret);
}
catch (...)
{}
}
else
dispatch->Invoke(0, GUID_NULL, 0, DISPATCH_METHOD, &params, 0, 0, &ret);
}
void CurrentSongCOM::TitleChanged()
{
titleChangeCallbacks.Notify(TitleChanged_NotifyCb, NULL, NULL);
}
static void MetadataChanged_NotifyCb(IDispatch *dispatch, void *param)
{
VARIANT argument;
DISPPARAMS params;
if (NULL == dispatch)
return;
VariantInit(&argument);
V_VT(&argument) = VT_BSTR;
V_BSTR(&argument) = (BSTR)param;
params.cArgs = 1;
params.cNamedArgs = 0;
params.rgdispidNamedArgs = NULL;
params.rgvarg = &argument;
unsigned int ret;
if (!(config_no_visseh&8))
{
try
{
dispatch->Invoke(0, GUID_NULL, 0, DISPATCH_METHOD, &params, 0, 0, &ret);
}
catch (...)
{}
}
else
dispatch->Invoke(0, GUID_NULL, 0, DISPATCH_METHOD, &params, 0, 0, &ret);
}
static void MetadataChanged_FreeCb(void *param)
{
BSTR bstr = (BSTR)param;
SysFreeString(bstr);
}
void CurrentSongCOM::MetadataChanged(char *metadataString)
{
AutoWide wideMetadata(metadataString);
BSTR bstr = SysAllocString(wideMetadata);
metadataCallbacks.Notify(MetadataChanged_NotifyCb, MetadataChanged_FreeCb, bstr);
}