Source code of Windows XP (NT5)
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#include "shellprv.h"
#pragma hdrstop
#include "basefvcb.h"
#include "mergfldr.h"
#include "enumidlist.h"
#include "ids.h"
#include "cdburn.h"
#include "contextmenu.h"
#include "datautil.h"
STDAPI CCDBurnFolder_CreateInstance(IUnknown *punkOuter, REFIID riid, void **ppv);
class CCDBurnFolder;
HRESULT CCDBurnFolder_CreateSFVCB(CCDBurnFolder* pcdsf, IShellFolderViewCB** ppsfvcb);
class CCDBurnFolder : public CMergedFolder
{
public:
// IUnknown
STDMETHOD (QueryInterface)(REFIID riid, void **ppv) { return CMergedFolder::QueryInterface(riid,ppv); }
STDMETHOD_(ULONG, AddRef)() { return CMergedFolder::AddRef(); }
STDMETHOD_(ULONG, Release)() { return CMergedFolder::Release(); }
// IShellFolder
STDMETHOD(CreateViewObject)(HWND hwndOwner, REFIID riid, void **ppvOut);
// IItemNameLimits
STDMETHOD(GetValidCharacters)(LPWSTR *ppwszValidChars, LPWSTR *ppwszInvalidChars);
STDMETHOD(GetMaxLength)(LPCWSTR pszName, int *piMaxNameLen);
protected:
CCDBurnFolder(CMergedFolder *pmfParent) : CMergedFolder(pmfParent, CLSID_CDBurnFolder) {};
friend HRESULT CCDBurnFolder_CreateInstance(IUnknown *punkOuter, REFIID riid, void **ppv);
virtual HRESULT _CreateWithCLSID(CLSID clsid, CMergedFolder **ppmf);
virtual BOOL _ShouldSuspend(REFGUID rguid);
private:
HRESULT _CreateContextMenu(IContextMenu **ppcm);
};
STDAPI CCDBurnFolder_CreateInstance(IUnknown *punkOuter, REFIID riid, void **ppv)
{
// class factory enforces non-aggregation for us
HRESULT hr = E_OUTOFMEMORY;
CCDBurnFolder *p = new CCDBurnFolder(NULL);
if (p)
{
hr = p->QueryInterface(riid, ppv);
p->Release();
}
return hr;
}
HRESULT CCDBurnFolder::_CreateContextMenu(IContextMenu **ppcm)
{
IShellExtInit *psei;
HRESULT hr = CoCreateInstance(CLSID_CDBurn, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARG(IShellExtInit, &psei));
if (SUCCEEDED(hr))
{
IDataObject *pdo;
hr = SHGetUIObjectOf(_pidl, NULL, IID_PPV_ARG(IDataObject, &pdo));
if (SUCCEEDED(hr))
{
hr = psei->Initialize(NULL, pdo, NULL);
if (SUCCEEDED(hr))
{
hr = psei->QueryInterface(IID_PPV_ARG(IContextMenu, ppcm));
}
pdo->Release();
}
psei->Release();
}
return hr;
}
STDMETHODIMP CCDBurnFolder::CreateViewObject(HWND hwnd, REFIID riid, void **ppv)
{
HRESULT hr;
if (IsEqualIID(riid, IID_IShellView))
{
IShellFolderViewCB* psfvcb;
hr = CCDBurnFolder_CreateSFVCB(this, &psfvcb);
if (SUCCEEDED(hr))
{
SFV_CREATE csfv = {0};
csfv.cbSize = sizeof(csfv);
csfv.pshf = SAFECAST(this, IAugmentedShellFolder2*);
csfv.psfvcb = psfvcb;
hr = SHCreateShellFolderView(&csfv, (IShellView **)ppv);
psfvcb->Release();
}
}
else if (IsEqualIID(riid, IID_IContextMenu))
{
IContextMenu *pcmBase;
hr = CMergedFolder::CreateViewObject(hwnd, IID_PPV_ARG(IContextMenu, &pcmBase));
if (SUCCEEDED(hr))
{
IContextMenu *pcmCD;
hr = _CreateContextMenu(&pcmCD);
if (SUCCEEDED(hr))
{
IContextMenu* rgpcm[] = { pcmCD, pcmBase };
hr = Create_ContextMenuOnContextMenuArray(rgpcm, ARRAYSIZE(rgpcm), riid, ppv);
pcmCD->Release();
}
pcmBase->Release();
}
}
else
{
hr = CMergedFolder::CreateViewObject(hwnd, riid, ppv);
}
return hr;
}
// IItemNameLimits
HRESULT CCDBurnFolder::GetValidCharacters(LPWSTR *ppwszValidChars, LPWSTR *ppwszInvalidChars)
{
*ppwszValidChars = NULL;
return SHStrDup(INVALID_JOLIETNAME_CHARS, ppwszInvalidChars);
}
HRESULT CCDBurnFolder::GetMaxLength(LPCWSTR pszName, int *piMaxNameLen)
{
*piMaxNameLen = 64;
return S_OK;
}
HRESULT CCDBurnFolder::_CreateWithCLSID(CLSID clsid, CMergedFolder **ppmf)
{
*ppmf = new CCDBurnFolder(this);
return *ppmf ? S_OK : E_OUTOFMEMORY;
}
HRESULT _CDGetState(DWORD *pdwCaps, BOOL *pfUDF, BOOL *pfInStaging, BOOL *pfOnMedia)
{
ICDBurnPriv *pcdbp;
HRESULT hr = SHCoCreateInstance(NULL, &CLSID_CDBurn, NULL, IID_PPV_ARG(ICDBurnPriv, &pcdbp));
if (SUCCEEDED(hr))
{
hr = pcdbp->GetMediaCapabilities(pdwCaps, pfUDF);
if (SUCCEEDED(hr))
{
hr = pcdbp->GetContentState(pfInStaging, pfOnMedia);
}
pcdbp->Release();
}
return hr;
}
BOOL CCDBurnFolder::_ShouldSuspend(REFGUID rguid)
{
BOOL fShouldSuspend = FALSE;
if (IsEqualGUID(rguid, CLSID_StagingFolder))
{
// this gets called a lot, short circuit the cocreate and go direct to the data.
CDBurn_GetUDFState(&fShouldSuspend);
}
return fShouldSuspend;
}
class CCDBurnFolderViewCB : public CMergedFolderViewCB
{
public:
STDMETHODIMP RealMessage(UINT uMsg, WPARAM wParam, LPARAM lParam);
// IUnknown
STDMETHODIMP QueryInterface(REFIID riid, void **ppv) { return CMergedFolderViewCB::QueryInterface(riid,ppv); }
STDMETHODIMP_(ULONG) AddRef(void) { return CMergedFolderViewCB::AddRef(); }
STDMETHODIMP_(ULONG) Release(void) { return CMergedFolderViewCB::Release(); }
private:
CCDBurnFolderViewCB(CCDBurnFolder* pcdsf);
~CCDBurnFolderViewCB();
friend HRESULT CCDBurnFolder_CreateSFVCB(CCDBurnFolder* pcdsf, IShellFolderViewCB** ppsfvcb);
CCDBurnFolder* _pcdsf;
HRESULT OnGetWebViewLayout(DWORD pv, UINT uViewMode, SFVM_WEBVIEW_LAYOUT_DATA* pData);
HRESULT OnGetWebViewContent(DWORD pv, SFVM_WEBVIEW_CONTENT_DATA* pData);
HRESULT OnGetWebViewTasks(DWORD pv, SFVM_WEBVIEW_TASKSECTION_DATA* pTasks);
HRESULT OnGetWorkingDir(DWORD pv, UINT cch, PWSTR pszDir);
public:
// Web View Task implementations
static HRESULT _CanBurn(IUnknown* pv, IShellItemArray *psiItemArray, BOOL fOkToBeSlow, UISTATE* puisState);
static HRESULT _CanClear(IUnknown* pv, IShellItemArray *psiItemArray, BOOL fOkToBeSlow, UISTATE* puisState);
static HRESULT _CanErase(IUnknown* pv, IShellItemArray *psiItemArray, BOOL fOkToBeSlow, UISTATE* puisState);
static HRESULT _OnCDBurn(IUnknown* pv, IShellItemArray *psiItemArray, IBindCtx *pbc);
static HRESULT _OnCDClearStaging(IUnknown* pv,IShellItemArray *psiItemArray, IBindCtx *pbc);
static HRESULT _OnCDErase(IUnknown* pv, IShellItemArray *psiItemArray, IBindCtx *pbc);
};
CCDBurnFolderViewCB::CCDBurnFolderViewCB(CCDBurnFolder* pcdsf) : CMergedFolderViewCB((CMergedFolder*)pcdsf)
{
_pcdsf = pcdsf;
_pcdsf->AddRef();
}
CCDBurnFolderViewCB::~CCDBurnFolderViewCB()
{
_pcdsf->Release();
}
HRESULT CCDBurnFolder_CreateSFVCB(CCDBurnFolder* pcdsf, IShellFolderViewCB** ppsfvcb)
{
HRESULT hr;
CCDBurnFolderViewCB* p = new CCDBurnFolderViewCB(pcdsf);
if (p)
{
*ppsfvcb = SAFECAST(p, IShellFolderViewCB*);
hr = S_OK;
}
else
{
*ppsfvcb = NULL;
hr = E_OUTOFMEMORY;
}
return hr;
}
STDMETHODIMP CCDBurnFolderViewCB::RealMessage(UINT uMsg, WPARAM wParam, LPARAM lParam)
{
switch (uMsg)
{
HANDLE_MSG(0, SFVM_GETWEBVIEWLAYOUT, OnGetWebViewLayout);
HANDLE_MSG(0, SFVM_GETWEBVIEWCONTENT, OnGetWebViewContent);
HANDLE_MSG(0, SFVM_GETWEBVIEWTASKS, OnGetWebViewTasks);
HANDLE_MSG(0, SFVM_GETWORKINGDIR, OnGetWorkingDir);
default:
return CMergedFolderViewCB::RealMessage(uMsg, wParam, lParam);
}
return S_OK;
}
HRESULT CCDBurnFolderViewCB::OnGetWebViewLayout(DWORD pv, UINT uViewMode, SFVM_WEBVIEW_LAYOUT_DATA* pData)
{
ZeroMemory(pData, sizeof(*pData));
pData->dwLayout = SFVMWVL_NORMAL | SFVMWVL_FILES;
return S_OK;
}
HRESULT CCDBurnFolderViewCB::_CanBurn(IUnknown* pv, IShellItemArray *psiItemArray, BOOL fOkToBeSlow, UISTATE* puisState)
{
*puisState = UIS_DISABLED;
BOOL fUDF;
if (SUCCEEDED(_CDGetState(NULL, &fUDF, NULL, NULL)))
{
// UDF is the only thing we check for now, we allow burn wizard to kick off without media or files
if (!fUDF)
{
*puisState = UIS_ENABLED;
}
}
return S_OK;
}
HRESULT CCDBurnFolderViewCB::_CanClear(IUnknown* pv, IShellItemArray *psiItemArray, BOOL fOkToBeSlow, UISTATE* puisState)
{
*puisState = UIS_DISABLED;
BOOL fInStaging, fUDF;
if (SUCCEEDED(_CDGetState(NULL, &fUDF, &fInStaging, NULL)))
{
if (fInStaging && !fUDF)
{
*puisState = UIS_ENABLED;
}
}
return S_OK;
}
HRESULT CCDBurnFolderViewCB::_CanErase(IUnknown* pv, IShellItemArray *psiItemArray, BOOL fOkToBeSlow, UISTATE* puisState)
{
*puisState = UIS_DISABLED;
DWORD dwCaps;
BOOL fOnMedia, fUDF;
if (SUCCEEDED(_CDGetState(&dwCaps, &fUDF, NULL, &fOnMedia)))
{
if ((dwCaps & HWDMC_CDREWRITABLE) && (fOnMedia || fUDF))
{
*puisState = UIS_ENABLED;
}
}
return S_OK;
}
HRESULT _InvokeVerbOnCDBurn(HWND hwnd, LPCSTR pszVerb)
{
IContextMenu *pcm;
HRESULT hr = CoCreateInstance(CLSID_CDBurn, NULL, CLSCTX_INPROC_SERVER, IID_PPV_ARG(IContextMenu, &pcm));
if (SUCCEEDED(hr))
{
hr = SHInvokeCommandOnContextMenu(hwnd, NULL, pcm, 0, pszVerb);
pcm->Release();
}
return hr;
}
HRESULT CCDBurnFolderViewCB::_OnCDBurn(IUnknown* pv, IShellItemArray *psiItemArray, IBindCtx *pbc)
{
CCDBurnFolderViewCB* pThis = (CCDBurnFolderViewCB*)(void*)pv;
return _InvokeVerbOnCDBurn(pThis->_hwndMain, "burn");
}
HRESULT CCDBurnFolderViewCB::_OnCDClearStaging(IUnknown* pv, IShellItemArray *psiItemArray, IBindCtx *pbc)
{
CCDBurnFolderViewCB* pThis = (CCDBurnFolderViewCB*)(void*)pv;
return _InvokeVerbOnCDBurn(pThis->_hwndMain, "cleanup");
}
HRESULT CCDBurnFolderViewCB::_OnCDErase(IUnknown* pv,IShellItemArray *psiItemArray, IBindCtx *pbc)
{
CCDBurnFolderViewCB* pThis = (CCDBurnFolderViewCB*)(void*)pv;
return _InvokeVerbOnCDBurn(pThis->_hwndMain, "erase");
}
const WVTASKITEM c_CDBurnTaskHeader = WVTI_HEADER(L"shell32.dll", IDS_HEADER_CDBURN, IDS_HEADER_CDBURN_TT);
const WVTASKITEM c_CDBurnTaskList[] =
{
WVTI_ENTRY_ALL(CLSID_NULL, L"shell32.dll", IDS_TASK_BURNCD, IDS_TASK_BURNCD_TT, IDI_TASK_BURNCD, CCDBurnFolderViewCB::_CanBurn, CCDBurnFolderViewCB::_OnCDBurn),
WVTI_ENTRY_ALL(CLSID_NULL, L"shell32.dll", IDS_TASK_CLEARBURNAREA, IDS_TASK_CLEARBURNAREA_TT, IDI_TASK_CLEARBURNAREA, CCDBurnFolderViewCB::_CanClear, CCDBurnFolderViewCB::_OnCDClearStaging),
WVTI_ENTRY_ALL(CLSID_NULL, L"shell32.dll", IDS_TASK_ERASECDFILES, IDS_TASK_ERASECDFILES_TT, IDI_TASK_ERASECDFILES, CCDBurnFolderViewCB::_CanErase, CCDBurnFolderViewCB::_OnCDErase),
};
HRESULT CCDBurnFolderViewCB::OnGetWebViewContent(DWORD pv, SFVM_WEBVIEW_CONTENT_DATA* pData)
{
ZeroMemory(pData, sizeof(*pData));
Create_IUIElement(&c_CDBurnTaskHeader, &(pData->pSpecialTaskHeader));
return S_OK;
}
HRESULT CCDBurnFolderViewCB::OnGetWebViewTasks(DWORD pv, SFVM_WEBVIEW_TASKSECTION_DATA* pTasks)
{
ZeroMemory(pTasks, sizeof(*pTasks));
pTasks->dwUpdateFlags = SFVMWVTSDF_CONTENTSCHANGE;
Create_IEnumUICommand((IUnknown*)(void*)this, c_CDBurnTaskList, ARRAYSIZE(c_CDBurnTaskList), &pTasks->penumSpecialTasks);
return S_OK;
}
HRESULT CCDBurnFolderViewCB::OnGetWorkingDir(DWORD pv, UINT cch, PWSTR pszDir)
{
HRESULT hr = E_FAIL;
DWORD dwNSId;
GUID guid;
IShellFolder *psf;
BOOL fDone = FALSE;
for (DWORD dwIndex = 0;
!fDone && SUCCEEDED(_pmf->EnumNameSpace(dwIndex, &dwNSId)) && SUCCEEDED(_pmf->QueryNameSpace(dwNSId, &guid, &psf));
dwIndex++)
{
if (IsEqualGUID(guid, CLSID_CDBurn))
{
LPITEMIDLIST pidl;
hr = SHGetIDListFromUnk(psf, &pidl);
if (SUCCEEDED(hr))
{
WCHAR sz[MAX_PATH];
hr = SHGetPathFromIDList(pidl, sz) ? S_OK : E_FAIL;
if (SUCCEEDED(hr))
{
lstrcpyn(pszDir, sz, cch);
}
ILFree(pidl);
}
fDone = TRUE;
}
psf->Release();
}
return hr;
}