reactos/dll/shellext/fontext/CFontMenu.cpp

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/*
* PROJECT: ReactOS Font Shell Extension
* LICENSE: GPL-2.0-or-later (https://spdx.org/licenses/GPL-2.0-or-later)
* PURPOSE: CFontMenu implementation
* COPYRIGHT: Copyright 2019,2020 Mark Jansen (mark.jansen@reactos.org)
*/
#include "precomp.h"
WINE_DEFAULT_DEBUG_CHANNEL(fontext);
static CLIPFORMAT g_cfHIDA;
HRESULT _GetCidlFromDataObject(IDataObject *pDataObject, CIDA** ppcida)
{
if (g_cfHIDA == NULL)
{
g_cfHIDA = (CLIPFORMAT)RegisterClipboardFormatW(CFSTR_SHELLIDLIST);
}
FORMATETC fmt = { g_cfHIDA, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL };
STGMEDIUM medium;
HRESULT hr = pDataObject->GetData(&fmt, &medium);
if (FAILED_UNEXPECTEDLY(hr))
return hr;
LPVOID lpSrc = GlobalLock(medium.hGlobal);
SIZE_T cbSize = GlobalSize(medium.hGlobal);
*ppcida = (CIDA *)::CoTaskMemAlloc(cbSize);
if (*ppcida)
{
memcpy(*ppcida, lpSrc, cbSize);
hr = S_OK;
}
else
{
hr = E_FAIL;
}
ReleaseStgMedium(&medium);
return hr;
}
const char* DFM_TO_STR(UINT uMsg)
{
switch(uMsg)
{
case DFM_MERGECONTEXTMENU: return "DFM_MERGECONTEXTMENU";
case DFM_INVOKECOMMAND: return "DFM_INVOKECOMMAND";
case DFM_MODIFYQCMFLAGS: return "DFM_MODIFYQCMFLAGS";
case DFM_MERGECONTEXTMENU_TOP: return "DFM_MERGECONTEXTMENU_TOP";
case DFM_MERGECONTEXTMENU_BOTTOM: return "DFM_MERGECONTEXTMENU_BOTTOM";
case DFM_GETHELPTEXTW: return "DFM_GETHELPTEXTW";
case DFM_GETVERBW: return "DFM_GETVERBW";
case DFM_GETVERBA: return "DFM_GETVERBA";
case DFM_WM_INITMENUPOPUP: return "DFM_WM_INITMENUPOPUP";
case DFM_INVOKECOMMANDEX: return "DFM_INVOKECOMMANDEX";
case DFM_GETDEFSTATICID: return "DFM_GETDEFSTATICID";
case 3: return "MENU_BEGIN";
case 4: return "MENU_END";
default: return "";
}
}
static void RunFontViewer(HWND hwnd, const FontPidlEntry* fontEntry)
{
WCHAR FontViewerPath[MAX_PATH] = L"%SystemRoot%\\System32\\fontview.exe";
WCHAR FontPathArg[MAX_PATH + 3];
CStringW Path = g_FontCache->Filename(fontEntry, true);
if (!Path.IsEmpty())
{
// '/d' disables the install button
StringCchPrintfW(FontPathArg, _countof(FontPathArg), L"/d %s", Path.GetString());
PathQuoteSpacesW(FontPathArg + 3);
SHELLEXECUTEINFOW si = { sizeof(si) };
si.fMask = SEE_MASK_DOENVSUBST;
si.hwnd = hwnd;
si.lpFile = FontViewerPath;
si.lpParameters = FontPathArg;
si.nShow = SW_SHOWNORMAL;
ShellExecuteExW(&si);
}
}
static HRESULT CALLBACK FontFolderMenuCallback(IShellFolder *psf, HWND hwnd, IDataObject *pdtobj,
UINT uMsg, WPARAM wParam, LPARAM lParam)
{
TRACE("FontFolderMenuCallback(%u {%s})\n", uMsg, DFM_TO_STR(uMsg));
switch (uMsg)
{
case DFM_MERGECONTEXTMENU:
{
QCMINFO *pqcminfo = (QCMINFO *)lParam;
CStringW menuText(MAKEINTRESOURCEW(IDS_FONT_PREVIEW));
MENUITEMINFOW cmi = { sizeof(cmi) };
cmi.fMask = MIIM_ID | MIIM_STRING | MIIM_STATE;
cmi.fType = MFT_STRING;
cmi.fState = MFS_DEFAULT;
cmi.wID = pqcminfo->idCmdFirst++;
cmi.dwTypeData = (LPWSTR)menuText.GetString();
InsertMenuItemW(pqcminfo->hmenu, pqcminfo->indexMenu, TRUE, &cmi);
return S_OK;
}
case DFM_INVOKECOMMAND:
// Preview is the only item we can handle
if (wParam == 0)
{
CComHeapPtr<CIDA> cida;
HRESULT hr = _GetCidlFromDataObject(pdtobj, &cida);
if (FAILED_UNEXPECTEDLY(hr))
return hr;
for (UINT n = 0; n < cida->cidl; ++n)
{
const FontPidlEntry* fontEntry = _FontFromIL(HIDA_GetPIDLItem(cida, n));
RunFontViewer(hwnd, fontEntry);
}
return S_OK;
}
return S_FALSE;
case DFM_INVOKECOMMANDEX:
return E_NOTIMPL;
case DFM_GETDEFSTATICID: // Required for Windows 7 to pick a default
return S_FALSE;
}
return E_NOTIMPL;
}
HRESULT _CFontMenu_CreateInstance(HWND hwnd, UINT cidl, PCUITEMID_CHILD_ARRAY apidl,
IShellFolder *psf, REFIID riid, LPVOID* ppvOut)
{
if (cidl > 0)
{
HKEY keys[1] = {0};
int nkeys = 0;
CComPtr<IContextMenu> spMenu;
// Use the default context menu handler, but augment it from the callbacks
HRESULT hr = CDefFolderMenu_Create2(NULL, hwnd, cidl, apidl, psf, FontFolderMenuCallback, nkeys, keys, &spMenu);
if (FAILED_UNEXPECTEDLY(hr))
return hr;
// See if the requested interface (e.g. IContextMenu3) is also available
return spMenu->QueryInterface(riid, ppvOut);
}
// We can't create a background menu
return E_FAIL;
}