480 lines
13 KiB
C
480 lines
13 KiB
C
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#include "shellprv.h"
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#pragma hdrstop
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#include "datautil.h"
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//
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// This function is a callback function from property sheet page extensions.
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//
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BOOL CALLBACK _AddPropSheetPage(HPROPSHEETPAGE hpage, LPARAM lParam)
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{
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PROPSHEETHEADER * ppsh = (PROPSHEETHEADER *)lParam;
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if (ppsh->nPages < MAX_FILE_PROP_PAGES)
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{
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ppsh->phpage[ppsh->nPages++] = hpage;
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return TRUE;
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}
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return FALSE;
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}
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//
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// This function enumerates all the property sheet page extensions for
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// specified class and let them add pages.
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//
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//
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int DCA_AppendClassSheetInfo(HDCA hdca, HKEY hkeyProgID, LPPROPSHEETHEADER ppsh, IDataObject *pdtobj)
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{
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int i, iStart = -1;
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for (i = 0; i < DCA_GetItemCount(hdca); i++)
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{
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IShellExtInit *psei;
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// These came from HKCR hence need to go through administrator approval
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if (DCA_ExtCreateInstance(hdca, i, &IID_IShellExtInit, &psei) == NOERROR)
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{
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IShellPropSheetExt *pspse;
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if (SUCCEEDED(psei->lpVtbl->Initialize(psei, NULL, pdtobj, hkeyProgID))
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&& SUCCEEDED(psei->lpVtbl->QueryInterface(psei, &IID_IShellPropSheetExt, &pspse)))
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{
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int nPagesSave = ppsh->nPages;
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HRESULT hres = pspse->lpVtbl->AddPages(pspse, _AddPropSheetPage, (LPARAM)ppsh);
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if (SUCCEEDED(hres) && hres != S_OK)
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{
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// Some shell extensions get confused and return S_FALSE when
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// they didn't add anything, unaware that S_FALSE means "Please
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// take the page I added and make it the default". So ignore
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// the return value if it is out of range.
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DWORD nPagesAdded = ppsh->nPages - nPagesSave;
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DWORD nPageWanted = hres - 1;
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if (nPageWanted < nPagesAdded)
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iStart = nPagesSave + nPageWanted;
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}
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pspse->lpVtbl->Release(pspse);
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}
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psei->lpVtbl->Release(psei);
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}
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}
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return iStart;
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}
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HWND FindStubForPidlClass(LPCITEMIDLIST pidl, int iClass)
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{
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HWND hwnd;
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if (!pidl)
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return NULL;
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for (hwnd = FindWindow(c_szStubWindowClass, NULL); hwnd; hwnd = GetWindow(hwnd, GW_HWNDNEXT))
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{
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TCHAR szClass[80];
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// find stub windows only
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GetClassName(hwnd, szClass, ARRAYSIZE(szClass));
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if (lstrcmpi(szClass, c_szStubWindowClass) == 0)
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{
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HANDLE hClassPidl;
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DWORD dwProcId;
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DWORD_PTR dwResult;
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GetWindowThreadProcessId(hwnd, &dwProcId);
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// since a propsheet could be doing work & not pumping messages, use a timeout
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// we can almost just do this: hClassPidl = GetWindowLongPtr(hwnd, 0)
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if (!SendMessageTimeout(hwnd, STUBM_GETDATA, 0, 0, SMTO_BLOCK, 3000, &dwResult))
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continue;
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hClassPidl = (HANDLE)dwResult;
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if (hClassPidl)
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{
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LPBYTE lpb = (LPBYTE)SHLockShared(hClassPidl, dwProcId);
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if (lpb)
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{
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int iClassFound = *(int *)lpb;
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if (iClassFound == iClass &&
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ILIsEqual(pidl, (LPITEMIDLIST)(lpb + sizeof(int))) )
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{
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SHUnlockShared(lpb);
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return hwnd;
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}
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SHUnlockShared(lpb);
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}
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}
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}
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}
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return NULL;
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}
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HANDLE _StuffStubWindow(HWND hwnd, LPITEMIDLIST pidlT, int iClass)
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{
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DWORD dwProcId;
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HANDLE hSharedClassPidl;
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UINT uidlSize;
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uidlSize = ILGetSize(pidlT);
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GetWindowThreadProcessId(hwnd, &dwProcId);
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hSharedClassPidl = SHAllocShared(NULL, sizeof(int)+uidlSize, dwProcId);
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if (hSharedClassPidl)
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{
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LPBYTE lpb = SHLockShared(hSharedClassPidl, dwProcId);
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if (lpb)
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{
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*(int *)lpb = iClass;
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memcpy(lpb+sizeof(int),pidlT, uidlSize);
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SHUnlockShared(lpb);
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SendMessage(hwnd, STUBM_SETDATA, (WPARAM)hSharedClassPidl, 0);
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return hSharedClassPidl;
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}
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SHFreeShared(hSharedClassPidl, dwProcId);
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}
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return NULL;
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}
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//
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// Make sure we are the only stub window for this pidl/class.
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//
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// If so, saves information in the UNIQUESTUBINFO structure which keeps
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// track of the uniqueness key. After you are done, you must pass the
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// UNIQUESTUBINFO structure to FreeUniqueStub() to clean up the uniqueness
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// key and destroy the stub window. Returns TRUE.
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//
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// If a stub window already exists for this pidl/class, then sets focus
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// to the existing window that matches our uniqueness key and returns FALSE.
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//
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// In low memory conditions, plays it safe and declares the pidl/class
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// unique.
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//
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//
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// Example:
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//
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// UNIQUESTUBINFO usi;
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// if (EnsureUniqueStub(pidl, STUBCLASS_PROPSHEET, NULL, &usi)) {
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// DoStuff(usi.hwndStub, pidl);
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// FreeUniqueStub(&usi);
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// }
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//
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STDAPI_(BOOL)
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EnsureUniqueStub(LPITEMIDLIST pidl, int iClass, POINT *ppt, UNIQUESTUBINFO *pusi)
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{
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HWND hwndOther;
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ZeroMemory(pusi, sizeof(UNIQUESTUBINFO));
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hwndOther = FindStubForPidlClass(pidl, iClass);
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if (hwndOther)
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{
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SwitchToThisWindow(GetLastActivePopup(hwndOther), TRUE);
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return FALSE;
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}
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else
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{ // Tag ourselves as the unique stub for this pidl/class
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pusi->hwndStub = _CreateStubWindow(ppt, NULL);
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// If no pidl, then nothing to tag *with*
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// If no stub window, then nothing to attach the tag *to*
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// But they are both still considered success.
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if (pusi->hwndStub && pidl)
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{
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SHFILEINFO sfi;
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pusi->hClassPidl = _StuffStubWindow(pusi->hwndStub, pidl, iClass);
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if (SHGetFileInfo((LPCTSTR)pidl, 0, &sfi, sizeof(sfi), SHGFI_ICON | SHGFI_PIDL)) {
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pusi->hicoStub = sfi.hIcon;
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// Cannot stuff the title because the window might belong to another process
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SendMessage(pusi->hwndStub, STUBM_SETICONTITLE, (WPARAM)pusi->hicoStub, 0);
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}
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}
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return TRUE;
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}
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}
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STDAPI_(void) FreeUniqueStub(UNIQUESTUBINFO *pusi)
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{
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if (pusi->hwndStub)
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DestroyWindow(pusi->hwndStub);
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if (pusi->hClassPidl)
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SHFreeShared(pusi->hClassPidl, GetCurrentProcessId());
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if (pusi->hicoStub)
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DestroyIcon(pusi->hicoStub);
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}
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BOOL _IsAnyDuplicatedKey(HKEY ahkeys[], UINT ckeys, HKEY hkey)
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{
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UINT ikey;
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for (ikey=0; ikey<ckeys; ikey++)
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{
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if (ahkeys[ikey]==hkey) {
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return TRUE;
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}
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}
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return FALSE;
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}
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STDAPI_(BOOL) SHOpenPropSheet(
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LPCTSTR pszCaption,
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HKEY ahkeys[],
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UINT ckeys,
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const CLSID * pclsidDef, OPTIONAL
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IDataObject *pdtobj,
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IShellBrowser * psb,
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LPCTSTR pStartPage) OPTIONAL
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{
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BOOL fSuccess = FALSE;
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BOOL fUnique;
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PROPSHEETHEADER psh;
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HPROPSHEETPAGE ahpage[MAX_FILE_PROP_PAGES];
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HWND hwndStub = NULL;
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STGMEDIUM medium;
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HDCA hdca = NULL;
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HICON hicoStuff = NULL;
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UNIQUESTUBINFO usi;
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ASSERT(IS_VALID_STRING_PTR(pszCaption, -1));
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ASSERT(NULL == pclsidDef || IS_VALID_READ_PTR(pclsidDef, CLSID));
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ASSERT(IS_VALID_CODE_PTR(pdtobj, DATAOBJECT));
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ASSERT(NULL == psb || IS_VALID_CODE_PTR(psb, IShellBrowser));
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ASSERT(NULL == pStartPage || IS_VALID_STRING_PTR(pStartPage, -1));
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// Create the stub window
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{
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POINT pt;
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POINT * ppt = NULL;
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LPITEMIDLIST pidl = NULL;
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if (SUCCEEDED(DataObj_GetOFFSETs(pdtobj, &pt)))
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ppt = &pt;
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if (DataObj_GetHIDA(pdtobj, &medium))
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{
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HIDA hida = medium.hGlobal;
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if (hida && (HIDA_GetCount(hida) == 1))
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{
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pidl = HIDA_ILClone(hida, 0);
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}
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HIDA_ReleaseStgMedium(NULL, &medium);
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}
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fUnique = EnsureUniqueStub(pidl, STUBCLASS_PROPSHEET, ppt, &usi);
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ILFree(pidl);
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}
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// If there's already a property sheet up for this guy, then our job is done
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if (!fUnique) {
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return TRUE;
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}
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psh.hwndParent = usi.hwndStub;
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psh.dwSize = sizeof(psh);
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psh.dwFlags = PSH_PROPTITLE;
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psh.hInstance = HINST_THISDLL;
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psh.pszCaption = pszCaption;
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psh.nPages = 0; // incremented in callback
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psh.nStartPage = 0; // set below if specified
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psh.phpage = ahpage;
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if (pStartPage)
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{
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psh.dwFlags |= PSH_USEPSTARTPAGE;
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psh.pStartPage = pStartPage;
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}
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hdca = DCA_Create();
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if (hdca)
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{
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UINT ikey;
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int nStartPage;
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//
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// Always add this default extention at the top, if any.
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//
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if (pclsidDef)
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{
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DCA_AddItem(hdca, pclsidDef);
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}
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for (ikey = 0; ikey < ckeys; ikey++)
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{
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if (ahkeys[ikey] && !_IsAnyDuplicatedKey(ahkeys, ikey, ahkeys[ikey]))
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{
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DCA_AddItemsFromKey(hdca, ahkeys[ikey], STRREG_SHEX_PROPSHEET);
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}
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}
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// Notes: ahkeys[ckeys-1] as hkeyProgID
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ASSERT(ckeys);
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nStartPage = DCA_AppendClassSheetInfo(hdca, ahkeys[ckeys-1], &psh, pdtobj);
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// If a shell extension requested to be the default and the caller didn't
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// specify a preferred initial page, then let the shell extension win.
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if (!pStartPage && nStartPage >= 0)
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psh.nStartPage = nStartPage;
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DCA_Destroy(hdca);
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}
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// Open the property sheet, only if we have some pages.
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if (psh.nPages > 0)
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{
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_try
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{
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if (PropertySheet(&psh) >= 0) // IDOK or IDCANCEL (< 0 is error)
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fSuccess = TRUE;
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}
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_except(UnhandledExceptionFilter(GetExceptionInformation()))
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{
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DebugMsg(DM_ERROR, TEXT("PRSHT: Fault in property sheet"));
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}
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}
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else
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{
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ShellMessageBox(HINST_THISDLL, NULL,
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MAKEINTRESOURCE(IDS_NOPAGE),
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MAKEINTRESOURCE(IDS_DESKTOP),
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MB_OK|MB_ICONHAND);
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}
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// clean up the stub window and data
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FreeUniqueStub(&usi);
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return fSuccess;
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}
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#ifdef UNICODE
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STDAPI_(BOOL) SHOpenPropSheetA(
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LPCSTR pszCaption,
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HKEY ahkeys[],
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UINT ckeys,
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const CLSID * pclsidDef,
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IDataObject *pdtobj,
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IShellBrowser * psb,
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LPCSTR pszStartPage) OPTIONAL
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{
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BOOL bRet = FALSE;
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if (IS_VALID_STRING_PTRA(pszCaption, MAX_PATH))
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{
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WCHAR wszCaption[MAX_PATH];
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WCHAR wszStartPage[MAX_PATH];
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SHAnsiToUnicode(pszCaption, wszCaption, SIZECHARS(wszCaption));
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if (pszStartPage)
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{
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ASSERT(IS_VALID_STRING_PTRA(pszStartPage, MAX_PATH));
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SHAnsiToUnicode(pszStartPage, wszStartPage, SIZECHARS(wszStartPage));
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pszStartPage = (LPCSTR)wszStartPage;
|
||
|
|
}
|
||
|
|
|
||
|
|
bRet = SHOpenPropSheet(wszCaption, ahkeys, ckeys, pclsidDef, pdtobj, psb, (LPCWSTR)pszStartPage);
|
||
|
|
}
|
||
|
|
|
||
|
|
return bRet;
|
||
|
|
}
|
||
|
|
|
||
|
|
#else
|
||
|
|
|
||
|
|
STDAPI_(BOOL) SHOpenPropSheetW(
|
||
|
|
LPCWSTR pszCaption,
|
||
|
|
HKEY ahkeys[],
|
||
|
|
UINT ckeys,
|
||
|
|
const CLSID * pclsidDef,
|
||
|
|
IDataObject *pdtobj,
|
||
|
|
IShellBrowser * psb,
|
||
|
|
LPCWSTR pszStartPage) OPTIONAL
|
||
|
|
{
|
||
|
|
BOOL bRet = FALSE;
|
||
|
|
|
||
|
|
if (IS_VALID_STRING_PTRW(pszCaption, MAX_PATH))
|
||
|
|
{
|
||
|
|
char szCaption[MAX_PATH];
|
||
|
|
char szStartPage[MAX_PATH];
|
||
|
|
|
||
|
|
SHUnicodeToAnsi(pszCaption, szCaption, SIZECHARS(szCaption));
|
||
|
|
|
||
|
|
if (pszStartPage)
|
||
|
|
{
|
||
|
|
ASSERT(IS_VALID_STRING_PTRW(pszStartPage, MAX_PATH));
|
||
|
|
|
||
|
|
SHUnicodeToAnsi(pszStartPage, szStartPage, SIZECHARS(szStartPage));
|
||
|
|
pszStartPage = (LPCWSTR)szStartPage;
|
||
|
|
}
|
||
|
|
|
||
|
|
bRet = SHOpenPropSheet(szCaption, ahkeys, ckeys, pclsidDef, pdtobj, psb, (LPCSTR)pszStartPage);
|
||
|
|
}
|
||
|
|
|
||
|
|
return bRet;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif // UNICODE
|
||
|
|
|
||
|
|
//
|
||
|
|
// Async version of SHFormatDrive - creates a separate thread to do the
|
||
|
|
// format and returns immediately.
|
||
|
|
//
|
||
|
|
|
||
|
|
typedef struct {
|
||
|
|
HWND hwnd;
|
||
|
|
UINT drive;
|
||
|
|
UINT fmtID;
|
||
|
|
UINT options;
|
||
|
|
} FORMATTHREADINFO;
|
||
|
|
|
||
|
|
STDAPI_(DWORD) _FormatThreadProc(LPVOID lpParam)
|
||
|
|
{
|
||
|
|
FORMATTHREADINFO* pfi = (FORMATTHREADINFO*)lpParam;
|
||
|
|
LPITEMIDLIST pidl;
|
||
|
|
TCHAR szDrive[4];
|
||
|
|
|
||
|
|
lstrcpy(szDrive, TEXT("A:\\"));
|
||
|
|
ASSERT(pfi->drive < 26);
|
||
|
|
szDrive[0] += (TCHAR)pfi->drive;
|
||
|
|
|
||
|
|
pidl = ILCreateFromPath(szDrive);
|
||
|
|
if (pidl)
|
||
|
|
{
|
||
|
|
UNIQUESTUBINFO usi;
|
||
|
|
LPPOINT ppt = NULL;
|
||
|
|
RECT rcWindow;
|
||
|
|
if (pfi->hwnd)
|
||
|
|
{
|
||
|
|
GetWindowRect(pfi->hwnd, &rcWindow);
|
||
|
|
ppt = (LPPOINT)&rcWindow;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (EnsureUniqueStub(pidl, STUBCLASS_FORMAT, ppt, &usi))
|
||
|
|
{
|
||
|
|
SHFormatDrive(usi.hwndStub, pfi->drive, pfi->fmtID, pfi->options);
|
||
|
|
FreeUniqueStub(&usi);
|
||
|
|
}
|
||
|
|
ILFree(pidl);
|
||
|
|
}
|
||
|
|
LocalFree(pfi);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDAPI_(void) SHFormatDriveAsync(
|
||
|
|
HWND hwnd,
|
||
|
|
UINT drive,
|
||
|
|
UINT fmtID,
|
||
|
|
UINT options
|
||
|
|
)
|
||
|
|
{
|
||
|
|
FORMATTHREADINFO* pfi = (FORMATTHREADINFO*)LocalAlloc(LPTR, sizeof(FORMATTHREADINFO));
|
||
|
|
if (pfi)
|
||
|
|
{
|
||
|
|
pfi->hwnd = hwnd;
|
||
|
|
pfi->drive = drive;
|
||
|
|
pfi->fmtID = fmtID;
|
||
|
|
pfi->options = options;
|
||
|
|
SHCreateThread(_FormatThreadProc, pfi, CTF_INSIST | CTF_PROCESS_REF, NULL);
|
||
|
|
}
|
||
|
|
}
|