482 lines
13 KiB
C
482 lines
13 KiB
C
/*
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* shell change notification
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*
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* Copyright 2000 Juergen Schmied
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include <string.h>
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#define NONAMELESSUNION
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#define NONAMELESSSTRUCT
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#include "windef.h"
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#include "winbase.h"
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#include "wine/debug.h"
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#include "shell32_main.h"
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WINE_DEFAULT_DEBUG_CHANNEL(shell);
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static CRITICAL_SECTION SHELL32_ChangenotifyCS;
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static CRITICAL_SECTION_DEBUG critsect_debug =
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{
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0, 0, &SHELL32_ChangenotifyCS,
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{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
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0, 0, { (DWORD_PTR)(__FILE__ ": SHELL32_ChangenotifyCS") }
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};
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static CRITICAL_SECTION SHELL32_ChangenotifyCS = { &critsect_debug, -1, 0, 0, 0, 0 };
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typedef SHChangeNotifyEntry *LPNOTIFYREGISTER;
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/* internal list of notification clients (internal) */
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typedef struct _NOTIFICATIONLIST
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{
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struct _NOTIFICATIONLIST *next;
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struct _NOTIFICATIONLIST *prev;
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HWND hwnd; /* window to notify */
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DWORD uMsg; /* message to send */
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LPNOTIFYREGISTER apidl; /* array of entries to watch*/
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UINT cidl; /* number of pidls in array */
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LONG wEventMask; /* subscribed events */
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LONG wSignalledEvent; /* event that occurred */
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DWORD dwFlags; /* client flags */
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LPCITEMIDLIST pidlSignaled; /*pidl of the path that caused the signal*/
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} NOTIFICATIONLIST, *LPNOTIFICATIONLIST;
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static NOTIFICATIONLIST *head, *tail;
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#define SHCNE_NOITEMEVENTS ( \
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SHCNE_ASSOCCHANGED )
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#define SHCNE_ONEITEMEVENTS ( \
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SHCNE_ATTRIBUTES | SHCNE_CREATE | SHCNE_DELETE | SHCNE_DRIVEADD | \
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SHCNE_DRIVEADDGUI | SHCNE_DRIVEREMOVED | SHCNE_FREESPACE | \
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SHCNE_MEDIAINSERTED | SHCNE_MEDIAREMOVED | SHCNE_MKDIR | \
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SHCNE_NETSHARE | SHCNE_NETUNSHARE | SHCNE_RMDIR | \
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SHCNE_SERVERDISCONNECT | SHCNE_UPDATEDIR | SHCNE_UPDATEIMAGE )
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#define SHCNE_TWOITEMEVENTS ( \
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SHCNE_RENAMEFOLDER | SHCNE_RENAMEITEM | SHCNE_UPDATEITEM )
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/* for dumping events */
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static const char * DumpEvent( LONG event )
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{
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if( event == SHCNE_ALLEVENTS )
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return "SHCNE_ALLEVENTS";
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#define DUMPEV(x) ,( event & SHCNE_##x )? #x " " : ""
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return wine_dbg_sprintf( "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s"
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DUMPEV(RENAMEITEM)
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DUMPEV(CREATE)
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DUMPEV(DELETE)
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DUMPEV(MKDIR)
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DUMPEV(RMDIR)
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DUMPEV(MEDIAINSERTED)
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DUMPEV(MEDIAREMOVED)
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DUMPEV(DRIVEREMOVED)
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DUMPEV(DRIVEADD)
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DUMPEV(NETSHARE)
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DUMPEV(NETUNSHARE)
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DUMPEV(ATTRIBUTES)
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DUMPEV(UPDATEDIR)
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DUMPEV(UPDATEITEM)
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DUMPEV(SERVERDISCONNECT)
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DUMPEV(UPDATEIMAGE)
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DUMPEV(DRIVEADDGUI)
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DUMPEV(RENAMEFOLDER)
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DUMPEV(FREESPACE)
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DUMPEV(EXTENDED_EVENT)
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DUMPEV(ASSOCCHANGED)
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DUMPEV(INTERRUPT)
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);
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#undef DUMPEV
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}
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static const char * NodeName(const NOTIFICATIONLIST *item)
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{
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const char *str;
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WCHAR path[MAX_PATH];
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if(SHGetPathFromIDListW(item->apidl[0].pidl, path ))
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str = wine_dbg_sprintf("%s", debugstr_w(path));
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else
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str = wine_dbg_sprintf("<not a disk file>" );
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return str;
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}
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static void AddNode(LPNOTIFICATIONLIST item)
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{
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TRACE("item %p\n", item );
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/* link items */
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item->prev = tail;
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item->next = NULL;
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if( tail )
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tail->next = item;
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else
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head = item;
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tail = item;
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}
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static LPNOTIFICATIONLIST FindNode( HANDLE hitem )
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{
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LPNOTIFICATIONLIST ptr;
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for( ptr = head; ptr; ptr = ptr->next )
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if( ptr == (LPNOTIFICATIONLIST) hitem )
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return ptr;
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return NULL;
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}
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static void DeleteNode(LPNOTIFICATIONLIST item)
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{
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UINT i;
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TRACE("item=%p prev=%p next=%p\n", item, item->prev, item->next);
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/* remove item from list */
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if( item->prev )
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item->prev->next = item->next;
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else
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head = item->next;
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if( item->next )
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item->next->prev = item->prev;
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else
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tail = item->prev;
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/* free the item */
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for (i=0; i<item->cidl; i++)
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SHFree((LPITEMIDLIST)item->apidl[i].pidl);
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SHFree(item->apidl);
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SHFree(item);
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}
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void InitChangeNotifications(void)
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{
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}
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void FreeChangeNotifications(void)
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{
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TRACE("\n");
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EnterCriticalSection(&SHELL32_ChangenotifyCS);
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while( head )
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DeleteNode( head );
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LeaveCriticalSection(&SHELL32_ChangenotifyCS);
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DeleteCriticalSection(&SHELL32_ChangenotifyCS);
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}
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/*************************************************************************
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* SHChangeNotifyRegister [SHELL32.2]
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*
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*/
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ULONG WINAPI
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SHChangeNotifyRegister(
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HWND hwnd,
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int fSources,
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LONG wEventMask,
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UINT uMsg,
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int cItems,
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SHChangeNotifyEntry *lpItems)
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{
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LPNOTIFICATIONLIST item;
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int i;
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item = SHAlloc(sizeof(NOTIFICATIONLIST));
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TRACE("(%p,0x%08x,0x%08x,0x%08x,%d,%p) item=%p\n",
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hwnd, fSources, wEventMask, uMsg, cItems, lpItems, item);
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item->next = NULL;
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item->prev = NULL;
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item->cidl = cItems;
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item->apidl = SHAlloc(sizeof(SHChangeNotifyEntry) * cItems);
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for(i=0;i<cItems;i++)
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{
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item->apidl[i].pidl = ILClone(lpItems[i].pidl);
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item->apidl[i].fRecursive = lpItems[i].fRecursive;
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}
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item->hwnd = hwnd;
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item->uMsg = uMsg;
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item->wEventMask = wEventMask;
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item->wSignalledEvent = 0;
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item->dwFlags = fSources;
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TRACE("new node: %s\n", NodeName( item ));
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EnterCriticalSection(&SHELL32_ChangenotifyCS);
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AddNode(item);
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LeaveCriticalSection(&SHELL32_ChangenotifyCS);
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return (ULONG)item;
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}
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/*************************************************************************
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* SHChangeNotifyDeregister [SHELL32.4]
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*/
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BOOL WINAPI SHChangeNotifyDeregister(ULONG hNotify)
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{
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LPNOTIFICATIONLIST node;
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TRACE("(0x%08x)\n", hNotify);
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EnterCriticalSection(&SHELL32_ChangenotifyCS);
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node = FindNode((HANDLE)hNotify);
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if( node )
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DeleteNode(node);
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LeaveCriticalSection(&SHELL32_ChangenotifyCS);
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return node?TRUE:FALSE;
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}
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/*************************************************************************
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* SHChangeNotifyUpdateEntryList [SHELL32.5]
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*/
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BOOL WINAPI SHChangeNotifyUpdateEntryList(DWORD unknown1, DWORD unknown2,
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DWORD unknown3, DWORD unknown4)
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{
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FIXME("(0x%08x, 0x%08x, 0x%08x, 0x%08x)\n",
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unknown1, unknown2, unknown3, unknown4);
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return -1;
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}
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static BOOL should_notify( LPCITEMIDLIST changed, LPCITEMIDLIST watched, BOOL sub )
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{
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TRACE("%p %p %d\n", changed, watched, sub );
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if ( !watched )
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return FALSE;
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if (ILIsEqual( watched, changed ) )
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return TRUE;
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if( sub && ILIsParent( watched, changed, TRUE ) )
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return TRUE;
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return FALSE;
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}
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/*************************************************************************
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* SHChangeNotify [SHELL32.@]
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*/
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void WINAPI SHChangeNotify(LONG wEventId, UINT uFlags, LPCVOID dwItem1, LPCVOID dwItem2)
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{
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LPCITEMIDLIST Pidls[2];
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LPNOTIFICATIONLIST ptr;
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UINT typeFlag = uFlags & SHCNF_TYPE;
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Pidls[0] = NULL;
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Pidls[1] = NULL;
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TRACE("(0x%08x,0x%08x,%p,%p):stub.\n", wEventId, uFlags, dwItem1, dwItem2);
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if( ( wEventId & SHCNE_NOITEMEVENTS ) && ( dwItem1 || dwItem2 ) )
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{
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TRACE("dwItem1 and dwItem2 are not zero, but should be\n");
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dwItem1 = 0;
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dwItem2 = 0;
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return;
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}
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else if( ( wEventId & SHCNE_ONEITEMEVENTS ) && dwItem2 )
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{
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TRACE("dwItem2 is not zero, but should be\n");
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dwItem2 = 0;
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return;
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}
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if( ( ( wEventId & SHCNE_NOITEMEVENTS ) &&
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( wEventId & ~SHCNE_NOITEMEVENTS ) ) ||
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( ( wEventId & SHCNE_ONEITEMEVENTS ) &&
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( wEventId & ~SHCNE_ONEITEMEVENTS ) ) ||
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( ( wEventId & SHCNE_TWOITEMEVENTS ) &&
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( wEventId & ~SHCNE_TWOITEMEVENTS ) ) )
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{
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WARN("mutually incompatible events listed\n");
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return;
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}
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/* convert paths in IDLists*/
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switch (typeFlag)
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{
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case SHCNF_PATHA:
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if (dwItem1) Pidls[0] = SHSimpleIDListFromPathA((LPCSTR)dwItem1);
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if (dwItem2) Pidls[1] = SHSimpleIDListFromPathA((LPCSTR)dwItem2);
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break;
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case SHCNF_PATHW:
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if (dwItem1) Pidls[0] = SHSimpleIDListFromPathW((LPCWSTR)dwItem1);
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if (dwItem2) Pidls[1] = SHSimpleIDListFromPathW((LPCWSTR)dwItem2);
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break;
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case SHCNF_IDLIST:
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Pidls[0] = (LPCITEMIDLIST)dwItem1;
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Pidls[1] = (LPCITEMIDLIST)dwItem2;
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break;
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case SHCNF_PRINTERA:
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case SHCNF_PRINTERW:
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FIXME("SHChangeNotify with (uFlags & SHCNF_PRINTER)\n");
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return;
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case SHCNF_DWORD:
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default:
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FIXME("unknown type %08x\n",typeFlag);
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return;
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}
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{
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WCHAR path[MAX_PATH];
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if( Pidls[0] && SHGetPathFromIDListW(Pidls[0], path ))
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TRACE("notify %08x on item1 = %s\n", wEventId, debugstr_w(path));
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if( Pidls[1] && SHGetPathFromIDListW(Pidls[1], path ))
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TRACE("notify %08x on item2 = %s\n", wEventId, debugstr_w(path));
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}
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EnterCriticalSection(&SHELL32_ChangenotifyCS);
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/* loop through the list */
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for( ptr = head; ptr; ptr = ptr->next )
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{
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BOOL notify;
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DWORD i;
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notify = FALSE;
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TRACE("trying %p\n", ptr);
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for( i=0; (i<ptr->cidl) && !notify ; i++ )
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{
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LPCITEMIDLIST pidl = ptr->apidl[i].pidl;
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BOOL subtree = ptr->apidl[i].fRecursive;
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if (wEventId & ptr->wEventMask)
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{
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if( !pidl ) /* all ? */
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notify = TRUE;
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else if( wEventId & SHCNE_NOITEMEVENTS )
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notify = TRUE;
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else if( wEventId & ( SHCNE_ONEITEMEVENTS | SHCNE_TWOITEMEVENTS ) )
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notify = should_notify( Pidls[0], pidl, subtree );
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else if( wEventId & SHCNE_TWOITEMEVENTS )
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notify = should_notify( Pidls[1], pidl, subtree );
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}
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}
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if( !notify )
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continue;
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ptr->pidlSignaled = ILClone(Pidls[0]);
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TRACE("notifying %s, event %s(%x) before\n", NodeName( ptr ), DumpEvent(
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wEventId ),wEventId );
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ptr->wSignalledEvent |= wEventId;
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if (ptr->dwFlags & SHCNRF_NewDelivery)
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SendMessageA(ptr->hwnd, ptr->uMsg, (WPARAM) ptr, (LPARAM) GetCurrentProcessId());
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else
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SendMessageA(ptr->hwnd, ptr->uMsg, (WPARAM)Pidls, wEventId);
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TRACE("notifying %s, event %s(%x) after\n", NodeName( ptr ), DumpEvent(
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wEventId ),wEventId );
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}
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TRACE("notify Done\n");
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LeaveCriticalSection(&SHELL32_ChangenotifyCS);
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/* if we allocated it, free it. The ANSI flag is also set in its Unicode sibling. */
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if ((typeFlag & SHCNF_PATHA) || (typeFlag & SHCNF_PRINTERA))
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{
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SHFree((LPITEMIDLIST)Pidls[0]);
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SHFree((LPITEMIDLIST)Pidls[1]);
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}
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}
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/*************************************************************************
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* NTSHChangeNotifyRegister [SHELL32.640]
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* NOTES
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* Idlist is an array of structures and Count specifies how many items in the array
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* (usually just one I think).
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*/
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DWORD WINAPI NTSHChangeNotifyRegister(
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HWND hwnd,
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LONG events1,
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LONG events2,
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DWORD msg,
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int count,
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SHChangeNotifyEntry *idlist)
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{
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FIXME("(%p,0x%08x,0x%08x,0x%08x,0x%08x,%p):semi stub.\n",
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hwnd,events1,events2,msg,count,idlist);
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return (DWORD) SHChangeNotifyRegister(hwnd, events1, events2, msg, count, idlist);
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}
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/*************************************************************************
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* SHChangeNotification_Lock [SHELL32.644]
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*/
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HANDLE WINAPI SHChangeNotification_Lock(
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HANDLE hChange,
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DWORD dwProcessId,
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LPITEMIDLIST **lppidls,
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LPLONG lpwEventId)
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{
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DWORD i;
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LPNOTIFICATIONLIST node;
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LPCITEMIDLIST *idlist;
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TRACE("%p %08x %p %p\n", hChange, dwProcessId, lppidls, lpwEventId);
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/* EnterCriticalSection(&SHELL32_ChangenotifyCS); */
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node = FindNode( hChange );
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if( node )
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{
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idlist = SHAlloc( sizeof(LPCITEMIDLIST *) * node->cidl );
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for(i=0; i<node->cidl; i++)
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idlist[i] = (LPCITEMIDLIST)node->pidlSignaled;
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*lpwEventId = node->wSignalledEvent;
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*lppidls = (LPITEMIDLIST*)idlist;
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node->wSignalledEvent = 0;
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}
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else
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ERR("Couldn't find %p\n", hChange );
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/* LeaveCriticalSection(&SHELL32_ChangenotifyCS); */
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return (HANDLE) node;
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}
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/*************************************************************************
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* SHChangeNotification_Unlock [SHELL32.645]
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*/
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BOOL WINAPI SHChangeNotification_Unlock ( HANDLE hLock)
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{
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TRACE("\n");
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return 1;
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}
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/*************************************************************************
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* NTSHChangeNotifyDeregister [SHELL32.641]
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*/
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DWORD WINAPI NTSHChangeNotifyDeregister(ULONG x1)
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{
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FIXME("(0x%08x):semi stub.\n",x1);
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return SHChangeNotifyDeregister( x1 );
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}
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