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495 lines
14 KiB
C
495 lines
14 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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#include "windef.h"
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#include "winbase.h"
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#include "wine/list.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 list entry;
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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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DWORD dwFlags; /* client flags */
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ULONG id;
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} NOTIFICATIONLIST, *LPNOTIFICATIONLIST;
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static struct list notifications = LIST_INIT( notifications );
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static LONG next_id;
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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 DeleteNode(LPNOTIFICATIONLIST item)
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{
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UINT i;
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TRACE("item=%p\n", item);
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/* remove item from list */
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list_remove( &item->entry );
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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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LPNOTIFICATIONLIST ptr, next;
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TRACE("\n");
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EnterCriticalSection(&SHELL32_ChangenotifyCS);
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LIST_FOR_EACH_ENTRY_SAFE( ptr, next, ¬ifications, NOTIFICATIONLIST, entry )
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DeleteNode( ptr );
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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->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->dwFlags = fSources;
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item->id = InterlockedIncrement( &next_id );
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TRACE("new node: %s\n", NodeName( item ));
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EnterCriticalSection(&SHELL32_ChangenotifyCS);
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list_add_tail( ¬ifications, &item->entry );
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LeaveCriticalSection(&SHELL32_ChangenotifyCS);
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return item->id;
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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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LIST_FOR_EACH_ENTRY( node, ¬ifications, NOTIFICATIONLIST, entry )
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{
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if (node->id == hNotify)
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{
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DeleteNode( node );
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LeaveCriticalSection(&SHELL32_ChangenotifyCS);
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return TRUE;
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}
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}
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LeaveCriticalSection(&SHELL32_ChangenotifyCS);
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return 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 TRUE;
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}
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struct new_delivery_notification
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{
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LONG event;
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DWORD pidl1_size;
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DWORD pidl2_size;
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LPITEMIDLIST pidls[2];
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BYTE data[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, FALSE ) )
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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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struct notification_recipients {
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struct list entry;
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HWND hwnd;
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DWORD msg;
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DWORD flags;
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} *cur, *next;
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HANDLE shared_data = NULL;
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LPITEMIDLIST Pidls[2];
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LPNOTIFICATIONLIST ptr;
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struct list recipients;
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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)\n", wEventId, uFlags, dwItem1, dwItem2);
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if(uFlags & ~(SHCNF_TYPE|SHCNF_FLUSH))
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FIXME("ignoring unsupported flags: %x\n", uFlags);
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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 (uFlags & SHCNF_TYPE)
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{
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case SHCNF_PATHA:
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if (dwItem1) Pidls[0] = SHSimpleIDListFromPathA(dwItem1);
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if (dwItem2) Pidls[1] = SHSimpleIDListFromPathA(dwItem2);
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break;
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case SHCNF_PATHW:
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if (dwItem1) Pidls[0] = SHSimpleIDListFromPathW(dwItem1);
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if (dwItem2) Pidls[1] = SHSimpleIDListFromPathW(dwItem2);
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break;
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case SHCNF_IDLIST:
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Pidls[0] = ILClone(dwItem1);
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Pidls[1] = ILClone(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", uFlags & SHCNF_TYPE);
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return;
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}
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list_init(&recipients);
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EnterCriticalSection(&SHELL32_ChangenotifyCS);
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LIST_FOR_EACH_ENTRY( ptr, ¬ifications, NOTIFICATIONLIST, entry )
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{
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struct notification_recipients *item;
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BOOL notify = FALSE;
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DWORD i;
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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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item = SHAlloc(sizeof(struct notification_recipients));
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if(!item) {
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ERR("out of memory\n");
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continue;
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}
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item->hwnd = ptr->hwnd;
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item->msg = ptr->uMsg;
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item->flags = ptr->dwFlags;
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list_add_tail(&recipients, &item->entry);
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}
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LeaveCriticalSection(&SHELL32_ChangenotifyCS);
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LIST_FOR_EACH_ENTRY_SAFE(cur, next, &recipients, struct notification_recipients, entry)
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{
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TRACE("notifying %p, event %s(%x)\n", cur->hwnd, DumpEvent(wEventId), wEventId);
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if (cur->flags & SHCNRF_NewDelivery) {
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if(!shared_data) {
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struct new_delivery_notification *notification;
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UINT size1 = ILGetSize(Pidls[0]), size2 = ILGetSize(Pidls[1]);
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UINT offset = (size1+sizeof(int)-1)/sizeof(int)*sizeof(int);
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notification = SHAlloc(sizeof(struct new_delivery_notification)+offset+size2);
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if(!notification) {
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ERR("out of memory\n");
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} else {
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notification->event = wEventId;
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notification->pidl1_size = size1;
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notification->pidl2_size = size2;
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if(size1)
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memcpy(notification->data, Pidls[0], size1);
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if(size2)
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memcpy(notification->data+offset, Pidls[1], size2);
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shared_data = SHAllocShared(notification,
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sizeof(struct new_delivery_notification)+size1+size2,
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GetCurrentProcessId());
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SHFree(notification);
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}
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}
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if(shared_data)
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SendMessageA(cur->hwnd, cur->msg, (WPARAM)shared_data, GetCurrentProcessId());
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else
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ERR("out of memory\n");
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} else {
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SendMessageA(cur->hwnd, cur->msg, (WPARAM)Pidls, wEventId);
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}
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list_remove(&cur->entry);
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SHFree(cur);
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}
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SHFreeShared(shared_data, GetCurrentProcessId());
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SHFree(Pidls[0]);
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SHFree(Pidls[1]);
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if (wEventId & SHCNE_ASSOCCHANGED)
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{
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static const WCHAR args[] = {' ','-','a',0 };
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TRACE("refreshing file type associations\n");
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run_winemenubuilder( args );
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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 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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struct new_delivery_notification *ndn;
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UINT offset;
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TRACE("%p %08x %p %p\n", hChange, dwProcessId, lppidls, lpwEventId);
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ndn = SHLockShared(hChange, dwProcessId);
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if(!ndn) {
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WARN("SHLockShared failed\n");
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return NULL;
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}
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if(lppidls) {
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offset = (ndn->pidl1_size+sizeof(int)-1)/sizeof(int)*sizeof(int);
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ndn->pidls[0] = ndn->pidl1_size ? (LPITEMIDLIST)ndn->data : NULL;
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ndn->pidls[1] = ndn->pidl2_size ? (LPITEMIDLIST)(ndn->data+offset) : NULL;
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*lppidls = ndn->pidls;
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}
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if(lpwEventId)
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*lpwEventId = ndn->event;
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return ndn;
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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("%p\n", hLock);
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return SHUnlockShared(hLock);
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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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