programs/explorer/explorer.c

   1 /*
   2  * explorer.exe
   3  *
   4  * Copyright 2004 CodeWeavers, Mike Hearn
   5  * Copyright 2005,2006 CodeWeavers, Aric Stewart
   6  * Copyright 2011 Jay Yang
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #define COBJMACROS
  24 #define NONAMELESSUNION
  25
  26 #include "wine/unicode.h"
  27 #include "wine/debug.h"
  28 #include "explorer_private.h"
  29 #include "resource.h"
  30
  31 #include <initguid.h>
  32 #include <windows.h>
  33 #include <shellapi.h>
  34 #include <shobjidl.h>
  35 #include <shlobj.h>
  36 #include <shlwapi.h>
  37 #include <commoncontrols.h>
  38 #include <commctrl.h>
  39
  40 WINE_DEFAULT_DEBUG_CHANNEL(explorer);
  41
  42 #define EXPLORER_INFO_INDEX 0
  43
  44 #define NAV_TOOLBAR_HEIGHT 30
  45 #define PATHBOX_HEIGHT 24
  46
  47 #define DEFAULT_WIDTH 640
  48 #define DEFAULT_HEIGHT 480
  49
  50
  51 static const WCHAR EXPLORER_CLASS[] = {'W','I','N','E','_','E','X','P','L','O','R','E','R','\0'};
  52 static const WCHAR PATH_BOX_NAME[] = {'\0'};
  53
  54 HINSTANCE explorer_hInstance;
  55
  56 typedef struct parametersTAG {
  57     BOOL    explorer_mode;
  58     WCHAR   root[MAX_PATH];
  59     WCHAR   selection[MAX_PATH];
  60 } parameters_struct;
  61
  62 typedef struct
  63 {
  64     IExplorerBrowser *browser;
  65     HWND main_window,path_box;
  66     INT rebar_height;
  67     LPITEMIDLIST pidl;
  68     IImageList *icon_list;
  69     DWORD advise_cookie;
  70 } explorer_info;
  71
  72 enum
  73 {
  74     BACK_BUTTON,FORWARD_BUTTON,UP_BUTTON
  75 };
  76
  77 typedef struct
  78 {
  79     IExplorerBrowserEvents IExplorerBrowserEvents_iface;
  80     explorer_info* info;
  81     LONG ref;
  82 } IExplorerBrowserEventsImpl;
  83
  84 static IExplorerBrowserEventsImpl *impl_from_IExplorerBrowserEvents(IExplorerBrowserEvents *iface)
  85 {
  86     return CONTAINING_RECORD(iface, IExplorerBrowserEventsImpl, IExplorerBrowserEvents_iface);
  87 }
  88
  89 static HRESULT WINAPI IExplorerBrowserEventsImpl_fnQueryInterface(IExplorerBrowserEvents *iface, REFIID riid, void **ppvObject)
  90 {
  91     return E_NOINTERFACE;
  92 }
  93
  94 static ULONG WINAPI IExplorerBrowserEventsImpl_fnAddRef(IExplorerBrowserEvents *iface)
  95 {
  96     IExplorerBrowserEventsImpl *This = impl_from_IExplorerBrowserEvents(iface);
  97     return InterlockedIncrement(&This->ref);
  98 }
  99
 100 static ULONG WINAPI IExplorerBrowserEventsImpl_fnRelease(IExplorerBrowserEvents *iface)
 101 {
 102     IExplorerBrowserEventsImpl *This = impl_from_IExplorerBrowserEvents(iface);
 103     ULONG ref = InterlockedDecrement(&This->ref);
 104     if(!ref)
 105         HeapFree(GetProcessHeap(),0,This);
 106     return ref;
 107 }
 108
 109 static BOOL create_combobox_item(IShellFolder *folder, LPCITEMIDLIST pidl, IImageList *icon_list, COMBOBOXEXITEMW *item)
 110 {
 111     STRRET strret;
 112     HRESULT hres;
 113     IExtractIconW *extract_icon;
 114     UINT reserved;
 115     WCHAR icon_file[MAX_PATH];
 116     INT icon_index;
 117     UINT icon_flags;
 118     HICON icon;
 119     strret.uType=STRRET_WSTR;
 120     hres = IShellFolder_GetDisplayNameOf(folder,pidl,SHGDN_FORADDRESSBAR,&strret);
 121     if(SUCCEEDED(hres))
 122         hres = StrRetToStrW(&strret, pidl, &item->pszText);
 123     if(FAILED(hres))
 124     {
 125         WINE_WARN("Could not get name for pidl\n");
 126         return FALSE;
 127     }
 128     hres = IShellFolder_GetUIObjectOf(folder,NULL,1,&pidl,&IID_IExtractIconW,
 129                                       &reserved,(void**)&extract_icon);
 130     if(SUCCEEDED(hres))
 131     {
 132         item->mask |= CBEIF_IMAGE;
 133         IExtractIconW_GetIconLocation(extract_icon,GIL_FORSHELL,icon_file,
 134                                       sizeof(icon_file)/sizeof(WCHAR),
 135                                       &icon_index,&icon_flags);
 136         IExtractIconW_Extract(extract_icon,icon_file,icon_index,NULL,&icon,20);
 137         item->iImage = ImageList_AddIcon((HIMAGELIST)icon_list,icon);
 138         IExtractIconW_Release(extract_icon);
 139     }
 140     else
 141     {
 142         item->mask &= ~CBEIF_IMAGE;
 143         WINE_WARN("Could not get an icon for %s\n",wine_dbgstr_w(item->pszText));
 144     }
 145     return TRUE;
 146 }
 147
 148 static void update_path_box(explorer_info *info)
 149 {
 150     COMBOBOXEXITEMW item;
 151     COMBOBOXEXITEMW main_item;
 152     IShellFolder *desktop;
 153     IPersistFolder2 *persist;
 154     LPITEMIDLIST desktop_pidl;
 155     IEnumIDList *ids;
 156
 157     ImageList_Remove((HIMAGELIST)info->icon_list,-1);
 158     SendMessageW(info->path_box,CB_RESETCONTENT,0,0);
 159     SHGetDesktopFolder(&desktop);
 160     IShellFolder_QueryInterface(desktop,&IID_IPersistFolder2,(void**)&persist);
 161     IPersistFolder2_GetCurFolder(persist,&desktop_pidl);
 162     IPersistFolder2_Release(persist);
 163     persist = NULL;
 164     /*Add Desktop*/
 165     item.iItem = -1;
 166     item.mask = CBEIF_TEXT | CBEIF_INDENT | CBEIF_LPARAM;
 167     item.iIndent = 0;
 168     create_combobox_item(desktop,desktop_pidl,info->icon_list,&item);
 169     item.lParam = (LPARAM)desktop_pidl;
 170     SendMessageW(info->path_box,CBEM_INSERTITEMW,0,(LPARAM)&item);
 171     if(ILIsEqual(info->pidl,desktop_pidl))
 172         main_item = item;
 173     else
 174         CoTaskMemFree(item.pszText);
 175     /*Add all direct subfolders of Desktop*/
 176     if(SUCCEEDED(IShellFolder_EnumObjects(desktop,NULL,SHCONTF_FOLDERS,&ids))
 177        && ids!=NULL)
 178     {
 179         LPITEMIDLIST curr_pidl=NULL;
 180         HRESULT hres;
 181
 182         item.iIndent = 1;
 183         while(1)
 184         {
 185             ILFree(curr_pidl);
 186             curr_pidl=NULL;
 187             hres = IEnumIDList_Next(ids,1,&curr_pidl,NULL);
 188             if(FAILED(hres) || hres == S_FALSE)
 189                 break;
 190             if(!create_combobox_item(desktop,curr_pidl,info->icon_list,&item))
 191                 WINE_WARN("Could not create a combobox item\n");
 192             else
 193             {
 194                 LPITEMIDLIST full_pidl = ILCombine(desktop_pidl,curr_pidl);
 195                 item.lParam = (LPARAM)full_pidl;
 196                 SendMessageW(info->path_box,CBEM_INSERTITEMW,0,(LPARAM)&item);
 197                 if(ILIsEqual(full_pidl,info->pidl))
 198                     main_item = item;
 199                 else if(ILIsParent(full_pidl,info->pidl,FALSE))
 200                 {
 201                     /*add all parents of the pidl passed in*/
 202                     LPITEMIDLIST next_pidl = ILFindChild(full_pidl,info->pidl);
 203                     IShellFolder *curr_folder = NULL, *temp;
 204                     hres = IShellFolder_BindToObject(desktop,curr_pidl,NULL,
 205                                                      &IID_IShellFolder,
 206                                                      (void**)&curr_folder);
 207                     if(FAILED(hres))
 208                         WINE_WARN("Could not get an IShellFolder\n");
 209                     while(!ILIsEmpty(next_pidl))
 210                     {
 211                         LPITEMIDLIST first = ILCloneFirst(next_pidl);
 212                         CoTaskMemFree(item.pszText);
 213                         if(!create_combobox_item(curr_folder,first,
 214                                                  info->icon_list,&item))
 215                         {
 216                             WINE_WARN("Could not create a combobox item\n");
 217                             break;
 218                         }
 219                         ++item.iIndent;
 220                         full_pidl = ILCombine(full_pidl,first);
 221                         item.lParam = (LPARAM)full_pidl;
 222                         SendMessageW(info->path_box,CBEM_INSERTITEMW,0,(LPARAM)&item);
 223                         temp=NULL;
 224                         hres = IShellFolder_BindToObject(curr_folder,first,NULL,
 225                                                          &IID_IShellFolder,
 226                                                          (void**)&temp);
 227                         if(FAILED(hres))
 228                         {
 229                             WINE_WARN("Could not get an IShellFolder\n");
 230                             break;
 231                         }
 232                         IShellFolder_Release(curr_folder);
 233                         curr_folder = temp;
 234
 235                         ILFree(first);
 236                         next_pidl = ILGetNext(next_pidl);
 237                     }
 238                     memcpy(&main_item,&item,sizeof(item));
 239                     if(curr_folder)
 240                         IShellFolder_Release(curr_folder);
 241                     item.iIndent = 1;
 242                 }
 243                 else
 244                     CoTaskMemFree(item.pszText);
 245             }
 246         }
 247         ILFree(curr_pidl);
 248         IEnumIDList_Release(ids);
 249     }
 250     else
 251         WINE_WARN("Could not enumerate the desktop\n");
 252     SendMessageW(info->path_box,CBEM_SETITEMW,0,(LPARAM)&main_item);
 253     CoTaskMemFree(main_item.pszText);
 254 }
 255
 256 static HRESULT WINAPI IExplorerBrowserEventsImpl_fnOnNavigationComplete(IExplorerBrowserEvents *iface, PCIDLIST_ABSOLUTE pidl)
 257 {
 258     IExplorerBrowserEventsImpl *This = impl_from_IExplorerBrowserEvents(iface);
 259     ILFree(This->info->pidl);
 260     This->info->pidl = ILClone(pidl);
 261     update_path_box(This->info);
 262     return S_OK;
 263 }
 264
 265 static HRESULT WINAPI IExplorerBrowserEventsImpl_fnOnNavigationFailed(IExplorerBrowserEvents *iface, PCIDLIST_ABSOLUTE pidl)
 266 {
 267     return S_OK;
 268 }
 269
 270 static HRESULT WINAPI IExplorerBrowserEventsImpl_fnOnNavigationPending(IExplorerBrowserEvents *iface, PCIDLIST_ABSOLUTE pidl)
 271 {
 272     return S_OK;
 273 }
 274
 275 static HRESULT WINAPI IExplorerBrowserEventsImpl_fnOnViewCreated(IExplorerBrowserEvents *iface, IShellView *psv)
 276 {
 277     return S_OK;
 278 }
 279
 280 static IExplorerBrowserEventsVtbl vt_IExplorerBrowserEvents =
 281 {
 282     IExplorerBrowserEventsImpl_fnQueryInterface,
 283     IExplorerBrowserEventsImpl_fnAddRef,
 284     IExplorerBrowserEventsImpl_fnRelease,
 285     IExplorerBrowserEventsImpl_fnOnNavigationPending,
 286     IExplorerBrowserEventsImpl_fnOnViewCreated,
 287     IExplorerBrowserEventsImpl_fnOnNavigationComplete,
 288     IExplorerBrowserEventsImpl_fnOnNavigationFailed
 289 };
 290
 291 static IExplorerBrowserEvents *make_explorer_events(explorer_info *info)
 292 {
 293     IExplorerBrowserEventsImpl *ret
 294         = HeapAlloc(GetProcessHeap(), 0, sizeof(IExplorerBrowserEventsImpl));
 295     ret->IExplorerBrowserEvents_iface.lpVtbl = &vt_IExplorerBrowserEvents;
 296     ret->info = info;
 297     ret->ref = 1;
 298     SHGetImageList(SHIL_SMALL,&IID_IImageList,(void**)&(ret->info->icon_list));
 299     SendMessageW(info->path_box,CBEM_SETIMAGELIST,0,(LPARAM)ret->info->icon_list);
 300     return &ret->IExplorerBrowserEvents_iface;
 301 }
 302
 303 static void make_explorer_window(IShellFolder* startFolder)
 304 {
 305     RECT explorerRect;
 306     HWND rebar,nav_toolbar;
 307     FOLDERSETTINGS fs;
 308     IExplorerBrowserEvents *events;
 309     explorer_info *info;
 310     HRESULT hres;
 311     WCHAR explorer_title[100];
 312     WCHAR pathbox_label[50];
 313     TBADDBITMAP bitmap_info;
 314     TBBUTTON nav_buttons[3];
 315     int hist_offset,view_offset;
 316     REBARBANDINFOW band_info;
 317     memset(nav_buttons,0,sizeof(nav_buttons));
 318     LoadStringW(explorer_hInstance,IDS_EXPLORER_TITLE,explorer_title,
 319                 sizeof(explorer_title)/sizeof(WCHAR));
 320     LoadStringW(explorer_hInstance,IDS_PATHBOX_LABEL,pathbox_label,
 321                 sizeof(pathbox_label)/sizeof(WCHAR));
 322     info = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(explorer_info));
 323     if(!info)
 324     {
 325         WINE_ERR("Could not allocate an explorer_info struct\n");
 326         return;
 327     }
 328     hres = CoCreateInstance(&CLSID_ExplorerBrowser,NULL,CLSCTX_INPROC_SERVER,
 329                             &IID_IExplorerBrowser,(LPVOID*)&info->browser);
 330     if(FAILED(hres))
 331     {
 332         WINE_ERR("Could not obtain an instance of IExplorerBrowser\n");
 333         HeapFree(GetProcessHeap(),0,info);
 334         return;
 335     }
 336     info->rebar_height=0;
 337     info->main_window
 338         = CreateWindowW(EXPLORER_CLASS,explorer_title,WS_OVERLAPPEDWINDOW,
 339                         CW_USEDEFAULT,CW_USEDEFAULT,DEFAULT_WIDTH,
 340                         DEFAULT_HEIGHT,NULL,NULL,explorer_hInstance,NULL);
 341
 342     fs.ViewMode = FVM_DETAILS;
 343     fs.fFlags = FWF_AUTOARRANGE;
 344     explorerRect.left = 0;
 345     explorerRect.top = 0;
 346     explorerRect.right = DEFAULT_WIDTH;
 347     explorerRect.bottom = DEFAULT_HEIGHT;
 348
 349     IExplorerBrowser_Initialize(info->browser,info->main_window,&explorerRect,&fs);
 350     IExplorerBrowser_SetOptions(info->browser,EBO_SHOWFRAMES);
 351     SetWindowLongPtrW(info->main_window,EXPLORER_INFO_INDEX,(LONG_PTR)info);
 352
 353     /*setup navbar*/
 354     rebar = CreateWindowExW(WS_EX_TOOLWINDOW,REBARCLASSNAMEW,NULL,
 355                             WS_CHILD|WS_VISIBLE|RBS_VARHEIGHT|CCS_TOP|CCS_NODIVIDER,
 356                             0,0,0,0,info->main_window,NULL,explorer_hInstance,NULL);
 357     nav_toolbar
 358         = CreateWindowExW(TBSTYLE_EX_MIXEDBUTTONS,TOOLBARCLASSNAMEW,NULL,
 359                           WS_CHILD|WS_VISIBLE|TBSTYLE_FLAT,0,0,0,0,rebar,NULL,
 360                           explorer_hInstance,NULL);
 361
 362     bitmap_info.hInst = HINST_COMMCTRL;
 363     bitmap_info.nID = IDB_HIST_LARGE_COLOR;
 364     hist_offset= SendMessageW(nav_toolbar,TB_ADDBITMAP,0,(LPARAM)&bitmap_info);
 365     bitmap_info.nID = IDB_VIEW_LARGE_COLOR;
 366     view_offset= SendMessageW(nav_toolbar,TB_ADDBITMAP,0,(LPARAM)&bitmap_info);
 367
 368     nav_buttons[0].iBitmap=hist_offset+HIST_BACK;
 369     nav_buttons[0].idCommand=BACK_BUTTON;
 370     nav_buttons[0].fsState=TBSTATE_ENABLED;
 371     nav_buttons[0].fsStyle=BTNS_BUTTON|BTNS_AUTOSIZE;
 372     nav_buttons[1].iBitmap=hist_offset+HIST_FORWARD;
 373     nav_buttons[1].idCommand=FORWARD_BUTTON;
 374     nav_buttons[1].fsState=TBSTATE_ENABLED;
 375     nav_buttons[1].fsStyle=BTNS_BUTTON|BTNS_AUTOSIZE;
 376     nav_buttons[2].iBitmap=view_offset+VIEW_PARENTFOLDER;
 377     nav_buttons[2].idCommand=UP_BUTTON;
 378     nav_buttons[2].fsState=TBSTATE_ENABLED;
 379     nav_buttons[2].fsStyle=BTNS_BUTTON|BTNS_AUTOSIZE;
 380     SendMessageW(nav_toolbar,TB_BUTTONSTRUCTSIZE,sizeof(TBBUTTON),0);
 381     SendMessageW(nav_toolbar,TB_ADDBUTTONSW,sizeof(nav_buttons)/sizeof(TBBUTTON),(LPARAM)nav_buttons);
 382
 383     band_info.cbSize = sizeof(band_info);
 384     band_info.fMask = RBBIM_STYLE|RBBIM_CHILD|RBBIM_CHILDSIZE|RBBIM_SIZE;
 385     band_info.hwndChild = nav_toolbar;
 386     band_info.fStyle=RBBS_GRIPPERALWAYS|RBBS_CHILDEDGE;
 387     band_info.cyChild=NAV_TOOLBAR_HEIGHT;
 388     band_info.cx=0;
 389     band_info.cyMinChild=NAV_TOOLBAR_HEIGHT;
 390     band_info.cxMinChild=0;
 391     SendMessageW(rebar,RB_INSERTBANDW,-1,(LPARAM)&band_info);
 392     info->path_box = CreateWindowW(WC_COMBOBOXEXW,PATH_BOX_NAME,
 393                                    WS_CHILD | WS_VISIBLE | CBS_DROPDOWN,
 394                                    0,0,DEFAULT_WIDTH,PATHBOX_HEIGHT,rebar,NULL,
 395                                    explorer_hInstance,NULL);
 396     band_info.cyChild=PATHBOX_HEIGHT;
 397     band_info.cx=0;
 398     band_info.cyMinChild=PATHBOX_HEIGHT;
 399     band_info.cxMinChild=0;
 400     band_info.fMask|=RBBIM_TEXT;
 401     band_info.lpText=pathbox_label;
 402     band_info.fStyle|=RBBS_BREAK;
 403     band_info.hwndChild=info->path_box;
 404     SendMessageW(rebar,RB_INSERTBANDW,-1,(LPARAM)&band_info);
 405     events = make_explorer_events(info);
 406     IExplorerBrowser_Advise(info->browser,events,&info->advise_cookie);
 407     IExplorerBrowser_BrowseToObject(info->browser,(IUnknown*)startFolder,
 408                                     SBSP_ABSOLUTE);
 409     ShowWindow(info->main_window,SW_SHOWDEFAULT);
 410     UpdateWindow(info->main_window);
 411     IExplorerBrowserEvents_Release(events);
 412 }
 413
 414 static void update_window_size(explorer_info *info, int height, int width)
 415 {
 416     RECT new_rect;
 417     new_rect.left = 0;
 418     new_rect.top = info->rebar_height;
 419     new_rect.right = width;
 420     new_rect.bottom = height;
 421     IExplorerBrowser_SetRect(info->browser,NULL,new_rect);
 422 }
 423
 424 static void do_exit(int code)
 425 {
 426     OleUninitialize();
 427     ExitProcess(code);
 428 }
 429
 430 static LRESULT explorer_on_end_edit(explorer_info *info,NMCBEENDEDITW *edit_info)
 431 {
 432     LPITEMIDLIST pidl = NULL;
 433
 434     WINE_TRACE("iWhy=%x\n",edit_info->iWhy);
 435     switch(edit_info->iWhy)
 436     {
 437     case CBENF_DROPDOWN:
 438         if(edit_info->iNewSelection!=CB_ERR)
 439             pidl = (LPITEMIDLIST)SendMessageW(edit_info->hdr.hwndFrom,
 440                                               CB_GETITEMDATA,
 441                                               edit_info->iNewSelection,0);
 442         break;
 443     case CBENF_RETURN:
 444         {
 445             WCHAR path[MAX_PATH];
 446             HWND edit_ctrl = (HWND)SendMessageW(edit_info->hdr.hwndFrom,
 447                                                 CBEM_GETEDITCONTROL,0,0);
 448             *((WORD*)path)=MAX_PATH;
 449             SendMessageW(edit_ctrl,EM_GETLINE,0,(LPARAM)path);
 450             pidl = ILCreateFromPathW(path);
 451             break;
 452         }
 453     case CBENF_ESCAPE:
 454         /*make sure the that the path box resets*/
 455         update_path_box(info);
 456         return 0;
 457     default:
 458         return 0;
 459     }
 460     if(pidl)
 461         IExplorerBrowser_BrowseToIDList(info->browser,pidl,SBSP_ABSOLUTE);
 462     if(edit_info->iWhy==CBENF_RETURN)
 463         ILFree(pidl);
 464     return 0;
 465 }
 466
 467 static LRESULT update_rebar_size(explorer_info* info,NMRBAUTOSIZE *size_info)
 468 {
 469     RECT new_rect;
 470     RECT window_rect;
 471     info->rebar_height = size_info->rcTarget.bottom-size_info->rcTarget.top;
 472     GetWindowRect(info->main_window,&window_rect);
 473     new_rect.left = 0;
 474     new_rect.top = info->rebar_height;
 475     new_rect.right = window_rect.right-window_rect.left;
 476     new_rect.bottom = window_rect.bottom-window_rect.top;
 477     IExplorerBrowser_SetRect(info->browser,NULL,new_rect);
 478     return 0;
 479 }
 480
 481 static LRESULT explorer_on_notify(explorer_info* info,NMHDR* notification)
 482 {
 483     WINE_TRACE("code=%i\n",notification->code);
 484     switch(notification->code)
 485     {
 486     case CBEN_BEGINEDIT:
 487         {
 488             WCHAR path[MAX_PATH];
 489             HWND edit_ctrl = (HWND)SendMessageW(notification->hwndFrom,
 490                                                 CBEM_GETEDITCONTROL,0,0);
 491             SHGetPathFromIDListW(info->pidl,path);
 492             SetWindowTextW(edit_ctrl,path);
 493             break;
 494         }
 495     case CBEN_ENDEDITA:
 496         {
 497             NMCBEENDEDITA *edit_info_a = (NMCBEENDEDITA*)notification;
 498             NMCBEENDEDITW edit_info_w;
 499             edit_info_w.hdr = edit_info_a->hdr;
 500             edit_info_w.fChanged = edit_info_a->fChanged;
 501             edit_info_w.iNewSelection = edit_info_a->iNewSelection;
 502             MultiByteToWideChar(CP_ACP,0,edit_info_a->szText,-1,
 503                                 edit_info_w.szText,CBEMAXSTRLEN);
 504             edit_info_w.iWhy = edit_info_a->iWhy;
 505             return explorer_on_end_edit(info,&edit_info_w);
 506         }
 507     case CBEN_ENDEDITW:
 508         return explorer_on_end_edit(info,(NMCBEENDEDITW*)notification);
 509     case CBEN_DELETEITEM:
 510         {
 511             NMCOMBOBOXEXW *entry = (NMCOMBOBOXEXW*)notification;
 512             if(entry->ceItem.lParam)
 513                 ILFree((LPITEMIDLIST)entry->ceItem.lParam);
 514             break;
 515         }
 516     case RBN_AUTOSIZE:
 517         return update_rebar_size(info,(NMRBAUTOSIZE*)notification);
 518     default:
 519         break;
 520     }
 521     return 0;
 522 }
 523
 524 static LRESULT CALLBACK explorer_wnd_proc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 525 {
 526     explorer_info *info
 527         = (explorer_info*)GetWindowLongPtrW(hwnd,EXPLORER_INFO_INDEX);
 528     IExplorerBrowser *browser = NULL;
 529
 530     WINE_TRACE("(hwnd=%p,uMsg=%u,wParam=%lx,lParam=%lx)\n",hwnd,uMsg,wParam,lParam);
 531     if(info)
 532         browser = info->browser;
 533     switch(uMsg)
 534     {
 535     case WM_DESTROY:
 536         IExplorerBrowser_Unadvise(browser,info->advise_cookie);
 537         IExplorerBrowser_Destroy(browser);
 538         IExplorerBrowser_Release(browser);
 539         ILFree(info->pidl);
 540         IImageList_Release(info->icon_list);
 541         HeapFree(GetProcessHeap(),0,info);
 542         SetWindowLongPtrW(hwnd,EXPLORER_INFO_INDEX,0);
 543         PostQuitMessage(0);
 544         break;
 545     case WM_QUIT:
 546         do_exit(wParam);
 547     case WM_NOTIFY:
 548         return explorer_on_notify(info,(NMHDR*)lParam);
 549     case WM_COMMAND:
 550         if(HIWORD(wParam)==BN_CLICKED)
 551         {
 552             switch(LOWORD(wParam))
 553             {
 554             case BACK_BUTTON:
 555                 IExplorerBrowser_BrowseToObject(browser,NULL,SBSP_NAVIGATEBACK);
 556                 break;
 557             case FORWARD_BUTTON:
 558                 IExplorerBrowser_BrowseToObject(browser,NULL,SBSP_NAVIGATEFORWARD);
 559                 break;
 560             case UP_BUTTON:
 561                 IExplorerBrowser_BrowseToObject(browser,NULL,SBSP_PARENT);
 562                 break;
 563             }
 564         }
 565         break;
 566     case WM_SIZE:
 567         update_window_size(info,HIWORD(lParam),LOWORD(lParam));
 568         break;
 569     default:
 570         return DefWindowProcW(hwnd,uMsg,wParam,lParam);
 571     }
 572     return 0;
 573 }
 574
 575 static void register_explorer_window_class(void)
 576 {
 577     WNDCLASSEXW window_class;
 578     window_class.cbSize = sizeof(WNDCLASSEXW);
 579     window_class.style = 0;
 580     window_class.cbClsExtra = 0;
 581     window_class.cbWndExtra = sizeof(LONG_PTR);
 582     window_class.lpfnWndProc = explorer_wnd_proc;
 583     window_class.hInstance = explorer_hInstance;
 584     window_class.hIcon = NULL;
 585     window_class.hCursor = NULL;
 586     window_class.hbrBackground = (HBRUSH)COLOR_BACKGROUND;
 587     window_class.lpszMenuName = NULL;
 588     window_class.lpszClassName = EXPLORER_CLASS;
 589     window_class.hIconSm = NULL;
 590     RegisterClassExW(&window_class);
 591 }
 592
 593 static IShellFolder* get_starting_shell_folder(parameters_struct* params)
 594 {
 595     IShellFolder* desktop,*folder;
 596     LPITEMIDLIST root_pidl;
 597     HRESULT hres;
 598
 599     SHGetDesktopFolder(&desktop);
 600     if (!params->root[0])
 601     {
 602         return desktop;
 603     }
 604     hres = IShellFolder_ParseDisplayName(desktop,NULL,NULL,
 605                                          params->root,NULL,
 606                                          &root_pidl,NULL);
 607
 608     if(FAILED(hres))
 609     {
 610         return desktop;
 611     }
 612     hres = IShellFolder_BindToObject(desktop,root_pidl,NULL,
 613                                      &IID_IShellFolder,
 614                                      (void**)&folder);
 615     if(FAILED(hres))
 616     {
 617         return desktop;
 618     }
 619     IShellFolder_Release(desktop);
 620     return folder;
 621 }
 622
 623 static int copy_path_string(LPWSTR target, LPWSTR source)
 624 {
 625     INT i = 0;
 626
 627     while (isspaceW(*source)) source++;
 628
 629     if (*source == '\"')
 630     {
 631         source ++;
 632         while (*source != '\"') target[i++] = *source++;
 633         target[i] = 0;
 634         source ++;
 635         i+=2;
 636     }
 637     else
 638     {
 639         while (*source && *source != ',') target[i++] = *source++;
 640         target[i] = 0;
 641     }
 642     PathRemoveBackslashW(target);
 643     return i;
 644 }
 645
 646
 647 static void copy_path_root(LPWSTR root, LPWSTR path)
 648 {
 649     LPWSTR p,p2;
 650     INT i = 0;
 651
 652     p = path;
 653     while (*p!=0)
 654         p++;
 655
 656     while (*p!='\\' && p > path)
 657         p--;
 658
 659     if (p == path)
 660         return;
 661
 662     p2 = path;
 663     while (p2 != p)
 664     {
 665         root[i] = *p2;
 666         i++;
 667         p2++;
 668     }
 669     root[i] = 0;
 670 }
 671
 672 /*
 673  * Command Line parameters are:
 674  * [/n]  Opens in single-paned view for each selected items. This is default
 675  * [/e,] Uses Windows Explorer View
 676  * [/root,object] Specifies the root level of the view
 677  * [/select,object] parent folder is opened and specified object is selected
 678  */
 679 static void parse_command_line(LPWSTR commandline,parameters_struct *parameters)
 680 {
 681     static const WCHAR arg_n[] = {'/','n'};
 682     static const WCHAR arg_e[] = {'/','e',','};
 683     static const WCHAR arg_root[] = {'/','r','o','o','t',','};
 684     static const WCHAR arg_select[] = {'/','s','e','l','e','c','t',','};
 685     static const WCHAR arg_desktop[] = {'/','d','e','s','k','t','o','p'};
 686
 687     LPWSTR p, p2;
 688
 689     p2 = commandline;
 690     p = strchrW(commandline,'/');
 691     while(p)
 692     {
 693         if (strncmpW(p, arg_n, sizeof(arg_n)/sizeof(WCHAR))==0)
 694         {
 695             parameters->explorer_mode = FALSE;
 696             p += sizeof(arg_n)/sizeof(WCHAR);
 697         }
 698         else if (strncmpW(p, arg_e, sizeof(arg_e)/sizeof(WCHAR))==0)
 699         {
 700             parameters->explorer_mode = TRUE;
 701             p += sizeof(arg_e)/sizeof(WCHAR);
 702         }
 703         else if (strncmpW(p, arg_root, sizeof(arg_root)/sizeof(WCHAR))==0)
 704         {
 705             p += sizeof(arg_root)/sizeof(WCHAR);
 706             p+=copy_path_string(parameters->root,p);
 707         }
 708         else if (strncmpW(p, arg_select, sizeof(arg_select)/sizeof(WCHAR))==0)
 709         {
 710             p += sizeof(arg_select)/sizeof(WCHAR);
 711             p+=copy_path_string(parameters->selection,p);
 712             if (!parameters->root[0])
 713                 copy_path_root(parameters->root,
 714                                parameters->selection);
 715         }
 716         else if (strncmpW(p, arg_desktop, sizeof(arg_desktop)/sizeof(WCHAR))==0)
 717         {
 718             p += sizeof(arg_desktop)/sizeof(WCHAR);
 719             manage_desktop( p );  /* the rest of the command line is handled by desktop mode */
 720         }
 721         else p++;
 722
 723         p2 = p;
 724         p = strchrW(p,'/');
 725     }
 726     if (p2 && *p2)
 727     {
 728         /* left over command line is generally the path to be opened */
 729         copy_path_string(parameters->root,p2);
 730     }
 731 }
 732
 733 int WINAPI wWinMain(HINSTANCE hinstance,
 734                     HINSTANCE previnstance,
 735                     LPWSTR cmdline,
 736                     int cmdshow)
 737 {
 738
 739     parameters_struct   parameters;
 740     HRESULT hres;
 741     MSG msg;
 742     IShellFolder *folder;
 743     INITCOMMONCONTROLSEX init_info;
 744
 745     memset(&parameters,0,sizeof(parameters));
 746     explorer_hInstance = hinstance;
 747     parse_command_line(cmdline,&parameters);
 748     hres = OleInitialize(NULL);
 749     if(FAILED(hres))
 750     {
 751         WINE_ERR("Could not initialize COM\n");
 752         ExitProcess(EXIT_FAILURE);
 753     }
 754     if(parameters.root[0] && !PathIsDirectoryW(parameters.root))
 755         if(ShellExecuteW(NULL,NULL,parameters.root,NULL,NULL,SW_SHOWDEFAULT) > (HINSTANCE)32)
 756             ExitProcess(EXIT_SUCCESS);
 757     init_info.dwSize = sizeof(INITCOMMONCONTROLSEX);
 758     init_info.dwICC = ICC_USEREX_CLASSES | ICC_BAR_CLASSES | ICC_COOL_CLASSES;
 759     if(!InitCommonControlsEx(&init_info))
 760     {
 761         WINE_ERR("Could not initialize Comctl\n");
 762         ExitProcess(EXIT_FAILURE);
 763     }
 764     register_explorer_window_class();
 765     folder = get_starting_shell_folder(&parameters);
 766     make_explorer_window(folder);
 767     IShellFolder_Release(folder);
 768     while(GetMessageW( &msg, NULL, 0, 0 ) != 0)
 769     {
 770             TranslateMessage(&msg);
 771             DispatchMessageW(&msg);
 772     }
 773     return 0;
 774 }