Sweden-Number/programs/explorer/desktop.c

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/*
* Explorer desktop support
*
* Copyright 2006 Alexandre Julliard
* Copyright 2013 Hans Leidekker for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdio.h>
#define COBJMACROS
#define OEMRESOURCE
#include <windows.h>
#include <rpc.h>
#include <shlobj.h>
#include <shellapi.h>
#include "wine/gdi_driver.h"
#include "wine/unicode.h"
#include "wine/debug.h"
#include "explorer_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(explorer);
#define DESKTOP_CLASS_ATOM ((LPCWSTR)MAKEINTATOM(32769))
#define DESKTOP_ALL_ACCESS 0x01ff
static BOOL using_root;
struct launcher
{
WCHAR *path;
HICON icon;
WCHAR *title;
};
static WCHAR *desktop_folder;
static WCHAR *desktop_folder_public;
static int icon_cx, icon_cy, icon_offset_cx, icon_offset_cy;
static int title_cx, title_cy, title_offset_cx, title_offset_cy;
static int desktop_width, launcher_size, launchers_per_row;
static struct launcher **launchers;
static unsigned int nb_launchers, nb_allocated;
static RECT get_icon_rect( unsigned int index )
{
RECT rect;
unsigned int row = index / launchers_per_row;
unsigned int col = index % launchers_per_row;
rect.left = col * launcher_size + icon_offset_cx;
rect.right = rect.left + icon_cx;
rect.top = row * launcher_size + icon_offset_cy;
rect.bottom = rect.top + icon_cy;
return rect;
}
static RECT get_title_rect( unsigned int index )
{
RECT rect;
unsigned int row = index / launchers_per_row;
unsigned int col = index % launchers_per_row;
rect.left = col * launcher_size + title_offset_cx;
rect.right = rect.left + title_cx;
rect.top = row * launcher_size + title_offset_cy;
rect.bottom = rect.top + title_cy;
return rect;
}
static const struct launcher *launcher_from_point( int x, int y )
{
RECT icon, title;
unsigned int index;
if (!nb_launchers) return NULL;
index = x / launcher_size + (y / launcher_size) * launchers_per_row;
if (index >= nb_launchers) return NULL;
icon = get_icon_rect( index );
title = get_title_rect( index );
if ((x < icon.left || x > icon.right || y < icon.top || y > icon.bottom) &&
(x < title.left || x > title.right || y < title.top || y > title.bottom)) return NULL;
return launchers[index];
}
static void draw_launchers( HDC hdc, RECT update_rect )
{
COLORREF color = SetTextColor( hdc, RGB(255,255,255) ); /* FIXME: depends on background color */
int mode = SetBkMode( hdc, TRANSPARENT );
unsigned int i;
LOGFONTW lf;
HFONT font;
SystemParametersInfoW( SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0 );
font = SelectObject( hdc, CreateFontIndirectW( &lf ) );
for (i = 0; i < nb_launchers; i++)
{
RECT dummy, icon = get_icon_rect( i ), title = get_title_rect( i );
if (IntersectRect( &dummy, &icon, &update_rect ))
DrawIconEx( hdc, icon.left, icon.top, launchers[i]->icon, icon_cx, icon_cy,
0, 0, DI_DEFAULTSIZE|DI_NORMAL );
if (IntersectRect( &dummy, &title, &update_rect ))
DrawTextW( hdc, launchers[i]->title, -1, &title,
DT_CENTER|DT_WORDBREAK|DT_EDITCONTROL|DT_END_ELLIPSIS );
}
SelectObject( hdc, font );
SetTextColor( hdc, color );
SetBkMode( hdc, mode );
}
static void do_launch( const struct launcher *launcher )
{
static const WCHAR openW[] = {'o','p','e','n',0};
ShellExecuteW( NULL, openW, launcher->path, NULL, NULL, 0 );
}
static WCHAR *append_path( const WCHAR *path, const WCHAR *filename, int len_filename )
{
int len_path = strlenW( path );
WCHAR *ret;
if (len_filename == -1) len_filename = strlenW( filename );
if (!(ret = HeapAlloc( GetProcessHeap(), 0, (len_path + len_filename + 2) * sizeof(WCHAR) )))
return NULL;
memcpy( ret, path, len_path * sizeof(WCHAR) );
ret[len_path] = '\\';
memcpy( ret + len_path + 1, filename, len_filename * sizeof(WCHAR) );
ret[len_path + 1 + len_filename] = 0;
return ret;
}
static IShellLinkW *load_shelllink( const WCHAR *path )
{
HRESULT hr;
IShellLinkW *link;
IPersistFile *file;
hr = CoCreateInstance( &CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, &IID_IShellLinkW,
(void **)&link );
if (FAILED( hr )) return NULL;
hr = IShellLinkW_QueryInterface( link, &IID_IPersistFile, (void **)&file );
if (FAILED( hr ))
{
IShellLinkW_Release( link );
return NULL;
}
hr = IPersistFile_Load( file, path, 0 );
IPersistFile_Release( file );
if (FAILED( hr ))
{
IShellLinkW_Release( link );
return NULL;
}
return link;
}
static HICON extract_icon( IShellLinkW *link )
{
WCHAR tmp_path[MAX_PATH], icon_path[MAX_PATH], target_path[MAX_PATH];
HICON icon = NULL;
int index;
tmp_path[0] = 0;
IShellLinkW_GetIconLocation( link, tmp_path, MAX_PATH, &index );
ExpandEnvironmentStringsW( tmp_path, icon_path, MAX_PATH );
if (icon_path[0]) ExtractIconExW( icon_path, index, &icon, NULL, 1 );
if (!icon)
{
tmp_path[0] = 0;
IShellLinkW_GetPath( link, tmp_path, MAX_PATH, NULL, SLGP_RAWPATH );
ExpandEnvironmentStringsW( tmp_path, target_path, MAX_PATH );
ExtractIconExW( target_path, index, &icon, NULL, 1 );
}
return icon;
}
static WCHAR *build_title( const WCHAR *filename, int len )
{
const WCHAR *p;
WCHAR *ret;
if (len == -1) len = strlenW( filename );
for (p = filename + len - 1; p >= filename; p--)
{
if (*p == '.')
{
len = p - filename;
break;
}
}
if (!(ret = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) ))) return NULL;
memcpy( ret, filename, len * sizeof(WCHAR) );
ret[len] = 0;
return ret;
}
static BOOL add_launcher( const WCHAR *folder, const WCHAR *filename, int len_filename )
{
struct launcher *launcher;
IShellLinkW *link;
if (nb_launchers == nb_allocated)
{
unsigned int count = nb_allocated * 2;
struct launcher **tmp = HeapReAlloc( GetProcessHeap(), 0, launchers, count * sizeof(*tmp) );
if (!tmp) return FALSE;
launchers = tmp;
nb_allocated = count;
}
if (!(launcher = HeapAlloc( GetProcessHeap(), 0, sizeof(*launcher) ))) return FALSE;
if (!(launcher->path = append_path( folder, filename, len_filename ))) goto error;
if (!(link = load_shelllink( launcher->path ))) goto error;
launcher->icon = extract_icon( link );
launcher->title = build_title( filename, len_filename );
IShellLinkW_Release( link );
if (launcher->icon && launcher->title)
{
launchers[nb_launchers++] = launcher;
return TRUE;
}
HeapFree( GetProcessHeap(), 0, launcher->title );
DestroyIcon( launcher->icon );
error:
HeapFree( GetProcessHeap(), 0, launcher->path );
HeapFree( GetProcessHeap(), 0, launcher );
return FALSE;
}
static void free_launcher( struct launcher *launcher )
{
DestroyIcon( launcher->icon );
HeapFree( GetProcessHeap(), 0, launcher->path );
HeapFree( GetProcessHeap(), 0, launcher->title );
HeapFree( GetProcessHeap(), 0, launcher );
}
static BOOL remove_launcher( const WCHAR *folder, const WCHAR *filename, int len_filename )
{
UINT i;
WCHAR *path;
BOOL ret = FALSE;
if (!(path = append_path( folder, filename, len_filename ))) return FALSE;
for (i = 0; i < nb_launchers; i++)
{
if (!strcmpiW( launchers[i]->path, path ))
{
free_launcher( launchers[i] );
if (--nb_launchers)
memmove( &launchers[i], &launchers[i + 1], sizeof(launchers[i]) * (nb_launchers - i) );
ret = TRUE;
break;
}
}
HeapFree( GetProcessHeap(), 0, path );
return ret;
}
static BOOL get_icon_text_metrics( HWND hwnd, TEXTMETRICW *tm )
{
BOOL ret;
HDC hdc;
LOGFONTW lf;
HFONT hfont;
hdc = GetDC( hwnd );
SystemParametersInfoW( SPI_GETICONTITLELOGFONT, sizeof(lf), &lf, 0 );
hfont = SelectObject( hdc, CreateFontIndirectW( &lf ) );
ret = GetTextMetricsW( hdc, tm );
SelectObject( hdc, hfont );
ReleaseDC( hwnd, hdc );
return ret;
}
static BOOL process_changes( const WCHAR *folder, char *buf )
{
FILE_NOTIFY_INFORMATION *info = (FILE_NOTIFY_INFORMATION *)buf;
BOOL ret = FALSE;
for (;;)
{
switch (info->Action)
{
case FILE_ACTION_ADDED:
case FILE_ACTION_RENAMED_NEW_NAME:
if (add_launcher( folder, info->FileName, info->FileNameLength / sizeof(WCHAR) ))
ret = TRUE;
break;
case FILE_ACTION_REMOVED:
case FILE_ACTION_RENAMED_OLD_NAME:
if (remove_launcher( folder, info->FileName, info->FileNameLength / sizeof(WCHAR) ))
ret = TRUE;
break;
default:
WARN( "unexpected action %u\n", info->Action );
break;
}
if (!info->NextEntryOffset) break;
info = (FILE_NOTIFY_INFORMATION *)((char *)info + info->NextEntryOffset);
}
return ret;
}
static DWORD CALLBACK watch_desktop_folders( LPVOID param )
{
HWND hwnd = param;
HRESULT init = CoInitialize( NULL );
HANDLE dir0, dir1, events[2];
OVERLAPPED ovl0, ovl1;
char *buf0 = NULL, *buf1 = NULL;
DWORD count, size = 4096, error = ERROR_OUTOFMEMORY;
BOOL ret, redraw;
dir0 = CreateFileW( desktop_folder, FILE_LIST_DIRECTORY|SYNCHRONIZE, FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS|FILE_FLAG_OVERLAPPED, NULL );
if (dir0 == INVALID_HANDLE_VALUE) return GetLastError();
dir1 = CreateFileW( desktop_folder_public, FILE_LIST_DIRECTORY|SYNCHRONIZE, FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL, OPEN_EXISTING, FILE_FLAG_BACKUP_SEMANTICS|FILE_FLAG_OVERLAPPED, NULL );
if (dir1 == INVALID_HANDLE_VALUE)
{
CloseHandle( dir0 );
return GetLastError();
}
if (!(ovl0.hEvent = events[0] = CreateEventW( NULL, FALSE, FALSE, NULL ))) goto error;
if (!(ovl1.hEvent = events[1] = CreateEventW( NULL, FALSE, FALSE, NULL ))) goto error;
if (!(buf0 = HeapAlloc( GetProcessHeap(), 0, size ))) goto error;
if (!(buf1 = HeapAlloc( GetProcessHeap(), 0, size ))) goto error;
for (;;)
{
ret = ReadDirectoryChangesW( dir0, buf0, size, FALSE, FILE_NOTIFY_CHANGE_FILE_NAME, NULL, &ovl0, NULL );
if (!ret)
{
error = GetLastError();
goto error;
}
ret = ReadDirectoryChangesW( dir1, buf1, size, FALSE, FILE_NOTIFY_CHANGE_FILE_NAME, NULL, &ovl1, NULL );
if (!ret)
{
error = GetLastError();
goto error;
}
redraw = FALSE;
switch ((error = WaitForMultipleObjects( 2, events, FALSE, INFINITE )))
{
case WAIT_OBJECT_0:
if (!GetOverlappedResult( dir0, &ovl0, &count, FALSE ) || !count) break;
if (process_changes( desktop_folder, buf0 )) redraw = TRUE;
break;
case WAIT_OBJECT_0 + 1:
if (!GetOverlappedResult( dir1, &ovl1, &count, FALSE ) || !count) break;
if (process_changes( desktop_folder_public, buf1 )) redraw = TRUE;
break;
default:
goto error;
}
if (redraw) InvalidateRect( hwnd, NULL, TRUE );
}
error:
CloseHandle( dir0 );
CloseHandle( dir1 );
CloseHandle( events[0] );
CloseHandle( events[1] );
HeapFree( GetProcessHeap(), 0, buf0 );
HeapFree( GetProcessHeap(), 0, buf1 );
if (SUCCEEDED( init )) CoUninitialize();
return error;
}
static void add_folder( const WCHAR *folder )
{
static const WCHAR lnkW[] = {'\\','*','.','l','n','k',0};
int len = strlenW( folder ) + strlenW( lnkW );
WIN32_FIND_DATAW data;
HANDLE handle;
WCHAR *glob;
if (!(glob = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) ))) return;
strcpyW( glob, folder );
strcatW( glob, lnkW );
if ((handle = FindFirstFileW( glob, &data )) != INVALID_HANDLE_VALUE)
{
do { add_launcher( folder, data.cFileName, -1 ); } while (FindNextFileW( handle, &data ));
FindClose( handle );
}
HeapFree( GetProcessHeap(), 0, glob );
}
#define BORDER_SIZE 4
#define PADDING_SIZE 4
#define TITLE_CHARS 14
static void initialize_launchers( HWND hwnd )
{
HRESULT hr, init;
TEXTMETRICW tm;
int icon_size;
if (!(get_icon_text_metrics( hwnd, &tm ))) return;
icon_cx = GetSystemMetrics( SM_CXICON );
icon_cy = GetSystemMetrics( SM_CYICON );
icon_size = max( icon_cx, icon_cy );
title_cy = tm.tmHeight * 2;
title_cx = max( tm.tmAveCharWidth * TITLE_CHARS, icon_size + PADDING_SIZE + title_cy );
launcher_size = BORDER_SIZE + title_cx + BORDER_SIZE;
icon_offset_cx = (launcher_size - icon_cx) / 2;
icon_offset_cy = BORDER_SIZE + (icon_size - icon_cy) / 2;
title_offset_cx = BORDER_SIZE;
title_offset_cy = BORDER_SIZE + icon_size + PADDING_SIZE;
desktop_width = GetSystemMetrics( SM_CXSCREEN );
launchers_per_row = desktop_width / launcher_size;
hr = SHGetKnownFolderPath( &FOLDERID_Desktop, KF_FLAG_CREATE, NULL, &desktop_folder );
if (FAILED( hr ))
{
WINE_ERR("Could not get user desktop folder\n");
return;
}
hr = SHGetKnownFolderPath( &FOLDERID_PublicDesktop, KF_FLAG_CREATE, NULL, &desktop_folder_public );
if (FAILED( hr ))
{
WINE_ERR("Could not get public desktop folder\n");
CoTaskMemFree( desktop_folder );
return;
}
if ((launchers = HeapAlloc( GetProcessHeap(), 0, 2 * sizeof(launchers[0]) )))
{
nb_allocated = 2;
init = CoInitialize( NULL );
add_folder( desktop_folder );
add_folder( desktop_folder_public );
if (SUCCEEDED( init )) CoUninitialize();
CreateThread( NULL, 0, watch_desktop_folders, hwnd, 0, NULL );
}
}
/* screen saver handler */
static BOOL start_screensaver( void )
{
if (using_root)
{
const char *argv[3] = { "xdg-screensaver", "activate", NULL };
int pid = _spawnvp( _P_DETACH, argv[0], argv );
if (pid > 0)
{
WINE_TRACE( "started process %d\n", pid );
return TRUE;
}
}
return FALSE;
}
/* window procedure for the desktop window */
static LRESULT WINAPI desktop_wnd_proc( HWND hwnd, UINT message, WPARAM wp, LPARAM lp )
{
WINE_TRACE( "got msg %04x wp %lx lp %lx\n", message, wp, lp );
switch(message)
{
case WM_SYSCOMMAND:
switch(wp & 0xfff0)
{
case SC_CLOSE:
ExitWindows( 0, 0 );
break;
case SC_SCREENSAVE:
return start_screensaver();
}
return 0;
case WM_CLOSE:
PostQuitMessage(0);
return 0;
case WM_SETCURSOR:
return (LRESULT)SetCursor( LoadCursorA( 0, (LPSTR)IDC_ARROW ) );
case WM_NCHITTEST:
return HTCLIENT;
case WM_ERASEBKGND:
if (!using_root) PaintDesktop( (HDC)wp );
return TRUE;
case WM_SETTINGCHANGE:
if (wp == SPI_SETDESKWALLPAPER)
SystemParametersInfoW( SPI_SETDESKWALLPAPER, 0, NULL, FALSE );
return 0;
case WM_LBUTTONDBLCLK:
if (!using_root)
{
const struct launcher *launcher = launcher_from_point( (short)LOWORD(lp), (short)HIWORD(lp) );
if (launcher) do_launch( launcher );
}
return 0;
case WM_PAINT:
{
PAINTSTRUCT ps;
BeginPaint( hwnd, &ps );
if (!using_root)
{
if (ps.fErase) PaintDesktop( ps.hdc );
draw_launchers( ps.hdc, ps.rcPaint );
}
EndPaint( hwnd, &ps );
}
return 0;
default:
return DefWindowProcW( hwnd, message, wp, lp );
}
}
/* create the desktop and the associated driver window, and make it the current desktop */
static BOOL create_desktop( HMODULE driver, const WCHAR *name, unsigned int width, unsigned int height )
{
static const WCHAR rootW[] = {'r','o','o','t',0};
BOOL ret = FALSE;
BOOL (CDECL *create_desktop_func)(unsigned int, unsigned int);
/* magic: desktop "root" means use the root window */
if (driver && strcmpiW( name, rootW ))
{
create_desktop_func = (void *)GetProcAddress( driver, "wine_create_desktop" );
if (create_desktop_func) ret = create_desktop_func( width, height );
}
return ret;
}
/* parse the desktop size specification */
static BOOL parse_size( const WCHAR *size, unsigned int *width, unsigned int *height )
{
WCHAR *end;
*width = strtoulW( size, &end, 10 );
if (end == size) return FALSE;
if (*end != 'x') return FALSE;
size = end + 1;
*height = strtoulW( size, &end, 10 );
return !*end;
}
/* retrieve the desktop name to use if not specified on the command line */
static const WCHAR *get_default_desktop_name(void)
{
static const WCHAR desktopW[] = {'D','e','s','k','t','o','p',0};
static const WCHAR defaultW[] = {'D','e','f','a','u','l','t',0};
static const WCHAR explorer_keyW[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e','\\',
'E','x','p','l','o','r','e','r',0};
static WCHAR buffer[MAX_PATH];
DWORD size = sizeof(buffer);
HDESK desk = GetThreadDesktop( GetCurrentThreadId() );
WCHAR *ret = NULL;
HKEY hkey;
if (desk && GetUserObjectInformationW( desk, UOI_NAME, buffer, sizeof(buffer)/sizeof(WCHAR), NULL ))
{
if (strcmpiW( buffer, defaultW )) return buffer;
}
/* @@ Wine registry key: HKCU\Software\Wine\Explorer */
if (!RegOpenKeyW( HKEY_CURRENT_USER, explorer_keyW, &hkey ))
{
if (!RegQueryValueExW( hkey, desktopW, 0, NULL, (LPBYTE)buffer, &size )) ret = buffer;
RegCloseKey( hkey );
}
return ret;
}
/* retrieve the default desktop size from the registry */
static BOOL get_default_desktop_size( const WCHAR *name, unsigned int *width, unsigned int *height )
{
static const WCHAR desktop_keyW[] = {'S','o','f','t','w','a','r','e','\\','W','i','n','e','\\',
'E','x','p','l','o','r','e','r','\\',
'D','e','s','k','t','o','p','s',0};
HKEY hkey;
WCHAR buffer[64];
DWORD size = sizeof(buffer);
BOOL found = FALSE;
*width = 800;
*height = 600;
/* @@ Wine registry key: HKCU\Software\Wine\Explorer\Desktops */
if (!RegOpenKeyW( HKEY_CURRENT_USER, desktop_keyW, &hkey ))
{
if (!RegQueryValueExW( hkey, name, 0, NULL, (LPBYTE)buffer, &size ))
{
found = TRUE;
if (!parse_size( buffer, width, height )) *width = *height = 0;
}
RegCloseKey( hkey );
}
return found;
}
static void set_desktop_guid( HWND desktop, GUID *guid, HMODULE driver )
{
static const WCHAR device_keyW[] = {
'S','y','s','t','e','m','\\',
'C','u','r','r','e','n','t','C','o','n','t','r','o','l','S','e','t','\\',
'C','o','n','t','r','o','l','\\',
'V','i','d','e','o','\\',
'{','%','s','}','\\','0','0','0','0',0};
static const WCHAR driverW[] = {'G','r','a','p','h','i','c','s','D','r','i','v','e','r',0};
RPC_WSTR guid_str;
HKEY hkey;
WCHAR key[sizeof(device_keyW)/sizeof(WCHAR) + 39];
UuidToStringW( guid, &guid_str );
sprintfW( key, device_keyW, guid_str );
RpcStringFreeW( &guid_str );
if (!RegCreateKeyExW( HKEY_LOCAL_MACHINE, key, 0, NULL,
REG_OPTION_VOLATILE, KEY_SET_VALUE, NULL, &hkey, NULL ))
{
WCHAR path[MAX_PATH];
GetModuleFileNameW( driver, path, MAX_PATH );
RegSetValueExW( hkey, driverW, 0, REG_SZ, (BYTE *)path, (strlenW(path) + 1) * sizeof(WCHAR) );
RegCloseKey( hkey );
}
else ERR( "failed to create %s\n", debugstr_w(key) );
}
static void initialize_display_settings(void)
{
DEVMODEW dmW;
/* Store current display mode in the registry */
if (EnumDisplaySettingsExW( NULL, ENUM_CURRENT_SETTINGS, &dmW, 0 ))
{
WINE_TRACE( "Current display mode %ux%u %u bpp %u Hz\n", dmW.dmPelsWidth,
dmW.dmPelsHeight, dmW.dmBitsPerPel, dmW.dmDisplayFrequency );
ChangeDisplaySettingsExW( NULL, &dmW, 0,
CDS_GLOBAL | CDS_NORESET | CDS_UPDATEREGISTRY,
NULL );
}
}
static void set_desktop_window_title( HWND hwnd, const WCHAR *name )
{
static const WCHAR desktop_nameW[] = {'W','i','n','e',' ','d','e','s','k','t','o','p',0};
static const WCHAR desktop_name_separatorW[] = {' ', '-', ' ', 0};
WCHAR *window_titleW = NULL;
int window_title_len;
if (!name[0])
{
SetWindowTextW( hwnd, desktop_nameW );
return;
}
window_title_len = strlenW(name) * sizeof(WCHAR)
+ sizeof(desktop_name_separatorW)
+ sizeof(desktop_nameW);
window_titleW = HeapAlloc( GetProcessHeap(), 0, window_title_len );
if (!window_titleW)
{
SetWindowTextW( hwnd, desktop_nameW );
return;
}
strcpyW( window_titleW, name );
strcatW( window_titleW, desktop_name_separatorW );
strcatW( window_titleW, desktop_nameW );
SetWindowTextW( hwnd, window_titleW );
HeapFree( GetProcessHeap(), 0, window_titleW );
}
/* main desktop management function */
void manage_desktop( WCHAR *arg )
{
static const WCHAR messageW[] = {'M','e','s','s','a','g','e',0};
HDESK desktop = 0;
GUID guid;
MSG msg;
HDC hdc;
HWND hwnd, msg_hwnd;
unsigned int width, height;
WCHAR *cmdline = NULL;
WCHAR *p = arg;
const WCHAR *name = NULL;
/* get the rest of the command line (if any) */
while (*p && !isspace(*p)) p++;
if (*p)
{
*p++ = 0;
while (*p && isspace(*p)) p++;
if (*p) cmdline = p;
}
/* parse the desktop option */
/* the option is of the form /desktop=name[,widthxheight] */
if (*arg == '=' || *arg == ',')
{
arg++;
name = arg;
if ((p = strchrW( arg, ',' ))) *p++ = 0;
if (!p || !parse_size( p, &width, &height ))
get_default_desktop_size( name, &width, &height );
}
else if ((name = get_default_desktop_name()))
{
if (!get_default_desktop_size( name, &width, &height )) width = height = 0;
}
if (name && width && height)
{
if (!(desktop = CreateDesktopW( name, NULL, NULL, 0, DESKTOP_ALL_ACCESS, NULL )))
{
WINE_ERR( "failed to create desktop %s error %d\n", wine_dbgstr_w(name), GetLastError() );
ExitProcess( 1 );
}
SetThreadDesktop( desktop );
}
UuidCreate( &guid );
TRACE( "display guid %s\n", debugstr_guid(&guid) );
/* create the desktop window */
hwnd = CreateWindowExW( 0, DESKTOP_CLASS_ATOM, NULL,
WS_POPUP | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, 0, 0, 0, 0, 0, 0, 0, &guid );
/* create the HWND_MESSAGE parent */
msg_hwnd = CreateWindowExW( 0, messageW, NULL, WS_POPUP | WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
0, 0, 100, 100, 0, 0, 0, NULL );
if (hwnd == GetDesktopWindow())
{
HMODULE shell32, graphics_driver;
void (WINAPI *pShellDDEInit)( BOOL );
hdc = GetDC( hwnd );
graphics_driver = __wine_get_driver_module( hdc );
using_root = !desktop || !create_desktop( graphics_driver, name, width, height );
ReleaseDC( hwnd, hdc );
SetWindowLongPtrW( hwnd, GWLP_WNDPROC, (LONG_PTR)desktop_wnd_proc );
set_desktop_guid( hwnd, &guid, graphics_driver );
SendMessageW( hwnd, WM_SETICON, ICON_BIG, (LPARAM)LoadIconW( 0, MAKEINTRESOURCEW(OIC_WINLOGO)));
if (name) set_desktop_window_title( hwnd, name );
SetWindowPos( hwnd, 0, GetSystemMetrics(SM_XVIRTUALSCREEN), GetSystemMetrics(SM_YVIRTUALSCREEN),
GetSystemMetrics(SM_CXVIRTUALSCREEN), GetSystemMetrics(SM_CYVIRTUALSCREEN),
SWP_NOZORDER | SWP_NOACTIVATE | SWP_SHOWWINDOW );
SystemParametersInfoW( SPI_SETDESKWALLPAPER, 0, NULL, FALSE );
ClipCursor( NULL );
initialize_display_settings();
initialize_appbar();
initialize_systray( graphics_driver, using_root );
if (!using_root) initialize_launchers( hwnd );
if ((shell32 = LoadLibraryA( "shell32.dll" )) &&
(pShellDDEInit = (void *)GetProcAddress( shell32, (LPCSTR)188)))
{
pShellDDEInit( TRUE );
}
}
else
{
DestroyWindow( hwnd ); /* someone beat us to it */
hwnd = 0;
}
if (GetAncestor( msg_hwnd, GA_PARENT )) DestroyWindow( msg_hwnd ); /* someone beat us to it */
/* if we have a command line, execute it */
if (cmdline)
{
STARTUPINFOW si;
PROCESS_INFORMATION pi;
memset( &si, 0, sizeof(si) );
si.cb = sizeof(si);
WINE_TRACE( "starting %s\n", wine_dbgstr_w(cmdline) );
if (CreateProcessW( NULL, cmdline, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi ))
{
CloseHandle( pi.hThread );
CloseHandle( pi.hProcess );
}
}
/* run the desktop message loop */
if (hwnd)
{
WINE_TRACE( "desktop message loop starting on hwnd %p\n", hwnd );
while (GetMessageW( &msg, 0, 0, 0 )) DispatchMessageW( &msg );
WINE_TRACE( "desktop message loop exiting for hwnd %p\n", hwnd );
}
ExitProcess( 0 );
}