dlls/msi/dialog.c

   1 /*
   2  * Implementation of the Microsoft Installer (msi.dll)
   3  *
   4  * Copyright 2005 Mike McCormack for CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #define COBJMACROS
  22
  23 #include <stdarg.h>
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "winnls.h"
  29 #include "wingdi.h"
  30 #include "msi.h"
  31 #include "msipriv.h"
  32 #include "msidefs.h"
  33 #include "ocidl.h"
  34 #include "olectl.h"
  35 #include "richedit.h"
  36
  37 #include "wine/debug.h"
  38 #include "wine/unicode.h"
  39
  40 #include "action.h"
  41
  42 WINE_DEFAULT_DEBUG_CHANNEL(msi);
  43
  44
  45 struct msi_control_tag;
  46 typedef struct msi_control_tag msi_control;
  47 typedef UINT (*msi_handler)( msi_dialog *, msi_control *, WPARAM );
  48
  49 struct msi_control_tag
  50 {
  51     struct msi_control_tag *next;
  52     HWND hwnd;
  53     msi_handler handler;
  54     LPWSTR property;
  55     LPWSTR value;
  56     HBITMAP hBitmap;
  57     HICON hIcon;
  58     LPWSTR tabnext;
  59     WCHAR name[1];
  60 };
  61
  62 typedef struct msi_font_tag
  63 {
  64     struct msi_font_tag *next;
  65     HFONT hfont;
  66     WCHAR name[1];
  67 } msi_font;
  68
  69 struct msi_dialog_tag
  70 {
  71     MSIPACKAGE *package;
  72     msi_dialog_event_handler event_handler;
  73     BOOL finished;
  74     INT scale;
  75     DWORD attributes;
  76     HWND hwnd;
  77     LPWSTR default_font;
  78     msi_font *font_list;
  79     msi_control *control_list;
  80     HWND hWndFocus;
  81     WCHAR name[1];
  82 };
  83
  84 typedef UINT (*msi_dialog_control_func)( msi_dialog *dialog, MSIRECORD *rec );
  85 struct control_handler
  86 {
  87     LPCWSTR control_type;
  88     msi_dialog_control_func func;
  89 };
  90
  91 typedef struct
  92 {
  93     msi_dialog* dialog;
  94     msi_control *parent;
  95     DWORD       attributes;
  96 } radio_button_group_descr;
  97
  98 const WCHAR szMsiDialogClass[] = {
  99     'M','s','i','D','i','a','l','o','g','C','l','o','s','e','C','l','a','s','s',0
 100 };
 101 const WCHAR szMsiHiddenWindow[] = {
 102     'M','s','i','H','i','d','d','e','n','W','i','n','d','o','w',0 };
 103 const static WCHAR szStatic[] = { 'S','t','a','t','i','c',0 };
 104 const static WCHAR szButton[] = { 'B','U','T','T','O','N', 0 };
 105 const static WCHAR szButtonData[] = { 'M','S','I','D','A','T','A',0 };
 106 static const WCHAR szText[] = { 'T','e','x','t',0 };
 107 static const WCHAR szPushButton[] = { 'P','u','s','h','B','u','t','t','o','n',0 };
 108 static const WCHAR szLine[] = { 'L','i','n','e',0 };
 109 static const WCHAR szBitmap[] = { 'B','i','t','m','a','p',0 };
 110 static const WCHAR szCheckBox[] = { 'C','h','e','c','k','B','o','x',0 };
 111 static const WCHAR szScrollableText[] = {
 112     'S','c','r','o','l','l','a','b','l','e','T','e','x','t',0 };
 113 static const WCHAR szComboBox[] = { 'C','o','m','b','o','B','o','x',0 };
 114 static const WCHAR szEdit[] = { 'E','d','i','t',0 };
 115 static const WCHAR szMaskedEdit[] = { 'M','a','s','k','e','d','E','d','i','t',0 };
 116 static const WCHAR szPathEdit[] = { 'P','a','t','h','E','d','i','t',0 };
 117 static const WCHAR szRadioButtonGroup[] = {
 118     'R','a','d','i','o','B','u','t','t','o','n','G','r','o','u','p',0 };
 119 static const WCHAR szIcon[] = { 'I','c','o','n',0 };
 120
 121 static UINT msi_dialog_checkbox_handler( msi_dialog *, msi_control *, WPARAM );
 122 static void msi_dialog_checkbox_sync_state( msi_dialog *, msi_control * );
 123 static UINT msi_dialog_button_handler( msi_dialog *, msi_control *, WPARAM );
 124 static UINT msi_dialog_edit_handler( msi_dialog *, msi_control *, WPARAM );
 125 static UINT msi_dialog_radiogroup_handler( msi_dialog *, msi_control *, WPARAM param );
 126 static UINT msi_dialog_evaluate_control_conditions( msi_dialog *dialog );
 127 static LRESULT WINAPI MSIRadioGroup_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
 128
 129
 130 /* dialog sequencing */
 131
 132 #define WM_MSI_DIALOG_CREATE  (WM_USER+0x100)
 133 #define WM_MSI_DIALOG_DESTROY (WM_USER+0x101)
 134
 135 static DWORD uiThreadId;
 136 static HWND hMsiHiddenWindow;
 137 static HMODULE hRichedit;
 138
 139 static INT msi_dialog_scale_unit( msi_dialog *dialog, INT val )
 140 {
 141     return (dialog->scale * val + 5) / 10;
 142 }
 143
 144 static msi_control *msi_dialog_find_control( msi_dialog *dialog, LPCWSTR name )
 145 {
 146     msi_control *control;
 147
 148     if( !name )
 149         return NULL;
 150     for( control = dialog->control_list; control; control = control->next )
 151         if( !strcmpW( control->name, name ) ) /* FIXME: case sensitive? */
 152             break;
 153     return control;
 154 }
 155
 156 static msi_control *msi_dialog_find_control_by_hwnd( msi_dialog *dialog, HWND hwnd )
 157 {
 158     msi_control *control;
 159
 160     for( control = dialog->control_list; control; control = control->next )
 161         if( hwnd == control->hwnd )
 162             break;
 163     return control;
 164 }
 165
 166 /*
 167  * msi_dialog_get_style
 168  *
 169  * Extract the {\style} string from the front of the text to display and
 170  *  update the pointer.
 171  */
 172 static LPWSTR msi_dialog_get_style( LPCWSTR *text )
 173 {
 174     LPWSTR ret = NULL;
 175     LPCWSTR p = *text, q;
 176     DWORD len;
 177
 178     if( *p++ != '{' )
 179         return ret;
 180     q = strchrW( p, '}' );
 181     if( !q )
 182         return ret;
 183     *text = ++q;
 184     if( *p++ != '\\' )
 185         return ret;
 186     len = q - p;
 187
 188     ret = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
 189     if( !ret )
 190         return ret;
 191     memcpy( ret, p, len*sizeof(WCHAR) );
 192     ret[len-1] = 0;
 193     return ret;
 194 }
 195
 196 static UINT msi_dialog_add_font( MSIRECORD *rec, LPVOID param )
 197 {
 198     msi_dialog *dialog = param;
 199     msi_font *font;
 200     LPCWSTR face, name;
 201     LOGFONTW lf;
 202     INT style;
 203     HDC hdc;
 204
 205     /* create a font and add it to the list */
 206     name = MSI_RecordGetString( rec, 1 );
 207     font = HeapAlloc( GetProcessHeap(), 0,
 208                       sizeof *font + strlenW( name )*sizeof (WCHAR) );
 209     strcpyW( font->name, name );
 210     font->next = dialog->font_list;
 211     dialog->font_list = font;
 212
 213     memset( &lf, 0, sizeof lf );
 214     face = MSI_RecordGetString( rec, 2 );
 215     lf.lfHeight = MSI_RecordGetInteger( rec, 3 );
 216     style = MSI_RecordGetInteger( rec, 5 );
 217     if( style & msidbTextStyleStyleBitsBold )
 218         lf.lfWeight = FW_BOLD;
 219     if( style & msidbTextStyleStyleBitsItalic )
 220         lf.lfItalic = TRUE;
 221     if( style & msidbTextStyleStyleBitsUnderline )
 222         lf.lfUnderline = TRUE;
 223     if( style & msidbTextStyleStyleBitsStrike )
 224         lf.lfStrikeOut = TRUE;
 225     lstrcpynW( lf.lfFaceName, face, LF_FACESIZE );
 226
 227     /* adjust the height */
 228     hdc = GetDC( dialog->hwnd );
 229     if (hdc)
 230     {
 231         lf.lfHeight = -MulDiv(lf.lfHeight, GetDeviceCaps(hdc, LOGPIXELSY), 72);
 232         ReleaseDC( dialog->hwnd, hdc );
 233     }
 234
 235     font->hfont = CreateFontIndirectW( &lf );
 236
 237     TRACE("Adding font style %s\n", debugstr_w(font->name) );
 238
 239     return ERROR_SUCCESS;
 240 }
 241
 242 static msi_font *msi_dialog_find_font( msi_dialog *dialog, LPCWSTR name )
 243 {
 244     msi_font *font;
 245
 246     for( font = dialog->font_list; font; font = font->next )
 247         if( !strcmpW( font->name, name ) )  /* FIXME: case sensitive? */
 248             break;
 249
 250     return font;
 251 }
 252
 253 static UINT msi_dialog_set_font( msi_dialog *dialog, HWND hwnd, LPCWSTR name )
 254 {
 255     msi_font *font;
 256
 257     font = msi_dialog_find_font( dialog, name );
 258     if( font )
 259         SendMessageW( hwnd, WM_SETFONT, (WPARAM) font->hfont, TRUE );
 260     else
 261         ERR("No font entry for %s\n", debugstr_w(name));
 262     return ERROR_SUCCESS;
 263 }
 264
 265 static UINT msi_dialog_build_font_list( msi_dialog *dialog )
 266 {
 267     static const WCHAR query[] = {
 268       'S','E','L','E','C','T',' ','*',' ',
 269       'F','R','O','M',' ','`','T','e','x','t','S','t','y','l','e','`',' ',0
 270     };
 271     UINT r;
 272     MSIQUERY *view = NULL;
 273
 274     TRACE("dialog %p\n", dialog );
 275
 276     r = MSI_OpenQuery( dialog->package->db, &view, query );
 277     if( r != ERROR_SUCCESS )
 278         return r;
 279
 280     r = MSI_IterateRecords( view, NULL, msi_dialog_add_font, dialog );
 281     msiobj_release( &view->hdr );
 282
 283     return r;
 284 }
 285
 286 static msi_control *msi_dialog_create_window( msi_dialog *dialog,
 287                 MSIRECORD *rec, LPCWSTR szCls, LPCWSTR name, LPCWSTR text,
 288                 DWORD style, HWND parent )
 289 {
 290     DWORD x, y, width, height;
 291     LPWSTR font = NULL, title = NULL;
 292     msi_control *control;
 293
 294     style |= WS_CHILD;
 295
 296     control = HeapAlloc( GetProcessHeap(), 0,
 297                          sizeof *control + strlenW(name)*sizeof(WCHAR) );
 298     strcpyW( control->name, name );
 299     control->next = dialog->control_list;
 300     dialog->control_list = control;
 301     control->handler = NULL;
 302     control->property = NULL;
 303     control->value = NULL;
 304     control->hBitmap = NULL;
 305     control->hIcon = NULL;
 306     control->tabnext = strdupW( MSI_RecordGetString( rec, 11) );
 307
 308     x = MSI_RecordGetInteger( rec, 4 );
 309     y = MSI_RecordGetInteger( rec, 5 );
 310     width = MSI_RecordGetInteger( rec, 6 );
 311     height = MSI_RecordGetInteger( rec, 7 );
 312
 313     x = msi_dialog_scale_unit( dialog, x );
 314     y = msi_dialog_scale_unit( dialog, y );
 315     width = msi_dialog_scale_unit( dialog, width );
 316     height = msi_dialog_scale_unit( dialog, height );
 317
 318     if( text )
 319     {
 320         font = msi_dialog_get_style( &text );
 321         deformat_string( dialog->package, text, &title );
 322     }
 323
 324     control->hwnd = CreateWindowW( szCls, title, style,
 325                           x, y, width, height, parent, NULL, NULL, NULL );
 326
 327     TRACE("Dialog %s control %s hwnd %p\n",
 328            debugstr_w(dialog->name), debugstr_w(text), control->hwnd );
 329
 330     msi_dialog_set_font( dialog, control->hwnd,
 331                          font ? font : dialog->default_font );
 332
 333     HeapFree( GetProcessHeap(), 0, font );
 334     HeapFree( GetProcessHeap(), 0, title );
 335
 336     return control;
 337 }
 338
 339 /* called from the Control Event subscription code */
 340 void msi_dialog_handle_event( msi_dialog* dialog, LPCWSTR control,
 341                               LPCWSTR attribute, MSIRECORD *rec )
 342 {
 343     msi_control* ctrl;
 344     LPCWSTR text;
 345
 346     ctrl = msi_dialog_find_control( dialog, control );
 347     if (!ctrl)
 348         return;
 349     if( lstrcmpW(attribute, szText) )
 350         return;
 351     text = MSI_RecordGetString( rec , 1 );
 352     SetWindowTextW( ctrl->hwnd, text );
 353     msi_dialog_check_messages( NULL );
 354 }
 355
 356 static void msi_dialog_map_events(msi_dialog* dialog, LPCWSTR control)
 357 {
 358     static WCHAR Query[] = {
 359         'S','E','L','E','C','T',' ','*',' ','F','R','O','M',' ',
 360          '`','E','v','e','n','t','M','a','p','p','i','n','g','`',' ',
 361         'W','H','E','R','E',' ',
 362          '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',' ',
 363         'A','N','D',' ',
 364          '`','C','o','n','t','r','o','l','_','`',' ','=',' ','\'','%','s','\'',0
 365     };
 366     MSIRECORD *row;
 367     LPCWSTR event, attribute;
 368
 369     row = MSI_QueryGetRecord( dialog->package->db, Query, dialog->name, control );
 370     if (!row)
 371         return;
 372
 373     event = MSI_RecordGetString( row, 3 );
 374     attribute = MSI_RecordGetString( row, 4 );
 375     ControlEvent_SubscribeToEvent( dialog->package, event, control, attribute );
 376     msiobj_release( &row->hdr );
 377 }
 378
 379 /* everything except radio buttons */
 380 static msi_control *msi_dialog_add_control( msi_dialog *dialog,
 381                 MSIRECORD *rec, LPCWSTR szCls, DWORD style )
 382 {
 383     DWORD attributes;
 384     LPCWSTR text, name;
 385
 386     name = MSI_RecordGetString( rec, 2 );
 387     attributes = MSI_RecordGetInteger( rec, 8 );
 388     text = MSI_RecordGetString( rec, 10 );
 389     if( attributes & msidbControlAttributesVisible )
 390         style |= WS_VISIBLE;
 391     if( ~attributes & msidbControlAttributesEnabled )
 392         style |= WS_DISABLED;
 393
 394     msi_dialog_map_events(dialog, name);
 395
 396     return msi_dialog_create_window( dialog, rec, szCls, name, text,
 397                                      style, dialog->hwnd );
 398 }
 399
 400 struct msi_text_info
 401 {
 402     WNDPROC oldproc;
 403     DWORD attributes;
 404 };
 405
 406 /*
 407  * we don't erase our own background,
 408  * so we have to make sure that the parent window redraws first
 409  */
 410 static void msi_text_on_settext( HWND hWnd )
 411 {
 412     HWND hParent;
 413     RECT rc;
 414
 415     hParent = GetParent( hWnd );
 416     GetWindowRect( hWnd, &rc );
 417     MapWindowPoints( NULL, hParent, (LPPOINT) &rc, 2 );
 418     InvalidateRect( hParent, &rc, TRUE );
 419 }
 420
 421 static LRESULT WINAPI
 422 MSIText_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 423 {
 424     struct msi_text_info *info;
 425     LRESULT r = 0;
 426
 427     TRACE("%p %04x %08x %08lx\n", hWnd, msg, wParam, lParam);
 428
 429     info = GetPropW(hWnd, szButtonData);
 430
 431     if( msg == WM_CTLCOLORSTATIC &&
 432        ( info->attributes & msidbControlAttributesTransparent ) )
 433     {
 434         SetBkMode( (HDC)wParam, TRANSPARENT );
 435         return (LRESULT) GetStockObject(NULL_BRUSH);
 436     }
 437
 438     r = CallWindowProcW(info->oldproc, hWnd, msg, wParam, lParam);
 439
 440     switch( msg )
 441     {
 442     case WM_SETTEXT:
 443         msi_text_on_settext( hWnd );
 444         break;
 445     case WM_NCDESTROY:
 446         HeapFree( GetProcessHeap(), 0, info );
 447         RemovePropW( hWnd, szButtonData );
 448         break;
 449     }
 450
 451     return r;
 452 }
 453
 454 static UINT msi_dialog_text_control( msi_dialog *dialog, MSIRECORD *rec )
 455 {
 456     msi_control *control;
 457     struct msi_text_info *info;
 458
 459     TRACE("%p %p\n", dialog, rec);
 460
 461     control = msi_dialog_add_control( dialog, rec, szStatic, SS_LEFT | WS_GROUP );
 462     if( !control )
 463         return ERROR_FUNCTION_FAILED;
 464
 465     info = HeapAlloc( GetProcessHeap(), 0, sizeof *info );
 466     if( !info )
 467         return ERROR_SUCCESS;
 468
 469     info->attributes = MSI_RecordGetInteger( rec, 8 );
 470     if( info->attributes & msidbControlAttributesTransparent )
 471         SetWindowLongPtrW( control->hwnd, GWL_EXSTYLE, WS_EX_TRANSPARENT );
 472
 473     info->oldproc = (WNDPROC) SetWindowLongPtrW( control->hwnd, GWLP_WNDPROC,
 474                                           (LONG_PTR)MSIText_WndProc );
 475     SetPropW( control->hwnd, szButtonData, info );
 476
 477     return ERROR_SUCCESS;
 478 }
 479
 480 static UINT msi_dialog_button_control( msi_dialog *dialog, MSIRECORD *rec )
 481 {
 482     msi_control *control;
 483
 484     TRACE("%p %p\n", dialog, rec);
 485
 486     control = msi_dialog_add_control( dialog, rec, szButton, WS_TABSTOP );
 487     control->handler = msi_dialog_button_handler;
 488
 489     return ERROR_SUCCESS;
 490 }
 491
 492 static LPWSTR msi_get_checkbox_value( msi_dialog *dialog, LPCWSTR prop )
 493 {
 494     const static WCHAR query[] = {
 495         'S','E','L','E','C','T',' ','*',' ',
 496         'F','R','O','M',' ','`','C','h','e','c','k','B','o','x',' ','`',
 497         'W','H','E','R','E',' ',
 498         '`','P','r','o','p','e','r','t','y','`',' ','=',' ',
 499         '\'','%','s','\'',0
 500     };
 501     MSIRECORD *rec = NULL;
 502     LPCWSTR val = NULL;
 503     LPWSTR ret = NULL;
 504
 505     /* find if there is a value associated with the checkbox */
 506     rec = MSI_QueryGetRecord( dialog->package->db, query, prop );
 507     if (!rec)
 508         return ret;
 509
 510     val = MSI_RecordGetString( rec, 2 );
 511     if (val)
 512     {
 513         deformat_string( dialog->package, val, &ret );
 514         if( ret && !ret[0] )
 515         {
 516             HeapFree( GetProcessHeap(), 0, ret );
 517             ret = NULL;
 518         }
 519     }
 520     msiobj_release( &rec->hdr );
 521     if (ret)
 522         return ret;
 523
 524     ret = load_dynamic_property(dialog->package, prop, NULL);
 525     if( ret && !ret[0] )
 526     {
 527         HeapFree( GetProcessHeap(), 0, ret );
 528         ret = NULL;
 529     }
 530
 531     return ret;
 532 }
 533
 534 static UINT msi_dialog_checkbox_control( msi_dialog *dialog, MSIRECORD *rec )
 535 {
 536     msi_control *control;
 537     LPCWSTR prop;
 538
 539     TRACE("%p %p\n", dialog, rec);
 540
 541     control = msi_dialog_add_control( dialog, rec, szButton,
 542                                 BS_CHECKBOX | BS_MULTILINE | WS_TABSTOP );
 543     control->handler = msi_dialog_checkbox_handler;
 544     prop = MSI_RecordGetString( rec, 9 );
 545     if( prop )
 546     {
 547         control->property = strdupW( prop );
 548         control->value = msi_get_checkbox_value( dialog, prop );
 549         TRACE("control %s value %s\n", debugstr_w(control->property),
 550               debugstr_w(control->value));
 551     }
 552     msi_dialog_checkbox_sync_state( dialog, control );
 553
 554     return ERROR_SUCCESS;
 555 }
 556
 557 static UINT msi_dialog_line_control( msi_dialog *dialog, MSIRECORD *rec )
 558 {
 559     TRACE("%p %p\n", dialog, rec);
 560
 561     msi_dialog_add_control( dialog, rec, szStatic, SS_ETCHEDHORZ | SS_SUNKEN );
 562     return ERROR_SUCCESS;
 563 }
 564
 565 struct msi_streamin_info
 566 {
 567     LPSTR string;
 568     DWORD offset;
 569     DWORD length;
 570 };
 571
 572 static DWORD CALLBACK
 573 msi_richedit_stream_in( DWORD_PTR arg, LPBYTE buffer, LONG count, LONG *pcb )
 574 {
 575     struct msi_streamin_info *info = (struct msi_streamin_info*) arg;
 576
 577     if( (count + info->offset) > info->length )
 578         count = info->length - info->offset;
 579     memcpy( buffer, &info->string[ info->offset ], count );
 580     *pcb = count;
 581     info->offset += count;
 582
 583     TRACE("%ld/%ld\n", info->offset, info->length);
 584
 585     return 0;
 586 }
 587
 588 static UINT msi_dialog_scrolltext_control( msi_dialog *dialog, MSIRECORD *rec )
 589 {
 590     const static WCHAR szRichEdit20W[] = {
 591         'R','i','c','h','E','d','i','t','2','0','W',0
 592     };
 593     struct msi_streamin_info info;
 594     msi_control *control;
 595     LPCWSTR text;
 596     EDITSTREAM es;
 597     DWORD style;
 598
 599     style = WS_BORDER | ES_MULTILINE | WS_VSCROLL |
 600             ES_READONLY | ES_AUTOVSCROLL | WS_TABSTOP;
 601     control = msi_dialog_add_control( dialog, rec, szRichEdit20W, style );
 602
 603     text = MSI_RecordGetString( rec, 10 );
 604     info.string = strdupWtoA( text );
 605     info.offset = 0;
 606     info.length = lstrlenA( info.string ) + 1;
 607
 608     es.dwCookie = (DWORD_PTR) &info;
 609     es.dwError = 0;
 610     es.pfnCallback = msi_richedit_stream_in;
 611
 612     SendMessageW( control->hwnd, EM_STREAMIN, SF_RTF, (LPARAM) &es );
 613
 614     HeapFree( GetProcessHeap(), 0, info.string );
 615
 616     return ERROR_SUCCESS;
 617 }
 618
 619 static MSIRECORD *msi_get_binary_record( MSIDATABASE *db, LPCWSTR name )
 620 {
 621     const static WCHAR query[] = {
 622         's','e','l','e','c','t',' ','*',' ',
 623         'f','r','o','m',' ','B','i','n','a','r','y',' ',
 624         'w','h','e','r','e',' ',
 625             '`','N','a','m','e','`',' ','=',' ','\'','%','s','\'',0
 626     };
 627
 628     return MSI_QueryGetRecord( db, query, name );
 629 }
 630
 631 static LPWSTR msi_create_tmp_path(void)
 632 {
 633     WCHAR tmp[MAX_PATH];
 634     LPWSTR path = NULL;
 635     static const WCHAR prefix[] = { 'm','s','i',0 };
 636     DWORD len, r;
 637
 638     r = GetTempPathW( MAX_PATH, tmp );
 639     if( !r )
 640         return path;
 641     len = lstrlenW( tmp ) + 20;
 642     path = HeapAlloc( GetProcessHeap(), 0, len * sizeof (WCHAR) );
 643     if( path )
 644     {
 645         r = GetTempFileNameW( tmp, prefix, 0, path );
 646         if (!r)
 647         {
 648             HeapFree( GetProcessHeap(), 0, path );
 649             path = NULL;
 650         }
 651     }
 652     return path;
 653 }
 654
 655 static HANDLE msi_load_image( MSIDATABASE *db, LPCWSTR name, UINT type,
 656                               UINT cx, UINT cy, UINT flags )
 657 {
 658     MSIRECORD *rec = NULL;
 659     HANDLE himage = NULL;
 660     LPWSTR tmp;
 661     UINT r;
 662
 663     TRACE("%p %s %u %u %08x\n", db, debugstr_w(name), cx, cy, flags);
 664
 665     tmp = msi_create_tmp_path();
 666     if( !tmp )
 667         return himage;
 668
 669     rec = msi_get_binary_record( db, name );
 670     if( rec )
 671     {
 672         r = MSI_RecordStreamToFile( rec, 2, tmp );
 673         if( r == ERROR_SUCCESS )
 674         {
 675             himage = LoadImageW( 0, tmp, type, cx, cy, flags );
 676             DeleteFileW( tmp );
 677         }
 678         msiobj_release( &rec->hdr );
 679     }
 680
 681     HeapFree( GetProcessHeap(), 0, tmp );
 682     return himage;
 683 }
 684
 685 static UINT msi_dialog_bitmap_control( msi_dialog *dialog, MSIRECORD *rec )
 686 {
 687     UINT cx, cy, flags, style, attributes;
 688     msi_control *control;
 689     LPCWSTR text;
 690
 691     flags = LR_LOADFROMFILE;
 692     style = SS_BITMAP | SS_LEFT | WS_GROUP;
 693
 694     attributes = MSI_RecordGetInteger( rec, 8 );
 695     if( attributes & msidbControlAttributesFixedSize )
 696     {
 697         flags |= LR_DEFAULTSIZE;
 698     }
 699         style |= SS_CENTERIMAGE;
 700
 701     control = msi_dialog_add_control( dialog, rec, szStatic, style );
 702     text = MSI_RecordGetString( rec, 10 );
 703     cx = MSI_RecordGetInteger( rec, 6 );
 704     cy = MSI_RecordGetInteger( rec, 7 );
 705     cx = msi_dialog_scale_unit( dialog, cx );
 706     cy = msi_dialog_scale_unit( dialog, cy );
 707
 708     control->hBitmap = msi_load_image( dialog->package->db, text,
 709                                        IMAGE_BITMAP, cx, cy, flags );
 710     if( control->hBitmap )
 711         SendMessageW( control->hwnd, STM_SETIMAGE,
 712                       IMAGE_BITMAP, (LPARAM) control->hBitmap );
 713     else
 714         ERR("Failed to load bitmap %s\n", debugstr_w(text));
 715
 716     return ERROR_SUCCESS;
 717 }
 718
 719 static UINT msi_dialog_icon_control( msi_dialog *dialog, MSIRECORD *rec )
 720 {
 721     msi_control *control;
 722     DWORD attributes, cx = 0, cy = 0, flags;
 723     LPCWSTR text;
 724
 725     TRACE("\n");
 726
 727     control = msi_dialog_add_control( dialog, rec, szStatic,
 728                             SS_ICON | SS_CENTERIMAGE | WS_GROUP );
 729
 730     flags = LR_LOADFROMFILE | LR_DEFAULTSIZE;
 731     attributes = MSI_RecordGetInteger( rec, 8 );
 732     if( attributes & msidbControlAttributesFixedSize )
 733     {
 734         flags &= ~LR_DEFAULTSIZE;
 735         if( attributes & msidbControlAttributesIconSize16 )
 736         {
 737             cx += 16;
 738             cy += 16;
 739         }
 740         if( attributes & msidbControlAttributesIconSize32 )
 741         {
 742             cx += 32;
 743             cy += 32;
 744         }
 745         /* msidbControlAttributesIconSize48 handled by above logic */
 746     }
 747
 748     text = MSI_RecordGetString( rec, 10 );
 749     control->hIcon = msi_load_image( dialog->package->db, text,
 750                                      IMAGE_ICON, cx, cy, flags );
 751     if( control->hIcon )
 752         SendMessageW( control->hwnd, STM_SETICON, (WPARAM) control->hIcon, 0 );
 753     else
 754         ERR("Failed to load bitmap %s\n", debugstr_w(text));
 755     return ERROR_SUCCESS;
 756 }
 757
 758 static UINT msi_dialog_combo_control( msi_dialog *dialog, MSIRECORD *rec )
 759 {
 760     static const WCHAR szCombo[] = { 'C','O','M','B','O','B','O','X',0 };
 761
 762     msi_dialog_add_control( dialog, rec, szCombo,
 763                             SS_BITMAP | SS_LEFT | SS_CENTERIMAGE );
 764     return ERROR_SUCCESS;
 765 }
 766
 767 static UINT msi_dialog_edit_control( msi_dialog *dialog, MSIRECORD *rec )
 768 {
 769     msi_control *control;
 770     LPCWSTR prop;
 771     LPWSTR val;
 772
 773     control = msi_dialog_add_control( dialog, rec, szEdit,
 774                                       WS_BORDER | WS_TABSTOP );
 775     control->handler = msi_dialog_edit_handler;
 776     prop = MSI_RecordGetString( rec, 9 );
 777     if( prop )
 778         control->property = strdupW( prop );
 779     val = load_dynamic_property( dialog->package, control->property, NULL );
 780     SetWindowTextW( control->hwnd, val );
 781     HeapFree( GetProcessHeap(), 0, val );
 782     return ERROR_SUCCESS;
 783 }
 784
 785 /******************** Masked Edit ********************************************/
 786
 787 #define MASK_MAX_GROUPS 10
 788
 789 struct msi_mask_group
 790 {
 791     UINT len;
 792     UINT ofs;
 793     WCHAR type;
 794     HWND hwnd;
 795 };
 796
 797 struct msi_maskedit_info
 798 {
 799     msi_dialog *dialog;
 800     WNDPROC oldproc;
 801     HWND hwnd;
 802     LPWSTR prop;
 803     UINT num_chars;
 804     UINT num_groups;
 805     struct msi_mask_group group[MASK_MAX_GROUPS];
 806 };
 807
 808 static void msi_mask_control_change( struct msi_maskedit_info *info )
 809 {
 810     LPWSTR val;
 811     UINT i, n, r;
 812
 813     val = HeapAlloc( GetProcessHeap(), 0, (info->num_chars+1)*sizeof(WCHAR) );
 814     for( i=0, n=0; i<info->num_groups; i++ )
 815     {
 816         if( (info->group[i].len + n) > info->num_chars )
 817         {
 818             ERR("can't fit control %d text into template\n",i);
 819             break;
 820         }
 821         r = GetWindowTextW( info->group[i].hwnd, &val[n], info->group[i].len+1 );
 822         if( r != info->group[i].len )
 823             break;
 824         n += r;
 825     }
 826
 827     TRACE("%d/%d controls were good\n", i, info->num_groups);
 828
 829     if( i == info->num_groups )
 830     {
 831         TRACE("Set property %s to %s\n",
 832               debugstr_w(info->prop), debugstr_w(val) );
 833         CharUpperBuffW( val, info->num_chars );
 834         MSI_SetPropertyW( info->dialog->package, info->prop, val );
 835         msi_dialog_evaluate_control_conditions( info->dialog );
 836     }
 837     HeapFree( GetProcessHeap(), 0, val );
 838 }
 839
 840 /* now move to the next control if necessary */
 841 static VOID msi_mask_next_control( struct msi_maskedit_info *info, HWND hWnd )
 842 {
 843     HWND hWndNext;
 844     UINT len, i;
 845
 846     for( i=0; i<info->num_groups; i++ )
 847         if( info->group[i].hwnd == hWnd )
 848             break;
 849
 850     /* don't move from the last control */
 851     if( i >= (info->num_groups-1) )
 852         return;
 853
 854     len = SendMessageW( hWnd, WM_GETTEXTLENGTH, 0, 0 );
 855     if( len < info->group[i].len )
 856         return;
 857
 858     hWndNext = GetNextDlgTabItem( GetParent( hWnd ), hWnd, FALSE );
 859     SetFocus( hWndNext );
 860 }
 861
 862 static LRESULT WINAPI
 863 MSIMaskedEdit_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
 864 {
 865     struct msi_maskedit_info *info;
 866     HRESULT r;
 867
 868     TRACE("%p %04x %08x %08lx\n", hWnd, msg, wParam, lParam);
 869
 870     info = GetPropW(hWnd, szButtonData);
 871
 872     r = CallWindowProcW(info->oldproc, hWnd, msg, wParam, lParam);
 873
 874     switch( msg )
 875     {
 876     case WM_COMMAND:
 877         if (HIWORD(wParam) == EN_CHANGE)
 878         {
 879             msi_mask_control_change( info );
 880             msi_mask_next_control( info, (HWND) lParam );
 881         }
 882         break;
 883     case WM_NCDESTROY:
 884         HeapFree( GetProcessHeap(), 0, info->prop );
 885         HeapFree( GetProcessHeap(), 0, info );
 886         RemovePropW( hWnd, szButtonData );
 887         break;
 888     }
 889
 890     return r;
 891 }
 892
 893 /* fish the various bits of the property out and put them in the control */
 894 static void
 895 msi_maskedit_set_text( struct msi_maskedit_info *info, LPCWSTR text )
 896 {
 897     LPCWSTR p;
 898     UINT i;
 899
 900     p = text;
 901     for( i = 0; i < info->num_groups; i++ )
 902     {
 903         if( info->group[i].len < lstrlenW( p ) )
 904         {
 905             LPWSTR chunk = strdupW( p );
 906             chunk[ info->group[i].len ] = 0;
 907             SetWindowTextW( info->group[i].hwnd, chunk );
 908             HeapFree( GetProcessHeap(), 0, chunk );
 909         }
 910         else
 911         {
 912             SetWindowTextW( info->group[i].hwnd, p );
 913             break;
 914         }
 915         p += info->group[i].len;
 916     }
 917 }
 918
 919 static struct msi_maskedit_info * msi_dialog_parse_groups( LPCWSTR mask )
 920 {
 921     struct msi_maskedit_info * info = NULL;
 922     int i = 0, n = 0, total = 0;
 923     LPCWSTR p;
 924
 925     TRACE("masked control, template %s\n", debugstr_w(mask));
 926
 927     if( !mask )
 928         return info;
 929
 930     p = strchrW(mask, '<');
 931     if( !p )
 932         return info;
 933
 934     info = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof *info );
 935     if( !info )
 936         return info;
 937
 938     p++;
 939     for( i=0; i<MASK_MAX_GROUPS; i++ )
 940     {
 941         /* stop at the end of the string */
 942         if( p[0] == 0 || p[0] == '>' )
 943             break;
 944
 945         /* count the number of the same identifier */
 946         for( n=0; p[n] == p[0]; n++ )
 947             ;
 948         info->group[i].ofs = total;
 949         info->group[i].type = p[0];
 950         if( p[n] == '=' )
 951         {
 952             n++;
 953             total++; /* an extra not part of the group */
 954         }
 955         info->group[i].len = n;
 956         total += n;
 957         p += n;
 958     }
 959
 960     TRACE("%d characters in %d groups\n", total, info->num_groups );
 961     if( i == MASK_MAX_GROUPS )
 962         ERR("too many groups in PIDTemplate %s\n", debugstr_w(mask));
 963
 964     info->num_chars = total;
 965     info->num_groups = i;
 966
 967     return info;
 968 }
 969
 970 static void
 971 msi_maskedit_create_children( struct msi_maskedit_info *info )
 972 {
 973     DWORD width, height, style, wx, ww;
 974     LPCWSTR text, font = NULL;
 975     RECT rect;
 976     HWND hwnd;
 977     UINT i;
 978
 979     style = WS_CHILD | WS_BORDER | WS_VISIBLE | WS_TABSTOP;
 980
 981     GetClientRect( info->hwnd, &rect );
 982
 983     width = rect.right - rect.left;
 984     height = rect.bottom - rect.top;
 985
 986     if( text )
 987         font = msi_dialog_get_style( &text );
 988
 989     for( i = 0; i < info->num_groups; i++ )
 990     {
 991         wx = (info->group[i].ofs * width) / info->num_chars;
 992         ww = (info->group[i].len * width) / info->num_chars;
 993
 994         hwnd = CreateWindowW( szEdit, NULL, style, wx, 0, ww, height,
 995                               info->hwnd, NULL, NULL, NULL );
 996         if( !hwnd )
 997         {
 998             ERR("failed to create mask edit sub window\n");
 999             break;
1000         }
1001
1002         SendMessageW( hwnd, EM_LIMITTEXT, info->group[i].len, 0 );
1003
1004         msi_dialog_set_font( info->dialog, hwnd,
1005                        font ? font : info->dialog->default_font );
1006         info->group[i].hwnd = hwnd;
1007     }
1008 }
1009
1010 /* office 2003 uses "73931<````=````=````=````=`````>@@@@@" */
1011 static UINT msi_dialog_maskedit_control( msi_dialog *dialog, MSIRECORD *rec )
1012 {
1013     const static WCHAR pidt[] = {'P','I','D','T','e','m','p','l','a','t','e',0};
1014     LPWSTR mask = NULL, title = NULL, val = NULL;
1015     struct msi_maskedit_info *info = NULL;
1016     UINT ret = ERROR_SUCCESS;
1017     msi_control *control;
1018     LPCWSTR prop;
1019
1020     mask = load_dynamic_property( dialog->package, pidt, NULL );
1021     if( !mask )
1022     {
1023         ERR("PIDTemplate is empty\n");
1024         goto end;
1025     }
1026
1027     info = msi_dialog_parse_groups( mask );
1028     if( !info )
1029     {
1030         ERR("template %s is invalid\n", debugstr_w(mask));
1031         goto end;
1032     }
1033
1034     info->dialog = dialog;
1035
1036     control = msi_dialog_add_control( dialog, rec, szStatic,
1037                    SS_OWNERDRAW | WS_GROUP | WS_VISIBLE );
1038     if( !control )
1039     {
1040         ERR("Failed to create maskedit container\n");
1041         ret = ERROR_FUNCTION_FAILED;
1042         goto end;
1043     }
1044     SetWindowLongPtrW( control->hwnd, GWL_EXSTYLE, WS_EX_CONTROLPARENT );
1045
1046     info->hwnd = control->hwnd;
1047
1048     /* subclass the static control */
1049     info->oldproc = (WNDPROC) SetWindowLongPtrW( info->hwnd, GWLP_WNDPROC,
1050                                           (LONG_PTR)MSIMaskedEdit_WndProc );
1051     SetPropW( control->hwnd, szButtonData, info );
1052
1053     prop = MSI_RecordGetString( rec, 9 );
1054     if( prop )
1055         info->prop = strdupW( prop );
1056
1057     msi_maskedit_create_children( info );
1058
1059     if( prop )
1060     {
1061         val = load_dynamic_property( dialog->package, prop, NULL );
1062         if( val )
1063         {
1064             msi_maskedit_set_text( info, val );
1065             HeapFree( GetProcessHeap(), 0, val );
1066         }
1067     }
1068
1069 end:
1070     if( ret != ERROR_SUCCESS )
1071         HeapFree( GetProcessHeap(), 0, info );
1072     HeapFree( GetProcessHeap(), 0, title );
1073     HeapFree( GetProcessHeap(), 0, mask );
1074     return ret;
1075 }
1076
1077 /******************** Path Edit ********************************************/
1078
1079 static UINT msi_dialog_pathedit_control( msi_dialog *dialog, MSIRECORD *rec )
1080 {
1081     FIXME("not implemented properly\n");
1082     return msi_dialog_edit_control( dialog, rec );
1083 }
1084
1085 /* radio buttons are a bit different from normal controls */
1086 static UINT msi_dialog_create_radiobutton( MSIRECORD *rec, LPVOID param )
1087 {
1088     radio_button_group_descr *group = (radio_button_group_descr *)param;
1089     msi_dialog *dialog = group->dialog;
1090     msi_control *control;
1091     LPCWSTR prop, text, name;
1092     DWORD style;
1093     DWORD attributes = group->attributes;
1094
1095     style = WS_CHILD | BS_AUTORADIOBUTTON | BS_MULTILINE | WS_TABSTOP;
1096     name = MSI_RecordGetString( rec, 3 );
1097     text = MSI_RecordGetString( rec, 8 );
1098     if( attributes & 1 )
1099         style |= WS_VISIBLE;
1100     if( ~attributes & 2 )
1101         style |= WS_DISABLED;
1102
1103     control = msi_dialog_create_window( dialog, rec, szButton, name, text,
1104                                         style, group->parent->hwnd );
1105     control->handler = msi_dialog_radiogroup_handler;
1106
1107     prop = MSI_RecordGetString( rec, 1 );
1108     if( prop )
1109         control->property = strdupW( prop );
1110
1111     return ERROR_SUCCESS;
1112 }
1113
1114 static UINT msi_dialog_radiogroup_control( msi_dialog *dialog, MSIRECORD *rec )
1115 {
1116     static const WCHAR query[] = {
1117         'S','E','L','E','C','T',' ','*',' ',
1118         'F','R','O','M',' ','R','a','d','i','o','B','u','t','t','o','n',' ',
1119         'W','H','E','R','E',' ',
1120            '`','P','r','o','p','e','r','t','y','`',' ','=',' ','\'','%','s','\'',0};
1121     UINT r;
1122     LPCWSTR prop;
1123     msi_control *control;
1124     MSIQUERY *view = NULL;
1125     radio_button_group_descr group;
1126     MSIPACKAGE *package = dialog->package;
1127     WNDPROC oldproc;
1128
1129     prop = MSI_RecordGetString( rec, 9 );
1130
1131     TRACE("%p %p %s\n", dialog, rec, debugstr_w( prop ));
1132
1133     /* Create parent group box to hold radio buttons */
1134     control = msi_dialog_add_control( dialog, rec, szButton, BS_OWNERDRAW|WS_GROUP );
1135     if( !control )
1136         return ERROR_FUNCTION_FAILED;
1137
1138     oldproc = (WNDPROC) SetWindowLongPtrW( control->hwnd, GWLP_WNDPROC,
1139                                            (LONG_PTR)MSIRadioGroup_WndProc );
1140     SetPropW(control->hwnd, szButtonData, oldproc);
1141     SetWindowLongPtrW( control->hwnd, GWL_EXSTYLE, WS_EX_CONTROLPARENT );
1142
1143     if( prop )
1144         control->property = strdupW( prop );
1145
1146     /* query the Radio Button table for all control in this group */
1147     r = MSI_OpenQuery( package->db, &view, query, prop );
1148     if( r != ERROR_SUCCESS )
1149     {
1150         ERR("query failed for dialog %s radio group %s\n",
1151             debugstr_w(dialog->name), debugstr_w(prop));
1152         return ERROR_INVALID_PARAMETER;
1153     }
1154
1155     group.dialog = dialog;
1156     group.parent = control;
1157     group.attributes = MSI_RecordGetInteger( rec, 8 );
1158
1159     r = MSI_IterateRecords( view, 0, msi_dialog_create_radiobutton, &group );
1160     msiobj_release( &view->hdr );
1161
1162     return r;
1163 }
1164
1165 struct control_handler msi_dialog_handler[] =
1166 {
1167     { szText, msi_dialog_text_control },
1168     { szPushButton, msi_dialog_button_control },
1169     { szLine, msi_dialog_line_control },
1170     { szBitmap, msi_dialog_bitmap_control },
1171     { szCheckBox, msi_dialog_checkbox_control },
1172     { szScrollableText, msi_dialog_scrolltext_control },
1173     { szComboBox, msi_dialog_combo_control },
1174     { szEdit, msi_dialog_edit_control },
1175     { szMaskedEdit, msi_dialog_maskedit_control },
1176     { szPathEdit, msi_dialog_pathedit_control },
1177     { szRadioButtonGroup, msi_dialog_radiogroup_control },
1178     { szIcon, msi_dialog_icon_control },
1179 };
1180
1181 #define NUM_CONTROL_TYPES (sizeof msi_dialog_handler/sizeof msi_dialog_handler[0])
1182
1183 static UINT msi_dialog_create_controls( MSIRECORD *rec, LPVOID param )
1184 {
1185     msi_dialog *dialog = param;
1186     LPCWSTR control_type;
1187     UINT i;
1188
1189     /* find and call the function that can create this type of control */
1190     control_type = MSI_RecordGetString( rec, 3 );
1191     for( i=0; i<NUM_CONTROL_TYPES; i++ )
1192         if (!strcmpiW( msi_dialog_handler[i].control_type, control_type ))
1193             break;
1194     if( i != NUM_CONTROL_TYPES )
1195         msi_dialog_handler[i].func( dialog, rec );
1196     else
1197         ERR("no handler for element type %s\n", debugstr_w(control_type));
1198
1199     return ERROR_SUCCESS;
1200 }
1201
1202 static UINT msi_dialog_fill_controls( msi_dialog *dialog )
1203 {
1204     static const WCHAR query[] = {
1205         'S','E','L','E','C','T',' ','*',' ',
1206         'F','R','O','M',' ','C','o','n','t','r','o','l',' ',
1207         'W','H','E','R','E',' ',
1208            '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',0};
1209     UINT r;
1210     MSIQUERY *view = NULL;
1211     MSIPACKAGE *package = dialog->package;
1212
1213     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
1214
1215     /* query the Control table for all the elements of the control */
1216     r = MSI_OpenQuery( package->db, &view, query, dialog->name );
1217     if( r != ERROR_SUCCESS )
1218     {
1219         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
1220         return ERROR_INVALID_PARAMETER;
1221     }
1222
1223     r = MSI_IterateRecords( view, 0, msi_dialog_create_controls, dialog );
1224     msiobj_release( &view->hdr );
1225
1226     return r;
1227 }
1228
1229 static UINT msi_dialog_set_control_condition( MSIRECORD *rec, LPVOID param )
1230 {
1231     static const WCHAR szHide[] = { 'H','i','d','e',0 };
1232     static const WCHAR szShow[] = { 'S','h','o','w',0 };
1233     static const WCHAR szDisable[] = { 'D','i','s','a','b','l','e',0 };
1234     static const WCHAR szEnable[] = { 'E','n','a','b','l','e',0 };
1235     msi_dialog *dialog = param;
1236     msi_control *control;
1237     LPCWSTR name, action, condition;
1238     UINT r;
1239
1240     name = MSI_RecordGetString( rec, 2 );
1241     action = MSI_RecordGetString( rec, 3 );
1242     condition = MSI_RecordGetString( rec, 4 );
1243     r = MSI_EvaluateConditionW( dialog->package, condition );
1244     control = msi_dialog_find_control( dialog, name );
1245     if( r && control )
1246     {
1247         TRACE("%s control %s\n", debugstr_w(action), debugstr_w(name));
1248
1249         /* FIXME: case sensitive? */
1250         if(!lstrcmpW(action, szHide))
1251             ShowWindow(control->hwnd, SW_HIDE);
1252         else if(!strcmpW(action, szShow))
1253             ShowWindow(control->hwnd, SW_SHOW);
1254         else if(!strcmpW(action, szDisable))
1255             EnableWindow(control->hwnd, FALSE);
1256         else if(!strcmpW(action, szEnable))
1257             EnableWindow(control->hwnd, TRUE);
1258         else
1259             FIXME("Unhandled action %s\n", debugstr_w(action));
1260     }
1261
1262     return ERROR_SUCCESS;
1263 }
1264
1265 static UINT msi_dialog_evaluate_control_conditions( msi_dialog *dialog )
1266 {
1267     static const WCHAR query[] = {
1268       'S','E','L','E','C','T',' ','*',' ',
1269       'F','R','O','M',' ',
1270         'C','o','n','t','r','o','l','C','o','n','d','i','t','i','o','n',' ',
1271       'W','H','E','R','E',' ',
1272         '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',0
1273     };
1274     UINT r;
1275     MSIQUERY *view = NULL;
1276     MSIPACKAGE *package = dialog->package;
1277
1278     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
1279
1280     /* query the Control table for all the elements of the control */
1281     r = MSI_OpenQuery( package->db, &view, query, dialog->name );
1282     if( r != ERROR_SUCCESS )
1283     {
1284         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
1285         return ERROR_INVALID_PARAMETER;
1286     }
1287
1288     r = MSI_IterateRecords( view, 0, msi_dialog_set_control_condition, dialog );
1289     msiobj_release( &view->hdr );
1290
1291     return r;
1292 }
1293
1294 /* figure out the height of 10 point MS Sans Serif */
1295 static INT msi_dialog_get_sans_serif_height( HWND hwnd )
1296 {
1297     static const WCHAR szSansSerif[] = {
1298         'M','S',' ','S','a','n','s',' ','S','e','r','i','f',0 };
1299     LOGFONTW lf;
1300     TEXTMETRICW tm;
1301     BOOL r;
1302     LONG height = 0;
1303     HFONT hFont, hOldFont;
1304     HDC hdc;
1305
1306     hdc = GetDC( hwnd );
1307     if (hdc)
1308     {
1309         memset( &lf, 0, sizeof lf );
1310         lf.lfHeight = MulDiv(10, GetDeviceCaps(hdc, LOGPIXELSY), 72);
1311         strcpyW( lf.lfFaceName, szSansSerif );
1312         hFont = CreateFontIndirectW(&lf);
1313         if (hFont)
1314         {
1315             hOldFont = SelectObject( hdc, hFont );
1316             r = GetTextMetricsW( hdc, &tm );
1317             if (r)
1318                 height = tm.tmHeight;
1319             SelectObject( hdc, hOldFont );
1320             DeleteObject( hFont );
1321         }
1322         ReleaseDC( hwnd, hdc );
1323     }
1324     return height;
1325 }
1326
1327 /* fetch the associated record from the Dialog table */
1328 static MSIRECORD *msi_get_dialog_record( msi_dialog *dialog )
1329 {
1330     static const WCHAR query[] = {
1331         'S','E','L','E','C','T',' ','*',' ',
1332         'F','R','O','M',' ','D','i','a','l','o','g',' ',
1333         'W','H','E','R','E',' ',
1334            '`','D','i','a','l','o','g','`',' ','=',' ','\'','%','s','\'',0};
1335     MSIPACKAGE *package = dialog->package;
1336     MSIRECORD *rec = NULL;
1337
1338     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
1339
1340     rec = MSI_QueryGetRecord( package->db, query, dialog->name );
1341     if( !rec )
1342         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
1343
1344     return rec;
1345 }
1346
1347 static void msi_dialog_adjust_dialog_size( msi_dialog *dialog, LPSIZE sz )
1348 {
1349     RECT rect;
1350     LONG style;
1351
1352     /* turn the client size into the window rectangle */
1353     rect.left = 0;
1354     rect.top = 0;
1355     rect.right = msi_dialog_scale_unit( dialog, sz->cx );
1356     rect.bottom = msi_dialog_scale_unit( dialog, sz->cy );
1357     style = GetWindowLongPtrW( dialog->hwnd, GWL_STYLE );
1358     AdjustWindowRect( &rect, style, FALSE );
1359     sz->cx = rect.right - rect.left;
1360     sz->cy = rect.bottom - rect.top;
1361 }
1362
1363 static BOOL msi_control_set_next( msi_control *control, msi_control *next )
1364 {
1365     return SetWindowPos( next->hwnd, control->hwnd, 0, 0, 0, 0,
1366                          SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOREDRAW |
1367                          SWP_NOREPOSITION | SWP_NOSENDCHANGING | SWP_NOSIZE );
1368 }
1369
1370 static UINT msi_dialog_set_tab_order( msi_dialog *dialog )
1371 {
1372     msi_control *control, *tab_next;
1373
1374     for( control = dialog->control_list; control; control = control->next )
1375     {
1376         tab_next = msi_dialog_find_control( dialog, control->tabnext );
1377         if( !tab_next )
1378             continue;
1379         msi_control_set_next( control, tab_next );
1380     }
1381
1382     return ERROR_SUCCESS;
1383 }
1384
1385 static void msi_dialog_set_first_control( msi_dialog* dialog, LPCWSTR name )
1386 {
1387     msi_control *control;
1388
1389     control = msi_dialog_find_control( dialog, name );
1390     if( control )
1391         dialog->hWndFocus = control->hwnd;
1392     else
1393         dialog->hWndFocus = NULL;
1394 }
1395
1396 static LRESULT msi_dialog_oncreate( HWND hwnd, LPCREATESTRUCTW cs )
1397 {
1398     static const WCHAR df[] = {
1399         'D','e','f','a','u','l','t','U','I','F','o','n','t',0 };
1400     msi_dialog *dialog = (msi_dialog*) cs->lpCreateParams;
1401     MSIRECORD *rec = NULL;
1402     LPCWSTR text;
1403     LPWSTR title = NULL;
1404     SIZE size;
1405
1406     TRACE("%p %p\n", dialog, dialog->package);
1407
1408     dialog->hwnd = hwnd;
1409     SetWindowLongPtrW( hwnd, GWLP_USERDATA, (LONG_PTR) dialog );
1410
1411     rec = msi_get_dialog_record( dialog );
1412     if( !rec )
1413     {
1414         TRACE("No record found for dialog %s\n", debugstr_w(dialog->name));
1415         return -1;
1416     }
1417
1418     dialog->scale = msi_dialog_get_sans_serif_height(dialog->hwnd);
1419
1420     size.cx = MSI_RecordGetInteger( rec, 4 );
1421     size.cy = MSI_RecordGetInteger( rec, 5 );
1422     msi_dialog_adjust_dialog_size( dialog, &size );
1423
1424     dialog->attributes = MSI_RecordGetInteger( rec, 6 );
1425     text = MSI_RecordGetString( rec, 7 );
1426
1427     dialog->default_font = load_dynamic_property( dialog->package, df, NULL );
1428
1429     deformat_string( dialog->package, text, &title );
1430     SetWindowTextW( hwnd, title );
1431     SetWindowPos( hwnd, 0, 0, 0, size.cx, size.cy,
1432                   SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOREDRAW );
1433
1434     HeapFree( GetProcessHeap(), 0, title );
1435
1436     msi_dialog_build_font_list( dialog );
1437     msi_dialog_fill_controls( dialog );
1438     msi_dialog_evaluate_control_conditions( dialog );
1439     msi_dialog_set_tab_order( dialog );
1440     msi_dialog_set_first_control( dialog, MSI_RecordGetString( rec, 8 ) );
1441     msiobj_release( &rec->hdr );
1442
1443     return 0;
1444 }
1445
1446 static UINT msi_dialog_send_event( msi_dialog *dialog, LPCWSTR event, LPCWSTR arg )
1447 {
1448     LPWSTR event_fmt = NULL, arg_fmt = NULL;
1449
1450     TRACE("Sending control event %s %s\n", debugstr_w(event), debugstr_w(arg));
1451
1452     deformat_string( dialog->package, event, &event_fmt );
1453     deformat_string( dialog->package, arg, &arg_fmt );
1454
1455     dialog->event_handler( dialog->package, event_fmt, arg_fmt, dialog );
1456
1457     HeapFree( GetProcessHeap(), 0, event_fmt );
1458     HeapFree( GetProcessHeap(), 0, arg_fmt );
1459
1460     return ERROR_SUCCESS;
1461 }
1462
1463 static UINT msi_dialog_set_property( msi_dialog *dialog, LPCWSTR event, LPCWSTR arg )
1464 {
1465     static const WCHAR szNullArg[] = { '{','}',0 };
1466     LPWSTR p, prop, arg_fmt = NULL;
1467     UINT len;
1468
1469     len = strlenW(event);
1470     prop = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR));
1471     strcpyW( prop, &event[1] );
1472     p = strchrW( prop, ']' );
1473     if( p && p[1] == 0 )
1474     {
1475         *p = 0;
1476         if( strcmpW( szNullArg, arg ) )
1477             deformat_string( dialog->package, arg, &arg_fmt );
1478         MSI_SetPropertyW( dialog->package, prop, arg_fmt );
1479     }
1480     else
1481         ERR("Badly formatted property string - what happens?\n");
1482     HeapFree( GetProcessHeap(), 0, prop );
1483     return ERROR_SUCCESS;
1484 }
1485
1486 static UINT msi_dialog_control_event( MSIRECORD *rec, LPVOID param )
1487 {
1488     msi_dialog *dialog = param;
1489     LPCWSTR condition, event, arg;
1490     UINT r;
1491
1492     condition = MSI_RecordGetString( rec, 5 );
1493     r = MSI_EvaluateConditionW( dialog->package, condition );
1494     if( r )
1495     {
1496         event = MSI_RecordGetString( rec, 3 );
1497         arg = MSI_RecordGetString( rec, 4 );
1498         if( event[0] == '[' )
1499             msi_dialog_set_property( dialog, event, arg );
1500         else
1501             msi_dialog_send_event( dialog, event, arg );
1502     }
1503
1504     return ERROR_SUCCESS;
1505 }
1506
1507 static UINT msi_dialog_button_handler( msi_dialog *dialog,
1508                                        msi_control *control, WPARAM param )
1509 {
1510     static const WCHAR query[] = {
1511       'S','E','L','E','C','T',' ','*',' ',
1512       'F','R','O','M',' ','C','o','n','t','r','o','l','E','v','e','n','t',' ',
1513       'W','H','E','R','E',' ',
1514          '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',' ',
1515       'A','N','D',' ',
1516          '`','C','o','n','t','r','o','l','_','`',' ','=',' ','\'','%','s','\'',' ',
1517       'O','R','D','E','R',' ','B','Y',' ','`','O','r','d','e','r','i','n','g','`',0
1518     };
1519     MSIQUERY *view = NULL;
1520     UINT r;
1521
1522     if( HIWORD(param) != BN_CLICKED )
1523         return ERROR_SUCCESS;
1524
1525     r = MSI_OpenQuery( dialog->package->db, &view, query,
1526                        dialog->name, control->name );
1527     if( r != ERROR_SUCCESS )
1528     {
1529         ERR("query failed\n");
1530         return 0;
1531     }
1532
1533     r = MSI_IterateRecords( view, 0, msi_dialog_control_event, dialog );
1534     msiobj_release( &view->hdr );
1535
1536     return r;
1537 }
1538
1539 static UINT msi_dialog_get_checkbox_state( msi_dialog *dialog,
1540                 msi_control *control )
1541 {
1542     WCHAR state[2] = { 0 };
1543     DWORD sz = 2;
1544
1545     MSI_GetPropertyW( dialog->package, control->property, state, &sz );
1546     return state[0] ? 1 : 0;
1547 }
1548
1549 static void msi_dialog_set_checkbox_state( msi_dialog *dialog,
1550                 msi_control *control, UINT state )
1551 {
1552     static const WCHAR szState[] = { '1', 0 };
1553     LPCWSTR val;
1554
1555     /* if uncheck then the property is set to NULL */
1556     if (!state)
1557     {
1558         MSI_SetPropertyW( dialog->package, control->property, NULL );
1559         return;
1560     }
1561
1562     /* check for a custom state */
1563     if (control->value && control->value[0])
1564         val = control->value;
1565     else
1566         val = szState;
1567
1568     MSI_SetPropertyW( dialog->package, control->property, val );
1569 }
1570
1571 static void msi_dialog_checkbox_sync_state( msi_dialog *dialog,
1572                 msi_control *control )
1573 {
1574     UINT state;
1575
1576     state = msi_dialog_get_checkbox_state( dialog, control );
1577     SendMessageW( control->hwnd, BM_SETCHECK,
1578                   state ? BST_CHECKED : BST_UNCHECKED, 0 );
1579 }
1580
1581 static UINT msi_dialog_checkbox_handler( msi_dialog *dialog,
1582                 msi_control *control, WPARAM param )
1583 {
1584     UINT state;
1585
1586     if( HIWORD(param) != BN_CLICKED )
1587         return ERROR_SUCCESS;
1588
1589     TRACE("clicked checkbox %s, set %s\n", debugstr_w(control->name),
1590           debugstr_w(control->property));
1591
1592     state = msi_dialog_get_checkbox_state( dialog, control );
1593     state = state ? 0 : 1;
1594     msi_dialog_set_checkbox_state( dialog, control, state );
1595     msi_dialog_checkbox_sync_state( dialog, control );
1596
1597     return msi_dialog_button_handler( dialog, control, param );
1598 }
1599
1600 static UINT msi_dialog_edit_handler( msi_dialog *dialog,
1601                 msi_control *control, WPARAM param )
1602 {
1603     UINT sz, r;
1604     LPWSTR buf;
1605
1606     if( HIWORD(param) != EN_CHANGE )
1607         return ERROR_SUCCESS;
1608
1609     TRACE("edit %s contents changed, set %s\n", debugstr_w(control->name),
1610           debugstr_w(control->property));
1611
1612     sz = 0x20;
1613     buf = HeapAlloc( GetProcessHeap(), 0, sz*sizeof(WCHAR) );
1614     while( buf )
1615     {
1616         r = GetWindowTextW( control->hwnd, buf, sz );
1617         if( r < (sz-1) )
1618             break;
1619             sz *= 2;
1620         buf = HeapReAlloc( GetProcessHeap(), 0, buf, sz*sizeof(WCHAR) );
1621     }
1622
1623     MSI_SetPropertyW( dialog->package, control->property, buf );
1624
1625     HeapFree( GetProcessHeap(), 0, buf );
1626
1627     return ERROR_SUCCESS;
1628 }
1629
1630 static UINT msi_dialog_radiogroup_handler( msi_dialog *dialog,
1631                 msi_control *control, WPARAM param )
1632 {
1633     if( HIWORD(param) != BN_CLICKED )
1634         return ERROR_SUCCESS;
1635
1636     TRACE("clicked radio button %s, set %s\n", debugstr_w(control->name),
1637           debugstr_w(control->property));
1638
1639     MSI_SetPropertyW( dialog->package, control->property, control->name );
1640
1641     return msi_dialog_button_handler( dialog, control, param );
1642 }
1643
1644 static LRESULT msi_dialog_oncommand( msi_dialog *dialog, WPARAM param, HWND hwnd )
1645 {
1646     msi_control *control;
1647
1648     TRACE("%p %p %08x\n", dialog, hwnd, param);
1649
1650     control = msi_dialog_find_control_by_hwnd( dialog, hwnd );
1651     if( control )
1652     {
1653         if( control->handler )
1654         {
1655             control->handler( dialog, control, param );
1656             msi_dialog_evaluate_control_conditions( dialog );
1657         }
1658     }
1659     else
1660         ERR("button click from nowhere\n");
1661     return 0;
1662 }
1663
1664 static void msi_dialog_setfocus( msi_dialog *dialog )
1665 {
1666     HWND hwnd = dialog->hWndFocus;
1667
1668     hwnd = GetNextDlgTabItem( dialog->hwnd, hwnd, TRUE);
1669     hwnd = GetNextDlgTabItem( dialog->hwnd, hwnd, FALSE);
1670     SetFocus( hwnd );
1671     dialog->hWndFocus = hwnd;
1672 }
1673
1674 static LRESULT WINAPI MSIDialog_WndProc( HWND hwnd, UINT msg,
1675                 WPARAM wParam, LPARAM lParam )
1676 {
1677     msi_dialog *dialog = (LPVOID) GetWindowLongPtrW( hwnd, GWLP_USERDATA );
1678
1679     TRACE("0x%04x\n", msg);
1680
1681     switch (msg)
1682     {
1683     case WM_CREATE:
1684         return msi_dialog_oncreate( hwnd, (LPCREATESTRUCTW)lParam );
1685
1686     case WM_COMMAND:
1687         return msi_dialog_oncommand( dialog, wParam, (HWND)lParam );
1688
1689     case WM_ACTIVATE:
1690         if( LOWORD(wParam) == WA_INACTIVE )
1691             dialog->hWndFocus = GetFocus();
1692         else
1693             msi_dialog_setfocus( dialog );
1694         return 0;
1695
1696     case WM_SETFOCUS:
1697         msi_dialog_setfocus( dialog );
1698         return 0;
1699
1700     /* bounce back to our subclassed static control */
1701     case WM_CTLCOLORSTATIC:
1702         return SendMessageW( (HWND) lParam, WM_CTLCOLORSTATIC, wParam, lParam );
1703
1704     case WM_DESTROY:
1705         dialog->hwnd = NULL;
1706         return 0;
1707     }
1708     return DefWindowProcW(hwnd, msg, wParam, lParam);
1709 }
1710
1711 static LRESULT WINAPI MSIRadioGroup_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1712 {
1713     WNDPROC oldproc = (WNDPROC) GetPropW(hWnd, szButtonData);
1714
1715     TRACE("hWnd %p msg %04x wParam 0x%08x lParam 0x%08lx\n", hWnd, msg, wParam, lParam);
1716
1717     if (msg == WM_COMMAND) /* Forward notifications to dialog */
1718         SendMessageW(GetParent(hWnd), msg, wParam, lParam);
1719
1720     return CallWindowProcW(oldproc, hWnd, msg, wParam, lParam);
1721 }
1722
1723 static LRESULT WINAPI MSIHiddenWindowProc( HWND hwnd, UINT msg,
1724                 WPARAM wParam, LPARAM lParam )
1725 {
1726     msi_dialog *dialog = (msi_dialog*) lParam;
1727
1728     TRACE("%d %p\n", msg, dialog);
1729
1730     switch (msg)
1731     {
1732     case WM_MSI_DIALOG_CREATE:
1733         return msi_dialog_run_message_loop( dialog );
1734     case WM_MSI_DIALOG_DESTROY:
1735         msi_dialog_destroy( dialog );
1736         return 0;
1737     }
1738     return DefWindowProcW( hwnd, msg, wParam, lParam );
1739 }
1740
1741 /* functions that interface to other modules within MSI */
1742
1743 msi_dialog *msi_dialog_create( MSIPACKAGE* package, LPCWSTR szDialogName,
1744                                 msi_dialog_event_handler event_handler )
1745 {
1746     MSIRECORD *rec = NULL;
1747     msi_dialog *dialog;
1748
1749     TRACE("%p %s\n", package, debugstr_w(szDialogName));
1750
1751     /* allocate the structure for the dialog to use */
1752     dialog = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
1753                         sizeof *dialog + sizeof(WCHAR)*strlenW(szDialogName) );
1754     if( !dialog )
1755         return NULL;
1756     strcpyW( dialog->name, szDialogName );
1757     msiobj_addref( &package->hdr );
1758     dialog->package = package;
1759     dialog->event_handler = event_handler;
1760     dialog->finished = 0;
1761
1762     /* verify that the dialog exists */
1763     rec = msi_get_dialog_record( dialog );
1764     if( !rec )
1765     {
1766         HeapFree( GetProcessHeap(), 0, dialog );
1767         return NULL;
1768     }
1769     dialog->attributes = MSI_RecordGetInteger( rec, 6 );
1770     msiobj_release( &rec->hdr );
1771
1772     return dialog;
1773 }
1774
1775 static void msi_process_pending_messages( HWND hdlg )
1776 {
1777     MSG msg;
1778
1779     while( PeekMessageW( &msg, 0, 0, 0, PM_REMOVE ) )
1780     {
1781         if( hdlg && IsDialogMessageW( hdlg, &msg ))
1782             continue;
1783         TranslateMessage( &msg );
1784         DispatchMessageW( &msg );
1785     }
1786 }
1787
1788 void msi_dialog_end_dialog( msi_dialog *dialog )
1789 {
1790     TRACE("%p\n", dialog);
1791     dialog->finished = 1;
1792     PostMessageW(dialog->hwnd, WM_NULL, 0, 0);
1793 }
1794
1795 void msi_dialog_check_messages( HANDLE handle )
1796 {
1797     DWORD r;
1798
1799     /* in threads other than the UI thread, block */
1800     if( uiThreadId != GetCurrentThreadId() )
1801     {
1802         if( handle )
1803             WaitForSingleObject( handle, INFINITE );
1804         return;
1805     }
1806
1807     /* there's two choices for the UI thread */
1808     while (1)
1809     {
1810         msi_process_pending_messages( NULL );
1811
1812         if( !handle )
1813             break;
1814
1815         /*
1816          * block here until somebody creates a new dialog or
1817          * the handle we're waiting on becomes ready
1818          */
1819         r = MsgWaitForMultipleObjects( 1, &handle, 0, INFINITE, QS_ALLINPUT );
1820         if( r == WAIT_OBJECT_0 )
1821             break;
1822     }
1823 }
1824
1825 UINT msi_dialog_run_message_loop( msi_dialog *dialog )
1826 {
1827     HWND hwnd;
1828
1829     if( !(dialog->attributes & msidbDialogAttributesVisible) )
1830         return ERROR_SUCCESS;
1831
1832     if( uiThreadId != GetCurrentThreadId() )
1833         return SendMessageW( hMsiHiddenWindow, WM_MSI_DIALOG_CREATE, 0, (LPARAM) dialog );
1834
1835     /* create the dialog window, don't show it yet */
1836     hwnd = CreateWindowW( szMsiDialogClass, dialog->name, WS_OVERLAPPEDWINDOW,
1837                      CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
1838                      NULL, NULL, NULL, dialog );
1839     if( !hwnd )
1840     {
1841         ERR("Failed to create dialog %s\n", debugstr_w( dialog->name ));
1842         return ERROR_FUNCTION_FAILED;
1843     }
1844
1845     ShowWindow( hwnd, SW_SHOW );
1846     UpdateWindow( hwnd );
1847
1848     if( dialog->attributes & msidbDialogAttributesModal )
1849     {
1850         while( !dialog->finished )
1851         {
1852             MsgWaitForMultipleObjects( 0, NULL, 0, INFINITE, QS_ALLEVENTS );
1853             msi_process_pending_messages( dialog->hwnd );
1854         }
1855     }
1856     else
1857         return ERROR_IO_PENDING;
1858
1859     return ERROR_SUCCESS;
1860 }
1861
1862 void msi_dialog_do_preview( msi_dialog *dialog )
1863 {
1864     TRACE("\n");
1865     dialog->attributes |= msidbDialogAttributesVisible;
1866     dialog->attributes &= ~msidbDialogAttributesModal;
1867     msi_dialog_run_message_loop( dialog );
1868 }
1869
1870 void msi_dialog_destroy( msi_dialog *dialog )
1871 {
1872     if( uiThreadId != GetCurrentThreadId() )
1873     {
1874         SendMessageW( hMsiHiddenWindow, WM_MSI_DIALOG_DESTROY, 0, (LPARAM) dialog );
1875         return;
1876     }
1877
1878     if( dialog->hwnd )
1879         ShowWindow( dialog->hwnd, SW_HIDE );
1880
1881     /* destroy the list of controls */
1882     while( dialog->control_list )
1883     {
1884         msi_control *t = dialog->control_list;
1885         dialog->control_list = t->next;
1886         /* leave dialog->hwnd - destroying parent destroys child windows */
1887         HeapFree( GetProcessHeap(), 0, t->property );
1888         HeapFree( GetProcessHeap(), 0, t->value );
1889         if( t->hBitmap )
1890             DeleteObject( t->hBitmap );
1891         if( t->hIcon )
1892             DestroyIcon( t->hIcon );
1893         HeapFree( GetProcessHeap(), 0, t->tabnext );
1894         HeapFree( GetProcessHeap(), 0, t );
1895     }
1896
1897     /* destroy the list of fonts */
1898     while( dialog->font_list )
1899     {
1900         msi_font *t = dialog->font_list;
1901         dialog->font_list = t->next;
1902         DeleteObject( t->hfont );
1903         HeapFree( GetProcessHeap(), 0, t );
1904     }
1905     HeapFree( GetProcessHeap(), 0, dialog->default_font );
1906
1907     if( dialog->hwnd )
1908         DestroyWindow( dialog->hwnd );
1909
1910     msiobj_release( &dialog->package->hdr );
1911     dialog->package = NULL;
1912     HeapFree( GetProcessHeap(), 0, dialog );
1913 }
1914
1915 BOOL msi_dialog_register_class( void )
1916 {
1917     WNDCLASSW cls;
1918
1919     ZeroMemory( &cls, sizeof cls );
1920     cls.lpfnWndProc   = MSIDialog_WndProc;
1921     cls.hInstance     = NULL;
1922     cls.hIcon         = LoadIconW(0, (LPWSTR)IDI_APPLICATION);
1923     cls.hCursor       = LoadCursorW(0, (LPWSTR)IDC_ARROW);
1924     cls.hbrBackground = (HBRUSH)(COLOR_WINDOW);
1925     cls.lpszMenuName  = NULL;
1926     cls.lpszClassName = szMsiDialogClass;
1927
1928     if( !RegisterClassW( &cls ) )
1929         return FALSE;
1930
1931     cls.lpfnWndProc   = MSIHiddenWindowProc;
1932     cls.lpszClassName = szMsiHiddenWindow;
1933
1934     if( !RegisterClassW( &cls ) )
1935         return FALSE;
1936
1937     uiThreadId = GetCurrentThreadId();
1938
1939     hMsiHiddenWindow = CreateWindowW( szMsiHiddenWindow, NULL, WS_OVERLAPPED,
1940                                    0, 0, 100, 100, NULL, NULL, NULL, NULL );
1941     if( !hMsiHiddenWindow )
1942         return FALSE;
1943
1944     hRichedit = LoadLibraryA("riched20");
1945
1946     return TRUE;
1947 }
1948
1949 void msi_dialog_unregister_class( void )
1950 {
1951     DestroyWindow( hMsiHiddenWindow );
1952     UnregisterClassW( szMsiDialogClass, NULL );
1953     uiThreadId = 0;
1954     FreeLibrary( hRichedit );
1955 }