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
  36 #include "wine/debug.h"
  37 #include "wine/unicode.h"
  38
  39 #include "action.h"
  40
  41 WINE_DEFAULT_DEBUG_CHANNEL(msi);
  42
  43
  44 const WCHAR szMsiDialogClass[] = {
  45     'M','s','i','D','i','a','l','o','g','C','l','o','s','e','C','l','a','s','s',0
  46 };
  47 const WCHAR szMsiHiddenWindow[] = {
  48     'M','s','i','H','i','d','d','e','n','W','i','n','d','o','w',0
  49 };
  50 const static WCHAR szStatic[] = { 'S','t','a','t','i','c',0 };
  51 const static WCHAR szButton[] = { 'B','U','T','T','O','N', 0 };
  52
  53 const static WCHAR szButtonData[] = { 'M','S','I','D','A','T','A',0 };
  54
  55 struct msi_control_tag;
  56 typedef struct msi_control_tag msi_control;
  57 typedef UINT (*msi_handler)( msi_dialog *, msi_control *, WPARAM );
  58
  59 struct msi_control_tag
  60 {
  61     struct msi_control_tag *next;
  62     HWND hwnd;
  63     msi_handler handler;
  64     LPWSTR property;
  65     LPWSTR value;
  66     IPicture *pic;
  67     WCHAR name[1];
  68 };
  69
  70 typedef struct msi_font_tag
  71 {
  72     struct msi_font_tag *next;
  73     HFONT hfont;
  74     WCHAR name[1];
  75 } msi_font;
  76
  77 struct msi_dialog_tag
  78 {
  79     MSIPACKAGE *package;
  80     msi_dialog_event_handler event_handler;
  81     BOOL finished;
  82     INT scale;
  83     DWORD attributes;
  84     HWND hwnd;
  85     LPWSTR default_font;
  86     msi_font *font_list;
  87     msi_control *control_list;
  88     WCHAR name[1];
  89 };
  90
  91 typedef UINT (*msi_dialog_control_func)( msi_dialog *dialog, MSIRECORD *rec );
  92 struct control_handler
  93 {
  94     LPCWSTR control_type;
  95     msi_dialog_control_func func;
  96 };
  97
  98 typedef struct
  99 {
 100     msi_dialog* dialog;
 101     msi_control *parent;
 102     DWORD       attributes;
 103 } radio_button_group_descr;
 104
 105 static UINT msi_dialog_checkbox_handler( msi_dialog *, msi_control *, WPARAM );
 106 static void msi_dialog_checkbox_sync_state( msi_dialog *, msi_control * );
 107 static UINT msi_dialog_button_handler( msi_dialog *, msi_control *, WPARAM );
 108 static UINT msi_dialog_edit_handler( msi_dialog *, msi_control *, WPARAM );
 109 static UINT msi_dialog_radiogroup_handler( msi_dialog *, msi_control *, WPARAM param );
 110 static LRESULT WINAPI MSIRadioGroup_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
 111
 112
 113 /* dialog sequencing */
 114
 115 #define WM_MSI_DIALOG_CREATE  (WM_USER+0x100)
 116 #define WM_MSI_DIALOG_DESTROY (WM_USER+0x101)
 117
 118 static DWORD uiThreadId;
 119 static HWND hMsiHiddenWindow;
 120
 121 static INT msi_dialog_scale_unit( msi_dialog *dialog, INT val )
 122 {
 123     return (dialog->scale * val + 5) / 10;
 124 }
 125
 126 /*
 127  * msi_dialog_get_style
 128  *
 129  * Extract the {\style} string from the front of the text to display and
 130  *  update the pointer.
 131  */
 132 static LPWSTR msi_dialog_get_style( LPCWSTR *text )
 133 {
 134     LPWSTR ret = NULL;
 135     LPCWSTR p = *text, q;
 136     DWORD len;
 137
 138     if( *p++ != '{' )
 139         return ret;
 140     q = strchrW( p, '}' );
 141     if( !q )
 142         return ret;
 143     *text = ++q;
 144     if( *p++ != '\\' )
 145         return ret;
 146     len = q - p;
 147
 148     ret = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR) );
 149     if( !ret )
 150         return ret;
 151     memcpy( ret, p, len*sizeof(WCHAR) );
 152     ret[len-1] = 0;
 153     return ret;
 154 }
 155
 156 static UINT msi_dialog_add_font( MSIRECORD *rec, LPVOID param )
 157 {
 158     msi_dialog *dialog = param;
 159     msi_font *font;
 160     LPCWSTR face, name;
 161     LOGFONTW lf;
 162     INT style;
 163     HDC hdc;
 164
 165     /* create a font and add it to the list */
 166     name = MSI_RecordGetString( rec, 1 );
 167     font = HeapAlloc( GetProcessHeap(), 0,
 168                       sizeof *font + strlenW( name )*sizeof (WCHAR) );
 169     strcpyW( font->name, name );
 170     font->next = dialog->font_list;
 171     dialog->font_list = font;
 172
 173     memset( &lf, 0, sizeof lf );
 174     face = MSI_RecordGetString( rec, 2 );
 175     lf.lfHeight = MSI_RecordGetInteger( rec, 3 );
 176     style = MSI_RecordGetInteger( rec, 5 );
 177     if( style & msidbTextStyleStyleBitsBold )
 178         lf.lfWeight = FW_BOLD;
 179     if( style & msidbTextStyleStyleBitsItalic )
 180         lf.lfItalic = TRUE;
 181     if( style & msidbTextStyleStyleBitsUnderline )
 182         lf.lfUnderline = TRUE;
 183     if( style & msidbTextStyleStyleBitsStrike )
 184         lf.lfStrikeOut = TRUE;
 185     lstrcpynW( lf.lfFaceName, face, LF_FACESIZE );
 186
 187     /* adjust the height */
 188     hdc = GetDC( dialog->hwnd );
 189     if (hdc)
 190     {
 191         lf.lfHeight = -MulDiv(lf.lfHeight, GetDeviceCaps(hdc, LOGPIXELSY), 72);
 192         ReleaseDC( dialog->hwnd, hdc );
 193     }
 194
 195     font->hfont = CreateFontIndirectW( &lf );
 196
 197     TRACE("Adding font style %s\n", debugstr_w(font->name) );
 198
 199     return ERROR_SUCCESS;
 200 }
 201
 202 static msi_font *msi_dialog_find_font( msi_dialog *dialog, LPCWSTR name )
 203 {
 204     msi_font *font;
 205
 206     for( font = dialog->font_list; font; font = font->next )
 207         if( !strcmpW( font->name, name ) )  /* FIXME: case sensitive? */
 208             break;
 209
 210     return font;
 211 }
 212
 213 static UINT msi_dialog_set_font( msi_dialog *dialog, HWND hwnd, LPCWSTR name )
 214 {
 215     msi_font *font;
 216
 217     font = msi_dialog_find_font( dialog, name );
 218     if( font )
 219         SendMessageW( hwnd, WM_SETFONT, (WPARAM) font->hfont, TRUE );
 220     else
 221         ERR("No font entry for %s\n", debugstr_w(name));
 222     return ERROR_SUCCESS;
 223 }
 224
 225 static UINT msi_dialog_build_font_list( msi_dialog *dialog )
 226 {
 227     static const WCHAR query[] = {
 228       'S','E','L','E','C','T',' ','*',' ',
 229       'F','R','O','M',' ','`','T','e','x','t','S','t','y','l','e','`',' ',0
 230     };
 231     UINT r;
 232     MSIQUERY *view = NULL;
 233
 234     TRACE("dialog %p\n", dialog );
 235
 236     r = MSI_OpenQuery( dialog->package->db, &view, query );
 237     if( r != ERROR_SUCCESS )
 238         return r;
 239
 240     r = MSI_IterateRecords( view, NULL, msi_dialog_add_font, dialog );
 241     msiobj_release( &view->hdr );
 242
 243     return r;
 244 }
 245
 246 static msi_control *msi_dialog_create_window( msi_dialog *dialog,
 247                 MSIRECORD *rec, LPCWSTR szCls, LPCWSTR name, LPCWSTR text,
 248                 DWORD style, HWND parent )
 249 {
 250     DWORD x, y, width, height;
 251     LPWSTR font = NULL, title = NULL;
 252     msi_control *control;
 253
 254     style |= WS_CHILD | WS_GROUP;
 255
 256     control = HeapAlloc( GetProcessHeap(), 0,
 257                          sizeof *control + strlenW(name)*sizeof(WCHAR) );
 258     strcpyW( control->name, name );
 259     control->next = dialog->control_list;
 260     dialog->control_list = control;
 261     control->handler = NULL;
 262     control->property = NULL;
 263     control->value = NULL;
 264     control->pic = NULL;
 265
 266     x = MSI_RecordGetInteger( rec, 4 );
 267     y = MSI_RecordGetInteger( rec, 5 );
 268     width = MSI_RecordGetInteger( rec, 6 );
 269     height = MSI_RecordGetInteger( rec, 7 );
 270
 271     x = msi_dialog_scale_unit( dialog, x );
 272     y = msi_dialog_scale_unit( dialog, y );
 273     width = msi_dialog_scale_unit( dialog, width );
 274     height = msi_dialog_scale_unit( dialog, height );
 275
 276     if( text )
 277     {
 278         font = msi_dialog_get_style( &text );
 279         deformat_string( dialog->package, text, &title );
 280     }
 281
 282     control->hwnd = CreateWindowW( szCls, title, style,
 283                           x, y, width, height, parent, NULL, NULL, NULL );
 284
 285     TRACE("Dialog %s control %s hwnd %p\n",
 286            debugstr_w(dialog->name), debugstr_w(text), control->hwnd );
 287
 288     msi_dialog_set_font( dialog, control->hwnd,
 289                          font ? font : dialog->default_font );
 290
 291     HeapFree( GetProcessHeap(), 0, font );
 292     HeapFree( GetProcessHeap(), 0, title );
 293
 294     return control;
 295 }
 296
 297 /* everything except radio buttons */
 298 static msi_control *msi_dialog_add_control( msi_dialog *dialog,
 299                 MSIRECORD *rec, LPCWSTR szCls, DWORD style )
 300 {
 301     DWORD attributes;
 302     LPCWSTR text, name;
 303
 304     name = MSI_RecordGetString( rec, 2 );
 305     attributes = MSI_RecordGetInteger( rec, 8 );
 306     text = MSI_RecordGetString( rec, 10 );
 307     if( attributes & 1 )
 308         style |= WS_VISIBLE;
 309     if( ~attributes & 2 )
 310         style |= WS_DISABLED;
 311     return msi_dialog_create_window( dialog, rec, szCls, name, text,
 312                                      style, dialog->hwnd );
 313 }
 314
 315 static UINT msi_dialog_text_control( msi_dialog *dialog, MSIRECORD *rec )
 316 {
 317     TRACE("%p %p\n", dialog, rec);
 318
 319     msi_dialog_add_control( dialog, rec, szStatic, 0 );
 320     return ERROR_SUCCESS;
 321 }
 322
 323 static UINT msi_dialog_button_control( msi_dialog *dialog, MSIRECORD *rec )
 324 {
 325     msi_control *control;
 326
 327     TRACE("%p %p\n", dialog, rec);
 328
 329     control = msi_dialog_add_control( dialog, rec, szButton, 0 );
 330     control->handler = msi_dialog_button_handler;
 331
 332     return ERROR_SUCCESS;
 333 }
 334
 335 static LPWSTR msi_get_checkbox_value( msi_dialog *dialog, LPCWSTR prop )
 336 {
 337     const static WCHAR query[] = {
 338         'S','E','L','E','C','T',' ','*',' ',
 339         'F','R','O','M',' ','`','C','h','e','c','k','B','o','x',' ','`',
 340         'W','H','E','R','E',' ',
 341         '`','P','r','o','p','e','r','t','y','`',' ','=',' ',
 342         '\'','%','s','\'',0
 343     };
 344     MSIRECORD *rec = NULL;
 345     LPCWSTR val = NULL;
 346     LPWSTR ret = NULL;
 347
 348     /* find if there is a value associated with the checkbox */
 349     rec = MSI_QueryGetRecord( dialog->package->db, query, prop );
 350     if (!rec)
 351         return ret;
 352
 353     val = MSI_RecordGetString( rec, 2 );
 354     if (val)
 355     {
 356         deformat_string( dialog->package, val, &ret );
 357         if( ret && !ret[0] )
 358         {
 359             HeapFree( GetProcessHeap(), 0, ret );
 360             ret = NULL;
 361         }
 362     }
 363     msiobj_release( &rec->hdr );
 364     if (ret)
 365         return ret;
 366
 367     ret = load_dynamic_property(dialog->package, prop, NULL);
 368     if( ret && !ret[0] )
 369     {
 370         HeapFree( GetProcessHeap(), 0, ret );
 371         ret = NULL;
 372     }
 373
 374     return ret;
 375 }
 376
 377 static UINT msi_dialog_checkbox_control( msi_dialog *dialog, MSIRECORD *rec )
 378 {
 379     msi_control *control;
 380     LPCWSTR prop;
 381
 382     TRACE("%p %p\n", dialog, rec);
 383
 384     control = msi_dialog_add_control( dialog, rec, szButton,
 385                                       BS_CHECKBOX | BS_MULTILINE );
 386     control->handler = msi_dialog_checkbox_handler;
 387     prop = MSI_RecordGetString( rec, 9 );
 388     if( prop )
 389     {
 390         control->property = strdupW( prop );
 391         control->value = msi_get_checkbox_value( dialog, prop );
 392         TRACE("control %s value %s\n", debugstr_w(control->property),
 393               debugstr_w(control->value));
 394     }
 395     msi_dialog_checkbox_sync_state( dialog, control );
 396
 397     return ERROR_SUCCESS;
 398 }
 399
 400 static UINT msi_dialog_line_control( msi_dialog *dialog, MSIRECORD *rec )
 401 {
 402     TRACE("%p %p\n", dialog, rec);
 403
 404     msi_dialog_add_control( dialog, rec, szStatic, SS_ETCHEDHORZ | SS_SUNKEN );
 405     return ERROR_SUCCESS;
 406 }
 407
 408 static UINT msi_dialog_scrolltext_control( msi_dialog *dialog, MSIRECORD *rec )
 409 {
 410     const static WCHAR szEdit[] = { 'E','D','I','T',0 };
 411
 412     FIXME("%p %p\n", dialog, rec);
 413
 414     msi_dialog_add_control( dialog, rec, szEdit, WS_BORDER |
 415                  ES_MULTILINE | WS_VSCROLL | ES_READONLY | ES_AUTOVSCROLL );
 416
 417     return ERROR_SUCCESS;
 418 }
 419
 420 static UINT msi_load_bitmap( MSIDATABASE *db, LPCWSTR name, IPicture **pic )
 421 {
 422     const static WCHAR query[] = {
 423         's','e','l','e','c','t',' ','*',' ',
 424         'f','r','o','m',' ','B','i','n','a','r','y',' ',
 425         'w','h','e','r','e',' ',
 426             '`','N','a','m','e','`',' ','=',' ','\'','%','s','\'',0
 427     };
 428     MSIQUERY *view = NULL;
 429     MSIRECORD *rec = NULL;
 430     IStream *stm = NULL;
 431     UINT r;
 432
 433     r = MSI_OpenQuery( db, &view, query, name );
 434     if( r != ERROR_SUCCESS )
 435         return r;
 436
 437     MSI_ViewExecute( view, NULL );
 438     MSI_ViewFetch( view, &rec );
 439     MSI_ViewClose( view );
 440     msiobj_release( &view->hdr );
 441
 442     if( !rec )
 443         return ERROR_FUNCTION_FAILED;
 444
 445     r = MSI_RecordGetIStream( rec, 2, &stm );
 446     msiobj_release( &rec->hdr );
 447     if( r != ERROR_SUCCESS )
 448         return r;
 449
 450     r = OleLoadPicture( stm, 0, TRUE, &IID_IPicture, (LPVOID*) pic );
 451     IStream_Release( stm );
 452     if( FAILED( r ) )
 453         return ERROR_FUNCTION_FAILED;
 454
 455     return ERROR_SUCCESS;
 456 }
 457
 458 static UINT msi_dialog_bitmap_control( msi_dialog *dialog, MSIRECORD *rec )
 459 {
 460     IPicture *pic = NULL;
 461     msi_control *control;
 462     OLE_HANDLE hBitmap = 0;
 463     LPCWSTR text;
 464     UINT r;
 465
 466     control = msi_dialog_add_control( dialog, rec, szStatic,
 467                             SS_BITMAP | SS_LEFT | SS_CENTERIMAGE );
 468     text = MSI_RecordGetString( rec, 10 );
 469     r = msi_load_bitmap( dialog->package->db, text, &pic );
 470     if( r == ERROR_SUCCESS )
 471     {
 472         r = IPicture_get_Handle( pic, &hBitmap );
 473         if( SUCCEEDED( r ) )
 474             SendMessageW( control->hwnd, STM_SETIMAGE, IMAGE_BITMAP, hBitmap );
 475         control->pic = pic;
 476     }
 477
 478     return ERROR_SUCCESS;
 479 }
 480
 481 static UINT msi_dialog_combo_control( msi_dialog *dialog, MSIRECORD *rec )
 482 {
 483     static const WCHAR szCombo[] = { 'C','O','M','B','O','B','O','X',0 };
 484
 485     msi_dialog_add_control( dialog, rec, szCombo,
 486                             SS_BITMAP | SS_LEFT | SS_CENTERIMAGE );
 487     return ERROR_SUCCESS;
 488 }
 489
 490 static UINT msi_dialog_edit_control( msi_dialog *dialog, MSIRECORD *rec )
 491 {
 492     const static WCHAR szEdit[] = { 'E','D','I','T',0 };
 493     msi_control *control;
 494     LPCWSTR prop;
 495     LPWSTR val;
 496
 497     control = msi_dialog_add_control( dialog, rec, szEdit, WS_BORDER );
 498     control->handler = msi_dialog_edit_handler;
 499     prop = MSI_RecordGetString( rec, 9 );
 500     if( prop )
 501         control->property = strdupW( prop );
 502     val = load_dynamic_property( dialog->package, control->property, NULL );
 503     SetWindowTextW( control->hwnd, val );
 504     HeapFree( GetProcessHeap(), 0, val );
 505     return ERROR_SUCCESS;
 506 }
 507
 508 static UINT msi_dialog_pathedit_control( msi_dialog *dialog, MSIRECORD *rec )
 509 {
 510     FIXME("not implemented properly\n");
 511     return msi_dialog_edit_control( dialog, rec );
 512 }
 513
 514 /* radio buttons are a bit different from normal controls */
 515 static UINT msi_dialog_create_radiobutton( MSIRECORD *rec, LPVOID param )
 516 {
 517     radio_button_group_descr *group = (radio_button_group_descr *)param;
 518     msi_dialog *dialog = group->dialog;
 519     msi_control *control;
 520     LPCWSTR prop, text, name;
 521     DWORD style;
 522     DWORD attributes = group->attributes;
 523
 524     style = WS_CHILD | BS_AUTORADIOBUTTON | BS_MULTILINE;
 525     name = MSI_RecordGetString( rec, 3 );
 526     text = MSI_RecordGetString( rec, 8 );
 527     if( attributes & 1 )
 528         style |= WS_VISIBLE;
 529     if( ~attributes & 2 )
 530         style |= WS_DISABLED;
 531
 532     control = msi_dialog_create_window( dialog, rec, szButton, name, text,
 533                                         style, group->parent->hwnd );
 534     control->handler = msi_dialog_radiogroup_handler;
 535
 536     prop = MSI_RecordGetString( rec, 1 );
 537     if( prop )
 538         control->property = strdupW( prop );
 539
 540     return ERROR_SUCCESS;
 541 }
 542
 543 static UINT msi_dialog_radiogroup_control( msi_dialog *dialog, MSIRECORD *rec )
 544 {
 545     static const WCHAR query[] = {
 546         'S','E','L','E','C','T',' ','*',' ',
 547         'F','R','O','M',' ','R','a','d','i','o','B','u','t','t','o','n',' ',
 548         'W','H','E','R','E',' ',
 549            '`','P','r','o','p','e','r','t','y','`',' ','=',' ','\'','%','s','\'',0};
 550     UINT r;
 551     LPCWSTR prop;
 552     msi_control *control;
 553     MSIQUERY *view = NULL;
 554     radio_button_group_descr group;
 555     MSIPACKAGE *package = dialog->package;
 556
 557     prop = MSI_RecordGetString( rec, 9 );
 558
 559     TRACE("%p %p %s\n", dialog, rec, debugstr_w( prop ));
 560
 561     /* Create parent group box to hold radio buttons */
 562     control = msi_dialog_add_control( dialog, rec, szButton, BS_OWNERDRAW );
 563
 564     if (control->hwnd)
 565     {
 566         WNDPROC oldproc = (WNDPROC) SetWindowLongPtrW(control->hwnd, GWLP_WNDPROC,
 567             (LONG_PTR)MSIRadioGroup_WndProc);
 568         SetPropW(control->hwnd, szButtonData, oldproc);
 569     }
 570
 571     if( prop )
 572         control->property = strdupW( prop );
 573
 574     /* query the Radio Button table for all control in this group */
 575     r = MSI_OpenQuery( package->db, &view, query, prop );
 576     if( r != ERROR_SUCCESS )
 577     {
 578         ERR("query failed for dialog %s radio group %s\n",
 579             debugstr_w(dialog->name), debugstr_w(prop));
 580         return ERROR_INVALID_PARAMETER;
 581     }
 582
 583     group.dialog = dialog;
 584     group.parent = control;
 585     group.attributes = MSI_RecordGetInteger( rec, 8 );
 586
 587     r = MSI_IterateRecords( view, 0, msi_dialog_create_radiobutton, &group );
 588     msiobj_release( &view->hdr );
 589
 590     return r;
 591 }
 592
 593 static const WCHAR szText[] = { 'T','e','x','t',0 };
 594 static const WCHAR szPushButton[] = { 'P','u','s','h','B','u','t','t','o','n',0 };
 595 static const WCHAR szLine[] = { 'L','i','n','e',0 };
 596 static const WCHAR szBitmap[] = { 'B','i','t','m','a','p',0 };
 597 static const WCHAR szCheckBox[] = { 'C','h','e','c','k','B','o','x',0 };
 598 static const WCHAR szScrollableText[] = {
 599     'S','c','r','o','l','l','a','b','l','e','T','e','x','t',0 };
 600 static const WCHAR szComboBox[] = { 'C','o','m','b','o','B','o','x',0 };
 601 static const WCHAR szEdit[] = { 'E','d','i','t',0 };
 602 static const WCHAR szMaskedEdit[] = { 'M','a','s','k','e','d','E','d','i','t',0 };
 603 static const WCHAR szPathEdit[] = { 'P','a','t','h','E','d','i','t',0 };
 604 static const WCHAR szRadioButtonGroup[] = {
 605     'R','a','d','i','o','B','u','t','t','o','n','G','r','o','u','p',0 };
 606
 607 struct control_handler msi_dialog_handler[] =
 608 {
 609     { szText, msi_dialog_text_control },
 610     { szPushButton, msi_dialog_button_control },
 611     { szLine, msi_dialog_line_control },
 612     { szBitmap, msi_dialog_bitmap_control },
 613     { szCheckBox, msi_dialog_checkbox_control },
 614     { szScrollableText, msi_dialog_scrolltext_control },
 615     { szComboBox, msi_dialog_combo_control },
 616     { szEdit, msi_dialog_edit_control },
 617     { szMaskedEdit, msi_dialog_edit_control },
 618     { szPathEdit, msi_dialog_pathedit_control },
 619     { szRadioButtonGroup, msi_dialog_radiogroup_control },
 620 };
 621
 622 #define NUM_CONTROL_TYPES (sizeof msi_dialog_handler/sizeof msi_dialog_handler[0])
 623
 624 static UINT msi_dialog_create_controls( MSIRECORD *rec, LPVOID param )
 625 {
 626     msi_dialog *dialog = param;
 627     LPCWSTR control_type;
 628     UINT i;
 629
 630     /* find and call the function that can create this type of control */
 631     control_type = MSI_RecordGetString( rec, 3 );
 632     for( i=0; i<NUM_CONTROL_TYPES; i++ )
 633         if (!strcmpiW( msi_dialog_handler[i].control_type, control_type ))
 634             break;
 635     if( i != NUM_CONTROL_TYPES )
 636         msi_dialog_handler[i].func( dialog, rec );
 637     else
 638         ERR("no handler for element type %s\n", debugstr_w(control_type));
 639
 640     return ERROR_SUCCESS;
 641 }
 642
 643 static UINT msi_dialog_fill_controls( msi_dialog *dialog )
 644 {
 645     static const WCHAR query[] = {
 646         'S','E','L','E','C','T',' ','*',' ',
 647         'F','R','O','M',' ','C','o','n','t','r','o','l',' ',
 648         'W','H','E','R','E',' ',
 649            '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',0};
 650     UINT r;
 651     MSIQUERY *view = NULL;
 652     MSIPACKAGE *package = dialog->package;
 653
 654     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
 655
 656     /* query the Control table for all the elements of the control */
 657     r = MSI_OpenQuery( package->db, &view, query, dialog->name );
 658     if( r != ERROR_SUCCESS )
 659     {
 660         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
 661         return ERROR_INVALID_PARAMETER;
 662     }
 663
 664     r = MSI_IterateRecords( view, 0, msi_dialog_create_controls, dialog );
 665     msiobj_release( &view->hdr );
 666
 667     return r;
 668 }
 669
 670 static msi_control *msi_dialog_find_control( msi_dialog *dialog, LPCWSTR name )
 671 {
 672     msi_control *control;
 673
 674     for( control = dialog->control_list; control; control = control->next )
 675         if( !strcmpW( control->name, name ) ) /* FIXME: case sensitive? */
 676             break;
 677     return control;
 678 }
 679
 680 static msi_control *msi_dialog_find_control_by_hwnd( msi_dialog *dialog, HWND hwnd )
 681 {
 682     msi_control *control;
 683
 684     for( control = dialog->control_list; control; control = control->next )
 685         if( hwnd == control->hwnd )
 686             break;
 687     return control;
 688 }
 689
 690 static UINT msi_dialog_set_control_condition( MSIRECORD *rec, LPVOID param )
 691 {
 692     static const WCHAR szHide[] = { 'H','i','d','e',0 };
 693     static const WCHAR szShow[] = { 'S','h','o','w',0 };
 694     static const WCHAR szDisable[] = { 'D','i','s','a','b','l','e',0 };
 695     static const WCHAR szEnable[] = { 'E','n','a','b','l','e',0 };
 696     msi_dialog *dialog = param;
 697     msi_control *control;
 698     LPCWSTR name, action, condition;
 699     UINT r;
 700
 701     name = MSI_RecordGetString( rec, 2 );
 702     action = MSI_RecordGetString( rec, 3 );
 703     condition = MSI_RecordGetString( rec, 4 );
 704     r = MSI_EvaluateConditionW( dialog->package, condition );
 705     control = msi_dialog_find_control( dialog, name );
 706     if( r && control )
 707     {
 708         TRACE("%s control %s\n", debugstr_w(action), debugstr_w(name));
 709
 710         /* FIXME: case sensitive? */
 711         if(!strcmpW(action, szHide))
 712             ShowWindow(control->hwnd, SW_HIDE);
 713         else if(!strcmpW(action, szShow))
 714             ShowWindow(control->hwnd, SW_SHOW);
 715         else if(!strcmpW(action, szDisable))
 716             EnableWindow(control->hwnd, FALSE);
 717         else if(!strcmpW(action, szEnable))
 718             EnableWindow(control->hwnd, TRUE);
 719         else
 720             FIXME("Unhandled action %s\n", debugstr_w(action));
 721     }
 722
 723     return ERROR_SUCCESS;
 724 }
 725
 726 static UINT msi_dialog_evaluate_control_conditions( msi_dialog *dialog )
 727 {
 728     static const WCHAR query[] = {
 729       'S','E','L','E','C','T',' ','*',' ',
 730       'F','R','O','M',' ',
 731         'C','o','n','t','r','o','l','C','o','n','d','i','t','i','o','n',' ',
 732       'W','H','E','R','E',' ',
 733         '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',0
 734     };
 735     UINT r;
 736     MSIQUERY *view = NULL;
 737     MSIPACKAGE *package = dialog->package;
 738
 739     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
 740
 741     /* query the Control table for all the elements of the control */
 742     r = MSI_OpenQuery( package->db, &view, query, dialog->name );
 743     if( r != ERROR_SUCCESS )
 744     {
 745         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
 746         return ERROR_INVALID_PARAMETER;
 747     }
 748
 749     r = MSI_IterateRecords( view, 0, msi_dialog_set_control_condition, dialog );
 750     msiobj_release( &view->hdr );
 751
 752     return r;
 753 }
 754
 755 /* figure out the height of 10 point MS Sans Serif */
 756 static INT msi_dialog_get_sans_serif_height( HWND hwnd )
 757 {
 758     static const WCHAR szSansSerif[] = {
 759         'M','S',' ','S','a','n','s',' ','S','e','r','i','f',0 };
 760     LOGFONTW lf;
 761     TEXTMETRICW tm;
 762     BOOL r;
 763     LONG height = 0;
 764     HFONT hFont, hOldFont;
 765     HDC hdc;
 766
 767     hdc = GetDC( hwnd );
 768     if (hdc)
 769     {
 770         memset( &lf, 0, sizeof lf );
 771         lf.lfHeight = MulDiv(10, GetDeviceCaps(hdc, LOGPIXELSY), 72);
 772         strcpyW( lf.lfFaceName, szSansSerif );
 773         hFont = CreateFontIndirectW(&lf);
 774         if (hFont)
 775         {
 776             hOldFont = SelectObject( hdc, hFont );
 777             r = GetTextMetricsW( hdc, &tm );
 778             if (r)
 779                 height = tm.tmHeight;
 780             SelectObject( hdc, hOldFont );
 781             DeleteObject( hFont );
 782         }
 783         ReleaseDC( hwnd, hdc );
 784     }
 785     return height;
 786 }
 787
 788 /* fetch the associated record from the Dialog table */
 789 static MSIRECORD *msi_get_dialog_record( msi_dialog *dialog )
 790 {
 791     static const WCHAR query[] = {
 792         'S','E','L','E','C','T',' ','*',' ',
 793         'F','R','O','M',' ','D','i','a','l','o','g',' ',
 794         'W','H','E','R','E',' ',
 795            '`','D','i','a','l','o','g','`',' ','=',' ','\'','%','s','\'',0};
 796     MSIPACKAGE *package = dialog->package;
 797     MSIRECORD *rec = NULL;
 798
 799     TRACE("%p %s\n", dialog, debugstr_w(dialog->name) );
 800
 801     rec = MSI_QueryGetRecord( package->db, query, dialog->name );
 802     if( !rec )
 803         ERR("query failed for dialog %s\n", debugstr_w(dialog->name));
 804
 805     return rec;
 806 }
 807
 808 static LRESULT msi_dialog_oncreate( HWND hwnd, LPCREATESTRUCTW cs )
 809 {
 810     static const WCHAR df[] = {
 811         'D','e','f','a','u','l','t','U','I','F','o','n','t',0 };
 812     msi_dialog *dialog = (msi_dialog*) cs->lpCreateParams;
 813     MSIRECORD *rec = NULL;
 814     DWORD width, height;
 815     LPCWSTR text;
 816     LPWSTR title = NULL;
 817
 818     TRACE("%p %p\n", dialog, dialog->package);
 819
 820     dialog->hwnd = hwnd;
 821     SetWindowLongPtrW( hwnd, GWLP_USERDATA, (LONG_PTR) dialog );
 822
 823     rec = msi_get_dialog_record( dialog );
 824     if( !rec )
 825     {
 826         TRACE("No record found for dialog %s\n", debugstr_w(dialog->name));
 827         return -1;
 828     }
 829
 830     dialog->scale = msi_dialog_get_sans_serif_height(dialog->hwnd);
 831
 832     width = MSI_RecordGetInteger( rec, 4 );
 833     height = MSI_RecordGetInteger( rec, 5 );
 834     dialog->attributes = MSI_RecordGetInteger( rec, 6 );
 835     text = MSI_RecordGetString( rec, 7 );
 836
 837     width = msi_dialog_scale_unit( dialog, width );
 838     height = msi_dialog_scale_unit( dialog, height ) + 25; /* FIXME */
 839
 840     dialog->default_font = load_dynamic_property( dialog->package, df, NULL );
 841
 842     deformat_string( dialog->package, text, &title );
 843     SetWindowTextW( hwnd, title );
 844     SetWindowPos( hwnd, 0, 0, 0, width, height,
 845                   SWP_NOMOVE | SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOREDRAW );
 846
 847     HeapFree( GetProcessHeap(), 0, title );
 848     msiobj_release( &rec->hdr );
 849
 850     msi_dialog_build_font_list( dialog );
 851     msi_dialog_fill_controls( dialog );
 852     msi_dialog_evaluate_control_conditions( dialog );
 853
 854     return 0;
 855 }
 856
 857 static UINT msi_dialog_send_event( msi_dialog *dialog, LPCWSTR event, LPCWSTR arg )
 858 {
 859     LPWSTR event_fmt = NULL, arg_fmt = NULL;
 860
 861     TRACE("Sending control event %s %s\n", debugstr_w(event), debugstr_w(arg));
 862
 863     deformat_string( dialog->package, event, &event_fmt );
 864     deformat_string( dialog->package, arg, &arg_fmt );
 865
 866     dialog->event_handler( dialog->package, event_fmt, arg_fmt, dialog );
 867
 868     HeapFree( GetProcessHeap(), 0, event_fmt );
 869     HeapFree( GetProcessHeap(), 0, arg_fmt );
 870
 871     return ERROR_SUCCESS;
 872 }
 873
 874 static UINT msi_dialog_set_property( msi_dialog *dialog, LPCWSTR event, LPCWSTR arg )
 875 {
 876     static const WCHAR szNullArg[] = { '{','}',0 };
 877     LPWSTR p, prop, arg_fmt = NULL;
 878     UINT len;
 879
 880     len = strlenW(event);
 881     prop = HeapAlloc( GetProcessHeap(), 0, len*sizeof(WCHAR));
 882     strcpyW( prop, &event[1] );
 883     p = strchrW( prop, ']' );
 884     if( p && p[1] == 0 )
 885     {
 886         *p = 0;
 887         if( strcmpW( szNullArg, arg ) )
 888             deformat_string( dialog->package, arg, &arg_fmt );
 889         MSI_SetPropertyW( dialog->package, prop, arg_fmt );
 890     }
 891     else
 892         ERR("Badly formatted property string - what happens?\n");
 893     HeapFree( GetProcessHeap(), 0, prop );
 894     return ERROR_SUCCESS;
 895 }
 896
 897 static UINT msi_dialog_control_event( MSIRECORD *rec, LPVOID param )
 898 {
 899     msi_dialog *dialog = param;
 900     LPCWSTR condition, event, arg;
 901     UINT r;
 902
 903     condition = MSI_RecordGetString( rec, 5 );
 904     r = MSI_EvaluateConditionW( dialog->package, condition );
 905     if( r )
 906     {
 907         event = MSI_RecordGetString( rec, 3 );
 908         arg = MSI_RecordGetString( rec, 4 );
 909         if( event[0] == '[' )
 910             msi_dialog_set_property( dialog, event, arg );
 911         else
 912             msi_dialog_send_event( dialog, event, arg );
 913     }
 914
 915     return ERROR_SUCCESS;
 916 }
 917
 918 static UINT msi_dialog_button_handler( msi_dialog *dialog,
 919                                        msi_control *control, WPARAM param )
 920 {
 921     static const WCHAR query[] = {
 922       'S','E','L','E','C','T',' ','*',' ',
 923       'F','R','O','M',' ','C','o','n','t','r','o','l','E','v','e','n','t',' ',
 924       'W','H','E','R','E',' ',
 925          '`','D','i','a','l','o','g','_','`',' ','=',' ','\'','%','s','\'',' ',
 926       'A','N','D',' ',
 927          '`','C','o','n','t','r','o','l','_','`',' ','=',' ','\'','%','s','\'',' ',
 928       'O','R','D','E','R',' ','B','Y',' ','`','O','r','d','e','r','i','n','g','`',0
 929     };
 930     MSIQUERY *view = NULL;
 931     UINT r;
 932
 933     if( HIWORD(param) != BN_CLICKED )
 934         return ERROR_SUCCESS;
 935
 936     r = MSI_OpenQuery( dialog->package->db, &view, query,
 937                        dialog->name, control->name );
 938     if( r != ERROR_SUCCESS )
 939     {
 940         ERR("query failed\n");
 941         return 0;
 942     }
 943
 944     r = MSI_IterateRecords( view, 0, msi_dialog_control_event, dialog );
 945     msiobj_release( &view->hdr );
 946
 947     return r;
 948 }
 949
 950 static UINT msi_dialog_get_checkbox_state( msi_dialog *dialog,
 951                 msi_control *control )
 952 {
 953     WCHAR state[2] = { 0 };
 954     DWORD sz = 2;
 955
 956     MSI_GetPropertyW( dialog->package, control->property, state, &sz );
 957     return state[0] ? 1 : 0;
 958 }
 959
 960 static void msi_dialog_set_checkbox_state( msi_dialog *dialog,
 961                 msi_control *control, UINT state )
 962 {
 963     static const WCHAR szState[] = { '1', 0 };
 964     LPCWSTR val;
 965
 966     /* if uncheck then the property is set to NULL */
 967     if (!state)
 968     {
 969         MSI_SetPropertyW( dialog->package, control->property, NULL );
 970         return;
 971     }
 972
 973     /* check for a custom state */
 974     if (control->value && control->value[0])
 975         val = control->value;
 976     else
 977         val = szState;
 978
 979     MSI_SetPropertyW( dialog->package, control->property, val );
 980 }
 981
 982 static void msi_dialog_checkbox_sync_state( msi_dialog *dialog,
 983                 msi_control *control )
 984 {
 985     UINT state;
 986
 987     state = msi_dialog_get_checkbox_state( dialog, control );
 988     SendMessageW( control->hwnd, BM_SETCHECK,
 989                   state ? BST_CHECKED : BST_UNCHECKED, 0 );
 990 }
 991
 992 static UINT msi_dialog_checkbox_handler( msi_dialog *dialog,
 993                 msi_control *control, WPARAM param )
 994 {
 995     UINT state;
 996
 997     if( HIWORD(param) != BN_CLICKED )
 998         return ERROR_SUCCESS;
 999
1000     TRACE("clicked checkbox %s, set %s\n", debugstr_w(control->name),
1001           debugstr_w(control->property));
1002
1003     state = msi_dialog_get_checkbox_state( dialog, control );
1004     state = state ? 0 : 1;
1005     msi_dialog_set_checkbox_state( dialog, control, state );
1006     msi_dialog_checkbox_sync_state( dialog, control );
1007
1008     return msi_dialog_button_handler( dialog, control, param );
1009 }
1010
1011 static UINT msi_dialog_edit_handler( msi_dialog *dialog,
1012                 msi_control *control, WPARAM param )
1013 {
1014     UINT sz, r;
1015     LPWSTR buf;
1016
1017     if( HIWORD(param) != EN_CHANGE )
1018         return ERROR_SUCCESS;
1019
1020     TRACE("edit %s contents changed, set %s\n", debugstr_w(control->name),
1021           debugstr_w(control->property));
1022
1023     sz = 0x20;
1024     buf = HeapAlloc( GetProcessHeap(), 0, sz*sizeof(WCHAR) );
1025     while( buf )
1026     {
1027         r = GetWindowTextW( control->hwnd, buf, sz );
1028         if( r < (sz-1) )
1029             break;
1030             sz *= 2;
1031         buf = HeapReAlloc( GetProcessHeap(), 0, buf, sz*sizeof(WCHAR) );
1032     }
1033
1034     MSI_SetPropertyW( dialog->package, control->property, buf );
1035
1036     HeapFree( GetProcessHeap(), 0, buf );
1037
1038     return ERROR_SUCCESS;
1039 }
1040
1041 static UINT msi_dialog_radiogroup_handler( msi_dialog *dialog,
1042                 msi_control *control, WPARAM param )
1043 {
1044     if( HIWORD(param) != BN_CLICKED )
1045         return ERROR_SUCCESS;
1046
1047     TRACE("clicked radio button %s, set %s\n", debugstr_w(control->name),
1048           debugstr_w(control->property));
1049
1050     MSI_SetPropertyW( dialog->package, control->property, control->name );
1051
1052     return msi_dialog_button_handler( dialog, control, param );
1053 }
1054
1055 static LRESULT msi_dialog_oncommand( msi_dialog *dialog, WPARAM param, HWND hwnd )
1056 {
1057     msi_control *control;
1058
1059     TRACE("%p %p %08x\n", dialog, hwnd, param);
1060
1061     control = msi_dialog_find_control_by_hwnd( dialog, hwnd );
1062     if( control )
1063     {
1064         if( control->handler )
1065         {
1066             control->handler( dialog, control, param );
1067             msi_dialog_evaluate_control_conditions( dialog );
1068         }
1069     }
1070     else
1071         ERR("button click from nowhere\n");
1072     return 0;
1073 }
1074
1075 static LRESULT WINAPI MSIDialog_WndProc( HWND hwnd, UINT msg,
1076                 WPARAM wParam, LPARAM lParam )
1077 {
1078     msi_dialog *dialog = (LPVOID) GetWindowLongPtrW( hwnd, GWLP_USERDATA );
1079
1080     TRACE("0x%04x\n", msg);
1081
1082     switch (msg)
1083     {
1084     case WM_CREATE:
1085         return msi_dialog_oncreate( hwnd, (LPCREATESTRUCTW)lParam );
1086
1087     case WM_COMMAND:
1088         return msi_dialog_oncommand( dialog, wParam, (HWND)lParam );
1089
1090     case WM_DESTROY:
1091         dialog->hwnd = NULL;
1092         return 0;
1093     }
1094     return DefWindowProcW(hwnd, msg, wParam, lParam);
1095 }
1096
1097 static LRESULT WINAPI MSIRadioGroup_WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
1098 {
1099     WNDPROC oldproc = (WNDPROC) GetPropW(hWnd, szButtonData);
1100
1101     TRACE("hWnd %p msg %04x wParam 0x%08x lParam 0x%08lx\n", hWnd, msg, wParam, lParam);
1102
1103     if (msg == WM_COMMAND) /* Forward notifications to dialog */
1104         SendMessageW(GetParent(hWnd), msg, wParam, lParam);
1105
1106     return CallWindowProcW(oldproc, hWnd, msg, wParam, lParam);
1107 }
1108
1109 static LRESULT WINAPI MSIHiddenWindowProc( HWND hwnd, UINT msg,
1110                 WPARAM wParam, LPARAM lParam )
1111 {
1112     msi_dialog *dialog = (msi_dialog*) lParam;
1113
1114     TRACE("%d %p\n", msg, dialog);
1115
1116     switch (msg)
1117     {
1118     case WM_MSI_DIALOG_CREATE:
1119         return msi_dialog_run_message_loop( dialog );
1120     case WM_MSI_DIALOG_DESTROY:
1121         msi_dialog_destroy( dialog );
1122         return 0;
1123     }
1124     return DefWindowProcW( hwnd, msg, wParam, lParam );
1125 }
1126
1127 /* functions that interface to other modules within MSI */
1128
1129 msi_dialog *msi_dialog_create( MSIPACKAGE* package, LPCWSTR szDialogName,
1130                                 msi_dialog_event_handler event_handler )
1131 {
1132     MSIRECORD *rec = NULL;
1133     msi_dialog *dialog;
1134
1135     TRACE("%p %s\n", package, debugstr_w(szDialogName));
1136
1137     /* allocate the structure for the dialog to use */
1138     dialog = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
1139                         sizeof *dialog + sizeof(WCHAR)*strlenW(szDialogName) );
1140     if( !dialog )
1141         return NULL;
1142     strcpyW( dialog->name, szDialogName );
1143     msiobj_addref( &package->hdr );
1144     dialog->package = package;
1145     dialog->event_handler = event_handler;
1146     dialog->finished = 0;
1147
1148     /* verify that the dialog exists */
1149     rec = msi_get_dialog_record( dialog );
1150     if( !rec )
1151     {
1152         HeapFree( GetProcessHeap(), 0, dialog );
1153         return NULL;
1154     }
1155     dialog->attributes = MSI_RecordGetInteger( rec, 6 );
1156     msiobj_release( &rec->hdr );
1157
1158     return dialog;
1159 }
1160
1161 static void msi_process_pending_messages(void)
1162 {
1163     MSG msg;
1164
1165     while( PeekMessageW( &msg, 0, 0, 0, PM_REMOVE ) )
1166     {
1167         TranslateMessage( &msg );
1168         DispatchMessageW( &msg );
1169     }
1170 }
1171
1172 void msi_dialog_end_dialog( msi_dialog *dialog )
1173 {
1174     TRACE("%p\n", dialog);
1175     dialog->finished = 1;
1176     PostMessageW(dialog->hwnd, WM_NULL, 0, 0);
1177 }
1178
1179 void msi_dialog_check_messages( HANDLE handle )
1180 {
1181     DWORD r;
1182
1183     /* in threads other than the UI thread, block */
1184     if( uiThreadId != GetCurrentThreadId() )
1185     {
1186         if( handle )
1187             WaitForSingleObject( handle, INFINITE );
1188         return;
1189     }
1190
1191     /* there's two choices for the UI thread */
1192     while (1)
1193     {
1194         msi_process_pending_messages();
1195
1196         if( !handle )
1197             break;
1198
1199         /*
1200          * block here until somebody creates a new dialog or
1201          * the handle we're waiting on becomes ready
1202          */
1203         r = MsgWaitForMultipleObjects( 1, &handle, 0, INFINITE, QS_ALLINPUT );
1204         if( r == WAIT_OBJECT_0 )
1205             break;
1206     }
1207 }
1208
1209 UINT msi_dialog_run_message_loop( msi_dialog *dialog )
1210 {
1211     HWND hwnd;
1212
1213     if( !(dialog->attributes & msidbDialogAttributesVisible) )
1214         return ERROR_SUCCESS;
1215
1216     if( uiThreadId != GetCurrentThreadId() )
1217         return SendMessageW( hMsiHiddenWindow, WM_MSI_DIALOG_CREATE, 0, (LPARAM) dialog );
1218
1219     /* create the dialog window, don't show it yet */
1220     hwnd = CreateWindowW( szMsiDialogClass, dialog->name, WS_OVERLAPPEDWINDOW,
1221                      CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
1222                      NULL, NULL, NULL, dialog );
1223     if( !hwnd )
1224     {
1225         ERR("Failed to create dialog %s\n", debugstr_w( dialog->name ));
1226         return ERROR_FUNCTION_FAILED;
1227     }
1228
1229     ShowWindow( hwnd, SW_SHOW );
1230     UpdateWindow( hwnd );
1231
1232     if( dialog->attributes & msidbDialogAttributesModal )
1233     {
1234         while( !dialog->finished )
1235         {
1236             MsgWaitForMultipleObjects( 0, NULL, 0, INFINITE, QS_ALLEVENTS );
1237             msi_process_pending_messages();
1238         }
1239     }
1240     else
1241         return ERROR_IO_PENDING;
1242
1243     return ERROR_SUCCESS;
1244 }
1245
1246 void msi_dialog_do_preview( msi_dialog *dialog )
1247 {
1248     TRACE("\n");
1249     dialog->attributes |= msidbDialogAttributesVisible;
1250     dialog->attributes &= ~msidbDialogAttributesModal;
1251     msi_dialog_run_message_loop( dialog );
1252 }
1253
1254 void msi_dialog_destroy( msi_dialog *dialog )
1255 {
1256     if( uiThreadId != GetCurrentThreadId() )
1257     {
1258         SendMessageW( hMsiHiddenWindow, WM_MSI_DIALOG_DESTROY, 0, (LPARAM) dialog );
1259         return;
1260     }
1261
1262     if( dialog->hwnd )
1263         ShowWindow( dialog->hwnd, SW_HIDE );
1264
1265     /* destroy the list of controls */
1266     while( dialog->control_list )
1267     {
1268         msi_control *t = dialog->control_list;
1269         dialog->control_list = t->next;
1270         /* leave dialog->hwnd - destroying parent destroys child windows */
1271         HeapFree( GetProcessHeap(), 0, t->property );
1272         HeapFree( GetProcessHeap(), 0, t->value );
1273         if( t->pic )
1274             IPicture_Release( t->pic );
1275         HeapFree( GetProcessHeap(), 0, t );
1276     }
1277
1278     /* destroy the list of fonts */
1279     while( dialog->font_list )
1280     {
1281         msi_font *t = dialog->font_list;
1282         dialog->font_list = t->next;
1283         DeleteObject( t->hfont );
1284         HeapFree( GetProcessHeap(), 0, t );
1285     }
1286     HeapFree( GetProcessHeap(), 0, dialog->default_font );
1287
1288     if( dialog->hwnd )
1289         DestroyWindow( dialog->hwnd );
1290
1291     msiobj_release( &dialog->package->hdr );
1292     dialog->package = NULL;
1293     HeapFree( GetProcessHeap(), 0, dialog );
1294 }
1295
1296 BOOL msi_dialog_register_class( void )
1297 {
1298     WNDCLASSW cls;
1299
1300     ZeroMemory( &cls, sizeof cls );
1301     cls.lpfnWndProc   = MSIDialog_WndProc;
1302     cls.hInstance     = NULL;
1303     cls.hIcon         = LoadIconW(0, (LPWSTR)IDI_APPLICATION);
1304     cls.hCursor       = LoadCursorW(0, (LPWSTR)IDC_ARROW);
1305     cls.hbrBackground = (HBRUSH)(COLOR_WINDOW);
1306     cls.lpszMenuName  = NULL;
1307     cls.lpszClassName = szMsiDialogClass;
1308
1309     if( !RegisterClassW( &cls ) )
1310         return FALSE;
1311
1312     cls.lpfnWndProc   = MSIHiddenWindowProc;
1313     cls.lpszClassName = szMsiHiddenWindow;
1314
1315     if( !RegisterClassW( &cls ) )
1316         return FALSE;
1317
1318     uiThreadId = GetCurrentThreadId();
1319
1320     hMsiHiddenWindow = CreateWindowW( szMsiHiddenWindow, NULL, WS_OVERLAPPED,
1321                                    0, 0, 100, 100, NULL, NULL, NULL, NULL );
1322     if( !hMsiHiddenWindow )
1323         return FALSE;
1324
1325     return TRUE;
1326 }
1327
1328 void msi_dialog_unregister_class( void )
1329 {
1330     DestroyWindow( hMsiHiddenWindow );
1331     UnregisterClassW( szMsiDialogClass, NULL );
1332     uiThreadId = 0;
1333 }