Pileus Git - ~andy/gtk/blob - gdk/win32/gdkevents-win32.c

   1 /* GDK - The GIMP Drawing Kit
   2  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
   3  * Copyright (C) 1998-2002 Tor Lillqvist
   4  * Copyright (C) 2001,2009 Hans Breuer
   5  * Copyright (C) 2007-2009 Cody Russell
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the
  19  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20  * Boston, MA 02111-1307, USA.
  21  */
  22
  23 /*
  24  * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
  25  * file for a list of people on the GTK+ Team.  See the ChangeLog
  26  * files for a list of changes.  These files are distributed with
  27  * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
  28  */
  29
  30 /* Cannot use TrackMouseEvent, as the stupid WM_MOUSELEAVE message
  31  * doesn't tell us where the mouse has gone. Thus we cannot use it to
  32  * generate a correct GdkNotifyType. Pity, as using TrackMouseEvent
  33  * otherwise would make it possible to reliably generate
  34  * GDK_LEAVE_NOTIFY events, which would help get rid of those pesky
  35  * tooltips sometimes popping up in the wrong place.
  36  *
  37  * Update: a combination of TrackMouseEvent, GetCursorPos and
  38  * GetWindowPos can and is actually used to get rid of those
  39  * pesky tooltips. It should be possible to use this for the
  40  * whole ENTER/LEAVE NOTIFY handling but some platforms may
  41  * not have TrackMouseEvent at all (?) --hb
  42  */
  43
  44 #include "config.h"
  45
  46 #include <glib/gprintf.h>
  47
  48 #include "gdk.h"
  49 #include "gdkdisplayprivate.h"
  50 #include "gdkprivate-win32.h"
  51 #include "gdkkeysyms.h"
  52 #include "gdkdevicemanager-win32.h"
  53 #include "gdkdeviceprivate.h"
  54 #include "gdkdevice-wintab.h"
  55 #include "gdkwin32.h"
  56 #include "gdkwin32dnd.h"
  57 #include "gdkdndprivate.h"
  58
  59 #include <windowsx.h>
  60
  61 #ifdef G_WITH_CYGWIN
  62 #include <fcntl.h>
  63 #include <errno.h>
  64 #endif
  65
  66 #include <objbase.h>
  67
  68 #include <imm.h>
  69
  70 #ifndef XBUTTON1
  71 #define XBUTTON1 1
  72 #define XBUTTON2 2
  73 #endif
  74
  75 #ifndef VK_XBUTTON1
  76 #define VK_XBUTTON1 5
  77 #define VK_XBUTTON2 6
  78 #endif
  79
  80 #ifndef MK_XBUTTON1
  81 #define MK_XBUTTON1 32
  82 #define MK_XBUTTON2 64
  83 #endif
  84
  85 /*
  86  * Private function declarations
  87  */
  88
  89 static gboolean gdk_event_translate (MSG        *msg,
  90                                      gint       *ret_valp);
  91 static void     handle_wm_paint     (MSG        *msg,
  92                                      GdkWindow  *window,
  93                                      gboolean    return_exposes,
  94                                      GdkEvent  **event);
  95
  96 static gboolean gdk_event_prepare  (GSource     *source,
  97                                     gint        *timeout);
  98 static gboolean gdk_event_check    (GSource     *source);
  99 static gboolean gdk_event_dispatch (GSource     *source,
 100                                     GSourceFunc  callback,
 101                                     gpointer     user_data);
 102
 103 static void append_event (GdkEvent *event);
 104 static gboolean is_modally_blocked (GdkWindow   *window);
 105
 106 /* Private variable declarations
 107  */
 108
 109 static GList *client_filters;   /* Filters for client messages */
 110 extern gint       _gdk_input_ignore_core;
 111
 112 static HCURSOR p_grab_cursor;
 113
 114 static GSourceFuncs event_funcs = {
 115   gdk_event_prepare,
 116   gdk_event_check,
 117   gdk_event_dispatch,
 118   NULL
 119 };
 120
 121 GPollFD event_poll_fd;
 122
 123 static GdkWindow *current_toplevel = NULL;
 124 static gint current_x, current_y;
 125 static gint current_root_x, current_root_y;
 126 static UINT client_message;
 127
 128 static UINT got_gdk_events_message;
 129 static HWND modal_win32_dialog = NULL;
 130
 131 #if 0
 132 static HKL latin_locale = NULL;
 133 #endif
 134
 135 static gboolean in_ime_composition = FALSE;
 136 static UINT     modal_timer;
 137 static UINT     sync_timer = 0;
 138
 139 static int debug_indent = 0;
 140
 141 static void
 142 assign_object (gpointer lhsp,
 143                gpointer rhs)
 144 {
 145   if (*(gpointer *)lhsp != rhs)
 146     {
 147       if (*(gpointer *)lhsp != NULL)
 148         g_object_unref (*(gpointer *)lhsp);
 149       *(gpointer *)lhsp = rhs;
 150       if (rhs != NULL)
 151         g_object_ref (rhs);
 152     }
 153 }
 154
 155 static void
 156 track_mouse_event (DWORD dwFlags,
 157                    HWND  hwnd)
 158 {
 159   TRACKMOUSEEVENT tme;
 160
 161   tme.cbSize = sizeof(TRACKMOUSEEVENT);
 162   tme.dwFlags = dwFlags;
 163   tme.hwndTrack = hwnd;
 164   tme.dwHoverTime = HOVER_DEFAULT; /* not used */
 165
 166   if (!TrackMouseEvent (&tme))
 167     WIN32_API_FAILED ("TrackMouseEvent");
 168   else if (dwFlags == TME_LEAVE)
 169     GDK_NOTE (EVENTS, g_print(" (TrackMouseEvent %p)", hwnd));
 170   else if (dwFlags == TME_CANCEL)
 171     GDK_NOTE (EVENTS, g_print(" (cancel TrackMouseEvent %p)", hwnd));
 172 }
 173
 174 gulong
 175 _gdk_win32_get_next_tick (gulong suggested_tick)
 176 {
 177   static gulong cur_tick = 0;
 178
 179   if (suggested_tick == 0)
 180     suggested_tick = GetTickCount ();
 181   if (suggested_tick <= cur_tick)
 182     return cur_tick;
 183   else
 184     return cur_tick = suggested_tick;
 185 }
 186
 187 static void
 188 generate_focus_event (GdkDeviceManager *device_manager,
 189                       GdkWindow        *window,
 190                       gboolean          in)
 191 {
 192   GdkDevice *device;
 193   GdkEvent *event;
 194
 195   device = GDK_DEVICE_MANAGER_WIN32 (device_manager)->core_keyboard;
 196
 197   event = gdk_event_new (GDK_FOCUS_CHANGE);
 198   event->focus_change.window = window;
 199   event->focus_change.in = in;
 200   gdk_event_set_device (event, device);
 201
 202   append_event (event);
 203 }
 204
 205 static void
 206 generate_grab_broken_event (GdkDeviceManager *device_manager,
 207                             GdkWindow        *window,
 208                             gboolean          keyboard,
 209                             GdkWindow        *grab_window)
 210 {
 211   GdkEvent *event = gdk_event_new (GDK_GRAB_BROKEN);
 212   GdkDevice *device;
 213
 214   if (keyboard)
 215     device = GDK_DEVICE_MANAGER_WIN32 (device_manager)->core_keyboard;
 216   else
 217     device = GDK_DEVICE_MANAGER_WIN32 (device_manager)->core_pointer;
 218
 219   event->grab_broken.window = window;
 220   event->grab_broken.send_event = 0;
 221   event->grab_broken.keyboard = keyboard;
 222   event->grab_broken.implicit = FALSE;
 223   event->grab_broken.grab_window = grab_window;
 224   gdk_event_set_device (event, device);
 225
 226   append_event (event);
 227 }
 228
 229 static LRESULT
 230 inner_window_procedure (HWND   hwnd,
 231                         UINT   message,
 232                         WPARAM wparam,
 233                         LPARAM lparam)
 234 {
 235   MSG msg;
 236   DWORD pos;
 237   gint ret_val = 0;
 238
 239   msg.hwnd = hwnd;
 240   msg.message = message;
 241   msg.wParam = wparam;
 242   msg.lParam = lparam;
 243   msg.time = _gdk_win32_get_next_tick (0);
 244   pos = GetMessagePos ();
 245   msg.pt.x = GET_X_LPARAM (pos);
 246   msg.pt.y = GET_Y_LPARAM (pos);
 247
 248   if (gdk_event_translate (&msg, &ret_val))
 249     {
 250       /* If gdk_event_translate() returns TRUE, we return ret_val from
 251        * the window procedure.
 252        */
 253       if (modal_win32_dialog)
 254         PostMessageW (modal_win32_dialog, got_gdk_events_message,
 255                       (WPARAM) 1, 0);
 256       return ret_val;
 257     }
 258   else
 259     {
 260       /* Otherwise call DefWindowProcW(). */
 261       GDK_NOTE (EVENTS, g_print (" DefWindowProcW"));
 262       return DefWindowProcW (hwnd, message, wparam, lparam);
 263     }
 264 }
 265
 266 LRESULT CALLBACK
 267 _gdk_win32_window_procedure (HWND   hwnd,
 268                              UINT   message,
 269                              WPARAM wparam,
 270                              LPARAM lparam)
 271 {
 272   LRESULT retval;
 273
 274   GDK_NOTE (EVENTS, g_print ("%s%*s%s %p",
 275                              (debug_indent > 0 ? "\n" : ""),
 276                              debug_indent, "",
 277                              _gdk_win32_message_to_string (message), hwnd));
 278   debug_indent += 2;
 279   retval = inner_window_procedure (hwnd, message, wparam, lparam);
 280   debug_indent -= 2;
 281
 282   GDK_NOTE (EVENTS, g_print (" => %I64d%s", (gint64) retval, (debug_indent == 0 ? "\n" : "")));
 283
 284   return retval;
 285 }
 286
 287 void
 288 _gdk_events_init (void)
 289 {
 290   GSource *source;
 291
 292 #if 0
 293   int i, j, n;
 294
 295   /* List of languages that use a latin keyboard. Somewhat sorted in
 296    * "order of least surprise", in case we have to load one of them if
 297    * the user only has arabic loaded, for instance.
 298    */
 299   static int latin_languages[] = {
 300     LANG_ENGLISH,
 301     LANG_SPANISH,
 302     LANG_PORTUGUESE,
 303     LANG_FRENCH,
 304     LANG_GERMAN,
 305     /* Rest in numeric order */
 306     LANG_CZECH,
 307     LANG_DANISH,
 308     LANG_FINNISH,
 309     LANG_HUNGARIAN,
 310     LANG_ICELANDIC,
 311     LANG_ITALIAN,
 312     LANG_DUTCH,
 313     LANG_NORWEGIAN,
 314     LANG_POLISH,
 315     LANG_ROMANIAN,
 316     LANG_SLOVAK,
 317     LANG_ALBANIAN,
 318     LANG_SWEDISH,
 319     LANG_TURKISH,
 320     LANG_INDONESIAN,
 321     LANG_SLOVENIAN,
 322     LANG_ESTONIAN,
 323     LANG_LATVIAN,
 324     LANG_LITHUANIAN,
 325     LANG_VIETNAMESE,
 326     LANG_AFRIKAANS,
 327     LANG_FAEROESE
 328 #ifdef LANG_SWAHILI
 329    ,LANG_SWAHILI
 330 #endif
 331   };
 332 #endif
 333
 334   client_message = RegisterWindowMessage ("GDK_WIN32_CLIENT_MESSAGE");
 335   got_gdk_events_message = RegisterWindowMessage ("GDK_WIN32_GOT_EVENTS");
 336
 337 #if 0
 338   /* Check if we have some input locale identifier loaded that uses a
 339    * latin keyboard, to be able to get the virtual-key code for the
 340    * latin characters corresponding to ASCII control characters.
 341    */
 342   if ((n = GetKeyboardLayoutList (0, NULL)) == 0)
 343     WIN32_API_FAILED ("GetKeyboardLayoutList");
 344   else
 345     {
 346       HKL *hkl_list = g_new (HKL, n);
 347       if (GetKeyboardLayoutList (n, hkl_list) == 0)
 348         WIN32_API_FAILED ("GetKeyboardLayoutList");
 349       else
 350         {
 351           for (i = 0; latin_locale == NULL && i < n; i++)
 352             for (j = 0; j < G_N_ELEMENTS (latin_languages); j++)
 353               if (PRIMARYLANGID (LOWORD (hkl_list[i])) == latin_languages[j])
 354                 {
 355                   latin_locale = hkl_list [i];
 356                   break;
 357                 }
 358         }
 359       g_free (hkl_list);
 360     }
 361
 362   if (latin_locale == NULL)
 363     {
 364       /* Try to load a keyboard layout with latin characters then.
 365        */
 366       i = 0;
 367       while (latin_locale == NULL && i < G_N_ELEMENTS (latin_languages))
 368         {
 369           char id[9];
 370           g_sprintf (id, "%08x", MAKELANGID (latin_languages[i++], SUBLANG_DEFAULT));
 371           latin_locale = LoadKeyboardLayout (id, KLF_NOTELLSHELL|KLF_SUBSTITUTE_OK);
 372         }
 373     }
 374
 375   GDK_NOTE (EVENTS, g_print ("latin_locale = %08x\n", (guint) latin_locale));
 376 #endif
 377
 378   source = g_source_new (&event_funcs, sizeof (GSource));
 379   g_source_set_name (source, "GDK Win32 event source");
 380   g_source_set_priority (source, GDK_PRIORITY_EVENTS);
 381
 382 #ifdef G_WITH_CYGWIN
 383   event_poll_fd.fd = open ("/dev/windows", O_RDONLY);
 384   if (event_poll_fd.fd == -1)
 385     g_error ("can't open \"/dev/windows\": %s", g_strerror (errno));
 386 #else
 387   event_poll_fd.fd = G_WIN32_MSG_HANDLE;
 388 #endif
 389   event_poll_fd.events = G_IO_IN;
 390
 391   g_source_add_poll (source, &event_poll_fd);
 392   g_source_set_can_recurse (source, TRUE);
 393   g_source_attach (source, NULL);
 394 }
 395
 396 gboolean
 397 _gdk_win32_display_has_pending (GdkDisplay *display)
 398 {
 399   MSG msg;
 400   return (_gdk_event_queue_find_first (display) ||
 401           (modal_win32_dialog == NULL &&
 402            PeekMessageW (&msg, NULL, 0, 0, PM_NOREMOVE)));
 403 }
 404
 405 #if 0 /* Unused, but might be useful to re-introduce in some debugging output? */
 406
 407 static char *
 408 event_mask_string (GdkEventMask mask)
 409 {
 410   static char bfr[500];
 411   char *p = bfr;
 412
 413   *p = '\0';
 414 #define BIT(x) \
 415   if (mask & GDK_##x##_MASK) \
 416     p += g_sprintf (p, "%s" #x, (p > bfr ? " " : ""))
 417   BIT (EXPOSURE);
 418   BIT (POINTER_MOTION);
 419   BIT (POINTER_MOTION_HINT);
 420   BIT (BUTTON_MOTION);
 421   BIT (BUTTON1_MOTION);
 422   BIT (BUTTON2_MOTION);
 423   BIT (BUTTON3_MOTION);
 424   BIT (BUTTON_PRESS);
 425   BIT (BUTTON_RELEASE);
 426   BIT (KEY_PRESS);
 427   BIT (KEY_RELEASE);
 428   BIT (ENTER_NOTIFY);
 429   BIT (LEAVE_NOTIFY);
 430   BIT (FOCUS_CHANGE);
 431   BIT (STRUCTURE);
 432   BIT (PROPERTY_CHANGE);
 433   BIT (VISIBILITY_NOTIFY);
 434   BIT (PROXIMITY_IN);
 435   BIT (PROXIMITY_OUT);
 436   BIT (SUBSTRUCTURE);
 437   BIT (SCROLL);
 438 #undef BIT
 439
 440   return bfr;
 441 }
 442
 443 #endif
 444
 445 GdkGrabStatus
 446 _gdk_windowing_device_grab (GdkDevice    *device,
 447                             GdkWindow    *window,
 448                             GdkWindow    *native_window,
 449                             gboolean      owner_events,
 450                             GdkEventMask        event_mask,
 451                             GdkWindow    *confine_to,
 452                             GdkCursor    *cursor,
 453                             guint32           time)
 454 {
 455   HCURSOR hcursor;
 456   GdkWin32Cursor *cursor_private;
 457   gint return_val;
 458   GdkWindowImplWin32 *impl = GDK_WINDOW_IMPL_WIN32 (native_window->impl);
 459
 460   g_return_val_if_fail (window != NULL, 0);
 461   g_return_val_if_fail (GDK_IS_WINDOW (window), 0);
 462   g_return_val_if_fail (confine_to == NULL || GDK_IS_WINDOW (confine_to), 0);
 463
 464   cursor_private = (GdkWin32Cursor*) cursor;
 465
 466   if (!cursor)
 467     hcursor = NULL;
 468   else if ((hcursor = CopyCursor (cursor_private->hcursor)) == NULL)
 469     WIN32_API_FAILED ("CopyCursor");
 470
 471   return_val = GDK_DEVICE_GET_CLASS (device)->grab (device,
 472                                                     native_window,
 473                                                     owner_events,
 474                                                     event_mask,
 475                                                     confine_to,
 476                                                     cursor,
 477                                                     time);
 478
 479   /* TODO_CSW: grab brokens, confine window, input_grab */
 480   if (p_grab_cursor != NULL)
 481     {
 482       if (GetCursor () == p_grab_cursor)
 483         SetCursor (NULL);
 484       DestroyCursor (p_grab_cursor);
 485     }
 486
 487   p_grab_cursor = hcursor;
 488
 489   if (p_grab_cursor != NULL)
 490     SetCursor (p_grab_cursor);
 491   else if (impl->hcursor != NULL)
 492     SetCursor (impl->hcursor);
 493   else
 494     SetCursor (LoadCursor (NULL, IDC_ARROW));
 495
 496   return return_val;
 497 }
 498
 499 static GdkWindow *
 500 find_window_for_mouse_event (GdkWindow* reported_window,
 501                              MSG*       msg)
 502 {
 503   HWND hwnd;
 504   POINTS points;
 505   POINT pt;
 506   GdkWindow* other_window = NULL;
 507   GdkDeviceManagerWin32 *device_manager;
 508
 509   device_manager = GDK_DEVICE_MANAGER_WIN32 (gdk_display_get_device_manager (_gdk_display));
 510
 511   if (!_gdk_display_get_last_device_grab (_gdk_display, device_manager->core_pointer))
 512     return reported_window;
 513
 514   points = MAKEPOINTS (msg->lParam);
 515   pt.x = points.x;
 516   pt.y = points.y;
 517   ClientToScreen (msg->hwnd, &pt);
 518
 519   hwnd = WindowFromPoint (pt);
 520
 521   if (hwnd != NULL)
 522     {
 523       RECT rect;
 524
 525       GetClientRect (hwnd, &rect);
 526       ScreenToClient (hwnd, &pt);
 527       if (!PtInRect (&rect, pt))
 528         return _gdk_root;
 529
 530       other_window = gdk_win32_handle_table_lookup ((GdkNativeWindow) hwnd);
 531     }
 532
 533   if (other_window == NULL)
 534     return _gdk_root;
 535
 536   /* need to also adjust the coordinates to the new window */
 537   pt.x = points.x;
 538   pt.y = points.y;
 539   ClientToScreen (msg->hwnd, &pt);
 540   ScreenToClient (GDK_WINDOW_HWND (other_window), &pt);
 541   /* ATTENTION: need to update client coords */
 542   msg->lParam = MAKELPARAM (pt.x, pt.y);
 543
 544   return other_window;
 545 }
 546
 547 void
 548 _gdk_win32_display_add_client_message_filter (GdkDisplay   *display,
 549                                               GdkAtom       message_type,
 550                                               GdkFilterFunc func,
 551                                               gpointer      data)
 552 {
 553   GdkClientFilter *filter = g_new (GdkClientFilter, 1);
 554
 555   filter->type = message_type;
 556   filter->function = func;
 557   filter->data = data;
 558
 559   client_filters = g_list_append (client_filters, filter);
 560 }
 561
 562 static void
 563 build_key_event_state (GdkEvent *event,
 564                        BYTE     *key_state)
 565 {
 566   event->key.state = 0;
 567
 568   if (key_state[VK_SHIFT] & 0x80)
 569     event->key.state |= GDK_SHIFT_MASK;
 570
 571   if (key_state[VK_CAPITAL] & 0x01)
 572     event->key.state |= GDK_LOCK_MASK;
 573
 574   if (key_state[VK_LBUTTON] & 0x80)
 575     event->key.state |= GDK_BUTTON1_MASK;
 576   if (key_state[VK_MBUTTON] & 0x80)
 577     event->key.state |= GDK_BUTTON2_MASK;
 578   if (key_state[VK_RBUTTON] & 0x80)
 579     event->key.state |= GDK_BUTTON3_MASK;
 580   if (key_state[VK_XBUTTON1] & 0x80)
 581     event->key.state |= GDK_BUTTON4_MASK;
 582   if (key_state[VK_XBUTTON2] & 0x80)
 583     event->key.state |= GDK_BUTTON5_MASK;
 584
 585   if (_gdk_keyboard_has_altgr &&
 586       (key_state[VK_LCONTROL] & 0x80) &&
 587       (key_state[VK_RMENU] & 0x80))
 588     {
 589       event->key.group = 1;
 590       event->key.state |= GDK_MOD2_MASK;
 591       if (key_state[VK_RCONTROL] & 0x80)
 592         event->key.state |= GDK_CONTROL_MASK;
 593       if (key_state[VK_LMENU] & 0x80)
 594         event->key.state |= GDK_MOD1_MASK;
 595     }
 596   else
 597     {
 598       event->key.group = 0;
 599       if (key_state[VK_CONTROL] & 0x80)
 600         event->key.state |= GDK_CONTROL_MASK;
 601       if (key_state[VK_MENU] & 0x80)
 602         event->key.state |= GDK_MOD1_MASK;
 603     }
 604 }
 605
 606 static gint
 607 build_pointer_event_state (MSG *msg)
 608 {
 609   gint state;
 610
 611   state = 0;
 612
 613   if (msg->wParam & MK_CONTROL)
 614     state |= GDK_CONTROL_MASK;
 615
 616   if ((msg->message != WM_LBUTTONDOWN &&
 617        (msg->wParam & MK_LBUTTON)) ||
 618       msg->message == WM_LBUTTONUP)
 619     state |= GDK_BUTTON1_MASK;
 620
 621   if ((msg->message != WM_MBUTTONDOWN &&
 622        (msg->wParam & MK_MBUTTON)) ||
 623       msg->message == WM_MBUTTONUP)
 624     state |= GDK_BUTTON2_MASK;
 625
 626   if ((msg->message != WM_RBUTTONDOWN &&
 627        (msg->wParam & MK_RBUTTON)) ||
 628       msg->message == WM_RBUTTONUP)
 629     state |= GDK_BUTTON3_MASK;
 630
 631   if (((msg->message != WM_XBUTTONDOWN || HIWORD (msg->wParam) != XBUTTON1) &&
 632        (msg->wParam & MK_XBUTTON1)) ||
 633       (msg->message == WM_XBUTTONUP && HIWORD (msg->wParam) == XBUTTON1))
 634     state |= GDK_BUTTON4_MASK;
 635
 636   if (((msg->message != WM_XBUTTONDOWN || HIWORD (msg->wParam) != XBUTTON2) &&
 637        (msg->wParam & MK_XBUTTON2)) ||
 638       (msg->message == WM_XBUTTONUP && HIWORD (msg->wParam) == XBUTTON2))
 639     state |= GDK_BUTTON5_MASK;
 640
 641   if (msg->wParam & MK_SHIFT)
 642     state |= GDK_SHIFT_MASK;
 643
 644   if (GetKeyState (VK_MENU) < 0)
 645     state |= GDK_MOD1_MASK;
 646
 647   if (GetKeyState (VK_CAPITAL) & 0x1)
 648     state |= GDK_LOCK_MASK;
 649
 650   return state;
 651 }
 652
 653 static void
 654 build_wm_ime_composition_event (GdkEvent *event,
 655                                 MSG      *msg,
 656                                 wchar_t   wc,
 657                                 BYTE     *key_state)
 658 {
 659   event->key.time = _gdk_win32_get_next_tick (msg->time);
 660
 661   build_key_event_state (event, key_state);
 662
 663   event->key.hardware_keycode = 0; /* FIXME: What should it be? */
 664   event->key.string = NULL;
 665   event->key.length = 0;
 666   event->key.keyval = gdk_unicode_to_keyval (wc);
 667 }
 668
 669 #ifdef G_ENABLE_DEBUG
 670
 671 static void
 672 print_event_state (guint state)
 673 {
 674 #define CASE(bit) if (state & GDK_ ## bit ## _MASK) g_print (#bit " ");
 675   CASE (SHIFT);
 676   CASE (LOCK);
 677   CASE (CONTROL);
 678   CASE (MOD1);
 679   CASE (MOD2);
 680   CASE (MOD3);
 681   CASE (MOD4);
 682   CASE (MOD5);
 683   CASE (BUTTON1);
 684   CASE (BUTTON2);
 685   CASE (BUTTON3);
 686   CASE (BUTTON4);
 687   CASE (BUTTON5);
 688 #undef CASE
 689 }
 690
 691 void
 692 _gdk_win32_print_event (const GdkEvent *event)
 693 {
 694   gchar *escaped, *kvname;
 695   gchar *selection_name, *target_name, *property_name;
 696
 697   g_print ("%s%*s===> ", (debug_indent > 0 ? "\n" : ""), debug_indent, "");
 698   switch (event->any.type)
 699     {
 700 #define CASE(x) case x: g_print (#x); break;
 701     CASE (GDK_NOTHING);
 702     CASE (GDK_DELETE);
 703     CASE (GDK_DESTROY);
 704     CASE (GDK_EXPOSE);
 705     CASE (GDK_MOTION_NOTIFY);
 706     CASE (GDK_BUTTON_PRESS);
 707     CASE (GDK_2BUTTON_PRESS);
 708     CASE (GDK_3BUTTON_PRESS);
 709     CASE (GDK_BUTTON_RELEASE);
 710     CASE (GDK_KEY_PRESS);
 711     CASE (GDK_KEY_RELEASE);
 712     CASE (GDK_ENTER_NOTIFY);
 713     CASE (GDK_LEAVE_NOTIFY);
 714     CASE (GDK_FOCUS_CHANGE);
 715     CASE (GDK_CONFIGURE);
 716     CASE (GDK_MAP);
 717     CASE (GDK_UNMAP);
 718     CASE (GDK_PROPERTY_NOTIFY);
 719     CASE (GDK_SELECTION_CLEAR);
 720     CASE (GDK_SELECTION_REQUEST);
 721     CASE (GDK_SELECTION_NOTIFY);
 722     CASE (GDK_PROXIMITY_IN);
 723     CASE (GDK_PROXIMITY_OUT);
 724     CASE (GDK_DRAG_ENTER);
 725     CASE (GDK_DRAG_LEAVE);
 726     CASE (GDK_DRAG_MOTION);
 727     CASE (GDK_DRAG_STATUS);
 728     CASE (GDK_DROP_START);
 729     CASE (GDK_DROP_FINISHED);
 730     CASE (GDK_CLIENT_EVENT);
 731     CASE (GDK_VISIBILITY_NOTIFY);
 732     CASE (GDK_SCROLL);
 733     CASE (GDK_WINDOW_STATE);
 734     CASE (GDK_SETTING);
 735     CASE (GDK_OWNER_CHANGE);
 736     CASE (GDK_GRAB_BROKEN);
 737 #undef CASE
 738     default: g_assert_not_reached ();
 739     }
 740
 741   g_print (" %p ", event->any.window ? GDK_WINDOW_HWND (event->any.window) : NULL);
 742
 743   switch (event->any.type)
 744     {
 745     case GDK_EXPOSE:
 746       g_print ("%s %d",
 747                _gdk_win32_gdkrectangle_to_string (&event->expose.area),
 748                event->expose.count);
 749       break;
 750     case GDK_MOTION_NOTIFY:
 751       g_print ("(%.4g,%.4g) (%.4g,%.4g) %s",
 752                event->motion.x, event->motion.y,
 753                event->motion.x_root, event->motion.y_root,
 754                event->motion.is_hint ? "HINT " : "");
 755       print_event_state (event->motion.state);
 756       break;
 757     case GDK_BUTTON_PRESS:
 758     case GDK_2BUTTON_PRESS:
 759     case GDK_3BUTTON_PRESS:
 760     case GDK_BUTTON_RELEASE:
 761       g_print ("%d (%.4g,%.4g) (%.4g,%.4g) ",
 762                event->button.button,
 763                event->button.x, event->button.y,
 764                event->button.x_root, event->button.y_root);
 765       print_event_state (event->button.state);
 766       break;
 767     case GDK_KEY_PRESS:
 768     case GDK_KEY_RELEASE:
 769       if (event->key.length == 0)
 770         escaped = g_strdup ("");
 771       else
 772         escaped = g_strescape (event->key.string, NULL);
 773       kvname = gdk_keyval_name (event->key.keyval);
 774       g_print ("%#.02x group:%d %s %d:\"%s\" ",
 775                event->key.hardware_keycode, event->key.group,
 776                (kvname ? kvname : "??"),
 777                event->key.length,
 778                escaped);
 779       g_free (escaped);
 780       print_event_state (event->key.state);
 781       break;
 782     case GDK_ENTER_NOTIFY:
 783     case GDK_LEAVE_NOTIFY:
 784       g_print ("%p (%.4g,%.4g) (%.4g,%.4g) %s %s%s",
 785                event->crossing.subwindow == NULL ? NULL : GDK_WINDOW_HWND (event->crossing.subwindow),
 786                event->crossing.x, event->crossing.y,
 787                event->crossing.x_root, event->crossing.y_root,
 788                (event->crossing.mode == GDK_CROSSING_NORMAL ? "NORMAL" :
 789                 (event->crossing.mode == GDK_CROSSING_GRAB ? "GRAB" :
 790                  (event->crossing.mode == GDK_CROSSING_UNGRAB ? "UNGRAB" :
 791                   "???"))),
 792                (event->crossing.detail == GDK_NOTIFY_ANCESTOR ? "ANCESTOR" :
 793                 (event->crossing.detail == GDK_NOTIFY_VIRTUAL ? "VIRTUAL" :
 794                  (event->crossing.detail == GDK_NOTIFY_INFERIOR ? "INFERIOR" :
 795                   (event->crossing.detail == GDK_NOTIFY_NONLINEAR ? "NONLINEAR" :
 796                    (event->crossing.detail == GDK_NOTIFY_NONLINEAR_VIRTUAL ? "NONLINEAR_VIRTUAL" :
 797                     (event->crossing.detail == GDK_NOTIFY_UNKNOWN ? "UNKNOWN" :
 798                      "???")))))),
 799                event->crossing.focus ? " FOCUS" : "");
 800       print_event_state (event->crossing.state);
 801       break;
 802     case GDK_FOCUS_CHANGE:
 803       g_print ("%s", (event->focus_change.in ? "IN" : "OUT"));
 804       break;
 805     case GDK_CONFIGURE:
 806       g_print ("x:%d y:%d w:%d h:%d",
 807                event->configure.x, event->configure.y,
 808                event->configure.width, event->configure.height);
 809       break;
 810     case GDK_SELECTION_CLEAR:
 811     case GDK_SELECTION_REQUEST:
 812     case GDK_SELECTION_NOTIFY:
 813       selection_name = gdk_atom_name (event->selection.selection);
 814       target_name = gdk_atom_name (event->selection.target);
 815       property_name = gdk_atom_name (event->selection.property);
 816       g_print ("sel:%s tgt:%s prop:%s",
 817                selection_name, target_name, property_name);
 818       g_free (selection_name);
 819       g_free (target_name);
 820       g_free (property_name);
 821       break;
 822     case GDK_DRAG_ENTER:
 823     case GDK_DRAG_LEAVE:
 824     case GDK_DRAG_MOTION:
 825     case GDK_DRAG_STATUS:
 826     case GDK_DROP_START:
 827     case GDK_DROP_FINISHED:
 828       if (event->dnd.context != NULL)
 829         g_print ("ctx:%p: %s %s src:%p dest:%p",
 830                  event->dnd.context,
 831                  _gdk_win32_drag_protocol_to_string (event->dnd.context->protocol),
 832                  event->dnd.context->is_source ? "SOURCE" : "DEST",
 833                  event->dnd.context->source_window == NULL ? NULL : GDK_WINDOW_HWND (event->dnd.context->source_window),
 834                  event->dnd.context->dest_window == NULL ? NULL : GDK_WINDOW_HWND (event->dnd.context->dest_window));
 835       break;
 836     case GDK_CLIENT_EVENT:
 837       g_print ("%s %d %ld %ld %ld %ld %ld",
 838                gdk_atom_name (event->client.message_type),
 839                event->client.data_format,
 840                event->client.data.l[0],
 841                event->client.data.l[1],
 842                event->client.data.l[2],
 843                event->client.data.l[3],
 844                event->client.data.l[4]);
 845       break;
 846     case GDK_SCROLL:
 847       g_print ("(%.4g,%.4g) (%.4g,%.4g) %s ",
 848                event->scroll.x, event->scroll.y,
 849                event->scroll.x_root, event->scroll.y_root,
 850                (event->scroll.direction == GDK_SCROLL_UP ? "UP" :
 851                 (event->scroll.direction == GDK_SCROLL_DOWN ? "DOWN" :
 852                  (event->scroll.direction == GDK_SCROLL_LEFT ? "LEFT" :
 853                   (event->scroll.direction == GDK_SCROLL_RIGHT ? "RIGHT" :
 854                    "???")))));
 855       print_event_state (event->scroll.state);
 856       break;
 857     case GDK_WINDOW_STATE:
 858       g_print ("%s: %s",
 859                _gdk_win32_window_state_to_string (event->window_state.changed_mask),
 860                _gdk_win32_window_state_to_string (event->window_state.new_window_state));
 861     case GDK_SETTING:
 862       g_print ("%s: %s",
 863                (event->setting.action == GDK_SETTING_ACTION_NEW ? "NEW" :
 864                 (event->setting.action == GDK_SETTING_ACTION_CHANGED ? "CHANGED" :
 865                  (event->setting.action == GDK_SETTING_ACTION_DELETED ? "DELETED" :
 866                   "???"))),
 867                (event->setting.name ? event->setting.name : "NULL"));
 868     case GDK_GRAB_BROKEN:
 869       g_print ("%s %s %p",
 870                (event->grab_broken.keyboard ? "KEYBOARD" : "POINTER"),
 871                (event->grab_broken.implicit ? "IMPLICIT" : "EXPLICIT"),
 872                (event->grab_broken.grab_window ? GDK_WINDOW_HWND (event->grab_broken.grab_window) : 0));
 873     default:
 874       /* Nothing */
 875       break;
 876     }
 877   g_print ("%s", (debug_indent == 0 ? "\n" : ""));
 878 }
 879
 880 static char *
 881 decode_key_lparam (LPARAM lParam)
 882 {
 883   static char buf[100];
 884   char *p = buf;
 885
 886   if (HIWORD (lParam) & KF_UP)
 887     p += g_sprintf (p, "KF_UP ");
 888   if (HIWORD (lParam) & KF_REPEAT)
 889     p += g_sprintf (p, "KF_REPEAT ");
 890   if (HIWORD (lParam) & KF_ALTDOWN)
 891     p += g_sprintf (p, "KF_ALTDOWN ");
 892   if (HIWORD (lParam) & KF_EXTENDED)
 893     p += g_sprintf (p, "KF_EXTENDED ");
 894   p += g_sprintf (p, "sc:%d rep:%d", LOBYTE (HIWORD (lParam)), LOWORD (lParam));
 895
 896   return buf;
 897 }
 898
 899 #endif
 900
 901 static void
 902 fixup_event (GdkEvent *event)
 903 {
 904   if (event->any.window)
 905     g_object_ref (event->any.window);
 906   if (((event->any.type == GDK_ENTER_NOTIFY) ||
 907        (event->any.type == GDK_LEAVE_NOTIFY)) &&
 908       (event->crossing.subwindow != NULL))
 909     g_object_ref (event->crossing.subwindow);
 910   event->any.send_event = InSendMessage ();
 911 }
 912
 913 static void
 914 append_event (GdkEvent *event)
 915 {
 916   GList *link;
 917
 918   fixup_event (event);
 919 #if 1
 920   link = _gdk_event_queue_append (_gdk_display, event);
 921   GDK_NOTE (EVENTS, _gdk_win32_print_event (event));
 922   /* event morphing, the passed in may not be valid afterwards */
 923   _gdk_windowing_got_event (_gdk_display, link, event, 0);
 924 #else
 925   _gdk_event_queue_append (_gdk_display, event);
 926   GDK_NOTE (EVENTS, _gdk_win32_print_event (event));
 927 #endif
 928 }
 929
 930 static void
 931 fill_key_event_string (GdkEvent *event)
 932 {
 933   gunichar c;
 934   gchar buf[256];
 935
 936   /* Fill in event->string crudely, since various programs
 937    * depend on it.
 938    */
 939
 940   c = 0;
 941   if (event->key.keyval != GDK_KEY_VoidSymbol)
 942     c = gdk_keyval_to_unicode (event->key.keyval);
 943
 944   if (c)
 945     {
 946       gsize bytes_written;
 947       gint len;
 948
 949       /* Apply the control key - Taken from Xlib
 950        */
 951       if (event->key.state & GDK_CONTROL_MASK)
 952         {
 953           if ((c >= '@' && c < '\177') || c == ' ')
 954             c &= 0x1F;
 955           else if (c == '2')
 956             {
 957               event->key.string = g_memdup ("\0\0", 2);
 958               event->key.length = 1;
 959               return;
 960             }
 961           else if (c >= '3' && c <= '7')
 962             c -= ('3' - '\033');
 963           else if (c == '8')
 964             c = '\177';
 965           else if (c == '/')
 966             c = '_' & 0x1F;
 967         }
 968
 969       len = g_unichar_to_utf8 (c, buf);
 970       buf[len] = '\0';
 971
 972       event->key.string = g_locale_from_utf8 (buf, len,
 973                                               NULL, &bytes_written,
 974                                               NULL);
 975       if (event->key.string)
 976         event->key.length = bytes_written;
 977     }
 978   else if (event->key.keyval == GDK_KEY_Escape)
 979     {
 980       event->key.length = 1;
 981       event->key.string = g_strdup ("\033");
 982     }
 983   else if (event->key.keyval == GDK_KEY_Return ||
 984            event->key.keyval == GDK_KEY_KP_Enter)
 985     {
 986       event->key.length = 1;
 987       event->key.string = g_strdup ("\r");
 988     }
 989
 990   if (!event->key.string)
 991     {
 992       event->key.length = 0;
 993       event->key.string = g_strdup ("");
 994     }
 995 }
 996
 997 static GdkFilterReturn
 998 apply_event_filters (GdkWindow  *window,
 999                      MSG        *msg,
1000                      GList     **filters)
1001 {
1002   GdkFilterReturn result = GDK_FILTER_CONTINUE;
1003   GdkEvent *event;
1004   GList *node;
1005   GList *tmp_list;
1006
1007   event = gdk_event_new (GDK_NOTHING);
1008   if (window != NULL)
1009     event->any.window = g_object_ref (window);
1010   ((GdkEventPrivate *)event)->flags |= GDK_EVENT_PENDING;
1011
1012   /* I think GdkFilterFunc semantics require the passed-in event
1013    * to already be in the queue. The filter func can generate
1014    * more events and append them after it if it likes.
1015    */
1016   node = _gdk_event_queue_append (_gdk_display, event);
1017
1018   tmp_list = *filters;
1019   while (tmp_list)
1020     {
1021       GdkEventFilter *filter = (GdkEventFilter *) tmp_list->data;
1022       GList *node;
1023
1024       if ((filter->flags & GDK_EVENT_FILTER_REMOVED) != 0)
1025         {
1026           tmp_list = tmp_list->next;
1027           continue;
1028         }
1029
1030       filter->ref_count++;
1031       result = filter->function (msg, event, filter->data);
1032
1033       /* get the next node after running the function since the
1034          function may add or remove a next node */
1035       node = tmp_list;
1036       tmp_list = tmp_list->next;
1037
1038       filter->ref_count--;
1039       if (filter->ref_count == 0)
1040         {
1041           *filters = g_list_remove_link (*filters, node);
1042           g_list_free_1 (node);
1043           g_free (filter);
1044         }
1045
1046       if (result !=  GDK_FILTER_CONTINUE)
1047         break;
1048     }
1049
1050   if (result == GDK_FILTER_CONTINUE || result == GDK_FILTER_REMOVE)
1051     {
1052       _gdk_event_queue_remove_link (_gdk_display, node);
1053       g_list_free_1 (node);
1054       gdk_event_free (event);
1055     }
1056   else /* GDK_FILTER_TRANSLATE */
1057     {
1058       ((GdkEventPrivate *)event)->flags &= ~GDK_EVENT_PENDING;
1059       fixup_event (event);
1060       GDK_NOTE (EVENTS, _gdk_win32_print_event (event));
1061     }
1062   return result;
1063 }
1064
1065 /*
1066  * On Windows, transient windows will not have their own taskbar entries.
1067  * Because of this, we must hide and restore groups of transients in both
1068  * directions.  That is, all transient children must be hidden or restored
1069  * with this window, but if this window's transient owner also has a
1070  * transient owner then this window's transient owner must be hidden/restored
1071  * with this one.  And etc, up the chain until we hit an ancestor that has no
1072  * transient owner.
1073  *
1074  * It would be a good idea if applications don't chain transient windows
1075  * together.  There's a limit to how much evil GTK can try to shield you
1076  * from.
1077  */
1078 static void
1079 show_window_recurse (GdkWindow *window, gboolean hide_window)
1080 {
1081   GdkWindowImplWin32 *impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
1082   GSList *children = impl->transient_children;
1083   GdkWindow *child = NULL;
1084
1085   if (!impl->changing_state)
1086     {
1087       impl->changing_state = TRUE;
1088
1089       if (children != NULL)
1090         {
1091           while (children != NULL)
1092             {
1093               child = children->data;
1094               show_window_recurse (child, hide_window);
1095
1096               children = g_slist_next (children);
1097             }
1098         }
1099
1100       if (GDK_WINDOW_IS_MAPPED (window))
1101         {
1102           if (!hide_window)
1103             {
1104               if (gdk_window_get_state (window) & GDK_WINDOW_STATE_ICONIFIED)
1105                 {
1106                   if (gdk_window_get_state (window) & GDK_WINDOW_STATE_MAXIMIZED)
1107                     {
1108                       ShowWindow (GDK_WINDOW_HWND (window), SW_SHOWMAXIMIZED);
1109                     }
1110                   else
1111                     {
1112                       ShowWindow (GDK_WINDOW_HWND (window), SW_RESTORE);
1113                     }
1114                 }
1115             }
1116           else
1117             {
1118               ShowWindow (GDK_WINDOW_HWND (window), SW_MINIMIZE);
1119             }
1120         }
1121
1122       impl->changing_state = FALSE;
1123     }
1124 }
1125
1126 static void
1127 do_show_window (GdkWindow *window, gboolean hide_window)
1128 {
1129   GdkWindow *tmp_window = NULL;
1130   GdkWindowImplWin32 *tmp_impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
1131
1132   if (!tmp_impl->changing_state)
1133     {
1134       /* Find the top-level window in our transient chain. */
1135       while (tmp_impl->transient_owner != NULL)
1136         {
1137           tmp_window = tmp_impl->transient_owner;
1138           tmp_impl = GDK_WINDOW_IMPL_WIN32 (tmp_window->impl);
1139         }
1140
1141       /* If we couldn't find one, use the window provided. */
1142       if (tmp_window == NULL)
1143         {
1144           tmp_window = window;
1145         }
1146
1147       /* Recursively show/hide every window in the chain. */
1148       if (tmp_window != window)
1149         {
1150           show_window_recurse (tmp_window, hide_window);
1151         }
1152     }
1153 }
1154
1155 static void
1156 synthesize_enter_or_leave_event (GdkWindow        *window,
1157                                  MSG              *msg,
1158                                  GdkEventType      type,
1159                                  GdkCrossingMode   mode,
1160                                  GdkNotifyType     detail)
1161 {
1162   GdkEvent *event;
1163   POINT pt;
1164
1165   pt = msg->pt;
1166   ScreenToClient (GDK_WINDOW_HWND (window), &pt);
1167
1168   event = gdk_event_new (type);
1169   event->crossing.window = window;
1170   event->crossing.subwindow = NULL;
1171   event->crossing.time = _gdk_win32_get_next_tick (msg->time);
1172   event->crossing.x = pt.x;
1173   event->crossing.y = pt.y;
1174   event->crossing.x_root = msg->pt.x + _gdk_offset_x;
1175   event->crossing.y_root = msg->pt.y + _gdk_offset_y;
1176   event->crossing.mode = mode;
1177   event->crossing.detail = detail;
1178   event->crossing.focus = TRUE; /* FIXME: Set correctly */
1179   event->crossing.state = 0;    /* FIXME: Set correctly */
1180   gdk_event_set_device (event, _gdk_display->core_pointer);
1181
1182   append_event (event);
1183
1184   if (type == GDK_ENTER_NOTIFY &&
1185       window->extension_events != 0)
1186     _gdk_device_wintab_update_window_coords (window);
1187 }
1188
1189 /* The check_extended flag controls whether to check if the windows want
1190  * events from extended input devices and if the message should be skipped
1191  * because an extended input device is active
1192  */
1193 static gboolean
1194 propagate (GdkWindow  **window,
1195            MSG         *msg,
1196            GdkWindow   *grab_window,
1197            gboolean     grab_owner_events,
1198            gint         grab_mask,
1199            gboolean   (*doesnt_want_it) (gint mask,
1200                                          MSG *msg),
1201            gboolean     check_extended)
1202 {
1203   if (grab_window != NULL && !grab_owner_events)
1204     {
1205       /* Event source is grabbed with owner_events FALSE */
1206
1207       /* See if the event should be ignored because an extended input
1208        * device is used
1209        */
1210       if (check_extended &&
1211           grab_window->extension_events != 0 &&
1212           _gdk_input_ignore_core)
1213         {
1214           GDK_NOTE (EVENTS, g_print (" (ignored for grabber)"));
1215           return FALSE;
1216         }
1217       if ((*doesnt_want_it) (grab_mask, msg))
1218         {
1219           GDK_NOTE (EVENTS, g_print (" (grabber doesn't want it)"));
1220           return FALSE;
1221         }
1222       else
1223         {
1224           GDK_NOTE (EVENTS, g_print (" (to grabber)"));
1225           assign_object (window, grab_window);
1226           return TRUE;
1227         }
1228     }
1229
1230   /* If we come here, we know that if grab_window != NULL then
1231    * grab_owner_events is TRUE
1232    */
1233   while (TRUE)
1234     {
1235       if (check_extended &&
1236           (*window)->extension_events != 0 &&
1237           _gdk_input_ignore_core)
1238         {
1239           GDK_NOTE (EVENTS, g_print (" (ignored)"));
1240           return FALSE;
1241         }
1242       if ((*doesnt_want_it) ((*window)->event_mask, msg))
1243         {
1244           /* Owner doesn't want it, propagate to parent. */
1245           GdkWindow *parent = gdk_window_get_parent (*window);
1246           if (parent == _gdk_root || parent == NULL)
1247             {
1248               /* No parent; check if grabbed */
1249               if (grab_window != NULL)
1250                 {
1251                   /* Event source is grabbed with owner_events TRUE */
1252
1253                   if (check_extended &&
1254                       grab_window->extension_events != 0 &&
1255                       _gdk_input_ignore_core)
1256                     {
1257                       GDK_NOTE (EVENTS, g_print (" (ignored for grabber)"));
1258                       return FALSE;
1259                     }
1260                   if ((*doesnt_want_it) (grab_mask, msg))
1261                     {
1262                       /* Grabber doesn't want it either */
1263                       GDK_NOTE (EVENTS, g_print (" (grabber doesn't want it)"));
1264                       return FALSE;
1265                     }
1266                   else
1267                     {
1268                       /* Grabbed! */
1269                       GDK_NOTE (EVENTS, g_print (" (to grabber)"));
1270                       assign_object (window, grab_window);
1271                       return TRUE;
1272                     }
1273                 }
1274               else
1275                 {
1276                   GDK_NOTE (EVENTS, g_print (" (undelivered)"));
1277                   return FALSE;
1278                 }
1279             }
1280           else
1281             {
1282               assign_object (window, parent);
1283               /* The only branch where we actually continue the loop */
1284             }
1285         }
1286       else
1287         return TRUE;
1288     }
1289 }
1290
1291 static gboolean
1292 doesnt_want_key (gint mask,
1293                  MSG *msg)
1294 {
1295   return (((msg->message == WM_KEYUP || msg->message == WM_SYSKEYUP) &&
1296            !(mask & GDK_KEY_RELEASE_MASK)) ||
1297           ((msg->message == WM_KEYDOWN || msg->message == WM_SYSKEYDOWN) &&
1298            !(mask & GDK_KEY_PRESS_MASK)));
1299 }
1300
1301 static gboolean
1302 doesnt_want_char (gint mask,
1303                   MSG *msg)
1304 {
1305   return !(mask & (GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK));
1306 }
1307
1308 static void
1309 handle_configure_event (MSG       *msg,
1310                         GdkWindow *window)
1311 {
1312   RECT client_rect;
1313   POINT point;
1314
1315   GetClientRect (msg->hwnd, &client_rect);
1316   point.x = client_rect.left; /* always 0 */
1317   point.y = client_rect.top;
1318
1319   /* top level windows need screen coords */
1320   if (gdk_window_get_parent (window) == _gdk_root)
1321     {
1322       ClientToScreen (msg->hwnd, &point);
1323       point.x += _gdk_offset_x;
1324       point.y += _gdk_offset_y;
1325     }
1326
1327   window->width = client_rect.right - client_rect.left;
1328   window->height = client_rect.bottom - client_rect.top;
1329
1330   window->x = point.x;
1331   window->y = point.y;
1332
1333   _gdk_window_update_size (window);
1334
1335   if (window->event_mask & GDK_STRUCTURE_MASK)
1336     {
1337       GdkEvent *event = gdk_event_new (GDK_CONFIGURE);
1338
1339       event->configure.window = window;
1340
1341       event->configure.width = client_rect.right - client_rect.left;
1342       event->configure.height = client_rect.bottom - client_rect.top;
1343
1344       event->configure.x = point.x;
1345       event->configure.y = point.y;
1346
1347       append_event (event);
1348     }
1349 }
1350
1351 cairo_region_t *
1352 _gdk_win32_hrgn_to_region (HRGN hrgn)
1353 {
1354   RGNDATA *rgndata;
1355   RECT *rects;
1356   cairo_region_t *result;
1357   gint nbytes;
1358   guint i;
1359
1360   if ((nbytes = GetRegionData (hrgn, 0, NULL)) == 0)
1361     {
1362       WIN32_GDI_FAILED ("GetRegionData");
1363       return NULL;
1364     }
1365
1366   rgndata = (RGNDATA *) g_malloc (nbytes);
1367
1368   if (GetRegionData (hrgn, nbytes, rgndata) == 0)
1369     {
1370       WIN32_GDI_FAILED ("GetRegionData");
1371       g_free (rgndata);
1372       return NULL;
1373     }
1374
1375   result = cairo_region_create ();
1376   rects = (RECT *) rgndata->Buffer;
1377   for (i = 0; i < rgndata->rdh.nCount; i++)
1378     {
1379       GdkRectangle r;
1380
1381       r.x = rects[i].left;
1382       r.y = rects[i].top;
1383       r.width = rects[i].right - r.x;
1384       r.height = rects[i].bottom - r.y;
1385
1386       cairo_region_union_rectangle (result, &r);
1387     }
1388
1389   g_free (rgndata);
1390
1391   return result;
1392 }
1393
1394 static void
1395 adjust_drag (LONG *drag,
1396              LONG  curr,
1397              gint  inc)
1398 {
1399   if (*drag > curr)
1400     *drag = curr + ((*drag + inc/2 - curr) / inc) * inc;
1401   else
1402     *drag = curr - ((curr - *drag + inc/2) / inc) * inc;
1403 }
1404
1405 static void
1406 handle_wm_paint (MSG        *msg,
1407                  GdkWindow  *window,
1408                  gboolean    return_exposes,
1409                  GdkEvent  **event)
1410 {
1411   HRGN hrgn = CreateRectRgn (0, 0, 0, 0);
1412   HDC hdc;
1413   PAINTSTRUCT paintstruct;
1414   cairo_region_t *update_region;
1415
1416   if (GetUpdateRgn (msg->hwnd, hrgn, FALSE) == ERROR)
1417     {
1418       WIN32_GDI_FAILED ("GetUpdateRgn");
1419       DeleteObject (hrgn);
1420       return;
1421     }
1422
1423   hdc = BeginPaint (msg->hwnd, &paintstruct);
1424
1425   GDK_NOTE (EVENTS, g_print (" %s %s dc %p%s",
1426                              _gdk_win32_rect_to_string (&paintstruct.rcPaint),
1427                              (paintstruct.fErase ? "erase" : ""),
1428                              hdc,
1429                              (return_exposes ? " return_exposes" : "")));
1430
1431   EndPaint (msg->hwnd, &paintstruct);
1432
1433   if ((paintstruct.rcPaint.right == paintstruct.rcPaint.left) ||
1434       (paintstruct.rcPaint.bottom == paintstruct.rcPaint.top))
1435     {
1436       GDK_NOTE (EVENTS, g_print (" (empty paintstruct, ignored)"));
1437       DeleteObject (hrgn);
1438       return;
1439     }
1440
1441   if (return_exposes)
1442     {
1443       if (!GDK_WINDOW_DESTROYED (window))
1444         {
1445           GList *list = _gdk_display->queued_events;
1446
1447           *event = gdk_event_new (GDK_EXPOSE);
1448           (*event)->expose.window = window;
1449           (*event)->expose.area.x = paintstruct.rcPaint.left;
1450           (*event)->expose.area.y = paintstruct.rcPaint.top;
1451           (*event)->expose.area.width = paintstruct.rcPaint.right - paintstruct.rcPaint.left;
1452           (*event)->expose.area.height = paintstruct.rcPaint.bottom - paintstruct.rcPaint.top;
1453           (*event)->expose.region = _gdk_win32_hrgn_to_region (hrgn);
1454           (*event)->expose.count = 0;
1455
1456           while (list != NULL)
1457             {
1458               GdkEventPrivate *evp = list->data;
1459
1460               if (evp->event.any.type == GDK_EXPOSE &&
1461                   evp->event.any.window == window &&
1462                   !(evp->flags & GDK_EVENT_PENDING))
1463                 evp->event.expose.count++;
1464
1465               list = list->next;
1466             }
1467         }
1468
1469       DeleteObject (hrgn);
1470       return;
1471     }
1472
1473   update_region = _gdk_win32_hrgn_to_region (hrgn);
1474   if (!cairo_region_is_empty (update_region))
1475     _gdk_window_invalidate_for_expose (window, update_region);
1476   cairo_region_destroy (update_region);
1477
1478   DeleteObject (hrgn);
1479 }
1480
1481 static VOID CALLBACK
1482 modal_timer_proc (HWND     hwnd,
1483                   UINT     msg,
1484                   UINT_PTR id,
1485                   DWORD    time)
1486 {
1487   int arbitrary_limit = 1;
1488
1489   while (_modal_operation_in_progress &&
1490          g_main_context_pending (NULL) &&
1491          arbitrary_limit--)
1492     g_main_context_iteration (NULL, FALSE);
1493 }
1494
1495 void
1496 _gdk_win32_begin_modal_call (void)
1497 {
1498   g_assert (!_modal_operation_in_progress);
1499
1500   _modal_operation_in_progress = TRUE;
1501
1502   modal_timer = SetTimer (NULL, 0, 10, modal_timer_proc);
1503   if (modal_timer == 0)
1504     WIN32_API_FAILED ("SetTimer");
1505 }
1506
1507 void
1508 _gdk_win32_end_modal_call (void)
1509 {
1510   g_assert (_modal_operation_in_progress);
1511
1512   _modal_operation_in_progress = FALSE;
1513
1514   if (modal_timer != 0)
1515     {
1516       API_CALL (KillTimer, (NULL, modal_timer));
1517       modal_timer = 0;
1518    }
1519 }
1520
1521 static VOID CALLBACK
1522 sync_timer_proc (HWND     hwnd,
1523                  UINT     msg,
1524                  UINT_PTR id,
1525                  DWORD    time)
1526 {
1527   MSG message;
1528   if (PeekMessageW (&message, hwnd, WM_PAINT, WM_PAINT, PM_REMOVE))
1529     {
1530       return;
1531     }
1532
1533   RedrawWindow (hwnd, NULL, NULL, RDW_INVALIDATE|RDW_UPDATENOW|RDW_ALLCHILDREN);
1534
1535   KillTimer (hwnd, sync_timer);
1536 }
1537
1538 static void
1539 handle_display_change (void)
1540 {
1541   _gdk_monitor_init ();
1542   _gdk_root_window_size_init ();
1543   g_signal_emit_by_name (_gdk_screen, "size_changed");
1544 }
1545
1546 static void
1547 generate_button_event (GdkEventType      type,
1548                        gint              button,
1549                        GdkWindow        *window,
1550                        MSG              *msg)
1551 {
1552   GdkEvent *event = gdk_event_new (type);
1553
1554   event->button.window = window;
1555   event->button.time = _gdk_win32_get_next_tick (msg->time);
1556   event->button.x = current_x = (gint16) GET_X_LPARAM (msg->lParam);
1557   event->button.y = current_y = (gint16) GET_Y_LPARAM (msg->lParam);
1558   event->button.x_root = msg->pt.x + _gdk_offset_x;
1559   event->button.y_root = msg->pt.y + _gdk_offset_y;
1560   event->button.axes = NULL;
1561   event->button.state = build_pointer_event_state (msg);
1562   event->button.button = button;
1563   gdk_event_set_device (event, _gdk_display->core_pointer);
1564
1565   append_event (event);
1566 }
1567
1568 static void
1569 ensure_stacking_on_unminimize (MSG *msg)
1570 {
1571   HWND rover;
1572   HWND lowest_transient = NULL;
1573
1574   rover = msg->hwnd;
1575   while ((rover = GetNextWindow (rover, GW_HWNDNEXT)))
1576     {
1577       GdkWindow *rover_gdkw = gdk_win32_handle_table_lookup (rover);
1578
1579       /* Checking window group not implemented yet */
1580       if (rover_gdkw)
1581         {
1582           GdkWindowImplWin32 *rover_impl =
1583             GDK_WINDOW_IMPL_WIN32 (rover_gdkw->impl);
1584
1585           if (GDK_WINDOW_IS_MAPPED (rover_gdkw) &&
1586               (rover_impl->type_hint == GDK_WINDOW_TYPE_HINT_UTILITY ||
1587                rover_impl->type_hint == GDK_WINDOW_TYPE_HINT_DIALOG ||
1588                rover_impl->transient_owner != NULL))
1589             {
1590               lowest_transient = rover;
1591             }
1592         }
1593     }
1594   if (lowest_transient != NULL)
1595     {
1596       GDK_NOTE (EVENTS, g_print (" restacking: %p", lowest_transient));
1597       SetWindowPos (msg->hwnd, lowest_transient, 0, 0, 0, 0,
1598                     SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
1599     }
1600 }
1601
1602 static gboolean
1603 ensure_stacking_on_window_pos_changing (MSG       *msg,
1604                                         GdkWindow *window)
1605 {
1606   GdkWindowImplWin32 *impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
1607   WINDOWPOS *windowpos = (WINDOWPOS *) msg->lParam;
1608
1609   if (GetActiveWindow () == msg->hwnd &&
1610       impl->type_hint != GDK_WINDOW_TYPE_HINT_UTILITY &&
1611       impl->type_hint != GDK_WINDOW_TYPE_HINT_DIALOG &&
1612       impl->transient_owner == NULL)
1613     {
1614       /* Make sure the window stays behind any transient-type windows
1615        * of the same window group.
1616        *
1617        * If the window is not active and being activated, we let
1618        * Windows bring it to the top and rely on the WM_ACTIVATEAPP
1619        * handling to bring any utility windows on top of it.
1620        */
1621       HWND rover;
1622       gboolean restacking;
1623
1624       rover = windowpos->hwndInsertAfter;
1625       restacking = FALSE;
1626       while (rover)
1627         {
1628           GdkWindow *rover_gdkw = gdk_win32_handle_table_lookup (rover);
1629
1630           /* Checking window group not implemented yet */
1631           if (rover_gdkw)
1632             {
1633               GdkWindowImplWin32 *rover_impl =
1634                 GDK_WINDOW_IMPL_WIN32 (rover_gdkw->impl);
1635
1636               if (GDK_WINDOW_IS_MAPPED (rover_gdkw) &&
1637                   (rover_impl->type_hint == GDK_WINDOW_TYPE_HINT_UTILITY ||
1638                    rover_impl->type_hint == GDK_WINDOW_TYPE_HINT_DIALOG ||
1639                    rover_impl->transient_owner != NULL))
1640                 {
1641                   restacking = TRUE;
1642                   windowpos->hwndInsertAfter = rover;
1643                 }
1644             }
1645           rover = GetNextWindow (rover, GW_HWNDNEXT);
1646         }
1647
1648       if (restacking)
1649         {
1650           GDK_NOTE (EVENTS, g_print (" restacking: %p", windowpos->hwndInsertAfter));
1651           return TRUE;
1652         }
1653     }
1654   return FALSE;
1655 }
1656
1657 static void
1658 ensure_stacking_on_activate_app (MSG       *msg,
1659                                  GdkWindow *window)
1660 {
1661   GdkWindowImplWin32 *impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
1662
1663   if (impl->type_hint == GDK_WINDOW_TYPE_HINT_UTILITY ||
1664       impl->type_hint == GDK_WINDOW_TYPE_HINT_DIALOG ||
1665       impl->transient_owner != NULL)
1666     {
1667       SetWindowPos (msg->hwnd, HWND_TOP, 0, 0, 0, 0,
1668                     SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
1669       return;
1670     }
1671
1672   if (IsWindowVisible (msg->hwnd) &&
1673       msg->hwnd == GetActiveWindow ())
1674     {
1675       /* This window is not a transient-type window and it is the
1676        * activated window. Make sure this window is as visible as
1677        * possible, just below the lowest transient-type window of this
1678        * app.
1679        */
1680       HWND rover;
1681
1682       rover = msg->hwnd;
1683       while ((rover = GetNextWindow (rover, GW_HWNDPREV)))
1684         {
1685           GdkWindow *rover_gdkw = gdk_win32_handle_table_lookup (rover);
1686
1687           /* Checking window group not implemented yet */
1688           if (rover_gdkw)
1689             {
1690               GdkWindowImplWin32 *rover_impl =
1691                 GDK_WINDOW_IMPL_WIN32 (rover_gdkw->impl);
1692
1693               if (GDK_WINDOW_IS_MAPPED (rover_gdkw) &&
1694                   (rover_impl->type_hint == GDK_WINDOW_TYPE_HINT_UTILITY ||
1695                    rover_impl->type_hint == GDK_WINDOW_TYPE_HINT_DIALOG ||
1696                    rover_impl->transient_owner != NULL))
1697                 {
1698                   GDK_NOTE (EVENTS, g_print (" restacking: %p", rover));
1699                   SetWindowPos (msg->hwnd, rover, 0, 0, 0, 0,
1700                                 SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOSIZE);
1701                   break;
1702                 }
1703             }
1704         }
1705     }
1706 }
1707
1708 static gboolean
1709 gdk_event_translate (MSG  *msg,
1710                      gint *ret_valp)
1711 {
1712   RECT rect, *drag, orig_drag;
1713   POINT point;
1714   MINMAXINFO *mmi;
1715   HWND hwnd;
1716   HCURSOR hcursor;
1717   BYTE key_state[256];
1718   HIMC himc;
1719   WINDOWPOS *windowpos;
1720
1721   GdkEvent *event;
1722
1723   wchar_t wbuf[100];
1724   gint ccount;
1725
1726   GdkWindow *window = NULL;
1727   GdkWindowImplWin32 *impl;
1728
1729   GdkWindow *orig_window, *new_window, *toplevel;
1730
1731   GdkDeviceManager *device_manager;
1732
1733   GdkDeviceGrabInfo *keyboard_grab = NULL;
1734   GdkDeviceGrabInfo *pointer_grab = NULL;
1735   GdkWindow *grab_window = NULL;
1736
1737   gint button;
1738   GdkAtom target;
1739
1740   gchar buf[256];
1741   gboolean return_val = FALSE;
1742
1743   int i;
1744
1745   if (_gdk_default_filters)
1746     {
1747       /* Apply global filters */
1748
1749       GdkFilterReturn result = apply_event_filters (NULL, msg, &_gdk_default_filters);
1750
1751       /* If result is GDK_FILTER_CONTINUE, we continue as if nothing
1752        * happened. If it is GDK_FILTER_REMOVE or GDK_FILTER_TRANSLATE,
1753        * we return TRUE, and DefWindowProcW() will not be called.
1754        */
1755       if (result == GDK_FILTER_REMOVE || result == GDK_FILTER_TRANSLATE)
1756         return TRUE;
1757     }
1758
1759   window = gdk_win32_handle_table_lookup ((GdkNativeWindow) msg->hwnd);
1760   orig_window = window;
1761
1762   if (window == NULL)
1763     {
1764       /* XXX Handle WM_QUIT here ? */
1765       if (msg->message == WM_QUIT)
1766         {
1767           GDK_NOTE (EVENTS, g_print (" %d", (int) msg->wParam));
1768           exit (msg->wParam);
1769         }
1770       else if (msg->message == WM_MOVE ||
1771                msg->message == WM_SIZE)
1772         {
1773           /* It's quite normal to get these messages before we have
1774            * had time to register the window in our lookup table, or
1775            * when the window is being destroyed and we already have
1776            * removed it. Repost the same message to our queue so that
1777            * we will get it later when we are prepared.
1778            */
1779           GDK_NOTE (EVENTS, g_print (" (posted)"));
1780
1781           PostMessageW (msg->hwnd, msg->message, msg->wParam, msg->lParam);
1782         }
1783       else if (msg->message == WM_CREATE)
1784         {
1785           window = (UNALIGNED GdkWindow*) (((LPCREATESTRUCTW) msg->lParam)->lpCreateParams);
1786           GDK_WINDOW_HWND (window) = msg->hwnd;
1787         }
1788       else
1789         {
1790           GDK_NOTE (EVENTS, g_print (" (no GdkWindow)"));
1791         }
1792       return FALSE;
1793     }
1794
1795   device_manager = gdk_display_get_device_manager (_gdk_display);
1796
1797   keyboard_grab = _gdk_display_get_last_device_grab (_gdk_display,
1798                                                      GDK_DEVICE_MANAGER_WIN32 (device_manager)->core_keyboard);
1799   pointer_grab = _gdk_display_get_last_device_grab (_gdk_display,
1800                                                     GDK_DEVICE_MANAGER_WIN32 (device_manager)->core_pointer);
1801
1802   g_object_ref (window);
1803
1804   /* window's refcount has now been increased, so code below should
1805    * not just return from this function, but instead goto done (or
1806    * break out of the big switch). To protect against forgetting this,
1807    * #define return to a syntax error...
1808    */
1809 #define return GOTO_DONE_INSTEAD
1810
1811   if (!GDK_WINDOW_DESTROYED (window) && window->filters)
1812     {
1813       /* Apply per-window filters */
1814
1815       GdkFilterReturn result = apply_event_filters (window, msg, &window->filters);
1816
1817       if (result == GDK_FILTER_REMOVE || result == GDK_FILTER_TRANSLATE)
1818         {
1819           return_val = TRUE;
1820           goto done;
1821         }
1822     }
1823
1824   if (msg->message == client_message)
1825     {
1826       GList *tmp_list;
1827       GdkFilterReturn result = GDK_FILTER_CONTINUE;
1828       GList *node;
1829
1830       GDK_NOTE (EVENTS, g_print (" client_message"));
1831
1832       event = gdk_event_new (GDK_NOTHING);
1833       ((GdkEventPrivate *)event)->flags |= GDK_EVENT_PENDING;
1834
1835       node = _gdk_event_queue_append (_gdk_display, event);
1836
1837       tmp_list = client_filters;
1838       while (tmp_list)
1839         {
1840           GdkClientFilter *filter = tmp_list->data;
1841
1842           tmp_list = tmp_list->next;
1843
1844           if (filter->type == GDK_POINTER_TO_ATOM (msg->wParam))
1845             {
1846               GDK_NOTE (EVENTS, g_print (" (match)"));
1847
1848               result = (*filter->function) (msg, event, filter->data);
1849
1850               if (result != GDK_FILTER_CONTINUE)
1851                 break;
1852             }
1853         }
1854
1855       switch (result)
1856         {
1857         case GDK_FILTER_REMOVE:
1858           _gdk_event_queue_remove_link (_gdk_display, node);
1859           g_list_free_1 (node);
1860           gdk_event_free (event);
1861           return_val = TRUE;
1862           goto done;
1863
1864         case GDK_FILTER_TRANSLATE:
1865           ((GdkEventPrivate *)event)->flags &= ~GDK_EVENT_PENDING;
1866           GDK_NOTE (EVENTS, _gdk_win32_print_event (event));
1867           return_val = TRUE;
1868           goto done;
1869
1870         case GDK_FILTER_CONTINUE:
1871           /* Send unknown client messages on to Gtk for it to use */
1872
1873           event->client.type = GDK_CLIENT_EVENT;
1874           event->client.window = window;
1875           event->client.message_type = GDK_POINTER_TO_ATOM (msg->wParam);
1876           event->client.data_format = 32;
1877           event->client.data.l[0] = msg->lParam;
1878           for (i = 1; i < 5; i++)
1879             event->client.data.l[i] = 0;
1880           GDK_NOTE (EVENTS, _gdk_win32_print_event (event));
1881           return_val = TRUE;
1882           goto done;
1883         }
1884     }
1885
1886   switch (msg->message)
1887     {
1888     case WM_INPUTLANGCHANGE:
1889       _gdk_input_locale = (HKL) msg->lParam;
1890       _gdk_input_locale_is_ime = ImmIsIME (_gdk_input_locale);
1891       GetLocaleInfo (MAKELCID (LOWORD (_gdk_input_locale), SORT_DEFAULT),
1892                      LOCALE_IDEFAULTANSICODEPAGE,
1893                      buf, sizeof (buf));
1894       _gdk_input_codepage = atoi (buf);
1895       _gdk_keymap_serial++;
1896       GDK_NOTE (EVENTS,
1897                 g_print (" cs:%lu hkl:%p%s cp:%d",
1898                          (gulong) msg->wParam,
1899                          (gpointer) msg->lParam, _gdk_input_locale_is_ime ? " (IME)" : "",
1900                          _gdk_input_codepage));
1901       break;
1902
1903     case WM_SYSKEYUP:
1904     case WM_SYSKEYDOWN:
1905       GDK_NOTE (EVENTS,
1906                 g_print (" %s ch:%.02x %s",
1907                          _gdk_win32_key_to_string (msg->lParam),
1908                          (int) msg->wParam,
1909                          decode_key_lparam (msg->lParam)));
1910
1911       /* If posted without us having keyboard focus, ignore */
1912       if ((msg->wParam != VK_F10 && msg->wParam != VK_MENU) &&
1913           !(HIWORD (msg->lParam) & KF_ALTDOWN))
1914         break;
1915
1916       /* Let the system handle Alt-Tab, Alt-Space and Alt-F4 unless
1917        * the keyboard is grabbed.
1918        */
1919       if (!keyboard_grab &&
1920           (msg->wParam == VK_TAB ||
1921            msg->wParam == VK_SPACE ||
1922            msg->wParam == VK_F4))
1923         break;
1924
1925       /* Jump to code in common with WM_KEYUP and WM_KEYDOWN */
1926       goto keyup_or_down;
1927
1928     case WM_KEYUP:
1929     case WM_KEYDOWN:
1930       GDK_NOTE (EVENTS,
1931                 g_print (" %s ch:%.02x %s",
1932                          _gdk_win32_key_to_string (msg->lParam),
1933                          (int) msg->wParam,
1934                          decode_key_lparam (msg->lParam)));
1935
1936     keyup_or_down:
1937
1938       /* Ignore key messages intended for the IME */
1939       if (msg->wParam == VK_PROCESSKEY ||
1940           in_ime_composition)
1941         break;
1942
1943       if (keyboard_grab &&
1944           !propagate (&window, msg,
1945                       keyboard_grab->window,
1946                       keyboard_grab->owner_events,
1947                       GDK_ALL_EVENTS_MASK,
1948                       doesnt_want_key, FALSE))
1949         break;
1950
1951       if (GDK_WINDOW_DESTROYED (window))
1952         break;
1953
1954       event = gdk_event_new ((msg->message == WM_KEYDOWN ||
1955                               msg->message == WM_SYSKEYDOWN) ?
1956                              GDK_KEY_PRESS : GDK_KEY_RELEASE);
1957       event->key.window = window;
1958       event->key.time = _gdk_win32_get_next_tick (msg->time);
1959       event->key.keyval = GDK_KEY_VoidSymbol;
1960       event->key.string = NULL;
1961       event->key.length = 0;
1962       event->key.hardware_keycode = msg->wParam;
1963       gdk_event_set_device (event, GDK_DEVICE_MANAGER_WIN32 (device_manager)->core_keyboard);
1964       if (HIWORD (msg->lParam) & KF_EXTENDED)
1965         {
1966           switch (msg->wParam)
1967             {
1968             case VK_CONTROL:
1969               event->key.hardware_keycode = VK_RCONTROL;
1970               break;
1971             case VK_SHIFT:      /* Actually, KF_EXTENDED is not set
1972                                  * for the right shift key.
1973                                  */
1974               event->key.hardware_keycode = VK_RSHIFT;
1975               break;
1976             case VK_MENU:
1977               event->key.hardware_keycode = VK_RMENU;
1978               break;
1979             }
1980         }
1981       else if (msg->wParam == VK_SHIFT &&
1982                LOBYTE (HIWORD (msg->lParam)) == _scancode_rshift)
1983         event->key.hardware_keycode = VK_RSHIFT;
1984
1985       API_CALL (GetKeyboardState, (key_state));
1986
1987       /* g_print ("ctrl:%02x lctrl:%02x rctrl:%02x alt:%02x lalt:%02x ralt:%02x\n", key_state[VK_CONTROL], key_state[VK_LCONTROL], key_state[VK_RCONTROL], key_state[VK_MENU], key_state[VK_LMENU], key_state[VK_RMENU]); */
1988
1989       build_key_event_state (event, key_state);
1990
1991       gdk_keymap_translate_keyboard_state (_gdk_win32_display_get_keymap (_gdk_display),
1992                                            event->key.hardware_keycode,
1993                                            event->key.state,
1994                                            event->key.group,
1995                                            &event->key.keyval,
1996                                            NULL, NULL, NULL);
1997
1998       fill_key_event_string (event);
1999
2000       /* Reset MOD1_MASK if it is the Alt key itself */
2001       if (msg->wParam == VK_MENU)
2002         event->key.state &= ~GDK_MOD1_MASK;
2003
2004       append_event (event);
2005
2006       return_val = TRUE;
2007       break;
2008
2009     case WM_SYSCHAR:
2010       if (msg->wParam != VK_SPACE)
2011         {
2012           /* To prevent beeps, don't let DefWindowProcW() be called */
2013           return_val = TRUE;
2014           goto done;
2015         }
2016       break;
2017
2018     case WM_IME_STARTCOMPOSITION:
2019       in_ime_composition = TRUE;
2020       break;
2021
2022     case WM_IME_ENDCOMPOSITION:
2023       in_ime_composition = FALSE;
2024       break;
2025
2026     case WM_IME_COMPOSITION:
2027       /* On Win2k WM_IME_CHAR doesn't work correctly for non-Unicode
2028        * applications. Thus, handle WM_IME_COMPOSITION with
2029        * GCS_RESULTSTR instead, fetch the Unicode chars from the IME
2030        * with ImmGetCompositionStringW().
2031        *
2032        * See for instance
2033        * http://groups.google.com/groups?selm=natX5.57%24g77.19788%40nntp2.onemain.com
2034        * and
2035        * http://groups.google.com/groups?selm=u2XfrXw5BHA.1628%40tkmsftngp02
2036        * for comments by other people that seems to have the same
2037        * experience. WM_IME_CHAR just gives question marks, apparently
2038        * because of going through some conversion to the current code
2039        * page.
2040        *
2041        * WM_IME_CHAR might work on NT4 or Win9x with ActiveIMM, but
2042        * use WM_IME_COMPOSITION there, too, to simplify the code.
2043        */
2044       GDK_NOTE (EVENTS, g_print (" %#lx", (long) msg->lParam));
2045
2046       if (!(msg->lParam & GCS_RESULTSTR))
2047         break;
2048
2049       if (keyboard_grab &&
2050           !propagate (&window, msg,
2051                       keyboard_grab->window,
2052                       keyboard_grab->owner_events,
2053                       GDK_ALL_EVENTS_MASK,
2054                       doesnt_want_char, FALSE))
2055         break;
2056
2057       if (GDK_WINDOW_DESTROYED (window))
2058         break;
2059
2060       himc = ImmGetContext (msg->hwnd);
2061       ccount = ImmGetCompositionStringW (himc, GCS_RESULTSTR,
2062                                          wbuf, sizeof (wbuf));
2063       ImmReleaseContext (msg->hwnd, himc);
2064
2065       ccount /= 2;
2066
2067       API_CALL (GetKeyboardState, (key_state));
2068
2069       for (i = 0; i < ccount; i++)
2070         {
2071           if (window->event_mask & GDK_KEY_PRESS_MASK)
2072             {
2073               /* Build a key press event */
2074               event = gdk_event_new (GDK_KEY_PRESS);
2075               event->key.window = window;
2076         gdk_event_set_device (event, GDK_DEVICE_MANAGER_WIN32 (device_manager)->core_keyboard);
2077               build_wm_ime_composition_event (event, msg, wbuf[i], key_state);
2078
2079               append_event (event);
2080             }
2081
2082           if (window->event_mask & GDK_KEY_RELEASE_MASK)
2083             {
2084               /* Build a key release event.  */
2085               event = gdk_event_new (GDK_KEY_RELEASE);
2086               event->key.window = window;
2087         gdk_event_set_device (event, GDK_DEVICE_MANAGER_WIN32 (device_manager)->core_keyboard);
2088               build_wm_ime_composition_event (event, msg, wbuf[i], key_state);
2089
2090               append_event (event);
2091             }
2092         }
2093       return_val = TRUE;
2094       break;
2095
2096     case WM_LBUTTONDOWN:
2097       button = 1;
2098       goto buttondown0;
2099
2100     case WM_MBUTTONDOWN:
2101       button = 2;
2102       goto buttondown0;
2103
2104     case WM_RBUTTONDOWN:
2105       button = 3;
2106       goto buttondown0;
2107
2108     case WM_XBUTTONDOWN:
2109       if (HIWORD (msg->wParam) == XBUTTON1)
2110         button = 4;
2111       else
2112         button = 5;
2113
2114     buttondown0:
2115       GDK_NOTE (EVENTS,
2116                 g_print (" (%d,%d)",
2117                          GET_X_LPARAM (msg->lParam), GET_Y_LPARAM (msg->lParam)));
2118
2119       assign_object (&window, find_window_for_mouse_event (window, msg));
2120       /* TODO_CSW?: there used to some synthesize and propagate */
2121       if (GDK_WINDOW_DESTROYED (window))
2122         break;
2123
2124       /* TODO_CSW? Emulate X11's automatic active grab */
2125       generate_button_event (GDK_BUTTON_PRESS, button,
2126                              window, msg);
2127
2128       return_val = TRUE;
2129       break;
2130
2131     case WM_LBUTTONUP:
2132       button = 1;
2133       goto buttonup0;
2134
2135     case WM_MBUTTONUP:
2136       button = 2;
2137       goto buttonup0;
2138
2139     case WM_RBUTTONUP:
2140       button = 3;
2141       goto buttonup0;
2142
2143     case WM_XBUTTONUP:
2144       if (HIWORD (msg->wParam) == XBUTTON1)
2145         button = 4;
2146       else
2147         button = 5;
2148
2149     buttonup0:
2150       GDK_NOTE (EVENTS,
2151                 g_print (" (%d,%d)",
2152                          GET_X_LPARAM (msg->lParam), GET_Y_LPARAM (msg->lParam)));
2153
2154       assign_object (&window, find_window_for_mouse_event (window, msg));
2155 #if 0
2156       if (window->extension_events != 0 &&
2157           _gdk_input_ignore_core)
2158         {
2159           GDK_NOTE (EVENTS, g_print (" (ignored)"));
2160           break;
2161         }
2162 #endif
2163
2164       generate_button_event (GDK_BUTTON_RELEASE, button,
2165                              window, msg);
2166
2167       return_val = TRUE;
2168       break;
2169
2170     case WM_MOUSEMOVE:
2171       GDK_NOTE (EVENTS,
2172                 g_print (" %p (%d,%d)",
2173                          (gpointer) msg->wParam,
2174                          GET_X_LPARAM (msg->lParam), GET_Y_LPARAM (msg->lParam)));
2175
2176       assign_object (&window, find_window_for_mouse_event (window, msg));
2177       toplevel = gdk_window_get_toplevel (window);
2178       if (current_toplevel != toplevel)
2179         {
2180           GDK_NOTE (EVENTS, g_print (" toplevel %p -> %p",
2181               current_toplevel ? GDK_WINDOW_HWND (current_toplevel) : NULL,
2182               toplevel ? GDK_WINDOW_HWND (toplevel) : NULL));
2183           if (current_toplevel)
2184             synthesize_enter_or_leave_event (current_toplevel, msg,
2185                                        GDK_LEAVE_NOTIFY, GDK_CROSSING_NORMAL, GDK_NOTIFY_ANCESTOR);
2186           synthesize_enter_or_leave_event (toplevel, msg,
2187                                      GDK_ENTER_NOTIFY, GDK_CROSSING_NORMAL, GDK_NOTIFY_ANCESTOR);
2188           assign_object (&current_toplevel, toplevel);
2189           track_mouse_event (TME_LEAVE, GDK_WINDOW_HWND (toplevel));
2190         }
2191
2192       /* If we haven't moved, don't create any GDK event. Windows
2193        * sends WM_MOUSEMOVE messages after a new window is shows under
2194        * the mouse, even if the mouse hasn't moved. This disturbs gtk.
2195        */
2196       if (msg->pt.x + _gdk_offset_x == current_root_x &&
2197           msg->pt.y + _gdk_offset_y == current_root_y)
2198         break;
2199
2200       current_root_x = msg->pt.x + _gdk_offset_x;
2201       current_root_y = msg->pt.y + _gdk_offset_y;
2202
2203       event = gdk_event_new (GDK_MOTION_NOTIFY);
2204       event->motion.window = window;
2205       event->motion.time = _gdk_win32_get_next_tick (msg->time);
2206       event->motion.x = current_x = (gint16) GET_X_LPARAM (msg->lParam);
2207       event->motion.y = current_y = (gint16) GET_Y_LPARAM (msg->lParam);
2208       event->motion.x_root = current_root_x;
2209       event->motion.y_root = current_root_y;
2210       event->motion.axes = NULL;
2211       event->motion.state = build_pointer_event_state (msg);
2212       event->motion.is_hint = FALSE;
2213       gdk_event_set_device (event, _gdk_display->core_pointer);
2214
2215       append_event (event);
2216
2217       return_val = TRUE;
2218       break;
2219
2220     case WM_NCMOUSEMOVE:
2221       GDK_NOTE (EVENTS,
2222                 g_print (" (%d,%d)",
2223                          GET_X_LPARAM (msg->lParam), GET_Y_LPARAM (msg->lParam)));
2224 #if 0 /* TODO_CSW? */
2225       if (current_toplevel != NULL &&
2226           (current_toplevel->event_mask & GDK_LEAVE_NOTIFY_MASK))
2227         {
2228           synthesize_enter_or_leave_event (current_toplevel, msg,
2229                                            GDK_LEAVE_NOTIFY, GDK_CROSSING_NORMAL, GDK_NOTIFY_ANCESTOR);
2230         }
2231 #endif
2232       break;
2233
2234     case WM_MOUSELEAVE:
2235       GDK_NOTE (EVENTS, g_print (" %d (%ld,%ld)",
2236                                  HIWORD (msg->wParam), msg->pt.x, msg->pt.y));
2237
2238       if (!gdk_win32_handle_table_lookup ((GdkNativeWindow) WindowFromPoint (msg->pt)))
2239         {
2240           /* we are only interested if we don't know the new window */
2241           if (current_toplevel)
2242             synthesize_enter_or_leave_event (current_toplevel, msg,
2243                                        GDK_LEAVE_NOTIFY, GDK_CROSSING_NORMAL, GDK_NOTIFY_ANCESTOR);
2244           assign_object (&current_toplevel, NULL);
2245         }
2246       else
2247         {
2248           GDK_NOTE (EVENTS, g_print (" (ignored)"));
2249         }
2250
2251       return_val = TRUE;
2252       break;
2253
2254     case WM_MOUSEWHEEL:
2255       GDK_NOTE (EVENTS, g_print (" %d", (short) HIWORD (msg->wParam)));
2256
2257       /* WM_MOUSEWHEEL is delivered to the focus window. Work around
2258        * that. Also, the position is in screen coordinates, not client
2259        * coordinates as with the button messages. I love the
2260        * consistency of Windows.
2261        */
2262       point.x = GET_X_LPARAM (msg->lParam);
2263       point.y = GET_Y_LPARAM (msg->lParam);
2264
2265       if ((hwnd = WindowFromPoint (point)) == NULL)
2266         break;
2267
2268       msg->hwnd = hwnd;
2269       if ((new_window = gdk_win32_handle_table_lookup ((GdkNativeWindow) msg->hwnd)) == NULL)
2270         break;
2271
2272       if (new_window != window)
2273         {
2274           assign_object (&window, new_window);
2275         }
2276
2277       ScreenToClient (msg->hwnd, &point);
2278
2279       event = gdk_event_new (GDK_SCROLL);
2280       event->scroll.window = window;
2281       event->scroll.direction = (((short) HIWORD (msg->wParam)) > 0) ?
2282         GDK_SCROLL_UP : GDK_SCROLL_DOWN;
2283       event->scroll.time = _gdk_win32_get_next_tick (msg->time);
2284       event->scroll.x = (gint16) point.x;
2285       event->scroll.y = (gint16) point.y;
2286       event->scroll.x_root = (gint16) GET_X_LPARAM (msg->lParam) + _gdk_offset_x;
2287       event->scroll.y_root = (gint16) GET_Y_LPARAM (msg->lParam) + _gdk_offset_y;
2288       event->scroll.state = build_pointer_event_state (msg);
2289       gdk_event_set_device (event, _gdk_display->core_pointer);
2290
2291       append_event (event);
2292
2293       return_val = TRUE;
2294       break;
2295
2296     case WM_HSCROLL:
2297       /* Just print more debugging information, don't actually handle it. */
2298       GDK_NOTE (EVENTS,
2299                 (g_print (" %s",
2300                           (LOWORD (msg->wParam) == SB_ENDSCROLL ? "ENDSCROLL" :
2301                            (LOWORD (msg->wParam) == SB_LEFT ? "LEFT" :
2302                             (LOWORD (msg->wParam) == SB_RIGHT ? "RIGHT" :
2303                              (LOWORD (msg->wParam) == SB_LINELEFT ? "LINELEFT" :
2304                               (LOWORD (msg->wParam) == SB_LINERIGHT ? "LINERIGHT" :
2305                                (LOWORD (msg->wParam) == SB_PAGELEFT ? "PAGELEFT" :
2306                                 (LOWORD (msg->wParam) == SB_PAGERIGHT ? "PAGERIGHT" :
2307                                  (LOWORD (msg->wParam) == SB_THUMBPOSITION ? "THUMBPOSITION" :
2308                                   (LOWORD (msg->wParam) == SB_THUMBTRACK ? "THUMBTRACK" :
2309                                    "???")))))))))),
2310                  (LOWORD (msg->wParam) == SB_THUMBPOSITION ||
2311                   LOWORD (msg->wParam) == SB_THUMBTRACK) ?
2312                  (g_print (" %d", HIWORD (msg->wParam)), 0) : 0));
2313       break;
2314
2315     case WM_VSCROLL:
2316       /* Just print more debugging information, don't actually handle it. */
2317       GDK_NOTE (EVENTS,
2318                 (g_print (" %s",
2319                           (LOWORD (msg->wParam) == SB_ENDSCROLL ? "ENDSCROLL" :
2320                            (LOWORD (msg->wParam) == SB_BOTTOM ? "BOTTOM" :
2321                             (LOWORD (msg->wParam) == SB_TOP ? "TOP" :
2322                              (LOWORD (msg->wParam) == SB_LINEDOWN ? "LINDOWN" :
2323                               (LOWORD (msg->wParam) == SB_LINEUP ? "LINEUP" :
2324                                (LOWORD (msg->wParam) == SB_PAGEDOWN ? "PAGEDOWN" :
2325                                 (LOWORD (msg->wParam) == SB_PAGEUP ? "PAGEUP" :
2326                                  (LOWORD (msg->wParam) == SB_THUMBPOSITION ? "THUMBPOSITION" :
2327                                   (LOWORD (msg->wParam) == SB_THUMBTRACK ? "THUMBTRACK" :
2328                                    "???")))))))))),
2329                  (LOWORD (msg->wParam) == SB_THUMBPOSITION ||
2330                   LOWORD (msg->wParam) == SB_THUMBTRACK) ?
2331                  (g_print (" %d", HIWORD (msg->wParam)), 0) : 0));
2332       break;
2333
2334      case WM_MOUSEACTIVATE:
2335        {
2336          GdkWindow *tmp;
2337
2338          if (gdk_window_get_window_type (window) == GDK_WINDOW_TEMP
2339              || !window->accept_focus)
2340            {
2341              *ret_valp = MA_NOACTIVATE;
2342              return_val = TRUE;
2343            }
2344
2345          tmp = _gdk_modal_current ();
2346
2347          if (tmp != NULL)
2348            {
2349              if (gdk_window_get_toplevel (window) != tmp)
2350                {
2351                  *ret_valp = MA_NOACTIVATEANDEAT;
2352                  return_val = TRUE;
2353                }
2354            }
2355        }
2356
2357        break;
2358
2359     case WM_KILLFOCUS:
2360       if (keyboard_grab != NULL &&
2361           !GDK_WINDOW_DESTROYED (keyboard_grab->window))
2362         {
2363           generate_grab_broken_event (device_manager, keyboard_grab->window, TRUE, NULL);
2364         }
2365
2366       /* fallthrough */
2367     case WM_SETFOCUS:
2368       if (keyboard_grab != NULL &&
2369           !keyboard_grab->owner_events)
2370         break;
2371
2372       if (!(window->event_mask & GDK_FOCUS_CHANGE_MASK))
2373         break;
2374
2375       if (GDK_WINDOW_DESTROYED (window))
2376         break;
2377
2378       generate_focus_event (device_manager, window, (msg->message == WM_SETFOCUS));
2379       return_val = TRUE;
2380       break;
2381
2382     case WM_ERASEBKGND:
2383       GDK_NOTE (EVENTS, g_print (" %p", (HANDLE) msg->wParam));
2384
2385       if (GDK_WINDOW_DESTROYED (window))
2386         break;
2387
2388       return_val = TRUE;
2389       *ret_valp = 1;
2390       break;
2391
2392     case WM_SYNCPAINT:
2393       sync_timer = SetTimer (GDK_WINDOW_HWND (window),
2394                              1,
2395                              200, sync_timer_proc);
2396       break;
2397
2398     case WM_PAINT:
2399       handle_wm_paint (msg, window, FALSE, NULL);
2400       break;
2401
2402     case WM_SETCURSOR:
2403       GDK_NOTE (EVENTS, g_print (" %#x %#x",
2404                                  LOWORD (msg->lParam), HIWORD (msg->lParam)));
2405
2406       if (pointer_grab != NULL)
2407         grab_window = pointer_grab->window;
2408
2409       if (grab_window == NULL && LOWORD (msg->lParam) != HTCLIENT)
2410         break;
2411
2412       if (grab_window != NULL && p_grab_cursor != NULL)
2413         hcursor = p_grab_cursor;
2414       else if (!GDK_WINDOW_DESTROYED (window))
2415         hcursor = GDK_WINDOW_IMPL_WIN32 (window->impl)->hcursor;
2416       else
2417         hcursor = NULL;
2418
2419       if (hcursor != NULL)
2420         {
2421           GDK_NOTE (EVENTS, g_print (" (SetCursor(%p)", hcursor));
2422           SetCursor (hcursor);
2423           return_val = TRUE;
2424           *ret_valp = TRUE;
2425         }
2426       break;
2427
2428     case WM_SHOWWINDOW:
2429       GDK_NOTE (EVENTS, g_print (" %s %s",
2430                                  (msg->wParam ? "YES" : "NO"),
2431                                  (msg->lParam == 0 ? "ShowWindow" :
2432                                   (msg->lParam == SW_OTHERUNZOOM ? "OTHERUNZOOM" :
2433                                    (msg->lParam == SW_OTHERZOOM ? "OTHERZOOM" :
2434                                     (msg->lParam == SW_PARENTCLOSING ? "PARENTCLOSING" :
2435                                      (msg->lParam == SW_PARENTOPENING ? "PARENTOPENING" :
2436                                       "???")))))));
2437
2438       if (!(window->event_mask & GDK_STRUCTURE_MASK))
2439         break;
2440
2441       if (msg->lParam == SW_OTHERUNZOOM ||
2442           msg->lParam == SW_OTHERZOOM)
2443         break;
2444
2445       if (GDK_WINDOW_DESTROYED (window))
2446         break;
2447
2448       event = gdk_event_new (msg->wParam ? GDK_MAP : GDK_UNMAP);
2449       event->any.window = window;
2450
2451       append_event (event);
2452
2453       if (event->any.type == GDK_UNMAP)
2454         {
2455           impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
2456
2457           if (impl->transient_owner && GetForegroundWindow () == GDK_WINDOW_HWND (window))
2458             {
2459               SetForegroundWindow (GDK_WINDOW_HWND (impl->transient_owner));
2460             }
2461
2462           if (pointer_grab != NULL)
2463             {
2464               if (pointer_grab->window == window)
2465                 gdk_pointer_ungrab (msg->time);
2466             }
2467
2468           if (keyboard_grab &&
2469         keyboard_grab->window == window)
2470             gdk_keyboard_ungrab (msg->time);
2471         }
2472
2473       return_val = TRUE;
2474       break;
2475
2476     case WM_SYSCOMMAND:
2477       switch (msg->wParam)
2478         {
2479         case SC_MINIMIZE:
2480         case SC_RESTORE:
2481           do_show_window (window, msg->wParam == SC_MINIMIZE ? TRUE : FALSE);
2482           break;
2483         }
2484
2485       break;
2486
2487     case WM_SIZE:
2488       GDK_NOTE (EVENTS,
2489                 g_print (" %s %dx%d",
2490                          (msg->wParam == SIZE_MAXHIDE ? "MAXHIDE" :
2491                           (msg->wParam == SIZE_MAXIMIZED ? "MAXIMIZED" :
2492                            (msg->wParam == SIZE_MAXSHOW ? "MAXSHOW" :
2493                             (msg->wParam == SIZE_MINIMIZED ? "MINIMIZED" :
2494                              (msg->wParam == SIZE_RESTORED ? "RESTORED" : "?"))))),
2495                          LOWORD (msg->lParam), HIWORD (msg->lParam)));
2496
2497       if (msg->wParam == SIZE_MINIMIZED)
2498         {
2499           /* Don't generate any GDK event. This is *not* an UNMAP. */
2500           if (pointer_grab != NULL)
2501             {
2502               if (pointer_grab->window == window)
2503                 gdk_pointer_ungrab (msg->time);
2504             }
2505           if (keyboard_grab &&
2506         keyboard_grab->window == window)
2507             gdk_keyboard_ungrab (msg->time);
2508
2509           gdk_synthesize_window_state (window,
2510                                        GDK_WINDOW_STATE_WITHDRAWN,
2511                                        GDK_WINDOW_STATE_ICONIFIED);
2512           do_show_window (window, TRUE);
2513         }
2514       else if ((msg->wParam == SIZE_RESTORED ||
2515                 msg->wParam == SIZE_MAXIMIZED) &&
2516                GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD)
2517         {
2518           GdkWindowState withdrawn_bit =
2519             IsWindowVisible (msg->hwnd) ? GDK_WINDOW_STATE_WITHDRAWN : 0;
2520
2521           if (window->state & GDK_WINDOW_STATE_ICONIFIED)
2522             ensure_stacking_on_unminimize (msg);
2523
2524           if (!GDK_WINDOW_DESTROYED (window))
2525             handle_configure_event (msg, window);
2526
2527           if (msg->wParam == SIZE_RESTORED)
2528             {
2529               gdk_synthesize_window_state (window,
2530                                            GDK_WINDOW_STATE_ICONIFIED |
2531                                            GDK_WINDOW_STATE_MAXIMIZED |
2532                                            withdrawn_bit,
2533                                            0);
2534
2535               if (GDK_WINDOW_TYPE (window) != GDK_WINDOW_TEMP && !GDK_WINDOW_IS_MAPPED (window))
2536                 {
2537                   do_show_window (window, FALSE);
2538                 }
2539             }
2540           else if (msg->wParam == SIZE_MAXIMIZED)
2541             {
2542               gdk_synthesize_window_state (window,
2543                                            GDK_WINDOW_STATE_ICONIFIED |
2544                                            withdrawn_bit,
2545                                            GDK_WINDOW_STATE_MAXIMIZED);
2546             }
2547
2548           if (window->resize_count > 1)
2549             window->resize_count -= 1;
2550
2551           if (window->extension_events != 0)
2552       _gdk_device_wintab_update_window_coords (window);
2553
2554           return_val = TRUE;
2555         }
2556       break;
2557
2558     case WM_ENTERSIZEMOVE:
2559     case WM_ENTERMENULOOP:
2560       _gdk_win32_begin_modal_call ();
2561       break;
2562
2563     case WM_EXITSIZEMOVE:
2564     case WM_EXITMENULOOP:
2565       _gdk_win32_end_modal_call ();
2566       break;
2567
2568     case WM_WINDOWPOSCHANGING:
2569       GDK_NOTE (EVENTS, (windowpos = (WINDOWPOS *) msg->lParam,
2570                          g_print (" %s %s %dx%d@%+d%+d now below %p",
2571                                   _gdk_win32_window_pos_bits_to_string (windowpos->flags),
2572                                   (windowpos->hwndInsertAfter == HWND_BOTTOM ? "BOTTOM" :
2573                                    (windowpos->hwndInsertAfter == HWND_NOTOPMOST ? "NOTOPMOST" :
2574                                     (windowpos->hwndInsertAfter == HWND_TOP ? "TOP" :
2575                                      (windowpos->hwndInsertAfter == HWND_TOPMOST ? "TOPMOST" :
2576                                       (sprintf (buf, "%p", windowpos->hwndInsertAfter),
2577                                        buf))))),
2578                                   windowpos->cx, windowpos->cy, windowpos->x, windowpos->y,
2579                                   GetNextWindow (msg->hwnd, GW_HWNDPREV))));
2580
2581       if (GDK_WINDOW_IS_MAPPED (window))
2582         return_val = ensure_stacking_on_window_pos_changing (msg, window);
2583       break;
2584
2585     case WM_WINDOWPOSCHANGED:
2586       windowpos = (WINDOWPOS *) msg->lParam;
2587       GDK_NOTE (EVENTS, g_print (" %s %s %dx%d@%+d%+d",
2588                                  _gdk_win32_window_pos_bits_to_string (windowpos->flags),
2589                                  (windowpos->hwndInsertAfter == HWND_BOTTOM ? "BOTTOM" :
2590                                   (windowpos->hwndInsertAfter == HWND_NOTOPMOST ? "NOTOPMOST" :
2591                                    (windowpos->hwndInsertAfter == HWND_TOP ? "TOP" :
2592                                     (windowpos->hwndInsertAfter == HWND_TOPMOST ? "TOPMOST" :
2593                                      (sprintf (buf, "%p", windowpos->hwndInsertAfter),
2594                                       buf))))),
2595                                  windowpos->cx, windowpos->cy, windowpos->x, windowpos->y));
2596
2597       /* If position and size haven't changed, don't do anything */
2598       if (_modal_operation_in_progress &&
2599           (windowpos->flags & SWP_NOMOVE) &&
2600           (windowpos->flags & SWP_NOSIZE))
2601         break;
2602
2603       /* Once we've entered the moving or sizing modal loop, we won't
2604        * return to the main loop until we're done sizing or moving.
2605        */
2606       if (_modal_operation_in_progress &&
2607          GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD &&
2608          !GDK_WINDOW_DESTROYED (window))
2609         {
2610           if (window->event_mask & GDK_STRUCTURE_MASK)
2611             {
2612               GDK_NOTE (EVENTS, g_print (" do magic"));
2613               if (window->resize_count > 1)
2614                 window->resize_count -= 1;
2615
2616               handle_configure_event (msg, window);
2617               g_main_context_iteration (NULL, FALSE);
2618 #if 0
2619               /* Dispatch main loop - to realize resizes... */
2620               modal_timer_proc (msg->hwnd, msg->message, 0, msg->time);
2621 #endif
2622               /* Claim as handled, so that WM_SIZE and WM_MOVE are avoided */
2623               return_val = TRUE;
2624               *ret_valp = 1;
2625             }
2626         }
2627       break;
2628
2629     case WM_SIZING:
2630       GetWindowRect (GDK_WINDOW_HWND (window), &rect);
2631       drag = (RECT *) msg->lParam;
2632       GDK_NOTE (EVENTS, g_print (" %s curr:%s drag:%s",
2633                                  (msg->wParam == WMSZ_BOTTOM ? "BOTTOM" :
2634                                   (msg->wParam == WMSZ_BOTTOMLEFT ? "BOTTOMLEFT" :
2635                                    (msg->wParam == WMSZ_LEFT ? "LEFT" :
2636                                     (msg->wParam == WMSZ_TOPLEFT ? "TOPLEFT" :
2637                                      (msg->wParam == WMSZ_TOP ? "TOP" :
2638                                       (msg->wParam == WMSZ_TOPRIGHT ? "TOPRIGHT" :
2639                                        (msg->wParam == WMSZ_RIGHT ? "RIGHT" :
2640
2641                                         (msg->wParam == WMSZ_BOTTOMRIGHT ? "BOTTOMRIGHT" :
2642                                          "???")))))))),
2643                                  _gdk_win32_rect_to_string (&rect),
2644                                  _gdk_win32_rect_to_string (drag)));
2645
2646       impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
2647       orig_drag = *drag;
2648       if (impl->hint_flags & GDK_HINT_RESIZE_INC)
2649         {
2650           GDK_NOTE (EVENTS, g_print (" (RESIZE_INC)"));
2651           if (impl->hint_flags & GDK_HINT_BASE_SIZE)
2652             {
2653               /* Resize in increments relative to the base size */
2654               rect.left = rect.top = 0;
2655               rect.right = impl->hints.base_width;
2656               rect.bottom = impl->hints.base_height;
2657               _gdk_win32_adjust_client_rect (window, &rect);
2658               point.x = rect.left;
2659               point.y = rect.top;
2660               ClientToScreen (GDK_WINDOW_HWND (window), &point);
2661               rect.left = point.x;
2662               rect.top = point.y;
2663               point.x = rect.right;
2664               point.y = rect.bottom;
2665               ClientToScreen (GDK_WINDOW_HWND (window), &point);
2666               rect.right = point.x;
2667               rect.bottom = point.y;
2668
2669               GDK_NOTE (EVENTS, g_print (" (also BASE_SIZE, using %s)",
2670                                          _gdk_win32_rect_to_string (&rect)));
2671             }
2672
2673           switch (msg->wParam)
2674             {
2675             case WMSZ_BOTTOM:
2676               if (drag->bottom == rect.bottom)
2677                 break;
2678               adjust_drag (&drag->bottom, rect.bottom, impl->hints.height_inc);
2679               break;
2680
2681             case WMSZ_BOTTOMLEFT:
2682               if (drag->bottom == rect.bottom && drag->left == rect.left)
2683                 break;
2684               adjust_drag (&drag->bottom, rect.bottom, impl->hints.height_inc);
2685               adjust_drag (&drag->left, rect.left, impl->hints.width_inc);
2686               break;
2687
2688             case WMSZ_LEFT:
2689               if (drag->left == rect.left)
2690                 break;
2691               adjust_drag (&drag->left, rect.left, impl->hints.width_inc);
2692               break;
2693
2694             case WMSZ_TOPLEFT:
2695               if (drag->top == rect.top && drag->left == rect.left)
2696                 break;
2697               adjust_drag (&drag->top, rect.top, impl->hints.height_inc);
2698               adjust_drag (&drag->left, rect.left, impl->hints.width_inc);
2699               break;
2700
2701             case WMSZ_TOP:
2702               if (drag->top == rect.top)
2703                 break;
2704               adjust_drag (&drag->top, rect.top, impl->hints.height_inc);
2705               break;
2706
2707             case WMSZ_TOPRIGHT:
2708               if (drag->top == rect.top && drag->right == rect.right)
2709                 break;
2710               adjust_drag (&drag->top, rect.top, impl->hints.height_inc);
2711               adjust_drag (&drag->right, rect.right, impl->hints.width_inc);
2712               break;
2713
2714             case WMSZ_RIGHT:
2715               if (drag->right == rect.right)
2716                 break;
2717               adjust_drag (&drag->right, rect.right, impl->hints.width_inc);
2718               break;
2719
2720             case WMSZ_BOTTOMRIGHT:
2721               if (drag->bottom == rect.bottom && drag->right == rect.right)
2722                 break;
2723               adjust_drag (&drag->bottom, rect.bottom, impl->hints.height_inc);
2724               adjust_drag (&drag->right, rect.right, impl->hints.width_inc);
2725               break;
2726             }
2727
2728           if (drag->bottom != orig_drag.bottom || drag->left != orig_drag.left ||
2729               drag->top != orig_drag.top || drag->right != orig_drag.right)
2730             {
2731               *ret_valp = TRUE;
2732               return_val = TRUE;
2733               GDK_NOTE (EVENTS, g_print (" (handled RESIZE_INC: %s)",
2734                                          _gdk_win32_rect_to_string (drag)));
2735             }
2736         }
2737
2738       /* WM_GETMINMAXINFO handles min_size and max_size hints? */
2739
2740       if (impl->hint_flags & GDK_HINT_ASPECT)
2741         {
2742           RECT decorated_rect;
2743           RECT undecorated_drag;
2744           int decoration_width, decoration_height;
2745           gdouble drag_aspect;
2746           int drag_width, drag_height, new_width, new_height;
2747
2748           GetClientRect (GDK_WINDOW_HWND (window), &rect);
2749           decorated_rect = rect;
2750           _gdk_win32_adjust_client_rect (window, &decorated_rect);
2751
2752           /* Set undecorated_drag to the client area being dragged
2753            * out, in screen coordinates.
2754            */
2755           undecorated_drag = *drag;
2756           undecorated_drag.left -= decorated_rect.left - rect.left;
2757           undecorated_drag.right -= decorated_rect.right - rect.right;
2758           undecorated_drag.top -= decorated_rect.top - rect.top;
2759           undecorated_drag.bottom -= decorated_rect.bottom - rect.bottom;
2760
2761           decoration_width = (decorated_rect.right - decorated_rect.left) - (rect.right - rect.left);
2762           decoration_height = (decorated_rect.bottom - decorated_rect.top) - (rect.bottom - rect.top);
2763
2764           drag_width = undecorated_drag.right - undecorated_drag.left;
2765           drag_height = undecorated_drag.bottom - undecorated_drag.top;
2766
2767           drag_aspect = (gdouble) drag_width / drag_height;
2768
2769           GDK_NOTE (EVENTS, g_print (" (ASPECT:%g--%g curr: %g)",
2770                                      impl->hints.min_aspect, impl->hints.max_aspect, drag_aspect));
2771
2772           if (drag_aspect < impl->hints.min_aspect)
2773             {
2774               /* Aspect is getting too narrow */
2775               switch (msg->wParam)
2776                 {
2777                 case WMSZ_BOTTOM:
2778                 case WMSZ_TOP:
2779                   /* User drags top or bottom edge outward. Keep height, increase width. */
2780                   new_width = impl->hints.min_aspect * drag_height;
2781                   drag->left -= (new_width - drag_width) / 2;
2782                   drag->right = drag->left + new_width + decoration_width;
2783                   break;
2784                 case WMSZ_BOTTOMLEFT:
2785                 case WMSZ_BOTTOMRIGHT:
2786                   /* User drags bottom-left or bottom-right corner down. Adjust height. */
2787                   new_height = drag_width / impl->hints.min_aspect;
2788                   drag->bottom = drag->top + new_height + decoration_height;
2789                   break;
2790                 case WMSZ_LEFT:
2791                 case WMSZ_RIGHT:
2792                   /* User drags left or right edge inward. Decrease height */
2793                   new_height = drag_width / impl->hints.min_aspect;
2794                   drag->top += (drag_height - new_height) / 2;
2795                   drag->bottom = drag->top + new_height + decoration_height;
2796                   break;
2797                 case WMSZ_TOPLEFT:
2798                 case WMSZ_TOPRIGHT:
2799                   /* User drags top-left or top-right corner up. Adjust height. */
2800                   new_height = drag_width / impl->hints.min_aspect;
2801                   drag->top = drag->bottom - new_height - decoration_height;
2802                 }
2803             }
2804           else if (drag_aspect > impl->hints.max_aspect)
2805             {
2806               /* Aspect is getting too wide */
2807               switch (msg->wParam)
2808                 {
2809                 case WMSZ_BOTTOM:
2810                 case WMSZ_TOP:
2811                   /* User drags top or bottom edge inward. Decrease width. */
2812                   new_width = impl->hints.max_aspect * drag_height;
2813                   drag->left += (drag_width - new_width) / 2;
2814                   drag->right = drag->left + new_width + decoration_width;
2815                   break;
2816                 case WMSZ_BOTTOMLEFT:
2817                 case WMSZ_TOPLEFT:
2818                   /* User drags bottom-left or top-left corner left. Adjust width. */
2819                   new_width = impl->hints.max_aspect * drag_height;
2820                   drag->left = drag->right - new_width - decoration_width;
2821                   break;
2822                 case WMSZ_BOTTOMRIGHT:
2823                 case WMSZ_TOPRIGHT:
2824                   /* User drags bottom-right or top-right corner right. Adjust width. */
2825                   new_width = impl->hints.max_aspect * drag_height;
2826                   drag->right = drag->left + new_width + decoration_width;
2827                   break;
2828                 case WMSZ_LEFT:
2829                 case WMSZ_RIGHT:
2830                   /* User drags left or right edge outward. Increase height. */
2831                   new_height = drag_width / impl->hints.max_aspect;
2832                   drag->top -= (new_height - drag_height) / 2;
2833                   drag->bottom = drag->top + new_height + decoration_height;
2834                   break;
2835                 }
2836             }
2837
2838           *ret_valp = TRUE;
2839           return_val = TRUE;
2840           GDK_NOTE (EVENTS, g_print (" (handled ASPECT: %s)",
2841                                      _gdk_win32_rect_to_string (drag)));
2842         }
2843       break;
2844
2845     case WM_GETMINMAXINFO:
2846       if (GDK_WINDOW_DESTROYED (window))
2847         break;
2848
2849       impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
2850       mmi = (MINMAXINFO*) msg->lParam;
2851       GDK_NOTE (EVENTS, g_print (" (mintrack:%ldx%ld maxtrack:%ldx%ld "
2852                                  "maxpos:%+ld%+ld maxsize:%ldx%ld)",
2853                                  mmi->ptMinTrackSize.x, mmi->ptMinTrackSize.y,
2854                                  mmi->ptMaxTrackSize.x, mmi->ptMaxTrackSize.y,
2855                                  mmi->ptMaxPosition.x, mmi->ptMaxPosition.y,
2856                                  mmi->ptMaxSize.x, mmi->ptMaxSize.y));
2857
2858       if (impl->hint_flags & GDK_HINT_MIN_SIZE)
2859         {
2860           rect.left = rect.top = 0;
2861           rect.right = impl->hints.min_width;
2862           rect.bottom = impl->hints.min_height;
2863
2864           _gdk_win32_adjust_client_rect (window, &rect);
2865
2866           mmi->ptMinTrackSize.x = rect.right - rect.left;
2867           mmi->ptMinTrackSize.y = rect.bottom - rect.top;
2868         }
2869
2870       if (impl->hint_flags & GDK_HINT_MAX_SIZE)
2871         {
2872           int maxw, maxh;
2873
2874           rect.left = rect.top = 0;
2875           rect.right = impl->hints.max_width;
2876           rect.bottom = impl->hints.max_height;
2877
2878           _gdk_win32_adjust_client_rect (window, &rect);
2879
2880           /* at least on win9x we have the 16 bit trouble */
2881           maxw = rect.right - rect.left;
2882           maxh = rect.bottom - rect.top;
2883           mmi->ptMaxTrackSize.x = maxw > 0 && maxw < G_MAXSHORT ? maxw : G_MAXSHORT;
2884           mmi->ptMaxTrackSize.y = maxh > 0 && maxh < G_MAXSHORT ? maxh : G_MAXSHORT;
2885         }
2886
2887       if (impl->hint_flags & (GDK_HINT_MIN_SIZE | GDK_HINT_MAX_SIZE))
2888         {
2889           /* Don't call DefWindowProcW() */
2890           GDK_NOTE (EVENTS, g_print (" (handled, mintrack:%ldx%ld maxtrack:%ldx%ld "
2891                                      "maxpos:%+ld%+ld maxsize:%ldx%ld)",
2892                                      mmi->ptMinTrackSize.x, mmi->ptMinTrackSize.y,
2893                                      mmi->ptMaxTrackSize.x, mmi->ptMaxTrackSize.y,
2894                                      mmi->ptMaxPosition.x, mmi->ptMaxPosition.y,
2895                                      mmi->ptMaxSize.x, mmi->ptMaxSize.y));
2896           return_val = TRUE;
2897         }
2898       break;
2899
2900     case WM_MOVE:
2901       GDK_NOTE (EVENTS, g_print (" (%d,%d)",
2902                                  GET_X_LPARAM (msg->lParam), GET_Y_LPARAM (msg->lParam)));
2903
2904       if (GDK_WINDOW_TYPE (window) != GDK_WINDOW_CHILD &&
2905           !IsIconic (msg->hwnd))
2906         {
2907           if (!GDK_WINDOW_DESTROYED (window))
2908             handle_configure_event (msg, window);
2909
2910           return_val = TRUE;
2911         }
2912       break;
2913
2914     case WM_CLOSE:
2915       if (GDK_WINDOW_DESTROYED (window))
2916         break;
2917
2918       event = gdk_event_new (GDK_DELETE);
2919       event->any.window = window;
2920
2921       append_event (event);
2922
2923       impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
2924
2925       if (impl->transient_owner && GetForegroundWindow() == GDK_WINDOW_HWND (window))
2926         {
2927           SetForegroundWindow (GDK_WINDOW_HWND (impl->transient_owner));
2928         }
2929
2930       return_val = TRUE;
2931       break;
2932
2933     case WM_DESTROY:
2934       if (pointer_grab != NULL)
2935         {
2936           if (pointer_grab->window == window)
2937             gdk_pointer_ungrab (msg->time);
2938         }
2939
2940       if (keyboard_grab &&
2941           keyboard_grab->window == window)
2942         gdk_keyboard_ungrab (msg->time);
2943
2944       if ((window != NULL) && (msg->hwnd != GetDesktopWindow ()))
2945         gdk_window_destroy_notify (window);
2946
2947       if (window == NULL || GDK_WINDOW_DESTROYED (window))
2948         break;
2949
2950       event = gdk_event_new (GDK_DESTROY);
2951       event->any.window = window;
2952
2953       append_event (event);
2954
2955       return_val = TRUE;
2956       break;
2957
2958     case WM_DISPLAYCHANGE:
2959       handle_display_change ();
2960       break;
2961
2962     case WM_DESTROYCLIPBOARD:
2963       if (!_ignore_destroy_clipboard)
2964         {
2965           event = gdk_event_new (GDK_SELECTION_CLEAR);
2966           event->selection.window = window;
2967           event->selection.selection = GDK_SELECTION_CLIPBOARD;
2968           event->selection.time = _gdk_win32_get_next_tick (msg->time);
2969           append_event (event);
2970         }
2971       else
2972         {
2973           return_val = TRUE;
2974         }
2975
2976       break;
2977
2978     case WM_RENDERFORMAT:
2979       GDK_NOTE (EVENTS, g_print (" %s", _gdk_win32_cf_to_string (msg->wParam)));
2980
2981       if (!(target = g_hash_table_lookup (_format_atom_table, GINT_TO_POINTER (msg->wParam))))
2982         {
2983           GDK_NOTE (EVENTS, g_print (" (target not found)"));
2984           return_val = TRUE;
2985           break;
2986         }
2987
2988       /* We need to render to clipboard immediately, don't call
2989        * append_event()
2990        */
2991       event = gdk_event_new (GDK_SELECTION_REQUEST);
2992       event->selection.window = window;
2993       event->selection.send_event = FALSE;
2994       event->selection.selection = GDK_SELECTION_CLIPBOARD;
2995       event->selection.target = target;
2996       event->selection.property = _gdk_selection;
2997       event->selection.requestor = msg->hwnd;
2998       event->selection.time = msg->time;
2999
3000       fixup_event (event);
3001       GDK_NOTE (EVENTS, g_print (" (calling _gdk_event_emit)"));
3002       GDK_NOTE (EVENTS, _gdk_win32_print_event (event));
3003       _gdk_event_emit (event);
3004       gdk_event_free (event);
3005
3006       /* Now the clipboard owner should have rendered */
3007       if (!_delayed_rendering_data)
3008         {
3009           GDK_NOTE (EVENTS, g_print (" (no _delayed_rendering_data?)"));
3010         }
3011       else
3012         {
3013           if (msg->wParam == CF_DIB)
3014             {
3015               _delayed_rendering_data =
3016                 _gdk_win32_selection_convert_to_dib (_delayed_rendering_data,
3017                                                      target);
3018               if (!_delayed_rendering_data)
3019                 {
3020                   g_warning ("Cannot convert to DIB from delayed rendered image");
3021                   break;
3022                 }
3023             }
3024
3025           /* The requestor is holding the clipboard, no
3026            * OpenClipboard() is required/possible
3027            */
3028           GDK_NOTE (DND,
3029                     g_print (" SetClipboardData(%s,%p)",
3030                              _gdk_win32_cf_to_string (msg->wParam),
3031                              _delayed_rendering_data));
3032
3033           API_CALL (SetClipboardData, (msg->wParam, _delayed_rendering_data));
3034           _delayed_rendering_data = NULL;
3035         }
3036       break;
3037
3038     case WM_ACTIVATE:
3039       GDK_NOTE (EVENTS, g_print (" %s%s %p",
3040                                  (LOWORD (msg->wParam) == WA_ACTIVE ? "ACTIVE" :
3041                                   (LOWORD (msg->wParam) == WA_CLICKACTIVE ? "CLICKACTIVE" :
3042                                    (LOWORD (msg->wParam) == WA_INACTIVE ? "INACTIVE" : "???"))),
3043                                  HIWORD (msg->wParam) ? " minimized" : "",
3044                                  (HWND) msg->lParam));
3045       /* We handle mouse clicks for modally-blocked windows under WM_MOUSEACTIVATE,
3046        * but we still need to deal with alt-tab, or with SetActiveWindow() type
3047        * situations.
3048        */
3049       if (is_modally_blocked (window) && LOWORD (msg->wParam) == WA_ACTIVE)
3050         {
3051           GdkWindow *modal_current = _gdk_modal_current ();
3052           SetActiveWindow (GDK_WINDOW_HWND (modal_current));
3053           *ret_valp = 0;
3054           return_val = TRUE;
3055           break;
3056         }
3057
3058       /* Bring any tablet contexts to the top of the overlap order when
3059        * one of our windows is activated.
3060        * NOTE: It doesn't seem to work well if it is done in WM_ACTIVATEAPP
3061        * instead
3062        */
3063       if (LOWORD(msg->wParam) != WA_INACTIVE)
3064         _gdk_input_set_tablet_active ();
3065       break;
3066
3067     case WM_ACTIVATEAPP:
3068       GDK_NOTE (EVENTS, g_print (" %s thread: %I64d",
3069                                  msg->wParam ? "YES" : "NO",
3070                                  (gint64) msg->lParam));
3071       if (msg->wParam && GDK_WINDOW_IS_MAPPED (window))
3072         ensure_stacking_on_activate_app (msg, window);
3073       break;
3074
3075       /* Handle WINTAB events here, as we know that gdkinput.c will
3076        * use the fixed WT_DEFBASE as lcMsgBase, and we thus can use the
3077        * constants as case labels.
3078        */
3079     case WT_PACKET:
3080       GDK_NOTE (EVENTS, g_print (" %d %p",
3081                                  (int) msg->wParam, (gpointer) msg->lParam));
3082       goto wintab;
3083
3084     case WT_CSRCHANGE:
3085       GDK_NOTE (EVENTS, g_print (" %d %p",
3086                                  (int) msg->wParam, (gpointer) msg->lParam));
3087       goto wintab;
3088
3089     case WT_PROXIMITY:
3090       GDK_NOTE (EVENTS, g_print (" %p %d %d",
3091                                  (gpointer) msg->wParam,
3092                                  LOWORD (msg->lParam),
3093                                  HIWORD (msg->lParam)));
3094       /* Fall through */
3095     wintab:
3096
3097       event = gdk_event_new (GDK_NOTHING);
3098       event->any.window = window;
3099       g_object_ref (window);
3100
3101       if (_gdk_input_other_event (event, msg, window))
3102         append_event (event);
3103       else
3104         gdk_event_free (event);
3105
3106       break;
3107     }
3108
3109 done:
3110
3111   if (window)
3112     g_object_unref (window);
3113
3114 #undef return
3115   return return_val;
3116 }
3117
3118 void
3119 _gdk_win32_display_queue_events (GdkDisplay *display)
3120 {
3121   MSG msg;
3122
3123   if (modal_win32_dialog != NULL)
3124     return;
3125
3126   while (!_gdk_event_queue_find_first (display) &&
3127          PeekMessageW (&msg, NULL, 0, 0, PM_REMOVE))
3128     {
3129       TranslateMessage (&msg);
3130       DispatchMessageW (&msg);
3131     }
3132 }
3133
3134 static gboolean
3135 gdk_event_prepare (GSource *source,
3136                    gint    *timeout)
3137 {
3138   MSG msg;
3139   gboolean retval;
3140
3141   GDK_THREADS_ENTER ();
3142
3143   *timeout = -1;
3144
3145   retval = (_gdk_event_queue_find_first (_gdk_display) != NULL ||
3146             (modal_win32_dialog == NULL &&
3147              PeekMessageW (&msg, NULL, 0, 0, PM_NOREMOVE)));
3148
3149   GDK_THREADS_LEAVE ();
3150
3151   return retval;
3152 }
3153
3154 static gboolean
3155 gdk_event_check (GSource *source)
3156 {
3157   MSG msg;
3158   gboolean retval;
3159
3160   GDK_THREADS_ENTER ();
3161
3162   if (event_poll_fd.revents & G_IO_IN)
3163     {
3164       retval = (_gdk_event_queue_find_first (_gdk_display) != NULL ||
3165                 (modal_win32_dialog == NULL &&
3166                  PeekMessageW (&msg, NULL, 0, 0, PM_NOREMOVE)));
3167     }
3168   else
3169     {
3170       retval = FALSE;
3171     }
3172
3173   GDK_THREADS_LEAVE ();
3174
3175   return retval;
3176 }
3177
3178 static gboolean
3179 gdk_event_dispatch (GSource     *source,
3180                     GSourceFunc  callback,
3181                     gpointer     user_data)
3182 {
3183   GdkEvent *event;
3184
3185   GDK_THREADS_ENTER ();
3186
3187   _gdk_win32_display_queue_events (_gdk_display);
3188   event = _gdk_event_unqueue (_gdk_display);
3189
3190   if (event)
3191     {
3192       _gdk_event_emit (event);
3193
3194       gdk_event_free (event);
3195
3196       /* Do drag & drop if it is still pending */
3197       if (_dnd_source_state == GDK_WIN32_DND_PENDING)
3198         {
3199           _dnd_source_state = GDK_WIN32_DND_DRAGGING;
3200           _gdk_win32_dnd_do_dragdrop ();
3201           _dnd_source_state = GDK_WIN32_DND_NONE;
3202         }
3203     }
3204
3205   GDK_THREADS_LEAVE ();
3206
3207   return TRUE;
3208 }
3209
3210 void
3211 gdk_win32_set_modal_dialog_libgtk_only (HWND window)
3212 {
3213   modal_win32_dialog = window;
3214 }
3215
3216 static gboolean
3217 is_modally_blocked (GdkWindow *window)
3218 {
3219   GdkWindow *modal_current = _gdk_modal_current ();
3220   return modal_current != NULL ? gdk_window_get_toplevel (window) != modal_current : FALSE;
3221 }
3222
3223 static void
3224 check_for_too_much_data (GdkEvent *event)
3225 {
3226   if (event->client.data.l[1] ||
3227       event->client.data.l[2] ||
3228       event->client.data.l[3] ||
3229       event->client.data.l[4])
3230     {
3231       g_warning ("Only four bytes of data are passed in client messages on Win32\n");
3232     }
3233 }
3234
3235 gboolean
3236 _gdk_win32_display_send_client_message (GdkDisplay     *display,
3237                                         GdkEvent       *event,
3238                                         GdkNativeWindow winid)
3239 {
3240   check_for_too_much_data (event);
3241
3242   return PostMessageW ((HWND) winid, client_message,
3243                        (WPARAM) event->client.message_type,
3244                        event->client.data.l[0]);
3245 }
3246
3247 void
3248 _gdk_win32_screen_broadcast_client_message (GdkScreen *screen,
3249                                      GdkEvent  *event)
3250 {
3251   check_for_too_much_data (event);
3252
3253   PostMessageW (HWND_BROADCAST, client_message,
3254                (WPARAM) event->client.message_type,
3255                 event->client.data.l[0]);
3256 }
3257
3258 void
3259 _gdk_win32_display_sync (GdkDisplay * display)
3260 {
3261   MSG msg;
3262
3263   g_return_if_fail (display == _gdk_display);
3264
3265   /* Process all messages currently available */
3266   while (PeekMessageW (&msg, NULL, 0, 0, PM_REMOVE))
3267     DispatchMessageW (&msg);
3268 }
3269