src/gtk/toplevel.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/toplevel.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 // ============================================================================
  14 // declarations
  15 // ============================================================================
  16
  17 // ----------------------------------------------------------------------------
  18 // headers
  19 // ----------------------------------------------------------------------------
  20
  21 #ifdef __VMS
  22 #define XIconifyWindow XICONIFYWINDOW
  23 #endif
  24
  25 #include "wx/toplevel.h"
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/frame.h"
  29     #include "wx/icon.h"
  30     #include "wx/log.h"
  31     #include "wx/app.h"
  32 #endif
  33
  34 #include "wx/gtk/private.h"
  35 #include "wx/evtloop.h"
  36 #include "wx/sysopt.h"
  37
  38 #include <gtk/gtk.h>
  39 #include <gdk/gdkx.h>
  40
  41 #include "wx/gtk/private/win_gtk.h"
  42
  43 #include "wx/unix/utilsx11.h"
  44
  45 // XA_CARDINAL
  46 #include <X11/Xatom.h>
  47
  48 #if wxUSE_LIBHILDON
  49     #include <hildon-widgets/hildon-program.h>
  50     #include <hildon-widgets/hildon-window.h>
  51 #endif // wxUSE_LIBHILDON
  52
  53 #if wxUSE_LIBHILDON2
  54     #include <hildon/hildon.h>
  55 #endif // wxUSE_LIBHILDON2
  56
  57 // ----------------------------------------------------------------------------
  58 // data
  59 // ----------------------------------------------------------------------------
  60
  61 // this is incremented while a modal dialog is shown
  62 int wxOpenModalDialogsCount = 0;
  63
  64 // the frame that is currently active (i.e. its child has focus). It is
  65 // used to generate wxActivateEvents
  66 static wxTopLevelWindowGTK *g_activeFrame = NULL;
  67 static wxTopLevelWindowGTK *g_lastActiveFrame = NULL;
  68
  69 // if we detect that the app has got/lost the focus, we set this variable to
  70 // either TRUE or FALSE and an activate event will be sent during the next
  71 // OnIdle() call and it is reset to -1: this value means that we shouldn't
  72 // send any activate events at all
  73 static int g_sendActivateEvent = -1;
  74
  75 //-----------------------------------------------------------------------------
  76 // RequestUserAttention related functions
  77 //-----------------------------------------------------------------------------
  78
  79 extern "C" {
  80 static void wxgtk_window_set_urgency_hint (GtkWindow *win,
  81                                            gboolean setting)
  82 {
  83     wxASSERT_MSG( gtk_widget_get_realized(GTK_WIDGET(win)),
  84                   wxT("wxgtk_window_set_urgency_hint: GdkWindow not realized") );
  85     GdkWindow *window = GTK_WIDGET(win)->window;
  86     XWMHints *wm_hints;
  87
  88     wm_hints = XGetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window));
  89
  90     if (!wm_hints)
  91         wm_hints = XAllocWMHints();
  92
  93     if (setting)
  94         wm_hints->flags |= XUrgencyHint;
  95     else
  96         wm_hints->flags &= ~XUrgencyHint;
  97
  98     XSetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window), wm_hints);
  99     XFree(wm_hints);
 100 }
 101
 102 static gboolean gtk_frame_urgency_timer_callback( wxTopLevelWindowGTK *win )
 103 {
 104 #if GTK_CHECK_VERSION(2,7,0)
 105     if(!gtk_check_version(2,7,0))
 106         gtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
 107     else
 108 #endif
 109         wxgtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
 110
 111     win->m_urgency_hint = -2;
 112     return FALSE;
 113 }
 114 }
 115
 116 //-----------------------------------------------------------------------------
 117 // "focus_in_event"
 118 //-----------------------------------------------------------------------------
 119
 120 extern "C" {
 121 static gboolean gtk_frame_focus_in_callback( GtkWidget *widget,
 122                                          GdkEvent *WXUNUSED(event),
 123                                          wxTopLevelWindowGTK *win )
 124 {
 125     switch ( g_sendActivateEvent )
 126     {
 127         case -1:
 128             // we've got focus from outside, synthetize wxActivateEvent
 129             g_sendActivateEvent = 1;
 130             break;
 131
 132         case 0:
 133             // another our window just lost focus, it was already ours before
 134             // - don't send any wxActivateEvent
 135             g_sendActivateEvent = -1;
 136             break;
 137     }
 138
 139     g_activeFrame = win;
 140     g_lastActiveFrame = g_activeFrame;
 141
 142     // wxPrintf( wxT("active: %s\n"), win->GetTitle().c_str() );
 143
 144     // MR: wxRequestUserAttention related block
 145     switch( win->m_urgency_hint )
 146     {
 147         default:
 148             g_source_remove( win->m_urgency_hint );
 149             // no break, fallthrough to remove hint too
 150         case -1:
 151 #if GTK_CHECK_VERSION(2,7,0)
 152             if(!gtk_check_version(2,7,0))
 153                 gtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
 154             else
 155 #endif
 156             {
 157                 wxgtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
 158             }
 159
 160             win->m_urgency_hint = -2;
 161             break;
 162
 163         case -2: break;
 164     }
 165
 166     wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
 167     wxActivateEvent event(wxEVT_ACTIVATE, true, g_activeFrame->GetId());
 168     event.SetEventObject(g_activeFrame);
 169     g_activeFrame->HandleWindowEvent(event);
 170
 171     return FALSE;
 172 }
 173 }
 174
 175 //-----------------------------------------------------------------------------
 176 // "focus_out_event"
 177 //-----------------------------------------------------------------------------
 178
 179 extern "C" {
 180 static
 181 gboolean gtk_frame_focus_out_callback(GtkWidget * WXUNUSED(widget),
 182                                       GdkEventFocus *WXUNUSED(gdk_event),
 183                                       wxTopLevelWindowGTK * WXUNUSED(win))
 184 {
 185     // if the focus goes out of our app alltogether, OnIdle() will send
 186     // wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset
 187     // g_sendActivateEvent to -1
 188     g_sendActivateEvent = 0;
 189
 190     // wxASSERT_MSG( (g_activeFrame == win), wxT("TLW deactivatd although it wasn't active") );
 191
 192     // wxPrintf( wxT("inactive: %s\n"), win->GetTitle().c_str() );
 193
 194     if (g_activeFrame)
 195     {
 196         wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
 197         wxActivateEvent event(wxEVT_ACTIVATE, false, g_activeFrame->GetId());
 198         event.SetEventObject(g_activeFrame);
 199         g_activeFrame->HandleWindowEvent(event);
 200
 201         g_activeFrame = NULL;
 202     }
 203
 204     return FALSE;
 205 }
 206 }
 207
 208 //-----------------------------------------------------------------------------
 209 // "size_allocate" from m_wxwindow
 210 //-----------------------------------------------------------------------------
 211
 212 extern "C" {
 213 static void
 214 size_allocate(GtkWidget*, GtkAllocation* alloc, wxTopLevelWindowGTK* win)
 215 {
 216     if (win->m_oldClientWidth  != alloc->width ||
 217         win->m_oldClientHeight != alloc->height)
 218     {
 219         win->m_oldClientWidth  = alloc->width;
 220         win->m_oldClientHeight = alloc->height;
 221
 222         wxSize size(win->m_widget->allocation.width,
 223                     win->m_widget->allocation.height);
 224         size += win->m_decorSize;
 225         win->m_width  = size.x;
 226         win->m_height = size.y;
 227
 228         if (!win->IsIconized())
 229         {
 230             wxSizeEvent event(size, win->GetId());
 231             event.SetEventObject(win);
 232             win->HandleWindowEvent(event);
 233         }
 234         // else the window is currently unmapped, don't generate size events
 235     }
 236 }
 237 }
 238
 239 // ----------------------------------------------------------------------------
 240 // "size_request"
 241 // ----------------------------------------------------------------------------
 242
 243 extern "C" {
 244 static
 245 void wxgtk_tlw_size_request_callback(GtkWidget * WXUNUSED(widget),
 246                                      GtkRequisition *requisition,
 247                                      wxTopLevelWindowGTK *win)
 248 {
 249     // we must return the size of the window without WM decorations, otherwise
 250     // GTK+ gets confused, so don't call just GetSize() here
 251     win->GTKDoGetSize(&requisition->width, &requisition->height);
 252 }
 253 }
 254
 255 //-----------------------------------------------------------------------------
 256 // "delete_event"
 257 //-----------------------------------------------------------------------------
 258
 259 extern "C" {
 260 static gboolean
 261 gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget),
 262                            GdkEvent *WXUNUSED(event),
 263                            wxTopLevelWindowGTK *win )
 264 {
 265     if (win->IsEnabled() &&
 266         (wxOpenModalDialogsCount == 0 || (win->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) ||
 267          win->IsGrabbed()))
 268         win->Close();
 269
 270     return TRUE;
 271 }
 272 }
 273
 274 //-----------------------------------------------------------------------------
 275 // "configure_event"
 276 //-----------------------------------------------------------------------------
 277
 278 extern "C" {
 279 static gboolean
 280 gtk_frame_configure_callback( GtkWidget* widget,
 281                               GdkEventConfigure *WXUNUSED(event),
 282                               wxTopLevelWindowGTK *win )
 283 {
 284     if (!win->m_hasVMT || !win->IsShown())
 285         return FALSE;
 286
 287     wxPoint point;
 288     gtk_window_get_position((GtkWindow*)widget, &point.x, &point.y);
 289
 290     win->m_x = point.x;
 291     win->m_y = point.y;
 292     wxMoveEvent mevent(point, win->GetId());
 293     mevent.SetEventObject( win );
 294     win->HandleWindowEvent( mevent );
 295
 296     return FALSE;
 297 }
 298 }
 299
 300 //-----------------------------------------------------------------------------
 301 // "realize" from m_widget
 302 //-----------------------------------------------------------------------------
 303
 304 // we cannot the WM hints and icons before the widget has been realized,
 305 // so we do this directly after realization
 306
 307 extern "C" {
 308 static void
 309 gtk_frame_realized_callback( GtkWidget * WXUNUSED(widget),
 310                              wxTopLevelWindowGTK *win )
 311 {
 312     gdk_window_set_decorations(win->m_widget->window,
 313                                (GdkWMDecoration)win->m_gdkDecor);
 314     gdk_window_set_functions(win->m_widget->window,
 315                                (GdkWMFunction)win->m_gdkFunc);
 316
 317     // GTK's shrinking/growing policy
 318     if ( !(win->m_gdkFunc & GDK_FUNC_RESIZE) )
 319         gtk_window_set_resizable(GTK_WINDOW(win->m_widget), FALSE);
 320     else
 321         gtk_window_set_policy(GTK_WINDOW(win->m_widget), 1, 1, 1);
 322
 323     const wxIconBundle& icons = win->GetIcons();
 324     if (icons.GetIconCount())
 325         win->SetIcons(icons);
 326
 327     if (win->HasFlag(wxFRAME_SHAPED))
 328         win->SetShape(win->m_shape); // it will really set the window shape now
 329 }
 330 }
 331
 332 //-----------------------------------------------------------------------------
 333 // "map_event" from m_widget
 334 //-----------------------------------------------------------------------------
 335
 336 extern "C" {
 337 static gboolean
 338 gtk_frame_map_callback( GtkWidget*,
 339                         GdkEvent * WXUNUSED(event),
 340                         wxTopLevelWindow *win )
 341 {
 342     const bool wasIconized = win->IsIconized();
 343     if (wasIconized)
 344     {
 345         // Because GetClientSize() returns (0,0) when IsIconized() is true,
 346         // a size event must be generated, just in case GetClientSize() was
 347         // called while iconized. This specifically happens when restoring a
 348         // tlw that was "rolled up" with some WMs.
 349         // Queue a resize rather than sending size event directly to allow
 350         // children to be made visible first.
 351         win->m_oldClientWidth = 0;
 352         gtk_widget_queue_resize(win->m_wxwindow);
 353     }
 354     // it is possible for m_isShown to be false here, see bug #9909
 355     if (win->wxWindowBase::Show(true))
 356     {
 357         wxShowEvent eventShow(win->GetId(), true);
 358         eventShow.SetEventObject(win);
 359         win->GetEventHandler()->ProcessEvent(eventShow);
 360     }
 361
 362 #if GTK_CHECK_VERSION(2,6,0)
 363     if (!gtk_check_version(2,6,0))
 364     {
 365         // restore focus-on-map setting in case ShowWithoutActivating() was called
 366         gtk_window_set_focus_on_map(GTK_WINDOW(win->m_widget), true);
 367     }
 368 #endif // GTK+ 2.6+
 369
 370     return false;
 371 }
 372 }
 373
 374 //-----------------------------------------------------------------------------
 375 // "window-state-event" from m_widget
 376 //-----------------------------------------------------------------------------
 377
 378 extern "C" {
 379 static gboolean
 380 gtk_frame_window_state_callback( GtkWidget* WXUNUSED(widget),
 381                           GdkEventWindowState *event,
 382                           wxTopLevelWindow *win )
 383 {
 384     if (event->changed_mask & GDK_WINDOW_STATE_ICONIFIED)
 385         win->SetIconizeState((event->new_window_state & GDK_WINDOW_STATE_ICONIFIED) != 0);
 386
 387     // if maximized bit changed and it is now set
 388     if (event->changed_mask & event->new_window_state & GDK_WINDOW_STATE_MAXIMIZED)
 389     {
 390         wxMaximizeEvent event(win->GetId());
 391         event.SetEventObject(win);
 392         win->HandleWindowEvent(event);
 393     }
 394
 395     return false;
 396 }
 397 }
 398
 399 //-----------------------------------------------------------------------------
 400
 401 bool wxGetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
 402 {
 403     static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
 404     Atom xproperty = gdk_x11_atom_to_xatom_for_display(
 405                         gdk_drawable_get_display(window), property);
 406     Atom type;
 407     int format;
 408     gulong nitems, bytes_after;
 409     guchar* data;
 410     Status status = XGetWindowProperty(
 411         gdk_x11_drawable_get_xdisplay(window),
 412         gdk_x11_drawable_get_xid(window),
 413         xproperty,
 414         0, 4, false, XA_CARDINAL,
 415         &type, &format, &nitems, &bytes_after, &data);
 416     const bool success = status == Success && data && nitems == 4;
 417     if (success)
 418     {
 419         long* p = (long*)data;
 420         if (left)   *left   = int(p[0]);
 421         if (right)  *right  = int(p[1]);
 422         if (top)    *top    = int(p[2]);
 423         if (bottom) *bottom = int(p[3]);
 424     }
 425     if (data)
 426         XFree(data);
 427     return success;
 428 }
 429
 430 //-----------------------------------------------------------------------------
 431 // "property_notify_event" from m_widget
 432 //-----------------------------------------------------------------------------
 433
 434 extern "C" {
 435 static gboolean property_notify_event(
 436     GtkWidget*, GdkEventProperty* event, wxTopLevelWindowGTK* win)
 437 {
 438     // Watch for changes to _NET_FRAME_EXTENTS property
 439     static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
 440     if (event->state == GDK_PROPERTY_NEW_VALUE && event->atom == property)
 441     {
 442         wxSize decorSize = win->m_decorSize;
 443         int left, right, top, bottom;
 444         if (wxGetFrameExtents(event->window, &left, &right, &top, &bottom))
 445             decorSize.Set(left + right, top + bottom);
 446
 447         win->GTKUpdateDecorSize(decorSize);
 448     }
 449     return false;
 450 }
 451 }
 452
 453 // ----------------------------------------------------------------------------
 454 // wxTopLevelWindowGTK creation
 455 // ----------------------------------------------------------------------------
 456
 457 void wxTopLevelWindowGTK::Init()
 458 {
 459     m_mainWidget = NULL;
 460     m_isIconized = false;
 461     m_fsIsShowing = false;
 462     m_themeEnabled = true;
 463     m_gdkDecor =
 464     m_gdkFunc = 0;
 465     m_grabbed = false;
 466     m_deferShow = true;
 467     m_deferShowAllowed = true;
 468     m_updateDecorSize = true;
 469
 470     m_urgency_hint = -2;
 471 }
 472
 473 bool wxTopLevelWindowGTK::Create( wxWindow *parent,
 474                                   wxWindowID id,
 475                                   const wxString& title,
 476                                   const wxPoint& pos,
 477                                   const wxSize& sizeOrig,
 478                                   long style,
 479                                   const wxString &name )
 480 {
 481     // always create a frame of some reasonable, even if arbitrary, size (at
 482     // least for MSW compatibility)
 483     wxSize size = sizeOrig;
 484     size.x = WidthDefault(size.x);
 485     size.y = HeightDefault(size.y);
 486
 487     wxTopLevelWindows.Append( this );
 488
 489     if (!PreCreation( parent, pos, size ) ||
 490         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 491     {
 492         wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") );
 493         return false;
 494     }
 495
 496     m_title = title;
 497
 498     // NB: m_widget may be !=NULL if it was created by derived class' Create,
 499     //     e.g. in wxTaskBarIconAreaGTK
 500     if (m_widget == NULL)
 501     {
 502 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 503         // we must create HildonWindow and not a normal GtkWindow as the latter
 504         // doesn't look correctly in Maemo environment and it must also be
 505         // registered with the main program object
 506         m_widget = hildon_window_new();
 507         hildon_program_add_window(wxTheApp->GetHildonProgram(),
 508                                   HILDON_WINDOW(m_widget));
 509 #else // !wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
 510         m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 511         if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 512         {
 513             // Tell WM that this is a dialog window and make it center
 514             // on parent by default (this is what GtkDialog ctor does):
 515             gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 516                                      GDK_WINDOW_TYPE_HINT_DIALOG);
 517             gtk_window_set_position(GTK_WINDOW(m_widget),
 518                                     GTK_WIN_POS_CENTER_ON_PARENT);
 519         }
 520         else
 521         {
 522             if (style & wxFRAME_TOOL_WINDOW)
 523             {
 524                 gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 525                                          GDK_WINDOW_TYPE_HINT_UTILITY);
 526
 527                 // On some WMs, like KDE, a TOOL_WINDOW will still show
 528                 // on the taskbar, but on Gnome a TOOL_WINDOW will not.
 529                 // For consistency between WMs and with Windows, we
 530                 // should set the NO_TASKBAR flag which will apply
 531                 // the set_skip_taskbar_hint if it is available,
 532                 // ensuring no taskbar entry will appear.
 533                 style |= wxFRAME_NO_TASKBAR;
 534             }
 535         }
 536 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2/!wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
 537
 538         g_object_ref(m_widget);
 539     }
 540
 541     wxWindow *topParent = wxGetTopLevelParent(m_parent);
 542     if (topParent && (((GTK_IS_WINDOW(topParent->m_widget)) &&
 543                        (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) ||
 544                        (style & wxFRAME_FLOAT_ON_PARENT)))
 545     {
 546         gtk_window_set_transient_for( GTK_WINDOW(m_widget),
 547                                       GTK_WINDOW(topParent->m_widget) );
 548     }
 549
 550     if (style & wxFRAME_NO_TASKBAR)
 551     {
 552         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE);
 553     }
 554
 555     if (style & wxSTAY_ON_TOP)
 556     {
 557         gtk_window_set_keep_above(GTK_WINDOW(m_widget), TRUE);
 558     }
 559     if (style & wxMAXIMIZE)
 560         gtk_window_maximize(GTK_WINDOW(m_widget));
 561
 562 #if 0
 563     if (!name.empty())
 564         gtk_window_set_role( GTK_WINDOW(m_widget), wxGTK_CONV( name ) );
 565 #endif
 566
 567     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
 568     GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 569
 570     g_signal_connect (m_widget, "delete_event",
 571                       G_CALLBACK (gtk_frame_delete_callback), this);
 572
 573     // m_mainWidget is a GtkVBox, holding the bars and client area (m_wxwindow)
 574     m_mainWidget = gtk_vbox_new(false, 0);
 575     gtk_widget_show( m_mainWidget );
 576     GTK_WIDGET_UNSET_FLAGS( m_mainWidget, GTK_CAN_FOCUS );
 577     gtk_container_add( GTK_CONTAINER(m_widget), m_mainWidget );
 578
 579     // m_wxwindow is the client area
 580     m_wxwindow = wxPizza::New();
 581     gtk_widget_show( m_wxwindow );
 582     gtk_container_add( GTK_CONTAINER(m_mainWidget), m_wxwindow );
 583
 584     // we donm't allow the frame to get the focus as otherwise
 585     // the frame will grab it at arbitrary focus changes
 586     GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 587
 588     if (m_parent) m_parent->AddChild( this );
 589
 590     g_signal_connect(m_wxwindow, "size_allocate",
 591         G_CALLBACK(size_allocate), this);
 592
 593     g_signal_connect (m_widget, "size_request",
 594                       G_CALLBACK (wxgtk_tlw_size_request_callback), this);
 595     PostCreation();
 596
 597     if ((m_x != -1) || (m_y != -1))
 598         gtk_widget_set_uposition( m_widget, m_x, m_y );
 599
 600     //  we cannot set MWM hints and icons before the widget has
 601     //  been realized, so we do this directly after realization
 602     g_signal_connect (m_widget, "realize",
 603                       G_CALLBACK (gtk_frame_realized_callback), this);
 604
 605     // for some reported size corrections
 606     g_signal_connect (m_widget, "map_event",
 607                       G_CALLBACK (gtk_frame_map_callback), this);
 608
 609     // for iconized state
 610     g_signal_connect (m_widget, "window_state_event",
 611                       G_CALLBACK (gtk_frame_window_state_callback), this);
 612
 613
 614     // for wxMoveEvent
 615     g_signal_connect (m_widget, "configure_event",
 616                       G_CALLBACK (gtk_frame_configure_callback), this);
 617
 618     // activation
 619     g_signal_connect_after (m_widget, "focus_in_event",
 620                       G_CALLBACK (gtk_frame_focus_in_callback), this);
 621     g_signal_connect_after (m_widget, "focus_out_event",
 622                       G_CALLBACK (gtk_frame_focus_out_callback), this);
 623
 624     gtk_widget_add_events(m_widget, GDK_PROPERTY_CHANGE_MASK);
 625     g_signal_connect(m_widget, "property_notify_event",
 626         G_CALLBACK(property_notify_event), this);
 627
 628     // translate wx decorations styles into Motif WM hints (they are recognized
 629     // by other WMs as well)
 630
 631     // always enable moving the window as we have no separate flag for enabling
 632     // it
 633     m_gdkFunc = GDK_FUNC_MOVE;
 634
 635     if ( style & wxCLOSE_BOX )
 636         m_gdkFunc |= GDK_FUNC_CLOSE;
 637
 638     if ( style & wxMINIMIZE_BOX )
 639         m_gdkFunc |= GDK_FUNC_MINIMIZE;
 640
 641     if ( style & wxMAXIMIZE_BOX )
 642         m_gdkFunc |= GDK_FUNC_MAXIMIZE;
 643
 644     if ( (style & wxSIMPLE_BORDER) || (style & wxNO_BORDER) )
 645     {
 646         m_gdkDecor = 0;
 647     }
 648     else // have border
 649     {
 650         m_gdkDecor = GDK_DECOR_BORDER;
 651
 652         if ( style & wxCAPTION )
 653             m_gdkDecor |= GDK_DECOR_TITLE;
 654
 655         if ( style & wxSYSTEM_MENU )
 656             m_gdkDecor |= GDK_DECOR_MENU;
 657
 658         if ( style & wxMINIMIZE_BOX )
 659             m_gdkDecor |= GDK_DECOR_MINIMIZE;
 660
 661         if ( style & wxMAXIMIZE_BOX )
 662             m_gdkDecor |= GDK_DECOR_MAXIMIZE;
 663
 664         if ( style & wxRESIZE_BORDER )
 665         {
 666            m_gdkFunc |= GDK_FUNC_RESIZE;
 667            m_gdkDecor |= GDK_DECOR_RESIZEH;
 668         }
 669     }
 670
 671     m_decorSize = GetCachedDecorSize();
 672     int w, h;
 673     GTKDoGetSize(&w, &h);
 674     gtk_window_set_default_size(GTK_WINDOW(m_widget), w, h);
 675
 676     return true;
 677 }
 678
 679 wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
 680 {
 681 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 682     // it can also be a (standard) dialog
 683     if ( HILDON_IS_WINDOW(m_widget) )
 684     {
 685         hildon_program_remove_window(wxTheApp->GetHildonProgram(),
 686                                      HILDON_WINDOW(m_widget));
 687     }
 688 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 689
 690     if (m_grabbed)
 691     {
 692         wxFAIL_MSG(wxT("Window still grabbed"));
 693         RemoveGrab();
 694     }
 695
 696     SendDestroyEvent();
 697
 698     // it may also be GtkScrolledWindow in the case of an MDI child
 699     if (GTK_IS_WINDOW(m_widget))
 700     {
 701         gtk_window_set_focus( GTK_WINDOW(m_widget), NULL );
 702     }
 703
 704     if (g_activeFrame == this)
 705         g_activeFrame = NULL;
 706     if (g_lastActiveFrame == this)
 707         g_lastActiveFrame = NULL;
 708 }
 709
 710 bool wxTopLevelWindowGTK::EnableCloseButton( bool enable )
 711 {
 712     if (enable)
 713         m_gdkFunc |= GDK_FUNC_CLOSE;
 714     else
 715         m_gdkFunc &= ~GDK_FUNC_CLOSE;
 716
 717     if (gtk_widget_get_realized(m_widget) && (m_widget->window))
 718         gdk_window_set_functions( m_widget->window, (GdkWMFunction)m_gdkFunc );
 719
 720     return true;
 721 }
 722
 723 bool wxTopLevelWindowGTK::ShowFullScreen(bool show, long)
 724 {
 725     if (show == m_fsIsShowing)
 726         return false; // return what?
 727
 728     m_fsIsShowing = show;
 729
 730     wxX11FullScreenMethod method =
 731         wxGetFullScreenMethodX11((WXDisplay*)GDK_DISPLAY(),
 732                                  (WXWindow)GDK_ROOT_WINDOW());
 733
 734     // NB: gtk_window_fullscreen() uses freedesktop.org's WMspec extensions
 735     //     to switch to fullscreen, which is not always available. We must
 736     //     check if WM supports the spec and use legacy methods if it
 737     //     doesn't.
 738     if ( method == wxX11_FS_WMSPEC )
 739     {
 740         if (show)
 741             gtk_window_fullscreen( GTK_WINDOW( m_widget ) );
 742         else
 743             gtk_window_unfullscreen( GTK_WINDOW( m_widget ) );
 744     }
 745     else
 746     {
 747         GdkWindow *window = m_widget->window;
 748
 749         if (show)
 750         {
 751             GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
 752             GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
 753
 754             int screen_width,screen_height;
 755             wxDisplaySize( &screen_width, &screen_height );
 756
 757             gint client_x, client_y, root_x, root_y;
 758             gint width, height;
 759
 760             m_fsSaveGdkFunc = m_gdkFunc;
 761             m_fsSaveGdkDecor = m_gdkDecor;
 762             m_gdkFunc = m_gdkDecor = 0;
 763             gdk_window_set_decorations(window, (GdkWMDecoration)0);
 764             gdk_window_set_functions(window, (GdkWMFunction)0);
 765
 766             gdk_window_get_origin (m_widget->window, &root_x, &root_y);
 767             gdk_window_get_geometry (m_widget->window, &client_x, &client_y,
 768                          &width, &height, NULL);
 769
 770             gdk_window_move_resize (m_widget->window, -client_x, -client_y,
 771                         screen_width + 1, screen_height + 1);
 772
 773             wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
 774                                     (WXWindow)GDK_ROOT_WINDOW(),
 775                                     (WXWindow)GDK_WINDOW_XWINDOW(window),
 776                                     show, &m_fsSaveFrame, method);
 777         }
 778         else // hide
 779         {
 780             m_gdkFunc = m_fsSaveGdkFunc;
 781             m_gdkDecor = m_fsSaveGdkDecor;
 782             gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor);
 783             gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
 784
 785             wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
 786                                     (WXWindow)GDK_ROOT_WINDOW(),
 787                                     (WXWindow)GDK_WINDOW_XWINDOW(window),
 788                                     show, &m_fsSaveFrame, method);
 789
 790             SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y,
 791                     m_fsSaveFrame.width, m_fsSaveFrame.height);
 792         }
 793     }
 794
 795     // documented behaviour is to show the window if it's still hidden when
 796     // showing it full screen
 797     if (show)
 798         Show();
 799
 800     return true;
 801 }
 802
 803 // ----------------------------------------------------------------------------
 804 // overridden wxWindow methods
 805 // ----------------------------------------------------------------------------
 806
 807 void wxTopLevelWindowGTK::Refresh( bool WXUNUSED(eraseBackground), const wxRect *WXUNUSED(rect) )
 808 {
 809     wxCHECK_RET( m_widget, wxT("invalid frame") );
 810
 811     gtk_widget_queue_draw( m_widget );
 812
 813     if (m_wxwindow && m_wxwindow->window)
 814         gdk_window_invalidate_rect( m_wxwindow->window, NULL, TRUE );
 815 }
 816
 817 bool wxTopLevelWindowGTK::Show( bool show )
 818 {
 819     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 820
 821     bool deferShow = show && !m_isShown && m_deferShow;
 822     if (deferShow)
 823     {
 824         deferShow = m_deferShowAllowed && !gtk_widget_get_realized(m_widget);
 825         if (deferShow)
 826         {
 827             deferShow = g_signal_handler_find(m_widget,
 828                 GSignalMatchType(G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DATA),
 829                 g_signal_lookup("property_notify_event", GTK_TYPE_WIDGET),
 830                 0, NULL, NULL, this) != 0;
 831         }
 832         GdkScreen* screen = NULL;
 833         if (deferShow)
 834         {
 835             screen = gtk_widget_get_screen(m_widget);
 836             GdkAtom atom = gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false);
 837             deferShow = gdk_x11_screen_supports_net_wm_hint(screen, atom) != 0;
 838             // If _NET_REQUEST_FRAME_EXTENTS not supported, don't allow changes
 839             // to m_decorSize, it breaks saving/restoring window size with
 840             // GetSize()/SetSize() because it makes window bigger between each
 841             // restore and save.
 842             m_updateDecorSize = deferShow;
 843         }
 844         if (deferShow)
 845         {
 846             // Fluxbox support for _NET_REQUEST_FRAME_EXTENTS is broken
 847             const char* name = gdk_x11_screen_get_window_manager_name(screen);
 848             deferShow = strcmp(name, "Fluxbox") != 0;
 849             m_updateDecorSize = deferShow;
 850         }
 851
 852         m_deferShow = deferShow;
 853     }
 854     if (deferShow)
 855     {
 856         // Initial show. If WM supports _NET_REQUEST_FRAME_EXTENTS, defer
 857         // calling gtk_widget_show() until _NET_FRAME_EXTENTS property
 858         // notification is received, so correct frame extents are known.
 859         // This allows resizing m_widget to keep the overall size in sync with
 860         // what wxWidgets expects it to be without an obvious change in the
 861         // window size immediately after it becomes visible.
 862
 863         // Realize m_widget, so m_widget->window can be used. Realizing normally
 864         // causes the widget tree to be size_allocated, which generates size
 865         // events in the wrong order. However, the size_allocates will not be
 866         // done if the allocation is not the default (1,1).
 867         const int alloc_width = m_widget->allocation.width;
 868         if (alloc_width == 1)
 869             m_widget->allocation.width = 2;
 870         gtk_widget_realize(m_widget);
 871         if (alloc_width == 1)
 872             m_widget->allocation.width = 1;
 873
 874         // send _NET_REQUEST_FRAME_EXTENTS
 875         XClientMessageEvent xevent;
 876         memset(&xevent, 0, sizeof(xevent));
 877         xevent.type = ClientMessage;
 878         xevent.window = gdk_x11_drawable_get_xid(m_widget->window);
 879         xevent.message_type = gdk_x11_atom_to_xatom_for_display(
 880             gdk_drawable_get_display(m_widget->window),
 881             gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false));
 882         xevent.format = 32;
 883         Display* display = gdk_x11_drawable_get_xdisplay(m_widget->window);
 884         XSendEvent(display, DefaultRootWindow(display), false,
 885             SubstructureNotifyMask | SubstructureRedirectMask,
 886             (XEvent*)&xevent);
 887
 888         // defer calling gtk_widget_show()
 889         m_isShown = true;
 890         return true;
 891     }
 892
 893     if (show && !gtk_widget_get_realized(m_widget))
 894     {
 895         // size_allocate signals occur in reverse order (bottom to top).
 896         // Things work better if the initial wxSizeEvents are sent (from the
 897         // top down), before the initial size_allocate signals occur.
 898         wxSizeEvent event(GetSize(), GetId());
 899         event.SetEventObject(this);
 900         HandleWindowEvent(event);
 901     }
 902
 903     bool change = base_type::Show(show);
 904
 905     if (change && !show)
 906     {
 907         // make sure window has a non-default position, so when it is shown
 908         // again, it won't be repositioned by WM as if it were a new window
 909         // Note that this must be done _after_ the window is hidden.
 910         gtk_window_move((GtkWindow*)m_widget, m_x, m_y);
 911     }
 912
 913     return change;
 914 }
 915
 916 void wxTopLevelWindowGTK::ShowWithoutActivating()
 917 {
 918     if (!m_isShown)
 919     {
 920 #if GTK_CHECK_VERSION(2,6,0)
 921         if (!gtk_check_version(2,6,0))
 922             gtk_window_set_focus_on_map(GTK_WINDOW(m_widget), false);
 923 #endif // GTK+ 2.6+
 924
 925         Show(true);
 926     }
 927 }
 928
 929 void wxTopLevelWindowGTK::Raise()
 930 {
 931     gtk_window_present( GTK_WINDOW( m_widget ) );
 932 }
 933
 934 void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
 935 {
 936     wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") );
 937 }
 938
 939 // ----------------------------------------------------------------------------
 940 // window geometry
 941 // ----------------------------------------------------------------------------
 942
 943 void wxTopLevelWindowGTK::GTKDoGetSize(int *width, int *height) const
 944 {
 945     wxSize size(m_width, m_height);
 946     size -= m_decorSize;
 947     if (size.x < 0) size.x = 0;
 948     if (size.y < 0) size.y = 0;
 949 #if wxUSE_LIBHILDON2
 950     if (width) {
 951        if (size.x == 720)
 952                *width = 696;
 953        else
 954                *width = size.x;
 955     }
 956     if (height) {
 957        if (size.y == 420)
 958                *height = 396;
 959        else if (size.y == 270)
 960                *height = 246;
 961             else
 962                *height = size.y;
 963     }
 964 #else // wxUSE_LIBHILDON2
 965     if (width)  *width  = size.x;
 966     if (height) *height = size.y;
 967 #endif // wxUSE_LIBHILDON2 /!wxUSE_LIBHILDON2
 968 }
 969
 970 void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 971 {
 972     wxCHECK_RET( m_widget, wxT("invalid frame") );
 973
 974     m_deferShowAllowed = true;
 975
 976     // deal with the position first
 977     int old_x = m_x;
 978     int old_y = m_y;
 979
 980     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
 981     {
 982         // -1 means "use existing" unless the flag above is specified
 983         if ( x != -1 )
 984             m_x = x;
 985         if ( y != -1 )
 986             m_y = y;
 987     }
 988     else // wxSIZE_ALLOW_MINUS_ONE
 989     {
 990         m_x = x;
 991         m_y = y;
 992     }
 993
 994     if ( m_x != old_x || m_y != old_y )
 995     {
 996         gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
 997     }
 998
 999     const wxSize oldSize(m_width, m_height);
1000     if (width >= 0)
1001         m_width = width;
1002     if (height >= 0)
1003         m_height = height;
1004     ConstrainSize();
1005     if (m_width != oldSize.x || m_height != oldSize.y)
1006     {
1007         int w, h;
1008         GTKDoGetSize(&w, &h);
1009         gtk_window_resize(GTK_WINDOW(m_widget), w, h);
1010
1011         GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
1012         wxSizeEvent event(GetSize(), GetId());
1013         event.SetEventObject(this);
1014         HandleWindowEvent(event);
1015     }
1016 }
1017
1018 void wxTopLevelWindowGTK::DoSetClientSize(int width, int height)
1019 {
1020     base_type::DoSetClientSize(width, height);
1021
1022     // Since client size is being explicitly set, don't change it later
1023     // Has to be done after calling base because it calls SetSize,
1024     // which sets this true
1025     m_deferShowAllowed = false;
1026 }
1027
1028 void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const
1029 {
1030     wxASSERT_MSG(m_widget, wxT("invalid frame"));
1031
1032     if ( IsIconized() )
1033     {
1034         // for consistency with wxMSW, client area is supposed to be empty for
1035         // the iconized windows
1036         if ( width )
1037             *width = 0;
1038         if ( height )
1039             *height = 0;
1040     }
1041     else
1042     {
1043         GTKDoGetSize(width, height);
1044     }
1045 }
1046
1047 void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,
1048                                           int maxW, int maxH,
1049                                           int incW, int incH )
1050 {
1051     base_type::DoSetSizeHints(minW, minH, maxW, maxH, incW, incH);
1052
1053     const wxSize minSize = GetMinSize();
1054     const wxSize maxSize = GetMaxSize();
1055     GdkGeometry hints;
1056     int hints_mask = 0;
1057     if (minSize.x > 0 || minSize.y > 0)
1058     {
1059         hints_mask |= GDK_HINT_MIN_SIZE;
1060         hints.min_width = minSize.x - m_decorSize.x;
1061         if (hints.min_width < 0)
1062             hints.min_width = 0;
1063         hints.min_height = minSize.y - m_decorSize.y;
1064         if (hints.min_height < 0)
1065             hints.min_height = 0;
1066     }
1067     if (maxSize.x > 0 || maxSize.y > 0)
1068     {
1069         hints_mask |= GDK_HINT_MAX_SIZE;
1070         hints.max_width = maxSize.x - m_decorSize.x;
1071         if (hints.max_width < 0)
1072             hints.max_width = INT_MAX;
1073         hints.max_height = maxSize.y - m_decorSize.y;
1074         if (hints.max_height < 0)
1075             hints.max_height = INT_MAX;
1076     }
1077     if (incW > 0 || incH > 0)
1078     {
1079         hints_mask |= GDK_HINT_RESIZE_INC;
1080         hints.width_inc  = incW > 0 ? incW : 1;
1081         hints.height_inc = incH > 0 ? incH : 1;
1082     }
1083     gtk_window_set_geometry_hints(
1084         (GtkWindow*)m_widget, NULL, &hints, (GdkWindowHints)hints_mask);
1085 }
1086
1087 void wxTopLevelWindowGTK::GTKUpdateDecorSize(const wxSize& decorSize)
1088 {
1089     if (!IsMaximized() && !IsFullScreen())
1090         GetCachedDecorSize() = decorSize;
1091     if (m_updateDecorSize && m_decorSize != decorSize)
1092     {
1093         const wxSize diff = decorSize - m_decorSize;
1094         m_decorSize = decorSize;
1095         bool resized = false;
1096         if (m_deferShow)
1097         {
1098             // keep overall size unchanged by shrinking m_widget
1099             int w, h;
1100             GTKDoGetSize(&w, &h);
1101             // but not if size would be less than minimum, it won't take effect
1102             const wxSize minSize = GetMinSize();
1103             if (w >= minSize.x && h >= minSize.y)
1104             {
1105                 gtk_window_resize(GTK_WINDOW(m_widget), w, h);
1106                 resized = true;
1107             }
1108         }
1109         if (!resized)
1110         {
1111             // adjust overall size to match change in frame extents
1112             m_width  += diff.x;
1113             m_height += diff.y;
1114             if (m_width  < 0) m_width  = 0;
1115             if (m_height < 0) m_height = 0;
1116             m_oldClientWidth = 0;
1117             gtk_widget_queue_resize(m_wxwindow);
1118         }
1119     }
1120     if (m_deferShow)
1121     {
1122         // gtk_widget_show() was deferred, do it now
1123         m_deferShow = false;
1124         GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
1125         wxSizeEvent sizeEvent(GetSize(), GetId());
1126         sizeEvent.SetEventObject(this);
1127         HandleWindowEvent(sizeEvent);
1128
1129         gtk_widget_show(m_widget);
1130
1131         wxShowEvent showEvent(GetId(), true);
1132         showEvent.SetEventObject(this);
1133         HandleWindowEvent(showEvent);
1134     }
1135 }
1136
1137 wxSize& wxTopLevelWindowGTK::GetCachedDecorSize()
1138 {
1139     static wxSize size[8];
1140
1141     int index = 0;
1142     // title bar
1143     if (m_gdkDecor & (GDK_DECOR_MENU | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE | GDK_DECOR_TITLE))
1144         index = 1;
1145     // border
1146     if (m_gdkDecor & GDK_DECOR_BORDER)
1147         index |= 2;
1148     // utility window decor can be different
1149     if (m_windowStyle & wxFRAME_TOOL_WINDOW)
1150         index |= 4;
1151     return size[index];
1152 }
1153
1154 void wxTopLevelWindowGTK::OnInternalIdle()
1155 {
1156     wxTopLevelWindowBase::OnInternalIdle();
1157
1158     // Synthetize activate events.
1159     if ( g_sendActivateEvent != -1 )
1160     {
1161         bool activate = g_sendActivateEvent != 0;
1162
1163         // if (!activate) wxPrintf( wxT("de") );
1164         // wxPrintf( wxT("activate\n") );
1165
1166         // do it only once
1167         g_sendActivateEvent = -1;
1168
1169         wxTheApp->SetActive(activate, (wxWindow *)g_lastActiveFrame);
1170     }
1171 }
1172
1173 // ----------------------------------------------------------------------------
1174 // frame title/icon
1175 // ----------------------------------------------------------------------------
1176
1177 void wxTopLevelWindowGTK::SetTitle( const wxString &title )
1178 {
1179     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1180
1181     if ( title == m_title )
1182         return;
1183
1184     m_title = title;
1185
1186     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
1187 }
1188
1189 void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
1190 {
1191     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1192
1193     base_type::SetIcons(icons);
1194
1195     // Setting icons before window is realized can cause a GTK assertion if
1196     // another TLW is realized before this one, and it has this one as it's
1197     // transient parent. The life demo exibits this problem.
1198     if (gtk_widget_get_realized(m_widget))
1199     {
1200         GList* list = NULL;
1201         for (size_t i = icons.GetIconCount(); i--;)
1202             list = g_list_prepend(list, icons.GetIconByIndex(i).GetPixbuf());
1203         gtk_window_set_icon_list(GTK_WINDOW(m_widget), list);
1204         g_list_free(list);
1205     }
1206 }
1207
1208 // ----------------------------------------------------------------------------
1209 // frame state: maximized/iconized/normal
1210 // ----------------------------------------------------------------------------
1211
1212 void wxTopLevelWindowGTK::Maximize(bool maximize)
1213 {
1214     if (maximize)
1215         gtk_window_maximize( GTK_WINDOW( m_widget ) );
1216     else
1217         gtk_window_unmaximize( GTK_WINDOW( m_widget ) );
1218 }
1219
1220 bool wxTopLevelWindowGTK::IsMaximized() const
1221 {
1222     return m_widget->window &&
1223         (gdk_window_get_state(m_widget->window) & GDK_WINDOW_STATE_MAXIMIZED);
1224 }
1225
1226 void wxTopLevelWindowGTK::Restore()
1227 {
1228     // "Present" seems similar enough to "restore"
1229     gtk_window_present( GTK_WINDOW( m_widget ) );
1230 }
1231
1232 void wxTopLevelWindowGTK::Iconize( bool iconize )
1233 {
1234     if (iconize)
1235         gtk_window_iconify( GTK_WINDOW( m_widget ) );
1236     else
1237         gtk_window_deiconify( GTK_WINDOW( m_widget ) );
1238 }
1239
1240 bool wxTopLevelWindowGTK::IsIconized() const
1241 {
1242     return m_isIconized;
1243 }
1244
1245 void wxTopLevelWindowGTK::SetIconizeState(bool iconize)
1246 {
1247     if ( iconize != m_isIconized )
1248     {
1249         m_isIconized = iconize;
1250         (void)SendIconizeEvent(iconize);
1251     }
1252 }
1253
1254 void wxTopLevelWindowGTK::AddGrab()
1255 {
1256     if (!m_grabbed)
1257     {
1258         m_grabbed = true;
1259         gtk_grab_add( m_widget );
1260         wxGUIEventLoop().Run();
1261         gtk_grab_remove( m_widget );
1262     }
1263 }
1264
1265 void wxTopLevelWindowGTK::RemoveGrab()
1266 {
1267     if (m_grabbed)
1268     {
1269         gtk_main_quit();
1270         m_grabbed = false;
1271     }
1272 }
1273
1274
1275 // helper
1276 static bool do_shape_combine_region(GdkWindow* window, const wxRegion& region)
1277 {
1278     if (window)
1279     {
1280         if (region.IsEmpty())
1281         {
1282             gdk_window_shape_combine_mask(window, NULL, 0, 0);
1283         }
1284         else
1285         {
1286             gdk_window_shape_combine_region(window, region.GetRegion(), 0, 0);
1287             return true;
1288         }
1289     }
1290     return false;
1291 }
1292
1293
1294 bool wxTopLevelWindowGTK::SetShape(const wxRegion& region)
1295 {
1296     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
1297                  wxT("Shaped windows must be created with the wxFRAME_SHAPED style."));
1298
1299     if ( gtk_widget_get_realized(m_widget) )
1300     {
1301         if ( m_wxwindow )
1302             do_shape_combine_region(m_wxwindow->window, region);
1303
1304         return do_shape_combine_region(m_widget->window, region);
1305     }
1306     else // not realized yet
1307     {
1308         // store the shape to set, it will be really set once we're realized
1309         m_shape = region;
1310
1311         // we don't know if we're going to succeed or fail, be optimistic by
1312         // default
1313         return true;
1314     }
1315 }
1316
1317 bool wxTopLevelWindowGTK::IsActive()
1318 {
1319     return (this == (wxTopLevelWindowGTK*)g_activeFrame);
1320 }
1321
1322 void wxTopLevelWindowGTK::RequestUserAttention(int flags)
1323 {
1324     bool new_hint_value = false;
1325
1326     // FIXME: This is a workaround to focus handling problem
1327     // If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle
1328     // hasn't yet been processed, and the internal focus system is not up to date yet.
1329     // YieldFor(wxEVT_CATEGORY_UI) ensures the processing of it (hopefully it
1330     // won't have side effects) - MR
1331     wxEventLoopBase::GetActive()->YieldFor(wxEVT_CATEGORY_UI);
1332
1333     if(m_urgency_hint >= 0)
1334         g_source_remove(m_urgency_hint);
1335
1336     m_urgency_hint = -2;
1337
1338     if( gtk_widget_get_realized(m_widget) && !IsActive() )
1339     {
1340         new_hint_value = true;
1341
1342         if (flags & wxUSER_ATTENTION_INFO)
1343         {
1344             m_urgency_hint = g_timeout_add(5000, (GSourceFunc)gtk_frame_urgency_timer_callback, this);
1345         } else {
1346             m_urgency_hint = -1;
1347         }
1348     }
1349
1350 #if GTK_CHECK_VERSION(2,7,0)
1351     if(!gtk_check_version(2,7,0))
1352         gtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1353     else
1354 #endif
1355         wxgtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1356 }
1357
1358 void wxTopLevelWindowGTK::SetWindowStyleFlag( long style )
1359 {
1360     // Store which styles were changed
1361     long styleChanges = style ^ m_windowStyle;
1362
1363     // Process wxWindow styles. This also updates the internal variable
1364     // Therefore m_windowStyle bits carry now the _new_ style values
1365     wxWindow::SetWindowStyleFlag(style);
1366
1367     // just return for now if widget does not exist yet
1368     if (!m_widget)
1369         return;
1370
1371     if ( styleChanges & wxSTAY_ON_TOP )
1372     {
1373         gtk_window_set_keep_above(GTK_WINDOW(m_widget),
1374                                   m_windowStyle & wxSTAY_ON_TOP);
1375     }
1376
1377     if ( styleChanges & wxFRAME_NO_TASKBAR )
1378     {
1379         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget),
1380                                          m_windowStyle & wxFRAME_NO_TASKBAR);
1381     }
1382 }
1383
1384 /* Get the X Window between child and the root window.
1385    This should usually be the WM managed XID */
1386 static Window wxGetTopmostWindowX11(Display *dpy, Window child)
1387 {
1388     Window root, parent;
1389     Window* children;
1390     unsigned int nchildren;
1391
1392     XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1393     XFree(children);
1394
1395     while (parent != root) {
1396         child = parent;
1397         XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1398         XFree(children);
1399     }
1400
1401     return child;
1402 }
1403
1404 bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha)
1405 {
1406     if (!m_widget || !m_widget->window)
1407         return false;
1408
1409     Display* dpy = GDK_WINDOW_XDISPLAY (m_widget->window);
1410     // We need to get the X Window that has the root window as the immediate parent
1411     // and m_widget->window as a child. This should be the X Window that the WM manages and
1412     // from which the opacity property is checked from.
1413     Window win = wxGetTopmostWindowX11(dpy, GDK_WINDOW_XID (m_widget->window));
1414
1415
1416     // Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
1417     if (alpha == 0xff)
1418         XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False));
1419     else
1420     {
1421         long opacity = alpha * 0x1010101L;
1422         XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False),
1423                         XA_CARDINAL, 32, PropModeReplace,
1424                         (unsigned char *) &opacity, 1L);
1425     }
1426     XSync(dpy, False);
1427     return true;
1428 }
1429
1430 bool wxTopLevelWindowGTK::CanSetTransparent()
1431 {
1432     // allow to override automatic detection as it's far from perfect
1433     const wxString SYSOPT_TRANSPARENT = "gtk.tlw.can-set-transparent";
1434     if ( wxSystemOptions::HasOption(SYSOPT_TRANSPARENT) )
1435     {
1436         return wxSystemOptions::GetOptionInt(SYSOPT_TRANSPARENT) != 0;
1437     }
1438
1439 #if GTK_CHECK_VERSION(2,10,0)
1440     if (!gtk_check_version(2,10,0))
1441     {
1442         return (gtk_widget_is_composited (m_widget));
1443     }
1444     else
1445 #endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves
1446     {
1447         return false;
1448     }
1449
1450 #if 0 // Don't be optimistic here for the sake of wxAUI
1451     int opcode, event, error;
1452     // Check for the existence of a RGBA visual instead?
1453     return XQueryExtension(gdk_x11_get_default_xdisplay (),
1454                            "Composite", &opcode, &event, &error);
1455 #endif
1456 }