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