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 #ifdef GDK_WINDOWING_X11
  40 #include <gdk/gdkx.h>
  41 #endif
  42
  43 #include "wx/gtk/private/win_gtk.h"
  44
  45 #ifdef GDK_WINDOWING_X11
  46
  47 #include "wx/unix/utilsx11.h"
  48
  49 // XA_CARDINAL
  50 #include <X11/Xatom.h>
  51
  52 #endif // GDK_WINDOWING_X11
  53
  54 #if wxUSE_LIBHILDON
  55     #include <hildon-widgets/hildon-program.h>
  56     #include <hildon-widgets/hildon-window.h>
  57 #endif // wxUSE_LIBHILDON
  58
  59 #if wxUSE_LIBHILDON2
  60     #include <hildon/hildon.h>
  61 #endif // wxUSE_LIBHILDON2
  62
  63 // ----------------------------------------------------------------------------
  64 // data
  65 // ----------------------------------------------------------------------------
  66
  67 // this is incremented while a modal dialog is shown
  68 int wxOpenModalDialogsCount = 0;
  69
  70 // the frame that is currently active (i.e. its child has focus). It is
  71 // used to generate wxActivateEvents
  72 static wxTopLevelWindowGTK *g_activeFrame = NULL;
  73 static wxTopLevelWindowGTK *g_lastActiveFrame = NULL;
  74
  75 // if we detect that the app has got/lost the focus, we set this variable to
  76 // either TRUE or FALSE and an activate event will be sent during the next
  77 // OnIdle() call and it is reset to -1: this value means that we shouldn't
  78 // send any activate events at all
  79 static int g_sendActivateEvent = -1;
  80
  81 // Whether _NET_REQUEST_FRAME_EXTENTS support is working
  82 //   0 == not tested yet, 1 == working, 2 == broken
  83 static int gs_requestFrameExtentsStatus;
  84
  85 //-----------------------------------------------------------------------------
  86 // RequestUserAttention related functions
  87 //-----------------------------------------------------------------------------
  88
  89 #ifndef __WXGTK30__
  90 static void wxgtk_window_set_urgency_hint (GtkWindow *win,
  91                                            gboolean setting)
  92 {
  93 #if GTK_CHECK_VERSION(2,7,0)
  94     if (gtk_check_version(2,7,0) == NULL)
  95         gtk_window_set_urgency_hint(win, setting);
  96     else
  97 #endif
  98     {
  99 #ifdef GDK_WINDOWING_X11
 100         GdkWindow* window = gtk_widget_get_window(GTK_WIDGET(win));
 101         wxCHECK_RET(window, "wxgtk_window_set_urgency_hint: GdkWindow not realized");
 102
 103         Display* dpy = GDK_WINDOW_XDISPLAY(window);
 104         Window xid = GDK_WINDOW_XID(window);
 105         XWMHints* wm_hints = XGetWMHints(dpy, xid);
 106
 107         if (!wm_hints)
 108             wm_hints = XAllocWMHints();
 109
 110         if (setting)
 111             wm_hints->flags |= XUrgencyHint;
 112         else
 113             wm_hints->flags &= ~XUrgencyHint;
 114
 115         XSetWMHints(dpy, xid, wm_hints);
 116         XFree(wm_hints);
 117 #endif // GDK_WINDOWING_X11
 118     }
 119 }
 120 #define gtk_window_set_urgency_hint wxgtk_window_set_urgency_hint
 121 #endif
 122
 123 extern "C" {
 124 static gboolean gtk_frame_urgency_timer_callback( wxTopLevelWindowGTK *win )
 125 {
 126     gtk_window_set_urgency_hint(GTK_WINDOW(win->m_widget), false);
 127
 128     win->m_urgency_hint = -2;
 129     return FALSE;
 130 }
 131 }
 132
 133 //-----------------------------------------------------------------------------
 134 // "focus_in_event"
 135 //-----------------------------------------------------------------------------
 136
 137 extern "C" {
 138 static gboolean gtk_frame_focus_in_callback( GtkWidget *widget,
 139                                          GdkEvent *WXUNUSED(event),
 140                                          wxTopLevelWindowGTK *win )
 141 {
 142     switch ( g_sendActivateEvent )
 143     {
 144         case -1:
 145             // we've got focus from outside, synthetize wxActivateEvent
 146             g_sendActivateEvent = 1;
 147             break;
 148
 149         case 0:
 150             // another our window just lost focus, it was already ours before
 151             // - don't send any wxActivateEvent
 152             g_sendActivateEvent = -1;
 153             break;
 154     }
 155
 156     g_activeFrame = win;
 157     g_lastActiveFrame = g_activeFrame;
 158
 159     // wxPrintf( wxT("active: %s\n"), win->GetTitle().c_str() );
 160
 161     // MR: wxRequestUserAttention related block
 162     switch( win->m_urgency_hint )
 163     {
 164         default:
 165             g_source_remove( win->m_urgency_hint );
 166             // no break, fallthrough to remove hint too
 167         case -1:
 168             gtk_window_set_urgency_hint(GTK_WINDOW(widget), false);
 169             win->m_urgency_hint = -2;
 170             break;
 171
 172         case -2: break;
 173     }
 174
 175     wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
 176     wxActivateEvent event(wxEVT_ACTIVATE, true, g_activeFrame->GetId());
 177     event.SetEventObject(g_activeFrame);
 178     g_activeFrame->HandleWindowEvent(event);
 179
 180     return FALSE;
 181 }
 182 }
 183
 184 //-----------------------------------------------------------------------------
 185 // "focus_out_event"
 186 //-----------------------------------------------------------------------------
 187
 188 extern "C" {
 189 static
 190 gboolean gtk_frame_focus_out_callback(GtkWidget * WXUNUSED(widget),
 191                                       GdkEventFocus *WXUNUSED(gdk_event),
 192                                       wxTopLevelWindowGTK * WXUNUSED(win))
 193 {
 194     // if the focus goes out of our app altogether, OnIdle() will send
 195     // wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset
 196     // g_sendActivateEvent to -1
 197     g_sendActivateEvent = 0;
 198
 199     // wxASSERT_MSG( (g_activeFrame == win), wxT("TLW deactivatd although it wasn't active") );
 200
 201     // wxPrintf( wxT("inactive: %s\n"), win->GetTitle().c_str() );
 202
 203     if (g_activeFrame)
 204     {
 205         wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
 206         wxActivateEvent event(wxEVT_ACTIVATE, false, g_activeFrame->GetId());
 207         event.SetEventObject(g_activeFrame);
 208         g_activeFrame->HandleWindowEvent(event);
 209
 210         g_activeFrame = NULL;
 211     }
 212
 213     return FALSE;
 214 }
 215 }
 216
 217 //-----------------------------------------------------------------------------
 218 // "size_allocate" from m_wxwindow
 219 //-----------------------------------------------------------------------------
 220
 221 extern "C" {
 222 static void
 223 size_allocate(GtkWidget*, GtkAllocation* alloc, wxTopLevelWindowGTK* win)
 224 {
 225     if (win->m_oldClientWidth  != alloc->width ||
 226         win->m_oldClientHeight != alloc->height)
 227     {
 228         win->m_oldClientWidth  = alloc->width;
 229         win->m_oldClientHeight = alloc->height;
 230
 231         GtkAllocation a;
 232         gtk_widget_get_allocation(win->m_widget, &a);
 233         wxSize size(a.width, a.height);
 234         size += win->m_decorSize;
 235         win->m_width  = size.x;
 236         win->m_height = size.y;
 237
 238         if (!win->IsIconized())
 239         {
 240             wxSizeEvent event(size, win->GetId());
 241             event.SetEventObject(win);
 242             win->HandleWindowEvent(event);
 243         }
 244         // else the window is currently unmapped, don't generate size events
 245     }
 246 }
 247 }
 248
 249 //-----------------------------------------------------------------------------
 250 // "delete_event"
 251 //-----------------------------------------------------------------------------
 252
 253 extern "C" {
 254 static gboolean
 255 gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget),
 256                            GdkEvent *WXUNUSED(event),
 257                            wxTopLevelWindowGTK *win )
 258 {
 259     if (win->IsEnabled() &&
 260         (wxOpenModalDialogsCount == 0 || (win->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) ||
 261          win->IsGrabbed()))
 262         win->Close();
 263
 264     return TRUE;
 265 }
 266 }
 267
 268 //-----------------------------------------------------------------------------
 269 // "configure_event"
 270 //-----------------------------------------------------------------------------
 271
 272 extern "C" {
 273 static gboolean
 274 gtk_frame_configure_callback( GtkWidget* widget,
 275                               GdkEventConfigure *WXUNUSED(event),
 276                               wxTopLevelWindowGTK *win )
 277 {
 278     if (!win->m_hasVMT || !win->IsShown())
 279         return FALSE;
 280
 281     wxPoint point;
 282     gtk_window_get_position((GtkWindow*)widget, &point.x, &point.y);
 283
 284     win->m_x = point.x;
 285     win->m_y = point.y;
 286     wxMoveEvent mevent(point, win->GetId());
 287     mevent.SetEventObject( win );
 288     win->HandleWindowEvent( mevent );
 289
 290     return FALSE;
 291 }
 292 }
 293
 294 //-----------------------------------------------------------------------------
 295 // "realize" from m_widget
 296 //-----------------------------------------------------------------------------
 297
 298 // we cannot the WM hints and icons before the widget has been realized,
 299 // so we do this directly after realization
 300
 301 void wxTopLevelWindowGTK::GTKHandleRealized()
 302 {
 303     wxNonOwnedWindow::GTKHandleRealized();
 304
 305     gdk_window_set_decorations(gtk_widget_get_window(m_widget),
 306                                (GdkWMDecoration)m_gdkDecor);
 307     gdk_window_set_functions(gtk_widget_get_window(m_widget),
 308                                (GdkWMFunction)m_gdkFunc);
 309
 310     // GTK's shrinking/growing policy
 311     if ( !(m_gdkFunc & GDK_FUNC_RESIZE) )
 312         gtk_window_set_resizable(GTK_WINDOW(m_widget), FALSE);
 313 #if !GTK_CHECK_VERSION(3,0,0) && !defined(GTK_DISABLE_DEPRECATED)
 314     else
 315         gtk_window_set_policy(GTK_WINDOW(m_widget), 1, 1, 1);
 316 #endif
 317
 318     const wxIconBundle& icons = GetIcons();
 319     if (icons.GetIconCount())
 320         SetIcons(icons);
 321 }
 322
 323 //-----------------------------------------------------------------------------
 324 // "map_event" from m_widget
 325 //-----------------------------------------------------------------------------
 326
 327 extern "C" {
 328 static gboolean
 329 gtk_frame_map_callback( GtkWidget*,
 330                         GdkEvent * WXUNUSED(event),
 331                         wxTopLevelWindow *win )
 332 {
 333     const bool wasIconized = win->IsIconized();
 334     if (wasIconized)
 335     {
 336         // Because GetClientSize() returns (0,0) when IsIconized() is true,
 337         // a size event must be generated, just in case GetClientSize() was
 338         // called while iconized. This specifically happens when restoring a
 339         // tlw that was "rolled up" with some WMs.
 340         // Queue a resize rather than sending size event directly to allow
 341         // children to be made visible first.
 342         win->m_oldClientWidth = 0;
 343         gtk_widget_queue_resize(win->m_wxwindow);
 344     }
 345     // it is possible for m_isShown to be false here, see bug #9909
 346     if (win->wxWindowBase::Show(true))
 347     {
 348         wxShowEvent eventShow(win->GetId(), true);
 349         eventShow.SetEventObject(win);
 350         win->GetEventHandler()->ProcessEvent(eventShow);
 351     }
 352
 353 #if GTK_CHECK_VERSION(2,6,0)
 354     if (!gtk_check_version(2,6,0))
 355     {
 356         // restore focus-on-map setting in case ShowWithoutActivating() was called
 357         gtk_window_set_focus_on_map(GTK_WINDOW(win->m_widget), true);
 358     }
 359 #endif // GTK+ 2.6+
 360
 361     return false;
 362 }
 363 }
 364
 365 //-----------------------------------------------------------------------------
 366 // "window-state-event" from m_widget
 367 //-----------------------------------------------------------------------------
 368
 369 extern "C" {
 370 static gboolean
 371 gtk_frame_window_state_callback( GtkWidget* WXUNUSED(widget),
 372                           GdkEventWindowState *event,
 373                           wxTopLevelWindow *win )
 374 {
 375     if (event->changed_mask & GDK_WINDOW_STATE_ICONIFIED)
 376         win->SetIconizeState((event->new_window_state & GDK_WINDOW_STATE_ICONIFIED) != 0);
 377
 378     // if maximized bit changed and it is now set
 379     if (event->changed_mask & event->new_window_state & GDK_WINDOW_STATE_MAXIMIZED)
 380     {
 381         wxMaximizeEvent event(win->GetId());
 382         event.SetEventObject(win);
 383         win->HandleWindowEvent(event);
 384     }
 385
 386     return false;
 387 }
 388 }
 389
 390 //-----------------------------------------------------------------------------
 391
 392 bool wxGetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
 393 {
 394 #ifdef GDK_WINDOWING_X11
 395     static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
 396     Atom xproperty = gdk_x11_atom_to_xatom_for_display(
 397                         gdk_drawable_get_display(window), property);
 398     Atom type;
 399     int format;
 400     gulong nitems, bytes_after;
 401     guchar* data;
 402     Status status = XGetWindowProperty(
 403         gdk_x11_drawable_get_xdisplay(window),
 404         gdk_x11_drawable_get_xid(window),
 405         xproperty,
 406         0, 4, false, XA_CARDINAL,
 407         &type, &format, &nitems, &bytes_after, &data);
 408     const bool success = status == Success && data && nitems == 4;
 409     if (success)
 410     {
 411         long* p = (long*)data;
 412         if (left)   *left   = int(p[0]);
 413         if (right)  *right  = int(p[1]);
 414         if (top)    *top    = int(p[2]);
 415         if (bottom) *bottom = int(p[3]);
 416     }
 417     if (data)
 418         XFree(data);
 419     return success;
 420 #else
 421     return false;
 422 #endif
 423 }
 424
 425 //-----------------------------------------------------------------------------
 426 // "property_notify_event" from m_widget
 427 //-----------------------------------------------------------------------------
 428
 429 extern "C" {
 430 static gboolean property_notify_event(
 431     GtkWidget*, GdkEventProperty* event, wxTopLevelWindowGTK* win)
 432 {
 433     // Watch for changes to _NET_FRAME_EXTENTS property
 434     static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
 435     if (event->state == GDK_PROPERTY_NEW_VALUE && event->atom == property)
 436     {
 437         if (win->m_netFrameExtentsTimerId)
 438         {
 439             // WM support for _NET_REQUEST_FRAME_EXTENTS is working
 440             gs_requestFrameExtentsStatus = 1;
 441             g_source_remove(win->m_netFrameExtentsTimerId);
 442             win->m_netFrameExtentsTimerId = 0;
 443         }
 444
 445         wxSize decorSize = win->m_decorSize;
 446         int left, right, top, bottom;
 447         if (wxGetFrameExtents(event->window, &left, &right, &top, &bottom))
 448             decorSize.Set(left + right, top + bottom);
 449
 450         win->GTKUpdateDecorSize(decorSize);
 451     }
 452     return false;
 453 }
 454 }
 455
 456 extern "C" {
 457 static gboolean request_frame_extents_timeout(void* data)
 458 {
 459     // WM support for _NET_REQUEST_FRAME_EXTENTS is broken
 460     gs_requestFrameExtentsStatus = 2;
 461     gdk_threads_enter();
 462     wxTopLevelWindowGTK* win = static_cast<wxTopLevelWindowGTK*>(data);
 463     win->m_netFrameExtentsTimerId = 0;
 464     wxSize decorSize = win->m_decorSize;
 465     int left, right, top, bottom;
 466     if (wxGetFrameExtents(gtk_widget_get_window(win->m_widget), &left, &right, &top, &bottom))
 467         decorSize.Set(left + right, top + bottom);
 468     win->GTKUpdateDecorSize(decorSize);
 469     gdk_threads_leave();
 470     return false;
 471 }
 472 }
 473
 474 // ----------------------------------------------------------------------------
 475 // wxTopLevelWindowGTK creation
 476 // ----------------------------------------------------------------------------
 477
 478 void wxTopLevelWindowGTK::Init()
 479 {
 480     m_mainWidget = NULL;
 481     m_isIconized = false;
 482     m_fsIsShowing = false;
 483     m_themeEnabled = true;
 484     m_gdkDecor =
 485     m_gdkFunc = 0;
 486     m_grabbed = false;
 487     m_deferShow = true;
 488     m_deferShowAllowed = true;
 489     m_updateDecorSize = true;
 490     m_netFrameExtentsTimerId = 0;
 491     m_incWidth = m_incHeight = 0;
 492
 493     m_urgency_hint = -2;
 494 }
 495
 496 bool wxTopLevelWindowGTK::Create( wxWindow *parent,
 497                                   wxWindowID id,
 498                                   const wxString& title,
 499                                   const wxPoint& pos,
 500                                   const wxSize& sizeOrig,
 501                                   long style,
 502                                   const wxString &name )
 503 {
 504     // always create a frame of some reasonable, even if arbitrary, size (at
 505     // least for MSW compatibility)
 506     wxSize size = sizeOrig;
 507     size.x = WidthDefault(size.x);
 508     size.y = HeightDefault(size.y);
 509
 510     wxTopLevelWindows.Append( this );
 511
 512     if (!PreCreation( parent, pos, size ) ||
 513         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 514     {
 515         wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") );
 516         return false;
 517     }
 518
 519     m_title = title;
 520
 521     // NB: m_widget may be !=NULL if it was created by derived class' Create,
 522     //     e.g. in wxTaskBarIconAreaGTK
 523     if (m_widget == NULL)
 524     {
 525 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 526         // we must create HildonWindow and not a normal GtkWindow as the latter
 527         // doesn't look correctly in Maemo environment and it must also be
 528         // registered with the main program object
 529         m_widget = hildon_window_new();
 530         hildon_program_add_window(wxTheApp->GetHildonProgram(),
 531                                   HILDON_WINDOW(m_widget));
 532 #else // !wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
 533         m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 534         if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 535         {
 536             // Tell WM that this is a dialog window and make it center
 537             // on parent by default (this is what GtkDialog ctor does):
 538             gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 539                                      GDK_WINDOW_TYPE_HINT_DIALOG);
 540             gtk_window_set_position(GTK_WINDOW(m_widget),
 541                                     GTK_WIN_POS_CENTER_ON_PARENT);
 542         }
 543         else
 544         {
 545             if (style & wxFRAME_TOOL_WINDOW)
 546             {
 547                 gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 548                                          GDK_WINDOW_TYPE_HINT_UTILITY);
 549
 550                 // On some WMs, like KDE, a TOOL_WINDOW will still show
 551                 // on the taskbar, but on Gnome a TOOL_WINDOW will not.
 552                 // For consistency between WMs and with Windows, we
 553                 // should set the NO_TASKBAR flag which will apply
 554                 // the set_skip_taskbar_hint if it is available,
 555                 // ensuring no taskbar entry will appear.
 556                 style |= wxFRAME_NO_TASKBAR;
 557             }
 558         }
 559 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2/!wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
 560
 561         g_object_ref(m_widget);
 562     }
 563
 564     wxWindow *topParent = wxGetTopLevelParent(m_parent);
 565     if (topParent && (((GTK_IS_WINDOW(topParent->m_widget)) &&
 566                        (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) ||
 567                        (style & wxFRAME_FLOAT_ON_PARENT)))
 568     {
 569         gtk_window_set_transient_for( GTK_WINDOW(m_widget),
 570                                       GTK_WINDOW(topParent->m_widget) );
 571     }
 572
 573     if (style & wxFRAME_NO_TASKBAR)
 574     {
 575         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE);
 576     }
 577
 578     if (style & wxSTAY_ON_TOP)
 579     {
 580         gtk_window_set_keep_above(GTK_WINDOW(m_widget), TRUE);
 581     }
 582     if (style & wxMAXIMIZE)
 583         gtk_window_maximize(GTK_WINDOW(m_widget));
 584
 585 #if 0
 586     if (!name.empty())
 587         gtk_window_set_role( GTK_WINDOW(m_widget), wxGTK_CONV( name ) );
 588 #endif
 589
 590     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
 591     gtk_widget_set_can_focus(m_widget, false);
 592
 593     g_signal_connect (m_widget, "delete_event",
 594                       G_CALLBACK (gtk_frame_delete_callback), this);
 595
 596     // m_mainWidget is a GtkVBox, holding the bars and client area (m_wxwindow)
 597     m_mainWidget = gtk_vbox_new(false, 0);
 598     gtk_widget_show( m_mainWidget );
 599     gtk_widget_set_can_focus(m_mainWidget, false);
 600     gtk_container_add( GTK_CONTAINER(m_widget), m_mainWidget );
 601
 602     // m_wxwindow is the client area
 603     m_wxwindow = wxPizza::New();
 604     gtk_widget_show( m_wxwindow );
 605     gtk_container_add( GTK_CONTAINER(m_mainWidget), m_wxwindow );
 606
 607     // we donm't allow the frame to get the focus as otherwise
 608     // the frame will grab it at arbitrary focus changes
 609     gtk_widget_set_can_focus(m_wxwindow, false);
 610
 611     if (m_parent) m_parent->AddChild( this );
 612
 613     g_signal_connect(m_wxwindow, "size_allocate",
 614         G_CALLBACK(size_allocate), this);
 615
 616     PostCreation();
 617
 618 #if !GTK_CHECK_VERSION(3,0,0) && !defined(GTK_DISABLE_DEPRECATED)
 619     if ((m_x != -1) || (m_y != -1))
 620         gtk_widget_set_uposition( m_widget, m_x, m_y );
 621 #endif
 622
 623     // for some reported size corrections
 624     g_signal_connect (m_widget, "map_event",
 625                       G_CALLBACK (gtk_frame_map_callback), this);
 626
 627     // for iconized state
 628     g_signal_connect (m_widget, "window_state_event",
 629                       G_CALLBACK (gtk_frame_window_state_callback), this);
 630
 631
 632     // for wxMoveEvent
 633     g_signal_connect (m_widget, "configure_event",
 634                       G_CALLBACK (gtk_frame_configure_callback), this);
 635
 636     // activation
 637     g_signal_connect_after (m_widget, "focus_in_event",
 638                       G_CALLBACK (gtk_frame_focus_in_callback), this);
 639     g_signal_connect_after (m_widget, "focus_out_event",
 640                       G_CALLBACK (gtk_frame_focus_out_callback), this);
 641
 642     gtk_widget_add_events(m_widget, GDK_PROPERTY_CHANGE_MASK);
 643     g_signal_connect(m_widget, "property_notify_event",
 644         G_CALLBACK(property_notify_event), this);
 645
 646     // translate wx decorations styles into Motif WM hints (they are recognized
 647     // by other WMs as well)
 648
 649     // always enable moving the window as we have no separate flag for enabling
 650     // it
 651     m_gdkFunc = GDK_FUNC_MOVE;
 652
 653     if ( style & wxCLOSE_BOX )
 654         m_gdkFunc |= GDK_FUNC_CLOSE;
 655
 656     if ( style & wxMINIMIZE_BOX )
 657         m_gdkFunc |= GDK_FUNC_MINIMIZE;
 658
 659     if ( style & wxMAXIMIZE_BOX )
 660         m_gdkFunc |= GDK_FUNC_MAXIMIZE;
 661
 662     if ( (style & wxSIMPLE_BORDER) || (style & wxNO_BORDER) )
 663     {
 664         m_gdkDecor = 0;
 665     }
 666     else // have border
 667     {
 668         m_gdkDecor = GDK_DECOR_BORDER;
 669
 670         if ( style & wxCAPTION )
 671             m_gdkDecor |= GDK_DECOR_TITLE;
 672
 673         if ( style & wxSYSTEM_MENU )
 674             m_gdkDecor |= GDK_DECOR_MENU;
 675
 676         if ( style & wxMINIMIZE_BOX )
 677             m_gdkDecor |= GDK_DECOR_MINIMIZE;
 678
 679         if ( style & wxMAXIMIZE_BOX )
 680             m_gdkDecor |= GDK_DECOR_MAXIMIZE;
 681
 682         if ( style & wxRESIZE_BORDER )
 683         {
 684            m_gdkFunc |= GDK_FUNC_RESIZE;
 685            m_gdkDecor |= GDK_DECOR_RESIZEH;
 686         }
 687     }
 688
 689     // GTK sometimes chooses very small size if max size hint is not explicitly set
 690     DoSetSizeHints(m_minWidth, m_minHeight, m_maxWidth, m_maxHeight, m_incWidth, m_incHeight);
 691
 692     m_decorSize = GetCachedDecorSize();
 693     int w, h;
 694     GTKDoGetSize(&w, &h);
 695     gtk_window_set_default_size(GTK_WINDOW(m_widget), w, h);
 696
 697     return true;
 698 }
 699
 700 wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
 701 {
 702     if ( m_netFrameExtentsTimerId )
 703     {
 704         // Don't let the timer callback fire as the window pointer passed to it
 705         // will become invalid very soon.
 706         g_source_remove(m_netFrameExtentsTimerId);
 707     }
 708
 709 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 710     // it can also be a (standard) dialog
 711     if ( HILDON_IS_WINDOW(m_widget) )
 712     {
 713         hildon_program_remove_window(wxTheApp->GetHildonProgram(),
 714                                      HILDON_WINDOW(m_widget));
 715     }
 716 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 717
 718     if (m_grabbed)
 719     {
 720         wxFAIL_MSG(wxT("Window still grabbed"));
 721         RemoveGrab();
 722     }
 723
 724     SendDestroyEvent();
 725
 726     // it may also be GtkScrolledWindow in the case of an MDI child
 727     if (GTK_IS_WINDOW(m_widget))
 728     {
 729         gtk_window_set_focus( GTK_WINDOW(m_widget), NULL );
 730     }
 731
 732     if (g_activeFrame == this)
 733         g_activeFrame = NULL;
 734     if (g_lastActiveFrame == this)
 735         g_lastActiveFrame = NULL;
 736 }
 737
 738 bool wxTopLevelWindowGTK::EnableCloseButton( bool enable )
 739 {
 740     if (enable)
 741         m_gdkFunc |= GDK_FUNC_CLOSE;
 742     else
 743         m_gdkFunc &= ~GDK_FUNC_CLOSE;
 744
 745     GdkWindow* window = gtk_widget_get_window(m_widget);
 746     if (window)
 747         gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
 748
 749     return true;
 750 }
 751
 752 bool wxTopLevelWindowGTK::ShowFullScreen(bool show, long)
 753 {
 754     if (show == m_fsIsShowing)
 755         return false; // return what?
 756
 757     m_fsIsShowing = show;
 758
 759 #ifdef GDK_WINDOWING_X11
 760     wxX11FullScreenMethod method =
 761         wxGetFullScreenMethodX11((WXDisplay*)GDK_DISPLAY(),
 762                                  (WXWindow)GDK_ROOT_WINDOW());
 763
 764     // NB: gtk_window_fullscreen() uses freedesktop.org's WMspec extensions
 765     //     to switch to fullscreen, which is not always available. We must
 766     //     check if WM supports the spec and use legacy methods if it
 767     //     doesn't.
 768     if ( method == wxX11_FS_WMSPEC )
 769 #endif // GDK_WINDOWING_X11
 770     {
 771         if (show)
 772             gtk_window_fullscreen( GTK_WINDOW( m_widget ) );
 773         else
 774             gtk_window_unfullscreen( GTK_WINDOW( m_widget ) );
 775     }
 776 #ifdef GDK_WINDOWING_X11
 777     else
 778     {
 779         GdkWindow* window = gtk_widget_get_window(m_widget);
 780
 781         if (show)
 782         {
 783             GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
 784             GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
 785
 786             int screen_width,screen_height;
 787             wxDisplaySize( &screen_width, &screen_height );
 788
 789             gint client_x, client_y, root_x, root_y;
 790             gint width, height;
 791
 792             m_fsSaveGdkFunc = m_gdkFunc;
 793             m_fsSaveGdkDecor = m_gdkDecor;
 794             m_gdkFunc = m_gdkDecor = 0;
 795             gdk_window_set_decorations(window, (GdkWMDecoration)0);
 796             gdk_window_set_functions(window, (GdkWMFunction)0);
 797
 798             gdk_window_get_origin(window, &root_x, &root_y);
 799             gdk_window_get_geometry(window, &client_x, &client_y, &width, &height, NULL);
 800
 801             gdk_window_move_resize(
 802                 window, -client_x, -client_y, screen_width + 1, screen_height + 1);
 803
 804             wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
 805                                     (WXWindow)GDK_ROOT_WINDOW(),
 806                                     (WXWindow)GDK_WINDOW_XWINDOW(window),
 807                                     show, &m_fsSaveFrame, method);
 808         }
 809         else // hide
 810         {
 811             m_gdkFunc = m_fsSaveGdkFunc;
 812             m_gdkDecor = m_fsSaveGdkDecor;
 813             gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor);
 814             gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
 815
 816             wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
 817                                     (WXWindow)GDK_ROOT_WINDOW(),
 818                                     (WXWindow)GDK_WINDOW_XWINDOW(window),
 819                                     show, &m_fsSaveFrame, method);
 820
 821             SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y,
 822                     m_fsSaveFrame.width, m_fsSaveFrame.height);
 823         }
 824     }
 825 #endif // GDK_WINDOWING_X11
 826
 827     // documented behaviour is to show the window if it's still hidden when
 828     // showing it full screen
 829     if (show)
 830         Show();
 831
 832     return true;
 833 }
 834
 835 // ----------------------------------------------------------------------------
 836 // overridden wxWindow methods
 837 // ----------------------------------------------------------------------------
 838
 839 void wxTopLevelWindowGTK::Refresh( bool WXUNUSED(eraseBackground), const wxRect *WXUNUSED(rect) )
 840 {
 841     wxCHECK_RET( m_widget, wxT("invalid frame") );
 842
 843     gtk_widget_queue_draw( m_widget );
 844
 845     GdkWindow* window = NULL;
 846     if (m_wxwindow)
 847         window = gtk_widget_get_window(m_wxwindow);
 848     if (window)
 849         gdk_window_invalidate_rect(window, NULL, true);
 850 }
 851
 852 bool wxTopLevelWindowGTK::Show( bool show )
 853 {
 854     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 855
 856     bool deferShow = show && !m_isShown && m_deferShow;
 857     if (deferShow)
 858     {
 859         deferShow = gs_requestFrameExtentsStatus != 2 &&
 860             m_deferShowAllowed && !gtk_widget_get_realized(m_widget);
 861         if (deferShow)
 862         {
 863             deferShow = g_signal_handler_find(m_widget,
 864                 GSignalMatchType(G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DATA),
 865                 g_signal_lookup("property_notify_event", GTK_TYPE_WIDGET),
 866                 0, NULL, NULL, this) != 0;
 867         }
 868         GdkScreen* screen = NULL;
 869         if (deferShow)
 870         {
 871 #ifdef GDK_WINDOWING_X11
 872             screen = gtk_widget_get_screen(m_widget);
 873             GdkAtom atom = gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false);
 874             deferShow = gdk_x11_screen_supports_net_wm_hint(screen, atom) != 0;
 875 #else
 876             deferShow = false;
 877 #endif
 878             // If _NET_REQUEST_FRAME_EXTENTS not supported, don't allow changes
 879             // to m_decorSize, it breaks saving/restoring window size with
 880             // GetSize()/SetSize() because it makes window bigger between each
 881             // restore and save.
 882             m_updateDecorSize = deferShow;
 883         }
 884
 885         m_deferShow = deferShow;
 886     }
 887     if (deferShow)
 888     {
 889         // Initial show. If WM supports _NET_REQUEST_FRAME_EXTENTS, defer
 890         // calling gtk_widget_show() until _NET_FRAME_EXTENTS property
 891         // notification is received, so correct frame extents are known.
 892         // This allows resizing m_widget to keep the overall size in sync with
 893         // what wxWidgets expects it to be without an obvious change in the
 894         // window size immediately after it becomes visible.
 895
 896         // Realize m_widget, so m_widget->window can be used. Realizing normally
 897         // causes the widget tree to be size_allocated, which generates size
 898         // events in the wrong order. However, the size_allocates will not be
 899         // done if the allocation is not the default (1,1).
 900         GtkAllocation alloc;
 901         gtk_widget_get_allocation(m_widget, &alloc);
 902         const int alloc_width = alloc.width;
 903         if (alloc_width == 1)
 904         {
 905             alloc.width = 2;
 906             gtk_widget_set_allocation(m_widget, &alloc);
 907         }
 908         gtk_widget_realize(m_widget);
 909         if (alloc_width == 1)
 910         {
 911             alloc.width = 1;
 912             gtk_widget_set_allocation(m_widget, &alloc);
 913         }
 914
 915 #ifdef GDK_WINDOWING_X11
 916         // send _NET_REQUEST_FRAME_EXTENTS
 917         XClientMessageEvent xevent;
 918         memset(&xevent, 0, sizeof(xevent));
 919         xevent.type = ClientMessage;
 920         GdkWindow* window = gtk_widget_get_window(m_widget);
 921         xevent.window = gdk_x11_drawable_get_xid(window);
 922         xevent.message_type = gdk_x11_atom_to_xatom_for_display(
 923             gdk_drawable_get_display(window),
 924             gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false));
 925         xevent.format = 32;
 926         Display* display = gdk_x11_drawable_get_xdisplay(window);
 927         XSendEvent(display, DefaultRootWindow(display), false,
 928             SubstructureNotifyMask | SubstructureRedirectMask,
 929             (XEvent*)&xevent);
 930 #endif // GDK_WINDOWING_X11
 931
 932         if (gs_requestFrameExtentsStatus == 0)
 933         {
 934             // if WM does not respond to request within 1 second,
 935             // we assume support for _NET_REQUEST_FRAME_EXTENTS is not working
 936             m_netFrameExtentsTimerId =
 937                 g_timeout_add(1000, request_frame_extents_timeout, this);
 938         }
 939
 940         // defer calling gtk_widget_show()
 941         m_isShown = true;
 942         return true;
 943     }
 944
 945     if (show && !gtk_widget_get_realized(m_widget))
 946     {
 947         // size_allocate signals occur in reverse order (bottom to top).
 948         // Things work better if the initial wxSizeEvents are sent (from the
 949         // top down), before the initial size_allocate signals occur.
 950         wxSizeEvent event(GetSize(), GetId());
 951         event.SetEventObject(this);
 952         HandleWindowEvent(event);
 953     }
 954
 955     bool change = base_type::Show(show);
 956
 957     if (change && !show)
 958     {
 959         // make sure window has a non-default position, so when it is shown
 960         // again, it won't be repositioned by WM as if it were a new window
 961         // Note that this must be done _after_ the window is hidden.
 962         gtk_window_move((GtkWindow*)m_widget, m_x, m_y);
 963     }
 964
 965     return change;
 966 }
 967
 968 void wxTopLevelWindowGTK::ShowWithoutActivating()
 969 {
 970     if (!m_isShown)
 971     {
 972 #if GTK_CHECK_VERSION(2,6,0)
 973         if (!gtk_check_version(2,6,0))
 974             gtk_window_set_focus_on_map(GTK_WINDOW(m_widget), false);
 975 #endif // GTK+ 2.6+
 976
 977         Show(true);
 978     }
 979 }
 980
 981 void wxTopLevelWindowGTK::Raise()
 982 {
 983     gtk_window_present( GTK_WINDOW( m_widget ) );
 984 }
 985
 986 void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
 987 {
 988     wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") );
 989 }
 990
 991 // ----------------------------------------------------------------------------
 992 // window geometry
 993 // ----------------------------------------------------------------------------
 994
 995 void wxTopLevelWindowGTK::GTKDoGetSize(int *width, int *height) const
 996 {
 997     wxSize size(m_width, m_height);
 998     size -= m_decorSize;
 999     if (size.x < 0) size.x = 0;
1000     if (size.y < 0) size.y = 0;
1001 #if wxUSE_LIBHILDON2
1002     if (width) {
1003        if (size.x == 720)
1004                *width = 696;
1005        else
1006                *width = size.x;
1007     }
1008     if (height) {
1009        if (size.y == 420)
1010                *height = 396;
1011        else if (size.y == 270)
1012                *height = 246;
1013             else
1014                *height = size.y;
1015     }
1016 #else // wxUSE_LIBHILDON2
1017     if (width)  *width  = size.x;
1018     if (height) *height = size.y;
1019 #endif // wxUSE_LIBHILDON2 /!wxUSE_LIBHILDON2
1020 }
1021
1022 void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
1023 {
1024     wxCHECK_RET( m_widget, wxT("invalid frame") );
1025
1026     m_deferShowAllowed = true;
1027
1028     // deal with the position first
1029     int old_x = m_x;
1030     int old_y = m_y;
1031
1032     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1033     {
1034         // -1 means "use existing" unless the flag above is specified
1035         if ( x != -1 )
1036             m_x = x;
1037         if ( y != -1 )
1038             m_y = y;
1039     }
1040     else // wxSIZE_ALLOW_MINUS_ONE
1041     {
1042         m_x = x;
1043         m_y = y;
1044     }
1045
1046     if ( m_x != old_x || m_y != old_y )
1047     {
1048         gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
1049     }
1050
1051     const wxSize oldSize(m_width, m_height);
1052     if (width >= 0)
1053         m_width = width;
1054     if (height >= 0)
1055         m_height = height;
1056     ConstrainSize();
1057     if (m_width != oldSize.x || m_height != oldSize.y)
1058     {
1059         int w, h;
1060         GTKDoGetSize(&w, &h);
1061         gtk_window_resize(GTK_WINDOW(m_widget), w, h);
1062
1063         GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
1064         wxSizeEvent event(GetSize(), GetId());
1065         event.SetEventObject(this);
1066         HandleWindowEvent(event);
1067     }
1068 }
1069
1070 void wxTopLevelWindowGTK::DoSetClientSize(int width, int height)
1071 {
1072     base_type::DoSetClientSize(width, height);
1073
1074     // Since client size is being explicitly set, don't change it later
1075     // Has to be done after calling base because it calls SetSize,
1076     // which sets this true
1077     m_deferShowAllowed = false;
1078 }
1079
1080 void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const
1081 {
1082     wxASSERT_MSG(m_widget, wxT("invalid frame"));
1083
1084     if ( IsIconized() )
1085     {
1086         // for consistency with wxMSW, client area is supposed to be empty for
1087         // the iconized windows
1088         if ( width )
1089             *width = 0;
1090         if ( height )
1091             *height = 0;
1092     }
1093     else
1094     {
1095         GTKDoGetSize(width, height);
1096     }
1097 }
1098
1099 void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,
1100                                           int maxW, int maxH,
1101                                           int incW, int incH )
1102 {
1103     base_type::DoSetSizeHints(minW, minH, maxW, maxH, incW, incH);
1104     m_incWidth = incW;
1105     m_incHeight = incH;
1106
1107     const wxSize minSize = GetMinSize();
1108     const wxSize maxSize = GetMaxSize();
1109     GdkGeometry hints;
1110     // always set both min and max hints, otherwise GTK will
1111     // make assumptions we don't want about the unset values
1112     int hints_mask = GDK_HINT_MIN_SIZE | GDK_HINT_MAX_SIZE;
1113     hints.min_width = 1;
1114     hints.min_height = 1;
1115     hints.max_width = INT_MAX;
1116     hints.max_height = INT_MAX;
1117     if (minSize.x > m_decorSize.x)
1118         hints.min_width = minSize.x - m_decorSize.x;
1119     if (minSize.y > m_decorSize.y)
1120         hints.min_height = minSize.y - m_decorSize.y;
1121     if (maxSize.x > 0)
1122     {
1123         hints.max_width = maxSize.x - m_decorSize.x;
1124         if (hints.max_width < hints.min_width)
1125             hints.max_width = hints.min_width;
1126     }
1127     if (maxSize.y > 0)
1128     {
1129         hints.max_height = maxSize.y - m_decorSize.y;
1130         if (hints.max_height < hints.min_height)
1131             hints.max_height = hints.min_height;
1132     }
1133     if (incW > 0 || incH > 0)
1134     {
1135         hints_mask |= GDK_HINT_RESIZE_INC;
1136         hints.width_inc  = incW > 0 ? incW : 1;
1137         hints.height_inc = incH > 0 ? incH : 1;
1138     }
1139     gtk_window_set_geometry_hints(
1140         (GtkWindow*)m_widget, NULL, &hints, (GdkWindowHints)hints_mask);
1141 }
1142
1143 void wxTopLevelWindowGTK::GTKUpdateDecorSize(const wxSize& decorSize)
1144 {
1145     if (!IsMaximized() && !IsFullScreen())
1146         GetCachedDecorSize() = decorSize;
1147     if (m_updateDecorSize && m_decorSize != decorSize)
1148     {
1149         const wxSize diff = decorSize - m_decorSize;
1150         m_decorSize = decorSize;
1151         bool resized = false;
1152         if (m_minWidth > 0 || m_minHeight > 0 || m_maxWidth > 0 || m_maxHeight > 0)
1153         {
1154             // update size hints, they depend on m_decorSize
1155             DoSetSizeHints(m_minWidth, m_minHeight, m_maxWidth, m_maxHeight, m_incWidth, m_incHeight);
1156         }
1157         if (m_deferShow)
1158         {
1159             // keep overall size unchanged by shrinking m_widget
1160             int w, h;
1161             GTKDoGetSize(&w, &h);
1162             // but not if size would be less than minimum, it won't take effect
1163             if (w >= m_minWidth - decorSize.x && h >= m_minHeight - decorSize.y )
1164             {
1165                 gtk_window_resize(GTK_WINDOW(m_widget), w, h);
1166                 resized = true;
1167             }
1168         }
1169         if (!resized)
1170         {
1171             // adjust overall size to match change in frame extents
1172             m_width  += diff.x;
1173             m_height += diff.y;
1174             if (m_width  < 0) m_width  = 0;
1175             if (m_height < 0) m_height = 0;
1176             m_oldClientWidth = 0;
1177             gtk_widget_queue_resize(m_wxwindow);
1178         }
1179     }
1180     if (m_deferShow)
1181     {
1182         // gtk_widget_show() was deferred, do it now
1183         m_deferShow = false;
1184         GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
1185         wxSizeEvent sizeEvent(GetSize(), GetId());
1186         sizeEvent.SetEventObject(this);
1187         HandleWindowEvent(sizeEvent);
1188
1189         gtk_widget_show(m_widget);
1190
1191         wxShowEvent showEvent(GetId(), true);
1192         showEvent.SetEventObject(this);
1193         HandleWindowEvent(showEvent);
1194     }
1195 }
1196
1197 wxSize& wxTopLevelWindowGTK::GetCachedDecorSize()
1198 {
1199     static wxSize size[8];
1200
1201     int index = 0;
1202     // title bar
1203     if (m_gdkDecor & (GDK_DECOR_MENU | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE | GDK_DECOR_TITLE))
1204         index = 1;
1205     // border
1206     if (m_gdkDecor & GDK_DECOR_BORDER)
1207         index |= 2;
1208     // utility window decor can be different
1209     if (m_windowStyle & wxFRAME_TOOL_WINDOW)
1210         index |= 4;
1211     return size[index];
1212 }
1213
1214 void wxTopLevelWindowGTK::OnInternalIdle()
1215 {
1216     wxTopLevelWindowBase::OnInternalIdle();
1217
1218     // Synthetize activate events.
1219     if ( g_sendActivateEvent != -1 )
1220     {
1221         bool activate = g_sendActivateEvent != 0;
1222
1223         // if (!activate) wxPrintf( wxT("de") );
1224         // wxPrintf( wxT("activate\n") );
1225
1226         // do it only once
1227         g_sendActivateEvent = -1;
1228
1229         wxTheApp->SetActive(activate, (wxWindow *)g_lastActiveFrame);
1230     }
1231 }
1232
1233 // ----------------------------------------------------------------------------
1234 // frame title/icon
1235 // ----------------------------------------------------------------------------
1236
1237 void wxTopLevelWindowGTK::SetTitle( const wxString &title )
1238 {
1239     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1240
1241     if ( title == m_title )
1242         return;
1243
1244     m_title = title;
1245
1246     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
1247 }
1248
1249 void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
1250 {
1251     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1252
1253     base_type::SetIcons(icons);
1254
1255     // Setting icons before window is realized can cause a GTK assertion if
1256     // another TLW is realized before this one, and it has this one as it's
1257     // transient parent. The life demo exibits this problem.
1258     if (gtk_widget_get_realized(m_widget))
1259     {
1260         GList* list = NULL;
1261         for (size_t i = icons.GetIconCount(); i--;)
1262             list = g_list_prepend(list, icons.GetIconByIndex(i).GetPixbuf());
1263         gtk_window_set_icon_list(GTK_WINDOW(m_widget), list);
1264         g_list_free(list);
1265     }
1266 }
1267
1268 // ----------------------------------------------------------------------------
1269 // frame state: maximized/iconized/normal
1270 // ----------------------------------------------------------------------------
1271
1272 void wxTopLevelWindowGTK::Maximize(bool maximize)
1273 {
1274     if (maximize)
1275         gtk_window_maximize( GTK_WINDOW( m_widget ) );
1276     else
1277         gtk_window_unmaximize( GTK_WINDOW( m_widget ) );
1278 }
1279
1280 bool wxTopLevelWindowGTK::IsMaximized() const
1281 {
1282     GdkWindow* window = NULL;
1283     if (m_widget)
1284         window = gtk_widget_get_window(m_widget);
1285     return window && (gdk_window_get_state(window) & GDK_WINDOW_STATE_MAXIMIZED);
1286 }
1287
1288 void wxTopLevelWindowGTK::Restore()
1289 {
1290     // "Present" seems similar enough to "restore"
1291     gtk_window_present( GTK_WINDOW( m_widget ) );
1292 }
1293
1294 void wxTopLevelWindowGTK::Iconize( bool iconize )
1295 {
1296     if (iconize)
1297         gtk_window_iconify( GTK_WINDOW( m_widget ) );
1298     else
1299         gtk_window_deiconify( GTK_WINDOW( m_widget ) );
1300 }
1301
1302 bool wxTopLevelWindowGTK::IsIconized() const
1303 {
1304     return m_isIconized;
1305 }
1306
1307 void wxTopLevelWindowGTK::SetIconizeState(bool iconize)
1308 {
1309     if ( iconize != m_isIconized )
1310     {
1311         m_isIconized = iconize;
1312         (void)SendIconizeEvent(iconize);
1313     }
1314 }
1315
1316 void wxTopLevelWindowGTK::AddGrab()
1317 {
1318     if (!m_grabbed)
1319     {
1320         m_grabbed = true;
1321         gtk_grab_add( m_widget );
1322         wxGUIEventLoop().Run();
1323         gtk_grab_remove( m_widget );
1324     }
1325 }
1326
1327 void wxTopLevelWindowGTK::RemoveGrab()
1328 {
1329     if (m_grabbed)
1330     {
1331         gtk_main_quit();
1332         m_grabbed = false;
1333     }
1334 }
1335
1336 bool wxTopLevelWindowGTK::IsActive()
1337 {
1338     return (this == (wxTopLevelWindowGTK*)g_activeFrame);
1339 }
1340
1341 void wxTopLevelWindowGTK::RequestUserAttention(int flags)
1342 {
1343     bool new_hint_value = false;
1344
1345     // FIXME: This is a workaround to focus handling problem
1346     // If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle
1347     // hasn't yet been processed, and the internal focus system is not up to date yet.
1348     // YieldFor(wxEVT_CATEGORY_UI) ensures the processing of it (hopefully it
1349     // won't have side effects) - MR
1350     wxEventLoopBase::GetActive()->YieldFor(wxEVT_CATEGORY_UI);
1351
1352     if(m_urgency_hint >= 0)
1353         g_source_remove(m_urgency_hint);
1354
1355     m_urgency_hint = -2;
1356
1357     if( gtk_widget_get_realized(m_widget) && !IsActive() )
1358     {
1359         new_hint_value = true;
1360
1361         if (flags & wxUSER_ATTENTION_INFO)
1362         {
1363             m_urgency_hint = g_timeout_add(5000, (GSourceFunc)gtk_frame_urgency_timer_callback, this);
1364         } else {
1365             m_urgency_hint = -1;
1366         }
1367     }
1368
1369     gtk_window_set_urgency_hint(GTK_WINDOW(m_widget), new_hint_value);
1370 }
1371
1372 void wxTopLevelWindowGTK::SetWindowStyleFlag( long style )
1373 {
1374     // Store which styles were changed
1375     long styleChanges = style ^ m_windowStyle;
1376
1377     // Process wxWindow styles. This also updates the internal variable
1378     // Therefore m_windowStyle bits carry now the _new_ style values
1379     wxWindow::SetWindowStyleFlag(style);
1380
1381     // just return for now if widget does not exist yet
1382     if (!m_widget)
1383         return;
1384
1385     if ( styleChanges & wxSTAY_ON_TOP )
1386     {
1387         gtk_window_set_keep_above(GTK_WINDOW(m_widget),
1388                                   m_windowStyle & wxSTAY_ON_TOP);
1389     }
1390
1391     if ( styleChanges & wxFRAME_NO_TASKBAR )
1392     {
1393         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget),
1394                                          m_windowStyle & wxFRAME_NO_TASKBAR);
1395     }
1396 }
1397
1398 bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha)
1399 {
1400     GdkWindow* window = NULL;
1401     if (m_widget)
1402         window = gtk_widget_get_window(m_widget);
1403     if (window == NULL)
1404         return false;
1405
1406 #ifdef GDK_WINDOWING_X11
1407     Display* dpy = GDK_WINDOW_XDISPLAY(window);
1408     Window win = GDK_WINDOW_XID(window);
1409
1410     // Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
1411     if (alpha == 0xff)
1412         XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False));
1413     else
1414     {
1415         long opacity = alpha * 0x1010101L;
1416         XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False),
1417                         XA_CARDINAL, 32, PropModeReplace,
1418                         (unsigned char *) &opacity, 1L);
1419     }
1420     XSync(dpy, False);
1421     return true;
1422 #else // !GDK_WINDOWING_X11
1423     return false;
1424 #endif // GDK_WINDOWING_X11 / !GDK_WINDOWING_X11
1425 }
1426
1427 bool wxTopLevelWindowGTK::CanSetTransparent()
1428 {
1429     // allow to override automatic detection as it's far from perfect
1430     const wxString SYSOPT_TRANSPARENT = "gtk.tlw.can-set-transparent";
1431     if ( wxSystemOptions::HasOption(SYSOPT_TRANSPARENT) )
1432     {
1433         return wxSystemOptions::GetOptionInt(SYSOPT_TRANSPARENT) != 0;
1434     }
1435
1436 #if GTK_CHECK_VERSION(2,10,0)
1437     if (!gtk_check_version(2,10,0))
1438     {
1439         return gtk_widget_is_composited(m_widget) != 0;
1440     }
1441     else
1442 #endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves
1443     {
1444         return false;
1445     }
1446
1447 #if 0 // Don't be optimistic here for the sake of wxAUI
1448     int opcode, event, error;
1449     // Check for the existence of a RGBA visual instead?
1450     return XQueryExtension(gdk_x11_get_default_xdisplay (),
1451                            "Composite", &opcode, &event, &error);
1452 #endif
1453 }