src/gtk/toplevel.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/gtk/toplevel.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 // ============================================================================
  14 // declarations
  15 // ============================================================================
  16
  17 // ----------------------------------------------------------------------------
  18 // headers
  19 // ----------------------------------------------------------------------------
  20
  21 #ifdef __VMS
  22 #define XIconifyWindow XICONIFYWINDOW
  23 #endif
  24
  25 #include "wx/toplevel.h"
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/frame.h"
  29     #include "wx/icon.h"
  30     #include "wx/log.h"
  31     #include "wx/app.h"
  32 #endif
  33
  34 #include "wx/gtk/private.h"
  35 #include "wx/evtloop.h"
  36 #include "wx/sysopt.h"
  37
  38 #include <gtk/gtk.h>
  39 #include <gdk/gdkx.h>
  40
  41 #include "wx/gtk/private/win_gtk.h"
  42
  43 #include "wx/unix/utilsx11.h"
  44
  45 // XA_CARDINAL
  46 #include <X11/Xatom.h>
  47
  48 #if wxUSE_LIBHILDON
  49     #include <hildon-widgets/hildon-program.h>
  50     #include <hildon-widgets/hildon-window.h>
  51 #endif // wxUSE_LIBHILDON
  52
  53 #if wxUSE_LIBHILDON2
  54     #include <hildon/hildon.h>
  55 #endif // wxUSE_LIBHILDON2
  56
  57 // ----------------------------------------------------------------------------
  58 // data
  59 // ----------------------------------------------------------------------------
  60
  61 // this is incremented while a modal dialog is shown
  62 int wxOpenModalDialogsCount = 0;
  63
  64 // the frame that is currently active (i.e. its child has focus). It is
  65 // used to generate wxActivateEvents
  66 static wxTopLevelWindowGTK *g_activeFrame = NULL;
  67 static wxTopLevelWindowGTK *g_lastActiveFrame = NULL;
  68
  69 // if we detect that the app has got/lost the focus, we set this variable to
  70 // either TRUE or FALSE and an activate event will be sent during the next
  71 // OnIdle() call and it is reset to -1: this value means that we shouldn't
  72 // send any activate events at all
  73 static int g_sendActivateEvent = -1;
  74
  75 // Whether _NET_REQUEST_FRAME_EXTENTS support is working
  76 //   0 == not tested yet, 1 == working, 2 == broken
  77 static int gs_requestFrameExtentsStatus;
  78
  79 //-----------------------------------------------------------------------------
  80 // RequestUserAttention related functions
  81 //-----------------------------------------------------------------------------
  82
  83 extern "C" {
  84 static void wxgtk_window_set_urgency_hint (GtkWindow *win,
  85                                            gboolean setting)
  86 {
  87     GdkWindow* window = gtk_widget_get_window(GTK_WIDGET(win));
  88     wxASSERT_MSG(window, "wxgtk_window_set_urgency_hint: GdkWindow not realized");
  89     XWMHints *wm_hints;
  90
  91     wm_hints = XGetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window));
  92
  93     if (!wm_hints)
  94         wm_hints = XAllocWMHints();
  95
  96     if (setting)
  97         wm_hints->flags |= XUrgencyHint;
  98     else
  99         wm_hints->flags &= ~XUrgencyHint;
 100
 101     XSetWMHints(GDK_WINDOW_XDISPLAY(window), GDK_WINDOW_XWINDOW(window), wm_hints);
 102     XFree(wm_hints);
 103 }
 104
 105 static gboolean gtk_frame_urgency_timer_callback( wxTopLevelWindowGTK *win )
 106 {
 107 #if GTK_CHECK_VERSION(2,7,0)
 108     if(!gtk_check_version(2,7,0))
 109         gtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
 110     else
 111 #endif
 112         wxgtk_window_set_urgency_hint(GTK_WINDOW( win->m_widget ), FALSE);
 113
 114     win->m_urgency_hint = -2;
 115     return FALSE;
 116 }
 117 }
 118
 119 //-----------------------------------------------------------------------------
 120 // "focus_in_event"
 121 //-----------------------------------------------------------------------------
 122
 123 extern "C" {
 124 static gboolean gtk_frame_focus_in_callback( GtkWidget *widget,
 125                                          GdkEvent *WXUNUSED(event),
 126                                          wxTopLevelWindowGTK *win )
 127 {
 128     switch ( g_sendActivateEvent )
 129     {
 130         case -1:
 131             // we've got focus from outside, synthetize wxActivateEvent
 132             g_sendActivateEvent = 1;
 133             break;
 134
 135         case 0:
 136             // another our window just lost focus, it was already ours before
 137             // - don't send any wxActivateEvent
 138             g_sendActivateEvent = -1;
 139             break;
 140     }
 141
 142     g_activeFrame = win;
 143     g_lastActiveFrame = g_activeFrame;
 144
 145     // wxPrintf( wxT("active: %s\n"), win->GetTitle().c_str() );
 146
 147     // MR: wxRequestUserAttention related block
 148     switch( win->m_urgency_hint )
 149     {
 150         default:
 151             g_source_remove( win->m_urgency_hint );
 152             // no break, fallthrough to remove hint too
 153         case -1:
 154 #if GTK_CHECK_VERSION(2,7,0)
 155             if(!gtk_check_version(2,7,0))
 156                 gtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
 157             else
 158 #endif
 159             {
 160                 wxgtk_window_set_urgency_hint(GTK_WINDOW( widget ), FALSE);
 161             }
 162
 163             win->m_urgency_hint = -2;
 164             break;
 165
 166         case -2: break;
 167     }
 168
 169     wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
 170     wxActivateEvent event(wxEVT_ACTIVATE, true, g_activeFrame->GetId());
 171     event.SetEventObject(g_activeFrame);
 172     g_activeFrame->HandleWindowEvent(event);
 173
 174     return FALSE;
 175 }
 176 }
 177
 178 //-----------------------------------------------------------------------------
 179 // "focus_out_event"
 180 //-----------------------------------------------------------------------------
 181
 182 extern "C" {
 183 static
 184 gboolean gtk_frame_focus_out_callback(GtkWidget * WXUNUSED(widget),
 185                                       GdkEventFocus *WXUNUSED(gdk_event),
 186                                       wxTopLevelWindowGTK * WXUNUSED(win))
 187 {
 188     // if the focus goes out of our app alltogether, OnIdle() will send
 189     // wxActivateEvent, otherwise gtk_window_focus_in_callback() will reset
 190     // g_sendActivateEvent to -1
 191     g_sendActivateEvent = 0;
 192
 193     // wxASSERT_MSG( (g_activeFrame == win), wxT("TLW deactivatd although it wasn't active") );
 194
 195     // wxPrintf( wxT("inactive: %s\n"), win->GetTitle().c_str() );
 196
 197     if (g_activeFrame)
 198     {
 199         wxLogTrace(wxT("activate"), wxT("Activating frame %p (from focus_in)"), g_activeFrame);
 200         wxActivateEvent event(wxEVT_ACTIVATE, false, g_activeFrame->GetId());
 201         event.SetEventObject(g_activeFrame);
 202         g_activeFrame->HandleWindowEvent(event);
 203
 204         g_activeFrame = NULL;
 205     }
 206
 207     return FALSE;
 208 }
 209 }
 210
 211 //-----------------------------------------------------------------------------
 212 // "size_allocate" from m_wxwindow
 213 //-----------------------------------------------------------------------------
 214
 215 extern "C" {
 216 static void
 217 size_allocate(GtkWidget*, GtkAllocation* alloc, wxTopLevelWindowGTK* win)
 218 {
 219     if (win->m_oldClientWidth  != alloc->width ||
 220         win->m_oldClientHeight != alloc->height)
 221     {
 222         win->m_oldClientWidth  = alloc->width;
 223         win->m_oldClientHeight = alloc->height;
 224
 225         GtkAllocation a;
 226         gtk_widget_get_allocation(win->m_widget, &a);
 227         wxSize size(a.width, a.height);
 228         size += win->m_decorSize;
 229         win->m_width  = size.x;
 230         win->m_height = size.y;
 231
 232         if (!win->IsIconized())
 233         {
 234             wxSizeEvent event(size, win->GetId());
 235             event.SetEventObject(win);
 236             win->HandleWindowEvent(event);
 237         }
 238         // else the window is currently unmapped, don't generate size events
 239     }
 240 }
 241 }
 242
 243 // ----------------------------------------------------------------------------
 244 // "size_request"
 245 // ----------------------------------------------------------------------------
 246
 247 extern "C" {
 248 static
 249 void wxgtk_tlw_size_request_callback(GtkWidget * WXUNUSED(widget),
 250                                      GtkRequisition *requisition,
 251                                      wxTopLevelWindowGTK *win)
 252 {
 253     // we must return the size of the window without WM decorations, otherwise
 254     // GTK+ gets confused, so don't call just GetSize() here
 255     win->GTKDoGetSize(&requisition->width, &requisition->height);
 256 }
 257 }
 258
 259 //-----------------------------------------------------------------------------
 260 // "delete_event"
 261 //-----------------------------------------------------------------------------
 262
 263 extern "C" {
 264 static gboolean
 265 gtk_frame_delete_callback( GtkWidget *WXUNUSED(widget),
 266                            GdkEvent *WXUNUSED(event),
 267                            wxTopLevelWindowGTK *win )
 268 {
 269     if (win->IsEnabled() &&
 270         (wxOpenModalDialogsCount == 0 || (win->GetExtraStyle() & wxTOPLEVEL_EX_DIALOG) ||
 271          win->IsGrabbed()))
 272         win->Close();
 273
 274     return TRUE;
 275 }
 276 }
 277
 278 //-----------------------------------------------------------------------------
 279 // "configure_event"
 280 //-----------------------------------------------------------------------------
 281
 282 extern "C" {
 283 static gboolean
 284 gtk_frame_configure_callback( GtkWidget* widget,
 285                               GdkEventConfigure *WXUNUSED(event),
 286                               wxTopLevelWindowGTK *win )
 287 {
 288     if (!win->m_hasVMT || !win->IsShown())
 289         return FALSE;
 290
 291     wxPoint point;
 292     gtk_window_get_position((GtkWindow*)widget, &point.x, &point.y);
 293
 294     win->m_x = point.x;
 295     win->m_y = point.y;
 296     wxMoveEvent mevent(point, win->GetId());
 297     mevent.SetEventObject( win );
 298     win->HandleWindowEvent( mevent );
 299
 300     return FALSE;
 301 }
 302 }
 303
 304 //-----------------------------------------------------------------------------
 305 // "realize" from m_widget
 306 //-----------------------------------------------------------------------------
 307
 308 // we cannot the WM hints and icons before the widget has been realized,
 309 // so we do this directly after realization
 310
 311 void wxTopLevelWindowGTK::GTKHandleRealized()
 312 {
 313     wxNonOwnedWindow::GTKHandleRealized();
 314
 315     gdk_window_set_decorations(gtk_widget_get_window(m_widget),
 316                                (GdkWMDecoration)m_gdkDecor);
 317     gdk_window_set_functions(gtk_widget_get_window(m_widget),
 318                                (GdkWMFunction)m_gdkFunc);
 319
 320     // GTK's shrinking/growing policy
 321     if ( !(m_gdkFunc & GDK_FUNC_RESIZE) )
 322         gtk_window_set_resizable(GTK_WINDOW(m_widget), FALSE);
 323 #if !GTK_CHECK_VERSION(3,0,0) && !defined(GTK_DISABLE_DEPRECATED)
 324     else
 325         gtk_window_set_policy(GTK_WINDOW(m_widget), 1, 1, 1);
 326 #endif
 327
 328     const wxIconBundle& icons = GetIcons();
 329     if (icons.GetIconCount())
 330         SetIcons(icons);
 331 }
 332
 333 //-----------------------------------------------------------------------------
 334 // "map_event" from m_widget
 335 //-----------------------------------------------------------------------------
 336
 337 extern "C" {
 338 static gboolean
 339 gtk_frame_map_callback( GtkWidget*,
 340                         GdkEvent * WXUNUSED(event),
 341                         wxTopLevelWindow *win )
 342 {
 343     const bool wasIconized = win->IsIconized();
 344     if (wasIconized)
 345     {
 346         // Because GetClientSize() returns (0,0) when IsIconized() is true,
 347         // a size event must be generated, just in case GetClientSize() was
 348         // called while iconized. This specifically happens when restoring a
 349         // tlw that was "rolled up" with some WMs.
 350         // Queue a resize rather than sending size event directly to allow
 351         // children to be made visible first.
 352         win->m_oldClientWidth = 0;
 353         gtk_widget_queue_resize(win->m_wxwindow);
 354     }
 355     // it is possible for m_isShown to be false here, see bug #9909
 356     if (win->wxWindowBase::Show(true))
 357     {
 358         wxShowEvent eventShow(win->GetId(), true);
 359         eventShow.SetEventObject(win);
 360         win->GetEventHandler()->ProcessEvent(eventShow);
 361     }
 362
 363 #if GTK_CHECK_VERSION(2,6,0)
 364     if (!gtk_check_version(2,6,0))
 365     {
 366         // restore focus-on-map setting in case ShowWithoutActivating() was called
 367         gtk_window_set_focus_on_map(GTK_WINDOW(win->m_widget), true);
 368     }
 369 #endif // GTK+ 2.6+
 370
 371     return false;
 372 }
 373 }
 374
 375 //-----------------------------------------------------------------------------
 376 // "window-state-event" from m_widget
 377 //-----------------------------------------------------------------------------
 378
 379 extern "C" {
 380 static gboolean
 381 gtk_frame_window_state_callback( GtkWidget* WXUNUSED(widget),
 382                           GdkEventWindowState *event,
 383                           wxTopLevelWindow *win )
 384 {
 385     if (event->changed_mask & GDK_WINDOW_STATE_ICONIFIED)
 386         win->SetIconizeState((event->new_window_state & GDK_WINDOW_STATE_ICONIFIED) != 0);
 387
 388     // if maximized bit changed and it is now set
 389     if (event->changed_mask & event->new_window_state & GDK_WINDOW_STATE_MAXIMIZED)
 390     {
 391         wxMaximizeEvent event(win->GetId());
 392         event.SetEventObject(win);
 393         win->HandleWindowEvent(event);
 394     }
 395
 396     return false;
 397 }
 398 }
 399
 400 //-----------------------------------------------------------------------------
 401
 402 bool wxGetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
 403 {
 404     static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
 405     Atom xproperty = gdk_x11_atom_to_xatom_for_display(
 406                         gdk_drawable_get_display(window), property);
 407     Atom type;
 408     int format;
 409     gulong nitems, bytes_after;
 410     guchar* data;
 411     Status status = XGetWindowProperty(
 412         gdk_x11_drawable_get_xdisplay(window),
 413         gdk_x11_drawable_get_xid(window),
 414         xproperty,
 415         0, 4, false, XA_CARDINAL,
 416         &type, &format, &nitems, &bytes_after, &data);
 417     const bool success = status == Success && data && nitems == 4;
 418     if (success)
 419     {
 420         long* p = (long*)data;
 421         if (left)   *left   = int(p[0]);
 422         if (right)  *right  = int(p[1]);
 423         if (top)    *top    = int(p[2]);
 424         if (bottom) *bottom = int(p[3]);
 425     }
 426     if (data)
 427         XFree(data);
 428     return success;
 429 }
 430
 431 //-----------------------------------------------------------------------------
 432 // "property_notify_event" from m_widget
 433 //-----------------------------------------------------------------------------
 434
 435 extern "C" {
 436 static gboolean property_notify_event(
 437     GtkWidget*, GdkEventProperty* event, wxTopLevelWindowGTK* win)
 438 {
 439     // Watch for changes to _NET_FRAME_EXTENTS property
 440     static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
 441     if (event->state == GDK_PROPERTY_NEW_VALUE && event->atom == property)
 442     {
 443         if (win->m_netFrameExtentsTimerId)
 444         {
 445             // WM support for _NET_REQUEST_FRAME_EXTENTS is working
 446             gs_requestFrameExtentsStatus = 1;
 447             g_source_remove(win->m_netFrameExtentsTimerId);
 448             win->m_netFrameExtentsTimerId = 0;
 449         }
 450
 451         wxSize decorSize = win->m_decorSize;
 452         int left, right, top, bottom;
 453         if (wxGetFrameExtents(event->window, &left, &right, &top, &bottom))
 454             decorSize.Set(left + right, top + bottom);
 455
 456         win->GTKUpdateDecorSize(decorSize);
 457     }
 458     return false;
 459 }
 460 }
 461
 462 extern "C" {
 463 static gboolean request_frame_extents_timeout(void* data)
 464 {
 465     // WM support for _NET_REQUEST_FRAME_EXTENTS is broken
 466     gs_requestFrameExtentsStatus = 2;
 467     gdk_threads_enter();
 468     wxTopLevelWindowGTK* win = static_cast<wxTopLevelWindowGTK*>(data);
 469     win->m_netFrameExtentsTimerId = 0;
 470     wxSize decorSize = win->m_decorSize;
 471     int left, right, top, bottom;
 472     if (wxGetFrameExtents(gtk_widget_get_window(win->m_widget), &left, &right, &top, &bottom))
 473         decorSize.Set(left + right, top + bottom);
 474     win->GTKUpdateDecorSize(decorSize);
 475     gdk_threads_leave();
 476     return false;
 477 }
 478 }
 479
 480 // ----------------------------------------------------------------------------
 481 // wxTopLevelWindowGTK creation
 482 // ----------------------------------------------------------------------------
 483
 484 void wxTopLevelWindowGTK::Init()
 485 {
 486     m_mainWidget = NULL;
 487     m_isIconized = false;
 488     m_fsIsShowing = false;
 489     m_themeEnabled = true;
 490     m_gdkDecor =
 491     m_gdkFunc = 0;
 492     m_grabbed = false;
 493     m_deferShow = true;
 494     m_deferShowAllowed = true;
 495     m_updateDecorSize = true;
 496     m_netFrameExtentsTimerId = 0;
 497
 498     m_urgency_hint = -2;
 499 }
 500
 501 bool wxTopLevelWindowGTK::Create( wxWindow *parent,
 502                                   wxWindowID id,
 503                                   const wxString& title,
 504                                   const wxPoint& pos,
 505                                   const wxSize& sizeOrig,
 506                                   long style,
 507                                   const wxString &name )
 508 {
 509     // always create a frame of some reasonable, even if arbitrary, size (at
 510     // least for MSW compatibility)
 511     wxSize size = sizeOrig;
 512     size.x = WidthDefault(size.x);
 513     size.y = HeightDefault(size.y);
 514
 515     wxTopLevelWindows.Append( this );
 516
 517     if (!PreCreation( parent, pos, size ) ||
 518         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 519     {
 520         wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") );
 521         return false;
 522     }
 523
 524     m_title = title;
 525
 526     // NB: m_widget may be !=NULL if it was created by derived class' Create,
 527     //     e.g. in wxTaskBarIconAreaGTK
 528     if (m_widget == NULL)
 529     {
 530 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 531         // we must create HildonWindow and not a normal GtkWindow as the latter
 532         // doesn't look correctly in Maemo environment and it must also be
 533         // registered with the main program object
 534         m_widget = hildon_window_new();
 535         hildon_program_add_window(wxTheApp->GetHildonProgram(),
 536                                   HILDON_WINDOW(m_widget));
 537 #else // !wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
 538         m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 539         if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 540         {
 541             // Tell WM that this is a dialog window and make it center
 542             // on parent by default (this is what GtkDialog ctor does):
 543             gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 544                                      GDK_WINDOW_TYPE_HINT_DIALOG);
 545             gtk_window_set_position(GTK_WINDOW(m_widget),
 546                                     GTK_WIN_POS_CENTER_ON_PARENT);
 547         }
 548         else
 549         {
 550             if (style & wxFRAME_TOOL_WINDOW)
 551             {
 552                 gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 553                                          GDK_WINDOW_TYPE_HINT_UTILITY);
 554
 555                 // On some WMs, like KDE, a TOOL_WINDOW will still show
 556                 // on the taskbar, but on Gnome a TOOL_WINDOW will not.
 557                 // For consistency between WMs and with Windows, we
 558                 // should set the NO_TASKBAR flag which will apply
 559                 // the set_skip_taskbar_hint if it is available,
 560                 // ensuring no taskbar entry will appear.
 561                 style |= wxFRAME_NO_TASKBAR;
 562             }
 563         }
 564 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2/!wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
 565
 566         g_object_ref(m_widget);
 567     }
 568
 569     wxWindow *topParent = wxGetTopLevelParent(m_parent);
 570     if (topParent && (((GTK_IS_WINDOW(topParent->m_widget)) &&
 571                        (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) ||
 572                        (style & wxFRAME_FLOAT_ON_PARENT)))
 573     {
 574         gtk_window_set_transient_for( GTK_WINDOW(m_widget),
 575                                       GTK_WINDOW(topParent->m_widget) );
 576     }
 577
 578     if (style & wxFRAME_NO_TASKBAR)
 579     {
 580         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE);
 581     }
 582
 583     if (style & wxSTAY_ON_TOP)
 584     {
 585         gtk_window_set_keep_above(GTK_WINDOW(m_widget), TRUE);
 586     }
 587     if (style & wxMAXIMIZE)
 588         gtk_window_maximize(GTK_WINDOW(m_widget));
 589
 590 #if 0
 591     if (!name.empty())
 592         gtk_window_set_role( GTK_WINDOW(m_widget), wxGTK_CONV( name ) );
 593 #endif
 594
 595     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
 596     gtk_widget_set_can_focus(m_widget, false);
 597
 598     g_signal_connect (m_widget, "delete_event",
 599                       G_CALLBACK (gtk_frame_delete_callback), this);
 600
 601     // m_mainWidget is a GtkVBox, holding the bars and client area (m_wxwindow)
 602     m_mainWidget = gtk_vbox_new(false, 0);
 603     gtk_widget_show( m_mainWidget );
 604     gtk_widget_set_can_focus(m_mainWidget, false);
 605     gtk_container_add( GTK_CONTAINER(m_widget), m_mainWidget );
 606
 607     // m_wxwindow is the client area
 608     m_wxwindow = wxPizza::New();
 609     gtk_widget_show( m_wxwindow );
 610     gtk_container_add( GTK_CONTAINER(m_mainWidget), m_wxwindow );
 611
 612     // we donm't allow the frame to get the focus as otherwise
 613     // the frame will grab it at arbitrary focus changes
 614     gtk_widget_set_can_focus(m_wxwindow, false);
 615
 616     if (m_parent) m_parent->AddChild( this );
 617
 618     g_signal_connect(m_wxwindow, "size_allocate",
 619         G_CALLBACK(size_allocate), this);
 620
 621     g_signal_connect (m_widget, "size_request",
 622                       G_CALLBACK (wxgtk_tlw_size_request_callback), this);
 623     PostCreation();
 624
 625 #if !GTK_CHECK_VERSION(3,0,0) && !defined(GTK_DISABLE_DEPRECATED)
 626     if ((m_x != -1) || (m_y != -1))
 627         gtk_widget_set_uposition( m_widget, m_x, m_y );
 628 #endif
 629
 630     // for some reported size corrections
 631     g_signal_connect (m_widget, "map_event",
 632                       G_CALLBACK (gtk_frame_map_callback), this);
 633
 634     // for iconized state
 635     g_signal_connect (m_widget, "window_state_event",
 636                       G_CALLBACK (gtk_frame_window_state_callback), this);
 637
 638
 639     // for wxMoveEvent
 640     g_signal_connect (m_widget, "configure_event",
 641                       G_CALLBACK (gtk_frame_configure_callback), this);
 642
 643     // activation
 644     g_signal_connect_after (m_widget, "focus_in_event",
 645                       G_CALLBACK (gtk_frame_focus_in_callback), this);
 646     g_signal_connect_after (m_widget, "focus_out_event",
 647                       G_CALLBACK (gtk_frame_focus_out_callback), this);
 648
 649     gtk_widget_add_events(m_widget, GDK_PROPERTY_CHANGE_MASK);
 650     g_signal_connect(m_widget, "property_notify_event",
 651         G_CALLBACK(property_notify_event), this);
 652
 653     // translate wx decorations styles into Motif WM hints (they are recognized
 654     // by other WMs as well)
 655
 656     // always enable moving the window as we have no separate flag for enabling
 657     // it
 658     m_gdkFunc = GDK_FUNC_MOVE;
 659
 660     if ( style & wxCLOSE_BOX )
 661         m_gdkFunc |= GDK_FUNC_CLOSE;
 662
 663     if ( style & wxMINIMIZE_BOX )
 664         m_gdkFunc |= GDK_FUNC_MINIMIZE;
 665
 666     if ( style & wxMAXIMIZE_BOX )
 667         m_gdkFunc |= GDK_FUNC_MAXIMIZE;
 668
 669     if ( (style & wxSIMPLE_BORDER) || (style & wxNO_BORDER) )
 670     {
 671         m_gdkDecor = 0;
 672     }
 673     else // have border
 674     {
 675         m_gdkDecor = GDK_DECOR_BORDER;
 676
 677         if ( style & wxCAPTION )
 678             m_gdkDecor |= GDK_DECOR_TITLE;
 679
 680         if ( style & wxSYSTEM_MENU )
 681             m_gdkDecor |= GDK_DECOR_MENU;
 682
 683         if ( style & wxMINIMIZE_BOX )
 684             m_gdkDecor |= GDK_DECOR_MINIMIZE;
 685
 686         if ( style & wxMAXIMIZE_BOX )
 687             m_gdkDecor |= GDK_DECOR_MAXIMIZE;
 688
 689         if ( style & wxRESIZE_BORDER )
 690         {
 691            m_gdkFunc |= GDK_FUNC_RESIZE;
 692            m_gdkDecor |= GDK_DECOR_RESIZEH;
 693         }
 694     }
 695
 696     m_decorSize = GetCachedDecorSize();
 697     int w, h;
 698     GTKDoGetSize(&w, &h);
 699     gtk_window_set_default_size(GTK_WINDOW(m_widget), w, h);
 700
 701     return true;
 702 }
 703
 704 wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
 705 {
 706     if ( m_netFrameExtentsTimerId )
 707     {
 708         // Don't let the timer callback fire as the window pointer passed to it
 709         // will become invalid very soon.
 710         g_source_remove(m_netFrameExtentsTimerId);
 711     }
 712
 713 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 714     // it can also be a (standard) dialog
 715     if ( HILDON_IS_WINDOW(m_widget) )
 716     {
 717         hildon_program_remove_window(wxTheApp->GetHildonProgram(),
 718                                      HILDON_WINDOW(m_widget));
 719     }
 720 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 721
 722     if (m_grabbed)
 723     {
 724         wxFAIL_MSG(wxT("Window still grabbed"));
 725         RemoveGrab();
 726     }
 727
 728     SendDestroyEvent();
 729
 730     // it may also be GtkScrolledWindow in the case of an MDI child
 731     if (GTK_IS_WINDOW(m_widget))
 732     {
 733         gtk_window_set_focus( GTK_WINDOW(m_widget), NULL );
 734     }
 735
 736     if (g_activeFrame == this)
 737         g_activeFrame = NULL;
 738     if (g_lastActiveFrame == this)
 739         g_lastActiveFrame = NULL;
 740 }
 741
 742 bool wxTopLevelWindowGTK::EnableCloseButton( bool enable )
 743 {
 744     if (enable)
 745         m_gdkFunc |= GDK_FUNC_CLOSE;
 746     else
 747         m_gdkFunc &= ~GDK_FUNC_CLOSE;
 748
 749     GdkWindow* window = gtk_widget_get_window(m_widget);
 750     if (window)
 751         gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
 752
 753     return true;
 754 }
 755
 756 bool wxTopLevelWindowGTK::ShowFullScreen(bool show, long)
 757 {
 758     if (show == m_fsIsShowing)
 759         return false; // return what?
 760
 761     m_fsIsShowing = show;
 762
 763     wxX11FullScreenMethod method =
 764         wxGetFullScreenMethodX11((WXDisplay*)GDK_DISPLAY(),
 765                                  (WXWindow)GDK_ROOT_WINDOW());
 766
 767     // NB: gtk_window_fullscreen() uses freedesktop.org's WMspec extensions
 768     //     to switch to fullscreen, which is not always available. We must
 769     //     check if WM supports the spec and use legacy methods if it
 770     //     doesn't.
 771     if ( method == wxX11_FS_WMSPEC )
 772     {
 773         if (show)
 774             gtk_window_fullscreen( GTK_WINDOW( m_widget ) );
 775         else
 776             gtk_window_unfullscreen( GTK_WINDOW( m_widget ) );
 777     }
 778     else
 779     {
 780         GdkWindow* window = gtk_widget_get_window(m_widget);
 781
 782         if (show)
 783         {
 784             GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
 785             GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
 786
 787             int screen_width,screen_height;
 788             wxDisplaySize( &screen_width, &screen_height );
 789
 790             gint client_x, client_y, root_x, root_y;
 791             gint width, height;
 792
 793             m_fsSaveGdkFunc = m_gdkFunc;
 794             m_fsSaveGdkDecor = m_gdkDecor;
 795             m_gdkFunc = m_gdkDecor = 0;
 796             gdk_window_set_decorations(window, (GdkWMDecoration)0);
 797             gdk_window_set_functions(window, (GdkWMFunction)0);
 798
 799             gdk_window_get_origin(window, &root_x, &root_y);
 800             gdk_window_get_geometry(window, &client_x, &client_y, &width, &height, NULL);
 801
 802             gdk_window_move_resize(
 803                 window, -client_x, -client_y, screen_width + 1, screen_height + 1);
 804
 805             wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
 806                                     (WXWindow)GDK_ROOT_WINDOW(),
 807                                     (WXWindow)GDK_WINDOW_XWINDOW(window),
 808                                     show, &m_fsSaveFrame, method);
 809         }
 810         else // hide
 811         {
 812             m_gdkFunc = m_fsSaveGdkFunc;
 813             m_gdkDecor = m_fsSaveGdkDecor;
 814             gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor);
 815             gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
 816
 817             wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
 818                                     (WXWindow)GDK_ROOT_WINDOW(),
 819                                     (WXWindow)GDK_WINDOW_XWINDOW(window),
 820                                     show, &m_fsSaveFrame, method);
 821
 822             SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y,
 823                     m_fsSaveFrame.width, m_fsSaveFrame.height);
 824         }
 825     }
 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             screen = gtk_widget_get_screen(m_widget);
 872             GdkAtom atom = gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false);
 873             deferShow = gdk_x11_screen_supports_net_wm_hint(screen, atom) != 0;
 874             // If _NET_REQUEST_FRAME_EXTENTS not supported, don't allow changes
 875             // to m_decorSize, it breaks saving/restoring window size with
 876             // GetSize()/SetSize() because it makes window bigger between each
 877             // restore and save.
 878             m_updateDecorSize = deferShow;
 879         }
 880
 881         m_deferShow = deferShow;
 882     }
 883     if (deferShow)
 884     {
 885         // Initial show. If WM supports _NET_REQUEST_FRAME_EXTENTS, defer
 886         // calling gtk_widget_show() until _NET_FRAME_EXTENTS property
 887         // notification is received, so correct frame extents are known.
 888         // This allows resizing m_widget to keep the overall size in sync with
 889         // what wxWidgets expects it to be without an obvious change in the
 890         // window size immediately after it becomes visible.
 891
 892         // Realize m_widget, so m_widget->window can be used. Realizing normally
 893         // causes the widget tree to be size_allocated, which generates size
 894         // events in the wrong order. However, the size_allocates will not be
 895         // done if the allocation is not the default (1,1).
 896         GtkAllocation alloc;
 897         gtk_widget_get_allocation(m_widget, &alloc);
 898         const int alloc_width = alloc.width;
 899         if (alloc_width == 1)
 900         {
 901             alloc.width = 2;
 902             gtk_widget_set_allocation(m_widget, &alloc);
 903         }
 904         gtk_widget_realize(m_widget);
 905         if (alloc_width == 1)
 906         {
 907             alloc.width = 1;
 908             gtk_widget_set_allocation(m_widget, &alloc);
 909         }
 910
 911         // send _NET_REQUEST_FRAME_EXTENTS
 912         XClientMessageEvent xevent;
 913         memset(&xevent, 0, sizeof(xevent));
 914         xevent.type = ClientMessage;
 915         GdkWindow* window = gtk_widget_get_window(m_widget);
 916         xevent.window = gdk_x11_drawable_get_xid(window);
 917         xevent.message_type = gdk_x11_atom_to_xatom_for_display(
 918             gdk_drawable_get_display(window),
 919             gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false));
 920         xevent.format = 32;
 921         Display* display = gdk_x11_drawable_get_xdisplay(window);
 922         XSendEvent(display, DefaultRootWindow(display), false,
 923             SubstructureNotifyMask | SubstructureRedirectMask,
 924             (XEvent*)&xevent);
 925
 926         if (gs_requestFrameExtentsStatus == 0)
 927         {
 928             // if WM does not respond to request within 1 second,
 929             // we assume support for _NET_REQUEST_FRAME_EXTENTS is not working
 930             m_netFrameExtentsTimerId =
 931                 g_timeout_add(1000, request_frame_extents_timeout, this);
 932         }
 933
 934         // defer calling gtk_widget_show()
 935         m_isShown = true;
 936         return true;
 937     }
 938
 939     if (show && !gtk_widget_get_realized(m_widget))
 940     {
 941         // size_allocate signals occur in reverse order (bottom to top).
 942         // Things work better if the initial wxSizeEvents are sent (from the
 943         // top down), before the initial size_allocate signals occur.
 944         wxSizeEvent event(GetSize(), GetId());
 945         event.SetEventObject(this);
 946         HandleWindowEvent(event);
 947     }
 948
 949     bool change = base_type::Show(show);
 950
 951     if (change && !show)
 952     {
 953         // make sure window has a non-default position, so when it is shown
 954         // again, it won't be repositioned by WM as if it were a new window
 955         // Note that this must be done _after_ the window is hidden.
 956         gtk_window_move((GtkWindow*)m_widget, m_x, m_y);
 957     }
 958
 959     return change;
 960 }
 961
 962 void wxTopLevelWindowGTK::ShowWithoutActivating()
 963 {
 964     if (!m_isShown)
 965     {
 966 #if GTK_CHECK_VERSION(2,6,0)
 967         if (!gtk_check_version(2,6,0))
 968             gtk_window_set_focus_on_map(GTK_WINDOW(m_widget), false);
 969 #endif // GTK+ 2.6+
 970
 971         Show(true);
 972     }
 973 }
 974
 975 void wxTopLevelWindowGTK::Raise()
 976 {
 977     gtk_window_present( GTK_WINDOW( m_widget ) );
 978 }
 979
 980 void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
 981 {
 982     wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") );
 983 }
 984
 985 // ----------------------------------------------------------------------------
 986 // window geometry
 987 // ----------------------------------------------------------------------------
 988
 989 void wxTopLevelWindowGTK::GTKDoGetSize(int *width, int *height) const
 990 {
 991     wxSize size(m_width, m_height);
 992     size -= m_decorSize;
 993     if (size.x < 0) size.x = 0;
 994     if (size.y < 0) size.y = 0;
 995 #if wxUSE_LIBHILDON2
 996     if (width) {
 997        if (size.x == 720)
 998                *width = 696;
 999        else
1000                *width = size.x;
1001     }
1002     if (height) {
1003        if (size.y == 420)
1004                *height = 396;
1005        else if (size.y == 270)
1006                *height = 246;
1007             else
1008                *height = size.y;
1009     }
1010 #else // wxUSE_LIBHILDON2
1011     if (width)  *width  = size.x;
1012     if (height) *height = size.y;
1013 #endif // wxUSE_LIBHILDON2 /!wxUSE_LIBHILDON2
1014 }
1015
1016 void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
1017 {
1018     wxCHECK_RET( m_widget, wxT("invalid frame") );
1019
1020     m_deferShowAllowed = true;
1021
1022     // deal with the position first
1023     int old_x = m_x;
1024     int old_y = m_y;
1025
1026     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
1027     {
1028         // -1 means "use existing" unless the flag above is specified
1029         if ( x != -1 )
1030             m_x = x;
1031         if ( y != -1 )
1032             m_y = y;
1033     }
1034     else // wxSIZE_ALLOW_MINUS_ONE
1035     {
1036         m_x = x;
1037         m_y = y;
1038     }
1039
1040     if ( m_x != old_x || m_y != old_y )
1041     {
1042         gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
1043     }
1044
1045     const wxSize oldSize(m_width, m_height);
1046     if (width >= 0)
1047         m_width = width;
1048     if (height >= 0)
1049         m_height = height;
1050     ConstrainSize();
1051     if (m_width != oldSize.x || m_height != oldSize.y)
1052     {
1053         int w, h;
1054         GTKDoGetSize(&w, &h);
1055         gtk_window_resize(GTK_WINDOW(m_widget), w, h);
1056
1057         GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
1058         wxSizeEvent event(GetSize(), GetId());
1059         event.SetEventObject(this);
1060         HandleWindowEvent(event);
1061     }
1062 }
1063
1064 void wxTopLevelWindowGTK::DoSetClientSize(int width, int height)
1065 {
1066     base_type::DoSetClientSize(width, height);
1067
1068     // Since client size is being explicitly set, don't change it later
1069     // Has to be done after calling base because it calls SetSize,
1070     // which sets this true
1071     m_deferShowAllowed = false;
1072 }
1073
1074 void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const
1075 {
1076     wxASSERT_MSG(m_widget, wxT("invalid frame"));
1077
1078     if ( IsIconized() )
1079     {
1080         // for consistency with wxMSW, client area is supposed to be empty for
1081         // the iconized windows
1082         if ( width )
1083             *width = 0;
1084         if ( height )
1085             *height = 0;
1086     }
1087     else
1088     {
1089         GTKDoGetSize(width, height);
1090     }
1091 }
1092
1093 void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,
1094                                           int maxW, int maxH,
1095                                           int incW, int incH )
1096 {
1097     base_type::DoSetSizeHints(minW, minH, maxW, maxH, incW, incH);
1098
1099     const wxSize minSize = GetMinSize();
1100     const wxSize maxSize = GetMaxSize();
1101     GdkGeometry hints;
1102     int hints_mask = 0;
1103     if (minSize.x > 0 || minSize.y > 0)
1104     {
1105         hints_mask |= GDK_HINT_MIN_SIZE;
1106         hints.min_width = minSize.x - m_decorSize.x;
1107         if (hints.min_width < 0)
1108             hints.min_width = 0;
1109         hints.min_height = minSize.y - m_decorSize.y;
1110         if (hints.min_height < 0)
1111             hints.min_height = 0;
1112     }
1113     if (maxSize.x > 0 || maxSize.y > 0)
1114     {
1115         hints_mask |= GDK_HINT_MAX_SIZE;
1116         hints.max_width = maxSize.x - m_decorSize.x;
1117         if (hints.max_width < 0)
1118             hints.max_width = INT_MAX;
1119         hints.max_height = maxSize.y - m_decorSize.y;
1120         if (hints.max_height < 0)
1121             hints.max_height = INT_MAX;
1122     }
1123     if (incW > 0 || incH > 0)
1124     {
1125         hints_mask |= GDK_HINT_RESIZE_INC;
1126         hints.width_inc  = incW > 0 ? incW : 1;
1127         hints.height_inc = incH > 0 ? incH : 1;
1128     }
1129     gtk_window_set_geometry_hints(
1130         (GtkWindow*)m_widget, NULL, &hints, (GdkWindowHints)hints_mask);
1131 }
1132
1133 void wxTopLevelWindowGTK::GTKUpdateDecorSize(const wxSize& decorSize)
1134 {
1135     if (!IsMaximized() && !IsFullScreen())
1136         GetCachedDecorSize() = decorSize;
1137     if (m_updateDecorSize && m_decorSize != decorSize)
1138     {
1139         const wxSize diff = decorSize - m_decorSize;
1140         m_decorSize = decorSize;
1141         bool resized = false;
1142         if (m_deferShow)
1143         {
1144             // keep overall size unchanged by shrinking m_widget
1145             int w, h;
1146             GTKDoGetSize(&w, &h);
1147             // but not if size would be less than minimum, it won't take effect
1148             const wxSize minSize = GetMinSize();
1149             if (w >= minSize.x && h >= minSize.y)
1150             {
1151                 gtk_window_resize(GTK_WINDOW(m_widget), w, h);
1152                 resized = true;
1153             }
1154         }
1155         if (!resized)
1156         {
1157             // adjust overall size to match change in frame extents
1158             m_width  += diff.x;
1159             m_height += diff.y;
1160             if (m_width  < 0) m_width  = 0;
1161             if (m_height < 0) m_height = 0;
1162             m_oldClientWidth = 0;
1163             gtk_widget_queue_resize(m_wxwindow);
1164         }
1165     }
1166     if (m_deferShow)
1167     {
1168         // gtk_widget_show() was deferred, do it now
1169         m_deferShow = false;
1170         GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
1171         wxSizeEvent sizeEvent(GetSize(), GetId());
1172         sizeEvent.SetEventObject(this);
1173         HandleWindowEvent(sizeEvent);
1174
1175         gtk_widget_show(m_widget);
1176
1177         wxShowEvent showEvent(GetId(), true);
1178         showEvent.SetEventObject(this);
1179         HandleWindowEvent(showEvent);
1180     }
1181 }
1182
1183 wxSize& wxTopLevelWindowGTK::GetCachedDecorSize()
1184 {
1185     static wxSize size[8];
1186
1187     int index = 0;
1188     // title bar
1189     if (m_gdkDecor & (GDK_DECOR_MENU | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE | GDK_DECOR_TITLE))
1190         index = 1;
1191     // border
1192     if (m_gdkDecor & GDK_DECOR_BORDER)
1193         index |= 2;
1194     // utility window decor can be different
1195     if (m_windowStyle & wxFRAME_TOOL_WINDOW)
1196         index |= 4;
1197     return size[index];
1198 }
1199
1200 void wxTopLevelWindowGTK::OnInternalIdle()
1201 {
1202     wxTopLevelWindowBase::OnInternalIdle();
1203
1204     // Synthetize activate events.
1205     if ( g_sendActivateEvent != -1 )
1206     {
1207         bool activate = g_sendActivateEvent != 0;
1208
1209         // if (!activate) wxPrintf( wxT("de") );
1210         // wxPrintf( wxT("activate\n") );
1211
1212         // do it only once
1213         g_sendActivateEvent = -1;
1214
1215         wxTheApp->SetActive(activate, (wxWindow *)g_lastActiveFrame);
1216     }
1217 }
1218
1219 // ----------------------------------------------------------------------------
1220 // frame title/icon
1221 // ----------------------------------------------------------------------------
1222
1223 void wxTopLevelWindowGTK::SetTitle( const wxString &title )
1224 {
1225     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1226
1227     if ( title == m_title )
1228         return;
1229
1230     m_title = title;
1231
1232     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
1233 }
1234
1235 void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
1236 {
1237     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1238
1239     base_type::SetIcons(icons);
1240
1241     // Setting icons before window is realized can cause a GTK assertion if
1242     // another TLW is realized before this one, and it has this one as it's
1243     // transient parent. The life demo exibits this problem.
1244     if (gtk_widget_get_realized(m_widget))
1245     {
1246         GList* list = NULL;
1247         for (size_t i = icons.GetIconCount(); i--;)
1248             list = g_list_prepend(list, icons.GetIconByIndex(i).GetPixbuf());
1249         gtk_window_set_icon_list(GTK_WINDOW(m_widget), list);
1250         g_list_free(list);
1251     }
1252 }
1253
1254 // ----------------------------------------------------------------------------
1255 // frame state: maximized/iconized/normal
1256 // ----------------------------------------------------------------------------
1257
1258 void wxTopLevelWindowGTK::Maximize(bool maximize)
1259 {
1260     if (maximize)
1261         gtk_window_maximize( GTK_WINDOW( m_widget ) );
1262     else
1263         gtk_window_unmaximize( GTK_WINDOW( m_widget ) );
1264 }
1265
1266 bool wxTopLevelWindowGTK::IsMaximized() const
1267 {
1268     GdkWindow* window = gtk_widget_get_window(m_widget);
1269     return window && (gdk_window_get_state(window) & GDK_WINDOW_STATE_MAXIMIZED);
1270 }
1271
1272 void wxTopLevelWindowGTK::Restore()
1273 {
1274     // "Present" seems similar enough to "restore"
1275     gtk_window_present( GTK_WINDOW( m_widget ) );
1276 }
1277
1278 void wxTopLevelWindowGTK::Iconize( bool iconize )
1279 {
1280     if (iconize)
1281         gtk_window_iconify( GTK_WINDOW( m_widget ) );
1282     else
1283         gtk_window_deiconify( GTK_WINDOW( m_widget ) );
1284 }
1285
1286 bool wxTopLevelWindowGTK::IsIconized() const
1287 {
1288     return m_isIconized;
1289 }
1290
1291 void wxTopLevelWindowGTK::SetIconizeState(bool iconize)
1292 {
1293     if ( iconize != m_isIconized )
1294     {
1295         m_isIconized = iconize;
1296         (void)SendIconizeEvent(iconize);
1297     }
1298 }
1299
1300 void wxTopLevelWindowGTK::AddGrab()
1301 {
1302     if (!m_grabbed)
1303     {
1304         m_grabbed = true;
1305         gtk_grab_add( m_widget );
1306         wxGUIEventLoop().Run();
1307         gtk_grab_remove( m_widget );
1308     }
1309 }
1310
1311 void wxTopLevelWindowGTK::RemoveGrab()
1312 {
1313     if (m_grabbed)
1314     {
1315         gtk_main_quit();
1316         m_grabbed = false;
1317     }
1318 }
1319
1320
1321 bool wxTopLevelWindowGTK::IsActive()
1322 {
1323     return (this == (wxTopLevelWindowGTK*)g_activeFrame);
1324 }
1325
1326 void wxTopLevelWindowGTK::RequestUserAttention(int flags)
1327 {
1328     bool new_hint_value = false;
1329
1330     // FIXME: This is a workaround to focus handling problem
1331     // If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle
1332     // hasn't yet been processed, and the internal focus system is not up to date yet.
1333     // YieldFor(wxEVT_CATEGORY_UI) ensures the processing of it (hopefully it
1334     // won't have side effects) - MR
1335     wxEventLoopBase::GetActive()->YieldFor(wxEVT_CATEGORY_UI);
1336
1337     if(m_urgency_hint >= 0)
1338         g_source_remove(m_urgency_hint);
1339
1340     m_urgency_hint = -2;
1341
1342     if( gtk_widget_get_realized(m_widget) && !IsActive() )
1343     {
1344         new_hint_value = true;
1345
1346         if (flags & wxUSER_ATTENTION_INFO)
1347         {
1348             m_urgency_hint = g_timeout_add(5000, (GSourceFunc)gtk_frame_urgency_timer_callback, this);
1349         } else {
1350             m_urgency_hint = -1;
1351         }
1352     }
1353
1354 #if GTK_CHECK_VERSION(2,7,0)
1355     if(!gtk_check_version(2,7,0))
1356         gtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1357     else
1358 #endif
1359         wxgtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1360 }
1361
1362 void wxTopLevelWindowGTK::SetWindowStyleFlag( long style )
1363 {
1364     // Store which styles were changed
1365     long styleChanges = style ^ m_windowStyle;
1366
1367     // Process wxWindow styles. This also updates the internal variable
1368     // Therefore m_windowStyle bits carry now the _new_ style values
1369     wxWindow::SetWindowStyleFlag(style);
1370
1371     // just return for now if widget does not exist yet
1372     if (!m_widget)
1373         return;
1374
1375     if ( styleChanges & wxSTAY_ON_TOP )
1376     {
1377         gtk_window_set_keep_above(GTK_WINDOW(m_widget),
1378                                   m_windowStyle & wxSTAY_ON_TOP);
1379     }
1380
1381     if ( styleChanges & wxFRAME_NO_TASKBAR )
1382     {
1383         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget),
1384                                          m_windowStyle & wxFRAME_NO_TASKBAR);
1385     }
1386 }
1387
1388 /* Get the X Window between child and the root window.
1389    This should usually be the WM managed XID */
1390 static Window wxGetTopmostWindowX11(Display *dpy, Window child)
1391 {
1392     Window root, parent;
1393     Window* children;
1394     unsigned int nchildren;
1395
1396     XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1397     XFree(children);
1398
1399     while (parent != root) {
1400         child = parent;
1401         XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1402         XFree(children);
1403     }
1404
1405     return child;
1406 }
1407
1408 bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha)
1409 {
1410     GdkWindow* window = NULL;
1411     if (m_widget)
1412         window = gtk_widget_get_window(m_widget);
1413     if (window == NULL)
1414         return false;
1415
1416     Display* dpy = GDK_WINDOW_XDISPLAY(window);
1417     // We need to get the X Window that has the root window as the immediate parent
1418     // and m_widget->window as a child. This should be the X Window that the WM manages and
1419     // from which the opacity property is checked from.
1420     Window win = wxGetTopmostWindowX11(dpy, GDK_WINDOW_XID(window));
1421
1422
1423     // Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
1424     if (alpha == 0xff)
1425         XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False));
1426     else
1427     {
1428         long opacity = alpha * 0x1010101L;
1429         XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False),
1430                         XA_CARDINAL, 32, PropModeReplace,
1431                         (unsigned char *) &opacity, 1L);
1432     }
1433     XSync(dpy, False);
1434     return true;
1435 }
1436
1437 bool wxTopLevelWindowGTK::CanSetTransparent()
1438 {
1439     // allow to override automatic detection as it's far from perfect
1440     const wxString SYSOPT_TRANSPARENT = "gtk.tlw.can-set-transparent";
1441     if ( wxSystemOptions::HasOption(SYSOPT_TRANSPARENT) )
1442     {
1443         return wxSystemOptions::GetOptionInt(SYSOPT_TRANSPARENT) != 0;
1444     }
1445
1446 #if GTK_CHECK_VERSION(2,10,0)
1447     if (!gtk_check_version(2,10,0))
1448     {
1449         return (gtk_widget_is_composited (m_widget));
1450     }
1451     else
1452 #endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves
1453     {
1454         return false;
1455     }
1456
1457 #if 0 // Don't be optimistic here for the sake of wxAUI
1458     int opcode, event, error;
1459     // Check for the existence of a RGBA visual instead?
1460     return XQueryExtension(gdk_x11_get_default_xdisplay (),
1461                            "Composite", &opcode, &event, &error);
1462 #endif
1463 }