src/gtk/toplevel.cpp

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