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     win->SetIconizeState(false);
 343     if (wasIconized)
 344     {
 345         // Because GetClientSize() returns (0,0) when IsIconized() is true,
 346         // a size event must be generated, just in case GetClientSize() was
 347         // called while iconized. This specifically happens when restoring a
 348         // tlw that was "rolled up" with some WMs.
 349         // Queue a resize rather than sending size event directly to allow
 350         // children to be made visible first.
 351         win->m_oldClientWidth = 0;
 352         gtk_widget_queue_resize(win->m_wxwindow);
 353     }
 354     // it is possible for m_isShown to be false here, see bug #9909
 355     if (win->wxWindowBase::Show(true))
 356     {
 357         wxShowEvent eventShow(win->GetId(), true);
 358         eventShow.SetEventObject(win);
 359         win->GetEventHandler()->ProcessEvent(eventShow);
 360     }
 361     return false;
 362 }
 363 }
 364
 365 //-----------------------------------------------------------------------------
 366 // "unmap_event" from m_widget
 367 //-----------------------------------------------------------------------------
 368
 369 extern "C" {
 370 static gboolean
 371 gtk_frame_unmap_callback( GtkWidget * WXUNUSED(widget),
 372                           GdkEvent * WXUNUSED(event),
 373                           wxTopLevelWindow *win )
 374 {
 375     win->SetIconizeState(true);
 376     return false;
 377 }
 378 }
 379
 380 //-----------------------------------------------------------------------------
 381
 382 bool wxGetFrameExtents(GdkWindow* window, int* left, int* right, int* top, int* bottom)
 383 {
 384     static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
 385     Atom xproperty = gdk_x11_atom_to_xatom_for_display(
 386                         gdk_drawable_get_display(window), property);
 387     Atom type;
 388     int format;
 389     gulong nitems, bytes_after;
 390     guchar* data;
 391     Status status = XGetWindowProperty(
 392         gdk_x11_drawable_get_xdisplay(window),
 393         gdk_x11_drawable_get_xid(window),
 394         xproperty,
 395         0, 4, false, XA_CARDINAL,
 396         &type, &format, &nitems, &bytes_after, &data);
 397     const bool success = status == Success && data && nitems == 4;
 398     if (success)
 399     {
 400         long* p = (long*)data;
 401         if (left)   *left   = int(p[0]);
 402         if (right)  *right  = int(p[1]);
 403         if (top)    *top    = int(p[2]);
 404         if (bottom) *bottom = int(p[3]);
 405     }
 406     if (data)
 407         XFree(data);
 408     return success;
 409 }
 410
 411 //-----------------------------------------------------------------------------
 412 // "property_notify_event" from m_widget
 413 //-----------------------------------------------------------------------------
 414
 415 extern "C" {
 416 static gboolean property_notify_event(
 417     GtkWidget*, GdkEventProperty* event, wxTopLevelWindowGTK* win)
 418 {
 419     // Watch for changes to _NET_FRAME_EXTENTS property
 420     static GdkAtom property = gdk_atom_intern("_NET_FRAME_EXTENTS", false);
 421     if (event->state == GDK_PROPERTY_NEW_VALUE && event->atom == property)
 422     {
 423         wxSize decorSize = win->m_decorSize;
 424         int left, right, top, bottom;
 425         if (wxGetFrameExtents(event->window, &left, &right, &top, &bottom))
 426             decorSize.Set(left + right, top + bottom);
 427
 428         win->GTKUpdateDecorSize(decorSize);
 429     }
 430     return false;
 431 }
 432 }
 433
 434 // ----------------------------------------------------------------------------
 435 // wxTopLevelWindowGTK creation
 436 // ----------------------------------------------------------------------------
 437
 438 void wxTopLevelWindowGTK::Init()
 439 {
 440     m_mainWidget = NULL;
 441     m_isIconized = false;
 442     m_fsIsShowing = false;
 443     m_themeEnabled = true;
 444     m_gdkDecor =
 445     m_gdkFunc = 0;
 446     m_grabbed = false;
 447     m_deferShow = true;
 448     m_deferShowAllowed = true;
 449     m_updateDecorSize = true;
 450
 451     m_urgency_hint = -2;
 452 }
 453
 454 bool wxTopLevelWindowGTK::Create( wxWindow *parent,
 455                                   wxWindowID id,
 456                                   const wxString& title,
 457                                   const wxPoint& pos,
 458                                   const wxSize& sizeOrig,
 459                                   long style,
 460                                   const wxString &name )
 461 {
 462     // always create a frame of some reasonable, even if arbitrary, size (at
 463     // least for MSW compatibility)
 464     wxSize size = sizeOrig;
 465     size.x = WidthDefault(size.x);
 466     size.y = HeightDefault(size.y);
 467
 468     wxTopLevelWindows.Append( this );
 469
 470     if (!PreCreation( parent, pos, size ) ||
 471         !CreateBase( parent, id, pos, size, style, wxDefaultValidator, name ))
 472     {
 473         wxFAIL_MSG( wxT("wxTopLevelWindowGTK creation failed") );
 474         return false;
 475     }
 476
 477     m_title = title;
 478
 479     // NB: m_widget may be !=NULL if it was created by derived class' Create,
 480     //     e.g. in wxTaskBarIconAreaGTK
 481     if (m_widget == NULL)
 482     {
 483 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 484         // we must create HildonWindow and not a normal GtkWindow as the latter
 485         // doesn't look correctly in Maemo environment and it must also be
 486         // registered with the main program object
 487         m_widget = hildon_window_new();
 488         hildon_program_add_window(wxTheApp->GetHildonProgram(),
 489                                   HILDON_WINDOW(m_widget));
 490 #else // !wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
 491         m_widget = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 492         if (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)
 493         {
 494             // Tell WM that this is a dialog window and make it center
 495             // on parent by default (this is what GtkDialog ctor does):
 496             gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 497                                      GDK_WINDOW_TYPE_HINT_DIALOG);
 498             gtk_window_set_position(GTK_WINDOW(m_widget),
 499                                     GTK_WIN_POS_CENTER_ON_PARENT);
 500         }
 501         else
 502         {
 503             if (style & wxFRAME_TOOL_WINDOW)
 504             {
 505                 gtk_window_set_type_hint(GTK_WINDOW(m_widget),
 506                                          GDK_WINDOW_TYPE_HINT_UTILITY);
 507
 508                 // On some WMs, like KDE, a TOOL_WINDOW will still show
 509                 // on the taskbar, but on Gnome a TOOL_WINDOW will not.
 510                 // For consistency between WMs and with Windows, we
 511                 // should set the NO_TASKBAR flag which will apply
 512                 // the set_skip_taskbar_hint if it is available,
 513                 // ensuring no taskbar entry will appear.
 514                 style |= wxFRAME_NO_TASKBAR;
 515             }
 516         }
 517 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2/!wxUSE_LIBHILDON || !wxUSE_LIBHILDON2
 518
 519         g_object_ref(m_widget);
 520     }
 521
 522     wxWindow *topParent = wxGetTopLevelParent(m_parent);
 523     if (topParent && (((GTK_IS_WINDOW(topParent->m_widget)) &&
 524                        (GetExtraStyle() & wxTOPLEVEL_EX_DIALOG)) ||
 525                        (style & wxFRAME_FLOAT_ON_PARENT)))
 526     {
 527         gtk_window_set_transient_for( GTK_WINDOW(m_widget),
 528                                       GTK_WINDOW(topParent->m_widget) );
 529     }
 530
 531     if (style & wxFRAME_NO_TASKBAR)
 532     {
 533         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget), TRUE);
 534     }
 535
 536     if (style & wxSTAY_ON_TOP)
 537     {
 538         gtk_window_set_keep_above(GTK_WINDOW(m_widget), TRUE);
 539     }
 540
 541 #if 0
 542     if (!name.empty())
 543         gtk_window_set_role( GTK_WINDOW(m_widget), wxGTK_CONV( name ) );
 544 #endif
 545
 546     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
 547     GTK_WIDGET_UNSET_FLAGS( m_widget, GTK_CAN_FOCUS );
 548
 549     g_signal_connect (m_widget, "delete_event",
 550                       G_CALLBACK (gtk_frame_delete_callback), this);
 551
 552     // m_mainWidget is a GtkVBox, holding the bars and client area (m_wxwindow)
 553     m_mainWidget = gtk_vbox_new(false, 0);
 554     gtk_widget_show( m_mainWidget );
 555     GTK_WIDGET_UNSET_FLAGS( m_mainWidget, GTK_CAN_FOCUS );
 556     gtk_container_add( GTK_CONTAINER(m_widget), m_mainWidget );
 557
 558     // m_wxwindow is the client area
 559     m_wxwindow = wxPizza::New(0,this);
 560     gtk_widget_show( m_wxwindow );
 561     gtk_container_add( GTK_CONTAINER(m_mainWidget), m_wxwindow );
 562
 563     // we donm't allow the frame to get the focus as otherwise
 564     // the frame will grab it at arbitrary focus changes
 565     GTK_WIDGET_UNSET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
 566
 567     if (m_parent) m_parent->AddChild( this );
 568
 569     g_signal_connect(m_wxwindow, "size_allocate",
 570         G_CALLBACK(size_allocate), this);
 571
 572     g_signal_connect (m_widget, "size_request",
 573                       G_CALLBACK (wxgtk_tlw_size_request_callback), this);
 574     PostCreation();
 575
 576     if ((m_x != -1) || (m_y != -1))
 577         gtk_widget_set_uposition( m_widget, m_x, m_y );
 578
 579     //  we cannot set MWM hints and icons before the widget has
 580     //  been realized, so we do this directly after realization
 581     g_signal_connect (m_widget, "realize",
 582                       G_CALLBACK (gtk_frame_realized_callback), this);
 583
 584     // map and unmap for iconized state
 585     g_signal_connect (m_widget, "map_event",
 586                       G_CALLBACK (gtk_frame_map_callback), this);
 587     g_signal_connect (m_widget, "unmap_event",
 588                       G_CALLBACK (gtk_frame_unmap_callback), this);
 589
 590     // for wxMoveEvent
 591     g_signal_connect (m_widget, "configure_event",
 592                       G_CALLBACK (gtk_frame_configure_callback), this);
 593
 594     // activation
 595     g_signal_connect_after (m_widget, "focus_in_event",
 596                       G_CALLBACK (gtk_frame_focus_in_callback), this);
 597     g_signal_connect_after (m_widget, "focus_out_event",
 598                       G_CALLBACK (gtk_frame_focus_out_callback), this);
 599
 600     gtk_widget_add_events(m_widget, GDK_PROPERTY_CHANGE_MASK);
 601     g_signal_connect(m_widget, "property_notify_event",
 602         G_CALLBACK(property_notify_event), this);
 603
 604     // translate wx decorations styles into Motif WM hints (they are recognized
 605     // by other WMs as well)
 606
 607     // always enable moving the window as we have no separate flag for enabling
 608     // it
 609     m_gdkFunc = GDK_FUNC_MOVE;
 610
 611     if ( style & wxCLOSE_BOX )
 612         m_gdkFunc |= GDK_FUNC_CLOSE;
 613
 614     if ( style & wxMINIMIZE_BOX )
 615         m_gdkFunc |= GDK_FUNC_MINIMIZE;
 616
 617     if ( style & wxMAXIMIZE_BOX )
 618         m_gdkFunc |= GDK_FUNC_MAXIMIZE;
 619
 620     if ( (style & wxSIMPLE_BORDER) || (style & wxNO_BORDER) )
 621     {
 622         m_gdkDecor = 0;
 623     }
 624     else // have border
 625     {
 626         m_gdkDecor = GDK_DECOR_BORDER;
 627
 628         if ( style & wxCAPTION )
 629             m_gdkDecor |= GDK_DECOR_TITLE;
 630
 631         if ( style & wxSYSTEM_MENU )
 632             m_gdkDecor |= GDK_DECOR_MENU;
 633
 634         if ( style & wxMINIMIZE_BOX )
 635             m_gdkDecor |= GDK_DECOR_MINIMIZE;
 636
 637         if ( style & wxMAXIMIZE_BOX )
 638             m_gdkDecor |= GDK_DECOR_MAXIMIZE;
 639
 640         if ( style & wxRESIZE_BORDER )
 641         {
 642            m_gdkFunc |= GDK_FUNC_RESIZE;
 643            m_gdkDecor |= GDK_DECOR_RESIZEH;
 644         }
 645     }
 646
 647     m_decorSize = GetCachedDecorSize();
 648     int w, h;
 649     GTKDoGetSize(&w, &h);
 650     gtk_window_set_default_size(GTK_WINDOW(m_widget), w, h);
 651
 652     return true;
 653 }
 654
 655 wxTopLevelWindowGTK::~wxTopLevelWindowGTK()
 656 {
 657 #if wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 658     // it can also be a (standard) dialog
 659     if ( HILDON_IS_WINDOW(m_widget) )
 660     {
 661         hildon_program_remove_window(wxTheApp->GetHildonProgram(),
 662                                      HILDON_WINDOW(m_widget));
 663     }
 664 #endif // wxUSE_LIBHILDON || wxUSE_LIBHILDON2
 665
 666     if (m_grabbed)
 667     {
 668         wxFAIL_MSG(wxT("Window still grabbed"));
 669         RemoveGrab();
 670     }
 671
 672     SendDestroyEvent();
 673
 674     // it may also be GtkScrolledWindow in the case of an MDI child
 675     if (GTK_IS_WINDOW(m_widget))
 676     {
 677         gtk_window_set_focus( GTK_WINDOW(m_widget), NULL );
 678     }
 679
 680     if (g_activeFrame == this)
 681         g_activeFrame = NULL;
 682     if (g_lastActiveFrame == this)
 683         g_lastActiveFrame = NULL;
 684 }
 685
 686 bool wxTopLevelWindowGTK::EnableCloseButton( bool enable )
 687 {
 688     if (enable)
 689         m_gdkFunc |= GDK_FUNC_CLOSE;
 690     else
 691         m_gdkFunc &= ~GDK_FUNC_CLOSE;
 692
 693     if (GTK_WIDGET_REALIZED(m_widget) && (m_widget->window))
 694         gdk_window_set_functions( m_widget->window, (GdkWMFunction)m_gdkFunc );
 695
 696     return true;
 697 }
 698
 699 bool wxTopLevelWindowGTK::ShowFullScreen(bool show, long)
 700 {
 701     if (show == m_fsIsShowing)
 702         return false; // return what?
 703
 704     m_fsIsShowing = show;
 705
 706     wxX11FullScreenMethod method =
 707         wxGetFullScreenMethodX11((WXDisplay*)GDK_DISPLAY(),
 708                                  (WXWindow)GDK_ROOT_WINDOW());
 709
 710     // NB: gtk_window_fullscreen() uses freedesktop.org's WMspec extensions
 711     //     to switch to fullscreen, which is not always available. We must
 712     //     check if WM supports the spec and use legacy methods if it
 713     //     doesn't.
 714     if ( method == wxX11_FS_WMSPEC )
 715     {
 716         if (show)
 717             gtk_window_fullscreen( GTK_WINDOW( m_widget ) );
 718         else
 719             gtk_window_unfullscreen( GTK_WINDOW( m_widget ) );
 720     }
 721     else
 722     {
 723         GdkWindow *window = m_widget->window;
 724
 725         if (show)
 726         {
 727             GetPosition( &m_fsSaveFrame.x, &m_fsSaveFrame.y );
 728             GetSize( &m_fsSaveFrame.width, &m_fsSaveFrame.height );
 729
 730             int screen_width,screen_height;
 731             wxDisplaySize( &screen_width, &screen_height );
 732
 733             gint client_x, client_y, root_x, root_y;
 734             gint width, height;
 735
 736             m_fsSaveGdkFunc = m_gdkFunc;
 737             m_fsSaveGdkDecor = m_gdkDecor;
 738             m_gdkFunc = m_gdkDecor = 0;
 739             gdk_window_set_decorations(window, (GdkWMDecoration)0);
 740             gdk_window_set_functions(window, (GdkWMFunction)0);
 741
 742             gdk_window_get_origin (m_widget->window, &root_x, &root_y);
 743             gdk_window_get_geometry (m_widget->window, &client_x, &client_y,
 744                          &width, &height, NULL);
 745
 746             gdk_window_move_resize (m_widget->window, -client_x, -client_y,
 747                         screen_width + 1, screen_height + 1);
 748
 749             wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
 750                                     (WXWindow)GDK_ROOT_WINDOW(),
 751                                     (WXWindow)GDK_WINDOW_XWINDOW(window),
 752                                     show, &m_fsSaveFrame, method);
 753         }
 754         else // hide
 755         {
 756             m_gdkFunc = m_fsSaveGdkFunc;
 757             m_gdkDecor = m_fsSaveGdkDecor;
 758             gdk_window_set_decorations(window, (GdkWMDecoration)m_gdkDecor);
 759             gdk_window_set_functions(window, (GdkWMFunction)m_gdkFunc);
 760
 761             wxSetFullScreenStateX11((WXDisplay*)GDK_DISPLAY(),
 762                                     (WXWindow)GDK_ROOT_WINDOW(),
 763                                     (WXWindow)GDK_WINDOW_XWINDOW(window),
 764                                     show, &m_fsSaveFrame, method);
 765
 766             SetSize(m_fsSaveFrame.x, m_fsSaveFrame.y,
 767                     m_fsSaveFrame.width, m_fsSaveFrame.height);
 768         }
 769     }
 770
 771     // documented behaviour is to show the window if it's still hidden when
 772     // showing it full screen
 773     if (show)
 774         Show();
 775
 776     return true;
 777 }
 778
 779 // ----------------------------------------------------------------------------
 780 // overridden wxWindow methods
 781 // ----------------------------------------------------------------------------
 782
 783 void wxTopLevelWindowGTK::Refresh( bool WXUNUSED(eraseBackground), const wxRect *WXUNUSED(rect) )
 784 {
 785     wxCHECK_RET( m_widget, wxT("invalid frame") );
 786
 787     gtk_widget_queue_draw( m_widget );
 788
 789     if (m_wxwindow && m_wxwindow->window)
 790         gdk_window_invalidate_rect( m_wxwindow->window, NULL, TRUE );
 791 }
 792
 793 bool wxTopLevelWindowGTK::Show( bool show )
 794 {
 795     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
 796
 797     bool deferShow = show && !m_isShown && m_deferShow;
 798     if (deferShow)
 799     {
 800         deferShow = m_deferShowAllowed && !GTK_WIDGET_REALIZED(m_widget);
 801         if (deferShow)
 802         {
 803             deferShow = g_signal_handler_find(m_widget,
 804                 GSignalMatchType(G_SIGNAL_MATCH_ID | G_SIGNAL_MATCH_DATA),
 805                 g_signal_lookup("property_notify_event", GTK_TYPE_WIDGET),
 806                 0, NULL, NULL, this) != 0;
 807         }
 808         GdkScreen* screen = NULL;
 809         if (deferShow)
 810         {
 811             screen = gtk_widget_get_screen(m_widget);
 812             GdkAtom atom = gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false);
 813             deferShow = gdk_x11_screen_supports_net_wm_hint(screen, atom) != 0;
 814             // If _NET_REQUEST_FRAME_EXTENTS not supported, don't allow changes
 815             // to m_decorSize, it breaks saving/restoring window size with
 816             // GetSize()/SetSize() because it makes window bigger between each
 817             // restore and save.
 818             m_updateDecorSize = deferShow;
 819         }
 820         if (deferShow)
 821         {
 822             // Fluxbox support for _NET_REQUEST_FRAME_EXTENTS is broken
 823             const char* name = gdk_x11_screen_get_window_manager_name(screen);
 824             deferShow = strcmp(name, "Fluxbox") != 0;
 825             m_updateDecorSize = deferShow;
 826         }
 827
 828         m_deferShow = deferShow;
 829     }
 830     if (deferShow)
 831     {
 832         // Initial show. If WM supports _NET_REQUEST_FRAME_EXTENTS, defer
 833         // calling gtk_widget_show() until _NET_FRAME_EXTENTS property
 834         // notification is received, so correct frame extents are known.
 835         // This allows resizing m_widget to keep the overall size in sync with
 836         // what wxWidgets expects it to be without an obvious change in the
 837         // window size immediately after it becomes visible.
 838
 839         // Realize m_widget, so m_widget->window can be used. Realizing normally
 840         // causes the widget tree to be size_allocated, which generates size
 841         // events in the wrong order. However, the size_allocates will not be
 842         // done if the allocation is not the default (1,1).
 843         const int alloc_width = m_widget->allocation.width;
 844         if (alloc_width == 1)
 845             m_widget->allocation.width = 2;
 846         gtk_widget_realize(m_widget);
 847         if (alloc_width == 1)
 848             m_widget->allocation.width = 1;
 849
 850         // send _NET_REQUEST_FRAME_EXTENTS
 851         XClientMessageEvent xevent;
 852         memset(&xevent, 0, sizeof(xevent));
 853         xevent.type = ClientMessage;
 854         xevent.window = gdk_x11_drawable_get_xid(m_widget->window);
 855         xevent.message_type = gdk_x11_atom_to_xatom_for_display(
 856             gdk_drawable_get_display(m_widget->window),
 857             gdk_atom_intern("_NET_REQUEST_FRAME_EXTENTS", false));
 858         xevent.format = 32;
 859         Display* display = gdk_x11_drawable_get_xdisplay(m_widget->window);
 860         XSendEvent(display, DefaultRootWindow(display), false,
 861             SubstructureNotifyMask | SubstructureRedirectMask,
 862             (XEvent*)&xevent);
 863
 864         // defer calling gtk_widget_show()
 865         m_isShown = true;
 866         return true;
 867     }
 868
 869     if (show && !GTK_WIDGET_REALIZED(m_widget))
 870     {
 871         // size_allocate signals occur in reverse order (bottom to top).
 872         // Things work better if the initial wxSizeEvents are sent (from the
 873         // top down), before the initial size_allocate signals occur.
 874         wxSizeEvent event(GetSize(), GetId());
 875         event.SetEventObject(this);
 876         HandleWindowEvent(event);
 877     }
 878
 879     bool change = wxTopLevelWindowBase::Show(show);
 880
 881     if (change && !show)
 882     {
 883         // make sure window has a non-default position, so when it is shown
 884         // again, it won't be repositioned by WM as if it were a new window
 885         // Note that this must be done _after_ the window is hidden.
 886         gtk_window_move((GtkWindow*)m_widget, m_x, m_y);
 887     }
 888
 889     return change;
 890 }
 891
 892 void wxTopLevelWindowGTK::Raise()
 893 {
 894     gtk_window_present( GTK_WINDOW( m_widget ) );
 895 }
 896
 897 void wxTopLevelWindowGTK::DoMoveWindow(int WXUNUSED(x), int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
 898 {
 899     wxFAIL_MSG( wxT("DoMoveWindow called for wxTopLevelWindowGTK") );
 900 }
 901
 902 // ----------------------------------------------------------------------------
 903 // window geometry
 904 // ----------------------------------------------------------------------------
 905
 906 void wxTopLevelWindowGTK::GTKDoGetSize(int *width, int *height) const
 907 {
 908     wxSize size(m_width, m_height);
 909     size -= m_decorSize;
 910     if (size.x < 0) size.x = 0;
 911     if (size.y < 0) size.y = 0;
 912 #if wxUSE_LIBHILDON2
 913     if (width) {
 914        if (size.x == 720)
 915                *width = 696;
 916        else
 917                *width = size.x;
 918     }
 919     if (height) {
 920        if (size.y == 420)
 921                *height = 396;
 922        else if (size.y == 270)
 923                *height = 246;
 924             else
 925                *height = size.y;
 926     }
 927 #else // wxUSE_LIBHILDON2
 928     if (width)  *width  = size.x;
 929     if (height) *height = size.y;
 930 #endif // wxUSE_LIBHILDON2 /!wxUSE_LIBHILDON2
 931 }
 932
 933 void wxTopLevelWindowGTK::DoSetSize( int x, int y, int width, int height, int sizeFlags )
 934 {
 935     wxCHECK_RET( m_widget, wxT("invalid frame") );
 936
 937     m_deferShowAllowed = true;
 938
 939     // deal with the position first
 940     int old_x = m_x;
 941     int old_y = m_y;
 942
 943     if ( !(sizeFlags & wxSIZE_ALLOW_MINUS_ONE) )
 944     {
 945         // -1 means "use existing" unless the flag above is specified
 946         if ( x != -1 )
 947             m_x = x;
 948         if ( y != -1 )
 949             m_y = y;
 950     }
 951     else // wxSIZE_ALLOW_MINUS_ONE
 952     {
 953         m_x = x;
 954         m_y = y;
 955     }
 956
 957     if ( m_x != old_x || m_y != old_y )
 958     {
 959         gtk_window_move( GTK_WINDOW(m_widget), m_x, m_y );
 960     }
 961
 962     const wxSize oldSize(m_width, m_height);
 963     if (width >= 0)
 964         m_width = width;
 965     if (height >= 0)
 966         m_height = height;
 967     ConstrainSize();
 968     if (m_width != oldSize.x || m_height != oldSize.y)
 969     {
 970         int w, h;
 971         GTKDoGetSize(&w, &h);
 972         gtk_window_resize(GTK_WINDOW(m_widget), w, h);
 973
 974         GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
 975         wxSizeEvent event(GetSize(), GetId());
 976         event.SetEventObject(this);
 977         HandleWindowEvent(event);
 978     }
 979 }
 980
 981 void wxTopLevelWindowGTK::DoSetClientSize(int width, int height)
 982 {
 983     // Since client size is being explicitly set, don't change it later
 984     m_deferShowAllowed = false;
 985
 986     wxTopLevelWindowBase::DoSetClientSize(width, height);
 987 }
 988
 989 void wxTopLevelWindowGTK::DoGetClientSize( int *width, int *height ) const
 990 {
 991     wxASSERT_MSG(m_widget, wxT("invalid frame"));
 992
 993     if ( IsIconized() )
 994     {
 995         // for consistency with wxMSW, client area is supposed to be empty for
 996         // the iconized windows
 997         if ( width )
 998             *width = 0;
 999         if ( height )
1000             *height = 0;
1001     }
1002     else
1003     {
1004         GTKDoGetSize(width, height);
1005     }
1006 }
1007
1008 void wxTopLevelWindowGTK::DoSetSizeHints( int minW, int minH,
1009                                           int maxW, int maxH,
1010                                           int incW, int incH )
1011 {
1012     wxTopLevelWindowBase::DoSetSizeHints( minW, minH, maxW, maxH, incW, incH );
1013
1014     const wxSize minSize = GetMinSize();
1015     const wxSize maxSize = GetMaxSize();
1016     GdkGeometry hints;
1017     int hints_mask = 0;
1018     if (minSize.x > 0 || minSize.y > 0)
1019     {
1020         hints_mask |= GDK_HINT_MIN_SIZE;
1021         hints.min_width = minSize.x - m_decorSize.x;
1022         if (hints.min_width < 0)
1023             hints.min_width = 0;
1024         hints.min_height = minSize.y - m_decorSize.y;
1025         if (hints.min_height < 0)
1026             hints.min_height = 0;
1027     }
1028     if (maxSize.x > 0 || maxSize.y > 0)
1029     {
1030         hints_mask |= GDK_HINT_MAX_SIZE;
1031         hints.max_width = maxSize.x - m_decorSize.x;
1032         if (hints.max_width < 0)
1033             hints.max_width = INT_MAX;
1034         hints.max_height = maxSize.y - m_decorSize.y;
1035         if (hints.max_height < 0)
1036             hints.max_height = INT_MAX;
1037     }
1038     if (incW > 0 || incH > 0)
1039     {
1040         hints_mask |= GDK_HINT_RESIZE_INC;
1041         hints.width_inc  = incW > 0 ? incW : 1;
1042         hints.height_inc = incH > 0 ? incH : 1;
1043     }
1044     gtk_window_set_geometry_hints(
1045         (GtkWindow*)m_widget, NULL, &hints, (GdkWindowHints)hints_mask);
1046 }
1047
1048 void wxTopLevelWindowGTK::GTKUpdateDecorSize(const wxSize& decorSize)
1049 {
1050     if (!IsMaximized() && !IsFullScreen())
1051         GetCachedDecorSize() = decorSize;
1052     if (m_updateDecorSize && m_decorSize != decorSize)
1053     {
1054         const wxSize diff = decorSize - m_decorSize;
1055         m_decorSize = decorSize;
1056         bool resized = false;
1057         if (m_deferShow)
1058         {
1059             // keep overall size unchanged by shrinking m_widget
1060             int w, h;
1061             GTKDoGetSize(&w, &h);
1062             // but not if size would be less than minimum, it won't take effect
1063             const wxSize minSize = GetMinSize();
1064             if (w >= minSize.x && h >= minSize.y)
1065             {
1066                 gtk_window_resize(GTK_WINDOW(m_widget), w, h);
1067                 resized = true;
1068             }
1069         }
1070         if (!resized)
1071         {
1072             // adjust overall size to match change in frame extents
1073             m_width  += diff.x;
1074             m_height += diff.y;
1075             if (m_width  < 0) m_width  = 0;
1076             if (m_height < 0) m_height = 0;
1077             m_oldClientWidth = 0;
1078             gtk_widget_queue_resize(m_wxwindow);
1079         }
1080     }
1081     if (m_deferShow)
1082     {
1083         // gtk_widget_show() was deferred, do it now
1084         m_deferShow = false;
1085         GetClientSize(&m_oldClientWidth, &m_oldClientHeight);
1086         wxSizeEvent sizeEvent(GetSize(), GetId());
1087         sizeEvent.SetEventObject(this);
1088         HandleWindowEvent(sizeEvent);
1089
1090         gtk_widget_show(m_widget);
1091
1092         wxShowEvent showEvent(GetId(), true);
1093         showEvent.SetEventObject(this);
1094         HandleWindowEvent(showEvent);
1095     }
1096 }
1097
1098 wxSize& wxTopLevelWindowGTK::GetCachedDecorSize()
1099 {
1100     static wxSize size[8];
1101
1102     int index = 0;
1103     // title bar
1104     if (m_gdkDecor & (GDK_DECOR_MENU | GDK_DECOR_MINIMIZE | GDK_DECOR_MAXIMIZE | GDK_DECOR_TITLE))
1105         index = 1;
1106     // border
1107     if (m_gdkDecor & GDK_DECOR_BORDER)
1108         index |= 2;
1109     // utility window decor can be different
1110     if (m_windowStyle & wxFRAME_TOOL_WINDOW)
1111         index |= 4;
1112     return size[index];
1113 }
1114
1115 void wxTopLevelWindowGTK::OnInternalIdle()
1116 {
1117     wxWindow::OnInternalIdle();
1118
1119     // Synthetize activate events.
1120     if ( g_sendActivateEvent != -1 )
1121     {
1122         bool activate = g_sendActivateEvent != 0;
1123
1124         // if (!activate) wxPrintf( wxT("de") );
1125         // wxPrintf( wxT("activate\n") );
1126
1127         // do it only once
1128         g_sendActivateEvent = -1;
1129
1130         wxTheApp->SetActive(activate, (wxWindow *)g_lastActiveFrame);
1131     }
1132 }
1133
1134 // ----------------------------------------------------------------------------
1135 // frame title/icon
1136 // ----------------------------------------------------------------------------
1137
1138 void wxTopLevelWindowGTK::SetTitle( const wxString &title )
1139 {
1140     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1141
1142     if ( title == m_title )
1143         return;
1144
1145     m_title = title;
1146
1147     gtk_window_set_title( GTK_WINDOW(m_widget), wxGTK_CONV( title ) );
1148 }
1149
1150 void wxTopLevelWindowGTK::SetIcons( const wxIconBundle &icons )
1151 {
1152     wxASSERT_MSG( (m_widget != NULL), wxT("invalid frame") );
1153
1154     wxTopLevelWindowBase::SetIcons( icons );
1155
1156     // Setting icons before window is realized can cause a GTK assertion if
1157     // another TLW is realized before this one, and it has this one as it's
1158     // transient parent. The life demo exibits this problem.
1159     if (GTK_WIDGET_REALIZED(m_widget))
1160     {
1161         GList* list = NULL;
1162         for (size_t i = icons.GetIconCount(); i--;)
1163             list = g_list_prepend(list, icons.GetIconByIndex(i).GetPixbuf());
1164         gtk_window_set_icon_list(GTK_WINDOW(m_widget), list);
1165         g_list_free(list);
1166     }
1167 }
1168
1169 // ----------------------------------------------------------------------------
1170 // frame state: maximized/iconized/normal
1171 // ----------------------------------------------------------------------------
1172
1173 void wxTopLevelWindowGTK::Maximize(bool maximize)
1174 {
1175     if (maximize)
1176         gtk_window_maximize( GTK_WINDOW( m_widget ) );
1177     else
1178         gtk_window_unmaximize( GTK_WINDOW( m_widget ) );
1179 }
1180
1181 bool wxTopLevelWindowGTK::IsMaximized() const
1182 {
1183     if(!m_widget->window)
1184         return false;
1185
1186     return gdk_window_get_state(m_widget->window) & GDK_WINDOW_STATE_MAXIMIZED;
1187 }
1188
1189 void wxTopLevelWindowGTK::Restore()
1190 {
1191     // "Present" seems similar enough to "restore"
1192     gtk_window_present( GTK_WINDOW( m_widget ) );
1193 }
1194
1195 void wxTopLevelWindowGTK::Iconize( bool iconize )
1196 {
1197     if (iconize)
1198         gtk_window_iconify( GTK_WINDOW( m_widget ) );
1199     else
1200         gtk_window_deiconify( GTK_WINDOW( m_widget ) );
1201 }
1202
1203 bool wxTopLevelWindowGTK::IsIconized() const
1204 {
1205     return m_isIconized;
1206 }
1207
1208 void wxTopLevelWindowGTK::SetIconizeState(bool iconize)
1209 {
1210     if ( iconize != m_isIconized )
1211     {
1212         m_isIconized = iconize;
1213         (void)SendIconizeEvent(iconize);
1214     }
1215 }
1216
1217 void wxTopLevelWindowGTK::AddGrab()
1218 {
1219     if (!m_grabbed)
1220     {
1221         m_grabbed = true;
1222         gtk_grab_add( m_widget );
1223         wxGUIEventLoop().Run();
1224         gtk_grab_remove( m_widget );
1225     }
1226 }
1227
1228 void wxTopLevelWindowGTK::RemoveGrab()
1229 {
1230     if (m_grabbed)
1231     {
1232         gtk_main_quit();
1233         m_grabbed = false;
1234     }
1235 }
1236
1237
1238 // helper
1239 static bool do_shape_combine_region(GdkWindow* window, const wxRegion& region)
1240 {
1241     if (window)
1242     {
1243         if (region.IsEmpty())
1244         {
1245             gdk_window_shape_combine_mask(window, NULL, 0, 0);
1246         }
1247         else
1248         {
1249             gdk_window_shape_combine_region(window, region.GetRegion(), 0, 0);
1250             return true;
1251         }
1252     }
1253     return false;
1254 }
1255
1256
1257 bool wxTopLevelWindowGTK::SetShape(const wxRegion& region)
1258 {
1259     wxCHECK_MSG( HasFlag(wxFRAME_SHAPED), false,
1260                  wxT("Shaped windows must be created with the wxFRAME_SHAPED style."));
1261
1262     if ( GTK_WIDGET_REALIZED(m_widget) )
1263     {
1264         if ( m_wxwindow )
1265             do_shape_combine_region(m_wxwindow->window, region);
1266
1267         return do_shape_combine_region(m_widget->window, region);
1268     }
1269     else // not realized yet
1270     {
1271         // store the shape to set, it will be really set once we're realized
1272         m_shape = region;
1273
1274         // we don't know if we're going to succeed or fail, be optimistic by
1275         // default
1276         return true;
1277     }
1278 }
1279
1280 bool wxTopLevelWindowGTK::IsActive()
1281 {
1282     return (this == (wxTopLevelWindowGTK*)g_activeFrame);
1283 }
1284
1285 void wxTopLevelWindowGTK::RequestUserAttention(int flags)
1286 {
1287     bool new_hint_value = false;
1288
1289     // FIXME: This is a workaround to focus handling problem
1290     // If RequestUserAttention is called for example right after a wxSleep, OnInternalIdle
1291     // hasn't yet been processed, and the internal focus system is not up to date yet.
1292     // YieldFor(wxEVT_CATEGORY_UI) ensures the processing of it (hopefully it
1293     // won't have side effects) - MR
1294     wxEventLoopBase::GetActive()->YieldFor(wxEVT_CATEGORY_UI);
1295
1296     if(m_urgency_hint >= 0)
1297         g_source_remove(m_urgency_hint);
1298
1299     m_urgency_hint = -2;
1300
1301     if( GTK_WIDGET_REALIZED(m_widget) && !IsActive() )
1302     {
1303         new_hint_value = true;
1304
1305         if (flags & wxUSER_ATTENTION_INFO)
1306         {
1307             m_urgency_hint = g_timeout_add(5000, (GSourceFunc)gtk_frame_urgency_timer_callback, this);
1308         } else {
1309             m_urgency_hint = -1;
1310         }
1311     }
1312
1313 #if GTK_CHECK_VERSION(2,7,0)
1314     if(!gtk_check_version(2,7,0))
1315         gtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1316     else
1317 #endif
1318         wxgtk_window_set_urgency_hint(GTK_WINDOW( m_widget ), new_hint_value);
1319 }
1320
1321 void wxTopLevelWindowGTK::SetWindowStyleFlag( long style )
1322 {
1323     // Store which styles were changed
1324     long styleChanges = style ^ m_windowStyle;
1325
1326     // Process wxWindow styles. This also updates the internal variable
1327     // Therefore m_windowStyle bits carry now the _new_ style values
1328     wxWindow::SetWindowStyleFlag(style);
1329
1330     // just return for now if widget does not exist yet
1331     if (!m_widget)
1332         return;
1333
1334     if ( styleChanges & wxSTAY_ON_TOP )
1335     {
1336         gtk_window_set_keep_above(GTK_WINDOW(m_widget),
1337                                   m_windowStyle & wxSTAY_ON_TOP);
1338     }
1339
1340     if ( styleChanges & wxFRAME_NO_TASKBAR )
1341     {
1342         gtk_window_set_skip_taskbar_hint(GTK_WINDOW(m_widget),
1343                                          m_windowStyle & wxFRAME_NO_TASKBAR);
1344     }
1345 }
1346
1347 /* Get the X Window between child and the root window.
1348    This should usually be the WM managed XID */
1349 static Window wxGetTopmostWindowX11(Display *dpy, Window child)
1350 {
1351     Window root, parent;
1352     Window* children;
1353     unsigned int nchildren;
1354
1355     XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1356     XFree(children);
1357
1358     while (parent != root) {
1359         child = parent;
1360         XQueryTree(dpy, child, &root, &parent, &children, &nchildren);
1361         XFree(children);
1362     }
1363
1364     return child;
1365 }
1366
1367 bool wxTopLevelWindowGTK::SetTransparent(wxByte alpha)
1368 {
1369     if (!m_widget || !m_widget->window)
1370         return false;
1371
1372     Display* dpy = GDK_WINDOW_XDISPLAY (m_widget->window);
1373     // We need to get the X Window that has the root window as the immediate parent
1374     // and m_widget->window as a child. This should be the X Window that the WM manages and
1375     // from which the opacity property is checked from.
1376     Window win = wxGetTopmostWindowX11(dpy, GDK_WINDOW_XID (m_widget->window));
1377
1378
1379     // Using pure Xlib to not have a GTK version check mess due to gtk2.0 not having GdkDisplay
1380     if (alpha == 0xff)
1381         XDeleteProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False));
1382     else
1383     {
1384         long opacity = alpha * 0x1010101L;
1385         XChangeProperty(dpy, win, XInternAtom(dpy, "_NET_WM_WINDOW_OPACITY", False),
1386                         XA_CARDINAL, 32, PropModeReplace,
1387                         (unsigned char *) &opacity, 1L);
1388     }
1389     XSync(dpy, False);
1390     return true;
1391 }
1392
1393 bool wxTopLevelWindowGTK::CanSetTransparent()
1394 {
1395     // allow to override automatic detection as it's far from perfect
1396     static const wxChar *SYSOPT_TRANSPARENT = wxT("gtk.tlw.can-set-transparent");
1397     if ( wxSystemOptions::HasOption(SYSOPT_TRANSPARENT) )
1398     {
1399         return wxSystemOptions::GetOptionInt(SYSOPT_TRANSPARENT) != 0;
1400     }
1401
1402 #if GTK_CHECK_VERSION(2,10,0)
1403     if (!gtk_check_version(2,10,0))
1404     {
1405         return (gtk_widget_is_composited (m_widget));
1406     }
1407     else
1408 #endif // In case of lower versions than gtk+-2.10.0 we could look for _NET_WM_CM_Sn ourselves
1409     {
1410         return false;
1411     }
1412
1413 #if 0 // Don't be optimistic here for the sake of wxAUI
1414     int opcode, event, error;
1415     // Check for the existence of a RGBA visual instead?
1416     return XQueryExtension(gdk_x11_get_default_xdisplay (),
1417                            "Composite", &opcode, &event, &error);
1418 #endif
1419 }