+
+
+#define _NET_WM_STATE_REMOVE 0
+#define _NET_WM_STATE_ADD 1
+
+static void wxWMspecSetState(Display *display, Window rootWnd,
+ Window window, int operation, Atom state)
+{
+ wxMAKE_ATOM(_NET_WM_STATE, display);
+
+ if ( IsMapped(display, window) )
+ {
+ XEvent xev;
+ xev.type = ClientMessage;
+ xev.xclient.type = ClientMessage;
+ xev.xclient.serial = 0;
+ xev.xclient.send_event = True;
+ xev.xclient.display = display;
+ xev.xclient.window = window;
+ xev.xclient.message_type = _NET_WM_STATE;
+ xev.xclient.format = 32;
+ xev.xclient.data.l[0] = operation;
+ xev.xclient.data.l[1] = state;
+ xev.xclient.data.l[2] = None;
+
+ XSendEvent(display, rootWnd,
+ False,
+ SubstructureRedirectMask | SubstructureNotifyMask,
+ &xev);
+ }
+ // FIXME - must modify _NET_WM_STATE property list if the window
+ // wasn't mapped!
+}
+
+static void wxWMspecSetFullscreen(Display *display, Window rootWnd,
+ Window window, bool fullscreen)
+{
+ wxMAKE_ATOM(_NET_WM_STATE_FULLSCREEN, display);
+ wxWMspecSetState(display, rootWnd,
+ window,
+ fullscreen ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE,
+ _NET_WM_STATE_FULLSCREEN);
+}
+
+
+// Is the user running KDE's kwin window manager? At least kwin from KDE 3
+// sets KWIN_RUNNING property on the root window.
+static bool wxKwinRunning(Display *display, Window rootWnd)
+{
+ wxMAKE_ATOM(KWIN_RUNNING, display);
+
+ long *data;
+ Atom type;
+ int format;
+ unsigned long nitems, after;
+ if (XGetWindowProperty(display, rootWnd,
+ KWIN_RUNNING, 0, 1, False, KWIN_RUNNING,
+ &type, &format, &nitems, &after,
+ (unsigned char**)&data) != Success)
+ {
+ return FALSE;
+ }
+
+ bool retval = (type == KWIN_RUNNING &&
+ nitems == 1 && data && data[0] == 1);
+ XFree(data);
+ return retval;
+}
+
+// KDE's kwin is Qt-centric so much than no normal method of fullscreen
+// mode will work with it. We have to carefully emulate the Qt way.
+static void wxSetKDEFullscreen(Display *display, Window rootWnd,
+ Window w, bool fullscreen, wxRect *origRect)
+{
+ long data[2];
+ unsigned lng;
+
+ wxMAKE_ATOM(_NET_WM_WINDOW_TYPE, display);
+ wxMAKE_ATOM(_NET_WM_WINDOW_TYPE_NORMAL, display);
+ wxMAKE_ATOM(_KDE_NET_WM_WINDOW_TYPE_OVERRIDE, display);
+ wxMAKE_ATOM(_NET_WM_STATE_STAYS_ON_TOP, display);
+
+ if (fullscreen)
+ {
+ data[0] = _KDE_NET_WM_WINDOW_TYPE_OVERRIDE;
+ data[1] = _NET_WM_WINDOW_TYPE_NORMAL;
+ lng = 2;
+ }
+ else
+ {
+ data[0] = _NET_WM_WINDOW_TYPE_NORMAL;
+ data[1] = None;
+ lng = 1;
+ }
+
+ // it is neccessary to unmap the window, otherwise kwin will ignore us:
+ XSync(display, False);
+
+ bool wasMapped = IsMapped(display, w);
+ if (wasMapped)
+ {
+ XUnmapWindow(display, w);
+ XSync(display, False);
+ }
+
+ XChangeProperty(display, w, _NET_WM_WINDOW_TYPE, XA_ATOM, 32,
+ PropModeReplace, (unsigned char *) &data, lng);
+ XSync(display, False);
+
+ if (wasMapped)
+ {
+ XMapRaised(display, w);
+ XSync(display, False);
+ }
+
+ wxWMspecSetState(display, rootWnd, w,
+ fullscreen ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE,
+ _NET_WM_STATE_STAYS_ON_TOP);
+ XSync(display, False);
+
+ if (!fullscreen)
+ {
+ // NB: like many other WMs, kwin ignores first request for window
+ // position change after the window was mapped. This additional
+ // move+resize event will ensure that the window is restored in
+ // exactly same position as before it was made fullscreen (because
+ // wxTopLevelWindow::ShowFullScreen will call SetSize, thus
+ // setting the position for second time).
+ XMoveResizeWindow(display, w,
+ origRect->x, origRect->y,
+ origRect->width, origRect->height);
+ XSync(display, False);
+ }
+}
+
+
+wxX11FullScreenMethod wxGetFullScreenMethodX11(WXDisplay* display,
+ WXWindow rootWindow)
+{
+ Window root = (Window)rootWindow;
+ Display *disp = (Display*)display;
+
+ // if WM supports _NET_WM_STATE_FULLSCREEN from wm-spec 1.2, use it:
+ wxMAKE_ATOM(_NET_WM_STATE_FULLSCREEN, disp);
+ if (wxQueryWMspecSupport(disp, root, _NET_WM_STATE_FULLSCREEN))
+ {
+ wxLogTrace(_T("fullscreen"),
+ _T("detected _NET_WM_STATE_FULLSCREEN support"));
+ return wxX11_FS_WMSPEC;
+ }
+
+ // if the user is running KDE's kwin WM, use a legacy hack because
+ // kwin doesn't understand any other method:
+ if (wxKwinRunning(disp, root))
+ {
+ wxLogTrace(_T("fullscreen"), _T("detected kwin"));
+ return wxX11_FS_KDE;
+ }
+
+ // finally, fall back to ICCCM heuristic method:
+ wxLogTrace(_T("fullscreen"), _T("unknown WM, using _WIN_LAYER"));
+ return wxX11_FS_GENERIC;
+}
+
+
+void wxSetFullScreenStateX11(WXDisplay* display, WXWindow rootWindow,
+ WXWindow window, bool show,
+ wxRect *origRect,
+ wxX11FullScreenMethod method)
+{
+ // NB: please see the comment under "Fullscreen mode:" title above
+ // for implications of changing this code.
+
+ Window wnd = (Window)window;
+ Window root = (Window)rootWindow;
+ Display *disp = (Display*)display;
+
+ if (method == wxX11_FS_AUTODETECT)
+ method = wxGetFullScreenMethodX11(display, rootWindow);
+
+ switch (method)
+ {
+ case wxX11_FS_WMSPEC:
+ wxWMspecSetFullscreen(disp, root, wnd, show);
+ break;
+ case wxX11_FS_KDE:
+ wxSetKDEFullscreen(disp, root, wnd, show, origRect);
+ break;
+ default:
+ wxWinHintsSetLayer(disp, root, wnd,
+ show ? WIN_LAYER_ABOVE_DOCK : WIN_LAYER_NORMAL);
+ break;
+ }
+}
+
+#endif
+
projects / wxWidgets.git / blobdiff