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diff --git a/kde/window-decorator-kde4/utils.cpp b/kde/window-decorator-kde4/utils.cpp
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+/*
+ * Copyright © 2008 Dennis Kasprzyk <onestone@opencompositing.org>
+ * Copyright © 2006 Novell, Inc.
+ * Copyright © 2006 Volker Krause <vkrause@kde.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ *
+ * Author: David Reveman <davidr@novell.com>
+ */
+
+#include "utils.h"
+
+#include <decoration.h>
+#include <X11/Xlib.h>
+#include <X11/Xatom.h>
+
+#include <stdlib.h>
+#include <QX11Info>
+
+static int trappedErrorCode = 0;
+
+namespace KWD
+{
+ namespace Atoms
+ {
+ Atom switchSelectWindow;
+ Atom switchFgColor;
+ Atom netWmWindowOpacity;
+ Atom netInputFrameWindow;
+ Atom netOutputFrameWindow;
+ Atom netWindowDecor;
+ Atom netWindowDecorNormal;
+ Atom netWindowDecorActive;
+ Atom netWindowDecorBare;
+ Atom wmTakeFocus;
+ Atom netWmContextHelp;
+ Atom wmProtocols;
+ Atom toolkitActionAtom;
+ Atom toolkitActionWindowMenuAtom;
+ Atom toolkitActionForceQuitDialogAtom;
+ Atom compizWindowBlurDecor;
+ Atom enlightmentDesktop;
+ }
+}
+
+static int (*oldErrorHandler) (Display *display, XErrorEvent *error);
+
+static int
+xErrorHandler (Display *display,
+ XErrorEvent *error)
+{
+ (void) display;
+
+ trappedErrorCode = error->error_code;
+
+ return 0;
+}
+
+void
+KWD::trapXError (void)
+{
+ trappedErrorCode = 0;
+ oldErrorHandler = XSetErrorHandler (xErrorHandler);
+}
+
+int
+KWD::popXError (void)
+{
+ XSync (QX11Info::display (), false);
+ XSetErrorHandler (oldErrorHandler);
+
+ return trappedErrorCode;
+}
+
+void *
+KWD::readXProperty (WId window,
+ Atom property,
+ Atom type,
+ int *items)
+{
+ long offset = 0, length = 2048L;
+ Atom actualType;
+ int format;
+ unsigned long nItems, bytesRemaining;
+ unsigned char *data = 0l;
+ int result;
+
+ KWD::trapXError ();
+ result = XGetWindowProperty (QX11Info::display (), window, property, offset,
+ length, false, type,
+ &actualType, &format, &nItems,
+ &bytesRemaining, &data);
+
+ if (KWD::popXError ())
+ return NULL;
+
+ if (result == Success && actualType == type && format == 32 && nItems > 0)
+ {
+ if (items)
+ *items = nItems;
+
+ return reinterpret_cast <void *> (data);
+ }
+
+ if (data)
+ XFree (data);
+
+ if (items)
+ *items = 0;
+
+ return NULL;
+}
+
+bool
+KWD::readWindowProperty (long window,
+ long property,
+ long *value)
+{
+ void *data = readXProperty (window, property, XA_WINDOW, NULL);
+
+ if (data)
+ {
+ if (value)
+ *value = *reinterpret_cast <int *> (data);
+
+ XFree (data);
+
+ return true;
+ }
+
+ return false;
+}
+
+unsigned short
+KWD::readPropertyShort (WId id,
+ Atom property,
+ unsigned short defaultValue)
+{
+ Atom actual;
+ int result, format;
+ unsigned long n, left;
+ unsigned char *data;
+
+ KWD::trapXError ();
+ result = XGetWindowProperty (QX11Info::display (), id, property,
+ 0L, 1L, FALSE, XA_CARDINAL, &actual, &format,
+ &n, &left, &data);
+ if (KWD::popXError ())
+ return defaultValue;
+
+ if (result == Success && n && data)
+ {
+ unsigned int value;
+
+ memcpy (&value, data, sizeof (unsigned int));
+
+ XFree (data);
+
+ return value >> 16;
+ }
+
+ return defaultValue;
+}
+
+void
+KWD::Atoms::init (void)
+{
+ Display *xdisplay = QX11Info::display ();
+
+ netInputFrameWindow =
+ XInternAtom (xdisplay, DECOR_INPUT_FRAME_ATOM_NAME, false);
+ netOutputFrameWindow =
+ XInternAtom (xdisplay, DECOR_OUTPUT_FRAME_ATOM_NAME, false);
+ netWindowDecor = XInternAtom (xdisplay, DECOR_WINDOW_ATOM_NAME, false);
+ netWindowDecorNormal =
+ XInternAtom (xdisplay, DECOR_NORMAL_ATOM_NAME, false);
+ netWindowDecorActive =
+ XInternAtom (xdisplay, DECOR_ACTIVE_ATOM_NAME, false);
+ netWindowDecorBare =
+ XInternAtom (xdisplay, DECOR_BARE_ATOM_NAME, false);
+ switchSelectWindow =
+ XInternAtom (xdisplay, DECOR_SWITCH_WINDOW_ATOM_NAME, false);
+ switchFgColor =
+ XInternAtom (xdisplay, DECOR_SWITCH_FOREGROUND_COLOR_ATOM_NAME, false);
+ wmTakeFocus = XInternAtom (xdisplay, "WM_TAKE_FOCUS", false);
+ netWmContextHelp =
+ XInternAtom (xdisplay, "_NET_WM_CONTEXT_HELP", false);
+ wmProtocols = XInternAtom (xdisplay, "WM_PROTOCOLS", false);
+ netWmWindowOpacity =
+ XInternAtom (xdisplay, "_NET_WM_WINDOW_OPACITY", false);
+ toolkitActionAtom = XInternAtom (xdisplay, "_COMPIZ_TOOLKIT_ACTION", false);
+ toolkitActionWindowMenuAtom =
+ XInternAtom (xdisplay, "_COMPIZ_TOOLKIT_ACTION_WINDOW_MENU", false);
+ toolkitActionForceQuitDialogAtom =
+ XInternAtom (xdisplay, "_COMPIZ_TOOLKIT_ACTION_FORCE_QUIT_DIALOG",
+ false);
+ compizWindowBlurDecor =
+ XInternAtom (xdisplay, DECOR_BLUR_ATOM_NAME, false);
+ enlightmentDesktop = XInternAtom (xdisplay, "ENLIGHTENMENT_DESKTOP", false);
+}