1 files changed, 92 insertions, 0 deletions
diff --git a/khotkeys/kcontrol/windowselector.cpp b/khotkeys/kcontrol/windowselector.cpp
new file mode 100644
index 000000000..a754b422d
--- /dev/null
+++ b/khotkeys/kcontrol/windowselector.cpp
@@ -0,0 +1,92 @@
+/****************************************************************************
+
+ KHotKeys
+ 
+ Copyright (C) 2003 Lubos Lunak <[email protected]>
+
+ Distributed under the terms of the GNU General Public License version 2.
+ 
+****************************************************************************/
+
+#define _WINDOWSELECTOR_CPP_
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "windowselector.h"
+
+#include "voices.h"
+
+#include <qcursor.h>
+#include <kdebug.h>
+#include <kapplication.h>
+#include <X11/Xlib.h>
+#include <fixx11h.h>
+
+namespace KHotKeys
+{
+
+WindowSelector::WindowSelector( QObject* receiver_P, const char* slot_P )
+    {
+    connect( this, SIGNAL( selected_signal( WId )), receiver_P, slot_P );
+    }
+
+void WindowSelector::select()
+    {
+    kapp->desktop()->grabMouse( QCursor( crossCursor ));
+    kapp->installX11EventFilter( this );
+    }
+
+bool WindowSelector::x11Event( XEvent* e )
+    {
+    if( e->type != ButtonPress )
+        return false;
+    kapp->desktop()->releaseMouse();
+    if( e->xbutton.button == Button1 )
+        {
+        WId window = findRealWindow( e->xbutton.subwindow );
+        if( window )
+            selected_signal( window );
+        }
+    delete this;
+    return true;
+    }
+
+WId WindowSelector::findRealWindow( WId w, int depth )
+    {
+    if( depth > 5 )
+	return None;
+    static Atom wm_state = XInternAtom( qt_xdisplay(), "WM_STATE", False );
+    Atom type;
+    int format;
+    unsigned long nitems, after;
+    unsigned char* prop;
+    if( XGetWindowProperty( qt_xdisplay(), w, wm_state, 0, 0, False, AnyPropertyType,
+	&type, &format, &nitems, &after, &prop ) == Success )
+        {
+	if( prop != NULL )
+	    XFree( prop );
+	if( type != None )
+	    return w;
+        }
+    Window root, parent;
+    Window* children;
+    unsigned int nchildren;
+    Window ret = None;
+    if( XQueryTree( qt_xdisplay(), w, &root, &parent, &children, &nchildren ) != 0 )
+        {
+	for( unsigned int i = 0;
+	     i < nchildren && ret == None;
+	     ++i )
+	    ret = findRealWindow( children[ i ], depth + 1 );
+	if( children != NULL )
+	    XFree( children );
+        }
+    return ret;
+}
+
+
+} // namespace KHotKeys
+
+#include "windowselector.moc"