static void OverrideX11ErrorHandler()
{
if (!Xpcom.IsLinux)
return;
// Initalize the Display then override the X11 error handler.
Form f = new Form();
f.Show();
Application.DoEvents();
ErrorHandler = new XErrorHandler(HandleError);
XSetErrorHandler(ErrorHandler);
}
static void OverrideX11ErrorHandler()
{
if (!Xpcom.IsLinux)
{
return;
}
// Initalize the Display then override the X11 error handler.
Form f = new Form();
f.Show();
Application.DoEvents();
ErrorHandler = new XErrorHandler(HandleError);
XSetErrorHandler(ErrorHandler);
}
public static extern XErrorHandler XSetErrorHandler(XErrorHandler Handler);
internal extern static IntPtr XSetErrorHandler(XErrorHandler error_handler);
internal static IntPtr XSetErrorHandler(XErrorHandler error_handler)
{
DebugHelper.TraceWriteLine ("XSetErrorHandler");
return _XSetErrorHandler(error_handler);
}
internal void SetDisplay(IntPtr display_handle)
{
if (display_handle != IntPtr.Zero) {
Hwnd hwnd;
if ((DisplayHandle != IntPtr.Zero) && (FosterParent != IntPtr.Zero)) {
hwnd = Hwnd.ObjectFromHandle(FosterParent);
XDestroyWindow(DisplayHandle, FosterParent);
hwnd.Dispose();
}
if (DisplayHandle != IntPtr.Zero) {
XCloseDisplay(DisplayHandle);
}
DisplayHandle=display_handle;
// We need to tell System.Drawing our DisplayHandle. FromHdcInternal has
// been hacked to do this for us.
Graphics.FromHdcInternal (DisplayHandle);
// query for the render extension so
// we can ignore the spurious
// BadPicture errors that are
// generated by cairo/render.
XQueryExtension (DisplayHandle, "RENDER",
ref render_major_opcode, ref render_first_event, ref render_first_error);
// Debugging support
if (Environment.GetEnvironmentVariable ("MONO_XSYNC") != null) {
XSynchronize(DisplayHandle, true);
}
if (Environment.GetEnvironmentVariable ("MONO_XEXCEPTIONS") != null) {
ErrorExceptions = true;
}
// Generic X11 setup
ScreenNo = XDefaultScreen(DisplayHandle);
RootWindow = XRootWindow(DisplayHandle, ScreenNo);
DefaultColormap = XDefaultColormap(DisplayHandle, ScreenNo);
// Create the foster parent
// it is important that border_width is kept in synch with the other XCreateWindow calls
FosterParent=XCreateSimpleWindow(DisplayHandle, RootWindow, 0, 0, 1, 1, 0, UIntPtr.Zero, UIntPtr.Zero);
if (FosterParent==IntPtr.Zero) {
Console.WriteLine("XplatUIX11 Constructor failed to create FosterParent");
}
DebugHelper.WriteLine ("FosterParent created 0x{0:x}", FosterParent.ToInt32());
hwnd = new Hwnd();
hwnd.Queue = ThreadQueue(Thread.CurrentThread);
hwnd.WholeWindow = FosterParent;
hwnd.ClientWindow = FosterParent;
// Create a HWND for RootWIndow as well, so our queue doesn't eat the events
hwnd = new Hwnd();
hwnd.Queue = ThreadQueue(Thread.CurrentThread);
hwnd.whole_window = RootWindow;
hwnd.ClientWindow = RootWindow;
// For sleeping on the X11 socket
listen = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
IPEndPoint ep = new IPEndPoint(IPAddress.Loopback, 0);
listen.Bind(ep);
listen.Listen(1);
// To wake up when a timer is ready
network_buffer = new byte[10];
wake = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
wake.Connect(listen.LocalEndPoint);
// Make this non-blocking, so it doesn't
// deadlock if too many wakes are sent
// before the wake_receive end is polled
wake.Blocking = false;
wake_receive = listen.Accept();
#if __MonoCS__
pollfds = new Pollfd [2];
pollfds [0] = new Pollfd ();
pollfds [0].fd = XConnectionNumber (DisplayHandle);
pollfds [0].events = PollEvents.POLLIN;
pollfds [1] = new Pollfd ();
pollfds [1].fd = wake_receive.Handle.ToInt32 ();
pollfds [1].events = PollEvents.POLLIN;
#endif
Keyboard = new X11Keyboard(DisplayHandle, FosterParent);
Dnd = new X11Dnd (DisplayHandle, Keyboard);
DoubleClickInterval = 500;
HoverState.Interval = 500;
HoverState.Timer = new Timer();
HoverState.Timer.Enabled = false;
HoverState.Timer.Interval = HoverState.Interval;
HoverState.Timer.Tick += new EventHandler(MouseHover);
HoverState.Size = new Size(4, 4);
HoverState.X = -1;
HoverState.Y = -1;
ActiveWindow = IntPtr.Zero;
FocusWindow = IntPtr.Zero;
ModalWindows = new Stack(3);
MouseState = MouseButtons.None;
mouse_position = new Point(0, 0);
Caret.Timer = new Timer();
Caret.Timer.Interval = 500; // FIXME - where should this number come from?
Caret.Timer.Tick += new EventHandler(CaretCallback);
SetupAtoms();
// Grab atom changes off the root window to catch certain WM events
XSelectInput(DisplayHandle, RootWindow, new IntPtr ((int) (EventMask.PropertyChangeMask | Keyboard.KeyEventMask)));
// Handle any upcoming errors
ErrorHandler = new XErrorHandler(HandleError);
XSetErrorHandler(ErrorHandler);
} else {
throw new ArgumentNullException("Display", "Could not open display (X-Server required. Check your DISPLAY environment variable)");
}
}
XplatUIX11()
{
// Handle singleton stuff first
RefCount = 0;
in_doevents = false;
// Now regular initialization
XlibLock = new object ();
X11Keyboard.XlibLock = XlibLock;
MessageQueues = Hashtable.Synchronized (new Hashtable(7));
unattached_timer_list = ArrayList.Synchronized (new ArrayList (3));
messageHold = Hashtable.Synchronized (new Hashtable(3));
Clipboard = new ClipboardData ();
XInitThreads();
ErrorExceptions = false;
// X11 Initialization
SetDisplay(XOpenDisplay(IntPtr.Zero));
X11DesktopColors.Initialize();
// Disable keyboard autorepeat
try {
XkbSetDetectableAutoRepeat (DisplayHandle, true, IntPtr.Zero);
detectable_key_auto_repeat = true;
} catch {
Console.Error.WriteLine ("Could not disable keyboard auto repeat, will attempt to disable manually.");
detectable_key_auto_repeat = false;
}
// Handle any upcoming errors; we re-set it here, X11DesktopColor stuff might have stolen it (gtk does)
ErrorHandler = new XErrorHandler(HandleError);
XSetErrorHandler(ErrorHandler);
}
private static extern XErrorHandler XSetErrorHandler(XErrorHandler handler);
public X11Display (IntPtr display)
{
if (display == IntPtr.Zero) {
throw new ArgumentNullException("Display",
"Could not open display (X-Server required. Check your DISPLAY environment variable)");
}
this.display = display;
// Debugging support
if (Environment.GetEnvironmentVariable ("MONO_XSYNC") != null) {
Xlib.XSynchronize (display, true);
}
if (Environment.GetEnvironmentVariable ("MONO_XEXCEPTIONS") != null) {
ErrorExceptions = true;
}
atoms = new X11Atoms (this);
DoubleClickInterval = 500;
HoverState.Interval = 500;
HoverState.Timer = new Timer();
HoverState.Timer.Enabled = false;
HoverState.Timer.Interval = HoverState.Interval;
HoverState.Timer.Tick += new EventHandler(MouseHover);
HoverState.Size = new Size(4, 4);
HoverState.X = -1;
HoverState.Y = -1;
ActiveWindow = null;
FocusWindow = null;
ModalWindows = new Stack(3);
MouseState = MouseButtons.None;
MousePosition = new Point(0, 0);
Caret.Timer = new Timer();
Caret.Timer.Interval = 500; // FIXME - where should this number come from?
Caret.Timer.Tick += new EventHandler(CaretCallback);
// XXX multiscreen work here
root_hwnd = new X11RootHwnd (this, Xlib.XRootWindow (display, DefaultScreen));
// XXX do we need a per-screen foster parent?
// Create the foster parent
foster_hwnd = new X11Hwnd (this,
Xlib.XCreateSimpleWindow (display, root_hwnd.WholeWindow,
0, 0, 1, 1, 4, UIntPtr.Zero, UIntPtr.Zero));
pollfds = new Pollfd [1];
pollfds [0] = new Pollfd ();
pollfds [0].fd = Xlib.XConnectionNumber (display);
pollfds [0].events = PollEvents.POLLIN;
Keyboard = new X11Keyboard(display, foster_hwnd.Handle);
Dnd = new X11Dnd (display, Keyboard);
ErrorExceptions = false;
// Handle any upcoming errors
ErrorHandler = new XErrorHandler (HandleError);
Xlib.XSetErrorHandler (ErrorHandler);
X11DesktopColors.Initialize(); // XXX we need to figure out how to make this display specific?
// Disable keyboard autorepeat
try {
Xlib.XkbSetDetectableAutoRepeat (display, true, IntPtr.Zero);
detectable_key_auto_repeat = true;
} catch {
Console.Error.WriteLine ("Could not disable keyboard auto repeat, will attempt to disable manually.");
detectable_key_auto_repeat = false;
}
// we re-set our error handler here, X11DesktopColor stuff might have stolen it (gtk does)
Xlib.XSetErrorHandler (ErrorHandler);
// create our event thread (just sits on the X socket waiting for events)
event_thread = new Thread (new ThreadStart (XEventThread));
event_thread.IsBackground = true;
event_thread.Start ();
}
public static extern IntPtr XSetErrorHandler(XErrorHandler handler);
internal static extern IntPtr XSetErrorHandler(XErrorHandler error_handler);
// native X display handle
internal void SetDisplay (IntPtr display_handle)
{
if (display_handle != IntPtr.Zero) {
Hwnd hwnd;
if ((GdkDisplayHandle != IntPtr.Zero) && (GdkFosterParent != IntPtr.Zero)) {
hwnd = Hwnd.ObjectFromHandle (gdk_x11_drawable_get_xid (GdkFosterParent));
gdk_window_destroy (GdkFosterParent);
hwnd.Dispose ();
}
if (GdkDisplayHandle != IntPtr.Zero) {
gdk_display_close (GdkDisplayHandle);
}
DisplayHandle = display_handle;
GdkDisplayHandle = gdk_x11_lookup_xdisplay (display_handle);
// We need to tell System.Drawing our DisplayHandle. FromHdcInternal has
// been hacked to do this for us.
Graphics.FromHdcInternal (DisplayHandle);
// Debugging support
if (Environment.GetEnvironmentVariable ("MONO_XSYNC") != null) {
XSynchronize (DisplayHandle, true);
}
if (Environment.GetEnvironmentVariable ("MONO_XEXCEPTIONS") != null) {
ErrorExceptions = true;
}
// Generic X11 setup
GdkScreen = gdk_screen_get_default ();
// or gdk_x11_get_default_screen
ScreenNo = gdk_screen_get_number (GdkScreen);
GdkRootWindow = gdk_get_default_root_window ();
RootWindow = gdk_x11_drawable_get_xid (GdkRootWindow);
GdkDefaultColormap = gdk_colormap_get_system ();
DefaultColormap = gdk_x11_colormap_get_xcolormap (GdkDefaultColormap);
VisualBestDepth = gdk_visual_get_best_depth ();
//Console.WriteLine (VisualBestDepth);
// Create the foster parent
FosterParent = XCreateSimpleWindow (DisplayHandle, RootWindow, 0, 0, 1, 1, 4, 0, 0);
GdkFosterParent = gdk_window_foreign_new (FosterParent);
if (GdkFosterParent == IntPtr.Zero) {
Console.WriteLine ("XplatUIX11GTK Constructor failed to create FosterParent");
}
hwnd = new Hwnd ();
hwnd.WholeWindow = FosterParent;
hwnd.ClientWindow = FosterParent;
// For sleeping on the X11 socket
listen = new Socket (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
IPEndPoint ep = new IPEndPoint (IPAddress.Loopback, 0);
listen.Bind (ep);
listen.Listen (1);
// To wake up when a timer is ready
network_buffer = new byte [10];
wake = new Socket (AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.IP);
wake.Connect (listen.LocalEndPoint);
wake_receive = listen.Accept ();
pollfds = new Pollfd [2];
pollfds [0] = new Pollfd ();
pollfds [0].fd = XConnectionNumber (DisplayHandle);
pollfds [0].events = PollEvents.POLLIN;
pollfds [1] = new Pollfd ();
pollfds [1].fd = wake_receive.Handle.ToInt32 ();
pollfds [1].events = PollEvents.POLLIN;
Keyboard = new X11Keyboard (DisplayHandle);
Dnd = new X11Dnd (DisplayHandle);
PostQuitState = false;
DoubleClickInterval = 500;
HoverState.Interval = 500;
HoverState.Timer = new Timer ();
HoverState.Timer.Enabled = false;
HoverState.Timer.Interval = HoverState.Interval;
HoverState.Timer.Tick += new EventHandler (MouseHover);
HoverState.X = -1;
HoverState.Y = -1;
ActiveWindow = IntPtr.Zero;
FocusWindow = IntPtr.Zero;
ModalWindows = new Stack (3);
MouseState = MouseButtons.None;
MousePosition = new Point (0, 0);
Caret.Timer = new Timer ();
Caret.Timer.Interval = 500; // FIXME - where should this number come from?
Caret.Timer.Tick += new EventHandler (CaretCallback);
SetupAtoms ();
// Grab atom changes off the root window to catch certain WM events
gdk_window_set_events (GdkRootWindow, (int)GdkEventMask.GDK_PROPERTY_CHANGE_MASK);
// Handle any upcoming errors
ErrorHandler = new XErrorHandler (HandleError);
XSetErrorHandler (ErrorHandler);
} else {
throw new ArgumentNullException ("Display", "Could not open display (X-Server required. Check your DISPLAY environment variable)");
}
}
private XplatUIX11GTK ()
{
Console.WriteLine ("XplatUIX11GTK ctor...");
// Handle singleton stuff first
RefCount = 0;
// init gdk
gdk_init_check (IntPtr.Zero, IntPtr.Zero);
// Now regular initialization
XlibLock = new object ();
MessageQueue = new XEventQueue ();
TimerList = new ArrayList ();
XInitThreads ();
ErrorExceptions = false;
// X11 Initialization
SetDisplay (gdk_x11_display_get_xdisplay (gdk_display_get_default ()));
X11DesktopColors.Initialize ();
// Handle any upcoming errors; we re-set it here, X11DesktopColor stuff might have stolen it (gtk does)
ErrorHandler = new XErrorHandler (HandleError);
XSetErrorHandler (ErrorHandler);
}
internal static extern IntPtr XSetErrorHandler(XErrorHandler error_handler);
internal extern static IntPtr XSetErrorHandler(XErrorHandler error_handler);
public extern static IntPtr XSetErrorHandler(XErrorHandler error_handler);
public extern static IntPtr XSetErrorHandler(XErrorHandler error_handler);
/// <summary>
/// Gets a value indicating whether the window is valid.
/// </summary>
/// <param name="window">The pointer to the window.</param>
/// <returns><see langword="true"/> if the window is valid; otherwise, <see langword="false"/>.</returns>
internal static bool IsWindowValid(IntPtr window)
{
bool validWindow = false;
XWindowAttributes attributes = new XWindowAttributes();
XErrorHandler handler = new XErrorHandler(IgnoreBadWindowHandler);
originalEventHandler = XSetErrorHandler(handler);
using (XServerConnection serverConnection = new XServerConnection())
{
validWindow = XGetWindowAttributes(serverConnection.Display, window, out attributes) != 0;
}
XSetErrorHandler(originalEventHandler);
originalEventHandler = null;
return validWindow;
}
