public override void PropertyChanged (XEvent xevent)
{
if (xevent.PropertyEvent.atom == Display.Atoms._NET_ACTIVE_WINDOW) {
IntPtr actual_atom;
int actual_format;
IntPtr nitems;
IntPtr bytes_after;
IntPtr prop = IntPtr.Zero;
Xlib.XGetWindowProperty (Display.Handle, WholeWindow,
Display.Atoms._NET_ACTIVE_WINDOW, IntPtr.Zero, new IntPtr (1), false,
Display.Atoms.XA_WINDOW, out actual_atom, out actual_format, out nitems, out bytes_after, ref prop);
if (((long)nitems > 0) && (prop != IntPtr.Zero)) {
// FIXME - is this 64 bit clean?
Display.SetActiveWindow ((X11Hwnd)Hwnd.ObjectFromHandle((IntPtr)Marshal.ReadInt32(prop)));
Xlib.XFree(prop);
}
}
else if (xevent.PropertyEvent.atom == Display.Atoms._NET_SUPPORTED) {
// we'll need to refetch the supported protocols list
refetch_net_supported = true;
_net_supported = null;
}
else
base.PropertyChanged (xevent);
}
public void Enqueue (XEvent xevent)
{
if (Thread.CurrentThread != thread) {
Console.WriteLine ("Hwnd.Queue.Enqueue called from a different thread without locking.");
Console.WriteLine (Environment.StackTrace);
}
xqueue.Enqueue (xevent);
}
internal extern static void XPeekEvent (IntPtr display, ref XEvent xevent);
void SendNetClientMessage(IntPtr window, IntPtr message_type, IntPtr l0, IntPtr l1, IntPtr l2) {
XEvent xev;
xev = new XEvent();
xev.ClientMessageEvent.type = XEventName.ClientMessage;
xev.ClientMessageEvent.send_event = true;
xev.ClientMessageEvent.window = window;
xev.ClientMessageEvent.message_type = message_type;
xev.ClientMessageEvent.format = 32;
xev.ClientMessageEvent.ptr1 = l0;
xev.ClientMessageEvent.ptr2 = l1;
xev.ClientMessageEvent.ptr3 = l2;
XSendEvent(DisplayHandle, window, false, new IntPtr ((int)EventMask.NoEventMask), ref xev);
}
void SendNetWMMessage(IntPtr window, IntPtr message_type, IntPtr l0, IntPtr l1, IntPtr l2, IntPtr l3) {
XEvent xev;
xev = new XEvent();
xev.ClientMessageEvent.type = XEventName.ClientMessage;
xev.ClientMessageEvent.send_event = true;
xev.ClientMessageEvent.window = window;
xev.ClientMessageEvent.message_type = message_type;
xev.ClientMessageEvent.format = 32;
xev.ClientMessageEvent.ptr1 = l0;
xev.ClientMessageEvent.ptr2 = l1;
xev.ClientMessageEvent.ptr3 = l2;
xev.ClientMessageEvent.ptr4 = l3;
XSendEvent(DisplayHandle, RootWindow, false, new IntPtr ((int) (EventMask.SubstructureRedirectMask | EventMask.SubstructureNotifyMask)), ref xev);
}
internal static void XIfEvent (IntPtr display, ref XEvent xevent, Delegate event_predicate, IntPtr arg)
{
DebugHelper.TraceWriteLine ("XIfEvent");
_XIfEvent (display, ref xevent, event_predicate, arg);
}
internal static bool XFilterEvent(ref XEvent xevent, IntPtr window)
{
DebugHelper.TraceWriteLine ("XFilterEvent");
return _XFilterEvent(ref xevent, window);
}
internal static IntPtr XNextEvent(IntPtr display, ref XEvent xevent)
{
DebugHelper.TraceWriteLine ("XNextEvent");
return _XNextEvent(display, ref xevent);
}
void AddConfigureNotify (XEvent xevent) {
Hwnd hwnd;
hwnd = Hwnd.GetObjectFromWindow(xevent.ConfigureEvent.window);
// Don't waste time
if (hwnd == null || hwnd.zombie) {
return;
}
if ((xevent.ConfigureEvent.window == hwnd.whole_window)/* && (xevent.ConfigureEvent.window == xevent.ConfigureEvent.xevent)*/) {
if (hwnd.parent == null) {
// The location given by the event is not reliable between different wm's,
// so use an alternative way of getting it.
Point location = GetTopLevelWindowLocation (hwnd);
hwnd.x = location.X;
hwnd.y = location.Y;
}
// XXX this sucks. this isn't thread safe
Control ctrl = Control.FromHandle (hwnd.Handle);
Size TranslatedSize;
if (ctrl != null) {
TranslatedSize = TranslateXWindowSizeToWindowSize (ctrl.GetCreateParams (), xevent.ConfigureEvent.width, xevent.ConfigureEvent.height);
} else {
TranslatedSize = new Size (xevent.ConfigureEvent.width, xevent.ConfigureEvent.height);
}
hwnd.width = TranslatedSize.Width;
hwnd.height = TranslatedSize.Height;
hwnd.ClientRect = Rectangle.Empty;
DriverDebug ("AddConfigureNotify (hwnd.Handle = {1}, final hwnd.rect = {0}, reported rect={2})",
new Rectangle (hwnd.x, hwnd.y, hwnd.width, hwnd.height), hwnd.Handle,
new Rectangle (xevent.ConfigureEvent.x, xevent.ConfigureEvent.y, xevent.ConfigureEvent.width, xevent.ConfigureEvent.width));
lock (hwnd.configure_lock) {
if (!hwnd.configure_pending) {
hwnd.Queue.EnqueueLocked (xevent);
hwnd.configure_pending = true;
}
}
}
// We drop configure events for Client windows
}
private bool HandleFinishedEvent (ref XEvent xevent)
{
return true;
}
private bool HandleStatusEvent (ref XEvent xevent)
{
if (drag_data != null && drag_data.State == DragState.Entered) {
if (!QueryContinue (false, DragAction.Continue))
return true;
drag_data.WillAccept = ((int) xevent.ClientMessageEvent.ptr2 & 0x1) != 0;
GiveFeedback (xevent.ClientMessageEvent.ptr5);
}
return true;
}
private bool Accepting_HandleLeaveEvent (ref XEvent xevent)
{
if (control != null && drag_event != null)
control.DndLeave (drag_event);
// Reset ();
return true;
}
private bool Accepting_HandleDropEvent (ref XEvent xevent)
{
if (control != null && drag_event != null) {
drag_event = new DragEventArgs (data,
0, pos_x, pos_y,
allowed, drag_event.Effect);
control.DndDrop (drag_event);
}
SendFinished ();
return true;
}
private bool Accepting_HandlePositionEvent (ref XEvent xevent)
{
pos_x = (int) xevent.ClientMessageEvent.ptr3 >> 16;
pos_y = (int) xevent.ClientMessageEvent.ptr3 & 0xFFFF;
// Copy is implicitly allowed
Control source_control = MwfWindow (source);
if (source_control == null)
allowed = EffectsFromX11Source (source, xevent.ClientMessageEvent.ptr5) | DragDropEffects.Copy;
else
allowed = drag_data.AllowedEffects;
IntPtr parent, child, new_child, last_drop_child;
parent = XplatUIX11.XRootWindow (display, 0);
child = toplevel;
last_drop_child = IntPtr.Zero;
while (true) {
int xd, yd;
new_child = IntPtr.Zero;
if (!XplatUIX11.XTranslateCoordinates (display,
parent, child, pos_x, pos_y,
out xd, out yd, out new_child))
break;
if (new_child == IntPtr.Zero)
break;
child = new_child;
Hwnd h = Hwnd.ObjectFromHandle (child);
if (h != null) {
Control d = Control.FromHandle (h.client_window);
if (d != null && d.allow_drop)
last_drop_child = child;
}
}
if (last_drop_child != IntPtr.Zero)
child = last_drop_child;
if (target != child) {
// We have moved into a new control
// or into a control for the first time
Finish ();
}
target = child;
Hwnd hwnd = Hwnd.ObjectFromHandle (target);
if (hwnd == null)
return true;
Control c = Control.FromHandle (hwnd.client_window);
if (c == null)
return true;
if (!c.allow_drop) {
SendStatus (source, DragDropEffects.None);
Finish ();
return true;
}
control = c;
position_recieved = true;
if (converts_pending > 0)
return true;
if (!status_sent) {
drag_event = new DragEventArgs (data, 0, pos_x, pos_y,
allowed, DragDropEffects.None);
control.DndEnter (drag_event);
SendStatus (source, drag_event.Effect);
status_sent = true;
} else {
drag_event.x = pos_x;
drag_event.y = pos_y;
control.DndOver (drag_event);
SendStatus (source, drag_event.Effect);
}
return true;
}
private bool Accepting_HandleEnterEvent (ref XEvent xevent)
{
Reset ();
source = xevent.ClientMessageEvent.ptr1;
toplevel = xevent.AnyEvent.window;
target = IntPtr.Zero;
ConvertData (ref xevent);
return true;
}
internal override int SendInput(IntPtr handle, Queue keys)
{
if (handle == IntPtr.Zero)
return 0;
int count = keys.Count;
Hwnd hwnd = Hwnd.ObjectFromHandle(handle);
while (keys.Count > 0) {
MSG msg = (MSG)keys.Dequeue();
XEvent xevent = new XEvent ();
xevent.type = (msg.message == Msg.WM_KEYUP ? XEventName.KeyRelease : XEventName.KeyPress);
xevent.KeyEvent.display = DisplayHandle;
if (hwnd != null) {
xevent.KeyEvent.window = hwnd.whole_window;
} else {
xevent.KeyEvent.window = IntPtr.Zero;
}
xevent.KeyEvent.keycode = Keyboard.ToKeycode((int)msg.wParam);
hwnd.Queue.EnqueueLocked (xevent);
}
return count;
}
internal override void SetCursorPos(IntPtr handle, int x, int y)
{
if (handle == IntPtr.Zero) {
lock (XlibLock) {
IntPtr root, child;
int root_x, root_y, child_x, child_y, mask;
/* we need to do a
* QueryPointer before warping
* because if the warp is on
* the RootWindow, the x/y are
* relative to the current
* mouse position
*/
QueryPointer (DisplayHandle, RootWindow,
out root,
out child,
out root_x, out root_y,
out child_x, out child_y,
out mask);
XWarpPointer(DisplayHandle, IntPtr.Zero, IntPtr.Zero, 0, 0, 0, 0, x - root_x, y - root_y);
XFlush (DisplayHandle);
/* then we need to a
* QueryPointer after warping
* to manually generate a
* motion event for the window
* we move into.
*/
QueryPointer (DisplayHandle, RootWindow,
out root,
out child,
out root_x, out root_y,
out child_x, out child_y,
out mask);
Hwnd child_hwnd = Hwnd.ObjectFromHandle(child);
if (child_hwnd == null) {
return;
}
XEvent xevent = new XEvent ();
xevent.type = XEventName.MotionNotify;
xevent.MotionEvent.display = DisplayHandle;
xevent.MotionEvent.window = child_hwnd.client_window;
xevent.MotionEvent.root = RootWindow;
xevent.MotionEvent.x = child_x;
xevent.MotionEvent.y = child_y;
xevent.MotionEvent.x_root = root_x;
xevent.MotionEvent.y_root = root_y;
xevent.MotionEvent.state = mask;
child_hwnd.Queue.EnqueueLocked (xevent);
}
} else {
Hwnd hwnd;
hwnd = Hwnd.ObjectFromHandle(handle);
lock (XlibLock) {
XWarpPointer(DisplayHandle, IntPtr.Zero, hwnd.client_window, 0, 0, 0, 0, x, y);
}
}
}
void UpdateMessageQueue (XEventQueue queue, bool allowIdle) {
DateTime now;
int pending;
Hwnd hwnd;
now = DateTime.UtcNow;
lock (XlibLock) {
pending = XPending (DisplayHandle);
}
if (pending == 0 && allowIdle) {
if ((queue == null || queue.DispatchIdle) && Idle != null) {
Idle (this, EventArgs.Empty);
}
lock (XlibLock) {
pending = XPending (DisplayHandle);
}
}
if (pending == 0) {
int timeout = 0;
if (queue != null) {
if (queue.Paint.Count > 0)
return;
timeout = NextTimeout (queue.timer_list, now);
}
if (timeout > 0) {
#if __MonoCS__
int length = pollfds.Length - 1;
lock (wake_waiting_lock) {
if (wake_waiting == false) {
length ++;
wake_waiting = true;
}
}
Syscall.poll (pollfds, (uint)length, timeout);
// Clean out buffer, so we're not busy-looping on the same data
if (length == pollfds.Length) {
if (pollfds[1].revents != 0)
wake_receive.Receive(network_buffer, 0, 1, SocketFlags.None);
lock (wake_waiting_lock) {
wake_waiting = false;
}
}
#endif
lock (XlibLock) {
pending = XPending (DisplayHandle);
}
}
}
if (queue != null)
CheckTimers (queue.timer_list, now);
while (true) {
XEvent xevent = new XEvent ();
lock (XlibLock) {
if (XPending (DisplayHandle) == 0)
break;
XNextEvent (DisplayHandle, ref xevent);
if (xevent.AnyEvent.type == XEventName.KeyPress ||
xevent.AnyEvent.type == XEventName.KeyRelease) {
// PreFilter() handles "shift key state updates.
Keyboard.PreFilter (xevent);
if (XFilterEvent (ref xevent, Keyboard.ClientWindow)) {
// probably here we could raise WM_IME_KEYDOWN and
// WM_IME_KEYUP, but I'm not sure it is worthy.
continue;
}
}
else if (XFilterEvent (ref xevent, IntPtr.Zero))
continue;
}
hwnd = Hwnd.GetObjectFromWindow(xevent.AnyEvent.window);
if (hwnd == null)
continue;
DebugHelper.WriteLine ("UpdateMessageQueue got Event: " + xevent.ToString ());
switch (xevent.type) {
case XEventName.Expose:
AddExpose (hwnd, xevent.ExposeEvent.window == hwnd.ClientWindow, xevent.ExposeEvent.x, xevent.ExposeEvent.y, xevent.ExposeEvent.width, xevent.ExposeEvent.height);
break;
case XEventName.SelectionClear: {
// Should we do something?
break;
}
case XEventName.SelectionRequest: {
if (Dnd.HandleSelectionRequestEvent (ref xevent))
break;
XEvent sel_event;
sel_event = new XEvent();
sel_event.SelectionEvent.type = XEventName.SelectionNotify;
sel_event.SelectionEvent.send_event = true;
sel_event.SelectionEvent.display = DisplayHandle;
sel_event.SelectionEvent.selection = xevent.SelectionRequestEvent.selection;
sel_event.SelectionEvent.target = xevent.SelectionRequestEvent.target;
sel_event.SelectionEvent.requestor = xevent.SelectionRequestEvent.requestor;
sel_event.SelectionEvent.time = xevent.SelectionRequestEvent.time;
sel_event.SelectionEvent.property = IntPtr.Zero;
IntPtr format_atom = xevent.SelectionRequestEvent.target;
// Seems that some apps support asking for supported types
if (format_atom == TARGETS) {
int[] atoms;
int atom_count;
atoms = new int[5];
atom_count = 0;
if (Clipboard.IsSourceText) {
atoms[atom_count++] = (int)Atom.XA_STRING;
atoms[atom_count++] = (int)OEMTEXT;
atoms[atom_count++] = (int)UTF8_STRING;
atoms[atom_count++] = (int)UTF16_STRING;
atoms[atom_count++] = (int)RICHTEXTFORMAT;
} else if (Clipboard.IsSourceImage) {
atoms[atom_count++] = (int)Atom.XA_PIXMAP;
atoms[atom_count++] = (int)Atom.XA_BITMAP;
} else {
// FIXME - handle other types
}
XChangeProperty(DisplayHandle, xevent.SelectionRequestEvent.requestor, (IntPtr)xevent.SelectionRequestEvent.property,
(IntPtr)xevent.SelectionRequestEvent.target, 32, PropertyMode.Replace, atoms, atom_count);
sel_event.SelectionEvent.property = xevent.SelectionRequestEvent.property;
} else if (format_atom == (IntPtr)RICHTEXTFORMAT) {
string rtf_text = Clipboard.GetRtfText ();
if (rtf_text != null) {
// The RTF spec mentions that ascii is enough to contain it
Byte [] bytes = Encoding.ASCII.GetBytes (rtf_text);
int buflen = bytes.Length;
IntPtr buffer = Marshal.AllocHGlobal (buflen);
for (int i = 0; i < buflen; i++)
Marshal.WriteByte (buffer, i, bytes[i]);
XChangeProperty(DisplayHandle, xevent.SelectionRequestEvent.requestor, (IntPtr)xevent.SelectionRequestEvent.property,
(IntPtr)xevent.SelectionRequestEvent.target, 8, PropertyMode.Replace, buffer, buflen);
sel_event.SelectionEvent.property = xevent.SelectionRequestEvent.property;
Marshal.FreeHGlobal(buffer);
}
} else if (Clipboard.IsSourceText &&
(format_atom == (IntPtr)Atom.XA_STRING
|| format_atom == OEMTEXT
|| format_atom == UTF16_STRING
|| format_atom == UTF8_STRING)) {
IntPtr buffer = IntPtr.Zero;
int buflen;
Encoding encoding = null;
buflen = 0;
// Select an encoding depending on the target
IntPtr target_atom = xevent.SelectionRequestEvent.target;
if (target_atom == (IntPtr)Atom.XA_STRING || target_atom == OEMTEXT)
// FIXME - EOMTEXT should encode into ISO2022
encoding = Encoding.ASCII;
else if (target_atom == UTF16_STRING)
encoding = Encoding.Unicode;
else if (target_atom == UTF8_STRING)
encoding = Encoding.UTF8;
Byte [] bytes;
bytes = encoding.GetBytes (Clipboard.GetPlainText ());
buffer = Marshal.AllocHGlobal (bytes.Length);
buflen = bytes.Length;
for (int i = 0; i < buflen; i++)
Marshal.WriteByte (buffer, i, bytes [i]);
if (buffer != IntPtr.Zero) {
XChangeProperty(DisplayHandle, xevent.SelectionRequestEvent.requestor, (IntPtr)xevent.SelectionRequestEvent.property, (IntPtr)xevent.SelectionRequestEvent.target, 8, PropertyMode.Replace, buffer, buflen);
sel_event.SelectionEvent.property = xevent.SelectionRequestEvent.property;
Marshal.FreeHGlobal(buffer);
}
} else if (Clipboard.GetSource (format_atom.ToInt32 ()) != null) { // check if we have an available value of this format
if (DataFormats.GetFormat (format_atom.ToInt32 ()).is_serializable) {
object serializable = Clipboard.GetSource (format_atom.ToInt32 ());
BinaryFormatter formatter = new BinaryFormatter ();
MemoryStream memory_stream = new MemoryStream ();
formatter.Serialize (memory_stream, serializable);
int buflen = (int)memory_stream.Length;
IntPtr buffer = Marshal.AllocHGlobal (buflen);
memory_stream.Position = 0;
for (int i = 0; i < buflen; i++)
Marshal.WriteByte (buffer, i, (byte)memory_stream.ReadByte ());
memory_stream.Close ();
XChangeProperty (DisplayHandle, xevent.SelectionRequestEvent.requestor, (IntPtr)xevent.SelectionRequestEvent.property, (IntPtr)xevent.SelectionRequestEvent.target,
8, PropertyMode.Replace, buffer, buflen);
sel_event.SelectionEvent.property = xevent.SelectionRequestEvent.property;
Marshal.FreeHGlobal (buffer);
}
} else if (Clipboard.IsSourceImage) {
if (xevent.SelectionEvent.target == (IntPtr)Atom.XA_PIXMAP) {
// FIXME - convert image and store as property
} else if (xevent.SelectionEvent.target == (IntPtr)Atom.XA_PIXMAP) {
// FIXME - convert image and store as property
}
}
XSendEvent(DisplayHandle, xevent.SelectionRequestEvent.requestor, false, new IntPtr ((int)EventMask.NoEventMask), ref sel_event);
break;
}
case XEventName.SelectionNotify: {
if (Clipboard.Enumerating) {
Clipboard.Enumerating = false;
if (xevent.SelectionEvent.property != IntPtr.Zero) {
XDeleteProperty(DisplayHandle, FosterParent, (IntPtr)xevent.SelectionEvent.property);
if (!Clipboard.Formats.Contains(xevent.SelectionEvent.property)) {
Clipboard.Formats.Add(xevent.SelectionEvent.property);
DriverDebug("Got supported clipboard atom format: {0}", xevent.SelectionEvent.property);
}
}
} else if (Clipboard.Retrieving) {
Clipboard.Retrieving = false;
if (xevent.SelectionEvent.property != IntPtr.Zero) {
TranslatePropertyToClipboard(xevent.SelectionEvent.property);
} else {
Clipboard.ClearSources ();
Clipboard.Item = null;
}
} else {
Dnd.HandleSelectionNotifyEvent (ref xevent);
}
break;
}
case XEventName.KeyRelease:
if (!detectable_key_auto_repeat && XPending (DisplayHandle) != 0) {
XEvent nextevent = new XEvent ();
XPeekEvent (DisplayHandle, ref nextevent);
if (nextevent.type == XEventName.KeyPress &&
nextevent.KeyEvent.keycode == xevent.KeyEvent.keycode &&
nextevent.KeyEvent.time == xevent.KeyEvent.time) {
continue;
}
}
goto case XEventName.KeyPress;
case XEventName.MotionNotify: {
XEvent peek;
/* we can't do motion compression across threads, so just punt if we don't match up */
if (Thread.CurrentThread == hwnd.Queue.Thread && hwnd.Queue.Count > 0) {
peek = hwnd.Queue.Peek();
if (peek.AnyEvent.type == XEventName.MotionNotify) {
continue;
}
}
goto case XEventName.KeyPress;
}
case XEventName.KeyPress:
hwnd.Queue.EnqueueLocked (xevent);
/* Process KeyPresses immediately. Otherwise multiple Compose messages as a result of a
* single physical keypress are not processed correctly */
return;
case XEventName.ButtonPress:
case XEventName.ButtonRelease:
case XEventName.EnterNotify:
case XEventName.LeaveNotify:
case XEventName.CreateNotify:
case XEventName.DestroyNotify:
case XEventName.FocusIn:
case XEventName.FocusOut:
case XEventName.ClientMessage:
case XEventName.ReparentNotify:
case XEventName.MapNotify:
case XEventName.UnmapNotify:
hwnd.Queue.EnqueueLocked (xevent);
break;
case XEventName.ConfigureNotify:
AddConfigureNotify(xevent);
break;
case XEventName.PropertyNotify:
DriverDebug ("UpdateMessageQueue (), got Event: {0}", xevent.ToString ());
if (xevent.PropertyEvent.atom == _NET_ACTIVE_WINDOW) {
IntPtr actual_atom;
int actual_format;
IntPtr nitems;
IntPtr bytes_after;
IntPtr prop = IntPtr.Zero;
IntPtr prev_active;
prev_active = ActiveWindow;
XGetWindowProperty(DisplayHandle, RootWindow, _NET_ACTIVE_WINDOW, IntPtr.Zero, new IntPtr (1), false, (IntPtr)Atom.XA_WINDOW, out actual_atom, out actual_format, out nitems, out bytes_after, ref prop);
if (((long)nitems > 0) && (prop != IntPtr.Zero)) {
ActiveWindow = Hwnd.GetHandleFromWindow((IntPtr)Marshal.ReadInt32(prop));
XFree(prop);
DebugHelper.WriteLine ("PropertyNotify: _NET_ACTIVE_WINDOW: previous = 0x{0:x}, new = 0x{1:x}", prev_active.ToInt32 (), ActiveWindow.ToInt32 ());
if (prev_active != ActiveWindow) {
if (prev_active != IntPtr.Zero) {
PostMessage(prev_active, Msg.WM_ACTIVATE, (IntPtr)WindowActiveFlags.WA_INACTIVE, IntPtr.Zero);
}
if (ActiveWindow != IntPtr.Zero) {
PostMessage(ActiveWindow, Msg.WM_ACTIVATE, (IntPtr)WindowActiveFlags.WA_ACTIVE, IntPtr.Zero);
}
}
if (ModalWindows.Count == 0) {
break;
} else {
// Modality Handling
//
// If there is a modal window on the stack and the new active
// window is MWF window, but not the modal one and not a non-modal
// child of the modal one, switch back to the modal window.
//
// To identify if a non-modal form is child of a modal form
// we match their ApplicationContexts, which will be the same.
// This is because each modal form runs the loop with a
// new ApplicationContext, which is inherited by the non-modal
// forms.
Form activeForm = Control.FromHandle (ActiveWindow) as Form;
if (activeForm != null) {
Form modalForm = Control.FromHandle ((IntPtr)ModalWindows.Peek()) as Form;
if (ActiveWindow != (IntPtr)ModalWindows.Peek() &&
(modalForm == null || activeForm.context == modalForm.context)) {
Activate((IntPtr)ModalWindows.Peek());
}
}
break;
}
}
}
else if (xevent.PropertyEvent.atom == _NET_WM_STATE) {
// invalidate our cache - we'll query again the next time someone does GetWindowState.
hwnd.cached_window_state = (FormWindowState)(-1);
PostMessage (hwnd.Handle, Msg.WM_WINDOWPOSCHANGED, IntPtr.Zero, IntPtr.Zero);
}
break;
}
}
}
internal static int XSendEvent(IntPtr display, IntPtr window, bool propagate, IntPtr event_mask, ref XEvent send_event)
{
DebugHelper.TraceWriteLine ("XSendEvent");
return _XSendEvent(display, window, propagate, event_mask, ref send_event);
}
void MouseHover(object sender, EventArgs e) {
XEvent xevent;
Hwnd hwnd;
HoverState.Timer.Enabled = false;
if (HoverState.Window != IntPtr.Zero) {
hwnd = Hwnd.GetObjectFromWindow(HoverState.Window);
if (hwnd != null) {
xevent = new XEvent ();
xevent.type = XEventName.ClientMessage;
xevent.ClientMessageEvent.display = DisplayHandle;
xevent.ClientMessageEvent.window = HoverState.Window;
xevent.ClientMessageEvent.message_type = HoverState.Atom;
xevent.ClientMessageEvent.format = 32;
xevent.ClientMessageEvent.ptr1 = (IntPtr) (HoverState.Y << 16 | HoverState.X);
hwnd.Queue.EnqueueLocked (xevent);
WakeupMain ();
}
}
}
internal static void XPeekEvent (IntPtr display, ref XEvent xevent)
{
DebugHelper.TraceWriteLine ("XPeekEvent");
_XPeekEvent (display, ref xevent);
}
internal override bool GetMessage(Object queue_id, ref MSG msg, IntPtr handle, int wFilterMin, int wFilterMax)
{
XEvent xevent;
bool client;
Hwnd hwnd;
ProcessNextMessage:
if (((XEventQueue)queue_id).Count > 0) {
xevent = (XEvent) ((XEventQueue)queue_id).Dequeue ();
} else {
UpdateMessageQueue ((XEventQueue)queue_id);
if (((XEventQueue)queue_id).Count > 0) {
xevent = (XEvent) ((XEventQueue)queue_id).Dequeue ();
} else if (((XEventQueue)queue_id).Paint.Count > 0) {
xevent = ((XEventQueue)queue_id).Paint.Dequeue();
} else {
msg.hwnd= IntPtr.Zero;
msg.message = Msg.WM_ENTERIDLE;
return true;
}
}
hwnd = Hwnd.GetObjectFromWindow(xevent.AnyEvent.window);
#if DriverDebugDestroy
if (hwnd != null)
if (hwnd.zombie)
Console.WriteLine ( "GetMessage zombie, got Event: " + xevent.ToString () + " for 0x{0:x}", hwnd.Handle.ToInt32());
else
Console.WriteLine ( "GetMessage, got Event: " + xevent.ToString () + " for 0x{0:x}", hwnd.Handle.ToInt32());
#endif
// Handle messages for windows that are already or are about to be destroyed.
// we need a special block for this because unless we remove the hwnd from the paint
// queue it will always stay there (since we don't handle the expose), and we'll
// effectively loop infinitely trying to repaint a non-existant window.
if (hwnd != null && hwnd.zombie && xevent.type == XEventName.Expose) {
hwnd.expose_pending = hwnd.nc_expose_pending = false;
hwnd.Queue.Paint.Remove (hwnd);
goto ProcessNextMessage;
}
// We need to make sure we only allow DestroyNotify events through for zombie
// hwnds, since much of the event handling code makes requests using the hwnd's
// client_window, and that'll result in BadWindow errors if there's some lag
// between the XDestroyWindow call and the DestroyNotify event.
if (hwnd == null || hwnd.zombie && xevent.AnyEvent.type != XEventName.ClientMessage) {
DriverDebug("GetMessage(): Got message {0} for non-existent or already destroyed window {1:X}", xevent.type, xevent.AnyEvent.window.ToInt32());
goto ProcessNextMessage;
}
// If we get here, that means the window is no more but there are Client Messages
// to be processed, probably a Posted message (for instance, an WM_ACTIVATE message)
// We don't want anything else to run but the ClientMessage block, so reset all hwnd
// properties that might cause other processing to occur.
if (hwnd.zombie) {
hwnd.resizing_or_moving = false;
}
if (hwnd.client_window == xevent.AnyEvent.window) {
client = true;
//Console.WriteLine("Client message {1}, sending to window {0:X}", msg.hwnd.ToInt32(), xevent.type);
} else {
client = false;
//Console.WriteLine("Non-Client message, sending to window {0:X}", msg.hwnd.ToInt32());
}
msg.hwnd = hwnd.Handle;
// Windows sends WM_ENTERSIZEMOVE when a form resize/move operation starts and WM_EXITSIZEMOVE
// when it is done. The problem in X11 is that there is no concept of start-end of a moving/sizing.
// Configure events ("this window has resized/moved") are sent for each step of the resize. We send a
// WM_ENTERSIZEMOVE when we get the first Configure event. The problem is the WM_EXITSIZEMOVE.
//
// - There is no way for us to know which is the last Configure event. We can't traverse the events
// queue, because the next configure event might not be pending yet.
// - We can't get ButtonPress/Release events for the window decorations, because they are not part
// of the window(s) we manage.
// - We can't rely on the mouse state to change to "up" before the last Configure event. It doesn't.
//
// We are almost 100% guaranteed to get another event (e.g Expose or other), but we can't know for sure
// which, so we have here to check if the mouse buttons state is "up" and send the WM_EXITSIZEMOVE
//
if (hwnd.resizing_or_moving) {
int root_x, root_y, win_x, win_y, keys_buttons;
IntPtr root, child;
XQueryPointer (DisplayHandle, hwnd.Handle, out root, out child, out root_x, out root_y,
out win_x, out win_y, out keys_buttons);
if ((keys_buttons & (int)MouseKeyMasks.Button1Mask) == 0 &&
(keys_buttons & (int)MouseKeyMasks.Button2Mask) == 0 &&
(keys_buttons & (int)MouseKeyMasks.Button3Mask) == 0) {
hwnd.resizing_or_moving = false;
SendMessage (hwnd.Handle, Msg.WM_EXITSIZEMOVE, IntPtr.Zero, IntPtr.Zero);
}
}
//
// If you add a new event to this switch make sure to add it in
// UpdateMessage also unless it is not coming through the X event system.
//
switch(xevent.type) {
case XEventName.KeyPress: {
Keyboard.KeyEvent (FocusWindow, xevent, ref msg);
// F1 key special case - WM_HELP sending
if (msg.wParam == (IntPtr)VirtualKeys.VK_F1 || msg.wParam == (IntPtr)VirtualKeys.VK_HELP) {
// Send wM_HELP and then return it as a keypress message in
// case it needs to be preproccessed.
HELPINFO helpInfo = new HELPINFO ();
GetCursorPos (IntPtr.Zero, out helpInfo.MousePos.x, out helpInfo.MousePos.y);
IntPtr helpInfoPtr = Marshal.AllocHGlobal (Marshal.SizeOf (helpInfo));
Marshal.StructureToPtr (helpInfo, helpInfoPtr, true);
NativeWindow.WndProc (FocusWindow, Msg.WM_HELP, IntPtr.Zero, helpInfoPtr);
Marshal.FreeHGlobal (helpInfoPtr);
}
break;
}
case XEventName.KeyRelease: {
Keyboard.KeyEvent (FocusWindow, xevent, ref msg);
break;
}
case XEventName.ButtonPress: {
switch(xevent.ButtonEvent.button) {
case 1: {
MouseState |= MouseButtons.Left;
if (client) {
msg.message = Msg.WM_LBUTTONDOWN;
msg.wParam = GetMousewParam (0);
} else {
msg.message = Msg.WM_NCLBUTTONDOWN;
msg.wParam = (IntPtr) NCHitTest (hwnd, xevent.MotionEvent.x, xevent.MotionEvent.y);
MenuToScreen (xevent.AnyEvent.window, ref xevent.ButtonEvent.x, ref xevent.ButtonEvent.y);
}
break;
}
case 2: {
MouseState |= MouseButtons.Middle;
if (client) {
msg.message = Msg.WM_MBUTTONDOWN;
msg.wParam = GetMousewParam (0);
} else {
msg.message = Msg.WM_NCMBUTTONDOWN;
msg.wParam = (IntPtr) NCHitTest (hwnd, xevent.MotionEvent.x, xevent.MotionEvent.y);
MenuToScreen (xevent.AnyEvent.window, ref xevent.ButtonEvent.x, ref xevent.ButtonEvent.y);
}
break;
}
case 3: {
MouseState |= MouseButtons.Right;
if (client) {
msg.message = Msg.WM_RBUTTONDOWN;
msg.wParam = GetMousewParam (0);
} else {
msg.message = Msg.WM_NCRBUTTONDOWN;
msg.wParam = (IntPtr) NCHitTest (hwnd, xevent.MotionEvent.x, xevent.MotionEvent.y);
MenuToScreen (xevent.AnyEvent.window, ref xevent.ButtonEvent.x, ref xevent.ButtonEvent.y);
}
break;
}
case 4: {
msg.hwnd = FocusWindow;
msg.message=Msg.WM_MOUSEWHEEL;
msg.wParam=GetMousewParam(120);
break;
}
case 5: {
msg.hwnd = FocusWindow;
msg.message=Msg.WM_MOUSEWHEEL;
msg.wParam=GetMousewParam(-120);
break;
}
}
msg.lParam=(IntPtr) (xevent.ButtonEvent.y << 16 | xevent.ButtonEvent.x);
mouse_position.X = xevent.ButtonEvent.x;
mouse_position.Y = xevent.ButtonEvent.y;
if (!hwnd.Enabled) {
IntPtr dummy;
msg.hwnd = hwnd.EnabledHwnd;
XTranslateCoordinates(DisplayHandle, xevent.AnyEvent.window, Hwnd.ObjectFromHandle(msg.hwnd).ClientWindow, xevent.ButtonEvent.x, xevent.ButtonEvent.y, out xevent.ButtonEvent.x, out xevent.ButtonEvent.y, out dummy);
msg.lParam = (IntPtr)(mouse_position.Y << 16 | mouse_position.X);
}
if (Grab.Hwnd != IntPtr.Zero) {
msg.hwnd = Grab.Hwnd;
}
if (ClickPending.Pending && ((((long)xevent.ButtonEvent.time - ClickPending.Time) < DoubleClickInterval) && (msg.wParam == ClickPending.wParam) && (msg.lParam == ClickPending.lParam) && (msg.message == ClickPending.Message))) {
// Looks like a genuine double click, clicked twice on the same spot with the same keys
switch(xevent.ButtonEvent.button) {
case 1: {
msg.message = client ? Msg.WM_LBUTTONDBLCLK : Msg.WM_NCLBUTTONDBLCLK;
break;
}
case 2: {
msg.message = client ? Msg.WM_MBUTTONDBLCLK : Msg.WM_NCMBUTTONDBLCLK;
break;
}
case 3: {
msg.message = client ? Msg.WM_RBUTTONDBLCLK : Msg.WM_NCRBUTTONDBLCLK;
break;
}
}
ClickPending.Pending = false;
} else {
ClickPending.Pending = true;
ClickPending.Hwnd = msg.hwnd;
ClickPending.Message = msg.message;
ClickPending.wParam = msg.wParam;
ClickPending.lParam = msg.lParam;
ClickPending.Time = (long)xevent.ButtonEvent.time;
}
if (msg.message == Msg.WM_LBUTTONDOWN || msg.message == Msg.WM_MBUTTONDOWN || msg.message == Msg.WM_RBUTTONDOWN) {
SendParentNotify(msg.hwnd, msg.message, mouse_position.X, mouse_position.Y);
}
break;
}
case XEventName.ButtonRelease: {
switch(xevent.ButtonEvent.button) {
case 1: {
if (client) {
msg.message = Msg.WM_LBUTTONUP;
} else {
msg.message = Msg.WM_NCLBUTTONUP;
msg.wParam = (IntPtr) NCHitTest (hwnd, xevent.MotionEvent.x, xevent.MotionEvent.y);
MenuToScreen (xevent.AnyEvent.window, ref xevent.ButtonEvent.x, ref xevent.ButtonEvent.y);
}
MouseState &= ~MouseButtons.Left;
msg.wParam = GetMousewParam (0);
break;
}
case 2: {
if (client) {
msg.message = Msg.WM_MBUTTONUP;
} else {
msg.message = Msg.WM_NCMBUTTONUP;
msg.wParam = (IntPtr) NCHitTest (hwnd, xevent.MotionEvent.x, xevent.MotionEvent.y);
MenuToScreen (xevent.AnyEvent.window, ref xevent.ButtonEvent.x, ref xevent.ButtonEvent.y);
}
MouseState &= ~MouseButtons.Middle;
msg.wParam = GetMousewParam (0);
break;
}
case 3: {
if (client) {
msg.message = Msg.WM_RBUTTONUP;
} else {
msg.message = Msg.WM_NCRBUTTONUP;
msg.wParam = (IntPtr) NCHitTest (hwnd, xevent.MotionEvent.x, xevent.MotionEvent.y);
MenuToScreen (xevent.AnyEvent.window, ref xevent.ButtonEvent.x, ref xevent.ButtonEvent.y);
}
MouseState &= ~MouseButtons.Right;
msg.wParam = GetMousewParam (0);
break;
}
case 4: {
goto ProcessNextMessage;
}
case 5: {
goto ProcessNextMessage;
}
}
if (!hwnd.Enabled) {
IntPtr dummy;
msg.hwnd = hwnd.EnabledHwnd;
XTranslateCoordinates(DisplayHandle, xevent.AnyEvent.window, Hwnd.ObjectFromHandle(msg.hwnd).ClientWindow, xevent.ButtonEvent.x, xevent.ButtonEvent.y, out xevent.ButtonEvent.x, out xevent.ButtonEvent.y, out dummy);
msg.lParam = (IntPtr)(mouse_position.Y << 16 | mouse_position.X);
}
if (Grab.Hwnd != IntPtr.Zero) {
msg.hwnd = Grab.Hwnd;
}
msg.lParam=(IntPtr) (xevent.ButtonEvent.y << 16 | xevent.ButtonEvent.x);
mouse_position.X = xevent.ButtonEvent.x;
mouse_position.Y = xevent.ButtonEvent.y;
// Win32 splurts MouseMove events all over the place, regardless of whether the mouse is actually moving or
// not, especially after mousedown and mouseup. To support apps relying on mousemove events between and after
// mouse clicks to repaint or whatever, we generate a mousemove event here. *sigh*
if (msg.message == Msg.WM_LBUTTONUP || msg.message == Msg.WM_MBUTTONUP || msg.message == Msg.WM_RBUTTONUP) {
XEvent motionEvent = new XEvent ();
motionEvent.type = XEventName.MotionNotify;
motionEvent.MotionEvent.display = DisplayHandle;
motionEvent.MotionEvent.window = xevent.ButtonEvent.window;
motionEvent.MotionEvent.x = xevent.ButtonEvent.x;
motionEvent.MotionEvent.y = xevent.ButtonEvent.y;
hwnd.Queue.EnqueueLocked (motionEvent);
}
break;
}
case XEventName.MotionNotify: {
if (client) {
DriverDebug("GetMessage(): Window {0:X} MotionNotify x={1} y={2}",
client ? hwnd.client_window.ToInt32() : hwnd.whole_window.ToInt32(),
xevent.MotionEvent.x, xevent.MotionEvent.y);
if (Grab.Hwnd != IntPtr.Zero) {
msg.hwnd = Grab.Hwnd;
} else {
if (hwnd.Enabled) {
NativeWindow.WndProc(msg.hwnd, Msg.WM_SETCURSOR, msg.hwnd, (IntPtr)HitTest.HTCLIENT);
}
}
if (xevent.MotionEvent.is_hint != 0)
{
IntPtr root, child;
int mask;
XQueryPointer (DisplayHandle, xevent.AnyEvent.window,
out root, out child,
out xevent.MotionEvent.x_root,
out xevent.MotionEvent.y_root,
out xevent.MotionEvent.x,
out xevent.MotionEvent.y, out mask);
}
msg.message = Msg.WM_MOUSEMOVE;
msg.wParam = GetMousewParam(0);
msg.lParam = (IntPtr) (xevent.MotionEvent.y << 16 | xevent.MotionEvent.x & 0xFFFF);
if (!hwnd.Enabled) {
IntPtr dummy;
msg.hwnd = hwnd.EnabledHwnd;
XTranslateCoordinates(DisplayHandle, xevent.AnyEvent.window, Hwnd.ObjectFromHandle(msg.hwnd).ClientWindow, xevent.MotionEvent.x, xevent.MotionEvent.y, out xevent.MotionEvent.x, out xevent.MotionEvent.y, out dummy);
msg.lParam = (IntPtr)(mouse_position.Y << 16 | mouse_position.X);
}
mouse_position.X = xevent.MotionEvent.x;
mouse_position.Y = xevent.MotionEvent.y;
if ((HoverState.Timer.Enabled) &&
(((mouse_position.X + HoverState.Size.Width) < HoverState.X) ||
((mouse_position.X - HoverState.Size.Width) > HoverState.X) ||
((mouse_position.Y + HoverState.Size.Height) < HoverState.Y) ||
((mouse_position.Y - HoverState.Size.Height) > HoverState.Y))) {
HoverState.Timer.Stop();
HoverState.Timer.Start();
HoverState.X = mouse_position.X;
HoverState.Y = mouse_position.Y;
}
break;
} else {
HitTest ht;
IntPtr dummy;
DriverDebug("GetMessage(): non-client area {0:X} MotionNotify x={1} y={2}",
client ? hwnd.client_window.ToInt32() : hwnd.whole_window.ToInt32(),
xevent.MotionEvent.x, xevent.MotionEvent.y);
msg.message = Msg.WM_NCMOUSEMOVE;
if (!hwnd.Enabled) {
msg.hwnd = hwnd.EnabledHwnd;
XTranslateCoordinates(DisplayHandle, xevent.AnyEvent.window, Hwnd.ObjectFromHandle(msg.hwnd).ClientWindow, xevent.MotionEvent.x, xevent.MotionEvent.y, out xevent.MotionEvent.x, out xevent.MotionEvent.y, out dummy);
msg.lParam = (IntPtr)(mouse_position.Y << 16 | mouse_position.X);
}
ht = NCHitTest (hwnd, xevent.MotionEvent.x, xevent.MotionEvent.y);
NativeWindow.WndProc(hwnd.client_window, Msg.WM_SETCURSOR, msg.hwnd, (IntPtr)ht);
mouse_position.X = xevent.MotionEvent.x;
mouse_position.Y = xevent.MotionEvent.y;
}
break;
}
case XEventName.EnterNotify: {
if (!hwnd.Enabled) {
goto ProcessNextMessage;
}
if (xevent.CrossingEvent.mode == NotifyMode.NotifyGrab || xevent.AnyEvent.window != hwnd.client_window) {
goto ProcessNextMessage;
}
if (xevent.CrossingEvent.mode == NotifyMode.NotifyUngrab) { // Pseudo motion caused by grabbing
if (LastPointerWindow == xevent.AnyEvent.window)
goto ProcessNextMessage;
if (LastPointerWindow != IntPtr.Zero) {
Point enter_loc = new Point (xevent.ButtonEvent.x, xevent.ButtonEvent.y);
// We need this due to EnterNotify being fired on all the parent controls
// of the Control being grabbed, and obviously in that scenario we are not
// actuallty entering them
Control ctrl = Control.FromHandle (hwnd.client_window);
foreach (Control child_control in ctrl.Controls.GetAllControls ())
if (child_control.Bounds.Contains (enter_loc))
goto ProcessNextMessage;
// A MouseLeave/LeaveNotify event is sent to the previous window
// until the mouse is ungrabbed, not when actually leaving its bounds
int x = xevent.CrossingEvent.x_root;
int y = xevent.CrossingEvent.y_root;
ScreenToClient (LastPointerWindow, ref x, ref y);
XEvent leaveEvent = new XEvent ();
leaveEvent.type = XEventName.LeaveNotify;
leaveEvent.CrossingEvent.display = DisplayHandle;
leaveEvent.CrossingEvent.window = LastPointerWindow;
leaveEvent.CrossingEvent.x = x;
leaveEvent.CrossingEvent.y = y;
leaveEvent.CrossingEvent.mode = NotifyMode.NotifyNormal;
Hwnd last_pointer_hwnd = Hwnd.ObjectFromHandle (LastPointerWindow);
last_pointer_hwnd.Queue.EnqueueLocked (leaveEvent);
}
}
LastPointerWindow = xevent.AnyEvent.window;
msg.message = Msg.WM_MOUSE_ENTER;
HoverState.X = xevent.CrossingEvent.x;
HoverState.Y = xevent.CrossingEvent.y;
HoverState.Timer.Enabled = true;
HoverState.Window = xevent.CrossingEvent.window;
// Win32 sends a WM_MOUSEMOVE after mouse enter
XEvent motionEvent = new XEvent ();
motionEvent.type = XEventName.MotionNotify;
motionEvent.MotionEvent.display = DisplayHandle;
motionEvent.MotionEvent.window = xevent.ButtonEvent.window;
motionEvent.MotionEvent.x = xevent.ButtonEvent.x;
motionEvent.MotionEvent.y = xevent.ButtonEvent.y;
hwnd.Queue.EnqueueLocked (motionEvent);
break;
}
case XEventName.LeaveNotify: {
if (xevent.CrossingEvent.mode == NotifyMode.NotifyUngrab) {
WindowUngrabbed (hwnd.Handle);
goto ProcessNextMessage;
}
if (!hwnd.Enabled) {
goto ProcessNextMessage;
}
if ((xevent.CrossingEvent.mode != NotifyMode.NotifyNormal) || (xevent.CrossingEvent.window != hwnd.client_window)) {
goto ProcessNextMessage;
}
// If a grab is taking place, ignore it - we handle it in EnterNotify
if (Grab.Hwnd != IntPtr.Zero)
goto ProcessNextMessage;
// Reset the cursor explicitly on X11.
// X11 remembers the last set cursor for the window and in cases where
// the control won't get a WM_SETCURSOR X11 will restore the last
// known cursor, which we don't want.
//
SetCursor (hwnd.client_window, IntPtr.Zero);
msg.message=Msg.WM_MOUSELEAVE;
HoverState.Timer.Enabled = false;
HoverState.Window = IntPtr.Zero;
break;
}
#if later
case XEventName.CreateNotify: {
if (client && (xevent.ConfigureEvent.xevent == xevent.ConfigureEvent.window)) {
msg.message = WM_CREATE;
// Set up CreateStruct
} else {
goto ProcessNextMessage;
}
break;
}
#endif
case XEventName.ReparentNotify: {
if (hwnd.parent == null) { // Toplevel
if ((xevent.ReparentEvent.parent != IntPtr.Zero) && (xevent.ReparentEvent.window == hwnd.whole_window)) {
hwnd.Reparented = true;
// The location given by the event is not reliable between different wm's,
// so use an alternative way of getting it.
Point location = GetTopLevelWindowLocation (hwnd);
hwnd.X = location.X;
hwnd.Y = location.Y;
if (hwnd.opacity != 0xffffffff) {
IntPtr opacity;
opacity = (IntPtr)(Int32)hwnd.opacity;
XChangeProperty(DisplayHandle, XGetParent(hwnd.whole_window), _NET_WM_WINDOW_OPACITY, (IntPtr)Atom.XA_CARDINAL, 32, PropertyMode.Replace, ref opacity, 1);
}
SendMessage(msg.hwnd, Msg.WM_WINDOWPOSCHANGED, msg.wParam, msg.lParam);
goto ProcessNextMessage;
} else {
hwnd.Reparented = false;
goto ProcessNextMessage;
}
}
goto ProcessNextMessage;
}
case XEventName.ConfigureNotify: {
if (!client && (xevent.ConfigureEvent.xevent == xevent.ConfigureEvent.window)) { // Ignore events for children (SubstructureNotify) and client areas
DriverDebug("GetMessage(): Window {0:X} ConfigureNotify x={1} y={2} width={3} height={4}",
hwnd.client_window.ToInt32(), xevent.ConfigureEvent.x,
xevent.ConfigureEvent.y, xevent.ConfigureEvent.width, xevent.ConfigureEvent.height);
lock (hwnd.configure_lock) {
Form form = Control.FromHandle (hwnd.client_window) as Form;
if (form != null && !hwnd.resizing_or_moving) {
if (hwnd.x != form.Bounds.X || hwnd.y != form.Bounds.Y) {
SendMessage (form.Handle, Msg.WM_SYSCOMMAND, (IntPtr)SystemCommands.SC_MOVE, IntPtr.Zero);
hwnd.resizing_or_moving = true;
} else if (hwnd.width != form.Bounds.Width || hwnd.height != form.Bounds.Height) {
SendMessage (form.Handle, Msg.WM_SYSCOMMAND, (IntPtr)SystemCommands.SC_SIZE, IntPtr.Zero);
hwnd.resizing_or_moving = true;
}
if (hwnd.resizing_or_moving)
SendMessage (form.Handle, Msg.WM_ENTERSIZEMOVE, IntPtr.Zero, IntPtr.Zero);
}
SendMessage(msg.hwnd, Msg.WM_WINDOWPOSCHANGED, IntPtr.Zero, IntPtr.Zero);
hwnd.configure_pending = false;
// We need to adjust our client window to track the resize of whole_window
if (hwnd.whole_window != hwnd.client_window)
PerformNCCalc(hwnd);
}
}
goto ProcessNextMessage;
}
case XEventName.FocusIn: {
// We received focus. We use X11 focus only to know if the app window does or does not have focus
// We do not track the actual focussed window via it. Instead, this is done via FocusWindow internally
// Receiving focus means we've gotten activated and therefore we need to let the actual FocusWindow know
// about it having focus again
if (xevent.FocusChangeEvent.detail != NotifyDetail.NotifyNonlinear) {
goto ProcessNextMessage;
}
if (FocusWindow == IntPtr.Zero) {
Control c = Control.FromHandle (hwnd.client_window);
if (c == null)
goto ProcessNextMessage;
Form form = c.FindForm ();
if (form == null)
goto ProcessNextMessage;
if (ActiveWindow != form.Handle) {
ActiveWindow = form.Handle;
SendMessage (ActiveWindow, Msg.WM_ACTIVATE, (IntPtr) WindowActiveFlags.WA_ACTIVE, IntPtr.Zero);
}
goto ProcessNextMessage;
}
Keyboard.FocusIn (FocusWindow);
SendMessage(FocusWindow, Msg.WM_SETFOCUS, IntPtr.Zero, IntPtr.Zero);
goto ProcessNextMessage;
}
case XEventName.FocusOut: {
// Se the comment for our FocusIn handler
if (xevent.FocusChangeEvent.detail != NotifyDetail.NotifyNonlinear) {
goto ProcessNextMessage;
}
while (Keyboard.ResetKeyState(FocusWindow, ref msg)) {
SendMessage(FocusWindow, msg.message, msg.wParam, msg.lParam);
}
Keyboard.FocusOut(hwnd.client_window);
SendMessage(FocusWindow, Msg.WM_KILLFOCUS, IntPtr.Zero, IntPtr.Zero);
goto ProcessNextMessage;
}
// We are already firing WM_SHOWWINDOW messages in the proper places, but I'm leaving this code
// in case we break a scenario not taken into account in the tests
case XEventName.MapNotify: {
/*if (client && (xevent.ConfigureEvent.xevent == xevent.ConfigureEvent.window)) { // Ignore events for children (SubstructureNotify) and client areas
hwnd.mapped = true;
msg.message = Msg.WM_SHOWWINDOW;
msg.wParam = (IntPtr) 1;
// XXX we're missing the lParam..
break;
}*/
goto ProcessNextMessage;
}
case XEventName.UnmapNotify: {
/*if (client && (xevent.ConfigureEvent.xevent == xevent.ConfigureEvent.window)) { // Ignore events for children (SubstructureNotify) and client areas
hwnd.mapped = false;
msg.message = Msg.WM_SHOWWINDOW;
msg.wParam = (IntPtr) 0;
// XXX we're missing the lParam..
break;
}*/
goto ProcessNextMessage;
}
case XEventName.Expose: {
if (!hwnd.Mapped) {
if (client) {
hwnd.expose_pending = false;
} else {
hwnd.nc_expose_pending = false;
}
goto ProcessNextMessage;
}
if (client) {
if (!hwnd.expose_pending) {
goto ProcessNextMessage;
}
} else {
if (!hwnd.nc_expose_pending) {
goto ProcessNextMessage;
}
switch (hwnd.border_style) {
case FormBorderStyle.Fixed3D: {
Graphics g;
g = Graphics.FromHwnd(hwnd.whole_window);
if (hwnd.border_static)
ControlPaint.DrawBorder3D(g, new Rectangle(0, 0, hwnd.Width, hwnd.Height), Border3DStyle.SunkenOuter);
else
ControlPaint.DrawBorder3D(g, new Rectangle(0, 0, hwnd.Width, hwnd.Height), Border3DStyle.Sunken);
g.Dispose();
break;
}
case FormBorderStyle.FixedSingle: {
Graphics g;
g = Graphics.FromHwnd(hwnd.whole_window);
ControlPaint.DrawBorder(g, new Rectangle(0, 0, hwnd.Width, hwnd.Height), Color.Black, ButtonBorderStyle.Solid);
g.Dispose();
break;
}
}
DriverDebug("GetMessage(): Window {0:X} Exposed non-client area {1},{2} {3}x{4}",
hwnd.client_window.ToInt32(), xevent.ExposeEvent.x, xevent.ExposeEvent.y,
xevent.ExposeEvent.width, xevent.ExposeEvent.height);
Rectangle rect = new Rectangle (xevent.ExposeEvent.x, xevent.ExposeEvent.y, xevent.ExposeEvent.width, xevent.ExposeEvent.height);
Region region = new Region (rect);
IntPtr hrgn = region.GetHrgn (null); // Graphics object isn't needed
msg.message = Msg.WM_NCPAINT;
msg.wParam = hrgn == IntPtr.Zero ? (IntPtr)1 : hrgn;
msg.refobject = region;
break;
}
DriverDebug("GetMessage(): Window {0:X} Exposed area {1},{2} {3}x{4}",
hwnd.client_window.ToInt32(), xevent.ExposeEvent.x, xevent.ExposeEvent.y,
xevent.ExposeEvent.width, xevent.ExposeEvent.height);
if (Caret.Visible == true) {
Caret.Paused = true;
HideCaret();
}
if (Caret.Visible == true) {
ShowCaret();
Caret.Paused = false;
}
msg.message = Msg.WM_PAINT;
break;
}
case XEventName.DestroyNotify: {
// This is a bit tricky, we don't receive our own DestroyNotify, we only get those for our children
hwnd = Hwnd.ObjectFromHandle(xevent.DestroyWindowEvent.window);
// We may get multiple for the same window, act only one the first (when Hwnd still knows about it)
if ((hwnd != null) && (hwnd.client_window == xevent.DestroyWindowEvent.window)) {
CleanupCachedWindows (hwnd);
DriverDebug("Received X11 Destroy Notification for {0}", XplatUI.Window(hwnd.client_window));
msg.hwnd = hwnd.client_window;
msg.message=Msg.WM_DESTROY;
hwnd.Dispose();
} else {
goto ProcessNextMessage;
}
break;
}
case XEventName.ClientMessage: {
if (Dnd.HandleClientMessage (ref xevent)) {
goto ProcessNextMessage;
}
if (xevent.ClientMessageEvent.message_type == AsyncAtom) {
XplatUIDriverSupport.ExecuteClientMessage((GCHandle)xevent.ClientMessageEvent.ptr1);
goto ProcessNextMessage;
}
if (xevent.ClientMessageEvent.message_type == HoverState.Atom) {
msg.message = Msg.WM_MOUSEHOVER;
msg.wParam = GetMousewParam(0);
msg.lParam = (IntPtr) (xevent.ClientMessageEvent.ptr1);
return true;
}
if (xevent.ClientMessageEvent.message_type == (IntPtr)PostAtom) {
DebugHelper.Indent ();
DebugHelper.WriteLine (String.Format ("Posted message:" + (Msg) xevent.ClientMessageEvent.ptr2.ToInt32 () + " for 0x{0:x}", xevent.ClientMessageEvent.ptr1.ToInt32 ()));
DebugHelper.Unindent ();
msg.hwnd = xevent.ClientMessageEvent.ptr1;
msg.message = (Msg) xevent.ClientMessageEvent.ptr2.ToInt32 ();
msg.wParam = xevent.ClientMessageEvent.ptr3;
msg.lParam = xevent.ClientMessageEvent.ptr4;
if (msg.message == (Msg)Msg.WM_QUIT)
return false;
else
return true;
}
if (xevent.ClientMessageEvent.message_type == _XEMBED) {
#if DriverDebugXEmbed
Console.WriteLine("GOT EMBED MESSAGE {0:X}, detail {1:X}", xevent.ClientMessageEvent.ptr2.ToInt32(), xevent.ClientMessageEvent.ptr3.ToInt32());
#endif
if (xevent.ClientMessageEvent.ptr2.ToInt32() == (int)XEmbedMessage.EmbeddedNotify) {
XSizeHints hints = new XSizeHints();
IntPtr dummy;
XGetWMNormalHints(DisplayHandle, hwnd.whole_window, ref hints, out dummy);
hwnd.width = hints.max_width;
hwnd.height = hints.max_height;
hwnd.ClientRect = Rectangle.Empty;
SendMessage(msg.hwnd, Msg.WM_WINDOWPOSCHANGED, IntPtr.Zero, IntPtr.Zero);
}
}
if (xevent.ClientMessageEvent.message_type == WM_PROTOCOLS) {
if (xevent.ClientMessageEvent.ptr1 == WM_DELETE_WINDOW) {
SendMessage (msg.hwnd, Msg.WM_SYSCOMMAND, (IntPtr)SystemCommands.SC_CLOSE, IntPtr.Zero);
msg.message = Msg.WM_CLOSE;
return true;
}
// We should not get this, but I'll leave the code in case we need it in the future
if (xevent.ClientMessageEvent.ptr1 == WM_TAKE_FOCUS) {
goto ProcessNextMessage;
}
}
goto ProcessNextMessage;
}
default: {
goto ProcessNextMessage;
}
}
return true;
}
internal extern static IntPtr XNextEvent(IntPtr display, ref XEvent xevent);
internal override bool PostMessage (IntPtr handle, Msg message, IntPtr wparam, IntPtr lparam)
{
XEvent xevent = new XEvent ();
Hwnd hwnd = Hwnd.ObjectFromHandle(handle);
xevent.type = XEventName.ClientMessage;
xevent.ClientMessageEvent.display = DisplayHandle;
if (hwnd != null) {
xevent.ClientMessageEvent.window = hwnd.whole_window;
} else {
xevent.ClientMessageEvent.window = IntPtr.Zero;
}
xevent.ClientMessageEvent.message_type = (IntPtr) PostAtom;
xevent.ClientMessageEvent.format = 32;
xevent.ClientMessageEvent.ptr1 = handle;
xevent.ClientMessageEvent.ptr2 = (IntPtr) message;
xevent.ClientMessageEvent.ptr3 = wparam;
xevent.ClientMessageEvent.ptr4 = lparam;
if (hwnd != null)
hwnd.Queue.EnqueueLocked (xevent);
else
ThreadQueue(Thread.CurrentThread).EnqueueLocked (xevent);
return true;
}
internal extern static int XSendEvent(IntPtr display, IntPtr window, bool propagate, IntPtr event_mask, ref XEvent send_event);
bool GraphicsExposePredicate (IntPtr display, ref XEvent xevent, IntPtr arg)
{
return (xevent.type == XEventName.GraphicsExpose || xevent.type == XEventName.NoExpose) &&
arg == xevent.GraphicsExposeEvent.drawable;
}
internal extern static bool XFilterEvent(ref XEvent xevent, IntPtr window);
void ProcessGraphicsExpose (Hwnd hwnd)
{
XEvent xevent = new XEvent ();
IntPtr handle = Hwnd.HandleFromObject (hwnd);
EventPredicate predicate = GraphicsExposePredicate;
for (;;) {
XIfEvent (Display, ref xevent, predicate, handle);
if (xevent.type != XEventName.GraphicsExpose)
break;
AddExpose (hwnd, xevent.ExposeEvent.window == hwnd.ClientWindow, xevent.GraphicsExposeEvent.x, xevent.GraphicsExposeEvent.y,
xevent.GraphicsExposeEvent.width, xevent.GraphicsExposeEvent.height);
if (xevent.GraphicsExposeEvent.count == 0)
break;
}
}
internal extern static void XIfEvent (IntPtr display, ref XEvent xevent, Delegate event_predicate, IntPtr arg);
internal override void SendAsyncMethod (AsyncMethodData method)
{
Hwnd hwnd;
XEvent xevent = new XEvent ();
hwnd = Hwnd.ObjectFromHandle(method.Handle);
xevent.type = XEventName.ClientMessage;
xevent.ClientMessageEvent.display = DisplayHandle;
xevent.ClientMessageEvent.window = method.Handle;
xevent.ClientMessageEvent.message_type = (IntPtr)AsyncAtom;
xevent.ClientMessageEvent.format = 32;
xevent.ClientMessageEvent.ptr1 = (IntPtr) GCHandle.Alloc (method);
hwnd.Queue.EnqueueLocked (xevent);
WakeupMain ();
}
