FreeRDP/client/X11/xf_event.c

/**
 * FreeRDP: A Remote Desktop Protocol Implementation
 * X11 Event Handling
 *
 * Copyright 2011 Marc-Andre Moreau <marcandre.moreau@gmail.com>
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include <X11/Xlib.h>
#include <X11/Xutil.h>

#include <freerdp/log.h>
#include <freerdp/locale/keyboard.h>

#include "xf_rail.h"
#include "xf_window.h"
#include "xf_cliprdr.h"
#include "xf_input.h"
#include "xf_gfx.h"

#include "xf_event.h"
#include "xf_input.h"

#define TAG CLIENT_TAG("x11")

#define CLAMP_COORDINATES(x, y) if (x < 0) x = 0; if (y < 0) y = 0

const char* const X11_EVENT_STRINGS[] =
{
	"", "",
	"KeyPress",
	"KeyRelease",
	"ButtonPress",
	"ButtonRelease",
	"MotionNotify",
	"EnterNotify",
	"LeaveNotify",
	"FocusIn",
	"FocusOut",
	"KeymapNotify",
	"Expose",
	"GraphicsExpose",
	"NoExpose",
	"VisibilityNotify",
	"CreateNotify",
	"DestroyNotify",
	"UnmapNotify",
	"MapNotify",
	"MapRequest",
	"ReparentNotify",
	"ConfigureNotify",
	"ConfigureRequest",
	"GravityNotify",
	"ResizeRequest",
	"CirculateNotify",
	"CirculateRequest",
	"PropertyNotify",
	"SelectionClear",
	"SelectionRequest",
	"SelectionNotify",
	"ColormapNotify",
	"ClientMessage",
	"MappingNotify",
	"GenericEvent",
};

#ifdef WITH_DEBUG_X11
#define DEBUG_X11(...) WLog_DBG(TAG, __VA_ARGS__)
#else
#define DEBUG_X11(...) do { } while (0)
#endif

BOOL xf_event_action_script_init(xfContext* xfc)
{
	char* xevent;
	FILE* actionScript;
	char buffer[1024] = { 0 };
	char command[1024] = { 0 };
	xfc->xevents = ArrayList_New(TRUE);

	if (!xfc->xevents)
		return FALSE;

	ArrayList_Object(xfc->xevents)->fnObjectFree = free;
	sprintf_s(command, sizeof(command), "%s xevent", xfc->actionScript);
	actionScript = popen(command, "r");

	if (!actionScript)
		return FALSE;

	while (fgets(buffer, sizeof(buffer), actionScript))
	{
		strtok(buffer, "\n");
		xevent = _strdup(buffer);

		if (!xevent || ArrayList_Add(xfc->xevents, xevent) < 0)
		{
			ArrayList_Free(xfc->xevents);
			xfc->xevents = NULL;
			return FALSE;
		}
	}

	pclose(actionScript);
	return TRUE;
}

void xf_event_action_script_free(xfContext* xfc)
{
	if (xfc->xevents)
	{
		ArrayList_Free(xfc->xevents);
		xfc->xevents = NULL;
	}
}

static BOOL xf_event_execute_action_script(xfContext* xfc, XEvent* event)
{
	int index;
	int count;
	char* name;
	FILE* actionScript;
	BOOL match = FALSE;
	const char* xeventName;
	char buffer[1024] = { 0 };
	char command[1024] = { 0 };

	if (!xfc->actionScript || !xfc->xevents)
		return FALSE;

	if (event->type > (sizeof(X11_EVENT_STRINGS) / sizeof(const char*)))
		return FALSE;

	xeventName = X11_EVENT_STRINGS[event->type];
	count = ArrayList_Count(xfc->xevents);

	for (index = 0; index < count; index++)
	{
		name = (char*) ArrayList_GetItem(xfc->xevents, index);

		if (_stricmp(name, xeventName) == 0)
		{
			match = TRUE;
			break;
		}
	}

	if (!match)
		return FALSE;

	sprintf_s(command, sizeof(command), "%s xevent %s %lu",
	          xfc->actionScript, xeventName, (unsigned long) xfc->window->handle);
	actionScript = popen(command, "r");

	if (!actionScript)
		return FALSE;

	while (fgets(buffer, sizeof(buffer), actionScript))
	{
		strtok(buffer, "\n");
	}

	pclose(actionScript);
	return TRUE;
}

void xf_event_adjust_coordinates(xfContext* xfc, int* x, int* y)
{
	rdpSettings* settings;

	if (!xfc || !xfc->context.settings || !y || !x)
		return;

	settings = xfc->context.settings;

	if (!xfc->remote_app)
	{
#ifdef WITH_XRENDER

		if (xf_picture_transform_required(xfc))
		{
			double xScalingFactor = settings->DesktopWidth / (double)xfc->scaledWidth;
			double yScalingFactor = settings->DesktopHeight / (double)xfc->scaledHeight;
			*x = (int)((*x - xfc->offset_x) * xScalingFactor);
			*y = (int)((*y - xfc->offset_y) * yScalingFactor);
		}

#endif
	}

	CLAMP_COORDINATES(*x, *y);
}

static BOOL xf_event_Expose(xfContext* xfc, XEvent* event, BOOL app)
{
	int x, y;
	int w, h;
	rdpSettings* settings = xfc->context.settings;

	if (!app && (settings->SmartSizing || settings->MultiTouchGestures))
	{
		x = 0;
		y = 0;
		w = settings->DesktopWidth;
		h = settings->DesktopHeight;
	}
	else
	{
		x = event->xexpose.x;
		y = event->xexpose.y;
		w = event->xexpose.width;
		h = event->xexpose.height;
	}

	if (xfc->gfx)
	{
		xf_OutputExpose(xfc, x, y, w, h);
		return TRUE;
	}

	if (!app)
	{
		xf_draw_screen(xfc, x, y, w, h);
	}
	else
	{
		xfAppWindow* appWindow;
		appWindow = xf_AppWindowFromX11Window(xfc, event->xany.window);

		if (appWindow)
		{
			xf_UpdateWindowArea(xfc, appWindow, x, y, w, h);
		}
	}

	return TRUE;
}

static BOOL xf_event_VisibilityNotify(xfContext* xfc, XEvent* event, BOOL app)
{
	xfc->unobscured = event->xvisibility.state == VisibilityUnobscured;
	return TRUE;
}

BOOL xf_generic_MotionNotify(xfContext* xfc, int x, int y, int state,
                             Window window, BOOL app)
{
	rdpInput* input;
	Window childWindow;
	input = xfc->context.input;

	if (!xfc->context.settings->MouseMotion)
	{
		if ((state & (Button1Mask | Button2Mask | Button3Mask)) == 0)
			return TRUE;
	}

	if (app)
	{
		/* make sure window exists */
		if (!xf_AppWindowFromX11Window(xfc, window))
			return TRUE;

		/* Translate to desktop coordinates */
		XTranslateCoordinates(xfc->display, window,
		                      RootWindowOfScreen(xfc->screen),
		                      x, y, &x, &y, &childWindow);
	}

	xf_event_adjust_coordinates(xfc, &x, &y);
	input->MouseEvent(input, PTR_FLAGS_MOVE, x, y);

	if (xfc->fullscreen && !app)
	{
		XSetInputFocus(xfc->display, xfc->window->handle, RevertToPointerRoot,
		               CurrentTime);
	}

	return TRUE;
}

static BOOL xf_event_MotionNotify(xfContext* xfc, XEvent* event, BOOL app)
{
	if (xfc->use_xinput)
		return TRUE;

	return xf_generic_MotionNotify(xfc, event->xmotion.x, event->xmotion.y,
	                               event->xmotion.state, event->xmotion.window, app);
}

BOOL xf_generic_ButtonPress(xfContext* xfc, int x, int y, int button,
                            Window window, BOOL app)
{
	int flags;
	BOOL wheel;
	BOOL extended;
	rdpInput* input;
	Window childWindow;
	flags = 0;
	wheel = FALSE;
	extended = FALSE;
	input = xfc->context.input;

	switch (button)
	{
		case Button1:
		case Button2:
		case Button3:
			flags = PTR_FLAGS_DOWN | xfc->button_map[button - BUTTON_BASE];
			break;

		case 4:
			wheel = TRUE;
			flags = PTR_FLAGS_WHEEL | 0x0078;
			break;

		case 5:
			wheel = TRUE;
			flags = PTR_FLAGS_WHEEL | PTR_FLAGS_WHEEL_NEGATIVE | 0x0078;
			break;

		case 8:		/* back */
		case 97:	/* Xming */
			extended = TRUE;
			flags = PTR_XFLAGS_DOWN | PTR_XFLAGS_BUTTON1;
			break;

		case 9:		/* forward */
		case 112:	/* Xming */
			extended = TRUE;
			flags = PTR_XFLAGS_DOWN | PTR_XFLAGS_BUTTON2;
			break;

		case 6:		/* wheel left */
			wheel = TRUE;
			flags = PTR_FLAGS_HWHEEL | PTR_FLAGS_WHEEL_NEGATIVE | 0x0078;
			break;

		case 7:		/* wheel right */
			wheel = TRUE;
			flags = PTR_FLAGS_HWHEEL | 0x0078;
			break;

		default:
			x = 0;
			y = 0;
			flags = 0;
			break;
	}

	if (flags != 0)
	{
		if (wheel)
		{
			input->MouseEvent(input, flags, 0, 0);
		}
		else
		{
			if (app)
			{
				/* make sure window exists */
				if (!xf_AppWindowFromX11Window(xfc, window))
					return TRUE;

				/* Translate to desktop coordinates */
				XTranslateCoordinates(xfc->display, window,
				                      RootWindowOfScreen(xfc->screen),
				                      x, y, &x, &y, &childWindow);
			}

			xf_event_adjust_coordinates(xfc, &x, &y);

			if (extended)
				input->ExtendedMouseEvent(input, flags, x, y);
			else
				input->MouseEvent(input, flags, x, y);
		}
	}

	return TRUE;
}

static BOOL xf_event_ButtonPress(xfContext* xfc, XEvent* event, BOOL app)
{
	if (xfc->use_xinput)
		return TRUE;

	return xf_generic_ButtonPress(xfc, event->xbutton.x, event->xbutton.y,
	                              event->xbutton.button, event->xbutton.window, app);
}

BOOL xf_generic_ButtonRelease(xfContext* xfc, int x, int y, int button,
                              Window window, BOOL app)
{
	int flags;
	BOOL wheel;
	BOOL extended;
	rdpInput* input;
	Window childWindow;
	flags = 0;
	wheel = FALSE;
	extended = FALSE;
	input = xfc->context.input;

	switch (button)
	{
		case Button1:
		case Button2:
		case Button3:
			flags = xfc->button_map[button - BUTTON_BASE];
			break;

		case 6:
		case 8:
		case 97:
			extended = TRUE;
			flags = PTR_XFLAGS_BUTTON1;
			break;

		case 7:
		case 9:
		case 112:
			extended = TRUE;
			flags = PTR_XFLAGS_BUTTON2;
			break;

		default:
			flags = 0;
			break;
	}

	if (flags != 0)
	{
		if (app)
		{
			/* make sure window exists */
			if (!xf_AppWindowFromX11Window(xfc, window))
				return TRUE;

			/* Translate to desktop coordinates */
			XTranslateCoordinates(xfc->display, window,
			                      RootWindowOfScreen(xfc->screen),
			                      x, y, &x, &y, &childWindow);
		}

		xf_event_adjust_coordinates(xfc, &x, &y);

		if (extended)
			input->ExtendedMouseEvent(input, flags, x, y);
		else
			input->MouseEvent(input, flags, x, y);
	}

	return TRUE;
}

static BOOL xf_event_ButtonRelease(xfContext* xfc, XEvent* event, BOOL app)
{
	if (xfc->use_xinput)
		return TRUE;

	return xf_generic_ButtonRelease(xfc, event->xbutton.x, event->xbutton.y,
	                                event->xbutton.button, event->xbutton.window, app);
}

static BOOL xf_event_KeyPress(xfContext* xfc, XEvent* event, BOOL app)
{
	KeySym keysym;
	char str[256];
	XLookupString((XKeyEvent*) event, str, sizeof(str), &keysym, NULL);
	xf_keyboard_key_press(xfc, event->xkey.keycode, keysym);
	return TRUE;
}

static BOOL xf_event_KeyRelease(xfContext* xfc, XEvent* event, BOOL app)
{
	XEvent nextEvent;
	KeySym keysym;
	char str[256];

	if (XPending(xfc->display))
	{
		ZeroMemory(&nextEvent, sizeof(nextEvent));
		XPeekEvent(xfc->display, &nextEvent);

		if (nextEvent.type == KeyPress)
		{
			if (nextEvent.xkey.keycode == event->xkey.keycode)
				return TRUE;
		}
	}

	XLookupString((XKeyEvent*) event, str, sizeof(str), &keysym, NULL);
	xf_keyboard_key_release(xfc, event->xkey.keycode, keysym);
	return TRUE;
}

static BOOL xf_event_FocusIn(xfContext* xfc, XEvent* event, BOOL app)
{
	if (event->xfocus.mode == NotifyGrab)
		return TRUE;

	xfc->focused = TRUE;

	if (xfc->mouse_active && !app)
		XGrabKeyboard(xfc->display, xfc->window->handle, TRUE, GrabModeAsync,
		              GrabModeAsync, CurrentTime);

	if (app)
	{
		xfAppWindow* appWindow;
		xf_rail_send_activate(xfc, event->xany.window, TRUE);
		appWindow = xf_AppWindowFromX11Window(xfc, event->xany.window);

		/* Update the server with any window changes that occurred while the window was not focused. */
		if (appWindow)
		{
			xf_rail_adjust_position(xfc, appWindow);
		}
	}

	xf_keyboard_focus_in(xfc);
	return TRUE;
}

static BOOL xf_event_FocusOut(xfContext* xfc, XEvent* event, BOOL app)
{
	if (event->xfocus.mode == NotifyUngrab)
		return TRUE;

	xfc->focused = FALSE;

	if (event->xfocus.mode == NotifyWhileGrabbed)
		XUngrabKeyboard(xfc->display, CurrentTime);

	xf_keyboard_release_all_keypress(xfc);
	xf_keyboard_clear(xfc);

	if (app)
		xf_rail_send_activate(xfc, event->xany.window, FALSE);

	return TRUE;
}

static BOOL xf_event_MappingNotify(xfContext* xfc, XEvent* event, BOOL app)
{
	if (event->xmapping.request == MappingModifier)
	{
		if (xfc->modifierMap)
			XFreeModifiermap(xfc->modifierMap);

		xfc->modifierMap = XGetModifierMapping(xfc->display);
	}

	return TRUE;
}

static BOOL xf_event_ClientMessage(xfContext* xfc, XEvent* event, BOOL app)
{
	if ((event->xclient.message_type == xfc->WM_PROTOCOLS)
	    && ((Atom) event->xclient.data.l[0] == xfc->WM_DELETE_WINDOW))
	{
		if (app)
		{
			xfAppWindow* appWindow;
			appWindow = xf_AppWindowFromX11Window(xfc, event->xany.window);

			if (appWindow)
			{
				xf_rail_send_client_system_command(xfc, appWindow->windowId, SC_CLOSE);
			}

			return TRUE;
		}
		else
		{
			DEBUG_X11("Main window closed");
			return FALSE;
		}
	}

	return TRUE;
}

static BOOL xf_event_EnterNotify(xfContext* xfc, XEvent* event, BOOL app)
{
	if (!app)
	{
		xfc->mouse_active = TRUE;

		if (xfc->fullscreen)
			XSetInputFocus(xfc->display, xfc->window->handle, RevertToPointerRoot,
			               CurrentTime);

		if (xfc->focused)
			XGrabKeyboard(xfc->display, xfc->window->handle, TRUE, GrabModeAsync,
			              GrabModeAsync, CurrentTime);
	}
	else
	{
		xfAppWindow* appWindow;
		appWindow = xf_AppWindowFromX11Window(xfc, event->xany.window);

		/* keep track of which window has focus so that we can apply pointer updates */

		if (appWindow)
		{
			xfc->appWindow = appWindow;
		}
	}

	return TRUE;
}

static BOOL xf_event_LeaveNotify(xfContext* xfc, XEvent* event, BOOL app)
{
	if (!app)
	{
		xfc->mouse_active = FALSE;
		XUngrabKeyboard(xfc->display, CurrentTime);
	}

	return TRUE;
}

static BOOL xf_event_ConfigureNotify(xfContext* xfc, XEvent* event, BOOL app)
{
	Window childWindow;
	xfAppWindow* appWindow;
	rdpSettings* settings = xfc->context.settings;

	if (!app)
	{
		if (xfc->window->left != event->xconfigure.x)
			xfc->window->left = event->xconfigure.x;

		if (xfc->window->top != event->xconfigure.y)
			xfc->window->top = event->xconfigure.y;

		if (xfc->window->width != event->xconfigure.width ||
		    xfc->window->height != event->xconfigure.height)
		{
			xfc->window->width = event->xconfigure.width;
			xfc->window->height = event->xconfigure.height;
#ifdef WITH_XRENDER
			xfc->offset_x = 0;
			xfc->offset_y = 0;

			if (xfc->context.settings->SmartSizing
			    || xfc->context.settings->MultiTouchGestures)
			{
				xfc->scaledWidth = xfc->window->width;
				xfc->scaledHeight = xfc->window->height;
				xf_draw_screen(xfc, 0, 0, settings->DesktopWidth, settings->DesktopHeight);
			}
			else
			{
				xfc->scaledWidth = settings->DesktopWidth;
				xfc->scaledHeight = settings->DesktopHeight;
			}

#endif
		}

		return TRUE;
	}

	appWindow = xf_AppWindowFromX11Window(xfc, event->xany.window);

	if (appWindow)
	{
		/*
		 * ConfigureNotify coordinates are expressed relative to the window parent.
		 * Translate these to root window coordinates.
		 */
		XTranslateCoordinates(xfc->display, appWindow->handle,
		                      RootWindowOfScreen(xfc->screen),
		                      0, 0, &appWindow->x, &appWindow->y, &childWindow);
		appWindow->width = event->xconfigure.width;
		appWindow->height = event->xconfigure.height;

		/*
		 * Additional checks for not in a local move and not ignoring configure to send
		 * position update to server, also should the window not be focused then do not
		 * send to server yet (i.e. resizing using window decoration).
		 * The server will be updated when the window gets refocused.
		 */
		if (appWindow->decorations)
		{
			/* moving resizing using window decoration */
			xf_rail_adjust_position(xfc, appWindow);
		}
		else
		{
			if ((!event->xconfigure.send_event
			     || appWindow->local_move.state == LMS_NOT_ACTIVE)
			    && !appWindow->rail_ignore_configure && xfc->focused)
				xf_rail_adjust_position(xfc, appWindow);
		}
	}

	return TRUE;
}

static BOOL xf_event_MapNotify(xfContext* xfc, XEvent* event, BOOL app)
{
	RECTANGLE_16 rect;
	xfAppWindow* appWindow;
	rdpUpdate* update = xfc->context.update;
	rdpSettings* settings = xfc->context.settings;

	if (!app)
	{
		rect.left = 0;
		rect.top = 0;
		rect.right = settings->DesktopWidth;
		rect.bottom = settings->DesktopHeight;
		update->SuppressOutput((rdpContext*) xfc, 1, &rect);
	}
	else
	{
		appWindow = xf_AppWindowFromX11Window(xfc, event->xany.window);

		if (appWindow)
		{
			/* local restore event */
			/* This is now handled as part of the PropertyNotify
			 * Doing this here would inhibit the ability to restore a maximized window
			 * that is minimized back to the maximized state
			 */
			//xf_rail_send_client_system_command(xfc, appWindow->windowId, SC_RESTORE);
			appWindow->is_mapped = TRUE;
		}
	}

	return TRUE;
}

static BOOL xf_event_UnmapNotify(xfContext* xfc, XEvent* event, BOOL app)
{
	xfAppWindow* appWindow;
	rdpUpdate* update = xfc->context.update;
	xf_keyboard_release_all_keypress(xfc);

	if (!app)
	{
		update->SuppressOutput((rdpContext*) xfc, 0, NULL);
	}
	else
	{
		appWindow = xf_AppWindowFromX11Window(xfc, event->xany.window);

		if (appWindow)
		{
			appWindow->is_mapped = FALSE;
		}
	}

	return TRUE;
}

static BOOL xf_event_PropertyNotify(xfContext* xfc, XEvent* event, BOOL app)
{
	/*
	 * This section handles sending the appropriate commands to the rail server
	 * when the window has been minimized, maximized, restored locally
	 * ie. not using the buttons on the rail window itself
	 */
	if (app)
	{
		xfAppWindow* appWindow;
		appWindow = xf_AppWindowFromX11Window(xfc, event->xany.window);

		if (!appWindow)
			return TRUE;

		if ((((Atom) event->xproperty.atom == xfc->_NET_WM_STATE)
		     && (event->xproperty.state != PropertyDelete)) ||
		    (((Atom) event->xproperty.atom == xfc->WM_STATE)
		     && (event->xproperty.state != PropertyDelete)))
		{
			int i;
			BOOL status;
			BOOL maxVert = FALSE;
			BOOL maxHorz = FALSE;
			BOOL minimized = FALSE;
			unsigned long nitems;
			unsigned long bytes;
			unsigned char* prop;

			if ((Atom) event->xproperty.atom == xfc->_NET_WM_STATE)
			{
				status = xf_GetWindowProperty(xfc, event->xproperty.window,
				                              xfc->_NET_WM_STATE, 12, &nitems, &bytes, &prop);

				if (status)
				{
					for (i = 0; i < nitems; i++)
					{
						if ((Atom)((UINT16**) prop)[i] == XInternAtom(xfc->display,
						        "_NET_WM_STATE_MAXIMIZED_VERT", False))
						{
							maxVert = TRUE;
						}

						if ((Atom)((UINT16**) prop)[i] == XInternAtom(xfc->display,
						        "_NET_WM_STATE_MAXIMIZED_HORZ", False))
						{
							maxHorz = TRUE;
						}
					}

					XFree(prop);
				}
			}

			if ((Atom) event->xproperty.atom == xfc->WM_STATE)
			{
				status = xf_GetWindowProperty(xfc, event->xproperty.window,
				                              xfc->WM_STATE, 1, &nitems, &bytes, &prop);

				if (status)
				{
					/* If the window is in the iconic state */
					if (((UINT32) *prop == 3))
						minimized = TRUE;
					else
						minimized = FALSE;

					XFree(prop);
				}
			}

			if (maxVert && maxHorz && !minimized
			    && (appWindow->rail_state != WINDOW_SHOW_MAXIMIZED))
			{
				appWindow->rail_state = WINDOW_SHOW_MAXIMIZED;
				xf_rail_send_client_system_command(xfc, appWindow->windowId, SC_MAXIMIZE);
			}
			else if (minimized && (appWindow->rail_state != WINDOW_SHOW_MINIMIZED))
			{
				appWindow->rail_state = WINDOW_SHOW_MINIMIZED;
				xf_rail_send_client_system_command(xfc, appWindow->windowId, SC_MINIMIZE);
			}
			else if (!minimized && !maxVert && !maxHorz
			         && (appWindow->rail_state != WINDOW_SHOW))
			{
				appWindow->rail_state = WINDOW_SHOW;
				xf_rail_send_client_system_command(xfc, appWindow->windowId, SC_RESTORE);
			}
		}
	}

	return TRUE;
}

static BOOL xf_event_suppress_events(xfContext* xfc, xfAppWindow* appWindow,
                                     XEvent* event)
{
	if (!xfc->remote_app)
		return FALSE;

	switch (appWindow->local_move.state)
	{
		case LMS_NOT_ACTIVE:

			/* No local move in progress, nothing to do */

			/* Prevent Configure from happening during indeterminant state of Horz or Vert Max only */
			if ((event->type == ConfigureNotify) && appWindow->rail_ignore_configure)
			{
				appWindow->rail_ignore_configure = FALSE;
				return TRUE;
			}

			break;

		case LMS_STARTING:

			/* Local move initiated by RDP server, but we have not yet seen any updates from the X server */
			switch (event->type)
			{
				case ConfigureNotify:
					/* Starting to see move events from the X server. Local move is now in progress. */
					appWindow->local_move.state = LMS_ACTIVE;
					/* Allow these events to be processed during move to keep our state up to date. */
					break;

				case ButtonPress:
				case ButtonRelease:
				case KeyPress:
				case KeyRelease:
				case UnmapNotify:
					/*
					 * A button release event means the X window server did not grab the
					 * mouse before the user released it. In this case we must cancel the
					 * local move. The event will be processed below as normal, below.
					 */
					break;

				case VisibilityNotify:
				case PropertyNotify:
				case Expose:
					/* Allow these events to pass */
					break;

				default:
					/* Eat any other events */
					return TRUE;
			}

			break;

		case LMS_ACTIVE:

			/* Local move is in progress */
			switch (event->type)
			{
				case ConfigureNotify:
				case VisibilityNotify:
				case PropertyNotify:
				case Expose:
				case GravityNotify:
					/* Keep us up to date on position */
					break;

				default:
					/* Any other event terminates move */
					xf_rail_end_local_move(xfc, appWindow);
					break;
			}

			break;

		case LMS_TERMINATING:
			/* Already sent RDP end move to server. Allow events to pass. */
			break;
	}

	return FALSE;
}


BOOL xf_event_process(freerdp* instance, XEvent* event)
{
	BOOL status = TRUE;
	xfAppWindow* appWindow;
	xfContext* xfc = (xfContext*) instance->context;

	if (xfc->remote_app)
	{
		appWindow = xf_AppWindowFromX11Window(xfc, event->xany.window);

		if (appWindow)
		{
			/* Update "current" window for cursor change orders */
			xfc->appWindow = appWindow;

			if (xf_event_suppress_events(xfc, appWindow, event))
				return TRUE;
		}
	}

	xf_event_execute_action_script(xfc, event);

	if (event->type != MotionNotify)
		DEBUG_X11("%s Event(%d): wnd=0x%08lX", X11_EVENT_STRINGS[event->type],
		          event->type, (unsigned long) event->xany.window);

	switch (event->type)
	{
		case Expose:
			status = xf_event_Expose(xfc, event, xfc->remote_app);
			break;

		case VisibilityNotify:
			status = xf_event_VisibilityNotify(xfc, event, xfc->remote_app);
			break;

		case MotionNotify:
			status = xf_event_MotionNotify(xfc, event, xfc->remote_app);
			break;

		case ButtonPress:
			status = xf_event_ButtonPress(xfc, event, xfc->remote_app);
			break;

		case ButtonRelease:
			status = xf_event_ButtonRelease(xfc, event, xfc->remote_app);
			break;

		case KeyPress:
			status = xf_event_KeyPress(xfc, event, xfc->remote_app);
			break;

		case KeyRelease:
			status = xf_event_KeyRelease(xfc, event, xfc->remote_app);
			break;

		case FocusIn:
			status = xf_event_FocusIn(xfc, event, xfc->remote_app);
			break;

		case FocusOut:
			status = xf_event_FocusOut(xfc, event, xfc->remote_app);
			break;

		case EnterNotify:
			status = xf_event_EnterNotify(xfc, event, xfc->remote_app);
			break;

		case LeaveNotify:
			status = xf_event_LeaveNotify(xfc, event, xfc->remote_app);
			break;

		case NoExpose:
			break;

		case GraphicsExpose:
			break;

		case ConfigureNotify:
			status = xf_event_ConfigureNotify(xfc, event, xfc->remote_app);
			break;

		case MapNotify:
			status = xf_event_MapNotify(xfc, event, xfc->remote_app);
			break;

		case UnmapNotify:
			status = xf_event_UnmapNotify(xfc, event, xfc->remote_app);
			break;

		case ReparentNotify:
			break;

		case MappingNotify:
			status = xf_event_MappingNotify(xfc, event, xfc->remote_app);
			break;

		case ClientMessage:
			status = xf_event_ClientMessage(xfc, event, xfc->remote_app);
			break;

		case PropertyNotify:
			status = xf_event_PropertyNotify(xfc, event, xfc->remote_app);
			break;
	}

	if (!xfc->remote_app)
	{
		xf_cliprdr_handle_xevent(xfc, event);
	}

	xf_input_handle_event(xfc, event);
	XSync(xfc->display, FALSE);
	return status;
}