xf_event.c

 
#include <freerdp/config.h>
 
#include <X11/Xlib.h>
#include <X11/Xutil.h>
 
#include <string.h>
#include <math.h>
 
#include <winpr/assert.h>
#include <winpr/path.h>
 
#include <freerdp/log.h>
#include <freerdp/locale/keyboard.h>
 
#include "xf_rail.h"
#include "xf_window.h"
#include "xf_cliprdr.h"
#include "xf_disp.h"
#include "xf_input.h"
#include "xf_gfx.h"
#include "xf_graphics.h"
#include "xf_utils.h"
 
#include "xf_event.h"
 
#define TAG CLIENT_TAG("x11")
 
#define CLAMP_COORDINATES(x, y) \
  do                          \
  {                           \
    if ((x) < 0)            \
      (x) = 0;            \
    if ((y) < 0)            \
      (y) = 0;            \
  } while (0)
 
const char* x11_event_string(int event)
{
  switch (event)
  {
    case KeyPress:
      return "KeyPress";
 
    case KeyRelease:
      return "KeyRelease";
 
    case ButtonPress:
      return "ButtonPress";
 
    case ButtonRelease:
      return "ButtonRelease";
 
    case MotionNotify:
      return "MotionNotify";
 
    case EnterNotify:
      return "EnterNotify";
 
    case LeaveNotify:
      return "LeaveNotify";
 
    case FocusIn:
      return "FocusIn";
 
    case FocusOut:
      return "FocusOut";
 
    case KeymapNotify:
      return "KeymapNotify";
 
    case Expose:
      return "Expose";
 
    case GraphicsExpose:
      return "GraphicsExpose";
 
    case NoExpose:
      return "NoExpose";
 
    case VisibilityNotify:
      return "VisibilityNotify";
 
    case CreateNotify:
      return "CreateNotify";
 
    case DestroyNotify:
      return "DestroyNotify";
 
    case UnmapNotify:
      return "UnmapNotify";
 
    case MapNotify:
      return "MapNotify";
 
    case MapRequest:
      return "MapRequest";
 
    case ReparentNotify:
      return "ReparentNotify";
 
    case ConfigureNotify:
      return "ConfigureNotify";
 
    case ConfigureRequest:
      return "ConfigureRequest";
 
    case GravityNotify:
      return "GravityNotify";
 
    case ResizeRequest:
      return "ResizeRequest";
 
    case CirculateNotify:
      return "CirculateNotify";
 
    case CirculateRequest:
      return "CirculateRequest";
 
    case PropertyNotify:
      return "PropertyNotify";
 
    case SelectionClear:
      return "SelectionClear";
 
    case SelectionRequest:
      return "SelectionRequest";
 
    case SelectionNotify:
      return "SelectionNotify";
 
    case ColormapNotify:
      return "ColormapNotify";
 
    case ClientMessage:
      return "ClientMessage";
 
    case MappingNotify:
      return "MappingNotify";
 
    case GenericEvent:
      return "GenericEvent";
 
    default:
      return "UNKNOWN";
  }
}
 
#ifdef WITH_DEBUG_X11
#define DEBUG_X11(...) WLog_DBG(TAG, __VA_ARGS__)
#else
#define DEBUG_X11(...) \
  do                 \
  {                  \
  } while (0)
#endif
 
static BOOL xf_action_script_append(xfContext* xfc, const char* buffer, size_t size, void* user,
                                    const char* what, const char* arg)
{
  WINPR_ASSERT(xfc);
  WINPR_UNUSED(what);
  WINPR_UNUSED(arg);
 
  if (buffer || (size == 0))
    return TRUE;
 
  if (!ArrayList_Append(xfc->xevents, buffer))
  {
    ArrayList_Clear(xfc->xevents);
    return FALSE;
  }
  return TRUE;
}
 
BOOL xf_event_action_script_init(xfContext* xfc)
{
  wObject* obj = NULL;
  const rdpSettings* settings = NULL;
 
  WINPR_ASSERT(xfc);
 
  settings = xfc->common.context.settings;
  WINPR_ASSERT(settings);
 
  xfc->xevents = ArrayList_New(TRUE);
 
  if (!xfc->xevents)
    return FALSE;
 
  obj = ArrayList_Object(xfc->xevents);
  WINPR_ASSERT(obj);
  obj->fnObjectNew = winpr_ObjectStringClone;
  obj->fnObjectFree = winpr_ObjectStringFree;
 
  if (!run_action_script(xfc, "xevent", NULL, xf_action_script_append, NULL))
    return FALSE;
 
  return TRUE;
}
 
void xf_event_action_script_free(xfContext* xfc)
{
  if (xfc->xevents)
  {
    ArrayList_Free(xfc->xevents);
    xfc->xevents = NULL;
  }
}
 
static BOOL action_script_run(xfContext* xfc, const char* buffer, size_t size, void* user,
                              const char* what, const char* arg)
{
  WINPR_UNUSED(xfc);
  WINPR_UNUSED(what);
  WINPR_UNUSED(arg);
  WINPR_ASSERT(user);
  int* pstatus = user;
 
  if (size == 0)
  {
    WLog_WARN(TAG, "ActionScript xevent: script did not return data");
    return FALSE;
  }
 
  if (winpr_PathFileExists(buffer))
  {
    char* cmd = NULL;
    size_t cmdlen = 0;
    winpr_asprintf(&cmd, &cmdlen, "%s %s %s", buffer, what, arg);
    if (!cmd)
      return FALSE;
 
    FILE* fp = popen(cmd, "w");
    free(cmd);
    if (!fp)
    {
      WLog_ERR(TAG, "Failed to execute '%s'", buffer);
      return FALSE;
    }
 
    *pstatus = pclose(fp);
    if (*pstatus < 0)
    {
      WLog_ERR(TAG, "Command '%s' returned %d", buffer, *pstatus);
      return FALSE;
    }
  }
  else
  {
    WLog_WARN(TAG, "ActionScript xevent: No such file '%s'", buffer);
    return FALSE;
  }
 
  return TRUE;
}
 
static BOOL xf_event_execute_action_script(xfContext* xfc, const XEvent* event)
{
  size_t count = 0;
  char* name = NULL;
  BOOL match = FALSE;
  const char* xeventName = NULL;
 
  if (!xfc->actionScriptExists || !xfc->xevents || !xfc->window)
    return FALSE;
 
  if (event->type > LASTEvent)
    return FALSE;
 
  xeventName = x11_event_string(event->type);
  count = ArrayList_Count(xfc->xevents);
 
  for (size_t index = 0; index < count; index++)
  {
    name = (char*)ArrayList_GetItem(xfc->xevents, index);
 
    if (_stricmp(name, xeventName) == 0)
    {
      match = TRUE;
      break;
    }
  }
 
  if (!match)
    return FALSE;
 
  char command[2048] = { 0 };
  char arg[2048] = { 0 };
  (void)_snprintf(command, sizeof(command), "xevent %s", xeventName);
  (void)_snprintf(arg, sizeof(arg), "%lu", (unsigned long)xfc->window->handle);
  if (!run_action_script(xfc, command, arg, action_script_run, NULL))
    return FALSE;
  return TRUE;
}
 
void xf_adjust_coordinates_to_screen(xfContext* xfc, UINT32* x, UINT32* y)
{
  if (!xfc || !xfc->common.context.settings || !y || !x)
    return;
 
  rdpSettings* settings = xfc->common.context.settings;
  INT64 tx = *x;
  INT64 ty = *y;
  if (!xfc->remote_app)
  {
#ifdef WITH_XRENDER
 
    if (xf_picture_transform_required(xfc))
    {
      const double dw = freerdp_settings_get_uint32(settings, FreeRDP_DesktopWidth);
      const double dh = freerdp_settings_get_uint32(settings, FreeRDP_DesktopHeight);
      double xScalingFactor = xfc->scaledWidth / dw;
      double yScalingFactor = xfc->scaledHeight / dh;
      tx = (INT64)lround((1.0 * (*x) + xfc->offset_x) * xScalingFactor);
      ty = (INT64)lround((1.0 * (*y) + xfc->offset_y) * yScalingFactor);
    }
 
#endif
  }
 
  CLAMP_COORDINATES(tx, ty);
  *x = (UINT32)tx;
  *y = (UINT32)ty;
}
 
void xf_event_adjust_coordinates(xfContext* xfc, int* x, int* y)
{
  if (!xfc || !xfc->common.context.settings || !y || !x)
    return;
 
  if (!xfc->remote_app)
  {
#ifdef WITH_XRENDER
    rdpSettings* settings = xfc->common.context.settings;
    if (xf_picture_transform_required(xfc))
    {
      double xScalingFactor = freerdp_settings_get_uint32(settings, FreeRDP_DesktopWidth) /
                              (double)xfc->scaledWidth;
      double yScalingFactor = freerdp_settings_get_uint32(settings, FreeRDP_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, const XExposeEvent* event, BOOL app)
{
  int x = 0;
  int y = 0;
  int w = 0;
  int h = 0;
  rdpSettings* settings = NULL;
 
  WINPR_ASSERT(xfc);
  WINPR_ASSERT(event);
 
  settings = xfc->common.context.settings;
  WINPR_ASSERT(settings);
 
  if (!app && (freerdp_settings_get_bool(settings, FreeRDP_SmartSizing) ||
               freerdp_settings_get_bool(settings, FreeRDP_MultiTouchGestures)))
  {
    x = 0;
    y = 0;
    w = WINPR_ASSERTING_INT_CAST(int,
                                 freerdp_settings_get_uint32(settings, FreeRDP_DesktopWidth));
    h = WINPR_ASSERTING_INT_CAST(int,
                                 freerdp_settings_get_uint32(settings, FreeRDP_DesktopHeight));
  }
  else
  {
    x = event->x;
    y = event->y;
    w = event->width;
    h = event->height;
  }
 
  if (!app)
  {
    if (xfc->common.context.gdi->gfx)
    {
      xf_OutputExpose(
          xfc, WINPR_ASSERTING_INT_CAST(uint32_t, x), WINPR_ASSERTING_INT_CAST(uint32_t, y),
          WINPR_ASSERTING_INT_CAST(uint32_t, w), WINPR_ASSERTING_INT_CAST(uint32_t, h));
      return TRUE;
    }
    xf_draw_screen(xfc, x, y, w, h);
  }
  else
  {
    xfAppWindow* appWindow = xf_AppWindowFromX11Window(xfc, event->window);
    if (appWindow)
    {
      xf_UpdateWindowArea(xfc, appWindow, x, y, w, h);
    }
  }
 
  return TRUE;
}
 
static BOOL xf_event_VisibilityNotify(xfContext* xfc, const XVisibilityEvent* event, BOOL app)
{
  WINPR_UNUSED(app);
  xfc->unobscured = event->state == VisibilityUnobscured;
  return TRUE;
}
 
BOOL xf_generic_MotionNotify(xfContext* xfc, int x, int y, int state, Window window, BOOL app)
{
  Window childWindow = None;
 
  WINPR_ASSERT(xfc);
  WINPR_ASSERT(xfc->common.context.settings);
 
  if (!freerdp_settings_get_bool(xfc->common.context.settings, FreeRDP_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);
  freerdp_client_send_button_event(&xfc->common, FALSE, PTR_FLAGS_MOVE, x, y);
 
  if (xfc->fullscreen && !app)
  {
    XSetInputFocus(xfc->display, xfc->window->handle, RevertToPointerRoot, CurrentTime);
  }
 
  return TRUE;
}
 
BOOL xf_generic_RawMotionNotify(xfContext* xfc, int x, int y, Window window, BOOL app)
{
  WINPR_ASSERT(xfc);
 
  if (app)
  {
    WLog_ERR(TAG, "Relative mouse input is not supported with remoate app mode!");
    return FALSE;
  }
 
  return freerdp_client_send_button_event(&xfc->common, TRUE, PTR_FLAGS_MOVE, x, y);
}
 
static BOOL xf_event_MotionNotify(xfContext* xfc, const XMotionEvent* event, BOOL app)
{
  WINPR_ASSERT(xfc);
 
  if (xfc->window)
    xf_floatbar_set_root_y(xfc->window->floatbar, event->y);
 
  if (xfc->xi_event ||
      (xfc->common.mouse_grabbed && freerdp_client_use_relative_mouse_events(&xfc->common)))
    return TRUE;
 
  return xf_generic_MotionNotify(xfc, event->x, event->y,
                                 WINPR_ASSERTING_INT_CAST(int, event->state), event->window, app);
}
 
BOOL xf_generic_ButtonEvent(xfContext* xfc, int x, int y, int button, Window window, BOOL app,
                            BOOL down)
{
  UINT16 flags = 0;
  Window childWindow = None;
 
  WINPR_ASSERT(xfc);
  if (button < 0)
    return FALSE;
 
  for (size_t i = 0; i < ARRAYSIZE(xfc->button_map); i++)
  {
    const button_map* cur = &xfc->button_map[i];
 
    if (cur->button == (UINT32)button)
    {
      flags = cur->flags;
      break;
    }
  }
 
  if (flags != 0)
  {
    if (flags & (PTR_FLAGS_WHEEL | PTR_FLAGS_HWHEEL))
    {
      if (down)
        freerdp_client_send_wheel_event(&xfc->common, flags);
    }
    else
    {
      BOOL extended = FALSE;
 
      if (flags & (PTR_XFLAGS_BUTTON1 | PTR_XFLAGS_BUTTON2))
      {
        extended = TRUE;
 
        if (down)
          flags |= PTR_XFLAGS_DOWN;
      }
      else if (flags & (PTR_FLAGS_BUTTON1 | PTR_FLAGS_BUTTON2 | PTR_FLAGS_BUTTON3))
      {
        if (down)
          flags |= PTR_FLAGS_DOWN;
      }
 
      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)
        freerdp_client_send_extended_button_event(&xfc->common, FALSE, flags, x, y);
      else
        freerdp_client_send_button_event(&xfc->common, FALSE, flags, x, y);
    }
  }
 
  return TRUE;
}
 
static BOOL xf_grab_mouse(xfContext* xfc)
{
  WINPR_ASSERT(xfc);
 
  if (!xfc->window)
    return FALSE;
 
  if (freerdp_settings_get_bool(xfc->common.context.settings, FreeRDP_GrabMouse))
  {
    XGrabPointer(xfc->display, xfc->window->handle, False,
                 ButtonPressMask | ButtonReleaseMask | PointerMotionMask | FocusChangeMask |
                     EnterWindowMask | LeaveWindowMask,
                 GrabModeAsync, GrabModeAsync, xfc->window->handle, None, CurrentTime);
    xfc->common.mouse_grabbed = TRUE;
  }
  return TRUE;
}
 
static BOOL xf_grab_kbd(xfContext* xfc)
{
  WINPR_ASSERT(xfc);
 
  if (!xfc->window)
    return FALSE;
 
  XGrabKeyboard(xfc->display, xfc->window->handle, TRUE, GrabModeAsync, GrabModeAsync,
                CurrentTime);
  return TRUE;
}
 
static BOOL xf_event_ButtonPress(xfContext* xfc, const XButtonEvent* event, BOOL app)
{
  xf_grab_mouse(xfc);
 
  if (xfc->xi_event ||
      (xfc->common.mouse_grabbed && freerdp_client_use_relative_mouse_events(&xfc->common)))
    return TRUE;
  return xf_generic_ButtonEvent(xfc, event->x, event->y,
                                WINPR_ASSERTING_INT_CAST(int, event->button), event->window, app,
                                TRUE);
}
 
static BOOL xf_event_ButtonRelease(xfContext* xfc, const XButtonEvent* event, BOOL app)
{
  xf_grab_mouse(xfc);
 
  if (xfc->xi_event ||
      (xfc->common.mouse_grabbed && freerdp_client_use_relative_mouse_events(&xfc->common)))
    return TRUE;
  return xf_generic_ButtonEvent(xfc, event->x, event->y,
                                WINPR_ASSERTING_INT_CAST(int, event->button), event->window, app,
                                FALSE);
}
 
static BOOL xf_event_KeyPress(xfContext* xfc, const XKeyEvent* event, BOOL app)
{
  KeySym keysym = 0;
  char str[256] = { 0 };
  union
  {
    const XKeyEvent* cev;
    XKeyEvent* ev;
  } cnv;
  cnv.cev = event;
  WINPR_UNUSED(app);
  XLookupString(cnv.ev, str, sizeof(str), &keysym, NULL);
  xf_keyboard_key_press(xfc, event, keysym);
  return TRUE;
}
 
static BOOL xf_event_KeyRelease(xfContext* xfc, const XKeyEvent* event, BOOL app)
{
  KeySym keysym = 0;
  char str[256] = { 0 };
  union
  {
    const XKeyEvent* cev;
    XKeyEvent* ev;
  } cnv;
  cnv.cev = event;
 
  WINPR_UNUSED(app);
  XLookupString(cnv.ev, str, sizeof(str), &keysym, NULL);
  xf_keyboard_key_release(xfc, event, keysym);
  return TRUE;
}
 
/* Release a key, but ignore the event in case of autorepeat.
 */
static BOOL xf_event_KeyReleaseOrIgnore(xfContext* xfc, const XKeyEvent* event, BOOL app)
{
  WINPR_ASSERT(xfc);
  WINPR_ASSERT(event);
 
  if ((event->type == KeyRelease) && XEventsQueued(xfc->display, QueuedAfterReading))
  {
    XEvent nev = { 0 };
    XPeekEvent(xfc->display, &nev);
 
    if ((nev.type == KeyPress) && (nev.xkey.time == event->time) &&
        (nev.xkey.keycode == event->keycode))
    {
      /* Key wasn’t actually released */
      return TRUE;
    }
  }
 
  return xf_event_KeyRelease(xfc, event, app);
}
 
static BOOL xf_event_FocusIn(xfContext* xfc, const XFocusInEvent* event, BOOL app)
{
  if (event->mode == NotifyGrab)
    return TRUE;
 
  xfc->focused = TRUE;
 
  if (xfc->mouse_active && !app)
  {
    xf_grab_mouse(xfc);
    if (!xf_grab_kbd(xfc))
      return FALSE;
  }
 
  /* Release all keys, should already be done at FocusOut but might be missed
   * if the WM decided to use an alternate event order */
  if (!app)
    xf_keyboard_release_all_keypress(xfc);
  else
    xf_rail_send_activate(xfc, event->window, TRUE);
 
  xf_pointer_update_scale(xfc);
 
  if (app)
  {
    xfAppWindow* appWindow = xf_AppWindowFromX11Window(xfc, event->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, const XFocusOutEvent* event, BOOL app)
{
  if (event->mode == NotifyUngrab)
    return TRUE;
 
  xfc->focused = FALSE;
 
  if (event->mode == NotifyWhileGrabbed)
    XUngrabKeyboard(xfc->display, CurrentTime);
 
  xf_keyboard_release_all_keypress(xfc);
  if (app)
    xf_rail_send_activate(xfc, event->window, FALSE);
 
  return TRUE;
}
 
static BOOL xf_event_MappingNotify(xfContext* xfc, const XMappingEvent* event, BOOL app)
{
  WINPR_UNUSED(app);
 
  if (event->request == MappingModifier)
    return xf_keyboard_update_modifier_map(xfc);
 
  return TRUE;
}
 
static BOOL xf_event_ClientMessage(xfContext* xfc, const XClientMessageEvent* event, BOOL app)
{
  if ((event->message_type == xfc->WM_PROTOCOLS) &&
      ((Atom)event->data.l[0] == xfc->WM_DELETE_WINDOW))
  {
    if (app)
    {
      xfAppWindow* appWindow = xf_AppWindowFromX11Window(xfc, event->window);
 
      if (appWindow)
        return 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, const XEnterWindowEvent* event, BOOL app)
{
  if (!app)
  {
    if (!xfc->window)
      return FALSE;
 
    xfc->mouse_active = TRUE;
 
    if (xfc->fullscreen)
      XSetInputFocus(xfc->display, xfc->window->handle, RevertToPointerRoot, CurrentTime);
 
    if (xfc->focused)
      xf_grab_kbd(xfc);
  }
  else
  {
    xfAppWindow* appWindow = xf_AppWindowFromX11Window(xfc, event->window);
 
    /* keep track of which window has focus so that we can apply pointer updates */
    xfc->appWindow = appWindow;
  }
 
  return TRUE;
}
 
static BOOL xf_event_LeaveNotify(xfContext* xfc, const XLeaveWindowEvent* event, BOOL app)
{
  if (event->mode == NotifyGrab || event->mode == NotifyUngrab)
    return TRUE;
  if (!app)
  {
    xfc->mouse_active = FALSE;
    XUngrabKeyboard(xfc->display, CurrentTime);
  }
  else
  {
    xfAppWindow* appWindow = xf_AppWindowFromX11Window(xfc, event->window);
 
    /* keep track of which window has focus so that we can apply pointer updates */
    if (xfc->appWindow == appWindow)
      xfc->appWindow = NULL;
  }
  return TRUE;
}
 
static BOOL xf_event_ConfigureNotify(xfContext* xfc, const XConfigureEvent* event, BOOL app)
{
  Window childWindow = None;
  xfAppWindow* appWindow = NULL;
 
  WINPR_ASSERT(xfc);
  WINPR_ASSERT(event);
 
  const rdpSettings* settings = xfc->common.context.settings;
  WINPR_ASSERT(settings);
 
  WLog_DBG(TAG, "x=%" PRId32 ", y=%" PRId32 ", w=%" PRId32 ", h=%" PRId32, event->x, event->y,
           event->width, event->height);
 
  if (!app)
  {
    if (!xfc->window)
      return FALSE;
 
    if (xfc->window->left != event->x)
      xfc->window->left = event->x;
 
    if (xfc->window->top != event->y)
      xfc->window->top = event->y;
 
    if (xfc->window->width != event->width || xfc->window->height != event->height)
    {
      xfc->window->width = event->width;
      xfc->window->height = event->height;
#ifdef WITH_XRENDER
      xfc->offset_x = 0;
      xfc->offset_y = 0;
 
      if (freerdp_settings_get_bool(settings, FreeRDP_SmartSizing) ||
          freerdp_settings_get_bool(settings, FreeRDP_MultiTouchGestures))
      {
        xfc->scaledWidth = xfc->window->width;
        xfc->scaledHeight = xfc->window->height;
        xf_draw_screen(
            xfc, 0, 0,
            WINPR_ASSERTING_INT_CAST(
                int32_t, freerdp_settings_get_uint32(settings, FreeRDP_DesktopWidth)),
            WINPR_ASSERTING_INT_CAST(
                int32_t, freerdp_settings_get_uint32(settings, FreeRDP_DesktopHeight)));
      }
      else
      {
        xfc->scaledWidth = WINPR_ASSERTING_INT_CAST(
            int, freerdp_settings_get_uint32(settings, FreeRDP_DesktopWidth));
        xfc->scaledHeight = WINPR_ASSERTING_INT_CAST(
            int, freerdp_settings_get_uint32(settings, FreeRDP_DesktopHeight));
      }
 
#endif
    }
 
    if (freerdp_settings_get_bool(settings, FreeRDP_DynamicResolutionUpdate))
    {
      int alignedWidth = 0;
      int alignedHeight = 0;
      alignedWidth = (xfc->window->width / 2) * 2;
      alignedHeight = (xfc->window->height / 2) * 2;
      /* ask the server to resize using the display channel */
      xf_disp_handle_configureNotify(xfc, alignedWidth, alignedHeight);
    }
  }
  else
  {
    appWindow = xf_AppWindowFromX11Window(xfc, event->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->width;
      appWindow->height = event->height;
 
      xf_AppWindowResize(xfc, appWindow);
 
      /*
       * 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->send_event || appWindow->local_move.state == LMS_NOT_ACTIVE) &&
            !appWindow->rail_ignore_configure && xfc->focused)
          xf_rail_adjust_position(xfc, appWindow);
      }
    }
  }
  return xf_pointer_update_scale(xfc);
}
 
static BOOL xf_event_MapNotify(xfContext* xfc, const XMapEvent* event, BOOL app)
{
  WINPR_ASSERT(xfc);
  if (!app)
    gdi_send_suppress_output(xfc->common.context.gdi, FALSE);
  else
  {
    xfAppWindow* appWindow = xf_AppWindowFromX11Window(xfc, event->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, const XUnmapEvent* event, BOOL app)
{
  WINPR_ASSERT(xfc);
  WINPR_ASSERT(event);
 
  if (!app)
    xf_keyboard_release_all_keypress(xfc);
 
  if (!app)
    gdi_send_suppress_output(xfc->common.context.gdi, TRUE);
  else
  {
    xfAppWindow* appWindow = xf_AppWindowFromX11Window(xfc, event->window);
 
    if (appWindow)
      appWindow->is_mapped = FALSE;
  }
 
  return TRUE;
}
 
static BOOL xf_event_PropertyNotify(xfContext* xfc, const XPropertyEvent* event, BOOL app)
{
  WINPR_ASSERT(xfc);
  WINPR_ASSERT(event);
 
  /*
   * 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 (((event->atom == xfc->_NET_WM_STATE) && (event->state != PropertyDelete)) ||
      ((event->atom == xfc->WM_STATE) && (event->state != PropertyDelete)))
  {
    BOOL status = FALSE;
    BOOL minimized = FALSE;
    BOOL minimizedChanged = FALSE;
    unsigned long nitems = 0;
    unsigned long bytes = 0;
    unsigned char* prop = NULL;
    xfAppWindow* appWindow = NULL;
 
    if (app)
    {
      appWindow = xf_AppWindowFromX11Window(xfc, event->window);
 
      if (!appWindow)
        return TRUE;
    }
 
    if (event->atom == xfc->_NET_WM_STATE)
    {
      status = xf_GetWindowProperty(xfc, event->window, xfc->_NET_WM_STATE, 12, &nitems,
                                    &bytes, &prop);
 
      if (status)
      {
        if (appWindow)
        {
          appWindow->maxVert = FALSE;
          appWindow->maxHorz = FALSE;
        }
        for (unsigned long i = 0; i < nitems; i++)
        {
          if ((Atom)((UINT16**)prop)[i] ==
              Logging_XInternAtom(xfc->log, xfc->display, "_NET_WM_STATE_MAXIMIZED_VERT",
                                  False))
          {
            if (appWindow)
              appWindow->maxVert = TRUE;
          }
 
          if ((Atom)((UINT16**)prop)[i] ==
              Logging_XInternAtom(xfc->log, xfc->display, "_NET_WM_STATE_MAXIMIZED_HORZ",
                                  False))
          {
            if (appWindow)
              appWindow->maxHorz = TRUE;
          }
        }
 
        XFree(prop);
      }
    }
 
    if (event->atom == xfc->WM_STATE)
    {
      status =
          xf_GetWindowProperty(xfc, event->window, xfc->WM_STATE, 1, &nitems, &bytes, &prop);
 
      if (status)
      {
        /* If the window is in the iconic state */
        if (((UINT32)*prop == 3) && !IsGnome())
        {
          minimized = TRUE;
          if (appWindow)
            appWindow->minimized = TRUE;
        }
        else
        {
          minimized = FALSE;
          if (appWindow)
            appWindow->minimized = FALSE;
        }
 
        minimizedChanged = TRUE;
        XFree(prop);
      }
    }
 
    if (app)
    {
      WINPR_ASSERT(appWindow);
      if (appWindow->maxVert && appWindow->maxHorz && !appWindow->minimized)
      {
        if (appWindow->rail_state != WINDOW_SHOW_MAXIMIZED)
        {
          appWindow->rail_state = WINDOW_SHOW_MAXIMIZED;
          return xf_rail_send_client_system_command(xfc, appWindow->windowId,
                                                    SC_MAXIMIZE);
        }
      }
      else if (appWindow->minimized)
      {
        if (appWindow->rail_state != WINDOW_SHOW_MINIMIZED)
        {
          appWindow->rail_state = WINDOW_SHOW_MINIMIZED;
          return xf_rail_send_client_system_command(xfc, appWindow->windowId,
                                                    SC_MINIMIZE);
        }
      }
      else
      {
        if (appWindow->rail_state != WINDOW_SHOW && appWindow->rail_state != WINDOW_HIDE)
        {
          appWindow->rail_state = WINDOW_SHOW;
          return xf_rail_send_client_system_command(xfc, appWindow->windowId, SC_RESTORE);
        }
      }
    }
    else if (minimizedChanged)
      gdi_send_suppress_output(xfc->common.context.gdi, minimized);
  }
 
  return TRUE;
}
 
static BOOL xf_event_suppress_events(xfContext* xfc, xfAppWindow* appWindow, const 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;
    default:
      break;
  }
 
  return FALSE;
}
 
BOOL xf_event_process(freerdp* instance, const XEvent* event)
{
  BOOL status = TRUE;
 
  WINPR_ASSERT(instance);
  WINPR_ASSERT(event);
 
  xfContext* xfc = (xfContext*)instance->context;
  WINPR_ASSERT(xfc);
 
  rdpSettings* settings = xfc->common.context.settings;
  WINPR_ASSERT(settings);
 
  if (xfc->remote_app)
  {
    xfAppWindow* 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;
    }
  }
 
  if (xfc->window)
  {
    xfFloatbar* floatbar = xfc->window->floatbar;
    if (xf_floatbar_check_event(floatbar, event))
    {
      xf_floatbar_event_process(floatbar, event);
      return TRUE;
    }
 
    if (xf_floatbar_is_locked(floatbar))
      return TRUE;
  }
 
  xf_event_execute_action_script(xfc, event);
 
  if (event->type != MotionNotify)
  {
    DEBUG_X11("%s Event(%d): wnd=0x%08lX", x11_event_string(event->type), event->type,
              (unsigned long)event->xany.window);
  }
 
  switch (event->type)
  {
    case Expose:
      status = xf_event_Expose(xfc, &event->xexpose, xfc->remote_app);
      break;
 
    case VisibilityNotify:
      status = xf_event_VisibilityNotify(xfc, &event->xvisibility, xfc->remote_app);
      break;
 
    case MotionNotify:
      status = xf_event_MotionNotify(xfc, &event->xmotion, xfc->remote_app);
      break;
 
    case ButtonPress:
      status = xf_event_ButtonPress(xfc, &event->xbutton, xfc->remote_app);
      break;
 
    case ButtonRelease:
      status = xf_event_ButtonRelease(xfc, &event->xbutton, xfc->remote_app);
      break;
 
    case KeyPress:
      status = xf_event_KeyPress(xfc, &event->xkey, xfc->remote_app);
      break;
 
    case KeyRelease:
      status = xf_event_KeyReleaseOrIgnore(xfc, &event->xkey, xfc->remote_app);
      break;
 
    case FocusIn:
      status = xf_event_FocusIn(xfc, &event->xfocus, xfc->remote_app);
      break;
 
    case FocusOut:
      status = xf_event_FocusOut(xfc, &event->xfocus, xfc->remote_app);
      break;
 
    case EnterNotify:
      status = xf_event_EnterNotify(xfc, &event->xcrossing, xfc->remote_app);
      break;
 
    case LeaveNotify:
      status = xf_event_LeaveNotify(xfc, &event->xcrossing, xfc->remote_app);
      break;
 
    case NoExpose:
      break;
 
    case GraphicsExpose:
      break;
 
    case ConfigureNotify:
      status = xf_event_ConfigureNotify(xfc, &event->xconfigure, xfc->remote_app);
      break;
 
    case MapNotify:
      status = xf_event_MapNotify(xfc, &event->xmap, xfc->remote_app);
      break;
 
    case UnmapNotify:
      status = xf_event_UnmapNotify(xfc, &event->xunmap, xfc->remote_app);
      break;
 
    case ReparentNotify:
      break;
 
    case MappingNotify:
      status = xf_event_MappingNotify(xfc, &event->xmapping, xfc->remote_app);
      break;
 
    case ClientMessage:
      status = xf_event_ClientMessage(xfc, &event->xclient, xfc->remote_app);
      break;
 
    case PropertyNotify:
      status = xf_event_PropertyNotify(xfc, &event->xproperty, xfc->remote_app);
      break;
 
    default:
      if (freerdp_settings_get_bool(settings, FreeRDP_SupportDisplayControl))
        xf_disp_handle_xevent(xfc, event);
 
      break;
  }
 
  xfWindow* window = xfc->window;
  xfFloatbar* floatbar = NULL;
  if (window)
    floatbar = window->floatbar;
 
  xf_cliprdr_handle_xevent(xfc, event);
  if (!xf_floatbar_check_event(floatbar, event) && !xf_floatbar_is_locked(floatbar))
    xf_input_handle_event(xfc, event);
 
  XSync(xfc->display, FALSE);
  return status;
}
 
BOOL xf_generic_RawButtonEvent(xfContext* xfc, int button, BOOL app, BOOL down)
{
  UINT16 flags = 0;
 
  if (app || (button < 0))
    return FALSE;
 
  for (size_t i = 0; i < ARRAYSIZE(xfc->button_map); i++)
  {
    const button_map* cur = &xfc->button_map[i];
 
    if (cur->button == (UINT32)button)
    {
      flags = cur->flags;
      break;
    }
  }
 
  if (flags != 0)
  {
    if (flags & (PTR_FLAGS_WHEEL | PTR_FLAGS_HWHEEL))
    {
      if (down)
        freerdp_client_send_wheel_event(&xfc->common, flags);
    }
    else
    {
      BOOL extended = FALSE;
 
      if (flags & (PTR_XFLAGS_BUTTON1 | PTR_XFLAGS_BUTTON2))
      {
        extended = TRUE;
 
        if (down)
          flags |= PTR_XFLAGS_DOWN;
      }
      else if (flags & (PTR_FLAGS_BUTTON1 | PTR_FLAGS_BUTTON2 | PTR_FLAGS_BUTTON3))
      {
        if (down)
          flags |= PTR_FLAGS_DOWN;
      }
 
      if (extended)
        freerdp_client_send_extended_button_event(&xfc->common, TRUE, flags, 0, 0);
      else
        freerdp_client_send_button_event(&xfc->common, TRUE, flags, 0, 0);
    }
  }
 
  return TRUE;
}