event.c 51.5 KB
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/*
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 * X11 event driver
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 *
 * Copyright 1993 Alexandre Julliard
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 *	     1999 Noel Borthwick
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 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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 */

#include "config.h"

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#ifdef HAVE_POLL_H
#include <poll.h>
#endif
#ifdef HAVE_SYS_POLL_H
#include <sys/poll.h>
#endif
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#include <X11/Xatom.h>
#include <X11/keysym.h>
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#include <X11/Xlib.h>
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#include <X11/Xresource.h>
#include <X11/Xutil.h>
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#ifdef HAVE_X11_EXTENSIONS_XINPUT2_H
#include <X11/extensions/XInput2.h>
#endif
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#include <assert.h>
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#include <stdarg.h>
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#include <string.h>
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#define NONAMELESSUNION
#define NONAMELESSSTRUCT
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#include "windef.h"
#include "winbase.h"
#include "winuser.h"
#include "wingdi.h"
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#include "x11drv.h"
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/* avoid conflict with field names in included win32 headers */
#undef Status
#include "shlobj.h"  /* DROPFILES */
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#include "shellapi.h"
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#include "wine/server.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(event);
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extern BOOL ximInComposeMode;

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#define DndNotDnd       -1    /* OffiX drag&drop */
#define DndUnknown      0
#define DndRawData      1
#define DndFile         2
#define DndFiles        3
#define DndText         4
#define DndDir          5
#define DndLink         6
#define DndExe          7

#define DndEND          8

#define DndURL          128   /* KDE drag&drop */

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#define XEMBED_EMBEDDED_NOTIFY        0
#define XEMBED_WINDOW_ACTIVATE        1
#define XEMBED_WINDOW_DEACTIVATE      2
#define XEMBED_REQUEST_FOCUS          3
#define XEMBED_FOCUS_IN               4
#define XEMBED_FOCUS_OUT              5
#define XEMBED_FOCUS_NEXT             6
#define XEMBED_FOCUS_PREV             7
#define XEMBED_MODALITY_ON            10
#define XEMBED_MODALITY_OFF           11
#define XEMBED_REGISTER_ACCELERATOR   12
#define XEMBED_UNREGISTER_ACCELERATOR 13
#define XEMBED_ACTIVATE_ACCELERATOR   14

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Bool (*pXGetEventData)( Display *display, XEvent /*XGenericEventCookie*/ *event ) = NULL;
void (*pXFreeEventData)( Display *display, XEvent /*XGenericEventCookie*/ *event ) = NULL;

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  /* Event handlers */
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static void X11DRV_FocusIn( HWND hwnd, XEvent *event );
static void X11DRV_FocusOut( HWND hwnd, XEvent *event );
static void X11DRV_Expose( HWND hwnd, XEvent *event );
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static void X11DRV_MapNotify( HWND hwnd, XEvent *event );
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static void X11DRV_UnmapNotify( HWND hwnd, XEvent *event );
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static void X11DRV_ReparentNotify( HWND hwnd, XEvent *event );
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static void X11DRV_ConfigureNotify( HWND hwnd, XEvent *event );
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static void X11DRV_PropertyNotify( HWND hwnd, XEvent *event );
static void X11DRV_ClientMessage( HWND hwnd, XEvent *event );
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static void X11DRV_GravityNotify( HWND hwnd, XEvent *event );
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#define MAX_EVENT_HANDLERS 128
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static x11drv_event_handler handlers[MAX_EVENT_HANDLERS] =
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{
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    NULL,                     /*  0 reserved */
    NULL,                     /*  1 reserved */
    X11DRV_KeyEvent,          /*  2 KeyPress */
    X11DRV_KeyEvent,          /*  3 KeyRelease */
    X11DRV_ButtonPress,       /*  4 ButtonPress */
    X11DRV_ButtonRelease,     /*  5 ButtonRelease */
    X11DRV_MotionNotify,      /*  6 MotionNotify */
    X11DRV_EnterNotify,       /*  7 EnterNotify */
    NULL,                     /*  8 LeaveNotify */
    X11DRV_FocusIn,           /*  9 FocusIn */
    X11DRV_FocusOut,          /* 10 FocusOut */
    X11DRV_KeymapNotify,      /* 11 KeymapNotify */
    X11DRV_Expose,            /* 12 Expose */
    NULL,                     /* 13 GraphicsExpose */
    NULL,                     /* 14 NoExpose */
    NULL,                     /* 15 VisibilityNotify */
    NULL,                     /* 16 CreateNotify */
    X11DRV_DestroyNotify,     /* 17 DestroyNotify */
    X11DRV_UnmapNotify,       /* 18 UnmapNotify */
    X11DRV_MapNotify,         /* 19 MapNotify */
    NULL,                     /* 20 MapRequest */
    X11DRV_ReparentNotify,    /* 21 ReparentNotify */
    X11DRV_ConfigureNotify,   /* 22 ConfigureNotify */
    NULL,                     /* 23 ConfigureRequest */
    X11DRV_GravityNotify,     /* 24 GravityNotify */
    NULL,                     /* 25 ResizeRequest */
    NULL,                     /* 26 CirculateNotify */
    NULL,                     /* 27 CirculateRequest */
    X11DRV_PropertyNotify,    /* 28 PropertyNotify */
    X11DRV_SelectionClear,    /* 29 SelectionClear */
    X11DRV_SelectionRequest,  /* 30 SelectionRequest */
    NULL,                     /* 31 SelectionNotify */
    NULL,                     /* 32 ColormapNotify */
    X11DRV_ClientMessage,     /* 33 ClientMessage */
    X11DRV_MappingNotify,     /* 34 MappingNotify */
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    X11DRV_GenericEvent       /* 35 GenericEvent */
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};
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static const char * event_names[MAX_EVENT_HANDLERS] =
{
    NULL, NULL, "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"
};
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int xinput2_opcode = 0;

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/* return the name of an X event */
static const char *dbgstr_event( int type )
{
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    if (type < MAX_EVENT_HANDLERS && event_names[type]) return event_names[type];
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    return wine_dbg_sprintf( "Unknown event %d", type );
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}

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static inline void get_event_data( XEvent *event )
{
#if defined(GenericEvent) && defined(HAVE_XEVENT_XCOOKIE)
    if (event->xany.type != GenericEvent) return;
    if (!pXGetEventData || !pXGetEventData( event->xany.display, event )) event->xcookie.data = NULL;
#endif
}

static inline void free_event_data( XEvent *event )
{
#if defined(GenericEvent) && defined(HAVE_XEVENT_XCOOKIE)
    if (event->xany.type != GenericEvent) return;
    if (event->xcookie.data) pXFreeEventData( event->xany.display, event );
#endif
}
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/***********************************************************************
 *           X11DRV_register_event_handler
 *
 * Register a handler for a given event type.
 * If already registered, overwrite the previous handler.
 */
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void X11DRV_register_event_handler( int type, x11drv_event_handler handler, const char *name )
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{
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    assert( type < MAX_EVENT_HANDLERS );
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    assert( !handlers[type] || handlers[type] == handler );
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    handlers[type] = handler;
    event_names[type] = name;
    TRACE("registered handler %p for event %d %s\n", handler, type, debugstr_a(name) );
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}
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/***********************************************************************
 *           filter_event
 */
static Bool filter_event( Display *display, XEvent *event, char *arg )
{
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    ULONG_PTR mask = (ULONG_PTR)arg;
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    if ((mask & QS_ALLINPUT) == QS_ALLINPUT) return 1;

    switch(event->type)
    {
    case KeyPress:
    case KeyRelease:
    case KeymapNotify:
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    case MappingNotify:
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        return (mask & (QS_KEY|QS_HOTKEY)) != 0;
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    case ButtonPress:
    case ButtonRelease:
        return (mask & QS_MOUSEBUTTON) != 0;
    case MotionNotify:
    case EnterNotify:
    case LeaveNotify:
        return (mask & QS_MOUSEMOVE) != 0;
    case Expose:
        return (mask & QS_PAINT) != 0;
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    case FocusIn:
    case FocusOut:
    case MapNotify:
    case UnmapNotify:
    case ConfigureNotify:
    case PropertyNotify:
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    case ClientMessage:
        return (mask & QS_POSTMESSAGE) != 0;
    default:
        return (mask & QS_SENDMESSAGE) != 0;
    }
}


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enum event_merge_action
{
    MERGE_DISCARD,  /* discard the old event */
    MERGE_HANDLE,   /* handle the old event */
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    MERGE_KEEP,     /* keep the old event for future merging */
    MERGE_IGNORE    /* ignore the new event, keep the old one */
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};

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/***********************************************************************
 *           merge_raw_motion_events
 */
#ifdef HAVE_X11_EXTENSIONS_XINPUT2_H
static enum event_merge_action merge_raw_motion_events( XIRawEvent *prev, XIRawEvent *next )
{
    int i, j, k;
    unsigned char mask;

    if (!prev->valuators.mask_len) return MERGE_HANDLE;
    if (!next->valuators.mask_len) return MERGE_HANDLE;

    mask = prev->valuators.mask[0] | next->valuators.mask[0];
    if (mask == next->valuators.mask[0])  /* keep next */
    {
        for (i = j = k = 0; i < 8; i++)
        {
            if (XIMaskIsSet( prev->valuators.mask, i ))
                next->valuators.values[j] += prev->valuators.values[k++];
            if (XIMaskIsSet( next->valuators.mask, i )) j++;
        }
        TRACE( "merging duplicate GenericEvent\n" );
        return MERGE_DISCARD;
    }
    if (mask == prev->valuators.mask[0])  /* keep prev */
    {
        for (i = j = k = 0; i < 8; i++)
        {
            if (XIMaskIsSet( next->valuators.mask, i ))
                prev->valuators.values[j] += next->valuators.values[k++];
            if (XIMaskIsSet( prev->valuators.mask, i )) j++;
        }
        TRACE( "merging duplicate GenericEvent\n" );
        return MERGE_IGNORE;
    }
    /* can't merge events with disjoint masks */
    return MERGE_HANDLE;
}
#endif

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/***********************************************************************
 *           merge_events
 *
 * Try to merge 2 consecutive events.
 */
static enum event_merge_action merge_events( XEvent *prev, XEvent *next )
{
    switch (prev->type)
    {
    case ConfigureNotify:
        switch (next->type)
        {
        case ConfigureNotify:
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            if (prev->xany.window == next->xany.window)
            {
                TRACE( "discarding duplicate ConfigureNotify for window %lx\n", prev->xany.window );
                return MERGE_DISCARD;
            }
            break;
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        case Expose:
        case PropertyNotify:
            return MERGE_KEEP;
        }
        break;
    case MotionNotify:
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        switch (next->type)
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        {
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        case MotionNotify:
            if (prev->xany.window == next->xany.window)
            {
                TRACE( "discarding duplicate MotionNotify for window %lx\n", prev->xany.window );
                return MERGE_DISCARD;
            }
            break;
#ifdef HAVE_X11_EXTENSIONS_XINPUT2_H
        case GenericEvent:
            if (next->xcookie.extension != xinput2_opcode) break;
            if (next->xcookie.evtype != XI_RawMotion) break;
            if (x11drv_thread_data()->warp_serial) break;
            return MERGE_KEEP;
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        }
        break;
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    case GenericEvent:
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        if (prev->xcookie.extension != xinput2_opcode) break;
        if (prev->xcookie.evtype != XI_RawMotion) break;
        switch (next->type)
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        {
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        case GenericEvent:
            if (next->xcookie.extension != xinput2_opcode) break;
            if (next->xcookie.evtype != XI_RawMotion) break;
            if (x11drv_thread_data()->warp_serial) break;
            return merge_raw_motion_events( prev->xcookie.data, next->xcookie.data );
#endif
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        }
        break;
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    }
    return MERGE_HANDLE;
}


/***********************************************************************
 *           call_event_handler
 */
static inline void call_event_handler( Display *display, XEvent *event )
{
    HWND hwnd;
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    XEvent *prev;
    struct x11drv_thread_data *thread_data;
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    if (!handlers[event->type])
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    {
        TRACE( "%s for win %lx, ignoring\n", dbgstr_event( event->type ), event->xany.window );
        return;  /* no handler, ignore it */
    }

    if (XFindContext( display, event->xany.window, winContext, (char **)&hwnd ) != 0)
        hwnd = 0;  /* not for a registered window */
    if (!hwnd && event->xany.window == root_window) hwnd = GetDesktopWindow();

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    TRACE( "%lu %s for hwnd/window %p/%lx\n",
           event->xany.serial, dbgstr_event( event->type ), hwnd, event->xany.window );
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    wine_tsx11_unlock();
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    thread_data = x11drv_thread_data();
    prev = thread_data->current_event;
    thread_data->current_event = event;
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    handlers[event->type]( hwnd, event );
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    thread_data->current_event = prev;
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    wine_tsx11_lock();
}


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/***********************************************************************
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 *           process_events
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 */
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static int process_events( Display *display, Bool (*filter)(Display*, XEvent*,XPointer), ULONG_PTR arg )
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{
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    XEvent event, prev_event;
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    int count = 0;
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    enum event_merge_action action = MERGE_DISCARD;
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    prev_event.type = 0;
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    wine_tsx11_lock();
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    while (XCheckIfEvent( display, &event, filter, (char *)arg ))
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    {
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        count++;
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        if (XFilterEvent( &event, None ))
        {
            /*
             * SCIM on linux filters key events strangely. It does not filter the
             * KeyPress events for these keys however it does filter the
             * KeyRelease events. This causes wine to become very confused as
             * to the keyboard state.
             *
             * We need to let those KeyRelease events be processed so that the
             * keyboard state is correct.
             */
            if (event.type == KeyRelease)
            {
                KeySym keysym = 0;
                XKeyEvent *keyevent = &event.xkey;

                XLookupString(keyevent, NULL, 0, &keysym, NULL);
                if (!(keysym == XK_Shift_L ||
                    keysym == XK_Shift_R ||
                    keysym == XK_Control_L ||
                    keysym == XK_Control_R ||
                    keysym == XK_Alt_R ||
                    keysym == XK_Alt_L ||
                    keysym == XK_Meta_R ||
                    keysym == XK_Meta_L))
                        continue; /* not a key we care about, ignore it */
            }
            else
                continue;  /* filtered, ignore it */
        }
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        get_event_data( &event );
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        if (prev_event.type) action = merge_events( &prev_event, &event );
        switch( action )
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        {
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        case MERGE_HANDLE:  /* handle prev, keep new */
            call_event_handler( display, &prev_event );
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            /* fall through */
        case MERGE_DISCARD:  /* discard prev, keep new */
            free_event_data( &prev_event );
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            prev_event = event;
            break;
        case MERGE_KEEP:  /* handle new, keep prev for future merging */
            call_event_handler( display, &event );
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            /* fall through */
        case MERGE_IGNORE: /* ignore new, keep prev for future merging */
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            free_event_data( &event );
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            break;
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        }
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    }
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    if (prev_event.type) call_event_handler( display, &prev_event );
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    free_event_data( &prev_event );
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    XFlush( gdi_display );
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    wine_tsx11_unlock();
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    if (count) TRACE( "processed %d events\n", count );
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    return count;
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}

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/***********************************************************************
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 *           MsgWaitForMultipleObjectsEx   (X11DRV.@)
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 */
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DWORD CDECL X11DRV_MsgWaitForMultipleObjectsEx( DWORD count, const HANDLE *handles,
                                                DWORD timeout, DWORD mask, DWORD flags )
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{
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    DWORD ret;
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    struct x11drv_thread_data *data = TlsGetValue( thread_data_tls_index );
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    if (!data)
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    {
        if (!count && !timeout) return WAIT_TIMEOUT;
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        return WaitForMultipleObjectsEx( count, handles, flags & MWMO_WAITALL,
                                         timeout, flags & MWMO_ALERTABLE );
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    }
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    if (data->current_event) mask = 0;  /* don't process nested events */
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    if (process_events( data->display, filter_event, mask )) ret = count - 1;
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    else if (count || timeout)
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    {
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        ret = WaitForMultipleObjectsEx( count, handles, flags & MWMO_WAITALL,
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                                        timeout, flags & MWMO_ALERTABLE );
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        if (ret == count - 1) process_events( data->display, filter_event, mask );
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    }
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    else ret = WAIT_TIMEOUT;

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    return ret;
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}

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/***********************************************************************
 *           EVENT_x11_time_to_win32_time
 *
 * Make our timer and the X timer line up as best we can
 *  Pass 0 to retrieve the current adjustment value (times -1)
 */
DWORD EVENT_x11_time_to_win32_time(Time time)
{
  static DWORD adjust = 0;
  DWORD now = GetTickCount();
  DWORD ret;

  if (! adjust && time != 0)
  {
    ret = now;
    adjust = time - now;
  }
  else
  {
      /* If we got an event in the 'future', then our clock is clearly wrong. 
         If we got it more than 10000 ms in the future, then it's most likely
         that the clock has wrapped.  */

      ret = time - adjust;
      if (ret > now && ((ret - now) < 10000) && time != 0)
      {
        adjust += ret - now;
        ret    -= ret - now;
      }
  }

  return ret;

}
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/*******************************************************************
 *         can_activate_window
 *
 * Check if we can activate the specified window.
 */
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static inline BOOL can_activate_window( HWND hwnd )
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{
    LONG style = GetWindowLongW( hwnd, GWL_STYLE );
    if (!(style & WS_VISIBLE)) return FALSE;
    if ((style & (WS_POPUP|WS_CHILD)) == WS_CHILD) return FALSE;
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    if (style & WS_MINIMIZE) return FALSE;
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    if (GetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_NOACTIVATE) return FALSE;
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    if (hwnd == GetDesktopWindow()) return FALSE;
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    return !(style & WS_DISABLED);
}


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/**********************************************************************
 *              set_focus
 */
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static void set_focus( Display *display, HWND hwnd, Time time )
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{
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    HWND focus;
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    Window win;
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    GUITHREADINFO threadinfo;
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    TRACE( "setting foreground window to %p\n", hwnd );
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    SetForegroundWindow( hwnd );
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    threadinfo.cbSize = sizeof(threadinfo);
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    GetGUIThreadInfo(0, &threadinfo);
    focus = threadinfo.hwndFocus;
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    if (!focus) focus = threadinfo.hwndActive;
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    if (focus) focus = GetAncestor( focus, GA_ROOT );
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    win = X11DRV_get_whole_window(focus);

    if (win)
    {
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        TRACE( "setting focus to %p (%lx) time=%ld\n", focus, win, time );
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        wine_tsx11_lock();
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        XSetInputFocus( display, win, RevertToParent, time );
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        wine_tsx11_unlock();
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    }
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}


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/**********************************************************************
 *              handle_manager_message
 */
static void handle_manager_message( HWND hwnd, XClientMessageEvent *event )
{
    if (hwnd != GetDesktopWindow()) return;
    if (systray_atom && event->data.l[1] == systray_atom)
        change_systray_owner( event->display, event->data.l[2] );
}


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/**********************************************************************
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 *              handle_wm_protocols
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 */
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static void handle_wm_protocols( HWND hwnd, XClientMessageEvent *event )
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{
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    Atom protocol = (Atom)event->data.l[0];
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    Time event_time = (Time)event->data.l[1];
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    if (!protocol) return;
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    if (protocol == x11drv_atom(WM_DELETE_WINDOW))
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    {
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        update_user_time( event_time );

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        if (hwnd == GetDesktopWindow())
        {
            /* The desktop window does not have a close button that we can
             * pretend to click. Therefore, we simply send it a close command. */
            SendMessageW(hwnd, WM_SYSCOMMAND, SC_CLOSE, 0);
            return;
        }

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        /* Ignore the delete window request if the window has been disabled
         * and we are in managed mode. This is to disallow applications from
         * being closed by the window manager while in a modal state.
         */
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        if (IsWindowEnabled(hwnd))
        {
            HMENU hSysMenu;

            if (GetClassLongW(hwnd, GCL_STYLE) & CS_NOCLOSE) return;
            hSysMenu = GetSystemMenu(hwnd, FALSE);
            if (hSysMenu)
            {
                UINT state = GetMenuState(hSysMenu, SC_CLOSE, MF_BYCOMMAND);
                if (state == 0xFFFFFFFF || (state & (MF_DISABLED | MF_GRAYED)))
                    return;
            }
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            if (GetActiveWindow() != hwnd)
            {
                LRESULT ma = SendMessageW( hwnd, WM_MOUSEACTIVATE,
                                           (WPARAM)GetAncestor( hwnd, GA_ROOT ),
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                                           MAKELPARAM( HTCLOSE, WM_NCLBUTTONDOWN ) );
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                switch(ma)
                {
                    case MA_NOACTIVATEANDEAT:
                    case MA_ACTIVATEANDEAT:
                        return;
                    case MA_NOACTIVATE:
                        break;
                    case MA_ACTIVATE:
                    case 0:
                        SetActiveWindow(hwnd);
                        break;
                    default:
                        WARN( "unknown WM_MOUSEACTIVATE code %d\n", (int) ma );
                        break;
                }
            }
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            PostMessageW( hwnd, WM_SYSCOMMAND, SC_CLOSE, 0 );
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        }
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    }
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    else if (protocol == x11drv_atom(WM_TAKE_FOCUS))
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    {
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        HWND last_focus = x11drv_thread_data()->last_focus;

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        TRACE( "got take focus msg for %p, enabled=%d, visible=%d (style %08x), focus=%p, active=%p, fg=%p, last=%p\n",
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               hwnd, IsWindowEnabled(hwnd), IsWindowVisible(hwnd), GetWindowLongW(hwnd, GWL_STYLE),
               GetFocus(), GetActiveWindow(), GetForegroundWindow(), last_focus );
643

644
        if (can_activate_window(hwnd))
645
        {
646 647 648
            /* simulate a mouse click on the caption to find out
             * whether the window wants to be activated */
            LRESULT ma = SendMessageW( hwnd, WM_MOUSEACTIVATE,
649
                                       (WPARAM)GetAncestor( hwnd, GA_ROOT ),
650
                                       MAKELONG(HTCAPTION,WM_LBUTTONDOWN) );
651 652
            if (ma != MA_NOACTIVATEANDEAT && ma != MA_NOACTIVATE)
            {
653
                set_focus( event->display, hwnd, event_time );
654 655
                return;
            }
656
        }
657 658 659 660 661 662 663 664
        else if (hwnd == GetDesktopWindow())
        {
            hwnd = GetForegroundWindow();
            if (!hwnd) hwnd = last_focus;
            if (!hwnd) hwnd = GetDesktopWindow();
            set_focus( event->display, hwnd, event_time );
            return;
        }
665 666 667 668 669
        /* try to find some other window to give the focus to */
        hwnd = GetFocus();
        if (hwnd) hwnd = GetAncestor( hwnd, GA_ROOT );
        if (!hwnd) hwnd = GetActiveWindow();
        if (!hwnd) hwnd = last_focus;
670
        if (hwnd && can_activate_window(hwnd)) set_focus( event->display, hwnd, event_time );
671 672 673
    }
    else if (protocol == x11drv_atom(_NET_WM_PING))
    {
674 675 676 677
      XClientMessageEvent xev;
      xev = *event;
      
      TRACE("NET_WM Ping\n");
678
      wine_tsx11_lock();
679 680
      xev.window = DefaultRootWindow(xev.display);
      XSendEvent(xev.display, xev.window, False, SubstructureRedirectMask | SubstructureNotifyMask, (XEvent*)&xev);
681
      wine_tsx11_unlock();
682 683
      /* this line is semi-stolen from gtk2 */
      TRACE("NET_WM Pong\n");
684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700
    }
}


static const char * const focus_details[] =
{
    "NotifyAncestor",
    "NotifyVirtual",
    "NotifyInferior",
    "NotifyNonlinear",
    "NotifyNonlinearVirtual",
    "NotifyPointer",
    "NotifyPointerRoot",
    "NotifyDetailNone"
};

/**********************************************************************
701
 *              X11DRV_FocusIn
702
 */
703
static void X11DRV_FocusIn( HWND hwnd, XEvent *xev )
704
{
705
    XFocusChangeEvent *event = &xev->xfocus;
706 707
    XIC xic;

708 709
    if (!hwnd) return;

710
    TRACE( "win %p xwin %lx detail=%s\n", hwnd, event->window, focus_details[event->detail] );
711 712

    if (event->detail == NotifyPointer) return;
713
    if (hwnd == GetDesktopWindow()) return;
714

715 716 717 718 719 720
    if ((xic = X11DRV_get_ic( hwnd )))
    {
        wine_tsx11_lock();
        XSetICFocus( xic );
        wine_tsx11_unlock();
    }
721 722
    if (use_take_focus)
    {
723
        if (hwnd == GetForegroundWindow()) clip_fullscreen_window( hwnd, FALSE );
724 725
        return;
    }
726

727
    if (!can_activate_window(hwnd))
728 729
    {
        HWND hwnd = GetFocus();
730
        if (hwnd) hwnd = GetAncestor( hwnd, GA_ROOT );
731 732
        if (!hwnd) hwnd = GetActiveWindow();
        if (!hwnd) hwnd = x11drv_thread_data()->last_focus;
733
        if (hwnd && can_activate_window(hwnd)) set_focus( event->display, hwnd, CurrentTime );
734
    }
735
    else SetForegroundWindow( hwnd );
736 737
}

738

739
/**********************************************************************
740
 *              X11DRV_FocusOut
741 742
 *
 * Note: only top-level windows get FocusOut events.
743
 */
744
static void X11DRV_FocusOut( HWND hwnd, XEvent *xev )
745
{
746
    XFocusChangeEvent *event = &xev->xfocus;
747 748 749
    HWND hwnd_tmp;
    Window focus_win;
    int revert;
750
    XIC xic;
751

752 753 754
    TRACE( "win %p xwin %lx detail=%s\n", hwnd, event->window, focus_details[event->detail] );

    if (event->detail == NotifyPointer)
755
    {
756
        if (!hwnd && event->window == x11drv_thread_data()->clip_window) reset_clipping_window();
757 758
        return;
    }
759 760
    if (ximInComposeMode) return;

761
    x11drv_thread_data()->last_focus = hwnd;
762 763 764 765 766 767
    if ((xic = X11DRV_get_ic( hwnd )))
    {
        wine_tsx11_lock();
        XUnsetICFocus( xic );
        wine_tsx11_unlock();
    }
768 769 770 771 772
    if (root_window != DefaultRootWindow(event->display))
    {
        if (hwnd == GetDesktopWindow()) reset_clipping_window();
        return;
    }
773
    if (hwnd != GetForegroundWindow()) return;
774
    SendMessageW( hwnd, WM_CANCELMODE, 0, 0 );
775 776 777 778

    /* don't reset the foreground window, if the window which is
       getting the focus is a Wine window */

779
    wine_tsx11_lock();
780
    XGetInputFocus( event->display, &focus_win, &revert );
781 782
    if (focus_win)
    {
783
        if (XFindContext( event->display, focus_win, winContext, (char **)&hwnd_tmp ) != 0)
784 785 786 787 788
            focus_win = 0;
    }
    wine_tsx11_unlock();

    if (!focus_win)
789 790 791 792 793 794 795
    {
        /* Abey : 6-Oct-99. Check again if the focus out window is the
           Foreground window, because in most cases the messages sent
           above must have already changed the foreground window, in which
           case we don't have to change the foreground window to 0 */
        if (hwnd == GetForegroundWindow())
        {
796 797
            TRACE( "lost focus, setting fg to desktop\n" );
            SetForegroundWindow( GetDesktopWindow() );
798 799
        }
    }
800 801 802
}


803 804 805 806 807 808 809 810 811 812 813 814 815 816 817
/***********************************************************************
 *           X11DRV_Expose
 */
static void X11DRV_Expose( HWND hwnd, XEvent *xev )
{
    XExposeEvent *event = &xev->xexpose;
    RECT rect;
    struct x11drv_win_data *data;
    int flags = RDW_INVALIDATE | RDW_ERASE;

    TRACE( "win %p (%lx) %d,%d %dx%d\n",
           hwnd, event->window, event->x, event->y, event->width, event->height );

    if (!(data = X11DRV_get_win_data( hwnd ))) return;

818 819 820 821
    rect.left   = event->x;
    rect.top    = event->y;
    rect.right  = event->x + event->width;
    rect.bottom = event->y + event->height;
822 823
    if (event->window == data->whole_window)
    {
824 825
        OffsetRect( &rect, data->whole_rect.left - data->client_rect.left,
                    data->whole_rect.top - data->client_rect.top );
826 827 828 829 830
        flags |= RDW_FRAME;
    }

    if (event->window != root_window)
    {
831 832 833
        if (GetWindowLongW( data->hwnd, GWL_EXSTYLE ) & WS_EX_LAYOUTRTL)
            mirror_rect( &data->client_rect, &rect );

834 835
        SERVER_START_REQ( update_window_zorder )
        {
836
            req->window      = wine_server_user_handle( hwnd );
837 838 839 840 841 842 843 844 845 846
            req->rect.left   = rect.left;
            req->rect.top    = rect.top;
            req->rect.right  = rect.right;
            req->rect.bottom = rect.bottom;
            wine_server_call( req );
        }
        SERVER_END_REQ;

        flags |= RDW_ALLCHILDREN;
    }
847
    else OffsetRect( &rect, virtual_screen_rect.left, virtual_screen_rect.top );
848 849 850 851 852

    RedrawWindow( hwnd, &rect, 0, flags );
}


853 854 855 856 857 858 859
/**********************************************************************
 *		X11DRV_MapNotify
 */
static void X11DRV_MapNotify( HWND hwnd, XEvent *event )
{
    struct x11drv_win_data *data;

860
    if (event->xany.window == x11drv_thread_data()->clip_window)
861 862 863 864
    {
        clipping_cursor = 1;
        return;
    }
865
    if (!(data = X11DRV_get_win_data( hwnd ))) return;
866
    if (!data->mapped || data->embedded) return;
867 868 869 870 871 872 873 874 875

    if (!data->managed)
    {
        HWND hwndFocus = GetFocus();
        if (hwndFocus && IsChild( hwnd, hwndFocus )) X11DRV_SetFocus(hwndFocus);  /* FIXME */
    }
}


876 877 878 879 880
/**********************************************************************
 *		X11DRV_UnmapNotify
 */
static void X11DRV_UnmapNotify( HWND hwnd, XEvent *event )
{
881
    if (event->xany.window == x11drv_thread_data()->clip_window) clipping_cursor = 0;
882 883 884
}


885 886 887 888 889 890 891 892 893
/***********************************************************************
 *     is_net_wm_state_maximized
 */
static BOOL is_net_wm_state_maximized( Display *display, struct x11drv_win_data *data )
{
    Atom type, *state;
    int format, ret = 0;
    unsigned long i, count, remaining;

894 895
    if (!data->whole_window) return FALSE;

896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916
    wine_tsx11_lock();
    if (!XGetWindowProperty( display, data->whole_window, x11drv_atom(_NET_WM_STATE), 0,
                             65536/sizeof(CARD32), False, XA_ATOM, &type, &format, &count,
                             &remaining, (unsigned char **)&state ))
    {
        if (type == XA_ATOM && format == 32)
        {
            for (i = 0; i < count; i++)
            {
                if (state[i] == x11drv_atom(_NET_WM_STATE_MAXIMIZED_VERT) ||
                    state[i] == x11drv_atom(_NET_WM_STATE_MAXIMIZED_HORZ))
                    ret++;
            }
        }
        XFree( state );
    }
    wine_tsx11_unlock();
    return (ret == 2);
}


917 918 919 920 921 922 923
/***********************************************************************
 *           X11DRV_ReparentNotify
 */
static void X11DRV_ReparentNotify( HWND hwnd, XEvent *xev )
{
    XReparentEvent *event = &xev->xreparent;
    struct x11drv_win_data *data;
924 925
    HWND parent, old_parent;
    DWORD style;
926 927 928

    if (!(data = X11DRV_get_win_data( hwnd ))) return;
    if (!data->embedded) return;
929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944

    if (data->whole_window)
    {
        if (event->parent == root_window)
        {
            TRACE( "%p/%lx reparented to root\n", hwnd, data->whole_window );
            data->embedder = 0;
            SendMessageW( hwnd, WM_CLOSE, 0, 0 );
            return;
        }
        data->embedder = event->parent;
    }

    TRACE( "%p/%lx reparented to %lx\n", hwnd, data->whole_window, event->parent );

    style = GetWindowLongW( hwnd, GWL_STYLE );
945 946
    if (event->parent == root_window)
    {
947 948
        parent = GetDesktopWindow();
        style = (style & ~WS_CHILD) | WS_POPUP;
949 950 951
    }
    else
    {
952 953
        if (!(parent = create_foreign_window( event->display, event->parent ))) return;
        style = (style & ~WS_POPUP) | WS_CHILD;
954
    }
955 956 957 958 959 960 961 962 963 964

    ShowWindow( hwnd, SW_HIDE );
    old_parent = SetParent( hwnd, parent );
    SetWindowLongW( hwnd, GWL_STYLE, style );
    SetWindowPos( hwnd, HWND_TOP, event->x, event->y, 0, 0,
                  SWP_NOACTIVATE | SWP_NOSIZE | SWP_NOCOPYBITS |
                  ((style & WS_VISIBLE) ? SWP_SHOWWINDOW : 0) );

    /* make old parent destroy itself if it no longer has children */
    if (old_parent != GetDesktopWindow()) PostMessageW( old_parent, WM_CLOSE, 0, 0 );
965 966 967
}


968 969 970 971 972 973 974 975 976
/***********************************************************************
 *		X11DRV_ConfigureNotify
 */
void X11DRV_ConfigureNotify( HWND hwnd, XEvent *xev )
{
    XConfigureEvent *event = &xev->xconfigure;
    struct x11drv_win_data *data;
    RECT rect;
    UINT flags;
977 978
    HWND parent;
    BOOL root_coords;
979 980 981 982
    int cx, cy, x = event->x, y = event->y;

    if (!hwnd) return;
    if (!(data = X11DRV_get_win_data( hwnd ))) return;
983 984 985 986
    if (!data->mapped || data->iconic) return;
    if (data->whole_window && !data->managed) return;
    /* ignore synthetic events on foreign windows */
    if (event->send_event && !data->whole_window) return;
987 988 989 990 991 992 993
    if (data->configure_serial && (long)(data->configure_serial - event->serial) > 0)
    {
        TRACE( "win %p/%lx event %d,%d,%dx%d ignoring old serial %lu/%lu\n",
               hwnd, data->whole_window, event->x, event->y, event->width, event->height,
               event->serial, data->configure_serial );
        return;
    }
994 995 996

    /* Get geometry */

997 998 999 1000
    parent = GetAncestor( hwnd, GA_PARENT );
    root_coords = event->send_event;  /* synthetic events are always in root coords */

    if (!root_coords && parent == GetDesktopWindow()) /* normal event, map coordinates to the root */
1001 1002 1003
    {
        Window child;
        wine_tsx11_lock();
1004
        XTranslateCoordinates( event->display, event->window, root_window,
1005 1006
                               0, 0, &x, &y, &child );
        wine_tsx11_unlock();
1007
        root_coords = TRUE;
1008 1009 1010 1011 1012
    }
    rect.left   = x;
    rect.top    = y;
    rect.right  = x + event->width;
    rect.bottom = y + event->height;
1013
    if (root_coords) OffsetRect( &rect, virtual_screen_rect.left, virtual_screen_rect.top );
1014 1015
    TRACE( "win %p/%lx new X rect %d,%d,%dx%d (event %d,%d,%dx%d)\n",
           hwnd, data->whole_window, rect.left, rect.top, rect.right-rect.left, rect.bottom-rect.top,
1016 1017
           event->x, event->y, event->width, event->height );

1018 1019 1020
    X11DRV_X_to_window_rect( data, &rect );
    if (root_coords) MapWindowPoints( 0, parent, (POINT *)&rect, 2 );

1021 1022
    /* Compare what has changed */

1023 1024 1025 1026 1027 1028
    x     = rect.left;
    y     = rect.top;
    cx    = rect.right - rect.left;
    cy    = rect.bottom - rect.top;
    flags = SWP_NOACTIVATE | SWP_NOZORDER;

1029 1030
    if (!data->whole_window) flags |= SWP_NOCOPYBITS;  /* we can't copy bits of foreign windows */

1031
    if (data->window_rect.left == x && data->window_rect.top == y) flags |= SWP_NOMOVE;
1032 1033
    else
        TRACE( "%p moving from (%d,%d) to (%d,%d)\n",
1034
               hwnd, data->window_rect.left, data->window_rect.top, x, y );
1035

1036 1037 1038
    if ((data->window_rect.right - data->window_rect.left == cx &&
         data->window_rect.bottom - data->window_rect.top == cy) ||
        (IsRectEmpty( &data->window_rect ) && event->width == 1 && event->height == 1))
1039
    {
1040 1041 1042 1043 1044
        if (flags & SWP_NOMOVE)  /* if nothing changed, don't do anything */
        {
            TRACE( "Nothing has changed, ignoring event\n" );
            return;
        }
1045 1046 1047 1048
        flags |= SWP_NOSIZE;
    }
    else
        TRACE( "%p resizing from (%dx%d) to (%dx%d)\n",
1049 1050
               hwnd, data->window_rect.right - data->window_rect.left,
               data->window_rect.bottom - data->window_rect.top, cx, cy );
1051

1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070
    if (is_net_wm_state_maximized( event->display, data ))
    {
        if (!IsZoomed( data->hwnd ))
        {
            TRACE( "win %p/%lx is maximized\n", data->hwnd, data->whole_window );
            SendMessageW( data->hwnd, WM_SYSCOMMAND, SC_MAXIMIZE, 0 );
            return;
        }
    }
    else
    {
        if (IsZoomed( data->hwnd ))
        {
            TRACE( "window %p/%lx is no longer maximized\n", data->hwnd, data->whole_window );
            SendMessageW( data->hwnd, WM_SYSCOMMAND, SC_RESTORE, 0 );
            return;
        }
    }

1071 1072 1073 1074
    SetWindowPos( hwnd, 0, x, y, cx, cy, flags );
}


1075 1076 1077 1078 1079 1080 1081 1082 1083
/**********************************************************************
 *           X11DRV_GravityNotify
 */
static void X11DRV_GravityNotify( HWND hwnd, XEvent *xev )
{
    XGravityEvent *event = &xev->xgravity;
    struct x11drv_win_data *data = X11DRV_get_win_data( hwnd );
    RECT rect;

1084
    if (!data || data->whole_window) return;  /* only handle this for foreign windows */
1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102

    rect.left   = event->x;
    rect.top    = event->y;
    rect.right  = rect.left + data->whole_rect.right - data->whole_rect.left;
    rect.bottom = rect.top + data->whole_rect.bottom - data->whole_rect.top;

    TRACE( "win %p/%lx new X rect %d,%d,%dx%d (event %d,%d)\n",
           hwnd, data->whole_window, rect.left, rect.top, rect.right-rect.left, rect.bottom-rect.top,
           event->x, event->y );

    X11DRV_X_to_window_rect( data, &rect );

    if (data->window_rect.left != rect.left || data ->window_rect.top != rect.top)
        SetWindowPos( hwnd, 0, rect.left, rect.top, 0, 0,
                      SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOCOPYBITS );
}


1103 1104 1105
/***********************************************************************
 *           get_window_wm_state
 */
1106
static int get_window_wm_state( Display *display, struct x11drv_win_data *data )
1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121
{
    struct
    {
        CARD32 state;
        XID     icon;
    } *state;
    Atom type;
    int format, ret = -1;
    unsigned long count, remaining;

    wine_tsx11_lock();
    if (!XGetWindowProperty( display, data->whole_window, x11drv_atom(WM_STATE), 0,
                             sizeof(*state)/sizeof(CARD32), False, x11drv_atom(WM_STATE),
                             &type, &format, &count, &remaining, (unsigned char **)&state ))
    {
1122
        if (type == x11drv_atom(WM_STATE) && get_property_size( format, count ) >= sizeof(*state))
1123 1124 1125 1126 1127 1128 1129 1130
            ret = state->state;
        XFree( state );
    }
    wine_tsx11_unlock();
    return ret;
}


1131
/***********************************************************************
1132 1133 1134
 *           handle_wm_state_notify
 *
 * Handle a PropertyNotify for WM_STATE.
1135
 */
1136 1137
static void handle_wm_state_notify( struct x11drv_win_data *data, XPropertyEvent *event,
                                    BOOL update_window )
1138
{
1139 1140
    DWORD style;

1141
    switch(event->state)
1142
    {
1143
    case PropertyDelete:
1144
        TRACE( "%p/%lx: WM_STATE deleted from %d\n", data->hwnd, data->whole_window, data->wm_state );
1145
        data->wm_state = WithdrawnState;
1146
        break;
1147
    case PropertyNewValue:
1148
        {
1149
            int old_state = data->wm_state;
1150 1151 1152
            int new_state = get_window_wm_state( event->display, data );
            if (new_state != -1 && new_state != data->wm_state)
            {
1153 1154
                TRACE( "%p/%lx: new WM_STATE %d from %d\n",
                       data->hwnd, data->whole_window, new_state, old_state );
1155
                data->wm_state = new_state;
1156 1157 1158
                /* ignore the initial state transition out of withdrawn state */
                /* metacity does Withdrawn->NormalState->IconicState when mapping an iconic window */
                if (!old_state) return;
1159 1160 1161
            }
        }
        break;
1162
    }
1163 1164 1165

    if (!update_window || !data->managed || !data->mapped) return;

1166 1167
    style = GetWindowLongW( data->hwnd, GWL_STYLE );

1168 1169 1170
    if (data->iconic && data->wm_state == NormalState)  /* restore window */
    {
        data->iconic = FALSE;
1171 1172
        if (is_net_wm_state_maximized( event->display, data ))
        {
1173 1174 1175 1176 1177 1178 1179
            if ((style & WS_MAXIMIZEBOX) && !(style & WS_DISABLED))
            {
                TRACE( "restoring to max %p/%lx\n", data->hwnd, data->whole_window );
                SendMessageW( data->hwnd, WM_SYSCOMMAND, SC_MAXIMIZE, 0 );
            }
            else TRACE( "not restoring to max win %p/%lx style %08x\n",
                        data->hwnd, data->whole_window, style );
1180
        }
1181
        else if (style & (WS_MINIMIZE | WS_MAXIMIZE))
1182 1183 1184 1185
        {
            TRACE( "restoring win %p/%lx\n", data->hwnd, data->whole_window );
            SendMessageW( data->hwnd, WM_SYSCOMMAND, SC_RESTORE, 0 );
        }
1186
        else TRACE( "not restoring win %p/%lx style %08x\n", data->hwnd, data->whole_window, style );
1187 1188 1189 1190
    }
    else if (!data->iconic && data->wm_state == IconicState)
    {
        data->iconic = TRUE;
1191 1192 1193 1194 1195 1196
        if ((style & WS_MINIMIZEBOX) && !(style & WS_DISABLED))
        {
            TRACE( "minimizing win %p/%lx\n", data->hwnd, data->whole_window );
            SendMessageW( data->hwnd, WM_SYSCOMMAND, SC_MINIMIZE, 0 );
        }
        else TRACE( "not minimizing win %p/%lx style %08x\n", data->hwnd, data->whole_window, style );
1197
    }
1198
}
1199

1200

1201
/***********************************************************************
1202
 *           X11DRV_PropertyNotify
1203
 */
1204
static void X11DRV_PropertyNotify( HWND hwnd, XEvent *xev )
1205 1206 1207 1208 1209 1210 1211
{
    XPropertyEvent *event = &xev->xproperty;
    struct x11drv_win_data *data;

    if (!hwnd) return;
    if (!(data = X11DRV_get_win_data( hwnd ))) return;

1212
    if (event->atom == x11drv_atom(WM_STATE)) handle_wm_state_notify( data, event, TRUE );
1213 1214 1215
}


1216 1217 1218
/* event filter to wait for a WM_STATE change notification on a window */
static Bool is_wm_state_notify( Display *display, XEvent *event, XPointer arg )
{
1219 1220 1221
    if (event->xany.window != (Window)arg) return 0;
    return (event->type == DestroyNotify ||
            (event->type == PropertyNotify && event->xproperty.atom == x11drv_atom(WM_STATE)));
1222 1223 1224 1225 1226
}

/***********************************************************************
 *           wait_for_withdrawn_state
 */
1227
void wait_for_withdrawn_state( Display *display, struct x11drv_win_data *data, BOOL set )
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{
    DWORD end = GetTickCount() + 2000;

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    if (!data->managed) return;
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    TRACE( "waiting for window %p/%lx to become %swithdrawn\n",
           data->hwnd, data->whole_window, set ? "" : "not " );
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    while (data->whole_window && ((data->wm_state == WithdrawnState) == !set))
    {
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        XEvent event;
        int count = 0;

        wine_tsx11_lock();
        while (XCheckIfEvent( display, &event, is_wm_state_notify, (char *)data->whole_window ))
        {
            count++;
            if (XFilterEvent( &event, None )) continue;  /* filtered, ignore it */
            if (event.type == DestroyNotify) call_event_handler( display, &event );
            else
            {
                wine_tsx11_unlock();
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                handle_wm_state_notify( data, &event.xproperty, FALSE );
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                wine_tsx11_lock();
            }
        }
        wine_tsx11_unlock();

        if (!count)
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        {
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            struct pollfd pfd;
            int timeout = end - GetTickCount();

            pfd.fd = ConnectionNumber(display);
            pfd.events = POLLIN;
            if (timeout <= 0 || poll( &pfd, 1, timeout ) != 1)
            {
                FIXME( "window %p/%lx wait timed out\n", data->hwnd, data->whole_window );
                break;
            }
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        }
    }
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    TRACE( "window %p/%lx state now %d\n", data->hwnd, data->whole_window, data->wm_state );
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}


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static HWND find_drop_window( HWND hQueryWnd, LPPOINT lpPt )
{
    RECT tempRect;

    if (!IsWindowEnabled(hQueryWnd)) return 0;
    
    GetWindowRect(hQueryWnd, &tempRect);

    if(!PtInRect(&tempRect, *lpPt)) return 0;

    if (!IsIconic( hQueryWnd ))
    {
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        POINT pt = *lpPt;
        ScreenToClient( hQueryWnd, &pt );
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        GetClientRect( hQueryWnd, &tempRect );

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        if (PtInRect( &tempRect, pt))
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        {
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            HWND ret = ChildWindowFromPointEx( hQueryWnd, pt, CWP_SKIPINVISIBLE|CWP_SKIPDISABLED );
            if (ret && ret != hQueryWnd)
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            {
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                ret = find_drop_window( ret, lpPt );
                if (ret) return ret;
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            }
        }
    }

    if(!(GetWindowLongA( hQueryWnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES)) return 0;
    
    ScreenToClient(hQueryWnd, lpPt);

    return hQueryWnd;
}

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/**********************************************************************
 *           EVENT_DropFromOffix
 *
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 * don't know if it still works (last Changelog is from 96/11/04)
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 */
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static void EVENT_DropFromOffiX( HWND hWnd, XClientMessageEvent *event )
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{
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    struct x11drv_win_data *data;
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    unsigned long	data_length;
    unsigned long	aux_long;
    unsigned char*	p_data = NULL;
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    Atom atom_aux;
    int			x, y, dummy;
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    BOOL	        bAccept;
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    Window		win, w_aux_root, w_aux_child;
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    win = X11DRV_get_whole_window(hWnd);
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    wine_tsx11_lock();
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    XQueryPointer( event->display, win, &w_aux_root, &w_aux_child,
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                   &x, &y, &dummy, &dummy, (unsigned int*)&aux_long);
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    x += virtual_screen_rect.left;
    y += virtual_screen_rect.top;
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    wine_tsx11_unlock();
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    if (!(data = X11DRV_get_win_data( hWnd ))) return;
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    /* find out drop point and drop window */
    if( x < 0 || y < 0 ||
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        x > (data->whole_rect.right - data->whole_rect.left) ||
        y > (data->whole_rect.bottom - data->whole_rect.top) )
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    {   
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	bAccept = GetWindowLongW( hWnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES;
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	x = 0;
	y = 0; 
    }
    else
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    {
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    	POINT	pt = { x, y };
        HWND    hwndDrop = find_drop_window( hWnd, &pt );
	if (hwndDrop)
	{
	    x = pt.x;
	    y = pt.y;
	    bAccept = TRUE;
	}
	else
	{
	    bAccept = FALSE;
	}
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    }
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    if (!bAccept) return;

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    wine_tsx11_lock();
    XGetWindowProperty( event->display, DefaultRootWindow(event->display),
                        x11drv_atom(DndSelection), 0, 65535, FALSE,
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                        AnyPropertyType, &atom_aux, &dummy,
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                        &data_length, &aux_long, &p_data);
    wine_tsx11_unlock();
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    if( !aux_long && p_data)  /* don't bother if > 64K */
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    {
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        char *p = (char *)p_data;
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        char *p_drop;
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        aux_long = 0;
        while( *p )  /* calculate buffer size */
        {
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            INT len = GetShortPathNameA( p, NULL, 0 );
            if (len) aux_long += len + 1;
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            p += strlen(p) + 1;
        }
        if( aux_long && aux_long < 65535 )
        {
            HDROP                 hDrop;
            DROPFILES *lpDrop;

            aux_long += sizeof(DROPFILES) + 1;
            hDrop = GlobalAlloc( GMEM_SHARE, aux_long );
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            lpDrop = GlobalLock( hDrop );
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            if( lpDrop )
            {
                lpDrop->pFiles = sizeof(DROPFILES);
                lpDrop->pt.x = x;
                lpDrop->pt.y = y;
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                lpDrop->fNC = FALSE;
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                lpDrop->fWide = FALSE;
                p_drop = (char *)(lpDrop + 1);
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                p = (char *)p_data;
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                while(*p)
                {
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                    if (GetShortPathNameA( p, p_drop, aux_long - (p_drop - (char *)lpDrop) ))
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                        p_drop += strlen( p_drop ) + 1;
                    p += strlen(p) + 1;
                }
                *p_drop = '\0';
                PostMessageA( hWnd, WM_DROPFILES, (WPARAM)hDrop, 0L );
            }
        }
    }
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    wine_tsx11_lock();
    if( p_data ) XFree(p_data);
    wine_tsx11_unlock();
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}

/**********************************************************************
 *           EVENT_DropURLs
 *
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 * drop items are separated by \n
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 * each item is prefixed by its mime type
 *
 * event->data.l[3], event->data.l[4] contains drop x,y position
 */
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static void EVENT_DropURLs( HWND hWnd, XClientMessageEvent *event )
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{
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  struct x11drv_win_data *win_data;
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  unsigned long	data_length;
  unsigned long	aux_long, drop_len = 0;
  unsigned char	*p_data = NULL; /* property data */
  char		*p_drop = NULL;
  char          *p, *next;
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  int		x, y;
  DROPFILES *lpDrop;
  HDROP hDrop;
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  union {
    Atom	atom_aux;
    int         i;
    Window      w_aux;
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    unsigned int u;
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  }		u; /* unused */

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  if (!(GetWindowLongW( hWnd, GWL_EXSTYLE ) & WS_EX_ACCEPTFILES)) return;
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  wine_tsx11_lock();
  XGetWindowProperty( event->display, DefaultRootWindow(event->display),
                      x11drv_atom(DndSelection), 0, 65535, FALSE,
                      AnyPropertyType, &u.atom_aux, &u.i,
                      &data_length, &aux_long, &p_data);
  wine_tsx11_unlock();
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  if (aux_long)
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    WARN("property too large, truncated!\n");
  TRACE("urls=%s\n", p_data);
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  if( !aux_long && p_data) {	/* don't bother if > 64K */
    /* calculate length */
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    p = (char*) p_data;
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    next = strchr(p, '\n');
    while (p) {
      if (next) *next=0;
      if (strncmp(p,"file:",5) == 0 ) {
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	INT len = GetShortPathNameA( p+5, NULL, 0 );
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	if (len) drop_len += len + 1;
      }
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      if (next) {
	*next = '\n';
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	p = next + 1;
	next = strchr(p, '\n');
      } else {
	p = NULL;
      }
    }
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    if( drop_len && drop_len < 65535 ) {
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      wine_tsx11_lock();
      XQueryPointer( event->display, root_window, &u.w_aux, &u.w_aux,
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                     &x, &y, &u.i, &u.i, &u.u);
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      x += virtual_screen_rect.left;
      y += virtual_screen_rect.top;
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      wine_tsx11_unlock();
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      drop_len += sizeof(DROPFILES) + 1;
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      hDrop = GlobalAlloc( GMEM_SHARE, drop_len );
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      lpDrop = GlobalLock( hDrop );
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      if( lpDrop && (win_data = X11DRV_get_win_data( hWnd )))
      {
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	  lpDrop->pFiles = sizeof(DROPFILES);
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	  lpDrop->pt.x = x;
	  lpDrop->pt.y = y;
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	  lpDrop->fNC =
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	    ( x < (win_data->client_rect.left - win_data->whole_rect.left)  ||
	      y < (win_data->client_rect.top - win_data->whole_rect.top)    ||
	      x > (win_data->client_rect.right - win_data->whole_rect.left) ||
	      y > (win_data->client_rect.bottom - win_data->whole_rect.top) );
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	  lpDrop->fWide = FALSE;
	  p_drop = (char*)(lpDrop + 1);
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      }
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      /* create message content */
      if (p_drop) {
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	p = (char*) p_data;
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	next = strchr(p, '\n');
	while (p) {
	  if (next) *next=0;
	  if (strncmp(p,"file:",5) == 0 ) {
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	    INT len = GetShortPathNameA( p+5, p_drop, 65535 );
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	    if (len) {
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	      TRACE("drop file %s as %s\n", p+5, p_drop);
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	      p_drop += len+1;
	    } else {
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	      WARN("can't convert file %s to dos name\n", p+5);
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	    }
	  } else {
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	    WARN("unknown mime type %s\n", p);
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	  }
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	  if (next) {
	    *next = '\n';
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	    p = next + 1;
	    next = strchr(p, '\n');
	  } else {
	    p = NULL;
	  }
	  *p_drop = '\0';
	}

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        GlobalUnlock(hDrop);
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        PostMessageA( hWnd, WM_DROPFILES, (WPARAM)hDrop, 0L );
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      }
    }
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    wine_tsx11_lock();
    if( p_data ) XFree(p_data);
    wine_tsx11_unlock();
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  }
}

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/**********************************************************************
 *              handle_xembed_protocol
 */
static void handle_xembed_protocol( HWND hwnd, XClientMessageEvent *event )
{
    struct x11drv_win_data *data = X11DRV_get_win_data( hwnd );

    if (!data) return;

    switch (event->data.l[1])
    {
    case XEMBED_EMBEDDED_NOTIFY:
        TRACE( "win %p/%lx XEMBED_EMBEDDED_NOTIFY owner %lx\n", hwnd, event->window, event->data.l[3] );
        data->embedder = event->data.l[3];
        break;
    default:
        TRACE( "win %p/%lx XEMBED message %lu(%lu)\n",
               hwnd, event->window, event->data.l[1], event->data.l[2] );
        break;
    }
}


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/**********************************************************************
 *              handle_dnd_protocol
 */
static void handle_dnd_protocol( HWND hwnd, XClientMessageEvent *event )
{
    Window root, child;
    int root_x, root_y, child_x, child_y;
    unsigned int u;

    /* query window (drag&drop event contains only drag window) */
    wine_tsx11_lock();
    XQueryPointer( event->display, root_window, &root, &child,
                   &root_x, &root_y, &child_x, &child_y, &u);
    if (XFindContext( event->display, child, winContext, (char **)&hwnd ) != 0) hwnd = 0;
    wine_tsx11_unlock();
    if (!hwnd) return;
    if (event->data.l[0] == DndFile || event->data.l[0] == DndFiles)
        EVENT_DropFromOffiX(hwnd, event);
    else if (event->data.l[0] == DndURL)
        EVENT_DropURLs(hwnd, event);
}


struct client_message_handler
{
    int    atom;                                  /* protocol atom */
    void (*handler)(HWND, XClientMessageEvent *); /* corresponding handler function */
};

static const struct client_message_handler client_messages[] =
{
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    { XATOM_MANAGER,      handle_manager_message },
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    { XATOM_WM_PROTOCOLS, handle_wm_protocols },
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    { XATOM__XEMBED,      handle_xembed_protocol },
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    { XATOM_DndProtocol,  handle_dnd_protocol },
    { XATOM_XdndEnter,    X11DRV_XDND_EnterEvent },
    { XATOM_XdndPosition, X11DRV_XDND_PositionEvent },
    { XATOM_XdndDrop,     X11DRV_XDND_DropEvent },
    { XATOM_XdndLeave,    X11DRV_XDND_LeaveEvent }
};


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/**********************************************************************
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 *           X11DRV_ClientMessage
1602
 */
1603
static void X11DRV_ClientMessage( HWND hwnd, XEvent *xev )
1604
{
1605
    XClientMessageEvent *event = &xev->xclient;
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    unsigned int i;
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1608
    if (!hwnd) return;
1609

1610
    if (event->format != 32)
1611
    {
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        WARN( "Don't know how to handle format %d\n", event->format );
        return;
1614
    }
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    for (i = 0; i < sizeof(client_messages)/sizeof(client_messages[0]); i++)
1617
    {
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        if (event->message_type == X11DRV_Atoms[client_messages[i].atom - FIRST_XATOM])
        {
            client_messages[i].handler( hwnd, event );
            return;
        }
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    }
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    TRACE( "no handler found for %ld\n", event->message_type );
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}