/* 

 * Motif

 *

 * Copyright (c) 1987-2012, The Open Group. All rights reserved.

 *

 * These libraries and programs are free software; you can

 * redistribute them and/or modify them under the terms of the GNU

 * Lesser General Public License as published by the Free Software

 * Foundation; either version 2 of the License, or (at your option)

 * any later version.

 *

 * These libraries and programs are distributed in the hope that

 * they 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 these librararies and programs; if not, write

 * to the Free Software Foundation, Inc., 51 Franklin Street, Fifth

 * Floor, Boston, MA 02110-1301 USA

*/ 

/* 

 * HISTORY

*/ 

#ifdef REV_INFO

#ifndef lint

static char rcsid[] = "$XConsortium: SetFocus.c /main/8 1995/07/14 11:43:06 drk $"

#endif

#endif

/***********************************************************************

  	@(#)SetFocus.c	1.9.1.1	Date:1/22/91

  	Author: TAT

	History:

            05/30/90 SJS add to sccs

            06/21/90 SJS do not set focus to unmapped objects

            07/11/90 SJS test for success of XmProcessTraversal() even though

                         it is somewhat meaningless

            08/23/90 SJS synchronize for events when creating the dummy window

            10/17/90 SJS only worry about FocusIn/FocusOut when focus really

		         changes

	Calls:

	Summary:

            Sets the keyboard focus to the specified widget

        INPUTS:

            widget - the widget to set the keyboard focus to.

        OUTPUTS:

            none

        RETURNS:

            nothing

************************************************************************/

#include "xislib.h"

#include <Xm/XmP.h>         /* Warning: Potentially non-portable */

void xisSetKeyboardFocus(widget,object_type,instance)

Widget widget;

int object_type;

int instance;

{

    XisObjectRecord *object = xisFindObjectFromWidget(widget);

    XisObjectRecord *current_object;

    unsigned char   rc_type;

    Arg             args[1];

    if (widget == NULL) 

        (*xisTraceMsg)("Got send_event_request = SetFocus to RootWindow\n");

    else

        (*xisTraceMsg)("Got send_event_request = SetFocus to %s\n",

                  xisGetObjectName(object));

    if (widget != NULL && XmIsRowColumn(widget)) {

        XtSetArg(args[0], XmNrowColumnType, &rc_type);

        XtGetValues(widget, args, 1);

    }

    /* Call all relavent InformExpectedActions functions for Focus Out */

    current_object = xisGetFocusObject();

    if(object == current_object) {

        return; /* Already here */

    }

    xisInform.is_valid = 1;

    xisInform.action_obj = current_object;

    xisInform.modifier_key_status = 0;

    xisInform.button_num = 0;

    xisInform.key_code = 0;

    xisInform.edge_code = 0;

    xisInform.num_clicks = 0;

    xisInform.event_code = EventFocusOut;

    while (current_object != NULL) {

        if (current_object->proc_InformExpectedActions != NULL) {

            xisInform.current_obj = current_object;

            (*current_object->proc_InformExpectedActions)(EventFocusOut); 

        }

        current_object = current_object->parent;

    }

    if (widget == NULL || object == (&xisObjects[0]) ||

        !xisWindowExists(XtWindowOfObject(widget)) ||

        !xisIsMapped(XtWindowOfObject(widget)))  {

        if (!xisDummyFocusWindow) {

            xisCreateSimple();

            (void)xisSynchronize();

	}

        xisState.focus_widget = NULL;

        xisState.focus_object_type = 0;

        xisState.focus_instance = 0;

        xisState.focus_window = xisDummyFocusWindow;

        XSetInputFocus(xisDisplay,xisState.focus_window,RevertToParent,

                       CurrentTime);

    }

    else {

        xisState.focus_window = object->id.window;

        xisState.focus_widget = widget;

        xisState.focus_object_type = object_type;

        xisState.focus_instance = instance;

        /* Call all relavent InformExpectedActions functions for Focus In */

        current_object = object;

        xisInform.action_obj = object;

        xisInform.modifier_key_status = 0;

        xisInform.button_num = 0;

        xisInform.key_code = 0;

        xisInform.edge_code = 0;

        xisInform.num_clicks = 0;

        xisInform.event_code = EventFocusIn;

        while (current_object != NULL) {

            if (current_object->proc_InformExpectedActions != NULL) {

                xisInform.current_obj = current_object;

                (*current_object->proc_InformExpectedActions)(EventFocusIn); 

	    }

            current_object = current_object->parent;

        }

        if(object->visibility_state & IsViewable) {

            XSetInputFocus(xisDisplay,XtWindow(xisGetShellWidget(widget)),

                           RevertToNone,CurrentTime);

        }

        /* XmProcessTraversal() does not do anything useful in the way

           of being a query function. Add Check for RoWColumn Type. This

   	   because in 1.2 XmProcessTraversal() will not return False

	   for the Traversal to a MenuBar, Pulldown, or Popup.   */

        if(!XmProcessTraversal(widget,XmTRAVERSE_CURRENT) &&

           rc_type != XmMENU_BAR &&

           rc_type != XmMENU_POPUP &&

           rc_type != XmMENU_PULLDOWN ) {

            XisObjectRecord *new_focus; /* Lord only knows where it ends up */

            XGetInputFocus(xisDisplay,&xisState.focus_window,

                           &xisState.focus_revert_to);

            new_focus = xisFindObjectFromWindow(xisState.focus_window);

            if(new_focus != NULL) {

                xisState.focus_widget = new_focus->id.widget;

                xisState.focus_object_type = new_focus->id.object_type;

                xisState.focus_instance = new_focus->id.instance;

            }

        }

        else {

            XGetInputFocus(xisDisplay,&xisState.focus_window,

                           &xisState.focus_revert_to);

        }

    } /* End if (widget == NULL || object == (&xisObjects[0]) */

    xisProcessEvents(NULL,0);

} /* End xisSetFocus() */