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/***************************************************************************/
/***************************************************************************/
/* */
/* (c) 1995-1998. The Regents of the University of California. All */
/* rights reserved. */
/* */
/* This work was produced at the University of California, Lawrence */
/* Livermore National Laboratory (UC LLNL) under contract no. */
/* W-7405-ENG-48 (Contract 48) between the U.S. Department of Energy */
/* (DOE) and The Regents of the University of California (University) */
/* for the operation of UC LLNL. Copyright is reserved to the */
/* University for purposes of controlled dissemination, */
/* commercialization through formal licensing, or other disposition */
/* under terms of Contract 48; DOE policies, regulations and orders; */
/* and U.S. statutes. The rights of the Federal Government are */
/* reserved under Contract 48 subject to the restrictions agreed upon */
/* by the DOE and University. */
/* */
/* */
/* DISCLAIMER */
/* */
/* This software was prepared as an account of work sponsored by an */
/* agency of the United States Government. Neither the United States */
/* Government nor the University of California nor any of their */
/* employees, makes any warranty, express or implied, or assumes any */
/* liability or responsibility for the accuracy, completeness, or */
/* usefulness of any information, apparatus, product, or process */
/* disclosed, or represents that its specific commercial products, */
/* process, or service by trade name, trademark, manufacturer, or */
/* otherwise, does not necessarily constitute or imply its */
/* endorsement, recommendation, or favoring by the United States */
/* Government or the University of California. The views and opinions */
/* of the authors expressed herein do not necessarily state or reflect */
/* those of the United States Government or the University of */
/* California, and shall not be used for advertising or product */
/* endorsement purposes. */
/* */
/* Permission to use, copy, modify and distribute this software and its */
/* documentation for any non-commercial purpose, without fee, is */
/* hereby granted, provided that the above copyright notice and this */
/* permission notice appear in all copies of the software and */
/* supporting documentation, and that all UC LLNL identification in */
/* the user interface remain unchanged. The title to copyright LLNL */
/* XDIR shall at all times remain with The Regents of the University */
/* of California and users agree to preserve same. Users seeking the */
/* right to make derivative works with LLNL XDIR for commercial */
/* purposes may obtain a license from the Lawrence Livermore National */
/* Laboratory's Technology Transfer Office, P.O. Box 808, L-795, */
/* Livermore, CA 94550. */
/* */
/***************************************************************************/
/***************************************************************************/
#include <Xm/Xm.h>
#include "xdir.h"
static int operation_in_progress = False;
static int controls_are_grey;
extern int search_complete;
extern struct dirwin_st *dirwin_head;
/*
* start_op - This function must be called at the start of each
* operation to prevent the possibility of the user
* invoking a new operation while one is still in
* progress. If "grey" is "True", grey out directory
* window controls. If an operation is already in
* progress, this function beeps and returns False,
* otherwise True is returned. At the end of an
* operation, end_op() must be called.
*/
start_op(grey)
int grey;
{
/* Is there an operation already in progress */
if (operation_in_progress) {
beep();
return False;
}
/* If requested, grey out directory window controls */
if (grey)
enable_controls(False);
/* The operation is in progress */
operation_in_progress = True;
controls_are_grey = grey;
return True;
}
/*
* end_op - This function must be called at the end of each operation
* to prevent the possibility of the user invoking a new
* operation while one is still in progress. start_op()
* must be called at the start of each operation.
*/
end_op()
{
/* Sanity check */
if (!operation_in_progress)
fatal_error("Bug in end_op()");
/* If directory window controls are greyed out, reenable them */
if (controls_are_grey)
enable_controls(True);
/* The operation is complete */
operation_in_progress = False;
}
/*
* update_dir_controls - Set the sensitivity of directory controls.
*/
update_dir_controls()
{
struct dirwin_st *dirwin = dirwin_head;
int i;
int viewable = False;
/* Set sensitivity of controls that operate on selected entries */
while (dirwin) {
if (dirwin->has_selection && has_selected_entries(dirwin)) {
XtSetSensitive(dirwin->w_deleteItem, True);
XtSetSensitive(dirwin->w_renameItem, True);
XtSetSensitive(dirwin->w_deleteButton, True);
for (i=0; i<dirwin->nentries; i++) {
if (dirwin->entries[i].state == SELECTED) {
switch (dirwin->entries[i].type) {
case UNKNOWN_TYPE:
case FILE_TYPE:
case LINK_TYPE:
case EXECUTABLE_TYPE:
viewable = True;
}
}
}
XtSetSensitive(dirwin->w_viewItem, viewable);
} else {
XtSetSensitive(dirwin->w_deleteItem, False);
XtSetSensitive(dirwin->w_renameItem, False);
XtSetSensitive(dirwin->w_deleteButton, False);
XtSetSensitive(dirwin->w_viewItem, False);
}
if (search_complete)
XtSetSensitive(dirwin->w_searchAgainItem, False);
else
XtSetSensitive(dirwin->w_searchAgainItem, True);
dirwin = dirwin->next;
}
}
/*
* enable_controls - If "enable" is FALSE, certain controls that should
* not be used during deletions are turned off. If
* "enable" is TRUE, these controls are turned back on.
*/
enable_controls(enable)
int enable;
{
struct dirwin_st *dirwin = dirwin_head;
while (dirwin) {
XtSetSensitive(dirwin->w_dirMenuBar, enable);
XtSetSensitive(dirwin->w_urButton, enable);
XtSetSensitive(dirwin->w_toolbarForm, enable);
update_layout_mode_buttons(dirwin);
XtSetSensitive(dirwin->w_scrolledWindow, enable);
dirwin = dirwin->next;
}
}
/*
* op_in_progress - Returns True if an operation is in progress, else False.
*/
op_in_progress()
{
return operation_in_progress;
}
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