3 * $Id: xgetline.c,v 1.11 1999/08/20 07:30:33 mdw Exp $
5 * Fetch a line of text from the user
7 * (c) 1998 Straylight/Edgeware
10 /*----- Licensing notice --------------------------------------------------*
12 * This file is part of the Edgeware X tools collection.
14 * X tools is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * X tools is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with X tools; if not, write to the Free Software Foundation,
26 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29 /*----- Revision history --------------------------------------------------*
31 * $Log: xgetline.c,v $
32 * Revision 1.11 1999/08/20 07:30:33 mdw
33 * Miscellaneous changes, mostly concerning options parsing.
35 * Revision 1.10 1999/05/21 22:09:19 mdw
36 * Take advantage of new dynamic string macros.
38 * Revision 1.9 1999/05/05 18:54:37 mdw
39 * Keep blank lines out of the history list.
41 * Revision 1.8 1998/12/16 19:58:53 mdw
42 * Stop the dropdown list from dropping down when you press enter.
44 * Revision 1.7 1998/12/11 09:53:02 mdw
45 * Updates for mLib/mgLib. Support history files for recalling past
46 * entries, using a drop-down list.
48 * Revision 1.6 1998/12/03 00:56:29 mdw
49 * Set focus on the entry field, rather than leaving things to luck.
51 * Revision 1.5 1998/12/03 00:39:44 mdw
52 * Force focus when starting up.
54 * Revision 1.4 1998/11/30 22:36:47 mdw
55 * Tidy up tabbing in help texts very slightly.
57 * Revision 1.3 1998/11/21 22:30:20 mdw
58 * Support GNU-style long options throughout, and introduce proper help
59 * text to all programs. Update manual pages to match.
61 * Revision 1.2 1998/11/18 21:25:30 mdw
62 * Remove bogus `-h' option from the options list.
64 * Revision 1.1 1998/11/16 23:00:49 mdw
69 /*----- Header files ------------------------------------------------------*/
79 #include <gdk/gdkkeysyms.h>
81 #include <mLib/alloc.h>
82 #include <mLib/dstr.h>
83 #include <mLib/mdwopt.h>
84 #include <mLib/report.h>
85 #include <mLib/quis.h>
87 #include <mgLib/cancel.h>
88 #include <mgLib/mdwfocus.h>
90 /*----- Main code ---------------------------------------------------------*/
94 * Arguments: @GtkWidget *w@ = widget raising the signal
95 * @gpointer *p@ = pointer to integer result code
99 * Use: Sets the result code to zero (failure) and ends the loop.
102 static void quit(GtkWidget *w, gpointer *p)
111 * Arguments: @GtkWidget *w@ = widget raising the signal
112 * @gpointer *p@ = pointer to integer result code
116 * Use: Sets the result code nonzero (success) and ends the loop.
119 static void done(GtkWidget *w, gpointer *p)
126 /* --- @version@ --- *
128 * Arguments: @FILE *fp@ = output stream to print the message on
132 * Use: Spits out a version message.
135 static void version(FILE *fp)
137 fprintf(fp, "%s (xtoys version " VERSION ")\n", QUIS);
142 * Arguments: @FILE *fp@ = output stream to print the message on
146 * Use: Spits out a usage message.
149 static void usage(FILE *fp)
152 "Usage: %s [-in] [-t title] [-p prompt] [-d default]\n"
153 "\t[-l|-H file] [-m max]\n",
159 * Arguments: @int argc@ = number of command line arguments
160 * @char *argv[]@ = addresses of arguments
162 * Returns: Zero if OK, and we read a string; nonzero if the user
165 * Use: Reads a string from the user, and returns it on standard
169 int main(int argc, char *argv[])
171 /* --- Configuration variables --- */
175 char *title = "Input request";
180 const char *list = 0;
191 /* --- User interface bits --- */
198 /* --- Crank up the toolkit --- *
200 * Have to do this here: GTK snarfs some command line options which my
201 * parser would barf about.
205 gtk_init(&argc, &argv);
207 /* --- Parse options from command line --- */
211 /* --- Long options structure --- */
213 static struct option opt[] = {
214 { "help", 0, 0, 'h' },
215 { "usage", 0, 0, 'u' },
216 { "version", 0, 0, 'v' },
217 { "title", OPTF_ARGREQ, 0, 't' },
218 { "prompt", OPTF_ARGREQ, 0, 'p' },
219 { "default", OPTF_ARGREQ, 0, 'd' },
220 { "password", 0, 0, 'i' },
221 { "invisible", 0, 0, 'i' },
222 { "history", OPTF_ARGREQ, 0, 'H' },
223 { "list", OPTF_ARGREQ, 0, 'l' },
224 { "histmax", OPTF_ARGREQ, 0, 'm' },
225 { "no-choice", 0, 0, 'n' },
230 /* --- Fetch an option --- */
232 i = getopt_long(argc, argv, "huv t:p:d:i H:l:m:n", opt, 0);
236 /* --- Work out what to do with it --- */
245 Pops up a small window requesting input from a user, and echoes the\n\
246 response to stdout, where it can be collected by a shell script.\n\
248 Options available are:\n\
250 -h, --help Display this help text\n\
251 -u, --usage Display a short usage summary\n\
252 -v, --version Display the program's version number\n\
254 -i, --invisible Don't show the user's string as it's typed\n\
255 -t, --title=TITLE Set the window's title string\n\
256 -p, --prompt=PROMPT Set the window's prompt string\n\
257 -d, --default=DEFAULT Set the default string already in the window\n\
259 -l, --list=FILE Read FILE into a drop-down list\n\
260 -n, --no-choice No free text input: must choose item from list\n\
261 -H, --history=FILE As for `--list', but update with new string\n\
262 -m, --histmax=MAX Maximum number of items written back to file\n",
299 histmax = atoi(optarg);
313 if ((f & f_invis) && list) {
315 "invisible entry is dumb if you provide a list of alternatives!");
318 if ((f & f_nochoice) && !list)
319 die(EXIT_FAILURE, "nothing to restrict choice to!");
321 /* --- Create the main window --- */
323 win = gtk_window_new(GTK_WINDOW_TOPLEVEL);
324 gtk_window_set_title(GTK_WINDOW(win), title);
325 gtk_window_position(GTK_WINDOW(win), GTK_WIN_POS_MOUSE);
326 gtk_signal_connect(GTK_OBJECT(win), "destroy",
327 GTK_SIGNAL_FUNC(quit), &ok);
329 /* --- Create the box for laying out the widgets inside --- */
331 left = (prompt ? 1 : 0);
332 box = gtk_table_new(left + 2, 1, 0);
334 /* --- Maybe create a prompt widget --- */
337 GtkWidget *w = gtk_label_new(prompt);
338 gtk_table_attach(GTK_TABLE(box), w,
339 0, 1, 0, 1, 0, GTK_EXPAND, 4, 2);
343 /* --- Create the entry widget --- */
346 FILE *fp = fopen(list, "r");
349 /* --- Read the items in from the file --- *
351 * Inability to open the file is not a disaster.
358 while (dstr_putline(&d, fp) != EOF) {
359 hist = g_list_append(hist, xstrdup(d.buf));
366 /* --- Now create a combo box --- */
368 combo = gtk_combo_new();
369 entry = GTK_COMBO(combo)->entry;
371 gtk_combo_set_popdown_strings(GTK_COMBO(combo), hist);
373 /* --- Do other configuring --- */
375 if (f & f_nochoice) {
376 gtk_combo_set_value_in_list(GTK_COMBO(combo), 1, 0);
377 gtk_entry_set_editable(GTK_ENTRY(entry), 0);
379 gtk_combo_set_case_sensitive(GTK_COMBO(combo), 1);
380 gtk_combo_set_use_arrows_always(GTK_COMBO(combo), 1);
381 gtk_combo_disable_activate(GTK_COMBO(combo));
382 if (strcmp(dfl, "@") == 0)
383 gtk_entry_set_text(GTK_ENTRY(entry), hist ? (char *)hist->data : "");
385 gtk_entry_set_text(GTK_ENTRY(entry), dfl);
387 /* --- Set the widget in the right place and show it --- */
389 gtk_table_attach(GTK_TABLE(box), combo,
390 left, left + 1, 0, 1,
391 GTK_EXPAND | GTK_FILL, GTK_EXPAND, 4, 2);
392 gtk_widget_show(combo);
394 entry = gtk_entry_new();
395 gtk_entry_set_text(GTK_ENTRY(entry), dfl);
397 gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE);
398 gtk_table_attach(GTK_TABLE(box), entry,
399 left, left + 1, 0, 1,
400 GTK_EXPAND | GTK_FILL, GTK_EXPAND, 4, 2);
401 gtk_widget_show(entry);
404 /* --- Create the default action widget --- */
406 btn = gtk_button_new_with_label("OK");
407 gtk_table_attach(GTK_TABLE(box), btn,
408 left + 1, left + 2, 0, 1, 0, GTK_EXPAND, 2, 2);
409 GTK_WIDGET_SET_FLAGS(btn, GTK_CAN_DEFAULT);
410 gtk_widget_show(btn);
412 /* --- Add the box into the main window --- */
414 gtk_container_add(GTK_CONTAINER(win), box);
415 gtk_widget_show(box);
417 /* --- Last minute configuration things --- */
419 gtk_widget_grab_default(btn);
420 gtk_signal_connect(GTK_OBJECT(btn), "clicked",
421 GTK_SIGNAL_FUNC(done), &ok);
422 gtk_signal_connect_object(GTK_OBJECT(entry), "activate",
423 GTK_SIGNAL_FUNC(gtk_widget_activate),
425 cancel(GTK_WINDOW(win), 0);
427 /* --- Go go go --- */
429 gtk_widget_realize(win);
431 gtk_widget_grab_focus(entry);
432 gtk_widget_show(win);
435 /* --- Output the result --- */
438 char *p = gtk_entry_get_text(GTK_ENTRY(entry));
440 /* --- If history is enabled, output a new history file --- *
442 * If the first entry was accepted verbatim, or if the entry is a blank
443 * line, don't bother.
446 if (f & f_history && *p && !(hist && strcmp(p, hist->data) == 0)) {
452 if ((fd = open(list, O_WRONLY | O_CREAT | O_TRUNC, 0600)) < 0)
454 if ((fp = fdopen(fd, "w")) == 0) {
462 for (i = 1, g = hist; (histmax < 1 || i < histmax) && g; g = g->next) {
463 if (*(char *)g->data && strcmp(g->data, p) != 0) {
473 /* --- Print the result and go away --- */
478 return (ok ? EXIT_SUCCESS : EXIT_FAILURE);
481 /*----- That's all, folks -------------------------------------------------*/