90b2c5d4 |
1 | /* -*-c-*- |
2 | * |
47747dbe |
3 | * $Id: xgetline.c,v 1.13 2004/04/08 01:36:29 mdw Exp $ |
90b2c5d4 |
4 | * |
5 | * Fetch a line of text from the user |
6 | * |
7 | * (c) 1998 Straylight/Edgeware |
8 | */ |
9 | |
10 | /*----- Licensing notice --------------------------------------------------* |
11 | * |
12 | * This file is part of the Edgeware X tools collection. |
13 | * |
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. |
18 | * |
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. |
23 | * |
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. |
27 | */ |
28 | |
90b2c5d4 |
29 | /*----- Header files ------------------------------------------------------*/ |
30 | |
31 | #include <stdio.h> |
32 | #include <stdlib.h> |
33 | #include <string.h> |
34 | |
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35 | #include <fcntl.h> |
36 | #include <unistd.h> |
37 | |
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38 | #include <gtk/gtk.h> |
39 | #include <gdk/gdkkeysyms.h> |
40 | |
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41 | #include <mLib/alloc.h> |
42 | #include <mLib/dstr.h> |
43 | #include <mLib/mdwopt.h> |
44 | #include <mLib/report.h> |
45 | #include <mLib/quis.h> |
46 | |
47 | #include <mgLib/cancel.h> |
48 | #include <mgLib/mdwfocus.h> |
90b2c5d4 |
49 | |
50 | /*----- Main code ---------------------------------------------------------*/ |
51 | |
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52 | /* --- @quit@ --- * |
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53 | * |
54 | * Arguments: @GtkWidget *w@ = widget raising the signal |
55 | * @gpointer *p@ = pointer to integer result code |
56 | * |
57 | * Returns: --- |
58 | * |
59 | * Use: Sets the result code to zero (failure) and ends the loop. |
60 | */ |
61 | |
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62 | static void quit(GtkWidget *w, gpointer *p) |
90b2c5d4 |
63 | { |
64 | int *ip = (int *)p; |
65 | *ip = 0; |
66 | gtk_main_quit(); |
67 | } |
68 | |
69 | /* --- @done@ --- * |
70 | * |
71 | * Arguments: @GtkWidget *w@ = widget raising the signal |
72 | * @gpointer *p@ = pointer to integer result code |
73 | * |
74 | * Returns: --- |
75 | * |
76 | * Use: Sets the result code nonzero (success) and ends the loop. |
77 | */ |
78 | |
79 | static void done(GtkWidget *w, gpointer *p) |
80 | { |
81 | int *ip = (int *)p; |
82 | *ip = 1; |
83 | gtk_main_quit(); |
84 | } |
85 | |
f3b35b6b |
86 | /* --- @version@ --- * |
87 | * |
88 | * Arguments: @FILE *fp@ = output stream to print the message on |
89 | * |
90 | * Returns: --- |
91 | * |
92 | * Use: Spits out a version message. |
93 | */ |
94 | |
95 | static void version(FILE *fp) |
96 | { |
97 | fprintf(fp, "%s (xtoys version " VERSION ")\n", QUIS); |
98 | } |
99 | |
100 | /* --- @usage@ --- * |
101 | * |
102 | * Arguments: @FILE *fp@ = output stream to print the message on |
103 | * |
104 | * Returns: --- |
105 | * |
106 | * Use: Spits out a usage message. |
107 | */ |
108 | |
109 | static void usage(FILE *fp) |
110 | { |
715c9c39 |
111 | fprintf(fp, |
112 | "Usage: %s [-in] [-t title] [-p prompt] [-d default]\n" |
113 | "\t[-l|-H file] [-m max]\n", |
114 | QUIS); |
f3b35b6b |
115 | } |
116 | |
90b2c5d4 |
117 | /* --- @main@ --- * |
118 | * |
119 | * Arguments: @int argc@ = number of command line arguments |
120 | * @char *argv[]@ = addresses of arguments |
121 | * |
122 | * Returns: Zero if OK, and we read a string; nonzero if the user |
123 | * cancelled. |
124 | * |
125 | * Use: Reads a string from the user, and returns it on standard |
126 | * output. |
127 | */ |
128 | |
129 | int main(int argc, char *argv[]) |
130 | { |
131 | /* --- Configuration variables --- */ |
132 | |
133 | char *prompt = 0; |
134 | char *dfl = ""; |
135 | char *title = "Input request"; |
136 | int left; |
137 | unsigned f = 0; |
138 | int ok = 0; |
139 | |
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140 | const char *list = 0; |
141 | int histmax = 20; |
3adf144a |
142 | GList *hist = 0; |
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143 | |
3adf144a |
144 | #define f_invis 1u |
145 | #define f_duff 2u |
146 | #define f_history 4u |
147 | #define f_nochoice 8u |
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148 | |
149 | /* --- User interface bits --- */ |
150 | |
151 | GtkWidget *win; |
152 | GtkWidget *box; |
153 | GtkWidget *entry; |
154 | GtkWidget *btn; |
155 | |
156 | /* --- Crank up the toolkit --- * |
157 | * |
158 | * Have to do this here: GTK snarfs some command line options which my |
159 | * parser would barf about. |
160 | */ |
161 | |
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162 | ego(argv[0]); |
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163 | gtk_init(&argc, &argv); |
164 | |
165 | /* --- Parse options from command line --- */ |
166 | |
167 | for (;;) { |
168 | |
169 | /* --- Long options structure --- */ |
170 | |
171 | static struct option opt[] = { |
d0639ab5 |
172 | { "help", 0, 0, 'h' }, |
173 | { "usage", 0, 0, 'u' }, |
174 | { "version", 0, 0, 'v' }, |
175 | { "title", OPTF_ARGREQ, 0, 't' }, |
176 | { "prompt", OPTF_ARGREQ, 0, 'p' }, |
177 | { "default", OPTF_ARGREQ, 0, 'd' }, |
178 | { "password", 0, 0, 'i' }, |
179 | { "invisible", 0, 0, 'i' }, |
180 | { "history", OPTF_ARGREQ, 0, 'H' }, |
181 | { "list", OPTF_ARGREQ, 0, 'l' }, |
182 | { "histmax", OPTF_ARGREQ, 0, 'm' }, |
183 | { "no-choice", 0, 0, 'n' }, |
184 | { 0, 0, 0, 0 } |
90b2c5d4 |
185 | }; |
186 | int i; |
187 | |
188 | /* --- Fetch an option --- */ |
189 | |
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190 | i = getopt_long(argc, argv, "huv t:p:d:i H:l:m:n", opt, 0); |
90b2c5d4 |
191 | if (i < 0) |
192 | break; |
193 | |
194 | /* --- Work out what to do with it --- */ |
195 | |
196 | switch (i) { |
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197 | case 'h': |
198 | version(stdout); |
199 | fputs("\n", stdout); |
200 | usage(stdout); |
d0639ab5 |
201 | fputs("\ |
202 | \n\ |
203 | Pops up a small window requesting input from a user, and echoes the\n\ |
204 | response to stdout, where it can be collected by a shell script.\n\ |
205 | \n\ |
206 | Options available are:\n\ |
207 | \n\ |
208 | -h, --help Display this help text\n\ |
209 | -u, --usage Display a short usage summary\n\ |
210 | -v, --version Display the program's version number\n\ |
211 | \n\ |
212 | -i, --invisible Don't show the user's string as it's typed\n\ |
213 | -t, --title=TITLE Set the window's title string\n\ |
214 | -p, --prompt=PROMPT Set the window's prompt string\n\ |
215 | -d, --default=DEFAULT Set the default string already in the window\n\ |
216 | \n\ |
217 | -l, --list=FILE Read FILE into a drop-down list\n\ |
218 | -n, --no-choice No free text input: must choose item from list\n\ |
219 | -H, --history=FILE As for `--list', but update with new string\n\ |
220 | -m, --histmax=MAX Maximum number of items written back to file\n", |
f3b35b6b |
221 | stdout); |
222 | exit(0); |
223 | break; |
224 | case 'u': |
225 | usage(stdout); |
226 | exit(0); |
227 | break; |
228 | case 'v': |
229 | version(stdout); |
230 | exit(0); |
231 | break; |
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232 | |
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233 | case 't': |
234 | title = optarg; |
235 | break; |
236 | case 'p': |
237 | prompt = optarg; |
238 | break; |
239 | case 'd': |
240 | dfl = optarg; |
241 | break; |
242 | case 'i': |
243 | f |= f_invis; |
244 | break; |
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245 | |
246 | case 'l': |
247 | list = optarg; |
248 | break; |
249 | case 'n': |
250 | f |= f_nochoice; |
251 | break; |
252 | case 'H': |
253 | f |= f_history; |
254 | list = optarg; |
255 | break; |
256 | case 'm': |
257 | histmax = atoi(optarg); |
258 | break; |
259 | |
90b2c5d4 |
260 | default: |
261 | f |= f_duff; |
262 | break; |
263 | } |
264 | } |
265 | |
266 | if (f & f_duff) { |
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267 | usage(stderr); |
90b2c5d4 |
268 | exit(EXIT_FAILURE); |
269 | } |
270 | |
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271 | if ((f & f_invis) && list) { |
272 | die(EXIT_FAILURE, |
273 | "invisible entry is dumb if you provide a list of alternatives!"); |
274 | } |
275 | |
276 | if ((f & f_nochoice) && !list) |
277 | die(EXIT_FAILURE, "nothing to restrict choice to!"); |
278 | |
90b2c5d4 |
279 | /* --- Create the main window --- */ |
280 | |
281 | win = gtk_window_new(GTK_WINDOW_TOPLEVEL); |
282 | gtk_window_set_title(GTK_WINDOW(win), title); |
283 | gtk_window_position(GTK_WINDOW(win), GTK_WIN_POS_MOUSE); |
284 | gtk_signal_connect(GTK_OBJECT(win), "destroy", |
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285 | GTK_SIGNAL_FUNC(quit), &ok); |
90b2c5d4 |
286 | |
287 | /* --- Create the box for laying out the widgets inside --- */ |
288 | |
289 | left = (prompt ? 1 : 0); |
290 | box = gtk_table_new(left + 2, 1, 0); |
291 | |
292 | /* --- Maybe create a prompt widget --- */ |
293 | |
294 | if (prompt) { |
295 | GtkWidget *w = gtk_label_new(prompt); |
296 | gtk_table_attach(GTK_TABLE(box), w, |
297 | 0, 1, 0, 1, 0, GTK_EXPAND, 4, 2); |
298 | gtk_widget_show(w); |
299 | } |
300 | |
301 | /* --- Create the entry widget --- */ |
302 | |
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303 | if (list) { |
304 | FILE *fp = fopen(list, "r"); |
305 | GtkWidget *combo; |
306 | |
307 | /* --- Read the items in from the file --- * |
308 | * |
309 | * Inability to open the file is not a disaster. |
310 | */ |
311 | |
715c9c39 |
312 | if (fp) { |
e34817d8 |
313 | dstr d = DSTR_INIT; |
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314 | |
715c9c39 |
315 | while (dstr_putline(&d, fp) != EOF) { |
316 | hist = g_list_append(hist, xstrdup(d.buf)); |
d0639ab5 |
317 | DRESET(&d); |
715c9c39 |
318 | } |
d0639ab5 |
319 | dstr_destroy(&d); |
715c9c39 |
320 | fclose(fp); |
321 | } |
322 | |
323 | /* --- Now create a combo box --- */ |
324 | |
325 | combo = gtk_combo_new(); |
326 | entry = GTK_COMBO(combo)->entry; |
327 | if (hist) |
328 | gtk_combo_set_popdown_strings(GTK_COMBO(combo), hist); |
329 | |
330 | /* --- Do other configuring --- */ |
331 | |
332 | if (f & f_nochoice) { |
333 | gtk_combo_set_value_in_list(GTK_COMBO(combo), 1, 0); |
334 | gtk_entry_set_editable(GTK_ENTRY(entry), 0); |
335 | } |
336 | gtk_combo_set_case_sensitive(GTK_COMBO(combo), 1); |
337 | gtk_combo_set_use_arrows_always(GTK_COMBO(combo), 1); |
cb171cd0 |
338 | gtk_combo_disable_activate(GTK_COMBO(combo)); |
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339 | if (strcmp(dfl, "@") == 0) |
340 | gtk_entry_set_text(GTK_ENTRY(entry), hist ? (char *)hist->data : ""); |
341 | else |
342 | gtk_entry_set_text(GTK_ENTRY(entry), dfl); |
343 | |
344 | /* --- Set the widget in the right place and show it --- */ |
345 | |
346 | gtk_table_attach(GTK_TABLE(box), combo, |
347 | left, left + 1, 0, 1, |
348 | GTK_EXPAND | GTK_FILL, GTK_EXPAND, 4, 2); |
349 | gtk_widget_show(combo); |
350 | } else { |
351 | entry = gtk_entry_new(); |
352 | gtk_entry_set_text(GTK_ENTRY(entry), dfl); |
353 | if (f & f_invis) |
354 | gtk_entry_set_visibility(GTK_ENTRY(entry), FALSE); |
355 | gtk_table_attach(GTK_TABLE(box), entry, |
356 | left, left + 1, 0, 1, |
357 | GTK_EXPAND | GTK_FILL, GTK_EXPAND, 4, 2); |
358 | gtk_widget_show(entry); |
359 | } |
90b2c5d4 |
360 | |
361 | /* --- Create the default action widget --- */ |
362 | |
363 | btn = gtk_button_new_with_label("OK"); |
364 | gtk_table_attach(GTK_TABLE(box), btn, |
365 | left + 1, left + 2, 0, 1, 0, GTK_EXPAND, 2, 2); |
366 | GTK_WIDGET_SET_FLAGS(btn, GTK_CAN_DEFAULT); |
367 | gtk_widget_show(btn); |
368 | |
369 | /* --- Add the box into the main window --- */ |
370 | |
371 | gtk_container_add(GTK_CONTAINER(win), box); |
372 | gtk_widget_show(box); |
373 | |
374 | /* --- Last minute configuration things --- */ |
375 | |
376 | gtk_widget_grab_default(btn); |
377 | gtk_signal_connect(GTK_OBJECT(btn), "clicked", |
378 | GTK_SIGNAL_FUNC(done), &ok); |
379 | gtk_signal_connect_object(GTK_OBJECT(entry), "activate", |
380 | GTK_SIGNAL_FUNC(gtk_widget_activate), |
381 | GTK_OBJECT(btn)); |
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382 | cancel(GTK_WINDOW(win), 0); |
90b2c5d4 |
383 | |
384 | /* --- Go go go --- */ |
385 | |
7347b0d9 |
386 | gtk_widget_realize(win); |
387 | mdwfocus(win); |
208b901e |
388 | gtk_widget_grab_focus(entry); |
90b2c5d4 |
389 | gtk_widget_show(win); |
390 | gtk_main(); |
391 | |
392 | /* --- Output the result --- */ |
393 | |
394 | if (ok) { |
395 | char *p = gtk_entry_get_text(GTK_ENTRY(entry)); |
715c9c39 |
396 | |
397 | /* --- If history is enabled, output a new history file --- * |
398 | * |
b907fbe4 |
399 | * If the first entry was accepted verbatim, or if the entry is a blank |
400 | * line, don't bother. |
715c9c39 |
401 | */ |
402 | |
b907fbe4 |
403 | if (f & f_history && *p && !(hist && strcmp(p, hist->data) == 0)) { |
715c9c39 |
404 | int fd; |
405 | FILE *fp; |
406 | int i; |
407 | GList *g; |
408 | |
409 | if ((fd = open(list, O_WRONLY | O_CREAT | O_TRUNC, 0600)) < 0) |
410 | goto fail; |
411 | if ((fp = fdopen(fd, "w")) == 0) { |
412 | close(fd); |
413 | goto fail; |
414 | } |
415 | |
416 | fputs(p, fp); |
417 | fputc('\n', fp); |
418 | |
419 | for (i = 1, g = hist; (histmax < 1 || i < histmax) && g; g = g->next) { |
b907fbe4 |
420 | if (*(char *)g->data && strcmp(g->data, p) != 0) { |
715c9c39 |
421 | fputs(g->data, fp); |
422 | fputc('\n', fp); |
423 | i++; |
424 | } |
425 | } |
426 | fclose(fp); |
427 | fail:; |
428 | } |
429 | |
430 | /* --- Print the result and go away --- */ |
431 | |
90b2c5d4 |
432 | puts(p); |
433 | } |
434 | |
435 | return (ok ? EXIT_SUCCESS : EXIT_FAILURE); |
436 | } |
437 | |
438 | /*----- That's all, folks -------------------------------------------------*/ |