1 /*
2 * $Id: inputbox.c,v 1.67 2011/06/29 09:48:34 tom Exp $
3 *
4 * inputbox.c -- implements the input box
5 *
6 * Copyright 2000-2010,2011 Thomas E. Dickey
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU Lesser General Public License, version 2.1
10 * as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this program; if not, write to
19 * Free Software Foundation, Inc.
20 * 51 Franklin St., Fifth Floor
21 * Boston, MA 02110, USA.
22 *
23 * An earlier version of this program lists as authors:
24 * Savio Lam (lam836@cs.cuhk.hk)
25 */
26
27 #include <dialog.h>
28 #include <dlg_keys.h>
29
30 #define sTEXT -1
31
32 #define NAVIGATE_BINDINGS \
33 DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_DOWN ), \
34 DLG_KEYS_DATA( DLGK_FIELD_NEXT, KEY_RIGHT ), \
35 DLG_KEYS_DATA( DLGK_FIELD_NEXT, TAB ), \
36 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_BTAB ), \
37 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_LEFT ), \
38 DLG_KEYS_DATA( DLGK_FIELD_PREV, KEY_UP )
39
40 /*
41 * Display a dialog box for entering a string
42 */
43 int
dialog_inputbox(const char * title,const char * cprompt,int height,int width,const char * init,const int password)44 dialog_inputbox(const char *title, const char *cprompt, int height, int width,
45 const char *init, const int password)
46 {
47 /* *INDENT-OFF* */
48 static DLG_KEYS_BINDING binding[] = {
49 HELPKEY_BINDINGS,
50 ENTERKEY_BINDINGS,
51 NAVIGATE_BINDINGS,
52 END_KEYS_BINDING
53 };
54 static DLG_KEYS_BINDING binding2[] = {
55 INPUTSTR_BINDINGS,
56 HELPKEY_BINDINGS,
57 ENTERKEY_BINDINGS,
58 NAVIGATE_BINDINGS,
59 END_KEYS_BINDING
60 };
61 /* *INDENT-ON* */
62
63 #ifdef KEY_RESIZE
64 int old_height = height;
65 int old_width = width;
66 #endif
67 int xorg, yorg;
68 int x, y, box_y, box_x, box_width;
69 int show_buttons;
70 int col_offset = 0;
71 int chr_offset = 0;
72 int key, fkey, code;
73 int result = DLG_EXIT_UNKNOWN;
74 int state;
75 int first;
76 char *input;
77 WINDOW *dialog;
78 WINDOW *editor;
79 char *prompt = dlg_strclone(cprompt);
80 const char **buttons = dlg_ok_labels();
81
82 dlg_does_output();
83
84 dlg_tab_correct_str(prompt);
85
86 /* Set up the initial value */
87 input = dlg_set_result(init);
88
89 #ifdef KEY_RESIZE
90 retry:
91 #endif
92 show_buttons = TRUE;
93 state = dialog_vars.defaultno ? dlg_defaultno_button() : sTEXT;
94 first = (state == sTEXT);
95 key = fkey = 0;
96
97 if (init != NULL) {
98 dlg_auto_size(title, prompt, &height, &width, 5,
99 MIN(MAX(dlg_count_columns(init) + 7, 26),
100 SCOLS - (dialog_vars.begin_set ?
101 dialog_vars.begin_x : 0)));
102 chr_offset = (int) strlen(init);
103 } else {
104 dlg_auto_size(title, prompt, &height, &width, 5, 26);
105 }
106 dlg_button_layout(buttons, &width);
107 dlg_print_size(height, width);
108 dlg_ctl_size(height, width);
109
110 xorg = dlg_box_x_ordinate(width);
111 yorg = dlg_box_y_ordinate(height);
112
113 dialog = dlg_new_window(height, width, yorg, xorg);
114 dlg_register_window(dialog, "inputbox", binding);
115 dlg_register_buttons(dialog, "inputbox", buttons);
116
117 dlg_mouse_setbase(xorg, yorg);
118
119 dlg_draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr);
120 dlg_draw_bottom_box(dialog);
121 dlg_draw_title(dialog, title);
122
123 wattrset(dialog, dialog_attr);
124 dlg_draw_helpline(dialog, FALSE);
125 dlg_print_autowrap(dialog, prompt, height, width);
126
127 /* Draw the input field box */
128 box_width = width - 6;
129 getyx(dialog, y, x);
130 box_y = y + 2;
131 box_x = (width - box_width) / 2;
132 dlg_mouse_mkregion(y + 1, box_x - 1, 3, box_width + 2, 'i');
133 dlg_draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2,
134 border_attr, dialog_attr);
135
136 /* Make a window for the input-field, to associate bindings */
137 editor = dlg_sub_window(dialog, 1, box_width, yorg + box_y, xorg + box_x);
138 dlg_register_window(editor, "inputbox", binding2);
139
140 while (result == DLG_EXIT_UNKNOWN) {
141 int edit = 0;
142
143 /*
144 * The last field drawn determines where the cursor is shown:
145 */
146 if (show_buttons) {
147 show_buttons = FALSE;
148 col_offset = dlg_edit_offset(input, chr_offset, box_width);
149 (void) wmove(dialog, box_y, box_x + col_offset);
150 dlg_draw_buttons(dialog, height - 2, 0, buttons, state, FALSE, width);
151 }
152
153 if (!first) {
154 key = dlg_mouse_wgetch((state == sTEXT) ? editor : dialog, &fkey);
155 if (dlg_result_key(key, fkey, &result))
156 break;
157 }
158
159 /*
160 * Handle mouse clicks first, since we want to know if this is a button,
161 * or something that dlg_edit_string() should handle.
162 */
163 if (fkey
164 && is_DLGK_MOUSE(key)
165 && (code = dlg_ok_buttoncode(key - M_EVENT)) >= 0) {
166 result = code;
167 continue;
168 }
169
170 if (state == sTEXT) { /* Input box selected */
171 edit = dlg_edit_string(input, &chr_offset, key, fkey, first);
172
173 if (edit) {
174 dlg_show_string(dialog, input, chr_offset, inputbox_attr,
175 box_y, box_x, box_width, password, first);
176 first = FALSE;
177 continue;
178 } else if (first) {
179 first = FALSE;
180 continue;
181 }
182 }
183
184 /* handle non-functionkeys */
185 if (!fkey && (code = dlg_char_to_button(key, buttons)) >= 0) {
186 dlg_del_window(dialog);
187 result = dlg_ok_buttoncode(code);
188 continue;
189 }
190
191 /* handle functionkeys */
192 if (fkey) {
193 switch (key) {
194 case DLGK_MOUSE('i'): /* mouse enter events */
195 state = 0;
196 /* FALLTHRU */
197 case DLGK_FIELD_PREV:
198 show_buttons = TRUE;
199 state = dlg_prev_ok_buttonindex(state, sTEXT);
200 break;
201 case DLGK_FIELD_NEXT:
202 show_buttons = TRUE;
203 state = dlg_next_ok_buttonindex(state, sTEXT);
204 break;
205 case ' ': /* FIXME: conflict with inputstr.c */
206 case DLGK_ENTER:
207 dlg_del_window(dialog);
208 result = (state >= 0) ? dlg_enter_buttoncode(state) : DLG_EXIT_OK;
209 break;
210 #ifdef KEY_RESIZE
211 case KEY_RESIZE:
212 /* reset data */
213 height = old_height;
214 width = old_width;
215 /* repaint */
216 dlg_clear();
217 dlg_del_window(dialog);
218 refresh();
219 dlg_mouse_free_regions();
220 goto retry;
221 #endif
222 default:
223 beep();
224 break;
225 }
226 } else {
227 beep();
228 }
229 }
230
231 dlg_unregister_window(editor);
232 dlg_del_window(dialog);
233 dlg_mouse_free_regions();
234 free(prompt);
235 return result;
236 }
237