1/* 2 * $Id: inputbox.c,v 1.76 2012/12/03 11:46:50 tom Exp $ 3 * 4 * inputbox.c -- implements the input box 5 * 6 * Copyright 2000-2011,2012 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 */ 43int 44dialog_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 int edited; 77 char *input; 78 WINDOW *dialog; 79 WINDOW *editor; 80 char *prompt = dlg_strclone(cprompt); 81 const char **buttons = dlg_ok_labels(); 82 83 dlg_does_output(); 84 85 dlg_tab_correct_str(prompt); 86 87 /* Set up the initial value */ 88 input = dlg_set_result(init); 89 edited = FALSE; 90 91#ifdef KEY_RESIZE 92 retry: 93#endif 94 show_buttons = TRUE; 95 state = dialog_vars.default_button >= 0 ? dlg_default_button() : sTEXT; 96 first = (state == sTEXT); 97 key = fkey = 0; 98 99 if (init != NULL) { 100 dlg_auto_size(title, prompt, &height, &width, 5, 101 MIN(MAX(dlg_count_columns(init) + 7, 26), 102 SCOLS - (dialog_vars.begin_set ? 103 dialog_vars.begin_x : 0))); 104 chr_offset = (int) strlen(init); 105 } else { 106 dlg_auto_size(title, prompt, &height, &width, 5, 26); 107 } 108 dlg_button_layout(buttons, &width); 109 dlg_print_size(height, width); 110 dlg_ctl_size(height, width); 111 112 xorg = dlg_box_x_ordinate(width); 113 yorg = dlg_box_y_ordinate(height); 114 115 dialog = dlg_new_window(height, width, yorg, xorg); 116 dlg_register_window(dialog, "inputbox", binding); 117 dlg_register_buttons(dialog, "inputbox", buttons); 118 119 dlg_mouse_setbase(xorg, yorg); 120 121 dlg_draw_box2(dialog, 0, 0, height, width, dialog_attr, border_attr, border2_attr); 122 dlg_draw_bottom_box2(dialog, border_attr, border2_attr, dialog_attr); 123 dlg_draw_title(dialog, title); 124 125 (void) wattrset(dialog, dialog_attr); 126 dlg_draw_helpline(dialog, FALSE); 127 dlg_print_autowrap(dialog, prompt, height, width); 128 129 /* Draw the input field box */ 130 box_width = width - 6; 131 getyx(dialog, y, x); 132 (void) x; 133 box_y = y + 2; 134 box_x = (width - box_width) / 2; 135 dlg_mouse_mkregion(y + 1, box_x - 1, 3, box_width + 2, 'i'); 136 dlg_draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2, 137 border_attr, border2_attr); 138 139 /* Make a window for the input-field, to associate bindings */ 140 editor = dlg_sub_window(dialog, 1, box_width, yorg + box_y, xorg + box_x); 141 dlg_register_window(editor, "inputbox2", binding2); 142 143 if (*input != '\0') { 144 dlg_show_string(editor, input, chr_offset, inputbox_attr, 145 0, 0, box_width, password, first); 146 wsyncup(editor); 147 wcursyncup(editor); 148 } 149 while (result == DLG_EXIT_UNKNOWN) { 150 int edit = 0; 151 152 /* 153 * The last field drawn determines where the cursor is shown: 154 */ 155 if (show_buttons) { 156 show_buttons = FALSE; 157 col_offset = dlg_edit_offset(input, chr_offset, box_width); 158 (void) wmove(dialog, box_y, box_x + col_offset); 159 dlg_draw_buttons(dialog, height - 2, 0, buttons, state, FALSE, width); 160 } 161 162 if (!first) { 163 if (*input != '\0' && !edited) { 164 dlg_show_string(editor, input, chr_offset, inputbox_attr, 165 0, 0, box_width, password, first); 166 wmove(editor, 0, chr_offset); 167 wsyncup(editor); 168 wcursyncup(editor); 169 } 170 key = dlg_mouse_wgetch((state == sTEXT) ? editor : dialog, &fkey); 171 if (dlg_result_key(key, fkey, &result)) 172 break; 173 } 174 175 /* 176 * Handle mouse clicks first, since we want to know if this is a button, 177 * or something that dlg_edit_string() should handle. 178 */ 179 if (fkey 180 && is_DLGK_MOUSE(key) 181 && (code = dlg_ok_buttoncode(key - M_EVENT)) >= 0) { 182 result = code; 183 continue; 184 } 185 186 if (state == sTEXT) { /* Input box selected */ 187 edit = dlg_edit_string(input, &chr_offset, key, fkey, first); 188 189 if (edit) { 190 dlg_show_string(editor, input, chr_offset, inputbox_attr, 191 0, 0, box_width, password, first); 192 wsyncup(editor); 193 wcursyncup(editor); 194 first = FALSE; 195 edited = TRUE; 196 continue; 197 } else if (first) { 198 first = FALSE; 199 continue; 200 } 201 } 202 203 /* handle non-functionkeys */ 204 if (!fkey && (code = dlg_char_to_button(key, buttons)) >= 0) { 205 dlg_del_window(dialog); 206 result = dlg_ok_buttoncode(code); 207 continue; 208 } 209 210 /* handle functionkeys */ 211 if (fkey) { 212 switch (key) { 213 case DLGK_MOUSE('i'): /* mouse enter events */ 214 state = 0; 215 /* FALLTHRU */ 216 case DLGK_FIELD_PREV: 217 show_buttons = TRUE; 218 state = dlg_prev_ok_buttonindex(state, sTEXT); 219 break; 220 case DLGK_FIELD_NEXT: 221 show_buttons = TRUE; 222 state = dlg_next_ok_buttonindex(state, sTEXT); 223 break; 224 case ' ': /* FIXME: conflict with inputstr.c */ 225 case DLGK_ENTER: 226 dlg_del_window(dialog); 227 result = (state >= 0) ? dlg_enter_buttoncode(state) : DLG_EXIT_OK; 228 break; 229#ifdef KEY_RESIZE 230 case KEY_RESIZE: 231 /* reset data */ 232 height = old_height; 233 width = old_width; 234 /* repaint */ 235 dlg_clear(); 236 dlg_del_window(dialog); 237 refresh(); 238 dlg_mouse_free_regions(); 239 goto retry; 240#endif 241 default: 242 beep(); 243 break; 244 } 245 } else { 246 beep(); 247 } 248 } 249 250 dlg_unregister_window(editor); 251 dlg_del_window(dialog); 252 dlg_mouse_free_regions(); 253 free(prompt); 254 return result; 255} 256