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 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