1 /* 2 * $Id: inputbox.c,v 1.64 2010/01/19 01:03:39 tom Exp $ 3 * 4 * inputbox.c -- implements the input box 5 * 6 * Copyright 2000-2009,2010 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 ENTERKEY_BINDINGS, 50 NAVIGATE_BINDINGS, 51 END_KEYS_BINDING 52 }; 53 static DLG_KEYS_BINDING binding2[] = { 54 INPUTSTR_BINDINGS, 55 ENTERKEY_BINDINGS, 56 NAVIGATE_BINDINGS, 57 END_KEYS_BINDING 58 }; 59 /* *INDENT-ON* */ 60 61 #ifdef KEY_RESIZE 62 int old_height = height; 63 int old_width = width; 64 #endif 65 int xorg, yorg; 66 int x, y, box_y, box_x, box_width; 67 int show_buttons; 68 int col_offset = 0; 69 int chr_offset = 0; 70 int key, fkey, code; 71 int result = DLG_EXIT_UNKNOWN; 72 int state; 73 int first; 74 char *input; 75 WINDOW *dialog; 76 WINDOW *editor; 77 char *prompt = dlg_strclone(cprompt); 78 const char **buttons = dlg_ok_labels(); 79 80 dlg_does_output(); 81 82 dlg_tab_correct_str(prompt); 83 84 /* Set up the initial value */ 85 input = dlg_set_result(init); 86 87 #ifdef KEY_RESIZE 88 retry: 89 #endif 90 show_buttons = TRUE; 91 state = dialog_vars.defaultno ? dlg_defaultno_button() : sTEXT; 92 first = (state == sTEXT); 93 key = fkey = 0; 94 95 if (init != NULL) { 96 dlg_auto_size(title, prompt, &height, &width, 5, 97 MIN(MAX(dlg_count_columns(init) + 7, 26), 98 SCOLS - (dialog_vars.begin_set ? 99 dialog_vars.begin_x : 0))); 100 chr_offset = (int) strlen(init); 101 } else { 102 dlg_auto_size(title, prompt, &height, &width, 5, 26); 103 } 104 dlg_button_layout(buttons, &width); 105 dlg_print_size(height, width); 106 dlg_ctl_size(height, width); 107 108 xorg = dlg_box_x_ordinate(width); 109 yorg = dlg_box_y_ordinate(height); 110 111 dialog = dlg_new_window(height, width, yorg, xorg); 112 dlg_register_window(dialog, "inputbox", binding); 113 dlg_register_buttons(dialog, "inputbox", buttons); 114 115 dlg_mouse_setbase(xorg, yorg); 116 117 dlg_draw_box(dialog, 0, 0, height, width, dialog_attr, border_attr); 118 dlg_draw_bottom_box(dialog); 119 dlg_draw_title(dialog, title); 120 121 wattrset(dialog, dialog_attr); 122 dlg_print_autowrap(dialog, prompt, height, width); 123 124 /* Draw the input field box */ 125 box_width = width - 6; 126 getyx(dialog, y, x); 127 box_y = y + 2; 128 box_x = (width - box_width) / 2; 129 dlg_mouse_mkregion(y + 1, box_x - 1, 3, box_width + 2, 'i'); 130 dlg_draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2, 131 border_attr, dialog_attr); 132 133 /* Make a window for the input-field, to associate bindings */ 134 editor = dlg_sub_window(dialog, 1, box_width, yorg + box_y, xorg + box_x); 135 dlg_register_window(editor, "inputbox", binding2); 136 137 while (result == DLG_EXIT_UNKNOWN) { 138 int edit = 0; 139 140 /* 141 * The last field drawn determines where the cursor is shown: 142 */ 143 if (show_buttons) { 144 show_buttons = FALSE; 145 col_offset = dlg_edit_offset(input, chr_offset, box_width); 146 (void) wmove(dialog, box_y, box_x + col_offset); 147 dlg_draw_buttons(dialog, height - 2, 0, buttons, state, FALSE, width); 148 } 149 150 if (!first) { 151 key = dlg_mouse_wgetch((state == sTEXT) ? editor : dialog, &fkey); 152 if (dlg_result_key(key, fkey, &result)) 153 break; 154 } 155 156 /* 157 * Handle mouse clicks first, since we want to know if this is a button, 158 * or something that dlg_edit_string() should handle. 159 */ 160 if (fkey 161 && is_DLGK_MOUSE(key) 162 && (code = dlg_ok_buttoncode(key - M_EVENT)) >= 0) { 163 result = code; 164 continue; 165 } 166 167 if (state == sTEXT) { /* Input box selected */ 168 edit = dlg_edit_string(input, &chr_offset, key, fkey, first); 169 170 if (edit) { 171 dlg_show_string(dialog, input, chr_offset, inputbox_attr, 172 box_y, box_x, box_width, password, first); 173 first = FALSE; 174 continue; 175 } else if (first) { 176 first = FALSE; 177 continue; 178 } 179 } 180 181 /* handle non-functionkeys */ 182 if (!fkey && (code = dlg_char_to_button(key, buttons)) >= 0) { 183 dlg_del_window(dialog); 184 result = dlg_ok_buttoncode(code); 185 continue; 186 } 187 188 /* handle functionkeys */ 189 if (fkey) { 190 switch (key) { 191 case DLGK_MOUSE('i'): /* mouse enter events */ 192 state = 0; 193 /* FALLTHRU */ 194 case DLGK_FIELD_PREV: 195 show_buttons = TRUE; 196 state = dlg_prev_ok_buttonindex(state, sTEXT); 197 break; 198 case DLGK_FIELD_NEXT: 199 show_buttons = TRUE; 200 state = dlg_next_ok_buttonindex(state, sTEXT); 201 break; 202 case ' ': /* FIXME: conflict with inputstr.c */ 203 case DLGK_ENTER: 204 dlg_del_window(dialog); 205 result = (state >= 0) ? dlg_ok_buttoncode(state) : DLG_EXIT_OK; 206 break; 207 #ifdef KEY_RESIZE 208 case KEY_RESIZE: 209 /* reset data */ 210 height = old_height; 211 width = old_width; 212 /* repaint */ 213 dlg_clear(); 214 dlg_del_window(dialog); 215 refresh(); 216 dlg_mouse_free_regions(); 217 goto retry; 218 #endif 219 default: 220 beep(); 221 break; 222 } 223 } else { 224 beep(); 225 } 226 } 227 228 dlg_unregister_window(editor); 229 dlg_del_window(dialog); 230 dlg_mouse_free_regions(); 231 free(prompt); 232 return result; 233 } 234