1 /* 2 * dialog.h -- common declarations for all dialog modules 3 * 4 * AUTHOR: Savio Lam (lam836@cs.cuhk.hk) 5 * 6 * SPDX-License-Identifier: GPL-2.0+ 7 */ 8 9 #include <sys/types.h> 10 #include <fcntl.h> 11 #include <unistd.h> 12 #include <ctype.h> 13 #include <stdlib.h> 14 #include <string.h> 15 #include <stdbool.h> 16 17 #ifndef KBUILD_NO_NLS 18 # include <libintl.h> 19 #else 20 # define gettext(Msgid) ((const char *) (Msgid)) 21 #endif 22 23 #ifdef __sun__ 24 #define CURS_MACROS 25 #endif 26 #include CURSES_LOC 27 28 /* 29 * Colors in ncurses 1.9.9e do not work properly since foreground and 30 * background colors are OR'd rather than separately masked. This version 31 * of dialog was hacked to work with ncurses 1.9.9e, making it incompatible 32 * with standard curses. The simplest fix (to make this work with standard 33 * curses) uses the wbkgdset() function, not used in the original hack. 34 * Turn it off if we're building with 1.9.9e, since it just confuses things. 35 */ 36 #if defined(NCURSES_VERSION) && defined(_NEED_WRAP) && !defined(GCC_PRINTFLIKE) 37 #define OLD_NCURSES 1 38 #undef wbkgdset 39 #define wbkgdset(w,p) /*nothing */ 40 #else 41 #define OLD_NCURSES 0 42 #endif 43 44 #define TR(params) _tracef params 45 46 #define KEY_ESC 27 47 #define TAB 9 48 #define MAX_LEN 2048 49 #define BUF_SIZE (10*1024) 50 #define MIN(x,y) (x < y ? x : y) 51 #define MAX(x,y) (x > y ? x : y) 52 53 #ifndef ACS_ULCORNER 54 #define ACS_ULCORNER '+' 55 #endif 56 #ifndef ACS_LLCORNER 57 #define ACS_LLCORNER '+' 58 #endif 59 #ifndef ACS_URCORNER 60 #define ACS_URCORNER '+' 61 #endif 62 #ifndef ACS_LRCORNER 63 #define ACS_LRCORNER '+' 64 #endif 65 #ifndef ACS_HLINE 66 #define ACS_HLINE '-' 67 #endif 68 #ifndef ACS_VLINE 69 #define ACS_VLINE '|' 70 #endif 71 #ifndef ACS_LTEE 72 #define ACS_LTEE '+' 73 #endif 74 #ifndef ACS_RTEE 75 #define ACS_RTEE '+' 76 #endif 77 #ifndef ACS_UARROW 78 #define ACS_UARROW '^' 79 #endif 80 #ifndef ACS_DARROW 81 #define ACS_DARROW 'v' 82 #endif 83 84 /* error return codes */ 85 #define ERRDISPLAYTOOSMALL (KEY_MAX + 1) 86 87 /* 88 * Color definitions 89 */ 90 struct dialog_color { 91 chtype atr; /* Color attribute */ 92 int fg; /* foreground */ 93 int bg; /* background */ 94 int hl; /* highlight this item */ 95 }; 96 97 struct subtitle_list { 98 struct subtitle_list *next; 99 const char *text; 100 }; 101 102 struct dialog_info { 103 const char *backtitle; 104 struct subtitle_list *subtitles; 105 struct dialog_color screen; 106 struct dialog_color shadow; 107 struct dialog_color dialog; 108 struct dialog_color title; 109 struct dialog_color border; 110 struct dialog_color button_active; 111 struct dialog_color button_inactive; 112 struct dialog_color button_key_active; 113 struct dialog_color button_key_inactive; 114 struct dialog_color button_label_active; 115 struct dialog_color button_label_inactive; 116 struct dialog_color inputbox; 117 struct dialog_color inputbox_border; 118 struct dialog_color searchbox; 119 struct dialog_color searchbox_title; 120 struct dialog_color searchbox_border; 121 struct dialog_color position_indicator; 122 struct dialog_color menubox; 123 struct dialog_color menubox_border; 124 struct dialog_color item; 125 struct dialog_color item_selected; 126 struct dialog_color tag; 127 struct dialog_color tag_selected; 128 struct dialog_color tag_key; 129 struct dialog_color tag_key_selected; 130 struct dialog_color check; 131 struct dialog_color check_selected; 132 struct dialog_color uarrow; 133 struct dialog_color darrow; 134 }; 135 136 /* 137 * Global variables 138 */ 139 extern struct dialog_info dlg; 140 extern char dialog_input_result[]; 141 extern int saved_x, saved_y; /* Needed in signal handler in mconf.c */ 142 143 /* 144 * Function prototypes 145 */ 146 147 /* item list as used by checklist and menubox */ 148 void item_reset(void); 149 void item_make(const char *fmt, ...); 150 void item_add_str(const char *fmt, ...); 151 void item_set_tag(char tag); 152 void item_set_data(void *p); 153 void item_set_selected(int val); 154 int item_activate_selected(void); 155 void *item_data(void); 156 char item_tag(void); 157 158 /* item list manipulation for lxdialog use */ 159 #define MAXITEMSTR 200 160 struct dialog_item { 161 char str[MAXITEMSTR]; /* prompt displayed */ 162 char tag; 163 void *data; /* pointer to menu item - used by menubox+checklist */ 164 int selected; /* Set to 1 by dialog_*() function if selected. */ 165 }; 166 167 /* list of lialog_items */ 168 struct dialog_list { 169 struct dialog_item node; 170 struct dialog_list *next; 171 }; 172 173 extern struct dialog_list *item_cur; 174 extern struct dialog_list item_nil; 175 extern struct dialog_list *item_head; 176 177 int item_count(void); 178 void item_set(int n); 179 int item_n(void); 180 const char *item_str(void); 181 int item_is_selected(void); 182 int item_is_tag(char tag); 183 #define item_foreach() \ 184 for (item_cur = item_head ? item_head: item_cur; \ 185 item_cur && (item_cur != &item_nil); item_cur = item_cur->next) 186 187 /* generic key handlers */ 188 int on_key_esc(WINDOW *win); 189 int on_key_resize(void); 190 191 /* minimum (re)size values */ 192 #define CHECKLIST_HEIGTH_MIN 6 /* For dialog_checklist() */ 193 #define CHECKLIST_WIDTH_MIN 6 194 #define INPUTBOX_HEIGTH_MIN 2 /* For dialog_inputbox() */ 195 #define INPUTBOX_WIDTH_MIN 2 196 #define MENUBOX_HEIGTH_MIN 15 /* For dialog_menu() */ 197 #define MENUBOX_WIDTH_MIN 65 198 #define TEXTBOX_HEIGTH_MIN 8 /* For dialog_textbox() */ 199 #define TEXTBOX_WIDTH_MIN 8 200 #define YESNO_HEIGTH_MIN 4 /* For dialog_yesno() */ 201 #define YESNO_WIDTH_MIN 4 202 #define WINDOW_HEIGTH_MIN 19 /* For init_dialog() */ 203 #define WINDOW_WIDTH_MIN 80 204 205 int init_dialog(const char *backtitle); 206 void set_dialog_backtitle(const char *backtitle); 207 void set_dialog_subtitles(struct subtitle_list *subtitles); 208 void end_dialog(int x, int y); 209 void attr_clear(WINDOW * win, int height, int width, chtype attr); 210 void dialog_clear(void); 211 void print_autowrap(WINDOW * win, const char *prompt, int width, int y, int x); 212 void print_button(WINDOW * win, const char *label, int y, int x, int selected); 213 void print_title(WINDOW *dialog, const char *title, int width); 214 void draw_box(WINDOW * win, int y, int x, int height, int width, chtype box, 215 chtype border); 216 void draw_shadow(WINDOW * win, int y, int x, int height, int width); 217 218 int first_alpha(const char *string, const char *exempt); 219 int dialog_yesno(const char *title, const char *prompt, int height, int width); 220 int dialog_msgbox(const char *title, const char *prompt, int height, 221 int width, int pause); 222 223 224 typedef void (*update_text_fn)(char *buf, size_t start, size_t end, void 225 *_data); 226 int dialog_textbox(const char *title, char *tbuf, int initial_height, 227 int initial_width, int *keys, int *_vscroll, int *_hscroll, 228 update_text_fn update_text, void *data); 229 int dialog_menu(const char *title, const char *prompt, 230 const void *selected, int *s_scroll); 231 int dialog_checklist(const char *title, const char *prompt, int height, 232 int width, int list_height); 233 int dialog_inputbox(const char *title, const char *prompt, int height, 234 int width, const char *init); 235 236 /* 237 * This is the base for fictitious keys, which activate 238 * the buttons. 239 * 240 * Mouse-generated keys are the following: 241 * -- the first 32 are used as numbers, in addition to '0'-'9' 242 * -- the lowercase are used to signal mouse-enter events (M_EVENT + 'o') 243 * -- uppercase chars are used to invoke the button (M_EVENT + 'O') 244 */ 245 #define M_EVENT (KEY_MAX+1) 246