mirror of https://github.com/ericonr/ef.git
134 lines
2.7 KiB
C
134 lines
2.7 KiB
C
#define _XOPEN_SOURCE 700
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#include <stdlib.h>
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#include <signal.h>
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#include <stdio.h>
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#include <unistd.h>
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#include <stdbool.h>
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#include <string.h>
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#include <curses.h>
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#include "string-array.h"
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#include "util.h"
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static void endwin_void(void)
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{
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endwin();
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}
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static const char *final_name;
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static FILE* stdout_save;
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static void print_name(void)
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{
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if (stdout_save && final_name) fputs(final_name, stdout_save);
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}
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static void finish(int sig)
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{
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(void)sig;
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quick_exit(1);
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}
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int main()
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{
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const char delim = '\n';
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struct str_array entries = { 0 };
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read_entries_from_stream(&entries, delim, stdin);
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int tmp_fd;
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/* use stderr for input instead of stdin, since we get the entries from stdin */
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if (dup2(STDERR_FILENO, STDIN_FILENO) != STDIN_FILENO ||
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/* use stderr for output as well, since we should only print the result to stdout */
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(tmp_fd = dup(STDOUT_FILENO)) < 0 ||
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(stdout_save = fdopen(tmp_fd, "w")) == NULL ||
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dup2(STDERR_FILENO, STDOUT_FILENO) != STDOUT_FILENO) {
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perror("fd dance");
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exit(1);
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}
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atexit(print_name);
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signal(SIGINT, finish);
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atexit(endwin_void);
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at_quick_exit(endwin_void);
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/* curses initialization */
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initscr();
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/* terminal configuration */
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nonl();
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cbreak();
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noecho();
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if (has_colors()) {
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start_color();
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init_pair(1, COLOR_GREEN, COLOR_BLACK);
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// red,green,yellow,blue,cyan,magenta,white
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}
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/* noop function - should use the windows from below */
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attrset(COLOR_PAIR(1));
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WINDOW *list = newwin(LINES - 1, 0, 0, 0);
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WINDOW *prompt = newwin(1, 0, LINES - 1, 0);
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if (!list || !prompt) {
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perror("newwin");
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exit(1);
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}
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keypad(prompt, TRUE);
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keypad(list, TRUE);
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/* inital dump of list
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* TODO: needs scroll support */
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for (size_t i = 0; i < entries.n; i++) {
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mvwaddstr(list, i, 0, get_entry(&entries, i));
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}
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wrefresh(list);
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mvwaddstr(prompt, 0, 0, "> ");
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wrefresh(prompt);
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/* limited name size
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* TODO: use dynamic string and str_array so we can search on a group of tokens */
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char name[1024] = { 0 };
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size_t n = 0;
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while (n < sizeof name) {
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int c = wgetch(prompt);
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switch (c) {
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case KEY_ENTER:
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case '\r':
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/* since we are using nonl above, only capture '\r' itself
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* TODO: actually store the entry name */
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final_name = name;
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exit(0);
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case KEY_BACKSPACE:
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case 127:
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name[n] = 0;
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if (n) n--;
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break;
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case KEY_DL:
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name[0] = 0;
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n = 0;
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break;
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default:
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name[n] = c;
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n++;
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break;
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}
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werase(prompt);
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mvwaddstr(prompt, 0, 0, "> ");
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waddstr(prompt, name);
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wrefresh(prompt);
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filter_entries(&entries, name);
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werase(list);
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int line = 0;
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for (size_t i = 0; i < entries.n; i++) {
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const char *e = get_entry_match(&entries, i);
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if (e) mvwaddstr(list, line++, 0, e);
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}
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wrefresh(list);
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}
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return 0;
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}
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