This change adds the display(1) graphical user interface and desktop environment with basic windowing support and the graphical terminal(1) emulator along with integrations in chkblayout(1), chvideomode(1), sysinstall(8), sysupgrade(8), as well as the games and ports. Adopt the Aurora procedural wallpaper in display(1) and login(8). Remove the obsolete dispd. Juhani contributed keyboard and video mode APIs to the display protocol and other miscellaneous changes. dzwdz contributed the initial functioning window buttons, improved title bar, window tiling, and minor bug fixes Co-authored-by: Juhani Krekelä <juhani@krekelä.fi> Co-authored-by: dzwdz <kg67199@gmail.com>
383 lines
9.2 KiB
C
383 lines
9.2 KiB
C
/*
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* Copyright (c) 2015, 2016, 2017, 2023 Jonas 'Sortie' Termansen.
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* Copyright (c) 2023 Juhani 'nortti' Krekelä.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* interactive.c
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* Interactive utility functions.
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*/
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#include <sys/display.h>
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#include <sys/ioctl.h>
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#include <sys/termmode.h>
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#include <sys/types.h>
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#include <ctype.h>
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#include <display.h>
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#include <err.h>
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#include <errno.h>
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#include <limits.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <termios.h>
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#include <wchar.h>
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#include <display.h>
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#include "autoconf.h"
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#include "execute.h"
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#include "interactive.h"
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#define REQUEST_DISPLAYS_ID 0
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#define REQUEST_DISPLAY_MODE_ID 1
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static uint32_t displays_count;
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static bool displays_count_received;
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static struct dispmsg_crtc_mode display_mode;
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static int request_display_mode_error;
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static bool display_mode_received;
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void shlvl(void)
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{
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long shlvl = 0;
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if ( getenv("SHLVL") && (shlvl = atol(getenv("SHLVL"))) < 0 )
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shlvl = 0;
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if ( shlvl < LONG_MAX )
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shlvl++;
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char shlvl_string[sizeof(long) * 3];
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snprintf(shlvl_string, sizeof(shlvl_string), "%li", shlvl);
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setenv("SHLVL", shlvl_string, 1);
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}
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void text(const char* str)
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{
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fflush(stdout);
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struct winsize ws;
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if ( tcgetwinsize(1, &ws) < 0 )
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err(2, "tcgetwinsize");
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size_t columns = ws.ws_col;
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size_t column = 0;
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struct wincurpos wcp;
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if ( tcgetwincurpos(1, &wcp) == 0 )
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column = wcp.wcp_col;
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bool blank = false;
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while ( str[0] )
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{
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if ( str[0] == '\n' )
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{
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putchar('\n');
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blank = false;
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column = 0;
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str++;
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continue;
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}
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else if ( isblank((unsigned char) str[0]) )
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{
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blank = true;
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str++;
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continue;
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}
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size_t word_length = 0;
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size_t word_columns = 0;
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mbstate_t ps = { 0 };
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while ( str[word_length] &&
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str[word_length] != '\n' &&
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!isblank((unsigned char) str[word_length]) )
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{
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wchar_t wc;
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size_t amount = mbrtowc(&wc, str + word_length, SIZE_MAX, &ps);
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if ( amount == (size_t) -2 )
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break;
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if ( amount == (size_t) -1 )
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{
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memset(&ps, 0, sizeof(ps));
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amount = 1;
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}
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if ( amount == (size_t) 0 )
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break;
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word_length += amount;
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int width = wcwidth(wc);
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if ( width < 0 )
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continue;
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word_columns += width;
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}
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if ( (column && blank ? 1 : 0) + word_columns <= columns - column )
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{
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if ( column && blank )
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{
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putchar(' ');
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column++;
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}
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blank = false;
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fwrite(str, 1, word_length, stdout);
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column += word_columns;
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if ( column == columns )
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column = 0;
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}
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else
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{
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if ( column != 0 && column != columns )
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putchar('\n');
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column = 0;
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blank = false;
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fwrite(str, 1, word_length, stdout);
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column += word_columns;
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column %= columns;
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}
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str += word_length;
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}
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fflush(stdout);
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}
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void textf(const char* format, ...)
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{
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va_list ap;
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va_start(ap, format);
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char* str;
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int len = vasprintf(&str, format, ap);
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va_end(ap);
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if ( len < 0 )
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{
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vprintf(format, ap);
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return;
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}
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text(str);
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free(str);
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}
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void prompt(char* buffer,
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size_t buffer_size,
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const char* autoconf_name,
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const char* question,
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const char* answer)
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{
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promptx(buffer, buffer_size, autoconf_name, question, answer, false);
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}
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void promptx(char* buffer,
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size_t buffer_size,
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const char* autoconf_name,
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const char* question,
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const char* answer,
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bool catch_if_shell)
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{
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char* autoconf_answer = autoconf_eval(autoconf_name);
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while ( true )
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{
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printf("\e[1m");
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fflush(stdout);
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text(question);
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if ( answer )
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printf(" [%s] ", answer);
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else
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printf(" ");
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fflush(stdout);
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const char* accept_defaults = autoconf_get("accept_defaults");
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const char* automatic_answer = NULL;
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if ( autoconf_answer )
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{
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automatic_answer = autoconf_answer;
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if ( !automatic_answer[0] )
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automatic_answer = answer;
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}
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else if ( accept_defaults && !strcasecmp(accept_defaults, "yes") )
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automatic_answer = answer;
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if ( automatic_answer )
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{
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printf("\e[93m");
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printf("%s\n", automatic_answer);
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printf("\e[m");
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fflush(stdout);
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strlcpy(buffer, automatic_answer, buffer_size);
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free(autoconf_answer);
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return;
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}
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fgets(buffer, buffer_size, stdin);
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printf("\e[22m");
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fflush(stdout);
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size_t buffer_length = strlen(buffer);
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if ( buffer_length && buffer[buffer_length-1] == '\n' )
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buffer[--buffer_length] = '\0';
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while ( buffer_length && buffer[buffer_length-1] == ' ' )
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buffer[--buffer_length] = '\0';
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if ( !strcmp(buffer, "") )
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{
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if ( !answer )
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continue;
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strlcpy(buffer, answer, buffer_size);
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}
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if ( !strcmp(buffer, "!") )
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{
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printf("Type 'exit' to return to the %s.\n", prompt_man_page);
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fflush(stdout);
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execute((const char*[]) { "sh", NULL }, "f");
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if ( catch_if_shell )
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break;
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continue;
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}
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if ( !strcmp(buffer, "!man") )
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{
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execute((const char*[]) { "man", prompt_man_section,
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prompt_man_page, NULL }, "f");
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continue;
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}
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break;
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}
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free(autoconf_answer);
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}
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void password(char* buffer,
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size_t buffer_size,
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const char* question)
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{
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unsigned int termmode;
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gettermmode(0, &termmode);
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settermmode(0, termmode & ~TERMMODE_ECHO);
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printf("\e[1m");
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fflush(stdout);
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text(question);
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printf(" ");
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fflush(stdout);
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fflush(stdin);
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// TODO: This may leave a copy of the password in the stdio buffer.
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fgets(buffer, buffer_size, stdin);
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fflush(stdin);
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printf("\e[22m\n");
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size_t buffer_length = strlen(buffer);
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if ( buffer_length && buffer[buffer_length-1] == '\n' )
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buffer[--buffer_length] = '\0';
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settermmode(0, termmode);
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}
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static bool has_program(const char* program)
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{
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return execute((const char*[]) { "which", "--", program, NULL }, "q") == 0;
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}
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bool missing_program(const char* program)
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{
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if ( has_program(program) )
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return false;
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warnx("%s: Program is absent", program);
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return true;
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}
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static void on_displays(void* ctx, uint32_t id, uint32_t displays)
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{
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(void) ctx;
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if ( id != REQUEST_DISPLAYS_ID )
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return;
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displays_count = displays;
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displays_count_received = true;
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}
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static void on_display_mode(void* ctx, uint32_t id,
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struct dispmsg_crtc_mode mode)
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{
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(void) ctx;
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if ( id != REQUEST_DISPLAY_MODE_ID )
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return;
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display_mode = mode;
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request_display_mode_error = 0;
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display_mode_received = true;
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}
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static void on_ack(void* ctx, uint32_t id, int32_t error)
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{
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(void) ctx;
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if ( id != REQUEST_DISPLAY_MODE_ID )
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return;
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if ( error )
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{
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request_display_mode_error = error;
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display_mode_received = true;
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}
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}
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bool get_video_mode(struct dispmsg_crtc_mode* mode)
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{
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if ( getenv("DISPLAY_SOCKET") )
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{
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struct display_connection* connection = display_connect_default();
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if ( !connection )
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return false;
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struct display_event_handlers handlers = {0};
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handlers.displays_handler = on_displays;
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handlers.display_mode_handler = on_display_mode;
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handlers.ack_handler = on_ack;
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display_request_displays(connection, REQUEST_DISPLAYS_ID);
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displays_count_received = false;
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while ( !displays_count_received )
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display_wait_event(connection, &handlers);
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if ( displays_count < 1 )
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{
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display_disconnect(connection);
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return false;
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}
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// TODO: Multimonitor support.
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display_request_display_mode(connection, REQUEST_DISPLAY_MODE_ID, 0);
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display_mode_received = false;
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while ( !display_mode_received )
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display_wait_event(connection, &handlers);
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display_disconnect(connection);
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if ( request_display_mode_error )
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return false;
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*mode = display_mode;
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return true;
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}
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struct tiocgdisplay display;
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struct tiocgdisplays gdisplays;
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memset(&gdisplays, 0, sizeof(gdisplays));
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gdisplays.count = 1;
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gdisplays.displays = &display;
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struct dispmsg_get_driver_name dgdn = { 0 };
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if ( ioctl(1, TIOCGDISPLAYS, &gdisplays) < 0 || gdisplays.count == 0 )
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return false;
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dgdn.device = display.device;
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dgdn.msgid = DISPMSG_GET_DRIVER_NAME;
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dgdn.device = display.device;
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dgdn.driver_index = 0;
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dgdn.name.byte_size = 0;
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dgdn.name.str = NULL;
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if ( dispmsg_issue(&dgdn, sizeof(dgdn)) < 0 && errno == ENODEV )
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return false;
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struct dispmsg_get_crtc_mode get_mode;
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memset(&get_mode, 0, sizeof(get_mode));
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get_mode.msgid = DISPMSG_GET_CRTC_MODE;
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get_mode.device = display.device;
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get_mode.connector = display.connector;
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// TODO: Still allow setting the video mode if none was already set.
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if ( dispmsg_issue(&get_mode, sizeof(get_mode)) < 0 )
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return false;
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*mode = get_mode.mode;
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return true;
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}
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void gui_shutdown(int code)
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{
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if ( getenv("DISPLAY_SOCKET") )
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{
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struct display_connection* connection = display_connect_default();
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if ( connection )
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display_shutdown(connection, code);
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else
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warn("display_connect_default");
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}
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}
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