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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdint.h>
#include <stdbool.h>
#include <pwd.h>
#include <sys/types.h>
#include <gtk/gtk.h>
#include <vte/vte.h>
#define ARRAY_SIZE(_x) (sizeof(_x)/sizeof(_x[0]))
/* ------------------------------------------------------------------------ */
#define GTERM_CFG_FILENAME ".config/gterm.conf"
#define GTERM_CFG_GROUP_DEFAULT "default"
#define GTERM_CFG_GROUP_CMDLINE "_cmdline_"
#define GTERM_CFG_KEY_FONT_FACE "faceName"
#define GTERM_CFG_KEY_FONT_SIZE "faceSize"
typedef struct gterm_opt {
char *opt;
char *key;
bool is_bool;
} gterm_opt;
static const gterm_opt gterm_opts[] = {
{ .opt = "fa", .key = GTERM_CFG_KEY_FONT_FACE },
{ .opt = "fs", .key = GTERM_CFG_KEY_FONT_SIZE },
};
static const gterm_opt *gterm_opt_find(char *arg)
{
const gterm_opt *opt = NULL;
int i;
if (arg[0] != '-' && arg[0] != '+')
return NULL;
for (i = 0; i < ARRAY_SIZE(gterm_opts); i++) {
if (strcmp(gterm_opts[i].opt, arg + 1) == 0) {
opt = gterm_opts + i;
break;
}
}
if (!opt)
return NULL;
if (arg[0] == '+' && !opt->is_bool)
return NULL;
return opt;
}
static void gterm_cfg_set(GKeyFile *cfg, char *key, char *value)
{
g_key_file_set_string(cfg, GTERM_CFG_GROUP_CMDLINE, key, value);
}
static char *gterm_cfg_get(GKeyFile *cfg, char *key)
{
char *value;
value = g_key_file_get_string(cfg, GTERM_CFG_GROUP_CMDLINE, key, NULL);
if (value)
return value;
value = g_key_file_get_string(cfg, GTERM_CFG_GROUP_DEFAULT, key, NULL);
if (value)
return value;
return NULL;
}
/* ------------------------------------------------------------------------ */
typedef struct gterm {
GtkWidget *window;
GtkWidget *terminal;
GKeyFile *cfg;
GPid pid;
gint exit_code;
} gterm;
static void gterm_spawn_cb(VteTerminal *terminal, GPid pid,
GError *error, gpointer user_data)
{
gterm *gt = user_data;
if (error) {
fprintf(stderr, "ERROR: %s\n", error->message);
gt->exit_code = 1;
gtk_main_quit();
} else {
gt->pid = pid;
}
}
static void gterm_spawn(gterm *gt, char *argv[])
{
vte_terminal_spawn_async(VTE_TERMINAL(gt->terminal),
VTE_PTY_DEFAULT,
NULL,
argv,
NULL,
G_SPAWN_SEARCH_PATH,
NULL,
NULL,
NULL,
-1,
NULL,
gterm_spawn_cb,
gt);
}
static void gterm_spawn_shell(gterm *gt)
{
struct passwd *pwent;
char *argv[2];
pwent = getpwent();
argv[0] = strdup(pwent->pw_shell);
argv[1] = NULL;
gterm_spawn(gt, argv);
}
static void gterm_vte_child_exited(VteTerminal *vteterminal,
gint status,
gpointer user_data)
{
gterm *gt = user_data;
if (WIFEXITED(status))
gt->exit_code = WEXITSTATUS(status);
if (WIFSIGNALED(status))
gt->exit_code = 1;
gtk_main_quit();
}
static void gterm_vte_configure(gterm *gt)
{
char *fontdesc;
char *fontname;
char *fontsize;
fontname = gterm_cfg_get(gt->cfg, GTERM_CFG_KEY_FONT_FACE);
fontsize = gterm_cfg_get(gt->cfg, GTERM_CFG_KEY_FONT_SIZE);
if (fontname && fontsize) {
fontdesc = g_strdup_printf("%s %s", fontname, fontsize);
} else if (fontname) {
fontdesc = g_strdup_printf("%s", fontname);
} else if (fontsize) {
fontdesc = g_strdup_printf("%s", fontsize);
} else {
fontdesc = NULL;
}
if (fontdesc) {
PangoFontDescription *font;
font = pango_font_description_from_string(fontdesc);
vte_terminal_set_font(VTE_TERMINAL(gt->terminal), font);
g_free(fontdesc);
}
}
static void gterm_window_destroy(GtkWidget *widget, gpointer data)
{
gtk_main_quit();
}
static gterm *gterm_new(GKeyFile *cfg)
{
gterm *gt = g_new0(gterm, 1);
gt->cfg = cfg;
gt->window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
g_signal_connect(G_OBJECT(gt->window), "destroy",
G_CALLBACK(gterm_window_destroy), gt);
gt->terminal = vte_terminal_new();
g_signal_connect(G_OBJECT(gt->terminal), "child-exited",
G_CALLBACK(gterm_vte_child_exited), gt);
gterm_vte_configure(gt);
gtk_container_add(GTK_CONTAINER(gt->window), gt->terminal);
gtk_widget_show_all(gt->window);
return gt;
}
int main(int argc, char *argv[])
{
char *filename;
GKeyFile *cfg;
gterm *gt;
const gterm_opt *opt;
int i, eopt = 0;
gtk_init(&argc, &argv);
cfg = g_key_file_new();
filename = g_strdup_printf("%s/%s", getenv("HOME"), GTERM_CFG_FILENAME);
g_key_file_load_from_file(cfg, filename, G_KEY_FILE_NONE, NULL);
g_free(filename);
for (i = 1; i < argc;) {
if (strcmp(argv[i], "-e") == 0) {
eopt = i + 1;
break;
}
opt = gterm_opt_find(argv[i]);
if (!opt) {
fprintf(stderr, "unknown option: %s\n", argv[i]);
exit(1);
}
if (opt->is_bool) {
if (argv[i][0] == '-')
gterm_cfg_set(cfg, opt->key, "true");
else
gterm_cfg_set(cfg, opt->key, "false");
i++;
} else {
if (i + 1 == argc) {
fprintf(stderr, "missing argument for: %s\n", argv[i]);
exit(1);
}
gterm_cfg_set(cfg, opt->key, argv[i+1]);
i += 2;
}
}
gt = gterm_new(cfg);
if (eopt) {
gterm_spawn(gt, argv + eopt);
} else {
gterm_spawn_shell(gt);
}
gtk_main();
return gt->exit_code;
}
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