minimal terminal implementation

2 files changed, 123 insertions, 0 deletions

diff --git a/gterm.c b/gterm.c
new file mode 100644
index 0000000..bcd0c88
--- /dev/null
+++ b/gterm.c
@@ -0,0 +1,106 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <pwd.h>
+
+#include <sys/types.h>
+
+#include <gtk/gtk.h>
+#include <vte/vte.h>
+
+typedef struct gterm {
+    GtkWidget *window;
+    GtkWidget *terminal;
+    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_window_destroy(GtkWidget *widget, gpointer data)
+{
+    gtk_main_quit();
+}
+
+static gterm *gterm_new(void)
+{
+    gterm *gt = g_new0(gterm, 1);
+
+    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);
+
+    gtk_container_add(GTK_CONTAINER(gt->window), gt->terminal);
+    gtk_widget_show_all(gt->window);
+    return gt;
+}
+
+int main(int argc, char *argv[])
+{
+    gterm *gt;
+
+    gtk_init(&argc, &argv);
+
+    gt = gterm_new();
+    gterm_spawn_shell(gt);
+
+    gtk_main();
+    return gt->exit_code;
+}
diff --git a/meson.build b/meson.build
new file mode 100644
index 0000000..96f19f0
--- /dev/null
+++ b/meson.build
@@ -0,0 +1,17 @@
+project('gterm', 'c', default_options : [ 'c_std=c99' ] )
+
+# tweak warnings
+add_global_arguments('-D_POSIX_SOURCE=1', language : 'c')
+add_global_arguments('-D_GNU_SOURCE=1', language : 'c')
+
+# pkg-config deps
+gtk_dep = dependency('gtk+-3.0')
+vte_dep = dependency('vte-2.91')
+
+executable('gterm',
+           sources      : [ 'gterm.c' ],
+           dependencies : [ gtk_dep, vte_dep ],
+           install      : true)
+
+#install_man('gterm.1')
+