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#include <gtk/gtk.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <unistd.h>
GtkWidget *m_layout;
static const char *m_kbd_path = "/usr/local/bin/matchbox-keyboard";
static const char *m_kbd_str;
static guint m_kbd_xid;
static guint m_kbd_pid;
void
cleanup_children(int s)
{
kill(-getpid(), 15); /* kill every one in our process group */
exit(0);
}
void
install_signal_handlers(void)
{
signal (SIGCHLD, SIG_IGN); /* kernel can deal with zombies */
signal (SIGINT, cleanup_children);
signal (SIGQUIT, cleanup_children);
signal (SIGTERM, cleanup_children);
}
unsigned long
launch_keyboard(void)
{
int i = 0, fd[2];
int stdout_pipe[2];
int stdin_pipe[2];
char buf[256], c;
size_t n;
unsigned long result;
printf("Launching keyboard from: %s\r\n",m_kbd_path);
pipe (stdout_pipe);
pipe (stdin_pipe);
switch (fork ())
{
case 0:
{
/* Close the Child process' STDOUT */
close(1);
dup(stdout_pipe[1]);
close(stdout_pipe[0]);
close(stdout_pipe[1]);
execlp ("/bin/sh", "sh", "-c", "matchbox-keyboard --xid", NULL);
}
case -1:
perror ("### Failed to launch 'matchbox-keyboard --xid', is it installed? ### ");
exit(1);
}
/* Parent */
/* Close the write end of STDOUT */
close(stdout_pipe[1]);
/* FIXME: This could be a little safer... */
do
{
n = read(stdout_pipe[0], &c, 1);
if (n == 0 || c == '\n')
break;
buf[i++] = c;
}
while (i < 256);
buf[i] = '\0';
result = atol (buf);
close(stdout_pipe[0]);
return result;
}
void widget_destroy( GtkWidget *widget,
gpointer data )
{
gtk_widget_destroy(widget);
gtk_widget_destroy(m_layout);
gtk_main_quit ();
}
int main(int argc, char **argv)
{
GtkWidget *window, *button, *textview, *vbox;
GtkWidget *socket, *plug, *socket_box;
unsigned long kb_xid;
gtk_init (&argc, &argv);
install_signal_handlers();
kb_xid = launch_keyboard();
if (!kb_xid)
{
perror ("### 'matchbox-keyboard --xid', failed to return valid window ID. ### ");
exit(-1);
}
/* Window */
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_default_size (GTK_WINDOW (window), 640, 480);
gtk_container_set_border_width (GTK_CONTAINER (window), 10);
g_signal_connect (G_OBJECT (window), "destroy",
G_CALLBACK (widget_destroy), NULL);
/* Container and textview */
vbox = gtk_vbox_new(FALSE, 5);
gtk_container_add (GTK_CONTAINER (window), vbox);
textview = gtk_text_view_new();
gtk_box_pack_start (GTK_BOX(vbox), textview, TRUE, TRUE, 2);
/* Socket ( XEMBED ) stuff */
socket_box = gtk_event_box_new ();
gtk_widget_show (socket_box);
socket = gtk_socket_new ();
gtk_container_add (GTK_CONTAINER (socket_box), socket);
gtk_box_pack_start (GTK_BOX (vbox), GTK_WIDGET(socket_box), TRUE, TRUE, 0);
gtk_socket_add_id(GTK_SOCKET(socket), kb_xid);
/* FIXME: handle "plug-added" & "plug-removed" signals for socket */
gtk_widget_show_all (window);
gtk_main ();
return 0;
}
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