src/ui-gnome.c

   1 /* $Id$
   2  * Gnome user interface
   3  * Copyright (C) 2004 Jan Kratochvil <project-udpforward@jankratochvil.net>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; exactly version 2 of June 1991 is required
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write to the Free Software
  16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  17  */
  18
  19
  20 #include "config.h"
  21
  22 #include "ui-gnome.h"   /* self */
  23 #include <glib/gmessages.h>
  24 #include "main.h"
  25 #include <libgnomeui/gnome-app.h>
  26 #include <sys/types.h>
  27 #include <signal.h>
  28 #include <stdio.h>
  29 #include <errno.h>
  30 #include <libgnomeui/gnome-appbar.h>
  31 #include <gtk/gtkbutton.h>
  32 #include <unistd.h>
  33 #include <stdlib.h>
  34 #include <gtk/gtkentry.h>
  35 #include <gtk/gtktogglebutton.h>
  36 #include <string.h>
  37 #include <gtk/gtkmain.h>
  38 #include <libgnomeui/gnome-app-util.h>
  39
  40 #include "network.h"
  41
  42
  43 /* Config: */
  44 #define DAEMON_CHECK_INTERVAL_MS 500
  45 #define PORT_RANGE_BEGIN 2048
  46 #define PORT_RANGE_END 10240
  47
  48
  49 static GnomeApp *App;
  50 static GtkButton *ButtonStart;
  51 static GtkButton *ButtonStop;
  52 static GtkHBox *PortHBox;
  53 static GnomeAppBar *AppBar;
  54 static GtkEntry *PortEntry;
  55
  56
  57 static void state_start_stop(void)
  58 {
  59 pid_t daemon_pid;
  60
  61         daemon_pid=is_daemon_running();
  62         gboolean daemon_running=((pid_t)-1!=daemon_pid);
  63         gtk_widget_set_sensitive(GTK_WIDGET(ButtonStart),!daemon_running);
  64         gtk_widget_set_sensitive(GTK_WIDGET(ButtonStop) , daemon_running);
  65         gtk_widget_set_sensitive(GTK_WIDGET(PortHBox)   ,!daemon_running);
  66         if (daemon_running)
  67                 gnome_appbar_set_status(AppBar,
  68                                 udpforward_printf_alloca(_("udpforward daemon running as PID %d."),(int)daemon_pid));
  69         else
  70                 gnome_appbar_set_status(AppBar,_("No udpforward daemon currently running."));
  71 }
  72
  73 static gboolean daemon_check_timeout_func(gpointer data /* unused */)
  74 {
  75         state_start_stop();
  76         return TRUE;    /* continue running */
  77 }
  78
  79 void on_PortButtonRandom_clicked(GtkButton *button,gpointer user_data)
  80 {
  81         g_return_if_fail(GTK_IS_BUTTON(button));
  82
  83         state_start_stop();
  84         if ((pid_t)-1!=is_daemon_running())
  85                 return;
  86         gtk_entry_set_text(PortEntry,
  87                         udpforward_printf_alloca("%d",(int)g_random_int_range(PORT_RANGE_BEGIN,PORT_RANGE_END)));
  88 }
  89
  90 void on_AutostartCheckButton_toggled(GtkToggleButton *togglebutton,gpointer user_data)
  91 {
  92         g_return_if_fail(GTK_IS_TOGGLE_BUTTON(togglebutton));
  93 }
  94
  95 void on_ButtonStart_clicked(GtkButton *button,gpointer user_data)
  96 {
  97 const gchar *port_string;
  98 char *endp;
  99 long port_long;
 100
 101         g_return_if_fail(GTK_IS_BUTTON(button));
 102
 103         port_string=gtk_entry_get_text(PortEntry);
 104         port_long=strtol(port_string,&endp,0);
 105         if (endp && *endp) {
 106                 g_warning(_("Invalid port specification, offending string: %s"),endp);
 107                 return;
 108                 }
 109         if (port_long<1 || port_long>=G_MAXINT || (endp && *endp)) {
 110                 g_warning(_("Invalid port integer number specification (%ld)"),port_long);
 111                 return;
 112                 }
 113         network_start(port_long);
 114 }
 115
 116 void on_ButtonStop_clicked(GtkButton *button,gpointer user_data)
 117 {
 118         g_return_if_fail(GTK_IS_BUTTON(button));
 119
 120         network_stop();
 121 }
 122
 123 void on_ButtonHide_clicked(GtkButton *button,gpointer user_data)
 124 {
 125         g_return_if_fail(GTK_IS_BUTTON(button));
 126
 127         /* Do not: gtk_main_quit();
 128          * as 'App' widget will quit our gtk_main() automatically.
 129          */
 130         gtk_widget_destroy(GTK_WIDGET(App));
 131 }
 132
 133 static void ui_gnome_g_log_handler(const gchar *log_domain,GLogLevelFlags log_level,const gchar *message,gpointer user_data)
 134 {
 135 GtkWidget *dialog;
 136
 137         /**/ if (log_level & G_LOG_LEVEL_ERROR)
 138                 dialog=gnome_app_error(App,message);
 139         else if (log_level & (G_LOG_LEVEL_CRITICAL|G_LOG_LEVEL_WARNING))
 140                 dialog=gnome_app_warning(App,message);
 141         else
 142                 dialog=gnome_app_message(App,message);
 143
 144         gtk_window_set_modal(GTK_WINDOW(dialog),TRUE);
 145         g_signal_connect((gpointer)dialog,"close",G_CALLBACK(gtk_main_quit),NULL);
 146         gtk_main();
 147         /* 'dialog' gets destroyed automatically */
 148 }
 149
 150 /* of "ui-gnome-interface.h": */
 151 GtkWidget *create_App(void);
 152 /* of "ui-gnome-support.h": */
 153 GtkWidget *lookup_widget(GtkWidget *widget,const gchar *widget_name);
 154
 155 gboolean ui_gnome_init(void)
 156 {
 157         App=GNOME_APP(create_App());
 158
 159         ButtonStart=GTK_BUTTON(lookup_widget(GTK_WIDGET(App),"ButtonStart"));
 160         ButtonStop=GTK_BUTTON(lookup_widget(GTK_WIDGET(App),"ButtonStop"));
 161         PortHBox=GTK_HBOX(lookup_widget(GTK_WIDGET(App),"PortHBox"));
 162         AppBar=GNOME_APPBAR(lookup_widget(GTK_WIDGET(App),"AppBar"));
 163         PortEntry=GTK_ENTRY(lookup_widget(GTK_WIDGET(App),"PortEntry"));
 164
 165         /* ui_gnome_g_log_handler() needs 'App'. */
 166         g_log_set_handler(
 167                         G_LOG_DOMAIN,   /* log_domain; "Captive" */
 168                         G_LOG_LEVEL_MASK | G_LOG_FLAG_FATAL,    /* log_levels */
 169                         ui_gnome_g_log_handler, /* log_func */
 170                         NULL);  /* user_data */
 171
 172         gtk_widget_show_all(GTK_WIDGET(App));
 173         g_timeout_add(
 174                         DAEMON_CHECK_INTERVAL_MS,       /* interval */
 175                         daemon_check_timeout_func,      /* function */
 176                         NULL);  /* data; unused */
 177         return TRUE;
 178 }
 179
 180 void ui_gnome_interactive(void)
 181 {
 182         gtk_main();
 183 }