src/ui-gnome.c

   1 /* $Id$
   2  * Gnome user interface
   3  * Copyright (C) 2004 Jan Kratochvil <project-udpgate@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 #include "packet.h"
  42
  43
  44 /* Config: */
  45 #define DAEMON_CHECK_INTERVAL_MS 100
  46 #define PORT_RANGE_BEGIN 2048
  47 #define PORT_RANGE_END 10240
  48
  49
  50 static GnomeApp *App;
  51 static GtkButton *ButtonStart;
  52 static GtkButton *ButtonStop;
  53 static GtkHBox *PortHBox;
  54 static GnomeAppBar *AppBar;
  55 static GtkEntry *PortEntry;
  56 static GtkEntry *HostIPEntry;
  57
  58
  59 static void state_start_stop(void)
  60 {
  61 pid_t daemon_pid;
  62 gboolean daemon_running;
  63 static gboolean last_daemon_running,last_daemon_running_set=FALSE;
  64
  65         daemon_pid=is_daemon_running();
  66         daemon_running=((pid_t)-1!=daemon_pid);
  67
  68         /* Cache the result; maybe not needed. */
  69         if (last_daemon_running_set && last_daemon_running==daemon_running)
  70                 return;
  71         last_daemon_running=daemon_running;
  72         last_daemon_running_set=TRUE;
  73
  74         gtk_widget_set_sensitive(GTK_WIDGET(ButtonStart),!daemon_running);
  75         gtk_widget_set_sensitive(GTK_WIDGET(ButtonStop) , daemon_running);
  76         gtk_widget_set_sensitive(GTK_WIDGET(PortHBox)   ,!daemon_running);
  77         if (daemon_running)
  78                 gnome_appbar_set_status(AppBar,
  79                                 udpgate_printf_alloca(_("udpgate daemon running as PID %d."),(int)daemon_pid));
  80         else
  81                 gnome_appbar_set_status(AppBar,_("No udpgate daemon currently running."));
  82 }
  83
  84 static gboolean daemon_check_timeout_func(gpointer data /* unused */)
  85 {
  86         state_start_stop();
  87         return TRUE;    /* continue running */
  88 }
  89
  90 void on_PortButtonRandom_clicked(GtkButton *button,gpointer user_data)
  91 {
  92         g_return_if_fail(GTK_IS_BUTTON(button));
  93
  94         state_start_stop();
  95         if ((pid_t)-1!=is_daemon_running())
  96                 return;
  97         gtk_entry_set_text(PortEntry,
  98                         udpgate_printf_alloca("%d",(int)g_random_int_range(PORT_RANGE_BEGIN,PORT_RANGE_END)));
  99 }
 100
 101 void on_AutostartCheckButton_toggled(GtkToggleButton *togglebutton,gpointer user_data)
 102 {
 103         g_return_if_fail(GTK_IS_TOGGLE_BUTTON(togglebutton));
 104 }
 105
 106 void on_ButtonStart_clicked(GtkButton *button,gpointer user_data)
 107 {
 108 const gchar *port_string;
 109 char *endp;
 110 long port_long;
 111
 112         g_return_if_fail(GTK_IS_BUTTON(button));
 113
 114         port_string=gtk_entry_get_text(PortEntry);
 115         port_long=strtol(port_string,&endp,0);
 116         if (endp && *endp) {
 117                 g_warning(_("Invalid port specification, offending string: %s"),endp);
 118                 return;
 119                 }
 120         if (port_long<1 || port_long>=G_MAXINT || (endp && *endp)) {
 121                 g_warning(_("Invalid port integer number specification (%ld)"),port_long);
 122                 return;
 123                 }
 124         network_start(port_long);
 125 }
 126
 127 void on_ButtonStop_clicked(GtkButton *button,gpointer user_data)
 128 {
 129         g_return_if_fail(GTK_IS_BUTTON(button));
 130
 131         network_stop();
 132 }
 133
 134 void on_ButtonHide_clicked(GtkButton *button,gpointer user_data)
 135 {
 136         g_return_if_fail(GTK_IS_BUTTON(button));
 137
 138         /* Do not: gtk_main_quit();
 139          * as 'App' widget will quit our gtk_main() automatically.
 140          */
 141         gtk_widget_destroy(GTK_WIDGET(App));
 142 }
 143
 144 static void ui_gnome_network_notify_hostip(guint32 hostip_guint32)
 145 {
 146         if (!hostip_guint32) {
 147                 if (is_daemon_running()==(pid_t)-1)
 148                         gtk_entry_set_text(HostIPEntry,_("(unknown; Start the daemon)"));
 149                 else
 150                         gtk_entry_set_text(HostIPEntry,_("(unknown; detecting...)"));
 151                 }
 152         else {
 153                 gtk_entry_set_text(HostIPEntry,HOSTIP_GUINT32_TO_STRING(hostip_guint32));
 154                 }
 155 }
 156
 157 static guint ui_gnome_g_log_handler_handler_id;
 158 static void ui_gnome_g_log_handler(const gchar *log_domain,GLogLevelFlags log_level,const gchar *message,gpointer user_data)
 159 {
 160 GtkWidget *dialog;
 161
 162         /**/ if (log_level & G_LOG_LEVEL_ERROR)
 163                 dialog=gnome_app_error(App,message);
 164         else if (log_level & (G_LOG_LEVEL_CRITICAL|G_LOG_LEVEL_WARNING))
 165                 dialog=gnome_app_warning(App,message);
 166         else
 167                 dialog=gnome_app_message(App,message);
 168
 169         gtk_window_set_modal(GTK_WINDOW(dialog),TRUE);
 170         g_signal_connect((gpointer)dialog,"close",G_CALLBACK(gtk_main_quit),NULL);
 171         gtk_main();
 172         /* 'dialog' gets destroyed automatically */
 173 }
 174
 175 static void ui_gnome_interactive(void)
 176 {
 177         gtk_main();
 178         network_notify_hostip=NULL;
 179         g_log_remove_handler(
 180                         G_LOG_DOMAIN,   /* log_domain; "Captive" */
 181                         ui_gnome_g_log_handler_handler_id);     /* handler_id */
 182         network_detach();
 183 }
 184
 185 /* of "ui-gnome-interface.h": */
 186 GtkWidget *create_App(void);
 187 /* of "ui-gnome-support.h": */
 188 GtkWidget *lookup_widget(GtkWidget *widget,const gchar *widget_name);
 189
 190 gboolean ui_gnome_init(void)
 191 {
 192         App=GNOME_APP(create_App());
 193
 194         ButtonStart=GTK_BUTTON(lookup_widget(GTK_WIDGET(App),"ButtonStart"));
 195         ButtonStop=GTK_BUTTON(lookup_widget(GTK_WIDGET(App),"ButtonStop"));
 196         PortHBox=GTK_HBOX(lookup_widget(GTK_WIDGET(App),"PortHBox"));
 197         AppBar=GNOME_APPBAR(lookup_widget(GTK_WIDGET(App),"AppBar"));
 198         PortEntry=GTK_ENTRY(lookup_widget(GTK_WIDGET(App),"PortEntry"));
 199         HostIPEntry=GTK_ENTRY(lookup_widget(GTK_WIDGET(App),"HostIPEntry"));
 200
 201         /* ui_gnome_g_log_handler() needs 'App'. */
 202         ui_gnome_g_log_handler_handler_id=g_log_set_handler(
 203                         G_LOG_DOMAIN,   /* log_domain; "Captive" */
 204                         (G_LOG_LEVEL_MASK|G_LOG_FLAG_FATAL)&~(0
 205                                         |G_LOG_LEVEL_MESSAGE
 206                                         |G_LOG_LEVEL_INFO
 207                                         |G_LOG_LEVEL_DEBUG),    /* log_levels */
 208                         ui_gnome_g_log_handler, /* log_func */
 209                         NULL);  /* user_data */
 210
 211         ui_gnome_network_notify_hostip(0);
 212         gtk_entry_set_text(PortEntry,udpgate_printf_alloca("%d",(int)optarg_port));
 213
 214         gtk_widget_show_all(GTK_WIDGET(App));
 215         g_timeout_add(
 216                         DAEMON_CHECK_INTERVAL_MS,       /* interval */
 217                         daemon_check_timeout_func,      /* function */
 218                         NULL);  /* data; unused */
 219
 220         network_notify_hostip=ui_gnome_network_notify_hostip;
 221
 222         ui_interactive=ui_gnome_interactive;
 223
 224         return TRUE;
 225 }