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
  42
  43 /* Config: */
  44 #define DAEMON_CHECK_INTERVAL_MS 100
  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 gboolean daemon_running;
  61 static gboolean last_daemon_running,last_daemon_running_set=FALSE;
  62
  63         daemon_pid=is_daemon_running();
  64         daemon_running=((pid_t)-1!=daemon_pid);
  65
  66         /* Cache the result; maybe not needed. */
  67         if (last_daemon_running_set && last_daemon_running==daemon_running)
  68                 return;
  69         last_daemon_running=daemon_running;
  70         last_daemon_running_set=TRUE;
  71
  72         gtk_widget_set_sensitive(GTK_WIDGET(ButtonStart),!daemon_running);
  73         gtk_widget_set_sensitive(GTK_WIDGET(ButtonStop) , daemon_running);
  74         gtk_widget_set_sensitive(GTK_WIDGET(PortHBox)   ,!daemon_running);
  75         if (daemon_running)
  76                 gnome_appbar_set_status(AppBar,
  77                                 udpgate_printf_alloca(_("udpgate daemon running as PID %d."),(int)daemon_pid));
  78         else
  79                 gnome_appbar_set_status(AppBar,_("No udpgate daemon currently running."));
  80 }
  81
  82 static gboolean daemon_check_timeout_func(gpointer data /* unused */)
  83 {
  84         state_start_stop();
  85         return TRUE;    /* continue running */
  86 }
  87
  88 void on_PortButtonRandom_clicked(GtkButton *button,gpointer user_data)
  89 {
  90         g_return_if_fail(GTK_IS_BUTTON(button));
  91
  92         state_start_stop();
  93         if ((pid_t)-1!=is_daemon_running())
  94                 return;
  95         gtk_entry_set_text(PortEntry,
  96                         udpgate_printf_alloca("%d",(int)g_random_int_range(PORT_RANGE_BEGIN,PORT_RANGE_END)));
  97 }
  98
  99 void on_AutostartCheckButton_toggled(GtkToggleButton *togglebutton,gpointer user_data)
 100 {
 101         g_return_if_fail(GTK_IS_TOGGLE_BUTTON(togglebutton));
 102 }
 103
 104 void on_ButtonStart_clicked(GtkButton *button,gpointer user_data)
 105 {
 106 const gchar *port_string;
 107 char *endp;
 108 long port_long;
 109
 110         g_return_if_fail(GTK_IS_BUTTON(button));
 111
 112         port_string=gtk_entry_get_text(PortEntry);
 113         port_long=strtol(port_string,&endp,0);
 114         if (endp && *endp) {
 115                 g_warning(_("Invalid port specification, offending string: %s"),endp);
 116                 return;
 117                 }
 118         if (port_long<1 || port_long>=G_MAXINT || (endp && *endp)) {
 119                 g_warning(_("Invalid port integer number specification (%ld)"),port_long);
 120                 return;
 121                 }
 122         network_start(port_long);
 123 }
 124
 125 void on_ButtonStop_clicked(GtkButton *button,gpointer user_data)
 126 {
 127         g_return_if_fail(GTK_IS_BUTTON(button));
 128
 129         network_stop();
 130 }
 131
 132 void on_ButtonHide_clicked(GtkButton *button,gpointer user_data)
 133 {
 134         g_return_if_fail(GTK_IS_BUTTON(button));
 135
 136         /* Do not: gtk_main_quit();
 137          * as 'App' widget will quit our gtk_main() automatically.
 138          */
 139         gtk_widget_destroy(GTK_WIDGET(App));
 140 }
 141
 142 static void ui_gnome_g_log_handler(const gchar *log_domain,GLogLevelFlags log_level,const gchar *message,gpointer user_data)
 143 {
 144 GtkWidget *dialog;
 145
 146         /**/ if (log_level & G_LOG_LEVEL_ERROR)
 147                 dialog=gnome_app_error(App,message);
 148         else if (log_level & (G_LOG_LEVEL_CRITICAL|G_LOG_LEVEL_WARNING))
 149                 dialog=gnome_app_warning(App,message);
 150         else
 151                 dialog=gnome_app_message(App,message);
 152
 153         gtk_window_set_modal(GTK_WINDOW(dialog),TRUE);
 154         g_signal_connect((gpointer)dialog,"close",G_CALLBACK(gtk_main_quit),NULL);
 155         gtk_main();
 156         /* 'dialog' gets destroyed automatically */
 157 }
 158
 159 /* of "ui-gnome-interface.h": */
 160 GtkWidget *create_App(void);
 161 /* of "ui-gnome-support.h": */
 162 GtkWidget *lookup_widget(GtkWidget *widget,const gchar *widget_name);
 163
 164 gboolean ui_gnome_init(void)
 165 {
 166         App=GNOME_APP(create_App());
 167
 168         ButtonStart=GTK_BUTTON(lookup_widget(GTK_WIDGET(App),"ButtonStart"));
 169         ButtonStop=GTK_BUTTON(lookup_widget(GTK_WIDGET(App),"ButtonStop"));
 170         PortHBox=GTK_HBOX(lookup_widget(GTK_WIDGET(App),"PortHBox"));
 171         AppBar=GNOME_APPBAR(lookup_widget(GTK_WIDGET(App),"AppBar"));
 172         PortEntry=GTK_ENTRY(lookup_widget(GTK_WIDGET(App),"PortEntry"));
 173
 174         /* ui_gnome_g_log_handler() needs 'App'. */
 175         g_log_set_handler(
 176                         G_LOG_DOMAIN,   /* log_domain; "Captive" */
 177                         (G_LOG_LEVEL_MASK|G_LOG_FLAG_FATAL)&~(0
 178                                         |G_LOG_LEVEL_MESSAGE
 179                                         |G_LOG_LEVEL_INFO
 180                                         |G_LOG_LEVEL_DEBUG),    /* log_levels */
 181                         ui_gnome_g_log_handler, /* log_func */
 182                         NULL);  /* user_data */
 183
 184         gtk_widget_show_all(GTK_WIDGET(App));
 185         g_timeout_add(
 186                         DAEMON_CHECK_INTERVAL_MS,       /* interval */
 187                         daemon_check_timeout_func,      /* function */
 188                         NULL);  /* data; unused */
 189         return TRUE;
 190 }
 191
 192 void ui_gnome_interactive(void)
 193 {
 194         gtk_main();
 195 }