src/grouplistdialog.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2001 Hiroyuki Yamamoto
   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; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <gdk/gdkkeysyms.h>
  28 #include <gtk/gtkmain.h>
  29 #include <gtk/gtkwidget.h>
  30 #include <gtk/gtkdialog.h>
  31 #include <gtk/gtkwindow.h>
  32 #include <gtk/gtksignal.h>
  33 #include <gtk/gtkvbox.h>
  34 #include <gtk/gtkhbox.h>
  35 #include <gtk/gtklabel.h>
  36 #include <gtk/gtkentry.h>
  37 #include <gtk/gtkclist.h>
  38 #include <gtk/gtkscrolledwindow.h>
  39 #include <gtk/gtkbutton.h>
  40 #include <gtk/gtkhbbox.h>
  41
  42 #include "intl.h"
  43 #include "grouplistdialog.h"
  44 #include "manage_window.h"
  45 #include "gtkutils.h"
  46 #include "utils.h"
  47 #include "news.h"
  48 #include "folder.h"
  49 #include "alertpanel.h"
  50 #include "recv.h"
  51 #include "socket.h"
  52
  53 #define GROUPLIST_DIALOG_WIDTH  420
  54 #define GROUPLIST_DIALOG_HEIGHT 400
  55
  56 static gboolean ack;
  57 static gboolean locked;
  58
  59 static GtkWidget *dialog;
  60 static GtkWidget *entry;
  61 static GtkWidget *clist;
  62 static GtkWidget *status_label;
  63 static GtkWidget *ok_button;
  64 static GSList *group_list;
  65 static Folder *news_folder;
  66
  67 static void grouplist_dialog_create     (void);
  68 static void grouplist_dialog_set_list   (void);
  69 static void grouplist_clear             (void);
  70 static void grouplist_recv_func         (SockInfo       *sock,
  71                                          gint            count,
  72                                          gint            read_bytes,
  73                                          gpointer        data);
  74
  75 static void ok_clicked          (GtkWidget      *widget,
  76                                  gpointer        data);
  77 static void cancel_clicked      (GtkWidget      *widget,
  78                                  gpointer        data);
  79 static void refresh_clicked     (GtkWidget      *widget,
  80                                  gpointer        data);
  81 static void key_pressed         (GtkWidget      *widget,
  82                                  GdkEventKey    *event,
  83                                  gpointer        data);
  84 static void clist_selected      (GtkCList       *clist,
  85                                  gint            row,
  86                                  gint            column,
  87                                  GdkEventButton *event,
  88                                  gpointer        user_data);
  89 static void entry_activated     (GtkEditable    *editable);
  90
  91 gchar *grouplist_dialog(Folder *folder)
  92 {
  93         gchar *str;
  94
  95         if (dialog && GTK_WIDGET_VISIBLE(dialog)) return NULL;
  96
  97         if (!dialog)
  98                 grouplist_dialog_create();
  99
 100         news_folder = folder;
 101
 102         gtk_widget_show(dialog);
 103         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
 104         manage_window_set_transient(GTK_WINDOW(dialog));
 105         GTK_EVENTS_FLUSH();
 106
 107         grouplist_dialog_set_list();
 108
 109         gtk_main();
 110
 111         manage_window_focus_out(dialog, NULL, NULL);
 112         gtk_widget_hide(dialog);
 113
 114         if (ack) {
 115                 str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 116                 if (str && *str == '\0') {
 117                         g_free(str);
 118                         str = NULL;
 119                 }
 120         } else
 121                 str = NULL;
 122
 123         grouplist_clear();
 124         GTK_EVENTS_FLUSH();
 125
 126         debug_print("return string = %s\n", str ? str : "(none)");
 127         return str;
 128 }
 129
 130 static void grouplist_clear(void)
 131 {
 132         gtk_clist_clear(GTK_CLIST(clist));
 133         gtk_entry_set_text(GTK_ENTRY(entry), "");
 134         slist_free_strings(group_list);
 135         g_slist_free(group_list);
 136 }
 137
 138 static void grouplist_dialog_create(void)
 139 {
 140         GtkWidget *vbox;
 141         GtkWidget *hbox;
 142         GtkWidget *msg_label;
 143         GtkWidget *confirm_area;
 144         GtkWidget *cancel_button;
 145         GtkWidget *refresh_button;
 146         GtkWidget *scrolledwin;
 147
 148         dialog = gtk_dialog_new();
 149         gtk_window_set_policy(GTK_WINDOW(dialog), FALSE, TRUE, FALSE);
 150         gtk_widget_set_usize(dialog,
 151                              GROUPLIST_DIALOG_WIDTH, GROUPLIST_DIALOG_HEIGHT);
 152         gtk_container_set_border_width
 153                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
 154         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
 155         gtk_window_set_title(GTK_WINDOW(dialog), _("Subscribe to newsgroup"));
 156         gtk_signal_connect(GTK_OBJECT(dialog), "delete_event",
 157                            GTK_SIGNAL_FUNC(cancel_clicked), NULL);
 158         gtk_signal_connect(GTK_OBJECT(dialog), "key_press_event",
 159                            GTK_SIGNAL_FUNC(key_pressed), NULL);
 160         gtk_signal_connect(GTK_OBJECT(dialog), "focus_in_event",
 161                            GTK_SIGNAL_FUNC(manage_window_focus_in), NULL);
 162         gtk_signal_connect(GTK_OBJECT(dialog), "focus_out_event",
 163                            GTK_SIGNAL_FUNC(manage_window_focus_out), NULL);
 164
 165         gtk_widget_realize(dialog);
 166
 167         vbox = gtk_vbox_new(FALSE, 8);
 168         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
 169         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
 170
 171         hbox = gtk_hbox_new(FALSE, 0);
 172         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 173
 174         msg_label = gtk_label_new(_("Input subscribing newsgroup:"));
 175         gtk_box_pack_start(GTK_BOX(hbox), msg_label, FALSE, FALSE, 0);
 176
 177         entry = gtk_entry_new();
 178         gtk_box_pack_start(GTK_BOX(vbox), entry, FALSE, FALSE, 0);
 179         gtk_signal_connect(GTK_OBJECT(entry), "activate",
 180                            GTK_SIGNAL_FUNC(entry_activated), NULL);
 181
 182         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 183         gtk_box_pack_start(GTK_BOX (vbox), scrolledwin, TRUE, TRUE, 0);
 184         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW (scrolledwin),
 185                                        GTK_POLICY_AUTOMATIC,
 186                                        GTK_POLICY_AUTOMATIC);
 187
 188         clist = gtk_clist_new(1);
 189         gtk_container_add(GTK_CONTAINER(scrolledwin), clist);
 190         gtk_clist_set_column_width(GTK_CLIST(clist), 0, 80);
 191         gtk_clist_set_selection_mode(GTK_CLIST(clist), GTK_SELECTION_BROWSE);
 192         GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(clist)->column[0].button,
 193                                GTK_CAN_FOCUS);
 194         gtk_signal_connect(GTK_OBJECT(clist), "select_row",
 195                            GTK_SIGNAL_FUNC(clist_selected), NULL);
 196
 197         hbox = gtk_hbox_new(FALSE, 0);
 198         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 199
 200         status_label = gtk_label_new("");
 201         gtk_box_pack_start(GTK_BOX(hbox), status_label, FALSE, FALSE, 0);
 202
 203         gtkut_button_set_create(&confirm_area,
 204                                 &ok_button,      _("OK"),
 205                                 &cancel_button,  _("Cancel"),
 206                                 &refresh_button, _("Refresh"));
 207         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area),
 208                           confirm_area);
 209         gtk_widget_grab_default(ok_button);
 210
 211         gtk_signal_connect(GTK_OBJECT(ok_button), "clicked",
 212                            GTK_SIGNAL_FUNC(ok_clicked), NULL);
 213         gtk_signal_connect(GTK_OBJECT(cancel_button), "clicked",
 214                            GTK_SIGNAL_FUNC(cancel_clicked), NULL);
 215         gtk_signal_connect(GTK_OBJECT(refresh_button), "clicked",
 216                            GTK_SIGNAL_FUNC(refresh_clicked), NULL);
 217
 218         gtk_widget_show_all(GTK_DIALOG(dialog)->vbox);
 219 }
 220
 221 static void grouplist_dialog_set_list(void)
 222 {
 223         GSList *cur;
 224         gint row;
 225
 226         if (locked) return;
 227         locked = TRUE;
 228
 229         recv_set_ui_func(grouplist_recv_func, NULL);
 230         group_list = news_get_group_list(news_folder);
 231         recv_set_ui_func(NULL, NULL);
 232         if (group_list == NULL) {
 233                 alertpanel_error(_("Can't retrieve newsgroup list."));
 234                 locked = FALSE;
 235                 return;
 236         }
 237
 238         gtk_clist_freeze(GTK_CLIST(clist));
 239         for (cur = group_list; cur != NULL ; cur = cur->next) {
 240                 row = gtk_clist_append(GTK_CLIST(clist),
 241                                        (gchar **)&(cur->data));
 242                 gtk_clist_set_row_data(GTK_CLIST(clist), row, cur->data);
 243         }
 244         gtk_clist_thaw(GTK_CLIST(clist));
 245
 246         gtk_widget_grab_focus(ok_button);
 247         gtk_widget_grab_focus(clist);
 248
 249         gtk_label_set_text(GTK_LABEL(status_label), _("Done."));
 250
 251         locked = FALSE;
 252 }
 253
 254 static void grouplist_recv_func(SockInfo *sock, gint count, gint read_bytes,
 255                                 gpointer data)
 256 {
 257         gchar buf[BUFFSIZE];
 258
 259         g_snprintf(buf, sizeof(buf),
 260                    _("%d newsgroups received (%s read)"),
 261                    count, to_human_readable(read_bytes));
 262         gtk_label_set_text(GTK_LABEL(status_label), buf);
 263         GTK_EVENTS_FLUSH();
 264 }
 265
 266 static void ok_clicked(GtkWidget *widget, gpointer data)
 267 {
 268         ack = TRUE;
 269         if (gtk_main_level() > 1)
 270                 gtk_main_quit();
 271 }
 272
 273 static void cancel_clicked(GtkWidget *widget, gpointer data)
 274 {
 275         ack = FALSE;
 276         if (gtk_main_level() > 1)
 277                 gtk_main_quit();
 278 }
 279
 280 static void refresh_clicked(GtkWidget *widget, gpointer data)
 281 {
 282         if (locked) return;
 283
 284         grouplist_clear();
 285         news_remove_group_list(news_folder);
 286         grouplist_dialog_set_list();
 287 }
 288
 289 static void key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 290 {
 291         if (event && event->keyval == GDK_Escape)
 292                 cancel_clicked(NULL, NULL);
 293 }
 294
 295 static void clist_selected(GtkCList *clist, gint row, gint column,
 296                            GdkEventButton *event, gpointer user_data)
 297 {
 298         gchar *group;
 299
 300         group = (gchar *)gtk_clist_get_row_data(GTK_CLIST(clist), row);
 301         gtk_entry_set_text(GTK_ENTRY(entry), group ? group : "");
 302 }
 303
 304 static void entry_activated(GtkEditable *editable)
 305 {
 306         ok_clicked(NULL, NULL);
 307 }