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/gtkctree.h>
  39 #include <gtk/gtkscrolledwindow.h>
  40 #include <gtk/gtkbutton.h>
  41 #include <gtk/gtkhbbox.h>
  42 #include <string.h>
  43 #include <fnmatch.h>
  44
  45 #include "intl.h"
  46 #include "grouplistdialog.h"
  47 #include "manage_window.h"
  48 #include "gtkutils.h"
  49 #include "utils.h"
  50 #include "news.h"
  51 #include "folder.h"
  52 #include "alertpanel.h"
  53 #include "recv.h"
  54 #include "socket.h"
  55
  56 #define GROUPLIST_DIALOG_WIDTH  500
  57 #define GROUPLIST_NAMES         250
  58 #define GROUPLIST_DIALOG_HEIGHT 400
  59
  60 static GList * subscribed = NULL;
  61 gboolean dont_unsubscribed = FALSE;
  62
  63 static gboolean ack;
  64 static gboolean locked;
  65
  66 static GtkWidget *dialog;
  67 static GtkWidget *entry;
  68 // static GtkWidget *clist;
  69 static GtkWidget *groups_tree;
  70 static GtkWidget *status_label;
  71 static GtkWidget *ok_button;
  72 static Folder *news_folder;
  73
  74 static void grouplist_dialog_create     (void);
  75 static void grouplist_dialog_set_list   (gchar * pattern);
  76 static void grouplist_clear             (void);
  77 static void grouplist_recv_func         (SockInfo       *sock,
  78                                          gint            count,
  79                                          gint            read_bytes,
  80                                          gpointer        data);
  81
  82 static void ok_clicked          (GtkWidget      *widget,
  83                                  gpointer        data);
  84 static void cancel_clicked      (GtkWidget      *widget,
  85                                  gpointer        data);
  86 static void refresh_clicked     (GtkWidget      *widget,
  87                                  gpointer        data);
  88 static void key_pressed         (GtkWidget      *widget,
  89                                  GdkEventKey    *event,
  90                                  gpointer        data);
  91 static void groups_tree_selected        (GtkCTree       *groups_tree,
  92                                          GtkCTreeNode   * node,
  93                                          gint            column,
  94                                          GdkEventButton *event,
  95                                          gpointer        user_data);
  96 static void groups_tree_unselected      (GtkCTree       *groups_tree,
  97                                          GtkCTreeNode   * node,
  98                                          gint            column,
  99                                          GdkEventButton *event,
 100                                          gpointer        user_data);
 101 static void entry_activated     (GtkEditable    *editable);
 102
 103 GList *grouplist_dialog(Folder *folder, GList * cur_subscriptions)
 104 {
 105         gchar *str;
 106         GList * l;
 107
 108         if (dialog && GTK_WIDGET_VISIBLE(dialog)) return NULL;
 109
 110         if (!dialog)
 111                 grouplist_dialog_create();
 112
 113         news_folder = folder;
 114
 115         gtk_widget_show(dialog);
 116         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
 117         manage_window_set_transient(GTK_WINDOW(dialog));
 118         GTK_EVENTS_FLUSH();
 119
 120         subscribed = NULL;
 121
 122         for(l = cur_subscriptions ; l != NULL ; l = l->next)
 123           subscribed = g_list_append(subscribed, g_strdup((gchar *) l->data));
 124
 125         grouplist_dialog_set_list(NULL);
 126
 127         gtk_main();
 128
 129         manage_window_focus_out(dialog, NULL, NULL);
 130         gtk_widget_hide(dialog);
 131
 132         if (!ack) {
 133           list_free_strings(subscribed);
 134           g_list_free(subscribed);
 135
 136           subscribed = NULL;
 137
 138           for(l = cur_subscriptions ; l != NULL ; l = l->next)
 139             subscribed = g_list_append(subscribed, g_strdup((gchar *) l->data));
 140         }
 141
 142         GTK_EVENTS_FLUSH();
 143
 144         debug_print("return string = %s\n", str ? str : "(none)");
 145         return subscribed;
 146 }
 147
 148 static void grouplist_clear(void)
 149 {
 150         dont_unsubscribed = TRUE;
 151         gtk_clist_clear(GTK_CLIST(groups_tree));
 152         gtk_entry_set_text(GTK_ENTRY(entry), "");
 153         dont_unsubscribed = FALSE;
 154 }
 155
 156 static void grouplist_dialog_create(void)
 157 {
 158         GtkWidget *vbox;
 159         GtkWidget *hbox;
 160         GtkWidget *msg_label;
 161         GtkWidget *confirm_area;
 162         GtkWidget *cancel_button;
 163         GtkWidget *refresh_button;
 164         GtkWidget *scrolledwin;
 165         gchar * col_names[3] = {
 166                 _("name"), _("count of messages"), _("type")
 167         };
 168
 169         dialog = gtk_dialog_new();
 170         gtk_window_set_policy(GTK_WINDOW(dialog), FALSE, TRUE, FALSE);
 171         gtk_widget_set_usize(dialog,
 172                              GROUPLIST_DIALOG_WIDTH, GROUPLIST_DIALOG_HEIGHT);
 173         gtk_container_set_border_width
 174                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
 175         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
 176         gtk_window_set_title(GTK_WINDOW(dialog), _("Subscribe to newsgroup"));
 177         gtk_signal_connect(GTK_OBJECT(dialog), "delete_event",
 178                            GTK_SIGNAL_FUNC(cancel_clicked), NULL);
 179         gtk_signal_connect(GTK_OBJECT(dialog), "key_press_event",
 180                            GTK_SIGNAL_FUNC(key_pressed), NULL);
 181         gtk_signal_connect(GTK_OBJECT(dialog), "focus_in_event",
 182                            GTK_SIGNAL_FUNC(manage_window_focus_in), NULL);
 183         gtk_signal_connect(GTK_OBJECT(dialog), "focus_out_event",
 184                            GTK_SIGNAL_FUNC(manage_window_focus_out), NULL);
 185
 186         gtk_widget_realize(dialog);
 187
 188         vbox = gtk_vbox_new(FALSE, 8);
 189         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
 190         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
 191
 192         hbox = gtk_hbox_new(FALSE, 0);
 193         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 194
 195         msg_label = gtk_label_new(_("Input subscribing newsgroup:"));
 196         gtk_box_pack_start(GTK_BOX(hbox), msg_label, FALSE, FALSE, 0);
 197
 198         entry = gtk_entry_new();
 199         gtk_box_pack_start(GTK_BOX(vbox), entry, FALSE, FALSE, 0);
 200         gtk_signal_connect(GTK_OBJECT(entry), "activate",
 201                            GTK_SIGNAL_FUNC(entry_activated), NULL);
 202
 203         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 204         gtk_box_pack_start(GTK_BOX (vbox), scrolledwin, TRUE, TRUE, 0);
 205         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW (scrolledwin),
 206                                        GTK_POLICY_AUTOMATIC,
 207                                        GTK_POLICY_AUTOMATIC);
 208
 209         groups_tree = gtk_ctree_new_with_titles(3, 0, col_names);
 210         gtk_container_add(GTK_CONTAINER(scrolledwin), groups_tree);
 211         gtk_clist_set_selection_mode(GTK_CLIST(groups_tree),
 212                                      GTK_SELECTION_MULTIPLE);
 213         /*
 214         GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(clist)->column[0].button,
 215                                GTK_CAN_FOCUS);
 216         */
 217         gtk_signal_connect(GTK_OBJECT(groups_tree), "tree_select_row",
 218                            GTK_SIGNAL_FUNC(groups_tree_selected), NULL);
 219         gtk_signal_connect(GTK_OBJECT(groups_tree), "tree_unselect_row",
 220                            GTK_SIGNAL_FUNC(groups_tree_unselected), NULL);
 221
 222         hbox = gtk_hbox_new(FALSE, 0);
 223         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 224
 225         status_label = gtk_label_new("");
 226         gtk_box_pack_start(GTK_BOX(hbox), status_label, FALSE, FALSE, 0);
 227
 228         gtkut_button_set_create(&confirm_area,
 229                                 &ok_button,      _("OK"),
 230                                 &cancel_button,  _("Cancel"),
 231                                 &refresh_button, _("Refresh"));
 232         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area),
 233                           confirm_area);
 234         gtk_widget_grab_default(ok_button);
 235
 236         gtk_signal_connect(GTK_OBJECT(ok_button), "clicked",
 237                            GTK_SIGNAL_FUNC(ok_clicked), NULL);
 238         gtk_signal_connect(GTK_OBJECT(cancel_button), "clicked",
 239                            GTK_SIGNAL_FUNC(cancel_clicked), NULL);
 240         gtk_signal_connect(GTK_OBJECT(refresh_button), "clicked",
 241                            GTK_SIGNAL_FUNC(refresh_clicked), NULL);
 242
 243         gtk_widget_show_all(GTK_DIALOG(dialog)->vbox);
 244 }
 245
 246 static GHashTable * hash_last_node;
 247 static GHashTable * hash_branch_node;
 248
 249 static void hash_news_init()
 250 {
 251         hash_last_node = g_hash_table_new(g_str_hash, g_str_equal);
 252         hash_branch_node = g_hash_table_new(g_str_hash, g_str_equal);
 253 }
 254
 255 static void free_key(gchar * key, void * value, void * user_data)
 256 {
 257         g_free(key);
 258 }
 259
 260 static void hash_news_done()
 261 {
 262         g_hash_table_foreach(hash_branch_node, free_key, NULL);
 263         g_hash_table_foreach(hash_last_node, free_key, NULL);
 264
 265         g_hash_table_destroy(hash_branch_node);
 266         g_hash_table_destroy(hash_last_node);
 267 }
 268
 269 static GtkCTreeNode * hash_news_get_branch_node(gchar * name)
 270 {
 271         return g_hash_table_lookup(hash_branch_node, name);
 272 }
 273
 274 static void hash_news_set_branch_node(gchar * name, GtkCTreeNode * node)
 275 {
 276         g_hash_table_insert(hash_branch_node, g_strdup(name), node);
 277 }
 278
 279 static GtkCTreeNode * hash_news_get_last_node(gchar * name)
 280 {
 281         return g_hash_table_lookup(hash_last_node, name);
 282 }
 283
 284 static void hash_news_set_last_node(gchar * name, GtkCTreeNode * node)
 285 {
 286         gchar * key;
 287         void * value;
 288
 289         if (g_hash_table_lookup_extended(hash_last_node, name,
 290                                          (void *) &key, &value)) {
 291                 g_hash_table_remove(hash_last_node, name);
 292                 g_free(key);
 293         }
 294
 295         g_hash_table_insert(hash_last_node, g_strdup(name), node);
 296 }
 297
 298 static gchar * get_parent_name(gchar * name)
 299 {
 300         gchar * p;
 301
 302         p = (gchar *) strrchr(name, '.');
 303         if (p == NULL)
 304                 return g_strdup("");
 305
 306         return g_strndup(name, p - name);
 307 }
 308
 309 static gchar * get_node_name(gchar * name)
 310 {
 311         gchar * p;
 312
 313         p = (gchar *) strrchr(name, '.');
 314         if (p == NULL)
 315                 return name;
 316
 317         return p + 1;
 318 }
 319
 320 static GtkCTreeNode * create_parent(GtkCTree * groups_tree, gchar * name)
 321 {
 322         gchar * cols[3];
 323         GtkCTreeNode * parent;
 324         GtkCTreeNode * node;
 325         gchar * parent_name;
 326
 327         if (* name == 0)
 328                 return;
 329
 330         if (hash_news_get_branch_node(name) != NULL)
 331                 return;
 332
 333         cols[0] = get_node_name(name);
 334         cols[1] = "";
 335         cols[2] = "";
 336
 337         parent_name = get_parent_name(name);
 338         create_parent(groups_tree, parent_name);
 339
 340         parent = hash_news_get_branch_node(parent_name);
 341         node = hash_news_get_last_node(parent_name);
 342         node = gtk_ctree_insert_node(groups_tree,
 343                                      parent, node,
 344                                      cols, 0, NULL, NULL,
 345                                      NULL, NULL,
 346                                      FALSE, FALSE);
 347         gtk_ctree_node_set_selectable(groups_tree, node, FALSE);
 348         hash_news_set_last_node(parent_name, node);
 349         hash_news_set_branch_node(name, node);
 350
 351         g_free(parent_name);
 352 }
 353
 354 static GtkCTreeNode * create_branch(GtkCTree * groups_tree, gchar * name,
 355                                     struct NNTPGroupInfo * info)
 356 {
 357         gchar * parent_name;
 358
 359         GtkCTreeNode * node;
 360         GtkCTreeNode * parent;
 361
 362         gchar count_str[10];
 363         gchar * cols[3];
 364         gint count;
 365
 366         count = info->last - info->first;
 367         if (count < 0)
 368                 count = 0;
 369         snprintf(count_str, 10, "%i", count);
 370
 371         cols[0] = get_node_name(info->name);
 372         cols[1] = count_str;
 373         if (info->type == 'y')
 374                 cols[2] = "";
 375         else if (info->type == 'm')
 376                 cols[2] = "moderated";
 377         else if (info->type == 'n')
 378                 cols[2] = "readonly";
 379         else
 380                 cols[2] = "unkown";
 381
 382         parent_name = get_parent_name(name);
 383
 384         create_parent(groups_tree, parent_name);
 385
 386         parent = hash_news_get_branch_node(parent_name);
 387         node = hash_news_get_last_node(parent_name);
 388         node = gtk_ctree_insert_node(groups_tree,
 389                                      parent, node,
 390                                      cols, 0, NULL, NULL,
 391                                      NULL, NULL,
 392                                      TRUE, FALSE);
 393         gtk_ctree_node_set_selectable(groups_tree, node, TRUE);
 394         hash_news_set_last_node(parent_name, node);
 395
 396         g_free(parent_name);
 397
 398         if (node == NULL)
 399                 return NULL;
 400
 401         gtk_ctree_node_set_row_data(GTK_CTREE(groups_tree), node, info);
 402
 403         return node;
 404 }
 405
 406 static void grouplist_dialog_set_list(gchar * pattern)
 407 {
 408         GSList *cur;
 409         GtkCTreeNode * node;
 410         GSList * group_list = NULL;
 411         GSList * r_list;
 412
 413         if (pattern == NULL)
 414                 pattern = "*";
 415
 416         if (locked) return;
 417         locked = TRUE;
 418
 419         grouplist_clear();
 420
 421         recv_set_ui_func(grouplist_recv_func, NULL);
 422         group_list = news_get_group_list(news_folder);
 423         recv_set_ui_func(NULL, NULL);
 424         if (group_list == NULL) {
 425                 alertpanel_error(_("Can't retrieve newsgroup list."));
 426                 locked = FALSE;
 427                 return;
 428         }
 429
 430         dont_unsubscribed = TRUE;
 431
 432         hash_news_init();
 433
 434         gtk_clist_freeze(GTK_CLIST(groups_tree));
 435
 436         r_list = g_slist_copy(group_list);
 437         r_list = g_slist_reverse(r_list);
 438
 439         for (cur = r_list; cur != NULL ; cur = cur->next) {
 440                 struct NNTPGroupInfo * info;
 441
 442                 info = (struct NNTPGroupInfo *) cur->data;
 443
 444                 if (fnmatch(pattern, info->name, 0) == 0) {
 445                         GList * l;
 446
 447                         node = create_branch(GTK_CTREE(groups_tree),
 448                                              info->name, info);
 449
 450                         l = g_list_find_custom(subscribed, info->name,
 451                                                (GCompareFunc) g_strcasecmp);
 452
 453                         if (l != NULL)
 454                           gtk_ctree_select(GTK_CTREE(groups_tree), node);
 455                 }
 456         }
 457
 458         g_slist_free(r_list);
 459
 460         hash_news_done();
 461
 462         node = gtk_ctree_node_nth(GTK_CTREE(groups_tree), 0);
 463         gtk_ctree_node_moveto(GTK_CTREE(groups_tree), node, 0, 0, 0);
 464
 465         dont_unsubscribed = FALSE;
 466
 467         gtk_clist_set_column_width(GTK_CLIST(groups_tree), 0, GROUPLIST_NAMES);
 468         gtk_clist_set_column_justification (GTK_CLIST(groups_tree), 1,
 469                                             GTK_JUSTIFY_RIGHT);
 470         gtk_clist_set_column_auto_resize(GTK_CLIST(groups_tree), 1, TRUE);
 471         gtk_clist_set_column_auto_resize(GTK_CLIST(groups_tree), 2, TRUE);
 472
 473         gtk_clist_thaw(GTK_CLIST(groups_tree));
 474
 475         gtk_widget_grab_focus(ok_button);
 476         gtk_widget_grab_focus(groups_tree);
 477
 478         gtk_label_set_text(GTK_LABEL(status_label), _("Done."));
 479
 480         locked = FALSE;
 481 }
 482
 483 static void grouplist_recv_func(SockInfo *sock, gint count, gint read_bytes,
 484                                 gpointer data)
 485 {
 486         gchar buf[BUFFSIZE];
 487
 488         g_snprintf(buf, sizeof(buf),
 489                    _("%d newsgroups received (%s read)"),
 490                    count, to_human_readable(read_bytes));
 491         gtk_label_set_text(GTK_LABEL(status_label), buf);
 492         GTK_EVENTS_FLUSH();
 493 }
 494
 495 static void ok_clicked(GtkWidget *widget, gpointer data)
 496 {
 497         gchar * str;
 498         gboolean update_list;
 499
 500         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 501
 502         update_list = FALSE;
 503
 504         if (strchr(str, '*') != NULL)
 505           update_list = TRUE;
 506
 507         if (update_list) {
 508                 grouplist_dialog_set_list(str);
 509                 g_free(str);
 510         }
 511         else {
 512                 g_free(str);
 513                 ack = TRUE;
 514                 if (gtk_main_level() > 1)
 515                         gtk_main_quit();
 516         }
 517 }
 518
 519 static void cancel_clicked(GtkWidget *widget, gpointer data)
 520 {
 521         ack = FALSE;
 522         if (gtk_main_level() > 1)
 523                 gtk_main_quit();
 524 }
 525
 526 static void refresh_clicked(GtkWidget *widget, gpointer data)
 527 {
 528         gchar * str;
 529
 530         if (locked) return;
 531
 532         news_cancel_group_list_cache(news_folder);
 533
 534         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 535         grouplist_dialog_set_list(str);
 536         g_free(str);
 537 }
 538
 539 static void key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 540 {
 541         if (event && event->keyval == GDK_Escape)
 542                 cancel_clicked(NULL, NULL);
 543 }
 544
 545 static void groups_tree_selected(GtkCTree *groups_tree, GtkCTreeNode * node,
 546                                  gint column,
 547                                  GdkEventButton *event, gpointer user_data)
 548 {
 549         struct NNTPGroupInfo * group;
 550         GList * l;
 551
 552         group = (struct NNTPGroupInfo *)
 553           gtk_ctree_node_get_row_data(GTK_CTREE(groups_tree), node);
 554
 555         if (group == NULL)
 556                 return;
 557
 558         if (!dont_unsubscribed) {
 559                 subscribed = g_list_append(subscribed, g_strdup(group->name));
 560         }
 561 }
 562
 563 static void groups_tree_unselected(GtkCTree *groups_tree, GtkCTreeNode * node,
 564                                    gint column,
 565                                    GdkEventButton *event, gpointer user_data)
 566 {
 567         struct NNTPGroupInfo * group;
 568         GList * l;
 569
 570         group = (struct NNTPGroupInfo *)
 571           gtk_ctree_node_get_row_data(GTK_CTREE(groups_tree), node);
 572
 573         if (group == NULL)
 574                 return;
 575
 576         if (!dont_unsubscribed) {
 577                 l = g_list_find_custom(subscribed, group->name,
 578                                        (GCompareFunc) g_strcasecmp);
 579                 if (l != NULL) {
 580                   g_free(l->data);
 581                         subscribed = g_list_remove(subscribed, l->data);
 582                 }
 583         }
 584 }
 585
 586 static void entry_activated(GtkEditable *editable)
 587 {
 588         gchar * str;
 589         gboolean update_list;
 590
 591         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 592
 593         update_list = FALSE;
 594
 595         if (strchr(str, '*') != NULL)
 596           update_list = TRUE;
 597
 598         if (update_list) {
 599                 grouplist_dialog_set_list(str);
 600                 g_free(str);
 601         }
 602         else {
 603                 g_free(str);
 604                 ok_clicked(NULL, NULL);
 605         }
 606 }