src/grouplistdialog.c

   1 /*
   2  * Claws Mail -- a GTK based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2024 the Claws Mail team and 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 3 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, see <http://www.gnu.org/licenses/>.
  17  *
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #include "claws-features.h"
  23 #endif
  24
  25 #include "defs.h"
  26
  27 #include <glib.h>
  28 #include <glib/gi18n.h>
  29 #include <gdk/gdkkeysyms.h>
  30 #include <gtk/gtk.h>
  31 #include <string.h>
  32
  33 #include "grouplistdialog.h"
  34 #include "mainwindow.h"
  35 #include "manage_window.h"
  36 #include "gtkutils.h"
  37 #include "utils.h"
  38 #include "news.h"
  39 #include "folder.h"
  40 #include "alertpanel.h"
  41 #include "recv.h"
  42 #include "socket.h"
  43 #include "prefs_common.h"
  44
  45 #define GROUPLIST_DIALOG_WIDTH          450
  46 #define GROUPLIST_DIALOG_HEIGHT         400
  47 #define GROUPLIST_COL_NAME_WIDTH        250
  48
  49 static gboolean ack;
  50 static gboolean locked;
  51
  52 static GtkWidget *dialog;
  53 static GtkWidget *entry;
  54 static GtkWidget *ctree;
  55 static GtkWidget *status_label;
  56 static GtkWidget *ok_button;
  57 static GSList *group_list;
  58 static Folder *news_folder;
  59
  60 static GSList *subscribed;
  61
  62 static void grouplist_dialog_create     (void);
  63 static void grouplist_dialog_set_list   (const gchar    *pattern,
  64                                          gboolean        refresh);
  65 static void grouplist_search            (void);
  66 static void grouplist_clear             (void);
  67 static gboolean grouplist_recv_func     (SockInfo       *sock,
  68                                          gint            count,
  69                                          gint            read_bytes,
  70                                          gpointer        data);
  71 static void grouplist_size_allocate     (GtkWidget *widget,
  72                                          GtkAllocation *allocation);
  73
  74 static gint window_deleted      (GtkWidget      *widget,
  75                                  GdkEventAny    *event,
  76                                  gpointer        data);
  77 static void ok_clicked          (GtkWidget      *widget,
  78                                  gpointer        data);
  79 static void cancel_clicked      (GtkWidget      *widget,
  80                                  gpointer        data);
  81 static void refresh_clicked     (GtkWidget      *widget,
  82                                  gpointer        data);
  83 static gboolean key_pressed     (GtkWidget      *widget,
  84                                  GdkEventKey    *event,
  85                                  gpointer        data);
  86 static gboolean button_press_cb (GtkCMCTree     *ctree,
  87                                  GdkEventButton *button,
  88                                  gpointer        data);
  89 static void entry_activated     (GtkEditable    *editable);
  90 static void search_clicked      (GtkWidget      *widget,
  91                                  gpointer        data);
  92
  93 GSList *grouplist_dialog(Folder *folder)
  94 {
  95         GNode *node;
  96         FolderItem *item;
  97
  98         if (dialog && gtk_widget_get_visible(dialog)) return NULL;
  99
 100         if (!dialog)
 101                 grouplist_dialog_create();
 102
 103         news_folder = folder;
 104
 105         gtk_widget_show(dialog);
 106         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
 107         manage_window_set_transient(GTK_WINDOW(dialog));
 108         gtk_widget_grab_focus(ok_button);
 109         gtk_widget_grab_focus(ctree);
 110         GTK_EVENTS_FLUSH();
 111
 112         subscribed = NULL;
 113         for (node = folder->node->children; node != NULL; node = node->next) {
 114                 item = FOLDER_ITEM(node->data);
 115                 subscribed = g_slist_append(subscribed, g_strdup(item->path));
 116         }
 117
 118         grouplist_dialog_set_list(NULL, TRUE);
 119
 120         if (ack) {
 121                 gtk_window_set_keep_above(GTK_WINDOW(dialog), TRUE);
 122                 gtk_main();
 123         }
 124
 125         manage_window_focus_out(dialog, NULL, NULL);
 126         gtk_widget_hide(dialog);
 127
 128         if (!ack) {
 129                 slist_free_strings_full(subscribed);
 130                 subscribed = NULL;
 131
 132                 for (node = folder->node->children; node != NULL;
 133                      node = node->next) {
 134                         item = FOLDER_ITEM(node->data);
 135                         subscribed = g_slist_append(subscribed,
 136                                                     g_strdup(item->path));
 137                 }
 138         }
 139
 140         grouplist_clear();
 141
 142         return subscribed;
 143 }
 144
 145 static void grouplist_dialog_create(void)
 146 {
 147         GtkWidget *grid;
 148         GtkWidget *hgrid;
 149         GtkWidget *msg_label;
 150         GtkWidget *search_button;
 151         GtkWidget *cancel_button;
 152         GtkWidget *refresh_button;
 153         GtkWidget *scrolledwin;
 154         static GdkGeometry geometry;
 155         gchar *titles[3];
 156         gint i;
 157
 158         dialog = gtk_dialog_new();
 159         gtk_window_set_resizable(GTK_WINDOW(dialog), TRUE);
 160         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
 161         gtk_window_set_title(GTK_WINDOW(dialog), _("Newsgroup subscription"));
 162         g_signal_connect(G_OBJECT(dialog), "delete_event",
 163                          G_CALLBACK(window_deleted), NULL);
 164         g_signal_connect(G_OBJECT(dialog), "key_press_event",
 165                          G_CALLBACK(key_pressed), NULL);
 166         g_signal_connect(G_OBJECT(dialog), "size_allocate",
 167                          G_CALLBACK(grouplist_size_allocate), NULL);
 168         MANAGE_WINDOW_SIGNALS_CONNECT(dialog);
 169
 170         grid = gtk_grid_new();
 171         gtk_grid_set_row_spacing(GTK_GRID(grid), 8);
 172         gtk_container_set_border_width(GTK_CONTAINER(grid), 8);
 173         gtk_orientable_set_orientation(GTK_ORIENTABLE(grid),
 174                         GTK_ORIENTATION_VERTICAL);
 175         gtk_container_add(GTK_CONTAINER(
 176                                 gtk_dialog_get_content_area(GTK_DIALOG(dialog))), grid);
 177
 178         msg_label = gtk_label_new(_("Select newsgroups for subscription:"));
 179         gtk_widget_set_hexpand(msg_label, TRUE);
 180         gtk_widget_set_vexpand(msg_label, FALSE);
 181         gtk_widget_set_halign(msg_label, GTK_ALIGN_START);
 182         gtk_container_add(GTK_CONTAINER(grid), msg_label);
 183
 184         hgrid = gtk_grid_new();
 185         gtk_grid_set_column_spacing(GTK_GRID(hgrid), 8);
 186         gtk_orientable_set_orientation(GTK_ORIENTABLE(hgrid),
 187                         GTK_ORIENTATION_HORIZONTAL);
 188         gtk_widget_set_hexpand(hgrid, TRUE);
 189         gtk_widget_set_vexpand(hgrid, FALSE);
 190         gtk_container_add(GTK_CONTAINER(grid), hgrid);
 191
 192         msg_label = gtk_label_new(_("Find groups:"));
 193         gtk_container_add(GTK_CONTAINER(hgrid), msg_label);
 194
 195         entry = gtk_entry_new();
 196         gtk_widget_set_hexpand(entry, TRUE);
 197         gtk_container_add(GTK_CONTAINER(hgrid), entry);
 198         g_signal_connect(G_OBJECT(entry), "activate",
 199                          G_CALLBACK(entry_activated), NULL);
 200
 201         search_button = gtk_button_new_with_label(_(" Search "));
 202         gtk_container_add(GTK_CONTAINER(hgrid), search_button);
 203
 204         g_signal_connect(G_OBJECT(search_button), "clicked",
 205                          G_CALLBACK(search_clicked), NULL);
 206
 207         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 208         gtk_widget_set_hexpand(scrolledwin, TRUE);
 209         gtk_widget_set_vexpand(scrolledwin, TRUE);
 210         gtk_container_add(GTK_CONTAINER(grid), scrolledwin);
 211         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW (scrolledwin),
 212                                        GTK_POLICY_AUTOMATIC,
 213                                        GTK_POLICY_AUTOMATIC);
 214
 215         titles[0] = _("Newsgroup name");
 216         titles[1] = _("Messages");
 217         titles[2] = _("Type");
 218         ctree = gtk_sctree_new_with_titles(3, 0, titles);
 219         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 220         gtk_cmclist_set_column_width
 221                 (GTK_CMCLIST(ctree), 0, GROUPLIST_COL_NAME_WIDTH);
 222         gtk_cmclist_set_column_auto_resize(GTK_CMCLIST(ctree), 0, TRUE);
 223         gtk_cmclist_set_selection_mode(GTK_CMCLIST(ctree), GTK_SELECTION_MULTIPLE);
 224
 225         gtk_cmctree_set_expander_style(GTK_CMCTREE(ctree),
 226                                 GTK_CMCTREE_EXPANDER_TRIANGLE);
 227
 228         for (i = 0; i < 3; i++)
 229                 gtk_widget_set_can_focus(GTK_CMCLIST(ctree)->column[i].button, FALSE);
 230         g_signal_connect(G_OBJECT(ctree), "button-press-event",
 231                          G_CALLBACK(button_press_cb), NULL);
 232
 233         status_label = gtk_label_new("");
 234         gtk_widget_set_hexpand(status_label, TRUE);
 235         gtk_widget_set_vexpand(status_label, FALSE);
 236         gtk_widget_set_halign(status_label, GTK_ALIGN_START);
 237         gtk_container_add(GTK_CONTAINER(grid), status_label);
 238
 239         refresh_button = gtk_dialog_add_button(GTK_DIALOG(dialog), _("_Refresh"),
 240                                                GTK_RESPONSE_NONE);
 241         cancel_button = gtk_dialog_add_button(GTK_DIALOG(dialog),_("_Cancel"),
 242                                               GTK_RESPONSE_NONE);
 243         ok_button = gtk_dialog_add_button(GTK_DIALOG(dialog),_("_OK"),
 244                                           GTK_RESPONSE_NONE);
 245         gtk_widget_grab_default(ok_button);
 246
 247         g_signal_connect(G_OBJECT(ok_button), "clicked",
 248                          G_CALLBACK(ok_clicked), NULL);
 249         g_signal_connect(G_OBJECT(cancel_button), "clicked",
 250                          G_CALLBACK(cancel_clicked), NULL);
 251         g_signal_connect(G_OBJECT(refresh_button), "clicked",
 252                          G_CALLBACK(refresh_clicked), NULL);
 253
 254         if (!geometry.min_width) {
 255                 geometry.min_width = GROUPLIST_DIALOG_WIDTH;
 256                 geometry.min_height = GROUPLIST_DIALOG_HEIGHT;
 257         }
 258
 259         gtk_window_set_geometry_hints(GTK_WINDOW(dialog), NULL, &geometry,
 260                                       GDK_HINT_MIN_SIZE);
 261         gtk_window_set_default_size(GTK_WINDOW(dialog),
 262                                         prefs_common.news_subscribe_width,
 263                                         prefs_common.news_subscribe_height);
 264
 265         gtk_widget_show_all(gtk_dialog_get_content_area(GTK_DIALOG(dialog)));
 266 }
 267
 268 static GHashTable *branch_node_table;
 269
 270 static void grouplist_hash_init(void)
 271 {
 272         branch_node_table = g_hash_table_new(g_str_hash, g_str_equal);
 273 }
 274
 275 static void grouplist_hash_done(void)
 276 {
 277         hash_free_strings(branch_node_table);
 278         g_hash_table_destroy(branch_node_table);
 279 }
 280
 281 static GtkCMCTreeNode *grouplist_hash_get_branch_node(const gchar *name)
 282 {
 283         return g_hash_table_lookup(branch_node_table, name);
 284 }
 285
 286 static void grouplist_hash_set_branch_node(const gchar *name,
 287                                            GtkCMCTreeNode *node)
 288 {
 289         g_hash_table_insert(branch_node_table, g_strdup(name), node);
 290 }
 291
 292 static gchar *grouplist_get_parent_name(const gchar *name)
 293 {
 294         gchar *p;
 295
 296         p = strrchr(name, '.');
 297         if (!p)
 298                 return g_strdup("");
 299         return g_strndup(name, p - name);
 300 }
 301
 302 static GtkCMCTreeNode *grouplist_create_parent(const gchar *name,
 303                                              const gchar *pattern)
 304 {
 305         GtkCMCTreeNode *parent;
 306         GtkCMCTreeNode *node;
 307         gchar *cols[3];
 308         gchar *parent_name;
 309
 310         if (*name == '\0') return NULL;
 311         node = grouplist_hash_get_branch_node(name);
 312         if (node != NULL) return node;
 313
 314         cols[0] = (gchar *)name;
 315         cols[1] = cols[2] = "";
 316
 317         parent_name = grouplist_get_parent_name(name);
 318         parent = grouplist_create_parent(parent_name, pattern);
 319
 320         node = parent ? GTK_CMCTREE_ROW(parent)->children
 321                 : GTK_CMCTREE_NODE(GTK_CMCLIST(ctree)->row_list);
 322         node = gtk_sctree_insert_node(GTK_CMCTREE(ctree), parent, node,
 323                                      cols, 0, NULL, NULL,
 324                                      FALSE, FALSE);
 325         if (parent && g_pattern_match_simple(pattern, parent_name) == FALSE)
 326                 gtk_cmctree_expand(GTK_CMCTREE(ctree), parent);
 327         gtk_cmctree_node_set_selectable(GTK_CMCTREE(ctree), node, FALSE);
 328
 329         grouplist_hash_set_branch_node(name, node);
 330
 331         g_free(parent_name);
 332
 333         return node;
 334 }
 335
 336 static GtkCMCTreeNode *grouplist_create_branch(NewsGroupInfo *ginfo,
 337                                              const gchar *pattern)
 338 {
 339         GtkCMCTreeNode *node;
 340         GtkCMCTreeNode *parent;
 341         gchar *name = (gchar *)ginfo->name;
 342         gchar *parent_name;
 343         gchar *count_str;
 344         gchar *cols[3];
 345         gint count;
 346
 347         count = ginfo->last - ginfo->first;
 348         if (count < 0)
 349                 count = 0;
 350         count_str = itos(count);
 351
 352         cols[0] = ginfo->name;
 353         cols[1] = count_str;
 354         if (ginfo->type == 'y')
 355                 cols[2] = "";
 356         else if (ginfo->type == 'm')
 357                 cols[2] = _("moderated");
 358         else if (ginfo->type == 'n')
 359                 cols[2] = _("read-only");
 360         else
 361                 cols[2] = _("unknown");
 362
 363         parent_name = grouplist_get_parent_name(name);
 364         parent = grouplist_create_parent(parent_name, pattern);
 365         node = grouplist_hash_get_branch_node(name);
 366         if (node) {
 367                 gtk_cmctree_set_node_info(GTK_CMCTREE(ctree), node, cols[0], 0,
 368                                         NULL, NULL, FALSE, FALSE);
 369                 gtk_cmctree_node_set_text(GTK_CMCTREE(ctree), node, 1, cols[1]);
 370                 gtk_cmctree_node_set_text(GTK_CMCTREE(ctree), node, 2, cols[2]);
 371         } else {
 372                 node = parent ? GTK_CMCTREE_ROW(parent)->children
 373                         : GTK_CMCTREE_NODE(GTK_CMCLIST(ctree)->row_list);
 374                 node = gtk_sctree_insert_node(GTK_CMCTREE(ctree), parent, node,
 375                                              cols, 0, NULL, NULL,
 376                                              TRUE, FALSE);
 377                 if (parent &&
 378                     g_pattern_match_simple(pattern, parent_name) == FALSE)
 379                         gtk_cmctree_expand(GTK_CMCTREE(ctree), parent);
 380         }
 381         gtk_cmctree_node_set_selectable(GTK_CMCTREE(ctree), node, TRUE);
 382         if (node)
 383                 gtk_cmctree_node_set_row_data(GTK_CMCTREE(ctree), node, ginfo);
 384
 385         g_free(parent_name);
 386
 387         return node;
 388 }
 389
 390 static void grouplist_expand_upwards(GtkCMCTree *ctree, const gchar *name) {
 391         const gchar *ptr;
 392         gchar *newname=g_malloc0(strlen(name) + 1);
 393         GtkCMCTreeNode *node;
 394
 395         for (ptr=name; *ptr; ptr++) {
 396                 if (*ptr == '.') {
 397                         node = grouplist_hash_get_branch_node(newname);
 398                         if (node != NULL)
 399                                 gtk_cmctree_expand(ctree, node);
 400                 }
 401                 newname[ptr-name] = *ptr;
 402         }
 403         g_free(newname);
 404 }
 405
 406 static void grouplist_dialog_set_list(const gchar *pattern, gboolean refresh)
 407 {
 408         static GdkCursor *watch_cursor = NULL;
 409         GSList *cur;
 410         GtkCMCTreeNode *node;
 411         GPatternSpec *pspec;
 412         GdkWindow *window;
 413
 414         if (locked) return;
 415         locked = TRUE;
 416
 417         if (!pattern || *pattern == '\0')
 418                 pattern = "*";
 419
 420         window = gtk_widget_get_window(dialog);
 421         if (!watch_cursor)
 422                 watch_cursor = gdk_cursor_new_for_display(
 423                                 gdk_window_get_display(window), GDK_WATCH);
 424         gdk_window_set_cursor(window, watch_cursor);
 425         main_window_cursor_wait(mainwindow_get_mainwindow());
 426         GTK_EVENTS_FLUSH();
 427
 428         if (refresh) {
 429                 ack = TRUE;
 430                 grouplist_clear();
 431                 recv_set_ui_func(grouplist_recv_func, NULL);
 432                 group_list = news_get_group_list(news_folder);
 433                 group_list = g_slist_reverse(group_list);
 434                 recv_set_ui_func(NULL, NULL);
 435                 if (group_list == NULL && ack == TRUE) {
 436                         alertpanel_error(_("Can't retrieve newsgroup list."));
 437                         locked = FALSE;
 438                         gdk_window_set_cursor(window, NULL);
 439                         main_window_cursor_normal(mainwindow_get_mainwindow());
 440                         return;
 441                 }
 442         } else
 443                 gtk_cmclist_clear(GTK_CMCLIST(ctree));
 444
 445         gtk_entry_set_text(GTK_ENTRY(entry), pattern);
 446
 447         grouplist_hash_init();
 448
 449         gtk_cmclist_freeze(GTK_CMCLIST(ctree));
 450
 451         pspec = g_pattern_spec_new(pattern);
 452
 453         for (cur = group_list; cur != NULL ; cur = cur->next) {
 454                 NewsGroupInfo *ginfo = (NewsGroupInfo *)cur->data;
 455 #if GLIB_CHECK_VERSION(2,70,0)
 456                 if (g_pattern_spec_match_string(pspec, ginfo->name)) {
 457 #else
 458                 if (g_pattern_match_string(pspec, ginfo->name)) {
 459 #endif
 460                         node = grouplist_create_branch(ginfo, pattern);
 461                         if (g_slist_find_custom(subscribed, ginfo->name,
 462                                                 (GCompareFunc)g_ascii_strcasecmp)
 463                             != NULL)
 464                                 gtk_cmctree_select(GTK_CMCTREE(ctree), node);
 465                 }
 466         }
 467         for (cur = subscribed; cur; cur = g_slist_next(cur))
 468                 grouplist_expand_upwards(GTK_CMCTREE(ctree), (gchar *)cur->data);
 469
 470         g_pattern_spec_free(pspec);
 471
 472         gtk_cmclist_thaw(GTK_CMCLIST(ctree));
 473
 474         grouplist_hash_done();
 475
 476         gtk_label_set_text(GTK_LABEL(status_label), _("Done."));
 477
 478         gdk_window_set_cursor(window, NULL);
 479         main_window_cursor_normal(mainwindow_get_mainwindow());
 480
 481         locked = FALSE;
 482 }
 483
 484 static void grouplist_search(void)
 485 {
 486         gchar *str;
 487
 488         if (locked) return;
 489
 490         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 491         grouplist_dialog_set_list(str, FALSE);
 492         g_free(str);
 493 }
 494
 495 static void grouplist_clear(void)
 496 {
 497         gtk_cmclist_clear(GTK_CMCLIST(ctree));
 498         gtk_entry_set_text(GTK_ENTRY(entry), "");
 499         news_group_list_free(group_list);
 500         group_list = NULL;
 501 }
 502
 503 static gboolean grouplist_recv_func(SockInfo *sock, gint count, gint read_bytes,
 504                                     gpointer data)
 505 {
 506         gchar buf[BUFFSIZE];
 507
 508         g_snprintf(buf, sizeof(buf),
 509                    _("%d newsgroups received (%s read)"),
 510                    count, to_human_readable((goffset)read_bytes));
 511         gtk_label_set_text(GTK_LABEL(status_label), buf);
 512         GTK_EVENTS_FLUSH();
 513         if (ack == FALSE)
 514                 return FALSE;
 515         else
 516                 return TRUE;
 517 }
 518
 519 static void grouplist_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
 520 {
 521         cm_return_if_fail( allocation != NULL );
 522
 523         gtk_window_get_size(GTK_WINDOW(widget),
 524                 &prefs_common.news_subscribe_width, &prefs_common.news_subscribe_height);
 525 }
 526
 527 static gint window_deleted(GtkWidget *widget, GdkEventAny *event, gpointer data)
 528 {
 529         ack = FALSE;
 530         if (gtk_main_level() > 1)
 531                 gtk_main_quit();
 532
 533         return TRUE;
 534 }
 535
 536 static void ok_clicked(GtkWidget *widget, gpointer data)
 537 {
 538         ack = TRUE;
 539         if (gtk_main_level() > 1)
 540                 gtk_main_quit();
 541 }
 542
 543 static void cancel_clicked(GtkWidget *widget, gpointer data)
 544 {
 545         ack = FALSE;
 546         if (gtk_main_level() > 1)
 547                 gtk_main_quit();
 548 }
 549
 550 static void refresh_clicked(GtkWidget *widget, gpointer data)
 551 {
 552         gchar *str;
 553
 554         if (locked) return;
 555
 556         news_remove_group_list_cache(news_folder);
 557
 558         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 559         grouplist_dialog_set_list(str, TRUE);
 560         g_free(str);
 561 }
 562
 563 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 564 {
 565         if (event && event->keyval == GDK_KEY_Escape)
 566                 cancel_clicked(NULL, NULL);
 567         return FALSE;
 568 }
 569
 570 /* clist/ctree clear old selection on click (gtk2 only)
 571  * - intercept all button clicks (always return TRUE)
 572  * - only allow left button single click
 573  * - handle click on expander
 574  * - update "subscribed" list and un-/select row
 575  */
 576 static gboolean button_press_cb(GtkCMCTree *ctree, GdkEventButton *button,
 577                                 gpointer data)
 578 {
 579         gint row, col;
 580         GtkCMCTreeNode *node;
 581         NewsGroupInfo *ginfo;
 582         GSList *list;
 583
 584         if (button->type != GDK_BUTTON_PRESS) return TRUE;
 585         if (button->button != 1) return TRUE;
 586         if (button->window != GTK_CMCLIST(ctree)->clist_window) return TRUE;
 587
 588         if (!gtk_cmclist_get_selection_info(GTK_CMCLIST(ctree),
 589                                      button->x, button->y, &row, &col))
 590                 return TRUE;
 591         node = gtk_cmctree_node_nth(ctree, row);
 592         if (!node) return TRUE;
 593
 594         if (gtk_cmctree_is_hot_spot(ctree, button->x, button->y)) {
 595                 gtk_cmctree_toggle_expansion(ctree, node);
 596                 return TRUE;
 597         }
 598
 599         ginfo = gtk_cmctree_node_get_row_data(ctree, node);
 600         if (!ginfo) return TRUE;
 601
 602         list = g_slist_find_custom(subscribed, ginfo->name,
 603                                    (GCompareFunc)g_ascii_strcasecmp);
 604         if (list) {
 605                 /*
 606                  * Make a copy so we can g_free() it after we remove
 607                  * list from the subscribed list.  Calling g_free()
 608                  * first triggers a use-after-free Coverity issue.
 609                  */
 610                 gpointer tmpdata = list->data;
 611                 subscribed = g_slist_remove(subscribed, list->data);
 612                 g_free(tmpdata);
 613                 gtk_cmclist_unselect_row(GTK_CMCLIST(ctree), row, 0);
 614         } else {
 615                 subscribed = g_slist_append(subscribed, g_strdup(ginfo->name));
 616                 gtk_cmclist_select_row(GTK_CMCLIST(ctree), row, 0);
 617         }
 618
 619         return TRUE;
 620 }
 621
 622 static void entry_activated(GtkEditable *editable)
 623 {
 624         grouplist_search();
 625 }
 626
 627 static void search_clicked(GtkWidget *widget, gpointer data)
 628 {
 629         grouplist_search();
 630 }