src/grouplistdialog.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2002 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/gtkctree.h>
  38 #include <gtk/gtkscrolledwindow.h>
  39 #include <gtk/gtkbutton.h>
  40 #include <gtk/gtkhbbox.h>
  41 #include <string.h>
  42 #include <fnmatch.h>
  43
  44 #include "intl.h"
  45 #include "grouplistdialog.h"
  46 #include "manage_window.h"
  47 #include "gtkutils.h"
  48 #include "utils.h"
  49 #include "news.h"
  50 #include "folder.h"
  51 #include "alertpanel.h"
  52 #include "recv.h"
  53 #include "socket.h"
  54
  55 #define GROUPLIST_DIALOG_WIDTH          450
  56 #define GROUPLIST_DIALOG_HEIGHT         400
  57 #define GROUPLIST_COL_NAME_WIDTH        250
  58
  59 static gboolean ack;
  60 static gboolean locked;
  61
  62 static GtkWidget *dialog;
  63 static GtkWidget *entry;
  64 static GtkWidget *ctree;
  65 static GtkWidget *status_label;
  66 static GtkWidget *ok_button;
  67 static GSList *group_list;
  68 static Folder *news_folder;
  69
  70 static GSList *subscribed;
  71
  72 static void grouplist_dialog_create     (void);
  73 static void grouplist_dialog_set_list   (const gchar    *pattern,
  74                                          gboolean        refresh);
  75 static void grouplist_search            (void);
  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 ctree_selected      (GtkCTree       *ctree,
  92                                  GtkCTreeNode   *node,
  93                                  gint            column,
  94                                  gpointer        data);
  95 static void ctree_unselected    (GtkCTree       *ctree,
  96                                  GtkCTreeNode   *node,
  97                                  gint            column,
  98                                  gpointer        data);
  99 static void entry_activated     (GtkEditable    *editable);
 100 static void search_clicked      (GtkWidget      *widget,
 101                                  gpointer        data);
 102
 103 GSList *grouplist_dialog(Folder *folder)
 104 {
 105         GNode *node;
 106         FolderItem *item;
 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_widget_grab_focus(ok_button);
 119         gtk_widget_grab_focus(ctree);
 120         GTK_EVENTS_FLUSH();
 121
 122         subscribed = NULL;
 123         for (node = folder->node->children; node != NULL; node = node->next) {
 124                 item = FOLDER_ITEM(node->data);
 125                 subscribed = g_slist_append(subscribed, g_strdup(item->path));
 126         }
 127
 128         grouplist_dialog_set_list(NULL, TRUE);
 129
 130         gtk_main();
 131
 132         manage_window_focus_out(dialog, NULL, NULL);
 133         gtk_widget_hide(dialog);
 134
 135         if (!ack) {
 136                 slist_free_strings(subscribed);
 137                 g_slist_free(subscribed);
 138                 subscribed = NULL;
 139
 140                 for (node = folder->node->children; node != NULL;
 141                      node = node->next) {
 142                         item = FOLDER_ITEM(node->data);
 143                         subscribed = g_slist_append(subscribed,
 144                                                     g_strdup(item->path));
 145                 }
 146         }
 147
 148         grouplist_clear();
 149
 150         return subscribed;
 151 }
 152
 153 static void grouplist_dialog_create(void)
 154 {
 155         GtkWidget *vbox;
 156         GtkWidget *hbox;
 157         GtkWidget *msg_label;
 158         GtkWidget *search_button;
 159         GtkWidget *confirm_area;
 160         GtkWidget *cancel_button;
 161         GtkWidget *refresh_button;
 162         GtkWidget *scrolledwin;
 163         gchar *titles[3];
 164         gint i;
 165
 166         dialog = gtk_dialog_new();
 167         gtk_window_set_policy(GTK_WINDOW(dialog), FALSE, TRUE, FALSE);
 168         gtk_widget_set_usize(dialog,
 169                              GROUPLIST_DIALOG_WIDTH, GROUPLIST_DIALOG_HEIGHT);
 170         gtk_container_set_border_width
 171                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
 172         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
 173         gtk_window_set_title(GTK_WINDOW(dialog), _("Subscribe to newsgroup"));
 174         gtk_signal_connect(GTK_OBJECT(dialog), "delete_event",
 175                            GTK_SIGNAL_FUNC(cancel_clicked), NULL);
 176         gtk_signal_connect(GTK_OBJECT(dialog), "key_press_event",
 177                            GTK_SIGNAL_FUNC(key_pressed), NULL);
 178         gtk_signal_connect(GTK_OBJECT(dialog), "focus_in_event",
 179                            GTK_SIGNAL_FUNC(manage_window_focus_in), NULL);
 180         gtk_signal_connect(GTK_OBJECT(dialog), "focus_out_event",
 181                            GTK_SIGNAL_FUNC(manage_window_focus_out), NULL);
 182
 183         gtk_widget_realize(dialog);
 184
 185         vbox = gtk_vbox_new(FALSE, 8);
 186         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
 187         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
 188
 189         hbox = gtk_hbox_new(FALSE, 0);
 190         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 191
 192         msg_label = gtk_label_new(_("Select newsgroups to subscribe."));
 193         gtk_box_pack_start(GTK_BOX(hbox), msg_label, FALSE, FALSE, 0);
 194
 195         hbox = gtk_hbox_new(FALSE, 8);
 196         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 197
 198         msg_label = gtk_label_new(_("Find groups:"));
 199         gtk_box_pack_start(GTK_BOX(hbox), msg_label, FALSE, FALSE, 0);
 200
 201         entry = gtk_entry_new();
 202         gtk_box_pack_start(GTK_BOX(hbox), entry, TRUE, TRUE, 0);
 203         gtk_signal_connect(GTK_OBJECT(entry), "activate",
 204                            GTK_SIGNAL_FUNC(entry_activated), NULL);
 205
 206         search_button = gtk_button_new_with_label(_(" Search "));
 207         gtk_box_pack_start(GTK_BOX(hbox), search_button, FALSE, FALSE, 0);
 208
 209         gtk_signal_connect(GTK_OBJECT(search_button), "clicked",
 210                            GTK_SIGNAL_FUNC(search_clicked), NULL);
 211
 212         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 213         gtk_box_pack_start(GTK_BOX (vbox), scrolledwin, TRUE, TRUE, 0);
 214         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW (scrolledwin),
 215                                        GTK_POLICY_AUTOMATIC,
 216                                        GTK_POLICY_AUTOMATIC);
 217
 218         titles[0] = _("Newsgroup name");
 219         titles[1] = _("Messages");
 220         titles[2] = _("Type");
 221         ctree = gtk_ctree_new_with_titles(3, 0, titles);
 222         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 223         gtk_clist_set_column_width
 224                 (GTK_CLIST(ctree), 0, GROUPLIST_COL_NAME_WIDTH);
 225         gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_MULTIPLE);
 226         gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_DOTTED);
 227         gtk_ctree_set_expander_style(GTK_CTREE(ctree),
 228                                      GTK_CTREE_EXPANDER_SQUARE);
 229         for (i = 0; i < 3; i++)
 230                 GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
 231                                        GTK_CAN_FOCUS);
 232         gtk_signal_connect(GTK_OBJECT(ctree), "tree_select_row",
 233                            GTK_SIGNAL_FUNC(ctree_selected), NULL);
 234         gtk_signal_connect(GTK_OBJECT(ctree), "tree_unselect_row",
 235                            GTK_SIGNAL_FUNC(ctree_unselected), NULL);
 236
 237         hbox = gtk_hbox_new(FALSE, 0);
 238         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 239
 240         status_label = gtk_label_new("");
 241         gtk_box_pack_start(GTK_BOX(hbox), status_label, FALSE, FALSE, 0);
 242
 243         gtkut_button_set_create(&confirm_area,
 244                                 &ok_button,      _("OK"),
 245                                 &cancel_button,  _("Cancel"),
 246                                 &refresh_button, _("Refresh"));
 247         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area),
 248                           confirm_area);
 249         gtk_widget_grab_default(ok_button);
 250
 251         gtk_signal_connect(GTK_OBJECT(ok_button), "clicked",
 252                            GTK_SIGNAL_FUNC(ok_clicked), NULL);
 253         gtk_signal_connect(GTK_OBJECT(cancel_button), "clicked",
 254                            GTK_SIGNAL_FUNC(cancel_clicked), NULL);
 255         gtk_signal_connect(GTK_OBJECT(refresh_button), "clicked",
 256                            GTK_SIGNAL_FUNC(refresh_clicked), NULL);
 257
 258         gtk_widget_show_all(GTK_DIALOG(dialog)->vbox);
 259 }
 260
 261 static GHashTable *branch_node_table;
 262
 263 static void grouplist_hash_init(void)
 264 {
 265         branch_node_table = g_hash_table_new(g_str_hash, g_str_equal);
 266 }
 267
 268 static void grouplist_hash_done(void)
 269 {
 270         hash_free_strings(branch_node_table);
 271         g_hash_table_destroy(branch_node_table);
 272 }
 273
 274 static GtkCTreeNode *grouplist_hash_get_branch_node(const gchar *name)
 275 {
 276         return g_hash_table_lookup(branch_node_table, name);
 277 }
 278
 279 static void grouplist_hash_set_branch_node(const gchar *name,
 280                                            GtkCTreeNode *node)
 281 {
 282         g_hash_table_insert(branch_node_table, g_strdup(name), node);
 283 }
 284
 285 static gchar *grouplist_get_parent_name(const gchar *name)
 286 {
 287         gchar *p;
 288
 289         p = strrchr(name, '.');
 290         if (!p)
 291                 return g_strdup("");
 292         return g_strndup(name, p - name);
 293 }
 294
 295 static GtkCTreeNode *grouplist_create_parent(const gchar *name,
 296                                              const gchar *pattern)
 297 {
 298         GtkCTreeNode *parent;
 299         GtkCTreeNode *node;
 300         gchar *cols[3];
 301         gchar *parent_name;
 302
 303         if (*name == '\0') return NULL;
 304         node = grouplist_hash_get_branch_node(name);
 305         if (node != NULL) return node;
 306
 307         cols[0] = (gchar *)name;
 308         cols[1] = cols[2] = "";
 309
 310         parent_name = grouplist_get_parent_name(name);
 311         parent = grouplist_create_parent(parent_name, pattern);
 312
 313         node = parent ? GTK_CTREE_ROW(parent)->children
 314                 : GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 315         node = gtk_ctree_insert_node(GTK_CTREE(ctree), parent, node,
 316                                      cols, 0, NULL, NULL, NULL, NULL,
 317                                      FALSE, FALSE);
 318         if (parent && fnmatch(pattern, parent_name, 0) != 0)
 319                 gtk_ctree_expand(GTK_CTREE(ctree), parent);
 320         gtk_ctree_node_set_selectable(GTK_CTREE(ctree), node, FALSE);
 321
 322         grouplist_hash_set_branch_node(name, node);
 323
 324         g_free(parent_name);
 325
 326         return node;
 327 }
 328
 329 static GtkCTreeNode *grouplist_create_branch(NewsGroupInfo *ginfo,
 330                                              const gchar *pattern)
 331 {
 332         GtkCTreeNode *node;
 333         GtkCTreeNode *parent;
 334         gchar *name = (gchar *)ginfo->name;
 335         gchar *parent_name;
 336         gchar *count_str;
 337         gchar *cols[3];
 338         gint count;
 339
 340         count = ginfo->last - ginfo->first;
 341         if (count < 0)
 342                 count = 0;
 343         count_str = itos(count);
 344
 345         cols[0] = ginfo->name;
 346         cols[1] = count_str;
 347         if (ginfo->type == 'y')
 348                 cols[2] = "";
 349         else if (ginfo->type == 'm')
 350                 cols[2] = _("moderated");
 351         else if (ginfo->type == 'n')
 352                 cols[2] = _("readonly");
 353         else
 354                 cols[2] = _("unknown");
 355
 356         parent_name = grouplist_get_parent_name(name);
 357         parent = grouplist_create_parent(parent_name, pattern);
 358         node = grouplist_hash_get_branch_node(name);
 359         if (node) {
 360                 gtk_ctree_set_node_info(GTK_CTREE(ctree), node, cols[0], 0,
 361                                         NULL, NULL, NULL, NULL, FALSE, FALSE);
 362                 gtk_ctree_node_set_text(GTK_CTREE(ctree), node, 1, cols[1]);
 363                 gtk_ctree_node_set_text(GTK_CTREE(ctree), node, 2, cols[2]);
 364         } else {
 365                 node = parent ? GTK_CTREE_ROW(parent)->children
 366                         : GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 367                 node = gtk_ctree_insert_node(GTK_CTREE(ctree), parent, node,
 368                                              cols, 0, NULL, NULL, NULL, NULL,
 369                                              TRUE, FALSE);
 370                 if (parent && fnmatch(pattern, parent_name, 0) != 0)
 371                         gtk_ctree_expand(GTK_CTREE(ctree), parent);
 372         }
 373         gtk_ctree_node_set_selectable(GTK_CTREE(ctree), node, TRUE);
 374         if (node)
 375                 gtk_ctree_node_set_row_data(GTK_CTREE(ctree), node, ginfo);
 376
 377         g_free(parent_name);
 378
 379         return node;
 380 }
 381
 382 static void grouplist_dialog_set_list(const gchar *pattern, gboolean refresh)
 383 {
 384         GSList *cur;
 385         GtkCTreeNode *node;
 386
 387         if (locked) return;
 388         locked = TRUE;
 389
 390         if (!pattern || *pattern == '\0')
 391                 pattern = "*";
 392
 393         if (refresh) {
 394                 grouplist_clear();
 395                 recv_set_ui_func(grouplist_recv_func, NULL);
 396                 group_list = news_get_group_list(news_folder);
 397                 group_list = g_slist_reverse(group_list);
 398                 recv_set_ui_func(NULL, NULL);
 399                 if (group_list == NULL) {
 400                         alertpanel_error(_("Can't retrieve newsgroup list."));
 401                         locked = FALSE;
 402                         return;
 403                 }
 404         } else {
 405                 gtk_signal_handler_block_by_func
 406                         (GTK_OBJECT(ctree), GTK_SIGNAL_FUNC(ctree_unselected),
 407                          NULL);
 408                 gtk_clist_clear(GTK_CLIST(ctree));
 409                 gtk_signal_handler_unblock_by_func
 410                         (GTK_OBJECT(ctree), GTK_SIGNAL_FUNC(ctree_unselected),
 411                          NULL);
 412         }
 413         gtk_entry_set_text(GTK_ENTRY(entry), pattern);
 414
 415         grouplist_hash_init();
 416
 417         gtk_clist_freeze(GTK_CLIST(ctree));
 418
 419         gtk_signal_handler_block_by_func(GTK_OBJECT(ctree),
 420                                          GTK_SIGNAL_FUNC(ctree_selected),
 421                                          NULL);
 422
 423         for (cur = group_list; cur != NULL ; cur = cur->next) {
 424                 NewsGroupInfo *ginfo = (NewsGroupInfo *)cur->data;
 425
 426                 if (fnmatch(pattern, ginfo->name, 0) == 0) {
 427                         node = grouplist_create_branch(ginfo, pattern);
 428                         if (g_slist_find_custom(subscribed, ginfo->name,
 429                                                 (GCompareFunc)g_strcasecmp)
 430                             != NULL)
 431                                 gtk_ctree_select(GTK_CTREE(ctree), node);
 432                 }
 433         }
 434
 435         gtk_signal_handler_unblock_by_func(GTK_OBJECT(ctree),
 436                                            GTK_SIGNAL_FUNC(ctree_selected),
 437                                            NULL);
 438
 439         gtk_clist_thaw(GTK_CLIST(ctree));
 440
 441         grouplist_hash_done();
 442
 443         gtk_label_set_text(GTK_LABEL(status_label), _("Done."));
 444
 445         locked = FALSE;
 446 }
 447
 448 static void grouplist_search(void)
 449 {
 450         gchar *str;
 451
 452         if (locked) return;
 453
 454         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 455         grouplist_dialog_set_list(str, FALSE);
 456         g_free(str);
 457 }
 458
 459 static void grouplist_clear(void)
 460 {
 461         gtk_signal_handler_block_by_func(GTK_OBJECT(ctree),
 462                                          GTK_SIGNAL_FUNC(ctree_unselected),
 463                                          NULL);
 464         gtk_clist_clear(GTK_CLIST(ctree));
 465         gtk_entry_set_text(GTK_ENTRY(entry), "");
 466         news_group_list_free(group_list);
 467         group_list = NULL;
 468         gtk_signal_handler_unblock_by_func(GTK_OBJECT(ctree),
 469                                            GTK_SIGNAL_FUNC(ctree_unselected),
 470                                            NULL);
 471 }
 472
 473 static void grouplist_recv_func(SockInfo *sock, gint count, gint read_bytes,
 474                                 gpointer data)
 475 {
 476         gchar buf[BUFFSIZE];
 477
 478         g_snprintf(buf, sizeof(buf),
 479                    _("%d newsgroups received (%s read)"),
 480                    count, to_human_readable(read_bytes));
 481         gtk_label_set_text(GTK_LABEL(status_label), buf);
 482         GTK_EVENTS_FLUSH();
 483 }
 484
 485 static void ok_clicked(GtkWidget *widget, gpointer data)
 486 {
 487         ack = TRUE;
 488         if (gtk_main_level() > 1)
 489                 gtk_main_quit();
 490 }
 491
 492 static void cancel_clicked(GtkWidget *widget, gpointer data)
 493 {
 494         ack = FALSE;
 495         if (gtk_main_level() > 1)
 496                 gtk_main_quit();
 497 }
 498
 499 static void refresh_clicked(GtkWidget *widget, gpointer data)
 500 {
 501         gchar *str;
 502
 503         if (locked) return;
 504
 505         news_remove_group_list_cache(news_folder);
 506
 507         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 508         grouplist_dialog_set_list(str, TRUE);
 509         g_free(str);
 510 }
 511
 512 static void key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 513 {
 514         if (event && event->keyval == GDK_Escape)
 515                 cancel_clicked(NULL, NULL);
 516 }
 517
 518 static void ctree_selected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
 519                            gpointer data)
 520 {
 521         NewsGroupInfo *ginfo;
 522
 523         ginfo = gtk_ctree_node_get_row_data(ctree, node);
 524         if (!ginfo) return;
 525
 526         subscribed = g_slist_append(subscribed, g_strdup(ginfo->name));
 527 }
 528
 529 static void ctree_unselected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
 530                              gpointer data)
 531 {
 532         NewsGroupInfo *ginfo;
 533         GSList *list;
 534
 535         ginfo = gtk_ctree_node_get_row_data(ctree, node);
 536         if (!ginfo) return;
 537
 538         list = g_slist_find_custom(subscribed, ginfo->name,
 539                                    (GCompareFunc)g_strcasecmp);
 540         if (list) {
 541                 g_free(list->data);
 542                 subscribed = g_slist_remove(subscribed, list->data);
 543         }
 544 }
 545
 546 static void entry_activated(GtkEditable *editable)
 547 {
 548         grouplist_search();
 549 }
 550
 551 static void search_clicked(GtkWidget *widget, gpointer data)
 552 {
 553         grouplist_search();
 554 }