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 gboolean 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         if (ack) 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         MANAGE_WINDOW_SIGNALS_CONNECT(dialog);
 179
 180         gtk_widget_realize(dialog);
 181
 182         vbox = gtk_vbox_new(FALSE, 8);
 183         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
 184         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
 185
 186         hbox = gtk_hbox_new(FALSE, 0);
 187         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 188
 189         msg_label = gtk_label_new(_("Select newsgroups to subscribe."));
 190         gtk_box_pack_start(GTK_BOX(hbox), msg_label, FALSE, FALSE, 0);
 191
 192         hbox = gtk_hbox_new(FALSE, 8);
 193         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 194
 195         msg_label = gtk_label_new(_("Find groups:"));
 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(hbox), entry, TRUE, TRUE, 0);
 200         gtk_signal_connect(GTK_OBJECT(entry), "activate",
 201                            GTK_SIGNAL_FUNC(entry_activated), NULL);
 202
 203         search_button = gtk_button_new_with_label(_(" Search "));
 204         gtk_box_pack_start(GTK_BOX(hbox), search_button, FALSE, FALSE, 0);
 205
 206         gtk_signal_connect(GTK_OBJECT(search_button), "clicked",
 207                            GTK_SIGNAL_FUNC(search_clicked), NULL);
 208
 209         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 210         gtk_box_pack_start(GTK_BOX (vbox), scrolledwin, TRUE, TRUE, 0);
 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_ctree_new_with_titles(3, 0, titles);
 219         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 220         gtk_clist_set_column_width
 221                 (GTK_CLIST(ctree), 0, GROUPLIST_COL_NAME_WIDTH);
 222         gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_MULTIPLE);
 223         gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_DOTTED);
 224         gtk_ctree_set_expander_style(GTK_CTREE(ctree),
 225                                      GTK_CTREE_EXPANDER_SQUARE);
 226         for (i = 0; i < 3; i++)
 227                 GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
 228                                        GTK_CAN_FOCUS);
 229         gtk_signal_connect(GTK_OBJECT(ctree), "tree_select_row",
 230                            GTK_SIGNAL_FUNC(ctree_selected), NULL);
 231         gtk_signal_connect(GTK_OBJECT(ctree), "tree_unselect_row",
 232                            GTK_SIGNAL_FUNC(ctree_unselected), NULL);
 233
 234         hbox = gtk_hbox_new(FALSE, 0);
 235         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 236
 237         status_label = gtk_label_new("");
 238         gtk_box_pack_start(GTK_BOX(hbox), status_label, FALSE, FALSE, 0);
 239
 240         gtkut_button_set_create(&confirm_area,
 241                                 &ok_button,      _("OK"),
 242                                 &cancel_button,  _("Cancel"),
 243                                 &refresh_button, _("Refresh"));
 244         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area),
 245                           confirm_area);
 246         gtk_widget_grab_default(ok_button);
 247
 248         gtk_signal_connect(GTK_OBJECT(ok_button), "clicked",
 249                            GTK_SIGNAL_FUNC(ok_clicked), NULL);
 250         gtk_signal_connect(GTK_OBJECT(cancel_button), "clicked",
 251                            GTK_SIGNAL_FUNC(cancel_clicked), NULL);
 252         gtk_signal_connect(GTK_OBJECT(refresh_button), "clicked",
 253                            GTK_SIGNAL_FUNC(refresh_clicked), NULL);
 254
 255         gtk_widget_show_all(GTK_DIALOG(dialog)->vbox);
 256 }
 257
 258 static GHashTable *branch_node_table;
 259
 260 static void grouplist_hash_init(void)
 261 {
 262         branch_node_table = g_hash_table_new(g_str_hash, g_str_equal);
 263 }
 264
 265 static void grouplist_hash_done(void)
 266 {
 267         hash_free_strings(branch_node_table);
 268         g_hash_table_destroy(branch_node_table);
 269 }
 270
 271 static GtkCTreeNode *grouplist_hash_get_branch_node(const gchar *name)
 272 {
 273         return g_hash_table_lookup(branch_node_table, name);
 274 }
 275
 276 static void grouplist_hash_set_branch_node(const gchar *name,
 277                                            GtkCTreeNode *node)
 278 {
 279         g_hash_table_insert(branch_node_table, g_strdup(name), node);
 280 }
 281
 282 static gchar *grouplist_get_parent_name(const gchar *name)
 283 {
 284         gchar *p;
 285
 286         p = strrchr(name, '.');
 287         if (!p)
 288                 return g_strdup("");
 289         return g_strndup(name, p - name);
 290 }
 291
 292 static GtkCTreeNode *grouplist_create_parent(const gchar *name,
 293                                              const gchar *pattern)
 294 {
 295         GtkCTreeNode *parent;
 296         GtkCTreeNode *node;
 297         gchar *cols[3];
 298         gchar *parent_name;
 299
 300         if (*name == '\0') return NULL;
 301         node = grouplist_hash_get_branch_node(name);
 302         if (node != NULL) return node;
 303
 304         cols[0] = (gchar *)name;
 305         cols[1] = cols[2] = "";
 306
 307         parent_name = grouplist_get_parent_name(name);
 308         parent = grouplist_create_parent(parent_name, pattern);
 309
 310         node = parent ? GTK_CTREE_ROW(parent)->children
 311                 : GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 312         node = gtk_ctree_insert_node(GTK_CTREE(ctree), parent, node,
 313                                      cols, 0, NULL, NULL, NULL, NULL,
 314                                      FALSE, FALSE);
 315         if (parent && fnmatch(pattern, parent_name, 0) != 0)
 316                 gtk_ctree_expand(GTK_CTREE(ctree), parent);
 317         gtk_ctree_node_set_selectable(GTK_CTREE(ctree), node, FALSE);
 318
 319         grouplist_hash_set_branch_node(name, node);
 320
 321         g_free(parent_name);
 322
 323         return node;
 324 }
 325
 326 static GtkCTreeNode *grouplist_create_branch(NewsGroupInfo *ginfo,
 327                                              const gchar *pattern)
 328 {
 329         GtkCTreeNode *node;
 330         GtkCTreeNode *parent;
 331         gchar *name = (gchar *)ginfo->name;
 332         gchar *parent_name;
 333         gchar *count_str;
 334         gchar *cols[3];
 335         gint count;
 336
 337         count = ginfo->last - ginfo->first;
 338         if (count < 0)
 339                 count = 0;
 340         count_str = itos(count);
 341
 342         cols[0] = ginfo->name;
 343         cols[1] = count_str;
 344         if (ginfo->type == 'y')
 345                 cols[2] = "";
 346         else if (ginfo->type == 'm')
 347                 cols[2] = _("moderated");
 348         else if (ginfo->type == 'n')
 349                 cols[2] = _("readonly");
 350         else
 351                 cols[2] = _("unknown");
 352
 353         parent_name = grouplist_get_parent_name(name);
 354         parent = grouplist_create_parent(parent_name, pattern);
 355         node = grouplist_hash_get_branch_node(name);
 356         if (node) {
 357                 gtk_ctree_set_node_info(GTK_CTREE(ctree), node, cols[0], 0,
 358                                         NULL, NULL, NULL, NULL, FALSE, FALSE);
 359                 gtk_ctree_node_set_text(GTK_CTREE(ctree), node, 1, cols[1]);
 360                 gtk_ctree_node_set_text(GTK_CTREE(ctree), node, 2, cols[2]);
 361         } else {
 362                 node = parent ? GTK_CTREE_ROW(parent)->children
 363                         : GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 364                 node = gtk_ctree_insert_node(GTK_CTREE(ctree), parent, node,
 365                                              cols, 0, NULL, NULL, NULL, NULL,
 366                                              TRUE, FALSE);
 367                 if (parent && fnmatch(pattern, parent_name, 0) != 0)
 368                         gtk_ctree_expand(GTK_CTREE(ctree), parent);
 369         }
 370         gtk_ctree_node_set_selectable(GTK_CTREE(ctree), node, TRUE);
 371         if (node)
 372                 gtk_ctree_node_set_row_data(GTK_CTREE(ctree), node, ginfo);
 373
 374         g_free(parent_name);
 375
 376         return node;
 377 }
 378
 379 static void grouplist_dialog_set_list(const gchar *pattern, gboolean refresh)
 380 {
 381         GSList *cur;
 382         GtkCTreeNode *node;
 383
 384         if (locked) return;
 385         locked = TRUE;
 386
 387         if (!pattern || *pattern == '\0')
 388                 pattern = "*";
 389
 390         if (refresh) {
 391                 ack = TRUE;
 392                 grouplist_clear();
 393                 recv_set_ui_func(grouplist_recv_func, NULL);
 394                 group_list = news_get_group_list(news_folder);
 395                 group_list = g_slist_reverse(group_list);
 396                 recv_set_ui_func(NULL, NULL);
 397                 if (group_list == NULL && ack == TRUE) {
 398                         alertpanel_error(_("Can't retrieve newsgroup list."));
 399                         locked = FALSE;
 400                         return;
 401                 }
 402         } else {
 403                 gtk_signal_handler_block_by_func
 404                         (GTK_OBJECT(ctree), GTK_SIGNAL_FUNC(ctree_unselected),
 405                          NULL);
 406                 gtk_clist_clear(GTK_CLIST(ctree));
 407                 gtk_signal_handler_unblock_by_func
 408                         (GTK_OBJECT(ctree), GTK_SIGNAL_FUNC(ctree_unselected),
 409                          NULL);
 410         }
 411         gtk_entry_set_text(GTK_ENTRY(entry), pattern);
 412
 413         grouplist_hash_init();
 414
 415         gtk_clist_freeze(GTK_CLIST(ctree));
 416
 417         gtk_signal_handler_block_by_func(GTK_OBJECT(ctree),
 418                                          GTK_SIGNAL_FUNC(ctree_selected),
 419                                          NULL);
 420
 421         for (cur = group_list; cur != NULL ; cur = cur->next) {
 422                 NewsGroupInfo *ginfo = (NewsGroupInfo *)cur->data;
 423
 424                 if (fnmatch(pattern, ginfo->name, 0) == 0) {
 425                         node = grouplist_create_branch(ginfo, pattern);
 426                         if (g_slist_find_custom(subscribed, ginfo->name,
 427                                                 (GCompareFunc)g_strcasecmp)
 428                             != NULL)
 429                                 gtk_ctree_select(GTK_CTREE(ctree), node);
 430                 }
 431         }
 432
 433         gtk_signal_handler_unblock_by_func(GTK_OBJECT(ctree),
 434                                            GTK_SIGNAL_FUNC(ctree_selected),
 435                                            NULL);
 436
 437         gtk_clist_thaw(GTK_CLIST(ctree));
 438
 439         grouplist_hash_done();
 440
 441         gtk_label_set_text(GTK_LABEL(status_label), _("Done."));
 442
 443         locked = FALSE;
 444 }
 445
 446 static void grouplist_search(void)
 447 {
 448         gchar *str;
 449
 450         if (locked) return;
 451
 452         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 453         grouplist_dialog_set_list(str, FALSE);
 454         g_free(str);
 455 }
 456
 457 static void grouplist_clear(void)
 458 {
 459         gtk_signal_handler_block_by_func(GTK_OBJECT(ctree),
 460                                          GTK_SIGNAL_FUNC(ctree_unselected),
 461                                          NULL);
 462         gtk_clist_clear(GTK_CLIST(ctree));
 463         gtk_entry_set_text(GTK_ENTRY(entry), "");
 464         news_group_list_free(group_list);
 465         group_list = NULL;
 466         gtk_signal_handler_unblock_by_func(GTK_OBJECT(ctree),
 467                                            GTK_SIGNAL_FUNC(ctree_unselected),
 468                                            NULL);
 469 }
 470
 471 static gboolean grouplist_recv_func(SockInfo *sock, gint count, gint read_bytes,
 472                                     gpointer data)
 473 {
 474         gchar buf[BUFFSIZE];
 475
 476         g_snprintf(buf, sizeof(buf),
 477                    _("%d newsgroups received (%s read)"),
 478                    count, to_human_readable(read_bytes));
 479         gtk_label_set_text(GTK_LABEL(status_label), buf);
 480         GTK_EVENTS_FLUSH();
 481         if (ack == FALSE)
 482                 return FALSE;
 483         else
 484                 return TRUE;
 485 }
 486
 487 static void ok_clicked(GtkWidget *widget, gpointer data)
 488 {
 489         ack = TRUE;
 490         if (gtk_main_level() > 1)
 491                 gtk_main_quit();
 492 }
 493
 494 static void cancel_clicked(GtkWidget *widget, gpointer data)
 495 {
 496         ack = FALSE;
 497         if (gtk_main_level() > 1)
 498                 gtk_main_quit();
 499 }
 500
 501 static void refresh_clicked(GtkWidget *widget, gpointer data)
 502 {
 503         gchar *str;
 504
 505         if (locked) return;
 506
 507         news_remove_group_list_cache(news_folder);
 508
 509         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 510         grouplist_dialog_set_list(str, TRUE);
 511         g_free(str);
 512 }
 513
 514 static void key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 515 {
 516         if (event && event->keyval == GDK_Escape)
 517                 cancel_clicked(NULL, NULL);
 518 }
 519
 520 static void ctree_selected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
 521                            gpointer data)
 522 {
 523         NewsGroupInfo *ginfo;
 524
 525         ginfo = gtk_ctree_node_get_row_data(ctree, node);
 526         if (!ginfo) return;
 527
 528         subscribed = g_slist_append(subscribed, g_strdup(ginfo->name));
 529 }
 530
 531 static void ctree_unselected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
 532                              gpointer data)
 533 {
 534         NewsGroupInfo *ginfo;
 535         GSList *list;
 536
 537         ginfo = gtk_ctree_node_get_row_data(ctree, node);
 538         if (!ginfo) return;
 539
 540         list = g_slist_find_custom(subscribed, ginfo->name,
 541                                    (GCompareFunc)g_strcasecmp);
 542         if (list) {
 543                 g_free(list->data);
 544                 subscribed = g_slist_remove(subscribed, list->data);
 545         }
 546 }
 547
 548 static void entry_activated(GtkEditable *editable)
 549 {
 550         grouplist_search();
 551 }
 552
 553 static void search_clicked(GtkWidget *widget, gpointer data)
 554 {
 555         grouplist_search();
 556 }