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/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          480
  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   (gchar          *pattern);
  74 static void grouplist_clear             (void);
  75 static void grouplist_recv_func         (SockInfo       *sock,
  76                                          gint            count,
  77                                          gint            read_bytes,
  78                                          gpointer        data);
  79
  80 static void ok_clicked          (GtkWidget      *widget,
  81                                  gpointer        data);
  82 static void cancel_clicked      (GtkWidget      *widget,
  83                                  gpointer        data);
  84 static void refresh_clicked     (GtkWidget      *widget,
  85                                  gpointer        data);
  86 static void key_pressed         (GtkWidget      *widget,
  87                                  GdkEventKey    *event,
  88                                  gpointer        data);
  89 static void ctree_selected      (GtkCTree       *ctree,
  90                                  GtkCTreeNode   *node,
  91                                  gint            column,
  92                                  gpointer        data);
  93 static void ctree_unselected    (GtkCTree       *ctree,
  94                                  GtkCTreeNode   *node,
  95                                  gint            column,
  96                                  gpointer        data);
  97 static void entry_activated     (GtkEditable    *editable);
  98
  99 GSList *grouplist_dialog(Folder *folder)
 100 {
 101         GNode *node;
 102         FolderItem *item;
 103
 104         if (dialog && GTK_WIDGET_VISIBLE(dialog)) return NULL;
 105
 106         if (!dialog)
 107                 grouplist_dialog_create();
 108
 109         news_folder = folder;
 110
 111         gtk_widget_show(dialog);
 112         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
 113         manage_window_set_transient(GTK_WINDOW(dialog));
 114         gtk_widget_grab_focus(ok_button);
 115         gtk_widget_grab_focus(ctree);
 116         GTK_EVENTS_FLUSH();
 117
 118         subscribed = NULL;
 119         for (node = folder->node->children; node != NULL; node = node->next) {
 120                 item = FOLDER_ITEM(node->data);
 121                 subscribed = g_slist_append(subscribed, g_strdup(item->name));
 122         }
 123
 124         grouplist_dialog_set_list(NULL);
 125
 126         gtk_main();
 127
 128         manage_window_focus_out(dialog, NULL, NULL);
 129         gtk_widget_hide(dialog);
 130
 131         if (!ack) {
 132                 slist_free_strings(subscribed);
 133                 g_slist_free(subscribed);
 134                 subscribed = NULL;
 135
 136                 for (node = folder->node->children; node != NULL;
 137                      node = node->next) {
 138                         item = FOLDER_ITEM(node->data);
 139                         subscribed = g_slist_append(subscribed,
 140                                                     g_strdup(item->name));
 141                 }
 142         }
 143
 144         grouplist_clear();
 145
 146         return subscribed;
 147 }
 148
 149 static void grouplist_dialog_create(void)
 150 {
 151         GtkWidget *vbox;
 152         GtkWidget *hbox;
 153         GtkWidget *msg_label;
 154         GtkWidget *confirm_area;
 155         GtkWidget *cancel_button;
 156         GtkWidget *refresh_button;
 157         GtkWidget *scrolledwin;
 158         gchar *titles[3];
 159         gint i;
 160
 161         dialog = gtk_dialog_new();
 162         gtk_window_set_policy(GTK_WINDOW(dialog), FALSE, TRUE, FALSE);
 163         gtk_widget_set_usize(dialog,
 164                              GROUPLIST_DIALOG_WIDTH, GROUPLIST_DIALOG_HEIGHT);
 165         gtk_container_set_border_width
 166                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
 167         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
 168         gtk_window_set_title(GTK_WINDOW(dialog), _("Subscribe to newsgroup"));
 169         gtk_signal_connect(GTK_OBJECT(dialog), "delete_event",
 170                            GTK_SIGNAL_FUNC(cancel_clicked), NULL);
 171         gtk_signal_connect(GTK_OBJECT(dialog), "key_press_event",
 172                            GTK_SIGNAL_FUNC(key_pressed), NULL);
 173         gtk_signal_connect(GTK_OBJECT(dialog), "focus_in_event",
 174                            GTK_SIGNAL_FUNC(manage_window_focus_in), NULL);
 175         gtk_signal_connect(GTK_OBJECT(dialog), "focus_out_event",
 176                            GTK_SIGNAL_FUNC(manage_window_focus_out), NULL);
 177
 178         gtk_widget_realize(dialog);
 179
 180         vbox = gtk_vbox_new(FALSE, 8);
 181         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
 182         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
 183
 184         hbox = gtk_hbox_new(FALSE, 0);
 185         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 186
 187         msg_label = gtk_label_new(_("Input subscribing newsgroup:"));
 188         gtk_box_pack_start(GTK_BOX(hbox), msg_label, FALSE, FALSE, 0);
 189
 190         entry = gtk_entry_new();
 191         gtk_box_pack_start(GTK_BOX(vbox), entry, FALSE, FALSE, 0);
 192         gtk_signal_connect(GTK_OBJECT(entry), "activate",
 193                            GTK_SIGNAL_FUNC(entry_activated), NULL);
 194
 195         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 196         gtk_box_pack_start(GTK_BOX (vbox), scrolledwin, TRUE, TRUE, 0);
 197         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW (scrolledwin),
 198                                        GTK_POLICY_AUTOMATIC,
 199                                        GTK_POLICY_AUTOMATIC);
 200
 201         titles[0] = _("Newsgroup name");
 202         titles[1] = _("Messages");
 203         titles[2] = _("Type");
 204         ctree = gtk_ctree_new_with_titles(3, 0, titles);
 205         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 206         gtk_clist_set_column_width
 207                 (GTK_CLIST(ctree), 0, GROUPLIST_COL_NAME_WIDTH);
 208         gtk_clist_set_selection_mode(GTK_CLIST(ctree), GTK_SELECTION_MULTIPLE);
 209         gtk_ctree_set_line_style(GTK_CTREE(ctree), GTK_CTREE_LINES_DOTTED);
 210         gtk_ctree_set_expander_style(GTK_CTREE(ctree),
 211                                      GTK_CTREE_EXPANDER_SQUARE);
 212         for (i = 0; i < 3; i++)
 213                 GTK_WIDGET_UNSET_FLAGS(GTK_CLIST(ctree)->column[i].button,
 214                                        GTK_CAN_FOCUS);
 215         gtk_signal_connect(GTK_OBJECT(ctree), "tree_select_row",
 216                            GTK_SIGNAL_FUNC(ctree_selected), NULL);
 217         gtk_signal_connect(GTK_OBJECT(ctree), "tree_unselect_row",
 218                            GTK_SIGNAL_FUNC(ctree_unselected), NULL);
 219
 220         hbox = gtk_hbox_new(FALSE, 0);
 221         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 222
 223         status_label = gtk_label_new("");
 224         gtk_box_pack_start(GTK_BOX(hbox), status_label, FALSE, FALSE, 0);
 225
 226         gtkut_button_set_create(&confirm_area,
 227                                 &ok_button,      _("OK"),
 228                                 &cancel_button,  _("Cancel"),
 229                                 &refresh_button, _("Refresh"));
 230         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area),
 231                           confirm_area);
 232         gtk_widget_grab_default(ok_button);
 233
 234         gtk_signal_connect(GTK_OBJECT(ok_button), "clicked",
 235                            GTK_SIGNAL_FUNC(ok_clicked), NULL);
 236         gtk_signal_connect(GTK_OBJECT(cancel_button), "clicked",
 237                            GTK_SIGNAL_FUNC(cancel_clicked), NULL);
 238         gtk_signal_connect(GTK_OBJECT(refresh_button), "clicked",
 239                            GTK_SIGNAL_FUNC(refresh_clicked), NULL);
 240
 241         gtk_widget_show_all(GTK_DIALOG(dialog)->vbox);
 242 }
 243
 244 static GHashTable *last_node_table;
 245 static GHashTable *branch_node_table;
 246
 247 static void grouplist_hash_init(void)
 248 {
 249         last_node_table = g_hash_table_new(g_str_hash, g_str_equal);
 250         branch_node_table = g_hash_table_new(g_str_hash, g_str_equal);
 251 }
 252
 253 static void grouplist_hash_done(void)
 254 {
 255         hash_free_strings(branch_node_table);
 256         hash_free_strings(last_node_table);
 257
 258         g_hash_table_destroy(branch_node_table);
 259         g_hash_table_destroy(last_node_table);
 260 }
 261
 262 static GtkCTreeNode *grouplist_hash_get_branch_node(const gchar *name)
 263 {
 264         return g_hash_table_lookup(branch_node_table, name);
 265 }
 266
 267 static void grouplist_hash_set_branch_node(const gchar *name,
 268                                            GtkCTreeNode *node)
 269 {
 270         g_hash_table_insert(branch_node_table, g_strdup(name), node);
 271 }
 272
 273 static GtkCTreeNode *grouplist_hash_get_last_node(const gchar *name)
 274 {
 275         return g_hash_table_lookup(last_node_table, name);
 276 }
 277
 278 static void grouplist_hash_set_last_node(const gchar *name,
 279                                          GtkCTreeNode *node)
 280 {
 281         gchar *key;
 282         gpointer value;
 283
 284         if (g_hash_table_lookup_extended(last_node_table, name,
 285                                          (gpointer *)&key, &value)) {
 286                 g_hash_table_remove(last_node_table, name);
 287                 g_free(key);
 288         }
 289
 290         g_hash_table_insert(last_node_table, g_strdup(name), node);
 291 }
 292
 293 static gchar *grouplist_get_parent_name(const gchar *name)
 294 {
 295         gchar *p;
 296
 297         p = strrchr(name, '.');
 298         if (!p)
 299                 return g_strdup("");
 300         return g_strndup(name, p - name);
 301 }
 302
 303 static GtkCTreeNode *grouplist_create_parent(const gchar *name)
 304 {
 305         GtkCTreeNode *parent;
 306         GtkCTreeNode *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);
 319
 320         node = grouplist_hash_get_last_node(parent_name);
 321         node = gtk_ctree_insert_node(GTK_CTREE(ctree), parent, node,
 322                                      cols, 0, NULL, NULL, NULL, NULL,
 323                                      FALSE, FALSE);
 324         gtk_ctree_node_set_selectable(GTK_CTREE(ctree), node, FALSE);
 325         grouplist_hash_set_last_node(parent_name, node);
 326         grouplist_hash_set_branch_node(name, node);
 327
 328         g_free(parent_name);
 329
 330         return node;
 331 }
 332
 333 static GtkCTreeNode *grouplist_create_branch(NewsGroupInfo *ginfo)
 334 {
 335         GtkCTreeNode *node;
 336         GtkCTreeNode *parent;
 337         gchar *name = (gchar *)ginfo->name;
 338         gchar *parent_name;
 339         gchar *count_str;
 340         gchar *cols[3];
 341         gint count;
 342
 343         count = ginfo->last - ginfo->first;
 344         if (count < 0)
 345                 count = 0;
 346         count_str = itos(count);
 347
 348         cols[0] = ginfo->name;
 349         cols[1] = count_str;
 350         if (ginfo->type == 'y')
 351                 cols[2] = "";
 352         else if (ginfo->type == 'm')
 353                 cols[2] = _("moderated");
 354         else if (ginfo->type == 'n')
 355                 cols[2] = _("readonly");
 356         else
 357                 cols[2] = _("unknown");
 358
 359         parent_name = grouplist_get_parent_name(name);
 360         parent = grouplist_create_parent(parent_name);
 361         node = grouplist_hash_get_branch_node(name);
 362         if (node) {
 363                 gtk_ctree_set_node_info(GTK_CTREE(ctree), node, cols[0], 0,
 364                                         NULL, NULL, NULL, NULL, FALSE, FALSE);
 365                 gtk_ctree_node_set_text(GTK_CTREE(ctree), node, 1, cols[1]);
 366                 gtk_ctree_node_set_text(GTK_CTREE(ctree), node, 2, cols[2]);
 367         } else {
 368                 node = grouplist_hash_get_last_node(parent_name);
 369                 node = gtk_ctree_insert_node(GTK_CTREE(ctree), parent, node,
 370                                              cols, 0, NULL, NULL, NULL, NULL,
 371                                              TRUE, FALSE);
 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         grouplist_hash_set_last_node(parent_name, node);
 378
 379         g_free(parent_name);
 380
 381         return node;
 382 }
 383
 384 static void grouplist_dialog_set_list(gchar *pattern)
 385 {
 386         GSList *cur;
 387         GtkCTreeNode *node;
 388
 389         if (locked) return;
 390         locked = TRUE;
 391
 392         if (!pattern || *pattern == '\0')
 393                 pattern = "*";
 394
 395         grouplist_clear();
 396
 397         recv_set_ui_func(grouplist_recv_func, NULL);
 398         group_list = news_get_group_list(news_folder);
 399         group_list = g_slist_reverse(group_list);
 400         recv_set_ui_func(NULL, NULL);
 401         if (group_list == NULL) {
 402                 alertpanel_error(_("Can't retrieve newsgroup list."));
 403                 locked = FALSE;
 404                 return;
 405         }
 406
 407         grouplist_hash_init();
 408
 409         gtk_clist_freeze(GTK_CLIST(ctree));
 410
 411         gtk_signal_handler_block_by_func(GTK_OBJECT(ctree),
 412                                          GTK_SIGNAL_FUNC(ctree_selected),
 413                                          NULL);
 414
 415         for (cur = group_list; cur != NULL ; cur = cur->next) {
 416                 NewsGroupInfo *ginfo = (NewsGroupInfo *)cur->data;
 417
 418                 if (fnmatch(pattern, ginfo->name, 0) == 0) {
 419                         node = grouplist_create_branch(ginfo);
 420                         if (g_slist_find_custom(subscribed, ginfo->name,
 421                                                 (GCompareFunc)g_strcasecmp)
 422                             != NULL)
 423                                 gtk_ctree_select(GTK_CTREE(ctree), node);
 424                 }
 425         }
 426
 427         gtk_signal_handler_unblock_by_func(GTK_OBJECT(ctree),
 428                                            GTK_SIGNAL_FUNC(ctree_selected),
 429                                            NULL);
 430
 431         gtk_clist_thaw(GTK_CLIST(ctree));
 432
 433         grouplist_hash_done();
 434
 435         gtk_label_set_text(GTK_LABEL(status_label), _("Done."));
 436
 437         locked = FALSE;
 438 }
 439
 440 static void grouplist_clear(void)
 441 {
 442         gtk_signal_handler_block_by_func(GTK_OBJECT(ctree),
 443                                          GTK_SIGNAL_FUNC(ctree_unselected),
 444                                          NULL);
 445         gtk_clist_clear(GTK_CLIST(ctree));
 446         gtk_entry_set_text(GTK_ENTRY(entry), "");
 447         news_group_list_free(group_list);
 448         group_list = NULL;
 449         gtk_signal_handler_unblock_by_func(GTK_OBJECT(ctree),
 450                                            GTK_SIGNAL_FUNC(ctree_unselected),
 451                                            NULL);
 452 }
 453
 454 static void grouplist_recv_func(SockInfo *sock, gint count, gint read_bytes,
 455                                 gpointer data)
 456 {
 457         gchar buf[BUFFSIZE];
 458
 459         g_snprintf(buf, sizeof(buf),
 460                    _("%d newsgroups received (%s read)"),
 461                    count, to_human_readable(read_bytes));
 462         gtk_label_set_text(GTK_LABEL(status_label), buf);
 463         GTK_EVENTS_FLUSH();
 464 }
 465
 466 static void ok_clicked(GtkWidget *widget, gpointer data)
 467 {
 468         gchar *str;
 469
 470         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 471
 472         if (strchr(str, '*') != NULL)
 473                 grouplist_dialog_set_list(str);
 474         else {
 475                 ack = TRUE;
 476                 if (gtk_main_level() > 1)
 477                         gtk_main_quit();
 478         }
 479
 480         g_free(str);
 481 }
 482
 483 static void cancel_clicked(GtkWidget *widget, gpointer data)
 484 {
 485         ack = FALSE;
 486         if (gtk_main_level() > 1)
 487                 gtk_main_quit();
 488 }
 489
 490 static void refresh_clicked(GtkWidget *widget, gpointer data)
 491 {
 492         gchar *str;
 493
 494         if (locked) return;
 495
 496         news_remove_group_list_cache(news_folder);
 497
 498         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 499         grouplist_dialog_set_list(str);
 500         g_free(str);
 501 }
 502
 503 static void key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 504 {
 505         if (event && event->keyval == GDK_Escape)
 506                 cancel_clicked(NULL, NULL);
 507 }
 508
 509 static void ctree_selected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
 510                            gpointer data)
 511 {
 512         NewsGroupInfo *ginfo;
 513
 514         ginfo = gtk_ctree_node_get_row_data(ctree, node);
 515         if (!ginfo) return;
 516
 517         subscribed = g_slist_append(subscribed, g_strdup(ginfo->name));
 518 }
 519
 520 static void ctree_unselected(GtkCTree *ctree, GtkCTreeNode *node, gint column,
 521                              gpointer data)
 522 {
 523         NewsGroupInfo *ginfo;
 524         GSList *list;
 525
 526         ginfo = gtk_ctree_node_get_row_data(ctree, node);
 527         if (!ginfo) return;
 528
 529         list = g_slist_find_custom(subscribed, ginfo->name,
 530                                    (GCompareFunc)g_strcasecmp);
 531         if (list) {
 532                 g_free(list->data);
 533                 subscribed = g_slist_remove(subscribed, list->data);
 534         }
 535 }
 536
 537 static void entry_activated(GtkEditable *editable)
 538 {
 539         gchar * str;
 540         gboolean update_list;
 541
 542         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 543
 544         update_list = FALSE;
 545
 546         if (strchr(str, '*') != NULL)
 547           update_list = TRUE;
 548
 549         if (update_list) {
 550                 grouplist_dialog_set_list(str);
 551                 g_free(str);
 552         }
 553         else {
 554                 g_free(str);
 555                 ok_clicked(NULL, NULL);
 556         }
 557 }