src/grouplistdialog.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2005 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 <glib/gi18n.h>
  28 #include <gdk/gdkkeysyms.h>
  29 #include <gtk/gtkmain.h>
  30 #include <gtk/gtkwidget.h>
  31 #include <gtk/gtkdialog.h>
  32 #include <gtk/gtkwindow.h>
  33 #include <gtk/gtksignal.h>
  34 #include <gtk/gtkvbox.h>
  35 #include <gtk/gtkhbox.h>
  36 #include <gtk/gtklabel.h>
  37 #include <gtk/gtkentry.h>
  38 #include <gtk/gtkctree.h>
  39 #include <gtk/gtkscrolledwindow.h>
  40 #include <gtk/gtkbutton.h>
  41 #include <gtk/gtkhbbox.h>
  42 #include <gtk/gtkstock.h>
  43 #include <string.h>
  44
  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 gint window_deleted      (GtkWidget      *widget,
  83                                  GdkEventAny    *event,
  84                                  gpointer        data);
  85 static void ok_clicked          (GtkWidget      *widget,
  86                                  gpointer        data);
  87 static void cancel_clicked      (GtkWidget      *widget,
  88                                  gpointer        data);
  89 static void refresh_clicked     (GtkWidget      *widget,
  90                                  gpointer        data);
  91 static gboolean key_pressed     (GtkWidget      *widget,
  92                                  GdkEventKey    *event,
  93                                  gpointer        data);
  94 static gboolean button_press_cb (GtkCTree       *ctree,
  95                                  GdkEventButton *button,
  96                                  gpointer        data);
  97 static void entry_activated     (GtkEditable    *editable);
  98 static void search_clicked      (GtkWidget      *widget,
  99                                  gpointer        data);
 100
 101 GSList *grouplist_dialog(Folder *folder)
 102 {
 103         GNode *node;
 104         FolderItem *item;
 105
 106         if (dialog && GTK_WIDGET_VISIBLE(dialog)) return NULL;
 107
 108         if (!dialog)
 109                 grouplist_dialog_create();
 110
 111         news_folder = folder;
 112
 113         gtk_widget_show(dialog);
 114         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
 115         manage_window_set_transient(GTK_WINDOW(dialog));
 116         gtk_widget_grab_focus(ok_button);
 117         gtk_widget_grab_focus(ctree);
 118         GTK_EVENTS_FLUSH();
 119
 120         subscribed = NULL;
 121         for (node = folder->node->children; node != NULL; node = node->next) {
 122                 item = FOLDER_ITEM(node->data);
 123                 subscribed = g_slist_append(subscribed, g_strdup(item->path));
 124         }
 125
 126         grouplist_dialog_set_list(NULL, TRUE);
 127
 128         if (ack) gtk_main();
 129
 130         manage_window_focus_out(dialog, NULL, NULL);
 131         gtk_widget_hide(dialog);
 132
 133         if (!ack) {
 134                 slist_free_strings(subscribed);
 135                 g_slist_free(subscribed);
 136                 subscribed = NULL;
 137
 138                 for (node = folder->node->children; node != NULL;
 139                      node = node->next) {
 140                         item = FOLDER_ITEM(node->data);
 141                         subscribed = g_slist_append(subscribed,
 142                                                     g_strdup(item->path));
 143                 }
 144         }
 145
 146         grouplist_clear();
 147
 148         return subscribed;
 149 }
 150
 151 static void grouplist_dialog_create(void)
 152 {
 153         GtkWidget *vbox;
 154         GtkWidget *hbox;
 155         GtkWidget *msg_label;
 156         GtkWidget *search_button;
 157         GtkWidget *confirm_area;
 158         GtkWidget *cancel_button;
 159         GtkWidget *refresh_button;
 160         GtkWidget *scrolledwin;
 161         gchar *titles[3];
 162         gint i;
 163
 164         dialog = gtk_dialog_new();
 165         gtk_window_set_resizable(GTK_WINDOW(dialog), TRUE);
 166         gtk_widget_set_size_request(dialog,
 167                                     GROUPLIST_DIALOG_WIDTH,
 168                                     GROUPLIST_DIALOG_HEIGHT);
 169         gtk_container_set_border_width
 170                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
 171         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
 172         gtk_window_set_title(GTK_WINDOW(dialog), _("Newsgroup subscription"));
 173         g_signal_connect(G_OBJECT(dialog), "delete_event",
 174                          G_CALLBACK(window_deleted), NULL);
 175         g_signal_connect(G_OBJECT(dialog), "key_press_event",
 176                          G_CALLBACK(key_pressed), NULL);
 177         MANAGE_WINDOW_SIGNALS_CONNECT(dialog);
 178
 179         gtk_widget_realize(dialog);
 180
 181         vbox = gtk_vbox_new(FALSE, 8);
 182         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
 183         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
 184
 185         hbox = gtk_hbox_new(FALSE, 0);
 186         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 187
 188         msg_label = gtk_label_new(_("Select newsgroups for subscription:"));
 189         gtk_box_pack_start(GTK_BOX(hbox), msg_label, FALSE, FALSE, 0);
 190
 191         hbox = gtk_hbox_new(FALSE, 8);
 192         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 193
 194         msg_label = gtk_label_new(_("Find groups:"));
 195         gtk_box_pack_start(GTK_BOX(hbox), msg_label, FALSE, FALSE, 0);
 196
 197         entry = gtk_entry_new();
 198         gtk_box_pack_start(GTK_BOX(hbox), entry, TRUE, TRUE, 0);
 199         g_signal_connect(G_OBJECT(entry), "activate",
 200                          G_CALLBACK(entry_activated), NULL);
 201
 202         search_button = gtk_button_new_with_label(_(" Search "));
 203         gtk_box_pack_start(GTK_BOX(hbox), search_button, FALSE, FALSE, 0);
 204
 205         g_signal_connect(G_OBJECT(search_button), "clicked",
 206                          G_CALLBACK(search_clicked), NULL);
 207
 208         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 209         gtk_box_pack_start(GTK_BOX (vbox), scrolledwin, TRUE, TRUE, 0);
 210         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW (scrolledwin),
 211                                        GTK_POLICY_ALWAYS,
 212                                        GTK_POLICY_ALWAYS);
 213
 214         titles[0] = _("Newsgroup name");
 215         titles[1] = _("Messages");
 216         titles[2] = _("Type");
 217         ctree = gtk_ctree_new_with_titles(3, 0, titles);
 218         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
 219         gtk_clist_set_column_width
 220                 (GTK_CLIST(ctree), 0, GROUPLIST_COL_NAME_WIDTH);
 221         gtk_clist_set_column_auto_resize(GTK_CLIST(ctree), 0, TRUE);
 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         g_signal_connect(G_OBJECT(ctree), "button-press-event",
 230                          G_CALLBACK(button_press_cb), NULL);
 231
 232         hbox = gtk_hbox_new(FALSE, 0);
 233         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
 234
 235         status_label = gtk_label_new("");
 236         gtk_box_pack_start(GTK_BOX(hbox), status_label, FALSE, FALSE, 0);
 237
 238         gtkut_stock_button_set_create(&confirm_area,
 239                                       &ok_button, GTK_STOCK_OK,
 240                                       &cancel_button, GTK_STOCK_CANCEL,
 241                                       &refresh_button, GTK_STOCK_REFRESH);
 242         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area),
 243                           confirm_area);
 244         gtk_widget_grab_default(ok_button);
 245
 246         g_signal_connect(G_OBJECT(ok_button), "clicked",
 247                          G_CALLBACK(ok_clicked), NULL);
 248         g_signal_connect(G_OBJECT(cancel_button), "clicked",
 249                          G_CALLBACK(cancel_clicked), NULL);
 250         g_signal_connect(G_OBJECT(refresh_button), "clicked",
 251                          G_CALLBACK(refresh_clicked), NULL);
 252
 253         gtk_widget_show_all(GTK_DIALOG(dialog)->vbox);
 254 }
 255
 256 static GHashTable *branch_node_table;
 257
 258 static void grouplist_hash_init(void)
 259 {
 260         branch_node_table = g_hash_table_new(g_str_hash, g_str_equal);
 261 }
 262
 263 static void grouplist_hash_done(void)
 264 {
 265         hash_free_strings(branch_node_table);
 266         g_hash_table_destroy(branch_node_table);
 267 }
 268
 269 static GtkCTreeNode *grouplist_hash_get_branch_node(const gchar *name)
 270 {
 271         return g_hash_table_lookup(branch_node_table, name);
 272 }
 273
 274 static void grouplist_hash_set_branch_node(const gchar *name,
 275                                            GtkCTreeNode *node)
 276 {
 277         g_hash_table_insert(branch_node_table, g_strdup(name), node);
 278 }
 279
 280 static gchar *grouplist_get_parent_name(const gchar *name)
 281 {
 282         gchar *p;
 283
 284         p = strrchr(name, '.');
 285         if (!p)
 286                 return g_strdup("");
 287         return g_strndup(name, p - name);
 288 }
 289
 290 static GtkCTreeNode *grouplist_create_parent(const gchar *name,
 291                                              const gchar *pattern)
 292 {
 293         GtkCTreeNode *parent;
 294         GtkCTreeNode *node;
 295         gchar *cols[3];
 296         gchar *parent_name;
 297
 298         if (*name == '\0') return NULL;
 299         node = grouplist_hash_get_branch_node(name);
 300         if (node != NULL) return node;
 301
 302         cols[0] = (gchar *)name;
 303         cols[1] = cols[2] = "";
 304
 305         parent_name = grouplist_get_parent_name(name);
 306         parent = grouplist_create_parent(parent_name, pattern);
 307
 308         node = parent ? GTK_CTREE_ROW(parent)->children
 309                 : GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 310         node = gtk_ctree_insert_node(GTK_CTREE(ctree), parent, node,
 311                                      cols, 0, NULL, NULL, NULL, NULL,
 312                                      FALSE, FALSE);
 313         if (parent && g_pattern_match_simple(pattern, parent_name) == FALSE)
 314                 gtk_ctree_expand(GTK_CTREE(ctree), parent);
 315         gtk_ctree_node_set_selectable(GTK_CTREE(ctree), node, FALSE);
 316
 317         grouplist_hash_set_branch_node(name, node);
 318
 319         g_free(parent_name);
 320
 321         return node;
 322 }
 323
 324 static GtkCTreeNode *grouplist_create_branch(NewsGroupInfo *ginfo,
 325                                              const gchar *pattern)
 326 {
 327         GtkCTreeNode *node;
 328         GtkCTreeNode *parent;
 329         gchar *name = (gchar *)ginfo->name;
 330         gchar *parent_name;
 331         gchar *count_str;
 332         gchar *cols[3];
 333         gint count;
 334
 335         count = ginfo->last - ginfo->first;
 336         if (count < 0)
 337                 count = 0;
 338         count_str = itos(count);
 339
 340         cols[0] = ginfo->name;
 341         cols[1] = count_str;
 342         if (ginfo->type == 'y')
 343                 cols[2] = "";
 344         else if (ginfo->type == 'm')
 345                 cols[2] = _("moderated");
 346         else if (ginfo->type == 'n')
 347                 cols[2] = _("readonly");
 348         else
 349                 cols[2] = _("unknown");
 350
 351         parent_name = grouplist_get_parent_name(name);
 352         parent = grouplist_create_parent(parent_name, pattern);
 353         node = grouplist_hash_get_branch_node(name);
 354         if (node) {
 355                 gtk_ctree_set_node_info(GTK_CTREE(ctree), node, cols[0], 0,
 356                                         NULL, NULL, NULL, NULL, FALSE, FALSE);
 357                 gtk_ctree_node_set_text(GTK_CTREE(ctree), node, 1, cols[1]);
 358                 gtk_ctree_node_set_text(GTK_CTREE(ctree), node, 2, cols[2]);
 359         } else {
 360                 node = parent ? GTK_CTREE_ROW(parent)->children
 361                         : GTK_CTREE_NODE(GTK_CLIST(ctree)->row_list);
 362                 node = gtk_ctree_insert_node(GTK_CTREE(ctree), parent, node,
 363                                              cols, 0, NULL, NULL, NULL, NULL,
 364                                              TRUE, FALSE);
 365                 if (parent &&
 366                     g_pattern_match_simple(pattern, parent_name) == FALSE)
 367                         gtk_ctree_expand(GTK_CTREE(ctree), parent);
 368         }
 369         gtk_ctree_node_set_selectable(GTK_CTREE(ctree), node, TRUE);
 370         if (node)
 371                 gtk_ctree_node_set_row_data(GTK_CTREE(ctree), node, ginfo);
 372
 373         g_free(parent_name);
 374
 375         return node;
 376 }
 377
 378 static void grouplist_expand_upwards(GtkCTree *ctree, const gchar *name) {
 379         const gchar *ptr;
 380         gchar *newname=g_malloc0(strlen(name));
 381
 382         for (ptr=name; *ptr; ptr++) {
 383                 if (*ptr == '.')
 384                         gtk_ctree_expand(ctree,
 385                                 grouplist_hash_get_branch_node(newname));
 386                 newname[ptr-name] = *ptr;
 387         }
 388         g_free(newname);
 389 }
 390
 391 static void grouplist_dialog_set_list(const gchar *pattern, gboolean refresh)
 392 {
 393         GSList *cur;
 394         GtkCTreeNode *node;
 395         GPatternSpec *pspec;
 396
 397         if (locked) return;
 398         locked = TRUE;
 399
 400         if (!pattern || *pattern == '\0')
 401                 pattern = "*";
 402
 403         if (refresh) {
 404                 ack = TRUE;
 405                 grouplist_clear();
 406                 recv_set_ui_func(grouplist_recv_func, NULL);
 407                 group_list = news_get_group_list(news_folder);
 408                 group_list = g_slist_reverse(group_list);
 409                 recv_set_ui_func(NULL, NULL);
 410                 if (group_list == NULL && ack == TRUE) {
 411                         alertpanel_error(_("Can't retrieve newsgroup list."));
 412                         locked = FALSE;
 413                         return;
 414                 }
 415         } else
 416                 gtk_clist_clear(GTK_CLIST(ctree));
 417
 418         gtk_entry_set_text(GTK_ENTRY(entry), pattern);
 419
 420         grouplist_hash_init();
 421
 422         gtk_clist_freeze(GTK_CLIST(ctree));
 423
 424         pspec = g_pattern_spec_new(pattern);
 425
 426         for (cur = group_list; cur != NULL ; cur = cur->next) {
 427                 NewsGroupInfo *ginfo = (NewsGroupInfo *)cur->data;
 428
 429                 if (g_pattern_match_string(pspec, ginfo->name)) {
 430                         node = grouplist_create_branch(ginfo, pattern);
 431                         if (g_slist_find_custom(subscribed, ginfo->name,
 432                                                 (GCompareFunc)g_ascii_strcasecmp)
 433                             != NULL)
 434                                 gtk_ctree_select(GTK_CTREE(ctree), node);
 435                 }
 436         }
 437         for (cur = subscribed; cur; cur = g_slist_next(cur))
 438                 grouplist_expand_upwards(GTK_CTREE(ctree), (gchar *)cur->data);
 439
 440         g_pattern_spec_free(pspec);
 441
 442         gtk_clist_thaw(GTK_CLIST(ctree));
 443
 444         grouplist_hash_done();
 445
 446         gtk_label_set_text(GTK_LABEL(status_label), _("Done."));
 447
 448         locked = FALSE;
 449 }
 450
 451 static void grouplist_search(void)
 452 {
 453         gchar *str;
 454
 455         if (locked) return;
 456
 457         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 458         grouplist_dialog_set_list(str, FALSE);
 459         g_free(str);
 460 }
 461
 462 static void grouplist_clear(void)
 463 {
 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 }
 469
 470 static gboolean grouplist_recv_func(SockInfo *sock, gint count, gint read_bytes,
 471                                     gpointer data)
 472 {
 473         gchar buf[BUFFSIZE];
 474
 475         g_snprintf(buf, sizeof(buf),
 476                    _("%d newsgroups received (%s read)"),
 477                    count, to_human_readable(read_bytes));
 478         gtk_label_set_text(GTK_LABEL(status_label), buf);
 479         GTK_EVENTS_FLUSH();
 480         if (ack == FALSE)
 481                 return FALSE;
 482         else
 483                 return TRUE;
 484 }
 485
 486 static gint window_deleted(GtkWidget *widget, GdkEventAny *event, gpointer data)
 487 {
 488         ack = FALSE;
 489         if (gtk_main_level() > 1)
 490                 gtk_main_quit();
 491
 492         return TRUE;
 493 }
 494
 495 static void ok_clicked(GtkWidget *widget, gpointer data)
 496 {
 497         ack = TRUE;
 498         if (gtk_main_level() > 1)
 499                 gtk_main_quit();
 500 }
 501
 502 static void cancel_clicked(GtkWidget *widget, gpointer data)
 503 {
 504         ack = FALSE;
 505         if (gtk_main_level() > 1)
 506                 gtk_main_quit();
 507 }
 508
 509 static void refresh_clicked(GtkWidget *widget, gpointer data)
 510 {
 511         gchar *str;
 512
 513         if (locked) return;
 514
 515         news_remove_group_list_cache(news_folder);
 516
 517         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
 518         grouplist_dialog_set_list(str, TRUE);
 519         g_free(str);
 520 }
 521
 522 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 523 {
 524         if (event && event->keyval == GDK_Escape)
 525                 cancel_clicked(NULL, NULL);
 526         return FALSE;
 527 }
 528
 529 /* clist/ctree clear old selection on click (gtk2 only)
 530  * - intercept all button clicks (always return TRUE)
 531  * - only allow left button single click
 532  * - handle click on expander
 533  * - update "subscribed" list and un-/select row
 534  */
 535 static gboolean button_press_cb(GtkCTree *ctree, GdkEventButton *button,
 536                                 gpointer data)
 537 {
 538         gint row, col;
 539         GtkCTreeNode *node;
 540         NewsGroupInfo *ginfo;
 541         GSList *list;
 542
 543         if (button->type != GDK_BUTTON_PRESS) return TRUE;
 544         if (button->button != 1) return TRUE;
 545
 546         gtk_clist_get_selection_info(GTK_CLIST(ctree),
 547                                      button->x, button->y, &row, &col);
 548         node = gtk_ctree_node_nth(ctree, row);
 549         if (!node) return TRUE;
 550
 551         if (gtk_ctree_is_hot_spot(ctree, button->x, button->y)) {
 552                 gtk_ctree_toggle_expansion(ctree, node);
 553                 return TRUE;
 554         }
 555
 556         ginfo = gtk_ctree_node_get_row_data(ctree, node);
 557         if (!ginfo) return TRUE;
 558
 559         list = g_slist_find_custom(subscribed, ginfo->name,
 560                                    (GCompareFunc)g_ascii_strcasecmp);
 561         if (list) {
 562                 g_free(list->data);
 563                 subscribed = g_slist_remove(subscribed, list->data);
 564                 gtk_clist_unselect_row(GTK_CLIST(ctree), row, 0);
 565         } else {
 566                 subscribed = g_slist_append(subscribed, g_strdup(ginfo->name));
 567                 gtk_clist_select_row(GTK_CLIST(ctree), row, 0);
 568         }
 569
 570         return TRUE;
 571 }
 572
 573 static void entry_activated(GtkEditable *editable)
 574 {
 575         grouplist_search();
 576 }
 577
 578 static void search_clicked(GtkWidget *widget, gpointer data)
 579 {
 580         grouplist_search();
 581 }