sync with sylpheed 0.7.0cvs12
[claws.git] / 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 }