2010-03-22 [pawel] 3.7.5cvs36
[claws.git] / src / grouplistdialog.c
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2009 Hiroyuki Yamamoto and the Claws Mail team
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 3 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, see <http://www.gnu.org/licenses/>.
17  * 
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/gtk.h>
30 #include <string.h>
31
32 #include "grouplistdialog.h"
33 #include "mainwindow.h"
34 #include "manage_window.h"
35 #include "gtkutils.h"
36 #include "utils.h"
37 #include "news.h"
38 #include "folder.h"
39 #include "alertpanel.h"
40 #include "recv.h"
41 #include "socket.h"
42 #include "prefs_common.h"
43
44 #define GROUPLIST_DIALOG_WIDTH          450
45 #define GROUPLIST_DIALOG_HEIGHT         400
46 #define GROUPLIST_COL_NAME_WIDTH        250
47
48 static gboolean ack;
49 static gboolean locked;
50
51 static GtkWidget *dialog;
52 static GtkWidget *entry;
53 static GtkWidget *ctree;
54 static GtkWidget *status_label;
55 static GtkWidget *ok_button;
56 static GSList *group_list;
57 static Folder *news_folder;
58
59 static GSList *subscribed;
60
61 static void grouplist_dialog_create     (void);
62 static void grouplist_dialog_set_list   (const gchar    *pattern,
63                                          gboolean        refresh);
64 static void grouplist_search            (void);
65 static void grouplist_clear             (void);
66 static gboolean grouplist_recv_func     (SockInfo       *sock,
67                                          gint            count,
68                                          gint            read_bytes,
69                                          gpointer        data);
70 static void grouplist_size_allocate     (GtkWidget *widget,
71                                          GtkAllocation *allocation);
72
73 static gint window_deleted      (GtkWidget      *widget,
74                                  GdkEventAny    *event,
75                                  gpointer        data);
76 static void ok_clicked          (GtkWidget      *widget,
77                                  gpointer        data);
78 static void cancel_clicked      (GtkWidget      *widget,
79                                  gpointer        data);
80 static void refresh_clicked     (GtkWidget      *widget,
81                                  gpointer        data);
82 static gboolean key_pressed     (GtkWidget      *widget,
83                                  GdkEventKey    *event,
84                                  gpointer        data);
85 static gboolean button_press_cb (GtkCMCTree     *ctree,
86                                  GdkEventButton *button,
87                                  gpointer        data);
88 static void entry_activated     (GtkEditable    *editable);
89 static void search_clicked      (GtkWidget      *widget,
90                                  gpointer        data);
91
92 GSList *grouplist_dialog(Folder *folder)
93 {
94         GNode *node;
95         FolderItem *item;
96
97         if (dialog && GTK_WIDGET_VISIBLE(dialog)) return NULL;
98
99         if (!dialog)
100                 grouplist_dialog_create();
101
102         news_folder = folder;
103
104         gtk_widget_show(dialog);
105         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
106         manage_window_set_transient(GTK_WINDOW(dialog));
107         gtk_widget_grab_focus(ok_button);
108         gtk_widget_grab_focus(ctree);
109         GTK_EVENTS_FLUSH();
110
111         subscribed = NULL;
112         for (node = folder->node->children; node != NULL; node = node->next) {
113                 item = FOLDER_ITEM(node->data);
114                 subscribed = g_slist_append(subscribed, g_strdup(item->path));
115         }
116
117         grouplist_dialog_set_list(NULL, TRUE);
118
119         if (ack) gtk_main();
120
121         manage_window_focus_out(dialog, NULL, NULL);
122         gtk_widget_hide(dialog);
123
124         if (!ack) {
125                 slist_free_strings(subscribed);
126                 g_slist_free(subscribed);
127                 subscribed = NULL;
128
129                 for (node = folder->node->children; node != NULL;
130                      node = node->next) {
131                         item = FOLDER_ITEM(node->data);
132                         subscribed = g_slist_append(subscribed,
133                                                     g_strdup(item->path));
134                 }
135         }
136
137         grouplist_clear();
138
139         return subscribed;
140 }
141
142 static void grouplist_dialog_create(void)
143 {
144         GtkWidget *vbox;
145         GtkWidget *hbox;
146         GtkWidget *msg_label;
147         GtkWidget *search_button;
148         GtkWidget *confirm_area;
149         GtkWidget *cancel_button;       
150         GtkWidget *refresh_button;      
151         GtkWidget *scrolledwin;
152         static GdkGeometry geometry;
153         gchar *titles[3];
154         gint i;
155
156         dialog = gtk_dialog_new();
157         gtk_window_set_resizable(GTK_WINDOW(dialog), TRUE);
158         gtk_container_set_border_width
159                 (GTK_CONTAINER(GTK_DIALOG(dialog)->action_area), 5);
160         gtk_window_set_position(GTK_WINDOW(dialog), GTK_WIN_POS_CENTER);
161         gtk_window_set_title(GTK_WINDOW(dialog), _("Newsgroup subscription"));
162         g_signal_connect(G_OBJECT(dialog), "delete_event",
163                          G_CALLBACK(window_deleted), NULL);
164         g_signal_connect(G_OBJECT(dialog), "key_press_event",
165                          G_CALLBACK(key_pressed), NULL);
166         g_signal_connect(G_OBJECT(dialog), "size_allocate",
167                          G_CALLBACK(grouplist_size_allocate), NULL);
168         MANAGE_WINDOW_SIGNALS_CONNECT(dialog);
169
170         vbox = gtk_vbox_new(FALSE, 8);
171         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->vbox), vbox);
172         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
173
174         hbox = gtk_hbox_new(FALSE, 0);
175         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
176
177         msg_label = gtk_label_new(_("Select newsgroups for subscription:"));
178         gtk_box_pack_start(GTK_BOX(hbox), msg_label, FALSE, FALSE, 0);
179
180         hbox = gtk_hbox_new(FALSE, 8);
181         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
182
183         msg_label = gtk_label_new(_("Find groups:"));
184         gtk_box_pack_start(GTK_BOX(hbox), msg_label, FALSE, FALSE, 0);
185
186         entry = gtk_entry_new();
187         gtk_box_pack_start(GTK_BOX(hbox), entry, TRUE, TRUE, 0);
188         g_signal_connect(G_OBJECT(entry), "activate",
189                          G_CALLBACK(entry_activated), NULL);
190
191         search_button = gtk_button_new_with_label(_(" Search "));
192         gtk_box_pack_start(GTK_BOX(hbox), search_button, FALSE, FALSE, 0);
193
194         g_signal_connect(G_OBJECT(search_button), "clicked",
195                          G_CALLBACK(search_clicked), NULL);
196
197         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
198         gtk_box_pack_start(GTK_BOX (vbox), scrolledwin, TRUE, TRUE, 0);
199         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW (scrolledwin),
200                                        GTK_POLICY_AUTOMATIC,
201                                        GTK_POLICY_AUTOMATIC);
202
203         titles[0] = _("Newsgroup name");
204         titles[1] = _("Messages");
205         titles[2] = _("Type");
206         ctree = gtk_sctree_new_with_titles(3, 0, titles);
207         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
208         gtk_cmclist_set_column_width
209                 (GTK_CMCLIST(ctree), 0, GROUPLIST_COL_NAME_WIDTH);
210         gtk_cmclist_set_column_auto_resize(GTK_CMCLIST(ctree), 0, TRUE);
211         gtk_cmclist_set_selection_mode(GTK_CMCLIST(ctree), GTK_SELECTION_MULTIPLE);
212         
213         if (prefs_common.enable_dotted_lines) { 
214                 gtk_cmctree_set_line_style(GTK_CMCTREE(ctree), GTK_CMCTREE_LINES_DOTTED);
215                 gtk_cmctree_set_expander_style(GTK_CMCTREE(ctree),
216                                         GTK_CMCTREE_EXPANDER_SQUARE);
217         } else {
218                 gtk_cmctree_set_line_style(GTK_CMCTREE(ctree), GTK_CMCTREE_LINES_NONE);
219                 gtk_cmctree_set_expander_style(GTK_CMCTREE(ctree),
220                                         GTK_CMCTREE_EXPANDER_TRIANGLE);
221         }
222
223         for (i = 0; i < 3; i++)
224                 GTK_WIDGET_UNSET_FLAGS(GTK_CMCLIST(ctree)->column[i].button,
225                                        GTK_CAN_FOCUS);
226         g_signal_connect(G_OBJECT(ctree), "button-press-event",
227                          G_CALLBACK(button_press_cb), NULL);
228
229         hbox = gtk_hbox_new(FALSE, 0);
230         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
231
232         status_label = gtk_label_new("");
233         gtk_box_pack_start(GTK_BOX(hbox), status_label, FALSE, FALSE, 0);
234
235         gtkut_stock_button_set_create(&confirm_area,
236                                       &refresh_button, GTK_STOCK_REFRESH,
237                                       &cancel_button, GTK_STOCK_CANCEL,
238                                       &ok_button, GTK_STOCK_OK);
239         gtk_container_add(GTK_CONTAINER(GTK_DIALOG(dialog)->action_area),
240                           confirm_area);
241         gtk_widget_grab_default(ok_button);
242
243         g_signal_connect(G_OBJECT(ok_button), "clicked",
244                          G_CALLBACK(ok_clicked), NULL);
245         g_signal_connect(G_OBJECT(cancel_button), "clicked",
246                          G_CALLBACK(cancel_clicked), NULL);
247         g_signal_connect(G_OBJECT(refresh_button), "clicked",
248                          G_CALLBACK(refresh_clicked), NULL);
249
250         if (!geometry.min_width) {
251                 geometry.min_width = GROUPLIST_DIALOG_WIDTH;
252                 geometry.min_height = GROUPLIST_DIALOG_HEIGHT;
253         }
254
255         gtk_window_set_geometry_hints(GTK_WINDOW(dialog), NULL, &geometry,
256                                       GDK_HINT_MIN_SIZE);
257         gtk_window_set_default_size(GTK_WINDOW(dialog),
258                                         prefs_common.news_subscribe_width,
259                                         prefs_common.news_subscribe_height);
260
261         gtk_widget_show_all(GTK_DIALOG(dialog)->vbox);
262 }
263
264 static GHashTable *branch_node_table;
265
266 static void grouplist_hash_init(void)
267 {
268         branch_node_table = g_hash_table_new(g_str_hash, g_str_equal);
269 }
270
271 static void grouplist_hash_done(void)
272 {
273         hash_free_strings(branch_node_table);
274         g_hash_table_destroy(branch_node_table);
275 }
276
277 static GtkCMCTreeNode *grouplist_hash_get_branch_node(const gchar *name)
278 {
279         return g_hash_table_lookup(branch_node_table, name);
280 }
281
282 static void grouplist_hash_set_branch_node(const gchar *name,
283                                            GtkCMCTreeNode *node)
284 {
285         g_hash_table_insert(branch_node_table, g_strdup(name), node);
286 }
287
288 static gchar *grouplist_get_parent_name(const gchar *name)
289 {
290         gchar *p;
291
292         p = strrchr(name, '.');
293         if (!p)
294                 return g_strdup("");
295         return g_strndup(name, p - name);
296 }
297
298 static GtkCMCTreeNode *grouplist_create_parent(const gchar *name,
299                                              const gchar *pattern)
300 {
301         GtkCMCTreeNode *parent;
302         GtkCMCTreeNode *node;
303         gchar *cols[3];
304         gchar *parent_name;
305
306         if (*name == '\0') return NULL;
307         node = grouplist_hash_get_branch_node(name);
308         if (node != NULL) return node;
309
310         cols[0] = (gchar *)name;
311         cols[1] = cols[2] = "";
312
313         parent_name = grouplist_get_parent_name(name);
314         parent = grouplist_create_parent(parent_name, pattern);
315
316         node = parent ? GTK_CMCTREE_ROW(parent)->children
317                 : GTK_CMCTREE_NODE(GTK_CMCLIST(ctree)->row_list);
318         node = gtk_sctree_insert_node(GTK_CMCTREE(ctree), parent, node,
319                                      cols, 0, NULL, NULL,
320                                      FALSE, FALSE);
321         if (parent && g_pattern_match_simple(pattern, parent_name) == FALSE)
322                 gtk_cmctree_expand(GTK_CMCTREE(ctree), parent);
323         gtk_cmctree_node_set_selectable(GTK_CMCTREE(ctree), node, FALSE);
324
325         grouplist_hash_set_branch_node(name, node);
326
327         g_free(parent_name);
328
329         return node;
330 }
331
332 static GtkCMCTreeNode *grouplist_create_branch(NewsGroupInfo *ginfo,
333                                              const gchar *pattern)
334 {
335         GtkCMCTreeNode *node;
336         GtkCMCTreeNode *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, pattern);
361         node = grouplist_hash_get_branch_node(name);
362         if (node) {
363                 gtk_sctree_set_node_info(GTK_CMCTREE(ctree), node, cols[0], 0,
364                                         NULL, NULL, FALSE, FALSE);
365                 gtk_cmctree_node_set_text(GTK_CMCTREE(ctree), node, 1, cols[1]);
366                 gtk_cmctree_node_set_text(GTK_CMCTREE(ctree), node, 2, cols[2]);
367         } else {
368                 node = parent ? GTK_CMCTREE_ROW(parent)->children
369                         : GTK_CMCTREE_NODE(GTK_CMCLIST(ctree)->row_list);
370                 node = gtk_sctree_insert_node(GTK_CMCTREE(ctree), parent, node,
371                                              cols, 0, NULL, NULL,
372                                              TRUE, FALSE);
373                 if (parent &&
374                     g_pattern_match_simple(pattern, parent_name) == FALSE)
375                         gtk_cmctree_expand(GTK_CMCTREE(ctree), parent);
376         }
377         gtk_cmctree_node_set_selectable(GTK_CMCTREE(ctree), node, TRUE);
378         if (node)
379                 gtk_cmctree_node_set_row_data(GTK_CMCTREE(ctree), node, ginfo);
380
381         g_free(parent_name);
382
383         return node;
384 }
385
386 static void grouplist_expand_upwards(GtkCMCTree *ctree, const gchar *name) {
387         const gchar *ptr;
388         gchar *newname=g_malloc0(strlen(name));
389
390         for (ptr=name; *ptr; ptr++) {
391                 if (*ptr == '.')
392                         gtk_cmctree_expand(ctree, 
393                                 grouplist_hash_get_branch_node(newname));
394                 newname[ptr-name] = *ptr;
395         }
396         g_free(newname);
397 }
398
399 static void grouplist_dialog_set_list(const gchar *pattern, gboolean refresh)
400 {
401         static GdkCursor *watch_cursor = NULL;
402         GSList *cur;
403         GtkCMCTreeNode *node;
404         GPatternSpec *pspec;
405
406         if (locked) return;
407         locked = TRUE;
408
409         if (!pattern || *pattern == '\0')
410                 pattern = "*";
411
412         if (!watch_cursor)
413                 watch_cursor = gdk_cursor_new(GDK_WATCH);
414         gdk_window_set_cursor(dialog->window, watch_cursor);
415         main_window_cursor_wait(mainwindow_get_mainwindow());
416         GTK_EVENTS_FLUSH();
417         
418         if (refresh) {
419                 ack = TRUE;
420                 grouplist_clear();
421                 recv_set_ui_func(grouplist_recv_func, NULL);
422                 group_list = news_get_group_list(news_folder);
423                 group_list = g_slist_reverse(group_list);
424                 recv_set_ui_func(NULL, NULL);
425                 if (group_list == NULL && ack == TRUE) {
426                         alertpanel_error(_("Can't retrieve newsgroup list."));
427                         locked = FALSE;
428                         gdk_window_set_cursor(dialog->window, NULL);
429                         main_window_cursor_normal(mainwindow_get_mainwindow());
430                         return;
431                 }
432         } else
433                 gtk_cmclist_clear(GTK_CMCLIST(ctree));
434
435         gtk_entry_set_text(GTK_ENTRY(entry), pattern);
436
437         grouplist_hash_init();
438
439         gtk_cmclist_freeze(GTK_CMCLIST(ctree));
440
441         pspec = g_pattern_spec_new(pattern);
442
443         for (cur = group_list; cur != NULL ; cur = cur->next) {
444                 NewsGroupInfo *ginfo = (NewsGroupInfo *)cur->data;
445
446                 if (g_pattern_match_string(pspec, ginfo->name)) {
447                         node = grouplist_create_branch(ginfo, pattern);
448                         if (g_slist_find_custom(subscribed, ginfo->name,
449                                                 (GCompareFunc)g_ascii_strcasecmp)
450                             != NULL)
451                                 gtk_cmctree_select(GTK_CMCTREE(ctree), node);
452                 }
453         }
454         for (cur = subscribed; cur; cur = g_slist_next(cur))
455                 grouplist_expand_upwards(GTK_CMCTREE(ctree), (gchar *)cur->data);
456
457         g_pattern_spec_free(pspec);
458
459         gtk_cmclist_thaw(GTK_CMCLIST(ctree));
460
461         grouplist_hash_done();
462
463         gtk_label_set_text(GTK_LABEL(status_label), _("Done."));
464
465         gdk_window_set_cursor(dialog->window, NULL);
466         main_window_cursor_normal(mainwindow_get_mainwindow());
467
468         locked = FALSE;
469 }
470
471 static void grouplist_search(void)
472 {
473         gchar *str;
474
475         if (locked) return;
476
477         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
478         grouplist_dialog_set_list(str, FALSE);
479         g_free(str);
480 }
481
482 static void grouplist_clear(void)
483 {
484         gtk_cmclist_clear(GTK_CMCLIST(ctree));
485         gtk_entry_set_text(GTK_ENTRY(entry), "");
486         news_group_list_free(group_list);
487         group_list = NULL;
488 }
489
490 static gboolean grouplist_recv_func(SockInfo *sock, gint count, gint read_bytes,
491                                     gpointer data)
492 {
493         gchar buf[BUFFSIZE];
494
495         g_snprintf(buf, sizeof(buf),
496                    _("%d newsgroups received (%s read)"),
497                    count, to_human_readable((goffset)read_bytes));
498         gtk_label_set_text(GTK_LABEL(status_label), buf);
499         GTK_EVENTS_FLUSH();
500         if (ack == FALSE)
501                 return FALSE;
502         else
503                 return TRUE;
504 }
505
506 static void grouplist_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
507 {
508         cm_return_if_fail( allocation != NULL );
509         
510         prefs_common.news_subscribe_width       = allocation->width;
511         prefs_common.news_subscribe_height      = allocation->height;
512 }
513
514 static gint window_deleted(GtkWidget *widget, GdkEventAny *event, gpointer data)
515 {
516         ack = FALSE;
517         if (gtk_main_level() > 1)
518                 gtk_main_quit();
519
520         return TRUE;
521 }
522
523 static void ok_clicked(GtkWidget *widget, gpointer data)
524 {
525         ack = TRUE;
526         if (gtk_main_level() > 1)
527                 gtk_main_quit();
528 }
529
530 static void cancel_clicked(GtkWidget *widget, gpointer data)
531 {
532         ack = FALSE;
533         if (gtk_main_level() > 1)
534                 gtk_main_quit();
535 }
536
537 static void refresh_clicked(GtkWidget *widget, gpointer data)
538
539         gchar *str;
540
541         if (locked) return;
542
543         news_remove_group_list_cache(news_folder);
544
545         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
546         grouplist_dialog_set_list(str, TRUE);
547         g_free(str);
548 }
549
550 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
551 {
552         if (event && event->keyval == GDK_Escape)
553                 cancel_clicked(NULL, NULL);
554         return FALSE;
555 }
556
557 /* clist/ctree clear old selection on click (gtk2 only)
558  * - intercept all button clicks (always return TRUE)
559  * - only allow left button single click
560  * - handle click on expander
561  * - update "subscribed" list and un-/select row
562  */
563 static gboolean button_press_cb(GtkCMCTree *ctree, GdkEventButton *button,
564                                 gpointer data)
565 {
566         gint row, col;
567         GtkCMCTreeNode *node;
568         NewsGroupInfo *ginfo;
569         GSList *list;
570
571         if (button->type != GDK_BUTTON_PRESS) return TRUE;
572         if (button->button != 1) return TRUE;
573
574         gtk_cmclist_get_selection_info(GTK_CMCLIST(ctree), 
575                                      button->x, button->y, &row, &col);
576         node = gtk_cmctree_node_nth(ctree, row);
577         if (!node) return TRUE;
578
579         if (gtk_cmctree_is_hot_spot(ctree, button->x, button->y)) {
580                 gtk_cmctree_toggle_expansion(ctree, node);
581                 return TRUE;
582         }
583
584         ginfo = gtk_cmctree_node_get_row_data(ctree, node);
585         if (!ginfo) return TRUE;
586
587         list = g_slist_find_custom(subscribed, ginfo->name,
588                                    (GCompareFunc)g_ascii_strcasecmp);
589         if (list) {
590                 g_free(list->data);
591                 subscribed = g_slist_remove(subscribed, list->data);
592                 gtk_cmclist_unselect_row(GTK_CMCLIST(ctree), row, 0);
593         } else {
594                 subscribed = g_slist_append(subscribed, g_strdup(ginfo->name));
595                 gtk_cmclist_select_row(GTK_CMCLIST(ctree), row, 0);
596         }
597
598         return TRUE;
599 }
600
601 static void entry_activated(GtkEditable *editable)
602 {
603         grouplist_search();
604 }
605
606 static void search_clicked(GtkWidget *widget, gpointer data)
607 {
608         grouplist_search();
609 }