2012-10-12 [mones] 3.8.1cvs98
[claws.git] / src / grouplistdialog.c
1 /*
2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3  * Copyright (C) 1999-2012 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 #include "claws-features.h"
23 #endif
24
25 #include "defs.h"
26
27 #include <glib.h>
28 #include <glib/gi18n.h>
29 #include <gdk/gdkkeysyms.h>
30 #include <gtk/gtk.h>
31 #include <string.h>
32
33 #include "grouplistdialog.h"
34 #include "mainwindow.h"
35 #include "manage_window.h"
36 #include "gtkutils.h"
37 #include "utils.h"
38 #include "news.h"
39 #include "folder.h"
40 #include "alertpanel.h"
41 #include "recv.h"
42 #include "socket.h"
43 #include "prefs_common.h"
44
45 #define GROUPLIST_DIALOG_WIDTH          450
46 #define GROUPLIST_DIALOG_HEIGHT         400
47 #define GROUPLIST_COL_NAME_WIDTH        250
48
49 static gboolean ack;
50 static gboolean locked;
51
52 static GtkWidget *dialog;
53 static GtkWidget *entry;
54 static GtkWidget *ctree;
55 static GtkWidget *status_label;
56 static GtkWidget *ok_button;
57 static GSList *group_list;
58 static Folder *news_folder;
59
60 static GSList *subscribed;
61
62 static void grouplist_dialog_create     (void);
63 static void grouplist_dialog_set_list   (const gchar    *pattern,
64                                          gboolean        refresh);
65 static void grouplist_search            (void);
66 static void grouplist_clear             (void);
67 static gboolean grouplist_recv_func     (SockInfo       *sock,
68                                          gint            count,
69                                          gint            read_bytes,
70                                          gpointer        data);
71 static void grouplist_size_allocate     (GtkWidget *widget,
72                                          GtkAllocation *allocation);
73
74 static gint window_deleted      (GtkWidget      *widget,
75                                  GdkEventAny    *event,
76                                  gpointer        data);
77 static void ok_clicked          (GtkWidget      *widget,
78                                  gpointer        data);
79 static void cancel_clicked      (GtkWidget      *widget,
80                                  gpointer        data);
81 static void refresh_clicked     (GtkWidget      *widget,
82                                  gpointer        data);
83 static gboolean key_pressed     (GtkWidget      *widget,
84                                  GdkEventKey    *event,
85                                  gpointer        data);
86 static gboolean button_press_cb (GtkCMCTree     *ctree,
87                                  GdkEventButton *button,
88                                  gpointer        data);
89 static void entry_activated     (GtkEditable    *editable);
90 static void search_clicked      (GtkWidget      *widget,
91                                  gpointer        data);
92
93 GSList *grouplist_dialog(Folder *folder)
94 {
95         GNode *node;
96         FolderItem *item;
97
98         if (dialog && gtk_widget_get_visible(dialog)) return NULL;
99
100         if (!dialog)
101                 grouplist_dialog_create();
102
103         news_folder = folder;
104
105         gtk_widget_show(dialog);
106         gtk_window_set_modal(GTK_WINDOW(dialog), TRUE);
107         manage_window_set_transient(GTK_WINDOW(dialog));
108         gtk_widget_grab_focus(ok_button);
109         gtk_widget_grab_focus(ctree);
110         GTK_EVENTS_FLUSH();
111
112         subscribed = NULL;
113         for (node = folder->node->children; node != NULL; node = node->next) {
114                 item = FOLDER_ITEM(node->data);
115                 subscribed = g_slist_append(subscribed, g_strdup(item->path));
116         }
117
118         grouplist_dialog_set_list(NULL, TRUE);
119
120         if (ack) gtk_main();
121
122         manage_window_focus_out(dialog, NULL, NULL);
123         gtk_widget_hide(dialog);
124
125         if (!ack) {
126                 slist_free_strings_full(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_get_action_area(GTK_DIALOG(dialog))), 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(
172                                 gtk_dialog_get_content_area(GTK_DIALOG(dialog))), vbox);
173         gtk_container_set_border_width(GTK_CONTAINER(vbox), 8);
174
175         hbox = gtk_hbox_new(FALSE, 0);
176         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
177
178         msg_label = gtk_label_new(_("Select newsgroups for subscription:"));
179         gtk_box_pack_start(GTK_BOX(hbox), msg_label, FALSE, FALSE, 0);
180
181         hbox = gtk_hbox_new(FALSE, 8);
182         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
183
184         msg_label = gtk_label_new(_("Find groups:"));
185         gtk_box_pack_start(GTK_BOX(hbox), msg_label, FALSE, FALSE, 0);
186
187         entry = gtk_entry_new();
188         gtk_box_pack_start(GTK_BOX(hbox), entry, TRUE, TRUE, 0);
189         g_signal_connect(G_OBJECT(entry), "activate",
190                          G_CALLBACK(entry_activated), NULL);
191
192         search_button = gtk_button_new_with_label(_(" Search "));
193         gtk_box_pack_start(GTK_BOX(hbox), search_button, FALSE, FALSE, 0);
194
195         g_signal_connect(G_OBJECT(search_button), "clicked",
196                          G_CALLBACK(search_clicked), NULL);
197
198         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
199         gtk_box_pack_start(GTK_BOX (vbox), scrolledwin, TRUE, TRUE, 0);
200         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW (scrolledwin),
201                                        GTK_POLICY_AUTOMATIC,
202                                        GTK_POLICY_AUTOMATIC);
203
204         titles[0] = _("Newsgroup name");
205         titles[1] = _("Messages");
206         titles[2] = _("Type");
207         ctree = gtk_sctree_new_with_titles(3, 0, titles);
208         gtk_container_add(GTK_CONTAINER(scrolledwin), ctree);
209         gtk_cmclist_set_column_width
210                 (GTK_CMCLIST(ctree), 0, GROUPLIST_COL_NAME_WIDTH);
211         gtk_cmclist_set_column_auto_resize(GTK_CMCLIST(ctree), 0, TRUE);
212         gtk_cmclist_set_selection_mode(GTK_CMCLIST(ctree), GTK_SELECTION_MULTIPLE);
213         
214         gtk_cmctree_set_line_style(GTK_CMCTREE(ctree), GTK_CMCTREE_LINES_NONE);
215         gtk_cmctree_set_expander_style(GTK_CMCTREE(ctree),
216                                 GTK_CMCTREE_EXPANDER_TRIANGLE);
217
218         for (i = 0; i < 3; i++)
219                 gtkut_widget_set_can_focus(GTK_CMCLIST(ctree)->column[i].button, FALSE);
220         g_signal_connect(G_OBJECT(ctree), "button-press-event",
221                          G_CALLBACK(button_press_cb), NULL);
222
223         hbox = gtk_hbox_new(FALSE, 0);
224         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
225
226         status_label = gtk_label_new("");
227         gtk_box_pack_start(GTK_BOX(hbox), status_label, FALSE, FALSE, 0);
228
229         gtkut_stock_button_set_create(&confirm_area,
230                                       &refresh_button, GTK_STOCK_REFRESH,
231                                       &cancel_button, GTK_STOCK_CANCEL,
232                                       &ok_button, GTK_STOCK_OK);
233         gtk_container_add(GTK_CONTAINER(gtk_dialog_get_action_area(GTK_DIALOG(dialog))),
234                           confirm_area);
235         gtk_widget_grab_default(ok_button);
236
237         g_signal_connect(G_OBJECT(ok_button), "clicked",
238                          G_CALLBACK(ok_clicked), NULL);
239         g_signal_connect(G_OBJECT(cancel_button), "clicked",
240                          G_CALLBACK(cancel_clicked), NULL);
241         g_signal_connect(G_OBJECT(refresh_button), "clicked",
242                          G_CALLBACK(refresh_clicked), NULL);
243
244         if (!geometry.min_width) {
245                 geometry.min_width = GROUPLIST_DIALOG_WIDTH;
246                 geometry.min_height = GROUPLIST_DIALOG_HEIGHT;
247         }
248
249         gtk_window_set_geometry_hints(GTK_WINDOW(dialog), NULL, &geometry,
250                                       GDK_HINT_MIN_SIZE);
251         gtk_window_set_default_size(GTK_WINDOW(dialog),
252                                         prefs_common.news_subscribe_width,
253                                         prefs_common.news_subscribe_height);
254
255         gtk_widget_show_all(gtk_dialog_get_content_area(GTK_DIALOG(dialog)));
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 GtkCMCTreeNode *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                                            GtkCMCTreeNode *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 GtkCMCTreeNode *grouplist_create_parent(const gchar *name,
293                                              const gchar *pattern)
294 {
295         GtkCMCTreeNode *parent;
296         GtkCMCTreeNode *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_CMCTREE_ROW(parent)->children
311                 : GTK_CMCTREE_NODE(GTK_CMCLIST(ctree)->row_list);
312         node = gtk_sctree_insert_node(GTK_CMCTREE(ctree), parent, node,
313                                      cols, 0, NULL, NULL,
314                                      FALSE, FALSE);
315         if (parent && g_pattern_match_simple(pattern, parent_name) == FALSE)
316                 gtk_cmctree_expand(GTK_CMCTREE(ctree), parent);
317         gtk_cmctree_node_set_selectable(GTK_CMCTREE(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 GtkCMCTreeNode *grouplist_create_branch(NewsGroupInfo *ginfo,
327                                              const gchar *pattern)
328 {
329         GtkCMCTreeNode *node;
330         GtkCMCTreeNode *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_cmctree_set_node_info(GTK_CMCTREE(ctree), node, cols[0], 0,
358                                         NULL, NULL, FALSE, FALSE);
359                 gtk_cmctree_node_set_text(GTK_CMCTREE(ctree), node, 1, cols[1]);
360                 gtk_cmctree_node_set_text(GTK_CMCTREE(ctree), node, 2, cols[2]);
361         } else {
362                 node = parent ? GTK_CMCTREE_ROW(parent)->children
363                         : GTK_CMCTREE_NODE(GTK_CMCLIST(ctree)->row_list);
364                 node = gtk_sctree_insert_node(GTK_CMCTREE(ctree), parent, node,
365                                              cols, 0, NULL, NULL,
366                                              TRUE, FALSE);
367                 if (parent &&
368                     g_pattern_match_simple(pattern, parent_name) == FALSE)
369                         gtk_cmctree_expand(GTK_CMCTREE(ctree), parent);
370         }
371         gtk_cmctree_node_set_selectable(GTK_CMCTREE(ctree), node, TRUE);
372         if (node)
373                 gtk_cmctree_node_set_row_data(GTK_CMCTREE(ctree), node, ginfo);
374
375         g_free(parent_name);
376
377         return node;
378 }
379
380 static void grouplist_expand_upwards(GtkCMCTree *ctree, const gchar *name) {
381         const gchar *ptr;
382         gchar *newname=g_malloc0(strlen(name));
383
384         for (ptr=name; *ptr; ptr++) {
385                 if (*ptr == '.')
386                         gtk_cmctree_expand(ctree, 
387                                 grouplist_hash_get_branch_node(newname));
388                 newname[ptr-name] = *ptr;
389         }
390         g_free(newname);
391 }
392
393 static void grouplist_dialog_set_list(const gchar *pattern, gboolean refresh)
394 {
395         static GdkCursor *watch_cursor = NULL;
396         GSList *cur;
397         GtkCMCTreeNode *node;
398         GPatternSpec *pspec;
399         GdkWindow *window;
400
401         if (locked) return;
402         locked = TRUE;
403
404         if (!pattern || *pattern == '\0')
405                 pattern = "*";
406
407         if (!watch_cursor)
408                 watch_cursor = gdk_cursor_new(GDK_WATCH);
409         window = gtk_widget_get_window(dialog);
410         gdk_window_set_cursor(window, watch_cursor);
411         main_window_cursor_wait(mainwindow_get_mainwindow());
412         GTK_EVENTS_FLUSH();
413         
414         if (refresh) {
415                 ack = TRUE;
416                 grouplist_clear();
417                 recv_set_ui_func(grouplist_recv_func, NULL);
418                 group_list = news_get_group_list(news_folder);
419                 group_list = g_slist_reverse(group_list);
420                 recv_set_ui_func(NULL, NULL);
421                 if (group_list == NULL && ack == TRUE) {
422                         alertpanel_error(_("Can't retrieve newsgroup list."));
423                         locked = FALSE;
424                         gdk_window_set_cursor(window, NULL);
425                         main_window_cursor_normal(mainwindow_get_mainwindow());
426                         return;
427                 }
428         } else
429                 gtk_cmclist_clear(GTK_CMCLIST(ctree));
430
431         gtk_entry_set_text(GTK_ENTRY(entry), pattern);
432
433         grouplist_hash_init();
434
435         gtk_cmclist_freeze(GTK_CMCLIST(ctree));
436
437         pspec = g_pattern_spec_new(pattern);
438
439         for (cur = group_list; cur != NULL ; cur = cur->next) {
440                 NewsGroupInfo *ginfo = (NewsGroupInfo *)cur->data;
441
442                 if (g_pattern_match_string(pspec, ginfo->name)) {
443                         node = grouplist_create_branch(ginfo, pattern);
444                         if (g_slist_find_custom(subscribed, ginfo->name,
445                                                 (GCompareFunc)g_ascii_strcasecmp)
446                             != NULL)
447                                 gtk_cmctree_select(GTK_CMCTREE(ctree), node);
448                 }
449         }
450         for (cur = subscribed; cur; cur = g_slist_next(cur))
451                 grouplist_expand_upwards(GTK_CMCTREE(ctree), (gchar *)cur->data);
452
453         g_pattern_spec_free(pspec);
454
455         gtk_cmclist_thaw(GTK_CMCLIST(ctree));
456
457         grouplist_hash_done();
458
459         gtk_label_set_text(GTK_LABEL(status_label), _("Done."));
460
461         gdk_window_set_cursor(window, NULL);
462         main_window_cursor_normal(mainwindow_get_mainwindow());
463
464         locked = FALSE;
465 }
466
467 static void grouplist_search(void)
468 {
469         gchar *str;
470
471         if (locked) return;
472
473         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
474         grouplist_dialog_set_list(str, FALSE);
475         g_free(str);
476 }
477
478 static void grouplist_clear(void)
479 {
480         gtk_cmclist_clear(GTK_CMCLIST(ctree));
481         gtk_entry_set_text(GTK_ENTRY(entry), "");
482         news_group_list_free(group_list);
483         group_list = NULL;
484 }
485
486 static gboolean grouplist_recv_func(SockInfo *sock, gint count, gint read_bytes,
487                                     gpointer data)
488 {
489         gchar buf[BUFFSIZE];
490
491         g_snprintf(buf, sizeof(buf),
492                    _("%d newsgroups received (%s read)"),
493                    count, to_human_readable((goffset)read_bytes));
494         gtk_label_set_text(GTK_LABEL(status_label), buf);
495         GTK_EVENTS_FLUSH();
496         if (ack == FALSE)
497                 return FALSE;
498         else
499                 return TRUE;
500 }
501
502 static void grouplist_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
503 {
504         cm_return_if_fail( allocation != NULL );
505         
506         prefs_common.news_subscribe_width       = allocation->width;
507         prefs_common.news_subscribe_height      = allocation->height;
508 }
509
510 static gint window_deleted(GtkWidget *widget, GdkEventAny *event, gpointer data)
511 {
512         ack = FALSE;
513         if (gtk_main_level() > 1)
514                 gtk_main_quit();
515
516         return TRUE;
517 }
518
519 static void ok_clicked(GtkWidget *widget, gpointer data)
520 {
521         ack = TRUE;
522         if (gtk_main_level() > 1)
523                 gtk_main_quit();
524 }
525
526 static void cancel_clicked(GtkWidget *widget, gpointer data)
527 {
528         ack = FALSE;
529         if (gtk_main_level() > 1)
530                 gtk_main_quit();
531 }
532
533 static void refresh_clicked(GtkWidget *widget, gpointer data)
534
535         gchar *str;
536
537         if (locked) return;
538
539         news_remove_group_list_cache(news_folder);
540
541         str = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
542         grouplist_dialog_set_list(str, TRUE);
543         g_free(str);
544 }
545
546 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
547 {
548         if (event && event->keyval == GDK_KEY_Escape)
549                 cancel_clicked(NULL, NULL);
550         return FALSE;
551 }
552
553 /* clist/ctree clear old selection on click (gtk2 only)
554  * - intercept all button clicks (always return TRUE)
555  * - only allow left button single click
556  * - handle click on expander
557  * - update "subscribed" list and un-/select row
558  */
559 static gboolean button_press_cb(GtkCMCTree *ctree, GdkEventButton *button,
560                                 gpointer data)
561 {
562         gint row, col;
563         GtkCMCTreeNode *node;
564         NewsGroupInfo *ginfo;
565         GSList *list;
566
567         if (button->type != GDK_BUTTON_PRESS) return TRUE;
568         if (button->button != 1) return TRUE;
569
570         gtk_cmclist_get_selection_info(GTK_CMCLIST(ctree), 
571                                      button->x, button->y, &row, &col);
572         node = gtk_cmctree_node_nth(ctree, row);
573         if (!node) return TRUE;
574
575         if (gtk_cmctree_is_hot_spot(ctree, button->x, button->y)) {
576                 gtk_cmctree_toggle_expansion(ctree, node);
577                 return TRUE;
578         }
579
580         ginfo = gtk_cmctree_node_get_row_data(ctree, node);
581         if (!ginfo) return TRUE;
582
583         list = g_slist_find_custom(subscribed, ginfo->name,
584                                    (GCompareFunc)g_ascii_strcasecmp);
585         if (list) {
586                 g_free(list->data);
587                 subscribed = g_slist_remove(subscribed, list->data);
588                 gtk_cmclist_unselect_row(GTK_CMCLIST(ctree), row, 0);
589         } else {
590                 subscribed = g_slist_append(subscribed, g_strdup(ginfo->name));
591                 gtk_cmclist_select_row(GTK_CMCLIST(ctree), row, 0);
592         }
593
594         return TRUE;
595 }
596
597 static void entry_activated(GtkEditable *editable)
598 {
599         grouplist_search();
600 }
601
602 static void search_clicked(GtkWidget *widget, gpointer data)
603 {
604         grouplist_search();
605 }