src/foldersel.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2020 the Claws Mail team and 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 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 #include "defs.h"
  20
  21 #include <glib.h>
  22 #include <glib/gi18n.h>
  23 #include <gdk/gdkkeysyms.h>
  24 #include <gtk/gtk.h>
  25 #include <stdio.h>
  26 #include <unistd.h>
  27 #include <string.h>
  28 #include <sys/stat.h>
  29 #include <sys/types.h>
  30 #include <fcntl.h>
  31 #include <errno.h>
  32
  33 #include "main.h"
  34 #include "utils.h"
  35 #include "gtkutils.h"
  36 #include "stock_pixmap.h"
  37 #include "foldersel.h"
  38 #include "alertpanel.h"
  39 #include "manage_window.h"
  40 #include "folderview.h"
  41 #include "inputdialog.h"
  42 #include "folder.h"
  43 #include "prefs_common.h"
  44
  45 enum {
  46         FOLDERSEL_FOLDERNAME,
  47         FOLDERSEL_FOLDERITEM,
  48         FOLDERSEL_PIXBUF,
  49         FOLDERSEL_PIXBUF_OPEN,
  50         FOLDERSEL_FOREGROUND,
  51         FOLDERSEL_BOLD,
  52         N_FOLDERSEL_COLUMNS
  53 };
  54
  55 typedef struct _FolderItemSearch        FolderItemSearch;
  56
  57 struct _FolderItemSearch
  58 {
  59         FolderItem *item;
  60         GtkTreePath *path;
  61         GtkTreeIter iter;
  62 };
  63
  64 static GdkPixbuf *folder_pixbuf = NULL;
  65 static GdkPixbuf *folderopen_pixbuf = NULL;
  66 static GdkPixbuf *foldernoselect_pixbuf = NULL;
  67 static GdkPixbuf *foldernoselectopen_pixbuf = NULL;
  68
  69 static GtkWidget *window;
  70 static GtkWidget *treeview;
  71 static GtkWidget *statusbar;
  72 static gint statusbar_cid;
  73 static GtkWidget *ok_button;
  74 static GtkWidget *cancel_button;
  75 static GtkWidget *new_button;
  76 static gboolean   root_selectable;
  77
  78 static FolderItem *folder_item;
  79 static FolderItem *selected_item;
  80
  81 static GtkTreeStore *tree_store;
  82
  83 static gboolean cancelled;
  84 static gboolean finished;
  85
  86 static void foldersel_create            (const gchar *title);
  87 static void foldersel_init              (void);
  88
  89 static void foldersel_append_item       (GtkTreeStore   *store,
  90                                          FolderItem     *item,
  91                                          GtkTreeIter    *iter,
  92                                          GtkTreeIter    *parent);
  93
  94 static void foldersel_set_tree          (Folder                 *cur_folder,
  95                                          FolderSelectionType     type);
  96
  97 static gboolean foldersel_selected      (GtkTreeSelection *selection,
  98                                          GtkTreeModel     *model,
  99                                          GtkTreePath      *path,
 100                                          gboolean          currently_selected,
 101                                          gpointer          data);
 102
 103 static void foldersel_ok                (GtkButton      *button,
 104                                          gpointer        data);
 105 static void foldersel_cancel            (GtkButton      *button,
 106                                          gpointer        data);
 107 static void foldersel_new_folder        (GtkButton      *button,
 108                                          gpointer        data);
 109
 110 static void foldersel_entry_activated   (GtkEntry       *entry,
 111                                          gpointer        data);
 112
 113 static void foldersel_tree_activated    (GtkTreeView            *treeview,
 114                                          GtkTreePath            *path,
 115                                          GtkTreeViewColumn      *column,
 116                                          gpointer                data);
 117
 118 static gint delete_event                (GtkWidget      *widget,
 119                                          GdkEventAny    *event,
 120                                          gpointer        data);
 121 static gboolean key_pressed             (GtkWidget      *widget,
 122                                          GdkEventKey    *event,
 123                                          gpointer        data);
 124
 125 static gint foldersel_folder_name_compare       (GtkTreeModel   *model,
 126                                                  GtkTreeIter    *a,
 127                                                  GtkTreeIter    *b,
 128                                                  gpointer        context);
 129
 130 static gboolean tree_view_folder_item_func      (GtkTreeModel     *model,
 131                                                  GtkTreePath      *path,
 132                                                  GtkTreeIter      *iter,
 133                                                  FolderItemSearch *data);
 134
 135 FolderItem *foldersel_folder_sel(Folder *cur_folder, FolderSelectionType type,
 136                                  const gchar *default_folder, gboolean can_sel_mailbox,
 137                                  const gchar *title)
 138 {
 139         selected_item = NULL;
 140         root_selectable = can_sel_mailbox;
 141
 142         if (!window) {
 143                 foldersel_create(title);
 144                 foldersel_init();
 145         }
 146
 147         foldersel_set_tree(cur_folder, type);
 148
 149         /* select current */
 150         if (folder_item) {
 151                 FolderItemSearch fis;
 152
 153                 fis.item = folder_item;
 154                 fis.path = NULL;
 155
 156                 /* find matching model entry */
 157                 gtk_tree_model_foreach
 158                         (GTK_TREE_MODEL(tree_store),
 159                          (GtkTreeModelForeachFunc)tree_view_folder_item_func,
 160                          &fis);
 161
 162                 if (fis.path) {
 163                         GtkTreeSelection *selection;
 164
 165                         selection = gtk_tree_view_get_selection
 166                                 (GTK_TREE_VIEW(treeview));
 167                         gtk_tree_selection_select_iter(selection, &fis.iter);
 168                         gtk_tree_view_set_cursor(GTK_TREE_VIEW(treeview),
 169                                                  fis.path, NULL, FALSE);
 170                         gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(treeview),
 171                                                      fis.path,
 172                                                      NULL, TRUE, 0.5, 0.0);
 173                         gtk_tree_path_free(fis.path);
 174                 } else
 175                         gtk_tree_view_scroll_to_point
 176                                 (GTK_TREE_VIEW(treeview), 0, 0);
 177         } else
 178                 gtk_tree_view_scroll_to_point(GTK_TREE_VIEW(treeview), 0, 0);
 179
 180         gtk_widget_grab_focus(ok_button);
 181         gtk_widget_grab_focus(treeview);
 182
 183         gtk_window_present(GTK_WINDOW(window));
 184         manage_window_set_transient(GTK_WINDOW(window));
 185         gtk_window_set_modal(GTK_WINDOW(window), TRUE);
 186
 187         cancelled = finished = FALSE;
 188
 189         while (finished == FALSE)
 190                 gtk_main_iteration();
 191
 192         gtk_widget_destroy(window);
 193         window = NULL;
 194
 195         if (!cancelled &&
 196             selected_item && (selected_item->path || root_selectable)) {
 197                 folder_item = selected_item;
 198                 return folder_item;
 199         } else
 200                 return NULL;
 201 }
 202
 203 static gboolean foldersel_search_name_func(GtkTreeModel *model, gint column,
 204                 const gchar *key, GtkTreeIter *iter, gpointer search_data)
 205 {
 206         gchar *store_string = NULL;
 207         FolderItem *item;
 208         gboolean retval;
 209
 210         if (column == FOLDERSEL_FOLDERNAME) {
 211                 /* get the name of the FolderItem, not the displayed string */
 212                 gtk_tree_model_get(model, iter,
 213                            FOLDERSEL_FOLDERITEM, &item, -1);
 214                 store_string = folder_item_get_name(item);
 215         } else {
 216                 gtk_tree_model_get(model, iter, column, &store_string, -1);
 217         }
 218
 219         if (!store_string || !key)
 220                 return FALSE;
 221
 222         retval = (strcasestr(store_string, key) == NULL);
 223
 224         g_free(store_string);
 225
 226         return retval;
 227 }
 228
 229 static void foldersel_size_allocate_cb(GtkWidget *widget,
 230                                          GtkAllocation *allocation)
 231 {
 232         cm_return_if_fail(allocation != NULL);
 233
 234         prefs_common.folderselwin_width = allocation->width;
 235         prefs_common.folderselwin_height = allocation->height;
 236 }
 237
 238 static void foldersel_create(const gchar *title)
 239 {
 240         GtkWidget *vbox;
 241         GtkWidget *scrolledwin;
 242         GtkWidget *confirm_area;
 243         GtkWidget *label;
 244         GtkTreeViewColumn *column;
 245         GtkCellRenderer *renderer;
 246         GtkTreeSelection *selection;
 247         static GdkGeometry geometry;
 248
 249         window = gtkut_window_new(GTK_WINDOW_TOPLEVEL, "foldersel");
 250         gtk_window_set_title(GTK_WINDOW(window),_("Select folder"));
 251         gtk_container_set_border_width(GTK_CONTAINER(window), 4);
 252         gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
 253         gtk_window_set_resizable(GTK_WINDOW(window), TRUE);
 254         gtk_window_set_type_hint(GTK_WINDOW(window), GDK_WINDOW_TYPE_HINT_DIALOG);
 255
 256         gtk_widget_realize(window);
 257         g_signal_connect(G_OBJECT(window), "delete_event",
 258                          G_CALLBACK(delete_event), NULL);
 259         g_signal_connect(G_OBJECT(window), "key_press_event",
 260                          G_CALLBACK(key_pressed), NULL);
 261         g_signal_connect(G_OBJECT(window), "size_allocate",
 262                          G_CALLBACK(foldersel_size_allocate_cb), NULL);
 263         MANAGE_WINDOW_SIGNALS_CONNECT(window);
 264
 265         vbox = gtk_vbox_new(FALSE, 4);
 266         gtk_container_add(GTK_CONTAINER(window), vbox);
 267
 268         if (title != NULL) {
 269                 label = gtk_label_new(title);
 270                 gtk_label_set_line_wrap(GTK_LABEL(label), TRUE);
 271                 gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
 272         }
 273
 274         scrolledwin = gtk_scrolled_window_new(NULL, NULL);
 275         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolledwin),
 276                                        GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
 277         gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scrolledwin),
 278                                             GTK_SHADOW_IN);
 279         gtk_box_pack_start(GTK_BOX(vbox), scrolledwin, TRUE, TRUE, 0);
 280
 281         tree_store = gtk_tree_store_new(N_FOLDERSEL_COLUMNS,
 282                                         G_TYPE_STRING,
 283                                         G_TYPE_POINTER,
 284                                         GDK_TYPE_PIXBUF,
 285                                         GDK_TYPE_PIXBUF,
 286                                         GDK_TYPE_COLOR,
 287                                         G_TYPE_INT);
 288         gtk_tree_sortable_set_sort_func(GTK_TREE_SORTABLE(tree_store),
 289                                         FOLDERSEL_FOLDERNAME,
 290                                         foldersel_folder_name_compare,
 291                                         NULL, NULL);
 292
 293         treeview = gtk_tree_view_new_with_model(GTK_TREE_MODEL(tree_store));
 294         g_object_unref(G_OBJECT(tree_store));
 295         gtk_tree_view_set_headers_visible(GTK_TREE_VIEW(treeview), FALSE);
 296         gtk_tree_view_set_rules_hint(GTK_TREE_VIEW(treeview),
 297                                      prefs_common.use_stripes_everywhere);
 298         gtk_tree_view_set_enable_tree_lines(GTK_TREE_VIEW(treeview), FALSE);
 299         gtk_tree_view_set_search_column(GTK_TREE_VIEW(treeview),
 300                                         FOLDERSEL_FOLDERNAME);
 301         if (prefs_common.folder_search_wildcard)
 302                 gtk_tree_view_set_search_equal_func(GTK_TREE_VIEW(treeview),
 303                                 foldersel_search_name_func, NULL, NULL);
 304
 305         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
 306         gtk_tree_selection_set_mode(selection, GTK_SELECTION_BROWSE);
 307         gtk_tree_selection_set_select_function(selection, foldersel_selected,
 308                                                NULL, NULL);
 309
 310         g_signal_connect(G_OBJECT(treeview), "row-activated",
 311                          G_CALLBACK(foldersel_tree_activated), NULL);
 312         gtk_container_add(GTK_CONTAINER(scrolledwin), treeview);
 313
 314         column = gtk_tree_view_column_new();
 315         gtk_tree_view_column_set_spacing(column, 2);
 316         renderer = gtk_cell_renderer_pixbuf_new();
 317         gtk_tree_view_column_pack_start(column, renderer, FALSE);
 318         gtk_tree_view_column_set_attributes
 319                 (column, renderer,
 320                  "pixbuf", FOLDERSEL_PIXBUF,
 321                  "pixbuf-expander-open", FOLDERSEL_PIXBUF_OPEN,
 322                  "pixbuf-expander-closed", FOLDERSEL_PIXBUF,
 323                  NULL);
 324
 325         /* create text renderer */
 326         renderer = gtk_cell_renderer_text_new();
 327         gtk_cell_renderer_set_padding(renderer, 0, 0);
 328         gtk_tree_view_column_pack_start(column, renderer, TRUE);
 329         gtk_tree_view_column_set_attributes
 330                 (column, renderer,
 331                  "text", FOLDERSEL_FOLDERNAME,
 332                  "foreground-gdk", FOLDERSEL_FOREGROUND,
 333                  "weight", FOLDERSEL_BOLD,
 334                  NULL);
 335         g_object_set(G_OBJECT(renderer), "weight", PANGO_WEIGHT_BOLD, NULL);
 336         gtk_tree_view_column_set_sizing(column, GTK_TREE_VIEW_COLUMN_AUTOSIZE);
 337
 338         gtk_tree_view_append_column(GTK_TREE_VIEW(treeview), column);
 339
 340         statusbar = gtk_statusbar_new();
 341         statusbar_cid = gtk_statusbar_get_context_id(
 342                         GTK_STATUSBAR(statusbar), "Select Folder Dialog" );
 343         gtk_box_pack_start(GTK_BOX(vbox), statusbar, FALSE, FALSE, 0);
 344         g_signal_connect(G_OBJECT(statusbar), "activate",
 345                          G_CALLBACK(foldersel_entry_activated), NULL);
 346
 347         gtkut_stock_button_set_create(&confirm_area,
 348                                       &new_button,    GTK_STOCK_NEW,
 349                                       &cancel_button, GTK_STOCK_CANCEL,
 350                                       &ok_button,     GTK_STOCK_OK);
 351
 352         gtk_box_pack_end(GTK_BOX(vbox), confirm_area, FALSE, FALSE, 0);
 353         gtk_widget_grab_default(ok_button);
 354
 355         g_signal_connect(G_OBJECT(ok_button), "clicked",
 356                          G_CALLBACK(foldersel_ok), NULL);
 357         g_signal_connect(G_OBJECT(cancel_button), "clicked",
 358                          G_CALLBACK(foldersel_cancel), NULL);
 359         g_signal_connect(G_OBJECT(new_button), "clicked",
 360                          G_CALLBACK(foldersel_new_folder), NULL);
 361
 362         if (!geometry.min_height) {
 363                 geometry.min_width = 300;
 364                 geometry.min_height = 360;
 365         }
 366
 367         gtk_window_set_geometry_hints(GTK_WINDOW(window), NULL, &geometry,
 368                                       GDK_HINT_MIN_SIZE);
 369         gtk_widget_set_size_request(window, prefs_common.folderselwin_width,
 370                                     prefs_common.folderselwin_height);
 371
 372         gtk_widget_show_all(vbox);
 373 }
 374
 375 static void foldersel_init(void)
 376 {
 377         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_CLOSE, &folder_pixbuf);
 378         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_OPEN, &folderopen_pixbuf);
 379         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_NOSELECT_CLOSE, &foldernoselect_pixbuf);
 380         stock_pixbuf_gdk(STOCK_PIXMAP_DIR_NOSELECT_OPEN, &foldernoselectopen_pixbuf);
 381 }
 382
 383 void foldersel_reflect_prefs_pixmap_theme(void)
 384 {
 385         if (folder_pixbuf)
 386                 g_object_unref(folder_pixbuf);
 387         if (folderopen_pixbuf)
 388                 g_object_unref(folderopen_pixbuf);
 389         if (foldernoselect_pixbuf)
 390                 g_object_unref(foldernoselect_pixbuf);
 391         if (foldernoselectopen_pixbuf)
 392                 g_object_unref(foldernoselectopen_pixbuf);
 393         foldersel_init();
 394 }
 395
 396 static void foldersel_append_item(GtkTreeStore *store, FolderItem *item,
 397                                   GtkTreeIter *iter, GtkTreeIter *parent)
 398 {
 399         gchar *name, *tmpname;
 400         GdkPixbuf *pixbuf, *pixbuf_open;
 401         gboolean use_color;
 402         PangoWeight weight = PANGO_WEIGHT_NORMAL;
 403         GdkColor *foreground = NULL;
 404         static GdkColor color_noselect = {0, COLOR_DIM, COLOR_DIM, COLOR_DIM};
 405         static GdkColor color_new;
 406
 407         gtkut_convert_int_to_gdk_color(prefs_common.color[COL_NEW], &color_new);
 408
 409         name = folder_item_get_name(item);
 410
 411         if (folder_has_parent_of_type(item, F_QUEUE) && item->total_msgs > 0) {
 412                 tmpname = g_strdup_printf("%s (%d)", name, item->total_msgs);
 413         } else if (item->unread_msgs > 0) {
 414                 tmpname = g_strdup_printf("%s (%d)", name, item->unread_msgs);
 415         } else
 416                 tmpname = g_strdup(name);
 417
 418         g_free(name);
 419         name = tmpname;
 420
 421         pixbuf = item->no_select ? foldernoselect_pixbuf : folder_pixbuf;
 422         pixbuf_open =
 423                 item->no_select ? foldernoselectopen_pixbuf : folderopen_pixbuf;
 424
 425         if (folder_has_parent_of_type(item, F_DRAFT) ||
 426             folder_has_parent_of_type(item, F_OUTBOX) ||
 427             folder_has_parent_of_type(item, F_TRASH)) {
 428                 use_color = FALSE;
 429         } else if (folder_has_parent_of_type(item, F_QUEUE)) {
 430                 use_color = (item->total_msgs > 0);
 431                 if (item->total_msgs > 0)
 432                         weight = PANGO_WEIGHT_BOLD;
 433         } else {
 434                 if (item->unread_msgs > 0)
 435                         weight = PANGO_WEIGHT_BOLD;
 436                 use_color = (item->new_msgs > 0);
 437         }
 438
 439         if (item->no_select)
 440                 foreground = &color_noselect;
 441         else if (use_color)
 442                 foreground = &color_new;
 443
 444         /* insert this node */
 445         gtk_tree_store_append(store, iter, parent);
 446         gtk_tree_store_set(store, iter,
 447                            FOLDERSEL_FOLDERNAME, name,
 448                            FOLDERSEL_FOLDERITEM, item,
 449                            FOLDERSEL_PIXBUF, pixbuf,
 450                            FOLDERSEL_PIXBUF_OPEN, pixbuf_open,
 451                            FOLDERSEL_FOREGROUND, foreground,
 452                            FOLDERSEL_BOLD, weight,
 453                            -1);
 454
 455         g_free(name);
 456 }
 457
 458 static void foldersel_insert_gnode_in_store(GtkTreeStore *store, GNode *node,
 459                                             GtkTreeIter *parent)
 460 {
 461         FolderItem *item;
 462         GtkTreeIter child;
 463         GNode *iter;
 464
 465         cm_return_if_fail(node != NULL);
 466         cm_return_if_fail(node->data != NULL);
 467         cm_return_if_fail(store != NULL);
 468
 469         item = FOLDER_ITEM(node->data);
 470         foldersel_append_item(store, item, &child, parent);
 471
 472         /* insert its children (this node as parent) */
 473         for (iter = node->children; iter != NULL; iter = iter->next)
 474                 foldersel_insert_gnode_in_store(store, iter, &child);
 475 }
 476
 477 static void foldersel_set_tree(Folder *cur_folder, FolderSelectionType type)
 478 {
 479         Folder *folder;
 480         GList *list;
 481
 482         for (list = folder_get_list(); list != NULL; list = list->next) {
 483                 folder = FOLDER(list->data);
 484                 cm_return_if_fail(folder != NULL);
 485
 486                 if (type != FOLDER_SEL_ALL) {
 487                         if (FOLDER_TYPE(folder) == F_NEWS)
 488                                 continue;
 489                 }
 490
 491                 if (cur_folder && (cur_folder->klass != folder->klass
 492                     && g_strcmp0(cur_folder->name, folder->name) != 0))
 493                     continue;
 494
 495                 foldersel_insert_gnode_in_store(tree_store, folder->node, NULL);
 496         }
 497
 498         gtk_tree_sortable_set_sort_column_id(GTK_TREE_SORTABLE(tree_store),
 499                                              FOLDERSEL_FOLDERNAME,
 500                                              GTK_SORT_ASCENDING);
 501
 502         gtk_tree_view_expand_all(GTK_TREE_VIEW(treeview));
 503 }
 504
 505 #include "localfolder.h"
 506 static gboolean foldersel_selected(GtkTreeSelection *selection,
 507                                    GtkTreeModel *model, GtkTreePath *path,
 508                                    gboolean currently_selected, gpointer data)
 509 {
 510         GtkTreeIter iter;
 511         FolderItem *item = NULL;
 512
 513         if (currently_selected)
 514                 return TRUE;
 515
 516         if (!gtk_tree_model_get_iter(GTK_TREE_MODEL(model), &iter, path))
 517                 return TRUE;
 518
 519         gtk_tree_model_get(GTK_TREE_MODEL(tree_store), &iter,
 520                            FOLDERSEL_FOLDERITEM, &item, -1);
 521
 522         selected_item = item;
 523         if (selected_item && selected_item->path) {
 524                 gchar *id;
 525                 id = folder_item_get_identifier(selected_item);
 526                 gtk_statusbar_push(GTK_STATUSBAR(statusbar), statusbar_cid, id);
 527                 g_free(id);
 528         } else if (root_selectable && selected_item && selected_item->folder &&
 529                    (FOLDER_TYPE(selected_item->folder) == F_MH ||
 530                     FOLDER_TYPE(selected_item->folder) == F_MBOX ||
 531                     FOLDER_TYPE(selected_item->folder) == F_IMAP)) {
 532                 gchar *id = folder_get_identifier(selected_item->folder);
 533                 gtk_statusbar_push(GTK_STATUSBAR(statusbar), statusbar_cid,  id);
 534                 g_free(id);
 535         } else
 536                 gtk_statusbar_push(GTK_STATUSBAR(statusbar), statusbar_cid, "");
 537
 538         return TRUE;
 539 }
 540
 541 static void foldersel_ok(GtkButton *button, gpointer data)
 542 {
 543         finished = TRUE;
 544 }
 545
 546 static void foldersel_cancel(GtkButton *button, gpointer data)
 547 {
 548         cancelled = TRUE;
 549         finished = TRUE;
 550 }
 551
 552 static void foldersel_new_folder(GtkButton *button, gpointer data)
 553 {
 554         FolderItem *new_item;
 555         gchar *new_folder;
 556         gchar *disp_name;
 557         gchar *p;
 558         GtkTreeIter selected, new_child;
 559         GtkTreePath *selected_p, *new_child_p;
 560         GtkTreeStore *store;
 561         GtkTreeModel *model;
 562         GtkTreeSelection *selection;
 563
 564         if (!selected_item || FOLDER_TYPE(selected_item->folder) == F_NEWS)
 565                 return;
 566
 567         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(treeview));
 568         if (!gtk_tree_selection_get_selected(selection, &model, &selected))
 569                 return;
 570         store = GTK_TREE_STORE(model);
 571
 572         new_folder = input_dialog(_("New folder"),
 573                                   _("Input the name of new folder:"),
 574                                   _("NewFolder"));
 575         if (!new_folder) return;
 576         AUTORELEASE_STR(new_folder, {g_free(new_folder); return;});
 577
 578         p = strchr(new_folder, G_DIR_SEPARATOR);
 579         if ((p && FOLDER_TYPE(selected_item->folder) != F_IMAP) ||
 580             (p && FOLDER_TYPE(selected_item->folder) == F_IMAP &&
 581              *(p + 1) != '\0')) {
 582                 alertpanel_error(_("'%c' can't be included in folder name."),
 583                                 G_DIR_SEPARATOR);
 584                 return;
 585         }
 586
 587         if (FOLDER_TYPE(selected_item->folder) != F_IMAP &&
 588                         FOLDER_TYPE(selected_item->folder) != F_NEWS &&
 589                         !folder_local_name_ok(new_folder))
 590                 return;
 591
 592         disp_name = trim_string(new_folder, 32);
 593         AUTORELEASE_STR(disp_name, {g_free(disp_name); return;});
 594
 595         /* find whether the directory already exists */
 596         if (folder_find_child_item_by_name(selected_item, new_folder)) {
 597                 alertpanel_error(_("The folder '%s' already exists."),
 598                                  disp_name);
 599                 return;
 600         }
 601
 602         new_item = folder_create_folder(selected_item, new_folder);
 603         if (!new_item) {
 604                 alertpanel_error(_("Can't create the folder '%s'."), disp_name);
 605                 return;
 606         }
 607
 608         /* add new child */
 609         foldersel_append_item(store, new_item, &new_child, &selected);
 610
 611         selected_p = gtk_tree_model_get_path(GTK_TREE_MODEL(store), &selected);
 612         new_child_p = gtk_tree_model_get_path(GTK_TREE_MODEL(store),
 613                                               &new_child);
 614
 615         gtk_tree_view_expand_row(GTK_TREE_VIEW(treeview), selected_p, FALSE);
 616         gtk_tree_selection_select_iter(selection, &new_child);
 617         gtk_tree_view_scroll_to_cell(GTK_TREE_VIEW(treeview), new_child_p,
 618                                      NULL, TRUE, 0.5, 0.0);
 619         gtk_tree_path_free(new_child_p);
 620         gtk_tree_path_free(selected_p);
 621
 622         folder_write_list();
 623 }
 624
 625 static void foldersel_entry_activated(GtkEntry *entry, gpointer data)
 626 {
 627         gtk_button_clicked(GTK_BUTTON(ok_button));
 628 }
 629
 630 static void foldersel_tree_activated(GtkTreeView *treeview, GtkTreePath *path,
 631                                      GtkTreeViewColumn *column, gpointer data)
 632 {
 633         gtk_button_clicked(GTK_BUTTON(ok_button));
 634 }
 635
 636 static gint delete_event(GtkWidget *widget, GdkEventAny *event, gpointer data)
 637 {
 638         foldersel_cancel(NULL, NULL);
 639         return TRUE;
 640 }
 641
 642 static gboolean key_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
 643 {
 644         if (!event)
 645                 return FALSE;
 646
 647         if (event->keyval == GDK_KEY_Escape) {
 648                 foldersel_cancel(NULL, NULL);
 649                 return TRUE;
 650         }
 651
 652         GtkTreePath *path = NULL;
 653         gtk_tree_view_get_cursor(GTK_TREE_VIEW(treeview), &path, NULL);
 654         if (path == NULL)
 655                 return FALSE;
 656
 657         switch (event->keyval) {
 658                 case GDK_KEY_Left:
 659                         if (gtk_tree_view_row_expanded(GTK_TREE_VIEW(treeview), path)) {
 660                                 gtk_tree_view_collapse_row(GTK_TREE_VIEW(treeview), path);
 661                         } else {
 662                                 gtk_tree_path_up(path);
 663                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(treeview), path, NULL, FALSE);
 664                         }
 665                         return TRUE;
 666                         break;
 667                 case GDK_KEY_Right:
 668                         if (!gtk_tree_view_row_expanded(GTK_TREE_VIEW(treeview), path)) {
 669                                 gtk_tree_view_expand_row(GTK_TREE_VIEW(treeview), path, FALSE);
 670                         } else {
 671                                 gtk_tree_path_down(path);
 672                                 gtk_tree_view_set_cursor(GTK_TREE_VIEW(treeview), path, NULL, FALSE);
 673                         }
 674                         return TRUE;
 675                         break;
 676         }
 677
 678         gtk_tree_path_free(path);
 679
 680         return FALSE;
 681 }
 682
 683 static gint foldersel_folder_name_compare(GtkTreeModel *model, GtkTreeIter *a,
 684                                           GtkTreeIter *b, gpointer context)
 685 {
 686         gchar *str_a = NULL, *str_b = NULL;
 687         gint val = 0;
 688         FolderItem *item_a = NULL, *item_b = NULL;
 689         GtkTreeIter parent;
 690
 691         gtk_tree_model_get(model, a, FOLDERSEL_FOLDERITEM, &item_a, -1);
 692         gtk_tree_model_get(model, b, FOLDERSEL_FOLDERITEM, &item_b, -1);
 693
 694         /* no sort for root folder */
 695         if (!gtk_tree_model_iter_parent(GTK_TREE_MODEL(model), &parent, a))
 696                 return 0;
 697
 698         /* if both a and b are special folders, sort them according to
 699          * their types (which is in-order). Note that this assumes that
 700          * there are no multiple folders of a special type. */
 701         if (item_a->stype != F_NORMAL && item_b->stype != F_NORMAL)
 702                 return item_a->stype - item_b->stype;
 703
 704         /* if b is normal folder, and a is not, b is smaller (ends up
 705          * lower in the list) */
 706         if (item_a->stype != F_NORMAL && item_b->stype == F_NORMAL)
 707                 return item_b->stype - item_a->stype;
 708
 709         /* if b is special folder, and a is not, b is larger (ends up
 710          * higher in the list) */
 711         if (item_a->stype == F_NORMAL && item_b->stype != F_NORMAL)
 712                 return item_b->stype - item_a->stype;
 713
 714         /* XXX g_utf8_collate_key() comparisons may speed things
 715          * up when having large lists of folders */
 716         gtk_tree_model_get(model, a, FOLDERSEL_FOLDERNAME, &str_a, -1);
 717         gtk_tree_model_get(model, b, FOLDERSEL_FOLDERNAME, &str_b, -1);
 718
 719         /* otherwise just compare the folder names */
 720         val = g_utf8_collate(str_a, str_b);
 721
 722         g_free(str_a);
 723         g_free(str_b);
 724
 725         return val;
 726 }
 727
 728 static gboolean tree_view_folder_item_func(GtkTreeModel *model,
 729                                            GtkTreePath *path,
 730                                            GtkTreeIter *iter,
 731                                            FolderItemSearch *data)
 732 {
 733         FolderItem *item = NULL;
 734
 735         gtk_tree_model_get(model, iter, FOLDERSEL_FOLDERITEM, &item, -1);
 736
 737         if (data->item == item) {
 738                 data->path = gtk_tree_path_copy(path);
 739                 data->iter = *iter;
 740                 return TRUE;
 741         }
 742
 743         return FALSE;
 744 }