git.maemo.org Git - modest/blob - src/widgets/modest-folder-view.c

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <glib/gi18n.h>
  31 #include <string.h>
  32
  33 #include <tny-gtk-account-list-model.h>
  34 #include <tny-gtk-folder-store-tree-model.h>
  35 #include <tny-gtk-header-list-model.h>
  36 #include <tny-folder.h>
  37 #include <tny-account-store.h>
  38 #include <tny-account.h>
  39 #include <tny-folder.h>
  40 #include <tny-camel-folder.h>
  41 #include <tny-simple-list.h>
  42 #include <modest-tny-folder.h>
  43 #include <modest-marshal.h>
  44 #include <modest-icon-names.h>
  45 #include <modest-tny-account-store.h>
  46 #include <modest-text-utils.h>
  47 #include <modest-runtime.h>
  48 #include "modest-folder-view.h"
  49
  50 /* 'private'/'protected' functions */
  51 static void modest_folder_view_class_init  (ModestFolderViewClass *klass);
  52 static void modest_folder_view_init        (ModestFolderView *obj);
  53 static void modest_folder_view_finalize    (GObject *obj);
  54
  55 static gboolean     update_model           (ModestFolderView *self,
  56                                             ModestTnyAccountStore *account_store);
  57
  58 static gboolean     update_model_empty     (ModestFolderView *self);
  59
  60 static void         on_selection_changed   (GtkTreeSelection *sel, gpointer data);
  61
  62 static gint         cmp_rows               (GtkTreeModel *tree_model,
  63                                             GtkTreeIter *iter1,
  64                                             GtkTreeIter *iter2,
  65                                             gpointer user_data);
  66
  67 /* DnD functions */
  68 static void         drag_data_get_cb       (GtkWidget *widget,
  69                                             GdkDragContext *context,
  70                                             GtkSelectionData *selection_data,
  71                                             guint info,
  72                                             guint time,
  73                                             gpointer data);
  74
  75 static void         drag_data_received_cb  (GtkWidget *widget,
  76                                             GdkDragContext *context,
  77                                             gint x,
  78                                             gint y,
  79                                             GtkSelectionData *selection_data,
  80                                             guint info,
  81                                             guint time,
  82                                             gpointer data);
  83
  84 static gboolean     drag_motion_cb         (GtkWidget      *widget,
  85                                             GdkDragContext *context,
  86                                             gint            x,
  87                                             gint            y,
  88                                             guint           time,
  89                                             gpointer        user_data);
  90
  91 static gint         expand_row_timeout     (gpointer data);
  92
  93 static void         setup_drag_and_drop    (GtkTreeView *self);
  94
  95
  96 static const GtkTargetEntry drag_types[] =
  97 {
  98         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 2 }
  99 };
 100
 101
 102 enum {
 103         FOLDER_SELECTION_CHANGED_SIGNAL,
 104         FOLDER_MOVED_SIGNAL,
 105         LAST_SIGNAL
 106 };
 107
 108 typedef struct _ModestFolderViewPrivate ModestFolderViewPrivate;
 109 struct _ModestFolderViewPrivate {
 110         TnyAccountStore     *account_store;
 111         TnyFolder           *cur_folder;
 112         GtkTreeRowReference *cur_row;
 113
 114         gulong               sig1, sig2;
 115         GMutex              *lock;
 116         GtkTreeSelection    *cur_selection;
 117         TnyFolderStoreQuery *query;
 118         guint                timer_expander;
 119 };
 120 #define MODEST_FOLDER_VIEW_GET_PRIVATE(o)                               \
 121         (G_TYPE_INSTANCE_GET_PRIVATE((o),                               \
 122                                      MODEST_TYPE_FOLDER_VIEW,           \
 123                                      ModestFolderViewPrivate))
 124 /* globals */
 125 static GObjectClass *parent_class = NULL;
 126
 127 static guint signals[LAST_SIGNAL] = {0};
 128
 129 GType
 130 modest_folder_view_get_type (void)
 131 {
 132         static GType my_type = 0;
 133         if (!my_type) {
 134                 static const GTypeInfo my_info = {
 135                         sizeof(ModestFolderViewClass),
 136                         NULL,           /* base init */
 137                         NULL,           /* base finalize */
 138                         (GClassInitFunc) modest_folder_view_class_init,
 139                         NULL,           /* class finalize */
 140                         NULL,           /* class data */
 141                         sizeof(ModestFolderView),
 142                         1,              /* n_preallocs */
 143                         (GInstanceInitFunc) modest_folder_view_init,
 144                         NULL
 145                 };
 146
 147                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
 148                                                   "ModestFolderView",
 149                                                   &my_info, 0);
 150         }
 151         return my_type;
 152 }
 153
 154 static void
 155 modest_folder_view_class_init (ModestFolderViewClass *klass)
 156 {
 157         GObjectClass *gobject_class;
 158         gobject_class = (GObjectClass*) klass;
 159
 160         parent_class            = g_type_class_peek_parent (klass);
 161         gobject_class->finalize = modest_folder_view_finalize;
 162
 163         klass->update_model = modest_folder_view_update_model;
 164
 165         g_type_class_add_private (gobject_class,
 166                                   sizeof(ModestFolderViewPrivate));
 167
 168         signals[FOLDER_SELECTION_CHANGED_SIGNAL] =
 169                 g_signal_new ("folder_selection_changed",
 170                               G_TYPE_FROM_CLASS (gobject_class),
 171                               G_SIGNAL_RUN_FIRST,
 172                               G_STRUCT_OFFSET (ModestFolderViewClass,
 173                                                folder_selection_changed),
 174                               NULL, NULL,
 175                               modest_marshal_VOID__POINTER_BOOLEAN,
 176                               G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_BOOLEAN);
 177
 178         /**
 179          * ModestFolderView::folder-moved
 180          * @self: the #MailOperation that emits the signal
 181          * @folder: the #TnyFolder that is going to be moved
 182          * @parent: then #TnyFolderStore that is going to be the new parent
 183          * @done: indicates if the folder move was correctly completed or not
 184          * @user_data: user data set when the signal handler was connected
 185          *
 186          * Emitted when a the user wants to move a folder through a
 187          * drag and drop action
 188          */
 189         signals[FOLDER_MOVED_SIGNAL] =
 190                 g_signal_new ("folder_moved",
 191                               G_TYPE_FROM_CLASS (gobject_class),
 192                               G_SIGNAL_RUN_FIRST,
 193                               G_STRUCT_OFFSET (ModestFolderViewClass, folder_moved),
 194                               NULL, NULL,
 195                               modest_marshal_VOID__POINTER_POINTER_POINTER,
 196                               G_TYPE_NONE, 3, G_TYPE_POINTER, G_TYPE_POINTER, G_TYPE_POINTER);
 197 }
 198
 199
 200
 201 static void
 202 text_cell_data  (GtkTreeViewColumn *column,  GtkCellRenderer *renderer,
 203                  GtkTreeModel *tree_model,  GtkTreeIter *iter,  gpointer data)
 204 {
 205         GObject *rendobj;
 206         gchar *fname;
 207         gint unread;
 208         TnyFolderType type;
 209         TnyFolder *folder;
 210
 211         g_return_if_fail (column);
 212         g_return_if_fail (tree_model);
 213
 214         gtk_tree_model_get (tree_model, iter,
 215                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &fname,
 216                             TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN, &unread,
 217                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 218                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder,
 219                             -1);
 220         rendobj = G_OBJECT(renderer);
 221
 222         if (!fname)
 223                 return;
 224
 225         if (folder && type != TNY_FOLDER_TYPE_ROOT) { /* FIXME: tnymail bug? crashes with root folders */
 226                 if (modest_tny_folder_is_local_folder (folder)) {
 227                         TnyFolderType type;
 228                         type = modest_tny_folder_get_local_folder_type (folder);
 229                         if (type != TNY_FOLDER_TYPE_UNKNOWN) {
 230                                 g_free (fname);
 231                                 fname = g_strdup(modest_local_folder_info_get_type_display_name (type));
 232                         }
 233                 }
 234         } else if (folder && type == TNY_FOLDER_TYPE_ROOT) {
 235                 if (strcmp (fname, MODEST_LOCAL_FOLDERS_ACCOUNT_NAME) == 0) {/* FIXME: hack */
 236                         g_free (fname);
 237                         fname = g_strdup (MODEST_LOCAL_FOLDERS_DISPLAY_NAME);
 238                 }
 239         }
 240
 241         if (unread > 0) {
 242                 gchar *folder_title = g_strdup_printf ("%s (%d)", fname, unread);
 243                 g_object_set (rendobj,"text", folder_title,  "weight", 800, NULL);
 244                 g_free (folder_title);
 245         } else
 246                 g_object_set (rendobj,"text", fname, "weight", 400, NULL);
 247
 248         g_free (fname);
 249 }
 250
 251
 252 static GdkPixbuf*
 253 get_cached_icon (const gchar *name)
 254 {
 255         GError *err = NULL;
 256         gpointer pixbuf;
 257         gpointer orig_key;
 258         static GHashTable *icon_cache = NULL;
 259
 260         g_return_val_if_fail (name, NULL);
 261
 262         if (G_UNLIKELY(!icon_cache))
 263                 icon_cache = modest_cache_mgr_get_cache (modest_runtime_get_cache_mgr(),
 264                                                          MODEST_CACHE_MGR_CACHE_TYPE_PIXBUF);
 265
 266         if (!icon_cache || !g_hash_table_lookup_extended (icon_cache, name, &orig_key, &pixbuf)) {
 267                 pixbuf = (gpointer)gdk_pixbuf_new_from_file (name, &err);
 268                 if (!pixbuf) {
 269                         g_printerr ("modest: error in icon factory while loading '%s': %s\n",
 270                                     name, err->message);
 271                         g_error_free (err);
 272                 }
 273                 /* if we cannot find it, we still insert (if we have a cache), so we get the error
 274                  * only once */
 275                 if (icon_cache)
 276                         g_hash_table_insert (icon_cache, g_strdup(name),(gpointer)pixbuf);
 277         }
 278         return GDK_PIXBUF(pixbuf);
 279 }
 280
 281
 282 static void
 283 icon_cell_data  (GtkTreeViewColumn *column,  GtkCellRenderer *renderer,
 284                  GtkTreeModel *tree_model,  GtkTreeIter *iter, gpointer data)
 285 {
 286         GObject *rendobj;
 287         GdkPixbuf *pixbuf;
 288         TnyFolderType type;
 289         gchar *fname = NULL;
 290         gint unread;
 291
 292         rendobj = G_OBJECT(renderer);
 293         gtk_tree_model_get (tree_model, iter,
 294                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 295                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &fname,
 296                             TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN, &unread, -1);
 297         rendobj = G_OBJECT(renderer);
 298
 299         if (type == TNY_FOLDER_TYPE_NORMAL || type == TNY_FOLDER_TYPE_UNKNOWN) {
 300                 type = modest_tny_folder_guess_folder_type_from_name (fname);
 301         }
 302         g_free (fname);
 303
 304         switch (type) {
 305         case TNY_FOLDER_TYPE_ROOT:
 306                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_ACCOUNT);
 307                 break;
 308         case TNY_FOLDER_TYPE_INBOX:
 309                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_INBOX);
 310                 break;
 311         case TNY_FOLDER_TYPE_OUTBOX:
 312                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_OUTBOX);
 313                 break;
 314         case TNY_FOLDER_TYPE_JUNK:
 315                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_JUNK);
 316                 break;
 317         case TNY_FOLDER_TYPE_SENT:
 318                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_SENT);
 319                 break;
 320         case TNY_FOLDER_TYPE_TRASH:
 321                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_TRASH);
 322                 break;
 323         case TNY_FOLDER_TYPE_DRAFTS:
 324                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_DRAFTS);
 325                 break;
 326         case TNY_FOLDER_TYPE_NOTES:
 327                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_NOTES);
 328                 break;
 329         case TNY_FOLDER_TYPE_CALENDAR:
 330                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_CALENDAR);
 331                 break;
 332         case TNY_FOLDER_TYPE_CONTACTS:
 333                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_CONTACTS);
 334                 break;
 335         case TNY_FOLDER_TYPE_NORMAL:
 336         default:
 337                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_NORMAL);
 338                 break;
 339         }
 340         g_object_set (rendobj, "pixbuf", pixbuf, NULL);
 341 }
 342
 343 static void
 344 modest_folder_view_init (ModestFolderView *obj)
 345 {
 346         ModestFolderViewPrivate *priv;
 347         GtkTreeViewColumn *column;
 348         GtkCellRenderer *renderer;
 349         GtkTreeSelection *sel;
 350
 351         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(obj);
 352
 353         priv->timer_expander = 0;
 354         priv->account_store  = NULL;
 355         priv->cur_folder     = NULL;
 356         priv->cur_row        = NULL;
 357         priv->query          = NULL;
 358         priv->lock           = g_mutex_new ();
 359
 360         column = gtk_tree_view_column_new ();
 361         gtk_tree_view_append_column (GTK_TREE_VIEW(obj),column);
 362
 363         renderer = gtk_cell_renderer_pixbuf_new();
 364         gtk_tree_view_column_pack_start (column, renderer, FALSE);
 365         gtk_tree_view_column_set_cell_data_func(column, renderer,
 366                                                 icon_cell_data, NULL, NULL);
 367
 368         renderer = gtk_cell_renderer_text_new();
 369         gtk_tree_view_column_pack_start (column, renderer, FALSE);
 370         gtk_tree_view_column_set_cell_data_func(column, renderer,
 371                                                 text_cell_data, NULL, NULL);
 372
 373         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(obj));
 374         gtk_tree_selection_set_mode (sel, GTK_SELECTION_SINGLE);
 375
 376         gtk_tree_view_column_set_spacing (column, 2);
 377         gtk_tree_view_column_set_resizable (column, TRUE);
 378         gtk_tree_view_column_set_fixed_width (column, TRUE);
 379         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(obj), FALSE);
 380         gtk_tree_view_set_enable_search     (GTK_TREE_VIEW(obj), FALSE);
 381
 382         setup_drag_and_drop (GTK_TREE_VIEW(obj));
 383 }
 384
 385 static void
 386 modest_folder_view_finalize (GObject *obj)
 387 {
 388         ModestFolderViewPrivate *priv;
 389         GtkTreeSelection    *sel;
 390
 391         g_return_if_fail (obj);
 392
 393         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(obj);
 394
 395         if (priv->timer_expander != 0) {
 396                 g_source_remove (priv->timer_expander);
 397                 priv->timer_expander = 0;
 398         }
 399
 400         if (priv->account_store) {
 401                 g_signal_handler_disconnect (G_OBJECT(priv->account_store),
 402                                              priv->sig1);
 403                 g_object_unref (G_OBJECT(priv->account_store));
 404                 priv->account_store = NULL;
 405         }
 406
 407         if (priv->lock) {
 408                 g_mutex_free (priv->lock);
 409                 priv->lock = NULL;
 410         }
 411
 412         if (priv->query) {
 413                 g_object_unref (G_OBJECT (priv->query));
 414                 priv->query = NULL;
 415         }
 416
 417         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(obj));
 418         if (sel)
 419                 g_signal_handler_disconnect (G_OBJECT(sel), priv->sig2);
 420
 421         G_OBJECT_CLASS(parent_class)->finalize (obj);
 422 }
 423
 424
 425 static void
 426 on_account_update (TnyAccountStore *account_store, const gchar *account,
 427                    gpointer user_data)
 428 {
 429         if (!update_model (MODEST_FOLDER_VIEW(user_data),
 430                            MODEST_TNY_ACCOUNT_STORE(account_store)))
 431                 g_printerr ("modest: failed to update model for changes in '%s'",
 432                             account);
 433 }
 434
 435 void
 436 modest_folder_view_set_title (ModestFolderView *self, const gchar *title)
 437 {
 438         GtkTreeViewColumn *col;
 439
 440         g_return_if_fail (self);
 441
 442         col = gtk_tree_view_get_column (GTK_TREE_VIEW(self), 0);
 443         if (!col) {
 444                 g_printerr ("modest: failed get column for title\n");
 445                 return;
 446         }
 447
 448         gtk_tree_view_column_set_title (col, title);
 449         gtk_tree_view_set_headers_visible (GTK_TREE_VIEW(self),
 450                                            title != NULL);
 451 }
 452
 453 GtkWidget*
 454 modest_folder_view_new (ModestTnyAccountStore *account_store,
 455                         TnyFolderStoreQuery *query)
 456 {
 457         GObject *self;
 458         ModestFolderViewPrivate *priv;
 459         GtkTreeSelection *sel;
 460
 461         g_return_val_if_fail (account_store, NULL);
 462
 463         self = G_OBJECT(g_object_new(MODEST_TYPE_FOLDER_VIEW, NULL));
 464         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 465
 466         priv->account_store = g_object_ref (G_OBJECT (account_store));
 467         if (query)
 468                 priv->query = g_object_ref (G_OBJECT (query));
 469
 470         if (!update_model (MODEST_FOLDER_VIEW(self),
 471                            MODEST_TNY_ACCOUNT_STORE(account_store)))
 472                 g_printerr ("modest: failed to update model\n");
 473
 474         priv->sig1 = g_signal_connect (G_OBJECT(account_store), "account_update",
 475                                        G_CALLBACK (on_account_update), self);
 476
 477         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 478         priv->sig2 = g_signal_connect (sel, "changed",
 479                                        G_CALLBACK(on_selection_changed), self);
 480         return GTK_WIDGET(self);
 481 }
 482
 483
 484 static gboolean
 485 update_model_empty (ModestFolderView *self)
 486 {
 487         ModestFolderViewPrivate *priv;
 488
 489         g_return_val_if_fail (self, FALSE);
 490         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 491
 492         g_signal_emit (G_OBJECT(self), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
 493                        NULL, TRUE);
 494         return TRUE;
 495 }
 496
 497
 498 /* this feels dirty; any other way to expand all the root items? */
 499 static void
 500 expand_root_items (ModestFolderView *self)
 501 {
 502         GtkTreePath *path;
 503         path = gtk_tree_path_new_first ();
 504
 505         /* all folders should have child items, so.. */
 506         while (gtk_tree_view_expand_row (GTK_TREE_VIEW(self), path, FALSE))
 507                 gtk_tree_path_next (path);
 508
 509         gtk_tree_path_free (path);
 510 }
 511
 512 static gboolean
 513 update_model (ModestFolderView *self, ModestTnyAccountStore *account_store)
 514 {
 515         ModestFolderViewPrivate *priv;
 516
 517         TnyList          *account_list;
 518         GtkTreeModel     *model, *sortable;
 519
 520         g_return_val_if_fail (account_store, FALSE);
 521
 522         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 523
 524         /* Notify that there is no folder selected */
 525         update_model_empty (self);
 526
 527         model        = tny_gtk_folder_store_tree_model_new (TRUE, NULL);
 528         account_list = TNY_LIST(model);
 529
 530         tny_account_store_get_accounts (TNY_ACCOUNT_STORE(account_store),
 531                                         account_list,
 532                                         TNY_ACCOUNT_STORE_STORE_ACCOUNTS);
 533         if (account_list) {
 534                 sortable = gtk_tree_model_sort_new_with_model (model);
 535                 gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 536                                                       TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 537                                                       GTK_SORT_ASCENDING);
 538                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE (sortable),
 539                                                  TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 540                                                  cmp_rows, NULL, NULL);
 541
 542                 /* Set new model */
 543                 gtk_tree_view_set_model (GTK_TREE_VIEW(self), sortable);
 544                 expand_root_items (self); /* expand all account folders */
 545         }
 546
 547         g_object_unref (model);
 548         return TRUE;
 549 }
 550
 551
 552 static void
 553 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
 554 {
 555         GtkTreeModel            *model_sort, *model;
 556         TnyFolder               *folder = NULL;
 557         GtkTreeIter             iter, iter_sort;
 558         GtkTreePath            *path;
 559         ModestFolderView        *tree_view;
 560         ModestFolderViewPrivate *priv;
 561         gint                    type;
 562
 563         g_return_if_fail (sel);
 564         g_return_if_fail (user_data);
 565
 566         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(user_data);
 567         priv->cur_selection = sel;
 568
 569         /* folder was _un_selected if true */
 570         if (!gtk_tree_selection_get_selected (sel, &model_sort, &iter_sort)) {
 571                 priv->cur_folder = NULL; /* FIXME: need this? */
 572                 priv->cur_row = NULL; /* FIXME: need this? */
 573                return;
 574         }
 575
 576         model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
 577         gtk_tree_model_sort_convert_iter_to_child_iter (GTK_TREE_MODEL_SORT (model_sort),
 578                                                         &iter,
 579                                                         &iter_sort);
 580
 581         tree_view = MODEST_FOLDER_VIEW (user_data);
 582
 583         gtk_tree_model_get (model, &iter,
 584                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 585                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder,
 586                             -1);
 587
 588         if (type == TNY_FOLDER_TYPE_ROOT)
 589                 return;
 590
 591         /* emit 2 signals: one for the unselection of the old one,
 592          * and one for the selection of the new on */
 593         g_signal_emit (G_OBJECT(tree_view), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
 594                        priv->cur_folder, FALSE);
 595         g_signal_emit (G_OBJECT(tree_view), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
 596                        folder, TRUE);
 597         if (priv->cur_folder) {
 598                 tny_folder_sync (priv->cur_folder, TRUE, NULL); /* FIXME */
 599                 gtk_tree_row_reference_free (priv->cur_row);
 600         }
 601
 602         priv->cur_folder = folder;
 603         path = gtk_tree_model_get_path (model_sort, &iter_sort);
 604         priv->cur_row = gtk_tree_row_reference_new (model_sort, path);
 605         gtk_tree_path_free (path);
 606 }
 607
 608 gboolean
 609 modest_folder_view_update_model (ModestFolderView *self, TnyAccountStore *account_store)
 610 {
 611         g_return_val_if_fail (MODEST_IS_FOLDER_VIEW (self), FALSE);
 612
 613         g_signal_emit (G_OBJECT(self), signals[FOLDER_SELECTION_CHANGED_SIGNAL],
 614                        0, NULL, TRUE);
 615
 616         return update_model (self, MODEST_TNY_ACCOUNT_STORE(account_store)); /* ugly */
 617 }
 618
 619 TnyFolder *
 620 modest_folder_view_get_selected (ModestFolderView *self)
 621 {
 622         ModestFolderViewPrivate *priv;
 623
 624         g_return_val_if_fail (self, NULL);
 625
 626         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 627         if (priv->cur_folder)
 628                 g_object_ref (priv->cur_folder);
 629
 630         return priv->cur_folder;
 631 }
 632
 633 static gboolean
 634 get_model_iter (ModestFolderView *self,
 635                 GtkTreeModel **model,
 636                 GtkTreeIter *iter)
 637 {
 638         GtkTreeModel *model_sort;
 639         GtkTreeIter iter_sort;
 640         GtkTreePath *path;
 641         ModestFolderViewPrivate *priv;
 642
 643         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 644
 645         if (!priv->cur_folder)
 646                 return FALSE;
 647
 648         if (!gtk_tree_row_reference_valid (priv->cur_row))
 649                 return FALSE;
 650
 651         model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 652         *model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
 653
 654         /* Get path to retrieve iter */
 655         path = gtk_tree_row_reference_get_path (priv->cur_row);
 656         if (!gtk_tree_model_get_iter (model_sort, &iter_sort, path))
 657                 return FALSE;
 658
 659         gtk_tree_model_sort_convert_iter_to_child_iter (GTK_TREE_MODEL_SORT (model_sort),
 660                                                         iter,
 661                                                         &iter_sort);
 662         return TRUE;
 663 }
 664
 665 gboolean
 666 modest_folder_view_rename (ModestFolderView *self)
 667 {
 668         GtkTreeModel *model;
 669         GtkTreeIter iter;
 670         ModestFolderViewPrivate *priv;
 671         gchar *old_name;
 672
 673         g_return_val_if_fail (MODEST_IS_FOLDER_VIEW (self), FALSE);
 674
 675         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 676
 677         if (!get_model_iter (self, &model, &iter))
 678                 return FALSE;
 679
 680         /* Remove old name */
 681         gtk_tree_model_get (model, &iter,
 682                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 683                             &old_name, -1);
 684         g_free (old_name);
 685
 686         /* Set new name */
 687         gtk_tree_store_set (GTK_TREE_STORE (model), &iter,
 688                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 689                             tny_folder_get_name (priv->cur_folder), -1);
 690
 691         /* Invalidate selection */
 692         g_signal_emit (G_OBJECT(self), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
 693                        priv->cur_folder, TRUE);
 694
 695         return TRUE;
 696 }
 697
 698 gboolean
 699 modest_folder_view_add_subfolder (ModestFolderView *self, TnyFolder *folder)
 700 {
 701         GtkTreeModel *model;
 702         GtkTreeIter iter, child;
 703
 704         g_return_val_if_fail (MODEST_IS_FOLDER_VIEW (self), FALSE);
 705
 706         if (!get_model_iter (self, &model, &iter))
 707                 return FALSE;
 708
 709         /* Append a new child to the folder */
 710         gtk_tree_store_append (GTK_TREE_STORE (model), &child, &iter);
 711         gtk_tree_store_set (GTK_TREE_STORE (model), &child,
 712                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 713                             tny_folder_get_name (TNY_FOLDER (folder)),
 714                             TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN,
 715                             tny_folder_get_unread_count (TNY_FOLDER (folder)),
 716                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN,
 717                             tny_folder_get_folder_type (TNY_FOLDER (folder)),
 718                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN,
 719                             folder, -1);
 720
 721         return TRUE;
 722 }
 723
 724 static gint
 725 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
 726           gpointer user_data)
 727 {
 728         gint cmp;
 729         gchar         *name1, *name2;
 730         TnyFolderType type;
 731         TnyFolder     *folder1, *folder2;
 732
 733         gtk_tree_model_get (tree_model, iter1,
 734                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &name1,
 735                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 736                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder1,
 737                             -1);
 738         gtk_tree_model_get (tree_model, iter2,
 739                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &name2,
 740                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder2,
 741                             -1);
 742
 743         /* local_folders should be the last one */
 744         if (type == TNY_FOLDER_TYPE_ROOT) {
 745                 /* the account name is also the name of the root folder
 746                  * in case of local folders */
 747                 if (name1 && strcmp (name1, MODEST_LOCAL_FOLDERS_ACCOUNT_NAME) == 0)
 748                         cmp = +1;
 749                 else if (name2 && strcmp (name2, MODEST_LOCAL_FOLDERS_ACCOUNT_NAME) == 0)
 750                         cmp = -1;
 751                 else
 752                         cmp = modest_text_utils_utf8_strcmp (name1, name2, TRUE);
 753         } else
 754                 cmp = modest_text_utils_utf8_strcmp (name1, name2, TRUE);
 755
 756         g_free (name1);
 757         g_free (name2);
 758
 759         return cmp;
 760 }
 761
 762 /*****************************************************************************/
 763 /*                        DRAG and DROP stuff                                */
 764 /*****************************************************************************/
 765 static void
 766 drag_data_get_cb (GtkWidget *widget,
 767                   GdkDragContext *context,
 768                   GtkSelectionData *selection_data,
 769                   guint info,
 770                   guint time,
 771                   gpointer data)
 772 {
 773         GtkTreeSelection *selection;
 774         GtkTreeModel *model_sort, *model;
 775         GtkTreeIter iter;
 776         GtkTreePath *source_row_sort;
 777         GtkTreePath *source_row;
 778
 779         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (widget));
 780         gtk_tree_selection_get_selected (selection, &model_sort, &iter);
 781         source_row_sort = gtk_tree_model_get_path (model_sort, &iter);
 782
 783         model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
 784         source_row = gtk_tree_model_sort_convert_path_to_child_path (GTK_TREE_MODEL_SORT (model_sort),
 785                                                                      source_row_sort);
 786
 787         gtk_tree_set_row_drag_data (selection_data,
 788                                     model,
 789                                     source_row);
 790
 791         gtk_tree_path_free (source_row_sort);
 792         gtk_tree_path_free (source_row);
 793 }
 794
 795 static void
 796 drag_data_received_cb (GtkWidget *widget,
 797                        GdkDragContext *context,
 798                        gint x,
 799                        gint y,
 800                        GtkSelectionData *selection_data,
 801                        guint info,
 802                        guint time,
 803                        gpointer data)
 804 {
 805         GtkTreeModel *model_sort, *model;
 806         GtkTreeRowReference *source_row_reference;
 807         GtkTreePath *source_row, *dest_row, *child_dest_row;
 808         GtkTreeViewDropPosition pos;
 809         GtkTreeIter parent_iter, iter;
 810         TnyFolder *folder;
 811         TnyFolderStore *parent_folder;
 812         gboolean done;
 813
 814         g_signal_stop_emission_by_name (widget, "drag-data-received");
 815         model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));
 816
 817         /* Get the unsorted model, and the path to the source row */
 818         gtk_tree_get_row_drag_data (selection_data,
 819                                     &model,
 820                                     &source_row);
 821
 822         /* Can not call gtk_tree_view_get_drag_dest_row() because it's
 823            not selected anymore */
 824         gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget),
 825                                            x, y,
 826                                            &dest_row,
 827                                            &pos);
 828
 829         /* Only allow drops IN other rows */
 830         if (!dest_row ||
 831             pos == GTK_TREE_VIEW_DROP_BEFORE ||
 832             pos == GTK_TREE_VIEW_DROP_AFTER)
 833                 return;
 834
 835         child_dest_row =
 836                 gtk_tree_model_sort_convert_path_to_child_path (GTK_TREE_MODEL_SORT (model_sort),
 837                                                                 dest_row);
 838         gtk_tree_path_free (dest_row);
 839
 840         if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
 841                                                    child_dest_row,
 842                                                    selection_data))
 843                 goto out;
 844
 845         /* Do the mail operation */
 846         gtk_tree_model_get_iter (model, &parent_iter, child_dest_row);
 847         gtk_tree_model_get_iter (model, &iter, source_row);
 848         gtk_tree_model_get (model, &parent_iter,
 849                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &parent_folder, -1);
 850         gtk_tree_model_get (model, &iter,
 851                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder, -1);
 852
 853         g_signal_emit (G_OBJECT (widget), signals[FOLDER_MOVED_SIGNAL], 0,
 854                        folder, parent_folder, &done);
 855         if (!done)
 856                 goto out;
 857
 858         /* Get a row reference to the source path because the path
 859            could change after the insertion */
 860         source_row_reference = gtk_tree_row_reference_new (model, source_row);
 861         gtk_tree_path_free (source_row);
 862
 863         /* Insert the dragged row as a child of the dest row */
 864         gtk_tree_path_down (child_dest_row);
 865         if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
 866                                                    child_dest_row,
 867                                                    selection_data)) {
 868
 869                 /* Clean dest row */
 870                 gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
 871                                                  NULL,
 872                                                  GTK_TREE_VIEW_DROP_BEFORE);
 873
 874                 /* Get the new path of the source row */
 875                 source_row = gtk_tree_row_reference_get_path (source_row_reference);
 876
 877                 /* Delete the source row */
 878                 gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
 879                                                        source_row);
 880
 881                 gtk_tree_path_free (source_row);
 882         }
 883
 884         gtk_tree_row_reference_free (source_row_reference);
 885
 886  out:
 887         gtk_tree_path_free (child_dest_row);
 888 }
 889
 890 static gint
 891 expand_row_timeout (gpointer data)
 892 {
 893   GtkTreeView *tree_view = data;
 894   GtkTreePath *dest_path = NULL;
 895   GtkTreeViewDropPosition pos;
 896   gboolean result = FALSE;
 897
 898   GDK_THREADS_ENTER ();
 899
 900   gtk_tree_view_get_drag_dest_row (tree_view,
 901                                    &dest_path,
 902                                    &pos);
 903
 904   if (dest_path &&
 905       (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
 906        pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)) {
 907           gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
 908           gtk_tree_path_free (dest_path);
 909   }
 910   else {
 911           if (dest_path)
 912                   gtk_tree_path_free (dest_path);
 913
 914           result = TRUE;
 915   }
 916
 917   GDK_THREADS_LEAVE ();
 918
 919   return result;
 920 }
 921
 922
 923 static gboolean
 924 drag_motion_cb (GtkWidget      *widget,
 925                 GdkDragContext *context,
 926                 gint            x,
 927                 gint            y,
 928                 guint           time,
 929                 gpointer        user_data)
 930 {
 931         GtkTreeViewDropPosition pos;
 932         GtkTreePath *dest_row;
 933         ModestFolderViewPrivate *priv;
 934
 935         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (widget);
 936
 937         if (priv->timer_expander != 0) {
 938                 g_source_remove (priv->timer_expander);
 939                 priv->timer_expander = 0;
 940         }
 941
 942         gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget),
 943                                            x, y,
 944                                            &dest_row,
 945                                            &pos);
 946
 947         if (!dest_row)
 948                 return FALSE;
 949
 950         /* Expand the selected row after 1/2 second */
 951         if (!gtk_tree_view_row_expanded (GTK_TREE_VIEW (widget), dest_row)) {
 952                 gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), dest_row, pos);
 953                 priv->timer_expander = g_timeout_add (500, expand_row_timeout, widget);
 954         }
 955         gtk_tree_path_free (dest_row);
 956
 957         return TRUE;
 958 }
 959
 960 static void
 961 setup_drag_and_drop (GtkTreeView *self)
 962 {
 963         gtk_drag_dest_set (GTK_WIDGET (self),
 964                            GTK_DEST_DEFAULT_ALL,
 965                            drag_types,
 966                            G_N_ELEMENTS (drag_types),
 967                            GDK_ACTION_MOVE);
 968
 969         gtk_signal_connect(GTK_OBJECT (self),
 970                            "drag_data_received",
 971                            GTK_SIGNAL_FUNC(drag_data_received_cb),
 972                            NULL);
 973
 974
 975         gtk_drag_source_set (GTK_WIDGET (self),
 976                              GDK_BUTTON1_MASK | GDK_BUTTON3_MASK,
 977                              drag_types,
 978                              G_N_ELEMENTS (drag_types),
 979                              GDK_ACTION_MOVE);
 980
 981
 982         gtk_signal_connect(GTK_OBJECT (self),
 983                            "drag_motion",
 984                            GTK_SIGNAL_FUNC(drag_motion_cb),
 985                            NULL);
 986
 987
 988         gtk_signal_connect(GTK_OBJECT (self),
 989                            "drag_data_get",
 990                            GTK_SIGNAL_FUNC(drag_data_get_cb),
 991                            NULL);
 992 }