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-folder-monitor.h>
  38 #include <tny-account-store.h>
  39 #include <tny-account.h>
  40 #include <tny-folder.h>
  41 #include <tny-camel-folder.h>
  42 #include <tny-simple-list.h>
  43 #include <modest-tny-folder.h>
  44 #include <modest-marshal.h>
  45 #include <modest-icon-names.h>
  46 #include <modest-tny-account-store.h>
  47 #include <modest-text-utils.h>
  48 #include <modest-runtime.h>
  49 #include "modest-folder-view.h"
  50
  51 /* 'private'/'protected' functions */
  52 static void modest_folder_view_class_init  (ModestFolderViewClass *klass);
  53 static void modest_folder_view_init        (ModestFolderView *obj);
  54 static void modest_folder_view_finalize    (GObject *obj);
  55
  56 static gboolean     update_model           (ModestFolderView *self,
  57                                             ModestTnyAccountStore *account_store);
  58
  59 static gboolean     update_model_empty     (ModestFolderView *self);
  60
  61 static void         on_selection_changed   (GtkTreeSelection *sel, gpointer data);
  62
  63 static gint         cmp_rows               (GtkTreeModel *tree_model,
  64                                             GtkTreeIter *iter1,
  65                                             GtkTreeIter *iter2,
  66                                             gpointer user_data);
  67
  68 /* DnD functions */
  69 static void         on_drag_data_get       (GtkWidget *widget,
  70                                             GdkDragContext *context,
  71                                             GtkSelectionData *selection_data,
  72                                             guint info,
  73                                             guint time,
  74                                             gpointer data);
  75
  76 static void         on_drag_data_received  (GtkWidget *widget,
  77                                             GdkDragContext *context,
  78                                             gint x,
  79                                             gint y,
  80                                             GtkSelectionData *selection_data,
  81                                             guint info,
  82                                             guint time,
  83                                             gpointer data);
  84
  85 static gboolean     on_drag_motion         (GtkWidget      *widget,
  86                                             GdkDragContext *context,
  87                                             gint            x,
  88                                             gint            y,
  89                                             guint           time,
  90                                             gpointer        user_data);
  91
  92 static gint         expand_row_timeout     (gpointer data);
  93
  94 static void         setup_drag_and_drop    (GtkTreeView *self);
  95
  96
  97 static const GtkTargetEntry drag_types[] =
  98 {
  99         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, 2 }
 100 };
 101
 102
 103 enum {
 104         FOLDER_SELECTION_CHANGED_SIGNAL,
 105         FOLDER_MOVED_SIGNAL,
 106         LAST_SIGNAL
 107 };
 108
 109 typedef struct _ModestFolderViewPrivate ModestFolderViewPrivate;
 110 struct _ModestFolderViewPrivate {
 111         TnyAccountStore     *account_store;
 112         TnyFolder           *cur_folder;
 113         GtkTreeRowReference *cur_row;
 114
 115         gulong               sig1, sig2;
 116         GMutex              *lock;
 117
 118         GtkTreeSelection    *cur_selection;
 119         TnyFolderStoreQuery *query;
 120         guint                timer_expander;
 121
 122         TnyFolderMonitor    *monitor;
 123 };
 124 #define MODEST_FOLDER_VIEW_GET_PRIVATE(o)                       \
 125         (G_TYPE_INSTANCE_GET_PRIVATE((o),                       \
 126                                      MODEST_TYPE_FOLDER_VIEW,   \
 127                                      ModestFolderViewPrivate))
 128 /* globals */
 129 static GObjectClass *parent_class = NULL;
 130
 131 static guint signals[LAST_SIGNAL] = {0};
 132
 133 GType
 134 modest_folder_view_get_type (void)
 135 {
 136         static GType my_type = 0;
 137         if (!my_type) {
 138                 static const GTypeInfo my_info = {
 139                         sizeof(ModestFolderViewClass),
 140                         NULL,           /* base init */
 141                         NULL,           /* base finalize */
 142                         (GClassInitFunc) modest_folder_view_class_init,
 143                         NULL,           /* class finalize */
 144                         NULL,           /* class data */
 145                         sizeof(ModestFolderView),
 146                         1,              /* n_preallocs */
 147                         (GInstanceInitFunc) modest_folder_view_init,
 148                         NULL
 149                 };
 150
 151                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
 152                                                   "ModestFolderView",
 153                                                   &my_info, 0);
 154         }
 155         return my_type;
 156 }
 157
 158 static void
 159 modest_folder_view_class_init (ModestFolderViewClass *klass)
 160 {
 161         GObjectClass *gobject_class;
 162         gobject_class = (GObjectClass*) klass;
 163
 164         parent_class            = g_type_class_peek_parent (klass);
 165         gobject_class->finalize = modest_folder_view_finalize;
 166
 167         klass->update_model = modest_folder_view_update_model;
 168
 169         g_type_class_add_private (gobject_class,
 170                                   sizeof(ModestFolderViewPrivate));
 171
 172         signals[FOLDER_SELECTION_CHANGED_SIGNAL] =
 173                 g_signal_new ("folder_selection_changed",
 174                               G_TYPE_FROM_CLASS (gobject_class),
 175                               G_SIGNAL_RUN_FIRST,
 176                               G_STRUCT_OFFSET (ModestFolderViewClass,
 177                                                folder_selection_changed),
 178                               NULL, NULL,
 179                               modest_marshal_VOID__POINTER_BOOLEAN,
 180                               G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_BOOLEAN);
 181
 182         /**
 183          * ModestFolderView::folder-moved
 184          * @self: the #MailOperation that emits the signal
 185          * @folder: the #TnyFolder that is going to be moved
 186          * @parent: then #TnyFolderStore that is going to be the new parent
 187          * @done: indicates if the folder move was correctly completed or not
 188          * @user_data: user data set when the signal handler was connected
 189          *
 190          * Emitted when a the user wants to move a folder through a
 191          * drag and drop action
 192          */
 193         signals[FOLDER_MOVED_SIGNAL] =
 194                 g_signal_new ("folder_moved",
 195                               G_TYPE_FROM_CLASS (gobject_class),
 196                               G_SIGNAL_RUN_FIRST,
 197                               G_STRUCT_OFFSET (ModestFolderViewClass, folder_moved),
 198                               NULL, NULL,
 199                               modest_marshal_VOID__POINTER_POINTER_POINTER,
 200                               G_TYPE_NONE, 3, G_TYPE_POINTER, G_TYPE_POINTER, G_TYPE_POINTER);
 201 }
 202
 203
 204
 205 static void
 206 text_cell_data  (GtkTreeViewColumn *column,  GtkCellRenderer *renderer,
 207                  GtkTreeModel *tree_model,  GtkTreeIter *iter,  gpointer data)
 208 {
 209         GObject *rendobj;
 210         gchar *fname;
 211         gint unread;
 212         TnyFolderType type;
 213         TnyFolder *folder;
 214
 215         g_return_if_fail (column);
 216         g_return_if_fail (tree_model);
 217
 218         gtk_tree_model_get (tree_model, iter,
 219                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &fname,
 220                             TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN, &unread,
 221                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 222                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder,
 223                             -1);
 224         rendobj = G_OBJECT(renderer);
 225
 226         if (!fname)
 227                 return;
 228
 229         if (folder && type != TNY_FOLDER_TYPE_ROOT) { /* FIXME: tnymail bug? crashes with root folders */
 230                 if (modest_tny_folder_is_local_folder (folder)) {
 231                         TnyFolderType type;
 232                         type = modest_tny_folder_get_local_folder_type (folder);
 233                         if (type != TNY_FOLDER_TYPE_UNKNOWN) {
 234                                 g_free (fname);
 235                                 fname = g_strdup(modest_local_folder_info_get_type_display_name (type));
 236                         }
 237                 }
 238         } else if (folder && type == TNY_FOLDER_TYPE_ROOT) {
 239                 if (strcmp (fname, MODEST_LOCAL_FOLDERS_ACCOUNT_NAME) == 0) {/* FIXME: hack */
 240                         g_free (fname);
 241                         fname = g_strdup (MODEST_LOCAL_FOLDERS_DISPLAY_NAME);
 242                 }
 243         }
 244
 245         if (unread > 0) {
 246                 gchar *folder_title = g_strdup_printf ("%s (%d)", fname, unread);
 247                 g_object_set (rendobj,"text", folder_title,  "weight", 800, NULL);
 248                 g_free (folder_title);
 249         } else
 250                 g_object_set (rendobj,"text", fname, "weight", 400, NULL);
 251
 252         g_free (fname);
 253 }
 254
 255
 256 static GdkPixbuf*
 257 get_cached_icon (const gchar *name)
 258 {
 259         GError *err = NULL;
 260         gpointer pixbuf;
 261         gpointer orig_key;
 262         static GHashTable *icon_cache = NULL;
 263
 264         g_return_val_if_fail (name, NULL);
 265
 266         if (G_UNLIKELY(!icon_cache))
 267                 icon_cache = modest_cache_mgr_get_cache (modest_runtime_get_cache_mgr(),
 268                                                          MODEST_CACHE_MGR_CACHE_TYPE_PIXBUF);
 269
 270         if (!icon_cache || !g_hash_table_lookup_extended (icon_cache, name, &orig_key, &pixbuf)) {
 271                 pixbuf = (gpointer)gdk_pixbuf_new_from_file (name, &err);
 272                 if (!pixbuf) {
 273                         g_printerr ("modest: error in icon factory while loading '%s': %s\n",
 274                                     name, err->message);
 275                         g_error_free (err);
 276                 }
 277                 /* if we cannot find it, we still insert (if we have a cache), so we get the error
 278                  * only once */
 279                 if (icon_cache)
 280                         g_hash_table_insert (icon_cache, g_strdup(name),(gpointer)pixbuf);
 281         }
 282         return GDK_PIXBUF(pixbuf);
 283 }
 284
 285
 286 static void
 287 icon_cell_data  (GtkTreeViewColumn *column,  GtkCellRenderer *renderer,
 288                  GtkTreeModel *tree_model,  GtkTreeIter *iter, gpointer data)
 289 {
 290         GObject *rendobj;
 291         GdkPixbuf *pixbuf;
 292         TnyFolderType type;
 293         gchar *fname = NULL;
 294         gint unread;
 295
 296         rendobj = G_OBJECT(renderer);
 297         gtk_tree_model_get (tree_model, iter,
 298                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 299                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &fname,
 300                             TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN, &unread, -1);
 301         rendobj = G_OBJECT(renderer);
 302
 303         if (type == TNY_FOLDER_TYPE_NORMAL || type == TNY_FOLDER_TYPE_UNKNOWN) {
 304                 type = modest_tny_folder_guess_folder_type_from_name (fname);
 305         }
 306         g_free (fname);
 307
 308         switch (type) {
 309         case TNY_FOLDER_TYPE_ROOT:
 310                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_ACCOUNT);
 311                 break;
 312         case TNY_FOLDER_TYPE_INBOX:
 313                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_INBOX);
 314                 break;
 315         case TNY_FOLDER_TYPE_OUTBOX:
 316                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_OUTBOX);
 317                 break;
 318         case TNY_FOLDER_TYPE_JUNK:
 319                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_JUNK);
 320                 break;
 321         case TNY_FOLDER_TYPE_SENT:
 322                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_SENT);
 323                 break;
 324         case TNY_FOLDER_TYPE_TRASH:
 325                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_TRASH);
 326                 break;
 327         case TNY_FOLDER_TYPE_DRAFTS:
 328                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_DRAFTS);
 329                 break;
 330         case TNY_FOLDER_TYPE_NOTES:
 331                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_NOTES);
 332                 break;
 333         case TNY_FOLDER_TYPE_CALENDAR:
 334                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_CALENDAR);
 335                 break;
 336         case TNY_FOLDER_TYPE_CONTACTS:
 337                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_CONTACTS);
 338                 break;
 339         case TNY_FOLDER_TYPE_NORMAL:
 340         default:
 341                 pixbuf = get_cached_icon (MODEST_FOLDER_ICON_NORMAL);
 342                 break;
 343         }
 344         g_object_set (rendobj, "pixbuf", pixbuf, NULL);
 345 }
 346
 347 static void
 348 modest_folder_view_init (ModestFolderView *obj)
 349 {
 350         ModestFolderViewPrivate *priv;
 351         GtkTreeViewColumn *column;
 352         GtkCellRenderer *renderer;
 353         GtkTreeSelection *sel;
 354
 355         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(obj);
 356
 357         priv->timer_expander = 0;
 358         priv->account_store  = NULL;
 359         priv->cur_folder     = NULL;
 360         priv->cur_row        = NULL;
 361         priv->query          = NULL;
 362         priv->monitor        = NULL;
 363
 364         priv->lock           = g_mutex_new ();
 365
 366         column = gtk_tree_view_column_new ();
 367         gtk_tree_view_append_column (GTK_TREE_VIEW(obj),column);
 368
 369         renderer = gtk_cell_renderer_pixbuf_new();
 370         gtk_tree_view_column_pack_start (column, renderer, FALSE);
 371         gtk_tree_view_column_set_cell_data_func(column, renderer,
 372                                                 icon_cell_data, NULL, NULL);
 373
 374         renderer = gtk_cell_renderer_text_new();
 375         gtk_tree_view_column_pack_start (column, renderer, FALSE);
 376         gtk_tree_view_column_set_cell_data_func(column, renderer,
 377                                                 text_cell_data, NULL, NULL);
 378
 379         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(obj));
 380         gtk_tree_selection_set_mode (sel, GTK_SELECTION_SINGLE);
 381
 382         gtk_tree_view_column_set_spacing (column, 2);
 383         gtk_tree_view_column_set_resizable (column, TRUE);
 384         gtk_tree_view_column_set_fixed_width (column, TRUE);
 385         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(obj), FALSE);
 386         gtk_tree_view_set_enable_search     (GTK_TREE_VIEW(obj), FALSE);
 387
 388         setup_drag_and_drop (GTK_TREE_VIEW(obj));
 389 }
 390
 391 static void
 392 modest_folder_view_finalize (GObject *obj)
 393 {
 394         ModestFolderViewPrivate *priv;
 395         GtkTreeSelection    *sel;
 396
 397         g_return_if_fail (obj);
 398
 399         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(obj);
 400
 401         if (priv->timer_expander != 0) {
 402                 g_source_remove (priv->timer_expander);
 403                 priv->timer_expander = 0;
 404         }
 405
 406         if (priv->account_store) {
 407                 g_signal_handler_disconnect (G_OBJECT(priv->account_store),
 408                                              priv->sig1);
 409                 g_object_unref (G_OBJECT(priv->account_store));
 410                 priv->account_store = NULL;
 411         }
 412
 413         if (priv->lock) {
 414                 g_mutex_free (priv->lock);
 415                 priv->lock = NULL;
 416         }
 417
 418         if (priv->query) {
 419                 g_object_unref (G_OBJECT (priv->query));
 420                 priv->query = NULL;
 421         }
 422
 423         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(obj));
 424         if (sel)
 425                 g_signal_handler_disconnect (G_OBJECT(sel), priv->sig2);
 426
 427         G_OBJECT_CLASS(parent_class)->finalize (obj);
 428 }
 429
 430
 431 static void
 432 on_account_update (TnyAccountStore *account_store, const gchar *account,
 433                    gpointer user_data)
 434 {
 435         if (!update_model (MODEST_FOLDER_VIEW(user_data),
 436                            MODEST_TNY_ACCOUNT_STORE(account_store)))
 437                 g_printerr ("modest: failed to update model for changes in '%s'",
 438                             account);
 439 }
 440
 441 void
 442 modest_folder_view_set_title (ModestFolderView *self, const gchar *title)
 443 {
 444         GtkTreeViewColumn *col;
 445
 446         g_return_if_fail (self);
 447
 448         col = gtk_tree_view_get_column (GTK_TREE_VIEW(self), 0);
 449         if (!col) {
 450                 g_printerr ("modest: failed get column for title\n");
 451                 return;
 452         }
 453
 454         gtk_tree_view_column_set_title (col, title);
 455         gtk_tree_view_set_headers_visible (GTK_TREE_VIEW(self),
 456                                            title != NULL);
 457 }
 458
 459 GtkWidget*
 460 modest_folder_view_new (ModestTnyAccountStore *account_store,
 461                         TnyFolderStoreQuery *query)
 462 {
 463         GObject *self;
 464         ModestFolderViewPrivate *priv;
 465         GtkTreeSelection *sel;
 466
 467         g_return_val_if_fail (account_store, NULL);
 468
 469         self = G_OBJECT(g_object_new(MODEST_TYPE_FOLDER_VIEW, NULL));
 470         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 471
 472         priv->account_store = g_object_ref (G_OBJECT (account_store));
 473         if (query)
 474                 priv->query = g_object_ref (G_OBJECT (query));
 475
 476         if (!update_model (MODEST_FOLDER_VIEW(self),
 477                            MODEST_TNY_ACCOUNT_STORE(account_store)))
 478                 g_printerr ("modest: failed to update model\n");
 479
 480         priv->sig1 = g_signal_connect (G_OBJECT(account_store), "account_update",
 481                                        G_CALLBACK (on_account_update), self);
 482
 483         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 484         priv->sig2 = g_signal_connect (sel, "changed",
 485                                        G_CALLBACK(on_selection_changed), self);
 486         return GTK_WIDGET(self);
 487 }
 488
 489
 490 static gboolean
 491 update_model_empty (ModestFolderView *self)
 492 {
 493         ModestFolderViewPrivate *priv;
 494
 495         g_return_val_if_fail (self, FALSE);
 496         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 497
 498         g_mutex_lock (priv->lock);
 499         {
 500                 if (priv->monitor) {
 501                         tny_folder_monitor_stop (priv->monitor);
 502                         g_object_unref(G_OBJECT(priv->monitor));
 503                         priv->monitor = NULL;
 504                 }
 505         }
 506         g_mutex_unlock (priv->lock);
 507
 508         g_signal_emit (G_OBJECT(self), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
 509                        NULL, TRUE);
 510         return TRUE;
 511 }
 512
 513
 514 /* this feels dirty; any other way to expand all the root items? */
 515 static void
 516 expand_root_items (ModestFolderView *self)
 517 {
 518         GtkTreePath *path;
 519         path = gtk_tree_path_new_first ();
 520
 521         /* all folders should have child items, so.. */
 522         while (gtk_tree_view_expand_row (GTK_TREE_VIEW(self), path, FALSE))
 523                 gtk_tree_path_next (path);
 524
 525         gtk_tree_path_free (path);
 526 }
 527
 528 static gboolean
 529 update_model (ModestFolderView *self, ModestTnyAccountStore *account_store)
 530 {
 531         ModestFolderViewPrivate *priv;
 532
 533         TnyList          *account_list;
 534         GtkTreeModel     *model, *sortable;
 535
 536         g_return_val_if_fail (account_store, FALSE);
 537
 538         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 539
 540         /* Notify that there is no folder selected */
 541         update_model_empty (self);
 542
 543         model        = tny_gtk_folder_store_tree_model_new (TRUE, NULL);
 544         account_list = TNY_LIST(model);
 545
 546         tny_account_store_get_accounts (TNY_ACCOUNT_STORE(account_store),
 547                                         account_list,
 548                                         TNY_ACCOUNT_STORE_STORE_ACCOUNTS);
 549         if (account_list) {
 550                 sortable = gtk_tree_model_sort_new_with_model (model);
 551                 gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 552                                                       TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 553                                                       GTK_SORT_ASCENDING);
 554                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE (sortable),
 555                                                  TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 556                                                  cmp_rows, NULL, NULL);
 557
 558                 /* Set new model */
 559                 gtk_tree_view_set_model (GTK_TREE_VIEW(self), sortable);
 560                 expand_root_items (self); /* expand all account folders */
 561         }
 562
 563         g_object_unref (model);
 564         return TRUE;
 565 }
 566
 567
 568 static void
 569 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
 570 {
 571         GtkTreeModel            *model_sort, *model;
 572         TnyFolder               *folder = NULL;
 573         GtkTreeIter             iter, iter_sort;
 574         GtkTreePath            *path;
 575         ModestFolderView        *tree_view;
 576         ModestFolderViewPrivate *priv;
 577         gint                    type;
 578
 579         g_return_if_fail (sel);
 580         g_return_if_fail (user_data);
 581
 582         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(user_data);
 583         priv->cur_selection = sel;
 584
 585         /* folder was _un_selected if true */
 586         if (!gtk_tree_selection_get_selected (sel, &model_sort, &iter_sort)) {
 587                 priv->cur_folder = NULL; /* FIXME: need this? */
 588                 priv->cur_row = NULL; /* FIXME: need this? */
 589                 return;
 590         }
 591
 592         model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
 593         gtk_tree_model_sort_convert_iter_to_child_iter (GTK_TREE_MODEL_SORT (model_sort),
 594                                                         &iter,
 595                                                         &iter_sort);
 596
 597         tree_view = MODEST_FOLDER_VIEW (user_data);
 598
 599         gtk_tree_model_get (model, &iter,
 600                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 601                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder,
 602                             -1);
 603
 604         if (type == TNY_FOLDER_TYPE_ROOT)
 605                 return;
 606
 607         /* emit 2 signals: one for the unselection of the old one,
 608          * and one for the selection of the new on */
 609         g_signal_emit (G_OBJECT(tree_view), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
 610                        priv->cur_folder, FALSE);
 611         if (priv->cur_folder) {
 612                 tny_folder_sync (priv->cur_folder, TRUE, NULL); /* FIXME */
 613                 gtk_tree_row_reference_free (priv->cur_row);
 614         }
 615         priv->cur_folder = folder;
 616         g_signal_emit (G_OBJECT(tree_view), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
 617                        folder, TRUE);
 618
 619         path = gtk_tree_model_get_path (model_sort, &iter_sort);
 620         priv->cur_row = gtk_tree_row_reference_new (model_sort, path);
 621         gtk_tree_path_free (path);
 622 }
 623
 624 gboolean
 625 modest_folder_view_update_model (ModestFolderView *self, TnyAccountStore *account_store)
 626 {
 627         g_return_val_if_fail (MODEST_IS_FOLDER_VIEW (self), FALSE);
 628
 629         g_signal_emit (G_OBJECT(self), signals[FOLDER_SELECTION_CHANGED_SIGNAL],
 630                        0, NULL, TRUE);
 631
 632         return update_model (self, MODEST_TNY_ACCOUNT_STORE(account_store)); /* ugly */
 633 }
 634
 635 TnyFolder *
 636 modest_folder_view_get_selected (ModestFolderView *self)
 637 {
 638         ModestFolderViewPrivate *priv;
 639
 640         g_return_val_if_fail (self, NULL);
 641
 642         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 643         if (priv->cur_folder)
 644                 g_object_ref (priv->cur_folder);
 645
 646         return priv->cur_folder;
 647 }
 648
 649 static gboolean
 650 get_model_iter (ModestFolderView *self,
 651                 GtkTreeModel **model,
 652                 GtkTreeIter *iter)
 653 {
 654         GtkTreeModel *model_sort;
 655         GtkTreeIter iter_sort;
 656         GtkTreePath *path;
 657         ModestFolderViewPrivate *priv;
 658
 659         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 660
 661         if (!priv->cur_folder)
 662                 return FALSE;
 663
 664         if (!gtk_tree_row_reference_valid (priv->cur_row))
 665                 return FALSE;
 666
 667         model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 668         *model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
 669
 670         /* Get path to retrieve iter */
 671         path = gtk_tree_row_reference_get_path (priv->cur_row);
 672         if (!gtk_tree_model_get_iter (model_sort, &iter_sort, path))
 673                 return FALSE;
 674
 675         gtk_tree_model_sort_convert_iter_to_child_iter (GTK_TREE_MODEL_SORT (model_sort),
 676                                                         iter,
 677                                                         &iter_sort);
 678         return TRUE;
 679 }
 680
 681 gboolean
 682 modest_folder_view_rename (ModestFolderView *self)
 683 {
 684         GtkTreeModel *model;
 685         GtkTreeIter iter;
 686         ModestFolderViewPrivate *priv;
 687         gchar *old_name;
 688
 689         g_return_val_if_fail (MODEST_IS_FOLDER_VIEW (self), FALSE);
 690
 691         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 692
 693         if (!get_model_iter (self, &model, &iter))
 694                 return FALSE;
 695
 696         /* Remove old name */
 697         gtk_tree_model_get (model, &iter,
 698                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 699                             &old_name, -1);
 700         g_free (old_name);
 701
 702         /* Set new name */
 703         gtk_tree_store_set (GTK_TREE_STORE (model), &iter,
 704                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 705                             tny_folder_get_name (priv->cur_folder), -1);
 706
 707         /* Invalidate selection */
 708         g_signal_emit (G_OBJECT(self), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
 709                        priv->cur_folder, TRUE);
 710
 711         return TRUE;
 712 }
 713
 714 gboolean
 715 modest_folder_view_add_subfolder (ModestFolderView *self, TnyFolder *folder)
 716 {
 717         GtkTreeModel *model;
 718         GtkTreeIter iter, child;
 719
 720         g_return_val_if_fail (MODEST_IS_FOLDER_VIEW (self), FALSE);
 721
 722         if (!get_model_iter (self, &model, &iter))
 723                 return FALSE;
 724
 725         /* Append a new child to the folder */
 726         gtk_tree_store_append (GTK_TREE_STORE (model), &child, &iter);
 727         gtk_tree_store_set (GTK_TREE_STORE (model), &child,
 728                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 729                             tny_folder_get_name (TNY_FOLDER (folder)),
 730                             TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN,
 731                             tny_folder_get_unread_count (TNY_FOLDER (folder)),
 732                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN,
 733                             tny_folder_get_folder_type (TNY_FOLDER (folder)),
 734                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN,
 735                             folder, -1);
 736
 737         return TRUE;
 738 }
 739
 740 static gint
 741 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
 742           gpointer user_data)
 743 {
 744         gint cmp;
 745         gchar         *name1, *name2;
 746         TnyFolderType type;
 747         TnyFolder     *folder1, *folder2;
 748
 749         gtk_tree_model_get (tree_model, iter1,
 750                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &name1,
 751                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 752                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder1,
 753                             -1);
 754         gtk_tree_model_get (tree_model, iter2,
 755                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &name2,
 756                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder2,
 757                             -1);
 758
 759         /* local_folders should be the last one */
 760         if (type == TNY_FOLDER_TYPE_ROOT) {
 761                 /* the account name is also the name of the root folder
 762                  * in case of local folders */
 763                 if (name1 && strcmp (name1, MODEST_LOCAL_FOLDERS_ACCOUNT_NAME) == 0)
 764                         cmp = +1;
 765                 else if (name2 && strcmp (name2, MODEST_LOCAL_FOLDERS_ACCOUNT_NAME) == 0)
 766                         cmp = -1;
 767                 else
 768                         cmp = modest_text_utils_utf8_strcmp (name1, name2, TRUE);
 769         } else
 770                 cmp = modest_text_utils_utf8_strcmp (name1, name2, TRUE);
 771
 772         g_free (name1);
 773         g_free (name2);
 774
 775         return cmp;
 776 }
 777
 778 /*****************************************************************************/
 779 /*                        DRAG and DROP stuff                                */
 780 /*****************************************************************************/
 781 static void
 782 on_drag_data_get (GtkWidget *widget,
 783                   GdkDragContext *context,
 784                   GtkSelectionData *selection_data,
 785                   guint info,
 786                   guint time,
 787                   gpointer data)
 788 {
 789         GtkTreeSelection *selection;
 790         GtkTreeModel *model_sort, *model;
 791         GtkTreeIter iter;
 792         GtkTreePath *source_row_sort;
 793         GtkTreePath *source_row;
 794
 795         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (widget));
 796         gtk_tree_selection_get_selected (selection, &model_sort, &iter);
 797         source_row_sort = gtk_tree_model_get_path (model_sort, &iter);
 798
 799         model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
 800         source_row = gtk_tree_model_sort_convert_path_to_child_path (GTK_TREE_MODEL_SORT (model_sort),
 801                                                                      source_row_sort);
 802
 803         gtk_tree_set_row_drag_data (selection_data,
 804                                     model,
 805                                     source_row);
 806
 807         gtk_tree_path_free (source_row_sort);
 808         gtk_tree_path_free (source_row);
 809 }
 810
 811 static void
 812 on_drag_data_received (GtkWidget *widget,
 813                        GdkDragContext *context,
 814                        gint x,
 815                        gint y,
 816                        GtkSelectionData *selection_data,
 817                        guint info,
 818                        guint time,
 819                        gpointer data)
 820 {
 821         GtkTreeModel *model_sort, *model;
 822         GtkTreeRowReference *source_row_reference;
 823         GtkTreePath *source_row, *dest_row, *child_dest_row;
 824         GtkTreeViewDropPosition pos;
 825         GtkTreeIter parent_iter, iter;
 826         TnyFolder *folder;
 827         TnyFolderStore *parent_folder;
 828         gboolean done, success = FALSE;
 829
 830         /* Do not allow further process */
 831         g_signal_stop_emission_by_name (widget, "drag-data-received");
 832
 833         if (selection_data->length == 0)
 834                 goto out;
 835
 836         /* Get the unsorted model, and the path to the source row */
 837         model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));
 838         gtk_tree_get_row_drag_data (selection_data,
 839                                     &model,
 840                                     &source_row);
 841
 842         /* Get the path to the destination row. Can not call
 843            gtk_tree_view_get_drag_dest_row() because the source row
 844            it's not selected anymore */
 845         gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget),
 846                                            x, y,
 847                                            &dest_row,
 848                                            &pos);
 849
 850         /* Only allow drops IN other rows */
 851         if (!dest_row ||
 852             pos == GTK_TREE_VIEW_DROP_BEFORE ||
 853             pos == GTK_TREE_VIEW_DROP_AFTER)
 854                 goto out;
 855
 856         /* Get the destination row in the usorted model */
 857         child_dest_row =
 858                 gtk_tree_model_sort_convert_path_to_child_path (GTK_TREE_MODEL_SORT (model_sort),
 859                                                                 dest_row);
 860         gtk_tree_path_free (dest_row);
 861
 862         /* Check if the drag is possible */
 863         if (!gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (model),
 864                                                    child_dest_row,
 865                                                    selection_data)) {
 866                 gtk_tree_path_free (child_dest_row);
 867                 goto out;
 868         }
 869
 870         /* Do the mail operation */
 871         gtk_tree_model_get_iter (model, &parent_iter, child_dest_row);
 872         gtk_tree_model_get_iter (model, &iter, source_row);
 873         gtk_tree_model_get (model, &parent_iter,
 874                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &parent_folder, -1);
 875         gtk_tree_model_get (model, &iter,
 876                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder, -1);
 877
 878         g_signal_emit (G_OBJECT (widget), signals[FOLDER_MOVED_SIGNAL], 0,
 879                        folder, parent_folder, &done);
 880         if (!done)
 881                 goto out;
 882
 883         /* Get a row reference to the source path because the path
 884            could change after the insertion. The gtk_drag_finish() is
 885            not able to delete the source because that, so we have to
 886            do it manually */
 887         source_row_reference = gtk_tree_row_reference_new (model, source_row);
 888         gtk_tree_path_free (source_row);
 889
 890         /* Insert the dragged row as a child of the dest row */
 891         gtk_tree_path_down (child_dest_row);
 892         if (gtk_tree_drag_dest_drag_data_received (GTK_TREE_DRAG_DEST (model),
 893                                                    child_dest_row,
 894                                                    selection_data)) {
 895
 896                 /* Clean dest row */
 897                 gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget),
 898                                                  NULL,
 899                                                  GTK_TREE_VIEW_DROP_BEFORE);
 900
 901                 /* Get the new path of the source row */
 902                 source_row = gtk_tree_row_reference_get_path (source_row_reference);
 903
 904                 /* Delete the source row */
 905                 gtk_tree_drag_source_drag_data_delete (GTK_TREE_DRAG_SOURCE (model),
 906                                                        source_row);
 907
 908                 success = TRUE;
 909
 910                 gtk_tree_path_free (source_row);
 911         }
 912
 913         gtk_tree_row_reference_free (source_row_reference);
 914         gtk_tree_path_free (child_dest_row);
 915 out:
 916         /* Never delete the source, we do it manually */
 917         gtk_drag_finish (context, success, FALSE, time);
 918
 919 }
 920
 921 static gint
 922 expand_row_timeout (gpointer data)
 923 {
 924         GtkTreeView *tree_view = data;
 925         GtkTreePath *dest_path = NULL;
 926         GtkTreeViewDropPosition pos;
 927         gboolean result = FALSE;
 928
 929         GDK_THREADS_ENTER ();
 930
 931         gtk_tree_view_get_drag_dest_row (tree_view,
 932                                          &dest_path,
 933                                          &pos);
 934
 935         if (dest_path &&
 936             (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
 937              pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)) {
 938                 gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
 939                 gtk_tree_path_free (dest_path);
 940         }
 941         else {
 942                 if (dest_path)
 943                         gtk_tree_path_free (dest_path);
 944
 945                 result = TRUE;
 946         }
 947
 948         GDK_THREADS_LEAVE ();
 949
 950         return result;
 951 }
 952
 953
 954 static gboolean
 955 on_drag_motion (GtkWidget      *widget,
 956                 GdkDragContext *context,
 957                 gint            x,
 958                 gint            y,
 959                 guint           time,
 960                 gpointer        user_data)
 961 {
 962         GtkTreeViewDropPosition pos;
 963         GtkTreePath *dest_row;
 964         ModestFolderViewPrivate *priv;
 965
 966         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (widget);
 967
 968         if (priv->timer_expander != 0) {
 969                 g_source_remove (priv->timer_expander);
 970                 priv->timer_expander = 0;
 971         }
 972
 973         gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget),
 974                                            x, y,
 975                                            &dest_row,
 976                                            &pos);
 977
 978         if (!dest_row)
 979                 return FALSE;
 980
 981         /* Expand the selected row after 1/2 second */
 982         if (!gtk_tree_view_row_expanded (GTK_TREE_VIEW (widget), dest_row)) {
 983                 gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), dest_row, pos);
 984                 priv->timer_expander = g_timeout_add (500, expand_row_timeout, widget);
 985         }
 986         gtk_tree_path_free (dest_row);
 987
 988         return TRUE;
 989 }
 990
 991 static void
 992 setup_drag_and_drop (GtkTreeView *self)
 993 {
 994         gtk_drag_dest_set (GTK_WIDGET (self),
 995                            GTK_DEST_DEFAULT_ALL,
 996                            drag_types,
 997                            G_N_ELEMENTS (drag_types),
 998                            GDK_ACTION_MOVE);
 999
1000         gtk_signal_connect(GTK_OBJECT (self),
1001                            "drag_data_received",
1002                            GTK_SIGNAL_FUNC(on_drag_data_received),
1003                            NULL);
1004
1005
1006         gtk_drag_source_set (GTK_WIDGET (self),
1007                              GDK_BUTTON1_MASK | GDK_BUTTON3_MASK,
1008                              drag_types,
1009                              G_N_ELEMENTS (drag_types),
1010                              GDK_ACTION_MOVE);
1011
1012
1013         gtk_signal_connect(GTK_OBJECT (self),
1014                            "drag_motion",
1015                            GTK_SIGNAL_FUNC(on_drag_motion),
1016                            NULL);
1017
1018
1019         gtk_signal_connect(GTK_OBJECT (self),
1020                            "drag_data_get",
1021                            GTK_SIGNAL_FUNC(on_drag_data_get),
1022                            NULL);
1023 }