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-account-store-view.h>
  34 #include <tny-gtk-account-list-model.h>
  35 #include <tny-gtk-folder-store-tree-model.h>
  36 #include <tny-gtk-header-list-model.h>
  37 #include <tny-folder.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 #include <modest-dnd.h>
  51 #include <modest-platform.h>
  52
  53 /* 'private'/'protected' functions */
  54 static void modest_folder_view_class_init  (ModestFolderViewClass *klass);
  55 static void modest_folder_view_init        (ModestFolderView *obj);
  56 static void modest_folder_view_finalize    (GObject *obj);
  57
  58 static void         tny_account_store_view_init (gpointer g,
  59                                                  gpointer iface_data);
  60
  61 static void         modest_folder_view_set_account_store (TnyAccountStoreView *self,
  62                                                           TnyAccountStore     *account_store);
  63
  64 static gboolean     update_model           (ModestFolderView *self,
  65                                             ModestTnyAccountStore *account_store);
  66
  67 static void         on_selection_changed   (GtkTreeSelection *sel, gpointer data);
  68
  69 static void         on_account_update      (TnyAccountStore *account_store,
  70                                             const gchar *account,
  71                                             gpointer user_data);
  72
  73 static void         on_accounts_reloaded   (TnyAccountStore *store,
  74                                             gpointer user_data);
  75
  76 static gint         cmp_rows               (GtkTreeModel *tree_model,
  77                                             GtkTreeIter *iter1,
  78                                             GtkTreeIter *iter2,
  79                                             gpointer user_data);
  80
  81 /* DnD functions */
  82 static void         on_drag_data_get       (GtkWidget *widget,
  83                                             GdkDragContext *context,
  84                                             GtkSelectionData *selection_data,
  85                                             guint info,
  86                                             guint time,
  87                                             gpointer data);
  88
  89 static void         on_drag_data_received  (GtkWidget *widget,
  90                                             GdkDragContext *context,
  91                                             gint x,
  92                                             gint y,
  93                                             GtkSelectionData *selection_data,
  94                                             guint info,
  95                                             guint time,
  96                                             gpointer data);
  97
  98 static gboolean     on_drag_motion         (GtkWidget      *widget,
  99                                             GdkDragContext *context,
 100                                             gint            x,
 101                                             gint            y,
 102                                             guint           time,
 103                                             gpointer        user_data);
 104
 105 static gint         expand_row_timeout     (gpointer data);
 106
 107 static void         setup_drag_and_drop    (GtkTreeView *self);
 108
 109 static gboolean     on_key_pressed         (GtkWidget *self,
 110                                             GdkEventKey *event,
 111                                             gpointer user_data);
 112
 113 static void         on_configuration_key_changed         (ModestConf* conf,
 114                                                           const gchar *key,
 115                                                           ModestConfEvent event,
 116                                                           ModestFolderView *self);
 117
 118 enum {
 119         FOLDER_SELECTION_CHANGED_SIGNAL,
 120         LAST_SIGNAL
 121 };
 122
 123 typedef struct _ModestFolderViewPrivate ModestFolderViewPrivate;
 124 struct _ModestFolderViewPrivate {
 125         TnyAccountStore     *account_store;
 126         TnyFolder           *cur_folder;
 127         GtkTreeRowReference *cur_row;
 128
 129         gulong               account_update_signal;
 130         gulong               changed_signal;
 131         gulong               accounts_reloaded_signal;
 132
 133         GtkTreeSelection    *cur_selection;
 134         TnyFolderStoreQuery *query;
 135         guint                timer_expander;
 136
 137         gchar               *local_account_name;
 138 };
 139 #define MODEST_FOLDER_VIEW_GET_PRIVATE(o)                       \
 140         (G_TYPE_INSTANCE_GET_PRIVATE((o),                       \
 141                                      MODEST_TYPE_FOLDER_VIEW,   \
 142                                      ModestFolderViewPrivate))
 143 /* globals */
 144 static GObjectClass *parent_class = NULL;
 145
 146 static guint signals[LAST_SIGNAL] = {0};
 147
 148 GType
 149 modest_folder_view_get_type (void)
 150 {
 151         static GType my_type = 0;
 152         if (!my_type) {
 153                 static const GTypeInfo my_info = {
 154                         sizeof(ModestFolderViewClass),
 155                         NULL,           /* base init */
 156                         NULL,           /* base finalize */
 157                         (GClassInitFunc) modest_folder_view_class_init,
 158                         NULL,           /* class finalize */
 159                         NULL,           /* class data */
 160                         sizeof(ModestFolderView),
 161                         1,              /* n_preallocs */
 162                         (GInstanceInitFunc) modest_folder_view_init,
 163                         NULL
 164                 };
 165
 166                 static const GInterfaceInfo tny_account_store_view_info = {
 167                         (GInterfaceInitFunc) tny_account_store_view_init, /* interface_init */
 168                         NULL,         /* interface_finalize */
 169                         NULL          /* interface_data */
 170                 };
 171
 172
 173                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
 174                                                   "ModestFolderView",
 175                                                   &my_info, 0);
 176
 177                 g_type_add_interface_static (my_type,
 178                                              TNY_TYPE_ACCOUNT_STORE_VIEW,
 179                                              &tny_account_store_view_info);
 180         }
 181         return my_type;
 182 }
 183
 184 static void
 185 modest_folder_view_class_init (ModestFolderViewClass *klass)
 186 {
 187         GObjectClass *gobject_class;
 188         gobject_class = (GObjectClass*) klass;
 189
 190         parent_class            = g_type_class_peek_parent (klass);
 191         gobject_class->finalize = modest_folder_view_finalize;
 192
 193         g_type_class_add_private (gobject_class,
 194                                   sizeof(ModestFolderViewPrivate));
 195
 196         signals[FOLDER_SELECTION_CHANGED_SIGNAL] =
 197                 g_signal_new ("folder_selection_changed",
 198                               G_TYPE_FROM_CLASS (gobject_class),
 199                               G_SIGNAL_RUN_FIRST,
 200                               G_STRUCT_OFFSET (ModestFolderViewClass,
 201                                                folder_selection_changed),
 202                               NULL, NULL,
 203                               modest_marshal_VOID__POINTER_BOOLEAN,
 204                               G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_BOOLEAN);
 205 }
 206
 207
 208
 209 static void
 210 text_cell_data  (GtkTreeViewColumn *column,  GtkCellRenderer *renderer,
 211                  GtkTreeModel *tree_model,  GtkTreeIter *iter,  gpointer data)
 212 {
 213         GObject *rendobj;
 214         gchar *fname = NULL;
 215         gint unread;
 216         TnyFolderType type;
 217         GObject *instance = NULL;
 218
 219         g_return_if_fail (column);
 220         g_return_if_fail (tree_model);
 221
 222         gtk_tree_model_get (tree_model, iter,
 223                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &fname,
 224                             TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN, &unread,
 225                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 226                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &instance,
 227                             -1);
 228         rendobj = G_OBJECT(renderer);
 229
 230         if (!fname)
 231                 return;
 232
 233         if (!instance) {
 234                 g_free (fname);
 235                 return;
 236         }
 237
 238         if (type != TNY_FOLDER_TYPE_ROOT) {
 239                 if (modest_tny_folder_is_local_folder (TNY_FOLDER (instance))) {
 240                         TnyFolderType type;
 241                         type = modest_tny_folder_get_local_folder_type (TNY_FOLDER (instance));
 242                         if (type != TNY_FOLDER_TYPE_UNKNOWN) {
 243                                 g_free (fname);
 244                                 fname = g_strdup(modest_local_folder_info_get_type_display_name (type));
 245                         }
 246                 }
 247
 248                 /* Use bold font style if there are unread messages */
 249                 if (unread > 0) {
 250                         gchar *folder_title = g_strdup_printf ("%s (%d)", fname, unread);
 251                         g_object_set (rendobj,"text", folder_title,  "weight", 800, NULL);
 252                         g_free (folder_title);
 253                 } else
 254                         g_object_set (rendobj,"text", fname, "weight", 400, NULL);
 255
 256         } else {
 257                 ModestFolderViewPrivate *priv;
 258                 const gchar *account_name = NULL;
 259                 const gchar *account_id = NULL;
 260
 261                 priv =  MODEST_FOLDER_VIEW_GET_PRIVATE (data);
 262
 263                 /* If it's a server account */
 264                 account_id = tny_account_get_id (TNY_ACCOUNT (instance));
 265                 if (!strcmp (account_id, MODEST_LOCAL_FOLDERS_ACCOUNT_ID)) {
 266                         account_name = priv->local_account_name;
 267                 } else {
 268                         if (!strcmp (account_id, MODEST_MMC_ACCOUNT_ID)) {
 269                                 /* TODO: get MMC card name */
 270                         } else {
 271                                 account_name = fname;
 272                         }
 273                 }
 274
 275                 /* Use bold font style */
 276                 g_object_set (rendobj,"text", account_name, "weight", 800, NULL);
 277         }
 278
 279         g_object_unref (G_OBJECT (instance));
 280         g_free (fname);
 281 }
 282
 283
 284
 285 static void
 286 icon_cell_data  (GtkTreeViewColumn *column,  GtkCellRenderer *renderer,
 287                  GtkTreeModel *tree_model,  GtkTreeIter *iter, gpointer data)
 288 {
 289         GObject *rendobj, *instance;
 290         GdkPixbuf *pixbuf;
 291         TnyFolderType type;
 292         gchar *fname = NULL;
 293         const gchar *account_id = 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,
 301                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &instance,
 302                             -1);
 303
 304         if (!fname)
 305                 return;
 306
 307         if (!instance) {
 308                 g_free (fname);
 309                 return;
 310         }
 311
 312         if (type == TNY_FOLDER_TYPE_NORMAL || type == TNY_FOLDER_TYPE_UNKNOWN) {
 313                 type = modest_tny_folder_guess_folder_type_from_name (fname);
 314         }
 315
 316         switch (type) {
 317         case TNY_FOLDER_TYPE_ROOT:
 318                 account_id = tny_account_get_id (TNY_ACCOUNT (instance));
 319                 if (!strcmp (account_id, MODEST_LOCAL_FOLDERS_ACCOUNT_ID)) {
 320                         pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_LOCAL_FOLDERS);
 321                 } else {
 322                         if (!strcmp (account_id, MODEST_MMC_ACCOUNT_ID))
 323                                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_MMC);
 324                         else
 325                                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_ACCOUNT);
 326                 }
 327                 break;
 328         case TNY_FOLDER_TYPE_INBOX:
 329                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_INBOX);
 330                 break;
 331         case TNY_FOLDER_TYPE_OUTBOX:
 332                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_OUTBOX);
 333                 break;
 334         case TNY_FOLDER_TYPE_JUNK:
 335                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_JUNK);
 336                 break;
 337         case TNY_FOLDER_TYPE_SENT:
 338                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_SENT);
 339                 break;
 340         case TNY_FOLDER_TYPE_TRASH:
 341                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_TRASH);
 342                 break;
 343         case TNY_FOLDER_TYPE_DRAFTS:
 344                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_DRAFTS);
 345                 break;
 346         case TNY_FOLDER_TYPE_NORMAL:
 347         default:
 348                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_NORMAL);
 349                 break;
 350         }
 351         g_object_unref (G_OBJECT (instance));
 352         g_free (fname);
 353
 354         /* Set pixbuf */
 355         g_object_set (rendobj, "pixbuf", pixbuf, NULL);
 356 }
 357
 358 static void
 359 modest_folder_view_init (ModestFolderView *obj)
 360 {
 361         ModestFolderViewPrivate *priv;
 362         GtkTreeViewColumn *column;
 363         GtkCellRenderer *renderer;
 364         GtkTreeSelection *sel;
 365         ModestConf *conf;
 366
 367         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(obj);
 368
 369         priv->timer_expander = 0;
 370         priv->account_store  = NULL;
 371         priv->cur_folder     = NULL;
 372         priv->cur_row        = NULL;
 373         priv->query          = NULL;
 374
 375         /* Initialize the local account name */
 376         conf = modest_runtime_get_conf();
 377         priv->local_account_name = modest_conf_get_string (conf, MODEST_CONF_DEVICE_NAME, NULL);
 378
 379         /* Build treeview */
 380         column = gtk_tree_view_column_new ();
 381
 382         renderer = gtk_cell_renderer_pixbuf_new();
 383         gtk_tree_view_column_pack_start (column, renderer, FALSE);
 384         gtk_tree_view_column_set_cell_data_func(column, renderer,
 385                                                 icon_cell_data, obj, NULL);
 386
 387         renderer = gtk_cell_renderer_text_new();
 388         gtk_tree_view_column_pack_start (column, renderer, FALSE);
 389         gtk_tree_view_column_set_cell_data_func(column, renderer,
 390                                                 text_cell_data, obj, NULL);
 391
 392         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(obj));
 393         gtk_tree_selection_set_mode (sel, GTK_SELECTION_SINGLE);
 394
 395         gtk_tree_view_column_set_spacing (column, 2);
 396         gtk_tree_view_column_set_resizable (column, TRUE);
 397         gtk_tree_view_column_set_fixed_width (column, TRUE);
 398         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(obj), FALSE);
 399         gtk_tree_view_set_enable_search     (GTK_TREE_VIEW(obj), FALSE);
 400
 401         gtk_tree_view_append_column (GTK_TREE_VIEW(obj),column);
 402
 403         /* Setup drag and drop */
 404         setup_drag_and_drop (GTK_TREE_VIEW(obj));
 405
 406         /* Connect signals */
 407         g_signal_connect (G_OBJECT (obj),
 408                           "key-press-event",
 409                           G_CALLBACK (on_key_pressed), NULL);
 410
 411         /*
 412          * Track changes in the local account name (in the device it
 413          * will be the device name)
 414          */
 415         g_signal_connect (G_OBJECT(conf),
 416                           "key_changed",
 417                           G_CALLBACK(on_configuration_key_changed), obj);
 418
 419 }
 420
 421 static void
 422 tny_account_store_view_init (gpointer g, gpointer iface_data)
 423 {
 424         TnyAccountStoreViewIface *klass = (TnyAccountStoreViewIface *)g;
 425
 426         klass->set_account_store_func = modest_folder_view_set_account_store;
 427
 428         return;
 429 }
 430
 431 static void
 432 modest_folder_view_finalize (GObject *obj)
 433 {
 434         ModestFolderViewPrivate *priv;
 435         GtkTreeSelection    *sel;
 436
 437         g_return_if_fail (obj);
 438
 439         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(obj);
 440
 441         if (priv->timer_expander != 0) {
 442                 g_source_remove (priv->timer_expander);
 443                 priv->timer_expander = 0;
 444         }
 445
 446         if (priv->account_store) {
 447                 g_signal_handler_disconnect (G_OBJECT(priv->account_store),
 448                                              priv->account_update_signal);
 449                 g_signal_handler_disconnect (G_OBJECT(priv->account_store),
 450                                              priv->accounts_reloaded_signal);
 451                 g_object_unref (G_OBJECT(priv->account_store));
 452                 priv->account_store = NULL;
 453         }
 454
 455         if (priv->query) {
 456                 g_object_unref (G_OBJECT (priv->query));
 457                 priv->query = NULL;
 458         }
 459
 460         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(obj));
 461         if (sel)
 462                 g_signal_handler_disconnect (G_OBJECT(sel), priv->changed_signal);
 463
 464         g_free (priv->local_account_name);
 465
 466         G_OBJECT_CLASS(parent_class)->finalize (obj);
 467 }
 468
 469
 470 static void
 471 modest_folder_view_set_account_store (TnyAccountStoreView *self, TnyAccountStore *account_store)
 472 {
 473         ModestFolderViewPrivate *priv;
 474         TnyDevice *device;
 475
 476         g_return_if_fail (MODEST_IS_FOLDER_VIEW (self));
 477         g_return_if_fail (TNY_IS_ACCOUNT_STORE (account_store));
 478
 479         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
 480         device = tny_account_store_get_device (account_store);
 481
 482         if (G_UNLIKELY (priv->account_store)) {
 483
 484                 if (g_signal_handler_is_connected (G_OBJECT (priv->account_store),
 485                                                    priv->account_update_signal))
 486                         g_signal_handler_disconnect (G_OBJECT (priv->account_store),
 487                                                      priv->account_update_signal);
 488                 if (g_signal_handler_is_connected (G_OBJECT (priv->account_store),
 489                                                    priv->accounts_reloaded_signal))
 490                         g_signal_handler_disconnect (G_OBJECT (priv->account_store),
 491                                                      priv->accounts_reloaded_signal);
 492
 493                 g_object_unref (G_OBJECT (priv->account_store));
 494         }
 495
 496         priv->account_store = g_object_ref (G_OBJECT (account_store));
 497
 498         priv->account_update_signal =
 499                 g_signal_connect (G_OBJECT(account_store), "account_update",
 500                                   G_CALLBACK (on_account_update), self);
 501
 502         priv->accounts_reloaded_signal =
 503                 g_signal_connect (G_OBJECT(account_store), "accounts_reloaded",
 504                                   G_CALLBACK (on_accounts_reloaded), self);
 505
 506         if (!update_model (MODEST_FOLDER_VIEW (self),
 507                            MODEST_TNY_ACCOUNT_STORE (priv->account_store)))
 508                 g_printerr ("modest: failed to update model\n");
 509
 510         g_object_unref (G_OBJECT (device));
 511 }
 512
 513 static void
 514 on_account_update (TnyAccountStore *account_store, const gchar *account,
 515                    gpointer user_data)
 516 {
 517         if (!update_model (MODEST_FOLDER_VIEW(user_data),
 518                            MODEST_TNY_ACCOUNT_STORE(account_store)))
 519                 g_printerr ("modest: failed to update model for changes in '%s'",
 520                             account);
 521 }
 522
 523 static void
 524 on_accounts_reloaded   (TnyAccountStore *account_store,
 525                         gpointer user_data)
 526 {
 527         update_model (MODEST_FOLDER_VIEW (user_data),
 528                       MODEST_TNY_ACCOUNT_STORE(account_store));
 529 }
 530
 531 void
 532 modest_folder_view_set_title (ModestFolderView *self, const gchar *title)
 533 {
 534         GtkTreeViewColumn *col;
 535
 536         g_return_if_fail (self);
 537
 538         col = gtk_tree_view_get_column (GTK_TREE_VIEW(self), 0);
 539         if (!col) {
 540                 g_printerr ("modest: failed get column for title\n");
 541                 return;
 542         }
 543
 544         gtk_tree_view_column_set_title (col, title);
 545         gtk_tree_view_set_headers_visible (GTK_TREE_VIEW(self),
 546                                            title != NULL);
 547 }
 548
 549 GtkWidget*
 550 modest_folder_view_new (TnyFolderStoreQuery *query)
 551 {
 552         GObject *self;
 553         ModestFolderViewPrivate *priv;
 554         GtkTreeSelection *sel;
 555
 556         self = G_OBJECT (g_object_new (MODEST_TYPE_FOLDER_VIEW, NULL));
 557         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
 558
 559         priv->query = g_object_ref (query);
 560
 561         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 562         priv->changed_signal = g_signal_connect (sel, "changed",
 563                                                  G_CALLBACK (on_selection_changed), self);
 564         return GTK_WIDGET(self);
 565 }
 566
 567 /* this feels dirty; any other way to expand all the root items? */
 568 static void
 569 expand_root_items (ModestFolderView *self)
 570 {
 571         GtkTreePath *path;
 572         path = gtk_tree_path_new_first ();
 573
 574         /* all folders should have child items, so.. */
 575         while (gtk_tree_view_expand_row (GTK_TREE_VIEW(self), path, FALSE))
 576                 gtk_tree_path_next (path);
 577
 578         gtk_tree_path_free (path);
 579 }
 580
 581 static gboolean
 582 update_model (ModestFolderView *self, ModestTnyAccountStore *account_store)
 583 {
 584         ModestFolderViewPrivate *priv;
 585
 586         TnyList          *account_list;
 587         GtkTreeModel     *model, *sortable;
 588
 589         g_return_val_if_fail (account_store, FALSE);
 590
 591         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 592
 593         /* Notify that there is no folder selected*/
 594         g_signal_emit (G_OBJECT(self),
 595                        signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
 596                        NULL, TRUE);
 597
 598         /* FIXME: the local accounts are not shown when the query
 599            selects only the subscribed folders. */
 600 /*      model        = tny_gtk_folder_store_tree_model_new (TRUE, priv->query); */
 601         model        = tny_gtk_folder_store_tree_model_new (TRUE, NULL);
 602         account_list = TNY_LIST(model);
 603
 604         tny_account_store_get_accounts (TNY_ACCOUNT_STORE(account_store),
 605                                         account_list,
 606                                         TNY_ACCOUNT_STORE_STORE_ACCOUNTS);
 607         if (account_list) {
 608                 sortable = gtk_tree_model_sort_new_with_model (model);
 609                 gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 610                                                       TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 611                                                       GTK_SORT_ASCENDING);
 612                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE (sortable),
 613                                                  TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 614                                                  cmp_rows, NULL, NULL);
 615
 616                 /* Set new model */
 617                 gtk_tree_view_set_model (GTK_TREE_VIEW(self), sortable);
 618                 expand_root_items (self); /* expand all account folders */
 619                 g_object_unref (account_list);
 620         }
 621
 622         return TRUE;
 623 }
 624
 625
 626 static void
 627 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
 628 {
 629         GtkTreeModel            *model_sort, *model;
 630         TnyFolder               *folder = NULL;
 631         GtkTreeIter             iter, iter_sort;
 632         GtkTreePath            *path;
 633         ModestFolderView        *tree_view;
 634         ModestFolderViewPrivate *priv;
 635         gint                    type;
 636
 637         g_return_if_fail (sel);
 638         g_return_if_fail (user_data);
 639
 640         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(user_data);
 641         priv->cur_selection = sel;
 642
 643         /* folder was _un_selected if true */
 644         if (!gtk_tree_selection_get_selected (sel, &model_sort, &iter_sort)) {
 645                 if (priv->cur_folder)
 646                         g_object_unref (priv->cur_folder);
 647                 if (priv->cur_row)
 648                         gtk_tree_row_reference_free (priv->cur_row);
 649                 priv->cur_folder = NULL;
 650                 priv->cur_row = NULL;
 651                 return;
 652         }
 653
 654         model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
 655         gtk_tree_model_sort_convert_iter_to_child_iter (GTK_TREE_MODEL_SORT (model_sort),
 656                                                         &iter,
 657                                                         &iter_sort);
 658
 659         tree_view = MODEST_FOLDER_VIEW (user_data);
 660
 661         gtk_tree_model_get (model, &iter,
 662                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 663                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder,
 664                             -1);
 665
 666         /* If the folder is the same do not notify */
 667         if ((type == TNY_FOLDER_TYPE_ROOT) || (priv->cur_folder == folder)) {
 668                 g_object_unref (folder);
 669                 return;
 670         }
 671
 672         /* Current folder was unselected */
 673         if (priv->cur_folder) {
 674                 g_signal_emit (G_OBJECT(tree_view), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
 675                                priv->cur_folder, FALSE);
 676                 g_object_unref (priv->cur_folder);
 677         }
 678
 679         if (priv->cur_row)
 680                 gtk_tree_row_reference_free (priv->cur_row);
 681
 682         /* New current references */
 683         path = gtk_tree_model_get_path (model_sort, &iter_sort);
 684         priv->cur_folder = folder;
 685         priv->cur_row = gtk_tree_row_reference_new (model_sort, path);
 686
 687         /* Frees */
 688         gtk_tree_path_free (path);
 689
 690         /* New folder has been selected */
 691         g_signal_emit (G_OBJECT(tree_view),
 692                        signals[FOLDER_SELECTION_CHANGED_SIGNAL],
 693                        0, folder, TRUE);
 694 }
 695
 696 TnyFolder *
 697 modest_folder_view_get_selected (ModestFolderView *self)
 698 {
 699         ModestFolderViewPrivate *priv;
 700
 701         g_return_val_if_fail (self, NULL);
 702
 703         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 704         if (priv->cur_folder)
 705                 g_object_ref (priv->cur_folder);
 706
 707         return priv->cur_folder;
 708 }
 709
 710 static gint
 711 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
 712           gpointer user_data)
 713 {
 714         gint cmp;
 715         gchar         *name1, *name2;
 716         TnyFolderType type;
 717         TnyFolder     *folder1, *folder2;
 718
 719         gtk_tree_model_get (tree_model, iter1,
 720                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &name1,
 721                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 722                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder1,
 723                             -1);
 724         gtk_tree_model_get (tree_model, iter2,
 725                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &name2,
 726                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder2,
 727                             -1);
 728
 729         /* local_folders should be the last one */
 730         if (type == TNY_FOLDER_TYPE_ROOT) {
 731                 /* the account name is also the name of the root folder
 732                  * in case of local folders */
 733                 if (name1 && strcmp (name1, MODEST_LOCAL_FOLDERS_ACCOUNT_NAME) == 0)
 734                         cmp = +1;
 735                 else if (name2 && strcmp (name2, MODEST_LOCAL_FOLDERS_ACCOUNT_NAME) == 0)
 736                         cmp = -1;
 737                 else
 738                         cmp = modest_text_utils_utf8_strcmp (name1, name2, TRUE);
 739         } else
 740                 cmp = modest_text_utils_utf8_strcmp (name1, name2, TRUE);
 741
 742
 743         if (folder1)
 744                 g_object_unref(G_OBJECT(folder1));
 745         if (folder2)
 746                 g_object_unref(G_OBJECT(folder2));
 747
 748         g_free (name1);
 749         g_free (name2);
 750
 751         return cmp;
 752 }
 753
 754 /*****************************************************************************/
 755 /*                        DRAG and DROP stuff                                */
 756 /*****************************************************************************/
 757
 758 /*
 759  * This function fills the #GtkSelectionData with the row and the
 760  * model that has been dragged. It's called when this widget is a
 761  * source for dnd after the event drop happened
 762  */
 763 static void
 764 on_drag_data_get (GtkWidget *widget,
 765                   GdkDragContext *context,
 766                   GtkSelectionData *selection_data,
 767                   guint info,
 768                   guint time,
 769                   gpointer data)
 770 {
 771         GtkTreeSelection *selection;
 772         GtkTreeModel *model_sort, *model;
 773         GtkTreeIter iter;
 774         GtkTreePath *source_row_sort;
 775         GtkTreePath *source_row;
 776
 777         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (widget));
 778         gtk_tree_selection_get_selected (selection, &model_sort, &iter);
 779         source_row_sort = gtk_tree_model_get_path (model_sort, &iter);
 780
 781         /* Get the unsorted path and model */
 782         model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
 783         source_row = gtk_tree_model_sort_convert_path_to_child_path (GTK_TREE_MODEL_SORT (model_sort),
 784                                                                      source_row_sort);
 785
 786         gtk_tree_set_row_drag_data (selection_data,
 787                                     model,
 788                                     source_row);
 789
 790         gtk_tree_path_free (source_row_sort);
 791         gtk_tree_path_free (source_row);
 792 }
 793
 794 typedef struct _DndHelper {
 795         gboolean delete_source;
 796         GtkTreePath *source_row;
 797         GdkDragContext *context;
 798         guint time;
 799 } DndHelper;
 800
 801
 802 /*
 803  * This function is the callback of the
 804  * modest_mail_operation_xfer_msg() and
 805  * modest_mail_operation_xfer_folder() calls. We check here if the
 806  * message/folder was correctly asynchronously transferred. The reason
 807  * to use the same callback is that the code is the same, it only has
 808  * to check that the operation went fine and then finalize the drag
 809  * and drop action
 810  */
 811 static void
 812 on_progress_changed (ModestMailOperation *mail_op, gpointer user_data)
 813 {
 814         gboolean success;
 815         DndHelper *helper;
 816
 817         helper = (DndHelper *) user_data;
 818
 819         if (!modest_mail_operation_is_finished (mail_op))
 820                 return;
 821
 822         if (modest_mail_operation_get_status (mail_op) ==
 823             MODEST_MAIL_OPERATION_STATUS_SUCCESS) {
 824                 success = TRUE;
 825         } else {
 826                 success = FALSE;
 827         }
 828
 829         /* Notify the drag source. Never call delete, the monitor will
 830            do the job if needed */
 831         gtk_drag_finish (helper->context, success, FALSE, helper->time);
 832
 833         /* Free the helper */
 834         gtk_tree_path_free (helper->source_row);
 835         g_slice_free (DndHelper, helper);
 836 }
 837
 838 /*
 839  * This function is used by drag_data_received_cb to manage drag and
 840  * drop of a header, i.e, and drag from the header view to the folder
 841  * view.
 842  */
 843 static void
 844 drag_and_drop_from_header_view (GtkTreeModel *source_model,
 845                                 GtkTreeModel *dest_model,
 846                                 GtkTreePath  *dest_row,
 847                                 DndHelper    *helper)
 848 {
 849         TnyHeader *header;
 850         TnyFolder *folder;
 851         ModestMailOperation *mail_op;
 852         GtkTreeIter source_iter, dest_iter;
 853
 854         /* Get header */
 855         gtk_tree_model_get_iter (source_model, &source_iter, helper->source_row);
 856         gtk_tree_model_get (source_model, &source_iter,
 857                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 858                             &header, -1);
 859
 860         /* Get Folder */
 861         gtk_tree_model_get_iter (dest_model, &dest_iter, dest_row);
 862         gtk_tree_model_get (dest_model, &dest_iter,
 863                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN,
 864                             &folder, -1);
 865
 866         /* Transfer message */
 867         mail_op = modest_mail_operation_new ();
 868         modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
 869                                          mail_op);
 870         g_signal_connect (G_OBJECT (mail_op), "progress-changed",
 871                           G_CALLBACK (on_progress_changed), helper);
 872
 873         modest_mail_operation_xfer_msg (mail_op, header, folder, helper->delete_source);
 874
 875         /* Frees */
 876         g_object_unref (G_OBJECT (mail_op));
 877         g_object_unref (G_OBJECT (header));
 878         g_object_unref (G_OBJECT (folder));
 879 }
 880
 881 /*
 882  * This function is used by drag_data_received_cb to manage drag and
 883  * drop of a folder, i.e, and drag from the folder view to the same
 884  * folder view.
 885  */
 886 static void
 887 drag_and_drop_from_folder_view (GtkTreeModel     *source_model,
 888                                 GtkTreeModel     *dest_model,
 889                                 GtkTreePath      *dest_row,
 890                                 GtkSelectionData *selection_data,
 891                                 DndHelper        *helper)
 892 {
 893         ModestMailOperation *mail_op;
 894         GtkTreeIter parent_iter, iter;
 895         TnyFolderStore *parent_folder;
 896         TnyFolder *folder;
 897
 898         /* Check if the drag is possible */
 899         if (!gtk_tree_path_compare (helper->source_row, dest_row) ||
 900             !gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (dest_model),
 901                                                    dest_row,
 902                                                    selection_data)) {
 903
 904                 gtk_drag_finish (helper->context, FALSE, FALSE, helper->time);
 905                 gtk_tree_path_free (helper->source_row);
 906                 g_slice_free (DndHelper, helper);
 907                 return;
 908         }
 909
 910         /* Get data */
 911         gtk_tree_model_get_iter (source_model, &parent_iter, dest_row);
 912         gtk_tree_model_get_iter (source_model, &iter, helper->source_row);
 913         gtk_tree_model_get (source_model, &parent_iter,
 914                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN,
 915                             &parent_folder, -1);
 916         gtk_tree_model_get (source_model, &iter,
 917                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN,
 918                             &folder, -1);
 919
 920         /* Do the mail operation */
 921         mail_op = modest_mail_operation_new ();
 922         modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
 923                                          mail_op);
 924         g_signal_connect (G_OBJECT (mail_op), "progress-changed",
 925                           G_CALLBACK (on_progress_changed), helper);
 926
 927         modest_mail_operation_xfer_folder (mail_op,
 928                                            folder,
 929                                            parent_folder,
 930                                            helper->delete_source);
 931
 932         /* Frees */
 933         g_object_unref (G_OBJECT (parent_folder));
 934         g_object_unref (G_OBJECT (folder));
 935         g_object_unref (G_OBJECT (mail_op));
 936 }
 937
 938 /*
 939  * This function receives the data set by the "drag-data-get" signal
 940  * handler. This information comes within the #GtkSelectionData. This
 941  * function will manage both the drags of folders of the treeview and
 942  * drags of headers of the header view widget.
 943  */
 944 static void
 945 on_drag_data_received (GtkWidget *widget,
 946                        GdkDragContext *context,
 947                        gint x,
 948                        gint y,
 949                        GtkSelectionData *selection_data,
 950                        guint target_type,
 951                        guint time,
 952                        gpointer data)
 953 {
 954         GtkWidget *source_widget;
 955         GtkTreeModel *model_sort, *dest_model, *source_model;
 956         GtkTreePath *source_row, *dest_row, *child_dest_row;
 957         GtkTreeViewDropPosition pos;
 958         gboolean success = FALSE, delete_source = FALSE;
 959         DndHelper *helper;
 960
 961         /* Do not allow further process */
 962         g_signal_stop_emission_by_name (widget, "drag-data-received");
 963
 964         /* Get the action */
 965         if (context->action == GDK_ACTION_MOVE)
 966                 delete_source = TRUE;
 967
 968         /* Check if the get_data failed */
 969         if (selection_data == NULL || selection_data->length < 0)
 970                 gtk_drag_finish (context, success, FALSE, time);
 971
 972         /* Get the models */
 973         source_widget = gtk_drag_get_source_widget (context);
 974         gtk_tree_get_row_drag_data (selection_data,
 975                                     &source_model,
 976                                     &source_row);
 977
 978         model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));
 979         /* Select the destination model */
 980         if (source_widget == widget) {
 981                 dest_model = source_model;
 982         } else {
 983                 dest_model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
 984         }
 985
 986         /* Get the path to the destination row. Can not call
 987            gtk_tree_view_get_drag_dest_row() because the source row
 988            is not selected anymore */
 989         gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget), x, y,
 990                                            &dest_row, &pos);
 991
 992         /* Only allow drops IN other rows */
 993         if (!dest_row || pos == GTK_TREE_VIEW_DROP_BEFORE || pos == GTK_TREE_VIEW_DROP_AFTER)
 994                 gtk_drag_finish (context, success, FALSE, time);
 995
 996         /* Create the helper */
 997         helper = g_slice_new0 (DndHelper);
 998         helper->delete_source = delete_source;
 999         helper->source_row = gtk_tree_path_copy (source_row);
1000         helper->context = context;
1001         helper->time = time;
1002
1003         /* Get path from the unsorted model */
1004         child_dest_row =
1005                 gtk_tree_model_sort_convert_path_to_child_path (GTK_TREE_MODEL_SORT (model_sort),
1006                                                                 dest_row);
1007         gtk_tree_path_free (dest_row);
1008
1009         /* Drags from the header view */
1010         if (source_widget != widget) {
1011
1012                 drag_and_drop_from_header_view (source_model,
1013                                                 dest_model,
1014                                                 child_dest_row,
1015                                                 helper);
1016         } else {
1017
1018
1019                 drag_and_drop_from_folder_view (source_model,
1020                                                 dest_model,
1021                                                 child_dest_row,
1022                                                 selection_data,
1023                                                 helper);
1024         }
1025
1026         /* Frees */
1027         gtk_tree_path_free (source_row);
1028         gtk_tree_path_free (child_dest_row);
1029 }
1030
1031 /*
1032  * We define a "drag-drop" signal handler because we do not want to
1033  * use the default one, because the default one always calls
1034  * gtk_drag_finish and we prefer to do it in the "drag-data-received"
1035  * signal handler, because there we have all the information available
1036  * to know if the dnd was a success or not.
1037  */
1038 static gboolean
1039 drag_drop_cb (GtkWidget      *widget,
1040               GdkDragContext *context,
1041               gint            x,
1042               gint            y,
1043               guint           time,
1044               gpointer        user_data)
1045 {
1046         gpointer target;
1047
1048         if (!context->targets)
1049                 return FALSE;
1050
1051         /* Check if we're dragging a folder row */
1052         target = gtk_drag_dest_find_target (widget, context, NULL);
1053
1054         /* Request the data from the source. */
1055         gtk_drag_get_data(widget, context, target, time);
1056
1057     return TRUE;
1058 }
1059
1060 /*
1061  * This function expands a node of a tree view if it's not expanded
1062  * yet. Not sure why it needs the threads stuff, but gtk+`example code
1063  * does that, so that's why they're here.
1064  */
1065 static gint
1066 expand_row_timeout (gpointer data)
1067 {
1068         GtkTreeView *tree_view = data;
1069         GtkTreePath *dest_path = NULL;
1070         GtkTreeViewDropPosition pos;
1071         gboolean result = FALSE;
1072
1073         GDK_THREADS_ENTER ();
1074
1075         gtk_tree_view_get_drag_dest_row (tree_view,
1076                                          &dest_path,
1077                                          &pos);
1078
1079         if (dest_path &&
1080             (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
1081              pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)) {
1082                 gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
1083                 gtk_tree_path_free (dest_path);
1084         }
1085         else {
1086                 if (dest_path)
1087                         gtk_tree_path_free (dest_path);
1088
1089                 result = TRUE;
1090         }
1091
1092         GDK_THREADS_LEAVE ();
1093
1094         return result;
1095 }
1096
1097 /*
1098  * This function is called whenever the pointer is moved over a widget
1099  * while dragging some data. It installs a timeout that will expand a
1100  * node of the treeview if not expanded yet. This function also calls
1101  * gdk_drag_status in order to set the suggested action that will be
1102  * used by the "drag-data-received" signal handler to know if we
1103  * should do a move or just a copy of the data.
1104  */
1105 static gboolean
1106 on_drag_motion (GtkWidget      *widget,
1107                 GdkDragContext *context,
1108                 gint            x,
1109                 gint            y,
1110                 guint           time,
1111                 gpointer        user_data)
1112 {
1113         GtkTreeViewDropPosition pos;
1114         GtkTreePath *dest_row;
1115         ModestFolderViewPrivate *priv;
1116         GdkDragAction suggested_action;
1117         gboolean valid_location = FALSE;
1118
1119         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (widget);
1120
1121         if (priv->timer_expander != 0) {
1122                 g_source_remove (priv->timer_expander);
1123                 priv->timer_expander = 0;
1124         }
1125
1126         gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget),
1127                                            x, y,
1128                                            &dest_row,
1129                                            &pos);
1130
1131         /* Do not allow drops between folders */
1132         if (!dest_row ||
1133             pos == GTK_TREE_VIEW_DROP_BEFORE ||
1134             pos == GTK_TREE_VIEW_DROP_AFTER) {
1135                 gtk_tree_view_set_drag_dest_row(GTK_TREE_VIEW (widget), NULL, 0);
1136                 gdk_drag_status(context, 0, time);
1137                 valid_location = FALSE;
1138                 goto out;
1139         } else {
1140                 valid_location = TRUE;
1141         }
1142
1143         /* Expand the selected row after 1/2 second */
1144         if (!gtk_tree_view_row_expanded (GTK_TREE_VIEW (widget), dest_row)) {
1145                 gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), dest_row, pos);
1146                 priv->timer_expander = g_timeout_add (500, expand_row_timeout, widget);
1147         }
1148         gtk_tree_path_free (dest_row);
1149
1150         /* Select the desired action. By default we pick MOVE */
1151         suggested_action = GDK_ACTION_MOVE;
1152
1153         if (context->actions == GDK_ACTION_COPY)
1154             gdk_drag_status(context, GDK_ACTION_COPY, time);
1155         else if (context->actions == GDK_ACTION_MOVE)
1156             gdk_drag_status(context, GDK_ACTION_MOVE, time);
1157         else if (context->actions & suggested_action)
1158             gdk_drag_status(context, suggested_action, time);
1159         else
1160             gdk_drag_status(context, GDK_ACTION_DEFAULT, time);
1161
1162  out:
1163         g_signal_stop_emission_by_name (widget, "drag-motion");
1164         return valid_location;
1165 }
1166
1167
1168 /* Folder view drag types */
1169 const GtkTargetEntry folder_view_drag_types[] =
1170 {
1171         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, MODEST_FOLDER_ROW },
1172         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP,    MODEST_HEADER_ROW }
1173 };
1174
1175 /*
1176  * This function sets the treeview as a source and a target for dnd
1177  * events. It also connects all the requirede signals.
1178  */
1179 static void
1180 setup_drag_and_drop (GtkTreeView *self)
1181 {
1182         /* Set up the folder view as a dnd destination. Set only the
1183            highlight flag, otherwise gtk will have a different
1184            behaviour */
1185         gtk_drag_dest_set (GTK_WIDGET (self),
1186                            GTK_DEST_DEFAULT_HIGHLIGHT,
1187                            folder_view_drag_types,
1188                            G_N_ELEMENTS (folder_view_drag_types),
1189                            GDK_ACTION_MOVE | GDK_ACTION_COPY);
1190
1191         g_signal_connect (G_OBJECT (self),
1192                           "drag_data_received",
1193                           G_CALLBACK (on_drag_data_received),
1194                           NULL);
1195
1196
1197         /* Set up the treeview as a dnd source */
1198         gtk_drag_source_set (GTK_WIDGET (self),
1199                              GDK_BUTTON1_MASK,
1200                              folder_view_drag_types,
1201                              G_N_ELEMENTS (folder_view_drag_types),
1202                              GDK_ACTION_MOVE | GDK_ACTION_COPY);
1203
1204         g_signal_connect (G_OBJECT (self),
1205                           "drag_motion",
1206                           G_CALLBACK (on_drag_motion),
1207                           NULL);
1208
1209         g_signal_connect (G_OBJECT (self),
1210                           "drag_data_get",
1211                           G_CALLBACK (on_drag_data_get),
1212                           NULL);
1213
1214         g_signal_connect (G_OBJECT (self),
1215                           "drag_drop",
1216                           G_CALLBACK (drag_drop_cb),
1217                           NULL);
1218 }
1219
1220 /*
1221  * This function manages the navigation through the folders using the
1222  * keyboard or the hardware keys in the device
1223  */
1224 static gboolean
1225 on_key_pressed (GtkWidget *self,
1226                 GdkEventKey *event,
1227                 gpointer user_data)
1228 {
1229         GtkTreeSelection *selection;
1230         GtkTreeIter iter;
1231         GtkTreeModel *model;
1232         gboolean retval = FALSE;
1233
1234         /* Up and Down are automatically managed by the treeview */
1235         if (event->keyval == GDK_Return) {
1236                 /* Expand/Collapse the selected row */
1237                 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
1238                 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
1239                         GtkTreePath *path;
1240
1241                         path = gtk_tree_model_get_path (model, &iter);
1242
1243                         if (gtk_tree_view_row_expanded (GTK_TREE_VIEW (self), path))
1244                                 gtk_tree_view_collapse_row (GTK_TREE_VIEW (self), path);
1245                         else
1246                                 gtk_tree_view_expand_row (GTK_TREE_VIEW (self), path, FALSE);
1247                         gtk_tree_path_free (path);
1248                 }
1249                 /* No further processing */
1250                 retval = TRUE;
1251         }
1252
1253         return retval;
1254 }
1255
1256 /*
1257  * We listen to the changes in the local folder account name key,
1258  * because we want to show the right name in the view. The local
1259  * folder account name corresponds to the device name in the Maemo
1260  * version. We do this because we do not want to query gconf on each
1261  * tree view refresh. It's better to cache it and change whenever
1262  * necessary.
1263  */
1264 static void
1265 on_configuration_key_changed (ModestConf* conf,
1266                               const gchar *key,
1267                               ModestConfEvent event,
1268                               ModestFolderView *self)
1269 {
1270         ModestFolderViewPrivate *priv;
1271
1272         if (!key || strcmp (key, MODEST_CONF_DEVICE_NAME))
1273                 return;
1274
1275         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
1276
1277         g_free (priv->local_account_name);
1278
1279         if (event == MODEST_CONF_EVENT_KEY_UNSET)
1280                 priv->local_account_name = g_strdup (MODEST_LOCAL_FOLDERS_DEFAULT_DISPLAY_NAME);
1281         else
1282                 priv->local_account_name = modest_conf_get_string (modest_runtime_get_conf(),
1283                                                                    MODEST_CONF_DEVICE_NAME, NULL);
1284
1285         /* Force a redraw */
1286 #if GTK_CHECK_VERSION(2, 8, 0) /* gtk_tree_view_column_queue_resize is only available in GTK+ 2.8 */
1287         GtkTreeViewColumn * tree_column = gtk_tree_view_get_column (GTK_TREE_VIEW (self),
1288                                                 TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN);
1289         gtk_tree_view_column_queue_resize (tree_column);
1290 #endif
1291 }