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 #include <gdk/gdkkeysyms.h>
  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         FOLDER_DISPLAY_NAME_CHANGED_SIGNAL,
 121         LAST_SIGNAL
 122 };
 123
 124 typedef struct _ModestFolderViewPrivate ModestFolderViewPrivate;
 125 struct _ModestFolderViewPrivate {
 126         TnyAccountStore     *account_store;
 127         TnyFolderStore      *cur_folder_store;
 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          * This signal is emitted whenever the currently selected
 208          * folder display name is computed. Note that the name could
 209          * be different to the folder name, because we could append
 210          * the unread messages count to the folder name to build the
 211          * folder display name
 212          */
 213         signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL] =
 214                 g_signal_new ("folder-display-name-changed",
 215                               G_TYPE_FROM_CLASS (gobject_class),
 216                               G_SIGNAL_RUN_FIRST,
 217                               G_STRUCT_OFFSET (ModestFolderViewClass,
 218                                                folder_display_name_changed),
 219                               NULL, NULL,
 220                               g_cclosure_marshal_VOID__STRING,
 221                               G_TYPE_NONE, 1, G_TYPE_STRING);
 222 }
 223
 224
 225
 226 static void
 227 text_cell_data  (GtkTreeViewColumn *column,  GtkCellRenderer *renderer,
 228                  GtkTreeModel *tree_model,  GtkTreeIter *iter,  gpointer data)
 229 {
 230         ModestFolderViewPrivate *priv;
 231         GObject *rendobj;
 232         gchar *fname = NULL;
 233         gint unread, all;
 234         TnyFolderType type;
 235         GObject *instance = NULL;
 236
 237         g_return_if_fail (column);
 238         g_return_if_fail (tree_model);
 239
 240         gtk_tree_model_get (tree_model, iter,
 241                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &fname,
 242                             TNY_GTK_FOLDER_STORE_TREE_MODEL_ALL_COLUMN, &all,
 243                             TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN, &unread,
 244                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 245                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &instance,
 246                             -1);
 247         rendobj = G_OBJECT(renderer);
 248
 249         if (!fname)
 250                 return;
 251
 252         if (!instance) {
 253                 g_free (fname);
 254                 return;
 255         }
 256
 257
 258         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE (data);
 259
 260         if (type != TNY_FOLDER_TYPE_ROOT) {
 261                 gint number;
 262
 263                 if (modest_tny_folder_is_local_folder (TNY_FOLDER (instance))) {
 264                         TnyFolderType type;
 265                         type = modest_tny_folder_get_local_folder_type (TNY_FOLDER (instance));
 266                         if (type != TNY_FOLDER_TYPE_UNKNOWN) {
 267                                 g_free (fname);
 268                                 fname = g_strdup(modest_local_folder_info_get_type_display_name (type));
 269                         }
 270                 }
 271
 272                 /* Select the number to show */
 273                 if ((type == TNY_FOLDER_TYPE_DRAFTS) || (type == TNY_FOLDER_TYPE_OUTBOX))
 274                         number = all;
 275                 else
 276                         number = unread;
 277
 278                 /* Use bold font style if there are unread messages */
 279                 if (unread > 0) {
 280                         gchar *folder_title = g_strdup_printf ("%s (%d)", fname, unread);
 281                         g_object_set (rendobj,"text", folder_title,  "weight", 800, NULL);
 282                         if (G_OBJECT (priv->cur_folder_store) == instance)
 283                                 g_signal_emit (G_OBJECT(data),
 284                                                signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL], 0,
 285                                                folder_title);
 286                         g_free (folder_title);
 287                 } else {
 288                         g_object_set (rendobj,"text", fname, "weight", 400, NULL);
 289                         if (G_OBJECT (priv->cur_folder_store) == instance)
 290                                 g_signal_emit (G_OBJECT(data),
 291                                                signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL], 0,
 292                                                fname);
 293                 }
 294
 295         } else {
 296                 const gchar *account_name = NULL;
 297                 const gchar *account_id = NULL;
 298
 299                 /* If it's a server account */
 300                 account_id = tny_account_get_id (TNY_ACCOUNT (instance));
 301                 if (!strcmp (account_id, MODEST_LOCAL_FOLDERS_ACCOUNT_ID)) {
 302                         account_name = priv->local_account_name;
 303                 } else {
 304                         if (!strcmp (account_id, MODEST_MMC_ACCOUNT_ID)) {
 305                                 /* TODO: get MMC card name */
 306                         } else {
 307                                 account_name = fname;
 308                         }
 309                 }
 310
 311                 /* Notify display name observers */
 312                 if (G_OBJECT (priv->cur_folder_store) == instance)
 313                         g_signal_emit (G_OBJECT(data),
 314                                        signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL], 0,
 315                                        account_name);
 316
 317                 /* Use bold font style */
 318                 g_object_set (rendobj,"text", account_name, "weight", 800, NULL);
 319         }
 320
 321         g_object_unref (G_OBJECT (instance));
 322         g_free (fname);
 323 }
 324
 325
 326
 327 static void
 328 icon_cell_data  (GtkTreeViewColumn *column,  GtkCellRenderer *renderer,
 329                  GtkTreeModel *tree_model,  GtkTreeIter *iter, gpointer data)
 330 {
 331         GObject *rendobj, *instance;
 332         GdkPixbuf *pixbuf;
 333         TnyFolderType type;
 334         gchar *fname = NULL;
 335         const gchar *account_id = NULL;
 336         gint unread;
 337
 338         rendobj = G_OBJECT(renderer);
 339         gtk_tree_model_get (tree_model, iter,
 340                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 341                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &fname,
 342                             TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN, &unread,
 343                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &instance,
 344                             -1);
 345
 346         if (!fname)
 347                 return;
 348
 349         if (!instance) {
 350                 g_free (fname);
 351                 return;
 352         }
 353
 354         if (type == TNY_FOLDER_TYPE_NORMAL || type == TNY_FOLDER_TYPE_UNKNOWN) {
 355                 type = modest_tny_folder_guess_folder_type_from_name (fname);
 356         }
 357
 358         switch (type) {
 359         case TNY_FOLDER_TYPE_ROOT:
 360                 account_id = tny_account_get_id (TNY_ACCOUNT (instance));
 361                 if (!strcmp (account_id, MODEST_LOCAL_FOLDERS_ACCOUNT_ID)) {
 362                         pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_LOCAL_FOLDERS);
 363                 } else {
 364                         if (!strcmp (account_id, MODEST_MMC_ACCOUNT_ID))
 365                                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_MMC);
 366                         else
 367                                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_ACCOUNT);
 368                 }
 369                 break;
 370         case TNY_FOLDER_TYPE_INBOX:
 371                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_INBOX);
 372                 break;
 373         case TNY_FOLDER_TYPE_OUTBOX:
 374                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_OUTBOX);
 375                 break;
 376         case TNY_FOLDER_TYPE_JUNK:
 377                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_JUNK);
 378                 break;
 379         case TNY_FOLDER_TYPE_SENT:
 380                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_SENT);
 381                 break;
 382         case TNY_FOLDER_TYPE_TRASH:
 383                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_TRASH);
 384                 break;
 385         case TNY_FOLDER_TYPE_DRAFTS:
 386                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_DRAFTS);
 387                 break;
 388         case TNY_FOLDER_TYPE_NORMAL:
 389         default:
 390                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_NORMAL);
 391                 break;
 392         }
 393         g_object_unref (G_OBJECT (instance));
 394         g_free (fname);
 395
 396         /* Set pixbuf */
 397         g_object_set (rendobj, "pixbuf", pixbuf, NULL);
 398 }
 399
 400 static void
 401 modest_folder_view_init (ModestFolderView *obj)
 402 {
 403         ModestFolderViewPrivate *priv;
 404         GtkTreeViewColumn *column;
 405         GtkCellRenderer *renderer;
 406         GtkTreeSelection *sel;
 407         ModestConf *conf;
 408
 409         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(obj);
 410
 411         priv->timer_expander = 0;
 412         priv->account_store  = NULL;
 413         priv->cur_folder_store     = NULL;
 414         priv->query          = NULL;
 415
 416         /* Initialize the local account name */
 417         conf = modest_runtime_get_conf();
 418         priv->local_account_name = modest_conf_get_string (conf, MODEST_CONF_DEVICE_NAME, NULL);
 419
 420         /* Build treeview */
 421         column = gtk_tree_view_column_new ();
 422
 423         renderer = gtk_cell_renderer_pixbuf_new();
 424         gtk_tree_view_column_pack_start (column, renderer, FALSE);
 425         gtk_tree_view_column_set_cell_data_func(column, renderer,
 426                                                 icon_cell_data, obj, NULL);
 427
 428         renderer = gtk_cell_renderer_text_new();
 429         gtk_tree_view_column_pack_start (column, renderer, FALSE);
 430         gtk_tree_view_column_set_cell_data_func(column, renderer,
 431                                                 text_cell_data, obj, NULL);
 432
 433         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(obj));
 434         gtk_tree_selection_set_mode (sel, GTK_SELECTION_SINGLE);
 435
 436         gtk_tree_view_column_set_spacing (column, 2);
 437         gtk_tree_view_column_set_resizable (column, TRUE);
 438         gtk_tree_view_column_set_fixed_width (column, TRUE);
 439         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(obj), FALSE);
 440         gtk_tree_view_set_enable_search     (GTK_TREE_VIEW(obj), FALSE);
 441
 442         gtk_tree_view_append_column (GTK_TREE_VIEW(obj),column);
 443
 444         /* Setup drag and drop */
 445         setup_drag_and_drop (GTK_TREE_VIEW(obj));
 446
 447         /* Connect signals */
 448         g_signal_connect (G_OBJECT (obj),
 449                           "key-press-event",
 450                           G_CALLBACK (on_key_pressed), NULL);
 451
 452         /*
 453          * Track changes in the local account name (in the device it
 454          * will be the device name)
 455          */
 456         g_signal_connect (G_OBJECT(conf),
 457                           "key_changed",
 458                           G_CALLBACK(on_configuration_key_changed), obj);
 459
 460 }
 461
 462 static void
 463 tny_account_store_view_init (gpointer g, gpointer iface_data)
 464 {
 465         TnyAccountStoreViewIface *klass = (TnyAccountStoreViewIface *)g;
 466
 467         klass->set_account_store_func = modest_folder_view_set_account_store;
 468
 469         return;
 470 }
 471
 472 static void
 473 modest_folder_view_finalize (GObject *obj)
 474 {
 475         ModestFolderViewPrivate *priv;
 476         GtkTreeSelection    *sel;
 477
 478         g_return_if_fail (obj);
 479
 480         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(obj);
 481
 482         if (priv->timer_expander != 0) {
 483                 g_source_remove (priv->timer_expander);
 484                 priv->timer_expander = 0;
 485         }
 486
 487         if (priv->account_store) {
 488                 g_signal_handler_disconnect (G_OBJECT(priv->account_store),
 489                                              priv->account_update_signal);
 490                 g_signal_handler_disconnect (G_OBJECT(priv->account_store),
 491                                              priv->accounts_reloaded_signal);
 492                 g_object_unref (G_OBJECT(priv->account_store));
 493                 priv->account_store = NULL;
 494         }
 495
 496         if (priv->query) {
 497                 g_object_unref (G_OBJECT (priv->query));
 498                 priv->query = NULL;
 499         }
 500
 501         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(obj));
 502         if (sel)
 503                 g_signal_handler_disconnect (G_OBJECT(sel), priv->changed_signal);
 504
 505         g_free (priv->local_account_name);
 506
 507         G_OBJECT_CLASS(parent_class)->finalize (obj);
 508 }
 509
 510
 511 static void
 512 modest_folder_view_set_account_store (TnyAccountStoreView *self, TnyAccountStore *account_store)
 513 {
 514         ModestFolderViewPrivate *priv;
 515         TnyDevice *device;
 516
 517         g_return_if_fail (MODEST_IS_FOLDER_VIEW (self));
 518         g_return_if_fail (TNY_IS_ACCOUNT_STORE (account_store));
 519
 520         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
 521         device = tny_account_store_get_device (account_store);
 522
 523         if (G_UNLIKELY (priv->account_store)) {
 524
 525                 if (g_signal_handler_is_connected (G_OBJECT (priv->account_store),
 526                                                    priv->account_update_signal))
 527                         g_signal_handler_disconnect (G_OBJECT (priv->account_store),
 528                                                      priv->account_update_signal);
 529                 if (g_signal_handler_is_connected (G_OBJECT (priv->account_store),
 530                                                    priv->accounts_reloaded_signal))
 531                         g_signal_handler_disconnect (G_OBJECT (priv->account_store),
 532                                                      priv->accounts_reloaded_signal);
 533
 534                 g_object_unref (G_OBJECT (priv->account_store));
 535         }
 536
 537         priv->account_store = g_object_ref (G_OBJECT (account_store));
 538
 539         priv->account_update_signal =
 540                 g_signal_connect (G_OBJECT(account_store), "account_update",
 541                                   G_CALLBACK (on_account_update), self);
 542
 543         priv->accounts_reloaded_signal =
 544                 g_signal_connect (G_OBJECT(account_store), "accounts_reloaded",
 545                                   G_CALLBACK (on_accounts_reloaded), self);
 546
 547         if (!update_model (MODEST_FOLDER_VIEW (self),
 548                            MODEST_TNY_ACCOUNT_STORE (priv->account_store)))
 549                 g_printerr ("modest: failed to update model\n");
 550
 551         g_object_unref (G_OBJECT (device));
 552 }
 553
 554 static void
 555 on_account_update (TnyAccountStore *account_store, const gchar *account,
 556                    gpointer user_data)
 557 {
 558         if (!update_model (MODEST_FOLDER_VIEW(user_data),
 559                            MODEST_TNY_ACCOUNT_STORE(account_store)))
 560                 g_printerr ("modest: failed to update model for changes in '%s'",
 561                             account);
 562 }
 563
 564 static void
 565 on_accounts_reloaded   (TnyAccountStore *account_store,
 566                         gpointer user_data)
 567 {
 568         update_model (MODEST_FOLDER_VIEW (user_data),
 569                       MODEST_TNY_ACCOUNT_STORE(account_store));
 570 }
 571
 572 void
 573 modest_folder_view_set_title (ModestFolderView *self, const gchar *title)
 574 {
 575         GtkTreeViewColumn *col;
 576
 577         g_return_if_fail (self);
 578
 579         col = gtk_tree_view_get_column (GTK_TREE_VIEW(self), 0);
 580         if (!col) {
 581                 g_printerr ("modest: failed get column for title\n");
 582                 return;
 583         }
 584
 585         gtk_tree_view_column_set_title (col, title);
 586         gtk_tree_view_set_headers_visible (GTK_TREE_VIEW(self),
 587                                            title != NULL);
 588 }
 589
 590 GtkWidget*
 591 modest_folder_view_new (TnyFolderStoreQuery *query)
 592 {
 593         GObject *self;
 594         ModestFolderViewPrivate *priv;
 595         GtkTreeSelection *sel;
 596
 597         self = G_OBJECT (g_object_new (MODEST_TYPE_FOLDER_VIEW, NULL));
 598         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
 599
 600         priv->query = g_object_ref (query);
 601
 602         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 603         priv->changed_signal = g_signal_connect (sel, "changed",
 604                                                  G_CALLBACK (on_selection_changed), self);
 605         return GTK_WIDGET(self);
 606 }
 607
 608 /* this feels dirty; any other way to expand all the root items? */
 609 static void
 610 expand_root_items (ModestFolderView *self)
 611 {
 612         GtkTreePath *path;
 613         path = gtk_tree_path_new_first ();
 614
 615         /* all folders should have child items, so.. */
 616         while (gtk_tree_view_expand_row (GTK_TREE_VIEW(self), path, FALSE))
 617                 gtk_tree_path_next (path);
 618
 619         gtk_tree_path_free (path);
 620 }
 621
 622 static gboolean
 623 update_model (ModestFolderView *self, ModestTnyAccountStore *account_store)
 624 {
 625         ModestFolderViewPrivate *priv;
 626
 627         TnyList          *account_list;
 628         GtkTreeModel     *model, *sortable;
 629
 630         g_return_val_if_fail (account_store, FALSE);
 631
 632         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 633
 634         /* Notify that there is no folder selected */
 635         g_signal_emit (G_OBJECT(self),
 636                        signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
 637                        NULL, TRUE);
 638
 639         /* FIXME: the local accounts are not shown when the query
 640            selects only the subscribed folders. */
 641 /*      model        = tny_gtk_folder_store_tree_model_new (TRUE, priv->query); */
 642         model        = tny_gtk_folder_store_tree_model_new (TRUE, NULL);
 643         account_list = TNY_LIST(model);
 644
 645         tny_account_store_get_accounts (TNY_ACCOUNT_STORE(account_store),
 646                                         account_list,
 647                                         TNY_ACCOUNT_STORE_STORE_ACCOUNTS);
 648         if (account_list) {
 649                 sortable = gtk_tree_model_sort_new_with_model (model);
 650                 gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 651                                                       TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 652                                                       GTK_SORT_ASCENDING);
 653                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE (sortable),
 654                                                  TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 655                                                  cmp_rows, NULL, NULL);
 656
 657                 /* Set new model */
 658                 gtk_tree_view_set_model (GTK_TREE_VIEW(self), sortable);
 659                 expand_root_items (self); /* expand all account folders */
 660                 g_object_unref (account_list);
 661         }
 662
 663         return TRUE;
 664 }
 665
 666
 667 static void
 668 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
 669 {
 670         GtkTreeModel            *model_sort, *model;
 671         TnyFolderStore          *folder = NULL;
 672         GtkTreeIter             iter, iter_sort;
 673         ModestFolderView        *tree_view;
 674         ModestFolderViewPrivate *priv;
 675         gint                    type;
 676
 677         g_return_if_fail (sel);
 678         g_return_if_fail (user_data);
 679
 680         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(user_data);
 681         priv->cur_selection = sel;
 682
 683         /* folder was _un_selected if true */
 684         if (!gtk_tree_selection_get_selected (sel, &model_sort, &iter_sort)) {
 685                 if (priv->cur_folder_store)
 686                         g_object_unref (priv->cur_folder_store);
 687                 priv->cur_folder_store = NULL;
 688
 689                 /* Notify the display name observers */
 690                 g_signal_emit (G_OBJECT(user_data),
 691                                signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL], 0,
 692                                NULL);
 693                 return;
 694         }
 695
 696         model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
 697         gtk_tree_model_sort_convert_iter_to_child_iter (GTK_TREE_MODEL_SORT (model_sort),
 698                                                         &iter,
 699                                                         &iter_sort);
 700
 701         tree_view = MODEST_FOLDER_VIEW (user_data);
 702
 703         gtk_tree_model_get (model, &iter,
 704                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 705                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder,
 706                             -1);
 707
 708         /* If the folder is the same do not notify */
 709         if (priv->cur_folder_store == folder) {
 710                 g_object_unref (folder);
 711                 return;
 712         }
 713
 714         /* Current folder was unselected */
 715         if (priv->cur_folder_store) {
 716                 g_signal_emit (G_OBJECT(tree_view), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
 717                                priv->cur_folder_store, FALSE);
 718                 g_object_unref (priv->cur_folder_store);
 719         }
 720
 721         /* New current references */
 722         priv->cur_folder_store = folder;
 723
 724         /* New folder has been selected */
 725         g_signal_emit (G_OBJECT(tree_view),
 726                        signals[FOLDER_SELECTION_CHANGED_SIGNAL],
 727                        0, folder, TRUE);
 728 }
 729
 730 TnyFolderStore *
 731 modest_folder_view_get_selected (ModestFolderView *self)
 732 {
 733         ModestFolderViewPrivate *priv;
 734
 735         g_return_val_if_fail (self, NULL);
 736
 737         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 738         if (priv->cur_folder_store)
 739                 g_object_ref (priv->cur_folder_store);
 740
 741         return priv->cur_folder_store;
 742 }
 743
 744 static gint
 745 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
 746           gpointer user_data)
 747 {
 748         gint cmp;
 749         gchar         *name1, *name2;
 750         TnyFolderType type;
 751         TnyFolder     *folder1, *folder2;
 752
 753         gtk_tree_model_get (tree_model, iter1,
 754                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &name1,
 755                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 756                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder1,
 757                             -1);
 758         gtk_tree_model_get (tree_model, iter2,
 759                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &name2,
 760                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder2,
 761                             -1);
 762
 763         /* Order must be: Remote accounts -> Local account -> MMC account */
 764         if (type == TNY_FOLDER_TYPE_ROOT) {
 765                 const gchar *account_id = tny_account_get_id (TNY_ACCOUNT (folder1));
 766                 const gchar *account_id2 = tny_account_get_id (TNY_ACCOUNT (folder2));
 767
 768                 if (!strcmp (account_id, MODEST_MMC_ACCOUNT_ID))
 769                         cmp = +1;
 770                 else {
 771                         if (!strcmp (account_id, MODEST_LOCAL_FOLDERS_ACCOUNT_ID)) {
 772                                 if (!strcmp (account_id2, MODEST_MMC_ACCOUNT_ID))
 773                                         cmp = -1;
 774                                 else
 775                                         cmp = +1;
 776                         } else {
 777                                 if (!strcmp (account_id2, MODEST_LOCAL_FOLDERS_ACCOUNT_ID) ||
 778                                     !strcmp (account_id2, MODEST_MMC_ACCOUNT_ID))
 779                                         cmp = -1;
 780                                 else
 781                                         cmp = modest_text_utils_utf8_strcmp (name1, name2, TRUE);
 782                         }
 783                 }
 784         } else
 785                 cmp = modest_text_utils_utf8_strcmp (name1, name2, TRUE);
 786
 787         if (folder1)
 788                 g_object_unref(G_OBJECT(folder1));
 789         if (folder2)
 790                 g_object_unref(G_OBJECT(folder2));
 791
 792         g_free (name1);
 793         g_free (name2);
 794
 795         return cmp;
 796 }
 797
 798 /*****************************************************************************/
 799 /*                        DRAG and DROP stuff                                */
 800 /*****************************************************************************/
 801
 802 /*
 803  * This function fills the #GtkSelectionData with the row and the
 804  * model that has been dragged. It's called when this widget is a
 805  * source for dnd after the event drop happened
 806  */
 807 static void
 808 on_drag_data_get (GtkWidget *widget,
 809                   GdkDragContext *context,
 810                   GtkSelectionData *selection_data,
 811                   guint info,
 812                   guint time,
 813                   gpointer data)
 814 {
 815         GtkTreeSelection *selection;
 816         GtkTreeModel *model_sort, *model;
 817         GtkTreeIter iter;
 818         GtkTreePath *source_row_sort;
 819         GtkTreePath *source_row;
 820
 821         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (widget));
 822         gtk_tree_selection_get_selected (selection, &model_sort, &iter);
 823         source_row_sort = gtk_tree_model_get_path (model_sort, &iter);
 824
 825         /* Get the unsorted path and model */
 826         model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
 827         source_row = gtk_tree_model_sort_convert_path_to_child_path (GTK_TREE_MODEL_SORT (model_sort),
 828                                                                      source_row_sort);
 829
 830         gtk_tree_set_row_drag_data (selection_data,
 831                                     model,
 832                                     source_row);
 833
 834         gtk_tree_path_free (source_row_sort);
 835         gtk_tree_path_free (source_row);
 836 }
 837
 838 typedef struct _DndHelper {
 839         gboolean delete_source;
 840         GtkTreePath *source_row;
 841         GdkDragContext *context;
 842         guint time;
 843 } DndHelper;
 844
 845
 846 /*
 847  * This function is the callback of the
 848  * modest_mail_operation_xfer_msg() and
 849  * modest_mail_operation_xfer_folder() calls. We check here if the
 850  * message/folder was correctly asynchronously transferred. The reason
 851  * to use the same callback is that the code is the same, it only has
 852  * to check that the operation went fine and then finalize the drag
 853  * and drop action
 854  */
 855 static void
 856 on_progress_changed (ModestMailOperation *mail_op, gpointer user_data)
 857 {
 858         gboolean success;
 859         DndHelper *helper;
 860
 861         helper = (DndHelper *) user_data;
 862
 863         if (!modest_mail_operation_is_finished (mail_op))
 864                 return;
 865
 866         if (modest_mail_operation_get_status (mail_op) ==
 867             MODEST_MAIL_OPERATION_STATUS_SUCCESS) {
 868                 success = TRUE;
 869         } else {
 870                 success = FALSE;
 871         }
 872
 873         /* Notify the drag source. Never call delete, the monitor will
 874            do the job if needed */
 875         gtk_drag_finish (helper->context, success, FALSE, helper->time);
 876
 877         /* Free the helper */
 878         gtk_tree_path_free (helper->source_row);
 879         g_slice_free (DndHelper, helper);
 880 }
 881
 882 /*
 883  * This function is used by drag_data_received_cb to manage drag and
 884  * drop of a header, i.e, and drag from the header view to the folder
 885  * view.
 886  */
 887 static void
 888 drag_and_drop_from_header_view (GtkTreeModel *source_model,
 889                                 GtkTreeModel *dest_model,
 890                                 GtkTreePath  *dest_row,
 891                                 DndHelper    *helper)
 892 {
 893         TnyHeader *header;
 894         TnyFolder *folder;
 895         ModestMailOperation *mail_op;
 896         GtkTreeIter source_iter, dest_iter;
 897
 898         /* Get header */
 899         gtk_tree_model_get_iter (source_model, &source_iter, helper->source_row);
 900         gtk_tree_model_get (source_model, &source_iter,
 901                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 902                             &header, -1);
 903
 904         /* Get Folder */
 905         gtk_tree_model_get_iter (dest_model, &dest_iter, dest_row);
 906         gtk_tree_model_get (dest_model, &dest_iter,
 907                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN,
 908                             &folder, -1);
 909
 910         /* Transfer message */
 911         mail_op = modest_mail_operation_new ();
 912         modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
 913                                          mail_op);
 914         g_signal_connect (G_OBJECT (mail_op), "progress-changed",
 915                           G_CALLBACK (on_progress_changed), helper);
 916
 917         modest_mail_operation_xfer_msg (mail_op, header, folder, helper->delete_source);
 918
 919         /* Frees */
 920         g_object_unref (G_OBJECT (mail_op));
 921         g_object_unref (G_OBJECT (header));
 922         g_object_unref (G_OBJECT (folder));
 923 }
 924
 925 /*
 926  * This function is used by drag_data_received_cb to manage drag and
 927  * drop of a folder, i.e, and drag from the folder view to the same
 928  * folder view.
 929  */
 930 static void
 931 drag_and_drop_from_folder_view (GtkTreeModel     *source_model,
 932                                 GtkTreeModel     *dest_model,
 933                                 GtkTreePath      *dest_row,
 934                                 GtkSelectionData *selection_data,
 935                                 DndHelper        *helper)
 936 {
 937         ModestMailOperation *mail_op;
 938         GtkTreeIter parent_iter, iter;
 939         TnyFolderStore *parent_folder;
 940         TnyFolder *folder;
 941
 942         /* Check if the drag is possible */
 943         if (!gtk_tree_path_compare (helper->source_row, dest_row) ||
 944             !gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (dest_model),
 945                                                    dest_row,
 946                                                    selection_data)) {
 947
 948                 gtk_drag_finish (helper->context, FALSE, FALSE, helper->time);
 949                 gtk_tree_path_free (helper->source_row);
 950                 g_slice_free (DndHelper, helper);
 951                 return;
 952         }
 953
 954         /* Get data */
 955         gtk_tree_model_get_iter (source_model, &parent_iter, dest_row);
 956         gtk_tree_model_get_iter (source_model, &iter, helper->source_row);
 957         gtk_tree_model_get (source_model, &parent_iter,
 958                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN,
 959                             &parent_folder, -1);
 960         gtk_tree_model_get (source_model, &iter,
 961                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN,
 962                             &folder, -1);
 963
 964         /* Do the mail operation */
 965         mail_op = modest_mail_operation_new ();
 966         modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
 967                                          mail_op);
 968         g_signal_connect (G_OBJECT (mail_op), "progress-changed",
 969                           G_CALLBACK (on_progress_changed), helper);
 970
 971         modest_mail_operation_xfer_folder (mail_op,
 972                                            folder,
 973                                            parent_folder,
 974                                            helper->delete_source);
 975
 976         /* Frees */
 977         g_object_unref (G_OBJECT (parent_folder));
 978         g_object_unref (G_OBJECT (folder));
 979         g_object_unref (G_OBJECT (mail_op));
 980 }
 981
 982 /*
 983  * This function receives the data set by the "drag-data-get" signal
 984  * handler. This information comes within the #GtkSelectionData. This
 985  * function will manage both the drags of folders of the treeview and
 986  * drags of headers of the header view widget.
 987  */
 988 static void
 989 on_drag_data_received (GtkWidget *widget,
 990                        GdkDragContext *context,
 991                        gint x,
 992                        gint y,
 993                        GtkSelectionData *selection_data,
 994                        guint target_type,
 995                        guint time,
 996                        gpointer data)
 997 {
 998         GtkWidget *source_widget;
 999         GtkTreeModel *model_sort, *dest_model, *source_model;
1000         GtkTreePath *source_row, *dest_row, *child_dest_row;
1001         GtkTreeViewDropPosition pos;
1002         gboolean success = FALSE, delete_source = FALSE;
1003         DndHelper *helper;
1004
1005         /* Do not allow further process */
1006         g_signal_stop_emission_by_name (widget, "drag-data-received");
1007
1008         /* Get the action */
1009         if (context->action == GDK_ACTION_MOVE)
1010                 delete_source = TRUE;
1011
1012         /* Check if the get_data failed */
1013         if (selection_data == NULL || selection_data->length < 0)
1014                 gtk_drag_finish (context, success, FALSE, time);
1015
1016         /* Get the models */
1017         source_widget = gtk_drag_get_source_widget (context);
1018         gtk_tree_get_row_drag_data (selection_data,
1019                                     &source_model,
1020                                     &source_row);
1021
1022         model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));
1023         /* Select the destination model */
1024         if (source_widget == widget) {
1025                 dest_model = source_model;
1026         } else {
1027                 dest_model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
1028         }
1029
1030         /* Get the path to the destination row. Can not call
1031            gtk_tree_view_get_drag_dest_row() because the source row
1032            is not selected anymore */
1033         gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget), x, y,
1034                                            &dest_row, &pos);
1035
1036         /* Only allow drops IN other rows */
1037         if (!dest_row || pos == GTK_TREE_VIEW_DROP_BEFORE || pos == GTK_TREE_VIEW_DROP_AFTER)
1038                 gtk_drag_finish (context, success, FALSE, time);
1039
1040         /* Create the helper */
1041         helper = g_slice_new0 (DndHelper);
1042         helper->delete_source = delete_source;
1043         helper->source_row = gtk_tree_path_copy (source_row);
1044         helper->context = context;
1045         helper->time = time;
1046
1047         /* Get path from the unsorted model */
1048         child_dest_row =
1049                 gtk_tree_model_sort_convert_path_to_child_path (GTK_TREE_MODEL_SORT (model_sort),
1050                                                                 dest_row);
1051         gtk_tree_path_free (dest_row);
1052
1053         /* Drags from the header view */
1054         if (source_widget != widget) {
1055
1056                 drag_and_drop_from_header_view (source_model,
1057                                                 dest_model,
1058                                                 child_dest_row,
1059                                                 helper);
1060         } else {
1061
1062
1063                 drag_and_drop_from_folder_view (source_model,
1064                                                 dest_model,
1065                                                 child_dest_row,
1066                                                 selection_data,
1067                                                 helper);
1068         }
1069
1070         /* Frees */
1071         gtk_tree_path_free (source_row);
1072         gtk_tree_path_free (child_dest_row);
1073 }
1074
1075 /*
1076  * We define a "drag-drop" signal handler because we do not want to
1077  * use the default one, because the default one always calls
1078  * gtk_drag_finish and we prefer to do it in the "drag-data-received"
1079  * signal handler, because there we have all the information available
1080  * to know if the dnd was a success or not.
1081  */
1082 static gboolean
1083 drag_drop_cb (GtkWidget      *widget,
1084               GdkDragContext *context,
1085               gint            x,
1086               gint            y,
1087               guint           time,
1088               gpointer        user_data)
1089 {
1090         gpointer target;
1091
1092         if (!context->targets)
1093                 return FALSE;
1094
1095         /* Check if we're dragging a folder row */
1096         target = gtk_drag_dest_find_target (widget, context, NULL);
1097
1098         /* Request the data from the source. */
1099         gtk_drag_get_data(widget, context, target, time);
1100
1101     return TRUE;
1102 }
1103
1104 /*
1105  * This function expands a node of a tree view if it's not expanded
1106  * yet. Not sure why it needs the threads stuff, but gtk+`example code
1107  * does that, so that's why they're here.
1108  */
1109 static gint
1110 expand_row_timeout (gpointer data)
1111 {
1112         GtkTreeView *tree_view = data;
1113         GtkTreePath *dest_path = NULL;
1114         GtkTreeViewDropPosition pos;
1115         gboolean result = FALSE;
1116
1117         GDK_THREADS_ENTER ();
1118
1119         gtk_tree_view_get_drag_dest_row (tree_view,
1120                                          &dest_path,
1121                                          &pos);
1122
1123         if (dest_path &&
1124             (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
1125              pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)) {
1126                 gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
1127                 gtk_tree_path_free (dest_path);
1128         }
1129         else {
1130                 if (dest_path)
1131                         gtk_tree_path_free (dest_path);
1132
1133                 result = TRUE;
1134         }
1135
1136         GDK_THREADS_LEAVE ();
1137
1138         return result;
1139 }
1140
1141 /*
1142  * This function is called whenever the pointer is moved over a widget
1143  * while dragging some data. It installs a timeout that will expand a
1144  * node of the treeview if not expanded yet. This function also calls
1145  * gdk_drag_status in order to set the suggested action that will be
1146  * used by the "drag-data-received" signal handler to know if we
1147  * should do a move or just a copy of the data.
1148  */
1149 static gboolean
1150 on_drag_motion (GtkWidget      *widget,
1151                 GdkDragContext *context,
1152                 gint            x,
1153                 gint            y,
1154                 guint           time,
1155                 gpointer        user_data)
1156 {
1157         GtkTreeViewDropPosition pos;
1158         GtkTreePath *dest_row;
1159         ModestFolderViewPrivate *priv;
1160         GdkDragAction suggested_action;
1161         gboolean valid_location = FALSE;
1162
1163         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (widget);
1164
1165         if (priv->timer_expander != 0) {
1166                 g_source_remove (priv->timer_expander);
1167                 priv->timer_expander = 0;
1168         }
1169
1170         gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget),
1171                                            x, y,
1172                                            &dest_row,
1173                                            &pos);
1174
1175         /* Do not allow drops between folders */
1176         if (!dest_row ||
1177             pos == GTK_TREE_VIEW_DROP_BEFORE ||
1178             pos == GTK_TREE_VIEW_DROP_AFTER) {
1179                 gtk_tree_view_set_drag_dest_row(GTK_TREE_VIEW (widget), NULL, 0);
1180                 gdk_drag_status(context, 0, time);
1181                 valid_location = FALSE;
1182                 goto out;
1183         } else {
1184                 valid_location = TRUE;
1185         }
1186
1187         /* Expand the selected row after 1/2 second */
1188         if (!gtk_tree_view_row_expanded (GTK_TREE_VIEW (widget), dest_row)) {
1189                 gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), dest_row, pos);
1190                 priv->timer_expander = g_timeout_add (500, expand_row_timeout, widget);
1191         }
1192         gtk_tree_path_free (dest_row);
1193
1194         /* Select the desired action. By default we pick MOVE */
1195         suggested_action = GDK_ACTION_MOVE;
1196
1197         if (context->actions == GDK_ACTION_COPY)
1198             gdk_drag_status(context, GDK_ACTION_COPY, time);
1199         else if (context->actions == GDK_ACTION_MOVE)
1200             gdk_drag_status(context, GDK_ACTION_MOVE, time);
1201         else if (context->actions & suggested_action)
1202             gdk_drag_status(context, suggested_action, time);
1203         else
1204             gdk_drag_status(context, GDK_ACTION_DEFAULT, time);
1205
1206  out:
1207         g_signal_stop_emission_by_name (widget, "drag-motion");
1208         return valid_location;
1209 }
1210
1211
1212 /* Folder view drag types */
1213 const GtkTargetEntry folder_view_drag_types[] =
1214 {
1215         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, MODEST_FOLDER_ROW },
1216         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP,    MODEST_HEADER_ROW }
1217 };
1218
1219 /*
1220  * This function sets the treeview as a source and a target for dnd
1221  * events. It also connects all the requirede signals.
1222  */
1223 static void
1224 setup_drag_and_drop (GtkTreeView *self)
1225 {
1226         /* Set up the folder view as a dnd destination. Set only the
1227            highlight flag, otherwise gtk will have a different
1228            behaviour */
1229         gtk_drag_dest_set (GTK_WIDGET (self),
1230                            GTK_DEST_DEFAULT_HIGHLIGHT,
1231                            folder_view_drag_types,
1232                            G_N_ELEMENTS (folder_view_drag_types),
1233                            GDK_ACTION_MOVE | GDK_ACTION_COPY);
1234
1235         g_signal_connect (G_OBJECT (self),
1236                           "drag_data_received",
1237                           G_CALLBACK (on_drag_data_received),
1238                           NULL);
1239
1240
1241         /* Set up the treeview as a dnd source */
1242         gtk_drag_source_set (GTK_WIDGET (self),
1243                              GDK_BUTTON1_MASK,
1244                              folder_view_drag_types,
1245                              G_N_ELEMENTS (folder_view_drag_types),
1246                              GDK_ACTION_MOVE | GDK_ACTION_COPY);
1247
1248         g_signal_connect (G_OBJECT (self),
1249                           "drag_motion",
1250                           G_CALLBACK (on_drag_motion),
1251                           NULL);
1252
1253         g_signal_connect (G_OBJECT (self),
1254                           "drag_data_get",
1255                           G_CALLBACK (on_drag_data_get),
1256                           NULL);
1257
1258         g_signal_connect (G_OBJECT (self),
1259                           "drag_drop",
1260                           G_CALLBACK (drag_drop_cb),
1261                           NULL);
1262 }
1263
1264 /*
1265  * This function manages the navigation through the folders using the
1266  * keyboard or the hardware keys in the device
1267  */
1268 static gboolean
1269 on_key_pressed (GtkWidget *self,
1270                 GdkEventKey *event,
1271                 gpointer user_data)
1272 {
1273         GtkTreeSelection *selection;
1274         GtkTreeIter iter;
1275         GtkTreeModel *model;
1276         gboolean retval = FALSE;
1277
1278         /* Up and Down are automatically managed by the treeview */
1279         if (event->keyval == GDK_Return) {
1280                 /* Expand/Collapse the selected row */
1281                 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
1282                 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
1283                         GtkTreePath *path;
1284
1285                         path = gtk_tree_model_get_path (model, &iter);
1286
1287                         if (gtk_tree_view_row_expanded (GTK_TREE_VIEW (self), path))
1288                                 gtk_tree_view_collapse_row (GTK_TREE_VIEW (self), path);
1289                         else
1290                                 gtk_tree_view_expand_row (GTK_TREE_VIEW (self), path, FALSE);
1291                         gtk_tree_path_free (path);
1292                 }
1293                 /* No further processing */
1294                 retval = TRUE;
1295         }
1296
1297         return retval;
1298 }
1299
1300 /*
1301  * We listen to the changes in the local folder account name key,
1302  * because we want to show the right name in the view. The local
1303  * folder account name corresponds to the device name in the Maemo
1304  * version. We do this because we do not want to query gconf on each
1305  * tree view refresh. It's better to cache it and change whenever
1306  * necessary.
1307  */
1308 static void
1309 on_configuration_key_changed (ModestConf* conf,
1310                               const gchar *key,
1311                               ModestConfEvent event,
1312                               ModestFolderView *self)
1313 {
1314         ModestFolderViewPrivate *priv;
1315
1316         if (!key || strcmp (key, MODEST_CONF_DEVICE_NAME))
1317                 return;
1318
1319         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
1320
1321         g_free (priv->local_account_name);
1322
1323         if (event == MODEST_CONF_EVENT_KEY_UNSET)
1324                 priv->local_account_name = g_strdup (MODEST_LOCAL_FOLDERS_DEFAULT_DISPLAY_NAME);
1325         else
1326                 priv->local_account_name = modest_conf_get_string (modest_runtime_get_conf(),
1327                                                                    MODEST_CONF_DEVICE_NAME, NULL);
1328
1329         /* Force a redraw */
1330 #if GTK_CHECK_VERSION(2, 8, 0) /* gtk_tree_view_column_queue_resize is only available in GTK+ 2.8 */
1331         GtkTreeViewColumn * tree_column = gtk_tree_view_get_column (GTK_TREE_VIEW (self),
1332                                                 TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN);
1333         gtk_tree_view_column_queue_resize (tree_column);
1334 #endif
1335 }