git.maemo.org Git - modest/blob - src/widgets/modest-header-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 <tny-list.h>
  32 #include <tny-simple-list.h>
  33 #include <tny-folder-monitor.h>
  34 #include <string.h>
  35
  36 #include <modest-header-view.h>
  37 #include <modest-header-view-priv.h>
  38 #include <modest-dnd.h>
  39
  40 #include <modest-marshal.h>
  41 #include <modest-text-utils.h>
  42 #include <modest-icon-names.h>
  43 #include <modest-runtime.h>
  44
  45 static void modest_header_view_class_init  (ModestHeaderViewClass *klass);
  46 static void modest_header_view_init        (ModestHeaderView *obj);
  47 static void modest_header_view_finalize    (GObject *obj);
  48
  49 static gboolean      on_header_clicked      (GtkWidget *widget,
  50                                             GdkEventButton *event,
  51                                             gpointer user_data);
  52
  53 static gint          cmp_rows               (GtkTreeModel *tree_model,
  54                                              GtkTreeIter *iter1,
  55                                              GtkTreeIter *iter2,
  56                                              gpointer user_data);
  57
  58 static void          on_selection_changed   (GtkTreeSelection *sel,
  59                                              gpointer user_data);
  60
  61 static void          setup_drag_and_drop    (GtkTreeView *self);
  62
  63 static GtkTreePath * get_selected_row       (GtkTreeView *self, GtkTreeModel **model);
  64
  65 static gboolean      on_focus_in            (GtkWidget     *sef,
  66                                              GdkEventFocus *event,
  67                                              gpointer       user_data);
  68
  69 typedef struct _ModestHeaderViewPrivate ModestHeaderViewPrivate;
  70 struct _ModestHeaderViewPrivate {
  71         TnyFolder            *folder;
  72         ModestHeaderViewStyle style;
  73
  74         TnyFolderMonitor     *monitor;
  75         GMutex               *monitor_lock;
  76 };
  77
  78 #define MODEST_HEADER_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  79                                                 MODEST_TYPE_HEADER_VIEW, \
  80                                                 ModestHeaderViewPrivate))
  81
  82
  83
  84 #define MODEST_HEADER_VIEW_PTR "modest-header-view"
  85
  86 enum {
  87         HEADER_SELECTED_SIGNAL,
  88         HEADER_ACTIVATED_SIGNAL,
  89         ITEM_NOT_FOUND_SIGNAL,
  90         STATUS_UPDATE_SIGNAL,
  91         LAST_SIGNAL
  92 };
  93
  94 /* globals */
  95 static GObjectClass *parent_class = NULL;
  96
  97 /* uncomment the following if you have defined any signals */
  98 static guint signals[LAST_SIGNAL] = {0};
  99
 100 GType
 101 modest_header_view_get_type (void)
 102 {
 103         static GType my_type = 0;
 104         if (!my_type) {
 105                 static const GTypeInfo my_info = {
 106                         sizeof(ModestHeaderViewClass),
 107                         NULL,           /* base init */
 108                         NULL,           /* base finalize */
 109                         (GClassInitFunc) modest_header_view_class_init,
 110                         NULL,           /* class finalize */
 111                         NULL,           /* class data */
 112                         sizeof(ModestHeaderView),
 113                         1,              /* n_preallocs */
 114                         (GInstanceInitFunc) modest_header_view_init,
 115                         NULL
 116                 };
 117                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
 118                                                   "ModestHeaderView",
 119                                                   &my_info, 0);
 120         }
 121         return my_type;
 122 }
 123
 124 static void
 125 modest_header_view_class_init (ModestHeaderViewClass *klass)
 126 {
 127         GObjectClass *gobject_class;
 128         gobject_class = (GObjectClass*) klass;
 129
 130         parent_class            = g_type_class_peek_parent (klass);
 131         gobject_class->finalize = modest_header_view_finalize;
 132
 133         g_type_class_add_private (gobject_class, sizeof(ModestHeaderViewPrivate));
 134
 135         signals[HEADER_SELECTED_SIGNAL] =
 136                 g_signal_new ("header_selected",
 137                               G_TYPE_FROM_CLASS (gobject_class),
 138                               G_SIGNAL_RUN_FIRST,
 139                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_selected),
 140                               NULL, NULL,
 141                               g_cclosure_marshal_VOID__POINTER,
 142                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 143
 144         signals[HEADER_ACTIVATED_SIGNAL] =
 145                 g_signal_new ("header_activated",
 146                               G_TYPE_FROM_CLASS (gobject_class),
 147                               G_SIGNAL_RUN_FIRST,
 148                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_activated),
 149                               NULL, NULL,
 150                               g_cclosure_marshal_VOID__POINTER,
 151                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 152
 153
 154         signals[ITEM_NOT_FOUND_SIGNAL] =
 155                 g_signal_new ("item_not_found",
 156                               G_TYPE_FROM_CLASS (gobject_class),
 157                               G_SIGNAL_RUN_FIRST,
 158                               G_STRUCT_OFFSET (ModestHeaderViewClass,item_not_found),
 159                               NULL, NULL,
 160                               g_cclosure_marshal_VOID__INT,
 161                               G_TYPE_NONE, 1, G_TYPE_INT);
 162
 163         signals[STATUS_UPDATE_SIGNAL] =
 164                 g_signal_new ("status_update",
 165                               G_TYPE_FROM_CLASS (gobject_class),
 166                               G_SIGNAL_RUN_FIRST,
 167                               G_STRUCT_OFFSET (ModestHeaderViewClass,status_update),
 168                               NULL, NULL,
 169                               modest_marshal_VOID__STRING_INT_INT,
 170                               G_TYPE_NONE, 3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
 171 }
 172
 173 static GtkTreeViewColumn*
 174 get_new_column (const gchar *name, GtkCellRenderer *renderer,
 175                 gboolean resizable, gint sort_col_id, gboolean show_as_text,
 176                 GtkTreeCellDataFunc cell_data_func, gpointer user_data)
 177 {
 178         GtkTreeViewColumn *column;
 179
 180         column =  gtk_tree_view_column_new_with_attributes(name, renderer, NULL);
 181         gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
 182
 183         gtk_tree_view_column_set_resizable (column, resizable);
 184         if (resizable)
 185                 gtk_tree_view_column_set_expand (column, TRUE);
 186
 187         if (show_as_text)
 188                 gtk_tree_view_column_add_attribute (column, renderer, "text",
 189                                                     sort_col_id);
 190         if (sort_col_id >= 0)
 191                 gtk_tree_view_column_set_sort_column_id (column, sort_col_id);
 192
 193         gtk_tree_view_column_set_sort_indicator (column, FALSE);
 194         gtk_tree_view_column_set_reorderable (column, TRUE);
 195
 196         if (cell_data_func)
 197                 gtk_tree_view_column_set_cell_data_func(column, renderer, cell_data_func,
 198                                                         user_data, NULL);
 199         return column;
 200 }
 201
 202
 203
 204
 205 static void
 206 remove_all_columns (ModestHeaderView *obj)
 207 {
 208         GList *columns, *cursor;
 209
 210         columns = gtk_tree_view_get_columns (GTK_TREE_VIEW(obj));
 211
 212         for (cursor = columns; cursor; cursor = cursor->next)
 213                 gtk_tree_view_remove_column (GTK_TREE_VIEW(obj),
 214                                              GTK_TREE_VIEW_COLUMN(cursor->data));
 215         g_list_free (columns);
 216 }
 217
 218 gboolean
 219 modest_header_view_set_columns (ModestHeaderView *self, const GList *columns)
 220 {
 221         GtkTreeModel *sortable;
 222         GtkTreeViewColumn *column=NULL;
 223         GtkTreeSelection *selection = NULL;
 224         GtkCellRenderer *renderer_msgtype,*renderer_header,
 225                 *renderer_attach,  *renderer_comptact_flag,
 226                 *renderer_compact_date;
 227         ModestHeaderViewPrivate *priv;
 228         const GList *cursor;
 229
 230         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 231
 232         /* FIXME: check whether these renderers need to be freed */
 233         renderer_msgtype = gtk_cell_renderer_pixbuf_new ();
 234         renderer_attach  = gtk_cell_renderer_pixbuf_new ();
 235         renderer_header  = gtk_cell_renderer_text_new ();
 236         renderer_comptact_flag  = gtk_cell_renderer_pixbuf_new ();
 237         renderer_compact_date  = gtk_cell_renderer_text_new ();
 238
 239         g_object_set(G_OBJECT(renderer_header),
 240                      "ellipsize", PANGO_ELLIPSIZE_END,
 241                      NULL);
 242         g_object_set(G_OBJECT(renderer_compact_date),
 243                      "xalign", 1.0,
 244                      NULL);
 245
 246         remove_all_columns (self);
 247
 248         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 249         gtk_tree_selection_set_mode(selection, GTK_SELECTION_MULTIPLE);
 250         sortable = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 251
 252         /* Add new columns */
 253         for (cursor = columns; cursor; cursor = g_list_next(cursor)) {
 254                 ModestHeaderViewColumn col =
 255                         (ModestHeaderViewColumn) GPOINTER_TO_INT(cursor->data);
 256
 257                 if (0> col || col >= MODEST_HEADER_VIEW_COLUMN_NUM) {
 258                         g_printerr ("modest: invalid column %d in column list\n", col);
 259                         continue;
 260                 }
 261
 262                 switch (col) {
 263
 264                 case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
 265                         column = get_new_column (_("M"), renderer_msgtype, FALSE,
 266                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 267                                                  FALSE,
 268                                                  (GtkTreeCellDataFunc)_modest_header_view_msgtype_cell_data,
 269                                                  NULL);
 270                         gtk_tree_view_column_set_fixed_width (column, 45);
 271                         break;
 272
 273                 case MODEST_HEADER_VIEW_COLUMN_ATTACH:
 274                         column = get_new_column (_("A"), renderer_attach, FALSE,
 275                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 276                                                  FALSE,
 277                                                  (GtkTreeCellDataFunc)_modest_header_view_attach_cell_data,
 278                                                  NULL);
 279                         gtk_tree_view_column_set_fixed_width (column, 45);
 280                         break;
 281
 282
 283                 case MODEST_HEADER_VIEW_COLUMN_FROM:
 284                         column = get_new_column (_("From"), renderer_header, TRUE,
 285                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 286                                                  TRUE,
 287                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 288                                                  GINT_TO_POINTER(TRUE));
 289                         break;
 290
 291                 case MODEST_HEADER_VIEW_COLUMN_TO:
 292                         column = get_new_column (_("To"), renderer_header, TRUE,
 293                                                  TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN,
 294                                                  TRUE,
 295                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 296                                                  GINT_TO_POINTER(FALSE));
 297                         break;
 298
 299                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_FLAG:
 300                         column = get_new_column (_("F"), renderer_comptact_flag, FALSE,
 301                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 302                                                  FALSE,
 303                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_flag_cell_data,
 304                                                  NULL);
 305                         gtk_tree_view_column_set_fixed_width (column, 45);
 306                         break;
 307
 308                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 309                         column = get_new_column (_("Header"), renderer_header, TRUE,
 310                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 311                                                  TRUE,
 312                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 313                                                  GINT_TO_POINTER(TRUE));
 314                         break;
 315
 316                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
 317                         column = get_new_column (_("Header"), renderer_header, TRUE,
 318                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 319                                                  TRUE,
 320                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 321                                                  GINT_TO_POINTER(FALSE));
 322                         break;
 323
 324
 325                 case MODEST_HEADER_VIEW_COLUMN_SUBJECT:
 326                         column = get_new_column (_("Subject"), renderer_header, TRUE,
 327                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 328                                                  TRUE,
 329                                                  (GtkTreeCellDataFunc)_modest_header_view_header_cell_data,
 330                                                  NULL);
 331                         break;
 332
 333                 case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
 334                         column = get_new_column (_("Received"), renderer_compact_date, FALSE,
 335                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 336                                                  TRUE,
 337                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 338                                                  GINT_TO_POINTER(TRUE));
 339                         gtk_tree_view_column_set_fixed_width (column, 130);
 340                         break;
 341
 342                 case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
 343                         column = get_new_column (_("Sent"), renderer_compact_date, FALSE,
 344                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 345                                                  TRUE,
 346                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 347                                                  GINT_TO_POINTER(FALSE));
 348                         gtk_tree_view_column_set_fixed_width (column, 130);
 349                         break;
 350
 351                 case MODEST_HEADER_VIEW_COLUMN_SIZE:
 352                         column = get_new_column (_("Size"), renderer_header, TRUE,
 353                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 354                                                  FALSE,
 355                                                  (GtkTreeCellDataFunc)_modest_header_view_size_cell_data,
 356                                                  NULL);
 357                         break;
 358                 case MODEST_HEADER_VIEW_COLUMN_STATUS:
 359                         column = get_new_column (_("Status"), renderer_compact_date, TRUE,
 360                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 361                                                  FALSE,
 362                                                  (GtkTreeCellDataFunc)_modest_header_view_status_cell_data,
 363                                                  NULL);
 364                         break;
 365
 366                 default:
 367                         g_return_val_if_reached(FALSE);
 368                 }
 369
 370                 if (sortable)
 371                         gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 372                                                          col, (GtkTreeIterCompareFunc)cmp_rows,
 373                                                          column, NULL);
 374
 375                 /* we keep the column id around */
 376                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_COLUMN,
 377                                    GINT_TO_POINTER(col));
 378
 379                 /* we need this ptr when sorting the rows */
 380                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_PTR,
 381                                    self);
 382                 gtk_tree_view_append_column (GTK_TREE_VIEW(self), column);
 383         }
 384
 385         return TRUE;
 386 }
 387
 388 static void
 389 modest_header_view_init (ModestHeaderView *obj)
 390 {
 391         ModestHeaderViewPrivate *priv;
 392
 393         priv = MODEST_HEADER_VIEW_GET_PRIVATE(obj);
 394
 395         priv->folder  = NULL;
 396
 397         priv->monitor        = NULL;
 398         priv->monitor_lock   = g_mutex_new ();
 399
 400
 401         setup_drag_and_drop (GTK_TREE_VIEW (obj));
 402 }
 403
 404 static void
 405 modest_header_view_finalize (GObject *obj)
 406 {
 407         ModestHeaderView        *self;
 408         ModestHeaderViewPrivate *priv;
 409
 410         self = MODEST_HEADER_VIEW(obj);
 411         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 412
 413         g_mutex_lock (priv->monitor_lock);
 414         if (priv->monitor) {
 415                 tny_folder_monitor_stop (priv->monitor);
 416                 g_object_unref (G_OBJECT (priv->monitor));
 417         }
 418         g_mutex_unlock (priv->monitor_lock);
 419         g_mutex_free (priv->monitor_lock);
 420
 421         if (priv->folder) {
 422                 g_object_unref (G_OBJECT (priv->folder));
 423                 priv->folder   = NULL;
 424         }
 425
 426         G_OBJECT_CLASS(parent_class)->finalize (obj);
 427 }
 428
 429
 430 GtkWidget*
 431 modest_header_view_new (TnyFolder *folder, ModestHeaderViewStyle style)
 432 {
 433         GObject *obj;
 434         GtkTreeSelection *sel;
 435         ModestHeaderView *self;
 436         ModestHeaderViewPrivate *priv;
 437
 438         g_return_val_if_fail (style >= 0 && style < MODEST_HEADER_VIEW_STYLE_NUM,
 439                               NULL);
 440
 441         obj  = G_OBJECT(g_object_new(MODEST_TYPE_HEADER_VIEW, NULL));
 442         self = MODEST_HEADER_VIEW(obj);
 443         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 444
 445         modest_header_view_set_style   (self, style);
 446         modest_header_view_set_folder (self, NULL);
 447
 448         gtk_tree_view_columns_autosize (GTK_TREE_VIEW(obj));
 449         gtk_tree_view_set_fixed_height_mode (GTK_TREE_VIEW(obj),TRUE);
 450         gtk_tree_view_set_enable_search (GTK_TREE_VIEW(obj), TRUE);
 451
 452         gtk_tree_view_set_rules_hint (GTK_TREE_VIEW(obj),
 453                                       TRUE); /* alternating row colors */
 454         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 455
 456         g_signal_connect (sel, "changed",
 457                           G_CALLBACK(on_selection_changed), self);
 458
 459         g_signal_connect (self, "button-press-event",
 460                           G_CALLBACK(on_header_clicked), NULL);
 461
 462         g_signal_connect (self, "focus-in-event",
 463                           G_CALLBACK(on_focus_in), NULL);
 464
 465         return GTK_WIDGET(self);
 466 }
 467
 468
 469 TnyList *
 470 modest_header_view_get_selected_headers (ModestHeaderView *self)
 471 {
 472         GtkTreeSelection *sel;
 473         ModestHeaderViewPrivate *priv;
 474         TnyList *header_list = NULL;
 475         TnyHeader *header;
 476         GList *list, *tmp = NULL;
 477         GtkTreeModel *tree_model = NULL;
 478         GtkTreeIter iter;
 479
 480         g_return_val_if_fail (self, NULL);
 481
 482         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 483
 484         /* Get selected rows */
 485         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 486         list = gtk_tree_selection_get_selected_rows (sel, &tree_model);
 487
 488         if (list) {
 489                 header_list = tny_simple_list_new();
 490
 491                 list = g_list_reverse (list);
 492                 tmp = list;
 493                 while (tmp) {
 494                         /* get header from selection */
 495                         gtk_tree_model_get_iter (tree_model, &iter, (GtkTreePath *) (tmp->data));
 496                         gtk_tree_model_get (tree_model, &iter,
 497                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 498                                             &header, -1);
 499                         /* Prepend to list */
 500                         tny_list_prepend (header_list, G_OBJECT (header));
 501                         g_object_unref (G_OBJECT (header));
 502
 503                         tmp = g_list_next (tmp);
 504                 }
 505                 /* Clean up*/
 506                 g_list_foreach (list, (GFunc) gtk_tree_path_free, NULL);
 507                 g_list_free (list);
 508         }
 509         return header_list;
 510 }
 511
 512
 513 /* scroll our list view so the selected item is visible */
 514 static void
 515 scroll_to_selected (ModestHeaderView *self, GtkTreeIter *iter, gboolean up)
 516 {
 517 #ifdef MODEST_PLATFORM_GNOME
 518
 519         GtkTreePath *selected_path;
 520         GtkTreePath *start, *end;
 521
 522         GtkTreeModel *model;
 523
 524         model         = gtk_tree_view_get_model (GTK_TREE_VIEW(self));
 525         selected_path = gtk_tree_model_get_path (model, iter);
 526
 527         start = gtk_tree_path_new ();
 528         end   = gtk_tree_path_new ();
 529
 530         gtk_tree_view_get_visible_range (GTK_TREE_VIEW(self), &start, &end);
 531
 532         if (gtk_tree_path_compare (selected_path, start) < 0 ||
 533             gtk_tree_path_compare (end, selected_path) < 0)
 534                 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW(self),
 535                                               selected_path, NULL, TRUE,
 536                                               up ? 0.0 : 1.0,
 537                                               up ? 0.0 : 1.0);
 538         gtk_tree_path_free (selected_path);
 539         gtk_tree_path_free (start);
 540         gtk_tree_path_free (end);
 541
 542 #endif /* MODEST_PLATFORM_GNOME */
 543 }
 544
 545
 546 void
 547 modest_header_view_select_next (ModestHeaderView *self)
 548 {
 549         GtkTreeSelection *sel;
 550         GtkTreeIter iter;
 551         GtkTreeModel *model;
 552         GtkTreePath *path;
 553
 554         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 555         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 556         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 557                 /* Unselect previous path */
 558                 gtk_tree_selection_unselect_path (sel, path);
 559
 560                 /* Move path down and selects new one  */
 561                 if (gtk_tree_model_iter_next (model, &iter)) {
 562                         gtk_tree_selection_select_iter (sel, &iter);
 563                         scroll_to_selected (self, &iter, FALSE);
 564                 }
 565                 gtk_tree_path_free(path);
 566         }
 567
 568 }
 569
 570 void
 571 modest_header_view_select_prev (ModestHeaderView *self)
 572 {
 573         GtkTreeSelection *sel;
 574         GtkTreeIter iter;
 575         GtkTreeModel *model;
 576         GtkTreePath *path;
 577
 578         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 579         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 580         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 581                 /* Unselect previous path */
 582                 gtk_tree_selection_unselect_path (sel, path);
 583
 584                 /* Move path up */
 585                 if (gtk_tree_path_prev (path)) {
 586                         gtk_tree_model_get_iter (model, &iter, path);
 587
 588                         /* Select the new one */
 589                         gtk_tree_selection_select_iter (sel, &iter);
 590                         scroll_to_selected (self, &iter, TRUE);
 591
 592                 }
 593                 gtk_tree_path_free (path);
 594         }
 595 }
 596
 597 GList*
 598 modest_header_view_get_columns (ModestHeaderView *self)
 599 {
 600         g_return_val_if_fail (self, FALSE);
 601         return gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 602 }
 603
 604 gboolean
 605 modest_header_view_is_empty (ModestHeaderView *self)
 606 {
 607         g_return_val_if_fail (self, FALSE);
 608         return FALSE; /* FIXME */
 609 }
 610
 611
 612 gboolean
 613 modest_header_view_set_style (ModestHeaderView *self,
 614                               ModestHeaderViewStyle style)
 615 {
 616         ModestHeaderViewPrivate *priv;
 617         gboolean show_col_headers = FALSE;
 618         ModestHeaderViewStyle old_style;
 619
 620         g_return_val_if_fail (self, FALSE);
 621         g_return_val_if_fail (style >= 0 && MODEST_HEADER_VIEW_STYLE_NUM,
 622                               FALSE);
 623
 624         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 625         if (priv->style == style)
 626                 return TRUE; /* nothing to do */
 627
 628         switch (style) {
 629         case MODEST_HEADER_VIEW_STYLE_DETAILS:
 630                 show_col_headers = TRUE;
 631                 break;
 632         case MODEST_HEADER_VIEW_STYLE_TWOLINES:
 633                 break;
 634         default:
 635                 g_return_val_if_reached (FALSE);
 636         }
 637         gtk_tree_view_set_headers_visible   (GTK_TREE_VIEW(self), show_col_headers);
 638         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(self), show_col_headers);
 639
 640         old_style   = priv->style;
 641         priv->style = style;
 642
 643         return TRUE;
 644 }
 645
 646
 647 ModestHeaderViewStyle
 648 modest_header_view_get_style (ModestHeaderView *self)
 649 {
 650         g_return_val_if_fail (self, FALSE);
 651         return MODEST_HEADER_VIEW_GET_PRIVATE(self)->style;
 652 }
 653
 654 /*
 655  * This function sets a sortable model in the header view. It's just
 656  * used for developing purposes, because it only does a
 657  * gtk_tree_view_set_model
 658  */
 659 static void
 660 modest_header_view_set_model (GtkTreeView *header_view, GtkTreeModel *model)
 661 {
 662         GtkTreeModel *old_model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
 663
 664         if (old_model_sort && GTK_IS_TREE_MODEL_SORT (old_model_sort)) {
 665                 GtkTreeModel *old_model;
 666                 ModestHeaderViewPrivate *priv;
 667
 668                 priv = MODEST_HEADER_VIEW_GET_PRIVATE (header_view);
 669                 old_model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (old_model_sort));
 670
 671                 /* Set new model */
 672                 gtk_tree_view_set_model (header_view, model);
 673
 674                 modest_runtime_verify_object_death (old_model, "");
 675                 modest_runtime_verify_object_death (old_model_sort, "");
 676         } else
 677                 gtk_tree_view_set_model (header_view, model);
 678
 679         return;
 680 }
 681
 682 static void
 683 on_progress_changed (ModestMailOperation *mail_op,
 684                      ModestHeaderView *self)
 685 {
 686         GtkTreeModel *sortable;
 687         ModestHeaderViewPrivate *priv;
 688         GList *cols, *cursor;
 689         TnyList *headers;
 690
 691         if (!modest_mail_operation_is_finished (mail_op))
 692                 return;
 693
 694         if (modest_mail_operation_get_error (mail_op))
 695                 return;
 696
 697         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 698
 699         headers = TNY_LIST (tny_gtk_header_list_model_new ());
 700
 701         tny_gtk_header_list_model_set_folder (TNY_GTK_HEADER_LIST_MODEL(headers),
 702                                               priv->folder, TRUE);
 703
 704         sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(headers));
 705         g_object_unref (G_OBJECT (headers));
 706
 707         /* install our special sorting functions */
 708         cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 709         while (cursor) {
 710                 gint col_id = GPOINTER_TO_INT (g_object_get_data(G_OBJECT(cursor->data),
 711                                                                  MODEST_HEADER_VIEW_COLUMN));
 712                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 713                                                  col_id,
 714                                                  (GtkTreeIterCompareFunc) cmp_rows,
 715                                                  cursor->data, NULL);
 716                 cursor = g_list_next(cursor);
 717         }
 718         g_list_free (cols);
 719
 720         /* Set new model */
 721         modest_header_view_set_model (GTK_TREE_VIEW (self), sortable);
 722         g_object_unref (G_OBJECT (sortable));
 723
 724         /* Add a folder observer */
 725         g_mutex_lock (priv->monitor_lock);
 726         priv->monitor = TNY_FOLDER_MONITOR (tny_folder_monitor_new (priv->folder));
 727         tny_folder_monitor_add_list (priv->monitor, TNY_LIST (headers));
 728         tny_folder_monitor_start (priv->monitor);
 729         g_mutex_unlock (priv->monitor_lock);
 730 }
 731
 732 TnyFolder*
 733 modest_header_view_get_folder (ModestHeaderView *self)
 734 {
 735         ModestHeaderViewPrivate *priv;
 736         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 737
 738         if (priv->folder)
 739                 g_object_ref (priv->folder);
 740
 741         return priv->folder;
 742 }
 743
 744 static void
 745 modest_header_view_set_folder_intern (ModestHeaderView *self, TnyFolder *folder)
 746 {
 747         TnyList *headers;
 748         ModestHeaderViewPrivate *priv;
 749         GList *cols, *cursor;
 750         GtkTreeModel *sortable;
 751
 752         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 753
 754         headers = TNY_LIST (tny_gtk_header_list_model_new ());
 755
 756         tny_gtk_header_list_model_set_folder (TNY_GTK_HEADER_LIST_MODEL(headers),
 757                                               folder, FALSE);
 758
 759         /* Add a folder observer */
 760         g_mutex_lock (priv->monitor_lock);
 761         if (priv->monitor) {
 762                 tny_folder_monitor_stop (priv->monitor);
 763                 g_object_unref (G_OBJECT (priv->monitor));
 764         }
 765         priv->monitor = TNY_FOLDER_MONITOR (tny_folder_monitor_new (folder));
 766         tny_folder_monitor_add_list (priv->monitor, TNY_LIST (headers));
 767         tny_folder_monitor_start (priv->monitor);
 768         g_mutex_unlock (priv->monitor_lock);
 769
 770
 771         sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(headers));
 772         g_object_unref (G_OBJECT (headers));
 773
 774         /* install our special sorting functions */
 775         cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 776         while (cursor) {
 777                 gint col_id = GPOINTER_TO_INT (g_object_get_data(G_OBJECT(cursor->data),
 778                                                                  MODEST_HEADER_VIEW_COLUMN));
 779                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 780                                                  col_id,
 781                                                  (GtkTreeIterCompareFunc) cmp_rows,
 782                                                  cursor->data, NULL);
 783                 cursor = g_list_next(cursor);
 784         }
 785         g_list_free (cols);
 786
 787
 788         /* Set new model */
 789         modest_header_view_set_model (GTK_TREE_VIEW (self), sortable);
 790         g_object_unref (G_OBJECT (sortable));
 791 }
 792
 793 void
 794 modest_header_view_set_folder (ModestHeaderView *self, TnyFolder *folder)
 795 {
 796         ModestHeaderViewPrivate *priv;
 797
 798         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 799
 800         if (priv->folder) {
 801                 g_object_unref (priv->folder);
 802                 priv->folder = NULL;
 803         }
 804
 805         if (folder) {
 806                 ModestMailOperation *mail_op;
 807
 808                 modest_header_view_set_folder_intern (self, folder);
 809
 810                 /* Pick my reference. Nothing to do with the mail operation */
 811                 priv->folder = g_object_ref (folder);
 812
 813                 /* no message selected */
 814                 g_signal_emit (G_OBJECT(self), signals[HEADER_SELECTED_SIGNAL], 0, NULL);
 815
 816                 /* Create the mail operation */
 817                 mail_op = modest_mail_operation_new ();
 818                 modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
 819                                                  mail_op);
 820
 821                 /* Register a mail operation observer */
 822                 g_signal_connect (mail_op, "progress-changed",
 823                                   G_CALLBACK (on_progress_changed), self);
 824
 825                 /* Refresh the folder asynchronously */
 826                 modest_mail_operation_refresh_folder (mail_op, folder);
 827
 828                 /* Free */
 829                 g_object_unref (mail_op);
 830
 831         } else {
 832                 g_mutex_lock (priv->monitor_lock);
 833                 modest_header_view_set_model (GTK_TREE_VIEW (self), NULL);
 834
 835                 if (priv->monitor) {
 836                         tny_folder_monitor_stop (priv->monitor);
 837                         g_object_unref (G_OBJECT (priv->monitor));
 838                         priv->monitor = NULL;
 839                 }
 840                 g_mutex_unlock (priv->monitor_lock);
 841         }
 842 }
 843
 844 static gboolean
 845 on_header_clicked (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
 846 {
 847         ModestHeaderView *self = NULL;
 848         ModestHeaderViewPrivate *priv = NULL;
 849         GtkTreePath *path = NULL;
 850         GtkTreeIter iter;
 851         GtkTreeModel *model = NULL;
 852         TnyHeader *header;
 853         /* ignore everything but doubleclick */
 854         if (event->type != GDK_2BUTTON_PRESS)
 855                 return FALSE;
 856
 857         self = MODEST_HEADER_VIEW (widget);
 858         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 859
 860         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 861         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
 862                 return FALSE;
 863
 864         /* get the first selected item */
 865         gtk_tree_model_get (model, &iter,
 866                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 867                             &header, -1);
 868         /* Emit signal */
 869         g_signal_emit (G_OBJECT(self),
 870                        signals[HEADER_ACTIVATED_SIGNAL],
 871                        0, header);
 872
 873         /* Free */
 874         g_object_unref (G_OBJECT (header));
 875         gtk_tree_path_free(path);
 876
 877         return TRUE;
 878 }
 879
 880
 881 static void
 882 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
 883 {
 884         GtkTreeModel *model;
 885         TnyHeader *header;
 886         GtkTreePath *path = NULL;
 887         GtkTreeIter iter;
 888         ModestHeaderView *self;
 889         ModestHeaderViewPrivate *priv;
 890
 891         g_return_if_fail (sel);
 892         g_return_if_fail (user_data);
 893
 894         self = MODEST_HEADER_VIEW (user_data);
 895         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 896
 897         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 898         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
 899                 return; /* msg was _un_selected */
 900
 901         gtk_tree_model_get (model, &iter,
 902                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 903                             &header, -1);
 904
 905         /* Emit signal */
 906         g_signal_emit (G_OBJECT(self),
 907                        signals[HEADER_SELECTED_SIGNAL],
 908                        0, header);
 909
 910         g_object_unref (G_OBJECT (header));
 911         gtk_tree_path_free(path);
 912 }
 913
 914
 915 /* PROTECTED method. It's useful when we want to force a given
 916    selection to reload a msg. For example if we have selected a header
 917    in offline mode, when Modest become online, we want to reload the
 918    message automatically without an user click over the header */
 919 void
 920 _modest_header_view_change_selection (GtkTreeSelection *selection,
 921                                       gpointer user_data)
 922 {
 923         g_return_if_fail (GTK_IS_TREE_SELECTION (selection));
 924         g_return_if_fail (MODEST_IS_HEADER_VIEW (user_data));
 925
 926         on_selection_changed (selection, user_data);
 927 }
 928
 929
 930 static gint
 931 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
 932           gpointer user_data)
 933 {
 934         gint col_id;
 935         gint t1, t2;
 936         gint val1, val2;
 937         gchar *s1, *s2;
 938         gint cmp;
 939
 940         static int counter = 0;
 941         col_id = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(user_data), MODEST_HEADER_VIEW_COLUMN));
 942
 943         if (!(++counter % 100)) {
 944                 GObject *header_view = g_object_get_data(G_OBJECT(user_data),
 945                                                          MODEST_HEADER_VIEW_PTR);
 946                 g_signal_emit (header_view,
 947                                signals[STATUS_UPDATE_SIGNAL],
 948                                0, _("Sorting..."), 0, 0);
 949         }
 950         switch (col_id) {
 951
 952                 /* first one, we decide based on the time */
 953         case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 954         case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
 955
 956                 gtk_tree_model_get (tree_model, iter1,
 957                                     TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 958                                     &t1,-1);
 959                 gtk_tree_model_get (tree_model, iter2,
 960                                     TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 961                                     &t2,-1);
 962                 return t1 - t2;
 963
 964         case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
 965         case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
 966                 gtk_tree_model_get (tree_model, iter1,
 967                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 968                                     &t1,-1);
 969                 gtk_tree_model_get (tree_model, iter2,
 970                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 971                                     &t2,-1);
 972                 return t1 - t2;
 973
 974
 975                 /* next ones, we try the search criteria first, if they're the same, then we use 'sent date' */
 976                 /* FIXME: what about received-date? */
 977         case MODEST_HEADER_VIEW_COLUMN_SUBJECT: {
 978
 979                 gtk_tree_model_get (tree_model, iter1,
 980                                     TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &s1,
 981                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
 982                                     -1);
 983                 gtk_tree_model_get (tree_model, iter2,
 984                                     TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &s2,
 985                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
 986                                     -1);
 987
 988                 /* the prefix ('Re:', 'Fwd:' etc.) we ignore */
 989                 cmp = modest_text_utils_utf8_strcmp (s1 + modest_text_utils_get_subject_prefix_len(s1),
 990                                                      s2 + modest_text_utils_get_subject_prefix_len(s2),
 991                                                      TRUE);
 992                 g_free (s1);
 993                 g_free (s2);
 994
 995                 return cmp ? cmp : t1 - t2;
 996         }
 997
 998         case MODEST_HEADER_VIEW_COLUMN_FROM:
 999
1000                 gtk_tree_model_get (tree_model, iter1,
1001                                     TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN, &s1,
1002                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
1003                                     -1);
1004                 gtk_tree_model_get (tree_model, iter2,
1005                                     TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN, &s2,
1006                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
1007                                     -1);
1008                 cmp = modest_text_utils_utf8_strcmp (s1, s2, TRUE);
1009                 g_free (s1);
1010                 g_free (s2);
1011
1012                 return cmp ? cmp : t1 - t2;
1013
1014         case MODEST_HEADER_VIEW_COLUMN_TO:
1015
1016                 gtk_tree_model_get (tree_model, iter1,
1017                                     TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN, &s1,
1018                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
1019                                     -1);
1020                 gtk_tree_model_get (tree_model, iter2,
1021                                     TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN, &s2,
1022                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
1023                                     -1);
1024                 cmp = modest_text_utils_utf8_strcmp (s1, s2, TRUE);
1025                 g_free (s1);
1026                 g_free (s2);
1027
1028                 return cmp ? cmp : t1 - t2;
1029
1030         case MODEST_HEADER_VIEW_COLUMN_ATTACH:
1031
1032                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1033                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1, -1);
1034                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1035                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2, -1);
1036
1037                 cmp = (val1 & TNY_HEADER_FLAG_ATTACHMENTS) -
1038                         (val2 & TNY_HEADER_FLAG_ATTACHMENTS);
1039
1040                 return cmp ? cmp : t1 - t2;
1041
1042         case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
1043                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1044                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,-1);
1045                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1046                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,-1);
1047                 cmp =  (val1 & TNY_HEADER_FLAG_SEEN) - (val2 & TNY_HEADER_FLAG_SEEN);
1048
1049                 return cmp ? cmp : t1 - t2;
1050
1051         default:
1052                 return &iter1 - &iter2; /* oughhhh  */
1053         }
1054 }
1055
1056 /* Drag and drop stuff */
1057 static void
1058 drag_data_get_cb (GtkWidget *widget, GdkDragContext *context,
1059                   GtkSelectionData *selection_data,
1060                   guint info,  guint time, gpointer data)
1061 {
1062         GtkTreeModel *model;
1063         GtkTreeIter iter;
1064         GtkTreePath *source_row;
1065
1066         source_row = get_selected_row (GTK_TREE_VIEW(widget), &model);
1067         if ((source_row == NULL) || (!gtk_tree_model_get_iter(model, &iter, source_row))) return;
1068
1069         switch (info) {
1070         case MODEST_HEADER_ROW:
1071                 gtk_tree_set_row_drag_data (selection_data, model, source_row);
1072                 break;
1073         case MODEST_MSG: {
1074                 TnyHeader *hdr;
1075                 gtk_tree_model_get (model, &iter,
1076                                     TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN, &hdr,
1077                                     -1);
1078                 if (hdr) {
1079                         g_object_unref (G_OBJECT(hdr));
1080                 }
1081                 break;
1082         }
1083         default:
1084                 g_message ("default");
1085         }
1086
1087         gtk_tree_path_free (source_row);
1088 }
1089
1090 /* Header view drag types */
1091 const GtkTargetEntry header_view_drag_types[] = {
1092         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP, MODEST_HEADER_ROW },
1093         { "text/uri-list",      0,                   MODEST_MSG },
1094
1095 };
1096
1097 static void
1098 setup_drag_and_drop (GtkTreeView *self)
1099 {
1100         gtk_drag_source_set (GTK_WIDGET (self),
1101                              GDK_BUTTON1_MASK,
1102                              header_view_drag_types,
1103                              G_N_ELEMENTS (header_view_drag_types),
1104                              GDK_ACTION_MOVE | GDK_ACTION_COPY);
1105
1106         g_signal_connect(G_OBJECT (self), "drag_data_get",
1107                          G_CALLBACK(drag_data_get_cb), NULL);
1108 }
1109
1110 static GtkTreePath *
1111 get_selected_row (GtkTreeView *self, GtkTreeModel **model)
1112 {
1113         GtkTreePath *path = NULL;
1114         GtkTreeSelection *sel = NULL;
1115         GList *rows = NULL;
1116
1117         sel   = gtk_tree_view_get_selection(self);
1118         rows = gtk_tree_selection_get_selected_rows (sel, model);
1119
1120         if ((rows == NULL) || (g_list_length(rows) != 1))
1121                 goto frees;
1122
1123         path = gtk_tree_path_copy(g_list_nth_data (rows, 0));
1124
1125
1126         /* Free */
1127  frees:
1128         g_list_foreach(rows,(GFunc) gtk_tree_path_free, NULL);
1129         g_list_free(rows);
1130
1131         return path;
1132 }
1133
1134 /*
1135  * This function moves the tree view scroll to the current selected
1136  * row when the widget grabs the focus
1137  */
1138 static gboolean
1139 on_focus_in (GtkWidget     *self,
1140              GdkEventFocus *event,
1141              gpointer       user_data)
1142 {
1143         GtkTreeSelection *selection;
1144         GtkTreeModel *model;
1145         GList *selected;
1146
1147         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
1148         if (!model)
1149                 return FALSE;
1150
1151         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
1152         /* If none selected yet, pick the first one */
1153         if (gtk_tree_selection_count_selected_rows (selection) == 0) {
1154                 GtkTreeIter iter;
1155                 GtkTreePath *path;
1156
1157                 /* Return if the model is empty */
1158                 if (!gtk_tree_model_get_iter_first (model, &iter))
1159                         return FALSE;
1160
1161                 path = gtk_tree_model_get_path (model, &iter);
1162                 gtk_tree_selection_select_path (selection, path);
1163                 gtk_tree_path_free (path);
1164         }
1165
1166         /* Need to get the all the rows because is selection multiple */
1167         selected = gtk_tree_selection_get_selected_rows (selection, &model);
1168
1169         /* Scroll to first path */
1170         gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (self),
1171                                       (GtkTreePath *) selected->data,
1172                                       NULL,
1173                                       TRUE,
1174                                       0.5,
1175                                       0.0);
1176
1177         /* Frees */
1178         g_list_foreach (selected, (GFunc) gtk_tree_path_free, NULL);
1179         g_list_free (selected);
1180
1181         return FALSE;
1182 }