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