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         gint sort_colid[2][TNY_FOLDER_TYPE_NUM];
  77 };
  78
  79 #define MODEST_HEADER_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  80                                                 MODEST_TYPE_HEADER_VIEW, \
  81                                                 ModestHeaderViewPrivate))
  82
  83
  84
  85 #define MODEST_HEADER_VIEW_PTR "modest-header-view"
  86
  87 enum {
  88         HEADER_SELECTED_SIGNAL,
  89         HEADER_ACTIVATED_SIGNAL,
  90         ITEM_NOT_FOUND_SIGNAL,
  91         STATUS_UPDATE_SIGNAL,
  92         LAST_SIGNAL
  93 };
  94
  95 /* globals */
  96 static GObjectClass *parent_class = NULL;
  97
  98 /* uncomment the following if you have defined any signals */
  99 static guint signals[LAST_SIGNAL] = {0};
 100
 101 GType
 102 modest_header_view_get_type (void)
 103 {
 104         static GType my_type = 0;
 105         if (!my_type) {
 106                 static const GTypeInfo my_info = {
 107                         sizeof(ModestHeaderViewClass),
 108                         NULL,           /* base init */
 109                         NULL,           /* base finalize */
 110                         (GClassInitFunc) modest_header_view_class_init,
 111                         NULL,           /* class finalize */
 112                         NULL,           /* class data */
 113                         sizeof(ModestHeaderView),
 114                         1,              /* n_preallocs */
 115                         (GInstanceInitFunc) modest_header_view_init,
 116                         NULL
 117                 };
 118                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
 119                                                   "ModestHeaderView",
 120                                                   &my_info, 0);
 121         }
 122         return my_type;
 123 }
 124
 125 static void
 126 modest_header_view_class_init (ModestHeaderViewClass *klass)
 127 {
 128         GObjectClass *gobject_class;
 129         gobject_class = (GObjectClass*) klass;
 130
 131         parent_class            = g_type_class_peek_parent (klass);
 132         gobject_class->finalize = modest_header_view_finalize;
 133
 134         g_type_class_add_private (gobject_class, sizeof(ModestHeaderViewPrivate));
 135
 136         signals[HEADER_SELECTED_SIGNAL] =
 137                 g_signal_new ("header_selected",
 138                               G_TYPE_FROM_CLASS (gobject_class),
 139                               G_SIGNAL_RUN_FIRST,
 140                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_selected),
 141                               NULL, NULL,
 142                               g_cclosure_marshal_VOID__POINTER,
 143                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 144
 145         signals[HEADER_ACTIVATED_SIGNAL] =
 146                 g_signal_new ("header_activated",
 147                               G_TYPE_FROM_CLASS (gobject_class),
 148                               G_SIGNAL_RUN_FIRST,
 149                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_activated),
 150                               NULL, NULL,
 151                               g_cclosure_marshal_VOID__POINTER,
 152                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 153
 154
 155         signals[ITEM_NOT_FOUND_SIGNAL] =
 156                 g_signal_new ("item_not_found",
 157                               G_TYPE_FROM_CLASS (gobject_class),
 158                               G_SIGNAL_RUN_FIRST,
 159                               G_STRUCT_OFFSET (ModestHeaderViewClass,item_not_found),
 160                               NULL, NULL,
 161                               g_cclosure_marshal_VOID__INT,
 162                               G_TYPE_NONE, 1, G_TYPE_INT);
 163
 164         signals[STATUS_UPDATE_SIGNAL] =
 165                 g_signal_new ("status_update",
 166                               G_TYPE_FROM_CLASS (gobject_class),
 167                               G_SIGNAL_RUN_FIRST,
 168                               G_STRUCT_OFFSET (ModestHeaderViewClass,status_update),
 169                               NULL, NULL,
 170                               modest_marshal_VOID__STRING_INT_INT,
 171                               G_TYPE_NONE, 3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
 172 }
 173
 174 static GtkTreeViewColumn*
 175 get_new_column (const gchar *name, GtkCellRenderer *renderer,
 176                 gboolean resizable, gint sort_col_id, gboolean show_as_text,
 177                 GtkTreeCellDataFunc cell_data_func, gpointer user_data)
 178 {
 179         GtkTreeViewColumn *column;
 180
 181         column =  gtk_tree_view_column_new_with_attributes(name, renderer, NULL);
 182         gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
 183
 184         gtk_tree_view_column_set_resizable (column, resizable);
 185         if (resizable)
 186                 gtk_tree_view_column_set_expand (column, TRUE);
 187
 188         if (show_as_text)
 189                 gtk_tree_view_column_add_attribute (column, renderer, "text",
 190                                                     sort_col_id);
 191         if (sort_col_id >= 0)
 192                 gtk_tree_view_column_set_sort_column_id (column, sort_col_id);
 193
 194         gtk_tree_view_column_set_sort_indicator (column, FALSE);
 195         gtk_tree_view_column_set_reorderable (column, TRUE);
 196
 197         if (cell_data_func)
 198                 gtk_tree_view_column_set_cell_data_func(column, renderer, cell_data_func,
 199                                                         user_data, NULL);
 200         return column;
 201 }
 202
 203
 204
 205
 206 static void
 207 remove_all_columns (ModestHeaderView *obj)
 208 {
 209         GList *columns, *cursor;
 210
 211         columns = gtk_tree_view_get_columns (GTK_TREE_VIEW(obj));
 212
 213         for (cursor = columns; cursor; cursor = cursor->next)
 214                 gtk_tree_view_remove_column (GTK_TREE_VIEW(obj),
 215                                              GTK_TREE_VIEW_COLUMN(cursor->data));
 216         g_list_free (columns);
 217 }
 218
 219 gboolean
 220 modest_header_view_set_columns (ModestHeaderView *self, const GList *columns, TnyFolderType type)
 221 {
 222         GtkTreeModel *sortable;
 223         GtkTreeViewColumn *column=NULL;
 224         GtkTreeSelection *selection = NULL;
 225         GtkCellRenderer *renderer_msgtype,*renderer_header,
 226                 *renderer_attach,  *renderer_comptact_flag,
 227                 *renderer_compact_date;
 228         ModestHeaderViewPrivate *priv;
 229         const GList *cursor;
 230
 231         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 232
 233         /* FIXME: check whether these renderers need to be freed */
 234         renderer_msgtype = gtk_cell_renderer_pixbuf_new ();
 235         renderer_attach  = gtk_cell_renderer_pixbuf_new ();
 236         renderer_header  = gtk_cell_renderer_text_new ();
 237         renderer_comptact_flag  = gtk_cell_renderer_pixbuf_new ();
 238         renderer_compact_date  = gtk_cell_renderer_text_new ();
 239
 240         g_object_set(G_OBJECT(renderer_header),
 241                      "ellipsize", PANGO_ELLIPSIZE_END,
 242                      NULL);
 243         g_object_set(G_OBJECT(renderer_compact_date),
 244                      "xalign", 1.0,
 245                      NULL);
 246
 247         remove_all_columns (self);
 248
 249         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 250         gtk_tree_selection_set_mode(selection, GTK_SELECTION_MULTIPLE);
 251         sortable = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 252
 253         /* Add new columns */
 254         for (cursor = columns; cursor; cursor = g_list_next(cursor)) {
 255                 ModestHeaderViewColumn col =
 256                         (ModestHeaderViewColumn) GPOINTER_TO_INT(cursor->data);
 257
 258                 if (0> col || col >= MODEST_HEADER_VIEW_COLUMN_NUM) {
 259                         g_printerr ("modest: invalid column %d in column list\n", col);
 260                         continue;
 261                 }
 262
 263                 switch (col) {
 264
 265                 case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
 266                         column = get_new_column (_("M"), renderer_msgtype, FALSE,
 267                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 268                                                  FALSE,
 269                                                  (GtkTreeCellDataFunc)_modest_header_view_msgtype_cell_data,
 270                                                  NULL);
 271                         gtk_tree_view_column_set_fixed_width (column, 45);
 272                         break;
 273
 274                 case MODEST_HEADER_VIEW_COLUMN_ATTACH:
 275                         column = get_new_column (_("A"), renderer_attach, FALSE,
 276                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 277                                                  FALSE,
 278                                                  (GtkTreeCellDataFunc)_modest_header_view_attach_cell_data,
 279                                                  NULL);
 280                         gtk_tree_view_column_set_fixed_width (column, 45);
 281                         break;
 282
 283
 284                 case MODEST_HEADER_VIEW_COLUMN_FROM:
 285                         column = get_new_column (_("From"), renderer_header, TRUE,
 286                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 287                                                  TRUE,
 288                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 289                                                  GINT_TO_POINTER(TRUE));
 290                         break;
 291
 292                 case MODEST_HEADER_VIEW_COLUMN_TO:
 293                         column = get_new_column (_("To"), renderer_header, TRUE,
 294                                                  TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN,
 295                                                  TRUE,
 296                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 297                                                  GINT_TO_POINTER(FALSE));
 298                         break;
 299
 300                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_FLAG:
 301                         column = get_new_column (_("F"), renderer_comptact_flag, FALSE,
 302                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 303                                                  FALSE,
 304                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_flag_cell_data,
 305                                                  NULL);
 306                         gtk_tree_view_column_set_fixed_width (column, 45);
 307                         break;
 308
 309                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 310                         column = get_new_column (_("Header"), renderer_header, TRUE,
 311                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 312                                                  TRUE,
 313                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 314                                                  GINT_TO_POINTER(TRUE));
 315                         break;
 316
 317                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
 318                         column = get_new_column (_("Header"), renderer_header, TRUE,
 319                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 320                                                  TRUE,
 321                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 322                                                  GINT_TO_POINTER(FALSE));
 323                         break;
 324
 325
 326                 case MODEST_HEADER_VIEW_COLUMN_SUBJECT:
 327                         column = get_new_column (_("Subject"), renderer_header, TRUE,
 328                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 329                                                  TRUE,
 330                                                  (GtkTreeCellDataFunc)_modest_header_view_header_cell_data,
 331                                                  NULL);
 332                         break;
 333
 334                 case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
 335                         column = get_new_column (_("Received"), renderer_header, TRUE,
 336                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 337                                                  TRUE,
 338                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 339                                                  GINT_TO_POINTER(TRUE));
 340                         break;
 341
 342                 case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
 343                         column = get_new_column (_("Sent"), renderer_header, TRUE,
 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                         break;
 349
 350                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_RECEIVED_DATE:
 351                         column = get_new_column (_("Received"), renderer_compact_date, FALSE,
 352                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 353                                                  TRUE,
 354                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_date_cell_data,
 355                                                  GINT_TO_POINTER(TRUE));
 356                         gtk_tree_view_column_set_fixed_width (column, 130);
 357                         break;
 358
 359                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_SENT_DATE:
 360                         column = get_new_column (_("Sent"), renderer_compact_date, FALSE,
 361                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 362                                                  TRUE,
 363                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_date_cell_data,
 364                                                  GINT_TO_POINTER(FALSE));
 365                         gtk_tree_view_column_set_fixed_width (column, 130);
 366                         break;
 367                 case MODEST_HEADER_VIEW_COLUMN_SIZE:
 368                         column = get_new_column (_("Size"), renderer_header, TRUE,
 369                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 370                                                  FALSE,
 371                                                  (GtkTreeCellDataFunc)_modest_header_view_size_cell_data,
 372                                                  NULL);
 373                         break;
 374                 case MODEST_HEADER_VIEW_COLUMN_STATUS:
 375                         column = get_new_column (_("Status"), renderer_compact_date, TRUE,
 376                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 377                                                  FALSE,
 378                                                  (GtkTreeCellDataFunc)_modest_header_view_status_cell_data,
 379                                                  NULL);
 380                         break;
 381
 382                 default:
 383                         g_return_val_if_reached(FALSE);
 384                 }
 385
 386                 if (sortable)
 387                         gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 388                                                          col, (GtkTreeIterCompareFunc)cmp_rows,
 389                                                          column, NULL);
 390
 391                 /* we keep the column id around */
 392                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_COLUMN,
 393                                    GINT_TO_POINTER(col));
 394
 395                 /* we need this ptr when sorting the rows */
 396                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_PTR,
 397                                    self);
 398                 gtk_tree_view_append_column (GTK_TREE_VIEW(self), column);
 399         }
 400
 401
 402         return TRUE;
 403 }
 404
 405 static void
 406 modest_header_view_init (ModestHeaderView *obj)
 407 {
 408         ModestHeaderViewPrivate *priv;
 409         guint i, j;
 410
 411         priv = MODEST_HEADER_VIEW_GET_PRIVATE(obj);
 412
 413         priv->folder  = NULL;
 414
 415         priv->monitor        = NULL;
 416         priv->monitor_lock   = g_mutex_new ();
 417         for (j=0; j < 2; j++)
 418                 for (i=0; i < TNY_FOLDER_TYPE_NUM; i++)
 419                         priv->sort_colid[j][i] = -1;
 420
 421         setup_drag_and_drop (GTK_TREE_VIEW (obj));
 422 }
 423
 424 static void
 425 modest_header_view_finalize (GObject *obj)
 426 {
 427         ModestHeaderView        *self;
 428         ModestHeaderViewPrivate *priv;
 429
 430         self = MODEST_HEADER_VIEW(obj);
 431         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 432
 433         g_mutex_lock (priv->monitor_lock);
 434         if (priv->monitor) {
 435                 tny_folder_monitor_stop (priv->monitor);
 436                 g_object_unref (G_OBJECT (priv->monitor));
 437         }
 438         g_mutex_unlock (priv->monitor_lock);
 439         g_mutex_free (priv->monitor_lock);
 440
 441         if (priv->folder) {
 442                 g_object_unref (G_OBJECT (priv->folder));
 443                 priv->folder   = NULL;
 444         }
 445
 446         G_OBJECT_CLASS(parent_class)->finalize (obj);
 447 }
 448
 449
 450 GtkWidget*
 451 modest_header_view_new (TnyFolder *folder, ModestHeaderViewStyle style)
 452 {
 453         GObject *obj;
 454         GtkTreeSelection *sel;
 455         ModestHeaderView *self;
 456         ModestHeaderViewPrivate *priv;
 457
 458         g_return_val_if_fail (style >= 0 && style < MODEST_HEADER_VIEW_STYLE_NUM,
 459                               NULL);
 460
 461         obj  = G_OBJECT(g_object_new(MODEST_TYPE_HEADER_VIEW, NULL));
 462         self = MODEST_HEADER_VIEW(obj);
 463         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 464
 465         modest_header_view_set_style   (self, style);
 466         modest_header_view_set_folder (self, NULL);
 467
 468         gtk_tree_view_columns_autosize (GTK_TREE_VIEW(obj));
 469         gtk_tree_view_set_fixed_height_mode (GTK_TREE_VIEW(obj),TRUE);
 470         gtk_tree_view_set_enable_search (GTK_TREE_VIEW(obj), TRUE);
 471
 472         gtk_tree_view_set_rules_hint (GTK_TREE_VIEW(obj),
 473                                       TRUE); /* alternating row colors */
 474         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 475
 476         g_signal_connect (sel, "changed",
 477                           G_CALLBACK(on_selection_changed), self);
 478
 479         g_signal_connect (self, "button-press-event",
 480                           G_CALLBACK(on_header_clicked), NULL);
 481
 482         g_signal_connect (self, "focus-in-event",
 483                           G_CALLBACK(on_focus_in), NULL);
 484
 485         return GTK_WIDGET(self);
 486 }
 487
 488
 489 TnyList *
 490 modest_header_view_get_selected_headers (ModestHeaderView *self)
 491 {
 492         GtkTreeSelection *sel;
 493         ModestHeaderViewPrivate *priv;
 494         TnyList *header_list = NULL;
 495         TnyHeader *header;
 496         GList *list, *tmp = NULL;
 497         GtkTreeModel *tree_model = NULL;
 498         GtkTreeIter iter;
 499
 500         g_return_val_if_fail (self, NULL);
 501
 502         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 503
 504         /* Get selected rows */
 505         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 506         list = gtk_tree_selection_get_selected_rows (sel, &tree_model);
 507
 508         if (list) {
 509                 header_list = tny_simple_list_new();
 510
 511                 list = g_list_reverse (list);
 512                 tmp = list;
 513                 while (tmp) {
 514                         /* get header from selection */
 515                         gtk_tree_model_get_iter (tree_model, &iter, (GtkTreePath *) (tmp->data));
 516                         gtk_tree_model_get (tree_model, &iter,
 517                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 518                                             &header, -1);
 519                         /* Prepend to list */
 520                         tny_list_prepend (header_list, G_OBJECT (header));
 521                         g_object_unref (G_OBJECT (header));
 522
 523                         tmp = g_list_next (tmp);
 524                 }
 525                 /* Clean up*/
 526                 g_list_foreach (list, (GFunc) gtk_tree_path_free, NULL);
 527                 g_list_free (list);
 528         }
 529         return header_list;
 530 }
 531
 532
 533 /* scroll our list view so the selected item is visible */
 534 static void
 535 scroll_to_selected (ModestHeaderView *self, GtkTreeIter *iter, gboolean up)
 536 {
 537 #ifdef MODEST_PLATFORM_GNOME
 538
 539         GtkTreePath *selected_path;
 540         GtkTreePath *start, *end;
 541
 542         GtkTreeModel *model;
 543
 544         model         = gtk_tree_view_get_model (GTK_TREE_VIEW(self));
 545         selected_path = gtk_tree_model_get_path (model, iter);
 546
 547         start = gtk_tree_path_new ();
 548         end   = gtk_tree_path_new ();
 549
 550         gtk_tree_view_get_visible_range (GTK_TREE_VIEW(self), &start, &end);
 551
 552         if (gtk_tree_path_compare (selected_path, start) < 0 ||
 553             gtk_tree_path_compare (end, selected_path) < 0)
 554                 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW(self),
 555                                               selected_path, NULL, TRUE,
 556                                               up ? 0.0 : 1.0,
 557                                               up ? 0.0 : 1.0);
 558         gtk_tree_path_free (selected_path);
 559         gtk_tree_path_free (start);
 560         gtk_tree_path_free (end);
 561
 562 #endif /* MODEST_PLATFORM_GNOME */
 563 }
 564
 565
 566 void
 567 modest_header_view_select_next (ModestHeaderView *self)
 568 {
 569         GtkTreeSelection *sel;
 570         GtkTreeIter iter;
 571         GtkTreeModel *model;
 572         GtkTreePath *path;
 573
 574         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 575         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 576         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 577                 /* Unselect previous path */
 578                 gtk_tree_selection_unselect_path (sel, path);
 579
 580                 /* Move path down and selects new one  */
 581                 if (gtk_tree_model_iter_next (model, &iter)) {
 582                         gtk_tree_selection_select_iter (sel, &iter);
 583                         scroll_to_selected (self, &iter, FALSE);
 584                 }
 585                 gtk_tree_path_free(path);
 586         }
 587
 588 }
 589
 590 void
 591 modest_header_view_select_prev (ModestHeaderView *self)
 592 {
 593         GtkTreeSelection *sel;
 594         GtkTreeIter iter;
 595         GtkTreeModel *model;
 596         GtkTreePath *path;
 597
 598         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 599         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 600         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 601                 /* Unselect previous path */
 602                 gtk_tree_selection_unselect_path (sel, path);
 603
 604                 /* Move path up */
 605                 if (gtk_tree_path_prev (path)) {
 606                         gtk_tree_model_get_iter (model, &iter, path);
 607
 608                         /* Select the new one */
 609                         gtk_tree_selection_select_iter (sel, &iter);
 610                         scroll_to_selected (self, &iter, TRUE);
 611
 612                 }
 613                 gtk_tree_path_free (path);
 614         }
 615 }
 616
 617 GList*
 618 modest_header_view_get_columns (ModestHeaderView *self)
 619 {
 620         g_return_val_if_fail (self, FALSE);
 621         return gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 622 }
 623
 624 gboolean
 625 modest_header_view_is_empty (ModestHeaderView *self)
 626 {
 627         g_return_val_if_fail (self, FALSE);
 628         return FALSE; /* FIXME */
 629 }
 630
 631
 632 gboolean
 633 modest_header_view_set_style (ModestHeaderView *self,
 634                               ModestHeaderViewStyle style)
 635 {
 636         ModestHeaderViewPrivate *priv;
 637         gboolean show_col_headers = FALSE;
 638         ModestHeaderViewStyle old_style;
 639
 640         g_return_val_if_fail (self, FALSE);
 641         g_return_val_if_fail (style >= 0 && MODEST_HEADER_VIEW_STYLE_NUM,
 642                               FALSE);
 643
 644         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 645         if (priv->style == style)
 646                 return TRUE; /* nothing to do */
 647
 648         switch (style) {
 649         case MODEST_HEADER_VIEW_STYLE_DETAILS:
 650                 show_col_headers = TRUE;
 651                 break;
 652         case MODEST_HEADER_VIEW_STYLE_TWOLINES:
 653                 break;
 654         default:
 655                 g_return_val_if_reached (FALSE);
 656         }
 657         gtk_tree_view_set_headers_visible   (GTK_TREE_VIEW(self), show_col_headers);
 658         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(self), show_col_headers);
 659
 660         old_style   = priv->style;
 661         priv->style = style;
 662
 663         return TRUE;
 664 }
 665
 666
 667 ModestHeaderViewStyle
 668 modest_header_view_get_style (ModestHeaderView *self)
 669 {
 670         g_return_val_if_fail (self, FALSE);
 671         return MODEST_HEADER_VIEW_GET_PRIVATE(self)->style;
 672 }
 673
 674 /*
 675  * This function sets a sortable model in the header view. It's just
 676  * used for developing purposes, because it only does a
 677  * gtk_tree_view_set_model
 678  */
 679 static void
 680 modest_header_view_set_model (GtkTreeView *header_view, GtkTreeModel *model)
 681 {
 682         GtkTreeModel *old_model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
 683
 684         if (old_model_sort && GTK_IS_TREE_MODEL_SORT (old_model_sort)) {
 685                 GtkTreeModel *old_model;
 686                 ModestHeaderViewPrivate *priv;
 687
 688                 priv = MODEST_HEADER_VIEW_GET_PRIVATE (header_view);
 689                 old_model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (old_model_sort));
 690
 691                 /* Set new model */
 692                 gtk_tree_view_set_model (header_view, model);
 693
 694                 modest_runtime_verify_object_death (old_model, "");
 695                 modest_runtime_verify_object_death (old_model_sort, "");
 696         } else
 697                 gtk_tree_view_set_model (header_view, model);
 698
 699         return;
 700 }
 701
 702 static void
 703 on_progress_changed (ModestMailOperation *mail_op,
 704                      ModestHeaderView *self)
 705 {
 706         GtkTreeModel *sortable;
 707         ModestHeaderViewPrivate *priv;
 708         GList *cols, *cursor;
 709         TnyList *headers;
 710
 711         if (!modest_mail_operation_is_finished (mail_op))
 712                 return;
 713
 714         if (modest_mail_operation_get_error (mail_op))
 715                 return;
 716
 717         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 718
 719         headers = TNY_LIST (tny_gtk_header_list_model_new ());
 720
 721         tny_gtk_header_list_model_set_folder (TNY_GTK_HEADER_LIST_MODEL(headers),
 722                                               priv->folder, TRUE);
 723
 724         sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(headers));
 725         g_object_unref (G_OBJECT (headers));
 726
 727         /* install our special sorting functions */
 728         cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 729         while (cursor) {
 730                 gint col_id = GPOINTER_TO_INT (g_object_get_data(G_OBJECT(cursor->data),
 731                                                                  MODEST_HEADER_VIEW_COLUMN));
 732                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 733                                                  col_id,
 734                                                  (GtkTreeIterCompareFunc) cmp_rows,
 735                                                  cursor->data, NULL);
 736                 cursor = g_list_next(cursor);
 737         }
 738         g_list_free (cols);
 739
 740         /* Set new model */
 741         modest_header_view_set_model (GTK_TREE_VIEW (self), sortable);
 742         g_object_unref (G_OBJECT (sortable));
 743
 744         /* Add a folder observer */
 745         g_mutex_lock (priv->monitor_lock);
 746         priv->monitor = TNY_FOLDER_MONITOR (tny_folder_monitor_new (priv->folder));
 747         tny_folder_monitor_add_list (priv->monitor, TNY_LIST (headers));
 748         tny_folder_monitor_start (priv->monitor);
 749         g_mutex_unlock (priv->monitor_lock);
 750 }
 751
 752 TnyFolder*
 753 modest_header_view_get_folder (ModestHeaderView *self)
 754 {
 755         ModestHeaderViewPrivate *priv;
 756         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 757
 758         if (priv->folder)
 759                 g_object_ref (priv->folder);
 760
 761         return priv->folder;
 762 }
 763
 764 static void
 765 modest_header_view_set_folder_intern (ModestHeaderView *self, TnyFolder *folder)
 766 {
 767         TnyList *headers;
 768         ModestHeaderViewPrivate *priv;
 769         GList *cols, *cursor;
 770         GtkTreeModel *sortable;
 771
 772         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 773
 774         headers = TNY_LIST (tny_gtk_header_list_model_new ());
 775
 776         tny_gtk_header_list_model_set_folder (TNY_GTK_HEADER_LIST_MODEL(headers),
 777                                               folder, FALSE);
 778
 779         /* Add a folder observer */
 780         g_mutex_lock (priv->monitor_lock);
 781         if (priv->monitor) {
 782                 tny_folder_monitor_stop (priv->monitor);
 783                 g_object_unref (G_OBJECT (priv->monitor));
 784         }
 785         priv->monitor = TNY_FOLDER_MONITOR (tny_folder_monitor_new (folder));
 786         tny_folder_monitor_add_list (priv->monitor, TNY_LIST (headers));
 787         tny_folder_monitor_start (priv->monitor);
 788         g_mutex_unlock (priv->monitor_lock);
 789
 790
 791         sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(headers));
 792         g_object_unref (G_OBJECT (headers));
 793
 794         /* install our special sorting functions */
 795         cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 796         while (cursor) {
 797                 gint col_id = GPOINTER_TO_INT (g_object_get_data(G_OBJECT(cursor->data),
 798                                                                  MODEST_HEADER_VIEW_COLUMN));
 799                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 800                                                  col_id,
 801                                                  (GtkTreeIterCompareFunc) cmp_rows,
 802                                                  cursor->data, NULL);
 803                 cursor = g_list_next(cursor);
 804         }
 805         g_list_free (cols);
 806
 807
 808         /* Set new model */
 809         modest_header_view_set_model (GTK_TREE_VIEW (self), sortable);
 810         g_object_unref (G_OBJECT (sortable));
 811 }
 812
 813 void
 814 modest_header_view_set_sort_column_id (ModestHeaderView *self, guint sort_colid, TnyFolderType type)
 815 {
 816         ModestHeaderViewPrivate *priv;
 817         ModestHeaderViewStyle style;
 818
 819         style = modest_header_view_get_style   (self);
 820         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 821
 822         priv->sort_colid[style][type] = sort_colid;
 823 }
 824
 825 gint
 826 modest_header_view_get_sort_column_id (ModestHeaderView *self, TnyFolderType type)
 827 {
 828         ModestHeaderViewPrivate *priv;
 829         ModestHeaderViewStyle style;
 830
 831         style = modest_header_view_get_style   (self);
 832         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 833
 834         return priv->sort_colid[style][type];
 835 }
 836
 837 void
 838 modest_header_view_set_folder (ModestHeaderView *self, TnyFolder *folder)
 839 {
 840         ModestHeaderViewPrivate *priv;
 841
 842         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 843
 844         if (priv->folder) {
 845                 g_object_unref (priv->folder);
 846                 priv->folder = NULL;
 847         }
 848
 849         if (folder) {
 850                 ModestMailOperation *mail_op;
 851
 852                 modest_header_view_set_folder_intern (self, folder);
 853
 854                 /* Pick my reference. Nothing to do with the mail operation */
 855                 priv->folder = g_object_ref (folder);
 856
 857                 /* no message selected */
 858                 g_signal_emit (G_OBJECT(self), signals[HEADER_SELECTED_SIGNAL], 0, NULL);
 859
 860                 /* Create the mail operation */
 861                 mail_op = modest_mail_operation_new ();
 862                 modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
 863                                                  mail_op);
 864
 865                 /* Register a mail operation observer */
 866                 g_signal_connect (mail_op, "progress-changed",
 867                                   G_CALLBACK (on_progress_changed), self);
 868
 869                 /* Refresh the folder asynchronously */
 870                 modest_mail_operation_refresh_folder (mail_op, folder);
 871
 872                 /* Free */
 873                 g_object_unref (mail_op);
 874
 875         } else {
 876                 g_mutex_lock (priv->monitor_lock);
 877                 modest_header_view_set_model (GTK_TREE_VIEW (self), NULL);
 878
 879                 if (priv->monitor) {
 880                         tny_folder_monitor_stop (priv->monitor);
 881                         g_object_unref (G_OBJECT (priv->monitor));
 882                         priv->monitor = NULL;
 883                 }
 884                 g_mutex_unlock (priv->monitor_lock);
 885         }
 886 }
 887
 888 static gboolean
 889 on_header_clicked (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
 890 {
 891         ModestHeaderView *self = NULL;
 892         ModestHeaderViewPrivate *priv = NULL;
 893         GtkTreePath *path = NULL;
 894         GtkTreeIter iter;
 895         GtkTreeModel *model = NULL;
 896         TnyHeader *header;
 897         /* ignore everything but doubleclick */
 898         if (event->type != GDK_2BUTTON_PRESS)
 899                 return FALSE;
 900
 901         self = MODEST_HEADER_VIEW (widget);
 902         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 903
 904         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 905         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
 906                 return FALSE;
 907
 908         /* get the first selected item */
 909         gtk_tree_model_get (model, &iter,
 910                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 911                             &header, -1);
 912         /* Emit signal */
 913         g_signal_emit (G_OBJECT(self),
 914                        signals[HEADER_ACTIVATED_SIGNAL],
 915                        0, header);
 916
 917         /* Free */
 918         g_object_unref (G_OBJECT (header));
 919         gtk_tree_path_free(path);
 920
 921         return TRUE;
 922 }
 923
 924
 925 static void
 926 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
 927 {
 928         GtkTreeModel *model;
 929         TnyHeader *header;
 930         GtkTreePath *path = NULL;
 931         GtkTreeIter iter;
 932         ModestHeaderView *self;
 933         ModestHeaderViewPrivate *priv;
 934
 935         g_return_if_fail (sel);
 936         g_return_if_fail (user_data);
 937
 938         self = MODEST_HEADER_VIEW (user_data);
 939         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 940
 941         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 942         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
 943                 return; /* msg was _un_selected */
 944
 945         gtk_tree_model_get (model, &iter,
 946                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 947                             &header, -1);
 948
 949         /* Emit signal */
 950         g_signal_emit (G_OBJECT(self),
 951                        signals[HEADER_SELECTED_SIGNAL],
 952                        0, header);
 953
 954         g_object_unref (G_OBJECT (header));
 955         gtk_tree_path_free(path);
 956 }
 957
 958
 959 /* PROTECTED method. It's useful when we want to force a given
 960    selection to reload a msg. For example if we have selected a header
 961    in offline mode, when Modest become online, we want to reload the
 962    message automatically without an user click over the header */
 963 void
 964 _modest_header_view_change_selection (GtkTreeSelection *selection,
 965                                       gpointer user_data)
 966 {
 967         g_return_if_fail (GTK_IS_TREE_SELECTION (selection));
 968         g_return_if_fail (MODEST_IS_HEADER_VIEW (user_data));
 969
 970         on_selection_changed (selection, user_data);
 971 }
 972
 973
 974 static gint
 975 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
 976           gpointer user_data)
 977 {
 978         gint col_id;
 979         gint t1, t2;
 980         gint val1, val2;
 981         gchar *s1, *s2;
 982         gint cmp;
 983         static int counter = 0;
 984
 985         g_return_val_if_fail (G_IS_OBJECT(user_data), 0);
 986         col_id = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(user_data), MODEST_HEADER_VIEW_COLUMN));
 987
 988         if (!(++counter % 100)) {
 989                 GObject *header_view = g_object_get_data(G_OBJECT(user_data),
 990                                                          MODEST_HEADER_VIEW_PTR);
 991                 g_signal_emit (header_view,
 992                                signals[STATUS_UPDATE_SIGNAL],
 993                                0, _("Sorting..."), 0, 0);
 994         }
 995         switch (col_id) {
 996
 997                 /* first one, we decide based on the time */
 998         case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 999         case MODEST_HEADER_VIEW_COLUMN_COMPACT_RECEIVED_DATE:
1000         case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
1001
1002                 gtk_tree_model_get (tree_model, iter1,
1003                                     TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
1004                                     &t1,-1);
1005                 gtk_tree_model_get (tree_model, iter2,
1006                                     TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
1007                                     &t2,-1);
1008                 return t1 - t2;
1009
1010         case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
1011         case MODEST_HEADER_VIEW_COLUMN_COMPACT_SENT_DATE:
1012         case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
1013                 gtk_tree_model_get (tree_model, iter1,
1014                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
1015                                     &t1,-1);
1016                 gtk_tree_model_get (tree_model, iter2,
1017                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
1018                                     &t2,-1);
1019                 return t1 - t2;
1020
1021
1022                 /* next ones, we try the search criteria first, if they're the same, then we use 'sent date' */
1023                 /* FIXME: what about received-date? */
1024         case MODEST_HEADER_VIEW_COLUMN_SUBJECT: {
1025
1026                 gtk_tree_model_get (tree_model, iter1,
1027                                     TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &s1,
1028                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
1029                                     -1);
1030                 gtk_tree_model_get (tree_model, iter2,
1031                                     TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &s2,
1032                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
1033                                     -1);
1034
1035                 /* the prefix ('Re:', 'Fwd:' etc.) we ignore */
1036                 cmp = modest_text_utils_utf8_strcmp (s1 + modest_text_utils_get_subject_prefix_len(s1),
1037                                                      s2 + modest_text_utils_get_subject_prefix_len(s2),
1038                                                      TRUE);
1039                 g_free (s1);
1040                 g_free (s2);
1041
1042                 return cmp ? cmp : t1 - t2;
1043         }
1044
1045         case MODEST_HEADER_VIEW_COLUMN_FROM:
1046
1047                 gtk_tree_model_get (tree_model, iter1,
1048                                     TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN, &s1,
1049                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
1050                                     -1);
1051                 gtk_tree_model_get (tree_model, iter2,
1052                                     TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN, &s2,
1053                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
1054                                     -1);
1055                 cmp = modest_text_utils_utf8_strcmp (s1, s2, TRUE);
1056                 g_free (s1);
1057                 g_free (s2);
1058
1059                 return cmp ? cmp : t1 - t2;
1060
1061         case MODEST_HEADER_VIEW_COLUMN_TO:
1062
1063                 gtk_tree_model_get (tree_model, iter1,
1064                                     TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN, &s1,
1065                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
1066                                     -1);
1067                 gtk_tree_model_get (tree_model, iter2,
1068                                     TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN, &s2,
1069                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
1070                                     -1);
1071                 cmp = modest_text_utils_utf8_strcmp (s1, s2, TRUE);
1072                 g_free (s1);
1073                 g_free (s2);
1074
1075                 return cmp ? cmp : t1 - t2;
1076
1077         case MODEST_HEADER_VIEW_COLUMN_ATTACH:
1078
1079                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1080                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1, -1);
1081                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1082                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2, -1);
1083
1084                 cmp = (val1 & TNY_HEADER_FLAG_ATTACHMENTS) -
1085                         (val2 & TNY_HEADER_FLAG_ATTACHMENTS);
1086
1087                 return cmp ? cmp : t1 - t2;
1088
1089         case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
1090                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1091                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,-1);
1092                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1093                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,-1);
1094                 cmp =  (val1 & TNY_HEADER_FLAG_SEEN) - (val2 & TNY_HEADER_FLAG_SEEN);
1095
1096                 return cmp ? cmp : t1 - t2;
1097
1098         default:
1099                 return &iter1 - &iter2; /* oughhhh  */
1100         }
1101 }
1102
1103 /* Drag and drop stuff */
1104 static void
1105 drag_data_get_cb (GtkWidget *widget, GdkDragContext *context,
1106                   GtkSelectionData *selection_data,
1107                   guint info,  guint time, gpointer data)
1108 {
1109         GtkTreeModel *model;
1110         GtkTreeIter iter;
1111         GtkTreePath *source_row;
1112
1113         source_row = get_selected_row (GTK_TREE_VIEW(widget), &model);
1114         if ((source_row == NULL) || (!gtk_tree_model_get_iter(model, &iter, source_row))) return;
1115
1116         switch (info) {
1117         case MODEST_HEADER_ROW:
1118                 gtk_tree_set_row_drag_data (selection_data, model, source_row);
1119                 break;
1120         case MODEST_MSG: {
1121                 TnyHeader *hdr;
1122                 gtk_tree_model_get (model, &iter,
1123                                     TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN, &hdr,
1124                                     -1);
1125                 if (hdr) {
1126                         g_object_unref (G_OBJECT(hdr));
1127                 }
1128                 break;
1129         }
1130         default:
1131                 g_message ("default");
1132         }
1133
1134         gtk_tree_path_free (source_row);
1135 }
1136
1137 /* Header view drag types */
1138 const GtkTargetEntry header_view_drag_types[] = {
1139         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP, MODEST_HEADER_ROW },
1140         { "text/uri-list",      0,                   MODEST_MSG },
1141
1142 };
1143
1144 static void
1145 setup_drag_and_drop (GtkTreeView *self)
1146 {
1147         gtk_drag_source_set (GTK_WIDGET (self),
1148                              GDK_BUTTON1_MASK,
1149                              header_view_drag_types,
1150                              G_N_ELEMENTS (header_view_drag_types),
1151                              GDK_ACTION_MOVE | GDK_ACTION_COPY);
1152
1153         g_signal_connect(G_OBJECT (self), "drag_data_get",
1154                          G_CALLBACK(drag_data_get_cb), NULL);
1155 }
1156
1157 static GtkTreePath *
1158 get_selected_row (GtkTreeView *self, GtkTreeModel **model)
1159 {
1160         GtkTreePath *path = NULL;
1161         GtkTreeSelection *sel = NULL;
1162         GList *rows = NULL;
1163
1164         sel   = gtk_tree_view_get_selection(self);
1165         rows = gtk_tree_selection_get_selected_rows (sel, model);
1166
1167         if ((rows == NULL) || (g_list_length(rows) != 1))
1168                 goto frees;
1169
1170         path = gtk_tree_path_copy(g_list_nth_data (rows, 0));
1171
1172
1173         /* Free */
1174  frees:
1175         g_list_foreach(rows,(GFunc) gtk_tree_path_free, NULL);
1176         g_list_free(rows);
1177
1178         return path;
1179 }
1180
1181 /*
1182  * This function moves the tree view scroll to the current selected
1183  * row when the widget grabs the focus
1184  */
1185 static gboolean
1186 on_focus_in (GtkWidget     *self,
1187              GdkEventFocus *event,
1188              gpointer       user_data)
1189 {
1190         GtkTreeSelection *selection;
1191         GtkTreeModel *model;
1192         GList *selected = NULL;
1193         GtkTreePath *selected_path = NULL;
1194
1195         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
1196         if (!model)
1197                 return FALSE;
1198
1199         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
1200         /* If none selected yet, pick the first one */
1201         if (gtk_tree_selection_count_selected_rows (selection) == 0) {
1202                 GtkTreeIter iter;
1203                 GtkTreePath *path;
1204
1205                 /* Return if the model is empty */
1206                 if (!gtk_tree_model_get_iter_first (model, &iter))
1207                         return FALSE;
1208
1209                 path = gtk_tree_model_get_path (model, &iter);
1210                 gtk_tree_selection_select_path (selection, path);
1211                 gtk_tree_path_free (path);
1212         }
1213
1214         /* Need to get the all the rows because is selection multiple */
1215         selected = gtk_tree_selection_get_selected_rows (selection, &model);
1216         selected_path = (GtkTreePath *) selected->data;
1217
1218         /* Check if we need to scroll */
1219         #if GTK_CHECK_VERSION(2, 8, 0) /* TODO: gtk_tree_view_get_visible_range() is only available in GTK+ 2.8 */
1220         GtkTreePath *start_path = NULL;
1221         GtkTreePath *end_path = NULL;
1222         if (gtk_tree_view_get_visible_range (GTK_TREE_VIEW (self),
1223                                              &start_path,
1224                                              &end_path)) {
1225
1226                 if ((gtk_tree_path_compare (start_path, selected_path) != -1) ||
1227                     (gtk_tree_path_compare (end_path, selected_path) != 1)) {
1228
1229                         /* Scroll to first path */
1230                         gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (self),
1231                                                       selected_path,
1232                                                       NULL,
1233                                                       TRUE,
1234                                                       0.5,
1235                                                       0.0);
1236                 }
1237         }
1238         #endif /* GTK_CHECK_VERSION */
1239
1240         /* Frees */
1241         g_list_foreach (selected, (GFunc) gtk_tree_path_free, NULL);
1242         g_list_free (selected);
1243
1244         return FALSE;
1245 }