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 #include <modest-tny-folder.h>
  40
  41 #include <modest-marshal.h>
  42 #include <modest-text-utils.h>
  43 #include <modest-icon-names.h>
  44 #include <modest-runtime.h>
  45
  46 static void modest_header_view_class_init  (ModestHeaderViewClass *klass);
  47 static void modest_header_view_init        (ModestHeaderView *obj);
  48 static void modest_header_view_finalize    (GObject *obj);
  49
  50 static gboolean      on_header_clicked      (GtkWidget *widget,
  51                                             GdkEventButton *event,
  52                                             gpointer user_data);
  53
  54 static gint          cmp_rows               (GtkTreeModel *tree_model,
  55                                              GtkTreeIter *iter1,
  56                                              GtkTreeIter *iter2,
  57                                              gpointer user_data);
  58
  59 static void          on_selection_changed   (GtkTreeSelection *sel,
  60                                              gpointer user_data);
  61
  62 static void          setup_drag_and_drop    (GtkTreeView *self);
  63
  64 static GtkTreePath * get_selected_row       (GtkTreeView *self, GtkTreeModel **model);
  65
  66 static gboolean      on_focus_in            (GtkWidget     *sef,
  67                                              GdkEventFocus *event,
  68                                              gpointer       user_data);
  69
  70 typedef struct _ModestHeaderViewPrivate ModestHeaderViewPrivate;
  71 struct _ModestHeaderViewPrivate {
  72         TnyFolder            *folder;
  73         ModestHeaderViewStyle style;
  74
  75         TnyFolderMonitor     *monitor;
  76         GMutex               *monitor_lock;
  77         gint sort_colid[2][TNY_FOLDER_TYPE_NUM];
  78 };
  79
  80 #define MODEST_HEADER_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  81                                                 MODEST_TYPE_HEADER_VIEW, \
  82                                                 ModestHeaderViewPrivate))
  83
  84
  85
  86 #define MODEST_HEADER_VIEW_PTR "modest-header-view"
  87
  88 enum {
  89         HEADER_SELECTED_SIGNAL,
  90         HEADER_ACTIVATED_SIGNAL,
  91         ITEM_NOT_FOUND_SIGNAL,
  92         STATUS_UPDATE_SIGNAL,
  93         LAST_SIGNAL
  94 };
  95
  96 /* globals */
  97 static GObjectClass *parent_class = NULL;
  98
  99 /* uncomment the following if you have defined any signals */
 100 static guint signals[LAST_SIGNAL] = {0};
 101
 102 GType
 103 modest_header_view_get_type (void)
 104 {
 105         static GType my_type = 0;
 106         if (!my_type) {
 107                 static const GTypeInfo my_info = {
 108                         sizeof(ModestHeaderViewClass),
 109                         NULL,           /* base init */
 110                         NULL,           /* base finalize */
 111                         (GClassInitFunc) modest_header_view_class_init,
 112                         NULL,           /* class finalize */
 113                         NULL,           /* class data */
 114                         sizeof(ModestHeaderView),
 115                         1,              /* n_preallocs */
 116                         (GInstanceInitFunc) modest_header_view_init,
 117                         NULL
 118                 };
 119                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
 120                                                   "ModestHeaderView",
 121                                                   &my_info, 0);
 122         }
 123         return my_type;
 124 }
 125
 126 static void
 127 modest_header_view_class_init (ModestHeaderViewClass *klass)
 128 {
 129         GObjectClass *gobject_class;
 130         gobject_class = (GObjectClass*) klass;
 131
 132         parent_class            = g_type_class_peek_parent (klass);
 133         gobject_class->finalize = modest_header_view_finalize;
 134
 135         g_type_class_add_private (gobject_class, sizeof(ModestHeaderViewPrivate));
 136
 137         signals[HEADER_SELECTED_SIGNAL] =
 138                 g_signal_new ("header_selected",
 139                               G_TYPE_FROM_CLASS (gobject_class),
 140                               G_SIGNAL_RUN_FIRST,
 141                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_selected),
 142                               NULL, NULL,
 143                               g_cclosure_marshal_VOID__POINTER,
 144                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 145
 146         signals[HEADER_ACTIVATED_SIGNAL] =
 147                 g_signal_new ("header_activated",
 148                               G_TYPE_FROM_CLASS (gobject_class),
 149                               G_SIGNAL_RUN_FIRST,
 150                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_activated),
 151                               NULL, NULL,
 152                               g_cclosure_marshal_VOID__POINTER,
 153                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 154
 155
 156         signals[ITEM_NOT_FOUND_SIGNAL] =
 157                 g_signal_new ("item_not_found",
 158                               G_TYPE_FROM_CLASS (gobject_class),
 159                               G_SIGNAL_RUN_FIRST,
 160                               G_STRUCT_OFFSET (ModestHeaderViewClass,item_not_found),
 161                               NULL, NULL,
 162                               g_cclosure_marshal_VOID__INT,
 163                               G_TYPE_NONE, 1, G_TYPE_INT);
 164
 165         signals[STATUS_UPDATE_SIGNAL] =
 166                 g_signal_new ("status_update",
 167                               G_TYPE_FROM_CLASS (gobject_class),
 168                               G_SIGNAL_RUN_FIRST,
 169                               G_STRUCT_OFFSET (ModestHeaderViewClass,status_update),
 170                               NULL, NULL,
 171                               modest_marshal_VOID__STRING_INT_INT,
 172                               G_TYPE_NONE, 3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
 173 }
 174
 175 static GtkTreeViewColumn*
 176 get_new_column (const gchar *name, GtkCellRenderer *renderer,
 177                 gboolean resizable, gint sort_col_id, gboolean show_as_text,
 178                 GtkTreeCellDataFunc cell_data_func, gpointer user_data)
 179 {
 180         GtkTreeViewColumn *column;
 181
 182         column =  gtk_tree_view_column_new_with_attributes(name, renderer, NULL);
 183         gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
 184
 185         gtk_tree_view_column_set_resizable (column, resizable);
 186         if (resizable)
 187                 gtk_tree_view_column_set_expand (column, TRUE);
 188
 189         if (show_as_text)
 190                 gtk_tree_view_column_add_attribute (column, renderer, "text",
 191                                                     sort_col_id);
 192         if (sort_col_id >= 0)
 193                 gtk_tree_view_column_set_sort_column_id (column, sort_col_id);
 194
 195         gtk_tree_view_column_set_sort_indicator (column, FALSE);
 196         gtk_tree_view_column_set_reorderable (column, TRUE);
 197
 198         if (cell_data_func)
 199                 gtk_tree_view_column_set_cell_data_func(column, renderer, cell_data_func,
 200                                                         user_data, NULL);
 201         return column;
 202 }
 203
 204
 205
 206
 207 static void
 208 remove_all_columns (ModestHeaderView *obj)
 209 {
 210         GList *columns, *cursor;
 211
 212         columns = gtk_tree_view_get_columns (GTK_TREE_VIEW(obj));
 213
 214         for (cursor = columns; cursor; cursor = cursor->next)
 215                 gtk_tree_view_remove_column (GTK_TREE_VIEW(obj),
 216                                              GTK_TREE_VIEW_COLUMN(cursor->data));
 217         g_list_free (columns);
 218 }
 219
 220 gboolean
 221 modest_header_view_set_columns (ModestHeaderView *self, const GList *columns, TnyFolderType type)
 222 {
 223         GtkTreeModel *sortable;
 224         GtkTreeViewColumn *column=NULL;
 225         GtkTreeSelection *selection = NULL;
 226         GtkCellRenderer *renderer_msgtype,*renderer_header,
 227                 *renderer_attach,  *renderer_comptact_flag,
 228                 *renderer_compact_date;
 229         ModestHeaderViewPrivate *priv;
 230         const GList *cursor;
 231
 232         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 233
 234         /* FIXME: check whether these renderers need to be freed */
 235         renderer_msgtype = gtk_cell_renderer_pixbuf_new ();
 236         renderer_attach  = gtk_cell_renderer_pixbuf_new ();
 237         renderer_header  = gtk_cell_renderer_text_new ();
 238         renderer_comptact_flag  = gtk_cell_renderer_pixbuf_new ();
 239         renderer_compact_date  = gtk_cell_renderer_text_new ();
 240
 241         g_object_set(G_OBJECT(renderer_header),
 242                      "ellipsize", PANGO_ELLIPSIZE_END,
 243                      NULL);
 244         g_object_set(G_OBJECT(renderer_compact_date),
 245                      "xalign", 1.0,
 246                      NULL);
 247
 248         remove_all_columns (self);
 249
 250         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 251         gtk_tree_selection_set_mode(selection, GTK_SELECTION_MULTIPLE);
 252         sortable = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 253
 254         /* Add new columns */
 255         for (cursor = columns; cursor; cursor = g_list_next(cursor)) {
 256                 ModestHeaderViewColumn col =
 257                         (ModestHeaderViewColumn) GPOINTER_TO_INT(cursor->data);
 258
 259                 if (0> col || col >= MODEST_HEADER_VIEW_COLUMN_NUM) {
 260                         g_printerr ("modest: invalid column %d in column list\n", col);
 261                         continue;
 262                 }
 263
 264                 switch (col) {
 265
 266                 case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
 267                         column = get_new_column (_("M"), renderer_msgtype, FALSE,
 268                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 269                                                  FALSE,
 270                                                  (GtkTreeCellDataFunc)_modest_header_view_msgtype_cell_data,
 271                                                  NULL);
 272                         gtk_tree_view_column_set_fixed_width (column, 45);
 273                         break;
 274
 275                 case MODEST_HEADER_VIEW_COLUMN_ATTACH:
 276                         column = get_new_column (_("A"), renderer_attach, FALSE,
 277                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 278                                                  FALSE,
 279                                                  (GtkTreeCellDataFunc)_modest_header_view_attach_cell_data,
 280                                                  NULL);
 281                         gtk_tree_view_column_set_fixed_width (column, 45);
 282                         break;
 283
 284
 285                 case MODEST_HEADER_VIEW_COLUMN_FROM:
 286                         column = get_new_column (_("From"), renderer_header, TRUE,
 287                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 288                                                  TRUE,
 289                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 290                                                  GINT_TO_POINTER(TRUE));
 291                         break;
 292
 293                 case MODEST_HEADER_VIEW_COLUMN_TO:
 294                         column = get_new_column (_("To"), renderer_header, TRUE,
 295                                                  TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN,
 296                                                  TRUE,
 297                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 298                                                  GINT_TO_POINTER(FALSE));
 299                         break;
 300
 301                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_FLAG:
 302                         column = get_new_column (_("F"), renderer_comptact_flag, FALSE,
 303                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 304                                                  FALSE,
 305                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_flag_cell_data,
 306                                                  NULL);
 307                         gtk_tree_view_column_set_fixed_width (column, 45);
 308                         break;
 309
 310                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 311                         column = get_new_column (_("Header"), renderer_header, TRUE,
 312                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 313                                                  TRUE,
 314                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 315                                                  GINT_TO_POINTER(TRUE));
 316                         break;
 317
 318                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
 319                         column = get_new_column (_("Header"), renderer_header, TRUE,
 320                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 321                                                  TRUE,
 322                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 323                                                  GINT_TO_POINTER(FALSE));
 324                         break;
 325
 326
 327                 case MODEST_HEADER_VIEW_COLUMN_SUBJECT:
 328                         column = get_new_column (_("Subject"), renderer_header, TRUE,
 329                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 330                                                  TRUE,
 331                                                  (GtkTreeCellDataFunc)_modest_header_view_header_cell_data,
 332                                                  NULL);
 333                         break;
 334
 335                 case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
 336                         column = get_new_column (_("Received"), renderer_header, TRUE,
 337                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 338                                                  TRUE,
 339                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 340                                                  GINT_TO_POINTER(TRUE));
 341                         break;
 342
 343                 case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
 344                         column = get_new_column (_("Sent"), renderer_header, TRUE,
 345                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 346                                                  TRUE,
 347                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 348                                                  GINT_TO_POINTER(FALSE));
 349                         break;
 350
 351                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_RECEIVED_DATE:
 352                         column = get_new_column (_("Received"), renderer_compact_date, FALSE,
 353                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 354                                                  TRUE,
 355                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_date_cell_data,
 356                                                  GINT_TO_POINTER(TRUE));
 357                         gtk_tree_view_column_set_fixed_width (column, 130);
 358                         break;
 359
 360                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_SENT_DATE:
 361                         column = get_new_column (_("Sent"), renderer_compact_date, FALSE,
 362                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 363                                                  TRUE,
 364                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_date_cell_data,
 365                                                  GINT_TO_POINTER(FALSE));
 366                         gtk_tree_view_column_set_fixed_width (column, 130);
 367                         break;
 368                 case MODEST_HEADER_VIEW_COLUMN_SIZE:
 369                         column = get_new_column (_("Size"), renderer_header, TRUE,
 370                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 371                                                  FALSE,
 372                                                  (GtkTreeCellDataFunc)_modest_header_view_size_cell_data,
 373                                                  NULL);
 374                         break;
 375                 case MODEST_HEADER_VIEW_COLUMN_STATUS:
 376                         column = get_new_column (_("Status"), renderer_compact_date, TRUE,
 377                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 378                                                  FALSE,
 379                                                  (GtkTreeCellDataFunc)_modest_header_view_status_cell_data,
 380                                                  NULL);
 381                         break;
 382
 383                 default:
 384                         g_return_val_if_reached(FALSE);
 385                 }
 386
 387                 /* we keep the column id around */
 388                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_COLUMN,
 389                                    GINT_TO_POINTER(col));
 390
 391                 /* we need this ptr when sorting the rows */
 392                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_PTR,
 393                                    self);
 394                 gtk_tree_view_append_column (GTK_TREE_VIEW(self), column);
 395         }
 396
 397
 398         return TRUE;
 399 }
 400
 401 static void
 402 modest_header_view_init (ModestHeaderView *obj)
 403 {
 404         ModestHeaderViewPrivate *priv;
 405         guint i, j;
 406
 407         priv = MODEST_HEADER_VIEW_GET_PRIVATE(obj);
 408
 409         priv->folder  = NULL;
 410
 411         priv->monitor        = NULL;
 412         priv->monitor_lock   = g_mutex_new ();
 413         for (j=0; j < 2; j++)
 414                 for (i=0; i < TNY_FOLDER_TYPE_NUM; i++)
 415                         priv->sort_colid[j][i] = -1;
 416
 417         setup_drag_and_drop (GTK_TREE_VIEW (obj));
 418 }
 419
 420 static void
 421 modest_header_view_finalize (GObject *obj)
 422 {
 423         ModestHeaderView        *self;
 424         ModestHeaderViewPrivate *priv;
 425
 426         self = MODEST_HEADER_VIEW(obj);
 427         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 428
 429         g_mutex_lock (priv->monitor_lock);
 430         if (priv->monitor) {
 431                 tny_folder_monitor_stop (priv->monitor);
 432                 g_object_unref (G_OBJECT (priv->monitor));
 433         }
 434         g_mutex_unlock (priv->monitor_lock);
 435         g_mutex_free (priv->monitor_lock);
 436
 437         if (priv->folder) {
 438                 g_object_unref (G_OBJECT (priv->folder));
 439                 priv->folder   = NULL;
 440         }
 441
 442         G_OBJECT_CLASS(parent_class)->finalize (obj);
 443 }
 444
 445
 446 GtkWidget*
 447 modest_header_view_new (TnyFolder *folder, ModestHeaderViewStyle style)
 448 {
 449         GObject *obj;
 450         GtkTreeSelection *sel;
 451         ModestHeaderView *self;
 452         ModestHeaderViewPrivate *priv;
 453
 454         g_return_val_if_fail (style >= 0 && style < MODEST_HEADER_VIEW_STYLE_NUM,
 455                               NULL);
 456
 457         obj  = G_OBJECT(g_object_new(MODEST_TYPE_HEADER_VIEW, NULL));
 458         self = MODEST_HEADER_VIEW(obj);
 459         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 460
 461         modest_header_view_set_style   (self, style);
 462         modest_header_view_set_folder (self, NULL);
 463
 464         gtk_tree_view_columns_autosize (GTK_TREE_VIEW(obj));
 465         gtk_tree_view_set_fixed_height_mode (GTK_TREE_VIEW(obj),TRUE);
 466         gtk_tree_view_set_enable_search (GTK_TREE_VIEW(obj), TRUE);
 467
 468         gtk_tree_view_set_rules_hint (GTK_TREE_VIEW(obj),
 469                                       TRUE); /* alternating row colors */
 470         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 471
 472         g_signal_connect (sel, "changed",
 473                           G_CALLBACK(on_selection_changed), self);
 474
 475         g_signal_connect (self, "button-press-event",
 476                           G_CALLBACK(on_header_clicked), NULL);
 477
 478         g_signal_connect (self, "focus-in-event",
 479                           G_CALLBACK(on_focus_in), NULL);
 480
 481         return GTK_WIDGET(self);
 482 }
 483
 484
 485 TnyList *
 486 modest_header_view_get_selected_headers (ModestHeaderView *self)
 487 {
 488         GtkTreeSelection *sel;
 489         ModestHeaderViewPrivate *priv;
 490         TnyList *header_list = NULL;
 491         TnyHeader *header;
 492         GList *list, *tmp = NULL;
 493         GtkTreeModel *tree_model = NULL;
 494         GtkTreeIter iter;
 495
 496         g_return_val_if_fail (self, NULL);
 497
 498         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 499
 500         /* Get selected rows */
 501         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 502         list = gtk_tree_selection_get_selected_rows (sel, &tree_model);
 503
 504         if (list) {
 505                 header_list = tny_simple_list_new();
 506
 507                 list = g_list_reverse (list);
 508                 tmp = list;
 509                 while (tmp) {
 510                         /* get header from selection */
 511                         gtk_tree_model_get_iter (tree_model, &iter, (GtkTreePath *) (tmp->data));
 512                         gtk_tree_model_get (tree_model, &iter,
 513                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 514                                             &header, -1);
 515                         /* Prepend to list */
 516                         tny_list_prepend (header_list, G_OBJECT (header));
 517                         g_object_unref (G_OBJECT (header));
 518
 519                         tmp = g_list_next (tmp);
 520                 }
 521                 /* Clean up*/
 522                 g_list_foreach (list, (GFunc) gtk_tree_path_free, NULL);
 523                 g_list_free (list);
 524         }
 525         return header_list;
 526 }
 527
 528
 529 /* scroll our list view so the selected item is visible */
 530 static void
 531 scroll_to_selected (ModestHeaderView *self, GtkTreeIter *iter, gboolean up)
 532 {
 533 #ifdef MODEST_PLATFORM_GNOME
 534
 535         GtkTreePath *selected_path;
 536         GtkTreePath *start, *end;
 537
 538         GtkTreeModel *model;
 539
 540         model         = gtk_tree_view_get_model (GTK_TREE_VIEW(self));
 541         selected_path = gtk_tree_model_get_path (model, iter);
 542
 543         start = gtk_tree_path_new ();
 544         end   = gtk_tree_path_new ();
 545
 546         gtk_tree_view_get_visible_range (GTK_TREE_VIEW(self), &start, &end);
 547
 548         if (gtk_tree_path_compare (selected_path, start) < 0 ||
 549             gtk_tree_path_compare (end, selected_path) < 0)
 550                 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW(self),
 551                                               selected_path, NULL, TRUE,
 552                                               up ? 0.0 : 1.0,
 553                                               up ? 0.0 : 1.0);
 554         gtk_tree_path_free (selected_path);
 555         gtk_tree_path_free (start);
 556         gtk_tree_path_free (end);
 557
 558 #endif /* MODEST_PLATFORM_GNOME */
 559 }
 560
 561
 562 void
 563 modest_header_view_select_next (ModestHeaderView *self)
 564 {
 565         GtkTreeSelection *sel;
 566         GtkTreeIter iter;
 567         GtkTreeModel *model;
 568         GtkTreePath *path;
 569
 570         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 571         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 572         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 573                 /* Unselect previous path */
 574                 gtk_tree_selection_unselect_path (sel, path);
 575
 576                 /* Move path down and selects new one  */
 577                 if (gtk_tree_model_iter_next (model, &iter)) {
 578                         gtk_tree_selection_select_iter (sel, &iter);
 579                         scroll_to_selected (self, &iter, FALSE);
 580                 }
 581                 gtk_tree_path_free(path);
 582         }
 583
 584 }
 585
 586 void
 587 modest_header_view_select_prev (ModestHeaderView *self)
 588 {
 589         GtkTreeSelection *sel;
 590         GtkTreeIter iter;
 591         GtkTreeModel *model;
 592         GtkTreePath *path;
 593
 594         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 595         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 596         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 597                 /* Unselect previous path */
 598                 gtk_tree_selection_unselect_path (sel, path);
 599
 600                 /* Move path up */
 601                 if (gtk_tree_path_prev (path)) {
 602                         gtk_tree_model_get_iter (model, &iter, path);
 603
 604                         /* Select the new one */
 605                         gtk_tree_selection_select_iter (sel, &iter);
 606                         scroll_to_selected (self, &iter, TRUE);
 607
 608                 }
 609                 gtk_tree_path_free (path);
 610         }
 611 }
 612
 613 GList*
 614 modest_header_view_get_columns (ModestHeaderView *self)
 615 {
 616         g_return_val_if_fail (self, FALSE);
 617         return gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 618 }
 619
 620 gboolean
 621 modest_header_view_is_empty (ModestHeaderView *self)
 622 {
 623         g_return_val_if_fail (self, FALSE);
 624         return FALSE; /* FIXME */
 625 }
 626
 627
 628 gboolean
 629 modest_header_view_set_style (ModestHeaderView *self,
 630                               ModestHeaderViewStyle style)
 631 {
 632         ModestHeaderViewPrivate *priv;
 633         gboolean show_col_headers = FALSE;
 634         ModestHeaderViewStyle old_style;
 635
 636         g_return_val_if_fail (self, FALSE);
 637         g_return_val_if_fail (style >= 0 && MODEST_HEADER_VIEW_STYLE_NUM,
 638                               FALSE);
 639
 640         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 641         if (priv->style == style)
 642                 return TRUE; /* nothing to do */
 643
 644         switch (style) {
 645         case MODEST_HEADER_VIEW_STYLE_DETAILS:
 646                 show_col_headers = TRUE;
 647                 break;
 648         case MODEST_HEADER_VIEW_STYLE_TWOLINES:
 649                 break;
 650         default:
 651                 g_return_val_if_reached (FALSE);
 652         }
 653         gtk_tree_view_set_headers_visible   (GTK_TREE_VIEW(self), show_col_headers);
 654         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(self), show_col_headers);
 655
 656         old_style   = priv->style;
 657         priv->style = style;
 658
 659         return TRUE;
 660 }
 661
 662
 663 ModestHeaderViewStyle
 664 modest_header_view_get_style (ModestHeaderView *self)
 665 {
 666         g_return_val_if_fail (self, FALSE);
 667         return MODEST_HEADER_VIEW_GET_PRIVATE(self)->style;
 668 }
 669
 670 /*
 671  * This function sets a sortable model in the header view. It's just
 672  * used for developing purposes, because it only does a
 673  * gtk_tree_view_set_model
 674  */
 675 static void
 676 modest_header_view_set_model (GtkTreeView *header_view, GtkTreeModel *model)
 677 {
 678         GtkTreeModel *old_model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
 679
 680         if (old_model_sort && GTK_IS_TREE_MODEL_SORT (old_model_sort)) {
 681                 GtkTreeModel *old_model;
 682                 ModestHeaderViewPrivate *priv;
 683
 684                 priv = MODEST_HEADER_VIEW_GET_PRIVATE (header_view);
 685                 old_model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (old_model_sort));
 686
 687                 /* Set new model */
 688                 gtk_tree_view_set_model (header_view, model);
 689         } else
 690                 gtk_tree_view_set_model (header_view, model);
 691
 692         return;
 693 }
 694
 695 static void
 696 on_progress_changed (ModestMailOperation *mail_op,
 697                      ModestHeaderView *self)
 698 {
 699         TnyFolderType type;
 700         GtkTreeModel *sortable;
 701         ModestHeaderViewPrivate *priv;
 702         GList *cols, *cursor;
 703         TnyList *headers;
 704         guint sort_colid;
 705
 706         if (!modest_mail_operation_is_finished (mail_op))
 707                 return;
 708
 709         if (modest_mail_operation_get_error (mail_op))
 710                 return;
 711
 712         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 713
 714         headers = TNY_LIST (tny_gtk_header_list_model_new ());
 715
 716         tny_gtk_header_list_model_set_folder (TNY_GTK_HEADER_LIST_MODEL(headers),
 717                                               priv->folder, TRUE);
 718
 719         sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(headers));
 720         g_object_unref (G_OBJECT (headers));
 721
 722         /* install our special sorting functions */
 723         cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 724         while (cursor) {
 725                 gint col_id = GPOINTER_TO_INT (g_object_get_data(G_OBJECT(cursor->data),
 726                                                                  MODEST_HEADER_VIEW_COLUMN));
 727                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 728                                                  col_id,
 729                                                  (GtkTreeIterCompareFunc) cmp_rows,
 730                                                  cursor->data, NULL);
 731                 cursor = g_list_next(cursor);
 732         }
 733         g_list_free (cols);
 734
 735         /* Restore sort column id */
 736         type  = modest_tny_folder_guess_folder_type (priv->folder);
 737         sort_colid = modest_header_view_get_sort_column_id (self, type);
 738         gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 739                                               sort_colid,
 740                                               GTK_SORT_ASCENDING);
 741
 742         /* Set new model */
 743         modest_header_view_set_model (GTK_TREE_VIEW (self), sortable);
 744         g_object_unref (G_OBJECT (sortable));
 745
 746         /* Add a folder observer */
 747         g_mutex_lock (priv->monitor_lock);
 748         priv->monitor = TNY_FOLDER_MONITOR (tny_folder_monitor_new (priv->folder));
 749         tny_folder_monitor_add_list (priv->monitor, TNY_LIST (headers));
 750         tny_folder_monitor_start (priv->monitor);
 751         g_mutex_unlock (priv->monitor_lock);
 752
 753 }
 754
 755 TnyFolder*
 756 modest_header_view_get_folder (ModestHeaderView *self)
 757 {
 758         ModestHeaderViewPrivate *priv;
 759         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 760
 761         if (priv->folder)
 762                 g_object_ref (priv->folder);
 763
 764         return priv->folder;
 765 }
 766
 767 static void
 768 modest_header_view_set_folder_intern (ModestHeaderView *self, TnyFolder *folder)
 769 {
 770         TnyFolderType type;
 771         TnyList *headers;
 772         ModestHeaderViewPrivate *priv;
 773         GList *cols, *cursor;
 774         GtkTreeModel *sortable;
 775         guint sort_colid;
 776
 777         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 778
 779         headers = TNY_LIST (tny_gtk_header_list_model_new ());
 780
 781         tny_gtk_header_list_model_set_folder (TNY_GTK_HEADER_LIST_MODEL(headers),
 782                                               folder, FALSE);
 783
 784         /* Add a folder observer */
 785         g_mutex_lock (priv->monitor_lock);
 786         if (priv->monitor) {
 787                 tny_folder_monitor_stop (priv->monitor);
 788                 g_object_unref (G_OBJECT (priv->monitor));
 789         }
 790         priv->monitor = TNY_FOLDER_MONITOR (tny_folder_monitor_new (folder));
 791         tny_folder_monitor_add_list (priv->monitor, TNY_LIST (headers));
 792         tny_folder_monitor_start (priv->monitor);
 793         g_mutex_unlock (priv->monitor_lock);
 794
 795
 796         sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(headers));
 797         g_object_unref (G_OBJECT (headers));
 798
 799         /* install our special sorting functions */
 800         cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 801         while (cursor) {
 802                 gint col_id = GPOINTER_TO_INT (g_object_get_data(G_OBJECT(cursor->data),
 803                                                                  MODEST_HEADER_VIEW_COLUMN));
 804                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 805                                                  col_id,
 806                                                  (GtkTreeIterCompareFunc) cmp_rows,
 807                                                  cursor->data, NULL);
 808                 cursor = g_list_next(cursor);
 809         }
 810         g_list_free (cols);
 811
 812         /* Restore sort column id */
 813         type  = modest_tny_folder_guess_folder_type (folder);
 814         sort_colid = modest_header_view_get_sort_column_id (self, type);
 815         gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 816                                               sort_colid,
 817                                               GTK_SORT_ASCENDING);
 818
 819         /* Set new model */
 820         modest_header_view_set_model (GTK_TREE_VIEW (self), sortable);
 821         g_object_unref (G_OBJECT (sortable));
 822 }
 823
 824 void
 825 modest_header_view_set_sort_column_id (ModestHeaderView *self, guint sort_colid, TnyFolderType type)
 826 {
 827         ModestHeaderViewPrivate *priv;
 828         ModestHeaderViewStyle style;
 829
 830         style = modest_header_view_get_style   (self);
 831         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 832
 833         priv->sort_colid[style][type] = sort_colid;
 834 }
 835
 836 gint
 837 modest_header_view_get_sort_column_id (ModestHeaderView *self, TnyFolderType type)
 838 {
 839         ModestHeaderViewPrivate *priv;
 840         ModestHeaderViewStyle style;
 841
 842         style = modest_header_view_get_style   (self);
 843         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 844
 845         return priv->sort_colid[style][type];
 846 }
 847
 848 void
 849 modest_header_view_set_folder (ModestHeaderView *self, TnyFolder *folder)
 850 {
 851         ModestHeaderViewPrivate *priv;
 852
 853         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 854
 855         if (priv->folder) {
 856                 g_object_unref (priv->folder);
 857                 priv->folder = NULL;
 858         }
 859
 860         if (folder) {
 861                 ModestMailOperation *mail_op;
 862
 863                 modest_header_view_set_folder_intern (self, folder);
 864
 865                 /* Pick my reference. Nothing to do with the mail operation */
 866                 priv->folder = g_object_ref (folder);
 867
 868                 /* no message selected */
 869                 g_signal_emit (G_OBJECT(self), signals[HEADER_SELECTED_SIGNAL], 0, NULL);
 870
 871                 /* Create the mail operation */
 872                 mail_op = modest_mail_operation_new ();
 873                 modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
 874                                                  mail_op);
 875
 876                 /* Register a mail operation observer */
 877                 g_signal_connect (mail_op, "progress-changed",
 878                                   G_CALLBACK (on_progress_changed), self);
 879
 880                 /* Refresh the folder asynchronously */
 881                 modest_mail_operation_refresh_folder (mail_op, folder);
 882
 883                 /* Free */
 884                 g_object_unref (mail_op);
 885
 886         } else {
 887                 g_mutex_lock (priv->monitor_lock);
 888                 modest_header_view_set_model (GTK_TREE_VIEW (self), NULL);
 889
 890                 if (priv->monitor) {
 891                         tny_folder_monitor_stop (priv->monitor);
 892                         g_object_unref (G_OBJECT (priv->monitor));
 893                         priv->monitor = NULL;
 894                 }
 895                 g_mutex_unlock (priv->monitor_lock);
 896         }
 897 }
 898
 899 static gboolean
 900 on_header_clicked (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
 901 {
 902         ModestHeaderView *self = NULL;
 903         ModestHeaderViewPrivate *priv = NULL;
 904         GtkTreePath *path = NULL;
 905         GtkTreeIter iter;
 906         GtkTreeModel *model = NULL;
 907         TnyHeader *header;
 908         /* ignore everything but doubleclick */
 909         if (event->type != GDK_2BUTTON_PRESS)
 910                 return FALSE;
 911
 912         self = MODEST_HEADER_VIEW (widget);
 913         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 914
 915         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 916         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
 917                 return FALSE;
 918
 919         /* get the first selected item */
 920         gtk_tree_model_get (model, &iter,
 921                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 922                             &header, -1);
 923         /* Emit signal */
 924         g_signal_emit (G_OBJECT(self),
 925                        signals[HEADER_ACTIVATED_SIGNAL],
 926                        0, header);
 927
 928         /* Free */
 929         g_object_unref (G_OBJECT (header));
 930         gtk_tree_path_free(path);
 931
 932         return TRUE;
 933 }
 934
 935
 936 static void
 937 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
 938 {
 939         GtkTreeModel *model;
 940         TnyHeader *header;
 941         GtkTreePath *path = NULL;
 942         GtkTreeIter iter;
 943         ModestHeaderView *self;
 944         ModestHeaderViewPrivate *priv;
 945
 946         g_return_if_fail (sel);
 947         g_return_if_fail (user_data);
 948
 949         self = MODEST_HEADER_VIEW (user_data);
 950         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 951
 952         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 953         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
 954                 return; /* msg was _un_selected */
 955
 956         gtk_tree_model_get (model, &iter,
 957                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 958                             &header, -1);
 959
 960         /* Emit signal */
 961         g_signal_emit (G_OBJECT(self),
 962                        signals[HEADER_SELECTED_SIGNAL],
 963                        0, header);
 964
 965         g_object_unref (G_OBJECT (header));
 966         gtk_tree_path_free(path);
 967 }
 968
 969
 970 /* PROTECTED method. It's useful when we want to force a given
 971    selection to reload a msg. For example if we have selected a header
 972    in offline mode, when Modest become online, we want to reload the
 973    message automatically without an user click over the header */
 974 void
 975 _modest_header_view_change_selection (GtkTreeSelection *selection,
 976                                       gpointer user_data)
 977 {
 978         g_return_if_fail (GTK_IS_TREE_SELECTION (selection));
 979         g_return_if_fail (MODEST_IS_HEADER_VIEW (user_data));
 980
 981         on_selection_changed (selection, user_data);
 982 }
 983
 984
 985 static gint
 986 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
 987           gpointer user_data)
 988 {
 989         gint col_id;
 990         gint t1, t2;
 991         gint val1, val2;
 992         gchar *s1, *s2;
 993         gint cmp;
 994         static int counter = 0;
 995
 996         g_return_val_if_fail (G_IS_OBJECT(user_data), 0);
 997         col_id = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(user_data), MODEST_HEADER_VIEW_COLUMN));
 998
 999         if (!(++counter % 100)) {
1000                 GObject *header_view = g_object_get_data(G_OBJECT(user_data),
1001                                                          MODEST_HEADER_VIEW_PTR);
1002                 g_signal_emit (header_view,
1003                                signals[STATUS_UPDATE_SIGNAL],
1004                                0, _("Sorting..."), 0, 0);
1005         }
1006         switch (col_id) {
1007
1008                 /* first one, we decide based on the time */
1009         case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
1010         case MODEST_HEADER_VIEW_COLUMN_COMPACT_RECEIVED_DATE:
1011         case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
1012
1013                 gtk_tree_model_get (tree_model, iter1,
1014                                     TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
1015                                     &t1,-1);
1016                 gtk_tree_model_get (tree_model, iter2,
1017                                     TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
1018                                     &t2,-1);
1019                 return t1 - t2;
1020
1021         case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
1022         case MODEST_HEADER_VIEW_COLUMN_COMPACT_SENT_DATE:
1023         case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
1024                 gtk_tree_model_get (tree_model, iter1,
1025                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
1026                                     &t1,-1);
1027                 gtk_tree_model_get (tree_model, iter2,
1028                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
1029                                     &t2,-1);
1030                 return t1 - t2;
1031
1032
1033                 /* next ones, we try the search criteria first, if they're the same, then we use 'sent date' */
1034                 /* FIXME: what about received-date? */
1035         case MODEST_HEADER_VIEW_COLUMN_SUBJECT: {
1036
1037                 gtk_tree_model_get (tree_model, iter1,
1038                                     TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &s1,
1039                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
1040                                     -1);
1041                 gtk_tree_model_get (tree_model, iter2,
1042                                     TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &s2,
1043                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
1044                                     -1);
1045
1046                 /* the prefix ('Re:', 'Fwd:' etc.) we ignore */
1047                 cmp = modest_text_utils_utf8_strcmp (s1 + modest_text_utils_get_subject_prefix_len(s1),
1048                                                      s2 + modest_text_utils_get_subject_prefix_len(s2),
1049                                                      TRUE);
1050                 g_free (s1);
1051                 g_free (s2);
1052
1053                 return cmp ? cmp : t1 - t2;
1054         }
1055
1056         case MODEST_HEADER_VIEW_COLUMN_FROM:
1057
1058                 gtk_tree_model_get (tree_model, iter1,
1059                                     TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN, &s1,
1060                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
1061                                     -1);
1062                 gtk_tree_model_get (tree_model, iter2,
1063                                     TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN, &s2,
1064                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
1065                                     -1);
1066                 cmp = modest_text_utils_utf8_strcmp (s1, s2, TRUE);
1067                 g_free (s1);
1068                 g_free (s2);
1069
1070                 return cmp ? cmp : t1 - t2;
1071
1072         case MODEST_HEADER_VIEW_COLUMN_TO:
1073
1074                 gtk_tree_model_get (tree_model, iter1,
1075                                     TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN, &s1,
1076                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
1077                                     -1);
1078                 gtk_tree_model_get (tree_model, iter2,
1079                                     TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN, &s2,
1080                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
1081                                     -1);
1082                 cmp = modest_text_utils_utf8_strcmp (s1, s2, TRUE);
1083                 g_free (s1);
1084                 g_free (s2);
1085
1086                 return cmp ? cmp : t1 - t2;
1087
1088         case MODEST_HEADER_VIEW_COLUMN_ATTACH:
1089
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
1095                 cmp = (val1 & TNY_HEADER_FLAG_ATTACHMENTS) -
1096                         (val2 & TNY_HEADER_FLAG_ATTACHMENTS);
1097
1098                 return cmp ? cmp : t1 - t2;
1099
1100         case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
1101                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1102                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,-1);
1103                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1104                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,-1);
1105                 cmp =  (val1 & TNY_HEADER_FLAG_SEEN) - (val2 & TNY_HEADER_FLAG_SEEN);
1106
1107                 return cmp ? cmp : t1 - t2;
1108
1109         default:
1110                 return &iter1 - &iter2; /* oughhhh  */
1111         }
1112 }
1113
1114 /* Drag and drop stuff */
1115 static void
1116 drag_data_get_cb (GtkWidget *widget, GdkDragContext *context,
1117                   GtkSelectionData *selection_data,
1118                   guint info,  guint time, gpointer data)
1119 {
1120         GtkTreeModel *model;
1121         GtkTreeIter iter;
1122         GtkTreePath *source_row;
1123
1124         source_row = get_selected_row (GTK_TREE_VIEW(widget), &model);
1125         if ((source_row == NULL) || (!gtk_tree_model_get_iter(model, &iter, source_row))) return;
1126
1127         switch (info) {
1128         case MODEST_HEADER_ROW:
1129                 gtk_tree_set_row_drag_data (selection_data, model, source_row);
1130                 break;
1131         case MODEST_MSG: {
1132                 TnyHeader *hdr;
1133                 gtk_tree_model_get (model, &iter,
1134                                     TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN, &hdr,
1135                                     -1);
1136                 if (hdr) {
1137                         g_object_unref (G_OBJECT(hdr));
1138                 }
1139                 break;
1140         }
1141         default:
1142                 g_message ("default");
1143         }
1144
1145         gtk_tree_path_free (source_row);
1146 }
1147
1148 /* Header view drag types */
1149 const GtkTargetEntry header_view_drag_types[] = {
1150         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP, MODEST_HEADER_ROW },
1151         { "text/uri-list",      0,                   MODEST_MSG },
1152
1153 };
1154
1155 static void
1156 setup_drag_and_drop (GtkTreeView *self)
1157 {
1158         gtk_drag_source_set (GTK_WIDGET (self),
1159                              GDK_BUTTON1_MASK,
1160                              header_view_drag_types,
1161                              G_N_ELEMENTS (header_view_drag_types),
1162                              GDK_ACTION_MOVE | GDK_ACTION_COPY);
1163
1164         g_signal_connect(G_OBJECT (self), "drag_data_get",
1165                          G_CALLBACK(drag_data_get_cb), NULL);
1166 }
1167
1168 static GtkTreePath *
1169 get_selected_row (GtkTreeView *self, GtkTreeModel **model)
1170 {
1171         GtkTreePath *path = NULL;
1172         GtkTreeSelection *sel = NULL;
1173         GList *rows = NULL;
1174
1175         sel   = gtk_tree_view_get_selection(self);
1176         rows = gtk_tree_selection_get_selected_rows (sel, model);
1177
1178         if ((rows == NULL) || (g_list_length(rows) != 1))
1179                 goto frees;
1180
1181         path = gtk_tree_path_copy(g_list_nth_data (rows, 0));
1182
1183
1184         /* Free */
1185  frees:
1186         g_list_foreach(rows,(GFunc) gtk_tree_path_free, NULL);
1187         g_list_free(rows);
1188
1189         return path;
1190 }
1191
1192 /*
1193  * This function moves the tree view scroll to the current selected
1194  * row when the widget grabs the focus
1195  */
1196 static gboolean
1197 on_focus_in (GtkWidget     *self,
1198              GdkEventFocus *event,
1199              gpointer       user_data)
1200 {
1201         GtkTreeSelection *selection;
1202         GtkTreeModel *model;
1203         GList *selected = NULL;
1204         GtkTreePath *selected_path = NULL;
1205
1206         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
1207         if (!model)
1208                 return FALSE;
1209
1210         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
1211         /* If none selected yet, pick the first one */
1212         if (gtk_tree_selection_count_selected_rows (selection) == 0) {
1213                 GtkTreeIter iter;
1214                 GtkTreePath *path;
1215
1216                 /* Return if the model is empty */
1217                 if (!gtk_tree_model_get_iter_first (model, &iter))
1218                         return FALSE;
1219
1220                 path = gtk_tree_model_get_path (model, &iter);
1221                 gtk_tree_selection_select_path (selection, path);
1222                 gtk_tree_path_free (path);
1223         }
1224
1225         /* Need to get the all the rows because is selection multiple */
1226         selected = gtk_tree_selection_get_selected_rows (selection, &model);
1227         selected_path = (GtkTreePath *) selected->data;
1228
1229         /* Check if we need to scroll */
1230         #if GTK_CHECK_VERSION(2, 8, 0) /* TODO: gtk_tree_view_get_visible_range() is only available in GTK+ 2.8 */
1231         GtkTreePath *start_path = NULL;
1232         GtkTreePath *end_path = NULL;
1233         if (gtk_tree_view_get_visible_range (GTK_TREE_VIEW (self),
1234                                              &start_path,
1235                                              &end_path)) {
1236
1237                 if ((gtk_tree_path_compare (start_path, selected_path) != -1) ||
1238                     (gtk_tree_path_compare (end_path, selected_path) != 1)) {
1239
1240                         /* Scroll to first path */
1241                         gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (self),
1242                                                       selected_path,
1243                                                       NULL,
1244                                                       TRUE,
1245                                                       0.5,
1246                                                       0.0);
1247                 }
1248         }
1249         #endif /* GTK_CHECK_VERSION */
1250
1251         /* Frees */
1252         g_list_foreach (selected, (GFunc) gtk_tree_path_free, NULL);
1253         g_list_free (selected);
1254
1255         return FALSE;
1256 }