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 #include "modest-platform.h"
  46 #include <modest-hbox-cell-renderer.h>
  47 #include <modest-vbox-cell-renderer.h>
  48
  49 static void modest_header_view_class_init  (ModestHeaderViewClass *klass);
  50 static void modest_header_view_init        (ModestHeaderView *obj);
  51 static void modest_header_view_finalize    (GObject *obj);
  52
  53 static gboolean      on_header_clicked      (GtkWidget *widget,
  54                                             GdkEventButton *event,
  55                                             gpointer user_data);
  56
  57 static gint          cmp_rows               (GtkTreeModel *tree_model,
  58                                              GtkTreeIter *iter1,
  59                                              GtkTreeIter *iter2,
  60                                              gpointer user_data);
  61
  62 static void          on_selection_changed   (GtkTreeSelection *sel,
  63                                              gpointer user_data);
  64
  65 static void          setup_drag_and_drop    (GtkTreeView *self);
  66
  67 static GtkTreePath * get_selected_row       (GtkTreeView *self, GtkTreeModel **model);
  68
  69 static gboolean      on_focus_in            (GtkWidget     *sef,
  70                                              GdkEventFocus *event,
  71                                              gpointer       user_data);
  72
  73 static void          folder_monitor_update  (TnyFolderObserver *self,
  74                                              TnyFolderChange *change);
  75
  76 static void          tny_folder_observer_init (TnyFolderObserverIface *klass);
  77
  78 typedef struct _ModestHeaderViewPrivate ModestHeaderViewPrivate;
  79 struct _ModestHeaderViewPrivate {
  80         TnyFolder            *folder;
  81         ModestHeaderViewStyle style;
  82
  83         TnyFolderMonitor     *monitor;
  84         GMutex               *observers_lock;
  85
  86         gint                  sort_colid[2][TNY_FOLDER_TYPE_NUM];
  87         gint                  sort_type[2][TNY_FOLDER_TYPE_NUM];
  88
  89
  90 };
  91
  92 #define MODEST_HEADER_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  93                                                 MODEST_TYPE_HEADER_VIEW, \
  94                                                 ModestHeaderViewPrivate))
  95
  96
  97
  98 #define MODEST_HEADER_VIEW_PTR "modest-header-view"
  99
 100 enum {
 101         HEADER_SELECTED_SIGNAL,
 102         HEADER_ACTIVATED_SIGNAL,
 103         ITEM_NOT_FOUND_SIGNAL,
 104         STATUS_UPDATE_SIGNAL,
 105         LAST_SIGNAL
 106 };
 107
 108 /* globals */
 109 static GObjectClass *parent_class = NULL;
 110
 111 /* uncomment the following if you have defined any signals */
 112 static guint signals[LAST_SIGNAL] = {0};
 113
 114 GType
 115 modest_header_view_get_type (void)
 116 {
 117         static GType my_type = 0;
 118         if (!my_type) {
 119                 static const GTypeInfo my_info = {
 120                         sizeof(ModestHeaderViewClass),
 121                         NULL,           /* base init */
 122                         NULL,           /* base finalize */
 123                         (GClassInitFunc) modest_header_view_class_init,
 124                         NULL,           /* class finalize */
 125                         NULL,           /* class data */
 126                         sizeof(ModestHeaderView),
 127                         1,              /* n_preallocs */
 128                         (GInstanceInitFunc) modest_header_view_init,
 129                         NULL
 130                 };
 131
 132                 static const GInterfaceInfo tny_folder_observer_info =
 133                 {
 134                         (GInterfaceInitFunc) tny_folder_observer_init, /* interface_init */
 135                         NULL,         /* interface_finalize */
 136                         NULL          /* interface_data */
 137                 };
 138                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
 139                                                   "ModestHeaderView",
 140                                                   &my_info, 0);
 141
 142                 g_type_add_interface_static (my_type, TNY_TYPE_FOLDER_OBSERVER,
 143                                              &tny_folder_observer_info);
 144
 145
 146         }
 147         return my_type;
 148 }
 149
 150 static void
 151 modest_header_view_class_init (ModestHeaderViewClass *klass)
 152 {
 153         GObjectClass *gobject_class;
 154         gobject_class = (GObjectClass*) klass;
 155
 156         parent_class            = g_type_class_peek_parent (klass);
 157         gobject_class->finalize = modest_header_view_finalize;
 158
 159         g_type_class_add_private (gobject_class, sizeof(ModestHeaderViewPrivate));
 160
 161         signals[HEADER_SELECTED_SIGNAL] =
 162                 g_signal_new ("header_selected",
 163                               G_TYPE_FROM_CLASS (gobject_class),
 164                               G_SIGNAL_RUN_FIRST,
 165                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_selected),
 166                               NULL, NULL,
 167                               g_cclosure_marshal_VOID__POINTER,
 168                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 169
 170         signals[HEADER_ACTIVATED_SIGNAL] =
 171                 g_signal_new ("header_activated",
 172                               G_TYPE_FROM_CLASS (gobject_class),
 173                               G_SIGNAL_RUN_FIRST,
 174                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_activated),
 175                               NULL, NULL,
 176                               g_cclosure_marshal_VOID__POINTER,
 177                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 178
 179
 180         signals[ITEM_NOT_FOUND_SIGNAL] =
 181                 g_signal_new ("item_not_found",
 182                               G_TYPE_FROM_CLASS (gobject_class),
 183                               G_SIGNAL_RUN_FIRST,
 184                               G_STRUCT_OFFSET (ModestHeaderViewClass,item_not_found),
 185                               NULL, NULL,
 186                               g_cclosure_marshal_VOID__INT,
 187                               G_TYPE_NONE, 1, G_TYPE_INT);
 188
 189         signals[STATUS_UPDATE_SIGNAL] =
 190                 g_signal_new ("status_update",
 191                               G_TYPE_FROM_CLASS (gobject_class),
 192                               G_SIGNAL_RUN_FIRST,
 193                               G_STRUCT_OFFSET (ModestHeaderViewClass,status_update),
 194                               NULL, NULL,
 195                               modest_marshal_VOID__STRING_INT_INT,
 196                               G_TYPE_NONE, 3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
 197 }
 198
 199 static void
 200 tny_folder_observer_init (TnyFolderObserverIface *klass)
 201 {
 202         klass->update_func = folder_monitor_update;
 203 }
 204
 205 static GtkTreeViewColumn*
 206 get_new_column (const gchar *name, GtkCellRenderer *renderer,
 207                 gboolean resizable, gint sort_col_id, gboolean show_as_text,
 208                 GtkTreeCellDataFunc cell_data_func, gpointer user_data)
 209 {
 210         GtkTreeViewColumn *column;
 211
 212         column =  gtk_tree_view_column_new_with_attributes(name, renderer, NULL);
 213         gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
 214
 215         gtk_tree_view_column_set_resizable (column, resizable);
 216         if (resizable)
 217                 gtk_tree_view_column_set_expand (column, TRUE);
 218
 219         if (show_as_text)
 220                 gtk_tree_view_column_add_attribute (column, renderer, "text",
 221                                                     sort_col_id);
 222         if (sort_col_id >= 0)
 223                 gtk_tree_view_column_set_sort_column_id (column, sort_col_id);
 224
 225         gtk_tree_view_column_set_sort_indicator (column, FALSE);
 226         gtk_tree_view_column_set_reorderable (column, TRUE);
 227
 228         if (cell_data_func)
 229                 gtk_tree_view_column_set_cell_data_func(column, renderer, cell_data_func,
 230                                                         user_data, NULL);
 231         return column;
 232 }
 233
 234
 235 static void
 236 remove_all_columns (ModestHeaderView *obj)
 237 {
 238         GList *columns, *cursor;
 239
 240         columns = gtk_tree_view_get_columns (GTK_TREE_VIEW(obj));
 241
 242         for (cursor = columns; cursor; cursor = cursor->next)
 243                 gtk_tree_view_remove_column (GTK_TREE_VIEW(obj),
 244                                              GTK_TREE_VIEW_COLUMN(cursor->data));
 245         g_list_free (columns);
 246 }
 247
 248 gboolean
 249 modest_header_view_set_columns (ModestHeaderView *self, const GList *columns, TnyFolderType type)
 250 {
 251         GtkTreeModel *sortable;
 252         GtkTreeViewColumn *column=NULL;
 253         GtkTreeSelection *selection = NULL;
 254         GtkCellRenderer *renderer_msgtype,*renderer_header,
 255                 *renderer_attach, *renderer_compact_date;
 256         GtkCellRenderer *renderer_compact_header, *renderer_recpt_box,
 257                 *renderer_subject, *renderer_subject_box, *renderer_recpt,
 258                 *renderer_priority;
 259         ModestHeaderViewPrivate *priv;
 260         GtkTreeViewColumn *compact_column = NULL;
 261         const GList *cursor;
 262
 263         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 264
 265         /* FIXME: check whether these renderers need to be freed */
 266         renderer_msgtype = gtk_cell_renderer_pixbuf_new ();
 267         renderer_attach  = gtk_cell_renderer_pixbuf_new ();
 268         renderer_priority  = gtk_cell_renderer_pixbuf_new ();
 269         renderer_header  = gtk_cell_renderer_text_new ();
 270
 271         renderer_compact_header = modest_vbox_cell_renderer_new ();
 272         renderer_recpt_box = modest_hbox_cell_renderer_new ();
 273         renderer_subject_box = modest_hbox_cell_renderer_new ();
 274         renderer_recpt = gtk_cell_renderer_text_new ();
 275         renderer_subject = gtk_cell_renderer_text_new ();
 276         renderer_compact_date  = gtk_cell_renderer_text_new ();
 277
 278         modest_vbox_cell_renderer_append (MODEST_VBOX_CELL_RENDERER (renderer_compact_header), renderer_subject_box, FALSE);
 279         g_object_set_data (G_OBJECT (renderer_compact_header), "subject-box-renderer", renderer_subject_box);
 280         modest_vbox_cell_renderer_append (MODEST_VBOX_CELL_RENDERER (renderer_compact_header), renderer_recpt_box, FALSE);
 281         g_object_set_data (G_OBJECT (renderer_compact_header), "recpt-box-renderer", renderer_recpt_box);
 282         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_subject_box), renderer_priority, FALSE);
 283         g_object_set_data (G_OBJECT (renderer_subject_box), "priority-renderer", renderer_priority);
 284         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_subject_box), renderer_subject, TRUE);
 285         g_object_set_data (G_OBJECT (renderer_subject_box), "subject-renderer", renderer_subject);
 286         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_recpt_box), renderer_attach, FALSE);
 287         g_object_set_data (G_OBJECT (renderer_recpt_box), "attach-renderer", renderer_attach);
 288         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_recpt_box), renderer_recpt, TRUE);
 289         g_object_set_data (G_OBJECT (renderer_recpt_box), "recipient-renderer", renderer_recpt);
 290         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_recpt_box), renderer_compact_date, FALSE);
 291         g_object_set_data (G_OBJECT (renderer_recpt_box), "date-renderer", renderer_compact_date);
 292
 293         g_object_set(G_OBJECT(renderer_header),
 294                      "ellipsize", PANGO_ELLIPSIZE_END,
 295                      NULL);
 296         g_object_set (G_OBJECT (renderer_subject),
 297                       "ellipsize", PANGO_ELLIPSIZE_END,
 298                       NULL);
 299         g_object_set (G_OBJECT (renderer_recpt),
 300                       "ellipsize", PANGO_ELLIPSIZE_END,
 301                       NULL);
 302         g_object_set(G_OBJECT(renderer_compact_date),
 303                      "xalign", 1.0,
 304                      NULL);
 305
 306         gtk_cell_renderer_set_fixed_size (renderer_attach, 32, 32);
 307         gtk_cell_renderer_set_fixed_size (renderer_priority, 32, 32);
 308
 309         remove_all_columns (self);
 310
 311         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 312         gtk_tree_selection_set_mode(selection, GTK_SELECTION_MULTIPLE);
 313         sortable = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 314
 315         /* Add new columns */
 316         for (cursor = columns; cursor; cursor = g_list_next(cursor)) {
 317                 ModestHeaderViewColumn col =
 318                         (ModestHeaderViewColumn) GPOINTER_TO_INT(cursor->data);
 319
 320                 if (0> col || col >= MODEST_HEADER_VIEW_COLUMN_NUM) {
 321                         g_printerr ("modest: invalid column %d in column list\n", col);
 322                         continue;
 323                 }
 324
 325                 switch (col) {
 326
 327                 case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
 328                         column = get_new_column (_("M"), renderer_msgtype, FALSE,
 329                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 330                                                  FALSE,
 331                                                  (GtkTreeCellDataFunc)_modest_header_view_msgtype_cell_data,
 332                                                  NULL);
 333                         gtk_tree_view_column_set_fixed_width (column, 45);
 334                         break;
 335
 336                 case MODEST_HEADER_VIEW_COLUMN_ATTACH:
 337                         column = get_new_column (_("A"), renderer_attach, FALSE,
 338                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 339                                                  FALSE,
 340                                                  (GtkTreeCellDataFunc)_modest_header_view_attach_cell_data,
 341                                                  NULL);
 342                         gtk_tree_view_column_set_fixed_width (column, 45);
 343                         break;
 344
 345
 346                 case MODEST_HEADER_VIEW_COLUMN_FROM:
 347                         column = get_new_column (_("From"), renderer_header, TRUE,
 348                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 349                                                  TRUE,
 350                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 351                                                  GINT_TO_POINTER(TRUE));
 352                         break;
 353
 354                 case MODEST_HEADER_VIEW_COLUMN_TO:
 355                         column = get_new_column (_("To"), renderer_header, TRUE,
 356                                                  TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN,
 357                                                  TRUE,
 358                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 359                                                  GINT_TO_POINTER(FALSE));
 360                         break;
 361
 362                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 363                         column = get_new_column (_("Header"), renderer_compact_header, TRUE,
 364                                                      TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 365                                                      FALSE,
 366                                                      (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 367                                                      GINT_TO_POINTER(TRUE));
 368                         compact_column = column;
 369                         break;
 370
 371                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
 372                         column = get_new_column (_("Header"), renderer_compact_header, TRUE,
 373                                                      TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 374                                                      FALSE,
 375                                                      (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 376                                                      GINT_TO_POINTER(FALSE));
 377                         compact_column = column;
 378                         break;
 379
 380
 381                 case MODEST_HEADER_VIEW_COLUMN_SUBJECT:
 382                         column = get_new_column (_("Subject"), renderer_header, TRUE,
 383                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 384                                                  TRUE,
 385                                                  (GtkTreeCellDataFunc)_modest_header_view_header_cell_data,
 386                                                  NULL);
 387                         break;
 388
 389                 case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
 390                         column = get_new_column (_("Received"), renderer_header, TRUE,
 391                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 392                                                  TRUE,
 393                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 394                                                  GINT_TO_POINTER(TRUE));
 395                         break;
 396
 397                 case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
 398                         column = get_new_column (_("Sent"), renderer_header, TRUE,
 399                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 400                                                  TRUE,
 401                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 402                                                  GINT_TO_POINTER(FALSE));
 403                         break;
 404
 405                 case MODEST_HEADER_VIEW_COLUMN_SIZE:
 406                         column = get_new_column (_("Size"), renderer_header, TRUE,
 407                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 408                                                  FALSE,
 409                                                  (GtkTreeCellDataFunc)_modest_header_view_size_cell_data,
 410                                                  NULL);
 411                         break;
 412                 case MODEST_HEADER_VIEW_COLUMN_STATUS:
 413                         column = get_new_column (_("Status"), renderer_compact_date, TRUE,
 414                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 415                                                  FALSE,
 416                                                  (GtkTreeCellDataFunc)_modest_header_view_status_cell_data,
 417                                                  NULL);
 418                         break;
 419
 420                 default:
 421                         g_return_val_if_reached(FALSE);
 422                 }
 423
 424                 /* we keep the column id around */
 425                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_COLUMN,
 426                                    GINT_TO_POINTER(col));
 427
 428                 /* we need this ptr when sorting the rows */
 429                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_PTR,
 430                                    self);
 431                 gtk_tree_view_append_column (GTK_TREE_VIEW(self), column);
 432         }
 433
 434         if (sortable) {
 435                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 436                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 437                                                  (GtkTreeIterCompareFunc) cmp_rows,
 438                                                  compact_column, NULL);
 439         }
 440
 441
 442         return TRUE;
 443 }
 444
 445 static void
 446 modest_header_view_init (ModestHeaderView *obj)
 447 {
 448         ModestHeaderViewPrivate *priv;
 449         guint i, j;
 450
 451         priv = MODEST_HEADER_VIEW_GET_PRIVATE(obj);
 452
 453         priv->folder  = NULL;
 454
 455         priv->monitor        = NULL;
 456         priv->observers_lock = g_mutex_new ();
 457
 458         /* Sort parameters */
 459         for (j=0; j < 2; j++) {
 460                 for (i=0; i < TNY_FOLDER_TYPE_NUM; i++) {
 461                         priv->sort_colid[j][i] = -1;
 462                         priv->sort_type[j][i] = GTK_SORT_DESCENDING;
 463                 }
 464         }
 465
 466         setup_drag_and_drop (GTK_TREE_VIEW (obj));
 467 }
 468
 469 static void
 470 modest_header_view_finalize (GObject *obj)
 471 {
 472         ModestHeaderView        *self;
 473         ModestHeaderViewPrivate *priv;
 474
 475         self = MODEST_HEADER_VIEW(obj);
 476         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 477
 478         g_mutex_lock (priv->observers_lock);
 479         if (priv->monitor) {
 480                 tny_folder_monitor_stop (priv->monitor);
 481                 g_object_unref (G_OBJECT (priv->monitor));
 482         }
 483         g_mutex_unlock (priv->observers_lock);
 484         g_mutex_free (priv->observers_lock);
 485
 486         if (priv->folder) {
 487                 tny_folder_remove_observer (priv->folder, TNY_FOLDER_OBSERVER (obj));
 488                 g_object_unref (G_OBJECT (priv->folder));
 489                 priv->folder   = NULL;
 490         }
 491
 492         G_OBJECT_CLASS(parent_class)->finalize (obj);
 493 }
 494
 495
 496 GtkWidget*
 497 modest_header_view_new (TnyFolder *folder, ModestHeaderViewStyle style)
 498 {
 499         GObject *obj;
 500         GtkTreeSelection *sel;
 501         ModestHeaderView *self;
 502         ModestHeaderViewPrivate *priv;
 503
 504         g_return_val_if_fail (style >= 0 && style < MODEST_HEADER_VIEW_STYLE_NUM,
 505                               NULL);
 506
 507         obj  = G_OBJECT(g_object_new(MODEST_TYPE_HEADER_VIEW, NULL));
 508         self = MODEST_HEADER_VIEW(obj);
 509         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 510
 511         modest_header_view_set_style   (self, style);
 512         modest_header_view_set_folder (self, NULL);
 513
 514         gtk_tree_view_columns_autosize (GTK_TREE_VIEW(obj));
 515         gtk_tree_view_set_fixed_height_mode (GTK_TREE_VIEW(obj),TRUE);
 516         gtk_tree_view_set_enable_search (GTK_TREE_VIEW(obj), TRUE);
 517
 518         gtk_tree_view_set_rules_hint (GTK_TREE_VIEW(obj),
 519                                       TRUE); /* alternating row colors */
 520         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 521
 522         g_signal_connect (sel, "changed",
 523                           G_CALLBACK(on_selection_changed), self);
 524
 525         g_signal_connect (self, "button-press-event",
 526                           G_CALLBACK(on_header_clicked), NULL);
 527
 528         g_signal_connect (self, "focus-in-event",
 529                           G_CALLBACK(on_focus_in), NULL);
 530
 531         return GTK_WIDGET(self);
 532 }
 533
 534
 535 TnyList *
 536 modest_header_view_get_selected_headers (ModestHeaderView *self)
 537 {
 538         GtkTreeSelection *sel;
 539         ModestHeaderViewPrivate *priv;
 540         TnyList *header_list = NULL;
 541         TnyHeader *header;
 542         GList *list, *tmp = NULL;
 543         GtkTreeModel *tree_model = NULL;
 544         GtkTreeIter iter;
 545
 546         g_return_val_if_fail (self, NULL);
 547
 548         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 549
 550         /* Get selected rows */
 551         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 552         list = gtk_tree_selection_get_selected_rows (sel, &tree_model);
 553
 554         if (list) {
 555                 header_list = tny_simple_list_new();
 556
 557                 list = g_list_reverse (list);
 558                 tmp = list;
 559                 while (tmp) {
 560                         /* get header from selection */
 561                         gtk_tree_model_get_iter (tree_model, &iter, (GtkTreePath *) (tmp->data));
 562                         gtk_tree_model_get (tree_model, &iter,
 563                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 564                                             &header, -1);
 565                         /* Prepend to list */
 566                         tny_list_prepend (header_list, G_OBJECT (header));
 567                         g_object_unref (G_OBJECT (header));
 568
 569                         tmp = g_list_next (tmp);
 570                 }
 571                 /* Clean up*/
 572                 g_list_foreach (list, (GFunc) gtk_tree_path_free, NULL);
 573                 g_list_free (list);
 574         }
 575         return header_list;
 576 }
 577
 578
 579 /* scroll our list view so the selected item is visible */
 580 static void
 581 scroll_to_selected (ModestHeaderView *self, GtkTreeIter *iter, gboolean up)
 582 {
 583 #ifdef MODEST_PLATFORM_GNOME
 584
 585         GtkTreePath *selected_path;
 586         GtkTreePath *start, *end;
 587
 588         GtkTreeModel *model;
 589
 590         model         = gtk_tree_view_get_model (GTK_TREE_VIEW(self));
 591         selected_path = gtk_tree_model_get_path (model, iter);
 592
 593         start = gtk_tree_path_new ();
 594         end   = gtk_tree_path_new ();
 595
 596         gtk_tree_view_get_visible_range (GTK_TREE_VIEW(self), &start, &end);
 597
 598         if (gtk_tree_path_compare (selected_path, start) < 0 ||
 599             gtk_tree_path_compare (end, selected_path) < 0)
 600                 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW(self),
 601                                               selected_path, NULL, TRUE,
 602                                               up ? 0.0 : 1.0,
 603                                               up ? 0.0 : 1.0);
 604         gtk_tree_path_free (selected_path);
 605         gtk_tree_path_free (start);
 606         gtk_tree_path_free (end);
 607
 608 #endif /* MODEST_PLATFORM_GNOME */
 609 }
 610
 611
 612 void
 613 modest_header_view_select_next (ModestHeaderView *self)
 614 {
 615         GtkTreeSelection *sel;
 616         GtkTreeIter iter;
 617         GtkTreeModel *model;
 618         GtkTreePath *path;
 619
 620         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 621         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 622         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 623                 /* Unselect previous path */
 624                 gtk_tree_selection_unselect_path (sel, path);
 625
 626                 /* Move path down and selects new one  */
 627                 if (gtk_tree_model_iter_next (model, &iter)) {
 628                         gtk_tree_selection_select_iter (sel, &iter);
 629                         scroll_to_selected (self, &iter, FALSE);
 630                 }
 631                 gtk_tree_path_free(path);
 632         }
 633
 634 }
 635
 636 void
 637 modest_header_view_select_prev (ModestHeaderView *self)
 638 {
 639         GtkTreeSelection *sel;
 640         GtkTreeIter iter;
 641         GtkTreeModel *model;
 642         GtkTreePath *path;
 643
 644         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 645         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 646         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 647                 /* Unselect previous path */
 648                 gtk_tree_selection_unselect_path (sel, path);
 649
 650                 /* Move path up */
 651                 if (gtk_tree_path_prev (path)) {
 652                         gtk_tree_model_get_iter (model, &iter, path);
 653
 654                         /* Select the new one */
 655                         gtk_tree_selection_select_iter (sel, &iter);
 656                         scroll_to_selected (self, &iter, TRUE);
 657
 658                 }
 659                 gtk_tree_path_free (path);
 660         }
 661 }
 662
 663 GList*
 664 modest_header_view_get_columns (ModestHeaderView *self)
 665 {
 666         g_return_val_if_fail (self, FALSE);
 667         return gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 668 }
 669
 670
 671 gboolean
 672 modest_header_view_is_empty (ModestHeaderView *self)
 673 {
 674         g_return_val_if_fail (self, FALSE);
 675         return FALSE; /* FIXME */
 676 }
 677
 678
 679 gboolean
 680 modest_header_view_set_style (ModestHeaderView *self,
 681                               ModestHeaderViewStyle style)
 682 {
 683         ModestHeaderViewPrivate *priv;
 684         gboolean show_col_headers = FALSE;
 685         ModestHeaderViewStyle old_style;
 686
 687         g_return_val_if_fail (self, FALSE);
 688         g_return_val_if_fail (style >= 0 && MODEST_HEADER_VIEW_STYLE_NUM,
 689                               FALSE);
 690
 691         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 692         if (priv->style == style)
 693                 return TRUE; /* nothing to do */
 694
 695         switch (style) {
 696         case MODEST_HEADER_VIEW_STYLE_DETAILS:
 697                 show_col_headers = TRUE;
 698                 break;
 699         case MODEST_HEADER_VIEW_STYLE_TWOLINES:
 700                 break;
 701         default:
 702                 g_return_val_if_reached (FALSE);
 703         }
 704         gtk_tree_view_set_headers_visible   (GTK_TREE_VIEW(self), show_col_headers);
 705         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(self), show_col_headers);
 706
 707         old_style   = priv->style;
 708         priv->style = style;
 709
 710         return TRUE;
 711 }
 712
 713
 714 ModestHeaderViewStyle
 715 modest_header_view_get_style (ModestHeaderView *self)
 716 {
 717         g_return_val_if_fail (self, FALSE);
 718         return MODEST_HEADER_VIEW_GET_PRIVATE(self)->style;
 719 }
 720
 721 /*
 722  * This function sets a sortable model in the header view. It's just
 723  * used for developing purposes, because it only does a
 724  * gtk_tree_view_set_model
 725  */
 726 static void
 727 modest_header_view_set_model (GtkTreeView *header_view, GtkTreeModel *model)
 728 {
 729         GtkTreeModel *old_model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
 730
 731         if (old_model_sort && GTK_IS_TREE_MODEL_SORT (old_model_sort)) {
 732                 GtkTreeModel *old_model;
 733                 ModestHeaderViewPrivate *priv;
 734
 735                 priv = MODEST_HEADER_VIEW_GET_PRIVATE (header_view);
 736                 old_model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (old_model_sort));
 737
 738                 /* Set new model */
 739                 gtk_tree_view_set_model (header_view, model);
 740         } else
 741                 gtk_tree_view_set_model (header_view, model);
 742
 743         return;
 744 }
 745
 746 TnyFolder*
 747 modest_header_view_get_folder (ModestHeaderView *self)
 748 {
 749         ModestHeaderViewPrivate *priv;
 750         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 751
 752         if (priv->folder)
 753                 g_object_ref (priv->folder);
 754
 755         return priv->folder;
 756 }
 757
 758 static void
 759 modest_header_view_set_folder_intern (ModestHeaderView *self, TnyFolder *folder)
 760 {
 761         TnyFolderType type;
 762         TnyList *headers;
 763         ModestHeaderViewPrivate *priv;
 764         GList *cols, *cursor;
 765         GtkTreeModel *sortable;
 766         guint sort_colid;
 767         GtkSortType sort_type;
 768
 769         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 770
 771         headers = TNY_LIST (tny_gtk_header_list_model_new ());
 772
 773         tny_gtk_header_list_model_set_folder (TNY_GTK_HEADER_LIST_MODEL(headers),
 774                                               folder, FALSE);
 775
 776         /* Add IDLE observer (monitor) and another folder observer for
 777            new messages (self) */
 778         g_mutex_lock (priv->observers_lock);
 779         if (priv->monitor) {
 780                 tny_folder_monitor_stop (priv->monitor);
 781                 g_object_unref (G_OBJECT (priv->monitor));
 782         }
 783         priv->monitor = TNY_FOLDER_MONITOR (tny_folder_monitor_new (folder));
 784         tny_folder_monitor_add_list (priv->monitor, TNY_LIST (headers));
 785         tny_folder_monitor_start (priv->monitor);
 786         tny_folder_add_observer (folder, TNY_FOLDER_OBSERVER (self));
 787         g_mutex_unlock (priv->observers_lock);
 788
 789         sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(headers));
 790         g_object_unref (G_OBJECT (headers));
 791
 792         /* install our special sorting functions */
 793         cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 794
 795         /* Restore sort column id */
 796         if (cols) {
 797                 type  = modest_tny_folder_guess_folder_type (folder);
 798                 sort_colid = modest_header_view_get_sort_column_id (self, type);
 799                 sort_type = modest_header_view_get_sort_type (self, type);
 800                 gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 801                                                       sort_colid,
 802                                                       sort_type);
 803                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 804                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 805                                                  (GtkTreeIterCompareFunc) cmp_rows,
 806                                                  cols->data, NULL);
 807         }
 808
 809         /* Set new model */
 810         modest_header_view_set_model (GTK_TREE_VIEW (self), sortable);
 811         g_object_unref (G_OBJECT (sortable));
 812
 813         /* Free */
 814         g_list_free (cols);
 815 }
 816
 817 void
 818 modest_header_view_sort_by_column_id (ModestHeaderView *self,
 819                                       guint sort_colid,
 820                                       GtkSortType sort_type)
 821 {
 822         ModestHeaderViewPrivate *priv = NULL;
 823         GtkTreeModel *sortable = NULL;
 824         TnyFolderType type;
 825
 826         /* Get model and private data */
 827         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 828         sortable = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 829
 830         /* Sort tree model */
 831         type  = modest_tny_folder_guess_folder_type (priv->folder);
 832         gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 833                                               sort_colid,
 834                                               sort_type);
 835         /* Store new sort parameters */
 836         modest_header_view_set_sort_params (self, sort_colid, sort_type, type);
 837
 838         /* Save GConf parameters */
 839 /*      modest_widget_memory_save (modest_runtime_get_conf(), */
 840 /*                                 G_OBJECT(self), "header-view"); */
 841
 842 }
 843
 844 void
 845 modest_header_view_set_sort_params (ModestHeaderView *self,
 846                                     guint sort_colid,
 847                                     GtkSortType sort_type,
 848                                     TnyFolderType type)
 849 {
 850         ModestHeaderViewPrivate *priv;
 851         ModestHeaderViewStyle style;
 852
 853         style = modest_header_view_get_style   (self);
 854         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 855
 856         priv->sort_colid[style][type] = sort_colid;
 857         priv->sort_type[style][type] = sort_type;
 858 }
 859
 860 gint
 861 modest_header_view_get_sort_column_id (ModestHeaderView *self,
 862                                        TnyFolderType type)
 863 {
 864         ModestHeaderViewPrivate *priv;
 865         ModestHeaderViewStyle style;
 866
 867         style = modest_header_view_get_style   (self);
 868         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 869
 870         return priv->sort_colid[style][type];
 871 }
 872
 873 GtkSortType
 874 modest_header_view_get_sort_type (ModestHeaderView *self,
 875                                   TnyFolderType type)
 876 {
 877         ModestHeaderViewPrivate *priv;
 878         ModestHeaderViewStyle style;
 879
 880         style = modest_header_view_get_style   (self);
 881         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 882
 883         return priv->sort_type[style][type];
 884 }
 885
 886 void
 887 modest_header_view_set_folder (ModestHeaderView *self, TnyFolder *folder)
 888 {
 889         ModestHeaderViewPrivate *priv;
 890
 891         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 892
 893         if (priv->folder) {
 894                 g_mutex_lock (priv->observers_lock);
 895                 tny_folder_remove_observer (priv->folder, TNY_FOLDER_OBSERVER (self));
 896                 g_object_unref (priv->folder);
 897                 priv->folder = NULL;
 898                 g_mutex_unlock (priv->observers_lock);
 899         }
 900
 901         if (folder) {
 902                 ModestMailOperation *mail_op;
 903
 904                 /* Set folder in the model */
 905                 modest_header_view_set_folder_intern (self, folder);
 906
 907                 /* Pick my reference. Nothing to do with the mail operation */
 908                 priv->folder = g_object_ref (folder);
 909
 910                 /* no message selected */
 911                 g_signal_emit (G_OBJECT(self), signals[HEADER_SELECTED_SIGNAL], 0, NULL);
 912
 913                 /* Create the mail operation */
 914                 mail_op = modest_mail_operation_new (MODEST_MAIL_OPERATION_TYPE_RECEIVE, NULL);
 915                 modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
 916                                                  mail_op);
 917
 918                 /* Refresh the folder asynchronously */
 919                 modest_mail_operation_refresh_folder (mail_op, folder);
 920
 921                 /* Free */
 922                 g_object_unref (mail_op);
 923
 924         } else {
 925                 g_mutex_lock (priv->observers_lock);
 926
 927                 if (priv->monitor) {
 928                         tny_folder_monitor_stop (priv->monitor);
 929                         g_object_unref (G_OBJECT (priv->monitor));
 930                         priv->monitor = NULL;
 931                 }
 932                 modest_header_view_set_model (GTK_TREE_VIEW (self), NULL);
 933
 934                 g_mutex_unlock (priv->observers_lock);
 935         }
 936 }
 937
 938 static gboolean
 939 on_header_clicked (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
 940 {
 941         ModestHeaderView *self = NULL;
 942         ModestHeaderViewPrivate *priv = NULL;
 943         GtkTreePath *path = NULL;
 944         GtkTreeIter iter;
 945         GtkTreeModel *model = NULL;
 946         TnyHeader *header;
 947         /* ignore everything but doubleclick */
 948         if (event->type != GDK_2BUTTON_PRESS)
 949                 return FALSE;
 950
 951         self = MODEST_HEADER_VIEW (widget);
 952         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 953
 954         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 955         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
 956                 return FALSE;
 957
 958         /* get the first selected item */
 959         gtk_tree_model_get (model, &iter,
 960                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 961                             &header, -1);
 962         /* Emit signal */
 963         g_signal_emit (G_OBJECT(self),
 964                        signals[HEADER_ACTIVATED_SIGNAL],
 965                        0, header);
 966
 967         /* Free */
 968         g_object_unref (G_OBJECT (header));
 969         gtk_tree_path_free(path);
 970
 971         return TRUE;
 972 }
 973
 974
 975 static void
 976 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
 977 {
 978         GtkTreeModel *model;
 979         TnyHeader *header;
 980         GtkTreePath *path = NULL;
 981         GtkTreeIter iter;
 982         ModestHeaderView *self;
 983         ModestHeaderViewPrivate *priv;
 984
 985         g_return_if_fail (sel);
 986         g_return_if_fail (user_data);
 987
 988         self = MODEST_HEADER_VIEW (user_data);
 989         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 990
 991         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 992         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
 993                 return; /* msg was _un_selected */
 994
 995         gtk_tree_model_get (model, &iter,
 996                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 997                             &header, -1);
 998
 999         /* Emit signal */
1000         g_signal_emit (G_OBJECT(self),
1001                        signals[HEADER_SELECTED_SIGNAL],
1002                        0, header);
1003
1004         g_object_unref (G_OBJECT (header));
1005         gtk_tree_path_free(path);
1006 }
1007
1008
1009 /* PROTECTED method. It's useful when we want to force a given
1010    selection to reload a msg. For example if we have selected a header
1011    in offline mode, when Modest become online, we want to reload the
1012    message automatically without an user click over the header */
1013 void
1014 _modest_header_view_change_selection (GtkTreeSelection *selection,
1015                                       gpointer user_data)
1016 {
1017         g_return_if_fail (GTK_IS_TREE_SELECTION (selection));
1018         g_return_if_fail (MODEST_IS_HEADER_VIEW (user_data));
1019
1020         on_selection_changed (selection, user_data);
1021 }
1022
1023
1024 static gint
1025 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
1026           gpointer user_data)
1027 {
1028         gint col_id;
1029         gint t1, t2;
1030         gint val1, val2;
1031         gint cmp;
1032         static int counter = 0;
1033
1034         g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN(user_data), 0);
1035 /*      col_id = gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (tree_model)); */
1036         col_id = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(user_data), MODEST_HEADER_VIEW_FLAG_SORT));
1037
1038         if (!(++counter % 100)) {
1039                 GObject *header_view = g_object_get_data(G_OBJECT(user_data),
1040                                                          MODEST_HEADER_VIEW_PTR);
1041                 g_signal_emit (header_view,
1042                                signals[STATUS_UPDATE_SIGNAL],
1043                                0, _("Sorting..."), 0, 0);
1044         }
1045         switch (col_id) {
1046         case TNY_HEADER_FLAG_ATTACHMENTS:
1047
1048                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1049                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1, -1);
1050                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1051                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2, -1);
1052
1053                 cmp = (val1 & TNY_HEADER_FLAG_ATTACHMENTS) -
1054                         (val2 & TNY_HEADER_FLAG_ATTACHMENTS);
1055
1056                 return cmp ? cmp : t1 - t2;
1057
1058         case TNY_HEADER_FLAG_PRIORITY:
1059                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1060                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,-1);
1061                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1062                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,-1);
1063
1064                 /* This is for making priority values respect the intuitive sort relationship
1065                  * as HIGH is 11, LOW is 01, and we put NORMAL AS 10 (2) */
1066                 if (val1 == 0) val1 = 2;
1067                 if (val2 == 0) val2 = 2;
1068
1069                 cmp =  (val1 & TNY_HEADER_FLAG_PRIORITY) - (val2 & TNY_HEADER_FLAG_PRIORITY);
1070
1071                 return cmp ? cmp : t1 - t2;
1072
1073         default:
1074                 return &iter1 - &iter2; /* oughhhh  */
1075         }
1076 }
1077
1078 /* Drag and drop stuff */
1079 static void
1080 drag_data_get_cb (GtkWidget *widget, GdkDragContext *context,
1081                   GtkSelectionData *selection_data,
1082                   guint info,  guint time, gpointer data)
1083 {
1084         GtkTreeModel *model = NULL;
1085         GtkTreeIter iter;
1086         GtkTreePath *source_row = NULL;
1087
1088         source_row = get_selected_row (GTK_TREE_VIEW (widget), &model);
1089         if ((source_row == NULL) || (!gtk_tree_model_get_iter(model, &iter, source_row))) return;
1090
1091         switch (info) {
1092         case MODEST_HEADER_ROW:
1093                 gtk_tree_set_row_drag_data (selection_data, model, source_row);
1094                 break;
1095         case MODEST_MSG: {
1096                 TnyHeader *hdr;
1097                 gtk_tree_model_get (model, &iter,
1098                                     TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN, &hdr,
1099                                     -1);
1100                 if (hdr) {
1101                         g_object_unref (G_OBJECT(hdr));
1102                 }
1103                 break;
1104         }
1105         default:
1106                 g_message ("%s: default switch case.", __FUNCTION__);
1107         }
1108
1109         gtk_tree_path_free (source_row);
1110 }
1111
1112 /* Header view drag types */
1113 const GtkTargetEntry header_view_drag_types[] = {
1114         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP, MODEST_HEADER_ROW },
1115         { "text/uri-list",      0,                   MODEST_MSG },
1116 };
1117
1118 static void
1119 setup_drag_and_drop (GtkTreeView *self)
1120 {
1121         gtk_drag_source_set (GTK_WIDGET (self),
1122                              GDK_BUTTON1_MASK,
1123                              header_view_drag_types,
1124                              G_N_ELEMENTS (header_view_drag_types),
1125                              GDK_ACTION_MOVE | GDK_ACTION_COPY);
1126
1127         g_signal_connect(G_OBJECT (self), "drag_data_get",
1128                          G_CALLBACK(drag_data_get_cb), NULL);
1129 }
1130
1131 static GtkTreePath *
1132 get_selected_row (GtkTreeView *self, GtkTreeModel **model)
1133 {
1134         GtkTreePath *path = NULL;
1135         GtkTreeSelection *sel = NULL;
1136         GList *rows = NULL;
1137
1138         sel   = gtk_tree_view_get_selection(self);
1139         rows = gtk_tree_selection_get_selected_rows (sel, model);
1140
1141         if ((rows == NULL) || (g_list_length(rows) != 1))
1142                 goto frees;
1143
1144         path = gtk_tree_path_copy(g_list_nth_data (rows, 0));
1145
1146
1147         /* Free */
1148  frees:
1149         g_list_foreach(rows,(GFunc) gtk_tree_path_free, NULL);
1150         g_list_free(rows);
1151
1152         return path;
1153 }
1154
1155 /*
1156  * This function moves the tree view scroll to the current selected
1157  * row when the widget grabs the focus
1158  */
1159 static gboolean
1160 on_focus_in (GtkWidget     *self,
1161              GdkEventFocus *event,
1162              gpointer       user_data)
1163 {
1164         GtkTreeSelection *selection;
1165         GtkTreeModel *model;
1166         GList *selected = NULL;
1167         GtkTreePath *selected_path = NULL;
1168
1169         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
1170         if (!model)
1171                 return FALSE;
1172
1173         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
1174         /* If none selected yet, pick the first one */
1175         if (gtk_tree_selection_count_selected_rows (selection) == 0) {
1176                 GtkTreeIter iter;
1177                 GtkTreePath *path;
1178
1179                 /* Return if the model is empty */
1180                 if (!gtk_tree_model_get_iter_first (model, &iter))
1181                         return FALSE;
1182
1183                 path = gtk_tree_model_get_path (model, &iter);
1184                 gtk_tree_selection_select_path (selection, path);
1185                 gtk_tree_path_free (path);
1186         }
1187
1188         /* Need to get the all the rows because is selection multiple */
1189         selected = gtk_tree_selection_get_selected_rows (selection, &model);
1190         selected_path = (GtkTreePath *) selected->data;
1191
1192         /* Check if we need to scroll */
1193         #if GTK_CHECK_VERSION(2, 8, 0) /* TODO: gtk_tree_view_get_visible_range() is only available in GTK+ 2.8 */
1194         GtkTreePath *start_path = NULL;
1195         GtkTreePath *end_path = NULL;
1196         if (gtk_tree_view_get_visible_range (GTK_TREE_VIEW (self),
1197                                              &start_path,
1198                                              &end_path)) {
1199
1200                 if ((gtk_tree_path_compare (start_path, selected_path) != -1) ||
1201                     (gtk_tree_path_compare (end_path, selected_path) != 1)) {
1202
1203                         /* Scroll to first path */
1204                         gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (self),
1205                                                       selected_path,
1206                                                       NULL,
1207                                                       TRUE,
1208                                                       0.5,
1209                                                       0.0);
1210                 }
1211         }
1212         #endif /* GTK_CHECK_VERSION */
1213
1214         /* Frees */
1215         g_list_foreach (selected, (GFunc) gtk_tree_path_free, NULL);
1216         g_list_free (selected);
1217
1218         return FALSE;
1219 }
1220
1221 static void
1222 folder_monitor_update (TnyFolderObserver *self,
1223                        TnyFolderChange *change)
1224 {
1225         ModestHeaderViewPrivate *priv = MODEST_HEADER_VIEW_GET_PRIVATE (self);
1226         TnyFolderChangeChanged changed;
1227
1228         g_mutex_lock (priv->observers_lock);
1229
1230         changed = tny_folder_change_get_changed (change);
1231
1232         if (changed & TNY_FOLDER_CHANGE_CHANGED_ADDED_HEADERS) {
1233 /*      TnyIterator *iter; */
1234 /*      TnyList *list; */
1235 /*              /\* The added headers *\/ */
1236 /*              list = tny_simple_list_new (); */
1237 /*              tny_folder_change_get_added_headers (change, list); */
1238 /*              iter = tny_list_create_iterator (list); */
1239 /*              while (!tny_iterator_is_done (iter)) */
1240 /*              { */
1241 /*                      TnyHeader *header = TNY_HEADER (tny_iterator_get_current (iter)); */
1242 /*                      g_object_unref (G_OBJECT (header)); */
1243 /*                      tny_iterator_next (iter); */
1244 /*              } */
1245 /*              g_object_unref (G_OBJECT (iter)); */
1246 /*              g_object_unref (G_OBJECT (list)); */
1247                 modest_platform_on_new_msg ();
1248         }
1249
1250         g_mutex_unlock (priv->observers_lock);
1251 }