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