git.maemo.org Git - modest/blob - src/widgets/modest-header-view.c

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <glib/gi18n.h>
  31 #include <tny-list.h>
  32 #include <tny-simple-list.h>
  33 #include <tny-folder-monitor.h>
  34 #include <string.h>
  35
  36 #include <modest-header-view.h>
  37 #include <modest-header-view-priv.h>
  38 #include <modest-dnd.h>
  39
  40 #include <modest-marshal.h>
  41 #include <modest-text-utils.h>
  42 #include <modest-icon-names.h>
  43 #include <modest-runtime.h>
  44
  45 static void modest_header_view_class_init  (ModestHeaderViewClass *klass);
  46 static void modest_header_view_init        (ModestHeaderView *obj);
  47 static void modest_header_view_finalize    (GObject *obj);
  48
  49 static gboolean      on_header_clicked      (GtkWidget *widget,
  50                                             GdkEventButton *event,
  51                                             gpointer user_data);
  52
  53 static gint          cmp_rows               (GtkTreeModel *tree_model,
  54                                              GtkTreeIter *iter1,
  55                                              GtkTreeIter *iter2,
  56                                              gpointer user_data);
  57
  58 static void          on_selection_changed   (GtkTreeSelection *sel,
  59                                              gpointer user_data);
  60
  61 static void          setup_drag_and_drop    (GtkTreeView *self);
  62
  63 static GtkTreePath * get_selected_row       (GtkTreeView *self, GtkTreeModel **model);
  64
  65 static gboolean      on_focus_in            (GtkWidget     *sef,
  66                                              GdkEventFocus *event,
  67                                              gpointer       user_data);
  68
  69 typedef struct _ModestHeaderViewPrivate ModestHeaderViewPrivate;
  70 struct _ModestHeaderViewPrivate {
  71         TnyFolder            *folder;
  72         ModestHeaderViewStyle style;
  73
  74         TnyFolderMonitor     *monitor;
  75         GMutex               *monitor_lock;
  76 };
  77
  78 #define MODEST_HEADER_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  79                                                 MODEST_TYPE_HEADER_VIEW, \
  80                                                 ModestHeaderViewPrivate))
  81
  82
  83
  84 #define MODEST_HEADER_VIEW_PTR "modest-header-view"
  85
  86 enum {
  87         HEADER_SELECTED_SIGNAL,
  88         HEADER_ACTIVATED_SIGNAL,
  89         ITEM_NOT_FOUND_SIGNAL,
  90         STATUS_UPDATE_SIGNAL,
  91         LAST_SIGNAL
  92 };
  93
  94 /* globals */
  95 static GObjectClass *parent_class = NULL;
  96
  97 /* uncomment the following if you have defined any signals */
  98 static guint signals[LAST_SIGNAL] = {0};
  99
 100 GType
 101 modest_header_view_get_type (void)
 102 {
 103         static GType my_type = 0;
 104         if (!my_type) {
 105                 static const GTypeInfo my_info = {
 106                         sizeof(ModestHeaderViewClass),
 107                         NULL,           /* base init */
 108                         NULL,           /* base finalize */
 109                         (GClassInitFunc) modest_header_view_class_init,
 110                         NULL,           /* class finalize */
 111                         NULL,           /* class data */
 112                         sizeof(ModestHeaderView),
 113                         1,              /* n_preallocs */
 114                         (GInstanceInitFunc) modest_header_view_init,
 115                         NULL
 116                 };
 117                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
 118                                                   "ModestHeaderView",
 119                                                   &my_info, 0);
 120         }
 121         return my_type;
 122 }
 123
 124 static void
 125 modest_header_view_class_init (ModestHeaderViewClass *klass)
 126 {
 127         GObjectClass *gobject_class;
 128         gobject_class = (GObjectClass*) klass;
 129
 130         parent_class            = g_type_class_peek_parent (klass);
 131         gobject_class->finalize = modest_header_view_finalize;
 132
 133         g_type_class_add_private (gobject_class, sizeof(ModestHeaderViewPrivate));
 134
 135         signals[HEADER_SELECTED_SIGNAL] =
 136                 g_signal_new ("header_selected",
 137                               G_TYPE_FROM_CLASS (gobject_class),
 138                               G_SIGNAL_RUN_FIRST,
 139                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_selected),
 140                               NULL, NULL,
 141                               g_cclosure_marshal_VOID__POINTER,
 142                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 143
 144         signals[HEADER_ACTIVATED_SIGNAL] =
 145                 g_signal_new ("header_activated",
 146                               G_TYPE_FROM_CLASS (gobject_class),
 147                               G_SIGNAL_RUN_FIRST,
 148                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_activated),
 149                               NULL, NULL,
 150                               g_cclosure_marshal_VOID__POINTER,
 151                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 152
 153
 154         signals[ITEM_NOT_FOUND_SIGNAL] =
 155                 g_signal_new ("item_not_found",
 156                               G_TYPE_FROM_CLASS (gobject_class),
 157                               G_SIGNAL_RUN_FIRST,
 158                               G_STRUCT_OFFSET (ModestHeaderViewClass,item_not_found),
 159                               NULL, NULL,
 160                               g_cclosure_marshal_VOID__INT,
 161                               G_TYPE_NONE, 1, G_TYPE_INT);
 162
 163         signals[STATUS_UPDATE_SIGNAL] =
 164                 g_signal_new ("status_update",
 165                               G_TYPE_FROM_CLASS (gobject_class),
 166                               G_SIGNAL_RUN_FIRST,
 167                               G_STRUCT_OFFSET (ModestHeaderViewClass,status_update),
 168                               NULL, NULL,
 169                               modest_marshal_VOID__STRING_INT_INT,
 170                               G_TYPE_NONE, 3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
 171 }
 172
 173 static GtkTreeViewColumn*
 174 get_new_column (const gchar *name, GtkCellRenderer *renderer,
 175                 gboolean resizable, gint sort_col_id, gboolean show_as_text,
 176                 GtkTreeCellDataFunc cell_data_func, gpointer user_data)
 177 {
 178         GtkTreeViewColumn *column;
 179
 180         column =  gtk_tree_view_column_new_with_attributes(name, renderer, NULL);
 181         gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
 182
 183         gtk_tree_view_column_set_resizable (column, resizable);
 184         if (resizable)
 185                 gtk_tree_view_column_set_expand (column, TRUE);
 186
 187         if (show_as_text)
 188                 gtk_tree_view_column_add_attribute (column, renderer, "text",
 189                                                     sort_col_id);
 190         if (sort_col_id >= 0)
 191                 gtk_tree_view_column_set_sort_column_id (column, sort_col_id);
 192
 193         gtk_tree_view_column_set_sort_indicator (column, FALSE);
 194         gtk_tree_view_column_set_reorderable (column, TRUE);
 195
 196         if (cell_data_func)
 197                 gtk_tree_view_column_set_cell_data_func(column, renderer, cell_data_func,
 198                                                         user_data, NULL);
 199         return column;
 200 }
 201
 202
 203
 204
 205 static void
 206 remove_all_columns (ModestHeaderView *obj)
 207 {
 208         GList *columns, *cursor;
 209
 210         columns = gtk_tree_view_get_columns (GTK_TREE_VIEW(obj));
 211
 212         for (cursor = columns; cursor; cursor = cursor->next)
 213                 gtk_tree_view_remove_column (GTK_TREE_VIEW(obj),
 214                                              GTK_TREE_VIEW_COLUMN(cursor->data));
 215         g_list_free (columns);
 216 }
 217
 218 gboolean
 219 modest_header_view_set_columns (ModestHeaderView *self, const GList *columns)
 220 {
 221         GtkTreeModel *sortable;
 222         GtkTreeViewColumn *column=NULL;
 223         GtkTreeSelection *selection = NULL;
 224         GtkCellRenderer *renderer_msgtype,*renderer_header,
 225                 *renderer_attach,  *renderer_comptact_flag,
 226                 *renderer_compact_date;
 227         ModestHeaderViewPrivate *priv;
 228         const GList *cursor;
 229
 230         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 231
 232         /* FIXME: check whether these renderers need to be freed */
 233         renderer_msgtype = gtk_cell_renderer_pixbuf_new ();
 234         renderer_attach  = gtk_cell_renderer_pixbuf_new ();
 235         renderer_header  = gtk_cell_renderer_text_new ();
 236         renderer_comptact_flag  = gtk_cell_renderer_pixbuf_new ();
 237         renderer_compact_date  = gtk_cell_renderer_text_new ();
 238
 239         g_object_set(G_OBJECT(renderer_header),
 240                      "ellipsize", PANGO_ELLIPSIZE_END,
 241                      NULL);
 242         g_object_set(G_OBJECT(renderer_compact_date),
 243                      "xalign", 1.0,
 244                      NULL);
 245
 246         remove_all_columns (self);
 247
 248         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 249         gtk_tree_selection_set_mode(selection, GTK_SELECTION_MULTIPLE);
 250         sortable = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 251
 252         /* Add new columns */
 253         for (cursor = columns; cursor; cursor = g_list_next(cursor)) {
 254                 ModestHeaderViewColumn col =
 255                         (ModestHeaderViewColumn) GPOINTER_TO_INT(cursor->data);
 256
 257                 if (0> col || col >= MODEST_HEADER_VIEW_COLUMN_NUM) {
 258                         g_printerr ("modest: invalid column %d in column list\n", col);
 259                         continue;
 260                 }
 261
 262                 switch (col) {
 263
 264                 case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
 265                         column = get_new_column (_("M"), renderer_msgtype, FALSE,
 266                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 267                                                  FALSE,
 268                                                  (GtkTreeCellDataFunc)_modest_header_view_msgtype_cell_data,
 269                                                  NULL);
 270                         gtk_tree_view_column_set_fixed_width (column, 45);
 271                         break;
 272
 273                 case MODEST_HEADER_VIEW_COLUMN_ATTACH:
 274                         column = get_new_column (_("A"), renderer_attach, FALSE,
 275                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 276                                                  FALSE,
 277                                                  (GtkTreeCellDataFunc)_modest_header_view_attach_cell_data,
 278                                                  NULL);
 279                         gtk_tree_view_column_set_fixed_width (column, 45);
 280                         break;
 281
 282
 283                 case MODEST_HEADER_VIEW_COLUMN_FROM:
 284                         column = get_new_column (_("From"), renderer_header, TRUE,
 285                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 286                                                  TRUE,
 287                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 288                                                  GINT_TO_POINTER(TRUE));
 289                         break;
 290
 291                 case MODEST_HEADER_VIEW_COLUMN_TO:
 292                         column = get_new_column (_("To"), renderer_header, TRUE,
 293                                                  TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN,
 294                                                  TRUE,
 295                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 296                                                  GINT_TO_POINTER(FALSE));
 297                         break;
 298
 299                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_FLAG:
 300                         column = get_new_column (_("F"), renderer_comptact_flag, FALSE,
 301                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 302                                                  FALSE,
 303                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_flag_cell_data,
 304                                                  NULL);
 305                         gtk_tree_view_column_set_fixed_width (column, 45);
 306                         break;
 307
 308                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 309                         column = get_new_column (_("Header"), renderer_header, TRUE,
 310                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 311                                                  TRUE,
 312                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 313                                                  GINT_TO_POINTER(TRUE));
 314                         break;
 315
 316                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
 317                         column = get_new_column (_("Header"), renderer_header, TRUE,
 318                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 319                                                  TRUE,
 320                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 321                                                  GINT_TO_POINTER(FALSE));
 322                         break;
 323
 324
 325                 case MODEST_HEADER_VIEW_COLUMN_SUBJECT:
 326                         column = get_new_column (_("Subject"), renderer_header, TRUE,
 327                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 328                                                  TRUE,
 329                                                  (GtkTreeCellDataFunc)_modest_header_view_header_cell_data,
 330                                                  NULL);
 331                         break;
 332
 333                 case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
 334                         column = get_new_column (_("Received"), renderer_header, TRUE,
 335                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 336                                                  TRUE,
 337                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 338                                                  GINT_TO_POINTER(TRUE));
 339                         break;
 340
 341                 case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
 342                         column = get_new_column (_("Sent"), renderer_header, TRUE,
 343                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 344                                                  TRUE,
 345                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 346                                                  GINT_TO_POINTER(FALSE));
 347                         break;
 348
 349                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_RECEIVED_DATE:
 350                         column = get_new_column (_("Received"), renderer_compact_date, FALSE,
 351                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 352                                                  TRUE,
 353                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_date_cell_data,
 354                                                  GINT_TO_POINTER(TRUE));
 355                         gtk_tree_view_column_set_fixed_width (column, 130);
 356                         break;
 357
 358                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_SENT_DATE:
 359                         column = get_new_column (_("Sent"), renderer_compact_date, FALSE,
 360                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 361                                                  TRUE,
 362                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_date_cell_data,
 363                                                  GINT_TO_POINTER(FALSE));
 364                         gtk_tree_view_column_set_fixed_width (column, 130);
 365                         break;
 366                 case MODEST_HEADER_VIEW_COLUMN_SIZE:
 367                         column = get_new_column (_("Size"), renderer_header, TRUE,
 368                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 369                                                  FALSE,
 370                                                  (GtkTreeCellDataFunc)_modest_header_view_size_cell_data,
 371                                                  NULL);
 372                         break;
 373                 case MODEST_HEADER_VIEW_COLUMN_STATUS:
 374                         column = get_new_column (_("Status"), renderer_compact_date, TRUE,
 375                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 376                                                  FALSE,
 377                                                  (GtkTreeCellDataFunc)_modest_header_view_status_cell_data,
 378                                                  NULL);
 379                         break;
 380
 381                 default:
 382                         g_return_val_if_reached(FALSE);
 383                 }
 384
 385                 if (sortable)
 386                         gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 387                                                          col, (GtkTreeIterCompareFunc)cmp_rows,
 388                                                          column, NULL);
 389
 390                 /* we keep the column id around */
 391                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_COLUMN,
 392                                    GINT_TO_POINTER(col));
 393
 394                 /* we need this ptr when sorting the rows */
 395                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_PTR,
 396                                    self);
 397                 gtk_tree_view_append_column (GTK_TREE_VIEW(self), column);
 398         }
 399
 400         return TRUE;
 401 }
 402
 403 static void
 404 modest_header_view_init (ModestHeaderView *obj)
 405 {
 406         ModestHeaderViewPrivate *priv;
 407
 408         priv = MODEST_HEADER_VIEW_GET_PRIVATE(obj);
 409
 410         priv->folder  = NULL;
 411
 412         priv->monitor        = NULL;
 413         priv->monitor_lock   = g_mutex_new ();
 414
 415
 416         setup_drag_and_drop (GTK_TREE_VIEW (obj));
 417 }
 418
 419 static void
 420 modest_header_view_finalize (GObject *obj)
 421 {
 422         ModestHeaderView        *self;
 423         ModestHeaderViewPrivate *priv;
 424
 425         self = MODEST_HEADER_VIEW(obj);
 426         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 427
 428         g_mutex_lock (priv->monitor_lock);
 429         if (priv->monitor) {
 430                 tny_folder_monitor_stop (priv->monitor);
 431                 g_object_unref (G_OBJECT (priv->monitor));
 432         }
 433         g_mutex_unlock (priv->monitor_lock);
 434         g_mutex_free (priv->monitor_lock);
 435
 436         if (priv->folder) {
 437                 g_object_unref (G_OBJECT (priv->folder));
 438                 priv->folder   = NULL;
 439         }
 440
 441         G_OBJECT_CLASS(parent_class)->finalize (obj);
 442 }
 443
 444
 445 GtkWidget*
 446 modest_header_view_new (TnyFolder *folder, ModestHeaderViewStyle style)
 447 {
 448         GObject *obj;
 449         GtkTreeSelection *sel;
 450         ModestHeaderView *self;
 451         ModestHeaderViewPrivate *priv;
 452
 453         g_return_val_if_fail (style >= 0 && style < MODEST_HEADER_VIEW_STYLE_NUM,
 454                               NULL);
 455
 456         obj  = G_OBJECT(g_object_new(MODEST_TYPE_HEADER_VIEW, NULL));
 457         self = MODEST_HEADER_VIEW(obj);
 458         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 459
 460         modest_header_view_set_style   (self, style);
 461         modest_header_view_set_folder (self, NULL);
 462
 463         gtk_tree_view_columns_autosize (GTK_TREE_VIEW(obj));
 464         gtk_tree_view_set_fixed_height_mode (GTK_TREE_VIEW(obj),TRUE);
 465         gtk_tree_view_set_enable_search (GTK_TREE_VIEW(obj), TRUE);
 466
 467         gtk_tree_view_set_rules_hint (GTK_TREE_VIEW(obj),
 468                                       TRUE); /* alternating row colors */
 469         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 470
 471         g_signal_connect (sel, "changed",
 472                           G_CALLBACK(on_selection_changed), self);
 473
 474         g_signal_connect (self, "button-press-event",
 475                           G_CALLBACK(on_header_clicked), NULL);
 476
 477         g_signal_connect (self, "focus-in-event",
 478                           G_CALLBACK(on_focus_in), NULL);
 479
 480         return GTK_WIDGET(self);
 481 }
 482
 483
 484 TnyList *
 485 modest_header_view_get_selected_headers (ModestHeaderView *self)
 486 {
 487         GtkTreeSelection *sel;
 488         ModestHeaderViewPrivate *priv;
 489         TnyList *header_list = NULL;
 490         TnyHeader *header;
 491         GList *list, *tmp = NULL;
 492         GtkTreeModel *tree_model = NULL;
 493         GtkTreeIter iter;
 494
 495         g_return_val_if_fail (self, NULL);
 496
 497         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 498
 499         /* Get selected rows */
 500         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 501         list = gtk_tree_selection_get_selected_rows (sel, &tree_model);
 502
 503         if (list) {
 504                 header_list = tny_simple_list_new();
 505
 506                 list = g_list_reverse (list);
 507                 tmp = list;
 508                 while (tmp) {
 509                         /* get header from selection */
 510                         gtk_tree_model_get_iter (tree_model, &iter, (GtkTreePath *) (tmp->data));
 511                         gtk_tree_model_get (tree_model, &iter,
 512                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 513                                             &header, -1);
 514                         /* Prepend to list */
 515                         tny_list_prepend (header_list, G_OBJECT (header));
 516                         g_object_unref (G_OBJECT (header));
 517
 518                         tmp = g_list_next (tmp);
 519                 }
 520                 /* Clean up*/
 521                 g_list_foreach (list, (GFunc) gtk_tree_path_free, NULL);
 522                 g_list_free (list);
 523         }
 524         return header_list;
 525 }
 526
 527
 528 /* scroll our list view so the selected item is visible */
 529 static void
 530 scroll_to_selected (ModestHeaderView *self, GtkTreeIter *iter, gboolean up)
 531 {
 532 #ifdef MODEST_PLATFORM_GNOME
 533
 534         GtkTreePath *selected_path;
 535         GtkTreePath *start, *end;
 536
 537         GtkTreeModel *model;
 538
 539         model         = gtk_tree_view_get_model (GTK_TREE_VIEW(self));
 540         selected_path = gtk_tree_model_get_path (model, iter);
 541
 542         start = gtk_tree_path_new ();
 543         end   = gtk_tree_path_new ();
 544
 545         gtk_tree_view_get_visible_range (GTK_TREE_VIEW(self), &start, &end);
 546
 547         if (gtk_tree_path_compare (selected_path, start) < 0 ||
 548             gtk_tree_path_compare (end, selected_path) < 0)
 549                 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW(self),
 550                                               selected_path, NULL, TRUE,
 551                                               up ? 0.0 : 1.0,
 552                                               up ? 0.0 : 1.0);
 553         gtk_tree_path_free (selected_path);
 554         gtk_tree_path_free (start);
 555         gtk_tree_path_free (end);
 556
 557 #endif /* MODEST_PLATFORM_GNOME */
 558 }
 559
 560
 561 void
 562 modest_header_view_select_next (ModestHeaderView *self)
 563 {
 564         GtkTreeSelection *sel;
 565         GtkTreeIter iter;
 566         GtkTreeModel *model;
 567         GtkTreePath *path;
 568
 569         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 570         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 571         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 572                 /* Unselect previous path */
 573                 gtk_tree_selection_unselect_path (sel, path);
 574
 575                 /* Move path down and selects new one  */
 576                 if (gtk_tree_model_iter_next (model, &iter)) {
 577                         gtk_tree_selection_select_iter (sel, &iter);
 578                         scroll_to_selected (self, &iter, FALSE);
 579                 }
 580                 gtk_tree_path_free(path);
 581         }
 582
 583 }
 584
 585 void
 586 modest_header_view_select_prev (ModestHeaderView *self)
 587 {
 588         GtkTreeSelection *sel;
 589         GtkTreeIter iter;
 590         GtkTreeModel *model;
 591         GtkTreePath *path;
 592
 593         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 594         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 595         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 596                 /* Unselect previous path */
 597                 gtk_tree_selection_unselect_path (sel, path);
 598
 599                 /* Move path up */
 600                 if (gtk_tree_path_prev (path)) {
 601                         gtk_tree_model_get_iter (model, &iter, path);
 602
 603                         /* Select the new one */
 604                         gtk_tree_selection_select_iter (sel, &iter);
 605                         scroll_to_selected (self, &iter, TRUE);
 606
 607                 }
 608                 gtk_tree_path_free (path);
 609         }
 610 }
 611
 612 GList*
 613 modest_header_view_get_columns (ModestHeaderView *self)
 614 {
 615         g_return_val_if_fail (self, FALSE);
 616         return gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 617 }
 618
 619 gboolean
 620 modest_header_view_is_empty (ModestHeaderView *self)
 621 {
 622         g_return_val_if_fail (self, FALSE);
 623         return FALSE; /* FIXME */
 624 }
 625
 626
 627 gboolean
 628 modest_header_view_set_style (ModestHeaderView *self,
 629                               ModestHeaderViewStyle style)
 630 {
 631         ModestHeaderViewPrivate *priv;
 632         gboolean show_col_headers = FALSE;
 633         ModestHeaderViewStyle old_style;
 634
 635         g_return_val_if_fail (self, FALSE);
 636         g_return_val_if_fail (style >= 0 && MODEST_HEADER_VIEW_STYLE_NUM,
 637                               FALSE);
 638
 639         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 640         if (priv->style == style)
 641                 return TRUE; /* nothing to do */
 642
 643         switch (style) {
 644         case MODEST_HEADER_VIEW_STYLE_DETAILS:
 645                 show_col_headers = TRUE;
 646                 break;
 647         case MODEST_HEADER_VIEW_STYLE_TWOLINES:
 648                 break;
 649         default:
 650                 g_return_val_if_reached (FALSE);
 651         }
 652         gtk_tree_view_set_headers_visible   (GTK_TREE_VIEW(self), show_col_headers);
 653         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(self), show_col_headers);
 654
 655         old_style   = priv->style;
 656         priv->style = style;
 657
 658         return TRUE;
 659 }
 660
 661
 662 ModestHeaderViewStyle
 663 modest_header_view_get_style (ModestHeaderView *self)
 664 {
 665         g_return_val_if_fail (self, FALSE);
 666         return MODEST_HEADER_VIEW_GET_PRIVATE(self)->style;
 667 }
 668
 669 /*
 670  * This function sets a sortable model in the header view. It's just
 671  * used for developing purposes, because it only does a
 672  * gtk_tree_view_set_model
 673  */
 674 static void
 675 modest_header_view_set_model (GtkTreeView *header_view, GtkTreeModel *model)
 676 {
 677         GtkTreeModel *old_model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
 678
 679         if (old_model_sort && GTK_IS_TREE_MODEL_SORT (old_model_sort)) {
 680                 GtkTreeModel *old_model;
 681                 ModestHeaderViewPrivate *priv;
 682
 683                 priv = MODEST_HEADER_VIEW_GET_PRIVATE (header_view);
 684                 old_model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (old_model_sort));
 685
 686                 /* Set new model */
 687                 gtk_tree_view_set_model (header_view, model);
 688
 689                 modest_runtime_verify_object_death (old_model, "");
 690                 modest_runtime_verify_object_death (old_model_sort, "");
 691         } else
 692                 gtk_tree_view_set_model (header_view, model);
 693
 694         return;
 695 }
 696
 697 static void
 698 on_progress_changed (ModestMailOperation *mail_op,
 699                      ModestHeaderView *self)
 700 {
 701         GtkTreeModel *sortable;
 702         ModestHeaderViewPrivate *priv;
 703         GList *cols, *cursor;
 704         TnyList *headers;
 705
 706         if (!modest_mail_operation_is_finished (mail_op))
 707                 return;
 708
 709         if (modest_mail_operation_get_error (mail_op))
 710                 return;
 711
 712         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 713
 714         headers = TNY_LIST (tny_gtk_header_list_model_new ());
 715
 716         tny_gtk_header_list_model_set_folder (TNY_GTK_HEADER_LIST_MODEL(headers),
 717                                               priv->folder, TRUE);
 718
 719         sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(headers));
 720         g_object_unref (G_OBJECT (headers));
 721
 722         /* install our special sorting functions */
 723         cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 724         while (cursor) {
 725                 gint col_id = GPOINTER_TO_INT (g_object_get_data(G_OBJECT(cursor->data),
 726                                                                  MODEST_HEADER_VIEW_COLUMN));
 727                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 728                                                  col_id,
 729                                                  (GtkTreeIterCompareFunc) cmp_rows,
 730                                                  cursor->data, NULL);
 731                 cursor = g_list_next(cursor);
 732         }
 733         g_list_free (cols);
 734
 735         /* Set new model */
 736         modest_header_view_set_model (GTK_TREE_VIEW (self), sortable);
 737         g_object_unref (G_OBJECT (sortable));
 738
 739         /* Add a folder observer */
 740         g_mutex_lock (priv->monitor_lock);
 741         priv->monitor = TNY_FOLDER_MONITOR (tny_folder_monitor_new (priv->folder));
 742         tny_folder_monitor_add_list (priv->monitor, TNY_LIST (headers));
 743         tny_folder_monitor_start (priv->monitor);
 744         g_mutex_unlock (priv->monitor_lock);
 745 }
 746
 747 TnyFolder*
 748 modest_header_view_get_folder (ModestHeaderView *self)
 749 {
 750         ModestHeaderViewPrivate *priv;
 751         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 752
 753         if (priv->folder)
 754                 g_object_ref (priv->folder);
 755
 756         return priv->folder;
 757 }
 758
 759 static void
 760 modest_header_view_set_folder_intern (ModestHeaderView *self, TnyFolder *folder)
 761 {
 762         TnyList *headers;
 763         ModestHeaderViewPrivate *priv;
 764         GList *cols, *cursor;
 765         GtkTreeModel *sortable;
 766
 767         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 768
 769         headers = TNY_LIST (tny_gtk_header_list_model_new ());
 770
 771         tny_gtk_header_list_model_set_folder (TNY_GTK_HEADER_LIST_MODEL(headers),
 772                                               folder, FALSE);
 773
 774         /* Add a folder observer */
 775         g_mutex_lock (priv->monitor_lock);
 776         if (priv->monitor) {
 777                 tny_folder_monitor_stop (priv->monitor);
 778                 g_object_unref (G_OBJECT (priv->monitor));
 779         }
 780         priv->monitor = TNY_FOLDER_MONITOR (tny_folder_monitor_new (folder));
 781         tny_folder_monitor_add_list (priv->monitor, TNY_LIST (headers));
 782         tny_folder_monitor_start (priv->monitor);
 783         g_mutex_unlock (priv->monitor_lock);
 784
 785
 786         sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(headers));
 787         g_object_unref (G_OBJECT (headers));
 788
 789         /* install our special sorting functions */
 790         cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 791         while (cursor) {
 792                 gint col_id = GPOINTER_TO_INT (g_object_get_data(G_OBJECT(cursor->data),
 793                                                                  MODEST_HEADER_VIEW_COLUMN));
 794                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 795                                                  col_id,
 796                                                  (GtkTreeIterCompareFunc) cmp_rows,
 797                                                  cursor->data, NULL);
 798                 cursor = g_list_next(cursor);
 799         }
 800         g_list_free (cols);
 801
 802
 803         /* Set new model */
 804         modest_header_view_set_model (GTK_TREE_VIEW (self), sortable);
 805         g_object_unref (G_OBJECT (sortable));
 806 }
 807
 808 void
 809 modest_header_view_set_folder (ModestHeaderView *self, TnyFolder *folder)
 810 {
 811         ModestHeaderViewPrivate *priv;
 812
 813         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 814
 815         if (priv->folder) {
 816                 g_object_unref (priv->folder);
 817                 priv->folder = NULL;
 818         }
 819
 820         if (folder) {
 821                 ModestMailOperation *mail_op;
 822
 823                 modest_header_view_set_folder_intern (self, folder);
 824
 825                 /* Pick my reference. Nothing to do with the mail operation */
 826                 priv->folder = g_object_ref (folder);
 827
 828                 /* no message selected */
 829                 g_signal_emit (G_OBJECT(self), signals[HEADER_SELECTED_SIGNAL], 0, NULL);
 830
 831                 /* Create the mail operation */
 832                 mail_op = modest_mail_operation_new ();
 833                 modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
 834                                                  mail_op);
 835
 836                 /* Register a mail operation observer */
 837                 g_signal_connect (mail_op, "progress-changed",
 838                                   G_CALLBACK (on_progress_changed), self);
 839
 840                 /* Refresh the folder asynchronously */
 841                 modest_mail_operation_refresh_folder (mail_op, folder);
 842
 843                 /* Free */
 844                 g_object_unref (mail_op);
 845
 846         } else {
 847                 g_mutex_lock (priv->monitor_lock);
 848                 modest_header_view_set_model (GTK_TREE_VIEW (self), NULL);
 849
 850                 if (priv->monitor) {
 851                         tny_folder_monitor_stop (priv->monitor);
 852                         g_object_unref (G_OBJECT (priv->monitor));
 853                         priv->monitor = NULL;
 854                 }
 855                 g_mutex_unlock (priv->monitor_lock);
 856         }
 857 }
 858
 859 static gboolean
 860 on_header_clicked (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
 861 {
 862         ModestHeaderView *self = NULL;
 863         ModestHeaderViewPrivate *priv = NULL;
 864         GtkTreePath *path = NULL;
 865         GtkTreeIter iter;
 866         GtkTreeModel *model = NULL;
 867         TnyHeader *header;
 868         /* ignore everything but doubleclick */
 869         if (event->type != GDK_2BUTTON_PRESS)
 870                 return FALSE;
 871
 872         self = MODEST_HEADER_VIEW (widget);
 873         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 874
 875         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 876         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
 877                 return FALSE;
 878
 879         /* get the first selected item */
 880         gtk_tree_model_get (model, &iter,
 881                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 882                             &header, -1);
 883         /* Emit signal */
 884         g_signal_emit (G_OBJECT(self),
 885                        signals[HEADER_ACTIVATED_SIGNAL],
 886                        0, header);
 887
 888         /* Free */
 889         g_object_unref (G_OBJECT (header));
 890         gtk_tree_path_free(path);
 891
 892         return TRUE;
 893 }
 894
 895
 896 static void
 897 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
 898 {
 899         GtkTreeModel *model;
 900         TnyHeader *header;
 901         GtkTreePath *path = NULL;
 902         GtkTreeIter iter;
 903         ModestHeaderView *self;
 904         ModestHeaderViewPrivate *priv;
 905
 906         g_return_if_fail (sel);
 907         g_return_if_fail (user_data);
 908
 909         self = MODEST_HEADER_VIEW (user_data);
 910         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 911
 912         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 913         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
 914                 return; /* msg was _un_selected */
 915
 916         gtk_tree_model_get (model, &iter,
 917                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 918                             &header, -1);
 919
 920         /* Emit signal */
 921         g_signal_emit (G_OBJECT(self),
 922                        signals[HEADER_SELECTED_SIGNAL],
 923                        0, header);
 924
 925         g_object_unref (G_OBJECT (header));
 926         gtk_tree_path_free(path);
 927 }
 928
 929
 930 /* PROTECTED method. It's useful when we want to force a given
 931    selection to reload a msg. For example if we have selected a header
 932    in offline mode, when Modest become online, we want to reload the
 933    message automatically without an user click over the header */
 934 void
 935 _modest_header_view_change_selection (GtkTreeSelection *selection,
 936                                       gpointer user_data)
 937 {
 938         g_return_if_fail (GTK_IS_TREE_SELECTION (selection));
 939         g_return_if_fail (MODEST_IS_HEADER_VIEW (user_data));
 940
 941         on_selection_changed (selection, user_data);
 942 }
 943
 944
 945 static gint
 946 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
 947           gpointer user_data)
 948 {
 949         gint col_id;
 950         gint t1, t2;
 951         gint val1, val2;
 952         gchar *s1, *s2;
 953         gint cmp;
 954
 955         static int counter = 0;
 956         col_id = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(user_data), MODEST_HEADER_VIEW_COLUMN));
 957
 958         if (!(++counter % 100)) {
 959                 GObject *header_view = g_object_get_data(G_OBJECT(user_data),
 960                                                          MODEST_HEADER_VIEW_PTR);
 961                 g_signal_emit (header_view,
 962                                signals[STATUS_UPDATE_SIGNAL],
 963                                0, _("Sorting..."), 0, 0);
 964         }
 965         switch (col_id) {
 966
 967                 /* first one, we decide based on the time */
 968         case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 969         case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
 970
 971                 gtk_tree_model_get (tree_model, iter1,
 972                                     TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 973                                     &t1,-1);
 974                 gtk_tree_model_get (tree_model, iter2,
 975                                     TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 976                                     &t2,-1);
 977                 return t1 - t2;
 978
 979         case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
 980         case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
 981                 gtk_tree_model_get (tree_model, iter1,
 982                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 983                                     &t1,-1);
 984                 gtk_tree_model_get (tree_model, iter2,
 985                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 986                                     &t2,-1);
 987                 return t1 - t2;
 988
 989
 990                 /* next ones, we try the search criteria first, if they're the same, then we use 'sent date' */
 991                 /* FIXME: what about received-date? */
 992         case MODEST_HEADER_VIEW_COLUMN_SUBJECT: {
 993
 994                 gtk_tree_model_get (tree_model, iter1,
 995                                     TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &s1,
 996                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
 997                                     -1);
 998                 gtk_tree_model_get (tree_model, iter2,
 999                                     TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &s2,
1000                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
1001                                     -1);
1002
1003                 /* the prefix ('Re:', 'Fwd:' etc.) we ignore */
1004                 cmp = modest_text_utils_utf8_strcmp (s1 + modest_text_utils_get_subject_prefix_len(s1),
1005                                                      s2 + modest_text_utils_get_subject_prefix_len(s2),
1006                                                      TRUE);
1007                 g_free (s1);
1008                 g_free (s2);
1009
1010                 return cmp ? cmp : t1 - t2;
1011         }
1012
1013         case MODEST_HEADER_VIEW_COLUMN_FROM:
1014
1015                 gtk_tree_model_get (tree_model, iter1,
1016                                     TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN, &s1,
1017                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
1018                                     -1);
1019                 gtk_tree_model_get (tree_model, iter2,
1020                                     TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN, &s2,
1021                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
1022                                     -1);
1023                 cmp = modest_text_utils_utf8_strcmp (s1, s2, TRUE);
1024                 g_free (s1);
1025                 g_free (s2);
1026
1027                 return cmp ? cmp : t1 - t2;
1028
1029         case MODEST_HEADER_VIEW_COLUMN_TO:
1030
1031                 gtk_tree_model_get (tree_model, iter1,
1032                                     TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN, &s1,
1033                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
1034                                     -1);
1035                 gtk_tree_model_get (tree_model, iter2,
1036                                     TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN, &s2,
1037                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
1038                                     -1);
1039                 cmp = modest_text_utils_utf8_strcmp (s1, s2, TRUE);
1040                 g_free (s1);
1041                 g_free (s2);
1042
1043                 return cmp ? cmp : t1 - t2;
1044
1045         case MODEST_HEADER_VIEW_COLUMN_ATTACH:
1046
1047                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1048                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1, -1);
1049                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1050                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2, -1);
1051
1052                 cmp = (val1 & TNY_HEADER_FLAG_ATTACHMENTS) -
1053                         (val2 & TNY_HEADER_FLAG_ATTACHMENTS);
1054
1055                 return cmp ? cmp : t1 - t2;
1056
1057         case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
1058                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1059                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,-1);
1060                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1061                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,-1);
1062                 cmp =  (val1 & TNY_HEADER_FLAG_SEEN) - (val2 & TNY_HEADER_FLAG_SEEN);
1063
1064                 return cmp ? cmp : t1 - t2;
1065
1066         default:
1067                 return &iter1 - &iter2; /* oughhhh  */
1068         }
1069 }
1070
1071 /* Drag and drop stuff */
1072 static void
1073 drag_data_get_cb (GtkWidget *widget, GdkDragContext *context,
1074                   GtkSelectionData *selection_data,
1075                   guint info,  guint time, gpointer data)
1076 {
1077         GtkTreeModel *model;
1078         GtkTreeIter iter;
1079         GtkTreePath *source_row;
1080
1081         source_row = get_selected_row (GTK_TREE_VIEW(widget), &model);
1082         if ((source_row == NULL) || (!gtk_tree_model_get_iter(model, &iter, source_row))) return;
1083
1084         switch (info) {
1085         case MODEST_HEADER_ROW:
1086                 gtk_tree_set_row_drag_data (selection_data, model, source_row);
1087                 break;
1088         case MODEST_MSG: {
1089                 TnyHeader *hdr;
1090                 gtk_tree_model_get (model, &iter,
1091                                     TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN, &hdr,
1092                                     -1);
1093                 if (hdr) {
1094                         g_object_unref (G_OBJECT(hdr));
1095                 }
1096                 break;
1097         }
1098         default:
1099                 g_message ("default");
1100         }
1101
1102         gtk_tree_path_free (source_row);
1103 }
1104
1105 /* Header view drag types */
1106 const GtkTargetEntry header_view_drag_types[] = {
1107         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP, MODEST_HEADER_ROW },
1108         { "text/uri-list",      0,                   MODEST_MSG },
1109
1110 };
1111
1112 static void
1113 setup_drag_and_drop (GtkTreeView *self)
1114 {
1115         gtk_drag_source_set (GTK_WIDGET (self),
1116                              GDK_BUTTON1_MASK,
1117                              header_view_drag_types,
1118                              G_N_ELEMENTS (header_view_drag_types),
1119                              GDK_ACTION_MOVE | GDK_ACTION_COPY);
1120
1121         g_signal_connect(G_OBJECT (self), "drag_data_get",
1122                          G_CALLBACK(drag_data_get_cb), NULL);
1123 }
1124
1125 static GtkTreePath *
1126 get_selected_row (GtkTreeView *self, GtkTreeModel **model)
1127 {
1128         GtkTreePath *path = NULL;
1129         GtkTreeSelection *sel = NULL;
1130         GList *rows = NULL;
1131
1132         sel   = gtk_tree_view_get_selection(self);
1133         rows = gtk_tree_selection_get_selected_rows (sel, model);
1134
1135         if ((rows == NULL) || (g_list_length(rows) != 1))
1136                 goto frees;
1137
1138         path = gtk_tree_path_copy(g_list_nth_data (rows, 0));
1139
1140
1141         /* Free */
1142  frees:
1143         g_list_foreach(rows,(GFunc) gtk_tree_path_free, NULL);
1144         g_list_free(rows);
1145
1146         return path;
1147 }
1148
1149 /*
1150  * This function moves the tree view scroll to the current selected
1151  * row when the widget grabs the focus
1152  */
1153 static gboolean
1154 on_focus_in (GtkWidget     *self,
1155              GdkEventFocus *event,
1156              gpointer       user_data)
1157 {
1158         GtkTreeSelection *selection;
1159         GtkTreeModel *model;
1160         GList *selected = NULL;
1161         GtkTreePath *selected_path = NULL;
1162
1163         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
1164         if (!model)
1165                 return FALSE;
1166
1167         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
1168         /* If none selected yet, pick the first one */
1169         if (gtk_tree_selection_count_selected_rows (selection) == 0) {
1170                 GtkTreeIter iter;
1171                 GtkTreePath *path;
1172
1173                 /* Return if the model is empty */
1174                 if (!gtk_tree_model_get_iter_first (model, &iter))
1175                         return FALSE;
1176
1177                 path = gtk_tree_model_get_path (model, &iter);
1178                 gtk_tree_selection_select_path (selection, path);
1179                 gtk_tree_path_free (path);
1180         }
1181
1182         /* Need to get the all the rows because is selection multiple */
1183         selected = gtk_tree_selection_get_selected_rows (selection, &model);
1184         selected_path = (GtkTreePath *) selected->data;
1185
1186         /* Check if we need to scroll */
1187         #if GTK_CHECK_VERSION(2, 8, 0) /* TODO: gtk_tree_view_get_visible_range() is only available in GTK+ 2.8 */
1188         GtkTreePath *start_path = NULL;
1189         GtkTreePath *end_path = NULL;
1190         if (gtk_tree_view_get_visible_range (GTK_TREE_VIEW (self),
1191                                              &start_path,
1192                                              &end_path)) {
1193
1194                 if ((gtk_tree_path_compare (start_path, selected_path) != -1) ||
1195                     (gtk_tree_path_compare (end_path, selected_path) != 1)) {
1196
1197                         /* Scroll to first path */
1198                         gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (self),
1199                                                       selected_path,
1200                                                       NULL,
1201                                                       TRUE,
1202                                                       0.5,
1203                                                       0.0);
1204                 }
1205         }
1206         #endif /* GTK_CHECK_VERSION */
1207
1208         /* Frees */
1209         g_list_foreach (selected, (GFunc) gtk_tree_path_free, NULL);
1210         g_list_free (selected);
1211
1212         return FALSE;
1213 }