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 <string.h>
  34
  35 #include <modest-header-view.h>
  36 #include <modest-header-view-priv.h>
  37 #include <modest-dnd.h>
  38
  39 #include <modest-marshal.h>
  40 #include <modest-text-utils.h>
  41 #include <modest-icon-names.h>
  42 #include <modest-runtime.h>
  43
  44 static void modest_header_view_class_init  (ModestHeaderViewClass *klass);
  45 static void modest_header_view_init        (ModestHeaderView *obj);
  46 static void modest_header_view_finalize    (GObject *obj);
  47
  48 static gboolean     on_header_clicked      (GtkWidget *widget,
  49                                             GdkEventButton *event,
  50                                             gpointer user_data);
  51
  52 static gint         cmp_rows               (GtkTreeModel *tree_model,
  53                                             GtkTreeIter *iter1,
  54                                             GtkTreeIter *iter2,
  55                                             gpointer user_data);
  56
  57 static void         on_selection_changed   (GtkTreeSelection *sel,
  58                                             gpointer user_data);
  59
  60 static void         setup_drag_and_drop    (GtkTreeView *self);
  61
  62
  63 typedef struct _ModestHeaderViewPrivate ModestHeaderViewPrivate;
  64 struct _ModestHeaderViewPrivate {
  65         TnyFolder            *folder;
  66         TnyList              *headers;
  67         ModestHeaderViewStyle style;
  68 };
  69
  70 #define MODEST_HEADER_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  71                                                 MODEST_TYPE_HEADER_VIEW, \
  72                                                 ModestHeaderViewPrivate))
  73
  74
  75
  76 #define MODEST_HEADER_VIEW_PTR "modest-header-view"
  77
  78 enum {
  79         HEADER_SELECTED_SIGNAL,
  80         HEADER_ACTIVATED_SIGNAL,
  81         ITEM_NOT_FOUND_SIGNAL,
  82         STATUS_UPDATE_SIGNAL,
  83         LAST_SIGNAL
  84 };
  85
  86 /* globals */
  87 static GObjectClass *parent_class = NULL;
  88
  89 /* uncomment the following if you have defined any signals */
  90 static guint signals[LAST_SIGNAL] = {0};
  91
  92 GType
  93 modest_header_view_get_type (void)
  94 {
  95         static GType my_type = 0;
  96         if (!my_type) {
  97                 static const GTypeInfo my_info = {
  98                         sizeof(ModestHeaderViewClass),
  99                         NULL,           /* base init */
 100                         NULL,           /* base finalize */
 101                         (GClassInitFunc) modest_header_view_class_init,
 102                         NULL,           /* class finalize */
 103                         NULL,           /* class data */
 104                         sizeof(ModestHeaderView),
 105                         1,              /* n_preallocs */
 106                         (GInstanceInitFunc) modest_header_view_init,
 107                         NULL
 108                 };
 109                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
 110                                                   "ModestHeaderView",
 111                                                   &my_info, 0);
 112         }
 113         return my_type;
 114 }
 115
 116 static void
 117 modest_header_view_class_init (ModestHeaderViewClass *klass)
 118 {
 119         GObjectClass *gobject_class;
 120         gobject_class = (GObjectClass*) klass;
 121
 122         parent_class            = g_type_class_peek_parent (klass);
 123         gobject_class->finalize = modest_header_view_finalize;
 124
 125         g_type_class_add_private (gobject_class, sizeof(ModestHeaderViewPrivate));
 126
 127         signals[HEADER_SELECTED_SIGNAL] =
 128                 g_signal_new ("header_selected",
 129                               G_TYPE_FROM_CLASS (gobject_class),
 130                               G_SIGNAL_RUN_FIRST,
 131                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_selected),
 132                               NULL, NULL,
 133                               g_cclosure_marshal_VOID__POINTER,
 134                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 135
 136         signals[HEADER_ACTIVATED_SIGNAL] =
 137                 g_signal_new ("header_activated",
 138                               G_TYPE_FROM_CLASS (gobject_class),
 139                               G_SIGNAL_RUN_FIRST,
 140                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_activated),
 141                               NULL, NULL,
 142                               g_cclosure_marshal_VOID__POINTER,
 143                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 144
 145
 146         signals[ITEM_NOT_FOUND_SIGNAL] =
 147                 g_signal_new ("item_not_found",
 148                               G_TYPE_FROM_CLASS (gobject_class),
 149                               G_SIGNAL_RUN_FIRST,
 150                               G_STRUCT_OFFSET (ModestHeaderViewClass,item_not_found),
 151                               NULL, NULL,
 152                               g_cclosure_marshal_VOID__INT,
 153                               G_TYPE_NONE, 1, G_TYPE_INT);
 154
 155         signals[STATUS_UPDATE_SIGNAL] =
 156                 g_signal_new ("status_update",
 157                               G_TYPE_FROM_CLASS (gobject_class),
 158                               G_SIGNAL_RUN_FIRST,
 159                               G_STRUCT_OFFSET (ModestHeaderViewClass,status_update),
 160                               NULL, NULL,
 161                               modest_marshal_VOID__STRING_INT_INT,
 162                               G_TYPE_NONE, 3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
 163 }
 164
 165 static GtkTreeViewColumn*
 166 get_new_column (const gchar *name, GtkCellRenderer *renderer,
 167                 gboolean resizable, gint sort_col_id, gboolean show_as_text,
 168                 GtkTreeCellDataFunc cell_data_func, gpointer user_data)
 169 {
 170         GtkTreeViewColumn *column;
 171
 172         column =  gtk_tree_view_column_new_with_attributes(name, renderer, NULL);
 173         gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
 174
 175         gtk_tree_view_column_set_resizable (column, resizable);
 176         if (resizable)
 177                 gtk_tree_view_column_set_expand (column, TRUE);
 178
 179         if (show_as_text)
 180                 gtk_tree_view_column_add_attribute (column, renderer, "text",
 181                                                     sort_col_id);
 182         if (sort_col_id >= 0)
 183                 gtk_tree_view_column_set_sort_column_id (column, sort_col_id);
 184
 185         gtk_tree_view_column_set_sort_indicator (column, FALSE);
 186         gtk_tree_view_column_set_reorderable (column, TRUE);
 187
 188         if (cell_data_func)
 189                 gtk_tree_view_column_set_cell_data_func(column, renderer, cell_data_func,
 190                                                         user_data, NULL);
 191         return column;
 192 }
 193
 194
 195
 196
 197 static void
 198 remove_all_columns (ModestHeaderView *obj)
 199 {
 200         GList *columns, *cursor;
 201
 202         columns = gtk_tree_view_get_columns (GTK_TREE_VIEW(obj));
 203
 204         for (cursor = columns; cursor; cursor = cursor->next)
 205                 gtk_tree_view_remove_column (GTK_TREE_VIEW(obj),
 206                                              GTK_TREE_VIEW_COLUMN(cursor->data));
 207         g_list_free (columns);
 208 }
 209
 210 gboolean
 211 modest_header_view_set_columns (ModestHeaderView *self, const GList *columns)
 212 {
 213         GtkTreeModel *sortable;
 214         GtkTreeViewColumn *column=NULL;
 215         GtkCellRenderer *renderer_msgtype,*renderer_header,
 216                 *renderer_attach;
 217         ModestHeaderViewPrivate *priv;
 218         const GList *cursor;
 219
 220         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 221
 222         /* FIXME: check whether these renderers need to be freed */
 223         renderer_msgtype = gtk_cell_renderer_pixbuf_new ();
 224         renderer_attach  = gtk_cell_renderer_pixbuf_new ();
 225         renderer_header  = gtk_cell_renderer_text_new ();
 226
 227         remove_all_columns (self);
 228
 229         sortable = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 230
 231         /* Add new columns */
 232         for (cursor = columns; cursor; cursor = g_list_next(cursor)) {
 233                 ModestHeaderViewColumn col =
 234                         (ModestHeaderViewColumn) GPOINTER_TO_INT(cursor->data);
 235
 236                 if (0> col || col >= MODEST_HEADER_VIEW_COLUMN_NUM) {
 237                         g_printerr ("modest: invalid column %d in column list\n", col);
 238                         continue;
 239                 }
 240
 241                 switch (col) {
 242
 243                 case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
 244                         column = get_new_column (_("M"), renderer_msgtype, FALSE,
 245                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 246                                                  FALSE,
 247                                                  (GtkTreeCellDataFunc)_modest_header_view_msgtype_cell_data,
 248                                                  NULL);
 249                         gtk_tree_view_column_set_fixed_width (column, 45);
 250                         break;
 251
 252                 case MODEST_HEADER_VIEW_COLUMN_ATTACH:
 253                         column = get_new_column (_("A"), renderer_attach, FALSE,
 254                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 255                                                  FALSE,
 256                                                  (GtkTreeCellDataFunc)_modest_header_view_attach_cell_data,
 257                                                  NULL);
 258                         gtk_tree_view_column_set_fixed_width (column, 45);
 259                         break;
 260
 261
 262                 case MODEST_HEADER_VIEW_COLUMN_FROM:
 263                         column = get_new_column (_("From"), renderer_header, TRUE,
 264                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 265                                                  TRUE,
 266                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 267                                                  GINT_TO_POINTER(TRUE));
 268                         break;
 269
 270                 case MODEST_HEADER_VIEW_COLUMN_TO:
 271                         column = get_new_column (_("To"), renderer_header, TRUE,
 272                                                  TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN,
 273                                                  TRUE,
 274                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 275                                                  GINT_TO_POINTER(FALSE));
 276                         break;
 277
 278                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 279                         column = get_new_column (_("Header"), renderer_header, TRUE,
 280                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 281                                                  TRUE,
 282                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 283                                                  GINT_TO_POINTER(TRUE));
 284                         break;
 285
 286                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
 287                         column = get_new_column (_("Header"), renderer_header, TRUE,
 288                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 289                                                  TRUE,
 290                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 291                                                  GINT_TO_POINTER(FALSE));
 292                         break;
 293
 294
 295                 case MODEST_HEADER_VIEW_COLUMN_SUBJECT:
 296                         column = get_new_column (_("Subject"), renderer_header, TRUE,
 297                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 298                                                  TRUE,
 299                                                  (GtkTreeCellDataFunc)_modest_header_view_header_cell_data,
 300                                                  NULL);
 301                         break;
 302
 303                 case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
 304                         column = get_new_column (_("Received"), renderer_header, TRUE,
 305                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 306                                                  TRUE,
 307                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 308                                                  GINT_TO_POINTER(TRUE));
 309                         break;
 310
 311                 case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
 312                         column = get_new_column (_("Sent"), renderer_header, TRUE,
 313                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 314                                                  TRUE,
 315                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 316                                                  GINT_TO_POINTER(FALSE));
 317                         break;
 318
 319                 case MODEST_HEADER_VIEW_COLUMN_SIZE:
 320                         column = get_new_column (_("Size"), renderer_header, TRUE,
 321                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 322                                                  FALSE,
 323                                                  (GtkTreeCellDataFunc)_modest_header_view_size_cell_data,
 324                                                  NULL);
 325                         break;
 326
 327                 default:
 328                         g_return_val_if_reached(FALSE);
 329                 }
 330
 331                 if (sortable)
 332                         gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 333                                                          col, (GtkTreeIterCompareFunc)cmp_rows,
 334                                                          column, NULL);
 335
 336                 /* we keep the column id around */
 337                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_COLUMN,
 338                                    GINT_TO_POINTER(col));
 339
 340                 /* we need this ptr when sorting the rows */
 341                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_PTR,
 342                                    self);
 343                 gtk_tree_view_append_column (GTK_TREE_VIEW(self), column);
 344         }
 345
 346         return TRUE;
 347 }
 348
 349 static void
 350 modest_header_view_init (ModestHeaderView *obj)
 351 {
 352         ModestHeaderViewPrivate *priv;
 353
 354         priv = MODEST_HEADER_VIEW_GET_PRIVATE(obj);
 355
 356         priv->folder  = NULL;
 357         priv->headers = NULL;
 358
 359         setup_drag_and_drop (GTK_TREE_VIEW (obj));
 360 }
 361
 362 static void
 363 modest_header_view_finalize (GObject *obj)
 364 {
 365         ModestHeaderView        *self;
 366         ModestHeaderViewPrivate *priv;
 367
 368         self = MODEST_HEADER_VIEW(obj);
 369         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 370
 371         if (priv->headers) {
 372                 g_object_unref (G_OBJECT(priv->headers));
 373                 priv->headers  = NULL;
 374         }
 375
 376         if (priv->folder) {
 377                 g_object_unref (G_OBJECT (priv->folder));
 378                 priv->folder   = NULL;
 379         }
 380
 381         G_OBJECT_CLASS(parent_class)->finalize (obj);
 382 }
 383
 384
 385 GtkWidget*
 386 modest_header_view_new (TnyFolder *folder, ModestHeaderViewStyle style)
 387 {
 388         GObject *obj;
 389         GtkTreeSelection *sel;
 390         ModestHeaderView *self;
 391         ModestHeaderViewPrivate *priv;
 392
 393         g_return_val_if_fail (style >= 0 && style < MODEST_HEADER_VIEW_STYLE_NUM,
 394                               NULL);
 395
 396         obj  = G_OBJECT(g_object_new(MODEST_TYPE_HEADER_VIEW, NULL));
 397         self = MODEST_HEADER_VIEW(obj);
 398         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 399
 400         modest_header_view_set_style   (self, style);
 401         modest_header_view_set_folder (self, NULL);
 402
 403         gtk_tree_view_columns_autosize (GTK_TREE_VIEW(obj));
 404         gtk_tree_view_set_fixed_height_mode (GTK_TREE_VIEW(obj),TRUE);
 405         gtk_tree_view_set_enable_search (GTK_TREE_VIEW(obj), TRUE);
 406
 407         gtk_tree_view_set_rules_hint (GTK_TREE_VIEW(obj),
 408                                       TRUE); /* alternating row colors */
 409         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 410
 411         g_signal_connect (sel, "changed",
 412                           G_CALLBACK(on_selection_changed), self);
 413
 414         g_signal_connect (self, "button-press-event",
 415                           G_CALLBACK(on_header_clicked), NULL);
 416
 417         return GTK_WIDGET(self);
 418 }
 419
 420
 421 TnyList *
 422 modest_header_view_get_selected_headers (ModestHeaderView *self)
 423 {
 424         GtkTreeSelection *sel;
 425         ModestHeaderViewPrivate *priv;
 426         TnyList *header_list = NULL;
 427         TnyHeader *header;
 428         GList *list, *tmp = NULL;
 429         GtkTreeModel *tree_model = NULL;
 430         GtkTreeIter iter;
 431
 432         g_return_val_if_fail (self, NULL);
 433
 434         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 435
 436         /* Get selected rows */
 437         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 438         list = gtk_tree_selection_get_selected_rows (sel, &tree_model);
 439
 440         if (list) {
 441                 header_list = tny_simple_list_new();
 442
 443                 list = g_list_reverse (list);
 444                 tmp = list;
 445                 while (tmp) {
 446                         /* get header from selection */
 447                         gtk_tree_model_get_iter (tree_model, &iter, (GtkTreePath *) (tmp->data));
 448                         gtk_tree_model_get (tree_model, &iter,
 449                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 450                                             &header, -1);
 451                         /* Prepend to list */
 452                         tny_list_prepend (header_list, G_OBJECT (header));
 453                         g_object_unref (G_OBJECT (header));
 454
 455                         tmp = g_list_next (tmp);
 456                 }
 457                 /* Clean up*/
 458                 g_list_foreach (list, (GFunc) gtk_tree_path_free, NULL);
 459                 g_list_free (list);
 460         }
 461         return header_list;
 462 }
 463
 464
 465 /* scroll our list view so the selected item is visible */
 466 static void
 467 scroll_to_selected (ModestHeaderView *self, GtkTreeIter *iter, gboolean up)
 468 {
 469 #if MODEST_PLATFORM_ID==1  /* MODES_PLATFORM_ID: 1 ==> gtk, 2==> maemo */
 470
 471         GtkTreePath *selected_path;
 472         GtkTreePath *start, *end;
 473
 474         GtkTreeModel *model;
 475
 476         model         = gtk_tree_view_get_model (GTK_TREE_VIEW(self));
 477         selected_path = gtk_tree_model_get_path (model, iter);
 478
 479         start = gtk_tree_path_new ();
 480         end   = gtk_tree_path_new ();
 481
 482         gtk_tree_view_get_visible_range (GTK_TREE_VIEW(self), &start, &end);
 483
 484         if (gtk_tree_path_compare (selected_path, start) < 0 ||
 485             gtk_tree_path_compare (end, selected_path) < 0)
 486                 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW(self),
 487                                               selected_path, NULL, TRUE,
 488                                               up ? 0.0 : 1.0,
 489                                               up ? 0.0 : 1.0);
 490         gtk_tree_path_free (selected_path);
 491         gtk_tree_path_free (start);
 492         gtk_tree_path_free (end);
 493
 494 #endif /* MODEST_PLATFORM_ID */
 495 }
 496
 497
 498 void
 499 modest_header_view_select_next (ModestHeaderView *self)
 500 {
 501         GtkTreeSelection *sel;
 502         GtkTreeIter iter;
 503         GtkTreeModel *model;
 504
 505         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 506         if (gtk_tree_selection_get_selected (sel, &model, &iter)) {
 507                 if (gtk_tree_model_iter_next (model, &iter)) {
 508                         gtk_tree_selection_select_iter (sel, &iter);
 509                         scroll_to_selected (self, &iter, FALSE);
 510                 }
 511         }
 512 }
 513
 514 void
 515 modest_header_view_select_prev (ModestHeaderView *self)
 516 {
 517         GtkTreeSelection *sel;
 518         GtkTreeIter iter;
 519         GtkTreeModel *model;
 520         GtkTreePath *path;
 521
 522         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 523         if (gtk_tree_selection_get_selected (sel, &model, &iter)) {
 524                 path = gtk_tree_model_get_path (model, &iter);
 525
 526                 /* Move path up */
 527                 if (gtk_tree_path_prev (path)) {
 528                         gtk_tree_model_get_iter (model, &iter, path);
 529
 530                         /* Select the new one */
 531                         gtk_tree_selection_select_iter (sel, &iter);
 532                         scroll_to_selected (self, &iter, TRUE);
 533
 534                 }
 535                 gtk_tree_path_free (path);
 536         }
 537 }
 538
 539 GList*
 540 modest_header_view_get_columns (ModestHeaderView *self)
 541 {
 542         g_return_val_if_fail (self, FALSE);
 543         return gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 544 }
 545
 546 gboolean
 547 modest_header_view_is_empty (ModestHeaderView *self)
 548 {
 549         g_return_val_if_fail (self, FALSE);
 550         return FALSE; /* FIXME */
 551 }
 552
 553
 554 gboolean
 555 modest_header_view_set_style (ModestHeaderView *self,
 556                               ModestHeaderViewStyle style)
 557 {
 558         ModestHeaderViewPrivate *priv;
 559         gboolean show_col_headers = FALSE;
 560         ModestHeaderViewStyle old_style;
 561
 562         g_return_val_if_fail (self, FALSE);
 563         g_return_val_if_fail (style >= 0 && MODEST_HEADER_VIEW_STYLE_NUM,
 564                               FALSE);
 565
 566         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 567         if (priv->style == style)
 568                 return TRUE; /* nothing to do */
 569
 570         switch (style) {
 571         case MODEST_HEADER_VIEW_STYLE_DETAILS:
 572                 show_col_headers = TRUE;
 573                 break;
 574         case MODEST_HEADER_VIEW_STYLE_TWOLINES:
 575                 break;
 576         default:
 577                 g_return_val_if_reached (FALSE);
 578         }
 579         gtk_tree_view_set_headers_visible   (GTK_TREE_VIEW(self), show_col_headers);
 580         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(self), show_col_headers);
 581
 582         old_style   = priv->style;
 583         priv->style = style;
 584
 585         return TRUE;
 586 }
 587
 588
 589 ModestHeaderViewStyle
 590 modest_header_view_get_style (ModestHeaderView *self)
 591 {
 592         g_return_val_if_fail (self, FALSE);
 593         return MODEST_HEADER_VIEW_GET_PRIVATE(self)->style;
 594 }
 595
 596
 597 static void
 598 on_refresh_folder (TnyFolder   *folder,
 599                    gboolean     cancelled,
 600                    GError     **error,
 601                    gpointer     user_data)
 602 {
 603         GtkTreeModel *sortable;
 604         ModestHeaderView *self;
 605         ModestHeaderViewPrivate *priv;
 606         GList *cols, *cursor;
 607
 608         if (cancelled) {
 609                 GtkTreeSelection *selection;
 610
 611                 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (user_data));
 612                 gtk_tree_selection_unselect_all (selection);
 613                 return;
 614         }
 615
 616         self = MODEST_HEADER_VIEW(user_data);
 617         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 618
 619         if (priv->headers) {
 620                 g_object_unref (priv->headers);
 621                 modest_runtime_verify_object_death(priv->headers,"");
 622         }
 623
 624         priv->headers = TNY_LIST(tny_gtk_header_list_model_new ());
 625
 626         tny_gtk_header_list_model_set_folder (TNY_GTK_HEADER_LIST_MODEL(priv->headers),
 627                                               folder, TRUE);
 628
 629         sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(priv->headers));
 630
 631         /* install our special sorting functions */
 632         cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 633         while (cursor) {
 634                 gint col_id = GPOINTER_TO_INT (g_object_get_data(G_OBJECT(cursor->data),
 635                                                                  MODEST_HEADER_VIEW_COLUMN));
 636                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 637                                                  col_id,
 638                                                  (GtkTreeIterCompareFunc)cmp_rows,
 639                                                  cursor->data, NULL);
 640                 cursor = g_list_next(cursor);
 641         }
 642         g_list_free (cols);
 643
 644         /* Set new model */
 645         gtk_tree_view_set_model (GTK_TREE_VIEW (self), sortable);
 646         g_object_unref (G_OBJECT (sortable));
 647 }
 648
 649
 650 static void
 651 on_refresh_folder_status_update (TnyFolder *folder, const gchar *msg,
 652                                  gint num, gint total,  gpointer user_data)
 653 {
 654         ModestHeaderView *self;
 655         ModestHeaderViewPrivate *priv;
 656
 657         self = MODEST_HEADER_VIEW(user_data);
 658         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 659
 660         /* FIXME: this is a hack ==> tinymail gives us this when
 661          * it has nothing better to do */
 662         if (num == 1 && total == 100)
 663                 return;
 664
 665         g_signal_emit (G_OBJECT(self), signals[STATUS_UPDATE_SIGNAL],
 666                        0, msg, num, total);
 667 }
 668
 669
 670 TnyFolder*
 671 modest_header_view_get_folder (ModestHeaderView *self)
 672 {
 673         ModestHeaderViewPrivate *priv;
 674         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 675
 676         if (priv->folder)
 677                 g_object_ref (priv->folder);
 678
 679         return priv->folder;
 680 }
 681
 682
 683 void
 684 modest_header_view_set_folder (ModestHeaderView *self, TnyFolder *folder)
 685 {
 686         ModestHeaderViewPrivate *priv;
 687         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 688
 689         /* Unset the old one */
 690         if (priv->folder)
 691                 g_object_unref (priv->folder);
 692
 693         priv->folder = folder;
 694
 695         if (folder) {
 696                 g_object_ref (priv->folder);
 697
 698                 tny_folder_refresh_async (folder,
 699                                           on_refresh_folder,
 700                                           on_refresh_folder_status_update,
 701                                           self);
 702
 703                 /* no message selected */
 704                 g_signal_emit (G_OBJECT(self), signals[HEADER_SELECTED_SIGNAL], 0,
 705                                NULL);
 706         } else {
 707                 gtk_tree_view_set_model (GTK_TREE_VIEW (self), NULL);
 708 /*              gtk_widget_show (GTK_WIDGET (self)); */
 709         }
 710 }
 711
 712 static gboolean
 713 on_header_clicked (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
 714 {
 715         ModestHeaderView *self;
 716         ModestHeaderViewPrivate *priv;
 717         GtkTreeIter iter;
 718         GtkTreeSelection *sel;
 719         GtkTreeModel *model;
 720         TnyHeader *header;
 721
 722         /* ignore everything but doubleclick */
 723         if (event->type != GDK_2BUTTON_PRESS)
 724                 return FALSE;
 725
 726         self = MODEST_HEADER_VIEW (widget);
 727         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 728
 729         sel   = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 730         model = gtk_tree_view_get_model (GTK_TREE_VIEW(self));
 731
 732         if (!gtk_tree_selection_get_selected (sel, &model, &iter))
 733                 return FALSE; /* msg was _un_selected */
 734
 735         /* get the first selected item */
 736         gtk_tree_model_get (model, &iter,
 737                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 738                             &header, -1);
 739         /* Emit signal */
 740         g_signal_emit (G_OBJECT(self),
 741                        signals[HEADER_ACTIVATED_SIGNAL],
 742                        0, header);
 743
 744         /* Free */
 745         g_object_unref (G_OBJECT (header));
 746
 747         return TRUE;
 748 }
 749
 750
 751 static void
 752 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
 753 {
 754         GtkTreeModel *model;
 755         TnyHeader *header;
 756         GtkTreeIter iter;
 757         ModestHeaderView *self;
 758         ModestHeaderViewPrivate *priv;
 759
 760         g_return_if_fail (sel);
 761         g_return_if_fail (user_data);
 762
 763         self = MODEST_HEADER_VIEW (user_data);
 764         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 765
 766         if (!gtk_tree_selection_get_selected (sel, &model, &iter))
 767                 return; /* msg was _un_selected */
 768
 769         gtk_tree_model_get (model, &iter,
 770                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 771                             &header, -1);
 772
 773         /* Emit signal */
 774         g_signal_emit (G_OBJECT(self),
 775                        signals[HEADER_SELECTED_SIGNAL],
 776                        0, header);
 777 }
 778
 779
 780 /* PROTECTED method. It's useful when we want to force a given
 781    selection to reload a msg. For example if we have selected a header
 782    in offline mode, when Modest become online, we want to reload the
 783    message automatically without an user click over the header */
 784 void
 785 _modest_header_view_change_selection (GtkTreeSelection *selection,
 786                                       gpointer user_data)
 787 {
 788         g_return_if_fail (GTK_IS_TREE_SELECTION (selection));
 789         g_return_if_fail (MODEST_IS_HEADER_VIEW (user_data));
 790
 791         on_selection_changed (selection, user_data);
 792 }
 793
 794
 795 static gint
 796 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
 797           gpointer user_data)
 798 {
 799         gint col_id;
 800         gint t1, t2;
 801         gint val1, val2;
 802         gchar *s1, *s2;
 803         gint cmp;
 804
 805         static int counter = 0;
 806         col_id = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(user_data), MODEST_HEADER_VIEW_COLUMN));
 807
 808         if (!(++counter % 100)) {
 809                 GObject *header_view = g_object_get_data(G_OBJECT(user_data),
 810                                                          MODEST_HEADER_VIEW_PTR);
 811                 g_signal_emit (header_view,
 812                                signals[STATUS_UPDATE_SIGNAL],
 813                                0, _("Sorting..."), 0, 0);
 814         }
 815         switch (col_id) {
 816
 817                 /* first one, we decide based on the time */
 818         case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 819         case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
 820
 821                 gtk_tree_model_get (tree_model, iter1,
 822                                     TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 823                                     &t1,-1);
 824                 gtk_tree_model_get (tree_model, iter2,
 825                                     TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 826                                     &t2,-1);
 827                 return t1 - t2;
 828
 829         case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
 830         case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
 831                 gtk_tree_model_get (tree_model, iter1,
 832                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 833                                     &t1,-1);
 834                 gtk_tree_model_get (tree_model, iter2,
 835                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 836                                     &t2,-1);
 837                 return t1 - t2;
 838
 839
 840                 /* next ones, we try the search criteria first, if they're the same, then we use 'sent date' */
 841                 /* FIXME: what about received-date? */
 842         case MODEST_HEADER_VIEW_COLUMN_SUBJECT: {
 843
 844                 gtk_tree_model_get (tree_model, iter1,
 845                                     TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &s1,
 846                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
 847                                     -1);
 848                 gtk_tree_model_get (tree_model, iter2,
 849                                     TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &s2,
 850                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
 851                                     -1);
 852
 853                 /* the prefix ('Re:', 'Fwd:' etc.) we ignore */
 854                 cmp = modest_text_utils_utf8_strcmp (s1 + modest_text_utils_get_subject_prefix_len(s1),
 855                                                      s2 + modest_text_utils_get_subject_prefix_len(s2),
 856                                                      TRUE);
 857                 g_free (s1);
 858                 g_free (s2);
 859
 860                 return cmp ? cmp : t1 - t2;
 861         }
 862
 863         case MODEST_HEADER_VIEW_COLUMN_FROM:
 864
 865                 gtk_tree_model_get (tree_model, iter1,
 866                                     TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN, &s1,
 867                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
 868                                     -1);
 869                 gtk_tree_model_get (tree_model, iter2,
 870                                     TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN, &s2,
 871                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
 872                                     -1);
 873                 cmp = modest_text_utils_utf8_strcmp (s1, s2, TRUE);
 874                 g_free (s1);
 875                 g_free (s2);
 876
 877                 return cmp ? cmp : t1 - t2;
 878
 879         case MODEST_HEADER_VIEW_COLUMN_TO:
 880
 881                 gtk_tree_model_get (tree_model, iter1,
 882                                     TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN, &s1,
 883                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
 884                                     -1);
 885                 gtk_tree_model_get (tree_model, iter2,
 886                                     TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN, &s2,
 887                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
 888                                     -1);
 889                 cmp = modest_text_utils_utf8_strcmp (s1, s2, TRUE);
 890                 g_free (s1);
 891                 g_free (s2);
 892
 893                 return cmp ? cmp : t1 - t2;
 894
 895         case MODEST_HEADER_VIEW_COLUMN_ATTACH:
 896
 897                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
 898                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1, -1);
 899                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
 900                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2, -1);
 901
 902                 cmp = (val1 & TNY_HEADER_FLAG_ATTACHMENTS) -
 903                         (val2 & TNY_HEADER_FLAG_ATTACHMENTS);
 904
 905                 return cmp ? cmp : t1 - t2;
 906
 907         case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
 908                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
 909                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,-1);
 910                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
 911                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,-1);
 912                 cmp =  (val1 & TNY_HEADER_FLAG_SEEN) - (val2 & TNY_HEADER_FLAG_SEEN);
 913
 914                 return cmp ? cmp : t1 - t2;
 915
 916         default:
 917                 return &iter1 - &iter2; /* oughhhh  */
 918         }
 919 }
 920
 921 static void
 922 drag_data_get_cb (GtkWidget *widget,
 923                   GdkDragContext *context,
 924                   GtkSelectionData *selection_data,
 925                   guint info,
 926                   guint time,
 927                   gpointer data)
 928 {
 929         GtkTreeSelection *selection;
 930         GtkTreeModel *model;
 931         GtkTreeIter iter;
 932         GtkTreePath *source_row;
 933
 934         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (widget));
 935         gtk_tree_selection_get_selected (selection, &model, &iter);
 936         source_row = gtk_tree_model_get_path (model, &iter);
 937
 938         gtk_tree_set_row_drag_data (selection_data,
 939                                     model,
 940                                     source_row);
 941
 942         gtk_tree_path_free (source_row);
 943 }
 944
 945 static void
 946 drag_data_delete_cb (GtkWidget      *widget,
 947                      GdkDragContext *context,
 948                      gpointer        user_data)
 949 {
 950         GtkTreeIter iter;
 951         GtkTreePath *source_row;
 952         GtkTreeModel *model_sort, *model;
 953         TnyHeader *header;
 954
 955         model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));
 956         model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
 957         source_row = g_object_steal_data (G_OBJECT (widget), ROW_REF_DATA_NAME);
 958
 959         /* Delete the source row */
 960         gtk_tree_model_get_iter (model, &iter, source_row);
 961         gtk_tree_model_get (model, &iter,
 962                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN, &header,
 963                             -1);
 964         tny_list_remove (TNY_LIST (model), G_OBJECT (header));
 965         g_object_unref (G_OBJECT (header));
 966
 967         gtk_tree_path_free (source_row);
 968 }
 969
 970 /* Header view drag types */
 971 const GtkTargetEntry header_view_drag_types[] =
 972 {
 973         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP, HEADER_ROW }
 974 };
 975
 976 static void
 977 setup_drag_and_drop (GtkTreeView *self)
 978 {
 979         gtk_drag_source_set (GTK_WIDGET (self),
 980                              GDK_BUTTON1_MASK,
 981                              header_view_drag_types,
 982                              G_N_ELEMENTS (header_view_drag_types),
 983                              GDK_ACTION_MOVE | GDK_ACTION_COPY);
 984
 985         gtk_signal_connect(GTK_OBJECT (self),
 986                            "drag_data_get",
 987                            GTK_SIGNAL_FUNC(drag_data_get_cb),
 988                            NULL);
 989
 990         gtk_signal_connect(GTK_OBJECT (self),
 991                            "drag_data_delete",
 992                            GTK_SIGNAL_FUNC(drag_data_delete_cb),
 993                            NULL);
 994 }