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
  38 #include <modest-marshal.h>
  39 #include <modest-text-utils.h>
  40 #include <modest-icon-names.h>
  41 #include <modest-runtime.h>
  42
  43 static void modest_header_view_class_init  (ModestHeaderViewClass *klass);
  44 static void modest_header_view_init        (ModestHeaderView *obj);
  45 static void modest_header_view_finalize    (GObject *obj);
  46
  47 static gboolean     on_header_clicked      (GtkWidget *widget,
  48                                             GdkEventButton *event,
  49                                             gpointer user_data);
  50
  51 static void         on_selection_changed   (GtkTreeSelection *sel,
  52                                             gpointer user_data);
  53
  54 static gint         cmp_rows               (GtkTreeModel *tree_model,
  55                                             GtkTreeIter *iter1,
  56                                             GtkTreeIter *iter2,
  57                                             gpointer user_data);
  58
  59 static void         setup_drag_and_drop    (GtkTreeView *self);
  60
  61 typedef struct _ModestHeaderViewPrivate ModestHeaderViewPrivate;
  62 struct _ModestHeaderViewPrivate {
  63         TnyFolder            *folder;
  64         TnyList              *headers;
  65         GMutex               *lock;
  66         ModestHeaderViewStyle style;
  67 };
  68
  69 #define MODEST_HEADER_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
  70                                                 MODEST_TYPE_HEADER_VIEW, \
  71                                                 ModestHeaderViewPrivate))
  72
  73
  74
  75 #define MODEST_HEADER_VIEW_PTR "modest-header-view"
  76
  77 enum {
  78         HEADER_SELECTED_SIGNAL,
  79         HEADER_ACTIVATED_SIGNAL,
  80         ITEM_NOT_FOUND_SIGNAL,
  81         STATUS_UPDATE_SIGNAL,
  82         LAST_SIGNAL
  83 };
  84
  85 /* globals */
  86 static GObjectClass *parent_class = NULL;
  87
  88 /* uncomment the following if you have defined any signals */
  89 static guint signals[LAST_SIGNAL] = {0};
  90
  91 GType
  92 modest_header_view_get_type (void)
  93 {
  94         static GType my_type = 0;
  95         if (!my_type) {
  96                 static const GTypeInfo my_info = {
  97                         sizeof(ModestHeaderViewClass),
  98                         NULL,           /* base init */
  99                         NULL,           /* base finalize */
 100                         (GClassInitFunc) modest_header_view_class_init,
 101                         NULL,           /* class finalize */
 102                         NULL,           /* class data */
 103                         sizeof(ModestHeaderView),
 104                         1,              /* n_preallocs */
 105                         (GInstanceInitFunc) modest_header_view_init,
 106                         NULL
 107                 };
 108                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
 109                                                   "ModestHeaderView",
 110                                                   &my_info, 0);
 111         }
 112         return my_type;
 113 }
 114
 115 static void
 116 modest_header_view_class_init (ModestHeaderViewClass *klass)
 117 {
 118         GObjectClass *gobject_class;
 119         gobject_class = (GObjectClass*) klass;
 120
 121         parent_class            = g_type_class_peek_parent (klass);
 122         gobject_class->finalize = modest_header_view_finalize;
 123
 124         g_type_class_add_private (gobject_class, sizeof(ModestHeaderViewPrivate));
 125
 126         signals[HEADER_SELECTED_SIGNAL] =
 127                 g_signal_new ("header_selected",
 128                               G_TYPE_FROM_CLASS (gobject_class),
 129                               G_SIGNAL_RUN_FIRST,
 130                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_selected),
 131                               NULL, NULL,
 132                               g_cclosure_marshal_VOID__POINTER,
 133                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 134
 135         signals[HEADER_ACTIVATED_SIGNAL] =
 136                 g_signal_new ("header_activated",
 137                               G_TYPE_FROM_CLASS (gobject_class),
 138                               G_SIGNAL_RUN_FIRST,
 139                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_activated),
 140                               NULL, NULL,
 141                               g_cclosure_marshal_VOID__POINTER,
 142                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 143
 144
 145         signals[ITEM_NOT_FOUND_SIGNAL] =
 146                 g_signal_new ("item_not_found",
 147                               G_TYPE_FROM_CLASS (gobject_class),
 148                               G_SIGNAL_RUN_FIRST,
 149                               G_STRUCT_OFFSET (ModestHeaderViewClass,item_not_found),
 150                               NULL, NULL,
 151                               g_cclosure_marshal_VOID__INT,
 152                               G_TYPE_NONE, 1, G_TYPE_INT);
 153
 154         signals[STATUS_UPDATE_SIGNAL] =
 155                 g_signal_new ("status_update",
 156                               G_TYPE_FROM_CLASS (gobject_class),
 157                               G_SIGNAL_RUN_FIRST,
 158                               G_STRUCT_OFFSET (ModestHeaderViewClass,status_update),
 159                               NULL, NULL,
 160                               modest_marshal_VOID__STRING_INT_INT,
 161                               G_TYPE_NONE, 3, G_TYPE_STRING, G_TYPE_INT, G_TYPE_INT);
 162 }
 163
 164 static GtkTreeViewColumn*
 165 get_new_column (const gchar *name, GtkCellRenderer *renderer,
 166                 gboolean resizable, gint sort_col_id, gboolean show_as_text,
 167                 GtkTreeCellDataFunc cell_data_func, gpointer user_data)
 168 {
 169         GtkTreeViewColumn *column;
 170
 171         column =  gtk_tree_view_column_new_with_attributes(name, renderer, NULL);
 172         gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
 173
 174         gtk_tree_view_column_set_resizable (column, resizable);
 175         if (resizable)
 176                 gtk_tree_view_column_set_expand (column, TRUE);
 177
 178         if (show_as_text)
 179                 gtk_tree_view_column_add_attribute (column, renderer, "text",
 180                                                     sort_col_id);
 181         if (sort_col_id >= 0)
 182                 gtk_tree_view_column_set_sort_column_id (column, sort_col_id);
 183
 184         gtk_tree_view_column_set_sort_indicator (column, FALSE);
 185         gtk_tree_view_column_set_reorderable (column, TRUE);
 186
 187         if (cell_data_func)
 188                 gtk_tree_view_column_set_cell_data_func(column, renderer, cell_data_func,
 189                                                         user_data, NULL);
 190         return column;
 191 }
 192
 193
 194
 195
 196 static void
 197 remove_all_columns (ModestHeaderView *obj)
 198 {
 199         GList *columns, *cursor;
 200
 201         columns = gtk_tree_view_get_columns (GTK_TREE_VIEW(obj));
 202
 203         for (cursor = columns; cursor; cursor = cursor->next)
 204                 gtk_tree_view_remove_column (GTK_TREE_VIEW(obj),
 205                                              GTK_TREE_VIEW_COLUMN(cursor->data));
 206         g_list_free (columns);
 207 }
 208
 209
 210
 211 gboolean
 212 modest_header_view_set_columns (ModestHeaderView *self, const GList *columns)
 213 {
 214         GtkTreeModel *sortable;
 215         GtkTreeViewColumn *column=NULL;
 216         GtkCellRenderer *renderer_msgtype,*renderer_header,
 217                 *renderer_attach;
 218         ModestHeaderViewPrivate *priv;
 219         const GList *cursor;
 220
 221         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 222
 223         /* FIXME: check whether these renderers need to be freed */
 224         renderer_msgtype = gtk_cell_renderer_pixbuf_new ();
 225         renderer_attach  = gtk_cell_renderer_pixbuf_new ();
 226         renderer_header  = gtk_cell_renderer_text_new ();
 227
 228         remove_all_columns (self);
 229
 230         if (priv->headers)
 231                 sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(priv->headers));
 232         else
 233                 sortable = NULL;
 234
 235         for (cursor = columns; cursor; cursor = g_list_next(cursor)) {
 236                 ModestHeaderViewColumn col =
 237                         (ModestHeaderViewColumn) GPOINTER_TO_INT(cursor->data);
 238
 239                 if (0> col || col >= MODEST_HEADER_VIEW_COLUMN_NUM) {
 240                         g_printerr ("modest: invalid column %d in column list\n", col);
 241                         continue;
 242                 }
 243
 244                 switch (col) {
 245
 246                 case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
 247                         column = get_new_column (_("M"), renderer_msgtype, FALSE,
 248                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 249                                                  FALSE,
 250                                                  (GtkTreeCellDataFunc)_modest_header_view_msgtype_cell_data,
 251                                                  NULL);
 252                         gtk_tree_view_column_set_fixed_width (column, 45);
 253                         break;
 254
 255                 case MODEST_HEADER_VIEW_COLUMN_ATTACH:
 256                         column = get_new_column (_("A"), renderer_attach, FALSE,
 257                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 258                                                  FALSE,
 259                                                  (GtkTreeCellDataFunc)_modest_header_view_attach_cell_data,
 260                                                  NULL);
 261                         gtk_tree_view_column_set_fixed_width (column, 45);
 262                         break;
 263
 264
 265                 case MODEST_HEADER_VIEW_COLUMN_FROM:
 266                         column = get_new_column (_("From"), renderer_header, TRUE,
 267                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 268                                                  TRUE,
 269                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 270                                                  GINT_TO_POINTER(TRUE));
 271                         break;
 272
 273                 case MODEST_HEADER_VIEW_COLUMN_TO:
 274                         column = get_new_column (_("To"), renderer_header, TRUE,
 275                                                  TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN,
 276                                                  TRUE,
 277                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 278                                                  GINT_TO_POINTER(FALSE));
 279                         break;
 280
 281                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 282                         column = get_new_column (_("Header"), renderer_header, TRUE,
 283                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 284                                                  TRUE,
 285                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 286                                                  GINT_TO_POINTER(TRUE));
 287                         break;
 288
 289                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
 290                         column = get_new_column (_("Header"), renderer_header, TRUE,
 291                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 292                                                  TRUE,
 293                                                  (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 294                                                  GINT_TO_POINTER(FALSE));
 295                         break;
 296
 297
 298                 case MODEST_HEADER_VIEW_COLUMN_SUBJECT:
 299                         column = get_new_column (_("Subject"), renderer_header, TRUE,
 300                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 301                                                  TRUE,
 302                                                  (GtkTreeCellDataFunc)_modest_header_view_header_cell_data,
 303                                                  NULL);
 304                         break;
 305
 306                 case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
 307                         column = get_new_column (_("Received"), renderer_header, TRUE,
 308                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 309                                                  TRUE,
 310                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 311                                                  GINT_TO_POINTER(TRUE));
 312                         break;
 313
 314                 case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
 315                         column = get_new_column (_("Sent"), renderer_header, TRUE,
 316                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 317                                                  TRUE,
 318                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 319                                                  GINT_TO_POINTER(FALSE));
 320                         break;
 321
 322                 case MODEST_HEADER_VIEW_COLUMN_SIZE:
 323                         column = get_new_column (_("Size"), renderer_header, TRUE,
 324                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 325                                                  FALSE,
 326                                                  (GtkTreeCellDataFunc)_modest_header_view_size_cell_data,
 327                                                  NULL);
 328                         break;
 329
 330                 default:
 331                         g_return_val_if_reached(FALSE);
 332                 }
 333
 334                 if (sortable)
 335                         gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 336                                                          col, (GtkTreeIterCompareFunc)cmp_rows,
 337                                                          column, NULL);
 338
 339                 /* we keep the column id around */
 340                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_COLUMN,
 341                                    GINT_TO_POINTER(col));
 342
 343                 /* we need this ptr when sorting the rows */
 344                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_PTR,
 345                                    self);
 346                 gtk_tree_view_append_column (GTK_TREE_VIEW(self), column);
 347         }
 348         return TRUE;
 349 }
 350
 351 static void
 352 modest_header_view_init (ModestHeaderView *obj)
 353 {
 354         ModestHeaderViewPrivate *priv;
 355
 356         priv = MODEST_HEADER_VIEW_GET_PRIVATE(obj);
 357
 358         priv->lock    = g_mutex_new ();
 359         priv->folder  = NULL;
 360         priv->headers = NULL;
 361
 362         setup_drag_and_drop (GTK_TREE_VIEW (obj));
 363 }
 364
 365 static void
 366 modest_header_view_finalize (GObject *obj)
 367 {
 368         ModestHeaderView        *self;
 369         ModestHeaderViewPrivate *priv;
 370
 371         self = MODEST_HEADER_VIEW(obj);
 372         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 373
 374         if (priv->headers)
 375                 g_object_unref (G_OBJECT(priv->headers));
 376
 377         if (priv->lock) {
 378                 g_mutex_free (priv->lock);
 379                 priv->lock = NULL;
 380         }
 381
 382         priv->headers  = NULL;
 383         priv->folder   = NULL;
 384
 385         G_OBJECT_CLASS(parent_class)->finalize (obj);
 386 }
 387
 388
 389 GtkWidget*
 390 modest_header_view_new (TnyFolder *folder, ModestHeaderViewStyle style)
 391 {
 392         GObject *obj;
 393         GtkTreeSelection *sel;
 394         ModestHeaderView *self;
 395         ModestHeaderViewPrivate *priv;
 396
 397         g_return_val_if_fail (style >= 0 && style < MODEST_HEADER_VIEW_STYLE_NUM,
 398                               NULL);
 399
 400         obj  = G_OBJECT(g_object_new(MODEST_TYPE_HEADER_VIEW, NULL));
 401         self = MODEST_HEADER_VIEW(obj);
 402         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 403
 404         modest_header_view_set_style   (self, style);
 405         modest_header_view_set_folder (self, NULL);
 406
 407         gtk_tree_view_columns_autosize (GTK_TREE_VIEW(obj));
 408         gtk_tree_view_set_fixed_height_mode (GTK_TREE_VIEW(obj),TRUE);
 409         gtk_tree_view_set_enable_search (GTK_TREE_VIEW(obj), TRUE);
 410
 411         gtk_tree_view_set_rules_hint (GTK_TREE_VIEW(obj),
 412                                       TRUE); /* alternating row colors */
 413         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 414
 415         g_signal_connect (sel, "changed",
 416                           G_CALLBACK(on_selection_changed), self);
 417
 418         g_signal_connect (self, "button-press-event",
 419                           G_CALLBACK(on_header_clicked), NULL);
 420
 421         return GTK_WIDGET(self);
 422 }
 423
 424
 425 TnyList *
 426 modest_header_view_get_selected_headers (ModestHeaderView *self)
 427 {
 428         GtkTreeSelection *sel;
 429         ModestHeaderViewPrivate *priv;
 430         TnyList *header_list = NULL;
 431         TnyHeader *header;
 432         GList *list, *tmp = NULL;
 433         GtkTreeModel *tree_model = NULL;
 434         GtkTreeIter iter;
 435
 436         g_return_val_if_fail (self, NULL);
 437
 438         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 439
 440         /* Get selected rows */
 441         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 442         list = gtk_tree_selection_get_selected_rows (sel, &tree_model);
 443
 444         if (list) {
 445                 header_list = tny_simple_list_new();
 446
 447                 list = g_list_reverse (list);
 448                 tmp = list;
 449                 while (tmp) {
 450                         /* get header from selection */
 451                         gtk_tree_model_get_iter (tree_model, &iter, (GtkTreePath *) (tmp->data));
 452                         gtk_tree_model_get (tree_model, &iter,
 453                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 454                                             &header, -1);
 455                         /* Prepend to list */
 456                         tny_list_prepend (header_list, G_OBJECT (header));
 457                         tmp = g_list_next (tmp);
 458                 }
 459                 /* Clean up*/
 460                 g_list_foreach (list, (GFunc) gtk_tree_path_free, NULL);
 461                 g_list_free (list);
 462         }
 463         return header_list;
 464 }
 465
 466
 467 /* scroll our list view so the selected item is visible */
 468 static void
 469 scroll_to_selected (ModestHeaderView *self, GtkTreeIter *iter, gboolean up)
 470 {
 471 #if MODEST_PLATFORM_ID==1  /* MODES_PLATFORM_ID: 1 ==> gtk, 2==> maemo */
 472
 473         GtkTreePath *selected_path;
 474         GtkTreePath *start, *end;
 475
 476         GtkTreeModel *model;
 477
 478         model         = gtk_tree_view_get_model (GTK_TREE_VIEW(self));
 479         selected_path = gtk_tree_model_get_path (model, iter);
 480
 481         start = gtk_tree_path_new ();
 482         end   = gtk_tree_path_new ();
 483
 484         gtk_tree_view_get_visible_range (GTK_TREE_VIEW(self), &start, &end);
 485
 486         if (gtk_tree_path_compare (selected_path, start) < 0 ||
 487             gtk_tree_path_compare (end, selected_path) < 0)
 488                 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW(self),
 489                                               selected_path, NULL, TRUE,
 490                                               up ? 0.0 : 1.0,
 491                                               up ? 0.0 : 1.0);
 492         gtk_tree_path_free (selected_path);
 493         gtk_tree_path_free (start);
 494         gtk_tree_path_free (end);
 495
 496 #endif /* MODEST_PLATFORM_ID */
 497 }
 498
 499
 500 void
 501 modest_header_view_select_next (ModestHeaderView *self)
 502 {
 503         GtkTreeSelection *sel;
 504         GtkTreeIter iter;
 505         GtkTreeModel *model;
 506
 507         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 508         if (gtk_tree_selection_get_selected (sel, &model, &iter)) {
 509                 if (gtk_tree_model_iter_next (model, &iter)) {
 510                         gtk_tree_selection_select_iter (sel, &iter);
 511                         scroll_to_selected (self, &iter, FALSE);
 512                 }
 513         }
 514 }
 515
 516 void
 517 modest_header_view_select_prev (ModestHeaderView *self)
 518 {
 519         GtkTreeSelection *sel;
 520         GtkTreeIter iter;
 521         GtkTreeModel *model;
 522         GtkTreePath *path;
 523
 524         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 525         if (gtk_tree_selection_get_selected (sel, &model, &iter)) {
 526                 path = gtk_tree_model_get_path (model, &iter);
 527
 528                 /* Move path up */
 529                 if (gtk_tree_path_prev (path)) {
 530                         gtk_tree_model_get_iter (model, &iter, path);
 531
 532                         /* Select the new one */
 533                         gtk_tree_selection_select_iter (sel, &iter);
 534                         scroll_to_selected (self, &iter, TRUE);
 535
 536                 }
 537                 gtk_tree_path_free (path);
 538         }
 539 }
 540
 541 GList*
 542 modest_header_view_get_columns (ModestHeaderView *self)
 543 {
 544         g_return_val_if_fail (self, FALSE);
 545         return gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 546 }
 547
 548 gboolean
 549 modest_header_view_is_empty (ModestHeaderView *self)
 550 {
 551         g_return_val_if_fail (self, FALSE);
 552         return FALSE; /* FIXME */
 553 }
 554
 555
 556 gboolean
 557 modest_header_view_set_style (ModestHeaderView *self,
 558                               ModestHeaderViewStyle style)
 559 {
 560         ModestHeaderViewPrivate *priv;
 561         gboolean show_col_headers = FALSE;
 562         ModestHeaderViewStyle old_style;
 563
 564         g_return_val_if_fail (self, FALSE);
 565         g_return_val_if_fail (style >= 0 && MODEST_HEADER_VIEW_STYLE_NUM,
 566                               FALSE);
 567
 568         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 569         if (priv->style == style)
 570                 return TRUE; /* nothing to do */
 571
 572         switch (style) {
 573         case MODEST_HEADER_VIEW_STYLE_DETAILS:
 574                 show_col_headers = TRUE;
 575                 break;
 576         case MODEST_HEADER_VIEW_STYLE_TWOLINES:
 577                 break;
 578         default:
 579                 g_return_val_if_reached (FALSE);
 580         }
 581         gtk_tree_view_set_headers_visible   (GTK_TREE_VIEW(self), show_col_headers);
 582         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(self), show_col_headers);
 583
 584         old_style   = priv->style;
 585         priv->style = style;
 586
 587         return TRUE;
 588 }
 589
 590
 591 ModestHeaderViewStyle
 592 modest_header_view_get_style (ModestHeaderView *self)
 593 {
 594         g_return_val_if_fail (self, FALSE);
 595         return MODEST_HEADER_VIEW_GET_PRIVATE(self)->style;
 596 }
 597
 598
 599 static void
 600 on_refresh_folder (TnyFolder *folder, gboolean cancelled, GError **err,
 601                    gpointer user_data)
 602 {
 603         GtkTreeModel *sortable;
 604         ModestHeaderView *self;
 605         ModestHeaderViewPrivate *priv;
 606         GError *error = NULL;
 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         priv->folder = folder;
 620
 621         if (folder) { /* it's a new one or a refresh */
 622                 GList *cols, *cursor;
 623
 624                 if (priv->headers) {
 625                         g_object_unref (priv->headers);
 626                         modest_runtime_verify_object_death(priv->headers,"");
 627                 }
 628                 priv->headers = TNY_LIST(tny_gtk_header_list_model_new ());
 629                 tny_folder_get_headers (folder, priv->headers, FALSE, &error); /* FIXME */
 630                 if (error) {
 631                         g_signal_emit (G_OBJECT(self), signals[ITEM_NOT_FOUND_SIGNAL],
 632                                        0, MODEST_ITEM_TYPE_MESSAGE);
 633                         g_print (error->message);
 634                         g_error_free (error);
 635                         return;
 636                 }
 637
 638                 tny_gtk_header_list_model_set_folder
 639                         (TNY_GTK_HEADER_LIST_MODEL(priv->headers),folder, TRUE); /*async*/
 640
 641                 sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(priv->headers));
 642
 643                 /* install our special sorting functions */
 644                 cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 645                 while (cursor) {
 646                         gint col_id = GPOINTER_TO_INT (g_object_get_data(G_OBJECT(cursor->data),
 647                                                                          MODEST_HEADER_VIEW_COLUMN));
 648                         gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 649                                                          col_id,
 650                                                          (GtkTreeIterCompareFunc)cmp_rows,
 651                                                          cursor->data, NULL);
 652                         cursor = g_list_next(cursor);
 653                 }
 654                 g_list_free (cols);
 655                 gtk_tree_view_set_model (GTK_TREE_VIEW (self), sortable);
 656         }
 657 }
 658
 659
 660 static void
 661 on_refresh_folder_status_update (TnyFolder *folder, const gchar *msg,
 662                                  gint num, gint total,  gpointer user_data)
 663 {
 664         ModestHeaderView *self;
 665         ModestHeaderViewPrivate *priv;
 666
 667         self = MODEST_HEADER_VIEW(user_data);
 668         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 669
 670         /* FIXME: this is a hack ==> tinymail gives us this when
 671          * it has nothing better to do */
 672         if (num == 1 && total == 100)
 673                 return;
 674
 675         g_signal_emit (G_OBJECT(self), signals[STATUS_UPDATE_SIGNAL],
 676                        0, msg, num, total);
 677 }
 678
 679
 680 TnyFolder*
 681 modest_header_view_get_folder (ModestHeaderView *self)
 682 {
 683         ModestHeaderViewPrivate *priv;
 684         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 685
 686         return priv->folder;
 687 }
 688
 689
 690 void
 691 modest_header_view_set_folder (ModestHeaderView *self, TnyFolder *folder)
 692 {
 693         ModestHeaderViewPrivate *priv;
 694         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 695
 696         priv->folder = folder;
 697
 698         if (folder) {
 699                 tny_folder_refresh_async (folder,
 700                                           on_refresh_folder,
 701                                           on_refresh_folder_status_update,
 702                                           self);
 703
 704                 /* no message selected */
 705                 g_signal_emit (G_OBJECT(self), signals[HEADER_SELECTED_SIGNAL], 0,
 706                                NULL);
 707         }
 708 }
 709
 710 static gboolean
 711 on_header_clicked (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
 712 {
 713         ModestHeaderView *self;
 714         ModestHeaderViewPrivate *priv;
 715         GtkTreeIter iter;
 716         GtkTreeSelection *sel;
 717         GtkTreeModel *model;
 718         TnyHeader *header;
 719
 720         /* ignore everything but doubleclick */
 721         if (event->type != GDK_2BUTTON_PRESS)
 722                 return FALSE;
 723
 724         self = MODEST_HEADER_VIEW (widget);
 725         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 726
 727         sel   = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 728         model = gtk_tree_view_get_model (GTK_TREE_VIEW(self));
 729
 730         if (!gtk_tree_selection_get_selected (sel, &model, &iter))
 731                 return FALSE; /* msg was _un_selected */
 732
 733         /* get the first selected item */
 734         gtk_tree_model_get (model, &iter,
 735                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 736                             &header, -1);
 737         /* Emit signal */
 738         g_signal_emit (G_OBJECT(self),
 739                        signals[HEADER_ACTIVATED_SIGNAL],
 740                        0, header);
 741
 742         return TRUE;
 743 }
 744
 745
 746 static void
 747 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
 748 {
 749         GtkTreeModel *model;
 750         TnyHeader *header;
 751         GtkTreeIter iter;
 752         ModestHeaderView *self;
 753         ModestHeaderViewPrivate *priv;
 754
 755         g_return_if_fail (sel);
 756         g_return_if_fail (user_data);
 757
 758         self = MODEST_HEADER_VIEW (user_data);
 759         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 760
 761         if (!gtk_tree_selection_get_selected (sel, &model, &iter))
 762                 return; /* msg was _un_selected */
 763
 764         gtk_tree_model_get (model, &iter,
 765                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 766                             &header, -1);
 767
 768         /* Emit signal */
 769         g_signal_emit (G_OBJECT(self),
 770                        signals[HEADER_SELECTED_SIGNAL],
 771                        0, header);
 772 }
 773
 774
 775 /* PROTECTED method. It's useful when we want to force a given
 776    selection to reload a msg. For example if we have selected a header
 777    in offline mode, when Modest become online, we want to reload the
 778    message automatically without an user click over the header */
 779 void
 780 _modest_header_view_change_selection (GtkTreeSelection *selection,
 781                                       gpointer user_data)
 782 {
 783         g_return_if_fail (GTK_IS_TREE_SELECTION (selection));
 784         g_return_if_fail (MODEST_IS_HEADER_VIEW (user_data));
 785
 786         on_selection_changed (selection, user_data);
 787 }
 788
 789
 790 static gint
 791 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
 792           gpointer user_data)
 793 {
 794         gint col_id;
 795         gint t1, t2;
 796         gint val1, val2;
 797         gchar *s1, *s2;
 798         gint cmp;
 799
 800         static int counter = 0;
 801         col_id = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(user_data), MODEST_HEADER_VIEW_COLUMN));
 802
 803         if (!(++counter % 100)) {
 804                 GObject *header_view = g_object_get_data(G_OBJECT(user_data),
 805                                                          MODEST_HEADER_VIEW_PTR);
 806                 g_signal_emit (header_view,
 807                                signals[STATUS_UPDATE_SIGNAL],
 808                                0, _("Sorting..."), 0, 0);
 809         }
 810         switch (col_id) {
 811
 812                 /* first one, we decide based on the time */
 813         case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 814         case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
 815
 816                 gtk_tree_model_get (tree_model, iter1,
 817                                     TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 818                                     &t1,-1);
 819                 gtk_tree_model_get (tree_model, iter2,
 820                                     TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 821                                     &t2,-1);
 822                 return t1 - t2;
 823
 824         case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
 825         case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
 826                 gtk_tree_model_get (tree_model, iter1,
 827                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 828                                     &t1,-1);
 829                 gtk_tree_model_get (tree_model, iter2,
 830                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 831                                     &t2,-1);
 832                 return t1 - t2;
 833
 834
 835                 /* next ones, we try the search criteria first, if they're the same, then we use 'sent date' */
 836                 /* FIXME: what about received-date? */
 837         case MODEST_HEADER_VIEW_COLUMN_SUBJECT: {
 838
 839                 gtk_tree_model_get (tree_model, iter1,
 840                                     TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &s1,
 841                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
 842                                     -1);
 843                 gtk_tree_model_get (tree_model, iter2,
 844                                     TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &s2,
 845                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
 846                                     -1);
 847
 848                 /* the prefix ('Re:', 'Fwd:' etc.) we ignore */
 849                 cmp = modest_text_utils_utf8_strcmp (s1 + modest_text_utils_get_subject_prefix_len(s1),
 850                                                      s2 + modest_text_utils_get_subject_prefix_len(s2),
 851                                                      TRUE);
 852                 g_free (s1);
 853                 g_free (s2);
 854
 855                 return cmp ? cmp : t1 - t2;
 856         }
 857
 858         case MODEST_HEADER_VIEW_COLUMN_FROM:
 859
 860                 gtk_tree_model_get (tree_model, iter1,
 861                                     TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN, &s1,
 862                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
 863                                     -1);
 864                 gtk_tree_model_get (tree_model, iter2,
 865                                     TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN, &s2,
 866                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
 867                                     -1);
 868                 cmp = modest_text_utils_utf8_strcmp (s1, s2, TRUE);
 869                 g_free (s1);
 870                 g_free (s2);
 871
 872                 return cmp ? cmp : t1 - t2;
 873
 874         case MODEST_HEADER_VIEW_COLUMN_TO:
 875
 876                 gtk_tree_model_get (tree_model, iter1,
 877                                     TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN, &s1,
 878                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,
 879                                     -1);
 880                 gtk_tree_model_get (tree_model, iter2,
 881                                     TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN, &s2,
 882                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,
 883                                     -1);
 884                 cmp = modest_text_utils_utf8_strcmp (s1, s2, TRUE);
 885                 g_free (s1);
 886                 g_free (s2);
 887
 888                 return cmp ? cmp : t1 - t2;
 889
 890         case MODEST_HEADER_VIEW_COLUMN_ATTACH:
 891
 892                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
 893                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1, -1);
 894                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
 895                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2, -1);
 896
 897                 cmp = (val1 & TNY_HEADER_FLAG_ATTACHMENTS) -
 898                         (val2 & TNY_HEADER_FLAG_ATTACHMENTS);
 899
 900                 return cmp ? cmp : t1 - t2;
 901
 902         case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
 903                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
 904                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,-1);
 905                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
 906                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,-1);
 907                 cmp =  (val1 & TNY_HEADER_FLAG_SEEN) - (val2 & TNY_HEADER_FLAG_SEEN);
 908
 909                 return cmp ? cmp : t1 - t2;
 910
 911         default:
 912                 return &iter1 - &iter2; /* oughhhh  */
 913         }
 914 }
 915
 916 static const GtkTargetEntry drag_types[] =
 917 {
 918         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP, 0 }
 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 setup_drag_and_drop (GtkTreeView *self)
 947 {
 948         gtk_drag_source_set (GTK_WIDGET (self),
 949                              GDK_BUTTON1_MASK | GDK_BUTTON3_MASK,
 950                              drag_types,
 951                              G_N_ELEMENTS (drag_types),
 952                              GDK_ACTION_MOVE);
 953
 954         gtk_signal_connect(GTK_OBJECT (self),
 955                            "drag_data_get",
 956                            GTK_SIGNAL_FUNC(drag_data_get_cb),
 957                            NULL);
 958 }