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

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <glib/gi18n.h>
  31 #include <tny-list.h>
  32 #include <tny-simple-list.h>
  33 #include <tny-folder-monitor.h>
  34 #include <string.h>
  35
  36 #include <modest-header-view.h>
  37 #include <modest-header-view-priv.h>
  38 #include <modest-dnd.h>
  39 #include <modest-tny-folder.h>
  40
  41 #include <modest-main-window.h>
  42
  43 #include <modest-marshal.h>
  44 #include <modest-text-utils.h>
  45 #include <modest-icon-names.h>
  46 #include <modest-runtime.h>
  47 #include "modest-platform.h"
  48 #include <modest-hbox-cell-renderer.h>
  49 #include <modest-vbox-cell-renderer.h>
  50
  51 static void modest_header_view_class_init  (ModestHeaderViewClass *klass);
  52 static void modest_header_view_init        (ModestHeaderView *obj);
  53 static void modest_header_view_finalize    (GObject *obj);
  54
  55 static void          on_header_row_activated (GtkTreeView *treeview, GtkTreePath *path,
  56                                               GtkTreeViewColumn *column, gpointer userdata);
  57
  58 static gint          cmp_rows               (GtkTreeModel *tree_model,
  59                                              GtkTreeIter *iter1,
  60                                              GtkTreeIter *iter2,
  61                                              gpointer user_data);
  62
  63 static void          on_selection_changed   (GtkTreeSelection *sel,
  64                                              gpointer user_data);
  65
  66 static void          setup_drag_and_drop    (GtkTreeView *self);
  67
  68 static GtkTreePath * get_selected_row       (GtkTreeView *self, GtkTreeModel **model);
  69
  70 static gboolean      on_focus_in            (GtkWidget     *sef,
  71                                              GdkEventFocus *event,
  72                                              gpointer       user_data);
  73
  74 static void          folder_monitor_update  (TnyFolderObserver *self,
  75                                              TnyFolderChange *change);
  76
  77 static void          tny_folder_observer_init (TnyFolderObserverIface *klass);
  78
  79 static void          _on_new_folder_assigned (const GObject *obj, TnyFolder *folder, gpointer user_data);
  80
  81
  82 typedef struct _ModestHeaderViewPrivate ModestHeaderViewPrivate;
  83 struct _ModestHeaderViewPrivate {
  84         TnyFolder            *folder;
  85         ModestHeaderViewStyle style;
  86
  87         TnyFolderMonitor     *monitor;
  88         GMutex               *observers_lock;
  89
  90         gint                  sort_colid[2][TNY_FOLDER_TYPE_NUM];
  91         gint                  sort_type[2][TNY_FOLDER_TYPE_NUM];
  92
  93
  94 };
  95
  96 typedef struct _HeadersCountChangedHelper HeadersCountChangedHelper;
  97 struct _HeadersCountChangedHelper {
  98         ModestHeaderView *self;
  99         TnyFolderChange  *change;
 100 };
 101
 102
 103 #define MODEST_HEADER_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 104                                                 MODEST_TYPE_HEADER_VIEW, \
 105                                                 ModestHeaderViewPrivate))
 106
 107
 108
 109 #define MODEST_HEADER_VIEW_PTR "modest-header-view"
 110
 111 enum {
 112         HEADER_SELECTED_SIGNAL,
 113         HEADER_ACTIVATED_SIGNAL,
 114         ITEM_NOT_FOUND_SIGNAL,
 115         MSG_COUNT_CHANGED_SIGNAL,
 116         LAST_SIGNAL
 117 };
 118
 119 /* globals */
 120 static GObjectClass *parent_class = NULL;
 121
 122 /* uncomment the following if you have defined any signals */
 123 static guint signals[LAST_SIGNAL] = {0};
 124
 125 GType
 126 modest_header_view_get_type (void)
 127 {
 128         static GType my_type = 0;
 129         if (!my_type) {
 130                 static const GTypeInfo my_info = {
 131                         sizeof(ModestHeaderViewClass),
 132                         NULL,           /* base init */
 133                         NULL,           /* base finalize */
 134                         (GClassInitFunc) modest_header_view_class_init,
 135                         NULL,           /* class finalize */
 136                         NULL,           /* class data */
 137                         sizeof(ModestHeaderView),
 138                         1,              /* n_preallocs */
 139                         (GInstanceInitFunc) modest_header_view_init,
 140                         NULL
 141                 };
 142
 143                 static const GInterfaceInfo tny_folder_observer_info =
 144                 {
 145                         (GInterfaceInitFunc) tny_folder_observer_init, /* interface_init */
 146                         NULL,         /* interface_finalize */
 147                         NULL          /* interface_data */
 148                 };
 149                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
 150                                                   "ModestHeaderView",
 151                                                   &my_info, 0);
 152
 153                 g_type_add_interface_static (my_type, TNY_TYPE_FOLDER_OBSERVER,
 154                                              &tny_folder_observer_info);
 155
 156
 157         }
 158         return my_type;
 159 }
 160
 161 static void
 162 modest_header_view_class_init (ModestHeaderViewClass *klass)
 163 {
 164         GObjectClass *gobject_class;
 165         gobject_class = (GObjectClass*) klass;
 166
 167         parent_class            = g_type_class_peek_parent (klass);
 168         gobject_class->finalize = modest_header_view_finalize;
 169
 170         g_type_class_add_private (gobject_class, sizeof(ModestHeaderViewPrivate));
 171
 172         signals[HEADER_SELECTED_SIGNAL] =
 173                 g_signal_new ("header_selected",
 174                               G_TYPE_FROM_CLASS (gobject_class),
 175                               G_SIGNAL_RUN_FIRST,
 176                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_selected),
 177                               NULL, NULL,
 178                               g_cclosure_marshal_VOID__POINTER,
 179                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 180
 181         signals[HEADER_ACTIVATED_SIGNAL] =
 182                 g_signal_new ("header_activated",
 183                               G_TYPE_FROM_CLASS (gobject_class),
 184                               G_SIGNAL_RUN_FIRST,
 185                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_activated),
 186                               NULL, NULL,
 187                               g_cclosure_marshal_VOID__POINTER,
 188                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 189
 190
 191         signals[ITEM_NOT_FOUND_SIGNAL] =
 192                 g_signal_new ("item_not_found",
 193                               G_TYPE_FROM_CLASS (gobject_class),
 194                               G_SIGNAL_RUN_FIRST,
 195                               G_STRUCT_OFFSET (ModestHeaderViewClass,item_not_found),
 196                               NULL, NULL,
 197                               g_cclosure_marshal_VOID__INT,
 198                               G_TYPE_NONE, 1, G_TYPE_INT);
 199
 200         signals[MSG_COUNT_CHANGED_SIGNAL] =
 201                 g_signal_new ("msg_count_changed",
 202                               G_TYPE_FROM_CLASS (gobject_class),
 203                               G_SIGNAL_RUN_FIRST,
 204                               G_STRUCT_OFFSET (ModestHeaderViewClass, msg_count_changed),
 205                               NULL, NULL,
 206                               modest_marshal_VOID__POINTER_POINTER,
 207                               G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_POINTER);
 208 }
 209
 210 static void
 211 tny_folder_observer_init (TnyFolderObserverIface *klass)
 212 {
 213         klass->update_func = folder_monitor_update;
 214 }
 215
 216 static GtkTreeViewColumn*
 217 get_new_column (const gchar *name, GtkCellRenderer *renderer,
 218                 gboolean resizable, gint sort_col_id, gboolean show_as_text,
 219                 GtkTreeCellDataFunc cell_data_func, gpointer user_data)
 220 {
 221         GtkTreeViewColumn *column;
 222
 223         column =  gtk_tree_view_column_new_with_attributes(name, renderer, NULL);
 224         gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
 225
 226         gtk_tree_view_column_set_resizable (column, resizable);
 227         if (resizable)
 228                 gtk_tree_view_column_set_expand (column, TRUE);
 229
 230         if (show_as_text)
 231                 gtk_tree_view_column_add_attribute (column, renderer, "text",
 232                                                     sort_col_id);
 233         if (sort_col_id >= 0)
 234                 gtk_tree_view_column_set_sort_column_id (column, sort_col_id);
 235
 236         gtk_tree_view_column_set_sort_indicator (column, FALSE);
 237         gtk_tree_view_column_set_reorderable (column, TRUE);
 238
 239         if (cell_data_func)
 240                 gtk_tree_view_column_set_cell_data_func(column, renderer, cell_data_func,
 241                                                         user_data, NULL);
 242         return column;
 243 }
 244
 245
 246 static void
 247 remove_all_columns (ModestHeaderView *obj)
 248 {
 249         GList *columns, *cursor;
 250
 251         columns = gtk_tree_view_get_columns (GTK_TREE_VIEW(obj));
 252
 253         for (cursor = columns; cursor; cursor = cursor->next)
 254                 gtk_tree_view_remove_column (GTK_TREE_VIEW(obj),
 255                                              GTK_TREE_VIEW_COLUMN(cursor->data));
 256         g_list_free (columns);
 257 }
 258
 259 gboolean
 260 modest_header_view_set_columns (ModestHeaderView *self, const GList *columns, TnyFolderType type)
 261 {
 262         GtkTreeModel *sortable;
 263         GtkTreeViewColumn *column=NULL;
 264         GtkTreeSelection *selection = NULL;
 265         GtkCellRenderer *renderer_msgtype,*renderer_header,
 266                 *renderer_attach, *renderer_compact_date;
 267         GtkCellRenderer *renderer_compact_header, *renderer_recpt_box,
 268                 *renderer_subject, *renderer_subject_box, *renderer_recpt,
 269                 *renderer_priority;
 270         ModestHeaderViewPrivate *priv;
 271         GtkTreeViewColumn *compact_column = NULL;
 272         const GList *cursor;
 273
 274         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 275
 276         /* FIXME: check whether these renderers need to be freed */
 277         renderer_msgtype = gtk_cell_renderer_pixbuf_new ();
 278         renderer_attach  = gtk_cell_renderer_pixbuf_new ();
 279         renderer_priority  = gtk_cell_renderer_pixbuf_new ();
 280         renderer_header  = gtk_cell_renderer_text_new ();
 281
 282         renderer_compact_header = modest_vbox_cell_renderer_new ();
 283         renderer_recpt_box = modest_hbox_cell_renderer_new ();
 284         renderer_subject_box = modest_hbox_cell_renderer_new ();
 285         renderer_recpt = gtk_cell_renderer_text_new ();
 286         renderer_subject = gtk_cell_renderer_text_new ();
 287         renderer_compact_date  = gtk_cell_renderer_text_new ();
 288
 289         modest_vbox_cell_renderer_append (MODEST_VBOX_CELL_RENDERER (renderer_compact_header), renderer_subject_box, FALSE);
 290         g_object_set_data (G_OBJECT (renderer_compact_header), "subject-box-renderer", renderer_subject_box);
 291         modest_vbox_cell_renderer_append (MODEST_VBOX_CELL_RENDERER (renderer_compact_header), renderer_recpt_box, FALSE);
 292         g_object_set_data (G_OBJECT (renderer_compact_header), "recpt-box-renderer", renderer_recpt_box);
 293         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_subject_box), renderer_priority, FALSE);
 294         g_object_set_data (G_OBJECT (renderer_subject_box), "priority-renderer", renderer_priority);
 295         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_subject_box), renderer_subject, TRUE);
 296         g_object_set_data (G_OBJECT (renderer_subject_box), "subject-renderer", renderer_subject);
 297         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_recpt_box), renderer_attach, FALSE);
 298         g_object_set_data (G_OBJECT (renderer_recpt_box), "attach-renderer", renderer_attach);
 299         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_recpt_box), renderer_recpt, TRUE);
 300         g_object_set_data (G_OBJECT (renderer_recpt_box), "recipient-renderer", renderer_recpt);
 301         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_recpt_box), renderer_compact_date, FALSE);
 302         g_object_set_data (G_OBJECT (renderer_recpt_box), "date-renderer", renderer_compact_date);
 303
 304         g_object_set(G_OBJECT(renderer_header),
 305                      "ellipsize", PANGO_ELLIPSIZE_END,
 306                      NULL);
 307         g_object_set (G_OBJECT (renderer_subject),
 308                       "ellipsize", PANGO_ELLIPSIZE_END,
 309                       NULL);
 310         g_object_set (G_OBJECT (renderer_recpt),
 311                       "ellipsize", PANGO_ELLIPSIZE_END,
 312                       NULL);
 313         g_object_set(G_OBJECT(renderer_compact_date),
 314                      "xalign", 1.0,
 315                      NULL);
 316
 317         gtk_cell_renderer_set_fixed_size (renderer_attach, 32, 32);
 318         gtk_cell_renderer_set_fixed_size (renderer_priority, 32, 32);
 319
 320         remove_all_columns (self);
 321
 322         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 323         gtk_tree_selection_set_mode(selection, GTK_SELECTION_MULTIPLE);
 324         sortable = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 325
 326         /* Add new columns */
 327         for (cursor = columns; cursor; cursor = g_list_next(cursor)) {
 328                 ModestHeaderViewColumn col =
 329                         (ModestHeaderViewColumn) GPOINTER_TO_INT(cursor->data);
 330
 331                 if (0> col || col >= MODEST_HEADER_VIEW_COLUMN_NUM) {
 332                         g_printerr ("modest: invalid column %d in column list\n", col);
 333                         continue;
 334                 }
 335
 336                 switch (col) {
 337
 338                 case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
 339                         column = get_new_column (_("M"), renderer_msgtype, FALSE,
 340                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 341                                                  FALSE,
 342                                                  (GtkTreeCellDataFunc)_modest_header_view_msgtype_cell_data,
 343                                                  NULL);
 344                         gtk_tree_view_column_set_fixed_width (column, 45);
 345                         break;
 346
 347                 case MODEST_HEADER_VIEW_COLUMN_ATTACH:
 348                         column = get_new_column (_("A"), renderer_attach, FALSE,
 349                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 350                                                  FALSE,
 351                                                  (GtkTreeCellDataFunc)_modest_header_view_attach_cell_data,
 352                                                  NULL);
 353                         gtk_tree_view_column_set_fixed_width (column, 45);
 354                         break;
 355
 356
 357                 case MODEST_HEADER_VIEW_COLUMN_FROM:
 358                         column = get_new_column (_("From"), renderer_header, TRUE,
 359                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 360                                                  TRUE,
 361                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 362                                                  GINT_TO_POINTER(TRUE));
 363                         break;
 364
 365                 case MODEST_HEADER_VIEW_COLUMN_TO:
 366                         column = get_new_column (_("To"), renderer_header, TRUE,
 367                                                  TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN,
 368                                                  TRUE,
 369                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 370                                                  GINT_TO_POINTER(FALSE));
 371                         break;
 372
 373                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 374                         column = get_new_column (_("Header"), renderer_compact_header, TRUE,
 375                                                      TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 376                                                      FALSE,
 377                                                      (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 378                                                      GINT_TO_POINTER(TRUE));
 379                         compact_column = column;
 380                         break;
 381
 382                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
 383                         column = get_new_column (_("Header"), renderer_compact_header, TRUE,
 384                                                      TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 385                                                      FALSE,
 386                                                      (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 387                                                      GINT_TO_POINTER(FALSE));
 388                         compact_column = column;
 389                         break;
 390
 391
 392                 case MODEST_HEADER_VIEW_COLUMN_SUBJECT:
 393                         column = get_new_column (_("Subject"), renderer_header, TRUE,
 394                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 395                                                  TRUE,
 396                                                  (GtkTreeCellDataFunc)_modest_header_view_header_cell_data,
 397                                                  NULL);
 398                         break;
 399
 400                 case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
 401                         column = get_new_column (_("Received"), renderer_header, TRUE,
 402                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 403                                                  TRUE,
 404                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 405                                                  GINT_TO_POINTER(TRUE));
 406                         break;
 407
 408                 case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
 409                         column = get_new_column (_("Sent"), renderer_header, TRUE,
 410                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 411                                                  TRUE,
 412                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 413                                                  GINT_TO_POINTER(FALSE));
 414                         break;
 415
 416                 case MODEST_HEADER_VIEW_COLUMN_SIZE:
 417                         column = get_new_column (_("Size"), renderer_header, TRUE,
 418                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 419                                                  FALSE,
 420                                                  (GtkTreeCellDataFunc)_modest_header_view_size_cell_data,
 421                                                  NULL);
 422                         break;
 423                 case MODEST_HEADER_VIEW_COLUMN_STATUS:
 424                         column = get_new_column (_("Status"), renderer_compact_date, TRUE,
 425                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 426                                                  FALSE,
 427                                                  (GtkTreeCellDataFunc)_modest_header_view_status_cell_data,
 428                                                  NULL);
 429                         break;
 430
 431                 default:
 432                         g_return_val_if_reached(FALSE);
 433                 }
 434
 435                 /* we keep the column id around */
 436                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_COLUMN,
 437                                    GINT_TO_POINTER(col));
 438
 439                 /* we need this ptr when sorting the rows */
 440                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_PTR,
 441                                    self);
 442                 gtk_tree_view_append_column (GTK_TREE_VIEW(self), column);
 443         }
 444
 445         if (sortable) {
 446                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 447                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 448                                                  (GtkTreeIterCompareFunc) cmp_rows,
 449                                                  compact_column, NULL);
 450         }
 451
 452
 453         return TRUE;
 454 }
 455
 456 static void
 457 modest_header_view_init (ModestHeaderView *obj)
 458 {
 459         ModestHeaderViewPrivate *priv;
 460         guint i, j;
 461
 462         priv = MODEST_HEADER_VIEW_GET_PRIVATE(obj);
 463
 464         priv->folder  = NULL;
 465
 466         priv->monitor        = NULL;
 467         priv->observers_lock = g_mutex_new ();
 468
 469         /* Sort parameters */
 470         for (j=0; j < 2; j++) {
 471                 for (i=0; i < TNY_FOLDER_TYPE_NUM; i++) {
 472                         priv->sort_colid[j][i] = -1;
 473                         priv->sort_type[j][i] = GTK_SORT_DESCENDING;
 474                 }
 475         }
 476
 477         setup_drag_and_drop (GTK_TREE_VIEW (obj));
 478 }
 479
 480 static void
 481 modest_header_view_finalize (GObject *obj)
 482 {
 483         ModestHeaderView        *self;
 484         ModestHeaderViewPrivate *priv;
 485
 486         self = MODEST_HEADER_VIEW(obj);
 487         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 488
 489         g_mutex_lock (priv->observers_lock);
 490         if (priv->monitor) {
 491                 tny_folder_monitor_stop (priv->monitor);
 492                 g_object_unref (G_OBJECT (priv->monitor));
 493         }
 494         g_mutex_unlock (priv->observers_lock);
 495         g_mutex_free (priv->observers_lock);
 496
 497         if (priv->folder) {
 498                 tny_folder_remove_observer (priv->folder, TNY_FOLDER_OBSERVER (obj));
 499                 g_object_unref (G_OBJECT (priv->folder));
 500                 priv->folder   = NULL;
 501         }
 502
 503         G_OBJECT_CLASS(parent_class)->finalize (obj);
 504 }
 505
 506
 507 GtkWidget*
 508 modest_header_view_new (TnyFolder *folder, ModestHeaderViewStyle style)
 509 {
 510         GObject *obj;
 511         GtkTreeSelection *sel;
 512         ModestHeaderView *self;
 513         ModestHeaderViewPrivate *priv;
 514
 515         g_return_val_if_fail (style >= 0 && style < MODEST_HEADER_VIEW_STYLE_NUM,
 516                               NULL);
 517
 518         obj  = G_OBJECT(g_object_new(MODEST_TYPE_HEADER_VIEW, NULL));
 519         self = MODEST_HEADER_VIEW(obj);
 520         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 521
 522         modest_header_view_set_style   (self, style);
 523         modest_header_view_set_folder (self, NULL);
 524
 525         gtk_tree_view_columns_autosize (GTK_TREE_VIEW(obj));
 526         gtk_tree_view_set_fixed_height_mode (GTK_TREE_VIEW(obj),TRUE);
 527         gtk_tree_view_set_enable_search (GTK_TREE_VIEW(obj), TRUE);
 528
 529         gtk_tree_view_set_rules_hint (GTK_TREE_VIEW(obj),
 530                                       TRUE); /* alternating row colors */
 531         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 532
 533         g_signal_connect (sel, "changed",
 534                           G_CALLBACK(on_selection_changed), self);
 535
 536         g_signal_connect (self, "row-activated",
 537                           G_CALLBACK (on_header_row_activated), NULL);
 538
 539         g_signal_connect (self, "focus-in-event",
 540                           G_CALLBACK(on_focus_in), NULL);
 541
 542         return GTK_WIDGET(self);
 543 }
 544
 545
 546 TnyList *
 547 modest_header_view_get_selected_headers (ModestHeaderView *self)
 548 {
 549         GtkTreeSelection *sel;
 550         ModestHeaderViewPrivate *priv;
 551         TnyList *header_list = NULL;
 552         TnyHeader *header;
 553         GList *list, *tmp = NULL;
 554         GtkTreeModel *tree_model = NULL;
 555         GtkTreeIter iter;
 556
 557         g_return_val_if_fail (self, NULL);
 558
 559         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 560
 561         /* Get selected rows */
 562         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 563         list = gtk_tree_selection_get_selected_rows (sel, &tree_model);
 564
 565         if (list) {
 566                 header_list = tny_simple_list_new();
 567
 568                 list = g_list_reverse (list);
 569                 tmp = list;
 570                 while (tmp) {
 571                         /* get header from selection */
 572                         gtk_tree_model_get_iter (tree_model, &iter, (GtkTreePath *) (tmp->data));
 573                         gtk_tree_model_get (tree_model, &iter,
 574                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 575                                             &header, -1);
 576                         /* Prepend to list */
 577                         tny_list_prepend (header_list, G_OBJECT (header));
 578                         g_object_unref (G_OBJECT (header));
 579
 580                         tmp = g_list_next (tmp);
 581                 }
 582                 /* Clean up*/
 583                 g_list_foreach (list, (GFunc) gtk_tree_path_free, NULL);
 584                 g_list_free (list);
 585         }
 586         return header_list;
 587 }
 588
 589
 590 /* scroll our list view so the selected item is visible */
 591 static void
 592 scroll_to_selected (ModestHeaderView *self, GtkTreeIter *iter, gboolean up)
 593 {
 594 #ifdef MODEST_PLATFORM_GNOME
 595
 596         GtkTreePath *selected_path;
 597         GtkTreePath *start, *end;
 598
 599         GtkTreeModel *model;
 600
 601         model         = gtk_tree_view_get_model (GTK_TREE_VIEW(self));
 602         selected_path = gtk_tree_model_get_path (model, iter);
 603
 604         start = gtk_tree_path_new ();
 605         end   = gtk_tree_path_new ();
 606
 607         gtk_tree_view_get_visible_range (GTK_TREE_VIEW(self), &start, &end);
 608
 609         if (gtk_tree_path_compare (selected_path, start) < 0 ||
 610             gtk_tree_path_compare (end, selected_path) < 0)
 611                 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW(self),
 612                                               selected_path, NULL, TRUE,
 613                                               up ? 0.0 : 1.0,
 614                                               up ? 0.0 : 1.0);
 615         gtk_tree_path_free (selected_path);
 616         gtk_tree_path_free (start);
 617         gtk_tree_path_free (end);
 618
 619 #endif /* MODEST_PLATFORM_GNOME */
 620 }
 621
 622
 623 void
 624 modest_header_view_select_next (ModestHeaderView *self)
 625 {
 626         GtkTreeSelection *sel;
 627         GtkTreeIter iter;
 628         GtkTreeModel *model;
 629         GtkTreePath *path;
 630
 631         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 632         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 633         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 634                 /* Unselect previous path */
 635                 gtk_tree_selection_unselect_path (sel, path);
 636
 637                 /* Move path down and selects new one  */
 638                 if (gtk_tree_model_iter_next (model, &iter)) {
 639                         gtk_tree_selection_select_iter (sel, &iter);
 640                         scroll_to_selected (self, &iter, FALSE);
 641                 }
 642                 gtk_tree_path_free(path);
 643         }
 644
 645 }
 646
 647 void
 648 modest_header_view_select_prev (ModestHeaderView *self)
 649 {
 650         GtkTreeSelection *sel;
 651         GtkTreeIter iter;
 652         GtkTreeModel *model;
 653         GtkTreePath *path;
 654
 655         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 656         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 657         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 658                 /* Unselect previous path */
 659                 gtk_tree_selection_unselect_path (sel, path);
 660
 661                 /* Move path up */
 662                 if (gtk_tree_path_prev (path)) {
 663                         gtk_tree_model_get_iter (model, &iter, path);
 664
 665                         /* Select the new one */
 666                         gtk_tree_selection_select_iter (sel, &iter);
 667                         scroll_to_selected (self, &iter, TRUE);
 668
 669                 }
 670                 gtk_tree_path_free (path);
 671         }
 672 }
 673
 674 GList*
 675 modest_header_view_get_columns (ModestHeaderView *self)
 676 {
 677         g_return_val_if_fail (self, FALSE);
 678         return gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 679 }
 680
 681
 682 gboolean
 683 modest_header_view_is_empty (ModestHeaderView *self)
 684 {
 685         g_return_val_if_fail (self, FALSE);
 686         return FALSE; /* FIXME */
 687 }
 688
 689
 690 gboolean
 691 modest_header_view_set_style (ModestHeaderView *self,
 692                               ModestHeaderViewStyle style)
 693 {
 694         ModestHeaderViewPrivate *priv;
 695         gboolean show_col_headers = FALSE;
 696         ModestHeaderViewStyle old_style;
 697
 698         g_return_val_if_fail (self, FALSE);
 699         g_return_val_if_fail (style >= 0 && MODEST_HEADER_VIEW_STYLE_NUM,
 700                               FALSE);
 701
 702         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 703         if (priv->style == style)
 704                 return TRUE; /* nothing to do */
 705
 706         switch (style) {
 707         case MODEST_HEADER_VIEW_STYLE_DETAILS:
 708                 show_col_headers = TRUE;
 709                 break;
 710         case MODEST_HEADER_VIEW_STYLE_TWOLINES:
 711                 break;
 712         default:
 713                 g_return_val_if_reached (FALSE);
 714         }
 715         gtk_tree_view_set_headers_visible   (GTK_TREE_VIEW(self), show_col_headers);
 716         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(self), show_col_headers);
 717
 718         old_style   = priv->style;
 719         priv->style = style;
 720
 721         return TRUE;
 722 }
 723
 724
 725 ModestHeaderViewStyle
 726 modest_header_view_get_style (ModestHeaderView *self)
 727 {
 728         g_return_val_if_fail (self, FALSE);
 729         return MODEST_HEADER_VIEW_GET_PRIVATE(self)->style;
 730 }
 731
 732 /*
 733  * This function sets a sortable model in the header view. It's just
 734  * used for developing purposes, because it only does a
 735  * gtk_tree_view_set_model
 736  */
 737 static void
 738 modest_header_view_set_model (GtkTreeView *header_view, GtkTreeModel *model)
 739 {
 740         GtkTreeModel *old_model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
 741
 742         if (old_model_sort && GTK_IS_TREE_MODEL_SORT (old_model_sort)) {
 743                 GtkTreeModel *old_model;
 744                 ModestHeaderViewPrivate *priv;
 745
 746                 priv = MODEST_HEADER_VIEW_GET_PRIVATE (header_view);
 747                 old_model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (old_model_sort));
 748
 749                 /* Set new model */
 750                 gtk_tree_view_set_model (header_view, model);
 751         } else
 752                 gtk_tree_view_set_model (header_view, model);
 753
 754         return;
 755 }
 756
 757 TnyFolder*
 758 modest_header_view_get_folder (ModestHeaderView *self)
 759 {
 760         ModestHeaderViewPrivate *priv;
 761         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 762
 763         if (priv->folder)
 764                 g_object_ref (priv->folder);
 765
 766         return priv->folder;
 767 }
 768
 769 static void
 770 modest_header_view_set_folder_intern (ModestHeaderView *self, TnyFolder *folder)
 771 {
 772         TnyFolderType type;
 773         TnyList *headers;
 774         ModestHeaderViewPrivate *priv;
 775         GList *cols, *cursor;
 776         GtkTreeModel *sortable;
 777         guint sort_colid;
 778         GtkSortType sort_type;
 779
 780         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 781
 782         headers = TNY_LIST (tny_gtk_header_list_model_new ());
 783
 784         tny_gtk_header_list_model_set_folder (TNY_GTK_HEADER_LIST_MODEL(headers),
 785                                               folder, FALSE);
 786
 787         /* Add IDLE observer (monitor) and another folder observer for
 788            new messages (self) */
 789         g_mutex_lock (priv->observers_lock);
 790         if (priv->monitor) {
 791                 tny_folder_monitor_stop (priv->monitor);
 792                 g_object_unref (G_OBJECT (priv->monitor));
 793         }
 794         priv->monitor = TNY_FOLDER_MONITOR (tny_folder_monitor_new (folder));
 795         tny_folder_monitor_add_list (priv->monitor, TNY_LIST (headers));
 796         tny_folder_monitor_start (priv->monitor);
 797         tny_folder_add_observer (folder, TNY_FOLDER_OBSERVER (self));
 798         g_mutex_unlock (priv->observers_lock);
 799
 800         sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(headers));
 801         g_object_unref (G_OBJECT (headers));
 802
 803         /* install our special sorting functions */
 804         cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 805
 806         /* Restore sort column id */
 807         if (cols) {
 808                 type  = modest_tny_folder_guess_folder_type (folder);
 809                 sort_colid = modest_header_view_get_sort_column_id (self, type);
 810                 sort_type = modest_header_view_get_sort_type (self, type);
 811                 gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 812                                                       sort_colid,
 813                                                       sort_type);
 814                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 815                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 816                                                  (GtkTreeIterCompareFunc) cmp_rows,
 817                                                  cols->data, NULL);
 818         }
 819
 820         /* Set new model */
 821         modest_header_view_set_model (GTK_TREE_VIEW (self), sortable);
 822         g_object_unref (G_OBJECT (sortable));
 823
 824         /* Free */
 825         g_list_free (cols);
 826 }
 827
 828 void
 829 modest_header_view_sort_by_column_id (ModestHeaderView *self,
 830                                       guint sort_colid,
 831                                       GtkSortType sort_type)
 832 {
 833         ModestHeaderViewPrivate *priv = NULL;
 834         GtkTreeModel *sortable = NULL;
 835         TnyFolderType type;
 836
 837         /* Get model and private data */
 838         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 839         sortable = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 840
 841         /* Sort tree model */
 842         type  = modest_tny_folder_guess_folder_type (priv->folder);
 843         gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 844                                               sort_colid,
 845                                               sort_type);
 846         /* Store new sort parameters */
 847         modest_header_view_set_sort_params (self, sort_colid, sort_type, type);
 848
 849         /* Save GConf parameters */
 850 /*      modest_widget_memory_save (modest_runtime_get_conf(), */
 851 /*                                 G_OBJECT(self), "header-view"); */
 852
 853 }
 854
 855 void
 856 modest_header_view_set_sort_params (ModestHeaderView *self,
 857                                     guint sort_colid,
 858                                     GtkSortType sort_type,
 859                                     TnyFolderType type)
 860 {
 861         ModestHeaderViewPrivate *priv;
 862         ModestHeaderViewStyle style;
 863
 864         style = modest_header_view_get_style   (self);
 865         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 866
 867         priv->sort_colid[style][type] = sort_colid;
 868         priv->sort_type[style][type] = sort_type;
 869 }
 870
 871 gint
 872 modest_header_view_get_sort_column_id (ModestHeaderView *self,
 873                                        TnyFolderType type)
 874 {
 875         ModestHeaderViewPrivate *priv;
 876         ModestHeaderViewStyle style;
 877
 878         style = modest_header_view_get_style   (self);
 879         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 880
 881         return priv->sort_colid[style][type];
 882 }
 883
 884 GtkSortType
 885 modest_header_view_get_sort_type (ModestHeaderView *self,
 886                                   TnyFolderType type)
 887 {
 888         ModestHeaderViewPrivate *priv;
 889         ModestHeaderViewStyle style;
 890
 891         style = modest_header_view_get_style   (self);
 892         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 893
 894         return priv->sort_type[style][type];
 895 }
 896
 897 void
 898 modest_header_view_set_folder (ModestHeaderView *self, TnyFolder *folder)
 899 {
 900         ModestHeaderViewPrivate *priv;
 901         ModestMailOperation *mail_op = NULL;
 902         ModestWindowMgr *mgr = NULL;
 903         GObject *source = NULL;
 904
 905         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 906
 907         if (priv->folder) {
 908                 g_mutex_lock (priv->observers_lock);
 909                 tny_folder_remove_observer (priv->folder, TNY_FOLDER_OBSERVER (self));
 910                 g_object_unref (priv->folder);
 911                 priv->folder = NULL;
 912                 g_mutex_unlock (priv->observers_lock);
 913         }
 914
 915         if (folder) {
 916
 917                 /* Get main window to use it as source of mail operation */
 918                 mgr = modest_runtime_get_window_mgr ();
 919                 source = G_OBJECT (modest_window_mgr_get_main_window (modest_runtime_get_window_mgr ()));
 920
 921                 /* Set folder in the model */
 922                 modest_header_view_set_folder_intern (self, folder);
 923
 924                 /* Pick my reference. Nothing to do with the mail operation */
 925                 priv->folder = g_object_ref (folder);
 926
 927                 /* no message selected */
 928                 g_signal_emit (G_OBJECT(self), signals[HEADER_SELECTED_SIGNAL], 0, NULL);
 929
 930                 /* Create the mail operation (source will be the parent widget) */
 931                 mail_op = modest_mail_operation_new (MODEST_MAIL_OPERATION_TYPE_RECEIVE, source);
 932                 modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
 933                                                  mail_op);
 934
 935                 /* Refresh the folder asynchronously */
 936                 modest_mail_operation_refresh_folder (mail_op, folder,
 937                                                       _on_new_folder_assigned,
 938                                                       NULL);
 939
 940                 /* Free */
 941                 g_object_unref (mail_op);
 942
 943         } else {
 944                 g_mutex_lock (priv->observers_lock);
 945
 946                 if (priv->monitor) {
 947                         tny_folder_monitor_stop (priv->monitor);
 948                         g_object_unref (G_OBJECT (priv->monitor));
 949                         priv->monitor = NULL;
 950                 }
 951                 modest_header_view_set_model (GTK_TREE_VIEW (self), NULL);
 952
 953                 g_mutex_unlock (priv->observers_lock);
 954         }
 955 }
 956
 957 static void
 958 on_header_row_activated (GtkTreeView *treeview, GtkTreePath *path,
 959                          GtkTreeViewColumn *column, gpointer userdata)
 960 {
 961         ModestHeaderView *self = NULL;
 962         ModestHeaderViewPrivate *priv = NULL;
 963         GtkTreeIter iter;
 964         GtkTreeModel *model = NULL;
 965         TnyHeader *header;
 966
 967         self = MODEST_HEADER_VIEW (treeview);
 968         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 969
 970         model = gtk_tree_view_get_model (treeview);
 971
 972         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
 973                 return;
 974
 975         /* get the first selected item */
 976         gtk_tree_model_get (model, &iter,
 977                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 978                             &header, -1);
 979         /* Emit signal */
 980         g_signal_emit (G_OBJECT(self),
 981                        signals[HEADER_ACTIVATED_SIGNAL],
 982                        0, header);
 983
 984         /* Free */
 985         g_object_unref (G_OBJECT (header));
 986
 987 }
 988
 989 static void
 990 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
 991 {
 992         GtkTreeModel *model;
 993         TnyHeader *header;
 994         GtkTreePath *path = NULL;
 995         GtkTreeIter iter;
 996         ModestHeaderView *self;
 997         ModestHeaderViewPrivate *priv;
 998         GList *selected = NULL;
 999
1000         g_return_if_fail (sel);
1001         g_return_if_fail (user_data);
1002
1003         self = MODEST_HEADER_VIEW (user_data);
1004         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
1005
1006         selected = gtk_tree_selection_get_selected_rows (sel, &model);
1007         if (selected != NULL)
1008                 path = (GtkTreePath *) selected->data;
1009         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
1010                 return; /* msg was _un_selected */
1011
1012         gtk_tree_model_get (model, &iter,
1013                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
1014                             &header, -1);
1015
1016         /* Emit signal */
1017         g_signal_emit (G_OBJECT(self),
1018                        signals[HEADER_SELECTED_SIGNAL],
1019                        0, header);
1020
1021         g_object_unref (G_OBJECT (header));
1022         gtk_tree_path_free(path);
1023 }
1024
1025
1026 /* PROTECTED method. It's useful when we want to force a given
1027    selection to reload a msg. For example if we have selected a header
1028    in offline mode, when Modest become online, we want to reload the
1029    message automatically without an user click over the header */
1030 void
1031 _modest_header_view_change_selection (GtkTreeSelection *selection,
1032                                       gpointer user_data)
1033 {
1034         g_return_if_fail (GTK_IS_TREE_SELECTION (selection));
1035         g_return_if_fail (MODEST_IS_HEADER_VIEW (user_data));
1036
1037         on_selection_changed (selection, user_data);
1038 }
1039
1040
1041 static gint
1042 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
1043           gpointer user_data)
1044 {
1045         gint col_id;
1046         gint t1, t2;
1047         gint val1, val2;
1048         gint cmp;
1049 /*      static int counter = 0; */
1050
1051         g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN(user_data), 0);
1052 /*      col_id = gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (tree_model)); */
1053         col_id = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(user_data), MODEST_HEADER_VIEW_FLAG_SORT));
1054
1055 /*      if (!(++counter % 100)) { */
1056 /*              GObject *header_view = g_object_get_data(G_OBJECT(user_data), */
1057 /*                                                       MODEST_HEADER_VIEW_PTR); */
1058 /*              g_signal_emit (header_view, */
1059 /*                             signals[STATUS_UPDATE_SIGNAL], */
1060 /*                             0, _("Sorting..."), 0, 0); */
1061 /*      } */
1062         switch (col_id) {
1063         case TNY_HEADER_FLAG_ATTACHMENTS:
1064
1065                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1066                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1, -1);
1067                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1068                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2, -1);
1069
1070                 cmp = (val1 & TNY_HEADER_FLAG_ATTACHMENTS) -
1071                         (val2 & TNY_HEADER_FLAG_ATTACHMENTS);
1072
1073                 return cmp ? cmp : t1 - t2;
1074
1075         case TNY_HEADER_FLAG_PRIORITY:
1076                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1077                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,-1);
1078                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1079                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,-1);
1080
1081                 /* This is for making priority values respect the intuitive sort relationship
1082                  * as HIGH is 11, LOW is 01, and we put NORMAL AS 10 (2) */
1083                 if (val1 == 0) val1 = 2;
1084                 if (val2 == 0) val2 = 2;
1085
1086                 cmp =  (val1 & TNY_HEADER_FLAG_PRIORITY) - (val2 & TNY_HEADER_FLAG_PRIORITY);
1087
1088                 return cmp ? cmp : t1 - t2;
1089
1090         default:
1091                 return &iter1 - &iter2; /* oughhhh  */
1092         }
1093 }
1094
1095 /* Drag and drop stuff */
1096 static void
1097 drag_data_get_cb (GtkWidget *widget, GdkDragContext *context,
1098                   GtkSelectionData *selection_data,
1099                   guint info,  guint time, gpointer data)
1100 {
1101         GtkTreeModel *model = NULL;
1102         GtkTreeIter iter;
1103         GtkTreePath *source_row = NULL;
1104
1105         source_row = get_selected_row (GTK_TREE_VIEW (widget), &model);
1106         if ((source_row == NULL) || (!gtk_tree_model_get_iter(model, &iter, source_row))) return;
1107
1108         switch (info) {
1109         case MODEST_HEADER_ROW:
1110                 gtk_tree_set_row_drag_data (selection_data, model, source_row);
1111                 break;
1112         case MODEST_MSG: {
1113                 TnyHeader *hdr;
1114                 gtk_tree_model_get (model, &iter,
1115                                     TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN, &hdr,
1116                                     -1);
1117                 if (hdr) {
1118                         g_object_unref (G_OBJECT(hdr));
1119                 }
1120                 break;
1121         }
1122         default:
1123                 g_message ("%s: default switch case.", __FUNCTION__);
1124         }
1125
1126         gtk_tree_path_free (source_row);
1127 }
1128
1129 /* Header view drag types */
1130 const GtkTargetEntry header_view_drag_types[] = {
1131         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP, MODEST_HEADER_ROW },
1132         { "text/uri-list",      0,                   MODEST_MSG },
1133 };
1134
1135 static void
1136 setup_drag_and_drop (GtkTreeView *self)
1137 {
1138         gtk_drag_source_set (GTK_WIDGET (self),
1139                              GDK_BUTTON1_MASK,
1140                              header_view_drag_types,
1141                              G_N_ELEMENTS (header_view_drag_types),
1142                              GDK_ACTION_MOVE | GDK_ACTION_COPY);
1143
1144         g_signal_connect(G_OBJECT (self), "drag_data_get",
1145                          G_CALLBACK(drag_data_get_cb), NULL);
1146 }
1147
1148 static GtkTreePath *
1149 get_selected_row (GtkTreeView *self, GtkTreeModel **model)
1150 {
1151         GtkTreePath *path = NULL;
1152         GtkTreeSelection *sel = NULL;
1153         GList *rows = NULL;
1154
1155         sel   = gtk_tree_view_get_selection(self);
1156         rows = gtk_tree_selection_get_selected_rows (sel, model);
1157
1158         if ((rows == NULL) || (g_list_length(rows) != 1))
1159                 goto frees;
1160
1161         path = gtk_tree_path_copy(g_list_nth_data (rows, 0));
1162
1163
1164         /* Free */
1165  frees:
1166         g_list_foreach(rows,(GFunc) gtk_tree_path_free, NULL);
1167         g_list_free(rows);
1168
1169         return path;
1170 }
1171
1172 /*
1173  * This function moves the tree view scroll to the current selected
1174  * row when the widget grabs the focus
1175  */
1176 static gboolean
1177 on_focus_in (GtkWidget     *self,
1178              GdkEventFocus *event,
1179              gpointer       user_data)
1180 {
1181         GtkTreeSelection *selection;
1182         GtkTreeModel *model;
1183         GList *selected = NULL;
1184         GtkTreePath *selected_path = NULL;
1185
1186         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
1187         if (!model)
1188                 return FALSE;
1189
1190         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
1191         /* If none selected yet, pick the first one */
1192         if (gtk_tree_selection_count_selected_rows (selection) == 0) {
1193                 GtkTreeIter iter;
1194                 GtkTreePath *path;
1195
1196                 /* Return if the model is empty */
1197                 if (!gtk_tree_model_get_iter_first (model, &iter))
1198                         return FALSE;
1199
1200                 path = gtk_tree_model_get_path (model, &iter);
1201                 gtk_tree_selection_select_path (selection, path);
1202                 gtk_tree_path_free (path);
1203         }
1204
1205         /* Need to get the all the rows because is selection multiple */
1206         selected = gtk_tree_selection_get_selected_rows (selection, &model);
1207         if (selected == NULL) return FALSE;
1208         selected_path = (GtkTreePath *) selected->data;
1209
1210         /* Check if we need to scroll */
1211         #if GTK_CHECK_VERSION(2, 8, 0) /* TODO: gtk_tree_view_get_visible_range() is only available in GTK+ 2.8 */
1212         GtkTreePath *start_path = NULL;
1213         GtkTreePath *end_path = NULL;
1214         if (gtk_tree_view_get_visible_range (GTK_TREE_VIEW (self),
1215                                              &start_path,
1216                                              &end_path)) {
1217
1218                 if ((gtk_tree_path_compare (start_path, selected_path) != -1) ||
1219                     (gtk_tree_path_compare (end_path, selected_path) != 1)) {
1220
1221                         /* Scroll to first path */
1222                         gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (self),
1223                                                       selected_path,
1224                                                       NULL,
1225                                                       TRUE,
1226                                                       0.5,
1227                                                       0.0);
1228                 }
1229         }
1230         #endif /* GTK_CHECK_VERSION */
1231
1232         /* Frees */
1233         g_list_foreach (selected, (GFunc) gtk_tree_path_free, NULL);
1234         g_list_free (selected);
1235
1236         return FALSE;
1237 }
1238
1239 static gboolean
1240 idle_notify_added_headers (gpointer data)
1241 {
1242         modest_platform_on_new_msg ();
1243
1244         return FALSE;
1245 }
1246
1247 static void
1248 idle_notify_headers_count_changed_destroy (gpointer data)
1249 {
1250         HeadersCountChangedHelper *helper = NULL;
1251
1252         g_return_if_fail (data != NULL);
1253         helper = (HeadersCountChangedHelper *) data;
1254
1255         g_object_unref (helper->change);
1256         g_slice_free (HeadersCountChangedHelper, helper);
1257 }
1258
1259 static gboolean
1260 idle_notify_headers_count_changed (gpointer data)
1261 {
1262         TnyFolder *folder = NULL;
1263         ModestHeaderViewPrivate *priv = NULL;
1264         HeadersCountChangedHelper *helper = NULL;
1265
1266         g_return_val_if_fail (data != NULL, FALSE);
1267         helper = (HeadersCountChangedHelper *) data;
1268         g_return_val_if_fail (MODEST_IS_HEADER_VIEW(helper->self), FALSE);
1269         g_return_val_if_fail (TNY_FOLDER_CHANGE(helper->change), FALSE);
1270
1271         folder = tny_folder_change_get_folder (helper->change);
1272
1273         priv = MODEST_HEADER_VIEW_GET_PRIVATE (helper->self);
1274         g_mutex_lock (priv->observers_lock);
1275
1276         g_signal_emit (G_OBJECT(helper->self), signals[MSG_COUNT_CHANGED_SIGNAL], 0, folder, helper->change);
1277
1278         g_mutex_unlock (priv->observers_lock);
1279
1280         return FALSE;
1281 }
1282
1283 static void
1284 folder_monitor_update (TnyFolderObserver *self,
1285                        TnyFolderChange *change)
1286 {
1287         TnyFolderChangeChanged changed;
1288         HeadersCountChangedHelper *helper = NULL;
1289
1290         changed = tny_folder_change_get_changed (change);
1291
1292         /* We need an idle because this function is called from within
1293            a thread, so it could cause problems if the modest platform
1294            code calls dbus for example */
1295         if (changed & TNY_FOLDER_CHANGE_CHANGED_ADDED_HEADERS)
1296                 g_idle_add (idle_notify_added_headers, NULL);
1297
1298         /* Check folder count */
1299         if ((changed & TNY_FOLDER_CHANGE_CHANGED_ADDED_HEADERS) ||
1300             (changed & TNY_FOLDER_CHANGE_CHANGED_REMOVED_HEADERS)) {
1301                 helper = g_slice_new0 (HeadersCountChangedHelper);
1302                 helper->self = MODEST_HEADER_VIEW(self);
1303                 helper->change = g_object_ref(change);
1304
1305                 g_idle_add_full (G_PRIORITY_DEFAULT,
1306                                  idle_notify_headers_count_changed,
1307                                  helper,
1308                                  idle_notify_headers_count_changed_destroy);
1309         }
1310 }
1311
1312
1313 static void
1314 _on_new_folder_assigned (const GObject *obj, TnyFolder *folder, gpointer user_data)
1315 {
1316         ModestMainWindow *win = NULL;
1317         gboolean folder_empty = FALSE;
1318
1319         g_return_if_fail (TNY_IS_FOLDER (folder));
1320
1321         if (!MODEST_IS_MAIN_WINDOW (obj)) return;
1322         win = MODEST_MAIN_WINDOW (obj);
1323
1324         /* Check if folder is empty and set headers view contents style */
1325         folder_empty = tny_folder_get_all_count (folder) == 0;
1326         if (folder_empty)  {
1327                 modest_main_window_set_contents_style (win,
1328                                                        MODEST_MAIN_WINDOW_CONTENTS_STYLE_EMPTY);
1329         }
1330         else {
1331                 modest_main_window_set_contents_style (win,
1332                                                        MODEST_MAIN_WINDOW_CONTENTS_STYLE_HEADERS);
1333 /*              modest_widget_memory_restore (conf, G_OBJECT(header_view), */
1334 /*                                            MODEST_CONF_HEADER_VIEW_KEY); */
1335         }
1336
1337 }