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 static void modest_header_view_dispose     (GObject *obj);
  55
  56 static void          on_header_row_activated (GtkTreeView *treeview, GtkTreePath *path,
  57                                               GtkTreeViewColumn *column, gpointer userdata);
  58
  59 static gint          cmp_rows               (GtkTreeModel *tree_model,
  60                                              GtkTreeIter *iter1,
  61                                              GtkTreeIter *iter2,
  62                                              gpointer user_data);
  63
  64 static gint          cmp_subject_rows       (GtkTreeModel *tree_model,
  65                                              GtkTreeIter *iter1,
  66                                              GtkTreeIter *iter2,
  67                                              gpointer user_data);
  68
  69 static gboolean     filter_row             (GtkTreeModel *model,
  70                                             GtkTreeIter *iter,
  71                                             gpointer data);
  72
  73 static void          on_selection_changed   (GtkTreeSelection *sel,
  74                                              gpointer user_data);
  75
  76 static void          setup_drag_and_drop    (GtkTreeView *self);
  77
  78 static GtkTreePath * get_selected_row       (GtkTreeView *self, GtkTreeModel **model);
  79
  80 static gboolean      on_focus_in            (GtkWidget     *sef,
  81                                              GdkEventFocus *event,
  82                                              gpointer       user_data);
  83
  84 static void          folder_monitor_update  (TnyFolderObserver *self,
  85                                              TnyFolderChange *change);
  86
  87 static void          tny_folder_observer_init (TnyFolderObserverIface *klass);
  88
  89 static void          _clipboard_set_selected_data (ModestHeaderView *header_view, gboolean delete);
  90
  91 static void          _clear_hidding_filter (ModestHeaderView *header_view);
  92
  93
  94 typedef struct _ModestHeaderViewPrivate ModestHeaderViewPrivate;
  95 struct _ModestHeaderViewPrivate {
  96         TnyFolder            *folder;
  97         ModestHeaderViewStyle style;
  98
  99         TnyFolderMonitor     *monitor;
 100         GMutex               *observers_lock;
 101
 102         /* not unref this object, its a singlenton */
 103         ModestEmailClipboard *clipboard;
 104
 105         /* Filter tree model */
 106         gchar **hidding_ids;
 107         guint n_selected;
 108
 109         gint                  sort_colid[2][TNY_FOLDER_TYPE_NUM];
 110         gint                  sort_type[2][TNY_FOLDER_TYPE_NUM];
 111
 112
 113 };
 114
 115 typedef struct _HeadersCountChangedHelper HeadersCountChangedHelper;
 116 struct _HeadersCountChangedHelper {
 117         ModestHeaderView *self;
 118         TnyFolderChange  *change;
 119 };
 120
 121
 122 #define MODEST_HEADER_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 123                                                 MODEST_TYPE_HEADER_VIEW, \
 124                                                 ModestHeaderViewPrivate))
 125
 126
 127
 128 #define MODEST_HEADER_VIEW_PTR "modest-header-view"
 129
 130 enum {
 131         HEADER_SELECTED_SIGNAL,
 132         HEADER_ACTIVATED_SIGNAL,
 133         ITEM_NOT_FOUND_SIGNAL,
 134         MSG_COUNT_CHANGED_SIGNAL,
 135         LAST_SIGNAL
 136 };
 137
 138 /* globals */
 139 static GObjectClass *parent_class = NULL;
 140
 141 /* uncomment the following if you have defined any signals */
 142 static guint signals[LAST_SIGNAL] = {0};
 143
 144 GType
 145 modest_header_view_get_type (void)
 146 {
 147         static GType my_type = 0;
 148         if (!my_type) {
 149                 static const GTypeInfo my_info = {
 150                         sizeof(ModestHeaderViewClass),
 151                         NULL,           /* base init */
 152                         NULL,           /* base finalize */
 153                         (GClassInitFunc) modest_header_view_class_init,
 154                         NULL,           /* class finalize */
 155                         NULL,           /* class data */
 156                         sizeof(ModestHeaderView),
 157                         1,              /* n_preallocs */
 158                         (GInstanceInitFunc) modest_header_view_init,
 159                         NULL
 160                 };
 161
 162                 static const GInterfaceInfo tny_folder_observer_info =
 163                 {
 164                         (GInterfaceInitFunc) tny_folder_observer_init, /* interface_init */
 165                         NULL,         /* interface_finalize */
 166                         NULL          /* interface_data */
 167                 };
 168                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
 169                                                   "ModestHeaderView",
 170                                                   &my_info, 0);
 171
 172                 g_type_add_interface_static (my_type, TNY_TYPE_FOLDER_OBSERVER,
 173                                              &tny_folder_observer_info);
 174
 175
 176         }
 177         return my_type;
 178 }
 179
 180 static void
 181 modest_header_view_class_init (ModestHeaderViewClass *klass)
 182 {
 183         GObjectClass *gobject_class;
 184         gobject_class = (GObjectClass*) klass;
 185
 186         parent_class            = g_type_class_peek_parent (klass);
 187         gobject_class->finalize = modest_header_view_finalize;
 188         gobject_class->dispose = modest_header_view_dispose;
 189
 190         g_type_class_add_private (gobject_class, sizeof(ModestHeaderViewPrivate));
 191
 192         signals[HEADER_SELECTED_SIGNAL] =
 193                 g_signal_new ("header_selected",
 194                               G_TYPE_FROM_CLASS (gobject_class),
 195                               G_SIGNAL_RUN_FIRST,
 196                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_selected),
 197                               NULL, NULL,
 198                               g_cclosure_marshal_VOID__POINTER,
 199                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 200
 201         signals[HEADER_ACTIVATED_SIGNAL] =
 202                 g_signal_new ("header_activated",
 203                               G_TYPE_FROM_CLASS (gobject_class),
 204                               G_SIGNAL_RUN_FIRST,
 205                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_activated),
 206                               NULL, NULL,
 207                               g_cclosure_marshal_VOID__POINTER,
 208                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 209
 210
 211         signals[ITEM_NOT_FOUND_SIGNAL] =
 212                 g_signal_new ("item_not_found",
 213                               G_TYPE_FROM_CLASS (gobject_class),
 214                               G_SIGNAL_RUN_FIRST,
 215                               G_STRUCT_OFFSET (ModestHeaderViewClass,item_not_found),
 216                               NULL, NULL,
 217                               g_cclosure_marshal_VOID__INT,
 218                               G_TYPE_NONE, 1, G_TYPE_INT);
 219
 220         signals[MSG_COUNT_CHANGED_SIGNAL] =
 221                 g_signal_new ("msg_count_changed",
 222                               G_TYPE_FROM_CLASS (gobject_class),
 223                               G_SIGNAL_RUN_FIRST,
 224                               G_STRUCT_OFFSET (ModestHeaderViewClass, msg_count_changed),
 225                               NULL, NULL,
 226                               modest_marshal_VOID__POINTER_POINTER,
 227                               G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_POINTER);
 228 }
 229
 230 static void
 231 tny_folder_observer_init (TnyFolderObserverIface *klass)
 232 {
 233         klass->update_func = folder_monitor_update;
 234 }
 235
 236 static GtkTreeViewColumn*
 237 get_new_column (const gchar *name, GtkCellRenderer *renderer,
 238                 gboolean resizable, gint sort_col_id, gboolean show_as_text,
 239                 GtkTreeCellDataFunc cell_data_func, gpointer user_data)
 240 {
 241         GtkTreeViewColumn *column;
 242
 243         column =  gtk_tree_view_column_new_with_attributes(name, renderer, NULL);
 244         gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
 245
 246         gtk_tree_view_column_set_resizable (column, resizable);
 247         if (resizable)
 248                 gtk_tree_view_column_set_expand (column, TRUE);
 249
 250         if (show_as_text)
 251                 gtk_tree_view_column_add_attribute (column, renderer, "text",
 252                                                     sort_col_id);
 253         if (sort_col_id >= 0)
 254                 gtk_tree_view_column_set_sort_column_id (column, sort_col_id);
 255
 256         gtk_tree_view_column_set_sort_indicator (column, FALSE);
 257         gtk_tree_view_column_set_reorderable (column, TRUE);
 258
 259         if (cell_data_func)
 260                 gtk_tree_view_column_set_cell_data_func(column, renderer, cell_data_func,
 261                                                         user_data, NULL);
 262         return column;
 263 }
 264
 265
 266 static void
 267 remove_all_columns (ModestHeaderView *obj)
 268 {
 269         GList *columns, *cursor;
 270
 271         columns = gtk_tree_view_get_columns (GTK_TREE_VIEW(obj));
 272
 273         for (cursor = columns; cursor; cursor = cursor->next)
 274                 gtk_tree_view_remove_column (GTK_TREE_VIEW(obj),
 275                                              GTK_TREE_VIEW_COLUMN(cursor->data));
 276         g_list_free (columns);
 277 }
 278
 279 gboolean
 280 modest_header_view_set_columns (ModestHeaderView *self, const GList *columns, TnyFolderType type)
 281 {
 282         GtkTreeModel *tree_filter, *sortable;
 283         GtkTreeViewColumn *column=NULL;
 284         GtkTreeSelection *selection = NULL;
 285         GtkCellRenderer *renderer_msgtype,*renderer_header,
 286                 *renderer_attach, *renderer_compact_date;
 287         GtkCellRenderer *renderer_compact_header, *renderer_recpt_box,
 288                 *renderer_subject, *renderer_subject_box, *renderer_recpt,
 289                 *renderer_priority;
 290         ModestHeaderViewPrivate *priv;
 291         GtkTreeViewColumn *compact_column = NULL;
 292         const GList *cursor;
 293
 294         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 295
 296         /* FIXME: check whether these renderers need to be freed */
 297         renderer_msgtype = gtk_cell_renderer_pixbuf_new ();
 298         renderer_attach  = gtk_cell_renderer_pixbuf_new ();
 299         renderer_priority  = gtk_cell_renderer_pixbuf_new ();
 300         renderer_header  = gtk_cell_renderer_text_new ();
 301
 302         renderer_compact_header = modest_vbox_cell_renderer_new ();
 303         renderer_recpt_box = modest_hbox_cell_renderer_new ();
 304         renderer_subject_box = modest_hbox_cell_renderer_new ();
 305         renderer_recpt = gtk_cell_renderer_text_new ();
 306         renderer_subject = gtk_cell_renderer_text_new ();
 307         renderer_compact_date  = gtk_cell_renderer_text_new ();
 308
 309         modest_vbox_cell_renderer_append (MODEST_VBOX_CELL_RENDERER (renderer_compact_header), renderer_subject_box, FALSE);
 310         g_object_set_data (G_OBJECT (renderer_compact_header), "subject-box-renderer", renderer_subject_box);
 311         modest_vbox_cell_renderer_append (MODEST_VBOX_CELL_RENDERER (renderer_compact_header), renderer_recpt_box, FALSE);
 312         g_object_set_data (G_OBJECT (renderer_compact_header), "recpt-box-renderer", renderer_recpt_box);
 313         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_subject_box), renderer_priority, FALSE);
 314         g_object_set_data (G_OBJECT (renderer_subject_box), "priority-renderer", renderer_priority);
 315         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_subject_box), renderer_subject, TRUE);
 316         g_object_set_data (G_OBJECT (renderer_subject_box), "subject-renderer", renderer_subject);
 317         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_recpt_box), renderer_attach, FALSE);
 318         g_object_set_data (G_OBJECT (renderer_recpt_box), "attach-renderer", renderer_attach);
 319         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_recpt_box), renderer_recpt, TRUE);
 320         g_object_set_data (G_OBJECT (renderer_recpt_box), "recipient-renderer", renderer_recpt);
 321         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_recpt_box), renderer_compact_date, FALSE);
 322         g_object_set_data (G_OBJECT (renderer_recpt_box), "date-renderer", renderer_compact_date);
 323
 324         g_object_set(G_OBJECT(renderer_header),
 325                      "ellipsize", PANGO_ELLIPSIZE_END,
 326                      NULL);
 327         g_object_set (G_OBJECT (renderer_subject),
 328                       "ellipsize", PANGO_ELLIPSIZE_END,
 329                       NULL);
 330         g_object_set (G_OBJECT (renderer_recpt),
 331                       "ellipsize", PANGO_ELLIPSIZE_END,
 332                       NULL);
 333         g_object_set(G_OBJECT(renderer_compact_date),
 334                      "xalign", 1.0,
 335                      NULL);
 336
 337         gtk_cell_renderer_set_fixed_size (renderer_attach, 32, 32);
 338         gtk_cell_renderer_set_fixed_size (renderer_priority, 32, 32);
 339
 340         remove_all_columns (self);
 341
 342         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 343         gtk_tree_selection_set_mode(selection, GTK_SELECTION_MULTIPLE);
 344 /*      sortable = gtk_tree_view_get_model (GTK_TREE_VIEW (self)); */
 345         tree_filter = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 346         sortable = gtk_tree_model_filter_get_model (GTK_TREE_MODEL_FILTER(tree_filter));
 347
 348         /* Add new columns */
 349         for (cursor = columns; cursor; cursor = g_list_next(cursor)) {
 350                 ModestHeaderViewColumn col =
 351                         (ModestHeaderViewColumn) GPOINTER_TO_INT(cursor->data);
 352
 353                 if (0> col || col >= MODEST_HEADER_VIEW_COLUMN_NUM) {
 354                         g_printerr ("modest: invalid column %d in column list\n", col);
 355                         continue;
 356                 }
 357
 358                 switch (col) {
 359
 360                 case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
 361                         column = get_new_column (_("M"), renderer_msgtype, FALSE,
 362                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 363                                                  FALSE,
 364                                                  (GtkTreeCellDataFunc)_modest_header_view_msgtype_cell_data,
 365                                                  NULL);
 366                         gtk_tree_view_column_set_fixed_width (column, 45);
 367                         break;
 368
 369                 case MODEST_HEADER_VIEW_COLUMN_ATTACH:
 370                         column = get_new_column (_("A"), renderer_attach, FALSE,
 371                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 372                                                  FALSE,
 373                                                  (GtkTreeCellDataFunc)_modest_header_view_attach_cell_data,
 374                                                  NULL);
 375                         gtk_tree_view_column_set_fixed_width (column, 45);
 376                         break;
 377
 378
 379                 case MODEST_HEADER_VIEW_COLUMN_FROM:
 380                         column = get_new_column (_("From"), renderer_header, TRUE,
 381                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 382                                                  TRUE,
 383                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 384                                                  GINT_TO_POINTER(TRUE));
 385                         break;
 386
 387                 case MODEST_HEADER_VIEW_COLUMN_TO:
 388                         column = get_new_column (_("To"), renderer_header, TRUE,
 389                                                  TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN,
 390                                                  TRUE,
 391                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 392                                                  GINT_TO_POINTER(FALSE));
 393                         break;
 394
 395                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 396                         column = get_new_column (_("Header"), renderer_compact_header, TRUE,
 397                                                      TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 398                                                      FALSE,
 399                                                      (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 400                                                      GINT_TO_POINTER(TRUE));
 401                         compact_column = column;
 402                         break;
 403
 404                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
 405                         column = get_new_column (_("Header"), renderer_compact_header, TRUE,
 406                                                      TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 407                                                      FALSE,
 408                                                      (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 409                                                      GINT_TO_POINTER(FALSE));
 410                         compact_column = column;
 411                         break;
 412
 413
 414                 case MODEST_HEADER_VIEW_COLUMN_SUBJECT:
 415                         column = get_new_column (_("Subject"), renderer_header, TRUE,
 416                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 417                                                  TRUE,
 418                                                  (GtkTreeCellDataFunc)_modest_header_view_header_cell_data,
 419                                                  NULL);
 420                         break;
 421
 422                 case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
 423                         column = get_new_column (_("Received"), renderer_header, TRUE,
 424                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 425                                                  TRUE,
 426                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 427                                                  GINT_TO_POINTER(TRUE));
 428                         break;
 429
 430                 case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
 431                         column = get_new_column (_("Sent"), renderer_header, TRUE,
 432                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 433                                                  TRUE,
 434                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 435                                                  GINT_TO_POINTER(FALSE));
 436                         break;
 437
 438                 case MODEST_HEADER_VIEW_COLUMN_SIZE:
 439                         column = get_new_column (_("Size"), renderer_header, TRUE,
 440                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 441                                                  FALSE,
 442                                                  (GtkTreeCellDataFunc)_modest_header_view_size_cell_data,
 443                                                  NULL);
 444                         break;
 445                 case MODEST_HEADER_VIEW_COLUMN_STATUS:
 446                         column = get_new_column (_("Status"), renderer_compact_date, TRUE,
 447                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 448                                                  FALSE,
 449                                                  (GtkTreeCellDataFunc)_modest_header_view_status_cell_data,
 450                                                  NULL);
 451                         break;
 452
 453                 default:
 454                         g_return_val_if_reached(FALSE);
 455                 }
 456
 457                 /* we keep the column id around */
 458                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_COLUMN,
 459                                    GINT_TO_POINTER(col));
 460
 461                 /* we need this ptr when sorting the rows */
 462                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_PTR,
 463                                    self);
 464                 gtk_tree_view_append_column (GTK_TREE_VIEW(self), column);
 465         }
 466
 467         if (sortable) {
 468                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 469                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 470                                                  (GtkTreeIterCompareFunc) cmp_rows,
 471                                                  compact_column, NULL);
 472                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE (sortable),
 473                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 474                                                  (GtkTreeIterCompareFunc) cmp_subject_rows,
 475                                                  compact_column, NULL);
 476         }
 477
 478
 479         return TRUE;
 480 }
 481
 482 static void
 483 modest_header_view_init (ModestHeaderView *obj)
 484 {
 485         ModestHeaderViewPrivate *priv;
 486         guint i, j;
 487
 488         priv = MODEST_HEADER_VIEW_GET_PRIVATE(obj);
 489
 490         priv->folder  = NULL;
 491
 492         priv->monitor        = NULL;
 493         priv->observers_lock = g_mutex_new ();
 494
 495         priv->clipboard = modest_runtime_get_email_clipboard ();
 496         priv->hidding_ids = NULL;
 497         priv->n_selected = 0;
 498
 499         /* Sort parameters */
 500         for (j=0; j < 2; j++) {
 501                 for (i=0; i < TNY_FOLDER_TYPE_NUM; i++) {
 502                         priv->sort_colid[j][i] = -1;
 503                         priv->sort_type[j][i] = GTK_SORT_DESCENDING;
 504                 }
 505         }
 506
 507         setup_drag_and_drop (GTK_TREE_VIEW (obj));
 508 }
 509
 510 static void
 511 modest_header_view_dispose (GObject *obj)
 512 {
 513         ModestHeaderView        *self;
 514         ModestHeaderViewPrivate *priv;
 515
 516         self = MODEST_HEADER_VIEW(obj);
 517         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 518
 519         if (priv->folder) {
 520                 tny_folder_remove_observer (priv->folder, TNY_FOLDER_OBSERVER (obj));
 521                 g_object_unref (G_OBJECT (priv->folder));
 522                 priv->folder   = NULL;
 523         }
 524
 525         G_OBJECT_CLASS(parent_class)->dispose (obj);
 526 }
 527
 528 static void
 529 modest_header_view_finalize (GObject *obj)
 530 {
 531         ModestHeaderView        *self;
 532         ModestHeaderViewPrivate *priv;
 533
 534         self = MODEST_HEADER_VIEW(obj);
 535         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 536
 537         g_mutex_lock (priv->observers_lock);
 538         if (priv->monitor) {
 539                 tny_folder_monitor_stop (priv->monitor);
 540                 g_object_unref (G_OBJECT (priv->monitor));
 541         }
 542         g_mutex_unlock (priv->observers_lock);
 543         g_mutex_free (priv->observers_lock);
 544
 545         /* Clear hidding array created by cut operation */
 546         _clear_hidding_filter (MODEST_HEADER_VIEW (obj));
 547
 548         G_OBJECT_CLASS(parent_class)->finalize (obj);
 549 }
 550
 551
 552 GtkWidget*
 553 modest_header_view_new (TnyFolder *folder, ModestHeaderViewStyle style)
 554 {
 555         GObject *obj;
 556         GtkTreeSelection *sel;
 557         ModestHeaderView *self;
 558         ModestHeaderViewPrivate *priv;
 559
 560         g_return_val_if_fail (style >= 0 && style < MODEST_HEADER_VIEW_STYLE_NUM,
 561                               NULL);
 562
 563         obj  = G_OBJECT(g_object_new(MODEST_TYPE_HEADER_VIEW, NULL));
 564         self = MODEST_HEADER_VIEW(obj);
 565         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 566
 567         modest_header_view_set_style   (self, style);
 568 /*      modest_header_view_set_folder (self, NULL, NULL, NULL); */
 569
 570         gtk_tree_view_columns_autosize (GTK_TREE_VIEW(obj));
 571         gtk_tree_view_set_fixed_height_mode (GTK_TREE_VIEW(obj),TRUE);
 572         gtk_tree_view_set_enable_search (GTK_TREE_VIEW(obj), TRUE);
 573
 574         gtk_tree_view_set_rules_hint (GTK_TREE_VIEW(obj),
 575                                       TRUE); /* alternating row colors */
 576         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 577
 578         g_signal_connect (sel, "changed",
 579                           G_CALLBACK(on_selection_changed), self);
 580
 581         g_signal_connect (self, "row-activated",
 582                           G_CALLBACK (on_header_row_activated), NULL);
 583
 584         g_signal_connect (self, "focus-in-event",
 585                           G_CALLBACK(on_focus_in), NULL);
 586
 587         return GTK_WIDGET(self);
 588 }
 589
 590
 591 guint
 592 modest_header_view_count_selected_headers (ModestHeaderView *self)
 593 {
 594         GtkTreeSelection *sel;
 595         guint selected_rows;
 596
 597         g_return_val_if_fail (self, 0);
 598
 599         /* Get selection object and check selected rows count */
 600         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 601         selected_rows = gtk_tree_selection_count_selected_rows (sel);
 602
 603         return selected_rows;
 604 }
 605
 606 gboolean
 607 modest_header_view_has_selected_headers (ModestHeaderView *self)
 608 {
 609         GtkTreeSelection *sel;
 610         gboolean empty;
 611
 612         g_return_val_if_fail (self, FALSE);
 613
 614         /* Get selection object and check selected rows count */
 615         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 616         empty = gtk_tree_selection_count_selected_rows (sel) == 0;
 617
 618         return !empty;
 619 }
 620
 621
 622 TnyList *
 623 modest_header_view_get_selected_headers (ModestHeaderView *self)
 624 {
 625         GtkTreeSelection *sel;
 626         ModestHeaderViewPrivate *priv;
 627         TnyList *header_list = NULL;
 628         TnyHeader *header;
 629         GList *list, *tmp = NULL;
 630         GtkTreeModel *tree_model = NULL;
 631         GtkTreeIter iter;
 632
 633         g_return_val_if_fail (self, NULL);
 634
 635         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 636
 637         /* Get selected rows */
 638         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 639         list = gtk_tree_selection_get_selected_rows (sel, &tree_model);
 640
 641         if (list) {
 642                 header_list = tny_simple_list_new();
 643
 644                 list = g_list_reverse (list);
 645                 tmp = list;
 646                 while (tmp) {
 647                         /* get header from selection */
 648                         gtk_tree_model_get_iter (tree_model, &iter, (GtkTreePath *) (tmp->data));
 649                         gtk_tree_model_get (tree_model, &iter,
 650                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 651                                             &header, -1);
 652                         /* Prepend to list */
 653                         tny_list_prepend (header_list, G_OBJECT (header));
 654                         g_object_unref (G_OBJECT (header));
 655
 656                         tmp = g_list_next (tmp);
 657                 }
 658                 /* Clean up*/
 659                 g_list_foreach (list, (GFunc) gtk_tree_path_free, NULL);
 660                 g_list_free (list);
 661         }
 662         return header_list;
 663 }
 664
 665
 666 /* scroll our list view so the selected item is visible */
 667 static void
 668 scroll_to_selected (ModestHeaderView *self, GtkTreeIter *iter, gboolean up)
 669 {
 670 #ifdef MODEST_PLATFORM_GNOME
 671
 672         GtkTreePath *selected_path;
 673         GtkTreePath *start, *end;
 674
 675         GtkTreeModel *model;
 676
 677         model         = gtk_tree_view_get_model (GTK_TREE_VIEW(self));
 678         selected_path = gtk_tree_model_get_path (model, iter);
 679
 680         start = gtk_tree_path_new ();
 681         end   = gtk_tree_path_new ();
 682
 683         gtk_tree_view_get_visible_range (GTK_TREE_VIEW(self), &start, &end);
 684
 685         if (gtk_tree_path_compare (selected_path, start) < 0 ||
 686             gtk_tree_path_compare (end, selected_path) < 0)
 687                 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW(self),
 688                                               selected_path, NULL, TRUE,
 689                                               up ? 0.0 : 1.0,
 690                                               up ? 0.0 : 1.0);
 691         gtk_tree_path_free (selected_path);
 692         gtk_tree_path_free (start);
 693         gtk_tree_path_free (end);
 694
 695 #endif /* MODEST_PLATFORM_GNOME */
 696 }
 697
 698
 699 void
 700 modest_header_view_select_next (ModestHeaderView *self)
 701 {
 702         GtkTreeSelection *sel;
 703         GtkTreeIter iter;
 704         GtkTreeModel *model;
 705         GtkTreePath *path;
 706
 707         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 708         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 709         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 710                 /* Unselect previous path */
 711                 gtk_tree_selection_unselect_path (sel, path);
 712
 713                 /* Move path down and selects new one  */
 714                 if (gtk_tree_model_iter_next (model, &iter)) {
 715                         gtk_tree_selection_select_iter (sel, &iter);
 716                         scroll_to_selected (self, &iter, FALSE);
 717                 }
 718                 gtk_tree_path_free(path);
 719         }
 720
 721 }
 722
 723 void
 724 modest_header_view_select_prev (ModestHeaderView *self)
 725 {
 726         GtkTreeSelection *sel;
 727         GtkTreeIter iter;
 728         GtkTreeModel *model;
 729         GtkTreePath *path;
 730
 731         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 732         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 733         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 734                 /* Unselect previous path */
 735                 gtk_tree_selection_unselect_path (sel, path);
 736
 737                 /* Move path up */
 738                 if (gtk_tree_path_prev (path)) {
 739                         gtk_tree_model_get_iter (model, &iter, path);
 740
 741                         /* Select the new one */
 742                         gtk_tree_selection_select_iter (sel, &iter);
 743                         scroll_to_selected (self, &iter, TRUE);
 744
 745                 }
 746                 gtk_tree_path_free (path);
 747         }
 748 }
 749
 750 GList*
 751 modest_header_view_get_columns (ModestHeaderView *self)
 752 {
 753         g_return_val_if_fail (self, FALSE);
 754         return gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 755 }
 756
 757
 758 gboolean
 759 modest_header_view_is_empty (ModestHeaderView *self)
 760 {
 761         g_return_val_if_fail (self, FALSE);
 762         return FALSE; /* FIXME */
 763 }
 764
 765
 766 gboolean
 767 modest_header_view_set_style (ModestHeaderView *self,
 768                               ModestHeaderViewStyle style)
 769 {
 770         ModestHeaderViewPrivate *priv;
 771         gboolean show_col_headers = FALSE;
 772         ModestHeaderViewStyle old_style;
 773
 774         g_return_val_if_fail (self, FALSE);
 775         g_return_val_if_fail (style >= 0 && MODEST_HEADER_VIEW_STYLE_NUM,
 776                               FALSE);
 777
 778         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 779         if (priv->style == style)
 780                 return TRUE; /* nothing to do */
 781
 782         switch (style) {
 783         case MODEST_HEADER_VIEW_STYLE_DETAILS:
 784                 show_col_headers = TRUE;
 785                 break;
 786         case MODEST_HEADER_VIEW_STYLE_TWOLINES:
 787                 break;
 788         default:
 789                 g_return_val_if_reached (FALSE);
 790         }
 791         gtk_tree_view_set_headers_visible   (GTK_TREE_VIEW(self), show_col_headers);
 792         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(self), show_col_headers);
 793
 794         old_style   = priv->style;
 795         priv->style = style;
 796
 797         return TRUE;
 798 }
 799
 800
 801 ModestHeaderViewStyle
 802 modest_header_view_get_style (ModestHeaderView *self)
 803 {
 804         g_return_val_if_fail (self, FALSE);
 805         return MODEST_HEADER_VIEW_GET_PRIVATE(self)->style;
 806 }
 807
 808 /*
 809  * This function sets a sortable model in the header view. It's just
 810  * used for developing purposes, because it only does a
 811  * gtk_tree_view_set_model
 812  */
 813 static void
 814 modest_header_view_set_model (GtkTreeView *header_view, GtkTreeModel *model)
 815 {
 816 /*      GtkTreeModel *old_model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view)); */
 817 /*      if (old_model_sort && GTK_IS_TREE_MODEL_SORT (old_model_sort)) { */
 818 /*              GtkTreeModel *old_model; */
 819 /*              ModestHeaderViewPrivate *priv; */
 820 /*              priv = MODEST_HEADER_VIEW_GET_PRIVATE (header_view); */
 821 /*              old_model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (old_model_sort)); */
 822
 823 /*              /\* Set new model *\/ */
 824 /*              gtk_tree_view_set_model (header_view, model); */
 825 /*      } else */
 826         gtk_tree_view_set_model (header_view, model);
 827 }
 828
 829 TnyFolder*
 830 modest_header_view_get_folder (ModestHeaderView *self)
 831 {
 832         ModestHeaderViewPrivate *priv;
 833         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 834
 835         if (priv->folder)
 836                 g_object_ref (priv->folder);
 837
 838         return priv->folder;
 839 }
 840
 841 static void
 842 modest_header_view_set_folder_intern (ModestHeaderView *self, TnyFolder *folder)
 843 {
 844         TnyFolderType type;
 845         TnyList *headers;
 846         ModestHeaderViewPrivate *priv;
 847         GList *cols, *cursor;
 848         GtkTreeModel *filter_model, *sortable;
 849         guint sort_colid;
 850         GtkSortType sort_type;
 851
 852         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 853
 854         headers = TNY_LIST (tny_gtk_header_list_model_new ());
 855
 856         tny_gtk_header_list_model_set_folder (TNY_GTK_HEADER_LIST_MODEL(headers),
 857                                               folder, FALSE);
 858
 859         /* Add IDLE observer (monitor) and another folder observer for
 860            new messages (self) */
 861         g_mutex_lock (priv->observers_lock);
 862         if (priv->monitor) {
 863                 tny_folder_monitor_stop (priv->monitor);
 864                 g_object_unref (G_OBJECT (priv->monitor));
 865         }
 866         priv->monitor = TNY_FOLDER_MONITOR (tny_folder_monitor_new (folder));
 867         tny_folder_monitor_add_list (priv->monitor, TNY_LIST (headers));
 868         tny_folder_monitor_start (priv->monitor);
 869         tny_folder_add_observer (folder, TNY_FOLDER_OBSERVER (self));
 870         g_mutex_unlock (priv->observers_lock);
 871
 872         sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(headers));
 873         g_object_unref (G_OBJECT (headers));
 874
 875         /* Create a tree model filter to hide and show rows for cut operations  */
 876         filter_model = gtk_tree_model_filter_new (sortable, NULL);
 877         gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (filter_model),
 878                                                 filter_row,
 879                                                 self,
 880                                                 NULL);
 881         g_object_unref (G_OBJECT (sortable));
 882
 883         /* install our special sorting functions */
 884         cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 885
 886         /* Restore sort column id */
 887         if (cols) {
 888                 type  = modest_tny_folder_guess_folder_type (folder);
 889                 sort_colid = modest_header_view_get_sort_column_id (self, type);
 890                 sort_type = modest_header_view_get_sort_type (self, type);
 891                 gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 892                                                       sort_colid,
 893                                                       sort_type);
 894                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 895                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 896                                                  (GtkTreeIterCompareFunc) cmp_rows,
 897                                                  cols->data, NULL);
 898                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 899                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 900                                                  (GtkTreeIterCompareFunc) cmp_subject_rows,
 901                                                  cols->data, NULL);
 902         }
 903
 904         /* Set new model */
 905         modest_header_view_set_model (GTK_TREE_VIEW (self), filter_model);
 906         g_object_unref (G_OBJECT (filter_model));
 907 /*      modest_header_view_set_model (GTK_TREE_VIEW (self), sortable); */
 908 /*      g_object_unref (G_OBJECT (sortable)); */
 909
 910         /* Free */
 911         g_list_free (cols);
 912 }
 913
 914 void
 915 modest_header_view_sort_by_column_id (ModestHeaderView *self,
 916                                       guint sort_colid,
 917                                       GtkSortType sort_type)
 918 {
 919         ModestHeaderViewPrivate *priv = NULL;
 920         GtkTreeModel *tree_filter, *sortable = NULL;
 921         TnyFolderType type;
 922
 923         /* Get model and private data */
 924         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 925         tree_filter = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 926         sortable = gtk_tree_model_filter_get_model (GTK_TREE_MODEL_FILTER(tree_filter));
 927 /*      sortable = gtk_tree_view_get_model (GTK_TREE_VIEW (self)); */
 928
 929         /* Sort tree model */
 930         type  = modest_tny_folder_guess_folder_type (priv->folder);
 931         gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 932                                               sort_colid,
 933                                               sort_type);
 934         /* Store new sort parameters */
 935         modest_header_view_set_sort_params (self, sort_colid, sort_type, type);
 936
 937         /* Save GConf parameters */
 938 /*      modest_widget_memory_save (modest_runtime_get_conf(), */
 939 /*                                 G_OBJECT(self), "header-view"); */
 940
 941 }
 942
 943 void
 944 modest_header_view_set_sort_params (ModestHeaderView *self,
 945                                     guint sort_colid,
 946                                     GtkSortType sort_type,
 947                                     TnyFolderType type)
 948 {
 949         ModestHeaderViewPrivate *priv;
 950         ModestHeaderViewStyle style;
 951
 952         style = modest_header_view_get_style   (self);
 953         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 954
 955         priv->sort_colid[style][type] = sort_colid;
 956         priv->sort_type[style][type] = sort_type;
 957 }
 958
 959 gint
 960 modest_header_view_get_sort_column_id (ModestHeaderView *self,
 961                                        TnyFolderType type)
 962 {
 963         ModestHeaderViewPrivate *priv;
 964         ModestHeaderViewStyle style;
 965
 966         style = modest_header_view_get_style   (self);
 967         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 968
 969         return priv->sort_colid[style][type];
 970 }
 971
 972 GtkSortType
 973 modest_header_view_get_sort_type (ModestHeaderView *self,
 974                                   TnyFolderType type)
 975 {
 976         ModestHeaderViewPrivate *priv;
 977         ModestHeaderViewStyle style;
 978
 979         style = modest_header_view_get_style   (self);
 980         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 981
 982         return priv->sort_type[style][type];
 983 }
 984
 985 void
 986 modest_header_view_set_folder (ModestHeaderView *self,
 987                                TnyFolder *folder,
 988                                RefreshAsyncUserCallback callback,
 989                                gpointer user_data)
 990 {
 991         ModestHeaderViewPrivate *priv;
 992         ModestWindowMgr *mgr = NULL;
 993         GObject *source = NULL;
 994
 995         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 996
 997         if (priv->folder) {
 998                 g_mutex_lock (priv->observers_lock);
 999                 tny_folder_remove_observer (priv->folder, TNY_FOLDER_OBSERVER (self));
1000                 g_object_unref (priv->folder);
1001                 priv->folder = NULL;
1002                 g_mutex_unlock (priv->observers_lock);
1003         }
1004
1005         if (folder) {
1006                 ModestMailOperation *mail_op = NULL;
1007
1008                 /* Get main window to use it as source of mail operation */
1009                 mgr = modest_runtime_get_window_mgr ();
1010                 source = G_OBJECT (modest_window_mgr_get_main_window (modest_runtime_get_window_mgr ()));
1011
1012                 /* Set folder in the model */
1013                 modest_header_view_set_folder_intern (self, folder);
1014
1015                 /* Pick my reference. Nothing to do with the mail operation */
1016                 priv->folder = g_object_ref (folder);
1017
1018                 /* no message selected */
1019                 g_signal_emit (G_OBJECT(self), signals[HEADER_SELECTED_SIGNAL], 0, NULL);
1020
1021                 /* Create the mail operation (source will be the parent widget) */
1022                 mail_op = modest_mail_operation_new (MODEST_MAIL_OPERATION_TYPE_RECEIVE, source);
1023                 modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
1024                                                  mail_op);
1025
1026                 /* Refresh the folder asynchronously */
1027                 modest_mail_operation_refresh_folder (mail_op, folder,
1028                                                       callback,
1029                                                       user_data);
1030
1031                 /* Free */
1032                 g_object_unref (mail_op);
1033         } else {
1034                 g_mutex_lock (priv->observers_lock);
1035
1036                 if (priv->monitor) {
1037                         tny_folder_monitor_stop (priv->monitor);
1038                         g_object_unref (G_OBJECT (priv->monitor));
1039                         priv->monitor = NULL;
1040                 }
1041                 modest_header_view_set_model (GTK_TREE_VIEW (self), NULL);
1042
1043                 g_mutex_unlock (priv->observers_lock);
1044         }
1045 }
1046
1047 static void
1048 on_header_row_activated (GtkTreeView *treeview, GtkTreePath *path,
1049                          GtkTreeViewColumn *column, gpointer userdata)
1050 {
1051         ModestHeaderView *self = NULL;
1052         ModestHeaderViewPrivate *priv = NULL;
1053         GtkTreeIter iter;
1054         GtkTreeModel *model = NULL;
1055         TnyHeader *header;
1056
1057         self = MODEST_HEADER_VIEW (treeview);
1058         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
1059
1060         model = gtk_tree_view_get_model (treeview);
1061
1062         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
1063                 return;
1064
1065         /* get the first selected item */
1066         gtk_tree_model_get (model, &iter,
1067                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
1068                             &header, -1);
1069         /* Emit signal */
1070         g_signal_emit (G_OBJECT(self),
1071                        signals[HEADER_ACTIVATED_SIGNAL],
1072                        0, header);
1073
1074         /* Free */
1075         g_object_unref (G_OBJECT (header));
1076
1077 }
1078
1079 static void
1080 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
1081 {
1082         GtkTreeModel *model;
1083         TnyHeader *header;
1084         GtkTreePath *path = NULL;
1085         GtkTreeIter iter;
1086         ModestHeaderView *self;
1087         ModestHeaderViewPrivate *priv;
1088         GList *selected = NULL;
1089
1090         g_return_if_fail (sel);
1091         g_return_if_fail (user_data);
1092
1093         self = MODEST_HEADER_VIEW (user_data);
1094         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
1095
1096         selected = gtk_tree_selection_get_selected_rows (sel, &model);
1097         if (selected != NULL)
1098                 path = (GtkTreePath *) selected->data;
1099         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
1100                 return; /* msg was _un_selected */
1101
1102         gtk_tree_model_get (model, &iter,
1103                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
1104                             &header, -1);
1105
1106         /* Emit signal */
1107         g_signal_emit (G_OBJECT(self),
1108                        signals[HEADER_SELECTED_SIGNAL],
1109                        0, header);
1110
1111         g_object_unref (G_OBJECT (header));
1112         gtk_tree_path_free(path);
1113 }
1114
1115
1116 /* PROTECTED method. It's useful when we want to force a given
1117    selection to reload a msg. For example if we have selected a header
1118    in offline mode, when Modest become online, we want to reload the
1119    message automatically without an user click over the header */
1120 void
1121 _modest_header_view_change_selection (GtkTreeSelection *selection,
1122                                       gpointer user_data)
1123 {
1124         g_return_if_fail (GTK_IS_TREE_SELECTION (selection));
1125         g_return_if_fail (MODEST_IS_HEADER_VIEW (user_data));
1126
1127         on_selection_changed (selection, user_data);
1128 }
1129
1130 static gint compare_priorities (TnyHeaderFlags p1, TnyHeaderFlags p2)
1131 {
1132         p1 = p1 & TNY_HEADER_FLAG_PRIORITY;
1133         p2 = p2 & TNY_HEADER_FLAG_PRIORITY;
1134         if (p1 == 0)
1135                 p1 = TNY_HEADER_FLAG_LOW_PRIORITY + 1;
1136         if (p2 == 0)
1137                 p2 = TNY_HEADER_FLAG_LOW_PRIORITY + 1;
1138         return p1 - p2;
1139 }
1140
1141 static gint
1142 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
1143           gpointer user_data)
1144 {
1145         gint col_id;
1146         gint t1, t2;
1147         gint val1, val2;
1148         gint cmp;
1149 /*      static int counter = 0; */
1150
1151         g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN(user_data), 0);
1152 /*      col_id = gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (tree_model)); */
1153         col_id = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(user_data), MODEST_HEADER_VIEW_FLAG_SORT));
1154
1155
1156         switch (col_id) {
1157         case TNY_HEADER_FLAG_ATTACHMENTS:
1158
1159                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1160                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1, -1);
1161                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1162                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2, -1);
1163
1164                 cmp = (val1 & TNY_HEADER_FLAG_ATTACHMENTS) -
1165                         (val2 & TNY_HEADER_FLAG_ATTACHMENTS);
1166
1167                 return cmp ? cmp : t1 - t2;
1168
1169         case TNY_HEADER_FLAG_PRIORITY:
1170                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1171                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,-1);
1172                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1173                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,-1);
1174
1175                 /* This is for making priority values respect the intuitive sort relationship
1176                  * as HIGH is 11, LOW is 01, and we put NORMAL AS 10 (2) */
1177                 cmp =  compare_priorities (val1, val2);
1178
1179                 return cmp ? cmp : t1 - t2;
1180
1181         default:
1182                 return &iter1 - &iter2; /* oughhhh  */
1183         }
1184 }
1185
1186 static gint
1187 cmp_subject_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
1188                   gpointer user_data)
1189 {
1190         gint t1, t2;
1191         gchar *val1, *val2;
1192         gint cmp;
1193 /*      static int counter = 0; */
1194
1195         g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN(user_data), 0);
1196
1197         gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &val1,
1198                             TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1, -1);
1199         gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &val2,
1200                             TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2, -1);
1201
1202         cmp = modest_text_utils_utf8_strcmp (val1 + modest_text_utils_get_subject_prefix_len(val1),
1203                                              val2 + modest_text_utils_get_subject_prefix_len(val2),
1204                                              TRUE);
1205         g_free (val1);
1206         g_free (val2);
1207         return cmp;
1208 }
1209
1210 /* Drag and drop stuff */
1211 static void
1212 drag_data_get_cb (GtkWidget *widget, GdkDragContext *context,
1213                   GtkSelectionData *selection_data,
1214                   guint info,  guint time, gpointer data)
1215 {
1216         GtkTreeModel *model = NULL;
1217         GtkTreeIter iter;
1218         GtkTreePath *source_row = NULL;
1219
1220         source_row = get_selected_row (GTK_TREE_VIEW (widget), &model);
1221         if ((source_row == NULL) || (!gtk_tree_model_get_iter(model, &iter, source_row))) return;
1222
1223         switch (info) {
1224         case MODEST_HEADER_ROW:
1225                 gtk_tree_set_row_drag_data (selection_data, model, source_row);
1226                 break;
1227         case MODEST_MSG: {
1228                 TnyHeader *hdr;
1229                 gtk_tree_model_get (model, &iter,
1230                                     TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN, &hdr,
1231                                     -1);
1232                 if (hdr) {
1233                         g_object_unref (G_OBJECT(hdr));
1234                 }
1235                 break;
1236         }
1237         default:
1238                 g_message ("%s: default switch case.", __FUNCTION__);
1239         }
1240
1241         gtk_tree_path_free (source_row);
1242 }
1243
1244 /* Header view drag types */
1245 const GtkTargetEntry header_view_drag_types[] = {
1246         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP, MODEST_HEADER_ROW },
1247         { "text/uri-list",      0,                   MODEST_MSG },
1248 };
1249
1250 static void
1251 setup_drag_and_drop (GtkTreeView *self)
1252 {
1253         gtk_drag_source_set (GTK_WIDGET (self),
1254                              GDK_BUTTON1_MASK,
1255                              header_view_drag_types,
1256                              G_N_ELEMENTS (header_view_drag_types),
1257                              GDK_ACTION_MOVE | GDK_ACTION_COPY);
1258
1259         g_signal_connect(G_OBJECT (self), "drag_data_get",
1260                          G_CALLBACK(drag_data_get_cb), NULL);
1261 }
1262
1263 static GtkTreePath *
1264 get_selected_row (GtkTreeView *self, GtkTreeModel **model)
1265 {
1266         GtkTreePath *path = NULL;
1267         GtkTreeSelection *sel = NULL;
1268         GList *rows = NULL;
1269
1270         sel   = gtk_tree_view_get_selection(self);
1271         rows = gtk_tree_selection_get_selected_rows (sel, model);
1272
1273         if ((rows == NULL) || (g_list_length(rows) != 1))
1274                 goto frees;
1275
1276         path = gtk_tree_path_copy(g_list_nth_data (rows, 0));
1277
1278
1279         /* Free */
1280  frees:
1281         g_list_foreach(rows,(GFunc) gtk_tree_path_free, NULL);
1282         g_list_free(rows);
1283
1284         return path;
1285 }
1286
1287 /*
1288  * This function moves the tree view scroll to the current selected
1289  * row when the widget grabs the focus
1290  */
1291 static gboolean
1292 on_focus_in (GtkWidget     *self,
1293              GdkEventFocus *event,
1294              gpointer       user_data)
1295 {
1296         GtkTreeSelection *selection;
1297         GtkTreeModel *model;
1298         GList *selected = NULL;
1299         GtkTreePath *selected_path = NULL;
1300
1301         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
1302         if (!model)
1303                 return FALSE;
1304
1305         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
1306         /* If none selected yet, pick the first one */
1307         if (gtk_tree_selection_count_selected_rows (selection) == 0) {
1308                 GtkTreeIter iter;
1309                 GtkTreePath *path;
1310
1311                 /* Return if the model is empty */
1312                 if (!gtk_tree_model_get_iter_first (model, &iter))
1313                         return FALSE;
1314
1315                 path = gtk_tree_model_get_path (model, &iter);
1316                 gtk_tree_selection_select_path (selection, path);
1317                 gtk_tree_path_free (path);
1318         }
1319
1320         /* Need to get the all the rows because is selection multiple */
1321         selected = gtk_tree_selection_get_selected_rows (selection, &model);
1322         if (selected == NULL) return FALSE;
1323         selected_path = (GtkTreePath *) selected->data;
1324
1325         /* Check if we need to scroll */
1326         #if GTK_CHECK_VERSION(2, 8, 0) /* TODO: gtk_tree_view_get_visible_range() is only available in GTK+ 2.8 */
1327         GtkTreePath *start_path = NULL;
1328         GtkTreePath *end_path = NULL;
1329         if (gtk_tree_view_get_visible_range (GTK_TREE_VIEW (self),
1330                                              &start_path,
1331                                              &end_path)) {
1332
1333                 if ((gtk_tree_path_compare (start_path, selected_path) != -1) ||
1334                     (gtk_tree_path_compare (end_path, selected_path) != 1)) {
1335
1336                         /* Scroll to first path */
1337                         gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (self),
1338                                                       selected_path,
1339                                                       NULL,
1340                                                       TRUE,
1341                                                       0.5,
1342                                                       0.0);
1343                 }
1344         }
1345         #endif /* GTK_CHECK_VERSION */
1346
1347         /* Frees */
1348         g_list_foreach (selected, (GFunc) gtk_tree_path_free, NULL);
1349         g_list_free (selected);
1350
1351         return FALSE;
1352 }
1353
1354 static gboolean
1355 idle_notify_added_headers (gpointer data)
1356 {
1357         modest_platform_on_new_msg ();
1358
1359         return FALSE;
1360 }
1361
1362 static void
1363 idle_notify_headers_count_changed_destroy (gpointer data)
1364 {
1365         HeadersCountChangedHelper *helper = NULL;
1366
1367         g_return_if_fail (data != NULL);
1368         helper = (HeadersCountChangedHelper *) data;
1369
1370         g_object_unref (helper->change);
1371         g_slice_free (HeadersCountChangedHelper, helper);
1372 }
1373
1374 static gboolean
1375 idle_notify_headers_count_changed (gpointer data)
1376 {
1377         TnyFolder *folder = NULL;
1378         ModestHeaderViewPrivate *priv = NULL;
1379         HeadersCountChangedHelper *helper = NULL;
1380
1381         g_return_val_if_fail (data != NULL, FALSE);
1382         helper = (HeadersCountChangedHelper *) data;
1383         g_return_val_if_fail (MODEST_IS_HEADER_VIEW(helper->self), FALSE);
1384         g_return_val_if_fail (TNY_FOLDER_CHANGE(helper->change), FALSE);
1385
1386         folder = tny_folder_change_get_folder (helper->change);
1387
1388         priv = MODEST_HEADER_VIEW_GET_PRIVATE (helper->self);
1389         g_mutex_lock (priv->observers_lock);
1390
1391         /* Emmit signal to evaluate how headers changes affects to the window view  */
1392         g_signal_emit (G_OBJECT(helper->self), signals[MSG_COUNT_CHANGED_SIGNAL], 0, folder, helper->change);
1393
1394         /* Added or removed headers, so data sotred on cliboard are invalid  */
1395         modest_email_clipboard_clear (priv->clipboard);
1396
1397         g_mutex_unlock (priv->observers_lock);
1398
1399         return FALSE;
1400 }
1401
1402 static void
1403 folder_monitor_update (TnyFolderObserver *self,
1404                        TnyFolderChange *change)
1405 {
1406         TnyFolderChangeChanged changed;
1407         HeadersCountChangedHelper *helper = NULL;
1408
1409         changed = tny_folder_change_get_changed (change);
1410
1411         /* We need an idle because this function is called from within
1412            a thread, so it could cause problems if the modest platform
1413            code calls dbus for example */
1414         if (changed & TNY_FOLDER_CHANGE_CHANGED_ADDED_HEADERS)
1415                 g_idle_add (idle_notify_added_headers, NULL);
1416
1417         /* Check folder count */
1418         if ((changed & TNY_FOLDER_CHANGE_CHANGED_ADDED_HEADERS) ||
1419             (changed & TNY_FOLDER_CHANGE_CHANGED_REMOVED_HEADERS)) {
1420                 helper = g_slice_new0 (HeadersCountChangedHelper);
1421                 helper->self = MODEST_HEADER_VIEW(self);
1422                 helper->change = g_object_ref(change);
1423
1424                 g_idle_add_full (G_PRIORITY_DEFAULT,
1425                                  idle_notify_headers_count_changed,
1426                                  helper,
1427                                  idle_notify_headers_count_changed_destroy);
1428         }
1429 }
1430
1431 void
1432 modest_header_view_clear (ModestHeaderView *self)
1433 {
1434         modest_header_view_set_folder (self, NULL, NULL, NULL);
1435 }
1436
1437 void
1438 modest_header_view_copy_selection (ModestHeaderView *header_view)
1439 {
1440         /* Copy selection */
1441         _clipboard_set_selected_data (header_view, FALSE);
1442 }
1443
1444 void
1445 modest_header_view_cut_selection (ModestHeaderView *header_view)
1446 {
1447         ModestHeaderViewPrivate *priv = NULL;
1448         GtkTreeModel *model = NULL;
1449         const gchar **hidding = NULL;
1450         guint i, n_selected;
1451
1452         g_return_if_fail (MODEST_IS_HEADER_VIEW (header_view));
1453         priv = MODEST_HEADER_VIEW_GET_PRIVATE (header_view);
1454
1455         /* Copy selection */
1456         _clipboard_set_selected_data (header_view, TRUE);
1457
1458         /* Get hidding ids */
1459         hidding = modest_email_clipboard_get_hidding_ids (priv->clipboard, &n_selected);
1460
1461         /* Clear hidding array created by previous cut operation */
1462         _clear_hidding_filter (MODEST_HEADER_VIEW (header_view));
1463
1464         /* Copy hidding array */
1465         priv->n_selected = n_selected;
1466         priv->hidding_ids = g_malloc0(sizeof(gchar *) * n_selected);
1467         for (i=0; i < n_selected; i++)
1468                 priv->hidding_ids[i] = g_strdup(hidding[i]);
1469
1470         /* Hide cut headers */
1471         model = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
1472         if (GTK_IS_TREE_MODEL_FILTER (model))
1473                 gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (model));
1474 }
1475
1476
1477
1478
1479 static void
1480 _clipboard_set_selected_data (ModestHeaderView *header_view,
1481                               gboolean delete)
1482 {
1483         ModestHeaderViewPrivate *priv = NULL;
1484         TnyList *headers = NULL;
1485
1486         g_return_if_fail (MODEST_IS_HEADER_VIEW (header_view));
1487         priv = MODEST_HEADER_VIEW_GET_PRIVATE (header_view);
1488
1489         /* Set selected data on clipboard   */
1490         g_return_if_fail (MODEST_IS_EMAIL_CLIPBOARD (priv->clipboard));
1491         headers = modest_header_view_get_selected_headers (header_view);
1492         modest_email_clipboard_set_data (priv->clipboard, priv->folder, headers, delete);
1493
1494         /* Free */
1495         g_object_unref (headers);
1496 }
1497
1498
1499
1500 static gboolean
1501 filter_row (GtkTreeModel *model,
1502             GtkTreeIter *iter,
1503             gpointer user_data)
1504 {
1505         ModestHeaderViewPrivate *priv = NULL;
1506         TnyHeader *header = NULL;
1507         guint i;
1508         gchar *id = NULL;
1509         gboolean found = FALSE;
1510
1511         g_return_val_if_fail (MODEST_IS_HEADER_VIEW (user_data), FALSE);
1512         priv = MODEST_HEADER_VIEW_GET_PRIVATE (user_data);
1513
1514         /* If no data on clipboard, return always TRUE */
1515         if (modest_email_clipboard_cleared(priv->clipboard)) return TRUE;
1516
1517         /* Get header from model */
1518         gtk_tree_model_get (model, iter,
1519                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN, &header,
1520                             -1);
1521
1522         /* Get message id from header (ensure is a valid id) */
1523         if (!header) return FALSE;
1524         id = g_strdup(tny_header_get_message_id (header));
1525
1526         /* Check hiding */
1527         if (priv->hidding_ids != NULL)
1528                 for (i=0; i < priv->n_selected && !found; i++)
1529                         if (priv->hidding_ids[i] != NULL && id != NULL)
1530                                 found = (!strcmp (priv->hidding_ids[i], id));
1531
1532         /* Free */
1533         g_object_unref (header);
1534         g_free(id);
1535
1536         return !found;
1537 }
1538
1539 static void
1540 _clear_hidding_filter (ModestHeaderView *header_view)
1541 {
1542         ModestHeaderViewPrivate *priv;
1543         guint i;
1544
1545         g_return_if_fail (MODEST_IS_HEADER_VIEW (header_view));
1546         priv = MODEST_HEADER_VIEW_GET_PRIVATE(header_view);
1547
1548         if (priv->hidding_ids != NULL) {
1549                 for (i=0; i < priv->n_selected; i++)
1550                         g_free (priv->hidding_ids[i]);
1551                 g_free(priv->hidding_ids);
1552         }
1553 }