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 TnyList *
 592 modest_header_view_get_selected_headers (ModestHeaderView *self)
 593 {
 594         GtkTreeSelection *sel;
 595         ModestHeaderViewPrivate *priv;
 596         TnyList *header_list = NULL;
 597         TnyHeader *header;
 598         GList *list, *tmp = NULL;
 599         GtkTreeModel *tree_model = NULL;
 600         GtkTreeIter iter;
 601
 602         g_return_val_if_fail (self, NULL);
 603
 604         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 605
 606         /* Get selected rows */
 607         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 608         list = gtk_tree_selection_get_selected_rows (sel, &tree_model);
 609
 610         if (list) {
 611                 header_list = tny_simple_list_new();
 612
 613                 list = g_list_reverse (list);
 614                 tmp = list;
 615                 while (tmp) {
 616                         /* get header from selection */
 617                         gtk_tree_model_get_iter (tree_model, &iter, (GtkTreePath *) (tmp->data));
 618                         gtk_tree_model_get (tree_model, &iter,
 619                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 620                                             &header, -1);
 621                         /* Prepend to list */
 622                         tny_list_prepend (header_list, G_OBJECT (header));
 623                         g_object_unref (G_OBJECT (header));
 624
 625                         tmp = g_list_next (tmp);
 626                 }
 627                 /* Clean up*/
 628                 g_list_foreach (list, (GFunc) gtk_tree_path_free, NULL);
 629                 g_list_free (list);
 630         }
 631         return header_list;
 632 }
 633
 634
 635 /* scroll our list view so the selected item is visible */
 636 static void
 637 scroll_to_selected (ModestHeaderView *self, GtkTreeIter *iter, gboolean up)
 638 {
 639 #ifdef MODEST_PLATFORM_GNOME
 640
 641         GtkTreePath *selected_path;
 642         GtkTreePath *start, *end;
 643
 644         GtkTreeModel *model;
 645
 646         model         = gtk_tree_view_get_model (GTK_TREE_VIEW(self));
 647         selected_path = gtk_tree_model_get_path (model, iter);
 648
 649         start = gtk_tree_path_new ();
 650         end   = gtk_tree_path_new ();
 651
 652         gtk_tree_view_get_visible_range (GTK_TREE_VIEW(self), &start, &end);
 653
 654         if (gtk_tree_path_compare (selected_path, start) < 0 ||
 655             gtk_tree_path_compare (end, selected_path) < 0)
 656                 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW(self),
 657                                               selected_path, NULL, TRUE,
 658                                               up ? 0.0 : 1.0,
 659                                               up ? 0.0 : 1.0);
 660         gtk_tree_path_free (selected_path);
 661         gtk_tree_path_free (start);
 662         gtk_tree_path_free (end);
 663
 664 #endif /* MODEST_PLATFORM_GNOME */
 665 }
 666
 667
 668 void
 669 modest_header_view_select_next (ModestHeaderView *self)
 670 {
 671         GtkTreeSelection *sel;
 672         GtkTreeIter iter;
 673         GtkTreeModel *model;
 674         GtkTreePath *path;
 675
 676         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 677         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 678         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 679                 /* Unselect previous path */
 680                 gtk_tree_selection_unselect_path (sel, path);
 681
 682                 /* Move path down and selects new one  */
 683                 if (gtk_tree_model_iter_next (model, &iter)) {
 684                         gtk_tree_selection_select_iter (sel, &iter);
 685                         scroll_to_selected (self, &iter, FALSE);
 686                 }
 687                 gtk_tree_path_free(path);
 688         }
 689
 690 }
 691
 692 void
 693 modest_header_view_select_prev (ModestHeaderView *self)
 694 {
 695         GtkTreeSelection *sel;
 696         GtkTreeIter iter;
 697         GtkTreeModel *model;
 698         GtkTreePath *path;
 699
 700         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 701         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 702         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 703                 /* Unselect previous path */
 704                 gtk_tree_selection_unselect_path (sel, path);
 705
 706                 /* Move path up */
 707                 if (gtk_tree_path_prev (path)) {
 708                         gtk_tree_model_get_iter (model, &iter, path);
 709
 710                         /* Select the new one */
 711                         gtk_tree_selection_select_iter (sel, &iter);
 712                         scroll_to_selected (self, &iter, TRUE);
 713
 714                 }
 715                 gtk_tree_path_free (path);
 716         }
 717 }
 718
 719 GList*
 720 modest_header_view_get_columns (ModestHeaderView *self)
 721 {
 722         g_return_val_if_fail (self, FALSE);
 723         return gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 724 }
 725
 726
 727 gboolean
 728 modest_header_view_is_empty (ModestHeaderView *self)
 729 {
 730         g_return_val_if_fail (self, FALSE);
 731         return FALSE; /* FIXME */
 732 }
 733
 734
 735 gboolean
 736 modest_header_view_set_style (ModestHeaderView *self,
 737                               ModestHeaderViewStyle style)
 738 {
 739         ModestHeaderViewPrivate *priv;
 740         gboolean show_col_headers = FALSE;
 741         ModestHeaderViewStyle old_style;
 742
 743         g_return_val_if_fail (self, FALSE);
 744         g_return_val_if_fail (style >= 0 && MODEST_HEADER_VIEW_STYLE_NUM,
 745                               FALSE);
 746
 747         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 748         if (priv->style == style)
 749                 return TRUE; /* nothing to do */
 750
 751         switch (style) {
 752         case MODEST_HEADER_VIEW_STYLE_DETAILS:
 753                 show_col_headers = TRUE;
 754                 break;
 755         case MODEST_HEADER_VIEW_STYLE_TWOLINES:
 756                 break;
 757         default:
 758                 g_return_val_if_reached (FALSE);
 759         }
 760         gtk_tree_view_set_headers_visible   (GTK_TREE_VIEW(self), show_col_headers);
 761         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(self), show_col_headers);
 762
 763         old_style   = priv->style;
 764         priv->style = style;
 765
 766         return TRUE;
 767 }
 768
 769
 770 ModestHeaderViewStyle
 771 modest_header_view_get_style (ModestHeaderView *self)
 772 {
 773         g_return_val_if_fail (self, FALSE);
 774         return MODEST_HEADER_VIEW_GET_PRIVATE(self)->style;
 775 }
 776
 777 /*
 778  * This function sets a sortable model in the header view. It's just
 779  * used for developing purposes, because it only does a
 780  * gtk_tree_view_set_model
 781  */
 782 static void
 783 modest_header_view_set_model (GtkTreeView *header_view, GtkTreeModel *model)
 784 {
 785 /*      GtkTreeModel *old_model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view)); */
 786 /*      if (old_model_sort && GTK_IS_TREE_MODEL_SORT (old_model_sort)) { */
 787 /*              GtkTreeModel *old_model; */
 788 /*              ModestHeaderViewPrivate *priv; */
 789 /*              priv = MODEST_HEADER_VIEW_GET_PRIVATE (header_view); */
 790 /*              old_model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (old_model_sort)); */
 791
 792 /*              /\* Set new model *\/ */
 793 /*              gtk_tree_view_set_model (header_view, model); */
 794 /*      } else */
 795         gtk_tree_view_set_model (header_view, model);
 796 }
 797
 798 TnyFolder*
 799 modest_header_view_get_folder (ModestHeaderView *self)
 800 {
 801         ModestHeaderViewPrivate *priv;
 802         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 803
 804         if (priv->folder)
 805                 g_object_ref (priv->folder);
 806
 807         return priv->folder;
 808 }
 809
 810 static void
 811 modest_header_view_set_folder_intern (ModestHeaderView *self, TnyFolder *folder)
 812 {
 813         TnyFolderType type;
 814         TnyList *headers;
 815         ModestHeaderViewPrivate *priv;
 816         GList *cols, *cursor;
 817         GtkTreeModel *filter_model, *sortable;
 818         guint sort_colid;
 819         GtkSortType sort_type;
 820
 821         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 822
 823         headers = TNY_LIST (tny_gtk_header_list_model_new ());
 824
 825         tny_gtk_header_list_model_set_folder (TNY_GTK_HEADER_LIST_MODEL(headers),
 826                                               folder, FALSE);
 827
 828         /* Add IDLE observer (monitor) and another folder observer for
 829            new messages (self) */
 830         g_mutex_lock (priv->observers_lock);
 831         if (priv->monitor) {
 832                 tny_folder_monitor_stop (priv->monitor);
 833                 g_object_unref (G_OBJECT (priv->monitor));
 834         }
 835         priv->monitor = TNY_FOLDER_MONITOR (tny_folder_monitor_new (folder));
 836         tny_folder_monitor_add_list (priv->monitor, TNY_LIST (headers));
 837         tny_folder_monitor_start (priv->monitor);
 838         tny_folder_add_observer (folder, TNY_FOLDER_OBSERVER (self));
 839         g_mutex_unlock (priv->observers_lock);
 840
 841         sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(headers));
 842         g_object_unref (G_OBJECT (headers));
 843
 844         /* Create a tree model filter to hide and show rows for cut operations  */
 845         filter_model = gtk_tree_model_filter_new (sortable, NULL);
 846         gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (filter_model),
 847                                                 filter_row,
 848                                                 self,
 849                                                 NULL);
 850         g_object_unref (G_OBJECT (sortable));
 851
 852         /* install our special sorting functions */
 853         cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 854
 855         /* Restore sort column id */
 856         if (cols) {
 857                 type  = modest_tny_folder_guess_folder_type (folder);
 858                 sort_colid = modest_header_view_get_sort_column_id (self, type);
 859                 sort_type = modest_header_view_get_sort_type (self, type);
 860                 gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 861                                                       sort_colid,
 862                                                       sort_type);
 863                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 864                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 865                                                  (GtkTreeIterCompareFunc) cmp_rows,
 866                                                  cols->data, NULL);
 867                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 868                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 869                                                  (GtkTreeIterCompareFunc) cmp_subject_rows,
 870                                                  cols->data, NULL);
 871         }
 872
 873         /* Set new model */
 874         modest_header_view_set_model (GTK_TREE_VIEW (self), filter_model);
 875         g_object_unref (G_OBJECT (filter_model));
 876 /*      modest_header_view_set_model (GTK_TREE_VIEW (self), sortable); */
 877 /*      g_object_unref (G_OBJECT (sortable)); */
 878
 879         /* Free */
 880         g_list_free (cols);
 881 }
 882
 883 void
 884 modest_header_view_sort_by_column_id (ModestHeaderView *self,
 885                                       guint sort_colid,
 886                                       GtkSortType sort_type)
 887 {
 888         ModestHeaderViewPrivate *priv = NULL;
 889         GtkTreeModel *tree_filter, *sortable = NULL;
 890         TnyFolderType type;
 891
 892         /* Get model and private data */
 893         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 894         tree_filter = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 895         sortable = gtk_tree_model_filter_get_model (GTK_TREE_MODEL_FILTER(tree_filter));
 896 /*      sortable = gtk_tree_view_get_model (GTK_TREE_VIEW (self)); */
 897
 898         /* Sort tree model */
 899         type  = modest_tny_folder_guess_folder_type (priv->folder);
 900         gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 901                                               sort_colid,
 902                                               sort_type);
 903         /* Store new sort parameters */
 904         modest_header_view_set_sort_params (self, sort_colid, sort_type, type);
 905
 906         /* Save GConf parameters */
 907 /*      modest_widget_memory_save (modest_runtime_get_conf(), */
 908 /*                                 G_OBJECT(self), "header-view"); */
 909
 910 }
 911
 912 void
 913 modest_header_view_set_sort_params (ModestHeaderView *self,
 914                                     guint sort_colid,
 915                                     GtkSortType sort_type,
 916                                     TnyFolderType type)
 917 {
 918         ModestHeaderViewPrivate *priv;
 919         ModestHeaderViewStyle style;
 920
 921         style = modest_header_view_get_style   (self);
 922         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 923
 924         priv->sort_colid[style][type] = sort_colid;
 925         priv->sort_type[style][type] = sort_type;
 926 }
 927
 928 gint
 929 modest_header_view_get_sort_column_id (ModestHeaderView *self,
 930                                        TnyFolderType type)
 931 {
 932         ModestHeaderViewPrivate *priv;
 933         ModestHeaderViewStyle style;
 934
 935         style = modest_header_view_get_style   (self);
 936         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 937
 938         return priv->sort_colid[style][type];
 939 }
 940
 941 GtkSortType
 942 modest_header_view_get_sort_type (ModestHeaderView *self,
 943                                   TnyFolderType type)
 944 {
 945         ModestHeaderViewPrivate *priv;
 946         ModestHeaderViewStyle style;
 947
 948         style = modest_header_view_get_style   (self);
 949         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 950
 951         return priv->sort_type[style][type];
 952 }
 953
 954 void
 955 modest_header_view_set_folder (ModestHeaderView *self,
 956                                TnyFolder *folder,
 957                                RefreshAsyncUserCallback callback,
 958                                gpointer user_data)
 959 {
 960         ModestHeaderViewPrivate *priv;
 961         ModestWindowMgr *mgr = NULL;
 962         GObject *source = NULL;
 963
 964         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 965
 966         if (priv->folder) {
 967                 g_mutex_lock (priv->observers_lock);
 968                 tny_folder_remove_observer (priv->folder, TNY_FOLDER_OBSERVER (self));
 969                 g_object_unref (priv->folder);
 970                 priv->folder = NULL;
 971                 g_mutex_unlock (priv->observers_lock);
 972         }
 973
 974         if (folder) {
 975                 ModestMailOperation *mail_op = NULL;
 976
 977                 /* Get main window to use it as source of mail operation */
 978                 mgr = modest_runtime_get_window_mgr ();
 979                 source = G_OBJECT (modest_window_mgr_get_main_window (modest_runtime_get_window_mgr ()));
 980
 981                 /* Set folder in the model */
 982                 modest_header_view_set_folder_intern (self, folder);
 983
 984                 /* Pick my reference. Nothing to do with the mail operation */
 985                 priv->folder = g_object_ref (folder);
 986
 987                 /* no message selected */
 988                 g_signal_emit (G_OBJECT(self), signals[HEADER_SELECTED_SIGNAL], 0, NULL);
 989
 990                 /* Create the mail operation (source will be the parent widget) */
 991                 mail_op = modest_mail_operation_new (MODEST_MAIL_OPERATION_TYPE_RECEIVE, source);
 992                 modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
 993                                                  mail_op);
 994
 995                 /* Refresh the folder asynchronously */
 996                 modest_mail_operation_refresh_folder (mail_op, folder,
 997                                                       callback,
 998                                                       user_data);
 999
1000                 /* Free */
1001                 g_object_unref (mail_op);
1002         } else {
1003                 g_mutex_lock (priv->observers_lock);
1004
1005                 if (priv->monitor) {
1006                         tny_folder_monitor_stop (priv->monitor);
1007                         g_object_unref (G_OBJECT (priv->monitor));
1008                         priv->monitor = NULL;
1009                 }
1010                 modest_header_view_set_model (GTK_TREE_VIEW (self), NULL);
1011
1012                 g_mutex_unlock (priv->observers_lock);
1013         }
1014 }
1015
1016 static void
1017 on_header_row_activated (GtkTreeView *treeview, GtkTreePath *path,
1018                          GtkTreeViewColumn *column, gpointer userdata)
1019 {
1020         ModestHeaderView *self = NULL;
1021         ModestHeaderViewPrivate *priv = NULL;
1022         GtkTreeIter iter;
1023         GtkTreeModel *model = NULL;
1024         TnyHeader *header;
1025
1026         self = MODEST_HEADER_VIEW (treeview);
1027         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
1028
1029         model = gtk_tree_view_get_model (treeview);
1030
1031         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
1032                 return;
1033
1034         /* get the first selected item */
1035         gtk_tree_model_get (model, &iter,
1036                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
1037                             &header, -1);
1038         /* Emit signal */
1039         g_signal_emit (G_OBJECT(self),
1040                        signals[HEADER_ACTIVATED_SIGNAL],
1041                        0, header);
1042
1043         /* Free */
1044         g_object_unref (G_OBJECT (header));
1045
1046 }
1047
1048 static void
1049 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
1050 {
1051         GtkTreeModel *model;
1052         TnyHeader *header;
1053         GtkTreePath *path = NULL;
1054         GtkTreeIter iter;
1055         ModestHeaderView *self;
1056         ModestHeaderViewPrivate *priv;
1057         GList *selected = NULL;
1058
1059         g_return_if_fail (sel);
1060         g_return_if_fail (user_data);
1061
1062         self = MODEST_HEADER_VIEW (user_data);
1063         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
1064
1065         selected = gtk_tree_selection_get_selected_rows (sel, &model);
1066         if (selected != NULL)
1067                 path = (GtkTreePath *) selected->data;
1068         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
1069                 return; /* msg was _un_selected */
1070
1071         gtk_tree_model_get (model, &iter,
1072                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
1073                             &header, -1);
1074
1075         /* Emit signal */
1076         g_signal_emit (G_OBJECT(self),
1077                        signals[HEADER_SELECTED_SIGNAL],
1078                        0, header);
1079
1080         g_object_unref (G_OBJECT (header));
1081         gtk_tree_path_free(path);
1082 }
1083
1084
1085 /* PROTECTED method. It's useful when we want to force a given
1086    selection to reload a msg. For example if we have selected a header
1087    in offline mode, when Modest become online, we want to reload the
1088    message automatically without an user click over the header */
1089 void
1090 _modest_header_view_change_selection (GtkTreeSelection *selection,
1091                                       gpointer user_data)
1092 {
1093         g_return_if_fail (GTK_IS_TREE_SELECTION (selection));
1094         g_return_if_fail (MODEST_IS_HEADER_VIEW (user_data));
1095
1096         on_selection_changed (selection, user_data);
1097 }
1098
1099
1100 static gint
1101 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
1102           gpointer user_data)
1103 {
1104         gint col_id;
1105         gint t1, t2;
1106         gint val1, val2;
1107         gint cmp;
1108 /*      static int counter = 0; */
1109
1110         g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN(user_data), 0);
1111 /*      col_id = gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (tree_model)); */
1112         col_id = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(user_data), MODEST_HEADER_VIEW_FLAG_SORT));
1113
1114
1115         switch (col_id) {
1116         case TNY_HEADER_FLAG_ATTACHMENTS:
1117
1118                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1119                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1, -1);
1120                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1121                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2, -1);
1122
1123                 cmp = (val1 & TNY_HEADER_FLAG_ATTACHMENTS) -
1124                         (val2 & TNY_HEADER_FLAG_ATTACHMENTS);
1125
1126                 return cmp ? cmp : t1 - t2;
1127
1128         case TNY_HEADER_FLAG_PRIORITY:
1129                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1130                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,-1);
1131                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1132                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,-1);
1133
1134                 /* This is for making priority values respect the intuitive sort relationship
1135                  * as HIGH is 11, LOW is 01, and we put NORMAL AS 10 (2) */
1136                 if (val1 == 0) val1 = 2;
1137                 if (val2 == 0) val2 = 2;
1138
1139                 cmp =  (val1 & TNY_HEADER_FLAG_PRIORITY) - (val2 & TNY_HEADER_FLAG_PRIORITY);
1140
1141                 return cmp ? cmp : t1 - t2;
1142
1143         default:
1144                 return &iter1 - &iter2; /* oughhhh  */
1145         }
1146 }
1147
1148 static gint
1149 cmp_subject_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
1150                   gpointer user_data)
1151 {
1152         gint t1, t2;
1153         gchar *val1, *val2;
1154         gint cmp;
1155 /*      static int counter = 0; */
1156
1157         g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN(user_data), 0);
1158
1159         gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_SUBJECT_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_SUBJECT_COLUMN, &val2,
1162                             TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2, -1);
1163
1164         cmp = modest_text_utils_utf8_strcmp (val1 + modest_text_utils_get_subject_prefix_len(val1),
1165                                              val2 + modest_text_utils_get_subject_prefix_len(val2),
1166                                              TRUE);
1167         g_free (val1);
1168         g_free (val2);
1169         return cmp;
1170 }
1171
1172 /* Drag and drop stuff */
1173 static void
1174 drag_data_get_cb (GtkWidget *widget, GdkDragContext *context,
1175                   GtkSelectionData *selection_data,
1176                   guint info,  guint time, gpointer data)
1177 {
1178         GtkTreeModel *model = NULL;
1179         GtkTreeIter iter;
1180         GtkTreePath *source_row = NULL;
1181
1182         source_row = get_selected_row (GTK_TREE_VIEW (widget), &model);
1183         if ((source_row == NULL) || (!gtk_tree_model_get_iter(model, &iter, source_row))) return;
1184
1185         switch (info) {
1186         case MODEST_HEADER_ROW:
1187                 gtk_tree_set_row_drag_data (selection_data, model, source_row);
1188                 break;
1189         case MODEST_MSG: {
1190                 TnyHeader *hdr;
1191                 gtk_tree_model_get (model, &iter,
1192                                     TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN, &hdr,
1193                                     -1);
1194                 if (hdr) {
1195                         g_object_unref (G_OBJECT(hdr));
1196                 }
1197                 break;
1198         }
1199         default:
1200                 g_message ("%s: default switch case.", __FUNCTION__);
1201         }
1202
1203         gtk_tree_path_free (source_row);
1204 }
1205
1206 /* Header view drag types */
1207 const GtkTargetEntry header_view_drag_types[] = {
1208         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP, MODEST_HEADER_ROW },
1209         { "text/uri-list",      0,                   MODEST_MSG },
1210 };
1211
1212 static void
1213 setup_drag_and_drop (GtkTreeView *self)
1214 {
1215         gtk_drag_source_set (GTK_WIDGET (self),
1216                              GDK_BUTTON1_MASK,
1217                              header_view_drag_types,
1218                              G_N_ELEMENTS (header_view_drag_types),
1219                              GDK_ACTION_MOVE | GDK_ACTION_COPY);
1220
1221         g_signal_connect(G_OBJECT (self), "drag_data_get",
1222                          G_CALLBACK(drag_data_get_cb), NULL);
1223 }
1224
1225 static GtkTreePath *
1226 get_selected_row (GtkTreeView *self, GtkTreeModel **model)
1227 {
1228         GtkTreePath *path = NULL;
1229         GtkTreeSelection *sel = NULL;
1230         GList *rows = NULL;
1231
1232         sel   = gtk_tree_view_get_selection(self);
1233         rows = gtk_tree_selection_get_selected_rows (sel, model);
1234
1235         if ((rows == NULL) || (g_list_length(rows) != 1))
1236                 goto frees;
1237
1238         path = gtk_tree_path_copy(g_list_nth_data (rows, 0));
1239
1240
1241         /* Free */
1242  frees:
1243         g_list_foreach(rows,(GFunc) gtk_tree_path_free, NULL);
1244         g_list_free(rows);
1245
1246         return path;
1247 }
1248
1249 /*
1250  * This function moves the tree view scroll to the current selected
1251  * row when the widget grabs the focus
1252  */
1253 static gboolean
1254 on_focus_in (GtkWidget     *self,
1255              GdkEventFocus *event,
1256              gpointer       user_data)
1257 {
1258         GtkTreeSelection *selection;
1259         GtkTreeModel *model;
1260         GList *selected = NULL;
1261         GtkTreePath *selected_path = NULL;
1262
1263         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
1264         if (!model)
1265                 return FALSE;
1266
1267         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
1268         /* If none selected yet, pick the first one */
1269         if (gtk_tree_selection_count_selected_rows (selection) == 0) {
1270                 GtkTreeIter iter;
1271                 GtkTreePath *path;
1272
1273                 /* Return if the model is empty */
1274                 if (!gtk_tree_model_get_iter_first (model, &iter))
1275                         return FALSE;
1276
1277                 path = gtk_tree_model_get_path (model, &iter);
1278                 gtk_tree_selection_select_path (selection, path);
1279                 gtk_tree_path_free (path);
1280         }
1281
1282         /* Need to get the all the rows because is selection multiple */
1283         selected = gtk_tree_selection_get_selected_rows (selection, &model);
1284         if (selected == NULL) return FALSE;
1285         selected_path = (GtkTreePath *) selected->data;
1286
1287         /* Check if we need to scroll */
1288         #if GTK_CHECK_VERSION(2, 8, 0) /* TODO: gtk_tree_view_get_visible_range() is only available in GTK+ 2.8 */
1289         GtkTreePath *start_path = NULL;
1290         GtkTreePath *end_path = NULL;
1291         if (gtk_tree_view_get_visible_range (GTK_TREE_VIEW (self),
1292                                              &start_path,
1293                                              &end_path)) {
1294
1295                 if ((gtk_tree_path_compare (start_path, selected_path) != -1) ||
1296                     (gtk_tree_path_compare (end_path, selected_path) != 1)) {
1297
1298                         /* Scroll to first path */
1299                         gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (self),
1300                                                       selected_path,
1301                                                       NULL,
1302                                                       TRUE,
1303                                                       0.5,
1304                                                       0.0);
1305                 }
1306         }
1307         #endif /* GTK_CHECK_VERSION */
1308
1309         /* Frees */
1310         g_list_foreach (selected, (GFunc) gtk_tree_path_free, NULL);
1311         g_list_free (selected);
1312
1313         return FALSE;
1314 }
1315
1316 static gboolean
1317 idle_notify_added_headers (gpointer data)
1318 {
1319         modest_platform_on_new_msg ();
1320
1321         return FALSE;
1322 }
1323
1324 static void
1325 idle_notify_headers_count_changed_destroy (gpointer data)
1326 {
1327         HeadersCountChangedHelper *helper = NULL;
1328
1329         g_return_if_fail (data != NULL);
1330         helper = (HeadersCountChangedHelper *) data;
1331
1332         g_object_unref (helper->change);
1333         g_slice_free (HeadersCountChangedHelper, helper);
1334 }
1335
1336 static gboolean
1337 idle_notify_headers_count_changed (gpointer data)
1338 {
1339         TnyFolder *folder = NULL;
1340         ModestHeaderViewPrivate *priv = NULL;
1341         HeadersCountChangedHelper *helper = NULL;
1342
1343         g_return_val_if_fail (data != NULL, FALSE);
1344         helper = (HeadersCountChangedHelper *) data;
1345         g_return_val_if_fail (MODEST_IS_HEADER_VIEW(helper->self), FALSE);
1346         g_return_val_if_fail (TNY_FOLDER_CHANGE(helper->change), FALSE);
1347
1348         folder = tny_folder_change_get_folder (helper->change);
1349
1350         priv = MODEST_HEADER_VIEW_GET_PRIVATE (helper->self);
1351         g_mutex_lock (priv->observers_lock);
1352
1353         /* Emmit signal to evaluate how headers changes affects to the window view  */
1354         g_signal_emit (G_OBJECT(helper->self), signals[MSG_COUNT_CHANGED_SIGNAL], 0, folder, helper->change);
1355
1356         /* Added or removed headers, so data sotred on cliboard are invalid  */
1357         modest_email_clipboard_clear (priv->clipboard);
1358
1359         g_mutex_unlock (priv->observers_lock);
1360
1361         return FALSE;
1362 }
1363
1364 static void
1365 folder_monitor_update (TnyFolderObserver *self,
1366                        TnyFolderChange *change)
1367 {
1368         TnyFolderChangeChanged changed;
1369         HeadersCountChangedHelper *helper = NULL;
1370
1371         changed = tny_folder_change_get_changed (change);
1372
1373         /* We need an idle because this function is called from within
1374            a thread, so it could cause problems if the modest platform
1375            code calls dbus for example */
1376         if (changed & TNY_FOLDER_CHANGE_CHANGED_ADDED_HEADERS)
1377                 g_idle_add (idle_notify_added_headers, NULL);
1378
1379         /* Check folder count */
1380         if ((changed & TNY_FOLDER_CHANGE_CHANGED_ADDED_HEADERS) ||
1381             (changed & TNY_FOLDER_CHANGE_CHANGED_REMOVED_HEADERS)) {
1382                 helper = g_slice_new0 (HeadersCountChangedHelper);
1383                 helper->self = MODEST_HEADER_VIEW(self);
1384                 helper->change = g_object_ref(change);
1385
1386                 g_idle_add_full (G_PRIORITY_DEFAULT,
1387                                  idle_notify_headers_count_changed,
1388                                  helper,
1389                                  idle_notify_headers_count_changed_destroy);
1390         }
1391 }
1392
1393 void
1394 modest_header_view_clear (ModestHeaderView *self)
1395 {
1396         modest_header_view_set_folder (self, NULL, NULL, NULL);
1397 }
1398
1399 void
1400 modest_header_view_copy_selection (ModestHeaderView *header_view)
1401 {
1402         /* Copy selection */
1403         _clipboard_set_selected_data (header_view, FALSE);
1404 }
1405
1406 void
1407 modest_header_view_cut_selection (ModestHeaderView *header_view)
1408 {
1409         ModestHeaderViewPrivate *priv = NULL;
1410         GtkTreeModel *model = NULL;
1411         const gchar **hidding = NULL;
1412         guint i, n_selected;
1413
1414         g_return_if_fail (MODEST_IS_HEADER_VIEW (header_view));
1415         priv = MODEST_HEADER_VIEW_GET_PRIVATE (header_view);
1416
1417         /* Copy selection */
1418         _clipboard_set_selected_data (header_view, TRUE);
1419
1420         /* Get hidding ids */
1421         hidding = modest_email_clipboard_get_hidding_ids (priv->clipboard, &n_selected);
1422
1423         /* Clear hidding array created by previous cut operation */
1424         _clear_hidding_filter (MODEST_HEADER_VIEW (header_view));
1425
1426         /* Copy hidding array */
1427         priv->n_selected = n_selected;
1428         priv->hidding_ids = g_malloc0(sizeof(gchar *) * n_selected);
1429         for (i=0; i < n_selected; i++)
1430                 priv->hidding_ids[i] = g_strdup(hidding[i]);
1431
1432         /* Hide cut headers */
1433         model = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
1434         if (GTK_IS_TREE_MODEL_FILTER (model))
1435                 gtk_tree_model_filter_refilter (GTK_TREE_MODEL_FILTER (model));
1436 }
1437
1438
1439
1440
1441 static void
1442 _clipboard_set_selected_data (ModestHeaderView *header_view,
1443                               gboolean delete)
1444 {
1445         ModestHeaderViewPrivate *priv = NULL;
1446         TnyList *headers = NULL;
1447
1448         g_return_if_fail (MODEST_IS_HEADER_VIEW (header_view));
1449         priv = MODEST_HEADER_VIEW_GET_PRIVATE (header_view);
1450
1451         /* Set selected data on clipboard   */
1452         g_return_if_fail (MODEST_IS_EMAIL_CLIPBOARD (priv->clipboard));
1453         headers = modest_header_view_get_selected_headers (header_view);
1454         modest_email_clipboard_set_data (priv->clipboard, priv->folder, headers, delete);
1455
1456         /* Free */
1457         g_object_unref (headers);
1458 }
1459
1460
1461
1462 static gboolean
1463 filter_row (GtkTreeModel *model,
1464             GtkTreeIter *iter,
1465             gpointer user_data)
1466 {
1467         ModestHeaderViewPrivate *priv = NULL;
1468         TnyHeader *header = NULL;
1469         guint i;
1470         gchar *id = NULL;
1471         gboolean found = FALSE;
1472
1473         g_return_val_if_fail (MODEST_IS_HEADER_VIEW (user_data), FALSE);
1474         priv = MODEST_HEADER_VIEW_GET_PRIVATE (user_data);
1475
1476         /* If no data on clipboard, return always TRUE */
1477         if (modest_email_clipboard_cleared(priv->clipboard)) return TRUE;
1478
1479         /* Get header from model */
1480         gtk_tree_model_get (model, iter,
1481                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN, &header,
1482                             -1);
1483
1484         /* Get message id from header (ensure is a valid id) */
1485         if (!header) return FALSE;
1486         id = g_strdup(tny_header_get_message_id (header));
1487
1488         /* Check hiding */
1489         if (priv->hidding_ids != NULL)
1490                 for (i=0; i < priv->n_selected && !found; i++)
1491                         if (priv->hidding_ids[i] != NULL && id != NULL)
1492                                 found = (!strcmp (priv->hidding_ids[i], id));
1493
1494         /* Free */
1495         g_object_unref (header);
1496         g_free(id);
1497
1498         return !found;
1499 }
1500
1501 static void
1502 _clear_hidding_filter (ModestHeaderView *header_view)
1503 {
1504         ModestHeaderViewPrivate *priv;
1505         guint i;
1506
1507         g_return_if_fail (MODEST_IS_HEADER_VIEW (header_view));
1508         priv = MODEST_HEADER_VIEW_GET_PRIVATE(header_view);
1509
1510         if (priv->hidding_ids != NULL) {
1511                 for (i=0; i < priv->n_selected; i++)
1512                         g_free (priv->hidding_ids[i]);
1513                 g_free(priv->hidding_ids);
1514         }
1515 }