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

   1 /* Copyright (c) 2006, Nokia Corporation
   2  * All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  * * Redistributions of source code must retain the above copyright
   9  *   notice, this list of conditions and the following disclaimer.
  10  * * Redistributions in binary form must reproduce the above copyright
  11  *   notice, this list of conditions and the following disclaimer in the
  12  *   documentation and/or other materials provided with the distribution.
  13  * * Neither the name of the Nokia Corporation nor the names of its
  14  *   contributors may be used to endorse or promote products derived from
  15  *   this software without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
  18  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  19  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
  20  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
  21  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  22  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  23  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  24  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  25  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  26  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  27  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include <glib/gi18n.h>
  31 #include <tny-list.h>
  32 #include <tny-simple-list.h>
  33 #include <tny-folder-monitor.h>
  34 #include <string.h>
  35
  36 #include <modest-header-view.h>
  37 #include <modest-header-view-priv.h>
  38 #include <modest-dnd.h>
  39 #include <modest-tny-folder.h>
  40
  41 #include <modest-main-window.h>
  42
  43 #include <modest-marshal.h>
  44 #include <modest-text-utils.h>
  45 #include <modest-icon-names.h>
  46 #include <modest-runtime.h>
  47 #include "modest-platform.h"
  48 #include <modest-hbox-cell-renderer.h>
  49 #include <modest-vbox-cell-renderer.h>
  50
  51 static void modest_header_view_class_init  (ModestHeaderViewClass *klass);
  52 static void modest_header_view_init        (ModestHeaderView *obj);
  53 static void modest_header_view_finalize    (GObject *obj);
  54
  55 static void          on_header_row_activated (GtkTreeView *treeview, GtkTreePath *path,
  56                                               GtkTreeViewColumn *column, gpointer userdata);
  57
  58 static gint          cmp_rows               (GtkTreeModel *tree_model,
  59                                              GtkTreeIter *iter1,
  60                                              GtkTreeIter *iter2,
  61                                              gpointer user_data);
  62
  63 static gint          cmp_subject_rows       (GtkTreeModel *tree_model,
  64                                              GtkTreeIter *iter1,
  65                                              GtkTreeIter *iter2,
  66                                              gpointer user_data);
  67
  68 static void          on_selection_changed   (GtkTreeSelection *sel,
  69                                              gpointer user_data);
  70
  71 static void          setup_drag_and_drop    (GtkTreeView *self);
  72
  73 static GtkTreePath * get_selected_row       (GtkTreeView *self, GtkTreeModel **model);
  74
  75 static gboolean      on_focus_in            (GtkWidget     *sef,
  76                                              GdkEventFocus *event,
  77                                              gpointer       user_data);
  78
  79 static void          folder_monitor_update  (TnyFolderObserver *self,
  80                                              TnyFolderChange *change);
  81
  82 static void          tny_folder_observer_init (TnyFolderObserverIface *klass);
  83
  84
  85 typedef struct _ModestHeaderViewPrivate ModestHeaderViewPrivate;
  86 struct _ModestHeaderViewPrivate {
  87         TnyFolder            *folder;
  88         ModestHeaderViewStyle style;
  89
  90         TnyFolderMonitor     *monitor;
  91         GMutex               *observers_lock;
  92
  93         gint                  sort_colid[2][TNY_FOLDER_TYPE_NUM];
  94         gint                  sort_type[2][TNY_FOLDER_TYPE_NUM];
  95
  96
  97 };
  98
  99 typedef struct _HeadersCountChangedHelper HeadersCountChangedHelper;
 100 struct _HeadersCountChangedHelper {
 101         ModestHeaderView *self;
 102         TnyFolderChange  *change;
 103 };
 104
 105
 106 #define MODEST_HEADER_VIEW_GET_PRIVATE(o)      (G_TYPE_INSTANCE_GET_PRIVATE((o), \
 107                                                 MODEST_TYPE_HEADER_VIEW, \
 108                                                 ModestHeaderViewPrivate))
 109
 110
 111
 112 #define MODEST_HEADER_VIEW_PTR "modest-header-view"
 113
 114 enum {
 115         HEADER_SELECTED_SIGNAL,
 116         HEADER_ACTIVATED_SIGNAL,
 117         ITEM_NOT_FOUND_SIGNAL,
 118         MSG_COUNT_CHANGED_SIGNAL,
 119         LAST_SIGNAL
 120 };
 121
 122 /* globals */
 123 static GObjectClass *parent_class = NULL;
 124
 125 /* uncomment the following if you have defined any signals */
 126 static guint signals[LAST_SIGNAL] = {0};
 127
 128 GType
 129 modest_header_view_get_type (void)
 130 {
 131         static GType my_type = 0;
 132         if (!my_type) {
 133                 static const GTypeInfo my_info = {
 134                         sizeof(ModestHeaderViewClass),
 135                         NULL,           /* base init */
 136                         NULL,           /* base finalize */
 137                         (GClassInitFunc) modest_header_view_class_init,
 138                         NULL,           /* class finalize */
 139                         NULL,           /* class data */
 140                         sizeof(ModestHeaderView),
 141                         1,              /* n_preallocs */
 142                         (GInstanceInitFunc) modest_header_view_init,
 143                         NULL
 144                 };
 145
 146                 static const GInterfaceInfo tny_folder_observer_info =
 147                 {
 148                         (GInterfaceInitFunc) tny_folder_observer_init, /* interface_init */
 149                         NULL,         /* interface_finalize */
 150                         NULL          /* interface_data */
 151                 };
 152                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
 153                                                   "ModestHeaderView",
 154                                                   &my_info, 0);
 155
 156                 g_type_add_interface_static (my_type, TNY_TYPE_FOLDER_OBSERVER,
 157                                              &tny_folder_observer_info);
 158
 159
 160         }
 161         return my_type;
 162 }
 163
 164 static void
 165 modest_header_view_class_init (ModestHeaderViewClass *klass)
 166 {
 167         GObjectClass *gobject_class;
 168         gobject_class = (GObjectClass*) klass;
 169
 170         parent_class            = g_type_class_peek_parent (klass);
 171         gobject_class->finalize = modest_header_view_finalize;
 172
 173         g_type_class_add_private (gobject_class, sizeof(ModestHeaderViewPrivate));
 174
 175         signals[HEADER_SELECTED_SIGNAL] =
 176                 g_signal_new ("header_selected",
 177                               G_TYPE_FROM_CLASS (gobject_class),
 178                               G_SIGNAL_RUN_FIRST,
 179                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_selected),
 180                               NULL, NULL,
 181                               g_cclosure_marshal_VOID__POINTER,
 182                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 183
 184         signals[HEADER_ACTIVATED_SIGNAL] =
 185                 g_signal_new ("header_activated",
 186                               G_TYPE_FROM_CLASS (gobject_class),
 187                               G_SIGNAL_RUN_FIRST,
 188                               G_STRUCT_OFFSET (ModestHeaderViewClass,header_activated),
 189                               NULL, NULL,
 190                               g_cclosure_marshal_VOID__POINTER,
 191                               G_TYPE_NONE, 1, G_TYPE_POINTER);
 192
 193
 194         signals[ITEM_NOT_FOUND_SIGNAL] =
 195                 g_signal_new ("item_not_found",
 196                               G_TYPE_FROM_CLASS (gobject_class),
 197                               G_SIGNAL_RUN_FIRST,
 198                               G_STRUCT_OFFSET (ModestHeaderViewClass,item_not_found),
 199                               NULL, NULL,
 200                               g_cclosure_marshal_VOID__INT,
 201                               G_TYPE_NONE, 1, G_TYPE_INT);
 202
 203         signals[MSG_COUNT_CHANGED_SIGNAL] =
 204                 g_signal_new ("msg_count_changed",
 205                               G_TYPE_FROM_CLASS (gobject_class),
 206                               G_SIGNAL_RUN_FIRST,
 207                               G_STRUCT_OFFSET (ModestHeaderViewClass, msg_count_changed),
 208                               NULL, NULL,
 209                               modest_marshal_VOID__POINTER_POINTER,
 210                               G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_POINTER);
 211 }
 212
 213 static void
 214 tny_folder_observer_init (TnyFolderObserverIface *klass)
 215 {
 216         klass->update_func = folder_monitor_update;
 217 }
 218
 219 static GtkTreeViewColumn*
 220 get_new_column (const gchar *name, GtkCellRenderer *renderer,
 221                 gboolean resizable, gint sort_col_id, gboolean show_as_text,
 222                 GtkTreeCellDataFunc cell_data_func, gpointer user_data)
 223 {
 224         GtkTreeViewColumn *column;
 225
 226         column =  gtk_tree_view_column_new_with_attributes(name, renderer, NULL);
 227         gtk_tree_view_column_set_sizing (column, GTK_TREE_VIEW_COLUMN_FIXED);
 228
 229         gtk_tree_view_column_set_resizable (column, resizable);
 230         if (resizable)
 231                 gtk_tree_view_column_set_expand (column, TRUE);
 232
 233         if (show_as_text)
 234                 gtk_tree_view_column_add_attribute (column, renderer, "text",
 235                                                     sort_col_id);
 236         if (sort_col_id >= 0)
 237                 gtk_tree_view_column_set_sort_column_id (column, sort_col_id);
 238
 239         gtk_tree_view_column_set_sort_indicator (column, FALSE);
 240         gtk_tree_view_column_set_reorderable (column, TRUE);
 241
 242         if (cell_data_func)
 243                 gtk_tree_view_column_set_cell_data_func(column, renderer, cell_data_func,
 244                                                         user_data, NULL);
 245         return column;
 246 }
 247
 248
 249 static void
 250 remove_all_columns (ModestHeaderView *obj)
 251 {
 252         GList *columns, *cursor;
 253
 254         columns = gtk_tree_view_get_columns (GTK_TREE_VIEW(obj));
 255
 256         for (cursor = columns; cursor; cursor = cursor->next)
 257                 gtk_tree_view_remove_column (GTK_TREE_VIEW(obj),
 258                                              GTK_TREE_VIEW_COLUMN(cursor->data));
 259         g_list_free (columns);
 260 }
 261
 262 gboolean
 263 modest_header_view_set_columns (ModestHeaderView *self, const GList *columns, TnyFolderType type)
 264 {
 265         GtkTreeModel *sortable;
 266         GtkTreeViewColumn *column=NULL;
 267         GtkTreeSelection *selection = NULL;
 268         GtkCellRenderer *renderer_msgtype,*renderer_header,
 269                 *renderer_attach, *renderer_compact_date;
 270         GtkCellRenderer *renderer_compact_header, *renderer_recpt_box,
 271                 *renderer_subject, *renderer_subject_box, *renderer_recpt,
 272                 *renderer_priority;
 273         ModestHeaderViewPrivate *priv;
 274         GtkTreeViewColumn *compact_column = NULL;
 275         const GList *cursor;
 276
 277         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 278
 279         /* FIXME: check whether these renderers need to be freed */
 280         renderer_msgtype = gtk_cell_renderer_pixbuf_new ();
 281         renderer_attach  = gtk_cell_renderer_pixbuf_new ();
 282         renderer_priority  = gtk_cell_renderer_pixbuf_new ();
 283         renderer_header  = gtk_cell_renderer_text_new ();
 284
 285         renderer_compact_header = modest_vbox_cell_renderer_new ();
 286         renderer_recpt_box = modest_hbox_cell_renderer_new ();
 287         renderer_subject_box = modest_hbox_cell_renderer_new ();
 288         renderer_recpt = gtk_cell_renderer_text_new ();
 289         renderer_subject = gtk_cell_renderer_text_new ();
 290         renderer_compact_date  = gtk_cell_renderer_text_new ();
 291
 292         modest_vbox_cell_renderer_append (MODEST_VBOX_CELL_RENDERER (renderer_compact_header), renderer_subject_box, FALSE);
 293         g_object_set_data (G_OBJECT (renderer_compact_header), "subject-box-renderer", renderer_subject_box);
 294         modest_vbox_cell_renderer_append (MODEST_VBOX_CELL_RENDERER (renderer_compact_header), renderer_recpt_box, FALSE);
 295         g_object_set_data (G_OBJECT (renderer_compact_header), "recpt-box-renderer", renderer_recpt_box);
 296         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_subject_box), renderer_priority, FALSE);
 297         g_object_set_data (G_OBJECT (renderer_subject_box), "priority-renderer", renderer_priority);
 298         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_subject_box), renderer_subject, TRUE);
 299         g_object_set_data (G_OBJECT (renderer_subject_box), "subject-renderer", renderer_subject);
 300         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_recpt_box), renderer_attach, FALSE);
 301         g_object_set_data (G_OBJECT (renderer_recpt_box), "attach-renderer", renderer_attach);
 302         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_recpt_box), renderer_recpt, TRUE);
 303         g_object_set_data (G_OBJECT (renderer_recpt_box), "recipient-renderer", renderer_recpt);
 304         modest_hbox_cell_renderer_append (MODEST_HBOX_CELL_RENDERER (renderer_recpt_box), renderer_compact_date, FALSE);
 305         g_object_set_data (G_OBJECT (renderer_recpt_box), "date-renderer", renderer_compact_date);
 306
 307         g_object_set(G_OBJECT(renderer_header),
 308                      "ellipsize", PANGO_ELLIPSIZE_END,
 309                      NULL);
 310         g_object_set (G_OBJECT (renderer_subject),
 311                       "ellipsize", PANGO_ELLIPSIZE_END,
 312                       NULL);
 313         g_object_set (G_OBJECT (renderer_recpt),
 314                       "ellipsize", PANGO_ELLIPSIZE_END,
 315                       NULL);
 316         g_object_set(G_OBJECT(renderer_compact_date),
 317                      "xalign", 1.0,
 318                      NULL);
 319
 320         gtk_cell_renderer_set_fixed_size (renderer_attach, 32, 32);
 321         gtk_cell_renderer_set_fixed_size (renderer_priority, 32, 32);
 322
 323         remove_all_columns (self);
 324
 325         selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 326         gtk_tree_selection_set_mode(selection, GTK_SELECTION_MULTIPLE);
 327         sortable = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 328
 329         /* Add new columns */
 330         for (cursor = columns; cursor; cursor = g_list_next(cursor)) {
 331                 ModestHeaderViewColumn col =
 332                         (ModestHeaderViewColumn) GPOINTER_TO_INT(cursor->data);
 333
 334                 if (0> col || col >= MODEST_HEADER_VIEW_COLUMN_NUM) {
 335                         g_printerr ("modest: invalid column %d in column list\n", col);
 336                         continue;
 337                 }
 338
 339                 switch (col) {
 340
 341                 case MODEST_HEADER_VIEW_COLUMN_MSGTYPE:
 342                         column = get_new_column (_("M"), renderer_msgtype, FALSE,
 343                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 344                                                  FALSE,
 345                                                  (GtkTreeCellDataFunc)_modest_header_view_msgtype_cell_data,
 346                                                  NULL);
 347                         gtk_tree_view_column_set_fixed_width (column, 45);
 348                         break;
 349
 350                 case MODEST_HEADER_VIEW_COLUMN_ATTACH:
 351                         column = get_new_column (_("A"), renderer_attach, FALSE,
 352                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 353                                                  FALSE,
 354                                                  (GtkTreeCellDataFunc)_modest_header_view_attach_cell_data,
 355                                                  NULL);
 356                         gtk_tree_view_column_set_fixed_width (column, 45);
 357                         break;
 358
 359
 360                 case MODEST_HEADER_VIEW_COLUMN_FROM:
 361                         column = get_new_column (_("From"), renderer_header, TRUE,
 362                                                  TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 363                                                  TRUE,
 364                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 365                                                  GINT_TO_POINTER(TRUE));
 366                         break;
 367
 368                 case MODEST_HEADER_VIEW_COLUMN_TO:
 369                         column = get_new_column (_("To"), renderer_header, TRUE,
 370                                                  TNY_GTK_HEADER_LIST_MODEL_TO_COLUMN,
 371                                                  TRUE,
 372                                                  (GtkTreeCellDataFunc)_modest_header_view_sender_receiver_cell_data,
 373                                                  GINT_TO_POINTER(FALSE));
 374                         break;
 375
 376                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_IN:
 377                         column = get_new_column (_("Header"), renderer_compact_header, TRUE,
 378                                                      TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 379                                                      FALSE,
 380                                                      (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 381                                                      GINT_TO_POINTER(TRUE));
 382                         compact_column = column;
 383                         break;
 384
 385                 case MODEST_HEADER_VIEW_COLUMN_COMPACT_HEADER_OUT:
 386                         column = get_new_column (_("Header"), renderer_compact_header, TRUE,
 387                                                      TNY_GTK_HEADER_LIST_MODEL_FROM_COLUMN,
 388                                                      FALSE,
 389                                                      (GtkTreeCellDataFunc)_modest_header_view_compact_header_cell_data,
 390                                                      GINT_TO_POINTER(FALSE));
 391                         compact_column = column;
 392                         break;
 393
 394
 395                 case MODEST_HEADER_VIEW_COLUMN_SUBJECT:
 396                         column = get_new_column (_("Subject"), renderer_header, TRUE,
 397                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 398                                                  TRUE,
 399                                                  (GtkTreeCellDataFunc)_modest_header_view_header_cell_data,
 400                                                  NULL);
 401                         break;
 402
 403                 case MODEST_HEADER_VIEW_COLUMN_RECEIVED_DATE:
 404                         column = get_new_column (_("Received"), renderer_header, TRUE,
 405                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_RECEIVED_TIME_T_COLUMN,
 406                                                  TRUE,
 407                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 408                                                  GINT_TO_POINTER(TRUE));
 409                         break;
 410
 411                 case MODEST_HEADER_VIEW_COLUMN_SENT_DATE:
 412                         column = get_new_column (_("Sent"), renderer_header, TRUE,
 413                                                  TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN,
 414                                                  TRUE,
 415                                                  (GtkTreeCellDataFunc)_modest_header_view_date_cell_data,
 416                                                  GINT_TO_POINTER(FALSE));
 417                         break;
 418
 419                 case MODEST_HEADER_VIEW_COLUMN_SIZE:
 420                         column = get_new_column (_("Size"), renderer_header, TRUE,
 421                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 422                                                  FALSE,
 423                                                  (GtkTreeCellDataFunc)_modest_header_view_size_cell_data,
 424                                                  NULL);
 425                         break;
 426                 case MODEST_HEADER_VIEW_COLUMN_STATUS:
 427                         column = get_new_column (_("Status"), renderer_compact_date, TRUE,
 428                                                  TNY_GTK_HEADER_LIST_MODEL_MESSAGE_SIZE_COLUMN,
 429                                                  FALSE,
 430                                                  (GtkTreeCellDataFunc)_modest_header_view_status_cell_data,
 431                                                  NULL);
 432                         break;
 433
 434                 default:
 435                         g_return_val_if_reached(FALSE);
 436                 }
 437
 438                 /* we keep the column id around */
 439                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_COLUMN,
 440                                    GINT_TO_POINTER(col));
 441
 442                 /* we need this ptr when sorting the rows */
 443                 g_object_set_data (G_OBJECT(column), MODEST_HEADER_VIEW_PTR,
 444                                    self);
 445                 gtk_tree_view_append_column (GTK_TREE_VIEW(self), column);
 446         }
 447
 448         if (sortable) {
 449                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 450                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 451                                                  (GtkTreeIterCompareFunc) cmp_rows,
 452                                                  compact_column, NULL);
 453                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE (sortable),
 454                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 455                                                  (GtkTreeIterCompareFunc) cmp_subject_rows,
 456                                                  compact_column, NULL);
 457         }
 458
 459
 460         return TRUE;
 461 }
 462
 463 static void
 464 modest_header_view_init (ModestHeaderView *obj)
 465 {
 466         ModestHeaderViewPrivate *priv;
 467         guint i, j;
 468
 469         priv = MODEST_HEADER_VIEW_GET_PRIVATE(obj);
 470
 471         priv->folder  = NULL;
 472
 473         priv->monitor        = NULL;
 474         priv->observers_lock = g_mutex_new ();
 475
 476         /* Sort parameters */
 477         for (j=0; j < 2; j++) {
 478                 for (i=0; i < TNY_FOLDER_TYPE_NUM; i++) {
 479                         priv->sort_colid[j][i] = -1;
 480                         priv->sort_type[j][i] = GTK_SORT_DESCENDING;
 481                 }
 482         }
 483
 484         setup_drag_and_drop (GTK_TREE_VIEW (obj));
 485 }
 486
 487 static void
 488 modest_header_view_finalize (GObject *obj)
 489 {
 490         ModestHeaderView        *self;
 491         ModestHeaderViewPrivate *priv;
 492
 493         self = MODEST_HEADER_VIEW(obj);
 494         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 495
 496         g_mutex_lock (priv->observers_lock);
 497         if (priv->monitor) {
 498                 tny_folder_monitor_stop (priv->monitor);
 499                 g_object_unref (G_OBJECT (priv->monitor));
 500         }
 501         g_mutex_unlock (priv->observers_lock);
 502         g_mutex_free (priv->observers_lock);
 503
 504         if (priv->folder) {
 505                 tny_folder_remove_observer (priv->folder, TNY_FOLDER_OBSERVER (obj));
 506                 g_object_unref (G_OBJECT (priv->folder));
 507                 priv->folder   = NULL;
 508         }
 509
 510         G_OBJECT_CLASS(parent_class)->finalize (obj);
 511 }
 512
 513
 514 GtkWidget*
 515 modest_header_view_new (TnyFolder *folder, ModestHeaderViewStyle style)
 516 {
 517         GObject *obj;
 518         GtkTreeSelection *sel;
 519         ModestHeaderView *self;
 520         ModestHeaderViewPrivate *priv;
 521
 522         g_return_val_if_fail (style >= 0 && style < MODEST_HEADER_VIEW_STYLE_NUM,
 523                               NULL);
 524
 525         obj  = G_OBJECT(g_object_new(MODEST_TYPE_HEADER_VIEW, NULL));
 526         self = MODEST_HEADER_VIEW(obj);
 527         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 528
 529         modest_header_view_set_style   (self, style);
 530         modest_header_view_set_folder (self, NULL, NULL, NULL);
 531
 532         gtk_tree_view_columns_autosize (GTK_TREE_VIEW(obj));
 533         gtk_tree_view_set_fixed_height_mode (GTK_TREE_VIEW(obj),TRUE);
 534         gtk_tree_view_set_enable_search (GTK_TREE_VIEW(obj), TRUE);
 535
 536         gtk_tree_view_set_rules_hint (GTK_TREE_VIEW(obj),
 537                                       TRUE); /* alternating row colors */
 538         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 539
 540         g_signal_connect (sel, "changed",
 541                           G_CALLBACK(on_selection_changed), self);
 542
 543         g_signal_connect (self, "row-activated",
 544                           G_CALLBACK (on_header_row_activated), NULL);
 545
 546         g_signal_connect (self, "focus-in-event",
 547                           G_CALLBACK(on_focus_in), NULL);
 548
 549         return GTK_WIDGET(self);
 550 }
 551
 552
 553 TnyList *
 554 modest_header_view_get_selected_headers (ModestHeaderView *self)
 555 {
 556         GtkTreeSelection *sel;
 557         ModestHeaderViewPrivate *priv;
 558         TnyList *header_list = NULL;
 559         TnyHeader *header;
 560         GList *list, *tmp = NULL;
 561         GtkTreeModel *tree_model = NULL;
 562         GtkTreeIter iter;
 563
 564         g_return_val_if_fail (self, NULL);
 565
 566         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 567
 568         /* Get selected rows */
 569         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 570         list = gtk_tree_selection_get_selected_rows (sel, &tree_model);
 571
 572         if (list) {
 573                 header_list = tny_simple_list_new();
 574
 575                 list = g_list_reverse (list);
 576                 tmp = list;
 577                 while (tmp) {
 578                         /* get header from selection */
 579                         gtk_tree_model_get_iter (tree_model, &iter, (GtkTreePath *) (tmp->data));
 580                         gtk_tree_model_get (tree_model, &iter,
 581                                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 582                                             &header, -1);
 583                         /* Prepend to list */
 584                         tny_list_prepend (header_list, G_OBJECT (header));
 585                         g_object_unref (G_OBJECT (header));
 586
 587                         tmp = g_list_next (tmp);
 588                 }
 589                 /* Clean up*/
 590                 g_list_foreach (list, (GFunc) gtk_tree_path_free, NULL);
 591                 g_list_free (list);
 592         }
 593         return header_list;
 594 }
 595
 596
 597 /* scroll our list view so the selected item is visible */
 598 static void
 599 scroll_to_selected (ModestHeaderView *self, GtkTreeIter *iter, gboolean up)
 600 {
 601 #ifdef MODEST_PLATFORM_GNOME
 602
 603         GtkTreePath *selected_path;
 604         GtkTreePath *start, *end;
 605
 606         GtkTreeModel *model;
 607
 608         model         = gtk_tree_view_get_model (GTK_TREE_VIEW(self));
 609         selected_path = gtk_tree_model_get_path (model, iter);
 610
 611         start = gtk_tree_path_new ();
 612         end   = gtk_tree_path_new ();
 613
 614         gtk_tree_view_get_visible_range (GTK_TREE_VIEW(self), &start, &end);
 615
 616         if (gtk_tree_path_compare (selected_path, start) < 0 ||
 617             gtk_tree_path_compare (end, selected_path) < 0)
 618                 gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW(self),
 619                                               selected_path, NULL, TRUE,
 620                                               up ? 0.0 : 1.0,
 621                                               up ? 0.0 : 1.0);
 622         gtk_tree_path_free (selected_path);
 623         gtk_tree_path_free (start);
 624         gtk_tree_path_free (end);
 625
 626 #endif /* MODEST_PLATFORM_GNOME */
 627 }
 628
 629
 630 void
 631 modest_header_view_select_next (ModestHeaderView *self)
 632 {
 633         GtkTreeSelection *sel;
 634         GtkTreeIter iter;
 635         GtkTreeModel *model;
 636         GtkTreePath *path;
 637
 638         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 639         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 640         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 641                 /* Unselect previous path */
 642                 gtk_tree_selection_unselect_path (sel, path);
 643
 644                 /* Move path down and selects new one  */
 645                 if (gtk_tree_model_iter_next (model, &iter)) {
 646                         gtk_tree_selection_select_iter (sel, &iter);
 647                         scroll_to_selected (self, &iter, FALSE);
 648                 }
 649                 gtk_tree_path_free(path);
 650         }
 651
 652 }
 653
 654 void
 655 modest_header_view_select_prev (ModestHeaderView *self)
 656 {
 657         GtkTreeSelection *sel;
 658         GtkTreeIter iter;
 659         GtkTreeModel *model;
 660         GtkTreePath *path;
 661
 662         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
 663         path = get_selected_row (GTK_TREE_VIEW(self), &model);
 664         if ((path != NULL) && (gtk_tree_model_get_iter(model, &iter, path))) {
 665                 /* Unselect previous path */
 666                 gtk_tree_selection_unselect_path (sel, path);
 667
 668                 /* Move path up */
 669                 if (gtk_tree_path_prev (path)) {
 670                         gtk_tree_model_get_iter (model, &iter, path);
 671
 672                         /* Select the new one */
 673                         gtk_tree_selection_select_iter (sel, &iter);
 674                         scroll_to_selected (self, &iter, TRUE);
 675
 676                 }
 677                 gtk_tree_path_free (path);
 678         }
 679 }
 680
 681 GList*
 682 modest_header_view_get_columns (ModestHeaderView *self)
 683 {
 684         g_return_val_if_fail (self, FALSE);
 685         return gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 686 }
 687
 688
 689 gboolean
 690 modest_header_view_is_empty (ModestHeaderView *self)
 691 {
 692         g_return_val_if_fail (self, FALSE);
 693         return FALSE; /* FIXME */
 694 }
 695
 696
 697 gboolean
 698 modest_header_view_set_style (ModestHeaderView *self,
 699                               ModestHeaderViewStyle style)
 700 {
 701         ModestHeaderViewPrivate *priv;
 702         gboolean show_col_headers = FALSE;
 703         ModestHeaderViewStyle old_style;
 704
 705         g_return_val_if_fail (self, FALSE);
 706         g_return_val_if_fail (style >= 0 && MODEST_HEADER_VIEW_STYLE_NUM,
 707                               FALSE);
 708
 709         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 710         if (priv->style == style)
 711                 return TRUE; /* nothing to do */
 712
 713         switch (style) {
 714         case MODEST_HEADER_VIEW_STYLE_DETAILS:
 715                 show_col_headers = TRUE;
 716                 break;
 717         case MODEST_HEADER_VIEW_STYLE_TWOLINES:
 718                 break;
 719         default:
 720                 g_return_val_if_reached (FALSE);
 721         }
 722         gtk_tree_view_set_headers_visible   (GTK_TREE_VIEW(self), show_col_headers);
 723         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(self), show_col_headers);
 724
 725         old_style   = priv->style;
 726         priv->style = style;
 727
 728         return TRUE;
 729 }
 730
 731
 732 ModestHeaderViewStyle
 733 modest_header_view_get_style (ModestHeaderView *self)
 734 {
 735         g_return_val_if_fail (self, FALSE);
 736         return MODEST_HEADER_VIEW_GET_PRIVATE(self)->style;
 737 }
 738
 739 /*
 740  * This function sets a sortable model in the header view. It's just
 741  * used for developing purposes, because it only does a
 742  * gtk_tree_view_set_model
 743  */
 744 static void
 745 modest_header_view_set_model (GtkTreeView *header_view, GtkTreeModel *model)
 746 {
 747         GtkTreeModel *old_model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (header_view));
 748
 749         if (old_model_sort && GTK_IS_TREE_MODEL_SORT (old_model_sort)) {
 750                 GtkTreeModel *old_model;
 751                 ModestHeaderViewPrivate *priv;
 752
 753                 priv = MODEST_HEADER_VIEW_GET_PRIVATE (header_view);
 754                 old_model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (old_model_sort));
 755
 756                 /* Set new model */
 757                 gtk_tree_view_set_model (header_view, model);
 758         } else
 759                 gtk_tree_view_set_model (header_view, model);
 760
 761         return;
 762 }
 763
 764 TnyFolder*
 765 modest_header_view_get_folder (ModestHeaderView *self)
 766 {
 767         ModestHeaderViewPrivate *priv;
 768         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 769
 770         if (priv->folder)
 771                 g_object_ref (priv->folder);
 772
 773         return priv->folder;
 774 }
 775
 776 static void
 777 modest_header_view_set_folder_intern (ModestHeaderView *self, TnyFolder *folder)
 778 {
 779         TnyFolderType type;
 780         TnyList *headers;
 781         ModestHeaderViewPrivate *priv;
 782         GList *cols, *cursor;
 783         GtkTreeModel *sortable;
 784         guint sort_colid;
 785         GtkSortType sort_type;
 786
 787         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 788
 789         headers = TNY_LIST (tny_gtk_header_list_model_new ());
 790
 791         tny_gtk_header_list_model_set_folder (TNY_GTK_HEADER_LIST_MODEL(headers),
 792                                               folder, FALSE);
 793
 794         /* Add IDLE observer (monitor) and another folder observer for
 795            new messages (self) */
 796         g_mutex_lock (priv->observers_lock);
 797         if (priv->monitor) {
 798                 tny_folder_monitor_stop (priv->monitor);
 799                 g_object_unref (G_OBJECT (priv->monitor));
 800         }
 801         priv->monitor = TNY_FOLDER_MONITOR (tny_folder_monitor_new (folder));
 802         tny_folder_monitor_add_list (priv->monitor, TNY_LIST (headers));
 803         tny_folder_monitor_start (priv->monitor);
 804         tny_folder_add_observer (folder, TNY_FOLDER_OBSERVER (self));
 805         g_mutex_unlock (priv->observers_lock);
 806
 807         sortable = gtk_tree_model_sort_new_with_model (GTK_TREE_MODEL(headers));
 808         g_object_unref (G_OBJECT (headers));
 809
 810         /* install our special sorting functions */
 811         cursor = cols = gtk_tree_view_get_columns (GTK_TREE_VIEW(self));
 812
 813         /* Restore sort column id */
 814         if (cols) {
 815                 type  = modest_tny_folder_guess_folder_type (folder);
 816                 sort_colid = modest_header_view_get_sort_column_id (self, type);
 817                 sort_type = modest_header_view_get_sort_type (self, type);
 818                 gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 819                                                       sort_colid,
 820                                                       sort_type);
 821                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 822                                                  TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN,
 823                                                  (GtkTreeIterCompareFunc) cmp_rows,
 824                                                  cols->data, NULL);
 825                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE(sortable),
 826                                                  TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN,
 827                                                  (GtkTreeIterCompareFunc) cmp_subject_rows,
 828                                                  cols->data, NULL);
 829         }
 830
 831         /* Set new model */
 832         modest_header_view_set_model (GTK_TREE_VIEW (self), sortable);
 833         g_object_unref (G_OBJECT (sortable));
 834
 835         /* Free */
 836         g_list_free (cols);
 837 }
 838
 839 void
 840 modest_header_view_sort_by_column_id (ModestHeaderView *self,
 841                                       guint sort_colid,
 842                                       GtkSortType sort_type)
 843 {
 844         ModestHeaderViewPrivate *priv = NULL;
 845         GtkTreeModel *sortable = NULL;
 846         TnyFolderType type;
 847
 848         /* Get model and private data */
 849         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 850         sortable = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
 851
 852         /* Sort tree model */
 853         type  = modest_tny_folder_guess_folder_type (priv->folder);
 854         gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 855                                               sort_colid,
 856                                               sort_type);
 857         /* Store new sort parameters */
 858         modest_header_view_set_sort_params (self, sort_colid, sort_type, type);
 859
 860         /* Save GConf parameters */
 861 /*      modest_widget_memory_save (modest_runtime_get_conf(), */
 862 /*                                 G_OBJECT(self), "header-view"); */
 863
 864 }
 865
 866 void
 867 modest_header_view_set_sort_params (ModestHeaderView *self,
 868                                     guint sort_colid,
 869                                     GtkSortType sort_type,
 870                                     TnyFolderType type)
 871 {
 872         ModestHeaderViewPrivate *priv;
 873         ModestHeaderViewStyle style;
 874
 875         style = modest_header_view_get_style   (self);
 876         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 877
 878         priv->sort_colid[style][type] = sort_colid;
 879         priv->sort_type[style][type] = sort_type;
 880 }
 881
 882 gint
 883 modest_header_view_get_sort_column_id (ModestHeaderView *self,
 884                                        TnyFolderType type)
 885 {
 886         ModestHeaderViewPrivate *priv;
 887         ModestHeaderViewStyle style;
 888
 889         style = modest_header_view_get_style   (self);
 890         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 891
 892         return priv->sort_colid[style][type];
 893 }
 894
 895 GtkSortType
 896 modest_header_view_get_sort_type (ModestHeaderView *self,
 897                                   TnyFolderType type)
 898 {
 899         ModestHeaderViewPrivate *priv;
 900         ModestHeaderViewStyle style;
 901
 902         style = modest_header_view_get_style   (self);
 903         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 904
 905         return priv->sort_type[style][type];
 906 }
 907
 908 void
 909 modest_header_view_set_folder (ModestHeaderView *self,
 910                                TnyFolder *folder,
 911                                RefreshAsyncUserCallback callback,
 912                                gpointer user_data)
 913 {
 914         ModestHeaderViewPrivate *priv;
 915         ModestMailOperation *mail_op = NULL;
 916         ModestWindowMgr *mgr = NULL;
 917         GObject *source = NULL;
 918
 919         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 920
 921         if (priv->folder) {
 922                 g_mutex_lock (priv->observers_lock);
 923                 tny_folder_remove_observer (priv->folder, TNY_FOLDER_OBSERVER (self));
 924                 g_object_unref (priv->folder);
 925                 priv->folder = NULL;
 926                 g_mutex_unlock (priv->observers_lock);
 927         }
 928
 929         if (folder) {
 930
 931                 /* Get main window to use it as source of mail operation */
 932                 mgr = modest_runtime_get_window_mgr ();
 933                 source = G_OBJECT (modest_window_mgr_get_main_window (modest_runtime_get_window_mgr ()));
 934
 935                 /* Set folder in the model */
 936                 modest_header_view_set_folder_intern (self, folder);
 937
 938                 /* Pick my reference. Nothing to do with the mail operation */
 939                 priv->folder = g_object_ref (folder);
 940
 941                 /* no message selected */
 942                 g_signal_emit (G_OBJECT(self), signals[HEADER_SELECTED_SIGNAL], 0, NULL);
 943
 944                 /* Create the mail operation (source will be the parent widget) */
 945                 mail_op = modest_mail_operation_new (MODEST_MAIL_OPERATION_TYPE_RECEIVE, source);
 946                 modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
 947                                                  mail_op);
 948
 949                 /* Refresh the folder asynchronously */
 950                 modest_mail_operation_refresh_folder (mail_op, folder,
 951                                                       callback,
 952                                                       user_data);
 953
 954                 /* Free */
 955                 g_object_unref (mail_op);
 956
 957         } else {
 958                 g_mutex_lock (priv->observers_lock);
 959
 960                 if (priv->monitor) {
 961                         tny_folder_monitor_stop (priv->monitor);
 962                         g_object_unref (G_OBJECT (priv->monitor));
 963                         priv->monitor = NULL;
 964                 }
 965                 modest_header_view_set_model (GTK_TREE_VIEW (self), NULL);
 966
 967                 g_mutex_unlock (priv->observers_lock);
 968         }
 969 }
 970
 971 static void
 972 on_header_row_activated (GtkTreeView *treeview, GtkTreePath *path,
 973                          GtkTreeViewColumn *column, gpointer userdata)
 974 {
 975         ModestHeaderView *self = NULL;
 976         ModestHeaderViewPrivate *priv = NULL;
 977         GtkTreeIter iter;
 978         GtkTreeModel *model = NULL;
 979         TnyHeader *header;
 980
 981         self = MODEST_HEADER_VIEW (treeview);
 982         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
 983
 984         model = gtk_tree_view_get_model (treeview);
 985
 986         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
 987                 return;
 988
 989         /* get the first selected item */
 990         gtk_tree_model_get (model, &iter,
 991                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 992                             &header, -1);
 993         /* Emit signal */
 994         g_signal_emit (G_OBJECT(self),
 995                        signals[HEADER_ACTIVATED_SIGNAL],
 996                        0, header);
 997
 998         /* Free */
 999         g_object_unref (G_OBJECT (header));
1000
1001 }
1002
1003 static void
1004 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
1005 {
1006         GtkTreeModel *model;
1007         TnyHeader *header;
1008         GtkTreePath *path = NULL;
1009         GtkTreeIter iter;
1010         ModestHeaderView *self;
1011         ModestHeaderViewPrivate *priv;
1012         GList *selected = NULL;
1013
1014         g_return_if_fail (sel);
1015         g_return_if_fail (user_data);
1016
1017         self = MODEST_HEADER_VIEW (user_data);
1018         priv = MODEST_HEADER_VIEW_GET_PRIVATE(self);
1019
1020         selected = gtk_tree_selection_get_selected_rows (sel, &model);
1021         if (selected != NULL)
1022                 path = (GtkTreePath *) selected->data;
1023         if ((path == NULL) || (!gtk_tree_model_get_iter(model, &iter, path)))
1024                 return; /* msg was _un_selected */
1025
1026         gtk_tree_model_get (model, &iter,
1027                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
1028                             &header, -1);
1029
1030         /* Emit signal */
1031         g_signal_emit (G_OBJECT(self),
1032                        signals[HEADER_SELECTED_SIGNAL],
1033                        0, header);
1034
1035         g_object_unref (G_OBJECT (header));
1036         gtk_tree_path_free(path);
1037 }
1038
1039
1040 /* PROTECTED method. It's useful when we want to force a given
1041    selection to reload a msg. For example if we have selected a header
1042    in offline mode, when Modest become online, we want to reload the
1043    message automatically without an user click over the header */
1044 void
1045 _modest_header_view_change_selection (GtkTreeSelection *selection,
1046                                       gpointer user_data)
1047 {
1048         g_return_if_fail (GTK_IS_TREE_SELECTION (selection));
1049         g_return_if_fail (MODEST_IS_HEADER_VIEW (user_data));
1050
1051         on_selection_changed (selection, user_data);
1052 }
1053
1054
1055 static gint
1056 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
1057           gpointer user_data)
1058 {
1059         gint col_id;
1060         gint t1, t2;
1061         gint val1, val2;
1062         gint cmp;
1063 /*      static int counter = 0; */
1064
1065         g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN(user_data), 0);
1066 /*      col_id = gtk_tree_sortable_get_sort_column_id (GTK_TREE_SORTABLE (tree_model)); */
1067         col_id = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(user_data), MODEST_HEADER_VIEW_FLAG_SORT));
1068
1069 /*      if (!(++counter % 100)) { */
1070 /*              GObject *header_view = g_object_get_data(G_OBJECT(user_data), */
1071 /*                                                       MODEST_HEADER_VIEW_PTR); */
1072 /*              g_signal_emit (header_view, */
1073 /*                             signals[STATUS_UPDATE_SIGNAL], */
1074 /*                             0, _("Sorting..."), 0, 0); */
1075 /*      } */
1076         switch (col_id) {
1077         case TNY_HEADER_FLAG_ATTACHMENTS:
1078
1079                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1080                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1, -1);
1081                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1082                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2, -1);
1083
1084                 cmp = (val1 & TNY_HEADER_FLAG_ATTACHMENTS) -
1085                         (val2 & TNY_HEADER_FLAG_ATTACHMENTS);
1086
1087                 return cmp ? cmp : t1 - t2;
1088
1089         case TNY_HEADER_FLAG_PRIORITY:
1090                 gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val1,
1091                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1,-1);
1092                 gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_FLAGS_COLUMN, &val2,
1093                                     TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2,-1);
1094
1095                 /* This is for making priority values respect the intuitive sort relationship
1096                  * as HIGH is 11, LOW is 01, and we put NORMAL AS 10 (2) */
1097                 if (val1 == 0) val1 = 2;
1098                 if (val2 == 0) val2 = 2;
1099
1100                 cmp =  (val1 & TNY_HEADER_FLAG_PRIORITY) - (val2 & TNY_HEADER_FLAG_PRIORITY);
1101
1102                 return cmp ? cmp : t1 - t2;
1103
1104         default:
1105                 return &iter1 - &iter2; /* oughhhh  */
1106         }
1107 }
1108
1109 static gint
1110 cmp_subject_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
1111                   gpointer user_data)
1112 {
1113         gint t1, t2;
1114         gchar *val1, *val2;
1115         gint cmp;
1116 /*      static int counter = 0; */
1117
1118         g_return_val_if_fail (GTK_IS_TREE_VIEW_COLUMN(user_data), 0);
1119
1120         gtk_tree_model_get (tree_model, iter1, TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &val1,
1121                             TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t1, -1);
1122         gtk_tree_model_get (tree_model, iter2, TNY_GTK_HEADER_LIST_MODEL_SUBJECT_COLUMN, &val2,
1123                             TNY_GTK_HEADER_LIST_MODEL_DATE_SENT_TIME_T_COLUMN, &t2, -1);
1124
1125         cmp = modest_text_utils_utf8_strcmp (val1 + modest_text_utils_get_subject_prefix_len(val1),
1126                                              val2 + modest_text_utils_get_subject_prefix_len(val2),
1127                                              TRUE);
1128         g_free (val1);
1129         g_free (val2);
1130         return cmp;
1131 }
1132
1133 /* Drag and drop stuff */
1134 static void
1135 drag_data_get_cb (GtkWidget *widget, GdkDragContext *context,
1136                   GtkSelectionData *selection_data,
1137                   guint info,  guint time, gpointer data)
1138 {
1139         GtkTreeModel *model = NULL;
1140         GtkTreeIter iter;
1141         GtkTreePath *source_row = NULL;
1142
1143         source_row = get_selected_row (GTK_TREE_VIEW (widget), &model);
1144         if ((source_row == NULL) || (!gtk_tree_model_get_iter(model, &iter, source_row))) return;
1145
1146         switch (info) {
1147         case MODEST_HEADER_ROW:
1148                 gtk_tree_set_row_drag_data (selection_data, model, source_row);
1149                 break;
1150         case MODEST_MSG: {
1151                 TnyHeader *hdr;
1152                 gtk_tree_model_get (model, &iter,
1153                                     TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN, &hdr,
1154                                     -1);
1155                 if (hdr) {
1156                         g_object_unref (G_OBJECT(hdr));
1157                 }
1158                 break;
1159         }
1160         default:
1161                 g_message ("%s: default switch case.", __FUNCTION__);
1162         }
1163
1164         gtk_tree_path_free (source_row);
1165 }
1166
1167 /* Header view drag types */
1168 const GtkTargetEntry header_view_drag_types[] = {
1169         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP, MODEST_HEADER_ROW },
1170         { "text/uri-list",      0,                   MODEST_MSG },
1171 };
1172
1173 static void
1174 setup_drag_and_drop (GtkTreeView *self)
1175 {
1176         gtk_drag_source_set (GTK_WIDGET (self),
1177                              GDK_BUTTON1_MASK,
1178                              header_view_drag_types,
1179                              G_N_ELEMENTS (header_view_drag_types),
1180                              GDK_ACTION_MOVE | GDK_ACTION_COPY);
1181
1182         g_signal_connect(G_OBJECT (self), "drag_data_get",
1183                          G_CALLBACK(drag_data_get_cb), NULL);
1184 }
1185
1186 static GtkTreePath *
1187 get_selected_row (GtkTreeView *self, GtkTreeModel **model)
1188 {
1189         GtkTreePath *path = NULL;
1190         GtkTreeSelection *sel = NULL;
1191         GList *rows = NULL;
1192
1193         sel   = gtk_tree_view_get_selection(self);
1194         rows = gtk_tree_selection_get_selected_rows (sel, model);
1195
1196         if ((rows == NULL) || (g_list_length(rows) != 1))
1197                 goto frees;
1198
1199         path = gtk_tree_path_copy(g_list_nth_data (rows, 0));
1200
1201
1202         /* Free */
1203  frees:
1204         g_list_foreach(rows,(GFunc) gtk_tree_path_free, NULL);
1205         g_list_free(rows);
1206
1207         return path;
1208 }
1209
1210 /*
1211  * This function moves the tree view scroll to the current selected
1212  * row when the widget grabs the focus
1213  */
1214 static gboolean
1215 on_focus_in (GtkWidget     *self,
1216              GdkEventFocus *event,
1217              gpointer       user_data)
1218 {
1219         GtkTreeSelection *selection;
1220         GtkTreeModel *model;
1221         GList *selected = NULL;
1222         GtkTreePath *selected_path = NULL;
1223
1224         model = gtk_tree_view_get_model (GTK_TREE_VIEW (self));
1225         if (!model)
1226                 return FALSE;
1227
1228         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
1229         /* If none selected yet, pick the first one */
1230         if (gtk_tree_selection_count_selected_rows (selection) == 0) {
1231                 GtkTreeIter iter;
1232                 GtkTreePath *path;
1233
1234                 /* Return if the model is empty */
1235                 if (!gtk_tree_model_get_iter_first (model, &iter))
1236                         return FALSE;
1237
1238                 path = gtk_tree_model_get_path (model, &iter);
1239                 gtk_tree_selection_select_path (selection, path);
1240                 gtk_tree_path_free (path);
1241         }
1242
1243         /* Need to get the all the rows because is selection multiple */
1244         selected = gtk_tree_selection_get_selected_rows (selection, &model);
1245         if (selected == NULL) return FALSE;
1246         selected_path = (GtkTreePath *) selected->data;
1247
1248         /* Check if we need to scroll */
1249         #if GTK_CHECK_VERSION(2, 8, 0) /* TODO: gtk_tree_view_get_visible_range() is only available in GTK+ 2.8 */
1250         GtkTreePath *start_path = NULL;
1251         GtkTreePath *end_path = NULL;
1252         if (gtk_tree_view_get_visible_range (GTK_TREE_VIEW (self),
1253                                              &start_path,
1254                                              &end_path)) {
1255
1256                 if ((gtk_tree_path_compare (start_path, selected_path) != -1) ||
1257                     (gtk_tree_path_compare (end_path, selected_path) != 1)) {
1258
1259                         /* Scroll to first path */
1260                         gtk_tree_view_scroll_to_cell (GTK_TREE_VIEW (self),
1261                                                       selected_path,
1262                                                       NULL,
1263                                                       TRUE,
1264                                                       0.5,
1265                                                       0.0);
1266                 }
1267         }
1268         #endif /* GTK_CHECK_VERSION */
1269
1270         /* Frees */
1271         g_list_foreach (selected, (GFunc) gtk_tree_path_free, NULL);
1272         g_list_free (selected);
1273
1274         return FALSE;
1275 }
1276
1277 static gboolean
1278 idle_notify_added_headers (gpointer data)
1279 {
1280         modest_platform_on_new_msg ();
1281
1282         return FALSE;
1283 }
1284
1285 static void
1286 idle_notify_headers_count_changed_destroy (gpointer data)
1287 {
1288         HeadersCountChangedHelper *helper = NULL;
1289
1290         g_return_if_fail (data != NULL);
1291         helper = (HeadersCountChangedHelper *) data;
1292
1293         g_object_unref (helper->change);
1294         g_slice_free (HeadersCountChangedHelper, helper);
1295 }
1296
1297 static gboolean
1298 idle_notify_headers_count_changed (gpointer data)
1299 {
1300         TnyFolder *folder = NULL;
1301         ModestHeaderViewPrivate *priv = NULL;
1302         HeadersCountChangedHelper *helper = NULL;
1303
1304         g_return_val_if_fail (data != NULL, FALSE);
1305         helper = (HeadersCountChangedHelper *) data;
1306         g_return_val_if_fail (MODEST_IS_HEADER_VIEW(helper->self), FALSE);
1307         g_return_val_if_fail (TNY_FOLDER_CHANGE(helper->change), FALSE);
1308
1309         folder = tny_folder_change_get_folder (helper->change);
1310
1311         priv = MODEST_HEADER_VIEW_GET_PRIVATE (helper->self);
1312         g_mutex_lock (priv->observers_lock);
1313
1314         g_signal_emit (G_OBJECT(helper->self), signals[MSG_COUNT_CHANGED_SIGNAL], 0, folder, helper->change);
1315
1316         g_mutex_unlock (priv->observers_lock);
1317
1318         return FALSE;
1319 }
1320
1321 static void
1322 folder_monitor_update (TnyFolderObserver *self,
1323                        TnyFolderChange *change)
1324 {
1325         TnyFolderChangeChanged changed;
1326         HeadersCountChangedHelper *helper = NULL;
1327
1328         changed = tny_folder_change_get_changed (change);
1329
1330         /* We need an idle because this function is called from within
1331            a thread, so it could cause problems if the modest platform
1332            code calls dbus for example */
1333         if (changed & TNY_FOLDER_CHANGE_CHANGED_ADDED_HEADERS)
1334                 g_idle_add (idle_notify_added_headers, NULL);
1335
1336         /* Check folder count */
1337         if ((changed & TNY_FOLDER_CHANGE_CHANGED_ADDED_HEADERS) ||
1338             (changed & TNY_FOLDER_CHANGE_CHANGED_REMOVED_HEADERS)) {
1339                 helper = g_slice_new0 (HeadersCountChangedHelper);
1340                 helper->self = MODEST_HEADER_VIEW(self);
1341                 helper->change = g_object_ref(change);
1342
1343                 g_idle_add_full (G_PRIORITY_DEFAULT,
1344                                  idle_notify_headers_count_changed,
1345                                  helper,
1346                                  idle_notify_headers_count_changed_destroy);
1347         }
1348 }
1349
1350 void
1351 modest_header_view_clear (ModestHeaderView *self)
1352 {
1353         modest_header_view_set_folder (self, NULL, NULL, NULL);
1354 }