vcs.maemo.org Git - modest/blob - src/widgets/modest-folder-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 <string.h>
  32 #include <gdk/gdkkeysyms.h>
  33 #include <tny-account-store-view.h>
  34 #include <tny-gtk-account-list-model.h>
  35 #include <tny-gtk-folder-store-tree-model.h>
  36 #include <tny-gtk-header-list-model.h>
  37 #include <tny-folder.h>
  38 #include <tny-account-store.h>
  39 #include <tny-account.h>
  40 #include <tny-folder.h>
  41 #include <tny-camel-folder.h>
  42 #include <tny-simple-list.h>
  43 #include <modest-tny-folder.h>
  44 #include <modest-marshal.h>
  45 #include <modest-icon-names.h>
  46 #include <modest-tny-account-store.h>
  47 #include <modest-text-utils.h>
  48 #include <modest-runtime.h>
  49 #include "modest-folder-view.h"
  50 #include <modest-dnd.h>
  51 #include <modest-platform.h>
  52
  53 /* 'private'/'protected' functions */
  54 static void modest_folder_view_class_init  (ModestFolderViewClass *klass);
  55 static void modest_folder_view_init        (ModestFolderView *obj);
  56 static void modest_folder_view_finalize    (GObject *obj);
  57
  58 static void         tny_account_store_view_init (gpointer g,
  59                                                  gpointer iface_data);
  60
  61 static void         modest_folder_view_set_account_store (TnyAccountStoreView *self,
  62                                                           TnyAccountStore     *account_store);
  63
  64 static gboolean     update_model           (ModestFolderView *self,
  65                                             ModestTnyAccountStore *account_store);
  66
  67 static void         on_selection_changed   (GtkTreeSelection *sel, gpointer data);
  68
  69 static void         on_account_update      (TnyAccountStore *account_store,
  70                                             const gchar *account,
  71                                             gpointer user_data);
  72
  73 static void         on_accounts_reloaded   (TnyAccountStore *store,
  74                                             gpointer user_data);
  75
  76 static gint         cmp_rows               (GtkTreeModel *tree_model,
  77                                             GtkTreeIter *iter1,
  78                                             GtkTreeIter *iter2,
  79                                             gpointer user_data);
  80
  81 static gboolean     filter_row             (GtkTreeModel *model,
  82                                             GtkTreeIter *iter,
  83                                             gpointer data);
  84
  85 static gboolean     on_key_pressed         (GtkWidget *self,
  86                                             GdkEventKey *event,
  87                                             gpointer user_data);
  88
  89 static void         on_configuration_key_changed         (ModestConf* conf,
  90                                                           const gchar *key,
  91                                                           ModestConfEvent event,
  92                                                           ModestFolderView *self);
  93
  94 /* DnD functions */
  95 static void         on_drag_data_get       (GtkWidget *widget,
  96                                             GdkDragContext *context,
  97                                             GtkSelectionData *selection_data,
  98                                             guint info,
  99                                             guint time,
 100                                             gpointer data);
 101
 102 static void         on_drag_data_received  (GtkWidget *widget,
 103                                             GdkDragContext *context,
 104                                             gint x,
 105                                             gint y,
 106                                             GtkSelectionData *selection_data,
 107                                             guint info,
 108                                             guint time,
 109                                             gpointer data);
 110
 111 static gboolean     on_drag_motion         (GtkWidget      *widget,
 112                                             GdkDragContext *context,
 113                                             gint            x,
 114                                             gint            y,
 115                                             guint           time,
 116                                             gpointer        user_data);
 117
 118 static gint         expand_row_timeout     (gpointer data);
 119
 120 static void         setup_drag_and_drop    (GtkTreeView *self);
 121
 122 enum {
 123         FOLDER_SELECTION_CHANGED_SIGNAL,
 124         FOLDER_DISPLAY_NAME_CHANGED_SIGNAL,
 125         LAST_SIGNAL
 126 };
 127
 128 typedef struct _ModestFolderViewPrivate ModestFolderViewPrivate;
 129 struct _ModestFolderViewPrivate {
 130         TnyAccountStore      *account_store;
 131         TnyFolderStore       *cur_folder_store;
 132
 133         gulong                account_update_signal;
 134         gulong                changed_signal;
 135         gulong                accounts_reloaded_signal;
 136
 137         GtkTreeSelection     *cur_selection;
 138         TnyFolderStoreQuery  *query;
 139         guint                 timer_expander;
 140
 141         gchar                *local_account_name;
 142         ModestFolderViewStyle style;
 143 };
 144 #define MODEST_FOLDER_VIEW_GET_PRIVATE(o)                       \
 145         (G_TYPE_INSTANCE_GET_PRIVATE((o),                       \
 146                                      MODEST_TYPE_FOLDER_VIEW,   \
 147                                      ModestFolderViewPrivate))
 148 /* globals */
 149 static GObjectClass *parent_class = NULL;
 150
 151 static guint signals[LAST_SIGNAL] = {0};
 152
 153 GType
 154 modest_folder_view_get_type (void)
 155 {
 156         static GType my_type = 0;
 157         if (!my_type) {
 158                 static const GTypeInfo my_info = {
 159                         sizeof(ModestFolderViewClass),
 160                         NULL,           /* base init */
 161                         NULL,           /* base finalize */
 162                         (GClassInitFunc) modest_folder_view_class_init,
 163                         NULL,           /* class finalize */
 164                         NULL,           /* class data */
 165                         sizeof(ModestFolderView),
 166                         1,              /* n_preallocs */
 167                         (GInstanceInitFunc) modest_folder_view_init,
 168                         NULL
 169                 };
 170
 171                 static const GInterfaceInfo tny_account_store_view_info = {
 172                         (GInterfaceInitFunc) tny_account_store_view_init, /* interface_init */
 173                         NULL,         /* interface_finalize */
 174                         NULL          /* interface_data */
 175                 };
 176
 177
 178                 my_type = g_type_register_static (GTK_TYPE_TREE_VIEW,
 179                                                   "ModestFolderView",
 180                                                   &my_info, 0);
 181
 182                 g_type_add_interface_static (my_type,
 183                                              TNY_TYPE_ACCOUNT_STORE_VIEW,
 184                                              &tny_account_store_view_info);
 185         }
 186         return my_type;
 187 }
 188
 189 static void
 190 modest_folder_view_class_init (ModestFolderViewClass *klass)
 191 {
 192         GObjectClass *gobject_class;
 193         gobject_class = (GObjectClass*) klass;
 194
 195         parent_class            = g_type_class_peek_parent (klass);
 196         gobject_class->finalize = modest_folder_view_finalize;
 197
 198         g_type_class_add_private (gobject_class,
 199                                   sizeof(ModestFolderViewPrivate));
 200
 201         signals[FOLDER_SELECTION_CHANGED_SIGNAL] =
 202                 g_signal_new ("folder_selection_changed",
 203                               G_TYPE_FROM_CLASS (gobject_class),
 204                               G_SIGNAL_RUN_FIRST,
 205                               G_STRUCT_OFFSET (ModestFolderViewClass,
 206                                                folder_selection_changed),
 207                               NULL, NULL,
 208                               modest_marshal_VOID__POINTER_BOOLEAN,
 209                               G_TYPE_NONE, 2, G_TYPE_POINTER, G_TYPE_BOOLEAN);
 210
 211         /*
 212          * This signal is emitted whenever the currently selected
 213          * folder display name is computed. Note that the name could
 214          * be different to the folder name, because we could append
 215          * the unread messages count to the folder name to build the
 216          * folder display name
 217          */
 218         signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL] =
 219                 g_signal_new ("folder-display-name-changed",
 220                               G_TYPE_FROM_CLASS (gobject_class),
 221                               G_SIGNAL_RUN_FIRST,
 222                               G_STRUCT_OFFSET (ModestFolderViewClass,
 223                                                folder_display_name_changed),
 224                               NULL, NULL,
 225                               g_cclosure_marshal_VOID__STRING,
 226                               G_TYPE_NONE, 1, G_TYPE_STRING);
 227 }
 228
 229
 230
 231 static void
 232 text_cell_data  (GtkTreeViewColumn *column,  GtkCellRenderer *renderer,
 233                  GtkTreeModel *tree_model,  GtkTreeIter *iter,  gpointer data)
 234 {
 235         ModestFolderViewPrivate *priv;
 236         GObject *rendobj;
 237         gchar *fname = NULL;
 238         gint unread, all;
 239         TnyFolderType type;
 240         GObject *instance = NULL;
 241
 242         g_return_if_fail (column);
 243         g_return_if_fail (tree_model);
 244
 245         gtk_tree_model_get (tree_model, iter,
 246                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &fname,
 247                             TNY_GTK_FOLDER_STORE_TREE_MODEL_ALL_COLUMN, &all,
 248                             TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN, &unread,
 249                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 250                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &instance,
 251                             -1);
 252         rendobj = G_OBJECT(renderer);
 253
 254         if (!fname)
 255                 return;
 256
 257         if (!instance) {
 258                 g_free (fname);
 259                 return;
 260         }
 261
 262
 263         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE (data);
 264
 265         if (type != TNY_FOLDER_TYPE_ROOT) {
 266                 gint number;
 267
 268                 if (modest_tny_folder_is_local_folder (TNY_FOLDER (instance))) {
 269                         TnyFolderType type;
 270                         type = modest_tny_folder_get_local_folder_type (TNY_FOLDER (instance));
 271                         if (type != TNY_FOLDER_TYPE_UNKNOWN) {
 272                                 g_free (fname);
 273                                 fname = g_strdup(modest_local_folder_info_get_type_display_name (type));
 274                         }
 275                 }
 276
 277                 /* Select the number to show */
 278                 if ((type == TNY_FOLDER_TYPE_DRAFTS) || (type == TNY_FOLDER_TYPE_OUTBOX))
 279                         number = all;
 280                 else
 281                         number = unread;
 282
 283                 /* Use bold font style if there are unread messages */
 284                 if (unread > 0) {
 285                         gchar *folder_title = g_strdup_printf ("%s (%d)", fname, unread);
 286                         g_object_set (rendobj,"text", folder_title,  "weight", 800, NULL);
 287                         if (G_OBJECT (priv->cur_folder_store) == instance)
 288                                 g_signal_emit (G_OBJECT(data),
 289                                                signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL], 0,
 290                                                folder_title);
 291                         g_free (folder_title);
 292                 } else {
 293                         g_object_set (rendobj,"text", fname, "weight", 400, NULL);
 294                         if (G_OBJECT (priv->cur_folder_store) == instance)
 295                                 g_signal_emit (G_OBJECT(data),
 296                                                signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL], 0,
 297                                                fname);
 298                 }
 299
 300         } else {
 301                 const gchar *account_name = NULL;
 302                 const gchar *account_id = NULL;
 303
 304                 /* If it's a server account */
 305                 account_id = tny_account_get_id (TNY_ACCOUNT (instance));
 306                 if (!strcmp (account_id, MODEST_LOCAL_FOLDERS_ACCOUNT_ID)) {
 307                         account_name = priv->local_account_name;
 308                 } else {
 309                         if (!strcmp (account_id, MODEST_MMC_ACCOUNT_ID)) {
 310                                 /* TODO: get MMC card name */
 311                         } else {
 312                                 account_name = fname;
 313                         }
 314                 }
 315
 316                 /* Notify display name observers */
 317                 if (G_OBJECT (priv->cur_folder_store) == instance)
 318                         g_signal_emit (G_OBJECT(data),
 319                                        signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL], 0,
 320                                        account_name);
 321
 322                 /* Use bold font style */
 323                 g_object_set (rendobj,"text", account_name, "weight", 800, NULL);
 324         }
 325
 326         g_object_unref (G_OBJECT (instance));
 327         g_free (fname);
 328 }
 329
 330
 331
 332 static void
 333 icon_cell_data  (GtkTreeViewColumn *column,  GtkCellRenderer *renderer,
 334                  GtkTreeModel *tree_model,  GtkTreeIter *iter, gpointer data)
 335 {
 336         GObject *rendobj, *instance;
 337         GdkPixbuf *pixbuf;
 338         TnyFolderType type;
 339         gchar *fname = NULL;
 340         const gchar *account_id = NULL;
 341         gint unread;
 342
 343         rendobj = G_OBJECT(renderer);
 344         gtk_tree_model_get (tree_model, iter,
 345                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 346                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &fname,
 347                             TNY_GTK_FOLDER_STORE_TREE_MODEL_UNREAD_COLUMN, &unread,
 348                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &instance,
 349                             -1);
 350
 351         if (!fname)
 352                 return;
 353
 354         if (!instance) {
 355                 g_free (fname);
 356                 return;
 357         }
 358
 359         if (type == TNY_FOLDER_TYPE_NORMAL || type == TNY_FOLDER_TYPE_UNKNOWN) {
 360                 type = modest_tny_folder_guess_folder_type_from_name (fname);
 361         }
 362
 363         switch (type) {
 364         case TNY_FOLDER_TYPE_ROOT:
 365                 account_id = tny_account_get_id (TNY_ACCOUNT (instance));
 366                 if (!strcmp (account_id, MODEST_LOCAL_FOLDERS_ACCOUNT_ID)) {
 367                         pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_LOCAL_FOLDERS);
 368                 } else {
 369                         if (!strcmp (account_id, MODEST_MMC_ACCOUNT_ID))
 370                                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_MMC);
 371                         else
 372                                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_ACCOUNT);
 373                 }
 374                 break;
 375         case TNY_FOLDER_TYPE_INBOX:
 376                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_INBOX);
 377                 break;
 378         case TNY_FOLDER_TYPE_OUTBOX:
 379                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_OUTBOX);
 380                 break;
 381         case TNY_FOLDER_TYPE_JUNK:
 382                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_JUNK);
 383                 break;
 384         case TNY_FOLDER_TYPE_SENT:
 385                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_SENT);
 386                 break;
 387         case TNY_FOLDER_TYPE_TRASH:
 388                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_TRASH);
 389                 break;
 390         case TNY_FOLDER_TYPE_DRAFTS:
 391                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_DRAFTS);
 392                 break;
 393         case TNY_FOLDER_TYPE_NORMAL:
 394         default:
 395                 pixbuf = modest_platform_get_icon (MODEST_FOLDER_ICON_NORMAL);
 396                 break;
 397         }
 398         g_object_unref (G_OBJECT (instance));
 399         g_free (fname);
 400
 401         /* Set pixbuf */
 402         g_object_set (rendobj, "pixbuf", pixbuf, NULL);
 403 }
 404
 405 static void
 406 modest_folder_view_init (ModestFolderView *obj)
 407 {
 408         ModestFolderViewPrivate *priv;
 409         GtkTreeViewColumn *column;
 410         GtkCellRenderer *renderer;
 411         GtkTreeSelection *sel;
 412         ModestConf *conf;
 413
 414         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(obj);
 415
 416         priv->timer_expander = 0;
 417         priv->account_store  = NULL;
 418         priv->cur_folder_store     = NULL;
 419         priv->query          = NULL;
 420         priv->style          = MODEST_FOLDER_VIEW_STYLE_SHOW_ALL;
 421
 422         /* Initialize the local account name */
 423         conf = modest_runtime_get_conf();
 424         priv->local_account_name = modest_conf_get_string (conf, MODEST_CONF_DEVICE_NAME, NULL);
 425
 426         /* Build treeview */
 427         column = gtk_tree_view_column_new ();
 428
 429         renderer = gtk_cell_renderer_pixbuf_new();
 430         gtk_tree_view_column_pack_start (column, renderer, FALSE);
 431         gtk_tree_view_column_set_cell_data_func(column, renderer,
 432                                                 icon_cell_data, obj, NULL);
 433
 434         renderer = gtk_cell_renderer_text_new();
 435         gtk_tree_view_column_pack_start (column, renderer, FALSE);
 436         gtk_tree_view_column_set_cell_data_func(column, renderer,
 437                                                 text_cell_data, obj, NULL);
 438
 439         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(obj));
 440         gtk_tree_selection_set_mode (sel, GTK_SELECTION_SINGLE);
 441
 442         gtk_tree_view_column_set_spacing (column, 2);
 443         gtk_tree_view_column_set_resizable (column, TRUE);
 444         gtk_tree_view_column_set_fixed_width (column, TRUE);
 445         gtk_tree_view_set_headers_clickable (GTK_TREE_VIEW(obj), FALSE);
 446         gtk_tree_view_set_enable_search     (GTK_TREE_VIEW(obj), FALSE);
 447
 448         gtk_tree_view_append_column (GTK_TREE_VIEW(obj),column);
 449
 450         /* Setup drag and drop */
 451         setup_drag_and_drop (GTK_TREE_VIEW(obj));
 452
 453         /* Connect signals */
 454         g_signal_connect (G_OBJECT (obj),
 455                           "key-press-event",
 456                           G_CALLBACK (on_key_pressed), NULL);
 457
 458         /*
 459          * Track changes in the local account name (in the device it
 460          * will be the device name)
 461          */
 462         g_signal_connect (G_OBJECT(conf),
 463                           "key_changed",
 464                           G_CALLBACK(on_configuration_key_changed), obj);
 465
 466 }
 467
 468 static void
 469 tny_account_store_view_init (gpointer g, gpointer iface_data)
 470 {
 471         TnyAccountStoreViewIface *klass = (TnyAccountStoreViewIface *)g;
 472
 473         klass->set_account_store_func = modest_folder_view_set_account_store;
 474
 475         return;
 476 }
 477
 478 static void
 479 modest_folder_view_finalize (GObject *obj)
 480 {
 481         ModestFolderViewPrivate *priv;
 482         GtkTreeSelection    *sel;
 483
 484         g_return_if_fail (obj);
 485
 486         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(obj);
 487
 488         if (priv->timer_expander != 0) {
 489                 g_source_remove (priv->timer_expander);
 490                 priv->timer_expander = 0;
 491         }
 492
 493         if (priv->account_store) {
 494                 g_signal_handler_disconnect (G_OBJECT(priv->account_store),
 495                                              priv->account_update_signal);
 496                 g_signal_handler_disconnect (G_OBJECT(priv->account_store),
 497                                              priv->accounts_reloaded_signal);
 498                 g_object_unref (G_OBJECT(priv->account_store));
 499                 priv->account_store = NULL;
 500         }
 501
 502         if (priv->query) {
 503                 g_object_unref (G_OBJECT (priv->query));
 504                 priv->query = NULL;
 505         }
 506
 507         sel = gtk_tree_view_get_selection (GTK_TREE_VIEW(obj));
 508         if (sel)
 509                 g_signal_handler_disconnect (G_OBJECT(sel), priv->changed_signal);
 510
 511         g_free (priv->local_account_name);
 512
 513         G_OBJECT_CLASS(parent_class)->finalize (obj);
 514 }
 515
 516
 517 static void
 518 modest_folder_view_set_account_store (TnyAccountStoreView *self, TnyAccountStore *account_store)
 519 {
 520         ModestFolderViewPrivate *priv;
 521         TnyDevice *device;
 522
 523         g_return_if_fail (MODEST_IS_FOLDER_VIEW (self));
 524         g_return_if_fail (TNY_IS_ACCOUNT_STORE (account_store));
 525
 526         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
 527         device = tny_account_store_get_device (account_store);
 528
 529         if (G_UNLIKELY (priv->account_store)) {
 530
 531                 if (g_signal_handler_is_connected (G_OBJECT (priv->account_store),
 532                                                    priv->account_update_signal))
 533                         g_signal_handler_disconnect (G_OBJECT (priv->account_store),
 534                                                      priv->account_update_signal);
 535                 if (g_signal_handler_is_connected (G_OBJECT (priv->account_store),
 536                                                    priv->accounts_reloaded_signal))
 537                         g_signal_handler_disconnect (G_OBJECT (priv->account_store),
 538                                                      priv->accounts_reloaded_signal);
 539
 540                 g_object_unref (G_OBJECT (priv->account_store));
 541         }
 542
 543         priv->account_store = g_object_ref (G_OBJECT (account_store));
 544
 545         priv->account_update_signal =
 546                 g_signal_connect (G_OBJECT(account_store), "account_update",
 547                                   G_CALLBACK (on_account_update), self);
 548
 549         priv->accounts_reloaded_signal =
 550                 g_signal_connect (G_OBJECT(account_store), "accounts_reloaded",
 551                                   G_CALLBACK (on_accounts_reloaded), self);
 552
 553         if (!update_model (MODEST_FOLDER_VIEW (self),
 554                            MODEST_TNY_ACCOUNT_STORE (priv->account_store)))
 555                 g_printerr ("modest: failed to update model\n");
 556
 557         g_object_unref (G_OBJECT (device));
 558 }
 559
 560 static void
 561 on_account_update (TnyAccountStore *account_store, const gchar *account,
 562                    gpointer user_data)
 563 {
 564         if (!update_model (MODEST_FOLDER_VIEW(user_data),
 565                            MODEST_TNY_ACCOUNT_STORE(account_store)))
 566                 g_printerr ("modest: failed to update model for changes in '%s'",
 567                             account);
 568 }
 569
 570 static void
 571 on_accounts_reloaded   (TnyAccountStore *account_store,
 572                         gpointer user_data)
 573 {
 574         update_model (MODEST_FOLDER_VIEW (user_data),
 575                       MODEST_TNY_ACCOUNT_STORE(account_store));
 576 }
 577
 578 void
 579 modest_folder_view_set_title (ModestFolderView *self, const gchar *title)
 580 {
 581         GtkTreeViewColumn *col;
 582
 583         g_return_if_fail (self);
 584
 585         col = gtk_tree_view_get_column (GTK_TREE_VIEW(self), 0);
 586         if (!col) {
 587                 g_printerr ("modest: failed get column for title\n");
 588                 return;
 589         }
 590
 591         gtk_tree_view_column_set_title (col, title);
 592         gtk_tree_view_set_headers_visible (GTK_TREE_VIEW(self),
 593                                            title != NULL);
 594 }
 595
 596 GtkWidget*
 597 modest_folder_view_new (TnyFolderStoreQuery *query)
 598 {
 599         GObject *self;
 600         ModestFolderViewPrivate *priv;
 601         GtkTreeSelection *sel;
 602
 603         self = G_OBJECT (g_object_new (MODEST_TYPE_FOLDER_VIEW, NULL));
 604         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (self);
 605
 606         priv->query = g_object_ref (query);
 607
 608         sel = gtk_tree_view_get_selection(GTK_TREE_VIEW(self));
 609         priv->changed_signal = g_signal_connect (sel, "changed",
 610                                                  G_CALLBACK (on_selection_changed), self);
 611
 612         return GTK_WIDGET(self);
 613 }
 614
 615 /* this feels dirty; any other way to expand all the root items? */
 616 static void
 617 expand_root_items (ModestFolderView *self)
 618 {
 619         GtkTreePath *path;
 620         path = gtk_tree_path_new_first ();
 621
 622         /* all folders should have child items, so.. */
 623         while (gtk_tree_view_expand_row (GTK_TREE_VIEW(self), path, FALSE))
 624                 gtk_tree_path_next (path);
 625
 626         gtk_tree_path_free (path);
 627 }
 628
 629 /*
 630  * HACK: we use this function to implement the
 631  * MODEST_FOLDER_VIEW_STYLE_SHOW_ONE style. This implementation
 632  * assumes that the model has the following order (which is currently
 633  * true) Remote folders->Local folders->MMC folders, so the rows of
 634  * the first level (that represent the accounts) are received in the
 635  * same order. So basically it uses a static variable to register that
 636  * a remote account has already being shown to hide the others
 637  * (returning NULL). When the function evaluates the local or the MMC
 638  * accounts is time to reset the static variable in order to get it
 639  * ready for the next time the tree model needs to be shown.
 640  */
 641 static gboolean
 642 filter_row (GtkTreeModel *model,
 643             GtkTreeIter *iter,
 644             gpointer data)
 645 {
 646         static gboolean found = FALSE;
 647         gboolean retval;
 648         gint type;
 649         GObject *instance;
 650
 651         gtk_tree_model_get (model, iter,
 652                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 653                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &instance,
 654                             -1);
 655
 656         if (type == TNY_FOLDER_TYPE_ROOT) {
 657                 const gchar *account_id = tny_account_get_id (TNY_ACCOUNT (instance));
 658
 659                 if (strcmp (account_id, MODEST_LOCAL_FOLDERS_ACCOUNT_ID) &&
 660                     strcmp (account_id, MODEST_MMC_ACCOUNT_ID)) {
 661
 662                         if (!found) {
 663                                 found = TRUE;
 664                                 retval = TRUE;
 665                         } else
 666                                 retval = FALSE;
 667                 } else {
 668                         found = FALSE;
 669                         retval = TRUE;
 670                 }
 671         } else
 672                 retval = TRUE;
 673
 674         return retval;
 675 }
 676
 677 static gboolean
 678 update_model (ModestFolderView *self, ModestTnyAccountStore *account_store)
 679 {
 680         ModestFolderViewPrivate *priv;
 681         TnyList          *account_list;
 682         GtkTreeModel     *model;
 683
 684         g_return_val_if_fail (account_store, FALSE);
 685
 686         priv =  MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 687
 688         /* Notify that there is no folder selected */
 689         g_signal_emit (G_OBJECT(self),
 690                        signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
 691                        NULL, TRUE);
 692
 693         /* FIXME: the local accounts are not shown when the query
 694            selects only the subscribed folders. */
 695 /*      model        = tny_gtk_folder_store_tree_model_new (TRUE, priv->query); */
 696         model        = tny_gtk_folder_store_tree_model_new (TRUE, NULL);
 697         account_list = TNY_LIST(model);
 698
 699         tny_account_store_get_accounts (TNY_ACCOUNT_STORE(account_store),
 700                                         account_list,
 701                                         TNY_ACCOUNT_STORE_STORE_ACCOUNTS);
 702         if (account_list) {
 703                 GtkTreeModel *filter_model = NULL, *sortable = NULL;
 704
 705                 sortable = gtk_tree_model_sort_new_with_model (model);
 706                 gtk_tree_sortable_set_sort_column_id (GTK_TREE_SORTABLE(sortable),
 707                                                       TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 708                                                       GTK_SORT_ASCENDING);
 709                 gtk_tree_sortable_set_sort_func (GTK_TREE_SORTABLE (sortable),
 710                                                  TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN,
 711                                                  cmp_rows, NULL, NULL);
 712
 713                 /* Create filter model */
 714                 if (priv->style == MODEST_FOLDER_VIEW_STYLE_SHOW_ONE) {
 715                         filter_model = gtk_tree_model_filter_new (sortable, NULL);
 716                         gtk_tree_model_filter_set_visible_func (GTK_TREE_MODEL_FILTER (filter_model),
 717                                                                 filter_row,
 718                                                                 NULL,
 719                                                                 NULL);
 720                 }
 721
 722                 /* Set new model */
 723                 gtk_tree_view_set_model (GTK_TREE_VIEW(self),
 724                                          (filter_model) ? filter_model : sortable);
 725                 expand_root_items (self); /* expand all account folders */
 726                 g_object_unref (account_list);
 727         }
 728
 729         return TRUE;
 730 }
 731
 732
 733 static void
 734 on_selection_changed (GtkTreeSelection *sel, gpointer user_data)
 735 {
 736         GtkTreeModel            *model;
 737         TnyFolderStore          *folder = NULL;
 738         GtkTreeIter             iter;
 739         ModestFolderView        *tree_view;
 740         ModestFolderViewPrivate *priv;
 741         gint                    type;
 742
 743         g_return_if_fail (sel);
 744         g_return_if_fail (user_data);
 745
 746         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(user_data);
 747         priv->cur_selection = sel;
 748
 749         /* folder was _un_selected if true */
 750         if (!gtk_tree_selection_get_selected (sel, &model, &iter)) {
 751                 if (priv->cur_folder_store)
 752                         g_object_unref (priv->cur_folder_store);
 753                 priv->cur_folder_store = NULL;
 754
 755                 /* Notify the display name observers */
 756                 g_signal_emit (G_OBJECT(user_data),
 757                                signals[FOLDER_DISPLAY_NAME_CHANGED_SIGNAL], 0,
 758                                NULL);
 759                 return;
 760         }
 761
 762         tree_view = MODEST_FOLDER_VIEW (user_data);
 763
 764         gtk_tree_model_get (model, &iter,
 765                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 766                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder,
 767                             -1);
 768
 769         /* If the folder is the same do not notify */
 770         if (priv->cur_folder_store == folder) {
 771                 g_object_unref (folder);
 772                 return;
 773         }
 774
 775         /* Current folder was unselected */
 776         if (priv->cur_folder_store) {
 777                 g_signal_emit (G_OBJECT(tree_view), signals[FOLDER_SELECTION_CHANGED_SIGNAL], 0,
 778                                priv->cur_folder_store, FALSE);
 779                 g_object_unref (priv->cur_folder_store);
 780         }
 781
 782         /* New current references */
 783         priv->cur_folder_store = folder;
 784
 785         /* New folder has been selected */
 786         g_signal_emit (G_OBJECT(tree_view),
 787                        signals[FOLDER_SELECTION_CHANGED_SIGNAL],
 788                        0, folder, TRUE);
 789 }
 790
 791 TnyFolderStore *
 792 modest_folder_view_get_selected (ModestFolderView *self)
 793 {
 794         ModestFolderViewPrivate *priv;
 795
 796         g_return_val_if_fail (self, NULL);
 797
 798         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
 799         if (priv->cur_folder_store)
 800                 g_object_ref (priv->cur_folder_store);
 801
 802         return priv->cur_folder_store;
 803 }
 804
 805 /*
 806  * This function orders the mail accounts following the next rules
 807  * 1st - remote accounts
 808  * 2nd - local account
 809  * 3rd - MMC account
 810  */
 811 static gint
 812 cmp_rows (GtkTreeModel *tree_model, GtkTreeIter *iter1, GtkTreeIter *iter2,
 813           gpointer user_data)
 814 {
 815         gint cmp;
 816         gchar         *name1, *name2;
 817         TnyFolderType type;
 818         TnyFolder     *folder1, *folder2;
 819
 820         gtk_tree_model_get (tree_model, iter1,
 821                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &name1,
 822                             TNY_GTK_FOLDER_STORE_TREE_MODEL_TYPE_COLUMN, &type,
 823                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder1,
 824                             -1);
 825         gtk_tree_model_get (tree_model, iter2,
 826                             TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN, &name2,
 827                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN, &folder2,
 828                             -1);
 829
 830         /* Order must be: Remote accounts -> Local account -> MMC account */
 831         if (type == TNY_FOLDER_TYPE_ROOT) {
 832                 const gchar *account_id = tny_account_get_id (TNY_ACCOUNT (folder1));
 833                 const gchar *account_id2 = tny_account_get_id (TNY_ACCOUNT (folder2));
 834
 835                 if (!strcmp (account_id, MODEST_MMC_ACCOUNT_ID))
 836                         cmp = +1;
 837                 else {
 838                         if (!strcmp (account_id, MODEST_LOCAL_FOLDERS_ACCOUNT_ID)) {
 839                                 if (!strcmp (account_id2, MODEST_MMC_ACCOUNT_ID))
 840                                         cmp = -1;
 841                                 else
 842                                         cmp = +1;
 843                         } else {
 844                                 if (!strcmp (account_id2, MODEST_LOCAL_FOLDERS_ACCOUNT_ID) ||
 845                                     !strcmp (account_id2, MODEST_MMC_ACCOUNT_ID))
 846                                         cmp = -1;
 847                                 else
 848                                         cmp = modest_text_utils_utf8_strcmp (name1, name2, TRUE);
 849                         }
 850                 }
 851         } else
 852                 cmp = modest_text_utils_utf8_strcmp (name1, name2, TRUE);
 853
 854         if (folder1)
 855                 g_object_unref(G_OBJECT(folder1));
 856         if (folder2)
 857                 g_object_unref(G_OBJECT(folder2));
 858
 859         g_free (name1);
 860         g_free (name2);
 861
 862         return cmp;
 863 }
 864
 865 /*****************************************************************************/
 866 /*                        DRAG and DROP stuff                                */
 867 /*****************************************************************************/
 868
 869 /*
 870  * This function fills the #GtkSelectionData with the row and the
 871  * model that has been dragged. It's called when this widget is a
 872  * source for dnd after the event drop happened
 873  */
 874 static void
 875 on_drag_data_get (GtkWidget *widget,
 876                   GdkDragContext *context,
 877                   GtkSelectionData *selection_data,
 878                   guint info,
 879                   guint time,
 880                   gpointer data)
 881 {
 882         GtkTreeSelection *selection;
 883         GtkTreeModel *model_sort, *model;
 884         GtkTreeIter iter;
 885         GtkTreePath *source_row_sort;
 886         GtkTreePath *source_row;
 887
 888         selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (widget));
 889         gtk_tree_selection_get_selected (selection, &model_sort, &iter);
 890         source_row_sort = gtk_tree_model_get_path (model_sort, &iter);
 891
 892         /* Get the unsorted path and model */
 893         model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
 894         source_row = gtk_tree_model_sort_convert_path_to_child_path (GTK_TREE_MODEL_SORT (model_sort),
 895                                                                      source_row_sort);
 896
 897         gtk_tree_set_row_drag_data (selection_data,
 898                                     model,
 899                                     source_row);
 900
 901         gtk_tree_path_free (source_row_sort);
 902         gtk_tree_path_free (source_row);
 903 }
 904
 905 typedef struct _DndHelper {
 906         gboolean delete_source;
 907         GtkTreePath *source_row;
 908         GdkDragContext *context;
 909         guint time;
 910 } DndHelper;
 911
 912
 913 /*
 914  * This function is the callback of the
 915  * modest_mail_operation_xfer_msg() and
 916  * modest_mail_operation_xfer_folder() calls. We check here if the
 917  * message/folder was correctly asynchronously transferred. The reason
 918  * to use the same callback is that the code is the same, it only has
 919  * to check that the operation went fine and then finalize the drag
 920  * and drop action
 921  */
 922 static void
 923 on_progress_changed (ModestMailOperation *mail_op, gpointer user_data)
 924 {
 925         gboolean success;
 926         DndHelper *helper;
 927
 928         helper = (DndHelper *) user_data;
 929
 930         if (!modest_mail_operation_is_finished (mail_op))
 931                 return;
 932
 933         if (modest_mail_operation_get_status (mail_op) ==
 934             MODEST_MAIL_OPERATION_STATUS_SUCCESS) {
 935                 success = TRUE;
 936         } else {
 937                 success = FALSE;
 938         }
 939
 940         /* Notify the drag source. Never call delete, the monitor will
 941            do the job if needed */
 942         gtk_drag_finish (helper->context, success, FALSE, helper->time);
 943
 944         /* Free the helper */
 945         gtk_tree_path_free (helper->source_row);
 946         g_slice_free (DndHelper, helper);
 947 }
 948
 949 /*
 950  * This function is used by drag_data_received_cb to manage drag and
 951  * drop of a header, i.e, and drag from the header view to the folder
 952  * view.
 953  */
 954 static void
 955 drag_and_drop_from_header_view (GtkTreeModel *source_model,
 956                                 GtkTreeModel *dest_model,
 957                                 GtkTreePath  *dest_row,
 958                                 DndHelper    *helper)
 959 {
 960         TnyHeader *header;
 961         TnyFolder *folder;
 962         ModestMailOperation *mail_op;
 963         GtkTreeIter source_iter, dest_iter;
 964
 965         /* Get header */
 966         gtk_tree_model_get_iter (source_model, &source_iter, helper->source_row);
 967         gtk_tree_model_get (source_model, &source_iter,
 968                             TNY_GTK_HEADER_LIST_MODEL_INSTANCE_COLUMN,
 969                             &header, -1);
 970
 971         /* Get Folder */
 972         gtk_tree_model_get_iter (dest_model, &dest_iter, dest_row);
 973         gtk_tree_model_get (dest_model, &dest_iter,
 974                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN,
 975                             &folder, -1);
 976
 977         /* Transfer message */
 978         mail_op = modest_mail_operation_new ();
 979         modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
 980                                          mail_op);
 981         g_signal_connect (G_OBJECT (mail_op), "progress-changed",
 982                           G_CALLBACK (on_progress_changed), helper);
 983
 984         modest_mail_operation_xfer_msg (mail_op, header, folder, helper->delete_source);
 985
 986         /* Frees */
 987         g_object_unref (G_OBJECT (mail_op));
 988         g_object_unref (G_OBJECT (header));
 989         g_object_unref (G_OBJECT (folder));
 990 }
 991
 992 /*
 993  * This function is used by drag_data_received_cb to manage drag and
 994  * drop of a folder, i.e, and drag from the folder view to the same
 995  * folder view.
 996  */
 997 static void
 998 drag_and_drop_from_folder_view (GtkTreeModel     *source_model,
 999                                 GtkTreeModel     *dest_model,
1000                                 GtkTreePath      *dest_row,
1001                                 GtkSelectionData *selection_data,
1002                                 DndHelper        *helper)
1003 {
1004         ModestMailOperation *mail_op;
1005         GtkTreeIter parent_iter, iter;
1006         TnyFolderStore *parent_folder;
1007         TnyFolder *folder;
1008
1009         /* Check if the drag is possible */
1010         if (!gtk_tree_path_compare (helper->source_row, dest_row) ||
1011             !gtk_tree_drag_dest_row_drop_possible (GTK_TREE_DRAG_DEST (dest_model),
1012                                                    dest_row,
1013                                                    selection_data)) {
1014
1015                 gtk_drag_finish (helper->context, FALSE, FALSE, helper->time);
1016                 gtk_tree_path_free (helper->source_row);
1017                 g_slice_free (DndHelper, helper);
1018                 return;
1019         }
1020
1021         /* Get data */
1022         gtk_tree_model_get_iter (source_model, &parent_iter, dest_row);
1023         gtk_tree_model_get_iter (source_model, &iter, helper->source_row);
1024         gtk_tree_model_get (source_model, &parent_iter,
1025                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN,
1026                             &parent_folder, -1);
1027         gtk_tree_model_get (source_model, &iter,
1028                             TNY_GTK_FOLDER_STORE_TREE_MODEL_INSTANCE_COLUMN,
1029                             &folder, -1);
1030
1031         /* Do the mail operation */
1032         mail_op = modest_mail_operation_new ();
1033         modest_mail_operation_queue_add (modest_runtime_get_mail_operation_queue (),
1034                                          mail_op);
1035         g_signal_connect (G_OBJECT (mail_op), "progress-changed",
1036                           G_CALLBACK (on_progress_changed), helper);
1037
1038         modest_mail_operation_xfer_folder (mail_op,
1039                                            folder,
1040                                            parent_folder,
1041                                            helper->delete_source);
1042
1043         /* Frees */
1044         g_object_unref (G_OBJECT (parent_folder));
1045         g_object_unref (G_OBJECT (folder));
1046         g_object_unref (G_OBJECT (mail_op));
1047 }
1048
1049 /*
1050  * This function receives the data set by the "drag-data-get" signal
1051  * handler. This information comes within the #GtkSelectionData. This
1052  * function will manage both the drags of folders of the treeview and
1053  * drags of headers of the header view widget.
1054  */
1055 static void
1056 on_drag_data_received (GtkWidget *widget,
1057                        GdkDragContext *context,
1058                        gint x,
1059                        gint y,
1060                        GtkSelectionData *selection_data,
1061                        guint target_type,
1062                        guint time,
1063                        gpointer data)
1064 {
1065         GtkWidget *source_widget;
1066         GtkTreeModel *model_sort, *dest_model, *source_model;
1067         GtkTreePath *source_row, *dest_row, *child_dest_row;
1068         GtkTreeViewDropPosition pos;
1069         gboolean success = FALSE, delete_source = FALSE;
1070         DndHelper *helper;
1071
1072         /* Do not allow further process */
1073         g_signal_stop_emission_by_name (widget, "drag-data-received");
1074
1075         /* Get the action */
1076         if (context->action == GDK_ACTION_MOVE)
1077                 delete_source = TRUE;
1078
1079         /* Check if the get_data failed */
1080         if (selection_data == NULL || selection_data->length < 0)
1081                 gtk_drag_finish (context, success, FALSE, time);
1082
1083         /* Get the models */
1084         source_widget = gtk_drag_get_source_widget (context);
1085         gtk_tree_get_row_drag_data (selection_data,
1086                                     &source_model,
1087                                     &source_row);
1088
1089         model_sort = gtk_tree_view_get_model (GTK_TREE_VIEW (widget));
1090         /* Select the destination model */
1091         if (source_widget == widget) {
1092                 dest_model = source_model;
1093         } else {
1094                 dest_model = gtk_tree_model_sort_get_model (GTK_TREE_MODEL_SORT (model_sort));
1095         }
1096
1097         /* Get the path to the destination row. Can not call
1098            gtk_tree_view_get_drag_dest_row() because the source row
1099            is not selected anymore */
1100         gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget), x, y,
1101                                            &dest_row, &pos);
1102
1103         /* Only allow drops IN other rows */
1104         if (!dest_row || pos == GTK_TREE_VIEW_DROP_BEFORE || pos == GTK_TREE_VIEW_DROP_AFTER)
1105                 gtk_drag_finish (context, success, FALSE, time);
1106
1107         /* Create the helper */
1108         helper = g_slice_new0 (DndHelper);
1109         helper->delete_source = delete_source;
1110         helper->source_row = gtk_tree_path_copy (source_row);
1111         helper->context = context;
1112         helper->time = time;
1113
1114         /* Get path from the unsorted model */
1115         child_dest_row =
1116                 gtk_tree_model_sort_convert_path_to_child_path (GTK_TREE_MODEL_SORT (model_sort),
1117                                                                 dest_row);
1118         gtk_tree_path_free (dest_row);
1119
1120         /* Drags from the header view */
1121         if (source_widget != widget) {
1122
1123                 drag_and_drop_from_header_view (source_model,
1124                                                 dest_model,
1125                                                 child_dest_row,
1126                                                 helper);
1127         } else {
1128
1129
1130                 drag_and_drop_from_folder_view (source_model,
1131                                                 dest_model,
1132                                                 child_dest_row,
1133                                                 selection_data,
1134                                                 helper);
1135         }
1136
1137         /* Frees */
1138         gtk_tree_path_free (source_row);
1139         gtk_tree_path_free (child_dest_row);
1140 }
1141
1142 /*
1143  * We define a "drag-drop" signal handler because we do not want to
1144  * use the default one, because the default one always calls
1145  * gtk_drag_finish and we prefer to do it in the "drag-data-received"
1146  * signal handler, because there we have all the information available
1147  * to know if the dnd was a success or not.
1148  */
1149 static gboolean
1150 drag_drop_cb (GtkWidget      *widget,
1151               GdkDragContext *context,
1152               gint            x,
1153               gint            y,
1154               guint           time,
1155               gpointer        user_data)
1156 {
1157         gpointer target;
1158
1159         if (!context->targets)
1160                 return FALSE;
1161
1162         /* Check if we're dragging a folder row */
1163         target = gtk_drag_dest_find_target (widget, context, NULL);
1164
1165         /* Request the data from the source. */
1166         gtk_drag_get_data(widget, context, target, time);
1167
1168     return TRUE;
1169 }
1170
1171 /*
1172  * This function expands a node of a tree view if it's not expanded
1173  * yet. Not sure why it needs the threads stuff, but gtk+`example code
1174  * does that, so that's why they're here.
1175  */
1176 static gint
1177 expand_row_timeout (gpointer data)
1178 {
1179         GtkTreeView *tree_view = data;
1180         GtkTreePath *dest_path = NULL;
1181         GtkTreeViewDropPosition pos;
1182         gboolean result = FALSE;
1183
1184         GDK_THREADS_ENTER ();
1185
1186         gtk_tree_view_get_drag_dest_row (tree_view,
1187                                          &dest_path,
1188                                          &pos);
1189
1190         if (dest_path &&
1191             (pos == GTK_TREE_VIEW_DROP_INTO_OR_AFTER ||
1192              pos == GTK_TREE_VIEW_DROP_INTO_OR_BEFORE)) {
1193                 gtk_tree_view_expand_row (tree_view, dest_path, FALSE);
1194                 gtk_tree_path_free (dest_path);
1195         }
1196         else {
1197                 if (dest_path)
1198                         gtk_tree_path_free (dest_path);
1199
1200                 result = TRUE;
1201         }
1202
1203         GDK_THREADS_LEAVE ();
1204
1205         return result;
1206 }
1207
1208 /*
1209  * This function is called whenever the pointer is moved over a widget
1210  * while dragging some data. It installs a timeout that will expand a
1211  * node of the treeview if not expanded yet. This function also calls
1212  * gdk_drag_status in order to set the suggested action that will be
1213  * used by the "drag-data-received" signal handler to know if we
1214  * should do a move or just a copy of the data.
1215  */
1216 static gboolean
1217 on_drag_motion (GtkWidget      *widget,
1218                 GdkDragContext *context,
1219                 gint            x,
1220                 gint            y,
1221                 guint           time,
1222                 gpointer        user_data)
1223 {
1224         GtkTreeViewDropPosition pos;
1225         GtkTreePath *dest_row;
1226         ModestFolderViewPrivate *priv;
1227         GdkDragAction suggested_action;
1228         gboolean valid_location = FALSE;
1229
1230         priv = MODEST_FOLDER_VIEW_GET_PRIVATE (widget);
1231
1232         if (priv->timer_expander != 0) {
1233                 g_source_remove (priv->timer_expander);
1234                 priv->timer_expander = 0;
1235         }
1236
1237         gtk_tree_view_get_dest_row_at_pos (GTK_TREE_VIEW (widget),
1238                                            x, y,
1239                                            &dest_row,
1240                                            &pos);
1241
1242         /* Do not allow drops between folders */
1243         if (!dest_row ||
1244             pos == GTK_TREE_VIEW_DROP_BEFORE ||
1245             pos == GTK_TREE_VIEW_DROP_AFTER) {
1246                 gtk_tree_view_set_drag_dest_row(GTK_TREE_VIEW (widget), NULL, 0);
1247                 gdk_drag_status(context, 0, time);
1248                 valid_location = FALSE;
1249                 goto out;
1250         } else {
1251                 valid_location = TRUE;
1252         }
1253
1254         /* Expand the selected row after 1/2 second */
1255         if (!gtk_tree_view_row_expanded (GTK_TREE_VIEW (widget), dest_row)) {
1256                 gtk_tree_view_set_drag_dest_row (GTK_TREE_VIEW (widget), dest_row, pos);
1257                 priv->timer_expander = g_timeout_add (500, expand_row_timeout, widget);
1258         }
1259         gtk_tree_path_free (dest_row);
1260
1261         /* Select the desired action. By default we pick MOVE */
1262         suggested_action = GDK_ACTION_MOVE;
1263
1264         if (context->actions == GDK_ACTION_COPY)
1265             gdk_drag_status(context, GDK_ACTION_COPY, time);
1266         else if (context->actions == GDK_ACTION_MOVE)
1267             gdk_drag_status(context, GDK_ACTION_MOVE, time);
1268         else if (context->actions & suggested_action)
1269             gdk_drag_status(context, suggested_action, time);
1270         else
1271             gdk_drag_status(context, GDK_ACTION_DEFAULT, time);
1272
1273  out:
1274         g_signal_stop_emission_by_name (widget, "drag-motion");
1275         return valid_location;
1276 }
1277
1278
1279 /* Folder view drag types */
1280 const GtkTargetEntry folder_view_drag_types[] =
1281 {
1282         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_WIDGET, MODEST_FOLDER_ROW },
1283         { "GTK_TREE_MODEL_ROW", GTK_TARGET_SAME_APP,    MODEST_HEADER_ROW }
1284 };
1285
1286 /*
1287  * This function sets the treeview as a source and a target for dnd
1288  * events. It also connects all the requirede signals.
1289  */
1290 static void
1291 setup_drag_and_drop (GtkTreeView *self)
1292 {
1293         /* Set up the folder view as a dnd destination. Set only the
1294            highlight flag, otherwise gtk will have a different
1295            behaviour */
1296         gtk_drag_dest_set (GTK_WIDGET (self),
1297                            GTK_DEST_DEFAULT_HIGHLIGHT,
1298                            folder_view_drag_types,
1299                            G_N_ELEMENTS (folder_view_drag_types),
1300                            GDK_ACTION_MOVE | GDK_ACTION_COPY);
1301
1302         g_signal_connect (G_OBJECT (self),
1303                           "drag_data_received",
1304                           G_CALLBACK (on_drag_data_received),
1305                           NULL);
1306
1307
1308         /* Set up the treeview as a dnd source */
1309         gtk_drag_source_set (GTK_WIDGET (self),
1310                              GDK_BUTTON1_MASK,
1311                              folder_view_drag_types,
1312                              G_N_ELEMENTS (folder_view_drag_types),
1313                              GDK_ACTION_MOVE | GDK_ACTION_COPY);
1314
1315         g_signal_connect (G_OBJECT (self),
1316                           "drag_motion",
1317                           G_CALLBACK (on_drag_motion),
1318                           NULL);
1319
1320         g_signal_connect (G_OBJECT (self),
1321                           "drag_data_get",
1322                           G_CALLBACK (on_drag_data_get),
1323                           NULL);
1324
1325         g_signal_connect (G_OBJECT (self),
1326                           "drag_drop",
1327                           G_CALLBACK (drag_drop_cb),
1328                           NULL);
1329 }
1330
1331 /*
1332  * This function manages the navigation through the folders using the
1333  * keyboard or the hardware keys in the device
1334  */
1335 static gboolean
1336 on_key_pressed (GtkWidget *self,
1337                 GdkEventKey *event,
1338                 gpointer user_data)
1339 {
1340         GtkTreeSelection *selection;
1341         GtkTreeIter iter;
1342         GtkTreeModel *model;
1343         gboolean retval = FALSE;
1344
1345         /* Up and Down are automatically managed by the treeview */
1346         if (event->keyval == GDK_Return) {
1347                 /* Expand/Collapse the selected row */
1348                 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (self));
1349                 if (gtk_tree_selection_get_selected (selection, &model, &iter)) {
1350                         GtkTreePath *path;
1351
1352                         path = gtk_tree_model_get_path (model, &iter);
1353
1354                         if (gtk_tree_view_row_expanded (GTK_TREE_VIEW (self), path))
1355                                 gtk_tree_view_collapse_row (GTK_TREE_VIEW (self), path);
1356                         else
1357                                 gtk_tree_view_expand_row (GTK_TREE_VIEW (self), path, FALSE);
1358                         gtk_tree_path_free (path);
1359                 }
1360                 /* No further processing */
1361                 retval = TRUE;
1362         }
1363
1364         return retval;
1365 }
1366
1367 /*
1368  * We listen to the changes in the local folder account name key,
1369  * because we want to show the right name in the view. The local
1370  * folder account name corresponds to the device name in the Maemo
1371  * version. We do this because we do not want to query gconf on each
1372  * tree view refresh. It's better to cache it and change whenever
1373  * necessary.
1374  */
1375 static void
1376 on_configuration_key_changed (ModestConf* conf,
1377                               const gchar *key,
1378                               ModestConfEvent event,
1379                               ModestFolderView *self)
1380 {
1381         ModestFolderViewPrivate *priv;
1382
1383         if (!key || strcmp (key, MODEST_CONF_DEVICE_NAME))
1384                 return;
1385
1386         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
1387
1388         g_free (priv->local_account_name);
1389
1390         if (event == MODEST_CONF_EVENT_KEY_UNSET)
1391                 priv->local_account_name = g_strdup (MODEST_LOCAL_FOLDERS_DEFAULT_DISPLAY_NAME);
1392         else
1393                 priv->local_account_name = modest_conf_get_string (modest_runtime_get_conf(),
1394                                                                    MODEST_CONF_DEVICE_NAME, NULL);
1395
1396         /* Force a redraw */
1397 #if GTK_CHECK_VERSION(2, 8, 0) /* gtk_tree_view_column_queue_resize is only available in GTK+ 2.8 */
1398         GtkTreeViewColumn * tree_column = gtk_tree_view_get_column (GTK_TREE_VIEW (self),
1399                                                 TNY_GTK_FOLDER_STORE_TREE_MODEL_NAME_COLUMN);
1400         gtk_tree_view_column_queue_resize (tree_column);
1401 #endif
1402 }
1403
1404 void
1405 modest_folder_view_set_style (ModestFolderView *self,
1406                               ModestFolderViewStyle style)
1407 {
1408         ModestFolderViewPrivate *priv;
1409
1410         g_return_if_fail (self);
1411
1412         priv = MODEST_FOLDER_VIEW_GET_PRIVATE(self);
1413
1414         priv->style = style;
1415 }