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

   1 /* Copyright (c) 2007, 2009, 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 <config.h>
  31
  32 #include <string.h>
  33 #include <gtk/gtk.h>
  34 #include <gdk/gdkkeysyms.h>
  35 #include <tny-list.h>
  36 #include <tny-simple-list.h>
  37
  38 #include <modest-platform.h>
  39 #include <modest-runtime.h>
  40 #include <modest-attachment-view.h>
  41 #include <modest-attachments-view.h>
  42 #include <modest-tny-mime-part.h>
  43
  44 static GObjectClass *parent_class = NULL;
  45
  46 /* signals */
  47 enum {
  48         ACTIVATE_SIGNAL,
  49         DELETE_SIGNAL,
  50         LAST_SIGNAL
  51 };
  52
  53 typedef struct _ModestAttachmentsViewPrivate ModestAttachmentsViewPrivate;
  54
  55 struct _ModestAttachmentsViewPrivate
  56 {
  57         TnyMsg *msg;
  58         GtkWidget *box;
  59         GList *selected;
  60         GtkWidget *rubber_start;
  61         ModestAttachmentsViewStyle style;
  62 };
  63
  64 #define MODEST_ATTACHMENTS_VIEW_GET_PRIVATE(o)  \
  65         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_ATTACHMENTS_VIEW, ModestAttachmentsViewPrivate))
  66
  67 static gboolean button_press_event (GtkWidget *widget, GdkEventButton *event, ModestAttachmentsView *atts_view);
  68 static gboolean motion_notify_event (GtkWidget *widget, GdkEventMotion *event, ModestAttachmentsView *atts_view);
  69 static gboolean button_release_event (GtkWidget *widget, GdkEventButton *event, ModestAttachmentsView *atts_view);
  70 static gboolean key_press_event (GtkWidget *widget, GdkEventKey *event, ModestAttachmentsView *atts_view);
  71 static gboolean focus_out_event (GtkWidget *widget, GdkEventFocus *event, ModestAttachmentsView *atts_view);
  72 static gboolean focus (GtkWidget *widget, GtkDirectionType direction, ModestAttachmentsView *atts_view);
  73 static GtkWidget *get_att_view_at_coords (ModestAttachmentsView *atts_view,
  74                                           gdouble x, gdouble y);
  75 static void unselect_all (ModestAttachmentsView *atts_view);
  76 static void set_selected (ModestAttachmentsView *atts_view, ModestAttachmentView *att_view);
  77 static void select_range (ModestAttachmentsView *atts_view, ModestAttachmentView *att1, ModestAttachmentView *att2);
  78 static void clipboard_get (GtkClipboard *clipboard, GtkSelectionData *selection_data,
  79                            guint info, gpointer userdata);
  80 static void own_clipboard (ModestAttachmentsView *atts_view);
  81
  82 static guint signals[LAST_SIGNAL] = {0};
  83
  84 /**
  85  * modest_attachments_view_new:
  86  * @msg: a #TnyMsg
  87  *
  88  * Constructor for attachments view widget.
  89  *
  90  * Return value: a new #ModestAttachmentsView instance implemented for Gtk+
  91  **/
  92 GtkWidget*
  93 modest_attachments_view_new (TnyMsg *msg)
  94 {
  95         ModestAttachmentsView *self = g_object_new (MODEST_TYPE_ATTACHMENTS_VIEW,
  96                                                     "resize-mode", GTK_RESIZE_PARENT,
  97                                                     NULL);
  98
  99         modest_attachments_view_set_message (self, msg);
 100
 101         return GTK_WIDGET (self);
 102 }
 103
 104
 105 void
 106 modest_attachments_view_set_message (ModestAttachmentsView *attachments_view, TnyMsg *msg)
 107 {
 108         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (attachments_view);
 109         TnyList *parts;
 110         TnyIterator *iter;
 111         gchar *msg_content_type = NULL;
 112         TnyMimePart *part_to_check;
 113
 114         if (msg == priv->msg) return;
 115
 116         if (priv->msg)
 117                 g_object_unref (priv->msg);
 118         if (msg)
 119                 g_object_ref (G_OBJECT(msg));
 120
 121         priv->msg = msg;
 122
 123         g_list_free (priv->selected);
 124         priv->selected = NULL;
 125
 126         gtk_container_foreach (GTK_CONTAINER (priv->box), (GtkCallback) gtk_widget_destroy, NULL);
 127
 128         if (priv->msg == NULL) {
 129                 return;
 130         }
 131
 132         msg_content_type = modest_tny_mime_part_get_content_type (TNY_MIME_PART (priv->msg));
 133         /* If the top mime part is a multipart/signed, we have to work with its first child (if available)
 134          * as "message" for showing attachments */
 135
 136         part_to_check = NULL;
 137         if ((msg_content_type != NULL) && !strcasecmp (msg_content_type, "multipart/signed")) {
 138                 TnyList *msg_children;
 139                 guint length;
 140
 141                 msg_children = TNY_LIST (tny_simple_list_new ());
 142                 tny_mime_part_get_parts (TNY_MIME_PART (priv->msg), msg_children);
 143
 144                 length = tny_list_get_length (msg_children);
 145                 if (length == 1 || length == 2) {
 146                         TnyIterator *iterator;
 147
 148                         iterator = tny_list_create_iterator (msg_children);
 149
 150                         part_to_check = TNY_MIME_PART (tny_iterator_get_current (iterator));
 151
 152                         g_object_unref (iterator);
 153                 }
 154
 155                 g_object_unref (msg_children);
 156
 157         }
 158
 159         if (part_to_check == NULL) {
 160                 part_to_check = g_object_ref (priv->msg);
 161         } else {
 162                 msg_content_type = modest_tny_mime_part_get_content_type (TNY_MIME_PART (part_to_check));
 163         }
 164
 165
 166         /* If the top mime part is a multipart/related, we don't show the attachments, as they're
 167          * embedded images in body */
 168         if ((msg_content_type != NULL) && !strcasecmp (msg_content_type, "multipart/related")) {
 169                 gchar *header_content_type;
 170                 gboolean application_multipart = FALSE;
 171
 172                 g_free (msg_content_type);
 173
 174                 header_content_type = modest_tny_mime_part_get_headers_content_type (TNY_MIME_PART (part_to_check));
 175
 176                 if ((header_content_type != NULL) &&
 177                     !strstr (header_content_type, "application/")) {
 178                         application_multipart = TRUE;
 179                 }
 180                 g_free (header_content_type);
 181
 182                 if (application_multipart) {
 183                         gtk_widget_queue_draw (GTK_WIDGET (attachments_view));
 184                         g_object_unref (part_to_check);
 185                         return;
 186                 }
 187         } else {
 188                 gboolean direct_attach;
 189
 190                 direct_attach = (!g_str_has_prefix (msg_content_type, "message/rfc822") &&
 191                                  !g_str_has_prefix (msg_content_type, "multipart") &&
 192                                  !g_str_has_prefix (msg_content_type, "text/"));
 193
 194                 g_free (msg_content_type);
 195
 196                 if (direct_attach) {
 197                         modest_attachments_view_add_attachment (attachments_view, TNY_MIME_PART (part_to_check), TRUE, 0);
 198                         gtk_widget_queue_draw (GTK_WIDGET (attachments_view));
 199                         g_object_unref (part_to_check);
 200                         return;
 201                 }
 202         }
 203
 204         parts = TNY_LIST (tny_simple_list_new ());
 205         tny_mime_part_get_parts (TNY_MIME_PART (part_to_check), parts);
 206         iter = tny_list_create_iterator (parts);
 207
 208         while (!tny_iterator_is_done (iter)) {
 209                 TnyMimePart *part;
 210
 211                 part = TNY_MIME_PART (tny_iterator_get_current (iter));
 212
 213                 if (part && (modest_tny_mime_part_is_attachment_for_modest (part)))
 214                         modest_attachments_view_add_attachment (attachments_view, part, TRUE, 0);
 215
 216                 if (part)
 217                         g_object_unref (part);
 218
 219                 tny_iterator_next (iter);
 220         }
 221         g_object_unref (iter);
 222         g_object_unref (parts);
 223         g_object_unref (part_to_check);
 224
 225
 226         gtk_widget_queue_draw (GTK_WIDGET (attachments_view));
 227
 228 }
 229
 230 void
 231 modest_attachments_view_add_attachment (ModestAttachmentsView *attachments_view, TnyMimePart *part,
 232                                         gboolean detect_size, guint64 size)
 233 {
 234         GtkWidget *att_view = NULL;
 235         ModestAttachmentsViewPrivate *priv = NULL;
 236
 237         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (attachments_view));
 238         g_return_if_fail (TNY_IS_MIME_PART (part));
 239
 240         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (attachments_view);
 241
 242         att_view = modest_attachment_view_new (part, detect_size);
 243         if (!detect_size)
 244                 modest_attachment_view_set_size (MODEST_ATTACHMENT_VIEW (att_view), size);
 245         gtk_box_pack_start (GTK_BOX (priv->box), att_view, FALSE, FALSE, 0);
 246         gtk_widget_show_all (att_view);
 247         gtk_widget_queue_resize (GTK_WIDGET (attachments_view));
 248 }
 249
 250 void
 251 modest_attachments_view_remove_attachment (ModestAttachmentsView *atts_view, TnyMimePart *mime_part)
 252 {
 253         ModestAttachmentsViewPrivate *priv = NULL;
 254         GList *box_children = NULL, *node = NULL;
 255         ModestAttachmentView *found_att_view = NULL;
 256
 257         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view));
 258         g_return_if_fail (TNY_IS_MIME_PART (mime_part));
 259
 260         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 261         box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 262
 263         for (node = box_children; node != NULL; node = g_list_next (node)) {
 264                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
 265                 TnyMimePart *cur_mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 266
 267                 if (mime_part == cur_mime_part)
 268                         found_att_view = att_view;
 269
 270                 g_object_unref (cur_mime_part);
 271
 272                 if (found_att_view != NULL)
 273                         break;
 274         }
 275
 276         if (found_att_view) {
 277                 GList *node = NULL;
 278                 GtkWidget *next_widget = NULL;
 279                 GList *box_children = NULL;
 280
 281                 box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 282                 node = g_list_find (box_children, found_att_view);
 283                 if (node && node->next)
 284                         next_widget = node->next->data;
 285
 286                 g_list_free (box_children);
 287                 gtk_widget_destroy (GTK_WIDGET (found_att_view));
 288
 289                 node = g_list_find (priv->selected, found_att_view);
 290                 if (node) {
 291                         priv->selected = g_list_delete_link (priv->selected, node);
 292                         if ((priv->selected == NULL) && (next_widget != NULL))
 293                                 set_selected (MODEST_ATTACHMENTS_VIEW (atts_view),
 294                                               MODEST_ATTACHMENT_VIEW (next_widget));
 295                 }
 296                 own_clipboard (atts_view);
 297
 298         }
 299
 300         gtk_widget_queue_resize (GTK_WIDGET (atts_view));
 301 }
 302
 303 void
 304 modest_attachments_view_remove_attachment_by_id (ModestAttachmentsView *atts_view, const gchar *att_id)
 305 {
 306         ModestAttachmentsViewPrivate *priv = NULL;
 307         GList *box_children = NULL, *node = NULL;
 308
 309         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view));
 310         g_return_if_fail (att_id != NULL);
 311
 312         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 313         box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 314
 315         for (node = box_children; node != NULL; node = g_list_next (node)) {
 316                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
 317                 TnyMimePart *cur_mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 318                 const gchar *mime_part_id = NULL;
 319
 320                 mime_part_id = tny_mime_part_get_content_id (cur_mime_part);
 321                 if ((mime_part_id != NULL) && (strcmp (mime_part_id, att_id) == 0)) {
 322                         gtk_widget_destroy (GTK_WIDGET (att_view));
 323                         priv->selected = g_list_remove (priv->selected, att_view);
 324                 }
 325
 326                 g_object_unref (cur_mime_part);
 327         }
 328
 329         own_clipboard (atts_view);
 330
 331         gtk_widget_queue_resize (GTK_WIDGET (atts_view));
 332 }
 333
 334 static void
 335 modest_attachments_view_instance_init (GTypeInstance *instance, gpointer g_class)
 336 {
 337         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (instance);
 338
 339         priv->msg = NULL;
 340         priv->box = gtk_vbox_new (FALSE, 0);
 341         priv->rubber_start = NULL;
 342         priv->selected = NULL;
 343         priv->style = MODEST_ATTACHMENTS_VIEW_STYLE_SELECTABLE;
 344
 345         gtk_container_add (GTK_CONTAINER (instance), priv->box);
 346         gtk_event_box_set_above_child (GTK_EVENT_BOX (instance), TRUE);
 347
 348         g_signal_connect (G_OBJECT (instance), "button-press-event", G_CALLBACK (button_press_event), instance);
 349         g_signal_connect (G_OBJECT (instance), "button-release-event", G_CALLBACK (button_release_event), instance);
 350         g_signal_connect (G_OBJECT (instance), "motion-notify-event", G_CALLBACK (motion_notify_event), instance);
 351         g_signal_connect (G_OBJECT (instance), "key-press-event", G_CALLBACK (key_press_event), instance);
 352         g_signal_connect (G_OBJECT (instance), "focus-out-event", G_CALLBACK (focus_out_event), instance);
 353         g_signal_connect (G_OBJECT (instance), "focus", G_CALLBACK (focus), instance);
 354
 355         GTK_WIDGET_SET_FLAGS (instance, GTK_CAN_FOCUS);
 356
 357         return;
 358 }
 359
 360 static void
 361 modest_attachments_view_finalize (GObject *object)
 362 {
 363         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (object);
 364
 365         if (priv->msg) {
 366                 g_object_unref (priv->msg);
 367                 priv->msg = NULL;
 368         }
 369
 370         (*parent_class->finalize) (object);
 371
 372         return;
 373 }
 374
 375 static void
 376 modest_attachments_view_class_init (ModestAttachmentsViewClass *klass)
 377 {
 378         GObjectClass *object_class;
 379         GtkWidgetClass *widget_class;
 380
 381         parent_class = g_type_class_peek_parent (klass);
 382         object_class = (GObjectClass*) klass;
 383         widget_class = GTK_WIDGET_CLASS (klass);
 384
 385         object_class->finalize = modest_attachments_view_finalize;
 386
 387         klass->activate = NULL;
 388
 389         g_type_class_add_private (object_class, sizeof (ModestAttachmentsViewPrivate));
 390
 391         signals[ACTIVATE_SIGNAL] =
 392                 g_signal_new ("activate",
 393                               G_TYPE_FROM_CLASS (object_class),
 394                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 395                               G_STRUCT_OFFSET(ModestAttachmentsViewClass, activate),
 396                               NULL, NULL,
 397                               g_cclosure_marshal_VOID__OBJECT,
 398                               G_TYPE_NONE, 1, G_TYPE_OBJECT);
 399
 400         signals[DELETE_SIGNAL] =
 401                 g_signal_new ("delete",
 402                               G_TYPE_FROM_CLASS (object_class),
 403                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 404                               G_STRUCT_OFFSET(ModestAttachmentsViewClass, delete),
 405                               NULL, NULL,
 406                               g_cclosure_marshal_VOID__VOID,
 407                               G_TYPE_NONE, 0);
 408
 409         return;
 410 }
 411
 412 GType
 413 modest_attachments_view_get_type (void)
 414 {
 415         static GType type = 0;
 416
 417         if (G_UNLIKELY(type == 0))
 418         {
 419                 static const GTypeInfo info =
 420                 {
 421                   sizeof (ModestAttachmentsViewClass),
 422                   NULL,   /* base_init */
 423                   NULL,   /* base_finalize */
 424                   (GClassInitFunc) modest_attachments_view_class_init,   /* class_init */
 425                   NULL,   /* class_finalize */
 426                   NULL,   /* class_data */
 427                   sizeof (ModestAttachmentsView),
 428                   0,      /* n_preallocs */
 429                   modest_attachments_view_instance_init    /* instance_init */
 430                 };
 431
 432                 type = g_type_register_static (GTK_TYPE_EVENT_BOX,
 433                         "ModestAttachmentsView",
 434                         &info, 0);
 435
 436         }
 437
 438         return type;
 439 }
 440
 441 /* buttons signal events */
 442 static gboolean
 443 button_press_event (GtkWidget *widget,
 444                     GdkEventButton *event,
 445                     ModestAttachmentsView *atts_view)
 446 {
 447         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 448         if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_SELECTABLE &&
 449             !GTK_WIDGET_HAS_FOCUS (widget))
 450                 gtk_widget_grab_focus (widget);
 451
 452         if (event->button == 1 && event->type == GDK_BUTTON_PRESS) {
 453                 GtkWidget *att_view = NULL;
 454
 455                 att_view = get_att_view_at_coords (MODEST_ATTACHMENTS_VIEW (widget),
 456                                                    (gint) event->x_root, (gint) event->y_root);
 457
 458                 if (att_view != NULL) {
 459                         if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_NO_FOCUS) {
 460                                 unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
 461                         } else if ((priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_LINKS) ||
 462                             (GTK_WIDGET_STATE (att_view) == GTK_STATE_SELECTED && (g_list_length (priv->selected) < 2))) {
 463                                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 464                                 if (TNY_IS_MIME_PART (mime_part)) {
 465                                         g_signal_emit (G_OBJECT (widget), signals[ACTIVATE_SIGNAL], 0, mime_part);
 466                                         g_object_unref (mime_part);
 467                                 }
 468                         } else {
 469                                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 470
 471                                 /* Do not select purged attachments */
 472                                 if (TNY_IS_MIME_PART (mime_part) && !tny_mime_part_is_purged (mime_part)) {
 473                                         set_selected (MODEST_ATTACHMENTS_VIEW (widget), MODEST_ATTACHMENT_VIEW (att_view));
 474                                         priv->rubber_start = att_view;
 475                                         gtk_grab_add (widget);
 476                                 }
 477                                 g_object_unref (mime_part);
 478                         }
 479                 }
 480         }
 481         return TRUE;
 482
 483 }
 484
 485 static gboolean
 486 button_release_event (GtkWidget *widget,
 487                       GdkEventButton *event,
 488                       ModestAttachmentsView *atts_view)
 489 {
 490         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 491         if (widget == gtk_grab_get_current ()) {
 492                 GtkWidget *att_view = NULL;
 493
 494                 att_view = get_att_view_at_coords (MODEST_ATTACHMENTS_VIEW (widget),
 495                                                    (gint) event->x_root, (gint) event->y_root);
 496
 497                 if (att_view != NULL) {
 498                         unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
 499                         select_range (MODEST_ATTACHMENTS_VIEW (widget),
 500                                       MODEST_ATTACHMENT_VIEW (priv->rubber_start),
 501                                       MODEST_ATTACHMENT_VIEW (att_view));
 502                 }
 503                 priv->rubber_start = NULL;
 504                 gtk_grab_remove (widget);
 505         }
 506         return TRUE;
 507 }
 508
 509 static gboolean
 510 motion_notify_event (GtkWidget *widget,
 511                      GdkEventMotion *event,
 512                      ModestAttachmentsView *atts_view)
 513 {
 514         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 515         if (gtk_grab_get_current () == widget) {
 516                 GtkWidget *att_view = NULL;
 517
 518                 att_view = get_att_view_at_coords (MODEST_ATTACHMENTS_VIEW (widget),
 519                                                    (gint) event->x_root, (gint) event->y_root);
 520
 521                 if (att_view != NULL) {
 522                         unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
 523                         select_range (MODEST_ATTACHMENTS_VIEW (widget),
 524                                       MODEST_ATTACHMENT_VIEW (priv->rubber_start),
 525                                       MODEST_ATTACHMENT_VIEW (att_view));
 526                 }
 527         }
 528         return TRUE;
 529 }
 530
 531 static GList*
 532 find_prev_or_next_not_purged (GList *list, gboolean prev, gboolean include_this)
 533 {
 534         GList *tmp = NULL;
 535         gboolean is_valid;
 536
 537         if (!include_this) {
 538                 if (prev) {
 539                         tmp = g_list_previous (list);
 540                 } else {
 541                         tmp = g_list_next (list);
 542                 }
 543         } else {
 544                 tmp = list;
 545         }
 546
 547         if (!tmp)
 548                 return NULL;
 549
 550         do {
 551                 ModestAttachmentView *att_view = (ModestAttachmentView *) tmp->data;
 552                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 553
 554                 /* Do not select purged attachments */
 555                 if (TNY_IS_MIME_PART (mime_part) && !tny_mime_part_is_purged (mime_part)) {
 556                         is_valid = TRUE;
 557                 } else {
 558                         if (prev)
 559                                 tmp = g_list_previous (tmp);
 560                         else
 561                                 tmp = g_list_next (tmp);
 562                         is_valid = FALSE;
 563                 }
 564                 g_object_unref (mime_part);
 565         } while (!is_valid && tmp);
 566
 567         return tmp;
 568 }
 569
 570
 571 static gboolean
 572 key_press_event (GtkWidget *widget,
 573                  GdkEventKey *event,
 574                  ModestAttachmentsView *atts_view)
 575 {
 576         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 577
 578         if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_NO_FOCUS) {
 579                 unselect_all (atts_view);
 580                 return FALSE;
 581         }
 582
 583         /* If grabbed (for example rubber banding), escape leaves the rubberbanding mode */
 584         if (gtk_grab_get_current () == widget) {
 585                 if (event->keyval == GDK_Escape) {
 586                         set_selected (MODEST_ATTACHMENTS_VIEW (widget),
 587                                       MODEST_ATTACHMENT_VIEW (priv->rubber_start));
 588                         priv->rubber_start = NULL;
 589                         gtk_grab_remove (widget);
 590                         return TRUE;
 591                 }
 592                 return FALSE;
 593         }
 594
 595         if (event->keyval == GDK_Up) {
 596                 ModestAttachmentView *current_sel = NULL;
 597                 gboolean move_out = FALSE;
 598                 GList * box_children, *new_sel, *first_child;
 599
 600                 box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 601                 if (box_children == NULL) {
 602                         move_out = TRUE;
 603                 } else {
 604                         first_child = box_children;
 605                         first_child = find_prev_or_next_not_purged (box_children, FALSE, TRUE);
 606                         if (priv->selected != NULL && first_child != NULL) {
 607                                 if (priv->selected->data != first_child->data)
 608                                         current_sel = (ModestAttachmentView *) priv->selected->data;
 609                                 else
 610                                         move_out = TRUE;
 611                         } else {
 612                                 move_out = TRUE;
 613                         }
 614                 }
 615
 616                 if (move_out) {
 617                         GtkWidget *toplevel = NULL;
 618                         /* move cursor outside */
 619                         toplevel = gtk_widget_get_toplevel (widget);
 620                         if (GTK_WIDGET_TOPLEVEL (toplevel) && GTK_IS_WINDOW (toplevel))
 621                                 g_signal_emit_by_name (toplevel, "move-focus", GTK_DIR_UP);
 622                         unselect_all (atts_view);
 623                 } else {
 624                         new_sel = g_list_find (box_children, (gpointer) current_sel);
 625                         new_sel = find_prev_or_next_not_purged (new_sel, TRUE, FALSE);
 626                         /* We assume that we detected properly that
 627                            there is a not purge attachment so we don't
 628                            need to check NULL */
 629                         set_selected (MODEST_ATTACHMENTS_VIEW (atts_view), MODEST_ATTACHMENT_VIEW (new_sel->data));
 630                 }
 631                 g_list_free (box_children);
 632                 return TRUE;
 633         }
 634
 635         if (event->keyval == GDK_Down) {
 636                 ModestAttachmentView *current_sel = NULL;
 637                 gboolean move_out = FALSE;
 638                 GList * box_children, *new_sel, *last_child = NULL;
 639
 640                 box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 641
 642                 if (box_children == NULL) {
 643                         move_out = TRUE;
 644                 } else {
 645                         last_child = g_list_last (box_children);
 646                         last_child = find_prev_or_next_not_purged (last_child, TRUE, TRUE);
 647                         if (priv->selected != NULL && last_child != NULL) {
 648                                 GList *last_selected = g_list_last (priv->selected);
 649                                 if (last_selected->data != last_child->data)
 650                                         current_sel = (ModestAttachmentView *) last_selected->data;
 651                                 else
 652                                         move_out = TRUE;
 653                         } else {
 654                                 move_out = TRUE;
 655                         }
 656                 }
 657
 658                 if (move_out) {
 659                         GtkWidget *toplevel = NULL;
 660                         /* move cursor outside */
 661                         toplevel = gtk_widget_get_toplevel (widget);
 662                         if (GTK_WIDGET_TOPLEVEL (toplevel) && GTK_IS_WINDOW (toplevel))
 663                                 g_signal_emit_by_name (toplevel, "move-focus", GTK_DIR_DOWN);
 664                         unselect_all (atts_view);
 665                 } else {
 666                         new_sel = g_list_find (box_children, (gpointer) current_sel);
 667                         new_sel = find_prev_or_next_not_purged (new_sel, FALSE, FALSE);
 668                         set_selected (MODEST_ATTACHMENTS_VIEW (atts_view), MODEST_ATTACHMENT_VIEW (new_sel->data));
 669                 }
 670                 g_list_free (box_children);
 671                 return TRUE;
 672         }
 673
 674         if (event->keyval == GDK_BackSpace) {
 675                 g_signal_emit (G_OBJECT (widget), signals[DELETE_SIGNAL], 0);
 676                 return TRUE;
 677         }
 678
 679         /* Activates selected item */
 680         if (g_list_length (priv->selected) == 1) {
 681                 ModestAttachmentView *att_view = (ModestAttachmentView *) priv->selected->data;
 682                 if ((event->keyval == GDK_Return)) {
 683                         TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 684                         if (TNY_IS_MIME_PART (mime_part)) {
 685                                 g_signal_emit (G_OBJECT (widget), signals[ACTIVATE_SIGNAL], 0, mime_part);
 686                                 g_object_unref (mime_part);
 687                         }
 688                         return TRUE;
 689                 }
 690         }
 691
 692         return FALSE;
 693 }
 694
 695
 696 static GtkWidget *
 697 get_att_view_at_coords (ModestAttachmentsView *atts_view,
 698                         gdouble x, gdouble y)
 699 {
 700         ModestAttachmentsViewPrivate *priv = NULL;
 701         GList *att_view_list, *node;
 702         GtkWidget *result = NULL;
 703
 704         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 705         att_view_list = gtk_container_get_children (GTK_CONTAINER (priv->box));
 706
 707         for (node = att_view_list; node != NULL; node = g_list_next (node)) {
 708                 GtkWidget *att_view = (GtkWidget *) node->data;
 709                 gint pos_x, pos_y, w, h, int_x, int_y;
 710                 gint widget_x, widget_y;
 711
 712                 gdk_window_get_origin (att_view->window, &widget_x, &widget_y);
 713
 714                 pos_x = widget_x;
 715                 pos_y = widget_y;
 716                 w = att_view->allocation.width;
 717                 h = att_view->allocation.height;
 718
 719                 int_x = (gint) x - GTK_WIDGET (atts_view)->allocation.x;
 720                 int_y = (gint) y - GTK_WIDGET (atts_view)->allocation.y;
 721
 722                 if ((x >= pos_x) && (x <= (pos_x + w)) && (y >= pos_y) && (y <= (pos_y + h))) {
 723                         result = att_view;
 724                         break;
 725                 }
 726         }
 727
 728         g_list_free (att_view_list);
 729         return result;
 730 }
 731
 732 static void
 733 unselect_all (ModestAttachmentsView *atts_view)
 734 {
 735         ModestAttachmentsViewPrivate *priv = NULL;
 736         GList *att_view_list, *node;
 737
 738         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 739         att_view_list = gtk_container_get_children (GTK_CONTAINER (priv->box));
 740
 741         for (node = att_view_list; node != NULL; node = g_list_next (node)) {
 742                 GtkWidget *att_view = (GtkWidget *) node->data;
 743
 744                 if (GTK_WIDGET_STATE (att_view) == GTK_STATE_SELECTED)
 745                         gtk_widget_set_state (att_view, GTK_STATE_NORMAL);
 746         }
 747
 748         g_list_free (priv->selected);
 749         priv->selected = NULL;
 750
 751         g_list_free (att_view_list);
 752 }
 753
 754 static void
 755 set_selected (ModestAttachmentsView *atts_view, ModestAttachmentView *att_view)
 756 {
 757         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 758         TnyMimePart *part;
 759
 760         unselect_all (atts_view);
 761         part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 762
 763         g_list_free (priv->selected);
 764         priv->selected = NULL;
 765         if (TNY_IS_MIME_PART (part) && !tny_mime_part_is_purged (part)) {
 766                 gtk_widget_set_state (GTK_WIDGET (att_view), GTK_STATE_SELECTED);
 767                 priv->selected = g_list_append (priv->selected, att_view);
 768         }
 769         if (part)
 770                 g_object_unref (part);
 771
 772         own_clipboard (atts_view);
 773 }
 774
 775 static void
 776 select_range (ModestAttachmentsView *atts_view, ModestAttachmentView *att1, ModestAttachmentView *att2)
 777 {
 778         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 779         GList *children = NULL;
 780         GList *node = NULL;
 781         gboolean selecting = FALSE;
 782         TnyMimePart *part;
 783
 784         unselect_all (atts_view);
 785
 786         if (att1 == att2) {
 787                 set_selected (atts_view, att1);
 788                 return;
 789         }
 790
 791         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 792         g_list_free (priv->selected);
 793         priv->selected = NULL;
 794
 795
 796         for (node = children; node != NULL; node = g_list_next (node)) {
 797                 if ((node->data == att1) || (node->data == att2)) {
 798                         part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (node->data));
 799                         if (!tny_mime_part_is_purged (part)) {
 800                                 gtk_widget_set_state (GTK_WIDGET (node->data), GTK_STATE_SELECTED);
 801                                 priv->selected = g_list_append (priv->selected, node->data);
 802                         }
 803                         g_object_unref (part);
 804                         selecting = !selecting;
 805                 } else if (selecting) {
 806                         part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (node->data));
 807                         if (!tny_mime_part_is_purged (part)) {
 808                                 gtk_widget_set_state (GTK_WIDGET (node->data), GTK_STATE_SELECTED);
 809                                 priv->selected = g_list_append (priv->selected, node->data);
 810                         }
 811                         g_object_unref (part);
 812                 }
 813
 814         }
 815         g_list_free (children);
 816
 817         own_clipboard (atts_view);
 818 }
 819
 820 static void clipboard_get (GtkClipboard *clipboard, GtkSelectionData *selection_data,
 821                            guint info, gpointer userdata)
 822 {
 823         ModestAttachmentsView *atts_view = (ModestAttachmentsView *) userdata;
 824         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 825
 826         if ((priv->selected != NULL)&&(priv->selected->next == NULL)) {
 827                 if (info == MODEST_ATTACHMENTS_VIEW_CLIPBOARD_TYPE_INDEX) {
 828                         /* MODEST_ATTACHMENT requested. As the content id is not filled in all the case, we'll
 829                          * use an internal index. This index is simply the index of the attachment in the vbox */
 830                         GList *box_children = NULL;
 831                         gint index;
 832                         box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 833                         index = g_list_index (box_children, priv->selected);
 834                         if (index >= 0) {
 835                                 gchar *index_str = g_strdup_printf("%d", index);
 836                                 gtk_selection_data_set_text (selection_data, index_str, -1);
 837                                 g_free (index_str);
 838                         }
 839                 }
 840         }
 841 }
 842
 843 TnyList *
 844 modest_attachments_view_get_selection (ModestAttachmentsView *atts_view)
 845 {
 846         ModestAttachmentsViewPrivate *priv;
 847         TnyList *selection;
 848         GList *node;
 849
 850         g_return_val_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view), NULL);
 851         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 852
 853         selection = tny_simple_list_new ();
 854         for (node = priv->selected; node != NULL; node = g_list_next (node)) {
 855                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
 856                 TnyMimePart *part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 857                 tny_list_append (selection, (GObject *) part);
 858                 g_object_unref (part);
 859         }
 860
 861         return selection;
 862 }
 863
 864 TnyList *
 865 modest_attachments_view_get_attachments (ModestAttachmentsView *atts_view)
 866 {
 867         ModestAttachmentsViewPrivate *priv;
 868         TnyList *att_list;
 869         GList *children, *node= NULL;
 870
 871         g_return_val_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view), NULL);
 872         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 873
 874         att_list = TNY_LIST (tny_simple_list_new ());
 875
 876         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 877         for (node = children; node != NULL; node = g_list_next (node)) {
 878                 GtkWidget *att_view = GTK_WIDGET (node->data);
 879                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 880                 tny_list_append (att_list, (GObject *) mime_part);
 881                 g_object_unref (mime_part);
 882         }
 883         g_list_free (children);
 884         return att_list;
 885
 886 }
 887
 888 void
 889 modest_attachments_view_select_all (ModestAttachmentsView *atts_view)
 890 {
 891         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 892         GList *children = NULL;
 893         GList *node = NULL;
 894
 895         unselect_all (atts_view);
 896
 897         if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_LINKS)
 898                 return;
 899
 900         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 901         g_list_free (priv->selected);
 902         priv->selected = NULL;
 903
 904         for (node = children; node != NULL; node = g_list_next (node)) {
 905                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
 906                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 907
 908                 /* Do not select purged attachments */
 909                 if (TNY_IS_MIME_PART (mime_part) && !tny_mime_part_is_purged (mime_part)) {
 910                         gtk_widget_set_state (GTK_WIDGET (node->data), GTK_STATE_SELECTED);
 911                         priv->selected = g_list_append (priv->selected, node->data);
 912                 }
 913                 g_object_unref (mime_part);
 914         }
 915         g_list_free (children);
 916
 917         own_clipboard (atts_view);
 918 }
 919
 920 gboolean
 921 modest_attachments_view_has_attachments (ModestAttachmentsView *atts_view)
 922 {
 923         ModestAttachmentsViewPrivate *priv;
 924         GList *children;
 925         gboolean result;
 926
 927         g_return_val_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view), FALSE);
 928         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 929
 930         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 931         result = (children != NULL);
 932         g_list_free (children);
 933
 934         return result;
 935 }
 936
 937 void
 938 modest_attachments_view_get_sizes (ModestAttachmentsView *attachments_view,
 939                                    gint *attachments_count,
 940                                    guint64 *attachments_size)
 941 {
 942         ModestAttachmentsViewPrivate *priv;
 943         GList *children, *node;
 944
 945         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (attachments_view));
 946         g_return_if_fail (attachments_count != NULL && attachments_size != NULL);
 947
 948         *attachments_count = 0;
 949         *attachments_size = 0;
 950
 951         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (attachments_view);
 952
 953         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 954         for (node = children; node != NULL; node = g_list_next (node)) {
 955                 GtkWidget *att_view = (GtkWidget *) node->data;
 956                 TnyMimePart *part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 957
 958                 if (!tny_mime_part_is_purged (part)) {
 959                         guint64 size;
 960                         (*attachments_count) ++;
 961                         size = modest_attachment_view_get_size (MODEST_ATTACHMENT_VIEW (att_view));
 962                         if (size == 0) {
 963                                 /* we do a random estimation of the size of an attachment */
 964                                 size = 32768;
 965                         }
 966                         *attachments_size += size;
 967
 968                 }
 969                 g_object_unref (part);
 970         }
 971         g_list_free (children);
 972 }
 973
 974 static void
 975 own_clipboard (ModestAttachmentsView *atts_view)
 976 {
 977         GtkTargetEntry targets[] = {
 978                 {MODEST_ATTACHMENTS_VIEW_CLIPBOARD_TYPE, 0, MODEST_ATTACHMENTS_VIEW_CLIPBOARD_TYPE_INDEX},
 979         };
 980
 981         gtk_clipboard_set_with_owner (gtk_widget_get_clipboard (GTK_WIDGET (atts_view), GDK_SELECTION_PRIMARY),
 982                                       targets, G_N_ELEMENTS (targets),
 983                                       clipboard_get, NULL, G_OBJECT(atts_view));
 984
 985 }
 986
 987 static gboolean
 988 focus_out_event (GtkWidget *widget, GdkEventFocus *event, ModestAttachmentsView *atts_view)
 989 {
 990         if (!gtk_widget_is_focus (widget))
 991                 unselect_all (atts_view);
 992
 993         return FALSE;
 994 }
 995
 996 static gboolean
 997 focus (GtkWidget *widget, GtkDirectionType direction, ModestAttachmentsView *atts_view)
 998 {
 999         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
1000         GList *children = NULL;
1001         GtkWidget *toplevel = NULL;
1002
1003         toplevel = gtk_widget_get_toplevel (widget);
1004         if (!gtk_window_has_toplevel_focus (GTK_WINDOW (toplevel)))
1005                 return FALSE;
1006
1007         if (priv->style != MODEST_ATTACHMENTS_VIEW_STYLE_NO_FOCUS) {
1008                 children = gtk_container_get_children (GTK_CONTAINER (priv->box));
1009                 if (children != NULL) {
1010                         set_selected (atts_view, MODEST_ATTACHMENT_VIEW (children->data));
1011                 }
1012                 g_list_free (children);
1013         }
1014
1015         return FALSE;
1016 }
1017
1018 void
1019 modest_attachments_view_set_style (ModestAttachmentsView *self,
1020                                    ModestAttachmentsViewStyle style)
1021 {
1022         ModestAttachmentsViewPrivate *priv;
1023
1024         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (self));
1025         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (self);
1026
1027         if (priv->style != style) {
1028                 priv->style = style;
1029                 gtk_widget_queue_draw (GTK_WIDGET (self));
1030                 if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_SELECTABLE) {
1031                         GTK_WIDGET_SET_FLAGS (self, GTK_CAN_FOCUS);
1032                 } else {
1033                         GTK_WIDGET_UNSET_FLAGS (self, GTK_CAN_FOCUS);
1034                 }
1035
1036         }
1037 }