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 #include <modest-tny-msg.h>
  44
  45 static GObjectClass *parent_class = NULL;
  46
  47 /* signals */
  48 enum {
  49         ACTIVATE_SIGNAL,
  50         DELETE_SIGNAL,
  51         LAST_SIGNAL
  52 };
  53
  54 typedef struct _ModestAttachmentsViewPrivate ModestAttachmentsViewPrivate;
  55
  56 struct _ModestAttachmentsViewPrivate
  57 {
  58         TnyMsg *msg;
  59         GtkWidget *box;
  60         GList *selected;
  61         GtkWidget *rubber_start;
  62         GtkWidget *press_att_view;
  63         ModestAttachmentsViewStyle style;
  64 };
  65
  66 #define MODEST_ATTACHMENTS_VIEW_GET_PRIVATE(o)  \
  67         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_ATTACHMENTS_VIEW, ModestAttachmentsViewPrivate))
  68
  69 static gboolean button_press_event (GtkWidget *widget, GdkEventButton *event, ModestAttachmentsView *atts_view);
  70 static gboolean motion_notify_event (GtkWidget *widget, GdkEventMotion *event, ModestAttachmentsView *atts_view);
  71 static gboolean button_release_event (GtkWidget *widget, GdkEventButton *event, ModestAttachmentsView *atts_view);
  72 static gboolean key_press_event (GtkWidget *widget, GdkEventKey *event, ModestAttachmentsView *atts_view);
  73 static gboolean focus_out_event (GtkWidget *widget, GdkEventFocus *event, ModestAttachmentsView *atts_view);
  74 static gboolean focus (GtkWidget *widget, GtkDirectionType direction, ModestAttachmentsView *atts_view);
  75 static GtkWidget *get_att_view_at_coords (ModestAttachmentsView *atts_view,
  76                                           gdouble x, gdouble y);
  77 static void unselect_all (ModestAttachmentsView *atts_view);
  78 static void set_selected (ModestAttachmentsView *atts_view, ModestAttachmentView *att_view);
  79 static void select_range (ModestAttachmentsView *atts_view, ModestAttachmentView *att1, ModestAttachmentView *att2);
  80 static void clipboard_get (GtkClipboard *clipboard, GtkSelectionData *selection_data,
  81                            guint info, gpointer userdata);
  82 static void own_clipboard (ModestAttachmentsView *atts_view);
  83
  84 static guint signals[LAST_SIGNAL] = {0};
  85
  86 /**
  87  * modest_attachments_view_new:
  88  * @msg: a #TnyMsg
  89  *
  90  * Constructor for attachments view widget.
  91  *
  92  * Return value: a new #ModestAttachmentsView instance implemented for Gtk+
  93  **/
  94 GtkWidget*
  95 modest_attachments_view_new (TnyMsg *msg)
  96 {
  97         ModestAttachmentsView *self = g_object_new (MODEST_TYPE_ATTACHMENTS_VIEW,
  98                                                     "resize-mode", GTK_RESIZE_PARENT,
  99                                                     NULL);
 100
 101         modest_attachments_view_set_message (self, msg);
 102
 103         return GTK_WIDGET (self);
 104 }
 105
 106
 107 void
 108 modest_attachments_view_set_message (ModestAttachmentsView *attachments_view, TnyMsg *msg)
 109 {
 110         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (attachments_view);
 111         TnyList *parts;
 112         TnyIterator *iter;
 113         gchar *msg_content_type = NULL;
 114         TnyMimePart *part_to_check;
 115
 116         if (msg == priv->msg) return;
 117
 118         if (priv->msg)
 119                 g_object_unref (priv->msg);
 120         if (msg)
 121                 g_object_ref (G_OBJECT(msg));
 122
 123         priv->msg = msg;
 124
 125         g_list_free (priv->selected);
 126         priv->selected = NULL;
 127
 128         gtk_container_foreach (GTK_CONTAINER (priv->box), (GtkCallback) gtk_widget_destroy, NULL);
 129
 130         if (priv->msg == NULL) {
 131                 return;
 132         }
 133
 134         part_to_check = modest_tny_msg_get_attachments_parent (TNY_MSG (msg));
 135
 136         msg_content_type = modest_tny_mime_part_get_content_type (TNY_MIME_PART (part_to_check));
 137
 138         /* If the top mime part is a multipart/related, we don't show the attachments, as they're
 139          * embedded images in body */
 140         if ((msg_content_type != NULL) && !strcasecmp (msg_content_type, "multipart/related")) {
 141                 gchar *header_content_type;
 142                 gboolean application_multipart = FALSE;
 143
 144                 g_free (msg_content_type);
 145
 146                 header_content_type = modest_tny_mime_part_get_headers_content_type (TNY_MIME_PART (part_to_check));
 147
 148                 if ((header_content_type != NULL) &&
 149                     !strstr (header_content_type, "application/")) {
 150                         application_multipart = TRUE;
 151                 }
 152                 g_free (header_content_type);
 153
 154                 if (application_multipart) {
 155                         gtk_widget_queue_draw (GTK_WIDGET (attachments_view));
 156                         g_object_unref (part_to_check);
 157                         return;
 158                 }
 159         } else {
 160                 gboolean direct_attach;
 161
 162                 direct_attach = (!g_str_has_prefix (msg_content_type, "message/rfc822") &&
 163                                  !g_str_has_prefix (msg_content_type, "multipart") &&
 164                                  !g_str_has_prefix (msg_content_type, "text/"));
 165
 166                 g_free (msg_content_type);
 167
 168                 if (direct_attach) {
 169                         modest_attachments_view_add_attachment (attachments_view, TNY_MIME_PART (part_to_check), TRUE, 0);
 170                         gtk_widget_queue_draw (GTK_WIDGET (attachments_view));
 171                         g_object_unref (part_to_check);
 172                         return;
 173                 }
 174         }
 175
 176         parts = TNY_LIST (tny_simple_list_new ());
 177         tny_mime_part_get_parts (TNY_MIME_PART (part_to_check), parts);
 178         iter = tny_list_create_iterator (parts);
 179
 180         while (!tny_iterator_is_done (iter)) {
 181                 TnyMimePart *part;
 182
 183                 part = TNY_MIME_PART (tny_iterator_get_current (iter));
 184
 185                 if (part && (modest_tny_mime_part_is_attachment_for_modest (part)))
 186                         modest_attachments_view_add_attachment (attachments_view, part, TRUE, 0);
 187
 188                 if (part)
 189                         g_object_unref (part);
 190
 191                 tny_iterator_next (iter);
 192         }
 193         g_object_unref (iter);
 194         g_object_unref (parts);
 195         g_object_unref (part_to_check);
 196
 197
 198         gtk_widget_queue_draw (GTK_WIDGET (attachments_view));
 199
 200 }
 201
 202 void
 203 modest_attachments_view_add_attachment (ModestAttachmentsView *attachments_view, TnyMimePart *part,
 204                                         gboolean detect_size, guint64 size)
 205 {
 206         GtkWidget *att_view = NULL;
 207         ModestAttachmentsViewPrivate *priv = NULL;
 208
 209         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (attachments_view));
 210         g_return_if_fail (TNY_IS_MIME_PART (part));
 211
 212         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (attachments_view);
 213
 214         att_view = modest_attachment_view_new (part, detect_size);
 215         if (!detect_size)
 216                 modest_attachment_view_set_size (MODEST_ATTACHMENT_VIEW (att_view), size);
 217         gtk_box_pack_start (GTK_BOX (priv->box), att_view, FALSE, FALSE, 0);
 218         gtk_widget_show_all (att_view);
 219         gtk_widget_queue_resize (GTK_WIDGET (attachments_view));
 220 }
 221
 222 void
 223 modest_attachments_view_remove_attachment (ModestAttachmentsView *atts_view, TnyMimePart *mime_part)
 224 {
 225         ModestAttachmentsViewPrivate *priv = NULL;
 226         GList *box_children = NULL, *node = NULL;
 227         ModestAttachmentView *found_att_view = NULL;
 228
 229         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view));
 230         g_return_if_fail (TNY_IS_MIME_PART (mime_part));
 231
 232         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 233         box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 234
 235         for (node = box_children; node != NULL; node = g_list_next (node)) {
 236                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
 237                 TnyMimePart *cur_mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 238
 239                 if (mime_part == cur_mime_part)
 240                         found_att_view = att_view;
 241
 242                 g_object_unref (cur_mime_part);
 243
 244                 if (found_att_view != NULL)
 245                         break;
 246         }
 247
 248         if (found_att_view) {
 249                 GList *node = NULL;
 250                 GtkWidget *next_widget = NULL;
 251                 GList *box_children = NULL;
 252
 253                 box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 254                 node = g_list_find (box_children, found_att_view);
 255                 if (node && node->next)
 256                         next_widget = node->next->data;
 257
 258                 g_list_free (box_children);
 259                 gtk_widget_destroy (GTK_WIDGET (found_att_view));
 260
 261                 node = g_list_find (priv->selected, found_att_view);
 262                 if (node) {
 263                         priv->selected = g_list_delete_link (priv->selected, node);
 264                         if ((priv->selected == NULL) && (next_widget != NULL))
 265                                 set_selected (MODEST_ATTACHMENTS_VIEW (atts_view),
 266                                               MODEST_ATTACHMENT_VIEW (next_widget));
 267                 }
 268                 own_clipboard (atts_view);
 269
 270         }
 271
 272         gtk_widget_queue_resize (GTK_WIDGET (atts_view));
 273 }
 274
 275 void
 276 modest_attachments_view_remove_attachment_by_id (ModestAttachmentsView *atts_view, const gchar *att_id)
 277 {
 278         ModestAttachmentsViewPrivate *priv = NULL;
 279         GList *box_children = NULL, *node = NULL;
 280
 281         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view));
 282         g_return_if_fail (att_id != NULL);
 283
 284         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 285         box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 286
 287         for (node = box_children; node != NULL; node = g_list_next (node)) {
 288                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
 289                 TnyMimePart *cur_mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 290                 const gchar *mime_part_id = NULL;
 291
 292                 mime_part_id = tny_mime_part_get_content_id (cur_mime_part);
 293                 if ((mime_part_id != NULL) && (strcmp (mime_part_id, att_id) == 0)) {
 294                         gtk_widget_destroy (GTK_WIDGET (att_view));
 295                         priv->selected = g_list_remove (priv->selected, att_view);
 296                 }
 297
 298                 g_object_unref (cur_mime_part);
 299         }
 300
 301         own_clipboard (atts_view);
 302
 303         gtk_widget_queue_resize (GTK_WIDGET (atts_view));
 304 }
 305
 306 static void
 307 modest_attachments_view_instance_init (GTypeInstance *instance, gpointer g_class)
 308 {
 309         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (instance);
 310
 311         priv->msg = NULL;
 312         priv->box = gtk_vbox_new (FALSE, 0);
 313         priv->rubber_start = NULL;
 314         priv->press_att_view = NULL;
 315         priv->selected = NULL;
 316         priv->style = MODEST_ATTACHMENTS_VIEW_STYLE_SELECTABLE;
 317
 318         gtk_container_add (GTK_CONTAINER (instance), priv->box);
 319         gtk_event_box_set_above_child (GTK_EVENT_BOX (instance), TRUE);
 320
 321         g_signal_connect (G_OBJECT (instance), "button-press-event", G_CALLBACK (button_press_event), instance);
 322         g_signal_connect (G_OBJECT (instance), "button-release-event", G_CALLBACK (button_release_event), instance);
 323         g_signal_connect (G_OBJECT (instance), "motion-notify-event", G_CALLBACK (motion_notify_event), instance);
 324         g_signal_connect (G_OBJECT (instance), "key-press-event", G_CALLBACK (key_press_event), instance);
 325         g_signal_connect (G_OBJECT (instance), "focus-out-event", G_CALLBACK (focus_out_event), instance);
 326         g_signal_connect (G_OBJECT (instance), "focus", G_CALLBACK (focus), instance);
 327
 328         GTK_WIDGET_SET_FLAGS (instance, GTK_CAN_FOCUS);
 329
 330         return;
 331 }
 332
 333 static void
 334 modest_attachments_view_finalize (GObject *object)
 335 {
 336         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (object);
 337
 338         if (priv->msg) {
 339                 g_object_unref (priv->msg);
 340                 priv->msg = NULL;
 341         }
 342
 343         (*parent_class->finalize) (object);
 344
 345         return;
 346 }
 347
 348 static void
 349 modest_attachments_view_class_init (ModestAttachmentsViewClass *klass)
 350 {
 351         GObjectClass *object_class;
 352         GtkWidgetClass *widget_class;
 353
 354         parent_class = g_type_class_peek_parent (klass);
 355         object_class = (GObjectClass*) klass;
 356         widget_class = GTK_WIDGET_CLASS (klass);
 357
 358         object_class->finalize = modest_attachments_view_finalize;
 359
 360         klass->activate = NULL;
 361
 362         g_type_class_add_private (object_class, sizeof (ModestAttachmentsViewPrivate));
 363
 364         signals[ACTIVATE_SIGNAL] =
 365                 g_signal_new ("activate",
 366                               G_TYPE_FROM_CLASS (object_class),
 367                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 368                               G_STRUCT_OFFSET(ModestAttachmentsViewClass, activate),
 369                               NULL, NULL,
 370                               g_cclosure_marshal_VOID__OBJECT,
 371                               G_TYPE_NONE, 1, G_TYPE_OBJECT);
 372
 373         signals[DELETE_SIGNAL] =
 374                 g_signal_new ("delete",
 375                               G_TYPE_FROM_CLASS (object_class),
 376                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 377                               G_STRUCT_OFFSET(ModestAttachmentsViewClass, delete),
 378                               NULL, NULL,
 379                               g_cclosure_marshal_VOID__VOID,
 380                               G_TYPE_NONE, 0);
 381
 382         return;
 383 }
 384
 385 GType
 386 modest_attachments_view_get_type (void)
 387 {
 388         static GType type = 0;
 389
 390         if (G_UNLIKELY(type == 0))
 391         {
 392                 static const GTypeInfo info =
 393                 {
 394                   sizeof (ModestAttachmentsViewClass),
 395                   NULL,   /* base_init */
 396                   NULL,   /* base_finalize */
 397                   (GClassInitFunc) modest_attachments_view_class_init,   /* class_init */
 398                   NULL,   /* class_finalize */
 399                   NULL,   /* class_data */
 400                   sizeof (ModestAttachmentsView),
 401                   0,      /* n_preallocs */
 402                   modest_attachments_view_instance_init    /* instance_init */
 403                 };
 404
 405                 type = g_type_register_static (GTK_TYPE_EVENT_BOX,
 406                         "ModestAttachmentsView",
 407                         &info, 0);
 408
 409         }
 410
 411         return type;
 412 }
 413
 414 /* buttons signal events */
 415 static gboolean
 416 button_press_event (GtkWidget *widget,
 417                     GdkEventButton *event,
 418                     ModestAttachmentsView *atts_view)
 419 {
 420         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 421         if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_SELECTABLE &&
 422             !GTK_WIDGET_HAS_FOCUS (widget))
 423                 gtk_widget_grab_focus (widget);
 424
 425         if (event->button == 1 && event->type == GDK_BUTTON_PRESS) {
 426                 GtkWidget *att_view = NULL;
 427
 428                 att_view = get_att_view_at_coords (MODEST_ATTACHMENTS_VIEW (widget),
 429                                                    (gint) event->x_root, (gint) event->y_root);
 430
 431                 if (att_view != NULL) {
 432                         if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_NO_FOCUS) {
 433                                 unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
 434                         } else if ((priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_LINKS) ||
 435                             (GTK_WIDGET_STATE (att_view) == GTK_STATE_SELECTED && (g_list_length (priv->selected) < 2))) {
 436                                 priv->press_att_view = att_view;
 437                                 set_selected (MODEST_ATTACHMENTS_VIEW (widget), MODEST_ATTACHMENT_VIEW (att_view));
 438                                 gtk_grab_add (widget);
 439                         } else {
 440                                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 441
 442                                 /* Do not select purged attachments */
 443                                 if (TNY_IS_MIME_PART (mime_part) && !tny_mime_part_is_purged (mime_part)) {
 444                                         set_selected (MODEST_ATTACHMENTS_VIEW (widget), MODEST_ATTACHMENT_VIEW (att_view));
 445                                         priv->rubber_start = att_view;
 446                                         gtk_grab_add (widget);
 447                                 }
 448                                 g_object_unref (mime_part);
 449                         }
 450                 }
 451         }
 452         return TRUE;
 453
 454 }
 455
 456 static gboolean
 457 button_release_event (GtkWidget *widget,
 458                       GdkEventButton *event,
 459                       ModestAttachmentsView *atts_view)
 460 {
 461         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 462         if (widget == gtk_grab_get_current ()) {
 463                 GtkWidget *att_view = NULL;
 464
 465                 att_view = get_att_view_at_coords (MODEST_ATTACHMENTS_VIEW (widget),
 466                                                    (gint) event->x_root, (gint) event->y_root);
 467
 468                 if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_LINKS) {
 469                         unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
 470                         if (att_view == priv->press_att_view) {
 471                                 TnyMimePart *mime_part;
 472                                 mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 473                                 g_signal_emit (G_OBJECT (widget), signals[ACTIVATE_SIGNAL], 0, mime_part);
 474                                 g_object_unref (mime_part);
 475                         }
 476                         priv->press_att_view = NULL;
 477                 } else {
 478
 479                         if (att_view != NULL) {
 480                                 unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
 481                                 select_range (MODEST_ATTACHMENTS_VIEW (widget),
 482                                               MODEST_ATTACHMENT_VIEW (priv->rubber_start),
 483                                               MODEST_ATTACHMENT_VIEW (att_view));
 484                         }
 485                         priv->rubber_start = NULL;
 486                 }
 487                 gtk_grab_remove (widget);
 488         }
 489         return TRUE;
 490 }
 491
 492 static gboolean
 493 motion_notify_event (GtkWidget *widget,
 494                      GdkEventMotion *event,
 495                      ModestAttachmentsView *atts_view)
 496 {
 497         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 498         if (gtk_grab_get_current () == widget) {
 499                 GtkWidget *att_view = NULL;
 500
 501                 att_view = get_att_view_at_coords (MODEST_ATTACHMENTS_VIEW (widget),
 502                                                    (gint) event->x_root, (gint) event->y_root);
 503                 if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_LINKS) {
 504                         if (att_view == priv->press_att_view) {
 505                                 set_selected (MODEST_ATTACHMENTS_VIEW (widget), MODEST_ATTACHMENT_VIEW (att_view));
 506                         } else {
 507                                 unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
 508                         }
 509                 } else {
 510
 511                         if (att_view != NULL) {
 512                                 unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
 513                                 select_range (MODEST_ATTACHMENTS_VIEW (widget),
 514                                               MODEST_ATTACHMENT_VIEW (priv->rubber_start),
 515                                               MODEST_ATTACHMENT_VIEW (att_view));
 516                         }
 517                 }
 518         }
 519         return TRUE;
 520 }
 521
 522 static GList*
 523 find_prev_or_next_not_purged (GList *list, gboolean prev, gboolean include_this)
 524 {
 525         GList *tmp = NULL;
 526         gboolean is_valid;
 527
 528         if (!include_this) {
 529                 if (prev) {
 530                         tmp = g_list_previous (list);
 531                 } else {
 532                         tmp = g_list_next (list);
 533                 }
 534         } else {
 535                 tmp = list;
 536         }
 537
 538         if (!tmp)
 539                 return NULL;
 540
 541         do {
 542                 ModestAttachmentView *att_view = (ModestAttachmentView *) tmp->data;
 543                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 544
 545                 /* Do not select purged attachments */
 546                 if (TNY_IS_MIME_PART (mime_part) && !tny_mime_part_is_purged (mime_part)) {
 547                         is_valid = TRUE;
 548                 } else {
 549                         if (prev)
 550                                 tmp = g_list_previous (tmp);
 551                         else
 552                                 tmp = g_list_next (tmp);
 553                         is_valid = FALSE;
 554                 }
 555                 g_object_unref (mime_part);
 556         } while (!is_valid && tmp);
 557
 558         return tmp;
 559 }
 560
 561
 562 static gboolean
 563 key_press_event (GtkWidget *widget,
 564                  GdkEventKey *event,
 565                  ModestAttachmentsView *atts_view)
 566 {
 567         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 568
 569         if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_NO_FOCUS) {
 570                 unselect_all (atts_view);
 571                 return FALSE;
 572         }
 573
 574         /* If grabbed (for example rubber banding), escape leaves the rubberbanding mode */
 575         if (gtk_grab_get_current () == widget) {
 576                 if (event->keyval == GDK_Escape) {
 577                         set_selected (MODEST_ATTACHMENTS_VIEW (widget),
 578                                       MODEST_ATTACHMENT_VIEW (priv->rubber_start));
 579                         priv->rubber_start = NULL;
 580                         gtk_grab_remove (widget);
 581                         return TRUE;
 582                 }
 583                 return FALSE;
 584         }
 585
 586         if (event->keyval == GDK_Up) {
 587                 ModestAttachmentView *current_sel = NULL;
 588                 gboolean move_out = FALSE;
 589                 GList * box_children, *new_sel, *first_child;
 590
 591                 box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 592                 if (box_children == NULL) {
 593                         move_out = TRUE;
 594                 } else {
 595                         first_child = box_children;
 596                         first_child = find_prev_or_next_not_purged (box_children, FALSE, TRUE);
 597                         if (priv->selected != NULL && first_child != NULL) {
 598                                 if (priv->selected->data != first_child->data)
 599                                         current_sel = (ModestAttachmentView *) priv->selected->data;
 600                                 else
 601                                         move_out = TRUE;
 602                         } else {
 603                                 move_out = TRUE;
 604                         }
 605                 }
 606
 607                 if (move_out) {
 608                         GtkWidget *toplevel = NULL;
 609                         /* move cursor outside */
 610                         toplevel = gtk_widget_get_toplevel (widget);
 611                         if (GTK_WIDGET_TOPLEVEL (toplevel) && GTK_IS_WINDOW (toplevel))
 612                                 g_signal_emit_by_name (toplevel, "move-focus", GTK_DIR_UP);
 613                         unselect_all (atts_view);
 614                 } else {
 615                         new_sel = g_list_find (box_children, (gpointer) current_sel);
 616                         new_sel = find_prev_or_next_not_purged (new_sel, TRUE, FALSE);
 617                         /* We assume that we detected properly that
 618                            there is a not purge attachment so we don't
 619                            need to check NULL */
 620                         set_selected (MODEST_ATTACHMENTS_VIEW (atts_view), MODEST_ATTACHMENT_VIEW (new_sel->data));
 621                 }
 622                 g_list_free (box_children);
 623                 return TRUE;
 624         }
 625
 626         if (event->keyval == GDK_Down) {
 627                 ModestAttachmentView *current_sel = NULL;
 628                 gboolean move_out = FALSE;
 629                 GList * box_children, *new_sel, *last_child = NULL;
 630
 631                 box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 632
 633                 if (box_children == NULL) {
 634                         move_out = TRUE;
 635                 } else {
 636                         last_child = g_list_last (box_children);
 637                         last_child = find_prev_or_next_not_purged (last_child, TRUE, TRUE);
 638                         if (priv->selected != NULL && last_child != NULL) {
 639                                 GList *last_selected = g_list_last (priv->selected);
 640                                 if (last_selected->data != last_child->data)
 641                                         current_sel = (ModestAttachmentView *) last_selected->data;
 642                                 else
 643                                         move_out = TRUE;
 644                         } else {
 645                                 move_out = TRUE;
 646                         }
 647                 }
 648
 649                 if (move_out) {
 650                         GtkWidget *toplevel = NULL;
 651                         /* move cursor outside */
 652                         toplevel = gtk_widget_get_toplevel (widget);
 653                         if (GTK_WIDGET_TOPLEVEL (toplevel) && GTK_IS_WINDOW (toplevel))
 654                                 g_signal_emit_by_name (toplevel, "move-focus", GTK_DIR_DOWN);
 655                         unselect_all (atts_view);
 656                 } else {
 657                         new_sel = g_list_find (box_children, (gpointer) current_sel);
 658                         new_sel = find_prev_or_next_not_purged (new_sel, FALSE, FALSE);
 659                         set_selected (MODEST_ATTACHMENTS_VIEW (atts_view), MODEST_ATTACHMENT_VIEW (new_sel->data));
 660                 }
 661                 g_list_free (box_children);
 662                 return TRUE;
 663         }
 664
 665         if (event->keyval == GDK_BackSpace) {
 666                 g_signal_emit (G_OBJECT (widget), signals[DELETE_SIGNAL], 0);
 667                 return TRUE;
 668         }
 669
 670         /* Activates selected item */
 671         if (g_list_length (priv->selected) == 1) {
 672                 ModestAttachmentView *att_view = (ModestAttachmentView *) priv->selected->data;
 673                 if ((event->keyval == GDK_Return)) {
 674                         TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 675                         if (TNY_IS_MIME_PART (mime_part)) {
 676                                 g_signal_emit (G_OBJECT (widget), signals[ACTIVATE_SIGNAL], 0, mime_part);
 677                                 g_object_unref (mime_part);
 678                         }
 679                         return TRUE;
 680                 }
 681         }
 682
 683         return FALSE;
 684 }
 685
 686
 687 static GtkWidget *
 688 get_att_view_at_coords (ModestAttachmentsView *atts_view,
 689                         gdouble x, gdouble y)
 690 {
 691         ModestAttachmentsViewPrivate *priv = NULL;
 692         GList *att_view_list, *node;
 693         GtkWidget *result = NULL;
 694
 695         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 696         att_view_list = gtk_container_get_children (GTK_CONTAINER (priv->box));
 697
 698         for (node = att_view_list; node != NULL; node = g_list_next (node)) {
 699                 GtkWidget *att_view = (GtkWidget *) node->data;
 700                 gint pos_x, pos_y, w, h, int_x, int_y;
 701                 gint widget_x, widget_y;
 702
 703                 gdk_window_get_origin (att_view->window, &widget_x, &widget_y);
 704
 705                 pos_x = widget_x;
 706                 pos_y = widget_y;
 707                 w = att_view->allocation.width;
 708                 h = att_view->allocation.height;
 709
 710                 int_x = (gint) x - GTK_WIDGET (atts_view)->allocation.x;
 711                 int_y = (gint) y - GTK_WIDGET (atts_view)->allocation.y;
 712
 713                 if ((x >= pos_x) && (x <= (pos_x + w)) && (y >= pos_y) && (y <= (pos_y + h))) {
 714                         result = att_view;
 715                         break;
 716                 }
 717         }
 718
 719         g_list_free (att_view_list);
 720         return result;
 721 }
 722
 723 static void
 724 unselect_all (ModestAttachmentsView *atts_view)
 725 {
 726         ModestAttachmentsViewPrivate *priv = NULL;
 727         GList *att_view_list, *node;
 728
 729         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 730         att_view_list = gtk_container_get_children (GTK_CONTAINER (priv->box));
 731
 732         for (node = att_view_list; node != NULL; node = g_list_next (node)) {
 733                 GtkWidget *att_view = (GtkWidget *) node->data;
 734
 735                 if (GTK_WIDGET_STATE (att_view) == GTK_STATE_SELECTED)
 736                         gtk_widget_set_state (att_view, GTK_STATE_NORMAL);
 737         }
 738
 739         g_list_free (priv->selected);
 740         priv->selected = NULL;
 741
 742         g_list_free (att_view_list);
 743 }
 744
 745 static void
 746 set_selected (ModestAttachmentsView *atts_view, ModestAttachmentView *att_view)
 747 {
 748         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 749         TnyMimePart *part;
 750
 751         unselect_all (atts_view);
 752         part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 753
 754         g_list_free (priv->selected);
 755         priv->selected = NULL;
 756         if (TNY_IS_MIME_PART (part) && !tny_mime_part_is_purged (part)) {
 757                 gtk_widget_set_state (GTK_WIDGET (att_view), GTK_STATE_SELECTED);
 758                 priv->selected = g_list_append (priv->selected, att_view);
 759         }
 760         if (part)
 761                 g_object_unref (part);
 762
 763         own_clipboard (atts_view);
 764 }
 765
 766 static void
 767 select_range (ModestAttachmentsView *atts_view, ModestAttachmentView *att1, ModestAttachmentView *att2)
 768 {
 769         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 770         GList *children = NULL;
 771         GList *node = NULL;
 772         gboolean selecting = FALSE;
 773         TnyMimePart *part;
 774
 775         unselect_all (atts_view);
 776
 777         if (att1 == att2) {
 778                 set_selected (atts_view, att1);
 779                 return;
 780         }
 781
 782         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 783         g_list_free (priv->selected);
 784         priv->selected = NULL;
 785
 786
 787         for (node = children; node != NULL; node = g_list_next (node)) {
 788                 if ((node->data == att1) || (node->data == att2)) {
 789                         part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (node->data));
 790                         if (!tny_mime_part_is_purged (part)) {
 791                                 gtk_widget_set_state (GTK_WIDGET (node->data), GTK_STATE_SELECTED);
 792                                 priv->selected = g_list_append (priv->selected, node->data);
 793                         }
 794                         g_object_unref (part);
 795                         selecting = !selecting;
 796                 } else if (selecting) {
 797                         part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (node->data));
 798                         if (!tny_mime_part_is_purged (part)) {
 799                                 gtk_widget_set_state (GTK_WIDGET (node->data), GTK_STATE_SELECTED);
 800                                 priv->selected = g_list_append (priv->selected, node->data);
 801                         }
 802                         g_object_unref (part);
 803                 }
 804
 805         }
 806         g_list_free (children);
 807
 808         own_clipboard (atts_view);
 809 }
 810
 811 static void clipboard_get (GtkClipboard *clipboard, GtkSelectionData *selection_data,
 812                            guint info, gpointer userdata)
 813 {
 814         ModestAttachmentsView *atts_view = (ModestAttachmentsView *) userdata;
 815         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 816
 817         if ((priv->selected != NULL)&&(priv->selected->next == NULL)) {
 818                 if (info == MODEST_ATTACHMENTS_VIEW_CLIPBOARD_TYPE_INDEX) {
 819                         /* MODEST_ATTACHMENT requested. As the content id is not filled in all the case, we'll
 820                          * use an internal index. This index is simply the index of the attachment in the vbox */
 821                         GList *box_children = NULL;
 822                         gint index;
 823                         box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 824                         index = g_list_index (box_children, priv->selected);
 825                         if (index >= 0) {
 826                                 gchar *index_str = g_strdup_printf("%d", index);
 827                                 gtk_selection_data_set_text (selection_data, index_str, -1);
 828                                 g_free (index_str);
 829                         }
 830                 }
 831         }
 832 }
 833
 834 TnyList *
 835 modest_attachments_view_get_selection (ModestAttachmentsView *atts_view)
 836 {
 837         ModestAttachmentsViewPrivate *priv;
 838         TnyList *selection;
 839         GList *node;
 840
 841         g_return_val_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view), NULL);
 842         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 843
 844         selection = tny_simple_list_new ();
 845         for (node = priv->selected; node != NULL; node = g_list_next (node)) {
 846                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
 847                 TnyMimePart *part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 848                 tny_list_append (selection, (GObject *) part);
 849                 g_object_unref (part);
 850         }
 851
 852         return selection;
 853 }
 854
 855 TnyList *
 856 modest_attachments_view_get_attachments (ModestAttachmentsView *atts_view)
 857 {
 858         ModestAttachmentsViewPrivate *priv;
 859         TnyList *att_list;
 860         GList *children, *node= NULL;
 861
 862         g_return_val_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view), NULL);
 863         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 864
 865         att_list = TNY_LIST (tny_simple_list_new ());
 866
 867         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 868         for (node = children; node != NULL; node = g_list_next (node)) {
 869                 GtkWidget *att_view = GTK_WIDGET (node->data);
 870                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 871                 tny_list_append (att_list, (GObject *) mime_part);
 872                 g_object_unref (mime_part);
 873         }
 874         g_list_free (children);
 875         return att_list;
 876
 877 }
 878
 879 void
 880 modest_attachments_view_select_all (ModestAttachmentsView *atts_view)
 881 {
 882         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 883         GList *children = NULL;
 884         GList *node = NULL;
 885
 886         unselect_all (atts_view);
 887
 888         if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_LINKS)
 889                 return;
 890
 891         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 892         g_list_free (priv->selected);
 893         priv->selected = NULL;
 894
 895         for (node = children; node != NULL; node = g_list_next (node)) {
 896                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
 897                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 898
 899                 /* Do not select purged attachments */
 900                 if (TNY_IS_MIME_PART (mime_part) && !tny_mime_part_is_purged (mime_part)) {
 901                         gtk_widget_set_state (GTK_WIDGET (node->data), GTK_STATE_SELECTED);
 902                         priv->selected = g_list_append (priv->selected, node->data);
 903                 }
 904                 g_object_unref (mime_part);
 905         }
 906         g_list_free (children);
 907
 908         own_clipboard (atts_view);
 909 }
 910
 911 gboolean
 912 modest_attachments_view_has_attachments (ModestAttachmentsView *atts_view)
 913 {
 914         ModestAttachmentsViewPrivate *priv;
 915         GList *children;
 916         gboolean result;
 917
 918         g_return_val_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view), FALSE);
 919         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 920
 921         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 922         result = (children != NULL);
 923         g_list_free (children);
 924
 925         return result;
 926 }
 927
 928 void
 929 modest_attachments_view_get_sizes (ModestAttachmentsView *attachments_view,
 930                                    gint *attachments_count,
 931                                    guint64 *attachments_size)
 932 {
 933         ModestAttachmentsViewPrivate *priv;
 934         GList *children, *node;
 935
 936         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (attachments_view));
 937         g_return_if_fail (attachments_count != NULL && attachments_size != NULL);
 938
 939         *attachments_count = 0;
 940         *attachments_size = 0;
 941
 942         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (attachments_view);
 943
 944         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 945         for (node = children; node != NULL; node = g_list_next (node)) {
 946                 GtkWidget *att_view = (GtkWidget *) node->data;
 947                 TnyMimePart *part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 948
 949                 if (!tny_mime_part_is_purged (part)) {
 950                         guint64 size;
 951                         (*attachments_count) ++;
 952                         size = modest_attachment_view_get_size (MODEST_ATTACHMENT_VIEW (att_view));
 953                         if (size == 0) {
 954                                 /* we do a random estimation of the size of an attachment */
 955                                 size = 32768;
 956                         }
 957                         *attachments_size += size;
 958                 }
 959                 g_object_unref (part);
 960         }
 961         g_list_free (children);
 962 }
 963
 964 static void
 965 dummy_clear_func (GtkClipboard *clipboard,
 966                   gpointer user_data_or_owner)
 967 {
 968         /* Do nothing */
 969 }
 970
 971 static void
 972 own_clipboard (ModestAttachmentsView *atts_view)
 973 {
 974         GtkTargetEntry targets[] = {
 975                 {MODEST_ATTACHMENTS_VIEW_CLIPBOARD_TYPE, 0, MODEST_ATTACHMENTS_VIEW_CLIPBOARD_TYPE_INDEX},
 976         };
 977
 978         gtk_clipboard_set_with_owner (gtk_widget_get_clipboard (GTK_WIDGET (atts_view), GDK_SELECTION_PRIMARY),
 979                                       targets, G_N_ELEMENTS (targets),
 980                                       clipboard_get, dummy_clear_func, G_OBJECT(atts_view));
 981 }
 982
 983 static gboolean
 984 focus_out_event (GtkWidget *widget, GdkEventFocus *event, ModestAttachmentsView *atts_view)
 985 {
 986         if (!gtk_widget_is_focus (widget))
 987                 unselect_all (atts_view);
 988
 989         return FALSE;
 990 }
 991
 992 static gboolean
 993 focus (GtkWidget *widget, GtkDirectionType direction, ModestAttachmentsView *atts_view)
 994 {
 995         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 996         GList *children = NULL;
 997         GtkWidget *toplevel = NULL;
 998
 999         toplevel = gtk_widget_get_toplevel (widget);
1000         if (!gtk_window_has_toplevel_focus (GTK_WINDOW (toplevel)))
1001                 return FALSE;
1002
1003         if (priv->style != MODEST_ATTACHMENTS_VIEW_STYLE_NO_FOCUS) {
1004                 children = gtk_container_get_children (GTK_CONTAINER (priv->box));
1005                 if (children != NULL) {
1006                         set_selected (atts_view, MODEST_ATTACHMENT_VIEW (children->data));
1007                 }
1008                 g_list_free (children);
1009         }
1010
1011         return FALSE;
1012 }
1013
1014 void
1015 modest_attachments_view_set_style (ModestAttachmentsView *self,
1016                                    ModestAttachmentsViewStyle style)
1017 {
1018         ModestAttachmentsViewPrivate *priv;
1019
1020         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (self));
1021         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (self);
1022
1023         if (priv->style != style) {
1024                 priv->style = style;
1025                 gtk_widget_queue_draw (GTK_WIDGET (self));
1026                 if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_SELECTABLE) {
1027                         GTK_WIDGET_SET_FLAGS (self, GTK_CAN_FOCUS);
1028                 } else {
1029                         GTK_WIDGET_UNSET_FLAGS (self, GTK_CAN_FOCUS);
1030                 }
1031
1032         }
1033 }
1034
1035 guint
1036 modest_attachments_view_get_num_attachments (ModestAttachmentsView *atts_view)
1037 {
1038         ModestAttachmentsViewPrivate *priv;
1039         GList *children;
1040         gint result;
1041
1042         g_return_val_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view), 0);
1043         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
1044
1045         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
1046         result = g_list_length (children);
1047         g_list_free (children);
1048
1049         return result;
1050 }