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 static void
 107 add_digest_attachments (ModestAttachmentsView *attachments_view, TnyMimePart *part)
 108 {
 109         TnyList *parts;
 110         TnyIterator *iter;
 111
 112         parts = TNY_LIST (tny_simple_list_new());
 113         tny_mime_part_get_parts (TNY_MIME_PART (part), parts);
 114
 115         for (iter  = tny_list_create_iterator(parts);
 116              !tny_iterator_is_done (iter);
 117              tny_iterator_next (iter)) {
 118                 TnyMimePart *cur_part = TNY_MIME_PART (tny_iterator_get_current (iter));
 119                 modest_attachments_view_add_attachment (attachments_view, cur_part, TRUE, 0);
 120                 g_object_unref (cur_part);
 121         }
 122         g_object_unref (iter);
 123         g_object_unref (parts);
 124
 125 }
 126
 127
 128 void
 129 modest_attachments_view_set_message (ModestAttachmentsView *attachments_view, TnyMsg *msg)
 130 {
 131         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (attachments_view);
 132         TnyList *parts;
 133         TnyIterator *iter;
 134         gchar *msg_content_type = NULL;
 135         TnyMimePart *part_to_check;
 136         gboolean body_found;
 137         gboolean is_alternate;
 138
 139         if (msg == priv->msg) return;
 140
 141         if (priv->msg)
 142                 g_object_unref (priv->msg);
 143         if (msg)
 144                 g_object_ref (G_OBJECT(msg));
 145
 146         priv->msg = msg;
 147
 148         g_list_free (priv->selected);
 149         priv->selected = NULL;
 150
 151         gtk_container_foreach (GTK_CONTAINER (priv->box), (GtkCallback) gtk_widget_destroy, NULL);
 152
 153         if (priv->msg == NULL) {
 154                 return;
 155         }
 156
 157         part_to_check = modest_tny_msg_get_attachments_parent (TNY_MSG (msg));
 158
 159         msg_content_type = modest_tny_mime_part_get_content_type (TNY_MIME_PART (part_to_check));
 160         is_alternate = !strcasecmp (msg_content_type, "multipart/alternative");
 161
 162         /* If the top mime part is a multipart/related, we don't show the attachments, as they're
 163          * embedded images in body */
 164         if ((msg_content_type != NULL) && !strcasecmp (msg_content_type, "multipart/related")) {
 165                 gchar *header_content_type;
 166                 gboolean application_multipart = FALSE;
 167
 168                 g_free (msg_content_type);
 169
 170                 header_content_type = modest_tny_mime_part_get_headers_content_type (TNY_MIME_PART (part_to_check));
 171
 172                 if ((header_content_type != NULL) &&
 173                     !strstr (header_content_type, "application/")) {
 174                         application_multipart = TRUE;
 175                 }
 176                 g_free (header_content_type);
 177
 178                 if (application_multipart) {
 179                         gtk_widget_queue_draw (GTK_WIDGET (attachments_view));
 180                         g_object_unref (part_to_check);
 181                         return;
 182                 }
 183         } else {
 184                 gboolean direct_attach;
 185
 186                 direct_attach = (!g_str_has_prefix (msg_content_type, "message/rfc822") &&
 187                                  !g_str_has_prefix (msg_content_type, "multipart") &&
 188                                  !g_str_has_prefix (msg_content_type, "text/"));
 189
 190                 g_free (msg_content_type);
 191
 192                 if (direct_attach) {
 193                         modest_attachments_view_add_attachment (attachments_view, TNY_MIME_PART (part_to_check), TRUE, 0);
 194                         gtk_widget_queue_draw (GTK_WIDGET (attachments_view));
 195                         g_object_unref (part_to_check);
 196                         return;
 197                 }
 198         }
 199
 200         parts = TNY_LIST (tny_simple_list_new ());
 201         tny_mime_part_get_parts (TNY_MIME_PART (part_to_check), parts);
 202         iter = tny_list_create_iterator (parts);
 203
 204         body_found = FALSE;
 205         while (!tny_iterator_is_done (iter)) {
 206                 TnyMimePart *part;
 207                 gchar *content_type;
 208
 209                 part = TNY_MIME_PART (tny_iterator_get_current (iter));
 210
 211                 if (part && (modest_tny_mime_part_is_attachment_for_modest (part))) {
 212                         modest_attachments_view_add_attachment (attachments_view, part, TRUE, 0);
 213
 214                 } else if (part && !is_alternate) {
 215                         content_type = g_ascii_strdown (tny_mime_part_get_content_type (part), -1);
 216                         g_strstrip (content_type);
 217
 218                         if (g_str_has_prefix (content_type, "multipart/digest")) {
 219                                 add_digest_attachments (attachments_view, part);
 220                         } else if (body_found && g_str_has_prefix (content_type, "text/")) {
 221                                    modest_attachments_view_add_attachment (attachments_view, part, TRUE, 0);
 222                         } else if (g_str_has_prefix (content_type, "multipart/") ||
 223                                    g_str_has_prefix (content_type, "text/")) {
 224                                 body_found = TRUE;
 225                         }
 226                 }
 227
 228
 229                 if (part)
 230                         g_object_unref (part);
 231
 232                 tny_iterator_next (iter);
 233         }
 234         g_object_unref (iter);
 235         g_object_unref (parts);
 236         g_object_unref (part_to_check);
 237
 238
 239         gtk_widget_queue_draw (GTK_WIDGET (attachments_view));
 240
 241 }
 242
 243 void
 244 modest_attachments_view_add_attachment (ModestAttachmentsView *attachments_view, TnyMimePart *part,
 245                                         gboolean detect_size, guint64 size)
 246 {
 247         GtkWidget *att_view = NULL;
 248         ModestAttachmentsViewPrivate *priv = NULL;
 249
 250         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (attachments_view));
 251         g_return_if_fail (TNY_IS_MIME_PART (part));
 252
 253         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (attachments_view);
 254
 255         att_view = modest_attachment_view_new (part, detect_size);
 256         if (!detect_size)
 257                 modest_attachment_view_set_size (MODEST_ATTACHMENT_VIEW (att_view), size);
 258         gtk_box_pack_start (GTK_BOX (priv->box), att_view, FALSE, FALSE, 0);
 259         gtk_widget_show_all (att_view);
 260         gtk_widget_queue_resize (GTK_WIDGET (attachments_view));
 261 }
 262
 263 void
 264 modest_attachments_view_remove_attachment (ModestAttachmentsView *atts_view, TnyMimePart *mime_part)
 265 {
 266         ModestAttachmentsViewPrivate *priv = NULL;
 267         GList *box_children = NULL, *node = NULL;
 268         ModestAttachmentView *found_att_view = NULL;
 269
 270         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view));
 271         g_return_if_fail (TNY_IS_MIME_PART (mime_part));
 272
 273         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 274         box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 275
 276         for (node = box_children; node != NULL; node = g_list_next (node)) {
 277                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
 278                 TnyMimePart *cur_mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 279
 280                 if (mime_part == cur_mime_part)
 281                         found_att_view = att_view;
 282
 283                 g_object_unref (cur_mime_part);
 284
 285                 if (found_att_view != NULL)
 286                         break;
 287         }
 288
 289         if (found_att_view) {
 290                 GList *node = NULL;
 291                 GtkWidget *next_widget = NULL;
 292                 GList *box_children = NULL;
 293
 294                 box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 295                 node = g_list_find (box_children, found_att_view);
 296                 if (node && node->next)
 297                         next_widget = node->next->data;
 298
 299                 g_list_free (box_children);
 300                 gtk_widget_destroy (GTK_WIDGET (found_att_view));
 301
 302                 node = g_list_find (priv->selected, found_att_view);
 303                 if (node) {
 304                         priv->selected = g_list_delete_link (priv->selected, node);
 305                         if ((priv->selected == NULL) && (next_widget != NULL))
 306                                 set_selected (MODEST_ATTACHMENTS_VIEW (atts_view),
 307                                               MODEST_ATTACHMENT_VIEW (next_widget));
 308                 }
 309                 own_clipboard (atts_view);
 310
 311         }
 312
 313         gtk_widget_queue_resize (GTK_WIDGET (atts_view));
 314 }
 315
 316 void
 317 modest_attachments_view_remove_attachment_by_id (ModestAttachmentsView *atts_view, const gchar *att_id)
 318 {
 319         ModestAttachmentsViewPrivate *priv = NULL;
 320         GList *box_children = NULL, *node = NULL;
 321
 322         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view));
 323         g_return_if_fail (att_id != NULL);
 324
 325         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 326         box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 327
 328         for (node = box_children; node != NULL; node = g_list_next (node)) {
 329                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
 330                 TnyMimePart *cur_mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 331                 const gchar *mime_part_id = NULL;
 332
 333                 mime_part_id = tny_mime_part_get_content_id (cur_mime_part);
 334                 if ((mime_part_id != NULL) && (strcmp (mime_part_id, att_id) == 0)) {
 335                         gtk_widget_destroy (GTK_WIDGET (att_view));
 336                         priv->selected = g_list_remove (priv->selected, att_view);
 337                 }
 338
 339                 g_object_unref (cur_mime_part);
 340         }
 341
 342         own_clipboard (atts_view);
 343
 344         gtk_widget_queue_resize (GTK_WIDGET (atts_view));
 345 }
 346
 347 static void
 348 modest_attachments_view_instance_init (GTypeInstance *instance, gpointer g_class)
 349 {
 350         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (instance);
 351
 352         priv->msg = NULL;
 353         priv->box = gtk_vbox_new (FALSE, 0);
 354         priv->rubber_start = NULL;
 355         priv->press_att_view = NULL;
 356         priv->selected = NULL;
 357         priv->style = MODEST_ATTACHMENTS_VIEW_STYLE_SELECTABLE;
 358
 359         gtk_container_add (GTK_CONTAINER (instance), priv->box);
 360         gtk_event_box_set_above_child (GTK_EVENT_BOX (instance), TRUE);
 361
 362         g_signal_connect (G_OBJECT (instance), "button-press-event", G_CALLBACK (button_press_event), instance);
 363         g_signal_connect (G_OBJECT (instance), "button-release-event", G_CALLBACK (button_release_event), instance);
 364         g_signal_connect (G_OBJECT (instance), "motion-notify-event", G_CALLBACK (motion_notify_event), instance);
 365         g_signal_connect (G_OBJECT (instance), "key-press-event", G_CALLBACK (key_press_event), instance);
 366         g_signal_connect (G_OBJECT (instance), "focus-out-event", G_CALLBACK (focus_out_event), instance);
 367         g_signal_connect (G_OBJECT (instance), "focus", G_CALLBACK (focus), instance);
 368
 369         GTK_WIDGET_SET_FLAGS (instance, GTK_CAN_FOCUS);
 370
 371         return;
 372 }
 373
 374 static void
 375 modest_attachments_view_finalize (GObject *object)
 376 {
 377         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (object);
 378
 379         if (priv->msg) {
 380                 g_object_unref (priv->msg);
 381                 priv->msg = NULL;
 382         }
 383
 384         (*parent_class->finalize) (object);
 385
 386         return;
 387 }
 388
 389 static void
 390 modest_attachments_view_class_init (ModestAttachmentsViewClass *klass)
 391 {
 392         GObjectClass *object_class;
 393         GtkWidgetClass *widget_class;
 394
 395         parent_class = g_type_class_peek_parent (klass);
 396         object_class = (GObjectClass*) klass;
 397         widget_class = GTK_WIDGET_CLASS (klass);
 398
 399         object_class->finalize = modest_attachments_view_finalize;
 400
 401         klass->activate = NULL;
 402
 403         g_type_class_add_private (object_class, sizeof (ModestAttachmentsViewPrivate));
 404
 405         signals[ACTIVATE_SIGNAL] =
 406                 g_signal_new ("activate",
 407                               G_TYPE_FROM_CLASS (object_class),
 408                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 409                               G_STRUCT_OFFSET(ModestAttachmentsViewClass, activate),
 410                               NULL, NULL,
 411                               g_cclosure_marshal_VOID__OBJECT,
 412                               G_TYPE_NONE, 1, G_TYPE_OBJECT);
 413
 414         signals[DELETE_SIGNAL] =
 415                 g_signal_new ("delete",
 416                               G_TYPE_FROM_CLASS (object_class),
 417                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
 418                               G_STRUCT_OFFSET(ModestAttachmentsViewClass, delete),
 419                               NULL, NULL,
 420                               g_cclosure_marshal_VOID__VOID,
 421                               G_TYPE_NONE, 0);
 422
 423         return;
 424 }
 425
 426 GType
 427 modest_attachments_view_get_type (void)
 428 {
 429         static GType type = 0;
 430
 431         if (G_UNLIKELY(type == 0))
 432         {
 433                 static const GTypeInfo info =
 434                 {
 435                   sizeof (ModestAttachmentsViewClass),
 436                   NULL,   /* base_init */
 437                   NULL,   /* base_finalize */
 438                   (GClassInitFunc) modest_attachments_view_class_init,   /* class_init */
 439                   NULL,   /* class_finalize */
 440                   NULL,   /* class_data */
 441                   sizeof (ModestAttachmentsView),
 442                   0,      /* n_preallocs */
 443                   modest_attachments_view_instance_init    /* instance_init */
 444                 };
 445
 446                 type = g_type_register_static (GTK_TYPE_EVENT_BOX,
 447                         "ModestAttachmentsView",
 448                         &info, 0);
 449
 450         }
 451
 452         return type;
 453 }
 454
 455 /* buttons signal events */
 456 static gboolean
 457 button_press_event (GtkWidget *widget,
 458                     GdkEventButton *event,
 459                     ModestAttachmentsView *atts_view)
 460 {
 461         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 462         if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_SELECTABLE &&
 463             !GTK_WIDGET_HAS_FOCUS (widget))
 464                 gtk_widget_grab_focus (widget);
 465
 466         if (event->button == 1 && event->type == GDK_BUTTON_PRESS) {
 467                 GtkWidget *att_view = NULL;
 468
 469                 att_view = get_att_view_at_coords (MODEST_ATTACHMENTS_VIEW (widget),
 470                                                    (gint) event->x_root, (gint) event->y_root);
 471
 472                 if (att_view != NULL) {
 473                         if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_NO_FOCUS) {
 474                                 unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
 475                         } else if ((priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_LINKS) ||
 476                             (GTK_WIDGET_STATE (att_view) == GTK_STATE_SELECTED && (g_list_length (priv->selected) < 2))) {
 477                                 priv->press_att_view = att_view;
 478                                 set_selected (MODEST_ATTACHMENTS_VIEW (widget), MODEST_ATTACHMENT_VIEW (att_view));
 479                                 gtk_grab_add (widget);
 480                         } else {
 481                                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 482
 483                                 /* Do not select purged attachments */
 484                                 if (TNY_IS_MIME_PART (mime_part) && !tny_mime_part_is_purged (mime_part)) {
 485                                         set_selected (MODEST_ATTACHMENTS_VIEW (widget), MODEST_ATTACHMENT_VIEW (att_view));
 486                                         priv->rubber_start = att_view;
 487                                         gtk_grab_add (widget);
 488                                 }
 489                                 g_object_unref (mime_part);
 490                         }
 491                 }
 492         }
 493         return TRUE;
 494
 495 }
 496
 497 static gboolean
 498 button_release_event (GtkWidget *widget,
 499                       GdkEventButton *event,
 500                       ModestAttachmentsView *atts_view)
 501 {
 502         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 503         if (widget == gtk_grab_get_current ()) {
 504                 GtkWidget *att_view = NULL;
 505
 506                 att_view = get_att_view_at_coords (MODEST_ATTACHMENTS_VIEW (widget),
 507                                                    (gint) event->x_root, (gint) event->y_root);
 508
 509                 if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_LINKS) {
 510                         unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
 511                         if (att_view == priv->press_att_view) {
 512                                 TnyMimePart *mime_part;
 513                                 mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 514                                 g_signal_emit (G_OBJECT (widget), signals[ACTIVATE_SIGNAL], 0, mime_part);
 515                                 g_object_unref (mime_part);
 516                         }
 517                         priv->press_att_view = NULL;
 518                 } else {
 519
 520                         if (att_view != NULL) {
 521                                 unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
 522                                 select_range (MODEST_ATTACHMENTS_VIEW (widget),
 523                                               MODEST_ATTACHMENT_VIEW (priv->rubber_start),
 524                                               MODEST_ATTACHMENT_VIEW (att_view));
 525                         }
 526                         priv->rubber_start = NULL;
 527                 }
 528                 gtk_grab_remove (widget);
 529         }
 530         return TRUE;
 531 }
 532
 533 static gboolean
 534 motion_notify_event (GtkWidget *widget,
 535                      GdkEventMotion *event,
 536                      ModestAttachmentsView *atts_view)
 537 {
 538         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 539         if (gtk_grab_get_current () == widget) {
 540                 GtkWidget *att_view = NULL;
 541
 542                 att_view = get_att_view_at_coords (MODEST_ATTACHMENTS_VIEW (widget),
 543                                                    (gint) event->x_root, (gint) event->y_root);
 544                 if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_LINKS) {
 545                         if (att_view == priv->press_att_view) {
 546                                 if (priv->selected == NULL)
 547                                 set_selected (MODEST_ATTACHMENTS_VIEW (widget), MODEST_ATTACHMENT_VIEW (att_view));
 548                         } else {
 549                                 if (priv->selected) {
 550                                         unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
 551                                 }
 552                         }
 553                 } else {
 554
 555                         if (att_view != NULL) {
 556                                 unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
 557                                 select_range (MODEST_ATTACHMENTS_VIEW (widget),
 558                                               MODEST_ATTACHMENT_VIEW (priv->rubber_start),
 559                                               MODEST_ATTACHMENT_VIEW (att_view));
 560                         }
 561                 }
 562                 gdk_event_request_motions (event);
 563         }
 564         return TRUE;
 565 }
 566
 567 static GList*
 568 find_prev_or_next_not_purged (GList *list, gboolean prev, gboolean include_this)
 569 {
 570         GList *tmp = NULL;
 571         gboolean is_valid;
 572
 573         if (!include_this) {
 574                 if (prev) {
 575                         tmp = g_list_previous (list);
 576                 } else {
 577                         tmp = g_list_next (list);
 578                 }
 579         } else {
 580                 tmp = list;
 581         }
 582
 583         if (!tmp)
 584                 return NULL;
 585
 586         do {
 587                 ModestAttachmentView *att_view = (ModestAttachmentView *) tmp->data;
 588                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 589
 590                 /* Do not select purged attachments */
 591                 if (TNY_IS_MIME_PART (mime_part) && !tny_mime_part_is_purged (mime_part)) {
 592                         is_valid = TRUE;
 593                 } else {
 594                         if (prev)
 595                                 tmp = g_list_previous (tmp);
 596                         else
 597                                 tmp = g_list_next (tmp);
 598                         is_valid = FALSE;
 599                 }
 600                 g_object_unref (mime_part);
 601         } while (!is_valid && tmp);
 602
 603         return tmp;
 604 }
 605
 606
 607 static gboolean
 608 key_press_event (GtkWidget *widget,
 609                  GdkEventKey *event,
 610                  ModestAttachmentsView *atts_view)
 611 {
 612         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 613
 614         if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_NO_FOCUS) {
 615                 unselect_all (atts_view);
 616                 return FALSE;
 617         }
 618
 619         /* If grabbed (for example rubber banding), escape leaves the rubberbanding mode */
 620         if (gtk_grab_get_current () == widget) {
 621                 if (event->keyval == GDK_Escape) {
 622                         set_selected (MODEST_ATTACHMENTS_VIEW (widget),
 623                                       MODEST_ATTACHMENT_VIEW (priv->rubber_start));
 624                         priv->rubber_start = NULL;
 625                         gtk_grab_remove (widget);
 626                         return TRUE;
 627                 }
 628                 return FALSE;
 629         }
 630
 631         if (event->keyval == GDK_Up) {
 632                 ModestAttachmentView *current_sel = NULL;
 633                 gboolean move_out = FALSE;
 634                 GList * box_children, *new_sel, *first_child;
 635
 636                 box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 637                 if (box_children == NULL) {
 638                         move_out = TRUE;
 639                 } else {
 640                         first_child = box_children;
 641                         first_child = find_prev_or_next_not_purged (box_children, FALSE, TRUE);
 642                         if (priv->selected != NULL && first_child != NULL) {
 643                                 if (priv->selected->data != first_child->data)
 644                                         current_sel = (ModestAttachmentView *) priv->selected->data;
 645                                 else
 646                                         move_out = TRUE;
 647                         } else {
 648                                 move_out = TRUE;
 649                         }
 650                 }
 651
 652                 if (move_out) {
 653                         GtkWidget *toplevel = NULL;
 654                         /* move cursor outside */
 655                         toplevel = gtk_widget_get_toplevel (widget);
 656                         if (GTK_WIDGET_TOPLEVEL (toplevel) && GTK_IS_WINDOW (toplevel))
 657                                 g_signal_emit_by_name (toplevel, "move-focus", GTK_DIR_UP);
 658                         unselect_all (atts_view);
 659                 } else {
 660                         new_sel = g_list_find (box_children, (gpointer) current_sel);
 661                         new_sel = find_prev_or_next_not_purged (new_sel, TRUE, FALSE);
 662                         /* We assume that we detected properly that
 663                            there is a not purge attachment so we don't
 664                            need to check NULL */
 665                         set_selected (MODEST_ATTACHMENTS_VIEW (atts_view), MODEST_ATTACHMENT_VIEW (new_sel->data));
 666                 }
 667                 g_list_free (box_children);
 668                 return TRUE;
 669         }
 670
 671         if (event->keyval == GDK_Down) {
 672                 ModestAttachmentView *current_sel = NULL;
 673                 gboolean move_out = FALSE;
 674                 GList * box_children, *new_sel, *last_child = NULL;
 675
 676                 box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 677
 678                 if (box_children == NULL) {
 679                         move_out = TRUE;
 680                 } else {
 681                         last_child = g_list_last (box_children);
 682                         last_child = find_prev_or_next_not_purged (last_child, TRUE, TRUE);
 683                         if (priv->selected != NULL && last_child != NULL) {
 684                                 GList *last_selected = g_list_last (priv->selected);
 685                                 if (last_selected->data != last_child->data)
 686                                         current_sel = (ModestAttachmentView *) last_selected->data;
 687                                 else
 688                                         move_out = TRUE;
 689                         } else {
 690                                 move_out = TRUE;
 691                         }
 692                 }
 693
 694                 if (move_out) {
 695                         GtkWidget *toplevel = NULL;
 696                         /* move cursor outside */
 697                         toplevel = gtk_widget_get_toplevel (widget);
 698                         if (GTK_WIDGET_TOPLEVEL (toplevel) && GTK_IS_WINDOW (toplevel))
 699                                 g_signal_emit_by_name (toplevel, "move-focus", GTK_DIR_DOWN);
 700                         unselect_all (atts_view);
 701                 } else {
 702                         new_sel = g_list_find (box_children, (gpointer) current_sel);
 703                         new_sel = find_prev_or_next_not_purged (new_sel, FALSE, FALSE);
 704                         set_selected (MODEST_ATTACHMENTS_VIEW (atts_view), MODEST_ATTACHMENT_VIEW (new_sel->data));
 705                 }
 706                 g_list_free (box_children);
 707                 return TRUE;
 708         }
 709
 710         if (event->keyval == GDK_BackSpace) {
 711                 g_signal_emit (G_OBJECT (widget), signals[DELETE_SIGNAL], 0);
 712                 return TRUE;
 713         }
 714
 715         /* Activates selected item */
 716         if (g_list_length (priv->selected) == 1) {
 717                 ModestAttachmentView *att_view = (ModestAttachmentView *) priv->selected->data;
 718                 if ((event->keyval == GDK_Return)) {
 719                         TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 720                         if (TNY_IS_MIME_PART (mime_part)) {
 721                                 g_signal_emit (G_OBJECT (widget), signals[ACTIVATE_SIGNAL], 0, mime_part);
 722                                 g_object_unref (mime_part);
 723                         }
 724                         return TRUE;
 725                 }
 726         }
 727
 728         return FALSE;
 729 }
 730
 731
 732 static GtkWidget *
 733 get_att_view_at_coords (ModestAttachmentsView *atts_view,
 734                         gdouble x, gdouble y)
 735 {
 736         ModestAttachmentsViewPrivate *priv = NULL;
 737         GList *att_view_list, *node;
 738         GtkWidget *result = NULL;
 739
 740         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 741         att_view_list = gtk_container_get_children (GTK_CONTAINER (priv->box));
 742
 743         for (node = att_view_list; node != NULL; node = g_list_next (node)) {
 744                 GtkWidget *att_view = (GtkWidget *) node->data;
 745                 gint pos_x, pos_y, w, h, int_x, int_y;
 746                 gint widget_x, widget_y;
 747
 748                 gdk_window_get_origin (att_view->window, &widget_x, &widget_y);
 749
 750                 pos_x = widget_x;
 751                 pos_y = widget_y;
 752                 w = att_view->allocation.width;
 753                 h = att_view->allocation.height;
 754
 755                 int_x = (gint) x - GTK_WIDGET (atts_view)->allocation.x;
 756                 int_y = (gint) y - GTK_WIDGET (atts_view)->allocation.y;
 757
 758                 if ((x >= pos_x) && (x <= (pos_x + w)) && (y >= pos_y) && (y <= (pos_y + h))) {
 759                         result = att_view;
 760                         break;
 761                 }
 762         }
 763
 764         g_list_free (att_view_list);
 765         return result;
 766 }
 767
 768 static void
 769 unselect_all (ModestAttachmentsView *atts_view)
 770 {
 771         ModestAttachmentsViewPrivate *priv = NULL;
 772         GList *att_view_list, *node;
 773
 774         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 775         att_view_list = gtk_container_get_children (GTK_CONTAINER (priv->box));
 776
 777         for (node = att_view_list; node != NULL; node = g_list_next (node)) {
 778                 GtkWidget *att_view = (GtkWidget *) node->data;
 779
 780                 if (GTK_WIDGET_STATE (att_view) == GTK_STATE_SELECTED)
 781                         gtk_widget_set_state (att_view, GTK_STATE_NORMAL);
 782         }
 783
 784         g_list_free (priv->selected);
 785         priv->selected = NULL;
 786
 787         g_list_free (att_view_list);
 788 }
 789
 790 static void
 791 set_selected (ModestAttachmentsView *atts_view, ModestAttachmentView *att_view)
 792 {
 793         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 794         TnyMimePart *part;
 795
 796         unselect_all (atts_view);
 797         part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 798
 799         g_list_free (priv->selected);
 800         priv->selected = NULL;
 801         if (TNY_IS_MIME_PART (part) && !tny_mime_part_is_purged (part)) {
 802                 gtk_widget_set_state (GTK_WIDGET (att_view), GTK_STATE_SELECTED);
 803                 priv->selected = g_list_append (priv->selected, att_view);
 804         }
 805         if (part)
 806                 g_object_unref (part);
 807
 808         own_clipboard (atts_view);
 809 }
 810
 811 static void
 812 select_range (ModestAttachmentsView *atts_view, ModestAttachmentView *att1, ModestAttachmentView *att2)
 813 {
 814         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 815         GList *children = NULL;
 816         GList *node = NULL;
 817         gboolean selecting = FALSE;
 818         TnyMimePart *part;
 819
 820         unselect_all (atts_view);
 821
 822         if (att1 == att2) {
 823                 set_selected (atts_view, att1);
 824                 return;
 825         }
 826
 827         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 828         g_list_free (priv->selected);
 829         priv->selected = NULL;
 830
 831
 832         for (node = children; node != NULL; node = g_list_next (node)) {
 833                 if ((node->data == att1) || (node->data == att2)) {
 834                         part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (node->data));
 835                         if (!tny_mime_part_is_purged (part)) {
 836                                 gtk_widget_set_state (GTK_WIDGET (node->data), GTK_STATE_SELECTED);
 837                                 priv->selected = g_list_append (priv->selected, node->data);
 838                         }
 839                         g_object_unref (part);
 840                         selecting = !selecting;
 841                 } else if (selecting) {
 842                         part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (node->data));
 843                         if (!tny_mime_part_is_purged (part)) {
 844                                 gtk_widget_set_state (GTK_WIDGET (node->data), GTK_STATE_SELECTED);
 845                                 priv->selected = g_list_append (priv->selected, node->data);
 846                         }
 847                         g_object_unref (part);
 848                 }
 849
 850         }
 851         g_list_free (children);
 852
 853         own_clipboard (atts_view);
 854 }
 855
 856 static void clipboard_get (GtkClipboard *clipboard, GtkSelectionData *selection_data,
 857                            guint info, gpointer userdata)
 858 {
 859         ModestAttachmentsView *atts_view = (ModestAttachmentsView *) userdata;
 860         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 861
 862         if ((priv->selected != NULL)&&(priv->selected->next == NULL)) {
 863                 if (info == MODEST_ATTACHMENTS_VIEW_CLIPBOARD_TYPE_INDEX) {
 864                         /* MODEST_ATTACHMENT requested. As the content id is not filled in all the case, we'll
 865                          * use an internal index. This index is simply the index of the attachment in the vbox */
 866                         GList *box_children = NULL;
 867                         gint index;
 868                         box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 869                         index = g_list_index (box_children, priv->selected);
 870                         if (index >= 0) {
 871                                 gchar *index_str = g_strdup_printf("%d", index);
 872                                 gtk_selection_data_set_text (selection_data, index_str, -1);
 873                                 g_free (index_str);
 874                         }
 875                 }
 876         }
 877 }
 878
 879 TnyList *
 880 modest_attachments_view_get_selection (ModestAttachmentsView *atts_view)
 881 {
 882         ModestAttachmentsViewPrivate *priv;
 883         TnyList *selection;
 884         GList *node;
 885
 886         g_return_val_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view), NULL);
 887         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 888
 889         selection = tny_simple_list_new ();
 890         for (node = priv->selected; node != NULL; node = g_list_next (node)) {
 891                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
 892                 TnyMimePart *part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 893                 tny_list_append (selection, (GObject *) part);
 894                 g_object_unref (part);
 895         }
 896
 897         return selection;
 898 }
 899
 900 TnyList *
 901 modest_attachments_view_get_attachments (ModestAttachmentsView *atts_view)
 902 {
 903         ModestAttachmentsViewPrivate *priv;
 904         TnyList *att_list;
 905         GList *children, *node= NULL;
 906
 907         g_return_val_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view), NULL);
 908         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 909
 910         att_list = TNY_LIST (tny_simple_list_new ());
 911
 912         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 913         for (node = children; node != NULL; node = g_list_next (node)) {
 914                 GtkWidget *att_view = GTK_WIDGET (node->data);
 915                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 916                 tny_list_append (att_list, (GObject *) mime_part);
 917                 g_object_unref (mime_part);
 918         }
 919         g_list_free (children);
 920         return att_list;
 921
 922 }
 923
 924 void
 925 modest_attachments_view_select_all (ModestAttachmentsView *atts_view)
 926 {
 927         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 928         GList *children = NULL;
 929         GList *node = NULL;
 930
 931         unselect_all (atts_view);
 932
 933         if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_LINKS)
 934                 return;
 935
 936         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 937         g_list_free (priv->selected);
 938         priv->selected = NULL;
 939
 940         for (node = children; node != NULL; node = g_list_next (node)) {
 941                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
 942                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 943
 944                 /* Do not select purged attachments */
 945                 if (TNY_IS_MIME_PART (mime_part) && !tny_mime_part_is_purged (mime_part)) {
 946                         gtk_widget_set_state (GTK_WIDGET (node->data), GTK_STATE_SELECTED);
 947                         priv->selected = g_list_append (priv->selected, node->data);
 948                 }
 949                 g_object_unref (mime_part);
 950         }
 951         g_list_free (children);
 952
 953         own_clipboard (atts_view);
 954 }
 955
 956 gboolean
 957 modest_attachments_view_has_attachments (ModestAttachmentsView *atts_view)
 958 {
 959         ModestAttachmentsViewPrivate *priv;
 960         GList *children;
 961         gboolean result;
 962
 963         g_return_val_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view), FALSE);
 964         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
 965
 966         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 967         result = (children != NULL);
 968         g_list_free (children);
 969
 970         return result;
 971 }
 972
 973 void
 974 modest_attachments_view_get_sizes (ModestAttachmentsView *attachments_view,
 975                                    gint *attachments_count,
 976                                    guint64 *attachments_size)
 977 {
 978         ModestAttachmentsViewPrivate *priv;
 979         GList *children, *node;
 980
 981         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (attachments_view));
 982         g_return_if_fail (attachments_count != NULL && attachments_size != NULL);
 983
 984         *attachments_count = 0;
 985         *attachments_size = 0;
 986
 987         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (attachments_view);
 988
 989         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
 990         for (node = children; node != NULL; node = g_list_next (node)) {
 991                 GtkWidget *att_view = (GtkWidget *) node->data;
 992                 TnyMimePart *part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
 993
 994                 if (!tny_mime_part_is_purged (part)) {
 995                         guint64 size;
 996                         (*attachments_count) ++;
 997                         size = modest_attachment_view_get_size (MODEST_ATTACHMENT_VIEW (att_view));
 998                         if (size == 0) {
 999                                 /* we do a random estimation of the size of an attachment */
1000                                 size = 32768;
1001                         }
1002                         *attachments_size += size;
1003                 }
1004                 g_object_unref (part);
1005         }
1006         g_list_free (children);
1007 }
1008
1009 static void
1010 dummy_clear_func (GtkClipboard *clipboard,
1011                   gpointer user_data_or_owner)
1012 {
1013         /* Do nothing */
1014 }
1015
1016 static void
1017 own_clipboard (ModestAttachmentsView *atts_view)
1018 {
1019         GtkTargetEntry targets[] = {
1020                 {MODEST_ATTACHMENTS_VIEW_CLIPBOARD_TYPE, 0, MODEST_ATTACHMENTS_VIEW_CLIPBOARD_TYPE_INDEX},
1021         };
1022
1023         gtk_clipboard_set_with_owner (gtk_widget_get_clipboard (GTK_WIDGET (atts_view), GDK_SELECTION_PRIMARY),
1024                                       targets, G_N_ELEMENTS (targets),
1025                                       clipboard_get, dummy_clear_func, G_OBJECT(atts_view));
1026 }
1027
1028 static gboolean
1029 focus_out_event (GtkWidget *widget, GdkEventFocus *event, ModestAttachmentsView *atts_view)
1030 {
1031         if (!gtk_widget_is_focus (widget))
1032                 unselect_all (atts_view);
1033
1034         return FALSE;
1035 }
1036
1037 static gboolean
1038 focus (GtkWidget *widget, GtkDirectionType direction, ModestAttachmentsView *atts_view)
1039 {
1040         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
1041         GList *children = NULL;
1042         GtkWidget *toplevel = NULL;
1043
1044         toplevel = gtk_widget_get_toplevel (widget);
1045         if (!gtk_window_has_toplevel_focus (GTK_WINDOW (toplevel)))
1046                 return FALSE;
1047
1048         if (priv->style != MODEST_ATTACHMENTS_VIEW_STYLE_NO_FOCUS) {
1049                 children = gtk_container_get_children (GTK_CONTAINER (priv->box));
1050                 if (children != NULL) {
1051                         set_selected (atts_view, MODEST_ATTACHMENT_VIEW (children->data));
1052                 }
1053                 g_list_free (children);
1054         }
1055
1056         return FALSE;
1057 }
1058
1059 void
1060 modest_attachments_view_set_style (ModestAttachmentsView *self,
1061                                    ModestAttachmentsViewStyle style)
1062 {
1063         ModestAttachmentsViewPrivate *priv;
1064
1065         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (self));
1066         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (self);
1067
1068         if (priv->style != style) {
1069                 priv->style = style;
1070                 gtk_widget_queue_draw (GTK_WIDGET (self));
1071                 if (priv->style == MODEST_ATTACHMENTS_VIEW_STYLE_SELECTABLE) {
1072                         GTK_WIDGET_SET_FLAGS (self, GTK_CAN_FOCUS);
1073                 } else {
1074                         GTK_WIDGET_UNSET_FLAGS (self, GTK_CAN_FOCUS);
1075                 }
1076
1077         }
1078 }
1079
1080 guint
1081 modest_attachments_view_get_num_attachments (ModestAttachmentsView *atts_view)
1082 {
1083         ModestAttachmentsViewPrivate *priv;
1084         GList *children;
1085         gint result;
1086
1087         g_return_val_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view), 0);
1088         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
1089
1090         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
1091         result = g_list_length (children);
1092         g_list_free (children);
1093
1094         return result;
1095 }