Show other bodies in attachment as other messages.
[modest] / src / widgets / modest-attachment-view.c
1 /* Copyright (c) 2007, 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 #ifdef HAVE_CONFIG_H
31 #include <config.h>
32 #endif /*HAVE_CONFIG_H*/
33
34 #include <glib/gi18n.h>
35
36 #include <string.h>
37 #include <modest-attachment-view.h>
38 #include <modest-platform.h>
39 #include <modest-text-utils.h>
40 #include <modest-tny-mime-part.h>
41 #include <tny-msg.h>
42 #include <modest-mail-operation.h>
43 #include <modest-mail-operation-queue.h>
44 #include <modest-runtime.h>
45 #include <modest-count-stream.h>
46 #include <modest-ui-constants.h>
47
48 #define GET_SIZE_BUFFER_SIZE 128
49
50 static GObjectClass *parent_class = NULL;
51
52 typedef struct _ModestAttachmentViewPrivate ModestAttachmentViewPrivate;
53
54 struct _ModestAttachmentViewPrivate
55 {
56         TnyMimePart *mime_part;
57
58         GtkWidget *icon;
59         GtkWidget *filename_view;
60         GtkWidget *size_view;
61
62         gboolean detect_size;
63         TnyStream *get_size_stream;
64         guint64 size;
65
66         PangoLayout *layout_full_filename;
67         gboolean is_purged;
68
69 };
70
71 #ifdef MODEST_TOOLKIT_HILDON2
72 #define UNKNOWN_FILE_ICON "filemanager_unknown_file"
73 #else
74 #define UNKNOWN_FILE_ICON "qgn_list_gene_unknown_file"
75 #endif
76
77 #define MODEST_ATTACHMENT_VIEW_GET_PRIVATE(o)   \
78         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_ATTACHMENT_VIEW, ModestAttachmentViewPrivate))
79
80 /* TnyMimePartView functions */
81 static TnyMimePart *modest_attachment_view_get_part (TnyMimePartView *self);
82 static TnyMimePart *modest_attachment_view_get_part_default (TnyMimePartView *self);
83 static void modest_attachment_view_set_part (TnyMimePartView *self, TnyMimePart *mime_part);
84 static void modest_attachment_view_set_part_default (TnyMimePartView *self, TnyMimePart *mime_part);
85 static void modest_attachment_view_clear (TnyMimePartView *self);
86 static void modest_attachment_view_clear_default (TnyMimePartView *self);
87
88 /* Gtk events */
89 static void size_allocate (GtkWidget *widget, GtkAllocation *allocation);
90
91 /* GObject and GInterface management */
92 static void modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class);
93 static void modest_attachment_view_finalize (GObject *object);
94 static void modest_attachment_view_class_init (ModestAttachmentViewClass *klass);
95 static void tny_mime_part_view_init (gpointer g, gpointer iface_data);
96
97
98
99 static void update_filename_request (ModestAttachmentView *self);
100
101 static void update_size_label (ModestAttachmentView *self)
102 {
103         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
104         gchar *size_str;
105         gchar *label_text;
106
107         size_str = modest_text_utils_get_display_size (priv->size);
108         label_text = g_strdup_printf (" (%s)", size_str);
109         g_free (size_str);
110         gtk_label_set_text (GTK_LABEL (priv->size_view), label_text);
111         g_free (label_text);
112 }
113
114 static gboolean
115 idle_get_mime_part_size_cb (gpointer userdata)
116 {
117         ModestAttachmentView *view = (ModestAttachmentView *) userdata;
118         gdk_threads_enter ();
119
120         if (GTK_WIDGET_VISIBLE (view)) {
121                 update_size_label (view);
122         }
123
124         gdk_threads_leave ();
125
126         g_object_unref (view);
127
128         return FALSE;
129 }
130
131 static gpointer
132 get_mime_part_size_thread (gpointer thr_user_data)
133 {
134         ModestAttachmentView *view =  (ModestAttachmentView *) thr_user_data;
135         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (view);
136         gsize total = 0;
137         gssize result = 0;
138
139         result = tny_mime_part_decode_to_stream (priv->mime_part, priv->get_size_stream, NULL);
140         total = modest_count_stream_get_count(MODEST_COUNT_STREAM (priv->get_size_stream));
141         if (total == 0) {
142                 modest_count_stream_reset_count(MODEST_COUNT_STREAM (priv->get_size_stream));
143                 result = tny_mime_part_write_to_stream (priv->mime_part, priv->get_size_stream, NULL);
144                 total = modest_count_stream_get_count(MODEST_COUNT_STREAM (priv->get_size_stream));
145         }
146         
147         /* if there was an error, don't set the size (this is pretty uncommon) */
148         if (result < 0) {
149                 g_warning ("%s: error while writing mime part to stream\n", __FUNCTION__);
150         } else {
151                 priv->size = (guint64)total;
152                 g_idle_add (idle_get_mime_part_size_cb, g_object_ref (view));
153         }
154         g_object_unref (view);
155
156         return NULL;
157 }
158
159 void
160 modest_attachment_view_set_detect_size (ModestAttachmentView *self, gboolean detect_size)
161 {
162         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
163
164         priv->detect_size = detect_size;
165         
166 }
167
168 void
169 modest_attachment_view_set_size (ModestAttachmentView *self, guint64 size)
170 {
171         ModestAttachmentViewPrivate *priv;
172
173         g_return_if_fail (MODEST_IS_ATTACHMENT_VIEW (self));
174         priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
175
176         if (!priv->detect_size) {
177                 priv->size = size;
178                 update_size_label (self);
179         } else {
180                 g_assert ("Shouldn't set the size of the attachment view if detect size is enabled");
181         }
182 }
183
184 guint64
185 modest_attachment_view_get_size (ModestAttachmentView *self)
186 {
187         ModestAttachmentViewPrivate *priv;
188
189         g_return_val_if_fail (MODEST_IS_ATTACHMENT_VIEW (self), 0);
190         priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
191
192         return priv->size;
193 }
194
195 static TnyMimePart *
196 modest_attachment_view_get_part (TnyMimePartView *self)
197 {
198         return MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->get_part_func (self);
199 }
200
201 static TnyMimePart *
202 modest_attachment_view_get_part_default (TnyMimePartView *self)
203 {
204         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
205
206         if (priv->mime_part)
207                 return TNY_MIME_PART (g_object_ref (priv->mime_part));
208         else
209                 return NULL;
210 }
211
212 static void
213 update_filename_request (ModestAttachmentView *self)
214 {
215         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
216         /* gint width, height; */
217         
218         pango_layout_set_text (PANGO_LAYOUT (priv->layout_full_filename), 
219                                gtk_label_get_text (GTK_LABEL (priv->filename_view)), -1);
220
221
222 }
223
224 static void
225 modest_attachment_view_set_part (TnyMimePartView *self, TnyMimePart *mime_part)
226 {
227         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->set_part_func (self, mime_part);
228         return;
229 }
230
231
232 static void
233 modest_attachment_view_set_part_default (TnyMimePartView *self, TnyMimePart *mime_part)
234 {
235         ModestAttachmentViewPrivate *priv = NULL;
236         gchar *filename = NULL;
237         gchar *file_icon_name = NULL;
238         gboolean show_size = FALSE;
239         
240         g_return_if_fail (TNY_IS_MIME_PART_VIEW (self));
241         g_return_if_fail (TNY_IS_MIME_PART (mime_part));
242         priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
243
244         if (priv->mime_part != NULL) {
245                 g_object_unref (priv->mime_part);
246         }
247
248         priv->mime_part = g_object_ref (mime_part);
249
250         priv->size = 0;
251         priv->is_purged = tny_mime_part_is_purged (mime_part);
252
253         if (TNY_IS_MSG (mime_part)) {
254                 TnyHeader *header = tny_msg_get_header (TNY_MSG (mime_part));
255                 if (TNY_IS_HEADER (header)) {
256                         filename = g_strdup (tny_mime_part_get_filename (mime_part));
257                         if (!filename)
258                                 filename = tny_header_dup_subject (header);
259                         if (filename == NULL || filename[0] == '\0') {
260                                 if (filename)
261                                         g_free (filename);
262                                 filename = g_strdup (_("mail_va_no_subject"));
263                         }
264                         if (priv->is_purged) {
265                                 file_icon_name = modest_platform_get_file_icon_name (NULL, NULL, NULL);
266                         } else {
267                                 gchar *header_content_type;
268                                 header_content_type = modest_tny_mime_part_get_content_type (mime_part);
269                                 if ((g_str_has_prefix (header_content_type, "message/rfc822") ||
270                                      g_str_has_prefix (header_content_type, "multipart/") ||
271                                      g_str_has_prefix (header_content_type, "text/"))) {
272                                         file_icon_name = 
273                                                 modest_platform_get_file_icon_name (
274                                                         NULL, tny_mime_part_get_content_type (mime_part), NULL);
275                                 } else {
276                                         file_icon_name = 
277                                                 modest_platform_get_file_icon_name (
278                                                         NULL, header_content_type, NULL);
279                                 }
280                                 g_free (header_content_type);
281                         }
282                         g_object_unref (header);
283                 }
284         } else {
285                 gboolean is_other_body = FALSE;
286                 filename = g_strdup (tny_mime_part_get_filename (mime_part));
287                 if (filename == NULL) {
288                         gchar *description;
289                         description = modest_tny_mime_part_get_header_value (mime_part, "Content-Description");
290                         if (description) {
291                                 g_strstrip (description);
292                                 filename = description;
293                         }
294                         if (!filename || filename[0] == '\0') {
295                                 g_free (filename);
296                                 filename = g_strdup (_("mail_va_no_subject"));
297                         }
298                         is_other_body = TRUE;
299                 }
300                 if (priv->is_purged) {
301                         file_icon_name = modest_platform_get_file_icon_name (NULL, NULL, NULL);
302                 } else {
303                         if (is_other_body) {
304                                 file_icon_name = modest_platform_get_file_icon_name (NULL, "message/rfc822", NULL);
305                         } else {
306                                 file_icon_name = modest_platform_get_file_icon_name (
307                                         filename, modest_tny_mime_part_get_content_type (mime_part), NULL);
308                                 show_size = TRUE;
309                         }
310                 }
311         }
312
313         if (file_icon_name) {
314                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), file_icon_name, GTK_ICON_SIZE_MENU);
315                 g_free (file_icon_name);
316         } else {
317                 gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), UNKNOWN_FILE_ICON, GTK_ICON_SIZE_MENU);
318         }
319
320         if (priv->is_purged) {
321                 gchar * label_str = g_markup_printf_escaped(
322                         "<span style='italic' foreground='grey'>%s</span>",
323                         filename);
324                 gtk_label_set_markup (GTK_LABEL (priv->filename_view), label_str);
325                 g_free (label_str);
326         } else {
327                 gtk_label_set_text (GTK_LABEL (priv->filename_view), filename);
328         }
329         g_free (filename);
330         update_filename_request (MODEST_ATTACHMENT_VIEW (self));
331
332         gtk_label_set_text (GTK_LABEL (priv->size_view), "");
333
334         if (show_size && priv->detect_size) {
335                 gchar *disposition;
336
337                 disposition = modest_tny_mime_part_get_header_value (mime_part, "Content-Disposition");
338                 if (disposition) {
339                         const gchar *size_tmp;
340                         size_tmp = strstr (disposition, "size=");
341                         if (size_tmp) size_tmp += strlen("size=");
342                         if (size_tmp) {
343                                 gchar *disposition_value;
344                                 const gchar *size_end;
345                                 size_end = strstr (size_tmp, ";");
346                                 if (size_end == NULL) {
347                                         disposition_value = g_strdup (size_tmp);
348                                 } else {
349                                         disposition_value = g_strndup (size_tmp, size_end - size_tmp);
350                                 }
351                                 if (disposition_value && disposition_value[0] != '\0') {
352                                         priv->size = atoll (disposition_value);
353                                         if (priv->size != 0) {
354                                                 show_size = FALSE;
355                                                 update_size_label (MODEST_ATTACHMENT_VIEW (self));
356                                         }
357                                 }
358                                 g_free (disposition_value);
359                         }
360                         
361                         g_free (disposition);
362                 }
363         }
364
365         if (show_size && priv->detect_size) {
366                 g_object_ref (self);
367                 if (!priv->get_size_stream)
368                         priv->get_size_stream = modest_count_stream_new ();
369                 g_thread_create (get_mime_part_size_thread, self, FALSE, NULL);
370         }
371
372         gtk_widget_queue_draw (GTK_WIDGET (self));
373 }
374
375 static void
376 modest_attachment_view_clear (TnyMimePartView *self)
377 {
378         MODEST_ATTACHMENT_VIEW_GET_CLASS (self)->clear_func (self);
379         return;
380 }
381
382 static void
383 modest_attachment_view_clear_default (TnyMimePartView *self)
384 {
385         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (self);
386
387         if (priv->mime_part != NULL) {
388                 g_object_unref (priv->mime_part);
389                 priv->mime_part = NULL;
390         }
391
392         if (priv->get_size_stream)
393                 modest_count_stream_reset_count(MODEST_COUNT_STREAM (priv->get_size_stream));
394
395         priv->size = 0;
396
397         gtk_image_set_from_icon_name (GTK_IMAGE (priv->icon), 
398                                       UNKNOWN_FILE_ICON,
399                                       GTK_ICON_SIZE_MENU);
400         gtk_label_set_text (GTK_LABEL (priv->filename_view), "");
401         update_filename_request (MODEST_ATTACHMENT_VIEW(self));
402         gtk_label_set_text (GTK_LABEL (priv->size_view), " ");
403
404         gtk_widget_queue_draw (GTK_WIDGET (self));
405 }
406
407
408 /**
409  * modest_attachment_view_new:
410  * @mime_part: a #TnyMimePart
411  *
412  * Constructor for attachment view widget.
413  *
414  * Return value: a new #ModestAttachmentView instance implemented for Gtk+
415  **/
416 GtkWidget*
417 modest_attachment_view_new (TnyMimePart *mime_part, gboolean detect_size)
418 {
419         ModestAttachmentView *self = g_object_new (MODEST_TYPE_ATTACHMENT_VIEW, 
420                                                    NULL);
421
422         modest_attachment_view_set_detect_size (self, detect_size);
423
424         modest_attachment_view_set_part (TNY_MIME_PART_VIEW (self), mime_part);
425
426         return GTK_WIDGET (self);
427 }
428
429 static void
430 modest_attachment_view_instance_init (GTypeInstance *instance, gpointer g_class)
431 {
432         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (instance);
433         PangoContext *context;
434         GtkWidget *box = NULL;
435         GtkWidget *icon_alignment = NULL;
436
437 #ifdef MODEST_TOOLKIT_HILDON2
438         PangoAttrList *attr_list;
439         attr_list = pango_attr_list_new ();
440         pango_attr_list_insert (attr_list, pango_attr_underline_new (PANGO_UNDERLINE_SINGLE));
441 #endif
442
443         priv->mime_part = NULL;
444         icon_alignment = gtk_alignment_new (0.5, 0.5, 1.0, 1.0);
445         gtk_alignment_set_padding (GTK_ALIGNMENT (icon_alignment), 0, 0, 0, MODEST_MARGIN_DEFAULT);
446         priv->icon = gtk_image_new ();
447         priv->filename_view = gtk_label_new ("");
448         gtk_label_set_line_wrap (GTK_LABEL (priv->filename_view), FALSE);
449         gtk_label_set_ellipsize (GTK_LABEL (priv->filename_view), PANGO_ELLIPSIZE_END);
450         gtk_label_set_single_line_mode (GTK_LABEL (priv->filename_view), TRUE);
451         gtk_label_set_selectable (GTK_LABEL (priv->filename_view), FALSE);
452         priv->size_view = gtk_label_new (" ");
453         gtk_label_set_line_wrap (GTK_LABEL (priv->size_view), FALSE);
454         gtk_label_set_selectable (GTK_LABEL (priv->size_view), FALSE);
455         gtk_misc_set_alignment (GTK_MISC (priv->size_view), 0.0, 0.5);
456         gtk_misc_set_alignment (GTK_MISC (priv->filename_view), 0.0, 0.5);
457
458 #ifdef MODEST_TOOLKIT_HILDON2
459         gtk_label_set_attributes (GTK_LABEL (priv->filename_view), attr_list);
460         gtk_label_set_attributes (GTK_LABEL (priv->size_view), attr_list);
461 #endif
462
463         priv->get_size_stream = NULL;
464         priv->size = 0;
465         priv->detect_size = TRUE;
466
467         box = gtk_hbox_new (FALSE, 0);
468         gtk_container_add (GTK_CONTAINER (icon_alignment), priv->icon);
469         gtk_box_pack_start (GTK_BOX (box), icon_alignment, FALSE, FALSE, 0);
470         gtk_box_pack_start (GTK_BOX (box), priv->filename_view, TRUE, TRUE, 0);
471         gtk_box_pack_start (GTK_BOX (box), priv->size_view, FALSE, FALSE, 0);
472         gtk_container_add (GTK_CONTAINER (instance), box);
473
474 /*      gtk_widget_get_style */
475 /*      gtk_widget_modify_bg (instance, GTK_STATE_SELECTED, selection_color); */
476
477         context = gtk_widget_get_pango_context (priv->filename_view);
478         priv->layout_full_filename = pango_layout_new (context);
479         
480         pango_layout_set_ellipsize (priv->layout_full_filename, PANGO_ELLIPSIZE_NONE);
481
482         gtk_event_box_set_above_child (GTK_EVENT_BOX (instance), FALSE);
483         gtk_event_box_set_visible_window (GTK_EVENT_BOX (instance), TRUE);
484         gtk_widget_set_events (GTK_WIDGET (instance), 0);
485
486 #ifdef MODEST_TOOLKIT_HILDON2
487         pango_attr_list_unref (attr_list);
488 #endif
489
490         GTK_WIDGET_UNSET_FLAGS (GTK_WIDGET (instance), GTK_CAN_FOCUS);
491
492         return;
493 }
494
495 static void
496 modest_attachment_view_finalize (GObject *object)
497 {
498         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (object);
499
500         if (priv->get_size_stream != NULL) {
501                 g_object_unref (priv->get_size_stream);
502                 priv->get_size_stream = NULL;
503         }
504
505         if (G_LIKELY (priv->mime_part)) {
506                 g_object_unref (G_OBJECT (priv->mime_part));
507                 priv->mime_part = NULL;
508         }
509
510         (*parent_class->finalize) (object);
511
512         return;
513 }
514
515 static void
516 size_allocate (GtkWidget *widget, GtkAllocation *allocation)
517 {
518         ModestAttachmentViewPrivate *priv = MODEST_ATTACHMENT_VIEW_GET_PRIVATE (widget);
519         gint width, width_diff;
520
521         GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
522         pango_layout_set_font_description (priv->layout_full_filename, pango_context_get_font_description(pango_layout_get_context (gtk_label_get_layout (GTK_LABEL (priv->filename_view)))));
523
524         pango_layout_get_pixel_size (priv->layout_full_filename, &width, NULL);
525         width_diff = priv->filename_view->allocation.width - width;
526         if (width_diff > 0) {
527                 GtkAllocation filename_alloc, filesize_alloc;
528                 filename_alloc = priv->filename_view->allocation;
529                 filesize_alloc = priv->size_view->allocation;
530                 filename_alloc.width -= width_diff;
531                 filesize_alloc.width += width_diff;
532                 filesize_alloc.x -= width_diff;
533                 gtk_widget_size_allocate (priv->filename_view, &filename_alloc);
534                 gtk_widget_size_allocate (priv->size_view, &filesize_alloc);
535         }
536         
537 }
538
539
540 static void 
541 modest_attachment_view_class_init (ModestAttachmentViewClass *klass)
542 {
543         GObjectClass *object_class;
544         GtkWidgetClass *widget_class;
545
546         parent_class = g_type_class_peek_parent (klass);
547         object_class = (GObjectClass*) klass;
548         widget_class = GTK_WIDGET_CLASS (klass);
549
550         object_class->finalize = modest_attachment_view_finalize;
551
552         klass->get_part_func = modest_attachment_view_get_part_default;
553         klass->set_part_func = modest_attachment_view_set_part_default;
554         klass->clear_func = modest_attachment_view_clear_default;
555
556         widget_class->size_allocate = size_allocate;
557
558         g_type_class_add_private (object_class, sizeof (ModestAttachmentViewPrivate));
559
560         return;
561 }
562
563 static void
564 tny_mime_part_view_init (gpointer g, gpointer iface_data)
565 {
566         TnyMimePartViewIface *klass = (TnyMimePartViewIface *)g;
567
568         klass->get_part = modest_attachment_view_get_part;
569         klass->set_part = modest_attachment_view_set_part;
570         klass->clear = modest_attachment_view_clear;
571
572         return;
573 }
574
575 GType 
576 modest_attachment_view_get_type (void)
577 {
578         static GType type = 0;
579
580         if (G_UNLIKELY(type == 0))
581         {
582                 static const GTypeInfo info = 
583                 {
584                   sizeof (ModestAttachmentViewClass),
585                   NULL,   /* base_init */
586                   NULL,   /* base_finalize */
587                   (GClassInitFunc) modest_attachment_view_class_init,   /* class_init */
588                   NULL,   /* class_finalize */
589                   NULL,   /* class_data */
590                   sizeof (ModestAttachmentView),
591                   0,      /* n_preallocs */
592                   modest_attachment_view_instance_init    /* instance_init */
593                 };
594
595                 static const GInterfaceInfo tny_mime_part_view_info =
596                 {
597                         (GInterfaceInitFunc) tny_mime_part_view_init, /* interface_init */
598                         NULL,        /* interface_finalize */
599                         NULL         /* interface_data */
600                 };
601
602                 type = g_type_register_static (GTK_TYPE_EVENT_BOX,
603                         "ModestAttachmentView",
604                         &info, 0);
605
606                 g_type_add_interface_static (type, TNY_TYPE_MIME_PART_VIEW,
607                                              &tny_mime_part_view_info);
608
609         }
610
611         return type;
612 }