* src/widgets/modest-attachment-view.c:
[modest] / src / widgets / modest-attachments-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 #include <config.h>
31
32 //#include <glib/gi18n-lib.h>
33
34 #include <string.h>
35 #include <gtk/gtk.h>
36 #include <gdk/gdkkeysyms.h>
37 #include <tny-list.h>
38 #include <tny-simple-list.h>
39
40 #include <modest-platform.h>
41 #include <modest-runtime.h>
42 #include <modest-attachment-view.h>
43 #include <modest-attachments-view.h>
44
45 static GObjectClass *parent_class = NULL;
46
47 /* signals */
48 enum {
49         ACTIVATE_SIGNAL,
50         LAST_SIGNAL
51 };
52
53 typedef struct _ModestAttachmentsViewPrivate ModestAttachmentsViewPrivate;
54
55 struct _ModestAttachmentsViewPrivate
56 {
57         TnyMsg *msg;
58         GtkWidget *box;
59         GList *selected;
60         GtkWidget *rubber_start;
61 };
62
63 #define MODEST_ATTACHMENTS_VIEW_GET_PRIVATE(o)  \
64         (G_TYPE_INSTANCE_GET_PRIVATE ((o), MODEST_TYPE_ATTACHMENTS_VIEW, ModestAttachmentsViewPrivate))
65
66 static gboolean button_press_event (GtkWidget *widget, GdkEventButton *event, ModestAttachmentsView *atts_view);
67 static gboolean motion_notify_event (GtkWidget *widget, GdkEventMotion *event, ModestAttachmentsView *atts_view);
68 static gboolean button_release_event (GtkWidget *widget, GdkEventButton *event, ModestAttachmentsView *atts_view);
69 static gboolean key_press_event (GtkWidget *widget, GdkEventKey *event, ModestAttachmentsView *atts_view);
70 static GtkWidget *get_att_view_at_coords (ModestAttachmentsView *atts_view,
71                                           gdouble x, gdouble y);
72 static void unselect_all (ModestAttachmentsView *atts_view);
73 static void set_selected (ModestAttachmentsView *atts_view, ModestAttachmentView *att_view);
74 static void select_range (ModestAttachmentsView *atts_view, ModestAttachmentView *att1, ModestAttachmentView *att2);
75 static void clipboard_get (GtkClipboard *clipboard, GtkSelectionData *selection_data,
76                            guint info, gpointer userdata);
77 static void clipboard_clear (GtkClipboard *clipboard, gpointer userdata);
78 static void own_clipboard (ModestAttachmentsView *atts_view);
79
80 static guint signals[LAST_SIGNAL] = {0};
81
82 /**
83  * modest_attachments_view_new:
84  * @msg: a #TnyMsg
85  *
86  * Constructor for attachments view widget.
87  *
88  * Return value: a new #ModestAttachmentsView instance implemented for Gtk+
89  **/
90 GtkWidget*
91 modest_attachments_view_new (TnyMsg *msg)
92 {
93         ModestAttachmentsView *self = g_object_new (MODEST_TYPE_ATTACHMENTS_VIEW, 
94                                                     "resize-mode", GTK_RESIZE_PARENT,
95                                                     NULL);
96
97         modest_attachments_view_set_message (self, msg);
98
99         return GTK_WIDGET (self);
100 }
101
102 void
103 modest_attachments_view_set_message (ModestAttachmentsView *attachments_view, TnyMsg *msg)
104 {
105         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (attachments_view);
106         TnyList *parts;
107         TnyIterator *iter;
108         
109         if (msg == priv->msg) return;
110
111         if (priv->msg) 
112                 g_object_unref (priv->msg);
113         if (msg)
114                 g_object_ref (G_OBJECT(msg));
115         
116         priv->msg = msg;
117
118         g_list_free (priv->selected);
119         priv->selected = NULL;
120
121         gtk_container_foreach (GTK_CONTAINER (priv->box), (GtkCallback) gtk_widget_destroy, NULL);
122         
123         if (priv->msg == NULL) {
124                 return;
125         }
126
127         parts = TNY_LIST (tny_simple_list_new ());
128         tny_mime_part_get_parts (TNY_MIME_PART (priv->msg), parts);
129         iter = tny_list_create_iterator (parts);
130
131         while (!tny_iterator_is_done (iter)) {
132                 TnyMimePart *part;
133
134                 part = TNY_MIME_PART (tny_iterator_get_current (iter));
135                 if (tny_mime_part_is_attachment (part) || TNY_IS_MSG (part)) {
136                         modest_attachments_view_add_attachment (attachments_view, part);
137                 }
138                 g_object_unref (part);
139                 tny_iterator_next (iter);
140         }
141
142         gtk_widget_queue_draw (GTK_WIDGET (attachments_view));
143
144 }
145
146 void
147 modest_attachments_view_add_attachment (ModestAttachmentsView *attachments_view, TnyMimePart *part)
148 {
149         GtkWidget *att_view = NULL;
150         ModestAttachmentsViewPrivate *priv = NULL;
151
152         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (attachments_view));
153         g_return_if_fail (TNY_IS_MIME_PART (part));
154
155         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (attachments_view);
156
157         att_view = modest_attachment_view_new (part);
158         gtk_box_pack_end (GTK_BOX (priv->box), att_view, FALSE, FALSE, 0);
159         gtk_widget_show_all (att_view);
160 }
161
162 void
163 modest_attachments_view_remove_attachment (ModestAttachmentsView *atts_view, TnyMimePart *mime_part)
164 {
165         ModestAttachmentsViewPrivate *priv = NULL;
166         GList *box_children = NULL, *node = NULL;
167         ModestAttachmentView *found_att_view = NULL;
168
169         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view));
170         g_return_if_fail (TNY_IS_MIME_PART (mime_part));
171
172         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
173         box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
174
175         for (node = box_children; node != NULL; node = g_list_next (node)) {
176                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
177                 TnyMimePart *cur_mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
178
179                 if (mime_part == cur_mime_part)
180                         found_att_view = att_view;
181
182                 g_object_unref (cur_mime_part);
183
184                 if (found_att_view != NULL)
185                         break;
186         }
187
188         if (found_att_view) {
189                 gtk_widget_destroy (GTK_WIDGET (found_att_view));
190         }
191
192 }
193
194 void
195 modest_attachments_view_remove_attachment_by_id (ModestAttachmentsView *atts_view, const gchar *att_id)
196 {
197         ModestAttachmentsViewPrivate *priv = NULL;
198         GList *box_children = NULL, *node = NULL;
199
200         g_return_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view));
201         g_return_if_fail (att_id != NULL);
202
203         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
204         box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
205
206         for (node = box_children; node != NULL; node = g_list_next (node)) {
207                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
208                 TnyMimePart *cur_mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
209                 const gchar *mime_part_id = NULL;
210
211                 mime_part_id = tny_mime_part_get_content_id (cur_mime_part);
212                 if ((mime_part_id != NULL) && (strcmp (mime_part_id, att_id) == 0))
213                         gtk_widget_destroy (GTK_WIDGET (att_view));
214
215                 g_object_unref (cur_mime_part);
216         }
217
218 }
219
220 static void
221 modest_attachments_view_instance_init (GTypeInstance *instance, gpointer g_class)
222 {
223         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (instance);
224
225         priv->msg = NULL;
226         priv->box = gtk_vbox_new (FALSE, 0);
227         priv->rubber_start = NULL;
228         priv->selected = NULL;
229
230         gtk_container_add (GTK_CONTAINER (instance), priv->box);
231         gtk_event_box_set_above_child (GTK_EVENT_BOX (instance), TRUE);
232
233         g_signal_connect (G_OBJECT (instance), "button-press-event", G_CALLBACK (button_press_event), instance);
234         g_signal_connect (G_OBJECT (instance), "button-release-event", G_CALLBACK (button_release_event), instance);
235         g_signal_connect (G_OBJECT (instance), "motion-notify-event", G_CALLBACK (motion_notify_event), instance);
236         g_signal_connect (G_OBJECT (instance), "key-press-event", G_CALLBACK (key_press_event), instance);
237
238         GTK_WIDGET_SET_FLAGS (instance, GTK_CAN_FOCUS);
239
240         return;
241 }
242
243 static void
244 modest_attachments_view_finalize (GObject *object)
245 {
246         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (object);
247
248         if (priv->msg) {
249                 g_object_unref (priv->msg);
250                 priv->msg = NULL;
251         }
252
253         (*parent_class->finalize) (object);
254
255         return;
256 }
257
258 static void 
259 modest_attachments_view_class_init (ModestAttachmentsViewClass *klass)
260 {
261         GObjectClass *object_class;
262         GtkWidgetClass *widget_class;
263
264         parent_class = g_type_class_peek_parent (klass);
265         object_class = (GObjectClass*) klass;
266         widget_class = GTK_WIDGET_CLASS (klass);
267
268         object_class->finalize = modest_attachments_view_finalize;
269
270         klass->activate = NULL;
271
272         g_type_class_add_private (object_class, sizeof (ModestAttachmentsViewPrivate));
273
274         signals[ACTIVATE_SIGNAL] =
275                 g_signal_new ("activate",
276                               G_TYPE_FROM_CLASS (object_class),
277                               G_SIGNAL_RUN_FIRST | G_SIGNAL_ACTION,
278                               G_STRUCT_OFFSET(ModestAttachmentsViewClass, activate),
279                               NULL, NULL,
280                               g_cclosure_marshal_VOID__OBJECT,
281                               G_TYPE_NONE, 1, G_TYPE_OBJECT);
282         
283         return;
284 }
285
286 GType 
287 modest_attachments_view_get_type (void)
288 {
289         static GType type = 0;
290
291         if (G_UNLIKELY(type == 0))
292         {
293                 static const GTypeInfo info = 
294                 {
295                   sizeof (ModestAttachmentsViewClass),
296                   NULL,   /* base_init */
297                   NULL,   /* base_finalize */
298                   (GClassInitFunc) modest_attachments_view_class_init,   /* class_init */
299                   NULL,   /* class_finalize */
300                   NULL,   /* class_data */
301                   sizeof (ModestAttachmentsView),
302                   0,      /* n_preallocs */
303                   modest_attachments_view_instance_init    /* instance_init */
304                 };
305
306                 type = g_type_register_static (GTK_TYPE_EVENT_BOX,
307                         "ModestAttachmentsView",
308                         &info, 0);
309
310         }
311
312         return type;
313 }
314
315 /* buttons signal events */
316 static gboolean
317 button_press_event (GtkWidget *widget, 
318                     GdkEventButton *event,
319                     ModestAttachmentsView *atts_view)
320 {
321         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
322         if (!GTK_WIDGET_HAS_FOCUS (widget))
323                 gtk_widget_grab_focus (widget);
324
325         if (event->button == 1 && event->type == GDK_BUTTON_PRESS) {
326                 GtkWidget *att_view = NULL;
327
328                 att_view = get_att_view_at_coords (MODEST_ATTACHMENTS_VIEW (widget), 
329                                                    (gint) event->x_root, (gint) event->y_root);
330
331                 if (att_view != NULL) {
332                         if (GTK_WIDGET_STATE (att_view) == GTK_STATE_SELECTED && (g_list_length (priv->selected) < 2)) {
333                                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
334                                 if (TNY_IS_MIME_PART (mime_part)) {
335                                         g_signal_emit (G_OBJECT (widget), signals[ACTIVATE_SIGNAL], 0, mime_part);
336                                         g_object_unref (mime_part);
337                                 }
338                         } else {
339                                 set_selected (MODEST_ATTACHMENTS_VIEW (widget), MODEST_ATTACHMENT_VIEW (att_view));
340                                 priv->rubber_start = att_view;
341                                 gtk_grab_add (widget);
342                         }
343                 }
344         }
345         return TRUE;
346
347 }
348
349 static gboolean
350 button_release_event (GtkWidget *widget,
351                       GdkEventButton *event,
352                       ModestAttachmentsView *atts_view)
353 {
354         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
355         if (widget == gtk_grab_get_current ()) {
356                 GtkWidget *att_view = NULL;
357
358                 att_view = get_att_view_at_coords (MODEST_ATTACHMENTS_VIEW (widget), 
359                                                    (gint) event->x_root, (gint) event->y_root);
360
361                 if (att_view != NULL) {
362                         unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
363                         select_range (MODEST_ATTACHMENTS_VIEW (widget), 
364                                       MODEST_ATTACHMENT_VIEW (priv->rubber_start), 
365                                       MODEST_ATTACHMENT_VIEW (att_view));
366                 }
367                 priv->rubber_start = NULL;
368                 gtk_grab_remove (widget);
369         }
370         return TRUE;
371 }
372
373 static gboolean
374 motion_notify_event (GtkWidget *widget,
375                      GdkEventMotion *event,
376                      ModestAttachmentsView *atts_view)
377 {
378         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
379         if (gtk_grab_get_current () == widget) {
380                 GtkWidget *att_view = NULL;
381
382                 att_view = get_att_view_at_coords (MODEST_ATTACHMENTS_VIEW (widget), 
383                                                    (gint) event->x_root, (gint) event->y_root);
384
385                 if (att_view != NULL) {
386                         unselect_all (MODEST_ATTACHMENTS_VIEW (widget));
387                         select_range (MODEST_ATTACHMENTS_VIEW (widget), 
388                                       MODEST_ATTACHMENT_VIEW (priv->rubber_start), 
389                                       MODEST_ATTACHMENT_VIEW (att_view));
390                 }
391         }
392         return TRUE;
393 }
394
395 static gboolean
396 key_press_event (GtkWidget *widget,
397                  GdkEventKey *event,
398                  ModestAttachmentsView *atts_view)
399 {
400         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
401
402         /* If grabbed (for example rubber banding), escape leaves the rubberbanding mode */
403         if (gtk_grab_get_current () == widget) {
404                 if (event->keyval == GDK_Escape) {
405                         set_selected (MODEST_ATTACHMENTS_VIEW (widget),
406                                       MODEST_ATTACHMENT_VIEW (priv->rubber_start));
407                         priv->rubber_start = NULL;
408                         gtk_grab_remove (widget);
409                         return TRUE;
410                 } 
411                 return FALSE;
412         }
413
414         if (event->keyval == GDK_Up) {
415                 ModestAttachmentView *current_sel = NULL;
416                 gboolean move_out = FALSE;
417                 GList * box_children, *new_sel;
418
419                 box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
420                 if (box_children == NULL)
421                         move_out = TRUE;
422                 else if ((priv->selected != NULL)&&(priv->selected->data != box_children->data))
423                         current_sel = (ModestAttachmentView *) priv->selected->data;
424                 else
425                         move_out = TRUE;
426
427                 if (move_out) {
428                         GtkWidget *toplevel = NULL;
429                         /* move cursor outside */
430                         toplevel = gtk_widget_get_toplevel (widget);
431                         if (GTK_WIDGET_TOPLEVEL (toplevel) && GTK_IS_WINDOW (toplevel))
432                                 g_signal_emit_by_name (toplevel, "move-focus", GTK_DIR_UP);
433                         unselect_all (atts_view);
434                 } else {
435                         new_sel = g_list_find (box_children, (gpointer) current_sel);
436                         new_sel = g_list_previous (new_sel);
437                         set_selected (MODEST_ATTACHMENTS_VIEW (atts_view), MODEST_ATTACHMENT_VIEW (new_sel->data));
438                 }
439                 g_list_free (box_children);
440                 return TRUE;
441         }
442
443         if (event->keyval == GDK_Down) {
444                 ModestAttachmentView *current_sel = NULL;
445                 gboolean move_out = FALSE;
446                 GList * box_children, *new_sel, *last_child = NULL;
447
448                 box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
449
450                 if (box_children == NULL) {
451                         move_out = TRUE;
452                 } else {
453                         last_child = g_list_last (box_children);
454                         if (priv->selected != NULL) {
455                                 GList *last_selected = g_list_last (priv->selected);
456                                 if (last_selected->data != last_child->data)
457                                         current_sel = (ModestAttachmentView *) last_selected->data;
458                                 else
459                                         move_out = TRUE;
460                         } else {
461                                 move_out = TRUE;
462                         }
463                 }
464
465                 if (move_out) {
466                         GtkWidget *toplevel = NULL;
467                         /* move cursor outside */
468                         toplevel = gtk_widget_get_toplevel (widget);
469                         if (GTK_WIDGET_TOPLEVEL (toplevel) && GTK_IS_WINDOW (toplevel))
470                                 g_signal_emit_by_name (toplevel, "move-focus", GTK_DIR_DOWN);
471                         unselect_all (atts_view);
472                 } else {
473                         new_sel = g_list_find (box_children, (gpointer) current_sel);
474                         new_sel = g_list_next (new_sel);
475                         set_selected (MODEST_ATTACHMENTS_VIEW (atts_view), MODEST_ATTACHMENT_VIEW (new_sel->data));
476                 }
477                 g_list_free (box_children);
478                 return TRUE;
479         }
480
481         /* Activates selected item */
482         if (g_list_length (priv->selected) == 1) {
483                 ModestAttachmentView *att_view = (ModestAttachmentView *) priv->selected->data;
484                 if ((event->keyval == GDK_Return)) {
485                         TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
486                         if (TNY_IS_MIME_PART (mime_part)) {
487                                 g_signal_emit (G_OBJECT (widget), signals[ACTIVATE_SIGNAL], 0, mime_part);
488                                 g_object_unref (mime_part);
489                         }
490                         return TRUE;
491                 }
492         }
493
494         return FALSE;
495 }
496
497
498 static GtkWidget *
499 get_att_view_at_coords (ModestAttachmentsView *atts_view,
500                         gdouble x, gdouble y)
501 {
502         ModestAttachmentsViewPrivate *priv = NULL;
503         GList *att_view_list, *node;
504         GtkWidget *result = NULL;
505
506         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
507         att_view_list = gtk_container_get_children (GTK_CONTAINER (priv->box));
508         
509         for (node = att_view_list; node != NULL; node = g_list_next (node)) {
510                 GtkWidget *att_view = (GtkWidget *) node->data;
511                 gint pos_x, pos_y, w, h, int_x, int_y;
512                 gint widget_x, widget_y;
513
514                 gdk_window_get_origin (att_view->window, &widget_x, &widget_y);
515
516                 pos_x = widget_x;
517                 pos_y = widget_y;
518                 w = att_view->allocation.width;
519                 h = att_view->allocation.height;
520
521                 int_x = (gint) x - GTK_WIDGET (atts_view)->allocation.x;
522                 int_y = (gint) y - GTK_WIDGET (atts_view)->allocation.y;
523
524                 if ((x >= pos_x) && (x <= (pos_x + w)) && (y >= pos_y) && (y <= (pos_y + h))) {
525                         result = att_view;
526                         break;
527                 }
528         }
529
530         g_list_free (att_view_list);
531         return result;
532 }
533
534 static void
535 unselect_all (ModestAttachmentsView *atts_view)
536 {
537         ModestAttachmentsViewPrivate *priv = NULL;
538         GList *att_view_list, *node;
539
540         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
541         att_view_list = gtk_container_get_children (GTK_CONTAINER (priv->box));
542         
543         for (node = att_view_list; node != NULL; node = g_list_next (node)) {
544                 GtkWidget *att_view = (GtkWidget *) node->data;
545
546                 if (GTK_WIDGET_STATE (att_view) == GTK_STATE_SELECTED)
547                         gtk_widget_set_state (att_view, GTK_STATE_NORMAL);
548         }
549
550         g_list_free (priv->selected);
551         priv->selected = NULL;
552
553         g_list_free (att_view_list);
554 }
555
556 static void 
557 set_selected (ModestAttachmentsView *atts_view, ModestAttachmentView *att_view)
558 {
559         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
560
561         unselect_all (atts_view);
562         gtk_widget_set_state (GTK_WIDGET (att_view), GTK_STATE_SELECTED);
563         g_list_free (priv->selected);
564         priv->selected = NULL;
565         priv->selected = g_list_append (priv->selected, att_view);
566         
567         own_clipboard (atts_view);
568 }
569
570 static void 
571 select_range (ModestAttachmentsView *atts_view, ModestAttachmentView *att1, ModestAttachmentView *att2)
572 {
573         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
574         GList *children = NULL;
575         GList *node = NULL;
576         gboolean selecting = FALSE;
577
578         unselect_all (atts_view);
579
580         if (att1 == att2) {
581                 set_selected (atts_view, att1);
582                 return;
583         }
584
585         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
586         g_list_free (priv->selected);
587         priv->selected = NULL;
588
589
590         for (node = children; node != NULL; node = g_list_next (node)) {
591                 if ((node->data == att1) || (node->data == att2)) {
592                         gtk_widget_set_state (GTK_WIDGET (node->data), GTK_STATE_SELECTED);
593                         priv->selected = g_list_append (priv->selected, node->data);
594                         selecting = !selecting;
595                 } else if (selecting) {
596                         gtk_widget_set_state (GTK_WIDGET (node->data), GTK_STATE_SELECTED);
597                         priv->selected = g_list_append (priv->selected, node->data);
598                 }
599                         
600         }
601         g_list_free (children);
602         
603         own_clipboard (atts_view);
604 }
605
606 static void clipboard_get (GtkClipboard *clipboard, GtkSelectionData *selection_data,
607                            guint info, gpointer userdata)
608 {
609         ModestAttachmentsView *atts_view = (ModestAttachmentsView *) userdata;
610         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
611
612         if ((priv->selected != NULL)&&(priv->selected->next == NULL)) {
613                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (priv->selected->data));
614                 if (info != MODEST_ATTACHMENTS_VIEW_CLIPBOARD_TYPE_INDEX) {
615                         if (TNY_IS_MSG (mime_part)) {
616                                 TnyHeader *header = tny_msg_get_header (TNY_MSG (mime_part));
617                                 if (TNY_IS_HEADER (header)) {
618                                         gtk_selection_data_set_text (selection_data, tny_header_get_subject (header), -1);
619                                         g_object_unref (header);
620                                 }
621                         } else {
622                                 gtk_selection_data_set_text (selection_data, tny_mime_part_get_filename (mime_part), -1);
623                         }
624                 } else {
625                         /* MODEST_ATTACHMENT requested. As the content id is not filled in all the case, we'll
626                          * use an internal index. This index is simply the index of the attachment in the vbox */
627                         GList *box_children = NULL;
628                         gint index;
629                         box_children = gtk_container_get_children (GTK_CONTAINER (priv->box));
630                         index = g_list_index (box_children, priv->selected);
631                         if (index >= 0) {
632                                 gchar *index_str = g_strdup_printf("%d", index);
633                                 gtk_selection_data_set_text (selection_data, index_str, -1);
634                                 g_free (index_str);
635                         }
636                 }
637         }
638 }
639
640 static void clipboard_clear (GtkClipboard *clipboard, gpointer userdata)
641 {
642         ModestAttachmentsView *atts_view = (ModestAttachmentsView *) userdata;
643
644         unselect_all (atts_view);
645 }
646
647 GList *
648 modest_attachments_view_get_selection (ModestAttachmentsView *atts_view)
649 {
650         ModestAttachmentsViewPrivate *priv;
651         GList *selection, *node;
652
653         g_return_val_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view), NULL);
654         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
655
656         selection = NULL;
657         for (node = priv->selected; node != NULL; node = g_list_next (node)) {
658                 ModestAttachmentView *att_view = (ModestAttachmentView *) node->data;
659                 TnyMimePart *part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
660                 selection = g_list_append (selection, part);
661         }
662         
663         return selection;
664 }
665
666 GList *
667 modest_attachments_view_get_attachments (ModestAttachmentsView *atts_view)
668 {
669         ModestAttachmentsViewPrivate *priv;
670         GList *children, *node, *att_list = NULL;
671
672         g_return_val_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view), NULL);
673         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
674
675         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
676         for (node = children; node != NULL; node = g_list_next (node)) {
677                 GtkWidget *att_view = GTK_WIDGET (node->data);
678                 TnyMimePart *mime_part = tny_mime_part_view_get_part (TNY_MIME_PART_VIEW (att_view));
679                 att_list = g_list_prepend (att_list, mime_part);
680         }
681         g_list_free (children);
682         att_list = g_list_reverse (att_list);
683         return att_list;
684
685 }
686
687 void
688 modest_attachments_view_select_all (ModestAttachmentsView *atts_view)
689 {
690         ModestAttachmentsViewPrivate *priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
691         GList *children = NULL;
692         GList *node = NULL;
693
694         unselect_all (atts_view);
695
696         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
697         g_list_free (priv->selected);
698         priv->selected = NULL;
699
700
701         for (node = children; node != NULL; node = g_list_next (node)) {
702                 gtk_widget_set_state (GTK_WIDGET (node->data), GTK_STATE_SELECTED);
703                 priv->selected = g_list_append (priv->selected, node->data);
704         }
705         g_list_free (children);
706
707         own_clipboard (atts_view);
708 }
709
710 gboolean
711 modest_attachments_view_has_attachments (ModestAttachmentsView *atts_view)
712 {
713         ModestAttachmentsViewPrivate *priv;
714         GList *children;
715         gboolean result;
716
717         g_return_val_if_fail (MODEST_IS_ATTACHMENTS_VIEW (atts_view), FALSE);
718         priv = MODEST_ATTACHMENTS_VIEW_GET_PRIVATE (atts_view);
719
720         children = gtk_container_get_children (GTK_CONTAINER (priv->box));
721         result = (children != NULL);
722         g_list_free (children);
723
724         return result;
725 }
726
727 static void
728 own_clipboard (ModestAttachmentsView *atts_view)
729 {
730         GtkTargetEntry targets[] = {
731                 {"TEXT", 0, 0},
732                 {"UTF8_STRING", 0, 1},
733                 {"COMPOUND_TEXT", 0, 2},
734                 {"STRING", 0, 3},
735                 {MODEST_ATTACHMENTS_VIEW_CLIPBOARD_TYPE, 0, MODEST_ATTACHMENTS_VIEW_CLIPBOARD_TYPE_INDEX},
736         };
737
738         gtk_clipboard_set_with_owner (gtk_widget_get_clipboard (GTK_WIDGET (atts_view), GDK_SELECTION_PRIMARY),
739                                       targets, G_N_ELEMENTS (targets),
740                                       clipboard_get, clipboard_clear, G_OBJECT(atts_view));
741                               
742 }