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1 /*
2 * e-attachment-button.c
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) version 3.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with the program; if not, see <http://www.gnu.org/licenses/>
16 *
17 *
18 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
19 *
20 */
21
22 /* Much of the popup menu logic here was ripped from GtkMenuToolButton. */
23
24 #ifdef HAVE_CONFIG_H
25 #include <config.h>
26 #endif
27
28 #include "e-attachment-button.h"
29
30 #define E_ATTACHMENT_BUTTON_GET_PRIVATE(obj) \
31 (G_TYPE_INSTANCE_GET_PRIVATE \
32 ((obj), E_TYPE_ATTACHMENT_BUTTON, EAttachmentButtonPrivate))
33
34 struct _EAttachmentButtonPrivate {
35
36 EAttachmentView *view;
37 EAttachment *attachment;
38 gulong reference_handler_id;
39
40 GBinding *can_show_binding;
41 GBinding *shown_binding;
42
43 GtkWidget *expand_button;
44 GtkWidget *toggle_button;
45 GtkWidget *cell_view;
46 GtkWidget *popup_menu;
47
48 guint expandable : 1;
49 guint expanded : 1;
50 };
51
52 enum {
53 PROP_0,
54 PROP_ATTACHMENT,
55 PROP_EXPANDABLE,
56 PROP_EXPANDED,
57 PROP_VIEW
58 };
59
60 G_DEFINE_TYPE (
61 EAttachmentButton,
62 e_attachment_button,
63 GTK_TYPE_HBOX)
64
65 static void
66 attachment_button_menu_deactivate_cb (EAttachmentButton *button)
67 {
68 EAttachmentView *view;
69 GtkActionGroup *action_group;
70 GtkToggleButton *toggle_button;
71
72 view = e_attachment_button_get_view (button);
73 action_group = e_attachment_view_get_action_group (view, "inline");
74 toggle_button = GTK_TOGGLE_BUTTON (button->priv->toggle_button);
75
76 gtk_toggle_button_set_active (toggle_button, FALSE);
77
78 gtk_action_group_set_visible (action_group, FALSE);
79 }
80
81 static void
82 attachment_button_menu_position (GtkMenu *menu,
83 gint *x,
84 gint *y,
85 gboolean *push_in,
86 EAttachmentButton *button)
87 {
88 GtkRequisition menu_requisition;
89 GtkTextDirection direction;
90 GtkAllocation allocation;
91 GdkRectangle monitor;
92 GdkScreen *screen;
93 GdkWindow *window;
94 GtkWidget *widget;
95 GtkWidget *toggle_button;
96 gint monitor_num;
97
98 widget = GTK_WIDGET (button);
99 toggle_button = button->priv->toggle_button;
100 gtk_widget_get_preferred_size (GTK_WIDGET (menu), &menu_requisition, NULL);
101
102 window = gtk_widget_get_parent_window (widget);
103 screen = gtk_widget_get_screen (GTK_WIDGET (menu));
104 monitor_num = gdk_screen_get_monitor_at_window (screen, window);
105 if (monitor_num < 0)
106 monitor_num = 0;
107 gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
108
109 gtk_widget_get_allocation (widget, &allocation);
110
111 gdk_window_get_origin (window, x, y);
112 *x += allocation.x;
113 *y += allocation.y;
114
115 direction = gtk_widget_get_direction (widget);
116 if (direction == GTK_TEXT_DIR_LTR)
117 *x += MAX (allocation.width - menu_requisition.width, 0);
118 else if (menu_requisition.width > allocation.width)
119 *x -= menu_requisition.width - allocation.width;
120
121 gtk_widget_get_allocation (toggle_button, &allocation);
122
123 if ((*y + allocation.height +
124 menu_requisition.height) <= monitor.y + monitor.height)
125 *y += allocation.height;
126 else if ((*y - menu_requisition.height) >= monitor.y)
127 *y -= menu_requisition.height;
128 else if (monitor.y + monitor.height -
129 (*y + allocation.height) > *y)
130 *y += allocation.height;
131 else
132 *y -= menu_requisition.height;
133
134 *push_in = FALSE;
135 }
136
137 static void
138 attachment_button_select_path (EAttachmentButton *button)
139 {
140 EAttachmentView *view;
141 EAttachment *attachment;
142 GtkTreeRowReference *reference;
143 GtkTreePath *path;
144
145 attachment = e_attachment_button_get_attachment (button);
146 g_return_if_fail (E_IS_ATTACHMENT (attachment));
147
148 reference = e_attachment_get_reference (attachment);
149 g_return_if_fail (gtk_tree_row_reference_valid (reference));
150
151 view = e_attachment_button_get_view (button);
152 path = gtk_tree_row_reference_get_path (reference);
153
154 e_attachment_view_unselect_all (view);
155 e_attachment_view_select_path (view, path);
156
157 gtk_tree_path_free (path);
158 }
159
160 static void
161 attachment_button_show_popup_menu (EAttachmentButton *button,
162 GdkEventButton *event)
163 {
164 EAttachmentView *view;
165 GtkActionGroup *action_group;
166 GtkToggleButton *toggle_button;
167
168 view = e_attachment_button_get_view (button);
169 action_group = e_attachment_view_get_action_group (view, "inline");
170 toggle_button = GTK_TOGGLE_BUTTON (button->priv->toggle_button);
171
172 attachment_button_select_path (button);
173 gtk_toggle_button_set_active (toggle_button, TRUE);
174
175 e_attachment_view_show_popup_menu (
176 view, event, (GtkMenuPositionFunc)
177 attachment_button_menu_position, button);
178
179 gtk_action_group_set_visible (action_group, TRUE);
180 }
181
182 static void
183 attachment_button_update_cell_view (EAttachmentButton *button)
184 {
185 GtkCellView *cell_view;
186 EAttachment *attachment;
187 GtkTreeRowReference *reference;
188 GtkTreeModel *model = NULL;
189 GtkTreePath *path = NULL;
190
191 cell_view = GTK_CELL_VIEW (button->priv->cell_view);
192
193 attachment = e_attachment_button_get_attachment (button);
194 if (attachment == NULL)
195 goto exit;
196
197 reference = e_attachment_get_reference (attachment);
198 if (reference == NULL)
199 goto exit;
200
201 model = gtk_tree_row_reference_get_model (reference);
202 path = gtk_tree_row_reference_get_path (reference);
203
204 exit:
205 gtk_cell_view_set_model (cell_view, model);
206 gtk_cell_view_set_displayed_row (cell_view, path);
207
208 if (path != NULL)
209 gtk_tree_path_free (path);
210 }
211
212 static void
213 attachment_button_update_pixbufs (EAttachmentButton *button)
214 {
215 GtkCellLayout *cell_layout;
216 GtkCellRenderer *renderer;
217 GdkPixbuf *pixbuf_expander_open;
218 GdkPixbuf *pixbuf_expander_closed;
219 GList *list;
220
221 /* Grab the first cell renderer. */
222 cell_layout = GTK_CELL_LAYOUT (button->priv->cell_view);
223 list = gtk_cell_layout_get_cells (cell_layout);
224 renderer = GTK_CELL_RENDERER (list->data);
225 g_list_free (list);
226
227 pixbuf_expander_open = gtk_widget_render_icon (
228 GTK_WIDGET (button), GTK_STOCK_GO_DOWN,
229 GTK_ICON_SIZE_BUTTON, NULL);
230
231 pixbuf_expander_closed = gtk_widget_render_icon (
232 GTK_WIDGET (button), GTK_STOCK_GO_FORWARD,
233 GTK_ICON_SIZE_BUTTON, NULL);
234
235 g_object_set (
236 renderer,
237 "pixbuf-expander-open", pixbuf_expander_open,
238 "pixbuf-expander-closed", pixbuf_expander_closed,
239 NULL);
240
241 g_object_unref (pixbuf_expander_open);
242 g_object_unref (pixbuf_expander_closed);
243 }
244
245 static void
246 attachment_button_expand_clicked_cb (EAttachmentButton *button)
247 {
248 gboolean expanded;
249
250 expanded = e_attachment_button_get_expanded (button);
251 e_attachment_button_set_expanded (button, !expanded);
252 }
253
254 static void
255 attachment_button_expand_drag_begin_cb (EAttachmentButton *button,
256 GdkDragContext *context)
257 {
258 EAttachmentView *view;
259
260 view = e_attachment_button_get_view (button);
261
262 attachment_button_select_path (button);
263 e_attachment_view_drag_begin (view, context);
264 }
265
266 static void
267 attachment_button_expand_drag_data_get_cb (EAttachmentButton *button,
268 GdkDragContext *context,
269 GtkSelectionData *selection,
270 guint info,
271 guint time)
272 {
273 EAttachmentView *view;
274
275 if (button->priv->attachment) {
276 gchar *mime_type;
277
278 mime_type = e_attachment_get_mime_type (
279 button->priv->attachment);
280
281 if (mime_type) {
282 gboolean processed = FALSE;
283 GdkAtom atom;
284 gchar *atom_name;
285
286 atom = gtk_selection_data_get_target (selection);
287 atom_name = gdk_atom_name (atom);
288
289 if (g_strcmp0 (atom_name, mime_type) == 0) {
290 CamelMimePart *mime_part;
291
292 mime_part = e_attachment_get_mime_part (
293 button->priv->attachment);
294
295 if (CAMEL_IS_MIME_PART (mime_part)) {
296 CamelDataWrapper *wrapper;
297 CamelStream *stream;
298 GByteArray *buffer;
299
300 buffer = g_byte_array_new ();
301 stream = camel_stream_mem_new ();
302 camel_stream_mem_set_byte_array (
303 CAMEL_STREAM_MEM (stream),
304 buffer);
305 wrapper = camel_medium_get_content (
306 CAMEL_MEDIUM (mime_part));
307 camel_data_wrapper_decode_to_stream_sync (
308 wrapper, stream, NULL, NULL);
309 g_object_unref (stream);
310
311 gtk_selection_data_set (
312 selection, atom, 8,
313 buffer->data, buffer->len);
314 processed = TRUE;
315
316 g_byte_array_free (buffer, TRUE);
317 }
318 }
319
320 g_free (atom_name);
321 g_free (mime_type);
322
323 if (processed)
324 return;
325 }
326 }
327
328 view = e_attachment_button_get_view (button);
329
330 e_attachment_view_drag_data_get (
331 view, context, selection, info, time);
332 }
333
334 static void
335 attachment_button_expand_drag_end_cb (EAttachmentButton *button,
336 GdkDragContext *context)
337 {
338 EAttachmentView *view;
339
340 view = e_attachment_button_get_view (button);
341
342 e_attachment_view_drag_end (view, context);
343 }
344
345 static gboolean
346 attachment_button_toggle_button_press_event_cb (EAttachmentButton *button,
347 GdkEventButton *event)
348 {
349 if (event->button == 1) {
350 attachment_button_show_popup_menu (button, event);
351 return TRUE;
352 }
353
354 return FALSE;
355 }
356
357 static void
358 attachment_button_set_property (GObject *object,
359 guint property_id,
360 const GValue *value,
361 GParamSpec *pspec)
362 {
363 switch (property_id) {
364 case PROP_ATTACHMENT:
365 e_attachment_button_set_attachment (
366 E_ATTACHMENT_BUTTON (object),
367 g_value_get_object (value));
368 return;
369
370 case PROP_EXPANDABLE:
371 e_attachment_button_set_expandable (
372 E_ATTACHMENT_BUTTON (object),
373 g_value_get_boolean (value));
374 return;
375
376 case PROP_EXPANDED:
377 e_attachment_button_set_expanded (
378 E_ATTACHMENT_BUTTON (object),
379 g_value_get_boolean (value));
380 return;
381
382 case PROP_VIEW:
383 e_attachment_button_set_view (
384 E_ATTACHMENT_BUTTON (object),
385 g_value_get_object (value));
386 return;
387 }
388
389 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
390 }
391
392 static void
393 attachment_button_get_property (GObject *object,
394 guint property_id,
395 GValue *value,
396 GParamSpec *pspec)
397 {
398 switch (property_id) {
399 case PROP_ATTACHMENT:
400 g_value_set_object (
401 value,
402 e_attachment_button_get_attachment (
403 E_ATTACHMENT_BUTTON (object)));
404 return;
405
406 case PROP_EXPANDABLE:
407 g_value_set_boolean (
408 value,
409 e_attachment_button_get_expandable (
410 E_ATTACHMENT_BUTTON (object)));
411 return;
412
413 case PROP_EXPANDED:
414 g_value_set_boolean (
415 value,
416 e_attachment_button_get_expanded (
417 E_ATTACHMENT_BUTTON (object)));
418 return;
419
420 case PROP_VIEW:
421 g_value_set_object (
422 value,
423 e_attachment_button_get_view (
424 E_ATTACHMENT_BUTTON (object)));
425 return;
426 }
427
428 G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
429 }
430
431 static void
432 attachment_button_dispose (GObject *object)
433 {
434 EAttachmentButtonPrivate *priv;
435
436 priv = E_ATTACHMENT_BUTTON_GET_PRIVATE (object);
437
438 if (priv->view != NULL) {
439 g_object_unref (priv->view);
440 priv->view = NULL;
441 }
442
443 if (priv->attachment != NULL) {
444 g_signal_handler_disconnect (
445 priv->attachment,
446 priv->reference_handler_id);
447 g_object_unref (priv->attachment);
448 priv->attachment = NULL;
449 }
450
451 if (priv->expand_button != NULL) {
452 g_object_unref (priv->expand_button);
453 priv->expand_button = NULL;
454 }
455
456 if (priv->toggle_button != NULL) {
457 g_object_unref (priv->toggle_button);
458 priv->toggle_button = NULL;
459 }
460
461 if (priv->cell_view != NULL) {
462 g_object_unref (priv->cell_view);
463 priv->cell_view = NULL;
464 }
465
466 if (priv->popup_menu != NULL) {
467 g_signal_handlers_disconnect_matched (
468 priv->popup_menu, G_SIGNAL_MATCH_DATA,
469 0, 0, NULL, NULL, object);
470 g_object_unref (priv->popup_menu);
471 priv->popup_menu = NULL;
472 }
473
474 /* Chain up to parent's dispose() method. */
475 G_OBJECT_CLASS (e_attachment_button_parent_class)->dispose (object);
476 }
477
478 static void
479 attachment_button_style_set (GtkWidget *widget,
480 GtkStyle *previous_style)
481 {
482 EAttachmentButton *button;
483
484 /* Chain up to parent's style_set() method. */
485 GTK_WIDGET_CLASS (e_attachment_button_parent_class)->
486 style_set (widget, previous_style);
487
488 button = E_ATTACHMENT_BUTTON (widget);
489 attachment_button_update_pixbufs (button);
490 }
491
492 static void
493 e_attachment_button_class_init (EAttachmentButtonClass *class)
494 {
495 GObjectClass *object_class;
496 GtkWidgetClass *widget_class;
497
498 g_type_class_add_private (class, sizeof (EAttachmentButtonPrivate));
499
500 object_class = G_OBJECT_CLASS (class);
501 object_class->set_property = attachment_button_set_property;
502 object_class->get_property = attachment_button_get_property;
503 object_class->dispose = attachment_button_dispose;
504
505 widget_class = GTK_WIDGET_CLASS (class);
506 widget_class->style_set = attachment_button_style_set;
507
508 g_object_class_install_property (
509 object_class,
510 PROP_ATTACHMENT,
511 g_param_spec_object (
512 "attachment",
513 "Attachment",
514 NULL,
515 E_TYPE_ATTACHMENT,
516 G_PARAM_READWRITE));
517
518 g_object_class_install_property (
519 object_class,
520 PROP_EXPANDABLE,
521 g_param_spec_boolean (
522 "expandable",
523 "Expandable",
524 NULL,
525 TRUE,
526 G_PARAM_READWRITE |
527 G_PARAM_CONSTRUCT));
528
529 g_object_class_install_property (
530 object_class,
531 PROP_EXPANDED,
532 g_param_spec_boolean (
533 "expanded",
534 "Expanded",
535 NULL,
536 FALSE,
537 G_PARAM_READWRITE |
538 G_PARAM_CONSTRUCT));
539
540 g_object_class_install_property (
541 object_class,
542 PROP_VIEW,
543 g_param_spec_object (
544 "view",
545 "View",
546 NULL,
547 E_TYPE_ATTACHMENT_VIEW,
548 G_PARAM_READWRITE));
549 }
550
551 static void
552 e_attachment_button_init (EAttachmentButton *button)
553 {
554 GtkCellRenderer *renderer;
555 GtkCellLayout *cell_layout;
556 GtkTargetEntry *targets;
557 GtkTargetList *list;
558 GtkWidget *container;
559 GtkWidget *widget;
560 GtkStyleContext *context;
561 gint n_targets;
562
563 button->priv = E_ATTACHMENT_BUTTON_GET_PRIVATE (button);
564
565 /* Configure Widgets */
566
567 container = GTK_WIDGET (button);
568 context = gtk_widget_get_style_context (container);
569 gtk_style_context_add_class (context, "linked");
570
571 widget = gtk_button_new ();
572 gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
573 button->priv->expand_button = g_object_ref (widget);
574 gtk_widget_show (widget);
575
576 g_object_bind_property (
577 button, "expandable",
578 widget, "sensitive",
579 G_BINDING_BIDIRECTIONAL |
580 G_BINDING_SYNC_CREATE);
581
582 widget = gtk_toggle_button_new ();
583 gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
584 button->priv->toggle_button = g_object_ref (widget);
585 gtk_widget_show (widget);
586
587 container = button->priv->expand_button;
588
589 widget = gtk_cell_view_new ();
590 gtk_container_add (GTK_CONTAINER (container), widget);
591 button->priv->cell_view = g_object_ref (widget);
592 gtk_widget_show (widget);
593
594 container = button->priv->toggle_button;
595
596 widget = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
597 gtk_container_add (GTK_CONTAINER (container), widget);
598 gtk_widget_show (widget);
599
600 /* Configure Renderers */
601
602 cell_layout = GTK_CELL_LAYOUT (button->priv->cell_view);
603
604 renderer = gtk_cell_renderer_pixbuf_new ();
605 g_object_set (renderer, "is-expander", TRUE, NULL);
606 gtk_cell_layout_pack_start (cell_layout, renderer, FALSE);
607
608 g_object_bind_property (
609 button, "expanded",
610 renderer, "is-expanded",
611 G_BINDING_BIDIRECTIONAL |
612 G_BINDING_SYNC_CREATE);
613
614 renderer = gtk_cell_renderer_pixbuf_new ();
615 g_object_set (renderer, "stock-size", GTK_ICON_SIZE_BUTTON, NULL);
616 gtk_cell_layout_pack_start (cell_layout, renderer, FALSE);
617
618 gtk_cell_layout_add_attribute (
619 cell_layout, renderer, "gicon",
620 E_ATTACHMENT_STORE_COLUMN_ICON);
621
622 /* Configure Drag and Drop */
623
624 list = gtk_target_list_new (NULL, 0);
625 gtk_target_list_add_uri_targets (list, 0);
626 targets = gtk_target_table_new_from_list (list, &n_targets);
627
628 gtk_drag_source_set (
629 button->priv->expand_button, GDK_BUTTON1_MASK,
630 targets, n_targets, GDK_ACTION_COPY);
631
632 gtk_drag_source_set (
633 button->priv->toggle_button, GDK_BUTTON1_MASK,
634 targets, n_targets, GDK_ACTION_COPY);
635
636 gtk_target_table_free (targets, n_targets);
637 gtk_target_list_unref (list);
638
639 /* Configure Signal Handlers */
640
641 g_signal_connect_swapped (
642 button->priv->expand_button, "clicked",
643 G_CALLBACK (attachment_button_expand_clicked_cb), button);
644
645 g_signal_connect_swapped (
646 button->priv->expand_button, "drag-begin",
647 G_CALLBACK (attachment_button_expand_drag_begin_cb),
648 button);
649
650 g_signal_connect_swapped (
651 button->priv->expand_button, "drag-data-get",
652 G_CALLBACK (attachment_button_expand_drag_data_get_cb),
653 button);
654
655 g_signal_connect_swapped (
656 button->priv->expand_button, "drag-end",
657 G_CALLBACK (attachment_button_expand_drag_end_cb),
658 button);
659
660 g_signal_connect_swapped (
661 button->priv->toggle_button, "button-press-event",
662 G_CALLBACK (attachment_button_toggle_button_press_event_cb),
663 button);
664
665 g_signal_connect_swapped (
666 button->priv->toggle_button, "drag-begin",
667 G_CALLBACK (attachment_button_expand_drag_begin_cb),
668 button);
669
670 g_signal_connect_swapped (
671 button->priv->toggle_button, "drag-data-get",
672 G_CALLBACK (attachment_button_expand_drag_data_get_cb),
673 button);
674
675 g_signal_connect_swapped (
676 button->priv->toggle_button, "drag-end",
677 G_CALLBACK (attachment_button_expand_drag_end_cb),
678 button);
679 }
680
681 GtkWidget *
682 e_attachment_button_new ()
683 {
684 return g_object_new (
685 E_TYPE_ATTACHMENT_BUTTON, NULL);
686 }
687
688 EAttachmentView *
689 e_attachment_button_get_view (EAttachmentButton *button)
690 {
691 g_return_val_if_fail (E_IS_ATTACHMENT_BUTTON (button), NULL);
692
693 return button->priv->view;
694 }
695
696 void
697 e_attachment_button_set_view (EAttachmentButton *button,
698 EAttachmentView *view)
699 {
700 GtkWidget *popup_menu;
701
702 g_return_if_fail (button->priv->view == NULL);
703
704 g_object_ref (view);
705 if (button->priv->view)
706 g_object_unref (button->priv->view);
707 button->priv->view = view;
708
709 popup_menu = e_attachment_view_get_popup_menu (view);
710
711 g_signal_connect_swapped (
712 popup_menu, "deactivate",
713 G_CALLBACK (attachment_button_menu_deactivate_cb), button);
714
715 /* Keep a reference to the popup menu so we can
716 * disconnect the signal handler in dispose(). */
717 if (button->priv->popup_menu)
718 g_object_unref (button->priv->popup_menu);
719 button->priv->popup_menu = g_object_ref (popup_menu);
720 }
721
722 EAttachment *
723 e_attachment_button_get_attachment (EAttachmentButton *button)
724 {
725 g_return_val_if_fail (E_IS_ATTACHMENT_BUTTON (button), NULL);
726
727 return button->priv->attachment;
728 }
729
730 void
731 e_attachment_button_set_attachment (EAttachmentButton *button,
732 EAttachment *attachment)
733 {
734 GtkTargetEntry *targets;
735 GtkTargetList *list;
736 gint n_targets;
737
738 g_return_if_fail (E_IS_ATTACHMENT_BUTTON (button));
739
740 if (attachment != NULL) {
741 g_return_if_fail (E_IS_ATTACHMENT (attachment));
742 g_object_ref (attachment);
743 }
744
745 if (button->priv->attachment != NULL) {
746 g_object_unref (button->priv->can_show_binding);
747 button->priv->can_show_binding = NULL;
748 g_object_unref (button->priv->shown_binding);
749 button->priv->shown_binding = NULL;
750 g_signal_handler_disconnect (
751 button->priv->attachment,
752 button->priv->reference_handler_id);
753 g_object_unref (button->priv->attachment);
754 }
755
756 button->priv->attachment = attachment;
757
758 if (attachment != NULL) {
759 GBinding *binding;
760 gulong handler_id;
761
762 binding = g_object_bind_property (
763 attachment, "can-show",
764 button, "expandable",
765 G_BINDING_BIDIRECTIONAL |
766 G_BINDING_SYNC_CREATE);
767 button->priv->can_show_binding = binding;
768
769 binding = g_object_bind_property (
770 attachment, "shown",
771 button, "expanded",
772 G_BINDING_BIDIRECTIONAL |
773 G_BINDING_SYNC_CREATE);
774 button->priv->shown_binding = binding;
775
776 handler_id = g_signal_connect_swapped (
777 attachment, "notify::reference",
778 G_CALLBACK (attachment_button_update_cell_view),
779 button);
780 button->priv->reference_handler_id = handler_id;
781
782 attachment_button_update_cell_view (button);
783 attachment_button_update_pixbufs (button);
784 }
785
786 /* update drag sources */
787 list = gtk_target_list_new (NULL, 0);
788 gtk_target_list_add_uri_targets (list, 0);
789
790 if (attachment) {
791 gchar *simple_type;
792
793 simple_type = e_attachment_get_mime_type (attachment);
794 if (simple_type) {
795 GtkTargetEntry attach_entry[] = { { NULL, 0, 2 } };
796
797 attach_entry[0].target = simple_type;
798
799 gtk_target_list_add_table (
800 list, attach_entry,
801 G_N_ELEMENTS (attach_entry));
802
803 g_free (simple_type);
804 }
805 }
806
807 targets = gtk_target_table_new_from_list (list, &n_targets);
808
809 gtk_drag_source_set (
810 button->priv->expand_button, GDK_BUTTON1_MASK,
811 targets, n_targets, GDK_ACTION_COPY);
812
813 gtk_drag_source_set (
814 button->priv->toggle_button, GDK_BUTTON1_MASK,
815 targets, n_targets, GDK_ACTION_COPY);
816
817 gtk_target_table_free (targets, n_targets);
818 gtk_target_list_unref (list);
819
820 g_object_notify (G_OBJECT (button), "attachment");
821 }
822
823 gboolean
824 e_attachment_button_get_expandable (EAttachmentButton *button)
825 {
826 g_return_val_if_fail (E_IS_ATTACHMENT_BUTTON (button), FALSE);
827
828 return button->priv->expandable;
829 }
830
831 void
832 e_attachment_button_set_expandable (EAttachmentButton *button,
833 gboolean expandable)
834 {
835 g_return_if_fail (E_IS_ATTACHMENT_BUTTON (button));
836
837 if (button->priv->expandable == expandable)
838 return;
839
840 button->priv->expandable = expandable;
841
842 if (!expandable)
843 e_attachment_button_set_expanded (button, FALSE);
844
845 g_object_notify (G_OBJECT (button), "expandable");
846 }
847
848 gboolean
849 e_attachment_button_get_expanded (EAttachmentButton *button)
850 {
851 g_return_val_if_fail (E_IS_ATTACHMENT_BUTTON (button), FALSE);
852
853 return button->priv->expanded;
854 }
855
856 void
857 e_attachment_button_set_expanded (EAttachmentButton *button,
858 gboolean expanded)
859 {
860 g_return_if_fail (E_IS_ATTACHMENT_BUTTON (button));
861
862 if (button->priv->expanded == expanded)
863 return;
864
865 button->priv->expanded = expanded;
866
867 g_object_notify (G_OBJECT (button), "expanded");
868 }