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-rw-r--r--e-util/e-attachment-button.c868
1 files changed, 868 insertions, 0 deletions
diff --git a/e-util/e-attachment-button.c b/e-util/e-attachment-button.c
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+++ b/e-util/e-attachment-button.c
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+/*
+ * e-attachment-button.c
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+/* Much of the popup menu logic here was ripped from GtkMenuToolButton. */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "e-attachment-button.h"
+
+#define E_ATTACHMENT_BUTTON_GET_PRIVATE(obj) \
+ (G_TYPE_INSTANCE_GET_PRIVATE \
+ ((obj), E_TYPE_ATTACHMENT_BUTTON, EAttachmentButtonPrivate))
+
+struct _EAttachmentButtonPrivate {
+
+ EAttachmentView *view;
+ EAttachment *attachment;
+ gulong reference_handler_id;
+
+ GBinding *can_show_binding;
+ GBinding *shown_binding;
+
+ GtkWidget *expand_button;
+ GtkWidget *toggle_button;
+ GtkWidget *cell_view;
+ GtkWidget *popup_menu;
+
+ guint expandable : 1;
+ guint expanded : 1;
+};
+
+enum {
+ PROP_0,
+ PROP_ATTACHMENT,
+ PROP_EXPANDABLE,
+ PROP_EXPANDED,
+ PROP_VIEW
+};
+
+G_DEFINE_TYPE (
+ EAttachmentButton,
+ e_attachment_button,
+ GTK_TYPE_HBOX)
+
+static void
+attachment_button_menu_deactivate_cb (EAttachmentButton *button)
+{
+ EAttachmentView *view;
+ GtkActionGroup *action_group;
+ GtkToggleButton *toggle_button;
+
+ view = e_attachment_button_get_view (button);
+ action_group = e_attachment_view_get_action_group (view, "inline");
+ toggle_button = GTK_TOGGLE_BUTTON (button->priv->toggle_button);
+
+ gtk_toggle_button_set_active (toggle_button, FALSE);
+
+ gtk_action_group_set_visible (action_group, FALSE);
+}
+
+static void
+attachment_button_menu_position (GtkMenu *menu,
+ gint *x,
+ gint *y,
+ gboolean *push_in,
+ EAttachmentButton *button)
+{
+ GtkRequisition menu_requisition;
+ GtkTextDirection direction;
+ GtkAllocation allocation;
+ GdkRectangle monitor;
+ GdkScreen *screen;
+ GdkWindow *window;
+ GtkWidget *widget;
+ GtkWidget *toggle_button;
+ gint monitor_num;
+
+ widget = GTK_WIDGET (button);
+ toggle_button = button->priv->toggle_button;
+ gtk_widget_get_preferred_size (GTK_WIDGET (menu), &menu_requisition, NULL);
+
+ window = gtk_widget_get_parent_window (widget);
+ screen = gtk_widget_get_screen (GTK_WIDGET (menu));
+ monitor_num = gdk_screen_get_monitor_at_window (screen, window);
+ if (monitor_num < 0)
+ monitor_num = 0;
+ gdk_screen_get_monitor_geometry (screen, monitor_num, &monitor);
+
+ gtk_widget_get_allocation (widget, &allocation);
+
+ gdk_window_get_origin (window, x, y);
+ *x += allocation.x;
+ *y += allocation.y;
+
+ direction = gtk_widget_get_direction (widget);
+ if (direction == GTK_TEXT_DIR_LTR)
+ *x += MAX (allocation.width - menu_requisition.width, 0);
+ else if (menu_requisition.width > allocation.width)
+ *x -= menu_requisition.width - allocation.width;
+
+ gtk_widget_get_allocation (toggle_button, &allocation);
+
+ if ((*y + allocation.height +
+ menu_requisition.height) <= monitor.y + monitor.height)
+ *y += allocation.height;
+ else if ((*y - menu_requisition.height) >= monitor.y)
+ *y -= menu_requisition.height;
+ else if (monitor.y + monitor.height -
+ (*y + allocation.height) > *y)
+ *y += allocation.height;
+ else
+ *y -= menu_requisition.height;
+
+ *push_in = FALSE;
+}
+
+static void
+attachment_button_select_path (EAttachmentButton *button)
+{
+ EAttachmentView *view;
+ EAttachment *attachment;
+ GtkTreeRowReference *reference;
+ GtkTreePath *path;
+
+ attachment = e_attachment_button_get_attachment (button);
+ g_return_if_fail (E_IS_ATTACHMENT (attachment));
+
+ reference = e_attachment_get_reference (attachment);
+ g_return_if_fail (gtk_tree_row_reference_valid (reference));
+
+ view = e_attachment_button_get_view (button);
+ path = gtk_tree_row_reference_get_path (reference);
+
+ e_attachment_view_unselect_all (view);
+ e_attachment_view_select_path (view, path);
+
+ gtk_tree_path_free (path);
+}
+
+static void
+attachment_button_show_popup_menu (EAttachmentButton *button,
+ GdkEventButton *event)
+{
+ EAttachmentView *view;
+ GtkActionGroup *action_group;
+ GtkToggleButton *toggle_button;
+
+ view = e_attachment_button_get_view (button);
+ action_group = e_attachment_view_get_action_group (view, "inline");
+ toggle_button = GTK_TOGGLE_BUTTON (button->priv->toggle_button);
+
+ attachment_button_select_path (button);
+ gtk_toggle_button_set_active (toggle_button, TRUE);
+
+ e_attachment_view_show_popup_menu (
+ view, event, (GtkMenuPositionFunc)
+ attachment_button_menu_position, button);
+
+ gtk_action_group_set_visible (action_group, TRUE);
+}
+
+static void
+attachment_button_update_cell_view (EAttachmentButton *button)
+{
+ GtkCellView *cell_view;
+ EAttachment *attachment;
+ GtkTreeRowReference *reference;
+ GtkTreeModel *model = NULL;
+ GtkTreePath *path = NULL;
+
+ cell_view = GTK_CELL_VIEW (button->priv->cell_view);
+
+ attachment = e_attachment_button_get_attachment (button);
+ if (attachment == NULL)
+ goto exit;
+
+ reference = e_attachment_get_reference (attachment);
+ if (reference == NULL)
+ goto exit;
+
+ model = gtk_tree_row_reference_get_model (reference);
+ path = gtk_tree_row_reference_get_path (reference);
+
+exit:
+ gtk_cell_view_set_model (cell_view, model);
+ gtk_cell_view_set_displayed_row (cell_view, path);
+
+ if (path != NULL)
+ gtk_tree_path_free (path);
+}
+
+static void
+attachment_button_update_pixbufs (EAttachmentButton *button)
+{
+ GtkCellLayout *cell_layout;
+ GtkCellRenderer *renderer;
+ GdkPixbuf *pixbuf_expander_open;
+ GdkPixbuf *pixbuf_expander_closed;
+ GList *list;
+
+ /* Grab the first cell renderer. */
+ cell_layout = GTK_CELL_LAYOUT (button->priv->cell_view);
+ list = gtk_cell_layout_get_cells (cell_layout);
+ renderer = GTK_CELL_RENDERER (list->data);
+ g_list_free (list);
+
+ pixbuf_expander_open = gtk_widget_render_icon (
+ GTK_WIDGET (button), GTK_STOCK_GO_DOWN,
+ GTK_ICON_SIZE_BUTTON, NULL);
+
+ pixbuf_expander_closed = gtk_widget_render_icon (
+ GTK_WIDGET (button), GTK_STOCK_GO_FORWARD,
+ GTK_ICON_SIZE_BUTTON, NULL);
+
+ g_object_set (
+ renderer,
+ "pixbuf-expander-open", pixbuf_expander_open,
+ "pixbuf-expander-closed", pixbuf_expander_closed,
+ NULL);
+
+ g_object_unref (pixbuf_expander_open);
+ g_object_unref (pixbuf_expander_closed);
+}
+
+static void
+attachment_button_expand_clicked_cb (EAttachmentButton *button)
+{
+ gboolean expanded;
+
+ expanded = e_attachment_button_get_expanded (button);
+ e_attachment_button_set_expanded (button, !expanded);
+}
+
+static void
+attachment_button_expand_drag_begin_cb (EAttachmentButton *button,
+ GdkDragContext *context)
+{
+ EAttachmentView *view;
+
+ view = e_attachment_button_get_view (button);
+
+ attachment_button_select_path (button);
+ e_attachment_view_drag_begin (view, context);
+}
+
+static void
+attachment_button_expand_drag_data_get_cb (EAttachmentButton *button,
+ GdkDragContext *context,
+ GtkSelectionData *selection,
+ guint info,
+ guint time)
+{
+ EAttachmentView *view;
+
+ if (button->priv->attachment) {
+ gchar *mime_type;
+
+ mime_type = e_attachment_get_mime_type (
+ button->priv->attachment);
+
+ if (mime_type) {
+ gboolean processed = FALSE;
+ GdkAtom atom;
+ gchar *atom_name;
+
+ atom = gtk_selection_data_get_target (selection);
+ atom_name = gdk_atom_name (atom);
+
+ if (g_strcmp0 (atom_name, mime_type) == 0) {
+ CamelMimePart *mime_part;
+
+ mime_part = e_attachment_get_mime_part (
+ button->priv->attachment);
+
+ if (CAMEL_IS_MIME_PART (mime_part)) {
+ CamelDataWrapper *wrapper;
+ CamelStream *stream;
+ GByteArray *buffer;
+
+ buffer = g_byte_array_new ();
+ stream = camel_stream_mem_new ();
+ camel_stream_mem_set_byte_array (
+ CAMEL_STREAM_MEM (stream),
+ buffer);
+ wrapper = camel_medium_get_content (
+ CAMEL_MEDIUM (mime_part));
+ camel_data_wrapper_decode_to_stream_sync (
+ wrapper, stream, NULL, NULL);
+ g_object_unref (stream);
+
+ gtk_selection_data_set (
+ selection, atom, 8,
+ buffer->data, buffer->len);
+ processed = TRUE;
+
+ g_byte_array_free (buffer, TRUE);
+ }
+ }
+
+ g_free (atom_name);
+ g_free (mime_type);
+
+ if (processed)
+ return;
+ }
+ }
+
+ view = e_attachment_button_get_view (button);
+
+ e_attachment_view_drag_data_get (
+ view, context, selection, info, time);
+}
+
+static void
+attachment_button_expand_drag_end_cb (EAttachmentButton *button,
+ GdkDragContext *context)
+{
+ EAttachmentView *view;
+
+ view = e_attachment_button_get_view (button);
+
+ e_attachment_view_drag_end (view, context);
+}
+
+static gboolean
+attachment_button_toggle_button_press_event_cb (EAttachmentButton *button,
+ GdkEventButton *event)
+{
+ if (event->button == 1) {
+ attachment_button_show_popup_menu (button, event);
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static void
+attachment_button_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ switch (property_id) {
+ case PROP_ATTACHMENT:
+ e_attachment_button_set_attachment (
+ E_ATTACHMENT_BUTTON (object),
+ g_value_get_object (value));
+ return;
+
+ case PROP_EXPANDABLE:
+ e_attachment_button_set_expandable (
+ E_ATTACHMENT_BUTTON (object),
+ g_value_get_boolean (value));
+ return;
+
+ case PROP_EXPANDED:
+ e_attachment_button_set_expanded (
+ E_ATTACHMENT_BUTTON (object),
+ g_value_get_boolean (value));
+ return;
+
+ case PROP_VIEW:
+ e_attachment_button_set_view (
+ E_ATTACHMENT_BUTTON (object),
+ g_value_get_object (value));
+ return;
+ }
+
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+}
+
+static void
+attachment_button_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ switch (property_id) {
+ case PROP_ATTACHMENT:
+ g_value_set_object (
+ value,
+ e_attachment_button_get_attachment (
+ E_ATTACHMENT_BUTTON (object)));
+ return;
+
+ case PROP_EXPANDABLE:
+ g_value_set_boolean (
+ value,
+ e_attachment_button_get_expandable (
+ E_ATTACHMENT_BUTTON (object)));
+ return;
+
+ case PROP_EXPANDED:
+ g_value_set_boolean (
+ value,
+ e_attachment_button_get_expanded (
+ E_ATTACHMENT_BUTTON (object)));
+ return;
+
+ case PROP_VIEW:
+ g_value_set_object (
+ value,
+ e_attachment_button_get_view (
+ E_ATTACHMENT_BUTTON (object)));
+ return;
+ }
+
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+}
+
+static void
+attachment_button_dispose (GObject *object)
+{
+ EAttachmentButtonPrivate *priv;
+
+ priv = E_ATTACHMENT_BUTTON_GET_PRIVATE (object);
+
+ if (priv->view != NULL) {
+ g_object_unref (priv->view);
+ priv->view = NULL;
+ }
+
+ if (priv->attachment != NULL) {
+ g_signal_handler_disconnect (
+ priv->attachment,
+ priv->reference_handler_id);
+ g_object_unref (priv->attachment);
+ priv->attachment = NULL;
+ }
+
+ if (priv->expand_button != NULL) {
+ g_object_unref (priv->expand_button);
+ priv->expand_button = NULL;
+ }
+
+ if (priv->toggle_button != NULL) {
+ g_object_unref (priv->toggle_button);
+ priv->toggle_button = NULL;
+ }
+
+ if (priv->cell_view != NULL) {
+ g_object_unref (priv->cell_view);
+ priv->cell_view = NULL;
+ }
+
+ if (priv->popup_menu != NULL) {
+ g_signal_handlers_disconnect_matched (
+ priv->popup_menu, G_SIGNAL_MATCH_DATA,
+ 0, 0, NULL, NULL, object);
+ g_object_unref (priv->popup_menu);
+ priv->popup_menu = NULL;
+ }
+
+ /* Chain up to parent's dispose() method. */
+ G_OBJECT_CLASS (e_attachment_button_parent_class)->dispose (object);
+}
+
+static void
+attachment_button_style_set (GtkWidget *widget,
+ GtkStyle *previous_style)
+{
+ EAttachmentButton *button;
+
+ /* Chain up to parent's style_set() method. */
+ GTK_WIDGET_CLASS (e_attachment_button_parent_class)->
+ style_set (widget, previous_style);
+
+ button = E_ATTACHMENT_BUTTON (widget);
+ attachment_button_update_pixbufs (button);
+}
+
+static void
+e_attachment_button_class_init (EAttachmentButtonClass *class)
+{
+ GObjectClass *object_class;
+ GtkWidgetClass *widget_class;
+
+ g_type_class_add_private (class, sizeof (EAttachmentButtonPrivate));
+
+ object_class = G_OBJECT_CLASS (class);
+ object_class->set_property = attachment_button_set_property;
+ object_class->get_property = attachment_button_get_property;
+ object_class->dispose = attachment_button_dispose;
+
+ widget_class = GTK_WIDGET_CLASS (class);
+ widget_class->style_set = attachment_button_style_set;
+
+ g_object_class_install_property (
+ object_class,
+ PROP_ATTACHMENT,
+ g_param_spec_object (
+ "attachment",
+ "Attachment",
+ NULL,
+ E_TYPE_ATTACHMENT,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (
+ object_class,
+ PROP_EXPANDABLE,
+ g_param_spec_boolean (
+ "expandable",
+ "Expandable",
+ NULL,
+ TRUE,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT));
+
+ g_object_class_install_property (
+ object_class,
+ PROP_EXPANDED,
+ g_param_spec_boolean (
+ "expanded",
+ "Expanded",
+ NULL,
+ FALSE,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT));
+
+ g_object_class_install_property (
+ object_class,
+ PROP_VIEW,
+ g_param_spec_object (
+ "view",
+ "View",
+ NULL,
+ E_TYPE_ATTACHMENT_VIEW,
+ G_PARAM_READWRITE));
+}
+
+static void
+e_attachment_button_init (EAttachmentButton *button)
+{
+ GtkCellRenderer *renderer;
+ GtkCellLayout *cell_layout;
+ GtkTargetEntry *targets;
+ GtkTargetList *list;
+ GtkWidget *container;
+ GtkWidget *widget;
+ GtkStyleContext *context;
+ gint n_targets;
+
+ button->priv = E_ATTACHMENT_BUTTON_GET_PRIVATE (button);
+
+ /* Configure Widgets */
+
+ container = GTK_WIDGET (button);
+ context = gtk_widget_get_style_context (container);
+ gtk_style_context_add_class (context, "linked");
+
+ widget = gtk_button_new ();
+ gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
+ button->priv->expand_button = g_object_ref (widget);
+ gtk_widget_show (widget);
+
+ g_object_bind_property (
+ button, "expandable",
+ widget, "sensitive",
+ G_BINDING_BIDIRECTIONAL |
+ G_BINDING_SYNC_CREATE);
+
+ widget = gtk_toggle_button_new ();
+ gtk_box_pack_start (GTK_BOX (container), widget, FALSE, FALSE, 0);
+ button->priv->toggle_button = g_object_ref (widget);
+ gtk_widget_show (widget);
+
+ container = button->priv->expand_button;
+
+ widget = gtk_cell_view_new ();
+ gtk_container_add (GTK_CONTAINER (container), widget);
+ button->priv->cell_view = g_object_ref (widget);
+ gtk_widget_show (widget);
+
+ container = button->priv->toggle_button;
+
+ widget = gtk_arrow_new (GTK_ARROW_DOWN, GTK_SHADOW_NONE);
+ gtk_container_add (GTK_CONTAINER (container), widget);
+ gtk_widget_show (widget);
+
+ /* Configure Renderers */
+
+ cell_layout = GTK_CELL_LAYOUT (button->priv->cell_view);
+
+ renderer = gtk_cell_renderer_pixbuf_new ();
+ g_object_set (renderer, "is-expander", TRUE, NULL);
+ gtk_cell_layout_pack_start (cell_layout, renderer, FALSE);
+
+ g_object_bind_property (
+ button, "expanded",
+ renderer, "is-expanded",
+ G_BINDING_BIDIRECTIONAL |
+ G_BINDING_SYNC_CREATE);
+
+ renderer = gtk_cell_renderer_pixbuf_new ();
+ g_object_set (renderer, "stock-size", GTK_ICON_SIZE_BUTTON, NULL);
+ gtk_cell_layout_pack_start (cell_layout, renderer, FALSE);
+
+ gtk_cell_layout_add_attribute (
+ cell_layout, renderer, "gicon",
+ E_ATTACHMENT_STORE_COLUMN_ICON);
+
+ /* Configure Drag and Drop */
+
+ list = gtk_target_list_new (NULL, 0);
+ gtk_target_list_add_uri_targets (list, 0);
+ targets = gtk_target_table_new_from_list (list, &n_targets);
+
+ gtk_drag_source_set (
+ button->priv->expand_button, GDK_BUTTON1_MASK,
+ targets, n_targets, GDK_ACTION_COPY);
+
+ gtk_drag_source_set (
+ button->priv->toggle_button, GDK_BUTTON1_MASK,
+ targets, n_targets, GDK_ACTION_COPY);
+
+ gtk_target_table_free (targets, n_targets);
+ gtk_target_list_unref (list);
+
+ /* Configure Signal Handlers */
+
+ g_signal_connect_swapped (
+ button->priv->expand_button, "clicked",
+ G_CALLBACK (attachment_button_expand_clicked_cb), button);
+
+ g_signal_connect_swapped (
+ button->priv->expand_button, "drag-begin",
+ G_CALLBACK (attachment_button_expand_drag_begin_cb),
+ button);
+
+ g_signal_connect_swapped (
+ button->priv->expand_button, "drag-data-get",
+ G_CALLBACK (attachment_button_expand_drag_data_get_cb),
+ button);
+
+ g_signal_connect_swapped (
+ button->priv->expand_button, "drag-end",
+ G_CALLBACK (attachment_button_expand_drag_end_cb),
+ button);
+
+ g_signal_connect_swapped (
+ button->priv->toggle_button, "button-press-event",
+ G_CALLBACK (attachment_button_toggle_button_press_event_cb),
+ button);
+
+ g_signal_connect_swapped (
+ button->priv->toggle_button, "drag-begin",
+ G_CALLBACK (attachment_button_expand_drag_begin_cb),
+ button);
+
+ g_signal_connect_swapped (
+ button->priv->toggle_button, "drag-data-get",
+ G_CALLBACK (attachment_button_expand_drag_data_get_cb),
+ button);
+
+ g_signal_connect_swapped (
+ button->priv->toggle_button, "drag-end",
+ G_CALLBACK (attachment_button_expand_drag_end_cb),
+ button);
+}
+
+GtkWidget *
+e_attachment_button_new ()
+{
+ return g_object_new (
+ E_TYPE_ATTACHMENT_BUTTON, NULL);
+}
+
+EAttachmentView *
+e_attachment_button_get_view (EAttachmentButton *button)
+{
+ g_return_val_if_fail (E_IS_ATTACHMENT_BUTTON (button), NULL);
+
+ return button->priv->view;
+}
+
+void
+e_attachment_button_set_view (EAttachmentButton *button,
+ EAttachmentView *view)
+{
+ GtkWidget *popup_menu;
+
+ g_return_if_fail (button->priv->view == NULL);
+
+ g_object_ref (view);
+ if (button->priv->view)
+ g_object_unref (button->priv->view);
+ button->priv->view = view;
+
+ popup_menu = e_attachment_view_get_popup_menu (view);
+
+ g_signal_connect_swapped (
+ popup_menu, "deactivate",
+ G_CALLBACK (attachment_button_menu_deactivate_cb), button);
+
+ /* Keep a reference to the popup menu so we can
+ * disconnect the signal handler in dispose(). */
+ if (button->priv->popup_menu)
+ g_object_unref (button->priv->popup_menu);
+ button->priv->popup_menu = g_object_ref (popup_menu);
+}
+
+EAttachment *
+e_attachment_button_get_attachment (EAttachmentButton *button)
+{
+ g_return_val_if_fail (E_IS_ATTACHMENT_BUTTON (button), NULL);
+
+ return button->priv->attachment;
+}
+
+void
+e_attachment_button_set_attachment (EAttachmentButton *button,
+ EAttachment *attachment)
+{
+ GtkTargetEntry *targets;
+ GtkTargetList *list;
+ gint n_targets;
+
+ g_return_if_fail (E_IS_ATTACHMENT_BUTTON (button));
+
+ if (attachment != NULL) {
+ g_return_if_fail (E_IS_ATTACHMENT (attachment));
+ g_object_ref (attachment);
+ }
+
+ if (button->priv->attachment != NULL) {
+ g_object_unref (button->priv->can_show_binding);
+ button->priv->can_show_binding = NULL;
+ g_object_unref (button->priv->shown_binding);
+ button->priv->shown_binding = NULL;
+ g_signal_handler_disconnect (
+ button->priv->attachment,
+ button->priv->reference_handler_id);
+ g_object_unref (button->priv->attachment);
+ }
+
+ button->priv->attachment = attachment;
+
+ if (attachment != NULL) {
+ GBinding *binding;
+ gulong handler_id;
+
+ binding = g_object_bind_property (
+ attachment, "can-show",
+ button, "expandable",
+ G_BINDING_BIDIRECTIONAL |
+ G_BINDING_SYNC_CREATE);
+ button->priv->can_show_binding = binding;
+
+ binding = g_object_bind_property (
+ attachment, "shown",
+ button, "expanded",
+ G_BINDING_BIDIRECTIONAL |
+ G_BINDING_SYNC_CREATE);
+ button->priv->shown_binding = binding;
+
+ handler_id = g_signal_connect_swapped (
+ attachment, "notify::reference",
+ G_CALLBACK (attachment_button_update_cell_view),
+ button);
+ button->priv->reference_handler_id = handler_id;
+
+ attachment_button_update_cell_view (button);
+ attachment_button_update_pixbufs (button);
+ }
+
+ /* update drag sources */
+ list = gtk_target_list_new (NULL, 0);
+ gtk_target_list_add_uri_targets (list, 0);
+
+ if (attachment) {
+ gchar *simple_type;
+
+ simple_type = e_attachment_get_mime_type (attachment);
+ if (simple_type) {
+ GtkTargetEntry attach_entry[] = { { NULL, 0, 2 } };
+
+ attach_entry[0].target = simple_type;
+
+ gtk_target_list_add_table (
+ list, attach_entry,
+ G_N_ELEMENTS (attach_entry));
+
+ g_free (simple_type);
+ }
+ }
+
+ targets = gtk_target_table_new_from_list (list, &n_targets);
+
+ gtk_drag_source_set (
+ button->priv->expand_button, GDK_BUTTON1_MASK,
+ targets, n_targets, GDK_ACTION_COPY);
+
+ gtk_drag_source_set (
+ button->priv->toggle_button, GDK_BUTTON1_MASK,
+ targets, n_targets, GDK_ACTION_COPY);
+
+ gtk_target_table_free (targets, n_targets);
+ gtk_target_list_unref (list);
+
+ g_object_notify (G_OBJECT (button), "attachment");
+}
+
+gboolean
+e_attachment_button_get_expandable (EAttachmentButton *button)
+{
+ g_return_val_if_fail (E_IS_ATTACHMENT_BUTTON (button), FALSE);
+
+ return button->priv->expandable;
+}
+
+void
+e_attachment_button_set_expandable (EAttachmentButton *button,
+ gboolean expandable)
+{
+ g_return_if_fail (E_IS_ATTACHMENT_BUTTON (button));
+
+ if (button->priv->expandable == expandable)
+ return;
+
+ button->priv->expandable = expandable;
+
+ if (!expandable)
+ e_attachment_button_set_expanded (button, FALSE);
+
+ g_object_notify (G_OBJECT (button), "expandable");
+}
+
+gboolean
+e_attachment_button_get_expanded (EAttachmentButton *button)
+{
+ g_return_val_if_fail (E_IS_ATTACHMENT_BUTTON (button), FALSE);
+
+ return button->priv->expanded;
+}
+
+void
+e_attachment_button_set_expanded (EAttachmentButton *button,
+ gboolean expanded)
+{
+ g_return_if_fail (E_IS_ATTACHMENT_BUTTON (button));
+
+ if (button->priv->expanded == expanded)
+ return;
+
+ button->priv->expanded = expanded;
+
+ g_object_notify (G_OBJECT (button), "expanded");
+}