Add DnD support to e-selection.c.

Avoid listing calendar and directory targets explicitly, so that
e-selection.c contains the one and only master list.  Still need
to figure out how to centralize "text/x-source-vcard".

2 files changed, 117 insertions, 0 deletions

diff --git a/e-util/e-selection.c b/e-util/e-selection.c
index 21c63023f0..8be4c0b55a 100644
--- a/e-util/e-selection.c
+++ b/e-util/e-selection.c
@@ -797,3 +797,105 @@ e_clipboard_wait_is_html_available (GtkClipboard *clipboard)
 
 	return result;
 }
+
+void
+e_drag_dest_add_calendar_targets (GtkWidget *widget)
+{
+	GtkTargetList *target_list;
+
+	g_return_if_fail (GTK_IS_WIDGET (widget));
+
+	target_list = gtk_drag_source_get_target_list (widget);
+	if (target_list != NULL)
+		gtk_target_list_ref (target_list);
+	else
+		target_list = gtk_target_list_new (NULL, 0);
+	e_target_list_add_calendar_targets (target_list, 0);
+	gtk_drag_dest_set_target_list (widget, target_list);
+	gtk_target_list_unref (target_list);
+}
+
+void
+e_drag_dest_add_directory_targets (GtkWidget *widget)
+{
+	GtkTargetList *target_list;
+
+	g_return_if_fail (GTK_IS_WIDGET (widget));
+
+	target_list = gtk_drag_source_get_target_list (widget);
+	if (target_list != NULL)
+		gtk_target_list_ref (target_list);
+	else
+		target_list = gtk_target_list_new (NULL, 0);
+	e_target_list_add_directory_targets (target_list, 0);
+	gtk_drag_dest_set_target_list (widget, target_list);
+	gtk_target_list_unref (target_list);
+}
+
+void
+e_drag_dest_add_html_targets (GtkWidget *widget)
+{
+	GtkTargetList *target_list;
+
+	g_return_if_fail (GTK_IS_WIDGET (widget));
+
+	target_list = gtk_drag_source_get_target_list (widget);
+	if (target_list != NULL)
+		gtk_target_list_ref (target_list);
+	else
+		target_list = gtk_target_list_new (NULL, 0);
+	e_target_list_add_html_targets (target_list, 0);
+	gtk_drag_dest_set_target_list (widget, target_list);
+	gtk_target_list_unref (target_list);
+}
+
+void
+e_drag_source_add_calendar_targets (GtkWidget *widget)
+{
+	GtkTargetList *target_list;
+
+	g_return_if_fail (GTK_IS_WIDGET (widget));
+
+	target_list = gtk_drag_source_get_target_list (widget);
+	if (target_list != NULL)
+		gtk_target_list_ref (target_list);
+	else
+		target_list = gtk_target_list_new (NULL, 0);
+	e_target_list_add_calendar_targets (target_list, 0);
+	gtk_drag_source_set_target_list (widget, target_list);
+	gtk_target_list_unref (target_list);
+}
+
+void
+e_drag_source_add_directory_targets (GtkWidget *widget)
+{
+	GtkTargetList *target_list;
+
+	g_return_if_fail (GTK_IS_WIDGET (widget));
+
+	target_list = gtk_drag_source_get_target_list (widget);
+	if (target_list != NULL)
+		gtk_target_list_ref (target_list);
+	else
+		target_list = gtk_target_list_new (NULL, 0);
+	e_target_list_add_directory_targets (target_list, 0);
+	gtk_drag_source_set_target_list (widget, target_list);
+	gtk_target_list_unref (target_list);
+}
+
+void
+e_drag_source_add_html_targets (GtkWidget *widget)
+{
+	GtkTargetList *target_list;
+
+	g_return_if_fail (GTK_IS_WIDGET (widget));
+
+	target_list = gtk_drag_source_get_target_list (widget);
+	if (target_list != NULL)
+		gtk_target_list_ref (target_list);
+	else
+		target_list = gtk_target_list_new (NULL, 0);
+	e_target_list_add_html_targets (target_list, 0);
+	gtk_drag_source_set_target_list (widget, target_list);
+	gtk_target_list_unref (target_list);
+}
diff --git a/e-util/e-selection.h b/e-util/e-selection.h
index 2c59d3d641..f179180cd9 100644
--- a/e-util/e-selection.h
+++ b/e-util/e-selection.h
@@ -114,6 +114,21 @@ gboolean	e_clipboard_wait_is_directory_available
 gboolean	e_clipboard_wait_is_html_available
 					(GtkClipboard *clipboard);
 
+/* Drag and Drop Functions */
+
+void		e_drag_dest_add_calendar_targets
+					(GtkWidget *widget);
+void		e_drag_dest_add_directory_targets
+					(GtkWidget *widget);
+void		e_drag_dest_add_html_targets
+					(GtkWidget *widget);
+void		e_drag_source_add_calendar_targets
+					(GtkWidget *widget);
+void		e_drag_source_add_directory_targets
+					(GtkWidget *widget);
+void		e_drag_source_add_html_targets
+					(GtkWidget *widget);
+
 G_END_DECLS
 
 #endif /* E_SELECTION_H */