Consolidate base utility libraries into libeutil.

Evolution consists of entirely too many small utility libraries, which
increases linking and loading time, places a burden on higher layers of
the application (e.g. modules) which has to remember to link to all the
small in-tree utility libraries, and makes it difficult to generate API
documentation for these utility libraries in one Gtk-Doc module.

Merge the following utility libraries under the umbrella of libeutil,
and enforce a single-include policy on libeutil so we can reorganize
the files as desired without disrupting its pseudo-public API.

   libemail-utils/libemail-utils.la
   libevolution-utils/libevolution-utils.la
   filter/libfilter.la
   widgets/e-timezone-dialog/libetimezonedialog.la
   widgets/menus/libmenus.la
   widgets/misc/libemiscwidgets.la
   widgets/table/libetable.la
   widgets/text/libetext.la

This also merges libedataserverui from the Evolution-Data-Server module,
since Evolution is its only consumer nowadays, and I'd like to make some
improvements to those APIs without concern for backward-compatibility.

And finally, start a Gtk-Doc module for libeutil.  It's going to be a
project just getting all the symbols _listed_ much less _documented_.
But the skeletal structure is in place and I'm off to a good start.

1 files changed, 133 insertions, 0 deletions

diff --git a/e-util/e-attachment-handler.c b/e-util/e-attachment-handler.c
new file mode 100644
index 0000000000..87b9abddb5
--- /dev/null
+++ b/e-util/e-attachment-handler.c
@@ -0,0 +1,133 @@
+/*
+ * e-attachment-handler.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)
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "e-attachment-handler.h"
+
+#define E_ATTACHMENT_HANDLER_GET_PRIVATE(obj) \
+	(G_TYPE_INSTANCE_GET_PRIVATE \
+	((obj), E_TYPE_ATTACHMENT_HANDLER, EAttachmentHandlerPrivate))
+
+struct _EAttachmentHandlerPrivate {
+	gpointer placeholder;
+};
+
+G_DEFINE_TYPE (
+	EAttachmentHandler,
+	e_attachment_handler,
+	E_TYPE_EXTENSION)
+
+static void
+attachment_handler_constructed (GObject *object)
+{
+	EAttachmentView *view;
+	EAttachmentHandler *handler;
+	GdkDragAction drag_actions;
+	GtkTargetList *target_list;
+	const GtkTargetEntry *targets;
+	guint n_targets;
+
+	handler = E_ATTACHMENT_HANDLER (object);
+	drag_actions = e_attachment_handler_get_drag_actions (handler);
+	targets = e_attachment_handler_get_target_table (handler, &n_targets);
+
+	view = e_attachment_handler_get_view (handler);
+
+	target_list = e_attachment_view_get_target_list (view);
+	gtk_target_list_add_table (target_list, targets, n_targets);
+
+	e_attachment_view_add_drag_actions (view, drag_actions);
+
+	/* Chain up to parent's constructed() method. */
+	G_OBJECT_CLASS (e_attachment_handler_parent_class)->constructed (object);
+}
+
+static void
+e_attachment_handler_class_init (EAttachmentHandlerClass *class)
+{
+	GObjectClass *object_class;
+	EExtensionClass *extension_class;
+
+	g_type_class_add_private (class, sizeof (EAttachmentHandlerPrivate));
+
+	object_class = G_OBJECT_CLASS (class);
+	object_class->constructed = attachment_handler_constructed;
+
+	extension_class = E_EXTENSION_CLASS (class);
+	extension_class->extensible_type = E_TYPE_ATTACHMENT_VIEW;
+}
+
+static void
+e_attachment_handler_init (EAttachmentHandler *handler)
+{
+	handler->priv = E_ATTACHMENT_HANDLER_GET_PRIVATE (handler);
+}
+
+EAttachmentView *
+e_attachment_handler_get_view (EAttachmentHandler *handler)
+{
+	EExtensible *extensible;
+
+	/* This is purely a convenience function. */
+
+	g_return_val_if_fail (E_IS_ATTACHMENT_HANDLER (handler), NULL);
+
+	extensible = e_extension_get_extensible (E_EXTENSION (handler));
+
+	return E_ATTACHMENT_VIEW (extensible);
+}
+
+GdkDragAction
+e_attachment_handler_get_drag_actions (EAttachmentHandler *handler)
+{
+	EAttachmentHandlerClass *class;
+
+	g_return_val_if_fail (E_IS_ATTACHMENT_HANDLER (handler), 0);
+
+	class = E_ATTACHMENT_HANDLER_GET_CLASS (handler);
+
+	if (class->get_drag_actions != NULL)
+		return class->get_drag_actions (handler);
+
+	return 0;
+}
+
+const GtkTargetEntry *
+e_attachment_handler_get_target_table (EAttachmentHandler *handler,
+                                       guint *n_targets)
+{
+	EAttachmentHandlerClass *class;
+
+	g_return_val_if_fail (E_IS_ATTACHMENT_HANDLER (handler), NULL);
+
+	class = E_ATTACHMENT_HANDLER_GET_CLASS (handler);
+
+	if (class->get_target_table != NULL)
+		return class->get_target_table (handler, n_targets);
+
+	if (n_targets != NULL)
+		*n_targets = 0;
+
+	return NULL;
+}