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/*
* 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)
*
*/
#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 view; /* weak pointer */
};
enum {
PROP_0,
PROP_VIEW
};
static gpointer parent_class;
static void
attachment_handler_set_view (EAttachmentHandler *handler,
EAttachmentView *view)
{
g_return_if_fail (handler->priv->view == NULL);
handler->priv->view = view;
g_object_add_weak_pointer (
G_OBJECT (view), &handler->priv->view);
}
static void
attachment_handler_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
switch (property_id) {
case PROP_VIEW:
attachment_handler_set_view (
E_ATTACHMENT_HANDLER (object),
g_value_get_object (value));
return;
}
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
static void
attachment_handler_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
switch (property_id) {
case PROP_VIEW:
g_value_set_object (
value, e_attachment_handler_get_view (
E_ATTACHMENT_HANDLER (object)));
return;
}
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
static void
attachment_handler_constructed (GObject *object)
{
/* This allows subclasses to chain up safely since GObject
* does not implement this method, and we might want to do
* something here in the future. */
}
static void
attachment_handler_dispose (GObject *object)
{
EAttachmentHandlerPrivate *priv;
priv = E_ATTACHMENT_HANDLER_GET_PRIVATE (object);
if (priv->view != NULL) {
g_object_remove_weak_pointer (
G_OBJECT (priv->view), &priv->view);
priv->view = NULL;
}
/* Chain up to parent's dispose() method. */
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
attachment_handler_class_init (EAttachmentHandlerClass *class)
{
GObjectClass *object_class;
parent_class = g_type_class_peek_parent (class);
g_type_class_add_private (class, sizeof (EAttachmentHandlerPrivate));
object_class = G_OBJECT_CLASS (class);
object_class->set_property = attachment_handler_set_property;
object_class->get_property = attachment_handler_get_property;
object_class->constructed = attachment_handler_constructed;
object_class->dispose = attachment_handler_dispose;
g_object_class_install_property (
object_class,
PROP_VIEW,
g_param_spec_object (
"view",
"View",
NULL,
E_TYPE_ATTACHMENT_VIEW,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT_ONLY));
}
static void
attachment_handler_init (EAttachmentHandler *handler)
{
handler->priv = E_ATTACHMENT_HANDLER_GET_PRIVATE (handler);
}
GType
e_attachment_handler_get_type (void)
{
static GType type = 0;
if (G_UNLIKELY (type == 0)) {
static const GTypeInfo type_info = {
sizeof (EAttachmentHandlerClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) attachment_handler_class_init,
(GClassFinalizeFunc) NULL,
NULL, /* class_data */
sizeof (EAttachmentHandler),
0, /* n_preallocs */
(GInstanceInitFunc) attachment_handler_init,
NULL /* value_table */
};
type = g_type_register_static (
G_TYPE_OBJECT, "EAttachmentHandler",
&type_info, G_TYPE_FLAG_ABSTRACT);
}
return type;
}
EAttachmentView *
e_attachment_handler_get_view (EAttachmentHandler *handler)
{
g_return_val_if_fail (E_IS_ATTACHMENT_HANDLER (handler), NULL);
return E_ATTACHMENT_VIEW (handler->priv->view);
}
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;
}
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