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/* ATK - Accessibility Toolkit
* Copyright 2006 Sun Microsystems Inc.
*
* This library 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) any later version.
*
* This library 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 this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include "atkhyperlinkimpl.h"
/**
* SECTION:atkhyperlinkimpl
* @Short_description: An interface from which the AtkHyperlink
* associated with an AtkObject may be obtained.
* @Title:AtkHyperlinImpl
*
* AtkHyperlinkImpl allows AtkObjects to refer to their associated
* AtkHyperlink instance, if one exists. AtkHyperlinkImpl differs
* from AtkHyperlink in that AtkHyperlinkImpl is an interface, whereas
* AtkHyperlink is a object type. The AtkHyperlinkImpl interface
* allows a client to query an AtkObject for the availability of an
* associated AtkHyperlink instance, and obtain that instance. It is
* thus particularly useful in cases where embedded content or inline
* content within a text object is present, since the embedding text
* object implements AtkHypertext and the inline/embedded objects are
* exposed as children which implement AtkHyperlinkImpl, in addition
* to their being obtainable via AtkHypertext:getLink followed by
* AtkHyperlink:getObject.
*
* The AtkHyperlinkImpl interface should be supported by objects
* exposed within the hierarchy as children of an AtkHypertext
* container which correspond to "links" or embedded content within
* the text. HTML anchors are not, for instance, normally exposed
* this way, but embedded images and components which appear inline in
* the content of a text object are. The AtkHyperlinkIface interface
* allows a means of determining which children are hyperlinks in this
* sense of the word, and for obtaining their corresponding
* AtkHyperlink object, from which the embedding range, URI, etc. can
* be obtained.
*
* To some extent this interface exists because, for historical
* reasons, AtkHyperlink was defined as an object type, not an
* interface. Thus, in order to interact with AtkObjects via
* AtkHyperlink semantics, a new interface was required.
*/
GType
atk_hyperlink_impl_get_type (void)
{
static GType type = 0;
if (!type) {
GTypeInfo tinfo =
{
sizeof (AtkHyperlinkImplIface),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
};
type = g_type_register_static (G_TYPE_INTERFACE, "AtkHyperlinkImpl", &tinfo, 0);
}
return type;
}
/**
* atk_hyperlink_impl_get_hyperlink:
* @impl: a #GObject instance that implements AtkHyperlinkImplIface
*
* Gets the hyperlink associated with this object.
*
* Returns: (transfer full): an AtkHyperlink object which points to this
* implementing AtkObject.
*
* Since: 1.12
**/
AtkHyperlink *
atk_hyperlink_impl_get_hyperlink (AtkHyperlinkImpl *impl)
{
AtkHyperlinkImplIface *iface;
g_return_val_if_fail (impl != NULL, NULL);
g_return_val_if_fail (ATK_IS_HYPERLINK_IMPL (impl), NULL);
iface = ATK_HYPERLINK_IMPL_GET_IFACE (impl);
if (iface->get_hyperlink)
{
return (iface->get_hyperlink) (impl);
}
return NULL;
}
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