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// SPDX-License-Identifier: GPL-2.0-or-later
/* pps-document-links.h
* this file is part of papers, a gnome document viewer
*
* Copyright (C) 2004 Red Hat, Inc.
*
* Author:
* Jonathan Blandford <jrb@alum.mit.edu>
*/
#include "config.h"
#include "pps-document-links.h"
G_DEFINE_INTERFACE (PpsDocumentLinks, pps_document_links, 0)
static void
pps_document_links_default_init (PpsDocumentLinksInterface *klass)
{
}
gboolean
pps_document_links_has_document_links (PpsDocumentLinks *document_links)
{
PpsDocumentLinksInterface *iface = PPS_DOCUMENT_LINKS_GET_IFACE (document_links);
gboolean retval;
retval = iface->has_document_links (document_links);
return retval;
}
/**
* pps_document_links_get_links_model:
* @document_links: an #PpsDocumentLinks
*
* Returns: (nullable) (transfer full): a #GListModel
*/
GListModel *
pps_document_links_get_links_model (PpsDocumentLinks *document_links)
{
PpsDocumentLinksInterface *iface = PPS_DOCUMENT_LINKS_GET_IFACE (document_links);
return iface->get_links_model (document_links);
}
PpsMappingList *
pps_document_links_get_links (PpsDocumentLinks *document_links,
PpsPage *page)
{
PpsDocumentLinksInterface *iface = PPS_DOCUMENT_LINKS_GET_IFACE (document_links);
return iface->get_links (document_links, page);
}
/**
* pps_document_links_find_link_dest:
* @document_links: an #PpsDocumentLinks
* @link_name: the link name
*
* Returns: (transfer full): an #PpsLinkDest
*/
PpsLinkDest *
pps_document_links_find_link_dest (PpsDocumentLinks *document_links,
const gchar *link_name)
{
PpsDocumentLinksInterface *iface = PPS_DOCUMENT_LINKS_GET_IFACE (document_links);
PpsLinkDest *retval;
retval = iface->find_link_dest (document_links, link_name);
return retval;
}
gint
pps_document_links_find_link_page (PpsDocumentLinks *document_links,
const gchar *link_name)
{
PpsDocumentLinksInterface *iface = PPS_DOCUMENT_LINKS_GET_IFACE (document_links);
gint retval;
retval = iface->find_link_page (document_links, link_name);
return retval;
}
/* Helper functions */
gint
pps_document_links_get_dest_page (PpsDocumentLinks *document_links,
PpsLinkDest *dest)
{
gint page = -1;
switch (pps_link_dest_get_dest_type (dest)) {
case PPS_LINK_DEST_TYPE_NAMED: {
page = pps_document_links_find_link_page (document_links,
pps_link_dest_get_named_dest (dest));
} break;
case PPS_LINK_DEST_TYPE_PAGE_LABEL:
pps_document_find_page_by_label (PPS_DOCUMENT (document_links),
pps_link_dest_get_page_label (dest),
&page);
break;
default:
page = pps_link_dest_get_page (dest);
}
return page;
}
gchar *
pps_document_links_get_dest_page_label (PpsDocumentLinks *document_links,
PpsLinkDest *dest)
{
gchar *label = NULL;
if (pps_link_dest_get_dest_type (dest) == PPS_LINK_DEST_TYPE_PAGE_LABEL) {
label = g_strdup (pps_link_dest_get_page_label (dest));
} else {
gint page;
page = pps_document_links_get_dest_page (document_links, dest);
if (page != -1)
label = pps_document_get_page_label (PPS_DOCUMENT (document_links),
page);
}
return label;
}
static PpsLinkDest *
get_link_dest (PpsLink *link)
{
PpsLinkAction *action;
action = pps_link_get_action (link);
if (!action)
return NULL;
if (pps_link_action_get_action_type (action) !=
PPS_LINK_ACTION_TYPE_GOTO_DEST)
return NULL;
return pps_link_action_get_dest (action);
}
gint
pps_document_links_get_link_page (PpsDocumentLinks *document_links,
PpsLink *link)
{
PpsLinkDest *dest;
dest = get_link_dest (link);
return dest ? pps_document_links_get_dest_page (document_links, dest) : -1;
}
gchar *
pps_document_links_get_link_page_label (PpsDocumentLinks *document_links,
PpsLink *link)
{
PpsLinkDest *dest;
dest = get_link_dest (link);
return dest ? pps_document_links_get_dest_page_label (document_links, dest) : NULL;
}
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