1 files changed, 131 insertions, 8 deletions
diff --git a/libview/ev-view-accessible.c b/libview/ev-view-accessible.c
index 5a165bd2..e7feda22 100644
--- a/libview/ev-view-accessible.c
+++ b/libview/ev-view-accessible.c
@@ -27,10 +27,12 @@
 #include "ev-selection.h"
 #include "ev-page-cache.h"
 #include "ev-view-accessible.h"
+#include "ev-link-accessible.h"
 #include "ev-view-private.h"
 
-static void ev_view_accessible_text_iface_init (AtkTextIface *iface);
-static void ev_view_accessible_action_iface_init (AtkActionIface *iface);
+static void ev_view_accessible_text_iface_init (AtkTextIface *iface);
+static void ev_view_accessible_action_iface_init (AtkActionIface *iface);
+static void ev_view_accessible_hypertext_iface_init (AtkHypertextIface *iface);
 
 enum {
 ACTION_SCROLL_UP,
@@ -53,17 +55,24 @@ static const gchar *const ev_view_accessible_action_descriptions[] =
 };
 
 struct _EvViewAccessiblePrivate {
- /* Action */
- gchar *action_descriptions[LAST_ACTION];
- guint action_idle_handler;
+ guint current_page;
+
+ /* AtkAction */
+ gchar *action_descriptions[LAST_ACTION];
+ guint action_idle_handler;
 GtkScrollType idle_scroll;
+
+ /* AtkText */
 GtkTextBuffer *buffer;
- guint current_page;
+
+ /* AtkHypertext */
+ GHashTable *links;
 };
 
 G_DEFINE_TYPE_WITH_CODE (EvViewAccessible, ev_view_accessible, GTK_TYPE_CONTAINER_ACCESSIBLE,
- G_IMPLEMENT_INTERFACE (ATK_TYPE_TEXT, ev_view_accessible_text_iface_init);
- G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, ev_view_accessible_action_iface_init);
+ G_IMPLEMENT_INTERFACE (ATK_TYPE_TEXT, ev_view_accessible_text_iface_init)
+ G_IMPLEMENT_INTERFACE (ATK_TYPE_ACTION, ev_view_accessible_action_iface_init)
+ G_IMPLEMENT_INTERFACE (ATK_TYPE_HYPERTEXT, ev_view_accessible_hypertext_iface_init)
 )
 
 static void
@@ -78,7 +87,10 @@ ev_view_accessible_finalize (GObject *object)
 g_free (priv->action_descriptions [i]);
 if (priv->buffer)
 g_object_unref (priv->buffer);
+ if (priv->links)
+ g_hash_table_destroy (priv->links);
 
+ G_OBJECT_CLASS (ev_view_accessible_parent_class)->finalize (object);
 }
 
 static void
@@ -810,6 +822,117 @@ static void ev_view_accessible_action_iface_init (AtkActionIface * iface)
 iface->set_description = ev_view_accessible_action_set_description;
 }
 
+static GHashTable *
+ev_view_accessible_get_links (EvViewAccessible *accessible,
+ EvView *view)
+{
+ EvViewAccessiblePrivate* priv = accessible->priv;
+
+ if (view->current_page == priv->current_page && priv->links)
+ return priv->links;
+
+ priv->current_page = view->current_page;
+
+ if (priv->links)
+ g_hash_table_destroy (priv->links);
+ priv->links = g_hash_table_new_full (g_direct_hash,
+ g_direct_equal,
+ NULL,
+ (GDestroyNotify)g_object_unref);
+ return priv->links;
+}
+
+static AtkHyperlink *
+ev_view_accessible_get_link (AtkHypertext *hypertext,
+ gint link_index)
+{
+ GtkWidget *widget;
+ EvView *view;
+ GHashTable *links;
+ EvMappingList *link_mapping;
+ gint n_links;
+ EvMapping *mapping;
+ EvLinkAccessible *atk_link;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (hypertext));
+ if (widget == NULL)
+ /* State is defunct */
+ return NULL;
+
+ view = EV_VIEW (widget);
+ if (!EV_IS_DOCUMENT_LINKS (view->document))
+ return NULL;
+
+ links = ev_view_accessible_get_links (EV_VIEW_ACCESSIBLE (hypertext), view);
+
+ atk_link = g_hash_table_lookup (links, GINT_TO_POINTER (link_index));
+ if (atk_link)
+ return atk_hyperlink_impl_get_hyperlink (ATK_HYPERLINK_IMPL (atk_link));
+
+ link_mapping = ev_page_cache_get_link_mapping (view->page_cache, view->current_page);
+ if (!link_mapping)
+ return NULL;
+
+ n_links = ev_mapping_list_length (link_mapping);
+ mapping = ev_mapping_list_nth (link_mapping, n_links - link_index - 1);
+ atk_link = ev_link_accessible_new (EV_VIEW_ACCESSIBLE (hypertext),
+ EV_LINK (mapping->data),
+ &mapping->area);
+ g_hash_table_insert (links, GINT_TO_POINTER (link_index), atk_link);
+
+ return atk_hyperlink_impl_get_hyperlink (ATK_HYPERLINK_IMPL (atk_link));
+}
+
+static gint
+ev_view_accessible_get_n_links (AtkHypertext *hypertext)
+{
+ GtkWidget *widget;
+ EvView *view;
+ EvMappingList *link_mapping;
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (hypertext));
+ if (widget == NULL)
+ /* State is defunct */
+ return 0;
+
+ view = EV_VIEW (widget);
+ if (!EV_IS_DOCUMENT_LINKS (view->document))
+ return 0;
+
+ link_mapping = ev_page_cache_get_link_mapping (view->page_cache, view->current_page);
+
+ return link_mapping ? ev_mapping_list_length (link_mapping) : 0;
+}
+
+static gint
+ev_view_accessible_get_link_index (AtkHypertext *hypertext,
+ gint offset)
+{
+ guint i;
+
+ for (i = 0; i < ev_view_accessible_get_n_links (hypertext); i++) {
+ AtkHyperlink *hyperlink;
+ gint start_index, end_index;
+
+ hyperlink = ev_view_accessible_get_link (hypertext, i);
+ start_index = atk_hyperlink_get_start_index (hyperlink);
+ end_index = atk_hyperlink_get_end_index (hyperlink);
+
+ if (start_index <= offset && end_index >= offset)
+ return i;
+ }
+
+ return -1;
+}
+
+static void
+ev_view_accessible_hypertext_iface_init (AtkHypertextIface *iface)
+{
+ iface->get_link = ev_view_accessible_get_link;
+ iface->get_n_links = ev_view_accessible_get_n_links;
+ iface->get_link_index = ev_view_accessible_get_link_index;
+}
+
 AtkObject *
 ev_view_accessible_new (GtkWidget *widget)
 {