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authorAlejandro PiƱeiro <[email protected]>2013-11-28 17:55:04 +0100
committerraveit65 <[email protected]>2017-11-27 10:13:51 +0100
commit61436664b37b07487cfb9c22ab146a486de91300 (patch)
treeaaace38acc6d2b7058015083282f3e8599b2402d /libview/ev-view-accessible.c
parent22d0adb2567859eb8ebe8fe1297f5699fdfb8d07 (diff)
downloadatril-61436664b37b07487cfb9c22ab146a486de91300.tar.bz2
atril-61436664b37b07487cfb9c22ab146a486de91300.tar.xz
a11y: implement AtkDocument on EvViewAccessible
https://bugzilla.gnome.org/show_bug.cgi?id=719507 origin commit: https://git.gnome.org/browse/evince/commit/?h=gnome-3-12&id=c5c528d
Diffstat (limited to 'libview/ev-view-accessible.c')
-rw-r--r--libview/ev-view-accessible.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/libview/ev-view-accessible.c b/libview/ev-view-accessible.c
index 1ba83a58..80f08e5d 100644
--- a/libview/ev-view-accessible.c
+++ b/libview/ev-view-accessible.c
@@ -33,6 +33,7 @@
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);
+static void ev_view_accessible_document_iface_init (AtkDocumentIface *iface);
enum {
ACTION_SCROLL_UP,
@@ -75,6 +76,7 @@ G_DEFINE_TYPE_WITH_CODE (EvViewAccessible, ev_view_accessible, GTK_TYPE_CONTAINE
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)
+ G_IMPLEMENT_INTERFACE (ATK_TYPE_DOCUMENT, ev_view_accessible_document_iface_init)
)
static gint
@@ -854,6 +856,42 @@ ev_view_accessible_set_selection (AtkText *text,
return retval;
}
+static gint
+ev_view_accessible_get_page_count (AtkDocument *atk_document)
+{
+ EvDocument *ev_document;
+ EvViewAccessiblePrivate* priv;
+
+ g_return_val_if_fail (EV_IS_VIEW_ACCESSIBLE (atk_document), -1);
+
+ priv = EV_VIEW_ACCESSIBLE (atk_document)->priv;
+ ev_document = ev_document_model_get_document (priv->model);
+
+ return ev_document == NULL ? -1 : ev_document_get_n_pages (ev_document);
+}
+
+static gint
+ev_view_accessible_get_current_page_number (AtkDocument *atk_document)
+{
+ GtkWidget *widget;
+
+ g_return_val_if_fail (EV_IS_VIEW_ACCESSIBLE (atk_document), -1);
+
+ widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (atk_document));
+ if (widget == NULL)
+ return -1;
+
+ /* +1 as user starts to count on 1, but evince starts on 0 */
+ return get_relevant_page (EV_VIEW (widget)) + 1;
+}
+
+static void
+ev_view_accessible_document_iface_init (AtkDocumentIface *iface)
+{
+ iface->get_current_page_number = ev_view_accessible_get_current_page_number;
+ iface->get_page_count = ev_view_accessible_get_page_count;
+}
+
static void
ev_view_accessible_text_iface_init (AtkTextIface * iface)
{
@@ -1098,6 +1136,8 @@ ev_view_accessible_cursor_moved (EvView *view,
if (priv->previous_cursor_page != page) {
priv->previous_cursor_page = page;
clear_cache (accessible);
+ /* +1 as user start to count on 1, but evince starts on 0 */
+ g_signal_emit_by_name (accessible, "page-changed", page + 1);
}
g_signal_emit_by_name (accessible, "text-caret-moved", offset);
@@ -1117,6 +1157,11 @@ page_changed_cb (EvDocumentModel *model,
EvViewAccessible *accessible)
{
clear_cache (accessible);
+ EvView *view;
+
+ view = EV_VIEW (gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible)));
+ if (!ev_view_is_caret_navigation_enabled (view))
+ g_signal_emit_by_name (accessible, "page-changed", new_page + 1);
}
static void
@@ -1130,6 +1175,15 @@ document_changed_cb (EvDocumentModel *model,
return;
clear_cache (accessible);
+
+ /* Inside this callback the document is already loaded. We
+ * don't have here an "just before" and "just after"
+ * signal. We emit both in a row, as usual ATs uses reload to
+ * know that current content has changed, and load-complete to
+ * know that the content is already available.
+ */
+ g_signal_emit_by_name (accessible, "reload");
+ g_signal_emit_by_name (accessible, "load-complete");
}
void