[pdf] Add support for OCG State actions

diff --git a/backend/pdf/ev-poppler.cc b/backend/pdf/ev-poppler.cc
index 0c5c8982270a0954b99d0f1277bf88b9ec521a65..aa080e6f5742c3373f0aac9dad57161fb62462f9 100644 (file)
--- a/backend/pdf/ev-poppler.cc
+++ b/backend/pdf/ev-poppler.cc
@@ -1212,8 +1212,47 @@ ev_link_from_action (PdfDocument   *pdf_document,
                case POPPLER_ACTION_RENDITION:
                        unimplemented_action = "POPPLER_ACTION_RENDITION";
                        break;
-               case POPPLER_ACTION_OCG_STATE:
-                       unimplemented_action = "POPPLER_ACTION_OCG_STATE";
+               case POPPLER_ACTION_OCG_STATE: {
+                       GList *on_list = NULL;
+                       GList *off_list = NULL;
+                       GList *toggle_list = NULL;
+                       GList *l, *m;
+
+                       for (l = action->ocg_state.state_list; l; l = g_list_next (l)) {
+                               PopplerActionLayer *action_layer = (PopplerActionLayer *)l->data;
+
+                               for (m = action_layer->layers; m; m = g_list_next (m)) {
+                                       PopplerLayer *layer = (PopplerLayer *)m->data;
+                                       EvLayer      *ev_layer;
+
+                                       ev_layer = ev_layer_new (poppler_layer_is_parent (layer),
+                                                                poppler_layer_get_radio_button_group_id (layer));
+                                       g_object_set_data_full (G_OBJECT (ev_layer),
+                                                               "poppler-layer",
+                                                               g_object_ref (layer),
+                                                               (GDestroyNotify)g_object_unref);
+
+                                       switch (action_layer->action) {
+                                       case POPPLER_ACTION_LAYER_ON:
+                                               on_list = g_list_prepend (on_list, ev_layer);
+                                               break;
+                                       case POPPLER_ACTION_LAYER_OFF:
+                                               off_list = g_list_prepend (off_list, ev_layer);
+                                               break;
+                                       case POPPLER_ACTION_LAYER_TOGGLE:
+                                               toggle_list = g_list_prepend (toggle_list, ev_layer);
+                                               break;
+                                       }
+                               }
+                       }
+
+                       /* The action takes the ownership of the lists */
+                       ev_action = ev_link_action_new_layers_state (g_list_reverse (on_list),
+                                                                    g_list_reverse (off_list),
+                                                                    g_list_reverse (toggle_list));
+
+
+               }
                        break;
 #endif
                case POPPLER_ACTION_UNKNOWN: