[libview] Handle layers state actions

Show/Hide layers according to the action and emit a signal to notify
that layers have changed.

diff --git a/libview/ev-view-private.h b/libview/ev-view-private.h
index a3655072f576d140ba126d36e76eada3c1479ed2..5b5fd19d775cceeda323535a4a6c9a1b35db6285 100644 (file)
--- a/libview/ev-view-private.h
+++ b/libview/ev-view-private.h
@@ -212,6 +212,7 @@ struct _EvViewClass {
                                           EvSourceLink   *link);
        void    (*annot_added)            (EvView         *view,
                                           EvAnnotation   *annot);
+       void    (*layers_changed)         (EvView         *view);
 };
 
 void _get_page_size_for_scale_and_rotation (EvDocument *document,

diff --git a/libview/ev-view.c b/libview/ev-view.c
index 85cf501edb7d8cff505d096d55a02a0d47015e71..ba733540aef1f231c7ca4e1e66e64cdd9061c66b 100644 (file)
--- a/libview/ev-view.c
+++ b/libview/ev-view.c
@@ -32,6 +32,7 @@
 #include "ev-document-forms.h"
 #include "ev-document-images.h"
 #include "ev-document-links.h"
+#include "ev-document-layers.h"
 #include "ev-document-misc.h"
 #include "ev-pixbuf-cache.h"
 #include "ev-page-cache.h"
@@ -56,6 +57,7 @@ enum {
        SIGNAL_SELECTION_CHANGED,
        SIGNAL_SYNC_SOURCE,
        SIGNAL_ANNOT_ADDED,
+       SIGNAL_LAYERS_CHANGED,
        N_SIGNALS
 };
 
@@ -1738,6 +1740,38 @@ ev_view_handle_link (EvView *view, EvLink *link)
                        ev_view_goto_dest (view, dest);
                }
                        break;
+               case EV_LINK_ACTION_TYPE_LAYERS_STATE: {
+                       GList            *show, *hide, *toggle;
+                       GList            *l;
+                       EvDocumentLayers *document_layers;
+
+                       document_layers = EV_DOCUMENT_LAYERS (view->document);
+
+                       show = ev_link_action_get_show_list (action);
+                       for (l = show; l; l = g_list_next (l)) {
+                               ev_document_layers_show_layer (document_layers, EV_LAYER (l->data));
+                       }
+
+                       hide = ev_link_action_get_hide_list (action);
+                       for (l = hide; l; l = g_list_next (l)) {
+                               ev_document_layers_hide_layer (document_layers, EV_LAYER (l->data));
+                       }
+
+                       toggle = ev_link_action_get_toggle_list (action);
+                       for (l = toggle; l; l = g_list_next (l)) {
+                               EvLayer *layer = EV_LAYER (l->data);
+
+                               if (ev_document_layers_layer_is_visible (document_layers, layer)) {
+                                       ev_document_layers_hide_layer (document_layers, layer);
+                               } else {
+                                       ev_document_layers_show_layer (document_layers, layer);
+                               }
+                       }
+
+                       g_signal_emit (view, signals[SIGNAL_LAYERS_CHANGED], 0);
+                       ev_view_reload_page (view, view->current_page, NULL);
+               }
+                       break;
                case EV_LINK_ACTION_TYPE_GOTO_REMOTE:
                case EV_LINK_ACTION_TYPE_EXTERNAL_URI:
                case EV_LINK_ACTION_TYPE_LAUNCH:
@@ -4678,6 +4712,14 @@ ev_view_class_init (EvViewClass *class)
                         g_cclosure_marshal_VOID__OBJECT,
                         G_TYPE_NONE, 1,
                         EV_TYPE_ANNOTATION);
+       signals[SIGNAL_LAYERS_CHANGED] = g_signal_new ("layers-changed",
+                        G_TYPE_FROM_CLASS (object_class),
+                        G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
+                        G_STRUCT_OFFSET (EvViewClass, layers_changed),
+                        NULL, NULL,
+                        g_cclosure_marshal_VOID__VOID,
+                        G_TYPE_NONE, 0,
+                        G_TYPE_NONE);
 
        binding_set = gtk_binding_set_by_class (class);