fix #2165 (Document Viewer Dialog: previous/next buttons not functional)

static/js/documentDialog.js

@@ -59,6 +59,7 @@ pandora.ui.documentDialog = function(options) {
 
     var dialogHeight = Math.round((window.innerHeight - 48) * 0.9) + 24,
         dialogWidth = Math.round(window.innerWidth * 0.9),
+        isItemView = !pandora.$ui.documentsDialog,
         items = options.items,
         item = items[options.index],
         settings = getSettings(),
@@ -125,10 +126,11 @@ pandora.ui.documentDialog = function(options) {
             [items.length > 1 ? 'show' : 'hide']()
             .bindEvent({
                 click: function(data) {
-                    options.index = Ox.mod(
-                        options.index + (data.id == 'previous' ? -1 : 1),
-                        items.length
-                    );
+                    var offset = data.id == 'previous' ? -1 : 1;
+                    options.index = Ox.mod(options.index + offset, items.length);
+                    pandora.$ui[
+                        isItemView ? 'documents' : 'documentsDialogPanel'
+                    ].selectSelected(offset);
                     pandora.UI.set({document: items[options.index].id});
                 }
             });

static/js/documentsDialog.js

@@ -58,6 +58,8 @@ pandora.ui.documentsDialog = function() {
     that.close = function() {
         Ox.Request.clearCache('findDocuments');
         that.superClose();
+        // needed in documentDialog to determine if isItemView
+        delete pandora.$ui.documentsDialog;
     };
 
     return that;

static/js/documentsPanel.js

@@ -886,6 +886,11 @@ pandora.ui.documentsPanel = function(options) {
         }).open();
     }
 
+    that.selectSelected = function(offset) {
+        $list.selectSelected(offset);
+        return that;
+    };
+
     that.updateSize = function() {
         $list.size();
     };