Allow action handlers to show a scene object's associated text without having an allowed action (though by default they still don't)

git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@3917 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/java/com/threerings/miso/client/MisoScenePanel.java

@@ -1040,7 +1040,7 @@ public class MisoScenePanel extends VirtualMediaPanel
             // if we have an object action handler, possibly let them veto
             // the display of this tooltip and action
             ObjectActionHandler oah = ObjectActionHandler.lookup(action);
-            if (oah != null && !oah.actionAllowed(action)) {
+            if (oah != null && !oah.isVisible(action)) {
                 continue;
             }
 

src/java/com/threerings/miso/client/ObjectActionHandler.java

@@ -40,14 +40,24 @@ public class ObjectActionHandler
 {
     /**
      * Returns true if we should allow this object action, false if we
-     * should not. This is used to completely hide actions that should not
-     * be visible without the proper privileges.
+     * should not.
      */
     public boolean actionAllowed (String action)
     {
         return true;
     }
 
+    /**
+     * Returns true if we should display the text for the action.  By default
+     *  this returns whether the action is allowed or not, but can be
+     *  overridden by subclasses. This is used to completely hide actions that
+     *  should not be visible without the proper privileges.
+     */
+    public boolean isVisible (String action)
+    {
+        return actionAllowed(action);
+    }
+
     /**
      * Get the human readable object tip for the specified action.
      */