added validation for add(). An error is thrown if an invalid node is added

2026-01-09 11:34:38 +08:00 · 2013-07-22 22:47:13 -07:00
parent 1fc57bed4c
commit 3eea92d72e
6 changed files with 126 additions and 2 deletions
--- a/src/Stage.js
+++ b/src/Stage.js
@@ -47,6 +47,11 @@
            this._bindContentEvents();
            Kinetic.Global.stages.push(this);
        },
+        _validateAdd: function(child) {
+            if (child.getType() !== 'Layer') {
+                Kinetic.Util.error('You may only add layers to the stage.');
+            }
+        },
        /**
         * set container dom element which contains the stage wrapper div element
         * @method