From: Mike Taylor <mike@indexdata.com>
Date: Tue, 8 Apr 2014 11:47:16 +0000 (+0100)
Subject: Add mkws.objectInheritingFrom function, code is from Douglas
X-Git-Tag: 1.0.0~982^2~2
X-Git-Url: http://git.indexdata.com/?p=mkws-moved-to-github.git;a=commitdiff_plain;h=7ef365454c1ca797f41f77d80187f6014b64b4ac

Add mkws.objectInheritingFrom function, code is from Douglas
Crockford's article "Prototypal Inheritance in JavaScript":
	http://javascript.crockford.com/prototypal.html
mkws.objectInheritingFrom behaves the same as Object.create, but since
the latter is not available in IE8 we can't use it.

Fixes bug MKWS-77 *again*.
---

diff --git a/src/mkws-core.js b/src/mkws-core.js
index 01f82c8..6b1e0f6 100644
--- a/src/mkws-core.js
+++ b/src/mkws-core.js
@@ -144,13 +144,25 @@ mkws.setMkwsConfig = function(overrides) {
 	dummy: "dummy"
     };
 
-    mkws.config = Object.create(config_default);
+    mkws.config = mkws.objectInheritingFrom(config_default);
     for (var k in overrides) {
 	mkws.config[k] = overrides[k];
     }
 };
 
 
+// This code is from Douglas Crockford's article "Prototypal Inheritance in JavaScript"
+// http://javascript.crockford.com/prototypal.html
+// mkws.objectInheritingFrom behaves the same as Object.create,
+// but since the latter is not available in IE8 we can't use it.
+//
+mkws.objectInheritingFrom = function(o) {
+    function F() {}
+    F.prototype = o;
+    return new F();
+}
+
+
 // The following functions are dispatchers for team methods that
 // are called from the UI using a team-name rather than implicit
 // context.