1 files changed, 66 insertions, 0 deletions
diff --git a/extlib/leaflet/src/core/Class.js b/extlib/leaflet/src/core/Class.js
new file mode 100644
index 00000000..09a9e539
--- /dev/null
+++ b/extlib/leaflet/src/core/Class.js
@@ -0,0 +1,66 @@
+/*
+ * Class powers the OOP facilities of the library. Thanks to John Resig and Dean Edwards for inspiration!
+ */
+
+L.Class = function() {}; 
+
+L.Class.extend = function(/*Object*/ props) /*-> Class*/ {
+	
+	// extended class with the new prototype
+	var NewClass = function() {
+		if (!L.Class._prototyping && this.initialize) {
+			this.initialize.apply(this, arguments);
+		}
+	};
+
+	// instantiate class without calling constructor
+	L.Class._prototyping = true;
+	var proto = new this();
+	L.Class._prototyping = false;
+
+	proto.constructor = NewClass;
+	NewClass.prototype = proto;
+	
+	// add superclass access
+	proto.superclass = this.prototype;
+	
+	// add class name
+	//proto.className = props;
+	
+	// mix static properties into the class
+	if (props.statics) {
+		L.Util.extend(NewClass, props.statics);
+		delete props.statics;
+	}
+	
+	// mix includes into the prototype
+	if (props.includes) {
+		L.Util.extend.apply(null, [proto].concat(props.includes));
+		delete props.includes;
+	}
+	
+	// merge options
+	if (props.options && proto.options) {
+		props.options = L.Util.extend({}, proto.options, props.options);
+	}
+
+	// mix given properties into the prototype
+	L.Util.extend(proto, props);
+	
+	// allow inheriting further
+	NewClass.extend = arguments.callee;
+	
+	// method for adding properties to prototype
+	NewClass.include = function(props) {
+		L.Util.extend(this.prototype, props);
+	};
+	
+	//inherit parent's statics
+	for (var i in this) {
+		if (this.hasOwnProperty(i) && i != 'prototype') {
+			NewClass[i] = this[i];
+		}
+	}
+	
+	return NewClass;
+};
+\ No newline at end of file