From 989364fcf105797896a7172a4c9367f6b07848b2 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Aleksander=20=C5=81ukasz?=
 <aleksander.lukasz@nowoczesnapolska.org.pl>
Date: Tue, 11 Feb 2014 14:38:58 +0100
Subject: [PATCH] wlxml: inheritance support for WLXML class methods and
 transformations

---
 src/wlxml/wlxml.js      | 20 ++++++++++++++++++--
 src/wlxml/wlxml.test.js | 21 ++++++++++++++++++++-
 2 files changed, 38 insertions(+), 3 deletions(-)

diff --git a/src/wlxml/wlxml.js b/src/wlxml/wlxml.js
index fe0636d..9fb6a98 100644
--- a/src/wlxml/wlxml.js
+++ b/src/wlxml/wlxml.js
@@ -17,10 +17,26 @@ AttributesList.prototype.keys = function() {
     return _.keys(this);
 };
 
+var getClassLists = function(klassName) {
+    var toret = [],
+        classParts = [''].concat(klassName.split('.')),
+        classCurrent;
+
+    classParts.forEach(function(part) {
+        classCurrent = classCurrent ? classCurrent + '.' + part : part;
+        toret.push(classCurrent);
+    });
+    return toret;
+};
+
 var installObject = function(instance, klass) {
-    var methods = instance.document.classMethods[klass] || {},
-        transformations = instance.document.classTransformations[klass] || {};
+    var methods = {},
+        transformations = {};
 
+    getClassLists(klass).forEach(function(klassName) {
+        _.extend(methods, instance.document.classMethods[klassName] || {});
+        _.extend(methods, instance.document.classTransformations[klassName] || {});
+    });
     instance.object = Object.create(_.extend({}, methods, transformations));
     _.keys(methods).concat(_.keys(transformations)).forEach(function(key) {
         instance.object[key] = _.bind(instance.object[key], instance);
diff --git a/src/wlxml/wlxml.test.js b/src/wlxml/wlxml.test.js
index 18a7332..d3aa912 100644
--- a/src/wlxml/wlxml.test.js
+++ b/src/wlxml/wlxml.test.js
@@ -263,7 +263,7 @@ describe('WLXMLDocument', function() {
         var doc, extension, elementNode, textNode, testClassNode;
 
         beforeEach(function() {
-            doc = getDocumentFromXML('<section>Alice<div class="test_class"></div></section>');
+            doc = getDocumentFromXML('<section>Alice<div class="test_class"></div><div class="test_class.a"></div></section>');
             elementNode = doc.root;
             textNode = doc.root.contents()[0];
             testClassNode = doc.root.contents('.test_class');
@@ -292,6 +292,25 @@ describe('WLXMLDocument', function() {
             expect(testClassNode.object.testTransformation().sameNode(testClassNode)).to.equal(true, '1');
             expect(testClassNode.object.testTransformation2().sameNode(testClassNode)).to.equal(true, '1');
         });
+
+        it('added methods are inherited by nodes with subclasses', function() {
+            extension = {wlxmlClass: {test_class: {methods: {
+                testMethod: function() { return this; }
+            }}}};
+            doc.registerExtension(extension);
+            testClassNode = doc.root.contents()[2];
+            expect(testClassNode.object.testMethod().sameNode(testClassNode)).to.equal(true);
+        });
+        it('added transformations are inherited by nodes with subclasses', function() {
+            extension = {wlxmlClass: {test_class: {transformations: {
+                testTransformation: function() { return this; },
+                testTransformation2: {impl: function() { return this; }}
+            }}}};
+            doc.registerExtension(extension);
+            testClassNode = doc.root.contents()[2];
+            expect(testClassNode.object.testTransformation().sameNode(testClassNode)).to.equal(true, '1');
+            expect(testClassNode.object.testTransformation2().sameNode(testClassNode)).to.equal(true, '2');
+        });
     });
 });
 
-- 
2.20.1