generalise plot schema handling of component attributes

- replace layoutNodes list with _module.schema object
  which allow multiple distinct attribute
  (e.g. with different description) for each nodes

Author: etpinard

src/components/rangeselector/index.js

@@ -12,7 +12,12 @@ module.exports = {
     moduleType: 'component',
     name: 'rangeselector',
 
-    layoutNodes: ['xaxis.'],
+    schema: {
+        layout: {
+            'xaxis.rangeselector': require('./attributes')
+        }
+    },
+
     layoutAttributes: require('./attributes'),
     handleDefaults: require('./defaults'),
 

src/components/rangeslider/index.js

@@ -12,7 +12,12 @@ module.exports = {
     moduleType: 'component',
     name: 'rangeslider',
 
-    layoutNodes: ['xaxis.'],
+    schema: {
+        layout: {
+            'xaxis.rangeslider': require('./attributes')
+        }
+    },
+
     layoutAttributes: require('./attributes'),
     handleDefaults: require('./defaults'),
 

src/plot_api/plot_schema.js

@@ -257,19 +257,19 @@ function getLayoutAttributes() {
     // polar layout attributes
     layoutAttributes = assignPolarLayoutAttrs(layoutAttributes);
 
-    // add registered components layout attribute
+    // add registered components layout attributes
     Object.keys(Registry.componentsRegistry).forEach(function(k) {
         var _module = Registry.componentsRegistry[k];
 
         if(!_module.layoutAttributes) return;
 
-        if(Array.isArray(_module.layoutNodes)) {
-            _module.layoutNodes.forEach(function(v) {
-                handleRegisteredComponent(layoutAttributes, _module, v + _module.name);
+        if(_module.schema && _module.schema.layout) {
+            Object.keys(_module.schema.layout).forEach(function(v) {
+                insertAttrs(layoutAttributes, _module.schema.layout[v], v);
             });
         }
         else {
-            handleRegisteredComponent(layoutAttributes, _module, _module.name);
+            insertAttrs(layoutAttributes, _module.layoutAttributes, _module.name);
         }
     });
 
@@ -366,9 +366,8 @@ function handleBasePlotModule(layoutAttributes, _module, astr) {
     np.set(attrs);
 }
 
-function handleRegisteredComponent(layoutAttributes, _module, astr) {
-    var np = Lib.nestedProperty(layoutAttributes, astr),
-        attrs = extendDeep(np.get() || {}, _module.layoutAttributes);
+function insertAttrs(baseAttrs, newAttrs, astr) {
+    var np = Lib.nestedProperty(baseAttrs, astr);
 
-    np.set(attrs);
+    np.set(extendDeep(np.get() || {}, newAttrs));
 }