Add Layer in docs

docs/.vuepress/config.js

@@ -78,6 +78,7 @@ module.exports = {
         ['/api/property_select', `${subDivider}PropertySelect`],
         ['/api/property_composite', `${subDivider}PropertyComposite`],
         ['/api/property_stack', `${subDivider}PropertyStack`],
+        ['/api/layer', `${subDivider}Layer`],
         ['/api/storage_manager', 'Storage Manager'],
         ['/api/device_manager', 'Device Manager'],
         ['/api/device', `${subDivider}Device`],

docs/api.js

@@ -27,6 +27,7 @@ async function generateDocs () {
     ['style_manager/model/PropertySelect.js', 'property_select.md'],
     ['style_manager/model/PropertyComposite.js', 'property_composite.md'],
     ['style_manager/model/PropertyStack.js', 'property_stack.md'],
+    ['style_manager/model/Layer.js', 'layer.md'],
     ['storage_manager/index.js', 'storage_manager.md'],
     ['device_manager/index.js', 'device_manager.md'],
     ['device_manager/model/Device.js', 'device.md'],

docs/api/layer.md

@@ -0,0 +1,25 @@
+<!-- Generated by documentation.js. Update this documentation by updating the source code. -->
+
+## getIndex
+
+Get layer index.
+
+Returns **[Number][1]** 
+
+## getValues
+
+Get layer values.
+
+### Parameters
+
+*   `opts` **[Object][2]** Options (optional, default `{}`)
+
+    *   `opts.camelCase` **[Boolean][3]?** Return property names in camelCase.
+
+Returns **[Object][2]** 
+
+[1]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Number
+
+[2]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Object
+
+[3]: https://developer.mozilla.org/docs/Web/JavaScript/Reference/Global_Objects/Boolean

docs/api/property_stack.md

@@ -4,6 +4,8 @@
 
 **Extends PropertyComposite**
 
+[Layer]: layer.html
+
 ### Properties
 
 *   `layerSeparator` **([String][1] | [RegExp][2])?** The separator used to split layer values.
@@ -127,7 +129,7 @@ Returns **([Layer] | null)** Removed layer
 
 ### getLayerLabel
 
-Get layer label.
+Get the layer label. The label can be customized with the `layerLabel` property.
 
 #### Parameters
 

src/style_manager/model/PropertyStack.js

@@ -8,10 +8,15 @@ const VALUES_REG = /,(?![^\(]*\))/;
 const PARTS_REG = /\s(?![^(]*\))/;
 
 /**
+ *
+ * [Layer]: layer.html
+ *
+ *
  * @typedef PropertyStack
  * @property {String|RegExp} [layerSeparator=', '] The separator used to split layer values.
  * @property {String} [layerJoin=', '] Value used to join layer values.
  * @property {Function} [layerLabel] Custom logic for creating the layer value.
+ *
  */
 export default class PropertyStack extends PropertyComposite {
   defaults() {