Feat: Add custom component display names (#933)

- User can define a custom name via a custom @sgDisplayName tag in the doc block

Author: glebez

docs/Cookbook.md

@@ -27,6 +27,7 @@
 - [How to add fonts from Google Fonts?](#how-to-add-fonts-from-google-fonts)
 - [How to reuse project’s webpack config?](#how-to-reuse-projects-webpack-config)
 - [How to use React Styleguidist with Redux, Relay or Styled Components?](#how-to-use-react-styleguidist-with-redux-relay-or-styled-components)
+- [How to change the names of components displayed in Styleguidist UI?](#how-to-change-the-names-of-components-displayed-in-styleguidist-ui)
 - [What’s the difference between Styleguidist and Storybook?](#whats-the-difference-between-styleguidist-and-storybook)
 - [Are there any other projects like this?](#are-there-any-other-projects-like-this)
 
@@ -527,6 +528,25 @@ See in [configuring webpack](Webpack.md#reusing-your-projects-webpack-config).
 
 See [working with third-party libraries](Thirdparties.md).
 
+## How to change the names of components displayed in Styleguidist UI?
+
+You might want to change your components' names to be displayed differently, for example, for stylistic purposes or to give them a more descriptive names in your styleguide.
+
+This can be done by adding [@visibleName](Documenting.md#defining-custom-component-names) tag to your component documentation.
+
+In case you want to change components' names in bulk, for example, based on their current name, you can use [updateDocs](Configuration.md#updatedocs) config option:
+
+```javascript
+module.exports = {
+  updateDocs(docs) {
+    if (docs && docs.displayName) {
+      docs.visibleName = docs.displayName.toLowerCase()
+    }
+    return docs
+  }
+}
+```
+
 ## What’s the difference between Styleguidist and Storybook?
 
 Both tools are good and mature, they have many similarities but also some distinctions that may make you choose one or the other. For me the biggest distinction is how you describe component variations.

docs/Documenting.md

@@ -13,6 +13,7 @@ Styleguidist generates documentation for your components based on the comments i
 - [External examples using doclet tags](#external-examples-using-doclet-tags)
 - [Public methods](#public-methods)
 - [Ignoring props](#ignoring-props)
+- [Defining custom component names](#defining-custom-component-names)
 - [Using JSDoc tags](#using-jsdoc-tags)
 - [Writing code examples](#writing-code-examples)
 - [Limitations](#limitations)
@@ -143,6 +144,21 @@ MyComponent.propTypes = {
 }
 ```
 
+## Defining custom component names
+
+Use @visibleName JSDoc tag to define component names that are used in the Styleguidist UI:
+
+```javascript
+/**
+ * The only true button.
+ *
+ * @visibleName The Best Button Ever 🐙
+ */
+class Button extends React.Component {
+```
+
+Now the component will be displayed with a custom 'The Bust Button Ever🐙' name and this will not change the name of the component that is used in the JSX.
+
 ## Using JSDoc tags
 
 You can use the following [JSDoc](http://usejsdoc.org/) tags when documenting components, props and methods:

examples/basic/src/components/PushButton/PushButton.js

@@ -4,7 +4,8 @@ import PropTypes from 'prop-types';
 import './PushButton.css';
 
 /**
- * An example-less button.
+ * An example-less button with custom display name.
+ * @visibleName Push Button 🎉
  */
 export default function PushButton({ color, size, children }) {
 	const styles = {

loaders/utils/__tests__/getProps.spec.js

@@ -161,3 +161,20 @@ it('should guess a displayName for components that react-docgen was not able to
 	);
 	expect(result).toHaveProperty('displayName', 'YourComponent');
 });
+
+describe('with @visibleName tag present in the description', () => {
+	const result = getProps({
+		description: 'bar\n@visibleName foo',
+	});
+	it('should set visibleName property on the docs object', () => {
+		expect(result).toHaveProperty('visibleName', 'foo');
+	});
+
+	it('should delete visibleName from doclets on the docs object', () => {
+		expect(result.doclets).not.toHaveProperty('visibleName');
+	});
+
+	it('should delete visibleName from tags on the docs object', () => {
+		expect(result.tags).not.toHaveProperty('visibleName');
+	});
+});

loaders/utils/getProps.js

@@ -106,5 +106,16 @@ module.exports = function getProps(doc, filepath) {
 		doc.displayName = getNameFromFilePath(filepath);
 	}
 
+	if (doc.doclets && doc.doclets.visibleName) {
+		doc.visibleName = doc.doclets.visibleName;
+
+		// custom tag is added both to doclets and tags
+		// removing from both locations
+		delete doc.doclets.visibleName;
+		if (doc.tags) {
+			delete doc.tags.visibleName;
+		}
+	}
+
 	return doc;
 };

src/rsg-components/ComponentsList/ComponentsList.spec.js

@@ -5,10 +5,12 @@ import { ComponentsListRenderer } from './ComponentsListRenderer';
 it('should set the correct href for items', () => {
 	const components = [
 		{
+			visibleName: 'Button',
 			name: 'Button',
 			slug: 'button',
 		},
 		{
+			visibleName: 'Input',
 			name: 'Input',
 			slug: 'input',
 		},
@@ -21,10 +23,12 @@ it('should set the correct href for items', () => {
 it('should set a parameter on link when useHashId is activated', () => {
 	const components = [
 		{
+			visibleName: 'Button',
 			name: 'Button',
 			slug: 'button',
 		},
 		{
+			visibleName: 'Input',
 			name: 'Input',
 			slug: 'input',
 		},
@@ -69,12 +73,12 @@ it('should set a sub route on link when useHashId is deactivated', () => {
 it('should render sections with nested components', () => {
 	const components = [
 		{
-			name: 'Button',
+			visibleName: 'Button',
 			slug: 'button',
 			href: '#button',
 		},
 		{
-			name: 'Input',
+			visibleName: 'Input',
 			slug: 'input',
 			href: '#input',
 		},
@@ -90,10 +94,10 @@ it('should return null when the list is empty', () => {
 	expect(actual.getElement()).toBe(null);
 });
 
-it('should ignore items without name', () => {
+it('should ignore items without visibleName', () => {
 	const components = [
 		{
-			name: 'Button',
+			visibleName: 'Button',
 			slug: 'button',
 			href: '#button',
 		},

src/rsg-components/ComponentsList/ComponentsListRenderer.js

@@ -34,21 +34,21 @@ const styles = ({ color, fontFamily, fontSize, space, mq }) => ({
 });
 
 export function ComponentsListRenderer({ classes, items }) {
-	items = items.filter(item => item.name);
+	items = items.filter(item => item.visibleName);
 
 	if (!items.length) {
 		return null;
 	}
 
 	return (
 		<ul className={classes.list}>
-			{items.map(({ heading, name, href, content }) => (
+			{items.map(({ heading, visibleName, href, content }) => (
 				<li
 					className={cx(classes.item, (!content || !content.props.items.length) && classes.isChild)}
 					key={href}
 				>
 					<Link className={cx(heading && classes.heading)} href={href}>
-						{name}
+						{visibleName}
 					</Link>
 					{content}
 				</li>

src/rsg-components/ComponentsList/__snapshots__/ComponentsList.spec.js.snap

@@ -1,6 +1,6 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`should ignore items without name 1`] = `
+exports[`should ignore items without visibleName 1`] = `
 <ul>
   <li
     className=""
@@ -52,11 +52,13 @@ exports[`should set a parameter on link when useHashId is activated 1`] = `
         "href": "blank#/Components?id=button",
         "name": "Button",
         "slug": "button",
+        "visibleName": "Button",
       },
       Object {
         "href": "blank#/Components?id=input",
         "name": "Input",
         "slug": "input",
+        "visibleName": "Input",
       },
     ]
   }
@@ -92,11 +94,13 @@ exports[`should set the correct href for items 1`] = `
         "href": "blank#button",
         "name": "Button",
         "slug": "button",
+        "visibleName": "Button",
       },
       Object {
         "href": "blank#input",
         "name": "Input",
         "slug": "input",
+        "visibleName": "Input",
       },
     ]
   }

src/rsg-components/ReactComponent/ReactComponent.js

@@ -50,7 +50,7 @@ export default class ReactComponent extends Component {
 			config: { pagePerSection },
 		} = this.context;
 		const { component, depth, usageMode, exampleMode } = this.props;
-		const { name, slug, filepath, pathLine } = component;
+		const { name, visibleName, slug, filepath, pathLine } = component;
 		const { description, examples = [], tags = {} } = component.props;
 		if (!name) {
 			return null;
@@ -77,7 +77,7 @@ export default class ReactComponent extends Component {
 						}}
 						depth={depth}
 					>
-						{name}
+						{visibleName}
 					</SectionHeading>
 				}
 				examples={

src/rsg-components/ReactComponent/ReactComponent.spec.js

@@ -21,6 +21,7 @@ const options = {
 
 const component = {
 	name: 'Foo',
+	visibleName: 'Foo',
 	slug: 'foo',
 	pathLine: 'foo/bar.js',
 	props: {
@@ -32,6 +33,7 @@ const component = {
 };
 const componentWithEverything = {
 	name: 'Foo',
+	visibleName: 'Foo',
 	slug: 'foo',
 	pathLine: 'foo/bar.js',
 	props: {

src/rsg-components/ReactComponent/__snapshots__/ReactComponent.spec.js.snap

@@ -84,6 +84,7 @@ exports[`ReactComponent should pass rendered description, usage, examples, etc.
             ],
           },
           "slug": "foo",
+          "visibleName": "Foo",
         }
       }
     >
@@ -142,6 +143,7 @@ exports[`ReactComponent should pass rendered description, usage, examples, etc.
             ],
           },
           "slug": "foo",
+          "visibleName": "Foo",
         }
       }
     />
@@ -195,6 +197,7 @@ exports[`ReactComponent should pass rendered description, usage, examples, etc.
             ],
           },
           "slug": "foo",
+          "visibleName": "Foo",
         }
       }
     />

src/utils/__tests__/__snapshots__/renderStyleguide.spec.js.snap

@@ -17,6 +17,7 @@ exports[`renderStyleguide should render StyleGuide component 1`] = `
                   "displayName": "Button",
                   "examples": Array [],
                 },
+                "visibleName": "Button",
               },
               Object {
                 "module": "ImageModule",
@@ -25,6 +26,7 @@ exports[`renderStyleguide should render StyleGuide component 1`] = `
                   "displayName": "Image",
                   "examples": Array [],
                 },
+                "visibleName": "Image",
               },
             ],
             "sections": Array [],
@@ -48,6 +50,7 @@ exports[`renderStyleguide should render StyleGuide component 1`] = `
                 "displayName": "Button",
                 "examples": Array [],
               },
+              "visibleName": "Button",
             },
             Object {
               "module": "ImageModule",
@@ -56,6 +59,7 @@ exports[`renderStyleguide should render StyleGuide component 1`] = `
                 "displayName": "Image",
                 "examples": Array [],
               },
+              "visibleName": "Image",
             },
           ],
           "sections": Array [],

src/utils/__tests__/processComponents.spec.js

@@ -15,6 +15,35 @@ describe('processComponents', () => {
 		expect(result[0].name).toBe('Foo');
 	});
 
+	describe('should set visibleName property on the component', () => {
+		it('from an visibleName component prop if available', () => {
+			const components = deepfreeze([
+				{
+					props: {
+						displayName: 'Foo',
+						visibleName: 'Foo Bar',
+					},
+					module: 13,
+				},
+			]);
+			const result = processComponents(components);
+			expect(result[0].visibleName).toBe('Foo Bar');
+		});
+
+		it('from an displayName component prop if visibleName prop is not available', () => {
+			const components = deepfreeze([
+				{
+					props: {
+						displayName: 'Foo',
+					},
+					module: 13,
+				},
+			]);
+			const result = processComponents(components);
+			expect(result[0].visibleName).toBe('Foo');
+		});
+	});
+
 	it('should append @example doclet to all examples', () => {
 		const components = deepfreeze([
 			{

src/utils/processComponents.js

@@ -12,6 +12,7 @@ export default function processComponents(components) {
 
 			// Add .name shortcuts for names instead of .props.displayName.
 			name: component.props.displayName,
+			visibleName: component.props.visibleName || component.props.displayName,
 
 			props: {
 				...component.props,