Addon-docs: Basic skeleton, UI viewMode handling

addons/docs/README.md

@@ -0,0 +1,3 @@
+# Storybook Docs
+
+Living documentation for your components.

addons/docs/package.json

@@ -0,0 +1,39 @@
+{
+  "name": "@storybook/addon-docs",
+  "version": "5.2.0-alpha.23",
+  "description": "Superior documentation for your components",
+  "keywords": [
+    "addon",
+    "notes",
+    "storybook"
+  ],
+  "homepage": "https://github.com/storybookjs/storybook/tree/master/addons/docs",
+  "bugs": {
+    "url": "https://github.com/storybookjs/storybook/issues"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/storybookjs/storybook.git",
+    "directory": "addons/docs"
+  },
+  "license": "MIT",
+  "main": "dist/public_api.js",
+  "types": "dist/public_api.d.ts",
+  "scripts": {
+    "prepare": "node ../../scripts/prepare.js"
+  },
+  "dependencies": {
+    "@storybook/addons": "5.2.0-alpha.23",
+    "@storybook/api": "5.2.0-alpha.23"
+  },
+  "devDependencies": {
+    "@types/util-deprecate": "^1.0.0",
+    "@types/webpack-env": "^1.13.7"
+  },
+  "peerDependencies": {
+    "react": "*"
+  },
+  "publishConfig": {
+    "access": "public"
+  }
+}

addons/docs/register.js

@@ -0,0 +1 @@
+require('./dist/register.js');

addons/docs/src/register.ts

@@ -0,0 +1,12 @@
+import addons, { types } from '@storybook/addons';
+import { ADDON_ID, PANEL_ID } from './shared';
+
+addons.register(ADDON_ID, api => {
+  addons.add(PANEL_ID, {
+    type: types.TAB,
+    title: 'Docs',
+    route: ({ storyId }) => `/docs/${storyId}`,
+    match: ({ viewMode }) => viewMode === 'docs',
+    render: () => null,
+  });
+});

addons/docs/src/shared.ts

@@ -0,0 +1,3 @@
+export const ADDON_ID = 'storybook/docs';
+export const PANEL_ID = `${ADDON_ID}/panel`;
+export const PARAM_KEY = `docs`;

addons/docs/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "../../tsconfig.json",
+  "compilerOptions": {
+    "rootDir": "./src",
+    "types": ["webpack-env"]
+  },
+  "include": ["src/**/*"],
+  "exclude": ["src/**.test.ts"]
+}

examples/official-storybook/addons.js

@@ -1,5 +1,6 @@
 import '@storybook/addon-storysource/register';
 import '@storybook/addon-design-assets/register';
+import '@storybook/addon-docs/register';
 import '@storybook/addon-actions/register';
 import '@storybook/addon-links/register';
 import '@storybook/addon-events/register';

examples/official-storybook/package.json

@@ -22,6 +22,7 @@
     "@storybook/addon-contexts": "5.2.0-alpha.23",
     "@storybook/addon-cssresources": "5.2.0-alpha.23",
     "@storybook/addon-design-assets": "5.2.0-alpha.23",
+    "@storybook/addon-docs": "5.2.0-alpha.23",
     "@storybook/addon-events": "5.2.0-alpha.23",
     "@storybook/addon-graphql": "5.2.0-alpha.23",
     "@storybook/addon-info": "5.2.0-alpha.23",

examples/official-storybook/stories/__snapshots__/addon-docs.stories.storyshot

@@ -0,0 +1,7 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`Storyshots Addons|Docs default 1`] = `
+<div>
+  Click the docs tab to see the docs
+</div>
+`;

examples/official-storybook/stories/addon-docs.stories.js

@@ -0,0 +1,8 @@
+import React from 'react';
+import { storiesOf } from '@storybook/react';
+
+storiesOf('Addons|Docs', module)
+  .addParameters({
+    docs: () => <div>Hello docs</div>,
+  })
+  .add('default', () => <div>Click the docs tab to see the docs</div>);

lib/client-api/src/story_store.js

@@ -83,8 +83,8 @@ export default class StoryStore extends EventEmitter {
     );
   }
 
-  setSelection = ({ storyId }) => {
-    this._selection = { storyId };
+  setSelection = ({ storyId, viewMode }) => {
+    this._selection = { storyId, viewMode };
     setTimeout(() => this.emit(Events.STORY_RENDER), 1);
   };
 

lib/core/src/client/preview/start.js

@@ -1,3 +1,6 @@
+import React from 'react';
+import ReactDOM from 'react-dom';
+
 import addons from '@storybook/addons';
 import { navigator, window, document } from 'global';
 import createChannel from '@storybook/channel-postmessage';
@@ -119,52 +122,60 @@ export default function start(render, { decorateStory } = {}) {
   let previousKind = '';
   let previousStory = '';
   let previousRevision = -1;
+  let previousViewMode = '';
 
   const renderMain = forceRender => {
     const revision = storyStore.getRevision();
-    const { storyId } = storyStore.getSelection();
-
+    const { storyId, viewMode } = storyStore.getSelection();
     const data = storyStore.fromId(storyId);
-
-    const { kind, name, getDecorated, id } = data || {};
+    const { kind, name, getDecorated, id, parameters } = data || {};
 
     const renderContext = {
       ...context,
       ...data,
       selectedKind: kind,
       selectedStory: name,
+      parameters,
       forceRender,
     };
 
-    if (getDecorated) {
-      // Render story only if selectedKind or selectedStory have changed.
-      // However, we DO want the story to re-render if the store itself has changed
-      // (which happens at the moment when HMR occurs)
-      if (
-        !forceRender &&
-        revision === previousRevision &&
-        kind === previousKind &&
-        previousStory === name
-      ) {
-        addons.getChannel().emit(Events.STORY_UNCHANGED, id);
-        return;
-      }
-
-      if (!forceRender && previousKind && previousStory) {
-        addons.getChannel().emit(Events.STORY_CHANGED, id);
-      }
+    // Render story only if selectedKind or selectedStory have changed.
+    // However, we DO want the story to re-render if the store itself has changed
+    // (which happens at the moment when HMR occurs)
+    if (
+      !forceRender &&
+      revision === previousRevision &&
+      viewMode === previousViewMode &&
+      kind === previousKind &&
+      name === previousStory
+    ) {
+      addons.getChannel().emit(Events.STORY_UNCHANGED, id);
+      return;
+    }
 
-      previousRevision = revision;
-      previousKind = kind;
-      previousStory = name;
+    if (!forceRender && previousKind && previousStory) {
+      addons.getChannel().emit(Events.STORY_CHANGED, id);
+    }
 
-      render(renderContext);
-      addons.getChannel().emit(Events.STORY_RENDERED, id);
-    } else {
-      showNopreview();
-      addons.getChannel().emit(Events.STORY_MISSING, id);
+    if (viewMode === 'docs') {
+      const NoDocs = () => <div style={{ fontFamily: 'sans-serif' }}>No docs found</div>;
+      const StoryDocs = (parameters && parameters.docs) || NoDocs;
+      ReactDOM.render(<StoryDocs context={renderContext} />, document.getElementById('root'));
+    } else if (!viewMode || viewMode === 'story') {
+      if (getDecorated) {
+        render(renderContext);
+        addons.getChannel().emit(Events.STORY_RENDERED, id);
+      } else {
+        showNopreview();
+        addons.getChannel().emit(Events.STORY_MISSING, id);
+      }
     }
 
+    previousRevision = revision;
+    previousKind = kind;
+    previousStory = name;
+    previousViewMode = viewMode;
+
     if (!forceRender) {
       document.documentElement.scrollTop = 0;
     }
@@ -191,7 +202,7 @@ export default function start(render, { decorateStory } = {}) {
     );
 
     channel.on(Events.FORCE_RE_RENDER, forceReRender);
-    channel.on(Events.SET_CURRENT_STORY, ({ storyId: inputStoryId, name, kind }) => {
+    channel.on(Events.SET_CURRENT_STORY, ({ storyId: inputStoryId, name, kind, viewMode }) => {
       let storyId = inputStoryId;
       // For backwards compatibility
       if (!storyId) {
@@ -201,8 +212,8 @@ export default function start(render, { decorateStory } = {}) {
         storyId = deprecatedToId(kind, name);
       }
 
-      storyStore.setSelection({ storyId });
-      setPath({ storyId });
+      storyStore.setSelection({ storyId, viewMode });
+      setPath({ storyId, viewMode });
     });
 
     // Handle keyboard shortcuts
@@ -218,8 +229,8 @@ export default function start(render, { decorateStory } = {}) {
   }
 
   storyStore.on(Events.STORY_INIT, () => {
-    const { storyId } = initializePath();
-    storyStore.setSelection({ storyId });
+    const { storyId, viewMode } = initializePath();
+    storyStore.setSelection({ storyId, viewMode });
   });
 
   storyStore.on(Events.STORY_RENDER, renderUI);

lib/core/src/client/preview/url.js

@@ -10,11 +10,15 @@ export function pathToId(path) {
   return match[1];
 }
 
-export const setPath = ({ storyId }) => {
+export const setPath = ({ storyId, viewMode }) => {
   const { path, selectedKind, selectedStory, ...rest } = qs.parse(document.location.search, {
     ignoreQueryPrefix: true,
   });
-  const newPath = `${document.location.pathname}?${qs.stringify({ ...rest, id: storyId })}`;
+  const newPath = `${document.location.pathname}?${qs.stringify({
+    ...rest,
+    id: storyId,
+    viewMode,
+  })}`;
   history.replaceState({}, '', newPath);
 };
 
@@ -28,11 +32,11 @@ export const parseQueryParameters = search => {
 
 export const initializePath = () => {
   const query = qs.parse(document.location.search, { ignoreQueryPrefix: true });
-  let { id: storyId } = query;
+  let { id: storyId, viewMode } = query; // eslint-disable-line prefer-const
   if (!storyId) {
     storyId = getIdFromLegacyQuery(query);
     if (storyId) {
-      setPath({ storyId });
+      setPath({ storyId, viewMode });
     }
   }
   return { storyId };

lib/ui/src/app.js

@@ -66,7 +66,7 @@ const App = React.memo(({ viewMode, layout, size: { width, height } }) => {
   );
 });
 App.propTypes = {
-  viewMode: PropTypes.oneOf(['story', 'info']),
+  viewMode: PropTypes.oneOf(['story', 'info', 'docs']),
   layout: PropTypes.shape({}).isRequired,
   size: PropTypes.shape({
     width: PropTypes.number,

lib/ui/src/components/layout/container.js

@@ -546,7 +546,7 @@ Layout.propTypes = {
     showPanel: PropTypes.bool.isRequired,
     panelPosition: PropTypes.string.isRequired,
   }).isRequired,
-  viewMode: PropTypes.oneOf(['story', 'info']),
+  viewMode: PropTypes.oneOf(['story', 'info', 'docs']),
   theme: PropTypes.shape({}).isRequired,
 };
 Layout.defaultProps = {

lib/ui/src/components/layout/desktop.js

@@ -65,7 +65,7 @@ Desktop.propTypes = {
     panelPosition: PropTypes.string.isRequired,
     isToolshown: PropTypes.bool.isRequired,
   }).isRequired,
-  viewMode: PropTypes.oneOf(['story', 'info']),
+  viewMode: PropTypes.oneOf(['story', 'info', 'docs']),
 };
 Desktop.defaultProps = {
   viewMode: undefined,

lib/ui/src/components/layout/mobile.js

@@ -201,7 +201,7 @@ Mobile.propTypes = {
       render: PropTypes.func.isRequired,
     })
   ).isRequired,
-  viewMode: PropTypes.oneOf(['story', 'info']),
+  viewMode: PropTypes.oneOf(['story', 'info', 'docs']),
   options: PropTypes.shape({
     initialActive: PropTypes.number,
   }).isRequired,

lib/ui/src/components/preview/__snapshots__/preview.stories.storyshot

@@ -347,7 +347,7 @@ Array [
           allowfullscreen=""
           id="storybook-preview-iframe"
           scrolling="yes"
-          src="http://example.com?id=string"
+          src="http://example.com?id=string&viewMode=story"
           title="string"
         />
       </div>
@@ -403,7 +403,7 @@ Array [
   margin-left: 0;
 }
 
-.emotion-2 {
+.emotion-0 {
   white-space: normal;
   display: -webkit-inline-box;
   display: -webkit-inline-flex;
@@ -439,51 +439,6 @@ Array [
   border-bottom-color: transparent;
 }
 
-.emotion-2:empty {
-  display: none;
-}
-
-.emotion-2:focus {
-  outline: 0 none;
-  border-bottom-color: #1EA7FD;
-}
-
-.emotion-0 {
-  white-space: normal;
-  display: -webkit-inline-box;
-  display: -webkit-inline-flex;
-  display: -ms-inline-flexbox;
-  display: inline-flex;
-  overflow: hidden;
-  vertical-align: top;
-  -webkit-box-pack: center;
-  -webkit-justify-content: center;
-  -ms-flex-pack: center;
-  justify-content: center;
-  -webkit-align-items: center;
-  -webkit-box-align: center;
-  -ms-flex-align: center;
-  align-items: center;
-  text-align: center;
-  -webkit-text-decoration: none;
-  text-decoration: none;
-  padding: 0 15px;
-  text-transform: capitalize;
-  -webkit-transition: color 0.2s linear,border-bottom-color 0.2s linear;
-  transition: color 0.2s linear,border-bottom-color 0.2s linear;
-  height: 40px;
-  line-height: 12px;
-  cursor: pointer;
-  background: transparent;
-  border: 0 solid transparent;
-  border-top: 3px solid transparent;
-  border-bottom: 3px solid transparent;
-  font-weight: bold;
-  font-size: 13px;
-  color: #1EA7FD;
-  border-bottom-color: #1EA7FD;
-}
-
 .emotion-0:empty {
   display: none;
 }
@@ -644,7 +599,7 @@ Array [
                       href="/?path=/info/string"
                     >
                       <button
-                        class="emotion-2"
+                        class="emotion-0"
                       >
                         Notes
                       </button>
@@ -835,7 +790,7 @@ Array [
           allowfullscreen=""
           id="storybook-preview-iframe"
           scrolling="yes"
-          src="http://example.com?id=string"
+          src="http://example.com?id=string&viewMode=story"
           title="string"
         />
       </div>