Make tabs clickable

packages/mdx/src/client/code.tsx

@@ -3,9 +3,26 @@ import { CodeSpring } from "@code-hike/smooth-code"
 import {
   EditorSpring,
   EditorProps,
+  EditorStep,
 } from "@code-hike/mini-editor"
 
 export function Code(props: EditorProps) {
+  const [step, setStep] = React.useState(props)
+
+  function onTabClick(filename: string) {
+    const newStep = updateEditorStep(step, filename, null)
+    setStep({ ...step, ...newStep })
+  }
+
+  return <InnerCode {...step} onTabClick={onTabClick} />
+}
+
+export function InnerCode({
+  onTabClick,
+  ...props
+}: EditorProps & {
+  onTabClick?: (filename: string) => void
+}) {
   if (
     !props.southPanel &&
     props.files.length === 1 &&
@@ -19,6 +36,39 @@ export function Code(props: EditorProps) {
       />
     )
   } else {
-    return <EditorSpring {...props} />
+    const frameProps = {
+      ...props?.frameProps,
+      onTabClick,
+    }
+    return (
+      <EditorSpring {...props} frameProps={frameProps} />
+    )
+  }
+}
+
+export function updateEditorStep(
+  step: EditorStep,
+  filename: string | undefined,
+  focus: string | null
+): EditorStep {
+  const name = filename || step.northPanel.active
+  const newFiles = step.files.map((file: any) =>
+    file.name === name
+      ? {
+          ...file,
+          focus: focus === null ? file.focus : focus,
+        }
+      : file
+  )
+
+  let northPanel = { ...step.northPanel }
+  let southPanel = step.southPanel && {
+    ...step.southPanel,
+  }
+  if (step.northPanel.tabs.includes(name)) {
+    northPanel.active = name
+  } else if (southPanel) {
+    southPanel.active = name
   }
+  return { files: newFiles, northPanel, southPanel }
 }

packages/mdx/src/client/scrollycoding.tsx

@@ -3,7 +3,7 @@ import {
   EditorProps,
   EditorStep,
 } from "@code-hike/mini-editor"
-import { Code } from "./code"
+import { InnerCode, updateEditorStep } from "./code"
 import {
   Scroller,
   Step as ScrollerStep,
@@ -25,12 +25,26 @@ export function Scrollycoding({
 }) {
   const stepsChildren = React.Children.toArray(children)
 
-  const [stepIndex, setIndex] = React.useState(start)
-  const tab = editorSteps[stepIndex]
+  const [state, setState] = React.useState({
+    stepIndex: start,
+    step: editorSteps[start],
+  })
+
+  const tab = state.step
 
   function onStepChange(index: number) {
-    setIndex(index)
+    setState({ stepIndex: index, step: editorSteps[index] })
+  }
+
+  function onTabClick(filename: string) {
+    const newStep = updateEditorStep(
+      state.step,
+      filename,
+      null
+    )
+    setState({ ...state, step: newStep })
   }
+
   return (
     <section
       className={`ch-scrollycoding ${
@@ -44,10 +58,10 @@ export function Scrollycoding({
               as="div"
               key={i}
               index={i}
-              onClick={() => setIndex(i)}
+              onClick={() => onStepChange(i)}
               className="ch-scrollycoding-step-content"
               data-selected={
-                i === stepIndex ? "true" : undefined
+                i === state.stepIndex ? "true" : undefined
               }
             >
               {children}
@@ -56,7 +70,11 @@ export function Scrollycoding({
         </Scroller>
       </div>
       <div className="ch-scrollycoding-sticker">
-        <Code {...(tab as any)} codeConfig={codeConfig} />
+        <InnerCode
+          {...(tab as any)}
+          codeConfig={codeConfig}
+          onTabClick={onTabClick}
+        />
         {presetConfig && (
           <Preview
             className="ch-scrollycoding-preview"

packages/mdx/src/client/section.tsx

@@ -1,13 +1,13 @@
 import React from "react"
 import { EditorProps } from "@code-hike/mini-editor"
-import { Code } from "./code"
+import { InnerCode, updateEditorStep } from "./code"
 
 const SectionContext = React.createContext<{
   props: EditorProps
   selectedId?: string
   setFocus: (x: {
     fileName?: string
-    focus: string
+    focus: string | null
     id: string
   }) => void
   resetFocus: () => void
@@ -33,30 +33,14 @@ export function Section({
     id,
   }: {
     fileName?: string
-    focus: string
+    focus: string | null
     id: string
   }) => {
-    const name = fileName || state.northPanel.active
-
-    const newFiles = state.files.map((file: any) =>
-      file.name === name ? { ...file, focus } : file
-    )
-
-    let northPanel = { ...state.northPanel }
-    let southPanel = state.southPanel && {
-      ...state.northPanel,
-    }
-    if (state.northPanel.tabs.includes(name)) {
-      northPanel.active = name
-    } else if (southPanel) {
-      southPanel.active = name
-    }
+    const newStep = updateEditorStep(state, fileName, focus)
 
     setState({
       ...state,
-      files: newFiles,
-      northPanel,
-      southPanel,
+      ...newStep,
       selectedId: id,
     })
   }
@@ -78,8 +62,15 @@ export function Section({
 }
 
 export function SectionCode() {
-  const { props } = React.useContext(SectionContext)
-  return <Code {...props} />
+  const { props, setFocus } = React.useContext(
+    SectionContext
+  )
+
+  const onTabClick = (filename: string) => {
+    setFocus({ fileName: filename, focus: null, id: "" })
+  }
+
+  return <InnerCode {...props} onTabClick={onTabClick} />
 }
 
 export function SectionLink({

packages/mdx/src/client/spotlight.tsx

@@ -3,7 +3,7 @@ import {
   EditorProps,
   EditorStep,
 } from "@code-hike/mini-editor"
-import { Code } from "./code"
+import { InnerCode, updateEditorStep } from "./code"
 import { Preview, PresetConfig } from "./preview"
 
 export function Spotlight({
@@ -21,8 +21,20 @@ export function Spotlight({
 }) {
   const stepsChildren = React.Children.toArray(children)
 
-  const [stepIndex, setIndex] = React.useState(start)
-  const tab = editorSteps[stepIndex]
+  const [state, setState] = React.useState({
+    stepIndex: start,
+    step: editorSteps[start],
+  })
+  const tab = state.step
+
+  function onTabClick(filename: string) {
+    const newStep = updateEditorStep(
+      state.step,
+      filename,
+      null
+    )
+    setState({ ...state, step: newStep })
+  }
 
   const headerElement = stepsChildren[0] as React.ReactElement
 
@@ -40,10 +52,15 @@ export function Spotlight({
           i === 0 ? null : (
             <div
               key={i}
-              onClick={() => setIndex(i)}
+              onClick={() =>
+                setState({
+                  stepIndex: i,
+                  step: editorSteps[i],
+                })
+              }
               className="ch-spotlight-tab"
               data-selected={
-                i === stepIndex ? "true" : undefined
+                i === state.stepIndex ? "true" : undefined
               }
             >
               {children}
@@ -52,7 +69,11 @@ export function Spotlight({
         )}
       </div>
       <div className="ch-spotlight-sticker">
-        <Code {...(tab as any)} codeConfig={codeConfig} />
+        <InnerCode
+          {...(tab as any)}
+          codeConfig={codeConfig}
+          onTabClick={onTabClick}
+        />
         {presetConfig && (
           <Preview
             className="ch-spotlight-preview"

packages/mini-editor/src/editor-frame.tsx

@@ -36,6 +36,7 @@ type EditorFrameProps = {
   height?: number
   button?: React.ReactNode
   classes?: Classes
+  onTabClick?: (filename: string) => void
 } & React.PropsWithoutRef<JSX.IntrinsicElements["div"]>
 
 export const EditorFrame = React.forwardRef<
@@ -51,6 +52,7 @@ export const EditorFrame = React.forwardRef<
     button,
     theme,
     className,
+    onTabClick,
     ...rest
   },
   ref
@@ -76,6 +78,7 @@ export const EditorFrame = React.forwardRef<
           button={button}
           panel="north"
           theme={theme}
+          onTabClick={onTabClick}
         />
       }
       {...rest}
@@ -105,6 +108,7 @@ export const EditorFrame = React.forwardRef<
               topBorder={true}
               panel="south"
               theme={theme}
+              onTabClick={onTabClick}
             />
           </div>
           <div
@@ -130,6 +134,7 @@ type TabsContainerProps = {
   topBorder?: boolean
   panel: "north" | "south"
   theme: EditorTheme
+  onTabClick?: (filename: string) => void
 }
 function TabsContainer({
   tabs,
@@ -138,6 +143,7 @@ function TabsContainer({
   topBorder,
   panel,
   theme,
+  onTabClick,
 }: TabsContainerProps) {
   const c = useClasser("ch-editor-tab")
   return (
@@ -189,6 +195,7 @@ function TabsContainer({
                 : ColorName.InactiveTabBackground
             ),
           }}
+          onClick={onTabClick && (() => onTabClick(title))}
         >
           <div>{title}</div>
         </div>

packages/playground/content/scrollycoding-demo.mdx

@@ -16,6 +16,8 @@ Lorem ipsum dolor sit amet, consectetur adipiscing something about points, sed d
 
 Praesent elementum facilisis leo vel fringilla est ullamcorper eget. At imperdiet dui accumsan sit amet nulla facilities morbi tempus.
 
+<CH.Code>
+
 ```js app.js focus=3:10
 const { lorem, ipsum } = dolor({
   sit: {
@@ -53,6 +55,14 @@ const { lorem, ipsum } = dolor({
 })
 ```
 
+```css styles.css
+.lorem {
+  color: red;
+}
+```
+
+</CH.Code>
+
 ---
 
 ## Step 2