(basic) meta inheritance
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app.tsx
14
app.tsx
@ -1,10 +1,4 @@
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import {Route, useRoute} from ">able/iso-router.tsx";
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const Tracer =()=>
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{
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const {nestedDepth, pathIndex, blocked} = useRoute();
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return <div>Depth: {nestedDepth}, Index:{pathIndex}, Match:{blocked.value}</div>
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}
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import {Route, useRoute, Meta} from ">able/iso-router.tsx";
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export default ()=><div>
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<h1 class="p-4 bg-red-500 text-white">App</h1>
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@ -13,6 +7,7 @@ export default ()=><div>
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<a href="/about">About</a>
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<a href="/404">404</a>
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</nav>
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<Meta title="default title"/>
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<Route path={[]}><p>home page!</p></Route>
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<Route path={["about"]}>
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<nav class="flex gap-10 p-6">
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@ -21,7 +16,10 @@ export default ()=><div>
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</nav>
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<Route path={[]}><p>About page!</p></Route>
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<Route path={["more"]}><p>more!</p></Route>
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<Route><span>couldnt find it</span></Route>
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<Route>
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<Meta title="about error!"/>
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<span>couldnt find it</span>
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</Route>
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</Route>
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<Route><p>404 :(</p></Route>
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</div>;
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@ -2,17 +2,40 @@ import * as Signal from "@preact/signals";
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import * as React from "react";
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///////// Metas
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type MetaFields = {title?:string, description?:string};
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type MetaRecord = MetaFields&{id:string}
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type MetaFields = {title?:string, description?:string}
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type MetaRecord = MetaFields&{id:string, baked?:MetaFields}
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const Stack = [] as MetaRecord[];
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const StackPush =(m:MetaRecord)=> {Stack.push(m); Update();}
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const StackPush =(m:MetaRecord)=>
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{
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m.baked = {...(Stack.at(-1)?.baked || {}), ...m};
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/*
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const previous = Stack.at(-1)?.baked;
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if(previous)
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{
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Object.entries(previous).forEach(([key, prevValue], i)=>
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{
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const fields = m.baked as Record<string, string>;
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const currValue = fields[key];
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if(currValue)
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{
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}
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fields[key] = prevValue + concat + currValue;
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})
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}
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*/
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Stack.push(m); Update();
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}
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const StackPop =(id:string)=> {Stack.splice(Stack.findIndex( item => item.id === id ), 1); Update();}
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const Update =()=> document.title = Stack[Stack.length-1]?.title || "---";
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const Update =()=> document.title = Stack.at(-1)?.baked?.title || "---";
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Update();
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export const useMeta=(fields:MetaFields)=>
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{
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const id = React.useId();
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React.useEffect(()=>{
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StackPush({...fields, id});
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return ()=>StackPop(id);
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}, []);
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@ -20,7 +43,6 @@ export const useMeta=(fields:MetaFields)=>
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export const Meta =(props:MetaFields)=> { useMeta(props); return null; }
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//////// Router
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type RouteContextData = {
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/** Current nested depth of the router */ nestedDepth:number,
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