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FunctinDigith and focusTarget scrolling

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This commit is contained in:
Yura Dupyn 2026-02-14 22:41:53 +01:00
parent 8e4dcb5de7
commit b0280b9d74
10 changed files with 378 additions and 91 deletions
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5
src/ui/App.tsx
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@ -1,6 +1,5 @@
import { createSignal } from 'solid-js';
import { Scrowl } from './Scrowl';
import { Controls } from './Controls';
import { Sidebar } from './Sidebar';
export default function App() {
return (
@ -14,7 +13,7 @@ export default function App() {
}}
>
<Scrowl />
<Controls />
<Sidebar />
</main>
);
}

12
src/ui/Controls.tsx
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@ -1,4 +1,4 @@
import { spawnFunctionDraft } from "./scrowlStore";
import { spawnNewFunctionDraftDigith } from "./scrowlStore";
type Props = {
// TODO
@ -6,20 +6,14 @@ type Props = {
export function Controls(props: Props) {
return (
<aside
style={{
position: "sticky",
top: "2rem",
height: "fit-content"
}}
>
<aside>
<article>
<header>Controls</header>
<div style={{ display: "flex", gap: "0.5rem", "flex-wrap": "wrap" }}>
<button
class="outline secondary"
onClick={spawnFunctionDraft}
onClick={spawnNewFunctionDraftDigith}
style={{ padding: "2px 8px", "font-size": "0.8rem", width: "auto" }}
>
+fn

7
src/ui/Digith.tsx
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@ -1,4 +1,5 @@
import { FunctionName } from "src/lang/expr"
import { FunctionName } from "src/lang/expr";
import { DigithId } from "./scrowlStore";
export type Digith =
| Digith.Repl
@ -7,10 +8,12 @@ export type Digith =
export namespace Digith {
export type Repl = {
id: DigithId,
tag: "repl",
}
export type NewFunctionDraft = {
id: DigithId,
tag: "new-fn-draft",
raw_name: string,
raw_parameters: string,
@ -18,11 +21,11 @@ export namespace Digith {
}
export type Function = {
id: DigithId,
tag: "fn",
name: FunctionName,
raw_parameters: string,
raw_body: string,
is_loaded: boolean
}
}

161
src/ui/Function/FunctionDigith.tsx
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@ -2,12 +2,74 @@ import { createSignal, For, Match, Show, Switch } from "solid-js";
import { Digith } from "../Digith";
import { useProgram } from "../ProgramProvider";
import { CodeEditor } from "../CodeEditor";
import { ParseError, parseExpr, parseFunctionName, parseFunctionParameters } from "src/lang/parser/parser";
import { ParseError } from "src/lang/parser/parser";
import { sourceText, SourceText } from "src/lang/parser/source_text";
import { Expr, FunctionName, ProductPattern } from "src/lang/expr";
import { ShowParseError } from "../ParseError";
import { Program } from "src/lang/program";
import { V, Validation, letValidate } from "../validation";
import { V, letValidate } from "../validation";
import { ProgramErrorDisplay, validateExprRaw, validateParamsRaw } from "./Helpers";
import { updateDigith } from "../scrowlStore";
type UpdateFnError =
| { tag: "Parse", field: "params" | "body", err: ParseError, src: SourceText }
| { tag: "Program", err: Program.Error }
const validator = letValidate(
(input: { raw_params: string, raw_body: string }) => ({
parameters: V.elseErr(validateParamsRaw(input.raw_params), err => ({ tag: "Parse", field: "params", err, src: sourceText(input.raw_params) })),
body: V.elseErr(validateExprRaw(input.raw_body), err => ({ tag: "Parse", field: "body", err, src: sourceText(input.raw_body) })),
}),
(fields, input) => {
return V.ok({
parameters: fields.parameters,
body: fields.body,
raw_parameters: input.raw_params,
raw_body: input.raw_body
});
}
);
const fieldLabels: Record<string, string> = {
params: "Parameters",
body: "Function Body"
};
function SingleErrorDisplay(props: { error: UpdateFnError }) {
return (
<div style={{ "margin-bottom": "1rem" }}>
<Switch>
<Match
when={props.error.tag === "Parse" ? (props.error as Extract<UpdateFnError, { tag: "Parse" }>) : undefined}
>
{(err) => (
<article style={{ border: "1px solid var(--pico-del-color)", padding: "0.5rem 1rem" }}>
<header style={{ "margin-bottom": "0.5rem", color: "var(--pico-del-color)", "font-weight": "bold" }}>
{fieldLabels[err().field]} Error
</header>
<ShowParseError text={err().src} err={err().err} />
</article>
)}
</Match>
<Match
when={props.error.tag === "Program" ? (props.error as Extract<UpdateFnError, { tag: "Program" }>) : undefined}
>
{(err) => ( <ProgramErrorDisplay error={err().err} />)}
</Match>
</Switch>
</div>
);
}
function ErrorListDisplay(props: { errors: UpdateFnError[] }) {
return (
<div style={{ "margin-top": "2rem", "border-top": "1px solid var(--pico-muted-border-color)", "padding-top": "1rem" }}>
<For each={props.errors}>
{(error) => <SingleErrorDisplay error={error} />}
</For>
</div>
);
}
// TODO: What about renaming?
export function FunctionDigith(props: { function: Digith.Function }) {
@ -16,16 +78,97 @@ export function FunctionDigith(props: { function: Digith.Function }) {
const [params, setParams] = createSignal(props.function.raw_parameters);
const [body, setBody] = createSignal(props.function.raw_body);
const handleCommit = () => {
// TODO: Update the old function with new code
console.log(`Committing ${props.function.name} to the Program...`);
};
const [errors, setErrors] = createSignal<UpdateFnError[]>([]);
const isDirty = () =>
params() !== props.function.raw_parameters ||
body() !== props.function.raw_body;
function handleRedefine() {
setErrors([]);
const validRes = validator({ raw_params: params(), raw_body: body() });
if (validRes.tag === "errors") {
setErrors(validRes.errors as UpdateFnError[]);
return;
}
const updateData = validRes.value;
const progRes = Program.updateFunction(program, props.function.name, {
parameters: updateData.parameters,
body: updateData.body,
raw_parameters: updateData.raw_parameters,
raw_body: updateData.raw_body
});
if (progRes.tag === "error") {
setErrors([{ tag: "Program", err: progRes.error }]);
return;
}
// reloading the digith
updateDigith(props.function.id, {
...props.function,
raw_parameters: updateData.raw_parameters,
raw_body: updateData.raw_body
});
}
return (
<article>
<header><strong>Fn</strong></header>
<header>
<strong>Fn</strong>
{/* Dirty Indicator / Status */}
<div>
<Show when={isDirty()} fallback={<span style={{color: "var(--pico-muted-color)"}}>Synced</span>}>
<span style={{color: "var(--pico-primary)"}}>● Unsaved Changes</span>
</Show>
</div>
</header>
<div class="grid">
<label>
Name
<input
type="text"
value={props.function.name}
disabled
style={{ opacity: 0.7, cursor: "not-allowed" }}
/>
</label>
<label>
Parameters
<input
type="text"
value={params()}
onInput={(e) => setParams(e.currentTarget.value)}
/>
</label>
</div>
<label>Body</label>
<CodeEditor
value={body()}
onUpdate={setBody}
onRun={handleRedefine}
/>
<footer style={{ display: "flex", "align-items": "center", gap: "1rem" }}>
<button
onClick={handleRedefine}
disabled={!isDirty()}
class={isDirty() ? "" : "secondary outline"}
>
Redefine
</button>
</footer>
<Show when={errors().length > 0}>
<ErrorListDisplay errors={ errors() } />
</Show>
<div>TODO: Fn under construction</div>
</article>
);
}

86
src/ui/Function/NewFunctionDraftDigith.tsx
View file

@ -8,6 +8,7 @@ import { ShowParseError } from "../ParseError";
import { Program } from "src/lang/program";
import { V, Validation, letValidate } from "../validation";
import { ProgramErrorDisplay, validateExprRaw, validateNameRaw, validateParamsRaw } from "./Helpers";
import { spawnFunctionDigith } from "../scrowlStore";
type NewFnError =
@ -20,6 +21,29 @@ const fieldLabels: Record<string, string> = {
body: "Function Body"
};
type Input = {
raw_name: string,
raw_params: string,
raw_body: string,
}
const validator: Validation<Input, Program.CreateFunction, NewFnError> = letValidate(
(input: Input) =>({
name: V.elseErr(validateNameRaw(input.raw_name), err => ({ tag: "Parse", field: "name", err, src: sourceText(input.raw_name) })),
parameters: V.elseErr(validateParamsRaw(input.raw_params), err => ({ tag: "Parse", field: "params", err, src: sourceText(input.raw_params) })),
body: V.elseErr(validateExprRaw(input.raw_body), err => ({ tag: "Parse", field: "body", err, src: sourceText(input.raw_body) })),
}),
(fields, input) => {
const createFunction: Program.CreateFunction = {
name: fields.name,
parameters: fields.parameters,
body: fields.body,
raw_parameters: input.raw_params,
raw_body: input.raw_body,
};
return V.ok(createFunction);
})
export function SingleErrorDisplay(props: { error: NewFnError }) {
return (
<div style={{ "margin-bottom": "1rem" }}>
@ -65,52 +89,30 @@ export function NewFunctionDraftDigith(props: { draft: Digith.NewFunctionDraft }
const [params, setParams] = createSignal(props.draft.raw_parameters);
const [body, setBody] = createSignal(props.draft.raw_body);
const [validResult, setValidResult] = createSignal<V<void, NewFnError> | null>(null);
const [errors, setErrors] = createSignal<NewFnError[]>([]);
type Input = {
raw_name: string,
raw_params: string,
raw_body: string,
}
const validator: Validation<Input, void, NewFnError> = letValidate((input: Input) => ({
name: V.elseErr(validateNameRaw(input.raw_name), err => ({ tag: "Parse", field: "name", err, src: sourceText(input.raw_name) })),
parameters: V.elseErr(validateParamsRaw(input.raw_params), err => ({ tag: "Parse", field: "params", err, src: sourceText(input.raw_params) })),
body: V.elseErr(validateExprRaw(input.raw_body), err => ({ tag: "Parse", field: "body", err, src: sourceText(input.raw_body) })),
}),
(fields, input) => {
const createFunction: Program.CreateFunction = {
name: fields.name,
parameters: fields.parameters,
body: fields.body,
raw_parameters: input.raw_name,
raw_body: input.raw_body,
};
const regResult = Program.registerFunction(program, createFunction);
if (regResult.tag === "ok") {
// TODO: Side effects? Not sure about this. Ideally validator would be pure... but it is nice that we can return errors here.
// But then again... these are not really normal errors, right? or? But that's probably a misuse...
// For now we just return Ok
return V.ok(undefined);
} else {
return V.error({ tag: "Program", err: regResult.error });
}
});
// TODO: There's something wrong with this, it doesn't trigger when expected... WTF
function handleCommit() {
const result = validator({ raw_name: name(), raw_params: params(), raw_body: body() });
setValidResult(result);
if (result.tag === "ok") {
// Handle success closure here if needed
console.log("Function created successfully!");
setErrors([]);
const validRes = validator({ raw_name: name(), raw_params: params(), raw_body: body() });
if (validRes.tag === "errors") {
setErrors(validRes.errors as NewFnError[]);
return;
}
const createFunction = validRes.value;
const programRes = Program.registerFunction(program, createFunction);
if (programRes.tag === "error") {
setErrors([{ tag: "Program", err: programRes.error }]);
return;
}
const fnName = programRes.value;
spawnFunctionDigith(program, fnName, props.draft.id);
};
return (
<article>
<header><strong>Fn Draft</strong></header>
<header><strong>Fn (Draft)</strong></header>
<div class="grid">
<label>
@ -144,10 +146,8 @@ export function NewFunctionDraftDigith(props: { draft: Digith.NewFunctionDraft }
<button class="primary" onClick={handleCommit}>Commit</button>
</footer>
<Show when={validResult()?.tag === "errors"}>
<ErrorListDisplay
errors={(validResult() as { tag: "errors", errors: NewFnError[] }).errors}
/>
<Show when={errors().length > 0}>
<ErrorListDisplay errors={errors()} />
</Show>
</article>
);

0
src/ui/FunctionList.tsx Normal file
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10
src/ui/ProgramMeta.tsx Normal file
View file

@ -0,0 +1,10 @@
export function ProgramMeta(props: {}) {
return (
<aside>
<article>
<header>Controls</header>
</article>
</aside>
);
}

68
src/ui/Scrowl.tsx
View file

@ -1,6 +1,6 @@
import { For, Match, Switch } from "solid-js";
import { createEffect, For, Match, onMount, Switch } from "solid-js";
import { ExprREPL } from "./REPL";
import { scrowl } from "./scrowlStore";
import { clearFocus, DigithId, scrowl } from "./scrowlStore";
import { NewFunctionDraftDigith } from "./Function/NewFunctionDraftDigith";
import { FunctionDigith } from "./Function/FunctionDigith";
import { Digith } from "./Digith";
@ -13,11 +13,7 @@ import { Digith } from "./Digith";
// - Thinking of a prosthesis that's an extension of your body doing your bidding without you knowing exactly how.
// - digital
type Props = {
// TODO
}
export function Scrowl(props: Props) {
export function Scrowl() {
return (
<div
id="scrowl"
@ -29,22 +25,24 @@ export function Scrowl(props: Props) {
>
<For each={scrowl.digiths}>
{(digith) => (
<Switch>
<Match when={digith.tag === 'repl'}>
<article class="digith">
<header><strong>REPL</strong></header>
<ExprREPL />
</article>
</Match>
<DigithWrapper id={digith.id}>
<Switch>
<Match when={digith.tag === 'repl'}>
<article class="digith">
<header><strong>REPL</strong></header>
<ExprREPL />
</article>
</Match>
<Match when={digith.tag === 'new-fn-draft'}>
<NewFunctionDraftDigith draft={digith as Digith.NewFunctionDraft} />
</Match>
<Match when={digith.tag === 'new-fn-draft'}>
<NewFunctionDraftDigith draft={digith as Digith.NewFunctionDraft} />
</Match>
<Match when={digith.tag === 'fn'}>
<FunctionDigith function={digith as Digith.Function} />
</Match>
</Switch>
<Match when={digith.tag === 'fn'}>
<FunctionDigith function={digith as Digith.Function} />
</Match>
</Switch>
</DigithWrapper>
)}
</For>
@ -52,3 +50,31 @@ export function Scrowl(props: Props) {
);
}
// For focusing on a Digith
// This works basically in two ways:
// - We have the list of digiths, and each time any of them is mounted, there's `attemptScroll` check done on all of them.
// - Whenever `scrowl.focusTarget` changes, it reactively broadcasts the change to each of the digith,
// and each digith asks itself, "Am I focus-target?".
function DigithWrapper(props: { id: DigithId, children: any }) {
let ref: HTMLDivElement | undefined;
// The Logic: Run this whenever 'scrowl.focusTarget' changes OR when this component mounts
const attemptScroll = () => {
if (scrowl.focusTarget === props.id && ref) {
ref.scrollIntoView({ behavior: "smooth", block: "start" });
setTimeout(clearFocus, 0); // This sets asynchronously the focus-target to null.
}
};
onMount(attemptScroll);
createEffect(attemptScroll);
return (
<div
ref={ref}
style={{ "scroll-margin-top": "2rem" }}
>
{props.children}
</div>
);
}

19
src/ui/Sidebar.tsx Normal file
View file

@ -0,0 +1,19 @@
import { Controls } from "./Controls";
import { ProgramMeta } from "./ProgramMeta";
export function Sidebar() {
return (
<aside style={{
display: "flex",
"flex-direction": "column",
gap: "2rem", // Space between Controls and the List
position: "sticky",
top: "2rem",
"max-height": "calc(100vh - 4rem)",
"overflow-y": "auto" // Allow the list to scroll if it gets too long
}}>
<Controls />
<ProgramMeta />
</aside>
);
}

99
src/ui/scrowlStore.ts
View file

@ -1,21 +1,114 @@
import { createStore } from "solid-js/store";
import { Digith } from "./Digith";
import { Program } from "src/lang/program";
import { FunctionName } from "src/lang/expr";
export type DigithId = number;
export type Scrowl = {
digiths: Digith[];
digiths: Digith[],
nextId: DigithId,
focusTarget: DigithId | null, // 99.99999% of time this is null, but it flickers briefly - and on that flicker focus can happen.
}
export namespace Scrowl {
export type Error =
| Program.Error
export type Result<T> =
| { tag: "ok", value: T }
| { tag: "error", error: Error }
export namespace Result {
export function ok<T>(value: T): Result<T> { return { tag: "ok", value } }
export function error<T>(error: Error): Result<T> { return { tag: "error", error } }
}
}
export const [scrowl, setScrowl] = createStore<Scrowl>({
digiths: [{ tag: 'repl' }]
digiths: [{ tag: 'repl', id: 0 }],
nextId: 1,
focusTarget: null,
});
export function spawnFunctionDraft() {
function prependDigith(newDigith: Digith) {
setScrowl("digiths", (prev) => [newDigith, ...prev]);
}
export function updateDigith(targetId: DigithId, newDigith: Digith) {
setScrowl("digiths", (items) =>
items.map((item) => item.id === targetId ? newDigith : item)
);
}
export function closeDigith(targetId: DigithId) {
setScrowl("digiths", (prev) => prev.filter((d) => d.id !== targetId));
}
export function closeAllDigiths() {
setScrowl("digiths", []);
}
export function requestFocus(id: DigithId) {
setScrowl("focusTarget", id);
}
export function clearFocus() {
setScrowl("focusTarget", null);
}
function generateId(): DigithId {
const id = scrowl.nextId;
setScrowl("nextId", (prev) => prev + 1);
return id;
}
export function spawnNewFunctionDraftDigith() {
const id = generateId();
const newDraft: Digith = {
id,
tag: 'new-fn-draft',
raw_name: '',
raw_parameters: '',
raw_body: '',
};
requestFocus(id);
setScrowl("digiths", (prev) => [newDraft, ...prev]);
};
export function spawnFunctionDigith(program: Program, name: FunctionName, targetId?: DigithId): Scrowl.Result<Digith.Function> {
const lookupRes = Program.getFunction(program, name);
if (lookupRes.tag === "error") {
return Scrowl.Result.error(lookupRes.error);
}
const fnDef = lookupRes.value;
// TODO: Maybe consider representing some read-only Digith for primitive (it would just display the name, it wouldn't have code).
if (fnDef.tag === "primitive") {
return Scrowl.Result.error({ tag: "CannotEditPrimitiveFunction", name });
}
const userDef = fnDef.def;
const id = targetId ?? generateId();
const newDigith: Digith.Function = {
id: id,
tag: "fn",
name: userDef.name,
raw_parameters: userDef.raw_parameters,
raw_body: userDef.raw_body,
};
if (targetId === undefined) {
prependDigith(newDigith);
} else {
// Swap with old function draft.
updateDigith(targetId, newDigith);
}
return Scrowl.Result.ok(newDigith);
}