a tool for shared writing and social publishing
persist last used codeblock language
Jared Pereira
(Nov 30, 2025, 11:03 PM EST)
f7140208
0c4f6b77
+25
-4
+10
-1
components/Blocks/BlockCommands.tsx
+10
-1
components/Blocks/BlockCommands.tsx
···
32
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import { BlockMathSmall } from "components/Icons/BlockMathSmall";
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import { BlockCodeSmall } from "components/Icons/BlockCodeSmall";
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import { QuoteSmall } from "components/Icons/QuoteSmall";
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+
import { LAST_USED_CODE_LANGUAGE_KEY } from "src/utils/codeLanguageStorage";
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type Props = {
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parent: string;
···
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type: "block",
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hiddenInPublication: false,
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onSelect: async (rep, props) => {
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-
createBlockWithType(rep, props, "code");
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let entity = await createBlockWithType(rep, props, "code");
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let lastLang = localStorage.getItem(LAST_USED_CODE_LANGUAGE_KEY);
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if (lastLang) {
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await rep.mutate.assertFact({
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entity,
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attribute: "block/code-language",
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data: { type: "string", value: lastLang },
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});
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}
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},
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},
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+2
components/Blocks/CodeBlock.tsx
+2
components/Blocks/CodeBlock.tsx
···
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13
import { useEntitySetContext } from "components/EntitySetProvider";
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import { flushSync } from "react-dom";
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import { elementId } from "src/utils/elementId";
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import { LAST_USED_CODE_LANGUAGE_KEY } from "src/utils/codeLanguageStorage";
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export function CodeBlock(props: BlockProps) {
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let { rep, rootEntity } = useReplicache();
···
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}}
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value={lang}
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onChange={async (e) => {
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localStorage.setItem(LAST_USED_CODE_LANGUAGE_KEY, e.target.value);
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await rep?.mutate.assertFact({
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attribute: "block/code-language",
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entity: props.entityID,
+12
-3
components/Blocks/TextBlock/inputRules.ts
+12
-3
components/Blocks/TextBlock/inputRules.ts
···
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11
import { schema } from "./schema";
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import { useUIState } from "src/useUIState";
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import { flushSync } from "react-dom";
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import { LAST_USED_CODE_LANGUAGE_KEY } from "src/utils/codeLanguageStorage";
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export const inputrules = (
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propsRef: MutableRefObject<BlockProps & { entity_set: { set: string } }>,
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repRef: MutableRefObject<Replicache<ReplicacheMutators> | null>,
···
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// Code Block
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new InputRule(/^```\s$/, (state, match) => {
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flushSync(() =>
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flushSync(() => {
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repRef.current?.mutate.assertFact({
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entity: propsRef.current.entityID,
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attribute: "block/type",
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data: { type: "block-type-union", value: "code" },
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}),
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);
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});
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let lastLang = localStorage.getItem(LAST_USED_CODE_LANGUAGE_KEY);
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if (lastLang) {
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repRef.current?.mutate.assertFact({
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entity: propsRef.current.entityID,
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attribute: "block/code-language",
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data: { type: "string", value: lastLang },
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});
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}
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});
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setTimeout(() => {
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focusBlock({ ...propsRef.current, type: "code" }, { type: "start" });
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}, 20);
+1
src/utils/codeLanguageStorage.ts
+1
src/utils/codeLanguageStorage.ts
···
1
+
export const LAST_USED_CODE_LANGUAGE_KEY = "lastUsedCodeLanguage";