47 lines
1.3 KiB
TypeScript
47 lines
1.3 KiB
TypeScript
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import { BaseRange, Editor } from 'slate';
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export enum AutocompletePrefix {
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RoomMention = '#',
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UserMention = '@',
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Emoticon = ':',
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}
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export const AUTOCOMPLETE_PREFIXES: readonly AutocompletePrefix[] = [
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AutocompletePrefix.RoomMention,
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AutocompletePrefix.UserMention,
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AutocompletePrefix.Emoticon,
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];
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export type AutocompleteQuery<TPrefix extends string> = {
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range: BaseRange;
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prefix: TPrefix;
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text: string;
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};
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export const getAutocompletePrefix = <TPrefix extends string>(
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editor: Editor,
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queryRange: BaseRange,
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validPrefixes: readonly TPrefix[]
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): TPrefix | undefined => {
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const world = Editor.string(editor, queryRange);
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const prefix = world[0] as TPrefix | undefined;
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if (!prefix) return undefined;
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return validPrefixes.includes(prefix) ? prefix : undefined;
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};
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export const getAutocompleteQueryText = (editor: Editor, queryRange: BaseRange): string =>
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Editor.string(editor, queryRange).slice(1);
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export const getAutocompleteQuery = <TPrefix extends string>(
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editor: Editor,
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queryRange: BaseRange,
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validPrefixes: readonly TPrefix[]
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): AutocompleteQuery<TPrefix> | undefined => {
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const prefix = getAutocompletePrefix(editor, queryRange, validPrefixes);
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if (!prefix) return undefined;
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return {
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range: queryRange,
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prefix,
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text: getAutocompleteQueryText(editor, queryRange),
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};
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};
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