update packages and add valign

scripts/reveal.js/plugin/highlight/index.ts

@@ -0,0 +1,56 @@
+import type { HLJSApi } from 'highlight.js';
+import type { RevealPlugin } from 'reveal.js';
+
+// @ts-expect-error The runtime implementation remains in JS during the migration.
+import HighlightImplementation from './plugin.js';
+
+export interface HighlightLine {
+	start?: number;
+	end?: number;
+}
+
+export interface HighlightLineNumbersOptions {
+	singleLine?: boolean;
+	startFrom?: number;
+}
+
+export interface HighlightJsApi extends HLJSApi {
+	initLineNumbersOnLoad(options?: HighlightLineNumbersOptions): void;
+	lineNumbersBlock(element: HTMLElement, options?: HighlightLineNumbersOptions): void;
+	lineNumbersValue(code: string, options?: HighlightLineNumbersOptions): string | undefined;
+}
+
+export interface HighlightScrollState {
+	currentBlock?: HTMLElement;
+	animationFrameID?: number;
+}
+
+export interface HighlightLineBounds {
+	top: number;
+	bottom: number;
+}
+
+export type HighlightLineStep = HighlightLine[];
+
+export interface HighlightPlugin extends RevealPlugin {
+	id: 'highlight';
+	HIGHLIGHT_STEP_DELIMITER: '|';
+	HIGHLIGHT_LINE_DELIMITER: ',';
+	HIGHLIGHT_LINE_RANGE_DELIMITER: '-';
+	hljs: HighlightJsApi;
+	highlightBlock(block: HTMLElement): void;
+	scrollHighlightedLineIntoView(
+		block: HTMLElement,
+		scrollState: HighlightScrollState,
+		skipAnimation?: boolean
+	): void;
+	easeInOutQuart(t: number): number;
+	getHighlightedLineBounds(block: HTMLElement): HighlightLineBounds;
+	highlightLines(block: HTMLElement, linesToHighlight?: string): void;
+	deserializeHighlightSteps(highlightSteps: string): HighlightLineStep[];
+	serializeHighlightSteps(highlightSteps: HighlightLineStep[]): string;
+}
+
+const Highlight = HighlightImplementation as () => HighlightPlugin;
+
+export default Highlight;