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Make notebook renderer activate potentially async (#124647)
* Make notebook renderer activate potentially async - Allow activate to be `async` - Make `getRenderer` always return a promise instead of the api result directly * Add comment on why we use async
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@ -6,10 +6,13 @@ import type * as markdownIt from 'markdown-it';
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const emoji = require('markdown-it-emoji');
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export function activate(ctx: {
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export async function activate(ctx: {
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getRenderer: (id: string) => any
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}) {
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const markdownItRenderer = ctx.getRenderer('markdownItRenderer');
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const markdownItRenderer = await ctx.getRenderer('markdownItRenderer');
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if (!markdownItRenderer) {
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throw new Error('Could not load markdownItRenderer');
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}
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markdownItRenderer.extendMarkdownIt((md: markdownIt.MarkdownIt) => {
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return md.use(emoji);
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@ -6,10 +6,13 @@ import type * as markdownIt from 'markdown-it';
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const styleHref = import.meta.url.replace(/katex.js$/, 'katex.min.css');
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export function activate(ctx: {
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getRenderer: (id: string) => any
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export async function activate(ctx: {
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getRenderer: (id: string) => Promise<any | undefined>
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}) {
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const markdownItRenderer = ctx.getRenderer('markdownItRenderer');
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const markdownItRenderer = await ctx.getRenderer('markdownItRenderer');
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if (!markdownItRenderer) {
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throw new Error('Could not load markdownItRenderer');
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}
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const link = document.createElement('link');
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link.rel = 'stylesheet';
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@ -130,13 +130,13 @@ async function webviewPreloads(style: PreloadStyles, options: PreloadOptions, re
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interface RendererContext {
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getState<T>(): T | undefined;
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setState<T>(newState: T): void;
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getRenderer(id: string): any | undefined;
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getRenderer(id: string): Promise<any | undefined>;
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postMessage?(message: unknown): void;
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onDidReceiveMessage?: Event<unknown>;
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}
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interface ScriptModule {
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activate: (ctx?: RendererContext) => any;
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activate(ctx?: RendererContext): Promise<RendererApi | undefined | any> | RendererApi | undefined | any;
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}
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const invokeSourceWithGlobals = (functionSrc: string, globals: { [name: string]: unknown }) => {
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@ -844,7 +844,7 @@ async function webviewPreloads(style: PreloadStyles, options: PreloadOptions, re
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) { }
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private _onMessageEvent = createEmitter();
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private _loadPromise: Promise<RendererApi> | undefined;
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private _loadPromise?: Promise<RendererApi | undefined>;
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private _api: RendererApi | undefined;
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public get api() { return this._api; }
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@ -869,7 +869,9 @@ async function webviewPreloads(style: PreloadStyles, options: PreloadOptions, re
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const state = vscode.getState();
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return typeof state === 'object' && state ? state[id] as T : undefined;
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},
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getRenderer: (id: string) => renderers.getRenderer(id)?.api,
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// TODO: This is async so that we can return a promise to the API in the future.
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// Currently the API is always resolved before we call `createRendererContext`.
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getRenderer: async (id: string) => renderers.getRenderer(id)?.api,
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};
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if (messaging) {
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@ -881,13 +883,13 @@ async function webviewPreloads(style: PreloadStyles, options: PreloadOptions, re
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}
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/** Inner function cached in the _loadPromise(). */
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private async _load() {
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private async _load(): Promise<RendererApi | undefined> {
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const module = await runRenderScript(this.data.entrypoint, this.data.id);
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if (!module) {
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return;
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}
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const api = module.activate(this.createRendererContext());
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const api = await module.activate(this.createRendererContext());
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this._api = api;
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// Squash any errors extends errors. They won't prevent the renderer
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@ -902,7 +904,7 @@ async function webviewPreloads(style: PreloadStyles, options: PreloadOptions, re
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}
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const kernelPreloads = new class {
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private readonly preloads = new Map<string /* uri */, Promise<ScriptModule>>();
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private readonly preloads = new Map<string /* uri */, Promise<unknown>>();
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/**
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* Returns a promise that resolves when the given preload is activated.
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