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chore(playground): migrate runner iframe to web component
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,121 @@ | ||
| import { html, LitElement } from "lit"; | ||
| import { compressAndBase64Encode } from "./utils.ts"; | ||
| import { PLAYGROUND_BASE_HOST } from "../env.ts"; | ||
| import { createComponent } from "@lit/react"; | ||
| import { Task } from "@lit/task"; | ||
| import React from "react"; | ||
|
|
||
| import styles from "./runner.scss?css" with { type: "css" }; | ||
|
|
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| /** @import { EditorContent } from "./utils.ts" */ | ||
| /** @import { VConsole } from "./console.tsx" */ | ||
| /** @import { EventName } from "@lit/react" */ | ||
|
|
||
| export class PlayRunner extends LitElement { | ||
| static properties = { | ||
| code: { type: Object }, | ||
| srcPrefix: { type: String, attribute: "src-prefix" }, | ||
| _src: { state: true }, | ||
| }; | ||
|
|
||
| static styles = styles; | ||
|
|
||
| constructor() { | ||
| super(); | ||
| /** @type {EditorContent | undefined} */ | ||
| this.code = undefined; | ||
| /** @type {string | undefined} */ | ||
| this.srcPrefix = undefined; | ||
| this._src = "about:blank"; | ||
|
|
||
| this._subdomain = crypto.randomUUID(); | ||
| this._flipFlop = 0; | ||
| } | ||
|
|
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| /** @param {MessageEvent} e */ | ||
| _onMessage({ data: { typ, prop, message } }) { | ||
| if (typ === "console") { | ||
| if ( | ||
| (prop === "log" || prop === "error" || prop === "warn") && | ||
| typeof message === "string" | ||
| ) { | ||
| /** @type {VConsole} */ | ||
| const detail = { prop, message }; | ||
| this.dispatchEvent( | ||
| new CustomEvent("console", { bubbles: true, composed: true, detail }) | ||
| ); | ||
| } else { | ||
| const warning = "[Playground] Unsupported console message"; | ||
| /** @type {VConsole} */ | ||
| const detail = { | ||
| prop: "warn", | ||
| message: `${warning} (see browser console)`, | ||
| }; | ||
| this.dispatchEvent( | ||
| new CustomEvent("console", { bubbles: true, composed: true, detail }) | ||
| ); | ||
| console.warn(warning, { prop, message }); | ||
| } | ||
| } | ||
| } | ||
|
|
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| _updateSrc = new Task(this, { | ||
| args: () => /** @type {const} */ ([this.code, this.srcPrefix]), | ||
| task: async ([code, srcPrefix], { signal }) => { | ||
| if (code) { | ||
| const { state } = await compressAndBase64Encode(JSON.stringify(code)); | ||
| signal.throwIfAborted(); | ||
| // We're using a random subdomain for origin isolation. | ||
| const url = new URL( | ||
| window.location.hostname.endsWith("localhost") | ||
| ? window.location.origin | ||
| : `${window.location.protocol}//${ | ||
| PLAYGROUND_BASE_HOST.startsWith("localhost") | ||
| ? "" | ||
| : `${this._subdomain}.` | ||
| }${PLAYGROUND_BASE_HOST}` | ||
| ); | ||
| url.searchParams.set("state", state); | ||
| // ensure iframe reloads even if code doesn't change | ||
| url.searchParams.set("f", this._flipFlop.toString()); | ||
| url.pathname = `${srcPrefix || code.src || ""}/runner.html`; | ||
| this._src = url.href; | ||
| this._flipFlop = (this._flipFlop + 1) % 2; | ||
| } else { | ||
| this._src = "about:blank"; | ||
| } | ||
| }, | ||
| }); | ||
|
|
||
| connectedCallback() { | ||
| super.connectedCallback(); | ||
| this._onMessage = this._onMessage.bind(this); | ||
| window.addEventListener("message", this._onMessage); | ||
| } | ||
|
|
||
| render() { | ||
| return html` | ||
| <iframe | ||
| title="runner" | ||
| src=${this._src} | ||
| sandbox="allow-scripts allow-same-origin allow-forms" | ||
| ></iframe> | ||
| `; | ||
| } | ||
|
|
||
| disconnectedCallback() { | ||
| super.disconnectedCallback(); | ||
| window.removeEventListener("message", this._onMessage); | ||
| } | ||
| } | ||
|
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| customElements.define("play-runner", PlayRunner); | ||
|
|
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| export const ReactPlayRunner = createComponent({ | ||
| tagName: "play-runner", | ||
| elementClass: PlayRunner, | ||
| react: React, | ||
| events: { | ||
| onConsole: /** @type {EventName<CustomEvent<VConsole>>} */ ("console"), | ||
| }, | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,5 @@ | ||
| iframe { | ||
| border: none; | ||
| height: 100%; | ||
| width: 100%; | ||
| } |
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