Merge pull request #364 from chinchang/subdomain

render file preview iframe in subdomain

gulpfile.js

@@ -12,6 +12,7 @@ const child_process = require('child_process');
 const merge = require('merge-stream');
 const zip = require('gulp-zip');
 var packageJson = JSON.parse(fs.readFileSync('./package.json'));
+const connect = require('gulp-connect');
 
 function minifyJs(fileName) {
 	const content = fs.readFileSync(fileName, 'utf8');
@@ -199,6 +200,14 @@ gulp.task('cleanup', function() {
 	return child_process.execSync('rm -rf build');
 });
 
+gulp.task('start-preview-server', function() {
+	connect.server({
+		root: 'preview',
+		port: 7888,
+		https: false
+	});
+});
+
 gulp.task('release', function(callback) {
 	runSequence(
 		'runWebpack',

package.json

@@ -3,10 +3,10 @@
 	"version": "3.6.2",
 	"description": "A blazing fast & offline web playground",
 	"scripts": {
-		"start": "if-env NODE_ENV=production && npm run -s serve || npm run -s dev",
+		"start": "npm run -s dev && gulp start-preview-server",
 		"build": "preact build --template src/index.html --no-prerender --service-worker false",
 		"serve": "preact build && preact serve",
-		"dev": "preact watch --template src/index.html --https --no-prerender",
+		"dev": "preact watch --template src/index.html --no-prerender",
 		"lint": "eslint src",
 		"test": "jest",
 		"precommit": "lint-staged",
@@ -65,6 +65,7 @@
 		"copy-webpack-plugin": "^4.5.1",
 		"esprima": "^4.0.0",
 		"firebase": "^5.5.8",
+		"gulp-connect": "^5.7.0",
 		"jszip": "^3.1.5",
 		"preact": "^8.2.6",
 		"preact-compat": "^3.17.0",

preview/index.html

@@ -0,0 +1 @@
+Loading...

preview/service-worker.js

@@ -0,0 +1,60 @@
+const CACHE_NAME = 'webmaker-vfiles';
+self.addEventListener('fetch', function(event) {
+	// console.log('fetch event', event.request.url, event.request);
+	event.respondWith(
+		caches.open(CACHE_NAME).then(function(cache) {
+			return cache
+				.match(event.request)
+				.then(response => {
+					// console.log('responding with ', response);
+					if (response !== undefined) {
+						return response;
+					}
+					return fetch(event.request);
+				})
+				.catch(function(e) {
+					// Fall back to just fetch()ing the request if some unexpected error
+					// prevented the cached response from being valid.
+					console.warn(
+						'Couldn\'t serve response for "%s" from cache: %O',
+						event.request.url,
+						e
+					);
+					return fetch(event.request);
+				});
+		})
+	);
+	// }
+});
+
+function getContentType(url) {
+	if (url.match(/\.html$/)) {
+		return 'text/html; charset=UTF-8';
+	} else if (url.match(/\.css$/)) {
+		return 'text/css; charset=UTF-8';
+	} else if (url.match(/\.js$/)) {
+		return 'application/javascript; charset=UTF-8';
+	} else if (url.match(/\.json$/)) {
+		return 'application/json; charset=UTF-8';
+	}
+	return 'text/html; charset=UTF-8';
+}
+
+self.addEventListener('message', function(e) {
+	// console.log('message aya sw main', e.data);
+	caches.open(CACHE_NAME).then(function(cache) {
+		for (const url in e.data) {
+			if (Object.prototype.hasOwnProperty.call(e.data, url)) {
+				// console.log('Received data', url, e.data[url])
+				cache.put(
+					url,
+					new Response(e.data[url], {
+						headers: {
+							'Content-Type': getContentType(url)
+						}
+					})
+				);
+			}
+		}
+	});
+});

preview/talk.html

@@ -0,0 +1,52 @@
+Hello
+
+<script>
+	if (
+		'serviceWorker' in navigator
+	) {
+		// Delay registration until after the page has loaded, to ensure that our
+		// precaching requests don't degrade the first visit experience.
+		// See https://developers.google.com/web/fundamentals/instant-and-offline/service-worker/registration
+		window.addEventListener('load', function () {
+			navigator.serviceWorker
+				.register('service-worker.js')
+				.then(function (reg) {
+					// updatefound is fired if service-worker.js changes.
+					reg.onupdatefound = function () {
+						// The updatefound event implies that reg.installing is set; see
+						// https://w3c.github.io/ServiceWorker/#service-worker-registration-updatefound-event
+						var installingWorker = reg.installing;
+
+						installingWorker.onstatechange = function () {
+							/* eslint-disable default-case */
+							switch (installingWorker.state) {
+								case 'installed':
+									console.log('New or updated content is available.');
+									break;
+
+								case 'redundant':
+									console.error(
+										'The installing service worker became redundant.'
+									);
+									break;
+							}
+						};
+					};
+				})
+				.catch(function (e) {
+					console.error('Error during service worker registration:', e);
+				});
+		});
+	}
+
+</script>
+
+
+<script>
+	console.log('controller', navigator.serviceWorker.controller)
+	window.addEventListener('message', (e) => {
+		console.log(88, e.data);
+		navigator.serviceWorker.controller.postMessage(e.data);
+	});
+
+</script>

src/components/CodeEditor.jsx

@@ -244,8 +244,6 @@ export default class CodeEditor extends Component {
 	}
 
 	async initEditor() {
-		console.log('init editor');
-
 		this.editorReadyDeferred = deferred();
 		await this.loadDeps();
 

src/components/ContentWrap.jsx

@@ -69,6 +69,13 @@ export default class ContentWrap extends Component {
 	}
 	componentDidMount() {
 		this.props.onRef(this);
+
+		// Listen for logs from preview frame
+		window.addEventListener('message', e => {
+			if (e.data && e.data.logs) {
+				this.onMessageFromConsole(...e.data.logs);
+			}
+		});
 	}
 
 	onHtmlCodeChange(editor, change) {
@@ -160,7 +167,7 @@ export default class ContentWrap extends Component {
 						: `${location.origin}`;
 					var src = `filesystem:${origin}/temporary/preview.html`;
 					if (this.detachedWindow) {
-						this.detachedWindow.postMessage(src, '*');
+						this.detachedWindow.postMessage({ url: src }, '*');
 					} else {
 						this.frame.src = src;
 					}

src/components/ContentWrapFiles.jsx

@@ -22,6 +22,9 @@ import { commandPaletteService } from '../commandPaletteService';
 import { PreviewDimension } from './PreviewDimension';
 
 const minCodeWrapSize = 33;
+const PREVIEW_FRAME_HOST = window.DEBUG
+	? 'http://localhost:7888'
+	: `https://preview.${location.host}`;
 
 /* global htmlCodeEl
  */
@@ -114,6 +117,13 @@ export default class ContentWrapFiles extends Component {
 	}
 	componentDidMount() {
 		this.props.onRef(this);
+
+		// Listen for logs from preview frame
+		window.addEventListener('message', e => {
+			if (e.data && e.data.logs) {
+				this.onMessageFromConsole(...e.data.logs);
+			}
+		});
 		this.commandPaletteSubscriptions = [];
 		this.commandPaletteSubscriptions.push(
 			commandPaletteService.subscribe(SWITCH_FILE_EVENT, file => {
@@ -226,7 +236,7 @@ export default class ContentWrapFiles extends Component {
 		);
 		// Namespace all file paths to '/user' because thats what the service worker
 		// recognizes.
-		const files = linearizeFiles(assignFilePaths(duplicateFiles, '/user'));
+		const files = linearizeFiles(assignFilePaths(duplicateFiles, ''));
 
 		files.forEach(file => {
 			obj[file.path] = file.content || '';
@@ -245,13 +255,19 @@ export default class ContentWrapFiles extends Component {
 			}
 		});
 
-		navigator.serviceWorker.controller.postMessage(obj);
+		// navigator.serviceWorker.controller.postMessage(obj);
+		window.talkFrame.contentWindow.postMessage(obj, '*');
 
 		if (this.detachedWindow) {
 			log('✉️ Sending message to detached window');
-			this.detachedWindow.postMessage({ contents: '/user/index.html' }, '*');
+			this.detachedWindow.postMessage(
+				{ url: `${PREVIEW_FRAME_HOST}/index.html` },
+				'*'
+			);
 		} else {
-			this.frame.src = '/user/index.html';
+			setTimeout(() => {
+				this.frame.src = `${PREVIEW_FRAME_HOST}/index.html`;
+			}, 10);
 		}
 	}
 	cleanupErrors() {
@@ -516,6 +532,38 @@ export default class ContentWrapFiles extends Component {
 		this.editor.focus();
 	}
 
+	detachPreview() {
+		if (this.detachedWindow) {
+			this.detachedWindow.focus();
+			return;
+		}
+		const iframeBounds = this.frame.getBoundingClientRect();
+		const iframeWidth = iframeBounds.width;
+		const iframeHeight = iframeBounds.height;
+		document.body.classList.add('is-detached-mode');
+
+		this.detachedWindow = window.open(
+			'./preview.html',
+			'Web Maker',
+			`width=${iframeWidth},height=${iframeHeight},resizable,scrollbars=yes,status=1`
+		);
+		// Trigger initial render in detached window
+		setTimeout(() => {
+			this.setPreviewContent(true);
+		}, 1500);
+
+		var intervalID = window.setInterval(checkWindow => {
+			if (this.detachedWindow && this.detachedWindow.closed) {
+				clearInterval(intervalID);
+				document.body.classList.remove('is-detached-mode');
+				this.detachedWindow = null;
+				// Update main frame preview to get latest changes (which were not
+				// getting reflected while detached window was open)
+				this.setPreviewContent(true);
+			}
+		}, 500);
+	}
+
 	onMessageFromConsole() {
 		const logs = [...arguments].map(arg => {
 			if (
@@ -570,7 +618,7 @@ export default class ContentWrapFiles extends Component {
 			this.onMessageFromConsole('> ' + e.target.value);
 
 			/* eslint-disable no-underscore-dangle */
-			this.frame.contentWindow._wmEvaluate(e.target.value);
+			this.frame.contentWindow.postMessage({ exprToEval: e.target.value }, '*');
 
 			/* eslint-enable no-underscore-dangle */
 
@@ -650,11 +698,12 @@ export default class ContentWrapFiles extends Component {
 				<div class="demo-side" id="js-demo-side" style="">
 					<iframe
 						ref={el => (this.frame = el)}
-						src="/user/index.html"
+						src={`${PREVIEW_FRAME_HOST}/index.html`}
 						frameborder="0"
 						id="demo-frame"
 						allowfullscreen
 					/>
+					<iframe src={`${PREVIEW_FRAME_HOST}/talk.html`} id="talkFrame" />
 					<PreviewDimension ref={comp => (this.previewDimension = comp)} />
 					<Console
 						logs={this.state.logs}
@@ -669,3 +718,4 @@ export default class ContentWrapFiles extends Component {
 		);
 	}
 }
+2;

src/detached-window.js

@@ -1,5 +1,5 @@
 window.addEventListener('message', e => {
-	// Web app
+	// Recieving from app window
 	if (e.data && e.data.contents && e.data.contents.match(/<html/)) {
 		const frame = document.querySelector('iframe');
 		frame.src = frame.src;
@@ -8,8 +8,13 @@ window.addEventListener('message', e => {
 			frame.contentDocument.write(e.data.contents);
 			frame.contentDocument.close();
 		}, 10);
-	} else if (e.data && e.data.match(/preview\.html/)) {
+	}
-		// Chrome extension
+	if (e.data && e.data.url && e.data.match(/preview\.html/)) {
-		document.querySelector('iframe').src = e.data;
+		document.querySelector('iframe').src = e.data.url;
+	}
+
+	// Recieving from preview iframe
+	if (e.data && e.data.logs) {
+		window.opener.postMessage(e.data, '*');
 	}
 });

src/lib/screenlog.js

@@ -1,6 +1,28 @@
-var mainWindow = window.parent.onMessageFromConsole
+let mainWindow = window.parent;
-	? window.parent
+
-	: window.parent.opener;
+function sanitizeDomNode(node) {
+	const fakeNode = {
+		nodeName: node.nodeName,
+		nodeType: node.nodeType,
+		tagName: node.tagName,
+		childNodes: [...node.childNodes].map(child => sanitizeDomNode(child)),
+		textContent: node.textContent
+	}
+	if(node.attributes) {
+		fakeNode.attributes = [...node.attributes].map(attribute => ({name:attribute.name, value:attribute.value}))
+	}
+	return fakeNode;
+}
+function sendLog(...args) {
+	const sanitizedArgs = [...args].map(arg => {
+		if(arg && arg instanceof HTMLElement) {
+			return sanitizeDomNode(arg)
+		}
+		return arg;
+	})
+	mainWindow.postMessage({ logs: sanitizedArgs },"*");
+}
+	
 (function() {
 	var logEl,
 		isInitialized = false,
@@ -191,16 +213,21 @@ var mainWindow = window.parent.onMessageFromConsole
 })();
 screenLog.init({
 	noUi: true,
-	proxyCallback: function() {
+	proxyCallback: function(...args) {
-		mainWindow.onMessageFromConsole.apply(null, arguments);
+		sendLog(...args);
 	}
 });
 window._wmEvaluate = function _wmEvaluate(expr) {
 	try {
 		var result = eval(expr);
 	} catch (e) {
-		mainWindow.onMessageFromConsole.call(null, e);
+		sendLog(e.stack || e.message);
 		return;
 	}
-	mainWindow.onMessageFromConsole.call(null, result);
+	sendLog(result)
 };
+window.addEventListener('message', e => {
+	if(e.data && e.data.exprToEval) {
+		_wmEvaluate(e.data.exprToEval);
+	}
+})