feat: css loading

packages/webpack5/__tests__/configuration/__snapshots__/react.spec.ts.snap

@@ -24,6 +24,7 @@ exports[`react configuration > android > adds ReactRefreshWebpackPlugin when HMR
       'react-dom': 'react-nativescript'
     },
     extensions: [
+      '.android.tsx',
       '.tsx',
       '.android.ts',
       '.ts',
@@ -39,7 +40,7 @@ exports[`react configuration > android > adds ReactRefreshWebpackPlugin when HMR
   },
   resolveLoader: {
     modules: [
-      '@nativescript/webpack/dist/loaders',
+      'node_modules/@nativescript/webpack/dist/loaders',
       'node_modules'
     ]
   },
@@ -92,9 +93,9 @@ exports[`react configuration > android > adds ReactRefreshWebpackPlugin when HMR
       {
         test: /\\\\.css$/,
         use: [
-          /* config.module.rule('css').use('css2json-loader') */
+          /* config.module.rule('css').use('apply-css-loader') */
           {
-            loader: 'css2json-loader'
+            loader: 'apply-css-loader'
           },
           /* config.module.rule('css').use('css-loader') */
           {
@@ -199,6 +200,7 @@ exports[`react configuration > android > base config 1`] = `
       'react-dom': 'react-nativescript'
     },
     extensions: [
+      '.android.tsx',
       '.tsx',
       '.android.ts',
       '.ts',
@@ -214,7 +216,7 @@ exports[`react configuration > android > base config 1`] = `
   },
   resolveLoader: {
     modules: [
-      '@nativescript/webpack/dist/loaders',
+      'node_modules/@nativescript/webpack/dist/loaders',
       'node_modules'
     ]
   },
@@ -267,9 +269,9 @@ exports[`react configuration > android > base config 1`] = `
       {
         test: /\\\\.css$/,
         use: [
-          /* config.module.rule('css').use('css2json-loader') */
+          /* config.module.rule('css').use('apply-css-loader') */
           {
-            loader: 'css2json-loader'
+            loader: 'apply-css-loader'
           },
           /* config.module.rule('css').use('css-loader') */
           {
@@ -367,6 +369,7 @@ exports[`react configuration > ios > adds ReactRefreshWebpackPlugin when HMR ena
       'react-dom': 'react-nativescript'
     },
     extensions: [
+      '.ios.tsx',
       '.tsx',
       '.ios.ts',
       '.ts',
@@ -382,7 +385,7 @@ exports[`react configuration > ios > adds ReactRefreshWebpackPlugin when HMR ena
   },
   resolveLoader: {
     modules: [
-      '@nativescript/webpack/dist/loaders',
+      'node_modules/@nativescript/webpack/dist/loaders',
       'node_modules'
     ]
   },
@@ -435,9 +438,9 @@ exports[`react configuration > ios > adds ReactRefreshWebpackPlugin when HMR ena
       {
         test: /\\\\.css$/,
         use: [
-          /* config.module.rule('css').use('css2json-loader') */
+          /* config.module.rule('css').use('apply-css-loader') */
           {
-            loader: 'css2json-loader'
+            loader: 'apply-css-loader'
           },
           /* config.module.rule('css').use('css-loader') */
           {
@@ -545,6 +548,7 @@ exports[`react configuration > ios > base config 1`] = `
       'react-dom': 'react-nativescript'
     },
     extensions: [
+      '.ios.tsx',
       '.tsx',
       '.ios.ts',
       '.ts',
@@ -560,7 +564,7 @@ exports[`react configuration > ios > base config 1`] = `
   },
   resolveLoader: {
     modules: [
-      '@nativescript/webpack/dist/loaders',
+      'node_modules/@nativescript/webpack/dist/loaders',
       'node_modules'
     ]
   },
@@ -613,9 +617,9 @@ exports[`react configuration > ios > base config 1`] = `
       {
         test: /\\\\.css$/,
         use: [
-          /* config.module.rule('css').use('css2json-loader') */
+          /* config.module.rule('css').use('apply-css-loader') */
           {
-            loader: 'css2json-loader'
+            loader: 'apply-css-loader'
           },
           /* config.module.rule('css').use('css-loader') */
           {

packages/webpack5/__tests__/configuration/__snapshots__/vue.spec.ts.snap

@@ -40,7 +40,7 @@ exports[`vue configuration for android 1`] = `
   },
   resolveLoader: {
     modules: [
-      '@nativescript/webpack/dist/loaders',
+      'node_modules/@nativescript/webpack/dist/loaders',
       'node_modules'
     ]
   },
@@ -84,9 +84,9 @@ exports[`vue configuration for android 1`] = `
       {
         test: /\\\\.css$/,
         use: [
-          /* config.module.rule('css').use('css2json-loader') */
+          /* config.module.rule('css').use('apply-css-loader') */
           {
-            loader: 'css2json-loader'
+            loader: 'apply-css-loader'
           },
           /* config.module.rule('css').use('css-loader') */
           {
@@ -212,7 +212,7 @@ exports[`vue configuration for ios 1`] = `
   },
   resolveLoader: {
     modules: [
-      '@nativescript/webpack/dist/loaders',
+      'node_modules/@nativescript/webpack/dist/loaders',
       'node_modules'
     ]
   },
@@ -256,9 +256,9 @@ exports[`vue configuration for ios 1`] = `
       {
         test: /\\\\.css$/,
         use: [
-          /* config.module.rule('css').use('css2json-loader') */
+          /* config.module.rule('css').use('apply-css-loader') */
           {
-            loader: 'css2json-loader'
+            loader: 'apply-css-loader'
           },
           /* config.module.rule('css').use('css-loader') */
           {

packages/webpack5/package.json

@@ -17,20 +17,30 @@
 		"babel-loader": "^8.2.1",
 		"clean-webpack-plugin": "^3.0.0",
 		"cli-highlight": "^2.1.4",
+		"css": "^3.0.0",
+		"css-loader": "^5.0.1",
+		"loader-utils": "^2.0.0",
+		"scss": "^0.2.4",
+		"scss-loader": "^0.0.1",
+		"source-map": "^0.7.3",
 		"terser-webpack-plugin": "^5.0.3",
+		"ts-dedent": "^2.0.0",
+		"ts-loader": "^8.0.11",
 		"vue-loader": "^15.9.5",
-		"webpack": "^5.4.0",
+		"webpack": "^5.6.0",
 		"webpack-chain": "^6.5.1",
 		"webpack-cli": "^4.2.0",
 		"webpack-merge": "^5.4.0",
 		"worker-plugin": "^5.0.0"
 	},
 	"devDependencies": {
+		"@types/css": "^0.0.31",
 		"@types/jest": "^26.0.15",
+		"@types/loader-utils": "^2.0.1",
 		"@types/terser-webpack-plugin": "^5.0.2",
 		"jest": "^26.6.3",
 		"ts-jest": "^26.4.4",
-		"typescript": "^4.0.5"
+		"typescript": "^4.1.2"
 	},
 	"peerDependencies": {
 		"nativescript-vue-template-compiler": "^2.8.1"

packages/webpack5/src/configuration/base.ts

@@ -8,6 +8,8 @@ import {
 	getPlatform,
 } from '../helpers/project';
 
+import TransformNativeClass from '../transformers/NativeClass';
+
 import { CleanWebpackPlugin } from 'clean-webpack-plugin';
 import { DefinePlugin } from 'webpack';
 import { WatchStateLoggerPlugin } from '../plugins/WatchStateLoggerPlugin';
@@ -55,10 +57,10 @@ export default function (config: Config, env: IWebpackEnv): Config {
 	]);
 
 	// look for loaders in
-	//  - @nativescript/webpack/loaders
+	//  - node_modules/@nativescript/webpack/dist/loaders
 	//  - node_modules
 	config.resolveLoader.modules
-		.add('@nativescript/webpack/dist/loaders')
+		.add('node_modules/@nativescript/webpack/dist/loaders')
 		.add('node_modules');
 
 	// inspector_modules
@@ -105,9 +107,7 @@ export default function (config: Config, env: IWebpackEnv): Config {
 			},
 			getCustomTransformers() {
 				return {
-					before: [
+					before: [TransformNativeClass],
-						// todo: transform NativeClass
-					],
 				};
 			},
 		});
@@ -124,8 +124,8 @@ export default function (config: Config, env: IWebpackEnv): Config {
 	config.module
 		.rule('css')
 		.test(/\.css$/)
-		.use('css2json-loader')
+		.use('apply-css-loader')
-		.loader('css2json-loader')
+		.loader('apply-css-loader')
 		.end()
 		.use('css-loader')
 		.loader('css-loader');

packages/webpack5/src/configuration/react.ts

@@ -2,15 +2,17 @@ import base from './base';
 import { env as _env, IWebpackEnv } from '@nativescript/webpack';
 import Config from 'webpack-chain';
 import { merge } from 'webpack-merge';
+import { getPlatform } from '../helpers/project';
 
 export default function (config: Config, env: IWebpackEnv = _env): Config {
 	base(config, env);
 
+	const platform = getPlatform();
 	// todo: use env
 	let isAnySourceMapEnabled = true;
 	let production = false;
 
-	config.resolve.extensions.prepend('.tsx');
+	config.resolve.extensions.prepend('.tsx').prepend(`.${platform}.tsx`);
 	config.resolve.alias.set('react-dom', 'react-nativescript');
 
 	config.module
@@ -34,7 +36,9 @@ export default function (config: Config, env: IWebpackEnv = _env): Config {
 			 * Primarily for React Fast Refresh plugin, but technically the allowHmrInProduction option could be used instead.
 			 * Worth including anyway, as there are plenty of Node libraries that use this flag.
 			 */
-			'process.env.NODE_ENV': JSON.stringify(production ? 'production' : 'development'),
+			'process.env.NODE_ENV': JSON.stringify(
+				production ? 'production' : 'development'
+			),
 		});
 
 		return args;
@@ -42,21 +46,23 @@ export default function (config: Config, env: IWebpackEnv = _env): Config {
 
 	// todo: env flag to forceEnable?
 	config.when(env.hmr && !production, (config) => {
-		config.plugin('ReactRefreshWebpackPlugin').use(function ReactRefreshWebpackPlugin() {}, [
+		config
-			{
+			.plugin('ReactRefreshWebpackPlugin')
-				/**
+			.use(function ReactRefreshWebpackPlugin() {}, [
-				 * Maybe one day we'll implement an Error Overlay, but the work involved is too daunting for now.
+				{
-				 * @see https://github.com/pmmmwh/react-refresh-webpack-plugin/issues/79#issuecomment-644324557
+					/**
-				 */
+					 * Maybe one day we'll implement an Error Overlay, but the work involved is too daunting for now.
-				overlay: false,
+					 * @see https://github.com/pmmmwh/react-refresh-webpack-plugin/issues/79#issuecomment-644324557
-				/**
+					 */
-				 * If you (temporarily) want to enable HMR on a production build:
+					overlay: false,
-				 *   1) Set `forceEnable` to `true`
+					/**
-				 *   2) Remove the `!production` condition on `tsxRule` to ensure that babel-loader gets used.
+					 * If you (temporarily) want to enable HMR on a production build:
-				 */
+					 *   1) Set `forceEnable` to `true`
-				forceEnable: false,
+					 *   2) Remove the `!production` condition on `tsxRule` to ensure that babel-loader gets used.
-			},
+					 */
-		]);
+					forceEnable: false,
+				},
+			]);
 	});
 
 	return config;

packages/webpack5/src/loaders/apply-css-loader/index.ts

@@ -0,0 +1,44 @@
+import { dedent } from 'ts-dedent';
+
+const cssLoaderWarning = dedent`
+	The apply-css-loader requires the file to be pre-processed by css-loader.
+	Make sure css-loader is applied before apply-css-loader.
+`;
+
+function hasCssLoader(loaders: any[], loaderIndex: number) {
+	return loaders
+		?.slice(loaderIndex)
+		.some(({ path }) => path.includes('css-loader'));
+}
+
+export default function loader(content, map) {
+	// if (this.request.match(/\/app\.(css|scss|less|sass)$/)) {
+	// 	return content;
+	// }
+
+	// Emit a warning if the file was not processed by the css-loader.
+	if (!hasCssLoader(this.loaders, this.loaderIndex)) {
+		this.emitWarning(new Error(cssLoaderWarning));
+	}
+
+	content = dedent`
+		/* CSS START */
+		${content}
+		/* CSS END */
+
+		/* APPLY CSS */
+		const { Application } = require("@nativescript/core");
+		require("@nativescript/core/ui/styling/style-scope");
+
+		if (___CSS_LOADER_EXPORT___ && typeof ___CSS_LOADER_EXPORT___.forEach === "function") {
+			___CSS_LOADER_EXPORT___.forEach(cssExport => {
+				if (cssExport.length > 1 && cssExport[1]) {
+					// applying the second item of the export as it contains the css contents
+					Application.addCss(cssExport[1]);
+				}
+			});
+		}
+	`;
+
+	this.callback(null, content, map);
+}

packages/webpack5/src/loaders/css2json-loader/index.ts

@@ -1 +1,72 @@
-//
+import { parse, Import, Stylesheet } from 'css';
+import { urlToRequest } from 'loader-utils';
+
+const betweenQuotesPattern = /('|")(.*?)\1/;
+const unpackUrlPattern = /url\(([^\)]+)\)/;
+const inlineLoader = '!css2json-loader?useForImports!';
+
+export default function loader(content: string, map: any) {
+	const options = this.getOptions() || {};
+	const inline = !!options.useForImports;
+	const requirePrefix = inline ? inlineLoader : '';
+
+	const ast = parse(content);
+
+	let dependencies = [];
+	getImportRules(ast)
+		.map(extractUrlFromRule)
+		.map(createRequireUri)
+		.forEach(({ uri, requireURI }) => {
+			dependencies.push(
+				`global.registerModule("${uri}", () => require("${requirePrefix}${requireURI}"));`
+			);
+
+			// Call registerModule with requireURI to handle cases like @import "~@nativescript/theme/css/blue.css";
+			if (uri !== requireURI) {
+				dependencies.push(
+					`global.registerModule("${requireURI}", () => require("${requirePrefix}${requireURI}"));`
+				);
+			}
+		});
+
+	const str = JSON.stringify(ast, (k, v) => (k === 'position' ? undefined : v));
+
+	// map.mappings = map.mappings.replace(/;{2,}/, '')
+
+	this.callback(
+		null,
+		`${dependencies.join('\n')}module.exports = ${str};`,
+		null
+	);
+}
+
+function getImportRules(ast: Stylesheet): Import[] {
+	if (!ast || (<any>ast).type !== 'stylesheet' || !ast.stylesheet) {
+		return [];
+	}
+	return <Import[]>(
+		ast.stylesheet.rules.filter(
+			(rule) => rule.type === 'import' && (<any>rule).import
+		)
+	);
+}
+
+/**
+ * Extracts the url from import rule (ex. `url("./platform.css")`)
+ */
+function extractUrlFromRule(importRule: Import): string {
+	const urlValue = importRule.import;
+
+	const unpackedUrlMatch = urlValue.match(unpackUrlPattern);
+	const unpackedValue = unpackedUrlMatch ? unpackedUrlMatch[1] : urlValue;
+
+	const quotesMatch = unpackedValue.match(betweenQuotesPattern);
+	return quotesMatch ? quotesMatch[2] : unpackedValue;
+}
+
+function createRequireUri(uri): { uri: string; requireURI: string } {
+	return {
+		uri: uri,
+		requireURI: urlToRequest(uri),
+	};
+}

packages/webpack5/src/transformers/NativeClass/index.ts

@@ -1 +1,46 @@
-// todo
+import ts from 'typescript';
+
+export default function (ctx: ts.TransformationContext) {
+	function isNativeClassExtension(node: ts.ClassDeclaration) {
+		return (
+			node.decorators &&
+			node.decorators.filter((d) => {
+				const fullText = d.getFullText().trim();
+				return fullText.indexOf('@NativeClass') > -1;
+			}).length > 0
+		);
+	}
+	function visitNode(node: ts.Node): ts.Node {
+		if (ts.isClassDeclaration(node) && isNativeClassExtension(node)) {
+			return createHelper(node);
+		}
+		return ts.visitEachChild(node, visitNode, ctx);
+	}
+
+	function createHelper(node: ts.Node) {
+		// we remove the decorator for now!
+		return ts.createIdentifier(
+			ts
+				.transpileModule(
+					node.getText().replace(/@NativeClass(\((.|\n)*?\))?/gm, ''),
+					{
+						compilerOptions: {
+							noEmitHelpers: true,
+							module: ts.ModuleKind.CommonJS,
+							target: ts.ScriptTarget.ES5,
+						},
+					}
+				)
+				.outputText.replace(
+					/(Object\.defineProperty\(.*?{.*?)(enumerable:\s*false)(.*?}\))/gs,
+					'$1enumerable: true$3'
+				)
+		);
+	}
+
+	return (source: ts.SourceFile) =>
+		ts.updateSourceFileNode(
+			source,
+			ts.visitNodes(source.statements, visitNode)
+		);
+}