feat: added /napi-rs engine (#480)

BREAKING CHANGE: removed `cb` parameter in `getImageData()`
BREAKING CHANGE: removed `cb` parameter in `measureText()`
BREAKING CHANGE: removed `cb` parameter in `createPattern()`
BREAKING CHANGE: removed `cb` parameter in `wrapText()`
BREAKING CHANGE: renamed `createJPEGStream()` to `jpegStream()`
BREAKING CHANGE: renamed `createPDFStream()` to `pdfStream()`
BREAKING CHANGE: renamed `createPNGStream()` to `pngStream()`
BREAKING CHANGE: renamed `setAntiAliasing()` to `setAntialiasMode()`
BREAKING CHANGE: `jpg()` now returns a synchronous response
BREAKING CHANGE: `pdf()` now returns a synchronous response
BREAKING CHANGE: `png()` now returns a synchronous response
BREAKING CHANGE: `svg()` now returns a synchronous response
BREAKING CHANGE: removed `cb` parameter in `getFontVariant()`
BREAKING CHANGE: removed `cb` parameter in `getTextTracking()`
BREAKING CHANGE: removed `cb` parameter in `getTextWrap()`
BREAKING CHANGE: renamed `getPages()` to `get pages`
BREAKING CHANGE: renamed `jpg()` to `jpeg()`
BREAKING CHANGE: renamed `newPages()` to `addPage()`

.eslintignore

@@ -1,4 +1,2 @@
 node_modules/
 dist/
-*.js
-*.mjs

.gitignore

@@ -9,24 +9,13 @@ docs/
 # Ignore tsc dist folder
 dist/
 
-# Ignore JavaScript files
-**/*.js
-**/*.mjs
-**/*.js.map
-**/*.d.ts
-!src/**/*.d.ts
+# Ignore generated files
+src/browser.ts
+src/cairo.ts
+src/napi-rs.ts
+src/skia.ts
 **/*.tsbuildinfo
 
-!browser.d.ts
-!browser.js
-!browser.mjs
-!cairo.d.ts
-!cairo.js
-!cairo.mjs
-!skia.d.ts
-!skia.js
-!skia.mjs
-
 # Ignore heapsnapshot and log files
 *.heapsnapshot
 *.log
@@ -42,4 +31,4 @@ wiki/
 
 # Yarn files
 .yarn/install-state.gz
-.yarn/build-state.yml
+.yarn/build-state.yml

generator.config.json

@@ -0,0 +1,22 @@
+{
+	"main": "./src/main.tst",
+	"output": "./src/[name].ts",
+	"entries": [
+		{
+			"name": "browser",
+			"defines": ["BROWSER"]
+		},
+		{
+			"name": "cairo",
+			"defines": ["CAIRO"]
+		},
+		{
+			"name": "napi-rs",
+			"defines": ["NAPI_RS"]
+		},
+		{
+			"name": "skia",
+			"defines": ["SKIA"]
+		}
+	]
+}

package.json

@@ -22,6 +22,11 @@
 			"require": "./dist/cairo.js",
 			"types": "./dist/cairo.d.ts"
 		},
+		"./napi-rs": {
+			"import": "./dist/napi-rs.mjs",
+			"require": "./dist/napi-rs.js",
+			"types": "./dist/napi-rs.d.ts"
+		},
 		"./skia": {
 			"import": "./dist/skia.mjs",
 			"require": "./dist/skia.js",
@@ -31,10 +36,12 @@
 	"sideEffects": false,
 	"scripts": {
 		"prepublishOnly": "yarn build",
-		"lint": "eslint src --ext ts --fix",
-		"docs": "typedoc",
+		"lint": "eslint scripts --ext mjs --fix",
+		"docs": "rn build:gen && typedoc",
 		"update": "yarn upgrade-interactive --latest",
-		"build": "rollup -c rollup.config.ts",
+		"build": "yarn build:gen && yarn build:ts",
+		"build:gen": "node ./scripts/generate.mjs",
+		"build:ts": "rollup -c rollup.config.ts",
 		"watch": "yarn build -w",
 		"sversion": "standard-version",
 		"prepare": "husky install .github/husky"
@@ -45,6 +52,7 @@
 	"devDependencies": {
 		"@commitlint/cli": "^17.0.1",
 		"@commitlint/config-conventional": "^17.0.0",
+		"@napi-rs/canvas": "0.1.21",
 		"@sapphire/eslint-config": "^4.3.5",
 		"@sapphire/prettier-config": "1.4.3",
 		"@sapphire/ts-config": "3.3.4",

rollup.config.ts

@@ -21,6 +21,7 @@ export default defineConfig([
 				file: './dist/browser.umd.js',
 				format: 'umd',
 				name: 'CanvasConstructor',
+				strict: true,
 				sourcemap: true
 			}
 		],
@@ -30,6 +31,7 @@ export default defineConfig([
 		input: {
 			browser: 'src/browser.ts',
 			cairo: 'src/cairo.ts',
+			'napi-rs': 'src/napi-rs.ts',
 			skia: 'src/skia.ts'
 		},
 		output: [
@@ -39,6 +41,7 @@ export default defineConfig([
 				format: 'cjs',
 				exports: 'named',
 				sourcemap: true,
+				strict: true,
 				compact: false
 			},
 			{
@@ -47,10 +50,11 @@ export default defineConfig([
 				format: 'es',
 				exports: 'named',
 				sourcemap: true,
+				strict: true,
 				compact: false
 			}
 		],
 		plugins: [pluginsTypeScript, pluginsTerser],
-		external: ['canvas', 'skia-canvas']
+		external: ['node:util', 'canvas', 'skia-canvas', '@napi-rs/canvas']
 	}
 ]);

scripts/generate.mjs

@@ -0,0 +1,60 @@
+import { readFile, writeFile } from 'node:fs/promises';
+import configuration from '../generator.config.json' assert { type: 'json' };
+
+const root = new URL('../', import.meta.url);
+const input = new URL(configuration.main, root);
+console.debug(`Input file: '${input.href}'`);
+
+const text = await readFile(input, 'utf8');
+
+for (const entry of configuration.entries) {
+	const output = new URL(configuration.output.replace('[name]', entry.name), root);
+
+	const content = replaceAll(entry.defines);
+	await writeFile(output, content, 'utf8');
+	console.info(`Written ${content.length.toLocaleString('en-US')} bytes into`, output.href, '...');
+}
+
+/**
+ * @param {string} variables The variable to check.
+ * @param {string[]} defines
+ */
+function isIncluded(variables, defines) {
+	for (const variable of variables.split(',')) {
+		if (variable.startsWith('!')) {
+			return !defines.includes(variable.slice(1));
+		} else if (defines.includes(variable)) {
+			return true;
+		}
+	}
+
+	return false;
+}
+
+/**
+ * @param {string} content
+ * @param {string} header
+ * @returns {string}
+ */
+function getContent(content, header) {
+	return content.includes('\n')
+		? content
+				.slice(8 + header.length)
+				.replaceAll('\\\n', '\n')
+				.split('\n')
+				.map((line) => line.trimEnd())
+				.join('\n')
+		: content.slice(8 + header.length).trim();
+}
+
+/**
+ * @param {string[]} defines
+ * @returns {string}
+ */
+function replaceAll(defines) {
+	return text
+		.replaceAll(/\/\/ IF\(([A-Z_,!]+)\):([^\n]|(?<=\\)\n)+/g, (match, variables) =>
+			isIncluded(variables, defines) ? getContent(match, variables) : ''
+		)
+		.replaceAll(/\n\n+/g, '\n\n');
+}