com.metreeca.mark.tasks.Serve.js Maven / Gradle / Ivy

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A minimalist Maven plugin for static site generation

There is a newer version: 0.9.1

/*
 * Copyright © 2019-2020 Metreeca srl
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
 *  file except in compliance with the License. You may obtain a copy of the License at
 *
 *          http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is
 * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and limitations under the License.
 */

(function () {

	const styles=Array.from(document.querySelectorAll("style"))
		.map(style => style.src)
		.filter(src => src.startsWith(location.origin))
		.map(src => src.substring(location.origin.length));

	const scripts=Array.from(document.querySelectorAll("script"))
		.map(script => script.src)
		.filter(src => src.startsWith(location.origin))
		.map(src => src.substring(location.origin.length));


	function resource(path) {
		return path === location.pathname
			|| styles.some(style => style === path)
			|| scripts.some(script => script === path);
	}

	function poll() {
		fetch("/~")
			.then(response => response.text())
			.then(update => resource(update) && location.reload())
			.then(poll);
	}


	window.addEventListener("load", poll);

})();