72 lines
2.1 KiB
Dart
72 lines
2.1 KiB
Dart
import 'dart:html' as html show HttpRequest, Element, querySelector;
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import 'package:html/parser.dart' show parse;
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import 'package:html/dom.dart' as dom show Element;
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final excluded_keywords = ['index', 'CONTRIBUTING', 'LICENSE', 'README'];
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// Get the sitemap content
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Future<String> fetchRemoteSitemap() async {
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const path = 'sitemap.html';
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try {
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return await html.HttpRequest.getString(path);
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} catch (e) {
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print('Couldn’t open $path');
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}
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return 'Error';
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}
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// Parse the list of elements and detect pages from this list
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Map<String, String> detectPages(List<dom.Element> sitemap, [String prefix]) {
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final links = <String, String>{};
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for (var elem in sitemap) {
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for (var kw in excluded_keywords) {
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if (elem.outerHtml.contains(kw)) {
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continue;
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}
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}
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if (elem.innerHtml.startsWith('<a')) {
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elem = elem.firstChild;
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final url = elem.attributes['href'];
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final text = elem.firstChild.text;
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links[url] = (prefix == null) ? text : '$text ($prefix)';
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} else {
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final prefix = elem.firstChild.text;
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final ul = elem.children[0].children;
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links.addAll(detectPages(ul, prefix));
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}
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}
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return links;
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}
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// This function returns a Map which contains all links to languages detected
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// from the sitemap.
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Future<Map<String, String>> parseSitemap() async {
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final content = await fetchRemoteSitemap();
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final sitemap = parse(content).getElementsByClassName('org-ul')[0].children;
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return detectPages(sitemap);
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}
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Future sleep(Duration time) async {
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return Future.delayed(time);
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}
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Future<html.Element> getSitemap() async {
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final sitemap = await parseSitemap();
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final pages = <html.Element>[];
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sitemap.forEach((url, name) {
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final link = html.Element.li()
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..classes.add('dropdown-item')
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..append(html.Element.a()
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..attributes['href'] = url
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..innerText = name);
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pages.add(link);
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});
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var drop_container;
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do {
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await sleep(Duration(seconds: 1));
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drop_container = html.querySelector('#drop-page');
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} while (drop_container != null);
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pages.forEach((link) => drop_container.append(link));
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}
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