mirror of https://github.com/python/cpython
60 lines
1.9 KiB
JavaScript
60 lines
1.9 KiB
JavaScript
document.addEventListener("DOMContentLoaded", function () {
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// add the search form and bind the events
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document
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.querySelector("h1")
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.insertAdjacentHTML(
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"afterend",
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[
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"<p>Filter entries by content:",
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'<input type="text" value="" id="searchbox" style="width: 50%">',
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'<input type="submit" id="searchbox-submit" value="Filter"></p>',
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].join("\n"),
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);
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function doFilter() {
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let query;
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try {
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query = new RegExp(document.querySelector("#searchbox").value, "i");
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} catch (e) {
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return; // not a valid regex (yet)
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}
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// find headers for the versions (What's new in Python X.Y.Z?)
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const h2s = document.querySelectorAll("#changelog h2");
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for (const h2 of h2s) {
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let sections_found = 0;
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// find headers for the sections (Core, Library, etc.)
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const h3s = h2.parentNode.querySelectorAll("h3");
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for (const h3 of h3s) {
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let entries_found = 0;
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// find all the entries
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const lis = h3.parentNode.querySelectorAll("li");
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for (let li of lis) {
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// check if the query matches the entry
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if (query.test(li.textContent)) {
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li.style.display = "block";
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entries_found++;
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} else {
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li.style.display = "none";
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}
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}
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// if there are entries, show the section, otherwise hide it
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if (entries_found > 0) {
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h3.parentNode.style.display = "block";
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sections_found++;
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} else {
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h3.parentNode.style.display = "none";
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}
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}
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if (sections_found > 0) {
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h2.parentNode.style.display = "block";
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} else {
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h2.parentNode.style.display = "none";
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}
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}
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}
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document.querySelector("#searchbox").addEventListener("keyup", doFilter);
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document
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.querySelector("#searchbox-submit")
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.addEventListener("click", doFilter);
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});
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