mirror of
https://github.com/google/styleguide.git
synced 2024-03-22 13:11:43 +08:00
57 lines
2.1 KiB
JavaScript
57 lines
2.1 KiB
JavaScript
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window.initStyleGuide = function(init) {
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// Runs the callback on every element matched by the query selector.
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function find(querySelector, callback) {
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var elements = [].slice.call(document.querySelectorAll(querySelector));
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for (var i = 0; i < elements.length; i++) {
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callback(elements[i]);
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}
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}
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// Add the tocDiv at the top.
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var title = document.getElementsByTagName('h1')[0];
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var toc = document.createElement('div');
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toc.id = 'tocDiv';
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toc.className = 'vertical_toc';
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title.parentNode.insertBefore(toc, title.nextSibling);
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// If a paragraph starts with (e.g.) "Note:" or "Tip:" then add
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// that "callout class" to its element.
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find('p', function(paragraph) {
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var match = /^([a-z]+):/i.exec(paragraph.textContent);
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if (match) {
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paragraph.classList.add(match[1].toLowerCase());
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}
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});
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// Fill in text for intra-document links, ensuring that links
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// remain up-to-date even if sections are moved or renumbered.
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// This triggers on any link with "??" as its text and a URL
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// starting with "#", and the filled-in text is exactly the same
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// as the text of the referenced section heading.
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find('a[href^="#"]', function(link) {
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var href = link.getAttribute('href');
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var heading = document.getElementById(href.substring(1));
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// Fill in link text with heading title
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if (heading && link.textContent == '??') {
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link.textContent = heading.textContent;
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}
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});
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// Hoedown renders fenced code blocks incompatibly with what
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// prettify expects. As a result, prettify doesn't handle them
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// properly. Fix it by moving the code directly into the pre.
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find('pre > code', function(code) {
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var pre = code.parentElement;
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pre.className = code.className;
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pre.innerHTML = code.innerHTML;
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});
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// Run the normal init function.
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init();
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// Call the pretty-printer after we've fixed up the code blocks.
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var pretty = document.createElement('script');
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pretty.src = 'https://cdn.rawgit.com/google/code-prettify/master/loader/' +
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'run_prettify.js';
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document.body.appendChild(pretty);
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}.bind(null, window.initStyleGuide);
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