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< title >
Writing inline demos | Infusion
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< div class = "wrapper" >
< header class = "intro-and-nav" role = "banner" >
< div >
< div class = "intro" >
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< a class = "logo" href = "https://heydon.github.io/infusion/" aria-label = "Infusion pattern library home page" >
< img src = "https://heydon.github.io/infusion/images/logo.png" alt = "" >
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< / a >
< p class = "library-desc" > Documentation for the < strong > Infusion< / strong > pattern library builder. This documentation is constructed using the builder itself.< / p >
< / div >
< nav class = "patterns" role = "navigation" >
< ul >
< li class = "pattern" >
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< a href = "https://heydon.github.io/infusion/patterns/installation/" >
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< svg class = "bookmark" aria-hidden = "true" height = "50" width = "40" viewBox = "0 0 40 50" > < use xlink:href = "#bookmark" > < / use > < / svg >
< span > Installation< / span >
< / a >
< / li >
< / li >
< li class = "pattern" >
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< a href = "https://heydon.github.io/infusion/patterns/library-setup/" >
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< svg class = "bookmark" aria-hidden = "true" height = "50" width = "40" viewBox = "0 0 40 50" > < use xlink:href = "#bookmark" > < / use > < / svg >
< span > Library setup< / span >
< / a >
< / li >
< / li >
< li class = "pattern" >
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< a href = "https://heydon.github.io/infusion/patterns/serving/" >
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< svg class = "bookmark" aria-hidden = "true" height = "50" width = "40" viewBox = "0 0 40 50" > < use xlink:href = "#bookmark" > < / use > < / svg >
< span > Serving< / span >
< / a >
< / li >
< / li >
< li >
< h3 > Writing< / h3 >
< ul >
< li class = "pattern" >
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< a href = "https://heydon.github.io/infusion/patterns/writing/library-structure/" >
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< svg class = "bookmark" aria-hidden = "true" height = "50" width = "40" viewBox = "0 0 40 50" > < use xlink:href = "#bookmark" > < / use > < / svg >
< span > Library structure< / span >
< / a >
< / li >
< li class = "pattern" >
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< a href = "https://heydon.github.io/infusion/patterns/writing/markdown-and-metadata/" >
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< svg class = "bookmark" aria-hidden = "true" height = "50" width = "40" viewBox = "0 0 40 50" > < use xlink:href = "#bookmark" > < / use > < / svg >
< span > Markdown & metadata< / span >
< / a >
< / li >
< li class = "pattern" >
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< a href = "https://heydon.github.io/infusion/patterns/writing/expandable-sections/" >
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< svg class = "bookmark" aria-hidden = "true" height = "50" width = "40" viewBox = "0 0 40 50" > < use xlink:href = "#bookmark" > < / use > < / svg >
< span > Expandable sections< / span >
< / a >
< / li >
< li class = "pattern" >
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< a href = "https://heydon.github.io/infusion/patterns/writing/including-images/" >
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< svg class = "bookmark" aria-hidden = "true" height = "50" width = "40" viewBox = "0 0 40 50" > < use xlink:href = "#bookmark" > < / use > < / svg >
< span > Including images< / span >
< / a >
< / li >
< li class = "pattern" >
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< a href = "https://heydon.github.io/infusion/patterns/writing/notes-and-warnings/" >
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< svg class = "bookmark" aria-hidden = "true" height = "50" width = "40" viewBox = "0 0 40 50" > < use xlink:href = "#bookmark" > < / use > < / svg >
< span > Notes & warnings< / span >
< / a >
< / li >
< li class = "pattern" >
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< a href = "https://heydon.github.io/infusion/patterns/writing/references/" >
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< svg class = "bookmark" aria-hidden = "true" height = "50" width = "40" viewBox = "0 0 40 50" > < use xlink:href = "#bookmark" > < / use > < / svg >
< span > References< / span >
< / a >
< / li >
< / ul >
< / li >
< li >
< h3 > Exhibiting code< / h3 >
< ul >
< li class = "pattern" >
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< a href = "https://heydon.github.io/infusion/patterns/code/code-blocks/" >
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< svg class = "bookmark" aria-hidden = "true" height = "50" width = "40" viewBox = "0 0 40 50" > < use xlink:href = "#bookmark" > < / use > < / svg >
< span > Code blocks< / span >
< / a >
< / li >
< li class = "pattern" >
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< a href = "https://heydon.github.io/infusion/patterns/code/codepen-embedding/" >
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< svg class = "bookmark" aria-hidden = "true" height = "50" width = "40" viewBox = "0 0 40 50" > < use xlink:href = "#bookmark" > < / use > < / svg >
< span > CodePen embedding< / span >
< / a >
< / li >
< li class = "pattern" >
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< a href = "https://heydon.github.io/infusion/patterns/code/writing-inline-demos/" aria-current = "page" >
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< svg class = "bookmark" aria-hidden = "true" height = "50" width = "40" viewBox = "0 0 40 50" > < use xlink:href = "#bookmark" > < / use > < / svg >
< span > Writing inline demos< / span >
< / a >
< / li >
< / ul >
< / li >
< / ul >
< / nav >
< / div >
< / header >
< div class = "main-and-footer" >
< div >
< main id = "main" >
< h1 > Writing inline demos< / h1 >
< p > There are some issues with
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< a class = "pattern-link" href = "https://heydon.github.io/infusion/patterns/code/codepen-embedding/" >
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< svg class = "bookmark" aria-hidden = "true" height = "50" width = "40" viewBox = "0 0 40 50" >
< use xlink:href = "#bookmark" > < / use >
< / svg >
CodePen embedding
< / a >
, like them not working offline. They also come with CodePen branding, which will clash with the pattern you’ re trying to illustrate.< / p >
< p > < strong > Infusion< / strong > offers another option: a special < code > demo< / code > shortcode that allows you to write HTML, CSS, and JavaScript directly into the markdown file. The outputted demo is encapsulated using Shadow DOM, so you don’ t have to worry about broken styles and global JS.< / p >
< p > Here’ s the example code for an inline demo of a toggle button:< / p >
< pre class = "language-html line-numbers" > < code class = "language-html" data-codeblock-shortcode >
{ {< demo>}}
< button aria-pressed="false">Toggle Me< /button>
< style>
button {
background: DarkCyan;
color: white;
border: 0;
font-size: 1.5rem;
padding: 0.5em 1em;
border-right: 5px solid #000;
border-bottom: 5px solid #000;
}
[aria-pressed="true"] {
border: 0;
border-top: 5px solid #000;
border-left: 5px solid #000;
}
< /style>
< script>
var toggle = demo.querySelector('[aria-pressed]');
toggle.addEventListener('click', (e) => {
let pressed = e.target.getAttribute('aria-pressed') === 'true';
e.target.setAttribute('aria-pressed', !pressed);
});
< /script>
{ {< /demo>}}
< / code > < / pre >
< p > Note the < code > demo.querySelector< / code > on line < code > 21< / code > . < strong > Infusion< / strong > automatically provides < code > demo< / code > , representing the root node of the demo. It’ s like the < code > document< / code > keyword but for a demo’ s subtree.< / p >
< p > Here’ s a live demo of… the demo:< / p >
< p >
< div class = "demo-container" >
< div class = "demo" id = "demo-CiZsdDtidXR0b24" > < / div >
< template id = "template-CiZsdDtidXR0b24" >
< button aria-pressed = "false" > Toggle Me< / button >
< style >
button {
background: DarkCyan;
color: white;
border: 0;
font-size: 1.5rem;
padding: 0.5em 1em;
border-right: 5px solid #000;
border-bottom: 5px solid #000;
}
[aria-pressed="true"] {
border: 0;
border-top: 5px solid #000;
border-left: 5px solid #000;
}
< / style >
< script >
var toggle = demo.querySelector('[aria-pressed]');
toggle.addEventListener('click', (e) => {
let pressed = e.target.getAttribute('aria-pressed') === 'true';
e.target.setAttribute('aria-pressed', !pressed);
});
< / script >
< / template >
< script >
(function() {
var root = document.getElementById('demo-CiZsdDtidXR0b24');
if (document.head.attachShadow) {
root.attachShadow({mode: 'open'});
var template = document.getElementById('template-CiZsdDtidXR0b24');
var script = template.content.querySelector('script');
if (script) {
script.textContent = `(function() { var demo = document.getElementById(\'demo-CiZsdDtidXR0b24\').shadowRoot; ${script.textContent} })()`
}
root.shadowRoot.appendChild(document.importNode(template.content, true));
} else {
root.innerHTML = '< p class = "site-error" > < strong style = "font-weight:bold" > Site error:< / strong > Shadow DOM is needed to display encapsulated demos. The browser does not have an issue with the demo code itself.< / p > ';
}
})();
< / script >
< / div >
< / p >
< p > < aside aria-label = "note" class = "note" >
< div >
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< img src = "https://heydon.github.io/infusion/images/icon-info.svg" alt = "" >
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< p > Firefox does not currently support Shadow DOM and < strong > Infusion< / strong > does not include a polyfill. Firefox will output an error message. These demos function correctly in Chrome, Safari, and Opera.< / p >
< / div >
< / aside >
< / p >
< / main >
< footer role = "contentinfo" >
By Heydon Pickering
< / footer >
< / div >
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< / div >
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< script src = "https://heydon.github.io/infusion/js/prism.js" > < / script >
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< script src = "https://heydon.github.io/infusion/js/dom-scripts.js" > < / script >
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< / body >
< / html >
