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| author | Bradley Taunt <bt@btxx.org> | 2024-07-02 14:22:21 -0400 |
|---|---|---|
| committer | Bradley Taunt <bt@btxx.org> | 2024-07-02 14:22:21 -0400 |
| commit | 3f6a9546ec13063d0d5bdf21d30a93d3e8aa6050 (patch) | |
| tree | 947985c4eda1bceb1910bc01739c32fd0baad181 /build/posts/dynamic-checkboxes/index.html | |
| parent | 14074019d62d98885c4c764401a9e7e1fd129f79 (diff) | |
Diffstat (limited to 'build/posts/dynamic-checkboxes/index.html')
| -rw-r--r-- | build/posts/dynamic-checkboxes/index.html | 413 |
1 files changed, 0 insertions, 413 deletions
diff --git a/build/posts/dynamic-checkboxes/index.html b/build/posts/dynamic-checkboxes/index.html deleted file mode 100644 index ebb2462..0000000 --- a/build/posts/dynamic-checkboxes/index.html +++ /dev/null @@ -1,413 +0,0 @@ -<!doctype html> -<html lang="en"> -<head> - <meta charset="utf-8"> - <meta name="viewport" content="width=device-width, initial-scale=1"> - <meta name="color-scheme" content="dark light"> - <link rel="icon" href="data:,"> - <title>Dynamic Checkboxes</title> - <link href="/atom.xml" type="application/atom+xml" rel="alternate" title="Atom feed for blog posts" /> - <link href="/rss.xml" type="application/rss+xml" rel="alternate" title="RSS feed for blog posts" /> -<style>*{box-sizing:border-box;}body{font-family:sans-serif;line-height:1.33;margin:0 auto;max-width:650px;padding:1rem;}blockquote{background:rgba(0,0,0,0.1);border-left:4px solid;padding-left:5px;}img{max-width:100%;}pre{border:1px solid;overflow:auto;padding:5px;}table{text-align:left;width:100%;}.footnotes{font-size:90%;}</style> -</head> - -<nav> - <a href="#menu">Menu ↓</a> -</nav> - -<main> -<h1 id="dynamic-checkboxes">Dynamic Checkboxes</h1> -<p>2019-07-30</p> -<p>Checkboxes are used quite frequently on forms across the web. Whether you’re selecting a pricing plan during a site’s sign-up process or just simply selecting to opt-out from a newsletter, you have most likely interacted with some form of checkbox element.</p> -<p>What if we could make everyday checkboxes more beautiful <em>and</em> more intuitive? <em>It’s easier than you think</em>. We only need a small amount of CSS and JavaScript to make considerable improvements to your average checkbox UX.</p> -<p>Let’s get into it.</p> -<h2 id="what-we-are-building">What we are building</h2> -<p>Take a look and play around with the CodePen below to get an idea of what we are going to build. The premise is a simple add-on pricing form which calculates the additional monthly total to the user in real-time.</p> -<p><a href="https://codepen.io/bradleytaunt/pen/rXWEpy/">Live CodePen Example</a></p> -<h2 id="the-structure-html">The Structure (HTML)</h2> -<p>As always, we will start by breaking down the “bones” of the HTML structure for this checkbox form. Let’s take a look at the HTML in it’s entirety (don’t worry, it is a lot more simple than it seems at first glance):</p> -<pre><code><h2>Add-ons</h2> - -<input class="checkbox-btn" name="checkbox-collection" id="checkbox-1" type="checkbox" value="49"> -<label class="checkbox-label" for="checkbox-1"> - <span> - White-labeled Domain - <em>Use your own custom domain with SSL security included.</em> - </span> - <span>$49/mo</span> -</label> - -<input class="checkbox-btn" name="checkbox-collection" id="checkbox-2" type="checkbox" value="49"> -<label class="checkbox-label" for="checkbox-2"> - <span> - API Access - <em>Make API calls to perform custom serving and account actions.</em> - </span> - <span>$49/mo</span> -</label> - -<input class="checkbox-btn" name="checkbox-collection" id="checkbox-3" type="checkbox" value="349"> -<label class="checkbox-label" for="checkbox-3"> - <span> - Priority Support - <em>A dedicated account manager to assist your team with ongoing deployments.</em> - </span> - <span>$349/mo</span> -</label> - -<div class="total-cost"> - <h2>Your Plan</h2> - <div> - <span>$</span> - <span id="total-cost-inner">0</span> - <input id="output" type="text" value="0" disabled/> - <span>/mo</span> - </div> -</div> -</code></pre> -<h3 id="the-checkbox-inputs-labels">The checkbox inputs & labels</h3> -<pre><code><!-- #1 --> -<input class="checkbox-btn" name="checkbox-collection" id="checkbox-1" type="checkbox" value="49"> - -<!-- #2 --> -<label class="checkbox-label" for="checkbox-1"> - - <!-- #2i --> - <span> - White-labeled Domain - <em>Use your own custom domain with SSL security included.</em> - </span> - - <!-- #2ii --> - <span>$49/mo</span> - -</label> -</code></pre> -<ol> -<li><p>This input will be hidden via <code>position:absolute</code> by default. All checkbox inputs need to share the same <code>name</code> value and all checkboxes require their our custom <code>id</code> that will link with the corresponding <code>for</code> value on the label.</p></li> -<li><p>This label needs it’s <code>for</code> value to correspond with it’s partnered checkbox.</p> -<ul> -<li>i) The first span holds the title and description information of the add-on</li> -<li>ii) The last span holds the cost associated with the current add-on</li> -</ul></li> -</ol> -<h3 id="the-total-cost-container-output">The total cost container output</h3> -<pre><code><!-- #1 --> -<div class="total-cost"> - - <h2>Your Plan</h2> - - <!-- #2 --> - <div> - - <!-- #2i --> - <span>$</span> - - <!-- #2ii --> - <span id="total-cost-inner">0</span> - - <!-- #2iii --> - <input id="output" type="text" value="0" disabled/> - - <!-- #2iv --> - <span>/mo</span> - - </div> - -</div> -</code></pre> -<ol> -<li><p>A simple <code>div</code> with a class we can easily target later</p></li> -<li><p>A <code>div</code> parent container is needed to house all the total <code>spans</code> together (more on this when we get into the CSS)</p> -<ul> -<li>i) The first <code>span</code> holds the static currency symbol</li> -<li>ii) The second <code>span</code> is where our updated cost will be injected</li> -<li>iii) This input field is required for us to take-in the <code>value</code> of the associated <code>:checked</code> inputs and add them together. This current value is then used for the injection into the second <code>span</code></li> -<li>iv) The final <code>span</code> simply holds the static monthly duration content</li> -</ul></li> -</ol> -<p>All that’s all we need for the HTML!</p> -<h2 id="the-visuals-css">The Visuals (CSS)</h2> -<p>Again, lets take a look at the entire file before we break it down step-by-step:</p> -<pre><code>.checkbox-label { - align-items: center; - background-color: none; - border: 1px solid lightgrey; - border-radius: 5px; - cursor: pointer; - display: flex; - font-weight: 600; - justify-content: space-between; - margin: 0 auto 10px; - padding: 20px 20px 20px 70px; - position: relative; - transition: .3s ease all; - width: 100%; -} -.checkbox-label span:last-child { - padding: 0 0 0 20px; -} -.checkbox-label:hover { - background-color: rgba(255,255,255,0.2); -} -.checkbox-label:before { - background-repeat: no-repeat; - background-position: center; - background-size: 15px; - border: 1px solid lightgrey; - border-radius: 50%; - content:''; - height: 30px; - left: 20px; - position: absolute; - top: calc(50% - 15px); - transition: .3s ease background-color; - width: 30px; -} -.checkbox-label:hover:before { - background-image: - url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="23.571429" height="23.571429" viewBox="0.000000 -47.142857 23.571429 23.571429"><path fill="lightgrey" d="M23.571429 -36.964286L23.571429 -33.750000C23.571429 -33.303571 23.415179 -32.924107 23.102679 -32.611607C22.790179 -32.299107 22.410714 -32.142857 21.964286 -32.142857L15.000000 -32.142857L15.000000 -25.178571C15.000000 -24.732143 14.843750 -24.352679 14.531250 -24.040179C14.218750 -23.727679 13.839286 -23.571429 13.392857 -23.571429L10.178571 -23.571429C9.732143 -23.571429 9.352679 -23.727679 9.040179 -24.040179C8.727679 -24.352679 8.571429 -24.732143 8.571429 -25.178571L8.571429 -32.142857L1.607143 -32.142857C1.160714 -32.142857 0.781250 -32.299107 0.468750 -32.611607C0.156250 -32.924107 0.000000 -33.303571 0.000000 -33.750000L0.000000 -36.964286C0.000000 -37.410714 0.156250 -37.790179 0.468750 -38.102679C0.781250 -38.415179 1.160714 -38.571429 1.607143 -38.571429L8.571429 -38.571429L8.571429 -45.535714C8.571429 -45.982143 8.727679 -46.361607 9.040179 -46.674107C9.352679 -46.986607 9.732143 -47.142857 10.178571 -47.142857L13.392857 -47.142857C13.839286 -47.142857 14.218750 -46.986607 14.531250 -46.674107C14.843750 -46.361607 15.000000 -45.982143 15.000000 -45.535714L15.000000 -38.571429L21.964286 -38.571429C22.410714 -38.571429 22.790179 -38.415179 23.102679 -38.102679C23.415179 -37.790179 23.571429 -37.410714 23.571429 -36.964286ZM23.571429 -36.964286"></path></svg>'); -} -.checkbox-label span { - -webkit-user-select: none; - -moz-user-select: none; - user-select: none; -} -.checkbox-label span em { - display: block; - font-size: 80%; - font-style: normal; - font-weight: 400; - line-height: 1.2; -} -.checkbox-btn { - position: absolute; - visibility: hidden; -} -.checkbox-btn:checked + .checkbox-label { - background-color: white; - border-color: mediumpurple; - box-shadow: 0 2px 4px rgba(0,0,0,0.05); -} -.checkbox-btn:checked + .checkbox-label:before { - background-color: mediumpurple; - background-image: - url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="25.948661" height="19.888393" viewBox="2.025670 -40.011161 25.948661 19.888393"><path fill="white" d="M27.974330 -36.127232C27.974330 -35.680804 27.818080 -35.301339 27.505580 -34.988839L15.385045 -22.868304L13.108259 -20.591518C12.795759 -20.279018 12.416295 -20.122768 11.969866 -20.122768C11.523438 -20.122768 11.143973 -20.279018 10.831473 -20.591518L8.554688 -22.868304L2.494420 -28.928571C2.181920 -29.241071 2.025670 -29.620536 2.025670 -30.066964C2.025670 -30.513393 2.181920 -30.892857 2.494420 -31.205357L4.771205 -33.482143C5.083705 -33.794643 5.463170 -33.950893 5.909598 -33.950893C6.356027 -33.950893 6.735491 -33.794643 7.047991 -33.482143L11.969866 -28.543527L22.952009 -39.542411C23.264509 -39.854911 23.643973 -40.011161 24.090402 -40.011161C24.536830 -40.011161 24.916295 -39.854911 25.228795 -39.542411L27.505580 -37.265625C27.818080 -36.953125 27.974330 -36.573661 27.974330 -36.127232ZM27.974330 -36.127232"></path></svg>'); - border-color: mediumpurple; -} - -.total-cost { - align-items: baseline; - border-top: 1px solid lightgrey; - display: flex; - justify-content: space-between; - margin-top: 40px; - padding: 40px 20px 0; -} -.total-cost div { - align-items: baseline; - display: flex; -} -.total-cost span:nth-child(1) { - align-self: flex-start; - padding-top: 5px; -} -.total-cost span:nth-child(2) { - font-size: 32px; - font-weight: bold; -} -.total-cost input { - display: none; -} - -@media(max-width:480px) { - .checkbox-label { - align-items: flex-start; - flex-direction: column; - flex-wrap: wrap; - } - .checkbox-label span:last-child { - padding: 10px 0 0 0; - } -} -</code></pre> -<h3 id="the-checkbox-label">The checkbox label</h3> -<pre><code>/* -This is the main element for each checkbox "container". -Inside it houses the title, description and price. -*/ -.checkbox-label { - align-items: center; - background-color: none; - border: 1px solid lightgrey; - border-radius: 5px; - cursor: pointer; - display: flex; - font-weight: 600; - justify-content: space-between; - margin: 0 auto 10px; - padding: 20px 20px 20px 70px; - position: relative; - transition: .3s ease all; - width: 100%; -} -.checkbox-label:hover { - background-color: rgba(255,255,255,0.2); -} - -/* Update the label styling when the input is :checked */ -.checkbox-btn:checked + .checkbox-label { - background-color: white; - border-color: mediumpurple; - box-shadow: 0 2px 4px rgba(0,0,0,0.05); -} -</code></pre> -<h3 id="the-custom-checkbox-input">The custom checkbox input</h3> -<p>We need to hide the browser’s default checkbox input and replace it with our own using pseudo selectors.</p> -<pre><code>/* Hide browser default input */ -.checkbox-btn { - position: absolute; - visibility: hidden; -} - -/* Our custom input checkbox */ -.checkbox-label:before { - background-repeat: no-repeat; - background-position: center; - background-size: 15px; - border: 1px solid lightgrey; - border-radius: 50%; - content:''; - height: 30px; - left: 20px; - position: absolute; - top: calc(50% - 15px); - transition: .3s ease background-color; - width: 30px; -} - -/* -Here we add a simple '+' icon on hover -to our custom pseudo element. -Adding it as an inline SVG gives us the -ability to fully customize it's styling -*/ -.checkbox-label:hover:before { - background-image: - url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="23.571429" height="23.571429" viewBox="0.000000 -47.142857 23.571429 23.571429"><path fill="lightgrey" d="M23.571429 -36.964286L23.571429 -33.750000C23.571429 -33.303571 23.415179 -32.924107 23.102679 -32.611607C22.790179 -32.299107 22.410714 -32.142857 21.964286 -32.142857L15.000000 -32.142857L15.000000 -25.178571C15.000000 -24.732143 14.843750 -24.352679 14.531250 -24.040179C14.218750 -23.727679 13.839286 -23.571429 13.392857 -23.571429L10.178571 -23.571429C9.732143 -23.571429 9.352679 -23.727679 9.040179 -24.040179C8.727679 -24.352679 8.571429 -24.732143 8.571429 -25.178571L8.571429 -32.142857L1.607143 -32.142857C1.160714 -32.142857 0.781250 -32.299107 0.468750 -32.611607C0.156250 -32.924107 0.000000 -33.303571 0.000000 -33.750000L0.000000 -36.964286C0.000000 -37.410714 0.156250 -37.790179 0.468750 -38.102679C0.781250 -38.415179 1.160714 -38.571429 1.607143 -38.571429L8.571429 -38.571429L8.571429 -45.535714C8.571429 -45.982143 8.727679 -46.361607 9.040179 -46.674107C9.352679 -46.986607 9.732143 -47.142857 10.178571 -47.142857L13.392857 -47.142857C13.839286 -47.142857 14.218750 -46.986607 14.531250 -46.674107C14.843750 -46.361607 15.000000 -45.982143 15.000000 -45.535714L15.000000 -38.571429L21.964286 -38.571429C22.410714 -38.571429 22.790179 -38.415179 23.102679 -38.102679C23.415179 -37.790179 23.571429 -37.410714 23.571429 -36.964286ZM23.571429 -36.964286"></path></svg>'); -} - -/* -When the checkbox input is :checked we need to -update the inline SVG to use a checkmark symbol -*/ -.checkbox-btn:checked + .checkbox-label:before { - background-color: mediumpurple; - background-image: - url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="25.948661" height="19.888393" viewBox="2.025670 -40.011161 25.948661 19.888393"><path fill="white" d="M27.974330 -36.127232C27.974330 -35.680804 27.818080 -35.301339 27.505580 -34.988839L15.385045 -22.868304L13.108259 -20.591518C12.795759 -20.279018 12.416295 -20.122768 11.969866 -20.122768C11.523438 -20.122768 11.143973 -20.279018 10.831473 -20.591518L8.554688 -22.868304L2.494420 -28.928571C2.181920 -29.241071 2.025670 -29.620536 2.025670 -30.066964C2.025670 -30.513393 2.181920 -30.892857 2.494420 -31.205357L4.771205 -33.482143C5.083705 -33.794643 5.463170 -33.950893 5.909598 -33.950893C6.356027 -33.950893 6.735491 -33.794643 7.047991 -33.482143L11.969866 -28.543527L22.952009 -39.542411C23.264509 -39.854911 23.643973 -40.011161 24.090402 -40.011161C24.536830 -40.011161 24.916295 -39.854911 25.228795 -39.542411L27.505580 -37.265625C27.818080 -36.953125 27.974330 -36.573661 27.974330 -36.127232ZM27.974330 -36.127232"></path></svg>'); - border-color: mediumpurple; -} -</code></pre> -<h3 id="the-total-cost-container">The total cost container</h3> -<p>We only need some very basic flexbox styling for our bottom “total” container:</p> -<pre><code>.total-cost { - align-items: baseline; - border-top: 1px solid lightgrey; - display: flex; - justify-content: space-between; - margin-top: 40px; - padding: 40px 20px 0; -} -.total-cost div { - align-items: baseline; - display: flex; -} -.total-cost span:nth-child(1) { - align-self: flex-start; - padding-top: 5px; -} -.total-cost span:nth-child(2) { - font-size: 32px; - font-weight: bold; -} - -/* -This input is used in our JavaScript - look at the -function part of this post to understand why -*/ -.total-cost input { - display: none; -} -</code></pre> -<h3 id="last-but-not-least---mobile">Last but not least - mobile</h3> -<p>Now we just ensure that on smaller devices our checkbox labels render nicely:</p> -<pre><code>@media(max-width:480px) { - /* - Avoids the inner label content from squishing together - and becoming unreadable - */ - .checkbox-label { - align-items: flex-start; - flex-direction: column; - flex-wrap: wrap; - } - .checkbox-label span:last-child { - padding: 10px 0 0 0; - } -} -</code></pre> -<p>That’s it for the styling!</p> -<h2 id="the-function-js">The Function (JS)</h2> -<p>As you can see below, we only need a very minor amount of JavaScript to accomplish our total cost “injection”.</p> -<pre><code>window.onload=function(){ - -// Place the default browser checkbox inputs into a variable -var inputs = document.getElementsByClassName('checkbox-btn') - -// Now we loop through the inputs and check if they are -// greater than zero. If so, we run our function. -for (var i=0; i < inputs.length; i++) { - - inputs[i].onchange = function() { - - // Create `add` variable which takes the :checked input value - var add = this.value * (this.checked ? 1 : -1); - - // We grab the current total value on our hidden input field and return it - // as a floating point number - // (since in this use case it will be a price number based on currency) - var new_total = parseFloat(document.getElementById('output').value); - - // Now we simply add the existing total value with the newly ":checked" input value - var updated_total = document.getElementById('output').value=new_total + add - - // Place the new updated total directly inside the `total-cost-inner` span element - document.getElementById('total-cost-inner').innerHTML = updated_total; - } - -} -} -</code></pre> -<p>That’s it! Feel free to play with the demo some more at the top of the post, or check out the <a href="https://codepen.io/bradleytaunt/pen/rXWEpy">CodePen source directly</a>.</p> -<footer role="contentinfo"> - <h2>Menu Navigation</h2> - <ul id="menu"> - <li><a href="/">Home</a></li> - <li><a href="/projects">Projects</a></li> - <li><a href="/uses">Uses</a></li> - <li><a href="/wiki">Wiki</a></li> - <li><a href="/resume">Resume</a></li> - <li><a href="/colophon">Colophon</a></li> - <li><a href="/now">Now</a></li> - <li><a href="/donate">Donate</a></li> - <li><a href="/atom.xml">RSS</a></li> - <li><a href="#top">↑ Top of the page</a></li> - </ul> - <small> - Built with <a href="https://barf.btxx.org">barf</a>. <br> - Feeds: <a href="/atom.xml">Atom</a> & <a href="/rss.xml">RSS</a><br> - Maintained with ♥ for the web. <br> - Proud supporter of <a href="https://usefathom.com/ref/DKHJVX">Fathom</a> & <a href="https://nextdns.io/?from=74d3p3h8">NextDNS</a>. <br> - The content for this site is <a href="https://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>.<br> The <a href="https://git.sr.ht/~bt/bt.ht">code for this site</a> is <a href="https://git.sr.ht/~bt/bt.ht/tree/master/item/LICENSE">MIT</a>. - </small> -</footer>
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