mirror of
https://github.com/expressjs/expressjs.com.git
synced 2026-02-21 19:41:33 +00:00
feat: add copy code btn (#1841)
* test: copy code btn * add copy btn svg * add copy code btn * fix: keyboard a11y and improve design * show "copied !" text on the copy btn * remove space in copied text * Remove text shift * handle failed copy code * Minimize delay * remove outline on code blocks * refactor copycode.js * Remove border width Co-authored-by: Sebastian Beltran <bjohansebas@gmail.com> * Convert timerId into a Number() Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> --------- Co-authored-by: Carlos Stenzel <carlosstenzel@hotmail.com> Co-authored-by: Sebastian Beltran <bjohansebas@gmail.com> Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
This commit is contained in:
shubham oulkar
@@ -45,6 +45,7 @@
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<script data-cfasync="false" src="//ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
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<script data-cfasync="false" src="/js/app.js"></script>
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<script data-cfasync="false" defer src="/js/menu.js"></script>
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<script data-cfasync="false" defer src="/js/copycode.js"></script>
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<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/docsearch.js@2/dist/cdn/docsearch.min.css" />
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<link rel="alternate" type="application/atom+xml" href="/feed.xml" title="Express Blog" />
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120
css/style.css
120
css/style.css
@@ -344,14 +344,132 @@ code {
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pre {
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padding: 16px;
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border-radius: 3px;
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border: 1px solid #ddd;
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border: 1px solid var(--border);
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background-color: var(--code-bg);
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/* keyboard focus offset improve visibility */
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&:focus {
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border-color: var(--hover-border);
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}
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}
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pre code {
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padding: 0;
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}
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pre:has(code) {
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position: relative;
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&:is(:hover, :focus) {
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button {
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display: flex;
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}
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}
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/* focus copy btn by keyboard */
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&:focus-within button {
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display: flex;
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}
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}
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pre:has(code) button {
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position: absolute;
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top: 5px;
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right: 5px;
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border: none;
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z-index: 100;
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display: none;
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cursor: pointer;
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background-color: inherit;
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padding: 2px;
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border-radius: 5px;
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&::after {
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content: "";
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background-color: var(--card-fg);
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mask-image: url("../images/copy-btn.svg");
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mask-size: 1.5rem;
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mask-repeat: no-repeat;
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width: 1.5rem;
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height: 1.5rem;
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}
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&:is(:hover, :focus) {
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background-color: var(--hover-bg);
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outline: 2px solid var(--hover-border);
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}
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@media all and (max-width: 370px) {
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padding: 1px;
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&::after {
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mask-size: 1rem;
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width: 1rem;
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height: 1rem;
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}
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}
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}
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pre:has(code) button.copied {
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outline-color: var(--supported-fg);
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&::after {
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background-color: var(--supported-fg);
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}
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&::before {
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font-size: 0.85rem;
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position: absolute;
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left: -58px;
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content: "copied!";
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width: fit-content;
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height: fit-content;
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padding: 4px;
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border-radius: 2px;
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color: var(--card-fg);
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background-color: var(--card-bg);
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outline: 1px solid var(--supported-fg);
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}
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@media all and (max-width: 400px) {
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&::before {
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left: -50px;
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font-size: 0.7rem;
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padding: 3px;
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}
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}
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}
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pre:has(code) button.failed {
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outline-color: var(--eol-fg);
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&::after {
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background-color: var(--eol-fg);
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}
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&::before {
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font-size: 0.85rem;
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position: absolute;
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left: -58px;
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content: "failed!";
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width: fit-content;
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height: fit-content;
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padding: 4px;
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border-radius: 2px;
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color: var(--card-fg);
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background-color: var(--card-bg);
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outline: 1px solid var(--eol-fg);
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}
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@media all and (max-width: 400px) {
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&::before {
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left: -50px;
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font-size: 0.7rem;
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padding: 3px;
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}
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}
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}
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/* top button */
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.scroll #top {
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1
images/copy-btn.svg
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1
images/copy-btn.svg
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@@ -0,0 +1 @@
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<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" aria-hidden="true" data-slot="icon" class="CodeBox_icon__pCRVM"><path stroke-linecap="round" stroke-linejoin="round" d="M15.75 17.25v3.375c0 .621-.504 1.125-1.125 1.125h-9.75a1.125 1.125 0 0 1-1.125-1.125V7.875c0-.621.504-1.125 1.125-1.125H6.75a9.06 9.06 0 0 1 1.5.124m7.5 10.376h3.375c.621 0 1.125-.504 1.125-1.125V11.25c0-4.46-3.243-8.161-7.5-8.876a9.06 9.06 0 0 0-1.5-.124H9.375c-.621 0-1.125.504-1.125 1.125v3.5m7.5 10.375H9.375a1.125 1.125 0 0 1-1.125-1.125v-9.25m12 6.625v-1.875a3.375 3.375 0 0 0-3.375-3.375h-1.5a1.125 1.125 0 0 1-1.125-1.125v-1.5a3.375 3.375 0 0 0-3.375-3.375H9.75"></path></svg>
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After Width: | Height: | Size: 717 B |
57
js/copycode.js
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57
js/copycode.js
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@@ -0,0 +1,57 @@
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const codeBlocks = document.querySelectorAll("pre:has(code)");
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codeBlocks.forEach((block) => {
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// Only add button if browser supports Clipboard API
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if (!navigator.clipboard) return;
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const button = createCopyButton();
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block.appendChild(button);
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block.setAttribute("tabindex", 0); // Add keyboard a11y for <pre></pre>
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button.addEventListener("click", async () => {
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await copyCode(block, button);
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});
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});
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function createCopyButton() {
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const button = document.createElement("button");
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setButtonAttributes(button, {
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type: "button", // button doesn't act as a submit button
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title: "copy code",
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"aria-label": "click to copy code",
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});
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return button;
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}
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function setButtonAttributes(button, attributes) {
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for (const [key, value] of Object.entries(attributes)) {
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button.setAttribute(key, value);
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}
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}
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async function copyCode(block, button) {
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const code = block.querySelector("code");
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const text = code.innerText;
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try {
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await navigator.clipboard.writeText(text);
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updateButtonState(button, "copied", "code is copied!");
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} catch {
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updateButtonState(button, "failed", "failed!");
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}
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}
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function updateButtonState(button, statusClass, ariaLabel) {
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button.setAttribute("aria-live", "polite");
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button.setAttribute("aria-label", ariaLabel);
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button.classList.add(statusClass);
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// Clear any existing timer
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if (button.dataset.timerId) clearTimeout(Number(button.dataset.timerId));
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const timer = setTimeout(() => {
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button.classList.remove(statusClass);
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button.setAttribute("aria-label", "click to copy code");
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}, 1000);
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button.dataset.timerId = timer;
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}
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