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Merge pull request #2426 from ZhenShuo2021/fix/code-copy

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🐛 Fix(code.js): filter line number on code copy
This commit is contained in:
Nuno C.
2025-09-15 23:03:55 +01:00
committed by GitHub
parent 64aed3c6e7 0840169724
commit e6cd7a9948
1 changed files with 59 additions and 50 deletions
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109
assets/js/code.js
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@@ -1,10 +1,6 @@
var scriptBundle = document.getElementById("script-bundle");
var copyText =
scriptBundle && scriptBundle.getAttribute("data-copy") ? scriptBundle.getAttribute("data-copy") : "Copy";
var copiedText =
scriptBundle && scriptBundle.getAttribute("data-copied")
? scriptBundle.getAttribute("data-copied")
: "Copied";
var copyText = scriptBundle?.getAttribute("data-copy") || "Copy";
var copiedText = scriptBundle?.getAttribute("data-copied") || "Copied";
function createCopyButton(highlightDiv) {
const button = document.createElement("button");
@@ -13,51 +9,7 @@ function createCopyButton(highlightDiv) {
button.ariaLabel = copyText;
button.innerText = copyText;
button.addEventListener("click", () => copyCodeToClipboard(button, highlightDiv));
addCopyButtonToDom(button, highlightDiv);
}
async function copyCodeToClipboard(button, highlightDiv) {
const codeToCopy = highlightDiv.querySelector(":last-child").innerText;
try {
result = await navigator.permissions.query({ name: "clipboard-write" });
if (result.state == "granted" || result.state == "prompt") {
await navigator.clipboard.writeText(codeToCopy);
} else {
copyCodeBlockExecCommand(codeToCopy, highlightDiv);
}
} catch (_) {
copyCodeBlockExecCommand(codeToCopy, highlightDiv);
} finally {
codeWasCopied(button);
}
}
function copyCodeBlockExecCommand(codeToCopy, highlightDiv) {
const textArea = document.createElement("textArea");
textArea.contentEditable = "true";
textArea.readOnly = "false";
textArea.className = "copy-textarea";
textArea.value = codeToCopy;
highlightDiv.insertBefore(textArea, highlightDiv.firstChild);
const range = document.createRange();
range.selectNodeContents(textArea);
const sel = window.getSelection();
sel.removeAllRanges();
sel.addRange(range);
textArea.setSelectionRange(0, 999999);
document.execCommand("copy");
highlightDiv.removeChild(textArea);
}
function codeWasCopied(button) {
button.blur();
button.innerText = copiedText;
setTimeout(function () {
button.innerText = copyText;
}, 2000);
}
function addCopyButtonToDom(button, highlightDiv) {
highlightDiv.insertBefore(button, highlightDiv.firstChild);
const wrapper = document.createElement("div");
wrapper.className = "highlight-wrapper";
@@ -65,6 +17,63 @@ function addCopyButtonToDom(button, highlightDiv) {
wrapper.appendChild(highlightDiv);
}
async function copyCodeToClipboard(button, highlightDiv) {
const codeToCopy = getCodeText(highlightDiv);
function fallback(codeToCopy, highlightDiv) {
const textArea = document.createElement("textArea");
textArea.contentEditable = "true";
textArea.readOnly = "false";
textArea.className = "copy-textarea";
textArea.value = codeToCopy;
highlightDiv.insertBefore(textArea, highlightDiv.firstChild);
const range = document.createRange();
range.selectNodeContents(textArea);
const sel = window.getSelection();
sel.removeAllRanges();
sel.addRange(range);
textArea.setSelectionRange(0, 999999);
document.execCommand("copy");
highlightDiv.removeChild(textArea);
}
try {
result = await navigator.permissions.query({ name: "clipboard-write" });
if (result.state == "granted" || result.state == "prompt") {
await navigator.clipboard.writeText(codeToCopy);
} else {
fallback(codeToCopy, highlightDiv);
}
} catch (_) {
fallback(codeToCopy, highlightDiv);
} finally {
button.blur();
button.innerText = copiedText;
setTimeout(function () {
button.innerText = copyText;
}, 2000);
}
}
function getCodeText(highlightDiv) {
const codeBlock = highlightDiv.querySelector("code");
const inlineLines = codeBlock?.querySelectorAll(".cl"); // linenos=inline
const tableCodeCell = highlightDiv?.querySelector(".lntable .lntd:last-child code"); // linenos=table
if (!codeBlock) return "";
if (inlineLines.length > 0) {
const cleanedLines = Array.from(inlineLines).map((line) => line.textContent.replace(/\n$/, ""));
return cleanedLines.join("\n");
}
if (tableCodeCell) {
return tableCodeCell.textContent.trim();
}
return codeBlock.textContent.trim();
}
window.addEventListener("DOMContentLoaded", (event) => {
document.querySelectorAll(".highlight").forEach((highlightDiv) => createCopyButton(highlightDiv));
});