mirror of
https://github.com/jbowdre/runtimeterror.git
synced 2024-11-10 01:52:19 +00:00
64 lines
2.5 KiB
JavaScript
64 lines
2.5 KiB
JavaScript
// adapted from https://aaronluna.dev/blog/add-copy-button-to-code-blocks-hugo-chroma/
|
|
|
|
function createCopyButton(highlightDiv) {
|
|
const button = document.createElement("button");
|
|
button.className = "copy-code-button";
|
|
button.type = "button";
|
|
button.innerText = "Copy";
|
|
button.addEventListener("click", () => copyCodeToClipboard(button, highlightDiv));
|
|
highlightDiv.insertBefore(button, highlightDiv.firstChild);
|
|
const wrapper = document.createElement("div");
|
|
wrapper.className = "highlight-wrapper";
|
|
highlightDiv.parentNode.insertBefore(wrapper, highlightDiv);
|
|
wrapper.appendChild(highlightDiv);
|
|
}
|
|
|
|
document.querySelectorAll(".highlight").forEach((highlightDiv) => createCopyButton(highlightDiv));
|
|
|
|
async function copyCodeToClipboard(button, highlightDiv) {
|
|
// capture all code lines in the selected block which aren't classed `cmd_return`
|
|
let codeToCopy = highlightDiv.querySelectorAll(":last-child > .torchlight > code > .line:not(.cmd_return)");
|
|
// now remove the first-child of each line which has class `line-number`
|
|
codeToCopy = Array.from(codeToCopy).reduce((accumulator, line) => {
|
|
if (line.firstChild.className != "line-number") {
|
|
return accumulator + line.innerText + "\n"; }
|
|
else {
|
|
return accumulator + Array.from(line.children).filter(
|
|
(child) => child.className != "line-number").reduce(
|
|
(accumulator, child) => accumulator + child.innerText, "") + "\n";
|
|
}
|
|
}, "");
|
|
try {
|
|
var 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 {
|
|
button.blur();
|
|
button.innerText = "Copied!";
|
|
setTimeout(function () {
|
|
button.innerText = "Copy";
|
|
}, 2000); }
|
|
}
|
|
|
|
function copyCodeBlockExecCommand(codeToCopy, highlightDiv) {
|
|
console.log("We shouldn't get here...");
|
|
const textArea = document.createElement("textArea");
|
|
textArea.contentEditable = "true";
|
|
textArea.readOnly = "false";
|
|
textArea.className = "copyable-text-area";
|
|
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);
|
|
}
|