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Use navigator.clipboard instead of deprecated document.execCommand('copy')

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ItsDrike 2022-07-25 01:06:13 +02:00
parent eb0b427a79
commit a8c8b5bc4f
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1 changed files with 19 additions and 41 deletions
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60
static/src/js/code-copy.js
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@ -1,57 +1,35 @@
(() => {
"use strict";
if (!document.queryCommandSupported("copy")) {
return;
}
function flashCopyMessage(el, msg) {
el.textContent = msg;
setTimeout(() => {
el.textContent = "Copy";
}, 1000);
setTimeout(() => { el.textContent = "Copy"; }, 1000);
}
function selectText(node) {
let selection = window.getSelection();
let range = document.createRange();
if (node.childElementCount === 2) {
// Skip the title.
range.selectNodeContents(node.children[1]);
} else {
// ignore linenumbers
let _ln = node.getElementsByClassName("chroma");
let _node = node.getElementsByTagName("pre")[1]
if (_ln.length >= 1) {
range.selectNodeContents(_node);
} else {
range.selectNodeContents(node);
}
}
selection.removeAllRanges();
selection.addRange(range);
return selection;
function handleClick(containerEl, copyBtn) {
// Find the pre element containing the source code.
// If this is a regular codeblock, there should only be 1 pre element
// If this is a hugo highlight block with linenumers, there will be 2 elements,
// where, the first will contain line numbers, and second will contain the code
let preElements = containerEl.getElementsByTagName("pre");
let preEl = preElements[preElements.length - 1]
let codeEl = preEl.firstElementChild;
let text = codeEl.textContent;
navigator.clipboard.writeText(text)
.then(() => { flashCopyMessage(copyBtn, "Copied!"); })
.catch((error) => {
console && console.log(error);
flashCopyMessage(copyBtn, "Failed :'(");
})
}
function addCopyButton(containerEl) {
let copyBtn = document.createElement("button");
copyBtn.className = "copy-button";
copyBtn.textContent = "Copy";
let codeEl = containerEl.firstElementChild;
copyBtn.addEventListener("click", () => {
try {
let selection = selectText(codeEl);
document.execCommand("copy");
selection.removeAllRanges();
flashCopyMessage(copyBtn, "Copied!");
} catch (e) {
console && console.log(e);
flashCopyMessage(copyBtn, "Failed :'(");
}
});
copyBtn.addEventListener("click", () => handleClick(containerEl, copyBtn));
containerEl.appendChild(copyBtn);
}