1 files changed, 21 insertions, 0 deletions
diff --git a/web_src/js/markup/codecopy.js b/web_src/js/markup/codecopy.js
new file mode 100644
index 0000000..078d741
--- /dev/null
+++ b/web_src/js/markup/codecopy.js
@@ -0,0 +1,21 @@
+import {svg} from '../svg.js';
+
+export function makeCodeCopyButton() {
+  const button = document.createElement('button');
+  button.classList.add('code-copy', 'ui', 'button');
+  button.innerHTML = svg('octicon-copy');
+  return button;
+}
+
+export function renderCodeCopy() {
+  const els = document.querySelectorAll('.markup .code-block code');
+  if (!els.length) return;
+
+  for (const el of els) {
+    if (!el.textContent) continue;
+    const btn = makeCodeCopyButton();
+    // remove final trailing newline introduced during HTML rendering
+    btn.setAttribute('data-clipboard-text', el.textContent.replace(/\r?\n$/, ''));
+    el.after(btn);
+  }
+}