1 files changed, 48 insertions, 0 deletions
diff --git a/demo/asset/script/shared.js b/demo/asset/script/shared.js
new file mode 100644
index 0000000..73ea5c2
--- /dev/null
+++ b/demo/asset/script/shared.js
@@ -0,0 +1,48 @@
+function copyTextToClipboard(text, { target = document.body } = {}) {
+  if (typeof text !== "string")
+    throw new TypeError(`Expected parameter \`text\` to be a \`string\`, got \`${typeof text}\`.`);
+
+  const element = document.createElement("textarea");
+  const previouslyFocusedElement = document.activeElement;
+  let isSuccess = false;
+
+  element.value = text;
+  element.setAttribute("readonly", "");
+  element.style.contain = "strict";
+  element.style.position = "absolute";
+  element.style.left = "-9999px";
+  element.style.fontSize = "12pt";
+
+  const selection = document.getSelection();
+  const originalRange = selection.rangeCount > 0 && selection.getRangeAt(0);
+
+  target.append(element);
+
+  element.select();
+  element.selectionStart = 0;
+  element.selectionEnd = text.length;
+
+  try {
+    isSuccess = document.execCommand("copy");
+  } catch(_) {
+    //
+  }
+
+  element.remove();
+
+  if (originalRange) {
+    selection.removeAllRanges();
+    selection.addRange(originalRange);
+  }
+
+  if (previouslyFocusedElement)
+    previouslyFocusedElement.focus();
+  return isSuccess;
+
+  /// via https://github.com/sindresorhus/copy-text-to-clipboard
+}
+
+function playAudio() {
+  const audio = document.getElementById("speak");
+  audio.play();
+}