aboutsummaryrefslogtreecommitdiff
path: root/static/codecopy.js
blob: f4d9f2bb4fafd4f8dc80d02f0aff78679932b4e6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
// https://aaronluna.dev/blog/add-copy-button-to-code-blocks-hugo-chroma/
// Further modified for Zola by Jieiku: https://github.com/Jieiku

// create copy button
function ccb(highlightDiv) {
  const button = document.createElement("button");
  button.className = "cc ";
  button.type = "button";
  button.innerHTML = "Copy";
  button.addEventListener("click", () =>
    ccc(button, highlightDiv)
  );

  // addCopyButtonToDom
  const wrapper = document.createElement("div");
  wrapper.className = "ccw";
  wrapper.appendChild(button);
  highlightDiv.parentNode.insertBefore(wrapper, highlightDiv);
  wrapper.appendChild(highlightDiv);
}

// copy code clipboard
async function ccc(button, highlightDiv) {
  //look for table, if so do it different
  const { length } = highlightDiv.querySelectorAll("table");
  let codeToCopy = "";
  if (length > 0) {
    const items = highlightDiv.querySelectorAll(":last-child > tr > td:last-child");
    items.forEach(item => {
      codeToCopy = codeToCopy + item.innerText;
      //console.log(codeToCopy);
    });
  } else {
    codeToCopy = highlightDiv.querySelector(":last-child > code").innerText;
  }
  try {
    result = await navigator.permissions.query({ name: "clipboard-write" });
    if (result.state == "granted" || result.state == "prompt") {
      await navigator.clipboard.writeText(codeToCopy);
    } else {
      cce(codeToCopy, highlightDiv);//copyCodeBlockExecCommand
    }
  } catch (_) {
    cce(codeToCopy, highlightDiv);//copyCodeBlockExecCommand
  } finally {
    //codeWasCopied
    //button.blur();
    button.innerHTML = "Copied";
    setTimeout(function () {
      button.innerHTML = "Copy";
    }, 2000);
  }
}

//copyCodeBlockExecCommand
function cce(codeToCopy, highlightDiv) {
  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);
}

document
  .querySelectorAll("pre")
  .forEach((highlightDiv) => ccb(highlightDiv));