1. 1
2. 2
3. 3
4. 4
5. 5
6. 6
7. 7
8. 8
9. 9
10. 10
11. 11
12. 12
13. 13
14. 14
15. 15
16. 16
17. 17
18. 18
19. 19
20. 20
21. 21
22. 22
23. 23
24. 24
25. 25
26. 26
27. 27
28. 28
29. 29
30. 30
31. 31
32. 32
33. 33
34. 34
35. 35
36. 36
37. 37
38. 38
39. 39
40. 40
41. 41
42. 42
43. 43
44. 44
45. 45
46. 46
47. 47
48. 48
49. 49
50. 50
51. 51
52. 52
53. 53
54. 54
55. 55
56. 56
57. 57
58. 58
59. 59
60. 60
61. 61
62. 62
63. 63
64. 64
65. 65
66. 66
67. 67
68. 68

import {showTemporaryTooltip} from '../modules/tippy.js';

const {copy_success, copy_error} = window.config.i18n;

export async function copyToClipboard(content) {
  if (content instanceof Blob) {
    const item = new ClipboardItem({[content.type]: content});
    await navigator.clipboard.write([item]);
  } else { // text
    try {
      await navigator.clipboard.writeText(content);
    } catch {
      return fallbackCopyToClipboard(content);
    }
  }
  return true;
}

// Fallback to use if navigator.clipboard doesn't exist. Achieved via creating
// a temporary textarea element, selecting the text, and using document.execCommand
function fallbackCopyToClipboard(text) {
  if (!document.execCommand) return false;

  const tempTextArea = document.createElement('textarea');
  tempTextArea.value = text;

  // avoid scrolling
  tempTextArea.style.top = 0;
  tempTextArea.style.left = 0;
  tempTextArea.style.position = 'fixed';

  document.body.appendChild(tempTextArea);

  tempTextArea.select();

  // if unsecure (not https), there is no navigator.clipboard, but we can still
  // use document.execCommand to copy to clipboard
  const success = document.execCommand('copy');

  document.body.removeChild(tempTextArea);

  return success;
}

// For all DOM elements with [data-clipboard-target] or [data-clipboard-text],
// this copy-to-clipboard will work for them
export function initGlobalCopyToClipboardListener() {
  document.addEventListener('click', (e) => {
    let target = e.target;
    // in case <button data-clipboard-text><svg></button>, so we just search
    // up to 3 levels for performance
    for (let i = 0; i < 3 && target; i++) {
      const text = target.getAttribute('data-clipboard-text') || document.querySelector(target.getAttribute('data-clipboard-target'))?.value;

      if (text) {
        e.preventDefault();

        (async() => {
          const success = await copyToClipboard(text);
          showTemporaryTooltip(target, success ? copy_success : copy_error);
        })();

        break;
      }
      target = target.parentElement;
    }
  });
}