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
69. 69
70. 70
71. 71

import {setFileFolding} from './file-fold.js';

const {csrfToken, pageData} = window.config;
const prReview = pageData.prReview || {};
const viewedStyleClass = 'viewed-file-checked-form';
const viewedCheckboxSelector = '.viewed-file-form'; // Selector under which all "Viewed" checkbox forms can be found


// Refreshes the summary of viewed files if present
// The data used will be window.config.pageData.prReview.numberOf{Viewed}Files
function refreshViewedFilesSummary() {
  const viewedFilesMeter = document.getElementById('viewed-files-summary');
  viewedFilesMeter?.setAttribute('value', prReview.numberOfViewedFiles);
  const summaryLabel = document.getElementById('viewed-files-summary-label');
  if (summaryLabel) summaryLabel.innerHTML = summaryLabel.getAttribute('data-text-changed-template')
    .replace('%[1]d', prReview.numberOfViewedFiles)
    .replace('%[2]d', prReview.numberOfFiles);
}

// Explicitly recounts how many files the user has currently reviewed by counting the number of checked "viewed" checkboxes
// Additionally, the viewed files summary will be updated if it exists
export function countAndUpdateViewedFiles() {
  // The number of files is constant, but the number of viewed files can change because files can be loaded dynamically
  prReview.numberOfViewedFiles = document.querySelectorAll(`${viewedCheckboxSelector} > input[type=checkbox][checked]`).length;
  refreshViewedFilesSummary();
}

// Initializes a listener for all children of the given html element
// (for example 'document' in the most basic case)
// to watch for changes of viewed-file checkboxes
export function initViewedCheckboxListenerFor() {
  for (const form of document.querySelectorAll(`${viewedCheckboxSelector}:not([data-has-viewed-checkbox-listener="true"])`)) {
    // To prevent double addition of listeners
    form.setAttribute('data-has-viewed-checkbox-listener', true);

    // The checkbox consists of a div containing the real checkbox with its label and the CSRF token,
    // hence the actual checkbox first has to be found
    const checkbox = form.querySelector('input[type=checkbox]');
    checkbox.addEventListener('change', function() {
      // Mark the file as viewed visually - will especially change the background
      if (this.checked) {
        form.classList.add(viewedStyleClass);
        prReview.numberOfViewedFiles++;
      } else {
        form.classList.remove(viewedStyleClass);
        prReview.numberOfViewedFiles--;
      }

      // Update viewed-files summary and remove "has changed" label if present
      refreshViewedFilesSummary();
      const hasChangedLabel = form.parentNode.querySelector('.changed-since-last-review');
      hasChangedLabel?.parentNode.removeChild(hasChangedLabel);

      // Unfortunately, actual forms cause too many problems, hence another approach is needed
      const files = {};
      files[checkbox.getAttribute('name')] = this.checked;
      const data = {files};
      const headCommitSHA = form.getAttribute('data-headcommit');
      if (headCommitSHA) data.headCommitSHA = headCommitSHA;
      fetch(form.getAttribute('data-link'), {
        method: 'POST',
        headers: {'X-Csrf-Token': csrfToken},
        body: JSON.stringify(data),
      });

      // Fold the file accordingly
      const parentBox = form.closest('.diff-file-header');
      setFileFolding(parentBox.closest('.file-content'), parentBox.querySelector('.fold-file'), this.checked);
    });
  }
}