utils.js 2.5 KB

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  1. import {Buffer} from 'safe-buffer';
  2. //import _ from 'lodash';
  3. export function sleep(ms) {
  4. return new Promise(resolve => setTimeout(resolve, ms));
  5. }
  6. export function toHex(buf) {
  7. return Buffer.from(buf).toString('hex');
  8. }
  9. export function keyEventToCode(event) {
  10. let result = [];
  11. let code = event.code;
  12. const modCode = code.substring(0, 3);
  13. if (event.metaKey && modCode != 'Met')
  14. result.push('Meta');
  15. if (event.ctrlKey && modCode != 'Con')
  16. result.push('Ctrl');
  17. if (event.shiftKey && modCode != 'Shi')
  18. result.push('Shift');
  19. if (event.altKey && modCode != 'Alt')
  20. result.push('Alt');
  21. if (modCode == 'Dig') {
  22. code = code.substring(5, 6);
  23. } else if (modCode == 'Key') {
  24. code = code.substring(3, 4);
  25. }
  26. result.push(code);
  27. return result.join('+');
  28. }
  29. export function wordEnding(num, type = 0) {
  30. const endings = [
  31. ['ов', '', 'а', 'а', 'а', 'ов', 'ов', 'ов', 'ов', 'ов'],
  32. ['й', 'я', 'и', 'и', 'и', 'й', 'й', 'й', 'й', 'й'],
  33. ['о', '', 'о', 'о', 'о', 'о', 'о', 'о', 'о', 'о'],
  34. ['ий', 'ие', 'ия', 'ия', 'ия', 'ий', 'ий', 'ий', 'ий', 'ий']
  35. ];
  36. const deci = num % 100;
  37. if (deci > 10 && deci < 20) {
  38. return endings[type][0];
  39. } else {
  40. return endings[type][num % 10];
  41. }
  42. }
  43. export function fallbackCopyTextToClipboard(text) {
  44. let textArea = document.createElement('textarea');
  45. textArea.value = text;
  46. document.body.appendChild(textArea);
  47. textArea.focus();
  48. textArea.select();
  49. let result = false;
  50. try {
  51. result = document.execCommand('copy');
  52. } catch (e) {
  53. console.error(e);
  54. }
  55. document.body.removeChild(textArea);
  56. return result;
  57. }
  58. export async function copyTextToClipboard(text) {
  59. if (!navigator.clipboard) {
  60. return fallbackCopyTextToClipboard(text);
  61. }
  62. let result = false;
  63. try {
  64. await navigator.clipboard.writeText(text);
  65. result = true;
  66. } catch (e) {
  67. console.error(e);
  68. }
  69. return result;
  70. }
  71. export function makeValidFilename(filename, repl = '_') {
  72. let f = filename.replace(/[\x00\\/:*"<>|]/g, repl); // eslint-disable-line no-control-regex
  73. f = f.trim();
  74. while (f.length && (f[f.length - 1] == '.' || f[f.length - 1] == '_')) {
  75. f = f.substring(0, f.length - 1);
  76. }
  77. if (f)
  78. return f;
  79. else
  80. throw new Error('Invalid filename');
  81. }