justify-content.js 3.3 KB

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  1. 'use strict';
  2. function _defaults(obj, defaults) { var keys = Object.getOwnPropertyNames(defaults); for (var i = 0; i < keys.length; i++) { var key = keys[i]; var value = Object.getOwnPropertyDescriptor(defaults, key); if (value && value.configurable && obj[key] === undefined) { Object.defineProperty(obj, key, value); } } return obj; }
  3. function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
  4. function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
  5. function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : _defaults(subClass, superClass); }
  6. var flexSpec = require('./flex-spec');
  7. var Declaration = require('../declaration');
  8. var JustifyContent = function (_Declaration) {
  9. _inherits(JustifyContent, _Declaration);
  10. function JustifyContent() {
  11. _classCallCheck(this, JustifyContent);
  12. return _possibleConstructorReturn(this, _Declaration.apply(this, arguments));
  13. }
  14. /**
  15. * Change property name for 2009 and 2012 specs
  16. */
  17. JustifyContent.prototype.prefixed = function prefixed(prop, prefix) {
  18. var spec = void 0;
  19. var _flexSpec = flexSpec(prefix);
  20. spec = _flexSpec[0];
  21. prefix = _flexSpec[1];
  22. if (spec === 2009) {
  23. return prefix + 'box-pack';
  24. } else if (spec === 2012) {
  25. return prefix + 'flex-pack';
  26. } else {
  27. return _Declaration.prototype.prefixed.call(this, prop, prefix);
  28. }
  29. };
  30. /**
  31. * Return property name by final spec
  32. */
  33. JustifyContent.prototype.normalize = function normalize() {
  34. return 'justify-content';
  35. };
  36. /**
  37. * Change value for 2009 and 2012 specs
  38. */
  39. JustifyContent.prototype.set = function set(decl, prefix) {
  40. var spec = flexSpec(prefix)[0];
  41. if (spec === 2009 || spec === 2012) {
  42. var value = JustifyContent.oldValues[decl.value] || decl.value;
  43. decl.value = value;
  44. if (spec !== 2009 || value !== 'distribute') {
  45. return _Declaration.prototype.set.call(this, decl, prefix);
  46. }
  47. } else if (spec === 'final') {
  48. return _Declaration.prototype.set.call(this, decl, prefix);
  49. }
  50. return undefined;
  51. };
  52. return JustifyContent;
  53. }(Declaration);
  54. Object.defineProperty(JustifyContent, 'names', {
  55. enumerable: true,
  56. writable: true,
  57. value: ['justify-content', 'flex-pack', 'box-pack']
  58. });
  59. Object.defineProperty(JustifyContent, 'oldValues', {
  60. enumerable: true,
  61. writable: true,
  62. value: {
  63. 'flex-end': 'end',
  64. 'flex-start': 'start',
  65. 'space-between': 'justify',
  66. 'space-around': 'distribute'
  67. }
  68. });
  69. module.exports = JustifyContent;