usePreviewItems.js 3.2 KB

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  1. "use strict";
  2. var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
  3. var _typeof = require("@babel/runtime/helpers/typeof");
  4. Object.defineProperty(exports, "__esModule", {
  5. value: true
  6. });
  7. exports.default = usePreviewItems;
  8. var _toConsumableArray2 = _interopRequireDefault(require("@babel/runtime/helpers/toConsumableArray"));
  9. var _defineProperty2 = _interopRequireDefault(require("@babel/runtime/helpers/defineProperty"));
  10. var _objectSpread3 = _interopRequireDefault(require("@babel/runtime/helpers/objectSpread2"));
  11. var _slicedToArray2 = _interopRequireDefault(require("@babel/runtime/helpers/slicedToArray"));
  12. var React = _interopRequireWildcard(require("react"));
  13. var _common = require("../common");
  14. function _getRequireWildcardCache(e) { if ("function" != typeof WeakMap) return null; var r = new WeakMap(), t = new WeakMap(); return (_getRequireWildcardCache = function _getRequireWildcardCache(e) { return e ? t : r; })(e); }
  15. function _interopRequireWildcard(e, r) { if (!r && e && e.__esModule) return e; if (null === e || "object" != _typeof(e) && "function" != typeof e) return { default: e }; var t = _getRequireWildcardCache(r); if (t && t.has(e)) return t.get(e); var n = { __proto__: null }, a = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var u in e) if ("default" !== u && Object.prototype.hasOwnProperty.call(e, u)) { var i = a ? Object.getOwnPropertyDescriptor(e, u) : null; i && (i.get || i.set) ? Object.defineProperty(n, u, i) : n[u] = e[u]; } return n.default = e, t && t.set(e, n), n; }
  16. /**
  17. * Merge props provided `items` or context collected images
  18. */
  19. function usePreviewItems(items) {
  20. // Context collection image data
  21. var _React$useState = React.useState({}),
  22. _React$useState2 = (0, _slicedToArray2.default)(_React$useState, 2),
  23. images = _React$useState2[0],
  24. setImages = _React$useState2[1];
  25. var registerImage = React.useCallback(function (id, data) {
  26. setImages(function (imgs) {
  27. return (0, _objectSpread3.default)((0, _objectSpread3.default)({}, imgs), {}, (0, _defineProperty2.default)({}, id, data));
  28. });
  29. return function () {
  30. setImages(function (imgs) {
  31. var cloneImgs = (0, _objectSpread3.default)({}, imgs);
  32. delete cloneImgs[id];
  33. return cloneImgs;
  34. });
  35. };
  36. }, []);
  37. // items
  38. var mergedItems = React.useMemo(function () {
  39. // use `items` first
  40. if (items) {
  41. return items.map(function (item) {
  42. if (typeof item === 'string') {
  43. return {
  44. data: {
  45. src: item
  46. }
  47. };
  48. }
  49. var data = {};
  50. Object.keys(item).forEach(function (key) {
  51. if (['src'].concat((0, _toConsumableArray2.default)(_common.COMMON_PROPS)).includes(key)) {
  52. data[key] = item[key];
  53. }
  54. });
  55. return {
  56. data: data
  57. };
  58. });
  59. }
  60. // use registered images secondly
  61. return Object.keys(images).reduce(function (total, id) {
  62. var _images$id = images[id],
  63. canPreview = _images$id.canPreview,
  64. data = _images$id.data;
  65. if (canPreview) {
  66. total.push({
  67. data: data,
  68. id: id
  69. });
  70. }
  71. return total;
  72. }, []);
  73. }, [items, images]);
  74. return [mergedItems, registerImage, !!items];
  75. }