| 1 | "use strict";
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| 2 | var __extends = (this && this.__extends) || (function () {
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| 3 | var extendStatics = function (d, b) {
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| 4 | extendStatics = Object.setPrototypeOf ||
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| 5 | ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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| 6 | function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
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| 7 | return extendStatics(d, b);
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| 8 | };
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| 9 | return function (d, b) {
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| 10 | extendStatics(d, b);
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| 11 | function __() { this.constructor = d; }
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| 12 | d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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| 13 | };
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| 14 | })();
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| 15 | var __importDefault = (this && this.__importDefault) || function (mod) {
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| 16 | return (mod && mod.__esModule) ? mod : { "default": mod };
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| 17 | };
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| 18 | Object.defineProperty(exports, "__esModule", { value: true });
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| 19 | exports.ImagePreview = void 0;
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| 20 | var react_1 = __importDefault(require("react"));
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| 21 | function tokenToURL(token) {
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| 22 | if (token.type !== 'string') {
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| 23 | return;
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| 24 | }
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| 25 | var value = token.string.slice(1).slice(0, -1).trim();
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| 26 | try {
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| 27 | var location_1 = window.location;
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| 28 | return new URL(value, location_1.protocol + '//' + location_1.host);
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| 29 | }
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| 30 | catch (err) {
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| 31 | return;
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| 32 | }
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| 33 | }
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| 34 | function isImageURL(url) {
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| 35 | return /(bmp|gif|jpeg|jpg|png|svg)$/.test(url.pathname);
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| 36 | }
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| 37 | var ImagePreview = (function (_super) {
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| 38 | __extends(ImagePreview, _super);
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| 39 | function ImagePreview() {
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| 40 | var _this = _super !== null && _super.apply(this, arguments) || this;
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| 41 | _this._node = null;
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| 42 | _this.state = {
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| 43 | width: null,
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| 44 | height: null,
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| 45 | src: null,
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| 46 | mime: null,
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| 47 | };
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| 48 | return _this;
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| 49 | }
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| 50 | ImagePreview.shouldRender = function (token) {
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| 51 | var url = tokenToURL(token);
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| 52 | return url ? isImageURL(url) : false;
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| 53 | };
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| 54 | ImagePreview.prototype.componentDidMount = function () {
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| 55 | this._updateMetadata();
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| 56 | };
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| 57 | ImagePreview.prototype.componentDidUpdate = function () {
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| 58 | this._updateMetadata();
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| 59 | };
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| 60 | ImagePreview.prototype.render = function () {
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| 61 | var _this = this;
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| 62 | var _a;
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| 63 | var dims = null;
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| 64 | if (this.state.width !== null && this.state.height !== null) {
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| 65 | var dimensions = this.state.width + 'x' + this.state.height;
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| 66 | if (this.state.mime !== null) {
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| 67 | dimensions += ' ' + this.state.mime;
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| 68 | }
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| 69 | dims = react_1.default.createElement("div", null, dimensions);
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| 70 | }
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| 71 | return (react_1.default.createElement("div", null,
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| 72 | react_1.default.createElement("img", { onLoad: function () { return _this._updateMetadata(); }, ref: function (node) {
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| 73 | _this._node = node;
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| 74 | }, src: (_a = tokenToURL(this.props.token)) === null || _a === void 0 ? void 0 : _a.href }),
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| 75 | dims));
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| 76 | };
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| 77 | ImagePreview.prototype._updateMetadata = function () {
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| 78 | var _this = this;
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| 79 | if (!this._node) {
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| 80 | return;
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| 81 | }
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| 82 | var width = this._node.naturalWidth;
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| 83 | var height = this._node.naturalHeight;
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| 84 | var src = this._node.src;
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| 85 | if (src !== this.state.src) {
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| 86 | this.setState({ src: src });
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| 87 | fetch(src, { method: 'HEAD' }).then(function (response) {
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| 88 | _this.setState({
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| 89 | mime: response.headers.get('Content-Type'),
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| 90 | });
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| 91 | });
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| 92 | }
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| 93 | if (width !== this.state.width || height !== this.state.height) {
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| 94 | this.setState({ height: height, width: width });
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| 95 | }
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| 96 | };
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| 97 | return ImagePreview;
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| 98 | }(react_1.default.Component));
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| 99 | exports.ImagePreview = ImagePreview;
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| 100 | |
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