269 lines
12 KiB
JavaScript
269 lines
12 KiB
JavaScript
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"use strict";
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
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return extendStatics(d, b);
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};
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return function (d, b) {
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if (typeof b !== "function" && b !== null)
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throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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var __assign = (this && this.__assign) || function () {
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__assign = Object.assign || function(t) {
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for (var s, i = 1, n = arguments.length; i < n; i++) {
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s = arguments[i];
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for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
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t[p] = s[p];
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}
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return t;
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};
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return __assign.apply(this, arguments);
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};
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var __values = (this && this.__values) || function(o) {
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var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
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if (m) return m.call(o);
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if (o && typeof o.length === "number") return {
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next: function () {
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if (o && i >= o.length) o = void 0;
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return { value: o && o[i++], done: !o };
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}
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};
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throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
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};
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var __read = (this && this.__read) || function (o, n) {
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var m = typeof Symbol === "function" && o[Symbol.iterator];
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if (!m) return o;
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var i = m.call(o), r, ar = [], e;
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try {
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while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
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}
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catch (error) { e = { error: error }; }
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finally {
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try {
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if (r && !r.done && (m = i["return"])) m.call(i);
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}
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finally { if (e) throw e.error; }
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}
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return ar;
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};
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var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
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if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
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if (ar || !(i in from)) {
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if (!ar) ar = Array.prototype.slice.call(from, 0, i);
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ar[i] = from[i];
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}
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}
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return to.concat(ar || Array.prototype.slice.call(from));
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};
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var __importDefault = (this && this.__importDefault) || function (mod) {
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return (mod && mod.__esModule) ? mod : { "default": mod };
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.EnrichHandler = exports.EnrichedMathDocumentMixin = exports.EnrichedMathItemMixin = void 0;
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var mathjax_js_1 = require("../mathjax.js");
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var MathItem_js_1 = require("../core/MathItem.js");
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var SerializedMmlVisitor_js_1 = require("../core/MmlTree/SerializedMmlVisitor.js");
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var Options_js_1 = require("../util/Options.js");
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var sre_js_1 = __importDefault(require("./sre.js"));
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var currentSpeech = 'none';
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(0, MathItem_js_1.newState)('ENRICHED', 30);
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(0, MathItem_js_1.newState)('ATTACHSPEECH', 155);
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function EnrichedMathItemMixin(BaseMathItem, MmlJax, toMathML) {
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return (function (_super) {
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__extends(class_1, _super);
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function class_1() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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class_1.prototype.serializeMml = function (node) {
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if ('outerHTML' in node) {
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return node.outerHTML;
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}
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if (typeof Element !== 'undefined' && typeof window !== 'undefined' && node instanceof Element) {
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var div = window.document.createElement('div');
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div.appendChild(node);
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return div.innerHTML;
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}
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return node.toString();
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};
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class_1.prototype.enrich = function (document, force) {
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if (force === void 0) { force = false; }
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if (this.state() >= MathItem_js_1.STATE.ENRICHED)
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return;
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if (!this.isEscaped && (document.options.enableEnrichment || force)) {
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if (document.options.sre.speech !== currentSpeech) {
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currentSpeech = document.options.sre.speech;
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mathjax_js_1.mathjax.retryAfter(sre_js_1.default.setupEngine(document.options.sre).then(function () { return sre_js_1.default.sreReady(); }));
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}
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var math = new document.options.MathItem('', MmlJax);
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try {
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var mml = this.inputData.originalMml = toMathML(this.root);
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math.math = this.serializeMml(sre_js_1.default.toEnriched(mml));
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math.display = this.display;
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math.compile(document);
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this.root = math.root;
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this.inputData.enrichedMml = math.math;
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}
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catch (err) {
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document.options.enrichError(document, this, err);
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}
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}
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this.state(MathItem_js_1.STATE.ENRICHED);
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};
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class_1.prototype.attachSpeech = function (document) {
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var e_1, _a;
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if (this.state() >= MathItem_js_1.STATE.ATTACHSPEECH)
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return;
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var attributes = this.root.attributes;
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var speech = (attributes.get('aria-label') ||
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this.getSpeech(this.root));
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if (speech) {
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var adaptor = document.adaptor;
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var node = this.typesetRoot;
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adaptor.setAttribute(node, 'aria-label', speech);
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try {
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for (var _b = __values(adaptor.childNodes(node)), _c = _b.next(); !_c.done; _c = _b.next()) {
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var child = _c.value;
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adaptor.setAttribute(child, 'aria-hidden', 'true');
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}
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}
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catch (e_1_1) { e_1 = { error: e_1_1 }; }
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finally {
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try {
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if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
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}
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finally { if (e_1) throw e_1.error; }
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}
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}
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this.state(MathItem_js_1.STATE.ATTACHSPEECH);
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};
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class_1.prototype.getSpeech = function (node) {
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var e_2, _a;
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var attributes = node.attributes;
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if (!attributes)
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return '';
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var speech = attributes.getExplicit('data-semantic-speech');
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if (!attributes.getExplicit('data-semantic-parent') && speech) {
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return speech;
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}
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try {
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for (var _b = __values(node.childNodes), _c = _b.next(); !_c.done; _c = _b.next()) {
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var child = _c.value;
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var value = this.getSpeech(child);
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if (value != null) {
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return value;
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}
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}
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}
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catch (e_2_1) { e_2 = { error: e_2_1 }; }
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finally {
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try {
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if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
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}
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finally { if (e_2) throw e_2.error; }
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}
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return '';
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};
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return class_1;
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}(BaseMathItem));
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}
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exports.EnrichedMathItemMixin = EnrichedMathItemMixin;
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function EnrichedMathDocumentMixin(BaseDocument, MmlJax) {
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var _a;
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return _a = (function (_super) {
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__extends(class_2, _super);
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function class_2() {
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var args = [];
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for (var _i = 0; _i < arguments.length; _i++) {
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args[_i] = arguments[_i];
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}
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var _this = _super.apply(this, __spreadArray([], __read(args), false)) || this;
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MmlJax.setMmlFactory(_this.mmlFactory);
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var ProcessBits = _this.constructor.ProcessBits;
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if (!ProcessBits.has('enriched')) {
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ProcessBits.allocate('enriched');
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ProcessBits.allocate('attach-speech');
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}
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var visitor = new SerializedMmlVisitor_js_1.SerializedMmlVisitor(_this.mmlFactory);
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var toMathML = (function (node) { return visitor.visitTree(node); });
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_this.options.MathItem =
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EnrichedMathItemMixin(_this.options.MathItem, MmlJax, toMathML);
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return _this;
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}
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class_2.prototype.attachSpeech = function () {
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var e_3, _a;
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if (!this.processed.isSet('attach-speech')) {
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try {
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for (var _b = __values(this.math), _c = _b.next(); !_c.done; _c = _b.next()) {
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var math = _c.value;
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math.attachSpeech(this);
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}
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}
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catch (e_3_1) { e_3 = { error: e_3_1 }; }
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finally {
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try {
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if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
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}
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finally { if (e_3) throw e_3.error; }
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}
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this.processed.set('attach-speech');
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}
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return this;
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};
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class_2.prototype.enrich = function () {
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var e_4, _a;
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if (!this.processed.isSet('enriched')) {
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if (this.options.enableEnrichment) {
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try {
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for (var _b = __values(this.math), _c = _b.next(); !_c.done; _c = _b.next()) {
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var math = _c.value;
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math.enrich(this);
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}
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}
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catch (e_4_1) { e_4 = { error: e_4_1 }; }
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finally {
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try {
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if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
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}
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finally { if (e_4) throw e_4.error; }
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}
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}
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this.processed.set('enriched');
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}
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return this;
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};
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class_2.prototype.enrichError = function (_doc, _math, err) {
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console.warn('Enrichment error:', err);
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};
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class_2.prototype.state = function (state, restore) {
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if (restore === void 0) { restore = false; }
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_super.prototype.state.call(this, state, restore);
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if (state < MathItem_js_1.STATE.ENRICHED) {
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this.processed.clear('enriched');
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}
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return this;
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};
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return class_2;
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}(BaseDocument)),
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_a.OPTIONS = __assign(__assign({}, BaseDocument.OPTIONS), { enableEnrichment: true, enrichError: function (doc, math, err) { return doc.enrichError(doc, math, err); }, renderActions: (0, Options_js_1.expandable)(__assign(__assign({}, BaseDocument.OPTIONS.renderActions), { enrich: [MathItem_js_1.STATE.ENRICHED], attachSpeech: [MathItem_js_1.STATE.ATTACHSPEECH] })), sre: (0, Options_js_1.expandable)({
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speech: 'none',
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domain: 'mathspeak',
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style: 'default',
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locale: 'en'
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}) }),
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_a;
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}
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exports.EnrichedMathDocumentMixin = EnrichedMathDocumentMixin;
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function EnrichHandler(handler, MmlJax) {
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MmlJax.setAdaptor(handler.adaptor);
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handler.documentClass =
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EnrichedMathDocumentMixin(handler.documentClass, MmlJax);
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return handler;
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}
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exports.EnrichHandler = EnrichHandler;
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//# sourceMappingURL=semantic-enrich.js.map
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