site/node_modules/mathjax-full/js/a11y/assistive-mml.js

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2024-10-14 06:09:33 +00:00
"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __read = (this && this.__read) || function (o, n) {
var m = typeof Symbol === "function" && o[Symbol.iterator];
if (!m) return o;
var i = m.call(o), r, ar = [], e;
try {
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
}
catch (error) { e = { error: error }; }
finally {
try {
if (r && !r.done && (m = i["return"])) m.call(i);
}
finally { if (e) throw e.error; }
}
return ar;
};
var __spreadArray = (this && this.__spreadArray) || function (to, from, pack) {
if (pack || arguments.length === 2) for (var i = 0, l = from.length, ar; i < l; i++) {
if (ar || !(i in from)) {
if (!ar) ar = Array.prototype.slice.call(from, 0, i);
ar[i] = from[i];
}
}
return to.concat(ar || Array.prototype.slice.call(from));
};
var __values = (this && this.__values) || function(o) {
var s = typeof Symbol === "function" && Symbol.iterator, m = s && o[s], i = 0;
if (m) return m.call(o);
if (o && typeof o.length === "number") return {
next: function () {
if (o && i >= o.length) o = void 0;
return { value: o && o[i++], done: !o };
}
};
throw new TypeError(s ? "Object is not iterable." : "Symbol.iterator is not defined.");
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.AssistiveMmlHandler = exports.AssistiveMmlMathDocumentMixin = exports.AssistiveMmlMathItemMixin = exports.LimitedMmlVisitor = void 0;
var MathItem_js_1 = require("../core/MathItem.js");
var SerializedMmlVisitor_js_1 = require("../core/MmlTree/SerializedMmlVisitor.js");
var Options_js_1 = require("../util/Options.js");
var LimitedMmlVisitor = (function (_super) {
__extends(LimitedMmlVisitor, _super);
function LimitedMmlVisitor() {
return _super !== null && _super.apply(this, arguments) || this;
}
LimitedMmlVisitor.prototype.getAttributes = function (node) {
return _super.prototype.getAttributes.call(this, node).replace(/ ?id=".*?"/, '');
};
return LimitedMmlVisitor;
}(SerializedMmlVisitor_js_1.SerializedMmlVisitor));
exports.LimitedMmlVisitor = LimitedMmlVisitor;
(0, MathItem_js_1.newState)('ASSISTIVEMML', 153);
function AssistiveMmlMathItemMixin(BaseMathItem) {
return (function (_super) {
__extends(class_1, _super);
function class_1() {
return _super !== null && _super.apply(this, arguments) || this;
}
class_1.prototype.assistiveMml = function (document, force) {
if (force === void 0) { force = false; }
if (this.state() >= MathItem_js_1.STATE.ASSISTIVEMML)
return;
if (!this.isEscaped && (document.options.enableAssistiveMml || force)) {
var adaptor = document.adaptor;
var mml = document.toMML(this.root).replace(/\n */g, '').replace(/<!--.*?-->/g, '');
var mmlNodes = adaptor.firstChild(adaptor.body(adaptor.parse(mml, 'text/html')));
var node = adaptor.node('mjx-assistive-mml', {
unselectable: 'on', display: (this.display ? 'block' : 'inline')
}, [mmlNodes]);
adaptor.setAttribute(adaptor.firstChild(this.typesetRoot), 'aria-hidden', 'true');
adaptor.setStyle(this.typesetRoot, 'position', 'relative');
adaptor.append(this.typesetRoot, node);
}
this.state(MathItem_js_1.STATE.ASSISTIVEMML);
};
return class_1;
}(BaseMathItem));
}
exports.AssistiveMmlMathItemMixin = AssistiveMmlMathItemMixin;
function AssistiveMmlMathDocumentMixin(BaseDocument) {
var _a;
return _a = (function (_super) {
__extends(BaseClass, _super);
function BaseClass() {
var args = [];
for (var _i = 0; _i < arguments.length; _i++) {
args[_i] = arguments[_i];
}
var _this = _super.apply(this, __spreadArray([], __read(args), false)) || this;
var CLASS = _this.constructor;
var ProcessBits = CLASS.ProcessBits;
if (!ProcessBits.has('assistive-mml')) {
ProcessBits.allocate('assistive-mml');
}
_this.visitor = new LimitedMmlVisitor(_this.mmlFactory);
_this.options.MathItem =
AssistiveMmlMathItemMixin(_this.options.MathItem);
if ('addStyles' in _this) {
_this.addStyles(CLASS.assistiveStyles);
}
return _this;
}
BaseClass.prototype.toMML = function (node) {
return this.visitor.visitTree(node);
};
BaseClass.prototype.assistiveMml = function () {
var e_1, _a;
if (!this.processed.isSet('assistive-mml')) {
try {
for (var _b = __values(this.math), _c = _b.next(); !_c.done; _c = _b.next()) {
var math = _c.value;
math.assistiveMml(this);
}
}
catch (e_1_1) { e_1 = { error: e_1_1 }; }
finally {
try {
if (_c && !_c.done && (_a = _b.return)) _a.call(_b);
}
finally { if (e_1) throw e_1.error; }
}
this.processed.set('assistive-mml');
}
return this;
};
BaseClass.prototype.state = function (state, restore) {
if (restore === void 0) { restore = false; }
_super.prototype.state.call(this, state, restore);
if (state < MathItem_js_1.STATE.ASSISTIVEMML) {
this.processed.clear('assistive-mml');
}
return this;
};
return BaseClass;
}(BaseDocument)),
_a.OPTIONS = __assign(__assign({}, BaseDocument.OPTIONS), { enableAssistiveMml: true, renderActions: (0, Options_js_1.expandable)(__assign(__assign({}, BaseDocument.OPTIONS.renderActions), { assistiveMml: [MathItem_js_1.STATE.ASSISTIVEMML] })) }),
_a.assistiveStyles = {
'mjx-assistive-mml': {
position: 'absolute !important',
top: '0px', left: '0px',
clip: 'rect(1px, 1px, 1px, 1px)',
padding: '1px 0px 0px 0px !important',
border: '0px !important',
display: 'block !important',
width: 'auto !important',
overflow: 'hidden !important',
'-webkit-touch-callout': 'none',
'-webkit-user-select': 'none',
'-khtml-user-select': 'none',
'-moz-user-select': 'none',
'-ms-user-select': 'none',
'user-select': 'none'
},
'mjx-assistive-mml[display="block"]': {
width: '100% !important'
}
},
_a;
}
exports.AssistiveMmlMathDocumentMixin = AssistiveMmlMathDocumentMixin;
function AssistiveMmlHandler(handler) {
handler.documentClass =
AssistiveMmlMathDocumentMixin(handler.documentClass);
return handler;
}
exports.AssistiveMmlHandler = AssistiveMmlHandler;
//# sourceMappingURL=assistive-mml.js.map