EVOLUTION-MANAGER

Edit File: raw-tool-math.js

/* Licensed under the Apache License, Version 2.0 (the "License") http://www.apache.org/licenses/LICENSE-2.0 */
var StaticTMath = (function() {
	function tex2svg(tex, callback, _errCallback) {
		const errCallback = _errCallback || function() {};
		let error = false;
		const wrapper = $('<div>').html('\\[' + tex + '\\]');
		MathJax.Hub.Register.MessageHook('TeX Jax - parse error', function(message) {
			errCallback(message[1]);
			error = true;
		});
		MathJax.Hub.Register.MessageHook('Math Processing Error', function(message) {
			errCallback(message[2]);
			error = true;
		});
		MathJax.Hub.Queue(['Typeset', MathJax.Hub, wrapper[0]]);
		MathJax.Hub.Queue(function() {
			if (!error) {
				const mjOut = wrapper[0].getElementsByTagName('svg')[0];
				callback(mjOut);
			}
		});
	}
	function create(o, canvas, callback, errCallback) {
		tex2svg(o.formula, function(svg) {
			fabric.parseSVGDocument(svg, function(objects, options) {
				const opts = $.extend({}, o, options)
					, obj = objects.length === 1
						? new fabric.Group(objects, opts)
						: fabric.util.groupSVGElements(objects, opts);
				obj.selectable = canvas.selection;
				obj.type = 'group';
				if (typeof(callback) === 'function') {
					callback(obj);
				}
				canvas.add(obj).requestRenderAll();
			});
		}, errCallback);
	}
	function highlight(el) {
		el.addClass('ui-state-highlight', 2000, function() {
			el.focus();
			el.removeClass('ui-state-highlight', 2000);
		});
	}

return {
		tex2svg: tex2svg
		, create: create
		, highlight: highlight
	}
})();
var TMath = function(wb, s, sBtn) {
	const math = ShapeBase();
	math.obj = null;

return math;
};