406 lines
16 KiB
JavaScript
406 lines
16 KiB
JavaScript
var svgEditorExtension_mathjax = (function () {
|
|
'use strict';
|
|
|
|
var asyncToGenerator = function (fn) {
|
|
return function () {
|
|
var gen = fn.apply(this, arguments);
|
|
return new Promise(function (resolve, reject) {
|
|
function step(key, arg) {
|
|
try {
|
|
var info = gen[key](arg);
|
|
var value = info.value;
|
|
} catch (error) {
|
|
reject(error);
|
|
return;
|
|
}
|
|
|
|
if (info.done) {
|
|
resolve(value);
|
|
} else {
|
|
return Promise.resolve(value).then(function (value) {
|
|
step("next", value);
|
|
}, function (err) {
|
|
step("throw", err);
|
|
});
|
|
}
|
|
}
|
|
|
|
return step("next");
|
|
});
|
|
};
|
|
};
|
|
|
|
var _extends = Object.assign || function (target) {
|
|
for (var i = 1; i < arguments.length; i++) {
|
|
var source = arguments[i];
|
|
|
|
for (var key in source) {
|
|
if (Object.prototype.hasOwnProperty.call(source, key)) {
|
|
target[key] = source[key];
|
|
}
|
|
}
|
|
}
|
|
|
|
return target;
|
|
};
|
|
|
|
// MIT License
|
|
// From: https://github.com/uupaa/dynamic-import-polyfill/blob/master/importModule.js
|
|
|
|
function toAbsoluteURL(url) {
|
|
var a = document.createElement('a');
|
|
a.setAttribute('href', url); // <a href="hoge.html">
|
|
return a.cloneNode(false).href; // -> "http://example.com/hoge.html"
|
|
}
|
|
|
|
function addScriptAtts(script, atts) {
|
|
['id', 'class', 'type'].forEach(function (prop) {
|
|
if (prop in atts) {
|
|
script[prop] = atts[prop];
|
|
}
|
|
});
|
|
}
|
|
|
|
// Additions by Brett
|
|
var importSetGlobalDefault = function () {
|
|
var _ref = asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee(url, config) {
|
|
return regeneratorRuntime.wrap(function _callee$(_context) {
|
|
while (1) {
|
|
switch (_context.prev = _context.next) {
|
|
case 0:
|
|
return _context.abrupt('return', importSetGlobal(url, _extends({}, config, { returnDefault: true })));
|
|
|
|
case 1:
|
|
case 'end':
|
|
return _context.stop();
|
|
}
|
|
}
|
|
}, _callee, this);
|
|
}));
|
|
|
|
return function importSetGlobalDefault(_x, _x2) {
|
|
return _ref.apply(this, arguments);
|
|
};
|
|
}();
|
|
var importSetGlobal = function () {
|
|
var _ref3 = asyncToGenerator( /*#__PURE__*/regeneratorRuntime.mark(function _callee2(url, _ref2) {
|
|
var global = _ref2.global,
|
|
returnDefault = _ref2.returnDefault;
|
|
var modularVersion;
|
|
return regeneratorRuntime.wrap(function _callee2$(_context2) {
|
|
while (1) {
|
|
switch (_context2.prev = _context2.next) {
|
|
case 0:
|
|
// Todo: Replace calls to this function with `import()` when supported
|
|
modularVersion = !('svgEditor' in window) || !window.svgEditor || window.svgEditor.modules !== false;
|
|
|
|
if (!modularVersion) {
|
|
_context2.next = 3;
|
|
break;
|
|
}
|
|
|
|
return _context2.abrupt('return', importModule(url, undefined, { returnDefault: returnDefault }));
|
|
|
|
case 3:
|
|
_context2.next = 5;
|
|
return importScript(url);
|
|
|
|
case 5:
|
|
return _context2.abrupt('return', window[global]);
|
|
|
|
case 6:
|
|
case 'end':
|
|
return _context2.stop();
|
|
}
|
|
}
|
|
}, _callee2, this);
|
|
}));
|
|
|
|
return function importSetGlobal(_x3, _x4) {
|
|
return _ref3.apply(this, arguments);
|
|
};
|
|
}();
|
|
// Addition by Brett
|
|
function importScript(url) {
|
|
var atts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
|
|
|
|
if (Array.isArray(url)) {
|
|
return Promise.all(url.map(function (u) {
|
|
return importScript(u, atts);
|
|
}));
|
|
}
|
|
return new Promise(function (resolve, reject) {
|
|
var script = document.createElement('script');
|
|
var destructor = function destructor() {
|
|
script.onerror = null;
|
|
script.onload = null;
|
|
script.remove();
|
|
script.src = '';
|
|
};
|
|
script.defer = 'defer';
|
|
addScriptAtts(script, atts);
|
|
script.onerror = function () {
|
|
reject(new Error('Failed to import: ' + url));
|
|
destructor();
|
|
};
|
|
script.onload = function () {
|
|
resolve();
|
|
destructor();
|
|
};
|
|
script.src = url;
|
|
|
|
document.head.append(script);
|
|
});
|
|
}
|
|
|
|
function importModule(url) {
|
|
var atts = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
|
|
|
|
var _ref4 = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {},
|
|
_ref4$returnDefault = _ref4.returnDefault,
|
|
returnDefault = _ref4$returnDefault === undefined ? false : _ref4$returnDefault;
|
|
|
|
if (Array.isArray(url)) {
|
|
return Promise.all(url.map(function (u) {
|
|
return importModule(u, atts);
|
|
}));
|
|
}
|
|
return new Promise(function (resolve, reject) {
|
|
var vector = '$importModule$' + Math.random().toString(32).slice(2);
|
|
var script = document.createElement('script');
|
|
var destructor = function destructor() {
|
|
delete window[vector];
|
|
script.onerror = null;
|
|
script.onload = null;
|
|
script.remove();
|
|
URL.revokeObjectURL(script.src);
|
|
script.src = '';
|
|
};
|
|
addScriptAtts(script, atts);
|
|
script.defer = 'defer';
|
|
script.type = 'module';
|
|
script.onerror = function () {
|
|
reject(new Error('Failed to import: ' + url));
|
|
destructor();
|
|
};
|
|
script.onload = function () {
|
|
resolve(window[vector]);
|
|
destructor();
|
|
};
|
|
var absURL = toAbsoluteURL(url);
|
|
var loader = 'import * as m from \'' + absURL.replace(/'/g, "\\'") + '\'; window.' + vector + ' = ' + (returnDefault ? 'm.default || ' : '') + 'm;'; // export Module
|
|
var blob = new Blob([loader], { type: 'text/javascript' });
|
|
script.src = URL.createObjectURL(blob);
|
|
|
|
document.head.append(script);
|
|
});
|
|
}
|
|
|
|
/* globals jQuery, MathJax */
|
|
|
|
var extMathjax = {
|
|
name: 'mathjax',
|
|
init: function init() {
|
|
var svgEditor = this;
|
|
var $ = jQuery;
|
|
var svgCanvas = svgEditor.canvas;
|
|
|
|
// Configuration of the MathJax extention.
|
|
|
|
// This will be added to the head tag before MathJax is loaded.
|
|
/* mathjaxConfiguration = `<script type="text/x-mathjax-config">
|
|
MathJax.Hub.Config({
|
|
extensions: ['tex2jax.js'],
|
|
jax: ['input/TeX', 'output/SVG'],
|
|
showProcessingMessages: true,
|
|
showMathMenu: false,
|
|
showMathMenuMSIE: false,
|
|
errorSettings: {
|
|
message: ['[Math Processing Error]'],
|
|
style: {color: '#CC0000', 'font-style': 'italic'}
|
|
},
|
|
elements: [],
|
|
tex2jax: {
|
|
ignoreClass: 'tex2jax_ignore2', processClass: 'tex2jax_process2',
|
|
},
|
|
TeX: {
|
|
extensions: ['AMSmath.js', 'AMSsymbols.js', 'noErrors.js', 'noUndefined.js']
|
|
},
|
|
SVG: {
|
|
}
|
|
});
|
|
</script>`, */
|
|
// mathjaxSrc = 'http://cdn.mathjax.org/mathjax/latest/MathJax.js',
|
|
// Had been on https://c328740.ssl.cf1.rackcdn.com/mathjax/latest/MathJax.js?config=TeX-AMS-MML_SVG.js
|
|
// Obtained Text-AMS-MML_SVG.js from https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.3/config/TeX-AMS-MML_SVG.js
|
|
var mathjaxSrcSecure = 'mathjax/MathJax.js?config=TeX-AMS-MML_SVG.js',
|
|
uiStrings = svgEditor.uiStrings;
|
|
|
|
var math = void 0,
|
|
locationX = void 0,
|
|
locationY = void 0,
|
|
mathjaxLoaded = false;
|
|
|
|
// TODO: Implement language support. Move these uiStrings to the locale files and the code to the langReady callback.
|
|
$.extend(uiStrings, {
|
|
mathjax: {
|
|
embed_svg: 'Save as mathematics',
|
|
embed_mathml: 'Save as figure',
|
|
svg_save_warning: 'The math will be transformed into a figure is manipulatable like everything else. You will not be able to manipulate the TeX-code anymore. ',
|
|
mathml_save_warning: 'Advised. The math will be saved as a figure.',
|
|
title: 'Mathematics code editor'
|
|
}
|
|
});
|
|
|
|
function saveMath() {
|
|
var code = $('#mathjax_code_textarea').val();
|
|
// displaystyle to force MathJax NOT to use the inline style. Because it is
|
|
// less fancy!
|
|
MathJax.Hub.queue.Push(['Text', math, '\\displaystyle{' + code + '}']);
|
|
|
|
/*
|
|
* The MathJax library doesn't want to bloat your webpage so it creates
|
|
* every symbol (glymph) you need only once. These are saved in a <svg> on
|
|
* the top of your html document, just under the body tag. Each glymph has
|
|
* its unique id and is saved as a <path> in the <defs> tag of the <svg>
|
|
*
|
|
* Then when the symbols are needed in the rest of your html document they
|
|
* are refferd to by a <use> tag.
|
|
* Because of bug 1076 we can't just grab the defs tag on the top and add it
|
|
* to your formula's <svg> and copy the lot. So we have to replace each
|
|
* <use> tag by it's <path>.
|
|
*/
|
|
MathJax.Hub.queue.Push(function () {
|
|
var mathjaxMath = $('.MathJax_SVG');
|
|
var svg = $(mathjaxMath.html());
|
|
svg.find('use').each(function () {
|
|
// TODO: find a less pragmatic and more elegant solution to this.
|
|
var id = $(this).attr('href') ? $(this).attr('href').slice(1) // Works in Chrome.
|
|
: $(this).attr('xlink:href').slice(1); // Works in Firefox.
|
|
var glymph = $('#' + id).clone().removeAttr('id');
|
|
var x = $(this).attr('x');
|
|
var y = $(this).attr('y');
|
|
var transform = $(this).attr('transform');
|
|
if (transform && (x || y)) {
|
|
glymph.attr('transform', transform + ' translate(' + x + ',' + y + ')');
|
|
} else if (transform) {
|
|
glymph.attr('transform', transform);
|
|
} else if (x || y) {
|
|
glymph.attr('transform', 'translate(' + x + ',' + y + ')');
|
|
}
|
|
$(this).replaceWith(glymph);
|
|
});
|
|
// Remove the style tag because it interferes with SVG-Edit.
|
|
svg.removeAttr('style');
|
|
svg.attr('xmlns', 'http://www.w3.org/2000/svg');
|
|
svgCanvas.importSvgString($('<div>').append(svg.clone()).html(), true);
|
|
svgCanvas.ungroupSelectedElement();
|
|
// TODO: To undo the adding of the Formula you now have to undo twice.
|
|
// This should only be once!
|
|
svgCanvas.moveSelectedElements(locationX, locationY, true);
|
|
});
|
|
}
|
|
|
|
return {
|
|
name: 'MathJax',
|
|
svgicons: svgEditor.curConfig.extIconsPath + 'mathjax-icons.xml',
|
|
buttons: [{
|
|
id: 'tool_mathjax',
|
|
type: 'mode',
|
|
title: 'Add Mathematics',
|
|
events: {
|
|
click: function click() {
|
|
// Only load Mathjax when needed, we don't want to strain Svg-Edit any more.
|
|
// From this point on it is very probable that it will be needed, so load it.
|
|
if (mathjaxLoaded === false) {
|
|
$('<div id="mathjax">' + '<!-- Here is where MathJax creates the math -->' + '<div id="mathjax_creator" class="tex2jax_process" style="display:none">' + '$${}$$' + '</div>' + '<div id="mathjax_overlay"></div>' + '<div id="mathjax_container">' + '<div id="tool_mathjax_back" class="toolbar_button">' + '<button id="tool_mathjax_save">OK</button>' + '<button id="tool_mathjax_cancel">Cancel</button>' + '</div>' + '<fieldset>' + '<legend id="mathjax_legend">Mathematics Editor</legend>' + '<label>' + '<span id="mathjax_explication">Please type your mathematics in ' + '<a href="https://en.wikipedia.org/wiki/Help:Displaying_a_formula" target="_blank">TeX</a> code.</span></label>' + '<textarea id="mathjax_code_textarea" spellcheck="false"></textarea>' + '</fieldset>' + '</div>' + '</div>').insertAfter('#svg_prefs').hide();
|
|
|
|
// Make the MathEditor draggable.
|
|
$('#mathjax_container').draggable({
|
|
cancel: 'button,fieldset',
|
|
containment: 'window'
|
|
});
|
|
|
|
// Add functionality and picture to cancel button.
|
|
$('#tool_mathjax_cancel').prepend($.getSvgIcon('cancel', true)).on('click touched', function () {
|
|
$('#mathjax').hide();
|
|
});
|
|
|
|
// Add functionality and picture to the save button.
|
|
$('#tool_mathjax_save').prepend($.getSvgIcon('ok', true)).on('click touched', function () {
|
|
saveMath();
|
|
$('#mathjax').hide();
|
|
});
|
|
|
|
// MathJax preprocessing has to ignore most of the page.
|
|
$('body').addClass('tex2jax_ignore');
|
|
|
|
// Now get (and run) the MathJax Library.
|
|
// Todo: insert script with modules once widely supported
|
|
// and if MathJax (and its `TeX-AMS-MML_SVG.js` dependency) ends up
|
|
// providing an ES6 module export: https://github.com/mathjax/MathJax/issues/1998
|
|
/*
|
|
const modularVersion = !('svgEditor' in window) ||
|
|
!window.svgEditor ||
|
|
window.svgEditor.modules !== false;
|
|
// Add as second argument to `importScript`
|
|
{
|
|
type: modularVersion
|
|
? 'module' // Make this the default when widely supported
|
|
: 'text/javascript'
|
|
}
|
|
// If only using modules, just use this:
|
|
const {default: MathJax} = await importModule( // or `import()` when widely supported
|
|
svgEditor.curConfig.extIconsPath + mathjaxSrcSecure
|
|
);
|
|
*/
|
|
importScript(svgEditor.curConfig.extIconsPath + mathjaxSrcSecure).then(function () {
|
|
// When MathJax is loaded get the div where the math will be rendered.
|
|
MathJax.Hub.queue.Push(function () {
|
|
math = MathJax.Hub.getAllJax('#mathjax_creator')[0];
|
|
console.log(math);
|
|
mathjaxLoaded = true;
|
|
console.log('MathJax Loaded');
|
|
});
|
|
}).catch(function () {
|
|
console.log('Failed loadeing MathJax.');
|
|
$.alert('Failed loading MathJax. You will not be able to change the mathematics.');
|
|
});
|
|
}
|
|
// Set the mode.
|
|
svgCanvas.setMode('mathjax');
|
|
}
|
|
}
|
|
}],
|
|
|
|
mouseDown: function mouseDown() {
|
|
if (svgCanvas.getMode() === 'mathjax') {
|
|
return { started: true };
|
|
}
|
|
},
|
|
mouseUp: function mouseUp(opts) {
|
|
if (svgCanvas.getMode() === 'mathjax') {
|
|
// Get the coordinates from your mouse.
|
|
var zoom = svgCanvas.getZoom();
|
|
// Get the actual coordinate by dividing by the zoom value
|
|
locationX = opts.mouse_x / zoom;
|
|
locationY = opts.mouse_y / zoom;
|
|
|
|
$('#mathjax').show();
|
|
return { started: false }; // Otherwise the last selected object dissapears.
|
|
}
|
|
},
|
|
callback: function callback() {
|
|
$('<style>').text('#mathjax fieldset{' + 'padding: 5px;' + 'margin: 5px;' + 'border: 1px solid #DDD;' + '}' + '#mathjax label{' + 'display: block;' + 'margin: .5em;' + '}' + '#mathjax legend {' + 'max-width:195px;' + '}' + '#mathjax_overlay {' + 'position: absolute;' + 'top: 0;' + 'left: 0;' + 'right: 0;' + 'bottom: 0;' + 'background-color: black;' + 'opacity: 0.6;' + 'z-index: 20000;' + '}' + '#mathjax_container {' + 'position: absolute;' + 'top: 50px;' + 'padding: 10px;' + 'background-color: #B0B0B0;' + 'border: 1px outset #777;' + 'opacity: 1.0;' + 'font-family: Verdana, Helvetica, sans-serif;' + 'font-size: .8em;' + 'z-index: 20001;' + '}' + '#tool_mathjax_back {' + 'margin-left: 1em;' + 'overflow: auto;' + '}' + '#mathjax_legend{' + 'font-weight: bold;' + 'font-size:1.1em;' + '}' + '#mathjax_code_textarea {\\n' + 'margin: 5px .7em;' + 'overflow: hidden;' + 'width: 416px;' + 'display: block;' + 'height: 100px;' + '}').appendTo('head');
|
|
|
|
// Add the MathJax configuration.
|
|
// $(mathjaxConfiguration).appendTo('head');
|
|
}
|
|
};
|
|
}
|
|
};
|
|
|
|
return extMathjax;
|
|
|
|
}());
|