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comparison katex/contrib/copy-tex.js @ 8:4a25b534c81c javascript-experiment

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Add v8 engine and include katex
author Jonatan Werpers <jonatan@werpers.com>
date Wed, 17 Jun 2020 21:43:52 +0200
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7:a5aa39557726 8:4a25b534c81c
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98 /* 0 */
99 /***/ (function(module, exports, __webpack_require__) {
100
101 // extracted by mini-css-extract-plugin
102
103 /***/ }),
104 /* 1 */
105 /***/ (function(module, __webpack_exports__, __webpack_require__) {
106
107 "use strict";
108 __webpack_require__.r(__webpack_exports__);
109
110 // EXTERNAL MODULE: ./contrib/copy-tex/copy-tex.css
111 var copy_tex = __webpack_require__(0);
112
113 // CONCATENATED MODULE: ./contrib/copy-tex/katex2tex.js
114 // Set these to how you want inline and display math to be delimited.
115 var defaultCopyDelimiters = {
116 inline: ['$', '$'],
117 // alternative: ['\(', '\)']
118 display: ['$$', '$$'] // alternative: ['\[', '\]']
119
120 }; // Replace .katex elements with their TeX source (<annotation> element).
121 // Modifies fragment in-place. Useful for writing your own 'copy' handler,
122 // as in copy-tex.js.
123
124 var katexReplaceWithTex = function katexReplaceWithTex(fragment, copyDelimiters) {
125 if (copyDelimiters === void 0) {
126 copyDelimiters = defaultCopyDelimiters;
127 }
128
129 // Remove .katex-html blocks that are preceded by .katex-mathml blocks
130 // (which will get replaced below).
131 var katexHtml = fragment.querySelectorAll('.katex-mathml + .katex-html');
132
133 for (var i = 0; i < katexHtml.length; i++) {
134 var element = katexHtml[i];
135
136 if (element.remove) {
137 element.remove(null);
138 } else {
139 element.parentNode.removeChild(element);
140 }
141 } // Replace .katex-mathml elements with their annotation (TeX source)
142 // descendant, with inline delimiters.
143
144
145 var katexMathml = fragment.querySelectorAll('.katex-mathml');
146
147 for (var _i = 0; _i < katexMathml.length; _i++) {
148 var _element = katexMathml[_i];
149
150 var texSource = _element.querySelector('annotation');
151
152 if (texSource) {
153 if (_element.replaceWith) {
154 _element.replaceWith(texSource);
155 } else {
156 _element.parentNode.replaceChild(texSource, _element);
157 }
158
159 texSource.innerHTML = copyDelimiters.inline[0] + texSource.innerHTML + copyDelimiters.inline[1];
160 }
161 } // Switch display math to display delimiters.
162
163
164 var displays = fragment.querySelectorAll('.katex-display annotation');
165
166 for (var _i2 = 0; _i2 < displays.length; _i2++) {
167 var _element2 = displays[_i2];
168 _element2.innerHTML = copyDelimiters.display[0] + _element2.innerHTML.substr(copyDelimiters.inline[0].length, _element2.innerHTML.length - copyDelimiters.inline[0].length - copyDelimiters.inline[1].length) + copyDelimiters.display[1];
169 }
170
171 return fragment;
172 };
173 /* harmony default export */ var katex2tex = (katexReplaceWithTex);
174 // CONCATENATED MODULE: ./contrib/copy-tex/copy-tex.js
175 // Global copy handler to modify behavior on .katex elements.
176
177 document.addEventListener('copy', function (event) {
178 var selection = window.getSelection();
179
180 if (selection.isCollapsed) {
181 return; // default action OK if selection is empty
182 }
183
184 var fragment = selection.getRangeAt(0).cloneContents();
185
186 if (!fragment.querySelector('.katex-mathml')) {
187 return; // default action OK if no .katex-mathml elements
188 } // Preserve usual HTML copy/paste behavior.
189
190
191 var html = [];
192
193 for (var i = 0; i < fragment.childNodes.length; i++) {
194 html.push(fragment.childNodes[i].outerHTML);
195 }
196
197 event.clipboardData.setData('text/html', html.join('')); // Rewrite plain-text version.
198
199 event.clipboardData.setData('text/plain', katex2tex(fragment).textContent); // Prevent normal copy handling.
200
201 event.preventDefault();
202 });
203 // CONCATENATED MODULE: ./contrib/copy-tex/copy-tex.webpack.js
204 /**
205 * This is the webpack entry point for KaTeX. As ECMAScript doesn't support
206 * CSS modules natively, a separate entry point is used.
207 */
208
209
210
211 /***/ })
212 /******/ ])["default"];
213 });