123 lines
5.0 KiB
JavaScript
123 lines
5.0 KiB
JavaScript
define([
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"underscore",
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"extensions/markdownExtra",
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"extensions/mathJax",
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"extensions/partialRendering",
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"classes/Extension",
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"crel",
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], function(_, markdownExtra, mathJax, partialRendering, Extension, crel) {
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var markdownSectionParser = new Extension("markdownSectionParser", "Markdown section parser");
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var eventMgr;
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markdownSectionParser.onEventMgrCreated = function(eventMgrParameter) {
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eventMgr = eventMgrParameter;
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};
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var sectionList = [];
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var previewContentsElt;
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// Regexp to look for section delimiters
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var regexp = '^.+[ \\t]*\\n=+[ \\t]*\\n+|^.+[ \\t]*\\n-+[ \\t]*\\n+|^\\#{1,6}[ \\t]*.+?[ \\t]*\\#*\\n+'; // Title delimiters
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markdownSectionParser.onPagedownConfigure = function(editor) {
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if(markdownExtra.enabled) {
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if(_.some(markdownExtra.config.extensions, function(extension) {
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return extension == "fenced_code_gfm";
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})) {
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regexp = '^```[^`\\n]*\\n[\\s\\S]*?\\n```|' + regexp; // Fenced block delimiters
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}
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}
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if(mathJax.enabled) {
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// Math delimiter has to follow 1 empty line to be considered as a section delimiter
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regexp = '^[ \\t]*\\n\\$\\$[\\s\\S]*?\\$\\$|' + regexp; // $$ math block delimiters
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regexp = '^[ \\t]*\\n\\\\\\\\[[\\s\\S]*?\\\\\\\\]|' + regexp; // \\[ \\] math block delimiters
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regexp = '^[ \\t]*\\n\\\\?\\\\begin\\{[a-z]*\\*?\\}[\\s\\S]*?\\\\end\\{[a-z]*\\*?\\}|' + regexp; // \\begin{...} \\end{...} math block delimiters
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}
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regexp = new RegExp(regexp, 'gm');
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var converter = editor.getConverter();
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if(!partialRendering.enabled) {
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converter.hooks.chain("preConversion", function() {
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return _.reduce(sectionList, function(result, section) {
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return result + '\n<div class="se-preview-section-delimiter"></div>\n\n' + section.text + '\n\n';
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}, '');
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});
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editor.hooks.chain("onPreviewRefresh", function() {
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var wmdPreviewElt = document.getElementById("wmd-preview");
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var childNode = wmdPreviewElt.firstChild;
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function createSectionElt() {
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var sectionElt = crel('div', {
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class: 'wmd-preview-section preview-content'
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});
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var isNextDelimiter = false;
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while (childNode) {
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var nextNode = childNode.nextSibling;
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var isDelimiter = childNode.className == 'se-preview-section-delimiter';
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if(isNextDelimiter === true && childNode.tagName == 'DIV' && isDelimiter) {
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// Stop when encountered the next delimiter
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break;
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}
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isNextDelimiter = true;
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isDelimiter || sectionElt.appendChild(childNode);
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childNode = nextNode;
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}
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return sectionElt;
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}
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var newSectionEltList = document.createDocumentFragment();
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sectionList.forEach(function(section) {
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newSectionEltList.appendChild(createSectionElt(section));
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});
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previewContentsElt.innerHTML = '';
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previewContentsElt.appendChild(wmdPreviewElt);
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previewContentsElt.appendChild(newSectionEltList);
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});
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}
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};
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markdownSectionParser.onReady = function() {
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previewContentsElt = document.getElementById("preview-contents");
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};
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var fileDesc;
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markdownSectionParser.onFileSelected = function(fileDescParam) {
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fileDesc = fileDescParam;
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};
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var sectionCounter = 0;
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function parseFileContent(fileDescParam, content) {
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if(fileDescParam !== fileDesc) {
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return;
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}
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var frontMatter = (fileDesc.frontMatter || {})._frontMatter || '';
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var text = content.substring(frontMatter.length);
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var tmpText = text + "\n\n";
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function addSection(startOffset, endOffset) {
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var sectionText = tmpText.substring(offset, endOffset);
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sectionList.push({
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id: ++sectionCounter,
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text: sectionText,
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textWithFrontMatter: frontMatter + sectionText
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});
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frontMatter = '';
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}
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sectionList = [];
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var offset = 0;
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// Look for delimiters
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tmpText.replace(regexp, function(match, matchOffset) {
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// Create a new section with the text preceding the delimiter
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addSection(offset, matchOffset);
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offset = matchOffset;
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});
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// Last section
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addSection(offset, text.length);
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eventMgr.onSectionsCreated(sectionList);
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}
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markdownSectionParser.onFileOpen = parseFileContent;
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markdownSectionParser.onContentChanged = parseFileContent;
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return markdownSectionParser;
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});
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