@atlaskit/editor-core/dist/es5/schema/nodes/code-block.js

A package contains Atlassian editor core functionality

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var prosemirror_1 = require("../../prosemirror");
var getLanguageFromEditorStyle = function (dom) {
    return dom.dataset['language'];
};
// example of BB style:
// <div class="codehilite language-javascript"><pre><span>hello world</span><span>\n</span></pre></div>
var getLanguageFromBitbucketStyle = function (dom) {
    if (dom && dom.classList.contains('codehilite')) {
        // code block html from Bitbucket always contains an extra new line
        return extractLanguageFromClass(dom.className);
    }
};
var extractLanguageFromClass = function (className) {
    var languageRegex = /(?:^|\s)language-([^\s]+)/;
    var result = languageRegex.exec(className);
    if (result && result[1]) {
        return result[1];
    }
};
var removeLastNewLine = function (dom) {
    var parent = dom && dom.parentElement;
    if (parent && parent.classList.contains('codehilite')) {
        dom.textContent = dom.textContent.replace(/\n$/, '');
    }
    return dom;
};
exports.codeBlock = {
    attrs: { language: { default: null }, uniqueId: { default: null } },
    content: 'text*',
    group: 'block',
    code: true,
    defining: true,
    parseDOM: [{
            tag: 'pre',
            preserveWhitespace: 'full',
            getAttrs: function (dom) {
                var language = (getLanguageFromBitbucketStyle(dom.parentElement) ||
                    getLanguageFromEditorStyle(dom.parentElement) ||
                    dom.getAttribute('data-language'));
                dom = removeLastNewLine(dom);
                return { language: language };
            }
        },
        // Handle VSCode paste, it wraps copied content with
        // <div style="...white-space: pre;...">
        {
            tag: 'div[style]',
            preserveWhitespace: 'full',
            getAttrs: function (dom) {
                if (dom.style.whiteSpace === 'pre' || dom.style.whiteSpace === 'pre-wrap' ||
                    (dom.style.fontFamily && dom.style.fontFamily.toLowerCase().indexOf('monospace') > -1)) {
                    return {};
                }
                return false;
            }
        },
        // Handle GitHub/Gist paste
        {
            tag: 'table[style]',
            preserveWhitespace: 'full',
            getAttrs: function (dom) {
                if (dom.querySelector('td[class*="blob-code"]')) {
                    return {};
                }
                return false;
            }
        }],
    toDOM: function (node) {
        var className = prosemirror_1.browser.ie && prosemirror_1.browser.ie_version <= 11 ? 'ie11' : '';
        return ['pre', { 'data-language': node.attrs.language, 'class': className }, 0];
    }
};
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