HackMD/public/js/pretty.js

require('../css/extra.css');
require('../css/slide-preview.css');
require('../css/site.css');

require('highlight.js/styles/github-gist.css');

import {
    autoLinkify,
    deduplicatedHeaderId,
    finishView,
    generateToc,
    md,
    parseMeta,
    postProcess,
    renderTOC,
    scrollToHash,
    smoothHashScroll,
    updateLastChange
} from './extra';

import { preventXSS } from './render';

const markdown = $("#doc.markdown-body");
const text = markdown.text();
const lastMeta = md.meta;
md.meta = {};
delete md.metaError;
let rendered = md.render(text);
if (md.meta.type && md.meta.type === 'slide') {
    const slideOptions = {
        separator: '^(\r\n?|\n)---(\r\n?|\n)$',
        verticalSeparator: '^(\r\n?|\n)----(\r\n?|\n)$'
    };
    const slides = RevealMarkdown.slidify(text, slideOptions);
    markdown.html(slides);
    RevealMarkdown.initialize();
    // prevent XSS
    markdown.html(preventXSS(markdown.html()));
    markdown.addClass('slides');
} else {
    if (lastMeta.type && lastMeta.type === 'slide') {
        refreshView();
        markdown.removeClass('slides');
    }
    // only render again when meta changed
    if (JSON.stringify(md.meta) != JSON.stringify(lastMeta)) {
        parseMeta(md, null, markdown, $('#ui-toc'), $('#ui-toc-affix'));
        rendered = md.render(text);
    }
    // prevent XSS
    rendered = preventXSS(rendered);
    const result = postProcess(rendered);
    markdown.html(result.html());
}
$(document.body).show();

finishView(markdown);
autoLinkify(markdown);
deduplicatedHeaderId(markdown);
renderTOC(markdown);
generateToc('ui-toc');
generateToc('ui-toc-affix');
smoothHashScroll();
createtime = lastchangeui.time.attr('data-createtime');
lastchangetime = lastchangeui.time.attr('data-updatetime');
updateLastChange();

const url = window.location.pathname;
$('.ui-edit').attr('href', `${url}/edit`);
const toc = $('.ui-toc');
const tocAffix = $('.ui-affix-toc');
const tocDropdown = $('.ui-toc-dropdown');
//toc
tocDropdown.click(e => {
    e.stopPropagation();
});

let enoughForAffixToc = true;

function generateScrollspy() {
    $(document.body).scrollspy({
        target: ''
    });
    $(document.body).scrollspy('refresh');
    if (enoughForAffixToc) {
        toc.hide();
        tocAffix.show();
    } else {
        tocAffix.hide();
        toc.show();
    }
    $(document.body).scroll();
}

function windowResize() {
    //toc right
    const paddingRight = parseFloat(markdown.css('padding-right'));
    const right = ($(window).width() - (markdown.offset().left + markdown.outerWidth() - paddingRight));
    toc.css('right', `${right}px`);
    //affix toc left
    let newbool;
    const rightMargin = (markdown.parent().outerWidth() - markdown.outerWidth()) / 2;
    //for ipad or wider device
    if (rightMargin >= 133) {
        newbool = true;
        const affixLeftMargin = (tocAffix.outerWidth() - tocAffix.width()) / 2;
        const left = markdown.offset().left + markdown.outerWidth() - affixLeftMargin;
        tocAffix.css('left', `${left}px`);
    } else {
        newbool = false;
    }
    if (newbool != enoughForAffixToc) {
        enoughForAffixToc = newbool;
        generateScrollspy();
    }
}
$(window).resize(() => {
    windowResize();
});
$(document).ready(() => {
    windowResize();
    generateScrollspy();
    setTimeout(scrollToHash, 0);
    //tooltip
    $('[data-toggle="tooltip"]').tooltip();
});

export function scrollToTop() {
    $('body, html').stop(true, true).animate({
        scrollTop: 0
    }, 100, "linear");
}

export function scrollToBottom() {
    $('body, html').stop(true, true).animate({
        scrollTop: $(document.body)[0].scrollHeight
    }, 100, "linear");
}

window.scrollToTop = scrollToTop;
window.scrollToBottom = scrollToBottom;