trilium/src/public/javascripts/services/note_content_renderer.js

import server from "./server.js";
import utils from "./utils.js";
import renderService from "./render.js";
import protectedSessionService from "./protected_session.js";
import protectedSessionHolder from "./protected_session_holder.js";

async function getRenderedContent(note) {
    const type = getRenderingType(note);

    let rendered;

    if (type === 'text') {
        const fullNote = await server.get('notes/' + note.noteId);

        const $content = $("<div>").html(fullNote.content);

        if (utils.isHtmlEmpty(fullNote.content)) {
            rendered = "";
        }
        else {
            rendered = $content;
        }
    }
    else if (type === 'code') {
        const fullNote = await server.get('notes/' + note.noteId);

        if (fullNote.content.trim() === "") {
            rendered = "";
        }

        rendered = $("<pre>").text(fullNote.content);
    }
    else if (type === 'image') {
        rendered = $("<img>").attr("src", `api/images/${note.noteId}/${note.title}`);
    }
    else if (type === 'file') {
        function getFileUrl() {
            return utils.getUrlForDownload("api/notes/" + note.noteId + "/download");
        }

        const $downloadButton = $('<button class="file-download btn btn-primary" type="button">Download</button>');
        const $openButton = $('<button class="file-open btn btn-primary" type="button">Open</button>');

        $downloadButton.on('click', () => utils.download(getFileUrl()));
        $openButton.on('click', () => {
            if (utils.isElectron()) {
                const open = require("open");

                open(getFileUrl(), {url: true});
            }
            else {
                window.location.href = getFileUrl();
            }
        });

        // open doesn't work for protected notes since it works through browser which isn't in protected session
        $openButton.toggle(!note.isProtected);

        rendered = $('<div>')
            .append($downloadButton)
            .append(' &nbsp; ')
            .append($openButton);
    }
    else if (type === 'render') {
        const $el = $('<div>');

        await renderService.render(note, $el, this.ctx);

        rendered = $el;
    }
    else if (type === 'protected-session') {
        const $button = $(`<button class="btn btn-sm"><span class="bx bx-log-in"></span> Enter protected session</button>`)
            .on('click', protectedSessionService.enterProtectedSession);

        rendered = $("<div>")
            .append("<div>This note is protected and to access it you need to enter password.</div>")
            .append("<br/>")
            .append($button);
    }
    else {
        rendered = "<em>Content of this note cannot be displayed in the book format</em>";
    }

    return {
        renderedContent: rendered,
        type
    };
}

function getRenderingType(note) {
    let type = note.type;

    if (note.isProtected) {
        if (protectedSessionHolder.isProtectedSessionAvailable()) {
            protectedSessionHolder.touchProtectedSession();
        }
        else {
            type = 'protected-session';
        }
    }

    return type;
}

export default {
    getRenderedContent
};