Refactored markdown editor logic

Split out the markdown editor logic into seperate components to provide
a more orgranised heirachy with feature-specific files.

resources/js/markdown/actions.js

@@ -0,0 +1,410 @@
+import DrawIO from "../services/drawio";
+
+export class Actions {
+    /**
+     * @param {MarkdownEditor} editor
+     */
+    constructor(editor) {
+        this.editor = editor;
+    }
+
+    updateAndRender() {
+        const content = this.editor.cm.getValue();
+        this.editor.config.inputEl.value = content;
+
+        const html = this.editor.markdown.render(content);
+        window.$events.emit('editor-html-change', html);
+        window.$events.emit('editor-markdown-change', content);
+        this.editor.display.patchWithHtml(html);
+    }
+
+    insertImage() {
+        const cursorPos = this.editor.cm.getCursor('from');
+        /** @type {ImageManager} **/
+        const imageManager = window.$components.first('image-manager');
+        imageManager.show(image => {
+            const imageUrl = image.thumbs.display || image.url;
+            let selectedText = this.editor.cm.getSelection();
+            let newText = "[![" + (selectedText || image.name) + "](" + imageUrl + ")](" + image.url + ")";
+            this.editor.cm.focus();
+            this.editor.cm.replaceSelection(newText);
+            this.editor.cm.setCursor(cursorPos.line, cursorPos.ch + newText.length);
+        }, 'gallery');
+    }
+
+    insertLink() {
+        const cursorPos = this.editor.cm.getCursor('from');
+        const selectedText = this.editor.cm.getSelection() || '';
+        const newText = `[${selectedText}]()`;
+        this.editor.cm.focus();
+        this.editor.cm.replaceSelection(newText);
+        const cursorPosDiff = (selectedText === '') ? -3 : -1;
+        this.editor.cm.setCursor(cursorPos.line, cursorPos.ch + newText.length+cursorPosDiff);
+    }
+
+    showImageManager() {
+        const cursorPos = this.editor.cm.getCursor('from');
+        /** @type {ImageManager} **/
+        const imageManager = window.$components.first('image-manager');
+        imageManager.show(image => {
+            this.insertDrawing(image, cursorPos);
+        }, 'drawio');
+    }
+
+    // Show the popup link selector and insert a link when finished
+    showLinkSelector() {
+        const cursorPos = this.editor.cm.getCursor('from');
+        /** @type {EntitySelectorPopup} **/
+        const selector = window.$components.first('entity-selector-popup');
+        selector.show(entity => {
+            let selectedText = this.editor.cm.getSelection() || entity.name;
+            let newText = `[${selectedText}](${entity.link})`;
+            this.editor.cm.focus();
+            this.editor.cm.replaceSelection(newText);
+            this.editor.cm.setCursor(cursorPos.line, cursorPos.ch + newText.length);
+        });
+    }
+
+    // Show draw.io if enabled and handle save.
+    startDrawing() {
+        const url = this.editor.config.drawioUrl;
+        if (!url) return;
+
+        const cursorPos = this.editor.cm.getCursor('from');
+
+        DrawIO.show(url,() => {
+            return Promise.resolve('');
+        }, (pngData) => {
+
+            const data = {
+                image: pngData,
+                uploaded_to: Number(this.pageId),
+            };
+
+            window.$http.post("/images/drawio", data).then(resp => {
+                this.insertDrawing(resp.data, cursorPos);
+                DrawIO.close();
+            }).catch(err => {
+                this.handleDrawingUploadError(err);
+            });
+        });
+    }
+
+    insertDrawing(image, originalCursor) {
+        const newText = `<div drawio-diagram="${image.id}"><img src="${image.url}"></div>`;
+        this.editor.cm.focus();
+        this.editor.cm.replaceSelection(newText);
+        this.editor.cm.setCursor(originalCursor.line, originalCursor.ch + newText.length);
+    }
+
+    // Show draw.io if enabled and handle save.
+    editDrawing(imgContainer) {
+        const drawioUrl = this.editor.config.drawioUrl;
+        if (!drawioUrl) {
+            return;
+        }
+
+        const cursorPos = this.editor.cm.getCursor('from');
+        const drawingId = imgContainer.getAttribute('drawio-diagram');
+
+        DrawIO.show(drawioUrl, () => {
+            return DrawIO.load(drawingId);
+        }, (pngData) => {
+
+            const data = {
+                image: pngData,
+                uploaded_to: Number(this.editor.config.pageId),
+            };
+
+            window.$http.post("/images/drawio", data).then(resp => {
+                const newText = `<div drawio-diagram="${resp.data.id}"><img src="${resp.data.url}"></div>`;
+                const newContent = this.editor.cm.getValue().split('\n').map(line => {
+                    if (line.indexOf(`drawio-diagram="${drawingId}"`) !== -1) {
+                        return newText;
+                    }
+                    return line;
+                }).join('\n');
+                this.editor.cm.setValue(newContent);
+                this.editor.cm.setCursor(cursorPos);
+                this.editor.cm.focus();
+                DrawIO.close();
+            }).catch(err => {
+                this.handleDrawingUploadError(err);
+            });
+        });
+    }
+
+    handleDrawingUploadError(error) {
+        if (error.status === 413) {
+            window.$events.emit('error', this.editor.config.text.serverUploadLimit);
+        } else {
+            window.$events.emit('error', this.editor.config.text.imageUploadError);
+        }
+        console.log(error);
+    }
+
+    // Make the editor full screen
+    fullScreen() {
+        const container = this.editor.config.container;
+        const alreadyFullscreen = container.classList.contains('fullscreen');
+        container.classList.toggle('fullscreen', !alreadyFullscreen);
+        document.body.classList.toggle('markdown-fullscreen', !alreadyFullscreen);
+    }
+
+    // Scroll to a specified text
+    scrollToText(searchText) {
+        if (!searchText) {
+            return;
+        }
+
+        const content = this.editor.cm.getValue();
+        const lines = content.split(/\r?\n/);
+        let lineNumber = lines.findIndex(line => {
+            return line && line.indexOf(searchText) !== -1;
+        });
+
+        if (lineNumber === -1) {
+            return;
+        }
+
+        this.editor.cm.scrollIntoView({
+            line: lineNumber,
+        }, 200);
+        this.editor.cm.focus();
+        // set the cursor location.
+        this.editor.cm.setCursor({
+            line: lineNumber,
+            char: lines[lineNumber].length
+        })
+    }
+
+    focus() {
+        this.editor.cm.focus();
+    }
+
+    /**
+     * Insert content into the editor.
+     * @param {String} content
+     */
+    insertContent(content) {
+        this.editor.cm.replaceSelection(content);
+    }
+
+    /**
+     * Prepend content to the editor.
+     * @param {String} content
+     */
+    prependContent(content) {
+        const cursorPos = this.editor.cm.getCursor('from');
+        const newContent = content + '\n' + this.editor.cm.getValue();
+        this.editor.cm.setValue(newContent);
+        const prependLineCount = content.split('\n').length;
+        this.editor.cm.setCursor(cursorPos.line + prependLineCount, cursorPos.ch);
+    }
+
+    /**
+     * Append content to the editor.
+     * @param {String} content
+     */
+    appendContent(content) {
+        const cursorPos = this.editor.cm.getCursor('from');
+        const newContent = this.editor.cm.getValue() + '\n' + content;
+        this.editor.cm.setValue(newContent);
+        this.editor.cm.setCursor(cursorPos.line, cursorPos.ch);
+    }
+
+    /**
+     * Replace the editor's contents
+     * @param {String} content
+     */
+    replaceContent(content) {
+        this.editor.cm.setValue(content);
+    }
+
+    /**
+     * @param {String|RegExp} search
+     * @param {String} replace
+     */
+    findAndReplaceContent(search, replace) {
+        const text = this.editor.cm.getValue();
+        const cursor = this.editor.cm.listSelections();
+        this.editor.cm.setValue(text.replace(search, replace));
+        this.editor.cm.setSelections(cursor);
+    }
+
+    /**
+     * Replace the start of the line
+     * @param {String} newStart
+     */
+    replaceLineStart(newStart) {
+        const cursor = this.editor.cm.getCursor();
+        let lineContent = this.editor.cm.getLine(cursor.line);
+        const lineLen = lineContent.length;
+        const lineStart = lineContent.split(' ')[0];
+
+        // Remove symbol if already set
+        if (lineStart === newStart) {
+            lineContent = lineContent.replace(`${newStart} `, '');
+            this.editor.cm.replaceRange(lineContent, {line: cursor.line, ch: 0}, {line: cursor.line, ch: lineLen});
+            this.editor.cm.setCursor({line: cursor.line, ch: cursor.ch - (newStart.length + 1)});
+            return;
+        }
+
+        const alreadySymbol = /^[#>`]/.test(lineStart);
+        let posDif = 0;
+        if (alreadySymbol) {
+            posDif = newStart.length - lineStart.length;
+            lineContent = lineContent.replace(lineStart, newStart).trim();
+        } else if (newStart !== '') {
+            posDif = newStart.length + 1;
+            lineContent = newStart + ' ' + lineContent;
+        }
+        this.editor.cm.replaceRange(lineContent, {line: cursor.line, ch: 0}, {line: cursor.line, ch: lineLen});
+        this.editor.cm.setCursor({line: cursor.line, ch: cursor.ch + posDif});
+    }
+
+    /**
+     * Wrap the line in the given start and end contents.
+     * @param {String} start
+     * @param {String} end
+     */
+    wrapLine(start, end) {
+        const cursor = this.editor.cm.getCursor();
+        const lineContent = this.editor.cm.getLine(cursor.line);
+        const lineLen = lineContent.length;
+        let newLineContent = lineContent;
+
+        if (lineContent.indexOf(start) === 0 && lineContent.slice(-end.length) === end) {
+            newLineContent = lineContent.slice(start.length, lineContent.length - end.length);
+        } else {
+            newLineContent = `${start}${lineContent}${end}`;
+        }
+
+        this.editor.cm.replaceRange(newLineContent, {line: cursor.line, ch: 0}, {line: cursor.line, ch: lineLen});
+        this.editor.cm.setCursor({line: cursor.line, ch: cursor.ch + start.length});
+    }
+
+    /**
+     * Wrap the selection in the given contents start and end contents.
+     * @param {String} start
+     * @param {String} end
+     */
+    wrapSelection(start, end) {
+        const selection = this.editor.cm.getSelection();
+        if (selection === '') return this.wrapLine(start, end);
+
+        let newSelection = selection;
+        const frontDiff = 0;
+        let endDiff;
+
+        if (selection.indexOf(start) === 0 && selection.slice(-end.length) === end) {
+            newSelection = selection.slice(start.length, selection.length - end.length);
+            endDiff = -(end.length + start.length);
+        } else {
+            newSelection = `${start}${selection}${end}`;
+            endDiff = start.length + end.length;
+        }
+
+        const selections = this.editor.cm.listSelections()[0];
+        this.editor.cm.replaceSelection(newSelection);
+        const headFirst = selections.head.ch <= selections.anchor.ch;
+        selections.head.ch += headFirst ? frontDiff : endDiff;
+        selections.anchor.ch += headFirst ? endDiff : frontDiff;
+        this.editor.cm.setSelections([selections]);
+    }
+
+    replaceLineStartForOrderedList() {
+        const cursor = this.editor.cm.getCursor();
+        const prevLineContent = this.editor.cm.getLine(cursor.line - 1) || '';
+        const listMatch = prevLineContent.match(/^(\s*)(\d)([).])\s/) || [];
+
+        const number = (Number(listMatch[2]) || 0) + 1;
+        const whiteSpace = listMatch[1] || '';
+        const listMark = listMatch[3] || '.'
+
+        const prefix = `${whiteSpace}${number}${listMark}`;
+        return this.replaceLineStart(prefix);
+    }
+
+    /**
+     * Handle image upload and add image into markdown content
+     * @param {File} file
+     */
+    uploadImage(file) {
+        if (file === null || file.type.indexOf('image') !== 0) return;
+        let ext = 'png';
+
+        if (file.name) {
+            let fileNameMatches = file.name.match(/\.(.+)$/);
+            if (fileNameMatches.length > 1) ext = fileNameMatches[1];
+        }
+
+        // Insert image into markdown
+        const id = "image-" + Math.random().toString(16).slice(2);
+        const placeholderImage = window.baseUrl(`/loading.gif#upload${id}`);
+        const selectedText = this.editor.cm.getSelection();
+        const placeHolderText = `![${selectedText}](${placeholderImage})`;
+        const cursor = this.editor.cm.getCursor();
+        this.editor.cm.replaceSelection(placeHolderText);
+        this.editor.cm.setCursor({line: cursor.line, ch: cursor.ch + selectedText.length + 3});
+
+        const remoteFilename = "image-" + Date.now() + "." + ext;
+        const formData = new FormData();
+        formData.append('file', file, remoteFilename);
+        formData.append('uploaded_to', this.editor.config.pageId);
+
+        window.$http.post('/images/gallery', formData).then(resp => {
+            const newContent = `[![${selectedText}](${resp.data.thumbs.display})](${resp.data.url})`;
+            this.findAndReplaceContent(placeHolderText, newContent);
+        }).catch(err => {
+            window.$events.emit('error', this.editor.config.text.imageUploadError);
+            this.findAndReplaceContent(placeHolderText, selectedText);
+            console.log(err);
+        });
+    }
+
+    syncDisplayPosition() {
+        // Thanks to http://liuhao.im/english/2015/11/10/the-sync-scroll-of-markdown-editor-in-javascript.html
+        const scroll = this.editor.cm.getScrollInfo();
+        const atEnd = scroll.top + scroll.clientHeight === scroll.height;
+        if (atEnd) {
+            editor.display.scrollToIndex(-1);
+            return;
+        }
+
+        const lineNum = this.editor.cm.lineAtHeight(scroll.top, 'local');
+        const range = this.editor.cm.getRange({line: 0, ch: null}, {line: lineNum, ch: null});
+        const parser = new DOMParser();
+        const doc = parser.parseFromString(this.editor.markdown.render(range), 'text/html');
+        const totalLines = doc.documentElement.querySelectorAll('body > *');
+        editor.display.scrollToIndex(totalLines.length);
+    }
+
+    /**
+     * Fetch and insert the template of the given ID.
+     * The page-relative position provided can be used to determine insert location if possible.
+     * @param {String} templateId
+     * @param {Number} posX
+     * @param {Number} posY
+     */
+    insertTemplate(templateId, posX, posY) {
+        const cursorPos = this.editor.cm.coordsChar({left: posX, top: posY});
+        this.editor.cm.setCursor(cursorPos);
+        window.$http.get(`/templates/${templateId}`).then(resp => {
+            const content = resp.data.markdown || resp.data.html;
+            this.editor.cm.replaceSelection(content);
+        });
+    }
+
+    /**
+     * Insert multiple images from the clipboard.
+     * @param {File[]} images
+     */
+    insertClipboardImages(images) {
+        const cursorPos = this.editor.cm.coordsChar({left: event.pageX, top: event.pageY});
+        this.editor.cm.setCursor(cursorPos);
+        for (const image of images) {
+            editor.actions.uploadImage(image);
+        }
+    }
+}

resources/js/markdown/codemirror.js

@@ -0,0 +1,64 @@
+import {provide as provideShortcuts} from "./shortcuts";
+import {debounce} from "../services/util";
+import Clipboard from "../services/clipboard";
+
+/**
+ * Initiate the codemirror instance for the markdown editor.
+ * @param {MarkdownEditor} editor
+ * @returns {Promise<void>}
+ */
+export async function init(editor) {
+    const Code = await window.importVersioned('code');
+    const cm = Code.markdownEditor(editor.config.inputEl);
+
+    // Will force to remain as ltr for now due to issues when HTML is in editor.
+    cm.setOption('direction', 'ltr');
+    // Register shortcuts
+    cm.setOption('extraKeys', provideShortcuts(editor, Code.getMetaKey()));
+
+
+    // Register codemirror events
+
+    // Update data on content change
+    cm.on('change', (instance, changeObj) => editor.actions.updateAndRender());
+
+    // Handle scroll to sync display view
+    const onScrollDebounced = debounce(editor.actions.syncDisplayPosition, 100, false);
+    cm.on('scroll', instance => onScrollDebounced(instance));
+
+    // Handle image paste
+    cm.on('paste', (cm, event) => {
+        const clipboard = new Clipboard(event.clipboardData || event.dataTransfer);
+
+        // Don't handle the event ourselves if no items exist of contains table-looking data
+        if (!clipboard.hasItems() || clipboard.containsTabularData()) {
+            return;
+        }
+
+        const images = clipboard.getImages();
+        for (const image of images) {
+            editor.actions.uploadImage(image);
+        }
+    });
+
+    // Handle image & content drag n drop
+    cm.on('drop', (cm, event) => {
+
+        const templateId = event.dataTransfer.getData('bookstack/template');
+        if (templateId) {
+            event.preventDefault();
+            editor.actions.insertTemplate(templateId, event.pageX, event.pageY);
+        }
+
+        const clipboard = new Clipboard(event.dataTransfer);
+        const clipboardImages = clipboard.getImages();
+        if (clipboardImages.length > 0) {
+            event.stopPropagation();
+            event.preventDefault();
+            editor.actions.insertClipboardImages(clipboardImages);
+        }
+
+    });
+
+    return cm;
+}

resources/js/markdown/common-events.js

@@ -0,0 +1,33 @@
+function getContentToInsert({html, markdown}) {
+    return markdown || html;
+}
+
+/**
+ * @param {MarkdownEditor} editor
+ */
+export function listen(editor) {
+
+    window.$events.listen('editor::replace', (eventContent) => {
+        const markdown = getContentToInsert(eventContent);
+        editor.actions.replaceContent(markdown);
+    });
+
+    window.$events.listen('editor::append', (eventContent) => {
+        const markdown = getContentToInsert(eventContent);
+        editor.actions.appendContent(markdown);
+    });
+
+    window.$events.listen('editor::prepend', (eventContent) => {
+        const markdown = getContentToInsert(eventContent);
+        editor.actions.prependContent(markdown);
+    });
+
+    window.$events.listen('editor::insert', (eventContent) => {
+        const markdown = getContentToInsert(eventContent);
+        editor.actions.insertContent(markdown);
+    });
+
+    window.$events.listen('editor::focus', () => {
+        editor.actions.focus();
+    });
+}

resources/js/markdown/display.js

@@ -0,0 +1,101 @@
+import {patchDomFromHtmlString} from "../services/vdom";
+
+export class Display {
+
+    /**
+     * @param {MarkdownEditor} editor
+     */
+    constructor(editor) {
+        this.editor = editor;
+        this.container = editor.config.displayEl;
+
+        this.doc = null;
+        this.lastDisplayClick = 0;
+
+        if (this.container.contentDocument.readyState === 'complete') {
+            this.onLoad();
+        } else {
+            this.container.addEventListener('load', this.onLoad.bind(this));
+        }
+    }
+
+    onLoad() {
+        this.doc = this.container.contentDocument;
+
+        this.loadStylesIntoDisplay();
+        this.doc.body.className = 'page-content';
+
+        // Prevent markdown display link click redirect
+        this.doc.addEventListener('click', this.onDisplayClick)
+    }
+
+    /**
+     * @param {MouseEvent} event
+     */
+    onDisplayClick(event) {
+        const isDblClick = Date.now() - this.lastDisplayClick < 300;
+
+        const link = event.target.closest('a');
+        if (link !== null) {
+            event.preventDefault();
+            window.open(link.getAttribute('href'));
+            return;
+        }
+
+        const drawing = event.target.closest('[drawio-diagram]');
+        if (drawing !== null && isDblClick) {
+            this.editor.actions.editDrawing(drawing);
+            return;
+        }
+
+        this.lastDisplayClick = Date.now();
+    }
+
+    loadStylesIntoDisplay() {
+        this.doc.documentElement.classList.add('markdown-editor-display');
+
+        // Set display to be dark mode if parent is
+        if (document.documentElement.classList.contains('dark-mode')) {
+            this.doc.documentElement.style.backgroundColor = '#222';
+            this.doc.documentElement.classList.add('dark-mode');
+        }
+
+        this.doc.head.innerHTML = '';
+        const styles = document.head.querySelectorAll('style,link[rel=stylesheet]');
+        for (const style of styles) {
+            const copy = style.cloneNode(true);
+            this.doc.head.appendChild(copy);
+        }
+    }
+
+    /**
+     * Patch the display DOM with the given HTML content.
+     * @param {String} html
+     */
+    patchWithHtml(html) {
+        const body = this.doc.body;
+
+        if (body.children.length === 0) {
+            const wrap = document.createElement('div');
+            this.doc.body.append(wrap);
+        }
+
+        const target = body.children[0];
+
+        patchDomFromHtmlString(target, html);
+    }
+
+    /**
+     * Scroll to the given block index within the display content.
+     * Will scroll to the end if the index is -1.
+     * @param {Number} index
+     */
+    scrollToIndex(index) {
+        const elems = this.doc.body.children;
+        if (elems.length <= index) return;
+
+        const topElem = (index === -1) ? elems[elems.length-1] : elems[index];
+        topElem.scrollIntoView({ block: 'start', inline: 'nearest', behavior: 'smooth'});
+    }
+
+}

resources/js/markdown/editor.js

@@ -0,0 +1,50 @@
+import {Markdown} from "./markdown";
+import {Display} from "./display";
+import {Actions} from "./actions";
+import {listen} from "./common-events";
+import {init as initCodemirror} from "./codemirror";
+
+
+/**
+ * Initiate a new markdown editor instance.
+ * @param {MarkdownEditorConfig} config
+ * @returns {Promise<MarkdownEditor>}
+ */
+export async function init(config) {
+
+    /**
+     * @type {MarkdownEditor}
+     */
+    const editor = {
+        config,
+        markdown: new Markdown(),
+    };
+
+    editor.actions = new Actions(editor);
+    editor.display = new Display(editor);
+    editor.cm = await initCodemirror(editor);
+
+    listen(editor);
+
+    return editor;
+}
+
+
+/**
+ * @typedef MarkdownEditorConfig
+ * @property {String} pageId
+ * @property {Element} container
+ * @property {Element} displayEl
+ * @property {HTMLTextAreaElement} inputEl
+ * @property {String} drawioUrl
+ * @property {Object<String, String>} text
+ */
+
+/**
+ * @typedef MarkdownEditor
+ * @property {MarkdownEditorConfig} config
+ * @property {Display} display
+ * @property {Markdown} markdown
+ * @property {Actions} actions
+ * @property {CodeMirror} cm
+ */

resources/js/markdown/markdown.js

@@ -0,0 +1,30 @@
+import MarkdownIt from "markdown-it";
+import mdTasksLists from 'markdown-it-task-lists';
+
+export class Markdown {
+
+    constructor() {
+        this.renderer = new MarkdownIt({html: true});
+        this.renderer.use(mdTasksLists, {label: true});
+    }
+
+    /**
+     * Get the front-end render used to convert markdown to HTML.
+     * @returns {MarkdownIt}
+     */
+    getRenderer() {
+        return this.renderer;
+    }
+
+    /**
+     * Convert the given Markdown to HTML.
+     * @param {String} markdown
+     * @returns {String}
+     */
+    render(markdown) {
+        return this.renderer.render(markdown);
+    }
+}
+
+
+

resources/js/markdown/shortcuts.js

@@ -0,0 +1,48 @@
+/**
+ * Provide shortcuts for the given codemirror instance.
+ * @param {MarkdownEditor} editor
+ * @param {String} metaKey
+ * @returns {Object<String, Function>}
+ */
+export function provide(editor, metaKey) {
+    const shortcuts = {};
+
+    // Insert Image shortcut
+    shortcuts[`${metaKey}-Alt-I`] = function(cm) {
+        const selectedText = cm.getSelection();
+        const newText = `![${selectedText}](http://)`;
+        const cursorPos = cm.getCursor('from');
+        cm.replaceSelection(newText);
+        cm.setCursor(cursorPos.line, cursorPos.ch + newText.length -1);
+    };
+
+    // Save draft
+    shortcuts[`${metaKey}-S`] = cm => window.$events.emit('editor-save-draft');
+
+    // Save page
+    shortcuts[`${metaKey}-Enter`] = cm => window.$events.emit('editor-save-page');
+
+    // Show link selector
+    shortcuts[`Shift-${metaKey}-K`] = cm => editor.actions.showLinkSelector();
+
+    // Insert Link
+    shortcuts[`${metaKey}-K`] = cm => editor.actions.insertLink();
+
+    // FormatShortcuts
+    shortcuts[`${metaKey}-1`] = cm => editor.actions.replaceLineStart('##');
+    shortcuts[`${metaKey}-2`] = cm => editor.actions.replaceLineStart('###');
+    shortcuts[`${metaKey}-3`] = cm => editor.actions.replaceLineStart('####');
+    shortcuts[`${metaKey}-4`] = cm => editor.actions.replaceLineStart('#####');
+    shortcuts[`${metaKey}-5`] = cm => editor.actions.replaceLineStart('');
+    shortcuts[`${metaKey}-D`] = cm => editor.actions.replaceLineStart('');
+    shortcuts[`${metaKey}-6`] = cm => editor.actions.replaceLineStart('>');
+    shortcuts[`${metaKey}-Q`] = cm => editor.actions.replaceLineStart('>');
+    shortcuts[`${metaKey}-7`] = cm => editor.actions.wrapSelection('\n```\n', '\n```');
+    shortcuts[`${metaKey}-8`] = cm => editor.actions.wrapSelection('`', '`');
+    shortcuts[`Shift-${metaKey}-E`] = cm => editor.actions.wrapSelection('`', '`');
+    shortcuts[`${metaKey}-9`] = cm => editor.actions.wrapSelection('<p class="callout info">', '</p>');
+    shortcuts[`${metaKey}-P`] = cm => editor.actions.replaceLineStart('-')
+    shortcuts[`${metaKey}-O`] = cm => editor.actions.replaceLineStartForOrderedList()
+
+    return shortcuts;
+}