diff --git a/resources/js/components/markdown-editor.js b/resources/js/components/markdown-editor.js index b9567d864..671aa4e65 100644 --- a/resources/js/components/markdown-editor.js +++ b/resources/js/components/markdown-editor.js @@ -1,10 +1,6 @@ -import MarkdownIt from "markdown-it"; -import mdTasksLists from 'markdown-it-task-lists'; -import Clipboard from "../services/clipboard"; import {debounce} from "../services/util"; -import {patchDomFromHtmlString} from "../services/vdom"; -import DrawIO from "../services/drawio"; import {Component} from "./component"; +import {init as initEditor} from "../markdown/editor"; export class MarkdownEditor extends Component { @@ -16,80 +12,53 @@ export class MarkdownEditor extends Component { this.imageUploadErrorText = this.$opts.imageUploadErrorText; this.serverUploadLimitText = this.$opts.serverUploadLimitText; - this.markdown = new MarkdownIt({html: true}); - this.markdown.use(mdTasksLists, {label: true}); + this.display = this.$refs.display; + this.input = this.$refs.input; - this.display = this.elem.querySelector('.markdown-display'); - - this.displayStylesLoaded = false; - this.input = this.elem.querySelector('textarea'); - - this.cm = null; - this.Code = null; - const cmLoadPromise = window.importVersioned('code').then(Code => { - this.cm = Code.markdownEditor(this.input); - this.Code = Code; - return this.cm; - }); - - this.onMarkdownScroll = this.onMarkdownScroll.bind(this); - - const displayLoad = () => { - this.displayDoc = this.display.contentDocument; - this.init(cmLoadPromise); - }; - - if (this.display.contentDocument.readyState === 'complete') { - displayLoad(); - } else { - this.display.addEventListener('load', displayLoad.bind(this)); - } - - window.$events.emitPublic(this.elem, 'editor-markdown::setup', { - markdownIt: this.markdown, + this.editor = null; + initEditor({ + pageId: this.pageId, + container: this.elem, displayEl: this.display, - codeMirrorInstance: this.cm, + inputEl: this.input, + drawioUrl: this.getDrawioUrl(), + text: { + serverUploadLimit: this.serverUploadLimitText, + imageUploadError: this.imageUploadErrorText, + } + }).then(editor => { + this.editor = editor; + this.setupListeners(); + this.emitEditorEvents(); + this.scrollToTextIfNeeded(); + this.editor.actions.updateAndRender(); }); } - init(cmLoadPromise) { - - let lastClick = 0; - - // Prevent markdown display link click redirect - this.displayDoc.addEventListener('click', event => { - let isDblClick = Date.now() - lastClick < 300; - - let link = event.target.closest('a'); - if (link !== null) { - event.preventDefault(); - window.open(link.getAttribute('href')); - return; - } - - let drawing = event.target.closest('[drawio-diagram]'); - if (drawing !== null && isDblClick) { - this.actionEditDrawing(drawing); - return; - } - - lastClick = Date.now(); + emitEditorEvents() { + window.$events.emitPublic(this.elem, 'editor-markdown::setup', { + markdownIt: this.editor.markdown.getRenderer(), + displayEl: this.display, + codeMirrorInstance: this.editor.cm, }); + } + + setupListeners() { // Button actions this.elem.addEventListener('click', event => { let button = event.target.closest('button[data-action]'); if (button === null) return; - let action = button.getAttribute('data-action'); - if (action === 'insertImage') this.actionInsertImage(); - if (action === 'insertLink') this.actionShowLinkSelector(); + const action = button.getAttribute('data-action'); + if (action === 'insertImage') this.editor.actions.insertImage(); + if (action === 'insertLink') this.editor.actions.showLinkSelector(); if (action === 'insertDrawing' && (event.ctrlKey || event.metaKey)) { - this.actionShowImageManager(); + this.editor.actions.showImageManager(); return; } - if (action === 'insertDrawing') this.actionStartDrawing(); - if (action === 'fullscreen') this.actionFullScreen(); + if (action === 'insertDrawing') this.editor.actions.startDrawing(); + if (action === 'fullscreen') this.editor.actions.fullScreen(); }); // Mobile section toggling @@ -98,531 +67,38 @@ export class MarkdownEditor extends Component { if (!toolbarLabel) return; const currentActiveSections = this.elem.querySelectorAll('.markdown-editor-wrap'); - for (let activeElem of currentActiveSections) { + for (const activeElem of currentActiveSections) { activeElem.classList.remove('active'); } toolbarLabel.closest('.markdown-editor-wrap').classList.add('active'); }); - cmLoadPromise.then(cm => { - this.codeMirrorSetup(cm); + // Refresh CodeMirror on container resize + const resizeDebounced = debounce(() => this.editor.cm.refresh(), 100, false); + const observer = new ResizeObserver(resizeDebounced); + observer.observe(this.elem); + } - // Refresh CodeMirror on container resize - const resizeDebounced = debounce(() => this.Code.updateLayout(cm), 100, false); - const observer = new ResizeObserver(resizeDebounced); - observer.observe(this.elem); - }); - - this.listenForBookStackEditorEvents(); - - // Scroll to text if needed. + scrollToTextIfNeeded() { const queryParams = (new URL(window.location)).searchParams; const scrollText = queryParams.get('content-text'); if (scrollText) { - this.scrollToText(scrollText); + this.editor.actions.scrollToText(scrollText); } } - // Update the input content and render the display. - updateAndRender() { - const content = this.cm.getValue(); - this.input.value = content; - - const html = this.markdown.render(content); - window.$events.emit('editor-html-change', html); - window.$events.emit('editor-markdown-change', content); - - // Set body content - const target = this.getDisplayTarget(); - this.displayDoc.body.className = 'page-content'; - patchDomFromHtmlString(target, html); - - // Copy styles from page head and set custom styles for editor - this.loadStylesIntoDisplay(); - } - - getDisplayTarget() { - const body = this.displayDoc.body; - - if (body.children.length === 0) { - const wrap = document.createElement('div'); - this.displayDoc.body.append(wrap); - } - - return body.children[0]; - } - - loadStylesIntoDisplay() { - if (this.displayStylesLoaded) return; - this.displayDoc.documentElement.classList.add('markdown-editor-display'); - // Set display to be dark mode if parent is - - if (document.documentElement.classList.contains('dark-mode')) { - this.displayDoc.documentElement.style.backgroundColor = '#222'; - this.displayDoc.documentElement.classList.add('dark-mode'); - } - - this.displayDoc.head.innerHTML = ''; - const styles = document.head.querySelectorAll('style,link[rel=stylesheet]'); - for (let style of styles) { - const copy = style.cloneNode(true); - this.displayDoc.head.appendChild(copy); - } - - this.displayStylesLoaded = true; - } - - onMarkdownScroll(lineCount) { - const elems = this.displayDoc.body.children; - if (elems.length <= lineCount) return; - - const topElem = (lineCount === -1) ? elems[elems.length-1] : elems[lineCount]; - topElem.scrollIntoView({ block: 'start', inline: 'nearest', behavior: 'smooth'}); - } - - codeMirrorSetup(cm) { - const context = this; - - // Text direction - // cm.setOption('direction', this.textDirection); - cm.setOption('direction', 'ltr'); // Will force to remain as ltr for now due to issues when HTML is in editor. - // Custom key commands - let metaKey = this.Code.getMetaKey(); - const extraKeys = {}; - // Insert Image shortcut - extraKeys[`${metaKey}-Alt-I`] = function(cm) { - let selectedText = cm.getSelection(); - let newText = `![${selectedText}](http://)`; - let cursorPos = cm.getCursor('from'); - cm.replaceSelection(newText); - cm.setCursor(cursorPos.line, cursorPos.ch + newText.length -1); - }; - // Save draft - extraKeys[`${metaKey}-S`] = cm => {window.$events.emit('editor-save-draft')}; - // Save page - extraKeys[`${metaKey}-Enter`] = cm => {window.$events.emit('editor-save-page')}; - // Show link selector - extraKeys[`Shift-${metaKey}-K`] = cm => {this.actionShowLinkSelector()}; - // Insert Link - extraKeys[`${metaKey}-K`] = cm => {insertLink()}; - // FormatShortcuts - extraKeys[`${metaKey}-1`] = cm => {replaceLineStart('##');}; - extraKeys[`${metaKey}-2`] = cm => {replaceLineStart('###');}; - extraKeys[`${metaKey}-3`] = cm => {replaceLineStart('####');}; - extraKeys[`${metaKey}-4`] = cm => {replaceLineStart('#####');}; - extraKeys[`${metaKey}-5`] = cm => {replaceLineStart('');}; - extraKeys[`${metaKey}-D`] = cm => {replaceLineStart('');}; - extraKeys[`${metaKey}-6`] = cm => {replaceLineStart('>');}; - extraKeys[`${metaKey}-Q`] = cm => {replaceLineStart('>');}; - extraKeys[`${metaKey}-7`] = cm => {wrapSelection('\n```\n', '\n```');}; - extraKeys[`${metaKey}-8`] = cm => {wrapSelection('`', '`');}; - extraKeys[`Shift-${metaKey}-E`] = cm => {wrapSelection('`', '`');}; - extraKeys[`${metaKey}-9`] = cm => {wrapSelection('

', '

');}; - extraKeys[`${metaKey}-P`] = cm => {replaceLineStart('-')} - extraKeys[`${metaKey}-O`] = cm => {replaceLineStartForOrderedList()} - cm.setOption('extraKeys', extraKeys); - - // Update data on content change - cm.on('change', (instance, changeObj) => { - this.updateAndRender(); - }); - - const onScrollDebounced = debounce((instance) => { - // Thanks to http://liuhao.im/english/2015/11/10/the-sync-scroll-of-markdown-editor-in-javascript.html - let scroll = instance.getScrollInfo(); - let atEnd = scroll.top + scroll.clientHeight === scroll.height; - if (atEnd) { - this.onMarkdownScroll(-1); - return; - } - - let lineNum = instance.lineAtHeight(scroll.top, 'local'); - let range = instance.getRange({line: 0, ch: null}, {line: lineNum, ch: null}); - let parser = new DOMParser(); - let doc = parser.parseFromString(this.markdown.render(range), 'text/html'); - let totalLines = doc.documentElement.querySelectorAll('body > *'); - this.onMarkdownScroll(totalLines.length); - }, 100); - - // Handle scroll to sync display view - 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) { - uploadImage(image); - } - }); - - // Handle image & content drag n drop - cm.on('drop', (cm, event) => { - - const templateId = event.dataTransfer.getData('bookstack/template'); - if (templateId) { - const cursorPos = cm.coordsChar({left: event.pageX, top: event.pageY}); - cm.setCursor(cursorPos); - event.preventDefault(); - window.$http.get(`/templates/${templateId}`).then(resp => { - const content = resp.data.markdown || resp.data.html; - cm.replaceSelection(content); - }); - } - - const clipboard = new Clipboard(event.dataTransfer); - if (clipboard.hasItems() && clipboard.getImages().length > 0) { - const cursorPos = cm.coordsChar({left: event.pageX, top: event.pageY}); - cm.setCursor(cursorPos); - event.stopPropagation(); - event.preventDefault(); - const images = clipboard.getImages(); - for (const image of images) { - uploadImage(image); - } - } - - }); - - // Helper to replace editor content - function replaceContent(search, replace) { - let text = cm.getValue(); - let cursor = cm.listSelections(); - cm.setValue(text.replace(search, replace)); - cm.setSelections(cursor); - } - - // Helper to replace the start of the line - function replaceLineStart(newStart) { - let cursor = cm.getCursor(); - let lineContent = cm.getLine(cursor.line); - let lineLen = lineContent.length; - let lineStart = lineContent.split(' ')[0]; - - // Remove symbol if already set - if (lineStart === newStart) { - lineContent = lineContent.replace(`${newStart} `, ''); - cm.replaceRange(lineContent, {line: cursor.line, ch: 0}, {line: cursor.line, ch: lineLen}); - cm.setCursor({line: cursor.line, ch: cursor.ch - (newStart.length + 1)}); - return; - } - - let alreadySymbol = /^[#>`]/.test(lineStart); - let posDif = 0; - if (alreadySymbol) { - posDif = newStart.length - lineStart.length; - lineContent = lineContent.replace(lineStart, newStart).trim(); - } else if (newStart !== '') { - posDif = newStart.length + 1; - lineContent = newStart + ' ' + lineContent; - } - cm.replaceRange(lineContent, {line: cursor.line, ch: 0}, {line: cursor.line, ch: lineLen}); - cm.setCursor({line: cursor.line, ch: cursor.ch + posDif}); - } - - function wrapLine(start, end) { - let cursor = cm.getCursor(); - let lineContent = cm.getLine(cursor.line); - let lineLen = lineContent.length; - let newLineContent = lineContent; - - if (lineContent.indexOf(start) === 0 && lineContent.slice(-end.length) === end) { - newLineContent = lineContent.slice(start.length, lineContent.length - end.length); - } else { - newLineContent = `${start}${lineContent}${end}`; - } - - cm.replaceRange(newLineContent, {line: cursor.line, ch: 0}, {line: cursor.line, ch: lineLen}); - cm.setCursor({line: cursor.line, ch: cursor.ch + start.length}); - } - - function wrapSelection(start, end) { - let selection = cm.getSelection(); - if (selection === '') return wrapLine(start, end); - - let newSelection = selection; - let frontDiff = 0; - let endDiff = 0; - - 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}${end}`; - endDiff = start.length + end.length; - } - - let selections = cm.listSelections()[0]; - cm.replaceSelection(newSelection); - let headFirst = selections.head.ch <= selections.anchor.ch; - selections.head.ch += headFirst ? frontDiff : endDiff; - selections.anchor.ch += headFirst ? endDiff : frontDiff; - cm.setSelections([selections]); - } - - function replaceLineStartForOrderedList() { - const cursor = cm.getCursor(); - const prevLineContent = cm.getLine(cursor.line - 1) || ''; - const listMatch = prevLineContent.match(/^(\s*)(\d)([).])\s/) || []; - - const number = (Number(listMatch[2]) || 0) + 1; - const whiteSpace = listMatch[1] || ''; - const listMark = listMatch[3] || '.' - - const prefix = `${whiteSpace}${number}${listMark}`; - return replaceLineStart(prefix); - } - - // Handle image upload and add image into markdown content - function 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 = cm.getSelection(); - const placeHolderText = `![${selectedText}](${placeholderImage})`; - const cursor = cm.getCursor(); - cm.replaceSelection(placeHolderText); - 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', context.pageId); - - window.$http.post('/images/gallery', formData).then(resp => { - const newContent = `[![${selectedText}](${resp.data.thumbs.display})](${resp.data.url})`; - replaceContent(placeHolderText, newContent); - }).catch(err => { - window.$events.emit('error', context.imageUploadErrorText); - replaceContent(placeHolderText, selectedText); - console.log(err); - }); - } - - function insertLink() { - let cursorPos = cm.getCursor('from'); - let selectedText = cm.getSelection() || ''; - let newText = `[${selectedText}]()`; - cm.focus(); - cm.replaceSelection(newText); - let cursorPosDiff = (selectedText === '') ? -3 : -1; - cm.setCursor(cursorPos.line, cursorPos.ch + newText.length+cursorPosDiff); - } - - this.updateAndRender(); - } - - actionInsertImage() { - const cursorPos = this.cm.getCursor('from'); - /** @type {ImageManager} **/ - const imageManager = window.$components.first('image-manager'); - imageManager.show(image => { - const imageUrl = image.thumbs.display || image.url; - let selectedText = this.cm.getSelection(); - let newText = "[![" + (selectedText || image.name) + "](" + imageUrl + ")](" + image.url + ")"; - this.cm.focus(); - this.cm.replaceSelection(newText); - this.cm.setCursor(cursorPos.line, cursorPos.ch + newText.length); - }, 'gallery'); - } - - actionShowImageManager() { - const cursorPos = this.cm.getCursor('from'); - /** @type {ImageManager} **/ - const imageManager = window.$components.first('image-manager'); - imageManager.show(image => { - this.insertDrawing(image, cursorPos); - }, 'drawio'); - } - - // Show the popup link selector and insert a link when finished - actionShowLinkSelector() { - const cursorPos = this.cm.getCursor('from'); - /** @type {EntitySelectorPopup} **/ - const selector = window.$components.first('entity-selector-popup'); - selector.show(entity => { - let selectedText = this.cm.getSelection() || entity.name; - let newText = `[${selectedText}](${entity.link})`; - this.cm.focus(); - this.cm.replaceSelection(newText); - this.cm.setCursor(cursorPos.line, cursorPos.ch + newText.length); - }); - } - + /** + * Get the URL for the configured drawio instance. + * @returns {String} + */ getDrawioUrl() { - const drawioUrlElem = document.querySelector('[drawio-url]'); - return drawioUrlElem ? drawioUrlElem.getAttribute('drawio-url') : false; - } - - // Show draw.io if enabled and handle save. - actionStartDrawing() { - const url = this.getDrawioUrl(); - if (!url) return; - - const cursorPos = this.cm.getCursor('from'); - - DrawIO.show(url,() => { - return Promise.resolve(''); - }, (pngData) => { - - const data = { - image: pngData, - uploaded_to: Number(this.pageId), - }; - - window.$http.post("/images/drawio", data).then(resp => { - this.insertDrawing(resp.data, cursorPos); - DrawIO.close(); - }).catch(err => { - this.handleDrawingUploadError(err); - }); - }); - } - - insertDrawing(image, originalCursor) { - const newText = `
`; - this.cm.focus(); - this.cm.replaceSelection(newText); - this.cm.setCursor(originalCursor.line, originalCursor.ch + newText.length); - } - - // Show draw.io if enabled and handle save. - actionEditDrawing(imgContainer) { - const drawioUrl = this.getDrawioUrl(); - if (!drawioUrl) { - return; + const drawioAttrEl = document.querySelector('[drawio-url]'); + if (!drawioAttrEl) { + return ''; } - const cursorPos = this.cm.getCursor('from'); - const drawingId = imgContainer.getAttribute('drawio-diagram'); - - DrawIO.show(drawioUrl, () => { - return DrawIO.load(drawingId); - }, (pngData) => { - - let data = { - image: pngData, - uploaded_to: Number(this.pageId), - }; - - window.$http.post("/images/drawio", data).then(resp => { - let newText = `
`; - let newContent = this.cm.getValue().split('\n').map(line => { - if (line.indexOf(`drawio-diagram="${drawingId}"`) !== -1) { - return newText; - } - return line; - }).join('\n'); - this.cm.setValue(newContent); - this.cm.setCursor(cursorPos); - this.cm.focus(); - DrawIO.close(); - }).catch(err => { - this.handleDrawingUploadError(err); - }); - }); + return drawioAttrEl.getAttribute('drawio-url') || ''; } - handleDrawingUploadError(error) { - if (error.status === 413) { - window.$events.emit('error', this.serverUploadLimitText); - } else { - window.$events.emit('error', this.imageUploadErrorText); - } - console.log(error); - } - - // Make the editor full screen - actionFullScreen() { - const alreadyFullscreen = this.elem.classList.contains('fullscreen'); - this.elem.classList.toggle('fullscreen', !alreadyFullscreen); - document.body.classList.toggle('markdown-fullscreen', !alreadyFullscreen); - } - - // Scroll to a specified text - scrollToText(searchText) { - if (!searchText) { - return; - } - - const content = this.cm.getValue(); - const lines = content.split(/\r?\n/); - let lineNumber = lines.findIndex(line => { - return line && line.indexOf(searchText) !== -1; - }); - - if (lineNumber === -1) { - return; - } - - this.cm.scrollIntoView({ - line: lineNumber, - }, 200); - this.cm.focus(); - // set the cursor location. - this.cm.setCursor({ - line: lineNumber, - char: lines[lineNumber].length - }) - } - - listenForBookStackEditorEvents() { - - function getContentToInsert({html, markdown}) { - return markdown || html; - } - - // Replace editor content - window.$events.listen('editor::replace', (eventContent) => { - const markdown = getContentToInsert(eventContent); - this.cm.setValue(markdown); - }); - - // Append editor content - window.$events.listen('editor::append', (eventContent) => { - const cursorPos = this.cm.getCursor('from'); - const markdown = getContentToInsert(eventContent); - const content = this.cm.getValue() + '\n' + markdown; - this.cm.setValue(content); - this.cm.setCursor(cursorPos.line, cursorPos.ch); - }); - - // Prepend editor content - window.$events.listen('editor::prepend', (eventContent) => { - const cursorPos = this.cm.getCursor('from'); - const markdown = getContentToInsert(eventContent); - const content = markdown + '\n' + this.cm.getValue(); - this.cm.setValue(content); - const prependLineCount = markdown.split('\n').length; - this.cm.setCursor(cursorPos.line + prependLineCount, cursorPos.ch); - }); - - // Insert editor content at the current location - window.$events.listen('editor::insert', (eventContent) => { - const markdown = getContentToInsert(eventContent); - this.cm.replaceSelection(markdown); - }); - - // Focus on editor - window.$events.listen('editor::focus', () => { - this.cm.focus(); - }); - } } diff --git a/resources/js/markdown/actions.js b/resources/js/markdown/actions.js new file mode 100644 index 000000000..96093d833 --- /dev/null +++ b/resources/js/markdown/actions.js @@ -0,0 +1,410 @@ +import DrawIO from "../services/drawio"; + +export class Actions { + /** + * @param {MarkdownEditor} editor + */ + constructor(editor) { + this.editor = editor; + } + + updateAndRender() { + const content = this.editor.cm.getValue(); + this.editor.config.inputEl.value = content; + + const html = this.editor.markdown.render(content); + window.$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 = `
`; + 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.$http.post("/images/drawio", data).then(resp => { + const newText = `
`; + const newContent = this.editor.cm.getValue().split('\n').map(line => { + if (line.indexOf(`drawio-diagram="${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); + } + } +} \ No newline at end of file diff --git a/resources/js/markdown/codemirror.js b/resources/js/markdown/codemirror.js new file mode 100644 index 000000000..27491902a --- /dev/null +++ b/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} + */ +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; +} \ No newline at end of file diff --git a/resources/js/markdown/common-events.js b/resources/js/markdown/common-events.js new file mode 100644 index 000000000..3afd03dd5 --- /dev/null +++ b/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(); + }); +} \ No newline at end of file diff --git a/resources/js/markdown/display.js b/resources/js/markdown/display.js new file mode 100644 index 000000000..742198b46 --- /dev/null +++ b/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'}); + } + +} \ No newline at end of file diff --git a/resources/js/markdown/editor.js b/resources/js/markdown/editor.js new file mode 100644 index 000000000..decebe5f4 --- /dev/null +++ b/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} + */ +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} text + */ + +/** + * @typedef MarkdownEditor + * @property {MarkdownEditorConfig} config + * @property {Display} display + * @property {Markdown} markdown + * @property {Actions} actions + * @property {CodeMirror} cm + */ \ No newline at end of file diff --git a/resources/js/markdown/markdown.js b/resources/js/markdown/markdown.js new file mode 100644 index 000000000..ef3a02872 --- /dev/null +++ b/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); + } +} + + + diff --git a/resources/js/markdown/shortcuts.js b/resources/js/markdown/shortcuts.js new file mode 100644 index 000000000..1249f7d60 --- /dev/null +++ b/resources/js/markdown/shortcuts.js @@ -0,0 +1,48 @@ +/** + * Provide shortcuts for the given codemirror instance. + * @param {MarkdownEditor} editor + * @param {String} metaKey + * @returns {Object} + */ +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('

', '

'); + shortcuts[`${metaKey}-P`] = cm => editor.actions.replaceLineStart('-') + shortcuts[`${metaKey}-O`] = cm => editor.actions.replaceLineStartForOrderedList() + + return shortcuts; +} \ No newline at end of file diff --git a/resources/views/pages/parts/markdown-editor.blade.php b/resources/views/pages/parts/markdown-editor.blade.php index 39d628e17..1577be052 100644 --- a/resources/views/pages/parts/markdown-editor.blade.php +++ b/resources/views/pages/parts/markdown-editor.blade.php @@ -23,6 +23,7 @@
@@ -34,7 +35,10 @@
{{ trans('entities.pages_md_preview') }}
- +