BookStack/resources/assets/js/components/wysiwyg-editor.js

652 lines
25 KiB
JavaScript

import Code from "../services/code";
import DrawIO from "../services/drawio";
/**
* Handle pasting images from clipboard.
* @param {ClipboardEvent} event
* @param {WysiwygEditor} wysiwygComponent
* @param editor
*/
function editorPaste(event, editor, wysiwygComponent) {
const clipboardItems = event.clipboardData.items;
if (!event.clipboardData || !clipboardItems) return;
// Don't handle if clipboard includes text content
for (let clipboardItem of clipboardItems) {
if (clipboardItem.type.includes('text/')) {
return;
}
}
for (let clipboardItem of clipboardItems) {
if (!clipboardItem.type.includes("image")) {
continue;
}
const id = "image-" + Math.random().toString(16).slice(2);
const loadingImage = window.baseUrl('/loading.gif');
const file = clipboardItem.getAsFile();
setTimeout(() => {
editor.insertContent(`<p><img src="${loadingImage}" id="${id}"></p>`);
uploadImageFile(file, wysiwygComponent).then(resp => {
editor.dom.setAttrib(id, 'src', resp.thumbs.display);
}).catch(err => {
editor.dom.remove(id);
window.$events.emit('error', trans('errors.image_upload_error'));
console.log(err);
});
}, 10);
}
}
/**
* Upload an image file to the server
* @param {File} file
* @param {WysiwygEditor} wysiwygComponent
*/
async function uploadImageFile(file, wysiwygComponent) {
if (file === null || file.type.indexOf('image') !== 0) {
throw new Error(`Not an image file`);
}
let ext = 'png';
if (file.name) {
let fileNameMatches = file.name.match(/\.(.+)$/);
if (fileNameMatches.length > 1) ext = fileNameMatches[1];
}
const remoteFilename = "image-" + Date.now() + "." + ext;
const formData = new FormData();
formData.append('file', file, remoteFilename);
formData.append('uploaded_to', wysiwygComponent.pageId);
const resp = await window.$http.post(window.baseUrl('/images/gallery'), formData);
return resp.data;
}
function registerEditorShortcuts(editor) {
// Headers
for (let i = 1; i < 5; i++) {
editor.shortcuts.add('meta+' + i, '', ['FormatBlock', false, 'h' + (i+1)]);
}
// Other block shortcuts
editor.shortcuts.add('meta+5', '', ['FormatBlock', false, 'p']);
editor.shortcuts.add('meta+d', '', ['FormatBlock', false, 'p']);
editor.shortcuts.add('meta+6', '', ['FormatBlock', false, 'blockquote']);
editor.shortcuts.add('meta+q', '', ['FormatBlock', false, 'blockquote']);
editor.shortcuts.add('meta+7', '', ['codeeditor', false, 'pre']);
editor.shortcuts.add('meta+e', '', ['codeeditor', false, 'pre']);
editor.shortcuts.add('meta+8', '', ['FormatBlock', false, 'code']);
editor.shortcuts.add('meta+shift+E', '', ['FormatBlock', false, 'code']);
// Save draft shortcut
editor.shortcuts.add('meta+S', '', () => {
window.$events.emit('editor-save-draft');
});
// Save page shortcut
editor.shortcuts.add('meta+13', '', () => {
window.$events.emit('editor-save-page');
});
// Loop through callout styles
editor.shortcuts.add('meta+9', '', function() {
let selectedNode = editor.selection.getNode();
let formats = ['info', 'success', 'warning', 'danger'];
if (!selectedNode || selectedNode.className.indexOf('callout') === -1) {
editor.formatter.apply('calloutinfo');
return;
}
for (let i = 0; i < formats.length; i++) {
if (selectedNode.className.indexOf(formats[i]) === -1) continue;
let newFormat = (i === formats.length -1) ? formats[0] : formats[i+1];
editor.formatter.apply('callout' + newFormat);
return;
}
editor.formatter.apply('p');
});
}
/**
* Load custom HTML head content from the settings into the editor.
* @param editor
*/
function loadCustomHeadContent(editor) {
window.$http.get(window.baseUrl('/custom-head-content')).then(resp => {
if (!resp.data) return;
let head = editor.getDoc().querySelector('head');
head.innerHTML += resp.data;
});
}
/**
* Create and enable our custom code plugin
*/
function codePlugin() {
function elemIsCodeBlock(elem) {
return elem.className === 'CodeMirrorContainer';
}
function showPopup(editor) {
let selectedNode = editor.selection.getNode();
if (!elemIsCodeBlock(selectedNode)) {
let providedCode = editor.selection.getNode().textContent;
window.vues['code-editor'].open(providedCode, '', (code, lang) => {
let wrap = document.createElement('div');
wrap.innerHTML = `<pre><code class="language-${lang}"></code></pre>`;
wrap.querySelector('code').innerText = code;
editor.formatter.toggle('pre');
let node = editor.selection.getNode();
editor.dom.setHTML(node, wrap.querySelector('pre').innerHTML);
editor.fire('SetContent');
});
return;
}
let lang = selectedNode.hasAttribute('data-lang') ? selectedNode.getAttribute('data-lang') : '';
let currentCode = selectedNode.querySelector('textarea').textContent;
window.vues['code-editor'].open(currentCode, lang, (code, lang) => {
let editorElem = selectedNode.querySelector('.CodeMirror');
let cmInstance = editorElem.CodeMirror;
if (cmInstance) {
Code.setContent(cmInstance, code);
Code.setMode(cmInstance, lang);
}
let textArea = selectedNode.querySelector('textarea');
if (textArea) textArea.textContent = code;
selectedNode.setAttribute('data-lang', lang);
});
}
function codeMirrorContainerToPre(codeMirrorContainer) {
const textArea = codeMirrorContainer.querySelector('textarea');
const code = textArea.textContent;
const lang = codeMirrorContainer.getAttribute('data-lang');
codeMirrorContainer.removeAttribute('contentEditable');
const pre = document.createElement('pre');
const codeElem = document.createElement('code');
codeElem.classList.add(`language-${lang}`);
codeElem.textContent = code;
pre.appendChild(codeElem);
codeMirrorContainer.parentElement.replaceChild(pre, codeMirrorContainer);
}
window.tinymce.PluginManager.add('codeeditor', function(editor, url) {
const $ = editor.$;
editor.addButton('codeeditor', {
text: 'Code block',
icon: false,
cmd: 'codeeditor'
});
editor.addCommand('codeeditor', () => {
showPopup(editor);
});
// Convert
editor.on('PreProcess', function (e) {
$('div.CodeMirrorContainer', e.node).each((index, elem) => {
codeMirrorContainerToPre(elem);
});
});
editor.on('dblclick', event => {
let selectedNode = editor.selection.getNode();
if (!elemIsCodeBlock(selectedNode)) return;
showPopup(editor);
});
editor.on('SetContent', function () {
// Recover broken codemirror instances
$('.CodeMirrorContainer').filter((index ,elem) => {
return typeof elem.querySelector('.CodeMirror').CodeMirror === 'undefined';
}).each((index, elem) => {
codeMirrorContainerToPre(elem);
});
const codeSamples = $('body > pre').filter((index, elem) => {
return elem.contentEditable !== "false";
});
if (!codeSamples.length) return;
editor.undoManager.transact(function () {
codeSamples.each((index, elem) => {
Code.wysiwygView(elem);
});
});
});
});
}
function drawIoPlugin() {
let pageEditor = null;
let currentNode = null;
function isDrawing(node) {
return node.hasAttribute('drawio-diagram');
}
function showDrawingManager(mceEditor, selectedNode = null) {
pageEditor = mceEditor;
currentNode = selectedNode;
// Show image manager
window.ImageManager.show(function (image) {
if (selectedNode) {
let imgElem = selectedNode.querySelector('img');
pageEditor.dom.setAttrib(imgElem, 'src', image.url);
pageEditor.dom.setAttrib(selectedNode, 'drawio-diagram', image.id);
} else {
let imgHTML = `<div drawio-diagram="${image.id}" contenteditable="false"><img src="${image.url}"></div>`;
pageEditor.insertContent(imgHTML);
}
}, 'drawio');
}
function showDrawingEditor(mceEditor, selectedNode = null) {
pageEditor = mceEditor;
currentNode = selectedNode;
DrawIO.show(drawingInit, updateContent);
}
async function updateContent(pngData) {
const id = "image-" + Math.random().toString(16).slice(2);
const loadingImage = window.baseUrl('/loading.gif');
const pageId = Number(document.getElementById('page-editor').getAttribute('page-id'));
// Handle updating an existing image
if (currentNode) {
DrawIO.close();
let imgElem = currentNode.querySelector('img');
try {
const img = await DrawIO.upload(pngData, pageId);
pageEditor.dom.setAttrib(imgElem, 'src', img.url);
pageEditor.dom.setAttrib(currentNode, 'drawio-diagram', img.id);
} catch (err) {
window.$events.emit('error', trans('errors.image_upload_error'));
console.log(err);
}
return;
}
setTimeout(async () => {
pageEditor.insertContent(`<div drawio-diagram contenteditable="false"><img src="${loadingImage}" id="${id}"></div>`);
DrawIO.close();
try {
const img = await DrawIO.upload(pngData, pageId);
pageEditor.dom.setAttrib(id, 'src', img.url);
pageEditor.dom.get(id).parentNode.setAttribute('drawio-diagram', img.id);
} catch (err) {
pageEditor.dom.remove(id);
window.$events.emit('error', trans('errors.image_upload_error'));
console.log(err);
}
}, 5);
}
function drawingInit() {
if (!currentNode) {
return Promise.resolve('');
}
let drawingId = currentNode.getAttribute('drawio-diagram');
return DrawIO.load(drawingId);
}
window.tinymce.PluginManager.add('drawio', function(editor, url) {
editor.addCommand('drawio', () => {
let selectedNode = editor.selection.getNode();
showDrawingEditor(editor, isDrawing(selectedNode) ? selectedNode : null);
});
editor.addButton('drawio', {
type: 'splitbutton',
tooltip: 'Drawing',
image: `data:image/svg+xml;base64,PHN2ZyB2aWV3Qm94PSIwIDAgMjQgMjQiIGZpbGw9IiMwMDAwMDAiICB4bWxucz0iaHR0cDovL3d3 dy53My5vcmcvMjAwMC9zdmciPgogICAgPHBhdGggZD0iTTIzIDdWMWgtNnYySDdWMUgxdjZoMnYx MEgxdjZoNnYtMmgxMHYyaDZ2LTZoLTJWN2gyek0zIDNoMnYySDNWM3ptMiAxOEgzdi0yaDJ2Mnpt MTItMkg3di0ySDVWN2gyVjVoMTB2MmgydjEwaC0ydjJ6bTQgMmgtMnYtMmgydjJ6TTE5IDVWM2gy djJoLTJ6bS01LjI3IDloLTMuNDlsLS43MyAySDcuODlsMy40LTloMS40bDMuNDEgOWgtMS42M2wt Ljc0LTJ6bS0zLjA0LTEuMjZoMi42MUwxMiA4LjkxbC0xLjMxIDMuODN6Ii8+CiAgICA8cGF0aCBk PSJNMCAwaDI0djI0SDB6IiBmaWxsPSJub25lIi8+Cjwvc3ZnPg==`,
cmd: 'drawio',
menu: [
{
text: 'Drawing Manager',
onclick() {
let selectedNode = editor.selection.getNode();
showDrawingManager(editor, isDrawing(selectedNode) ? selectedNode : null);
}
}
]
});
editor.on('dblclick', event => {
let selectedNode = editor.selection.getNode();
if (!isDrawing(selectedNode)) return;
showDrawingEditor(editor, selectedNode);
});
editor.on('SetContent', function () {
const drawings = editor.$('body > div[drawio-diagram]');
if (!drawings.length) return;
editor.undoManager.transact(function () {
drawings.each((index, elem) => {
elem.setAttribute('contenteditable', 'false');
});
});
});
});
}
function customHrPlugin() {
window.tinymce.PluginManager.add('customhr', function (editor) {
editor.addCommand('InsertHorizontalRule', function () {
let hrElem = document.createElement('hr');
let cNode = editor.selection.getNode();
let parentNode = cNode.parentNode;
parentNode.insertBefore(hrElem, cNode);
});
editor.addButton('hr', {
icon: 'hr',
tooltip: 'Horizontal line',
cmd: 'InsertHorizontalRule'
});
editor.addMenuItem('hr', {
icon: 'hr',
text: 'Horizontal line',
cmd: 'InsertHorizontalRule',
context: 'insert'
});
});
}
function listenForBookStackEditorEvents(editor) {
// Replace editor content
window.$events.listen('editor::replace', ({html}) => {
editor.setContent(html);
});
// Append editor content
window.$events.listen('editor::append', ({html}) => {
const content = editor.getContent() + html;
editor.setContent(content);
});
// Prepend editor content
window.$events.listen('editor::prepend', ({html}) => {
const content = html + editor.getContent();
editor.setContent(content);
});
}
class WysiwygEditor {
constructor(elem) {
this.elem = elem;
const pageEditor = document.getElementById('page-editor');
this.pageId = pageEditor.getAttribute('page-id');
this.textDirection = pageEditor.getAttribute('text-direction');
this.plugins = "image table textcolor paste link autolink fullscreen imagetools code customhr autosave lists codeeditor media";
this.loadPlugins();
this.tinyMceConfig = this.getTinyMceConfig();
window.tinymce.init(this.tinyMceConfig);
}
loadPlugins() {
codePlugin();
customHrPlugin();
if (document.querySelector('[drawio-enabled]').getAttribute('drawio-enabled') === 'true') {
drawIoPlugin();
this.plugins += ' drawio';
}
if (this.textDirection === 'rtl') {
this.plugins += ' directionality'
}
}
getToolBar() {
const textDirPlugins = this.textDirection === 'rtl' ? 'ltr rtl' : '';
return `undo redo | styleselect | bold italic underline strikethrough superscript subscript | forecolor backcolor | alignleft aligncenter alignright alignjustify | bullist numlist outdent indent | table image-insert link hr drawio media | removeformat code ${textDirPlugins} fullscreen`
}
getTinyMceConfig() {
const context = this;
return {
selector: '#html-editor',
content_css: [
window.baseUrl('/dist/styles.css'),
],
branding: false,
body_class: 'page-content',
browser_spellcheck: true,
relative_urls: false,
directionality : this.textDirection,
remove_script_host: false,
document_base_url: window.baseUrl('/'),
end_container_on_empty_block: true,
statusbar: false,
menubar: false,
paste_data_images: false,
extended_valid_elements: 'pre[*],svg[*],div[drawio-diagram]',
automatic_uploads: false,
valid_children: "-div[p|h1|h2|h3|h4|h5|h6|blockquote],+div[pre],+div[img]",
plugins: this.plugins,
imagetools_toolbar: 'imageoptions',
toolbar: this.getToolBar(),
content_style: "html, body {background: #FFF;} body {padding-left: 15px !important; padding-right: 15px !important; margin:0!important; margin-left:auto!important;margin-right:auto!important;}",
style_formats: [
{title: "Header Large", format: "h2"},
{title: "Header Medium", format: "h3"},
{title: "Header Small", format: "h4"},
{title: "Header Tiny", format: "h5"},
{title: "Paragraph", format: "p", exact: true, classes: ''},
{title: "Blockquote", format: "blockquote"},
{title: "Code Block", icon: "code", cmd: 'codeeditor', format: 'codeeditor'},
{title: "Inline Code", icon: "code", inline: "code"},
{title: "Callouts", items: [
{title: "Info", format: 'calloutinfo'},
{title: "Success", format: 'calloutsuccess'},
{title: "Warning", format: 'calloutwarning'},
{title: "Danger", format: 'calloutdanger'}
]},
],
style_formats_merge: false,
media_alt_source: false,
media_poster: false,
formats: {
codeeditor: {selector: 'p,h1,h2,h3,h4,h5,h6,td,th,div'},
alignleft: {selector: 'p,h1,h2,h3,h4,h5,h6,td,th,div,ul,ol,li,table,img', classes: 'align-left'},
aligncenter: {selector: 'p,h1,h2,h3,h4,h5,h6,td,th,div,ul,ol,li,table,img', classes: 'align-center'},
alignright: {selector: 'p,h1,h2,h3,h4,h5,h6,td,th,div,ul,ol,li,table,img', classes: 'align-right'},
calloutsuccess: {block: 'p', exact: true, attributes: {class: 'callout success'}},
calloutinfo: {block: 'p', exact: true, attributes: {class: 'callout info'}},
calloutwarning: {block: 'p', exact: true, attributes: {class: 'callout warning'}},
calloutdanger: {block: 'p', exact: true, attributes: {class: 'callout danger'}}
},
file_browser_callback: function (field_name, url, type, win) {
if (type === 'file') {
window.EntitySelectorPopup.show(function(entity) {
const originalField = win.document.getElementById(field_name);
originalField.value = entity.link;
const mceForm = originalField.closest('.mce-form');
mceForm.querySelectorAll('input')[2].value = entity.name;
});
}
if (type === 'image') {
// Show image manager
window.ImageManager.show(function (image) {
// Set popover link input to image url then fire change event
// to ensure the new value sticks
win.document.getElementById(field_name).value = image.url;
if ("createEvent" in document) {
let evt = document.createEvent("HTMLEvents");
evt.initEvent("change", false, true);
win.document.getElementById(field_name).dispatchEvent(evt);
} else {
win.document.getElementById(field_name).fireEvent("onchange");
}
// Replace the actively selected content with the linked image
let html = `<a href="${image.url}" target="_blank">`;
html += `<img src="${image.thumbs.display}" alt="${image.name}">`;
html += '</a>';
win.tinyMCE.activeEditor.execCommand('mceInsertContent', false, html);
}, 'gallery');
}
},
paste_preprocess: function (plugin, args) {
let content = args.content;
if (content.indexOf('<img src="file://') !== -1) {
args.content = '';
}
},
init_instance_callback: function(editor) {
loadCustomHeadContent(editor);
},
setup: function (editor) {
editor.on('ExecCommand change input NodeChange ObjectResized', editorChange);
editor.on('init', () => {
editorChange();
// Scroll to the content if needed.
const queryParams = (new URL(window.location)).searchParams;
const scrollId = queryParams.get('content-id');
if (scrollId) {
scrollToText(scrollId);
}
// Override for touch events to allow scroll on mobile
const container = editor.getContainer();
const toolbarButtons = container.querySelectorAll('.mce-btn');
for (let button of toolbarButtons) {
button.addEventListener('touchstart', event => {
event.stopPropagation();
});
}
window.editor = editor;
});
function editorChange() {
let content = editor.getContent();
window.$events.emit('editor-html-change', content);
}
function scrollToText(scrollId) {
const element = editor.dom.get(encodeURIComponent(scrollId).replace(/!/g, '%21'));
if (!element) {
return;
}
// scroll the element into the view and put the cursor at the end.
element.scrollIntoView();
editor.selection.select(element, true);
editor.selection.collapse(false);
editor.focus();
}
listenForBookStackEditorEvents(editor);
// TODO - Update to standardise across both editors
// Use events within listenForBookStackEditorEvents instead (Different event signature)
window.$events.listen('editor-html-update', html => {
editor.setContent(html);
editor.selection.select(editor.getBody(), true);
editor.selection.collapse(false);
editorChange(html);
});
registerEditorShortcuts(editor);
let wrap;
function hasTextContent(node) {
return node && !!( node.textContent || node.innerText );
}
editor.on('dragstart', function () {
let node = editor.selection.getNode();
if (node.nodeName !== 'IMG') return;
wrap = editor.dom.getParent(node, '.mceTemp');
if (!wrap && node.parentNode.nodeName === 'A' && !hasTextContent(node.parentNode)) {
wrap = node.parentNode;
}
});
editor.on('drop', function (event) {
let dom = editor.dom,
rng = tinymce.dom.RangeUtils.getCaretRangeFromPoint(event.clientX, event.clientY, editor.getDoc());
// Don't allow anything to be dropped in a captioned image.
if (dom.getParent(rng.startContainer, '.mceTemp')) {
event.preventDefault();
} else if (wrap) {
event.preventDefault();
editor.undoManager.transact(function () {
editor.selection.setRng(rng);
editor.selection.setNode(wrap);
dom.remove(wrap);
});
}
wrap = null;
});
// Custom Image picker button
editor.addButton('image-insert', {
title: 'My title',
icon: 'image',
tooltip: 'Insert an image',
onclick: function () {
window.ImageManager.show(function (image) {
let html = `<a href="${image.url}" target="_blank">`;
html += `<img src="${image.thumbs.display}" alt="${image.name}">`;
html += '</a>';
editor.execCommand('mceInsertContent', false, html);
}, 'gallery');
}
});
// Paste image-uploads
editor.on('paste', event => editorPaste(event, editor, context));
}
};
}
}
export default WysiwygEditor;