BookStack/resources/assets/js/pages/page-form.js
Dan Brown 212f924ffa
Refactored WYSIWYG editor image upload code
Added sketchy timeout to fix images being pasted at end of page.
Fixes #489
2017-09-20 20:27:00 +01:00

384 lines
15 KiB
JavaScript

"use strict";
const Code = require('../code');
/**
* Handle pasting images from clipboard.
* @param {ClipboardEvent} event
* @param editor
*/
function editorPaste(event, editor) {
if (!event.clipboardData || !event.clipboardData.items) return;
let items = event.clipboardData.items;
for (let i = 0; i < items.length; i++) {
if (items[i].type.indexOf("image") === -1) continue;
event.preventDefault();
let id = "image-" + Math.random().toString(16).slice(2);
let loadingImage = window.baseUrl('/loading.gif');
let file = items[i].getAsFile();
setTimeout(() => {
editor.insertContent(`<p><img src="${loadingImage}" id="${id}"></p>`);
uploadImageFile(file).then(resp => {
editor.dom.setAttrib(id, 'src', resp.thumbs.display);
}).catch(err => {
editor.dom.remove(id);
window.$events.emit('error', trans('errors.image_upload_error'));
console.log(err);
});
}, 10);
}
}
/**
* Upload an image file to the server
* @param {File} file
*/
function uploadImageFile(file) {
if (file === null || file.type.indexOf('image') !== 0) return Promise.reject(`Not an image file`);
let ext = 'png';
if (file.name) {
let fileNameMatches = file.name.match(/\.(.+)$/);
if (fileNameMatches.length > 1) ext = fileNameMatches[1];
}
let remoteFilename = "image-" + Date.now() + "." + ext;
let formData = new FormData();
formData.append('file', file, remoteFilename);
return window.$http.post('/images/gallery/upload', formData).then(resp => (resp.data));
}
function registerEditorShortcuts(editor) {
// Headers
for (let i = 1; i < 5; i++) {
editor.shortcuts.add('meta+' + i, '', ['FormatBlock', false, 'h' + (i+1)]);
}
// Other block shortcuts
editor.shortcuts.add('meta+5', '', ['FormatBlock', false, 'p']);
editor.shortcuts.add('meta+d', '', ['FormatBlock', false, 'p']);
editor.shortcuts.add('meta+6', '', ['FormatBlock', false, 'blockquote']);
editor.shortcuts.add('meta+q', '', ['FormatBlock', false, 'blockquote']);
editor.shortcuts.add('meta+7', '', ['codeeditor', false, 'pre']);
editor.shortcuts.add('meta+e', '', ['codeeditor', false, 'pre']);
editor.shortcuts.add('meta+8', '', ['FormatBlock', false, 'code']);
editor.shortcuts.add('meta+shift+E', '', ['FormatBlock', false, 'code']);
// Loop through callout styles
editor.shortcuts.add('meta+9', '', function() {
let selectedNode = editor.selection.getNode();
let formats = ['info', 'success', 'warning', 'danger'];
if (!selectedNode || selectedNode.className.indexOf('callout') === -1) {
editor.formatter.apply('calloutinfo');
return;
}
for (let i = 0; i < formats.length; i++) {
if (selectedNode.className.indexOf(formats[i]) === -1) continue;
let newFormat = (i === formats.length -1) ? formats[0] : formats[i+1];
editor.formatter.apply('callout' + newFormat);
return;
}
editor.formatter.apply('p');
});
}
/**
* Create and enable our custom code plugin
*/
function codePlugin() {
function elemIsCodeBlock(elem) {
return elem.className === 'CodeMirrorContainer';
}
function showPopup(editor) {
let selectedNode = editor.selection.getNode();
if (!elemIsCodeBlock(selectedNode)) {
let providedCode = editor.selection.getNode().textContent;
window.vues['code-editor'].open(providedCode, '', (code, lang) => {
let wrap = document.createElement('div');
wrap.innerHTML = `<pre><code class="language-${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) {
let textArea = $codeMirrorContainer[0].querySelector('textarea');
let code = textArea.textContent;
let lang = $codeMirrorContainer[0].getAttribute('data-lang');
$codeMirrorContainer.removeAttr('contentEditable');
let $pre = $('<pre></pre>');
$pre.append($('<code></code>').each((index, elem) => {
// Needs to be textContent since innerText produces BR:s
elem.textContent = code;
}).attr('class', `language-${lang}`));
$codeMirrorContainer.replaceWith($pre);
}
window.tinymce.PluginManager.add('codeeditor', function(editor, url) {
let $ = 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) => {
let $elem = $(elem);
codeMirrorContainerToPre($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));
});
let 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 hrPlugin() {
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'
});
});
}
module.exports = function() {
hrPlugin();
codePlugin();
let settings = {
selector: '#html-editor',
content_css: [
window.baseUrl('/css/styles.css'),
window.baseUrl('/libs/material-design-iconic-font/css/material-design-iconic-font.min.css')
],
branding: false,
body_class: 'page-content',
browser_spellcheck: true,
relative_urls: false,
remove_script_host: false,
document_base_url: window.baseUrl('/'),
statusbar: false,
menubar: false,
paste_data_images: false,
extended_valid_elements: 'pre[*]',
automatic_uploads: false,
valid_children: "-div[p|h1|h2|h3|h4|h5|h6|blockquote],+div[pre]",
plugins: "image table textcolor paste link autolink fullscreen imagetools code customhr autosave lists codeeditor",
imagetools_toolbar: 'imageoptions',
toolbar: "undo redo | styleselect | bold italic underline strikethrough superscript subscript | forecolor backcolor | alignleft aligncenter alignright alignjustify | bullist numlist outdent indent | table image-insert link hr | removeformat code fullscreen",
content_style: "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,
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) {
let originalField = win.document.getElementById(field_name);
originalField.value = entity.link;
$(originalField).closest('.mce-form').find('input').eq(2).val(entity.name);
});
}
if (type === 'image') {
// Show image manager
window.ImageManager.show(function (image) {
// Set popover link input to image url then fire change event
// to ensure the new value sticks
win.document.getElementById(field_name).value = image.url;
if ("createEvent" in document) {
let evt = document.createEvent("HTMLEvents");
evt.initEvent("change", false, true);
win.document.getElementById(field_name).dispatchEvent(evt);
} else {
win.document.getElementById(field_name).fireEvent("onchange");
}
// Replace the actively selected content with the linked image
let html = `<a href="${image.url}" target="_blank">`;
html += `<img src="${image.thumbs.display}" alt="${image.name}">`;
html += '</a>';
win.tinyMCE.activeEditor.execCommand('mceInsertContent', false, html);
});
}
},
paste_preprocess: function (plugin, args) {
let content = args.content;
if (content.indexOf('<img src="file://') !== -1) {
args.content = '';
}
},
extraSetups: [],
setup: function (editor) {
// Run additional setup actions
// Used by the angular side of things
for (let i = 0; i < settings.extraSetups.length; i++) {
settings.extraSetups[i](editor);
}
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);
});
}
});
// Paste image-uploads
editor.on('paste', event => { editorPaste(event, editor) });
}
};
return settings;
};