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11b4827791
And shrink the height of Dropzone.
188 lines
5.7 KiB
JavaScript
188 lines
5.7 KiB
JavaScript
import attachTribute from '../tribute.js';
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const {appSubUrl} = window.config;
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function loadScript(url) {
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return new Promise((resolve, reject) => {
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const script = document.createElement('script');
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script.async = true;
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script.addEventListener('load', () => {
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resolve();
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});
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script.addEventListener('error', (e) => {
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reject(e.error);
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});
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script.src = url;
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document.body.appendChild(script);
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});
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}
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/**
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* @returns {EasyMDE}
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*/
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export async function importEasyMDE() {
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// for CodeMirror: the plugins should be loaded dynamically
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// https://github.com/codemirror/CodeMirror/issues/5484
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// https://github.com/codemirror/CodeMirror/issues/4838
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// EasyMDE's CSS should be loaded via webpack config, otherwise our own styles can not overwrite the default styles.
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const [{default: EasyMDE}, {default: CodeMirror}] = await Promise.all([
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import(/* webpackChunkName: "easymde" */'easymde'),
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import(/* webpackChunkName: "codemirror" */'codemirror'),
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]);
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// CodeMirror plugins must be loaded by a "Plain browser env"
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window.CodeMirror = CodeMirror;
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await Promise.all([
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loadScript(`${appSubUrl}/assets/vendor/plugins/codemirror/addon/mode/loadmode.js`),
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loadScript(`${appSubUrl}/assets/vendor/plugins/codemirror/mode/meta.js`),
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]);
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// the loadmode.js/meta.js would set the modeURL/modeInfo properties, so we check it to make sure our loading works
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if (!CodeMirror.modeURL || !CodeMirror.modeInfo) {
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throw new Error('failed to load plugins for CodeMirror');
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}
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CodeMirror.modeURL = `${appSubUrl}/assets/vendor/plugins/codemirror/mode/%N/%N.js`;
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return EasyMDE;
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}
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/**
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* create an EasyMDE editor for comment
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* @param textarea jQuery or HTMLElement
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* @param easyMDEOptions the options for EasyMDE
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* @returns {null|EasyMDE}
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*/
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export async function createCommentEasyMDE(textarea, easyMDEOptions = {}) {
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if (textarea instanceof jQuery) {
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textarea = textarea[0];
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}
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if (!textarea) {
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return null;
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}
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const EasyMDE = await importEasyMDE();
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const easyMDE = new EasyMDE({
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autoDownloadFontAwesome: false,
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element: textarea,
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forceSync: true,
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renderingConfig: {
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singleLineBreaks: false,
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},
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indentWithTabs: false,
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tabSize: 4,
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spellChecker: false,
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toolbar: ['bold', 'italic', 'strikethrough', '|',
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'heading-1', 'heading-2', 'heading-3', 'heading-bigger', 'heading-smaller', '|',
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'code', 'quote', '|', {
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name: 'checkbox-empty',
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action(e) {
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const cm = e.codemirror;
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cm.replaceSelection(`\n- [ ] ${cm.getSelection()}`);
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cm.focus();
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},
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className: 'fa fa-square-o',
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title: 'Add Checkbox (empty)',
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},
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{
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name: 'checkbox-checked',
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action(e) {
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const cm = e.codemirror;
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cm.replaceSelection(`\n- [x] ${cm.getSelection()}`);
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cm.focus();
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},
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className: 'fa fa-check-square-o',
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title: 'Add Checkbox (checked)',
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}, '|',
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'unordered-list', 'ordered-list', '|',
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'link', 'image', 'table', 'horizontal-rule', '|',
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'clean-block', '|',
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{
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name: 'revert-to-textarea',
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action(e) {
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e.toTextArea();
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},
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className: 'fa fa-file',
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title: 'Revert to simple textarea',
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},
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], ...easyMDEOptions});
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const inputField = easyMDE.codemirror.getInputField();
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inputField.classList.add('js-quick-submit');
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easyMDE.codemirror.setOption('extraKeys', {
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Enter: () => {
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const tributeContainer = document.querySelector('.tribute-container');
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if (!tributeContainer || tributeContainer.style.display === 'none') {
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return window.CodeMirror.Pass;
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}
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},
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Backspace: (cm) => {
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if (cm.getInputField().trigger) {
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cm.getInputField().trigger('input');
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}
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cm.execCommand('delCharBefore');
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},
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});
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attachTribute(inputField, {mentions: true, emoji: true});
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attachEasyMDEToElements(easyMDE);
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return easyMDE;
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}
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/**
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* attach the EasyMDE object to its input elements (InputField, TextArea)
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* @param {EasyMDE} easyMDE
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*/
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export function attachEasyMDEToElements(easyMDE) {
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// TODO: that's the only way we can do now to attach the EasyMDE object to a HTMLElement
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// InputField is used by CodeMirror to accept user input
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const inputField = easyMDE.codemirror.getInputField();
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inputField._data_easyMDE = easyMDE;
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// TextArea is the real textarea element in the form
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const textArea = easyMDE.codemirror.getTextArea();
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textArea._data_easyMDE = easyMDE;
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}
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/**
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* get the attached EasyMDE editor created by createCommentEasyMDE
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* @param el jQuery or HTMLElement
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* @returns {null|EasyMDE}
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*/
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export function getAttachedEasyMDE(el) {
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if (el instanceof jQuery) {
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el = el[0];
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}
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if (!el) {
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return null;
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}
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return el._data_easyMDE;
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}
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/**
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* validate if the given EasyMDE textarea is is non-empty.
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* @param {jQuery} $textarea
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* @returns {boolean} returns true if validation succeeded.
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*/
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export function validateTextareaNonEmpty($textarea) {
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const $mdeInputField = $(getAttachedEasyMDE($textarea).codemirror.getInputField());
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// The original edit area HTML element is hidden and replaced by the
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// SimpleMDE/EasyMDE editor, breaking HTML5 input validation if the text area is empty.
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// This is a workaround for this upstream bug.
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// See https://github.com/sparksuite/simplemde-markdown-editor/issues/324
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if (!$textarea.val()) {
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$mdeInputField.prop('required', true);
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const $form = $textarea.parents('form');
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if (!$form.length) {
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// this should never happen. we put a alert here in case the textarea would be forgotten to be put in a form
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alert('Require non-empty content');
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} else {
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$form[0].reportValidity();
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}
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return false;
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}
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$mdeInputField.prop('required', false);
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return true;
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}
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