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383 lines
13 KiB
383 lines
13 KiB
import '@github/markdown-toolbar-element';
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import '@github/text-expander-element';
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import $ from 'jquery';
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import {attachTribute} from '../tribute.js';
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import {hideElem, showElem, autosize} from '../../utils/dom.js';
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import {initEasyMDEImagePaste, initTextareaImagePaste} from './ImagePaste.js';
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import {initMarkupContent} from '../../markup/content.js';
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import {handleGlobalEnterQuickSubmit} from './QuickSubmit.js';
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import {attachRefIssueContextPopup} from '../contextpopup.js';
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import {emojiKeys, emojiString} from '../emoji.js';
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let elementIdCounter = 0;
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const maxExpanderMatches = 6;
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/**
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* validate if the given textarea 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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// When using EasyMDE, the original edit area HTML element is hidden, breaking HTML5 input validation.
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// The workaround (https://github.com/sparksuite/simplemde-markdown-editor/issues/324) doesn't work with contenteditable, so we just show an alert.
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if (!$textarea.val()) {
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if ($textarea.is(':visible')) {
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$textarea.prop('required', true);
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const $form = $textarea.parents('form');
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$form[0]?.reportValidity();
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} else {
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// The alert won't hurt users too much, because we are dropping the EasyMDE and the check only occurs in a few places.
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alert('Require non-empty content');
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}
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return false;
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}
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return true;
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}
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class ComboMarkdownEditor {
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constructor(container, options = {}) {
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container._giteaComboMarkdownEditor = this;
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this.options = options;
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this.container = container;
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}
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async init() {
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this.prepareEasyMDEToolbarActions();
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this.setupTab();
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this.setupDropzone();
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this.setupTextarea();
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this.setupExpander();
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if (this.userPreferredEditor === 'easymde') {
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await this.switchToEasyMDE();
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}
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}
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applyEditorHeights(el, heights) {
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if (!heights) return;
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if (heights.minHeight) el.style.minHeight = heights.minHeight;
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if (heights.height) el.style.height = heights.height;
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if (heights.maxHeight) el.style.maxHeight = heights.maxHeight;
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}
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setupTextarea() {
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this.textarea = this.container.querySelector('.markdown-text-editor');
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this.textarea._giteaComboMarkdownEditor = this;
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this.textarea.id = `_combo_markdown_editor_${String(elementIdCounter++)}`;
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this.textarea.addEventListener('input', (e) => this.options?.onContentChanged?.(this, e));
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this.applyEditorHeights(this.textarea, this.options.editorHeights);
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this.textareaAutosize = autosize(this.textarea, {viewportMarginBottom: 130});
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this.textareaMarkdownToolbar = this.container.querySelector('markdown-toolbar');
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this.textareaMarkdownToolbar.setAttribute('for', this.textarea.id);
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this.switchToEasyMDEButton = this.container.querySelector('.markdown-switch-easymde');
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this.switchToEasyMDEButton?.addEventListener('click', async (e) => {
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e.preventDefault();
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this.userPreferredEditor = 'easymde';
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await this.switchToEasyMDE();
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});
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if (this.dropzone) {
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initTextareaImagePaste(this.textarea, this.dropzone);
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}
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}
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setupExpander() {
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const expander = this.container.querySelector('text-expander');
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expander?.addEventListener('text-expander-change', ({detail: {key, provide, text}}) => {
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if (key === ':') {
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const matches = [];
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for (const name of emojiKeys) {
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if (name.includes(text)) {
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matches.push(name);
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if (matches.length >= maxExpanderMatches) break;
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}
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}
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if (!matches.length) return provide({matched: false});
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const ul = document.createElement('ul');
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ul.classList.add('suggestions');
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for (const name of matches) {
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const emoji = emojiString(name);
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const li = document.createElement('li');
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li.setAttribute('role', 'option');
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li.setAttribute('data-value', emoji);
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li.textContent = `${emoji} ${name}`;
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ul.append(li);
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}
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provide({matched: true, fragment: ul});
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} else if (key === '@') {
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const matches = [];
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for (const obj of window.config.tributeValues) {
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if (obj.key.includes(text)) {
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matches.push(obj);
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if (matches.length >= maxExpanderMatches) break;
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}
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}
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if (!matches.length) return provide({matched: false});
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const ul = document.createElement('ul');
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ul.classList.add('suggestions');
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for (const {value, name, fullname, avatar} of matches) {
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const li = document.createElement('li');
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li.setAttribute('role', 'option');
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li.setAttribute('data-value', `${key}${value}`);
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const img = document.createElement('img');
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img.src = avatar;
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li.append(img);
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const nameSpan = document.createElement('span');
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nameSpan.textContent = name;
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li.append(nameSpan);
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if (fullname && fullname.toLowerCase() !== name) {
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const fullnameSpan = document.createElement('span');
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fullnameSpan.classList.add('fullname');
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fullnameSpan.textContent = fullname;
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li.append(fullnameSpan);
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}
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ul.append(li);
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}
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provide({matched: true, fragment: ul});
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}
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});
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expander?.addEventListener('text-expander-value', ({detail}) => {
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if (detail?.item) {
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detail.value = detail.item.getAttribute('data-value');
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}
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});
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}
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setupDropzone() {
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const dropzoneParentContainer = this.container.getAttribute('data-dropzone-parent-container');
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if (dropzoneParentContainer) {
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this.dropzone = this.container.closest(this.container.getAttribute('data-dropzone-parent-container'))?.querySelector('.dropzone');
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}
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}
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setupTab() {
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const $container = $(this.container);
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const $tabMenu = $container.find('.tabular.menu');
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const $tabs = $tabMenu.find('> .item');
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// Fomantic Tab requires the "data-tab" to be globally unique.
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// So here it uses our defined "data-tab-for" and "data-tab-panel" to generate the "data-tab" attribute for Fomantic.
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const $tabEditor = $tabs.filter(`.item[data-tab-for="markdown-writer"]`);
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const $tabPreviewer = $tabs.filter(`.item[data-tab-for="markdown-previewer"]`);
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$tabEditor.attr('data-tab', `markdown-writer-${elementIdCounter}`);
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$tabPreviewer.attr('data-tab', `markdown-previewer-${elementIdCounter}`);
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const $panelEditor = $container.find('.ui.tab[data-tab-panel="markdown-writer"]');
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const $panelPreviewer = $container.find('.ui.tab[data-tab-panel="markdown-previewer"]');
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$panelEditor.attr('data-tab', `markdown-writer-${elementIdCounter}`);
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$panelPreviewer.attr('data-tab', `markdown-previewer-${elementIdCounter}`);
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elementIdCounter++;
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$tabs.tab();
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this.previewUrl = $tabPreviewer.attr('data-preview-url');
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this.previewContext = $tabPreviewer.attr('data-preview-context');
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this.previewMode = this.options.previewMode ?? 'comment';
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this.previewWiki = this.options.previewWiki ?? false;
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$tabPreviewer.on('click', () => {
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$.post(this.previewUrl, {
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_csrf: window.config.csrfToken,
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mode: this.previewMode,
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context: this.previewContext,
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text: this.value(),
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wiki: this.previewWiki,
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}, (data) => {
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$panelPreviewer.html(data);
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initMarkupContent();
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const refIssues = $panelPreviewer.find('p .ref-issue');
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attachRefIssueContextPopup(refIssues);
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});
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});
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}
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prepareEasyMDEToolbarActions() {
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this.easyMDEToolbarDefault = [
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'bold', 'italic', 'strikethrough', '|', 'heading-1', 'heading-2', 'heading-3', 'heading-bigger', 'heading-smaller', '|',
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'code', 'quote', '|', 'gitea-checkbox-empty', 'gitea-checkbox-checked', '|',
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'unordered-list', 'ordered-list', '|', 'link', 'image', 'table', 'horizontal-rule', '|', 'clean-block', '|',
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'gitea-switch-to-textarea',
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];
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this.easyMDEToolbarActions = {
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'gitea-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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'gitea-checkbox-checked': {
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action(e) {
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const cm = e.codemirror;
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cm.replaceSelection(`\n- [x] ${cm.getSelection()}`);
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cm.focus();
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},
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className: 'fa fa-check-square-o',
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title: 'Add Checkbox (checked)',
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},
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'gitea-switch-to-textarea': {
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action: () => {
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this.userPreferredEditor = 'textarea';
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this.switchToTextarea();
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},
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className: 'fa fa-file',
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title: 'Revert to simple textarea',
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},
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'gitea-code-inline': {
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action(e) {
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const cm = e.codemirror;
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const selection = cm.getSelection();
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cm.replaceSelection(`\`${selection}\``);
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if (!selection) {
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const cursorPos = cm.getCursor();
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cm.setCursor(cursorPos.line, cursorPos.ch - 1);
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}
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cm.focus();
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},
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className: 'fa fa-angle-right',
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title: 'Add Inline Code',
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}
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};
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}
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parseEasyMDEToolbar(actions) {
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const processed = [];
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for (const action of actions) {
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if (action.startsWith('gitea-')) {
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const giteaAction = this.easyMDEToolbarActions[action];
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if (!giteaAction) throw new Error(`Unknown EasyMDE toolbar action ${action}`);
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processed.push(giteaAction);
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} else {
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processed.push(action);
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}
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}
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return processed;
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}
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switchToTextarea() {
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showElem(this.textareaMarkdownToolbar);
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if (this.easyMDE) {
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this.easyMDE.toTextArea();
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this.easyMDE = null;
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}
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}
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async switchToEasyMDE() {
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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} = await import(/* webpackChunkName: "easymde" */'easymde');
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const easyMDEOpt = {
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autoDownloadFontAwesome: false,
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element: this.textarea,
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forceSync: true,
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renderingConfig: {singleLineBreaks: false},
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indentWithTabs: false,
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tabSize: 4,
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spellChecker: false,
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inputStyle: 'contenteditable', // nativeSpellcheck requires contenteditable
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nativeSpellcheck: true,
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...this.options.easyMDEOptions,
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};
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easyMDEOpt.toolbar = this.parseEasyMDEToolbar(easyMDEOpt.toolbar ?? this.easyMDEToolbarDefault);
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this.easyMDE = new EasyMDE(easyMDEOpt);
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this.easyMDE.codemirror.on('change', (...args) => {this.options?.onContentChanged?.(this, ...args)});
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this.easyMDE.codemirror.setOption('extraKeys', {
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'Cmd-Enter': (cm) => handleGlobalEnterQuickSubmit(cm.getTextArea()),
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'Ctrl-Enter': (cm) => handleGlobalEnterQuickSubmit(cm.getTextArea()),
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Enter: (cm) => {
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const tributeContainer = document.querySelector('.tribute-container');
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if (!tributeContainer || tributeContainer.style.display === 'none') {
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cm.execCommand('newlineAndIndent');
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}
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},
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Up: (cm) => {
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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 cm.execCommand('goLineUp');
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}
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},
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Down: (cm) => {
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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 cm.execCommand('goLineDown');
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}
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},
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});
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this.applyEditorHeights(this.container.querySelector('.CodeMirror-scroll'), this.options.editorHeights);
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await attachTribute(this.easyMDE.codemirror.getInputField(), {mentions: true, emoji: true});
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initEasyMDEImagePaste(this.easyMDE, this.dropzone);
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hideElem(this.textareaMarkdownToolbar);
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}
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value(v = undefined) {
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if (v === undefined) {
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if (this.easyMDE) {
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return this.easyMDE.value();
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}
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return this.textarea.value;
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}
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if (this.easyMDE) {
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this.easyMDE.value(v);
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} else {
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this.textarea.value = v;
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}
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this.textareaAutosize.resizeToFit();
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}
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focus() {
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if (this.easyMDE) {
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this.easyMDE.codemirror.focus();
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} else {
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this.textarea.focus();
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}
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}
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moveCursorToEnd() {
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this.textarea.focus();
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this.textarea.setSelectionRange(this.textarea.value.length, this.textarea.value.length);
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if (this.easyMDE) {
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this.easyMDE.codemirror.focus();
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this.easyMDE.codemirror.setCursor(this.easyMDE.codemirror.lineCount(), 0);
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}
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}
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get userPreferredEditor() {
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return window.localStorage.getItem(`markdown-editor-${this.options.useScene ?? 'default'}`);
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}
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set userPreferredEditor(s) {
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window.localStorage.setItem(`markdown-editor-${this.options.useScene ?? 'default'}`, s);
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}
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}
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export function getComboMarkdownEditor(el) {
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if (el instanceof $) el = el[0];
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return el?._giteaComboMarkdownEditor;
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}
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export async function initComboMarkdownEditor(container, options = {}) {
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if (container instanceof $) {
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if (container.length !== 1) {
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throw new Error('initComboMarkdownEditor: container must be a single element');
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}
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container = container[0];
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}
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if (!container) {
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throw new Error('initComboMarkdownEditor: container is null');
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}
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const editor = new ComboMarkdownEditor(container, options);
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await editor.init();
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return editor;
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}
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