import '@github/markdown-toolbar-element'; import '@github/text-expander-element'; import $ from 'jquery'; import {attachTribute} from '../tribute.js'; import {hideElem, showElem, autosize, isElemVisible} from '../../utils/dom.js'; import {initEasyMDEPaste, initTextareaPaste} from './Paste.js'; import {handleGlobalEnterQuickSubmit} from './QuickSubmit.js'; import {renderPreviewPanelContent} from '../repo-editor.js'; import {easyMDEToolbarActions} from './EasyMDEToolbarActions.js'; import {initTextExpander} from './TextExpander.js'; import {showErrorToast} from '../../modules/toast.js'; import {POST} from '../../modules/fetch.js'; let elementIdCounter = 0; /** * validate if the given textarea is non-empty. * @param {HTMLElement} textarea - The textarea element to be validated. * @returns {boolean} returns true if validation succeeded. */ export function validateTextareaNonEmpty(textarea) { // When using EasyMDE, the original edit area HTML element is hidden, breaking HTML5 input validation. // The workaround (https://github.com/sparksuite/simplemde-markdown-editor/issues/324) doesn't work with contenteditable, so we just show an alert. if (!textarea.value) { if (isElemVisible(textarea)) { textarea.required = true; const form = textarea.closest('form'); form?.reportValidity(); } else { // The alert won't hurt users too much, because we are dropping the EasyMDE and the check only occurs in a few places. showErrorToast('Require non-empty content'); } return false; } return true; } class ComboMarkdownEditor { constructor(container, options = {}) { container._giteaComboMarkdownEditor = this; this.options = options; this.container = container; } async init() { this.prepareEasyMDEToolbarActions(); this.setupContainer(); this.setupTab(); this.setupDropzone(); this.setupTextarea(); await this.switchToUserPreference(); } applyEditorHeights(el, heights) { if (!heights) return; if (heights.minHeight) el.style.minHeight = heights.minHeight; if (heights.height) el.style.height = heights.height; if (heights.maxHeight) el.style.maxHeight = heights.maxHeight; } setupContainer() { initTextExpander(this.container.querySelector('text-expander')); this.container.addEventListener('ce-editor-content-changed', (e) => this.options?.onContentChanged?.(this, e)); } setupTextarea() { this.textarea = this.container.querySelector('.markdown-text-editor'); this.textarea._giteaComboMarkdownEditor = this; this.textarea.id = `_combo_markdown_editor_${String(elementIdCounter++)}`; this.textarea.addEventListener('input', (e) => this.options?.onContentChanged?.(this, e)); this.applyEditorHeights(this.textarea, this.options.editorHeights); if (this.textarea.getAttribute('data-disable-autosize') !== 'true') { this.textareaAutosize = autosize(this.textarea, {viewportMarginBottom: 130}); } this.textareaMarkdownToolbar = this.container.querySelector('markdown-toolbar'); this.textareaMarkdownToolbar.setAttribute('for', this.textarea.id); for (const el of this.textareaMarkdownToolbar.querySelectorAll('.markdown-toolbar-button')) { // upstream bug: The role code is never executed in base MarkdownButtonElement https://github.com/github/markdown-toolbar-element/issues/70 el.setAttribute('role', 'button'); // the editor usually is in a form, so the buttons should have "type=button", avoiding conflicting with the form's submit. if (el.nodeName === 'BUTTON' && !el.getAttribute('type')) el.setAttribute('type', 'button'); } this.textarea.addEventListener('keydown', (e) => { if (e.shiftKey) { e.target._shiftDown = true; } }); this.textarea.addEventListener('keyup', (e) => { if (!e.shiftKey) { e.target._shiftDown = false; } }); const monospaceButton = this.container.querySelector('.markdown-switch-monospace'); const monospaceEnabled = localStorage?.getItem('markdown-editor-monospace') === 'true'; const monospaceText = monospaceButton.getAttribute(monospaceEnabled ? 'data-disable-text' : 'data-enable-text'); monospaceButton.setAttribute('data-tooltip-content', monospaceText); monospaceButton.setAttribute('aria-checked', String(monospaceEnabled)); monospaceButton?.addEventListener('click', (e) => { e.preventDefault(); const enabled = localStorage?.getItem('markdown-editor-monospace') !== 'true'; localStorage.setItem('markdown-editor-monospace', String(enabled)); this.textarea.classList.toggle('gt-mono', enabled); const text = monospaceButton.getAttribute(enabled ? 'data-disable-text' : 'data-enable-text'); monospaceButton.setAttribute('data-tooltip-content', text); monospaceButton.setAttribute('aria-checked', String(enabled)); }); const easymdeButton = this.container.querySelector('.markdown-switch-easymde'); easymdeButton?.addEventListener('click', async (e) => { e.preventDefault(); this.userPreferredEditor = 'easymde'; await this.switchToEasyMDE(); }); if (this.dropzone) { initTextareaPaste(this.textarea, this.dropzone); } } setupDropzone() { const dropzoneParentContainer = this.container.getAttribute('data-dropzone-parent-container'); if (dropzoneParentContainer) { this.dropzone = this.container.closest(this.container.getAttribute('data-dropzone-parent-container'))?.querySelector('.dropzone'); } } setupTab() { const $container = $(this.container); const $tabMenu = $container.find('.tabular.menu'); const $tabs = $tabMenu.find('> .item'); // Fomantic Tab requires the "data-tab" to be globally unique. // So here it uses our defined "data-tab-for" and "data-tab-panel" to generate the "data-tab" attribute for Fomantic. const $tabEditor = $tabs.filter(`.item[data-tab-for="markdown-writer"]`); const $tabPreviewer = $tabs.filter(`.item[data-tab-for="markdown-previewer"]`); $tabEditor.attr('data-tab', `markdown-writer-${elementIdCounter}`); $tabPreviewer.attr('data-tab', `markdown-previewer-${elementIdCounter}`); const $panelEditor = $container.find('.ui.tab[data-tab-panel="markdown-writer"]'); const $panelPreviewer = $container.find('.ui.tab[data-tab-panel="markdown-previewer"]'); $panelEditor.attr('data-tab', `markdown-writer-${elementIdCounter}`); $panelPreviewer.attr('data-tab', `markdown-previewer-${elementIdCounter}`); elementIdCounter++; $tabEditor[0].addEventListener('click', () => { requestAnimationFrame(() => { this.focus(); }); }); $tabs.tab(); this.previewUrl = $tabPreviewer.attr('data-preview-url'); this.previewContext = $tabPreviewer.attr('data-preview-context'); this.previewMode = this.options.previewMode ?? 'comment'; this.previewWiki = this.options.previewWiki ?? false; $tabPreviewer.on('click', async () => { const formData = new FormData(); formData.append('mode', this.previewMode); formData.append('context', this.previewContext); formData.append('text', this.value()); formData.append('wiki', this.previewWiki); const response = await POST(this.previewUrl, {data: formData}); const data = await response.text(); renderPreviewPanelContent($panelPreviewer, data); }); } prepareEasyMDEToolbarActions() { this.easyMDEToolbarDefault = [ 'bold', 'italic', 'strikethrough', '|', 'heading-1', 'heading-2', 'heading-3', 'heading-bigger', 'heading-smaller', '|', 'code', 'quote', '|', 'gitea-checkbox-empty', 'gitea-checkbox-checked', '|', 'unordered-list', 'ordered-list', '|', 'link', 'image', 'table', 'horizontal-rule', '|', 'gitea-switch-to-textarea', ]; } parseEasyMDEToolbar(EasyMDE, actions) { this.easyMDEToolbarActions = this.easyMDEToolbarActions || easyMDEToolbarActions(EasyMDE, this); const processed = []; for (const action of actions) { const actionButton = this.easyMDEToolbarActions[action]; if (!actionButton) throw new Error(`Unknown EasyMDE toolbar action ${action}`); processed.push(actionButton); } return processed; } async switchToUserPreference() { if (this.userPreferredEditor === 'easymde') { await this.switchToEasyMDE(); } else { this.switchToTextarea(); } } switchToTextarea() { if (!this.easyMDE) return; showElem(this.textareaMarkdownToolbar); if (this.easyMDE) { this.easyMDE.toTextArea(); this.easyMDE = null; } } async switchToEasyMDE() { if (this.easyMDE) return; // EasyMDE's CSS should be loaded via webpack config, otherwise our own styles can not overwrite the default styles. const {default: EasyMDE} = await import(/* webpackChunkName: "easymde" */'easymde'); const easyMDEOpt = { autoDownloadFontAwesome: false, element: this.textarea, forceSync: true, renderingConfig: {singleLineBreaks: false}, indentWithTabs: false, tabSize: 4, spellChecker: false, inputStyle: 'contenteditable', // nativeSpellcheck requires contenteditable nativeSpellcheck: true, ...this.options.easyMDEOptions, }; easyMDEOpt.toolbar = this.parseEasyMDEToolbar(EasyMDE, easyMDEOpt.toolbar ?? this.easyMDEToolbarDefault); this.easyMDE = new EasyMDE(easyMDEOpt); this.easyMDE.codemirror.on('change', (...args) => {this.options?.onContentChanged?.(this, ...args)}); this.easyMDE.codemirror.setOption('extraKeys', { 'Cmd-Enter': (cm) => handleGlobalEnterQuickSubmit(cm.getTextArea()), 'Ctrl-Enter': (cm) => handleGlobalEnterQuickSubmit(cm.getTextArea()), Enter: (cm) => { const tributeContainer = document.querySelector('.tribute-container'); if (!tributeContainer || tributeContainer.style.display === 'none') { cm.execCommand('newlineAndIndent'); } }, Up: (cm) => { const tributeContainer = document.querySelector('.tribute-container'); if (!tributeContainer || tributeContainer.style.display === 'none') { return cm.execCommand('goLineUp'); } }, Down: (cm) => { const tributeContainer = document.querySelector('.tribute-container'); if (!tributeContainer || tributeContainer.style.display === 'none') { return cm.execCommand('goLineDown'); } }, }); this.applyEditorHeights(this.container.querySelector('.CodeMirror-scroll'), this.options.editorHeights); await attachTribute(this.easyMDE.codemirror.getInputField(), {mentions: true, emoji: true}); initEasyMDEPaste(this.easyMDE, this.dropzone); hideElem(this.textareaMarkdownToolbar); } value(v = undefined) { if (v === undefined) { if (this.easyMDE) { return this.easyMDE.value(); } return this.textarea.value; } if (this.easyMDE) { this.easyMDE.value(v); } else { this.textarea.value = v; } this.textareaAutosize?.resizeToFit(); } focus() { if (this.easyMDE) { this.easyMDE.codemirror.focus(); } else { this.textarea.focus(); } } moveCursorToEnd() { this.textarea.focus(); this.textarea.setSelectionRange(this.textarea.value.length, this.textarea.value.length); if (this.easyMDE) { this.easyMDE.codemirror.focus(); this.easyMDE.codemirror.setCursor(this.easyMDE.codemirror.lineCount(), 0); } } get userPreferredEditor() { return window.localStorage.getItem(`markdown-editor-${this.options.useScene ?? 'default'}`); } set userPreferredEditor(s) { window.localStorage.setItem(`markdown-editor-${this.options.useScene ?? 'default'}`, s); } } export function getComboMarkdownEditor(el) { if (el instanceof $) el = el[0]; return el?._giteaComboMarkdownEditor; } export async function initComboMarkdownEditor(container, options = {}) { if (container instanceof $) { if (container.length !== 1) { throw new Error('initComboMarkdownEditor: container must be a single element'); } container = container[0]; } if (!container) { throw new Error('initComboMarkdownEditor: container is null'); } const editor = new ComboMarkdownEditor(container, options); await editor.init(); return editor; }