mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2025-10-31 14:31:02 +00:00
458 lines
18 KiB
JavaScript
458 lines
18 KiB
JavaScript
import '@github/markdown-toolbar-element';
|
|
import '@github/text-expander-element';
|
|
import $ from 'jquery';
|
|
import {attachTribute} from '../tribute.js';
|
|
import {hideElem, showElem, autosize, isElemVisible, replaceTextareaSelection} 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();
|
|
this.setupTableInserter();
|
|
|
|
await this.switchToUserPreference();
|
|
|
|
elementIdCounter++;
|
|
}
|
|
|
|
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_${elementIdCounter}`;
|
|
this.textarea.addEventListener('input', (e) => this.options?.onContentChanged?.(this, e));
|
|
this.applyEditorHeights(this.textarea, this.options.editorHeights);
|
|
|
|
if (this.textarea.getAttribute('data-disable-autosize') !== 'true') {
|
|
this.textareaAutosize = autosize(this.textarea, {viewportMarginBottom: 130});
|
|
}
|
|
|
|
this.textareaMarkdownToolbar = this.container.querySelector('markdown-toolbar');
|
|
this.textareaMarkdownToolbar.setAttribute('for', this.textarea.id);
|
|
for (const el of this.textareaMarkdownToolbar.querySelectorAll('.markdown-toolbar-button')) {
|
|
// upstream bug: The role code is never executed in base MarkdownButtonElement https://github.com/github/markdown-toolbar-element/issues/70
|
|
el.setAttribute('role', 'button');
|
|
// the editor usually is in a form, so the buttons should have "type=button", avoiding conflicting with the form's submit.
|
|
if (el.nodeName === 'BUTTON' && !el.getAttribute('type')) el.setAttribute('type', 'button');
|
|
}
|
|
this.textareaMarkdownToolbar.querySelector('button[data-md-action="indent"]')?.addEventListener('click', () => {
|
|
this.indentSelection(false);
|
|
});
|
|
this.textareaMarkdownToolbar.querySelector('button[data-md-action="unindent"]')?.addEventListener('click', () => {
|
|
this.indentSelection(true);
|
|
});
|
|
this.textareaMarkdownToolbar.querySelector('button[data-md-action="new-table"]')?.setAttribute('data-modal', `div[data-markdown-table-modal-id="${elementIdCounter}"]`);
|
|
|
|
this.textarea.addEventListener('keydown', (e) => {
|
|
if (e.shiftKey) {
|
|
e.target._shiftDown = true;
|
|
}
|
|
if (e.key === 'Enter' && !e.shiftKey && !e.ctrlKey && !e.altKey) {
|
|
if (!this.breakLine()) return; // Nothing changed, let the default handler work.
|
|
this.options?.onContentChanged?.(this, e);
|
|
e.preventDefault();
|
|
}
|
|
});
|
|
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('tw-font-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 tabs = $container[0].querySelectorAll('.tabular.menu > .item');
|
|
|
|
// Fomantic Tab requires the "data-tab" to be globally unique.
|
|
// So here it uses our defined "data-tab-for" and "data-tab-panel" to generate the "data-tab" attribute for Fomantic.
|
|
const tabEditor = Array.from(tabs).find((tab) => tab.getAttribute('data-tab-for') === 'markdown-writer');
|
|
const tabPreviewer = Array.from(tabs).find((tab) => tab.getAttribute('data-tab-for') === 'markdown-previewer');
|
|
tabEditor.setAttribute('data-tab', `markdown-writer-${elementIdCounter}`);
|
|
tabPreviewer.setAttribute('data-tab', `markdown-previewer-${elementIdCounter}`);
|
|
const panelEditor = $container[0].querySelector('.ui.tab[data-tab-panel="markdown-writer"]');
|
|
const panelPreviewer = $container[0].querySelector('.ui.tab[data-tab-panel="markdown-previewer"]');
|
|
panelEditor.setAttribute('data-tab', `markdown-writer-${elementIdCounter}`);
|
|
panelPreviewer.setAttribute('data-tab', `markdown-previewer-${elementIdCounter}`);
|
|
|
|
tabEditor.addEventListener('click', () => {
|
|
requestAnimationFrame(() => {
|
|
this.focus();
|
|
});
|
|
});
|
|
|
|
$(tabs).tab();
|
|
|
|
this.previewUrl = tabPreviewer.getAttribute('data-preview-url');
|
|
this.previewContext = tabPreviewer.getAttribute('data-preview-context');
|
|
this.previewMode = this.options.previewMode ?? 'comment';
|
|
this.previewWiki = this.options.previewWiki ?? false;
|
|
tabPreviewer.addEventListener('click', async () => {
|
|
const formData = new FormData();
|
|
formData.append('mode', this.previewMode);
|
|
formData.append('context', this.previewContext);
|
|
formData.append('text', this.value());
|
|
formData.append('wiki', this.previewWiki);
|
|
const response = await POST(this.previewUrl, {data: formData});
|
|
const data = await response.text();
|
|
renderPreviewPanelContent($(panelPreviewer), data);
|
|
});
|
|
}
|
|
|
|
addNewTable(event) {
|
|
const elementId = event.target.getAttribute('data-element-id');
|
|
const newTableModal = document.querySelector(`div[data-markdown-table-modal-id="${elementId}"]`);
|
|
const form = newTableModal.querySelector('div[data-selector-name="form"]');
|
|
|
|
// Validate input fields
|
|
for (const currentInput of form.querySelectorAll('input')) {
|
|
if (!currentInput.checkValidity()) {
|
|
currentInput.reportValidity();
|
|
return;
|
|
}
|
|
}
|
|
|
|
let headerText = form.querySelector('input[name="table-header"]').value;
|
|
let contentText = form.querySelector('input[name="table-content"]').value;
|
|
const rowCount = parseInt(form.querySelector('input[name="table-rows"]').value);
|
|
const columnCount = parseInt(form.querySelector('input[name="table-columns"]').value);
|
|
|
|
headerText = headerText.padEnd(contentText.length);
|
|
contentText = contentText.padEnd(headerText.length);
|
|
|
|
let code = `| ${(new Array(columnCount)).fill(headerText).join(' | ')} |\n`;
|
|
code += `|-${(new Array(columnCount)).fill('-'.repeat(headerText.length)).join('-|-')}-|\n`;
|
|
for (let i = 0; i < rowCount; i++) {
|
|
code += `| ${(new Array(columnCount)).fill(contentText).join(' | ')} |\n`;
|
|
}
|
|
|
|
replaceTextareaSelection(document.getElementById(`_combo_markdown_editor_${elementId}`), code);
|
|
|
|
// Close the modal
|
|
newTableModal.querySelector('button[data-selector-name="cancel-button"]').click();
|
|
}
|
|
|
|
setupTableInserter() {
|
|
const newTableModal = this.container.querySelector('div[data-modal-name="new-markdown-table"]');
|
|
newTableModal.setAttribute('data-markdown-table-modal-id', elementIdCounter);
|
|
|
|
const button = newTableModal.querySelector('button[data-selector-name="ok-button"]');
|
|
button.setAttribute('data-element-id', elementIdCounter);
|
|
button.addEventListener('click', this.addNewTable);
|
|
}
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
indentSelection(unindent) {
|
|
// Indent with 4 spaces, unindent 4 spaces or fewer or a lost tab.
|
|
const indentPrefix = ' ';
|
|
const unindentRegex = /^( {1,4}|\t)/;
|
|
|
|
// Indent all lines that are included in the selection, partially or whole, while preserving the original selection at the end.
|
|
const lines = this.textarea.value.split('\n');
|
|
const changedLines = [];
|
|
// The current selection or cursor position.
|
|
const [start, end] = [this.textarea.selectionStart, this.textarea.selectionEnd];
|
|
// The range containing whole lines that will effectively be replaced.
|
|
let [editStart, editEnd] = [start, end];
|
|
// The range that needs to be re-selected to match previous selection.
|
|
let [newStart, newEnd] = [start, end];
|
|
// The start and end position of the current line (where end points to the newline or EOF)
|
|
let [lineStart, lineEnd] = [0, 0];
|
|
|
|
for (const line of lines) {
|
|
lineEnd = lineStart + line.length + 1;
|
|
if (lineEnd <= start) {
|
|
lineStart = lineEnd;
|
|
continue;
|
|
}
|
|
|
|
const updated = unindent ? line.replace(unindentRegex, '') : indentPrefix + line;
|
|
changedLines.push(updated);
|
|
const move = updated.length - line.length;
|
|
|
|
if (start >= lineStart && start < lineEnd) {
|
|
editStart = lineStart;
|
|
newStart = Math.max(start + move, lineStart);
|
|
}
|
|
|
|
newEnd += move;
|
|
editEnd = lineEnd - 1;
|
|
lineStart = lineEnd;
|
|
if (lineStart > end) break;
|
|
}
|
|
|
|
// Update changed lines whole.
|
|
const text = changedLines.join('\n');
|
|
this.textarea.focus();
|
|
this.textarea.setSelectionRange(editStart, editEnd);
|
|
if (!document.execCommand('insertText', false, text)) {
|
|
// execCommand is deprecated, but setRangeText (and any other direct value modifications) erases the native undo history.
|
|
// So only fall back to it if execCommand fails.
|
|
this.textarea.setRangeText(text);
|
|
}
|
|
|
|
// Set selection to (effectively) be the same as before.
|
|
this.textarea.setSelectionRange(newStart, Math.max(newStart, newEnd));
|
|
}
|
|
|
|
breakLine() {
|
|
const [start, end] = [this.textarea.selectionStart, this.textarea.selectionEnd];
|
|
|
|
// Do nothing if a range is selected
|
|
if (start !== end) return false;
|
|
|
|
const value = this.textarea.value;
|
|
// Find the beginning of the current line.
|
|
const lineStart = Math.max(0, value.lastIndexOf('\n', start - 1) + 1);
|
|
// Find the end and extract the line.
|
|
const lineEnd = value.indexOf('\n', start);
|
|
const line = value.slice(lineStart, lineEnd === -1 ? value.length : lineEnd);
|
|
// Match any whitespace at the start + any repeatable prefix + exactly one space after.
|
|
const prefix = line.match(/^\s*((\d+)[.)]\s|[-*+]\s+(\[[ x]\]\s?)?|(>\s+)+)?/);
|
|
|
|
// Defer to browser if we can't do anything more useful, or if the cursor is inside the prefix.
|
|
if (!prefix || !prefix[0].length || lineStart + prefix[0].length > start) return false;
|
|
|
|
// Insert newline + prefix.
|
|
let text = `\n${prefix[0]}`;
|
|
// Increment a number if present. (perhaps detecting repeating 1. and not doing that then would be a good idea)
|
|
const num = text.match(/\d+/);
|
|
if (num) text = text.replace(num[0], Number(num[0]) + 1);
|
|
text = text.replace('[x]', '[ ]');
|
|
|
|
if (!document.execCommand('insertText', false, text)) {
|
|
this.textarea.setRangeText(text);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
get userPreferredEditor() {
|
|
return window.localStorage.getItem(`markdown-editor-${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;
|
|
}
|