Files
markdown_editor/static/app-tree.js
2025-10-26 07:17:49 +04:00

867 lines
29 KiB
JavaScript

// Markdown Editor Application with File Tree
(function() {
'use strict';
// State management
let currentFile = null;
let currentFilePath = null;
let editor = null;
let isScrollingSynced = true;
let scrollTimeout = null;
let isDarkMode = false;
let fileTree = [];
let contextMenuTarget = null;
let clipboard = null; // For copy/move operations
// Dark mode management
function initDarkMode() {
const savedMode = localStorage.getItem('darkMode');
if (savedMode === 'true') {
enableDarkMode();
}
}
function enableDarkMode() {
isDarkMode = true;
document.body.classList.add('dark-mode');
document.getElementById('darkModeIcon').textContent = '☀️';
localStorage.setItem('darkMode', 'true');
mermaid.initialize({
startOnLoad: false,
theme: 'dark',
securityLevel: 'loose'
});
if (editor && editor.getValue()) {
updatePreview();
}
}
function disableDarkMode() {
isDarkMode = false;
document.body.classList.remove('dark-mode');
document.getElementById('darkModeIcon').textContent = '🌙';
localStorage.setItem('darkMode', 'false');
mermaid.initialize({
startOnLoad: false,
theme: 'default',
securityLevel: 'loose'
});
if (editor && editor.getValue()) {
updatePreview();
}
}
function toggleDarkMode() {
if (isDarkMode) {
disableDarkMode();
} else {
enableDarkMode();
}
}
// Initialize Mermaid
mermaid.initialize({
startOnLoad: false,
theme: 'default',
securityLevel: 'loose'
});
// Configure marked.js for markdown parsing
marked.setOptions({
breaks: true,
gfm: true,
headerIds: true,
mangle: false,
sanitize: false,
smartLists: true,
smartypants: true,
xhtml: false
});
// Handle image upload
async function uploadImage(file) {
const formData = new FormData();
formData.append('file', file);
try {
const response = await fetch('/api/upload-image', {
method: 'POST',
body: formData
});
if (!response.ok) throw new Error('Upload failed');
const result = await response.json();
return result.url;
} catch (error) {
console.error('Error uploading image:', error);
showNotification('Error uploading image', 'danger');
return null;
}
}
// Handle drag and drop for images
function setupDragAndDrop() {
const editorElement = document.querySelector('.CodeMirror');
['dragenter', 'dragover', 'dragleave', 'drop'].forEach(eventName => {
editorElement.addEventListener(eventName, preventDefaults, false);
});
function preventDefaults(e) {
e.preventDefault();
e.stopPropagation();
}
['dragenter', 'dragover'].forEach(eventName => {
editorElement.addEventListener(eventName, () => {
editorElement.classList.add('drag-over');
}, false);
});
['dragleave', 'drop'].forEach(eventName => {
editorElement.addEventListener(eventName, () => {
editorElement.classList.remove('drag-over');
}, false);
});
editorElement.addEventListener('drop', async (e) => {
const files = e.dataTransfer.files;
if (files.length === 0) return;
const imageFiles = Array.from(files).filter(file =>
file.type.startsWith('image/')
);
if (imageFiles.length === 0) {
showNotification('Please drop image files only', 'warning');
return;
}
showNotification(`Uploading ${imageFiles.length} image(s)...`, 'info');
for (const file of imageFiles) {
const url = await uploadImage(file);
if (url) {
const cursor = editor.getCursor();
const imageMarkdown = `![${file.name}](${url})`;
editor.replaceRange(imageMarkdown, cursor);
editor.setCursor(cursor.line, cursor.ch + imageMarkdown.length);
showNotification(`Image uploaded: ${file.name}`, 'success');
}
}
}, false);
editorElement.addEventListener('paste', async (e) => {
const items = e.clipboardData?.items;
if (!items) return;
for (const item of items) {
if (item.type.startsWith('image/')) {
e.preventDefault();
const file = item.getAsFile();
if (file) {
showNotification('Uploading pasted image...', 'info');
const url = await uploadImage(file);
if (url) {
const cursor = editor.getCursor();
const imageMarkdown = `![pasted-image](${url})`;
editor.replaceRange(imageMarkdown, cursor);
showNotification('Image uploaded successfully', 'success');
}
}
}
}
});
}
// Initialize CodeMirror editor
function initEditor() {
editor = CodeMirror.fromTextArea(document.getElementById('editor'), {
mode: 'markdown',
theme: 'monokai',
lineNumbers: true,
lineWrapping: true,
autofocus: true,
extraKeys: {
'Ctrl-S': function() { saveFile(); },
'Cmd-S': function() { saveFile(); }
}
});
editor.on('change', debounce(updatePreview, 300));
setTimeout(setupDragAndDrop, 100);
setupScrollSync();
}
// Debounce function
function debounce(func, wait) {
let timeout;
return function executedFunction(...args) {
const later = () => {
clearTimeout(timeout);
func(...args);
};
clearTimeout(timeout);
timeout = setTimeout(later, wait);
};
}
// Setup synchronized scrolling
function setupScrollSync() {
const previewDiv = document.getElementById('preview');
editor.on('scroll', () => {
if (!isScrollingSynced) return;
const scrollInfo = editor.getScrollInfo();
const scrollPercentage = scrollInfo.top / (scrollInfo.height - scrollInfo.clientHeight);
const previewScrollHeight = previewDiv.scrollHeight - previewDiv.clientHeight;
previewDiv.scrollTop = previewScrollHeight * scrollPercentage;
});
}
// Update preview
async function updatePreview() {
const markdown = editor.getValue();
const previewDiv = document.getElementById('preview');
if (!markdown.trim()) {
previewDiv.innerHTML = `
<div class="text-muted text-center mt-5">
<h4>Preview</h4>
<p>Start typing in the editor to see the preview</p>
</div>
`;
return;
}
try {
let html = marked.parse(markdown);
html = html.replace(
/<pre><code class="language-mermaid">([\s\S]*?)<\/code><\/pre>/g,
'<div class="mermaid">$1</div>'
);
previewDiv.innerHTML = html;
const codeBlocks = previewDiv.querySelectorAll('pre code');
codeBlocks.forEach(block => {
const languageClass = Array.from(block.classList).find(cls => cls.startsWith('language-'));
if (languageClass && languageClass !== 'language-mermaid') {
Prism.highlightElement(block);
}
});
const mermaidElements = previewDiv.querySelectorAll('.mermaid');
if (mermaidElements.length > 0) {
try {
await mermaid.run({
nodes: mermaidElements,
suppressErrors: false
});
} catch (error) {
console.error('Mermaid rendering error:', error);
}
}
} catch (error) {
console.error('Preview rendering error:', error);
previewDiv.innerHTML = `
<div class="alert alert-danger" role="alert">
<strong>Error rendering preview:</strong> ${error.message}
</div>
`;
}
}
// ========================================================================
// File Tree Management
// ========================================================================
async function loadFileTree() {
try {
const response = await fetch('/api/tree');
if (!response.ok) throw new Error('Failed to load file tree');
fileTree = await response.json();
renderFileTree();
} catch (error) {
console.error('Error loading file tree:', error);
showNotification('Error loading files', 'danger');
}
}
function renderFileTree() {
const container = document.getElementById('fileTree');
container.innerHTML = '';
if (fileTree.length === 0) {
container.innerHTML = '<div class="text-muted text-center p-3">No files yet</div>';
return;
}
fileTree.forEach(node => {
container.appendChild(createTreeNode(node));
});
}
function createTreeNode(node, level = 0) {
const nodeDiv = document.createElement('div');
nodeDiv.className = 'tree-node-wrapper';
const nodeContent = document.createElement('div');
nodeContent.className = 'tree-node';
nodeContent.dataset.path = node.path;
nodeContent.dataset.type = node.type;
nodeContent.dataset.name = node.name;
// Make draggable
nodeContent.draggable = true;
nodeContent.addEventListener('dragstart', handleDragStart);
nodeContent.addEventListener('dragend', handleDragEnd);
nodeContent.addEventListener('dragover', handleDragOver);
nodeContent.addEventListener('dragleave', handleDragLeave);
nodeContent.addEventListener('drop', handleDrop);
const contentWrapper = document.createElement('div');
contentWrapper.className = 'tree-node-content';
if (node.type === 'directory') {
const toggle = document.createElement('span');
toggle.className = 'tree-node-toggle';
toggle.innerHTML = '▶';
toggle.addEventListener('click', (e) => {
e.stopPropagation();
toggleNode(nodeDiv);
});
contentWrapper.appendChild(toggle);
} else {
const spacer = document.createElement('span');
spacer.style.width = '16px';
contentWrapper.appendChild(spacer);
}
const icon = document.createElement('i');
icon.className = node.type === 'directory' ? 'bi bi-folder tree-node-icon' : 'bi bi-file-earmark-text tree-node-icon';
contentWrapper.appendChild(icon);
const name = document.createElement('span');
name.className = 'tree-node-name';
name.textContent = node.name;
contentWrapper.appendChild(name);
if (node.type === 'file' && node.size) {
const size = document.createElement('span');
size.className = 'file-size-badge';
size.textContent = formatFileSize(node.size);
contentWrapper.appendChild(size);
}
nodeContent.appendChild(contentWrapper);
nodeContent.addEventListener('click', (e) => {
if (node.type === 'file') {
loadFile(node.path);
}
});
nodeContent.addEventListener('contextmenu', (e) => {
e.preventDefault();
showContextMenu(e, node);
});
nodeDiv.appendChild(nodeContent);
if (node.children && node.children.length > 0) {
const childrenDiv = document.createElement('div');
childrenDiv.className = 'tree-children collapsed';
node.children.forEach(child => {
childrenDiv.appendChild(createTreeNode(child, level + 1));
});
nodeDiv.appendChild(childrenDiv);
}
return nodeDiv;
}
function toggleNode(nodeWrapper) {
const toggle = nodeWrapper.querySelector('.tree-node-toggle');
const children = nodeWrapper.querySelector('.tree-children');
if (children) {
children.classList.toggle('collapsed');
toggle.classList.toggle('expanded');
}
}
function formatFileSize(bytes) {
if (bytes < 1024) return bytes + ' B';
if (bytes < 1024 * 1024) return (bytes / 1024).toFixed(1) + ' KB';
return (bytes / (1024 * 1024)).toFixed(1) + ' MB';
}
// ========================================================================
// Drag and Drop for Files
// ========================================================================
let draggedNode = null;
function handleDragStart(e) {
draggedNode = {
path: e.currentTarget.dataset.path,
type: e.currentTarget.dataset.type,
name: e.currentTarget.dataset.name
};
e.currentTarget.classList.add('dragging');
e.dataTransfer.effectAllowed = 'move';
e.dataTransfer.setData('text/plain', draggedNode.path);
}
function handleDragEnd(e) {
e.currentTarget.classList.remove('dragging');
document.querySelectorAll('.drag-over').forEach(el => {
el.classList.remove('drag-over');
});
}
function handleDragOver(e) {
if (!draggedNode) return;
e.preventDefault();
e.dataTransfer.dropEffect = 'move';
const targetType = e.currentTarget.dataset.type;
if (targetType === 'directory') {
e.currentTarget.classList.add('drag-over');
}
}
function handleDragLeave(e) {
e.currentTarget.classList.remove('drag-over');
}
async function handleDrop(e) {
e.preventDefault();
e.currentTarget.classList.remove('drag-over');
if (!draggedNode) return;
const targetPath = e.currentTarget.dataset.path;
const targetType = e.currentTarget.dataset.type;
if (targetType !== 'directory') return;
if (draggedNode.path === targetPath) return;
const sourcePath = draggedNode.path;
const destPath = targetPath + '/' + draggedNode.name;
try {
const response = await fetch('/api/file/move', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
source: sourcePath,
destination: destPath
})
});
if (!response.ok) throw new Error('Move failed');
showNotification(`Moved ${draggedNode.name}`, 'success');
loadFileTree();
} catch (error) {
console.error('Error moving file:', error);
showNotification('Error moving file', 'danger');
}
draggedNode = null;
}
// ========================================================================
// Context Menu
// ========================================================================
function showContextMenu(e, node) {
contextMenuTarget = node;
const menu = document.getElementById('contextMenu');
const pasteItem = document.getElementById('pasteMenuItem');
// Show paste option only if clipboard has something and target is a directory
if (clipboard && node.type === 'directory') {
pasteItem.style.display = 'flex';
} else {
pasteItem.style.display = 'none';
}
menu.style.display = 'block';
menu.style.left = e.pageX + 'px';
menu.style.top = e.pageY + 'px';
document.addEventListener('click', hideContextMenu);
}
function hideContextMenu() {
const menu = document.getElementById('contextMenu');
menu.style.display = 'none';
document.removeEventListener('click', hideContextMenu);
}
// ========================================================================
// File Operations
// ========================================================================
async function loadFile(path) {
try {
const response = await fetch(`/api/file?path=${encodeURIComponent(path)}`);
if (!response.ok) throw new Error('Failed to load file');
const data = await response.json();
currentFile = data.filename;
currentFilePath = path;
document.getElementById('filenameInput').value = path;
editor.setValue(data.content);
updatePreview();
document.querySelectorAll('.tree-node').forEach(node => {
node.classList.remove('active');
});
document.querySelector(`[data-path="${path}"]`)?.classList.add('active');
showNotification(`Loaded ${data.filename}`, 'info');
} catch (error) {
console.error('Error loading file:', error);
showNotification('Error loading file', 'danger');
}
}
async function saveFile() {
const path = document.getElementById('filenameInput').value.trim();
if (!path) {
showNotification('Please enter a filename', 'warning');
return;
}
const content = editor.getValue();
try {
const response = await fetch('/api/file', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ path, content })
});
if (!response.ok) throw new Error('Failed to save file');
const result = await response.json();
currentFile = path.split('/').pop();
currentFilePath = result.path;
showNotification(`Saved ${currentFile}`, 'success');
loadFileTree();
} catch (error) {
console.error('Error saving file:', error);
showNotification('Error saving file', 'danger');
}
}
async function deleteFile() {
if (!currentFilePath) {
showNotification('No file selected', 'warning');
return;
}
if (!confirm(`Are you sure you want to delete ${currentFile}?`)) {
return;
}
try {
const response = await fetch(`/api/file?path=${encodeURIComponent(currentFilePath)}`, {
method: 'DELETE'
});
if (!response.ok) throw new Error('Failed to delete file');
showNotification(`Deleted ${currentFile}`, 'success');
currentFile = null;
currentFilePath = null;
document.getElementById('filenameInput').value = '';
editor.setValue('');
updatePreview();
loadFileTree();
} catch (error) {
console.error('Error deleting file:', error);
showNotification('Error deleting file', 'danger');
}
}
function newFile() {
// Clear editor for new file
currentFile = null;
currentFilePath = null;
document.getElementById('filenameInput').value = '';
document.getElementById('filenameInput').focus();
editor.setValue('');
updatePreview();
document.querySelectorAll('.tree-node').forEach(node => {
node.classList.remove('active');
});
showNotification('Enter filename and start typing', 'info');
}
async function createFolder() {
const folderName = prompt('Enter folder name:');
if (!folderName) return;
try {
const response = await fetch('/api/directory', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({ path: folderName })
});
if (!response.ok) throw new Error('Failed to create folder');
showNotification(`Created folder ${folderName}`, 'success');
loadFileTree();
} catch (error) {
console.error('Error creating folder:', error);
showNotification('Error creating folder', 'danger');
}
}
// ========================================================================
// Context Menu Actions
// ========================================================================
async function handleContextMenuAction(action) {
if (!contextMenuTarget) return;
switch (action) {
case 'open':
if (contextMenuTarget.type === 'file') {
loadFile(contextMenuTarget.path);
}
break;
case 'rename':
await renameItem();
break;
case 'copy':
clipboard = { ...contextMenuTarget, operation: 'copy' };
showNotification(`Copied ${contextMenuTarget.name}`, 'info');
break;
case 'move':
clipboard = { ...contextMenuTarget, operation: 'move' };
showNotification(`Cut ${contextMenuTarget.name}`, 'info');
break;
case 'paste':
await pasteItem();
break;
case 'delete':
await deleteItem();
break;
}
}
async function renameItem() {
const newName = prompt(`Rename ${contextMenuTarget.name}:`, contextMenuTarget.name);
if (!newName || newName === contextMenuTarget.name) return;
const oldPath = contextMenuTarget.path;
const newPath = oldPath.substring(0, oldPath.lastIndexOf('/') + 1) + newName;
try {
const endpoint = contextMenuTarget.type === 'directory' ? '/api/directory/rename' : '/api/file/rename';
const response = await fetch(endpoint, {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
old_path: oldPath,
new_path: newPath
})
});
if (!response.ok) throw new Error('Rename failed');
showNotification(`Renamed to ${newName}`, 'success');
loadFileTree();
} catch (error) {
console.error('Error renaming:', error);
showNotification('Error renaming', 'danger');
}
}
async function pasteItem() {
if (!clipboard) return;
const destDir = contextMenuTarget.path;
const sourcePath = clipboard.path;
const fileName = clipboard.name;
const destPath = destDir + '/' + fileName;
try {
if (clipboard.operation === 'copy') {
// Copy operation
const response = await fetch('/api/file/copy', {
method: 'POST',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
source: sourcePath,
destination: destPath
})
});
if (!response.ok) throw new Error('Copy failed');
showNotification(`Copied ${fileName} to ${contextMenuTarget.name}`, 'success');
} else if (clipboard.operation === 'move') {
// Move operation
const response = await fetch('/api/file/move', {
method: 'PUT',
headers: { 'Content-Type': 'application/json' },
body: JSON.stringify({
source: sourcePath,
destination: destPath
})
});
if (!response.ok) throw new Error('Move failed');
showNotification(`Moved ${fileName} to ${contextMenuTarget.name}`, 'success');
clipboard = null; // Clear clipboard after move
}
loadFileTree();
} catch (error) {
console.error('Error pasting:', error);
showNotification('Error pasting file', 'danger');
}
}
async function deleteItem() {
if (!confirm(`Are you sure you want to delete ${contextMenuTarget.name}?`)) {
return;
}
try {
let response;
if (contextMenuTarget.type === 'directory') {
response = await fetch(`/api/directory?path=${encodeURIComponent(contextMenuTarget.path)}&recursive=true`, {
method: 'DELETE'
});
} else {
response = await fetch(`/api/file?path=${encodeURIComponent(contextMenuTarget.path)}`, {
method: 'DELETE'
});
}
if (!response.ok) throw new Error('Delete failed');
showNotification(`Deleted ${contextMenuTarget.name}`, 'success');
loadFileTree();
} catch (error) {
console.error('Error deleting:', error);
showNotification('Error deleting', 'danger');
}
}
// ========================================================================
// Notifications
// ========================================================================
function showNotification(message, type = 'info') {
let toastContainer = document.getElementById('toastContainer');
if (!toastContainer) {
toastContainer = createToastContainer();
}
const toast = document.createElement('div');
toast.className = `toast align-items-center text-white bg-${type} border-0`;
toast.setAttribute('role', 'alert');
toast.innerHTML = `
<div class="d-flex">
<div class="toast-body">${message}</div>
<button type="button" class="btn-close btn-close-white me-2 m-auto" data-bs-dismiss="toast" aria-label="Close"></button>
</div>
`;
toastContainer.appendChild(toast);
const bsToast = new bootstrap.Toast(toast, { delay: 3000 });
bsToast.show();
toast.addEventListener('hidden.bs.toast', () => {
toast.remove();
});
}
function createToastContainer() {
const container = document.createElement('div');
container.id = 'toastContainer';
container.className = 'toast-container position-fixed top-0 end-0 p-3';
container.style.zIndex = '9999';
document.body.appendChild(container);
return container;
}
// ========================================================================
// Initialization
// ========================================================================
function init() {
initDarkMode();
initEditor();
loadFileTree();
document.getElementById('saveBtn').addEventListener('click', saveFile);
document.getElementById('deleteBtn').addEventListener('click', deleteFile);
document.getElementById('newFileBtn').addEventListener('click', newFile);
document.getElementById('newFolderBtn').addEventListener('click', createFolder);
document.getElementById('darkModeToggle').addEventListener('click', toggleDarkMode);
// Context menu actions
document.querySelectorAll('.context-menu-item').forEach(item => {
item.addEventListener('click', () => {
const action = item.dataset.action;
handleContextMenuAction(action);
hideContextMenu();
});
});
document.addEventListener('keydown', (e) => {
if ((e.ctrlKey || e.metaKey) && e.key === 's') {
e.preventDefault();
saveFile();
}
});
console.log('Markdown Editor with File Tree initialized');
}
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', init);
} else {
init();
}
})();