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Implement editable CSV files with table-based editor #139

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f3870c5
Initial plan
Copilot Sep 1, 2025
01b6b2f
Implement CSV editor with table editing capabilities
Copilot Sep 1, 2025
f8a549d
Complete CSV editor implementation with working demo
Copilot Sep 1, 2025
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364 changes: 364 additions & 0 deletions csv_editor_test.html
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<!DOCTYPE html>
<html>
<head>
<title>CSV Editor Test</title>
<script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/css/bootstrap.min.css" rel="stylesheet">
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.0.0/css/all.min.css">
</head>
<body>
<div class="container mt-4">
<h1>CSV Editor Test</h1>
<p>This page tests the CSV editor component independently.</p>

<!-- CSV Editor HTML -->
<div class="blockpy-csv-editor-test">
<div>
<div class="blockpy-csv-editor-controls mb-2">
<button class="btn btn-sm btn-primary blockpy-csv-add-row" title="Add Row">
<i class="fas fa-plus"></i> Add Row
</button>
<button class="btn btn-sm btn-primary blockpy-csv-add-column" title="Add Column">
<i class="fas fa-plus"></i> Add Column
</button>
<button class="btn btn-sm btn-danger blockpy-csv-delete-row" title="Delete Selected Row">
<i class="fas fa-minus"></i> Delete Row
</button>
<button class="btn btn-sm btn-danger blockpy-csv-delete-column" title="Delete Selected Column">
<i class="fas fa-minus"></i> Delete Column
</button>
</div>
<div class="blockpy-csv-editor-table-container">
<table class="table table-bordered blockpy-csv-editor-table">
<thead>
<tr class="blockpy-csv-header-row"></tr>
</thead>
<tbody class="blockpy-csv-body"></tbody>
</table>
</div>
<div class="blockpy-csv-editor-raw mt-2">
<label>
<input type="checkbox" class="blockpy-csv-raw-mode">
Edit as Raw CSV Text
</label>
<textarea class="form-control blockpy-csv-raw-text" rows="10" style="display: none;"></textarea>
</div>
</div>
</div>

<div class="mt-4">
<h3>CSV Output:</h3>
<pre id="csv-output"></pre>
</div>
</div>

<style>
.blockpy-csv-editor-table-container {
max-height: 400px;
overflow: auto;
border: 1px solid #dee2e6;
}

.blockpy-csv-editor-table {
margin-bottom: 0;
}

.blockpy-csv-editor-table th,
.blockpy-csv-editor-table td {
padding: 2px 4px;
vertical-align: middle;
}

.blockpy-csv-editor-table th {
cursor: pointer;
user-select: none;
background-color: #f8f9fa;
position: sticky;
top: 0;
z-index: 10;
}

.blockpy-csv-editor-table th:hover {
background-color: #e9ecef;
}

.blockpy-csv-editor-table tr:hover {
background-color: rgba(0, 123, 255, 0.1);
}

.blockpy-csv-editor-table tr.table-active,
.blockpy-csv-editor-table th.table-active,
.blockpy-csv-editor-table td.table-active {
background-color: rgba(0, 123, 255, 0.2);
}

.blockpy-csv-editor-table input {
border: none;
background: transparent;
width: 100%;
padding: 2px;
}

.blockpy-csv-editor-table input:focus {
background: white;
border: 1px solid #007bff;
outline: none;
}

.blockpy-csv-editor-controls button {
margin-right: 5px;
}

.blockpy-csv-raw-text {
font-family: monospace;
}
</style>

<script>
// Simple CSV parser - extracted from our CSV editor
class CSVParser {
static parseCSV(csvText) {
if (!csvText || csvText.trim() === "") {
return [[]];
}

const lines = [];
const rows = csvText.split("\n");

for (let row of rows) {
if (row.trim() === "") {
continue;
}

const cells = [];
let currentCell = "";
let inQuotes = false;

for (let i = 0; i < row.length; i++) {
const char = row[i];
const nextChar = row[i + 1];

if (char === '"') {
if (inQuotes && nextChar === '"') {
currentCell += '"';
i++; // Skip next quote
} else {
inQuotes = !inQuotes;
}
} else if (char === "," && !inQuotes) {
cells.push(currentCell);
currentCell = "";
} else {
currentCell += char;
}
}
cells.push(currentCell);
lines.push(cells);
}

return lines;
}

static stringifyCSV(data) {
if (!data || data.length === 0) {
return "";
}

return data.map(row => {
return row.map(cell => {
const cellStr = String(cell || "");
if (cellStr.includes(",") || cellStr.includes('"') || cellStr.includes("\n")) {
return '"' + cellStr.replace(/"/g, '""') + '"';
}
return cellStr;
}).join(",");
}).join("\n");
}
}

// Simple CSV Editor Test Implementation
class SimpleCSVEditor {
constructor() {
this.data = [["Name", "Age", "City"], ["John Doe", "30", "New York"], ["Jane Smith", "25", "Los Angeles"]];
this.selectedRow = -1;
this.selectedColumn = -1;
this.rawMode = false;

this.setupEventHandlers();
this.renderTable();
this.updateOutput();
}

setupEventHandlers() {
$('.blockpy-csv-add-row').on('click', () => this.addRow());
$('.blockpy-csv-add-column').on('click', () => this.addColumn());
$('.blockpy-csv-delete-row').on('click', () => this.deleteRow());
$('.blockpy-csv-delete-column').on('click', () => this.deleteColumn());
$('.blockpy-csv-raw-mode').on('change', (e) => this.toggleRawMode(e.target.checked));
$('.blockpy-csv-raw-text').on('input', () => this.handleRawTextChange());
}

renderTable() {
const headerRow = $('.blockpy-csv-header-row');
const tbody = $('.blockpy-csv-body');

headerRow.empty();
tbody.empty();

if (this.data.length === 0) {
this.data = [[]];
}

const maxColumns = Math.max(...this.data.map(row => row.length), 1);

// Render header
for (let col = 0; col < maxColumns; col++) {
const th = $(`<th data-column="${col}">Column ${col + 1}</th>`);
th.on('click', () => this.selectColumn(col));
headerRow.append(th);
}

// Render data rows
this.data.forEach((row, rowIndex) => {
const tr = $(`<tr data-row="${rowIndex}"></tr>`);
tr.on('click', (e) => {
if (e.target.tagName !== 'INPUT') {
this.selectRow(rowIndex);
}
});

for (let col = 0; col < maxColumns; col++) {
const cellValue = row[col] || '';
const td = $(`<td data-row="${rowIndex}" data-column="${col}"></td>`);
const input = $(`<input type="text" class="form-control form-control-sm" value="">`);
input.val(cellValue);
input.on('input', () => this.handleCellChange(rowIndex, col, input.val()));
td.append(input);
tr.append(td);
}

tbody.append(tr);
});

this.updateSelection();
}

handleCellChange(row, col, value) {
while (this.data.length <= row) {
this.data.push([]);
}
while (this.data[row].length <= col) {
this.data[row].push('');
}

this.data[row][col] = value;
this.updateOutput();
this.updateRawText();
}

updateOutput() {
const csvText = CSVParser.stringifyCSV(this.data);
$('#csv-output').text(csvText);
}

addRow() {
const maxColumns = Math.max(...this.data.map(row => row.length), 1);
const newRow = new Array(maxColumns).fill('');
this.data.push(newRow);
this.renderTable();
this.updateOutput();
this.selectRow(this.data.length - 1);
}

addColumn() {
this.data.forEach(row => row.push(''));
this.renderTable();
this.updateOutput();
this.selectColumn(this.data[0].length - 1);
}

deleteRow() {
if (this.selectedRow >= 0 && this.selectedRow < this.data.length) {
this.data.splice(this.selectedRow, 1);
this.selectedRow = -1;
this.renderTable();
this.updateOutput();
}
}

deleteColumn() {
if (this.selectedColumn >= 0) {
this.data.forEach(row => {
if (row.length > this.selectedColumn) {
row.splice(this.selectedColumn, 1);
}
});
this.selectedColumn = -1;
this.renderTable();
this.updateOutput();
}
}

selectRow(rowIndex) {
this.selectedRow = rowIndex;
this.selectedColumn = -1;
this.updateSelection();
}

selectColumn(columnIndex) {
this.selectedColumn = columnIndex;
this.selectedRow = -1;
this.updateSelection();
}

updateSelection() {
$('tr, th').removeClass('table-active');

if (this.selectedRow >= 0) {
$(`tr[data-row="${this.selectedRow}"]`).addClass('table-active');
}
if (this.selectedColumn >= 0) {
$(`th[data-column="${this.selectedColumn}"], td[data-column="${this.selectedColumn}"]`).addClass('table-active');
}
}

toggleRawMode(enabled) {
this.rawMode = enabled;
const table = $('.blockpy-csv-editor-table-container');
const rawText = $('.blockpy-csv-raw-text');
const controls = $('.blockpy-csv-editor-controls');

if (enabled) {
table.hide();
controls.hide();
rawText.show();
this.updateRawText();
} else {
table.show();
controls.show();
rawText.hide();
this.handleRawTextChange();
}
}

updateRawText() {
if (!this.rawMode) return;

const csvText = CSVParser.stringifyCSV(this.data);
$('.blockpy-csv-raw-text').val(csvText);
}

handleRawTextChange() {
const rawText = $('.blockpy-csv-raw-text').val();
this.data = CSVParser.parseCSV(rawText);
this.renderTable();
this.updateOutput();
}
}

$(document).ready(function() {
new SimpleCSVEditor();
});
</script>
</body>
</html>
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