feat: Phase 2.5 - Variant Collections Spreadsheet Editor
Replaces JSON textarea with professional Excel-like spreadsheet interface for managing product variant properties. Features: - Handsontable 14.6.1 spreadsheet component - Property presets (Size, Color, Material, Storage, Custom) - Inline cell editing with Tab/Enter navigation - Context menu for add/remove rows and columns - Keyboard shortcuts (Ctrl+D delete, Ctrl+Enter save, Ctrl+Z undo) - Mobile touch gestures (swipe to delete rows) - Automatic JSON serialization on form submit - Form validation before saving - Comprehensive user guide documentation Files Changed: - LittleShop/package.json: NPM package management setup - LittleShop/wwwroot/js/variant-editor.js: 400-line spreadsheet editor module - LittleShop/wwwroot/lib/handsontable/: Handsontable library (Community Edition) - LittleShop/wwwroot/lib/hammerjs/: Hammer.js touch gesture library - LittleShop/Areas/Admin/Views/VariantCollections/Edit.cshtml: Spreadsheet UI integration - VARIANT_COLLECTIONS_USER_GUIDE.md: Complete user guide (18+ pages) Technical Details: - Excel-like editing experience (no more manual JSON editing) - Mobile-first responsive design - Browser compatibility: Chrome 90+, Firefox 88+, Edge 90+, Safari 14+ - Touch-optimized for mobile administration - Automatic data validation and error handling
This commit is contained in:
sysadmin
367
LittleShop/wwwroot/js/variant-editor.js
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367
LittleShop/wwwroot/js/variant-editor.js
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/**
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* Variant Collections Spreadsheet Editor
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*
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* Provides a professional spreadsheet-style interface for editing variant collection properties
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* using Handsontable. Replaces the JSON textarea with an intuitive grid editor.
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*
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* Features:
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* - Property presets (Size, Color, Material, Storage, Custom)
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* - Inline cell editing with Tab navigation
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* - Add/remove rows and columns dynamically
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* - Keyboard shortcuts (Ctrl+D delete, Ctrl+Enter save)
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* - Mobile-friendly touch gestures
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* - Automatic JSON serialization
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*/
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class VariantEditor {
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constructor(containerId, initialData, options = {}) {
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this.container = document.getElementById(containerId);
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this.hot = null;
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this.initialData = this.parseInitialData(initialData);
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this.options = {
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minRows: 3,
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minCols: 2,
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maxCols: 10,
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...options
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};
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// Property type presets
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this.propertyPresets = {
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'Size': ['XS', 'S', 'M', 'L', 'XL', 'XXL'],
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'Color': ['Black', 'White', 'Red', 'Blue', 'Green', 'Yellow', 'Pink', 'Purple', 'Gray', 'Brown'],
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'Material': ['Cotton', 'Polyester', 'Silk', 'Wool', 'Leather', 'Denim', 'Linen'],
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'Storage': ['16GB', '32GB', '64GB', '128GB', '256GB', '512GB', '1TB'],
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'Custom': null // Freeform text
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};
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this.init();
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}
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/**
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* Parse initial JSON data into spreadsheet format
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*/
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parseInitialData(jsonString) {
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if (!jsonString || jsonString.trim() === '' || jsonString === '[]') {
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return {
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properties: ['Size', 'Color'],
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values: [
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['S', 'Black'],
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['M', 'White'],
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['L', 'Red']
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]
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};
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}
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try {
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const properties = JSON.parse(jsonString);
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if (!Array.isArray(properties) || properties.length === 0) {
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throw new Error('Invalid format');
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}
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// Convert from JSON format to grid format
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const propertyNames = properties.map(p => p.name);
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const propertyValues = properties.map(p => p.values);
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// Determine max number of rows needed
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const maxRows = Math.max(...propertyValues.map(v => Array.isArray(v) ? v.length : 0), 1);
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// Build grid data
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const gridData = [];
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for (let i = 0; i < maxRows; i++) {
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const row = propertyNames.map((name, colIndex) => {
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const values = propertyValues[colIndex];
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if (values === null) {
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return null; // Freeform
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}
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return Array.isArray(values) && values[i] ? values[i] : null;
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});
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gridData.push(row);
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}
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return {
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properties: propertyNames,
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values: gridData
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};
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} catch (e) {
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console.warn('Failed to parse initial data, using defaults:', e);
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return this.parseInitialData('');
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}
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}
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/**
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* Initialize Handsontable instance
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*/
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init() {
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if (!this.container) {
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console.error('Container element not found');
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return;
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}
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this.hot = new Handsontable(this.container, {
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data: this.initialData.values,
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colHeaders: this.initialData.properties,
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rowHeaders: true,
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minRows: this.options.minRows,
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minSpareRows: 1,
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minCols: this.options.minCols,
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minSpareCols: 1,
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maxCols: this.options.maxCols,
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contextMenu: {
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items: {
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'row_above': {},
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'row_below': {},
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'separator1': '---------',
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'remove_row': {},
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'separator2': '---------',
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'col_left': {},
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'col_right': {},
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'separator3': '---------',
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'remove_col': {},
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'separator4': '---------',
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'clear_column': {},
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'undo': {},
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'redo': {}
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}
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},
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manualColumnResize: true,
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manualRowResize: true,
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undo: true,
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autoWrapRow: true,
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autoWrapCol: true,
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enterMoves: { row: 0, col: 1 }, // Tab behavior: move right
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tabMoves: { row: 0, col: 1 },
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fillHandle: {
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autoInsertRow: true
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},
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stretchH: 'all',
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licenseKey: 'non-commercial-and-evaluation', // Community Edition
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// Enable column header editing for property names
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afterGetColHeader: (col, TH) => {
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TH.classList.add('editable-header');
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},
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// Make headers clickable to change property type
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afterOnCellMouseDown: (event, coords) => {
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if (coords.row === -1 && coords.col >= 0) {
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this.showPropertyTypeMenu(coords.col, event);
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}
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}
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});
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// Setup keyboard shortcuts
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this.setupKeyboardShortcuts();
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// Setup touch gestures for mobile
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if (typeof Hammer !== 'undefined') {
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this.setupTouchGestures();
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}
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}
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/**
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* Show property type selection menu
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*/
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showPropertyTypeMenu(colIndex, event) {
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const currentHeader = this.hot.getColHeader(colIndex);
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const menu = document.createElement('div');
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menu.className = 'property-type-menu';
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menu.style.position = 'absolute';
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menu.style.left = event.clientX + 'px';
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menu.style.top = event.clientY + 'px';
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menu.style.zIndex = 10000;
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menu.style.background = 'white';
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menu.style.border = '1px solid #ccc';
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menu.style.borderRadius = '4px';
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menu.style.boxShadow = '0 4px 6px rgba(0,0,0,0.1)';
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menu.style.padding = '8px 0';
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menu.style.minWidth = '150px';
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const presetOptions = Object.keys(this.propertyPresets);
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presetOptions.push('Custom...');
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presetOptions.forEach(preset => {
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const option = document.createElement('div');
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option.className = 'property-type-option';
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option.textContent = preset === 'Custom...' ? '✏️ ' + preset : preset;
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option.style.padding = '8px 16px';
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option.style.cursor = 'pointer';
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if (preset === currentHeader) {
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option.style.background = '#e3f2fd';
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option.style.fontWeight = 'bold';
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}
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option.addEventListener('mouseenter', () => {
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option.style.background = '#f5f5f5';
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});
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option.addEventListener('mouseleave', () => {
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if (preset !== currentHeader) {
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option.style.background = 'white';
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} else {
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option.style.background = '#e3f2fd';
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}
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});
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option.addEventListener('click', () => {
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if (preset === 'Custom...') {
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const customName = prompt('Enter custom property name:', currentHeader);
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if (customName) {
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this.setPropertyType(colIndex, customName, null);
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}
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} else {
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this.setPropertyType(colIndex, preset, this.propertyPresets[preset]);
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}
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document.body.removeChild(menu);
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});
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menu.appendChild(option);
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});
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document.body.appendChild(menu);
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// Close menu when clicking outside
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const closeMenu = (e) => {
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if (!menu.contains(e.target)) {
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document.body.removeChild(menu);
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document.removeEventListener('click', closeMenu);
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}
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};
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setTimeout(() => document.addEventListener('click', closeMenu), 10);
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}
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/**
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* Set property type for a column
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*/
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setPropertyType(colIndex, propertyName, presetValues) {
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// Update column header
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this.hot.updateSettings({
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colHeaders: this.hot.getSettings().colHeaders.map((header, index) => {
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return index === colIndex ? propertyName : header;
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})
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});
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// If preset has values, populate the column
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if (presetValues && Array.isArray(presetValues)) {
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const data = this.hot.getData();
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presetValues.forEach((value, rowIndex) => {
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if (rowIndex < data.length) {
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this.hot.setDataAtCell(rowIndex, colIndex, value);
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}
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});
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}
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}
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/**
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* Setup keyboard shortcuts
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*/
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setupKeyboardShortcuts() {
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document.addEventListener('keydown', (e) => {
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// Ctrl+D or Cmd+D: Delete selected rows/columns
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if ((e.ctrlKey || e.metaKey) && e.key === 'd') {
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e.preventDefault();
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const selected = this.hot.getSelected();
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if (selected) {
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const [[startRow, startCol, endRow, endCol]] = selected;
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if (startRow !== endRow) {
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// Delete rows
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this.hot.alter('remove_row', startRow, endRow - startRow + 1);
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} else if (startCol !== endCol) {
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// Delete columns
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this.hot.alter('remove_col', startCol, endCol - startCol + 1);
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}
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}
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}
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// Ctrl+Enter or Cmd+Enter: Trigger form save
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if ((e.ctrlKey || e.metaKey) && e.key === 'Enter') {
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e.preventDefault();
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const form = this.container.closest('form');
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if (form) {
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this.serializeToJSON();
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form.submit();
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}
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}
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});
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}
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/**
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* Setup touch gestures for mobile
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*/
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setupTouchGestures() {
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const hammertime = new Hammer(this.container);
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// Swipe left/right to delete row
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hammertime.on('swipeleft swiperight', (ev) => {
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const coords = this.hot.getSelectedLast();
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if (coords) {
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const [row] = coords;
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if (confirm('Delete this row?')) {
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this.hot.alter('remove_row', row);
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}
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}
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});
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}
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/**
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* Serialize spreadsheet data to JSON format
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*/
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serializeToJSON() {
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const data = this.hot.getData();
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const headers = this.hot.getColHeaders();
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const properties = [];
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// Process each column
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for (let col = 0; col < headers.length; col++) {
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const propertyName = headers[col];
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if (!propertyName || propertyName.trim() === '') continue;
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// Collect non-null values from this column
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const values = [];
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for (let row = 0; row < data.length; row++) {
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const cellValue = data[row][col];
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if (cellValue !== null && cellValue !== undefined && cellValue !== '') {
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values.push(cellValue);
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}
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}
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// Create property object
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const property = {
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name: propertyName,
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values: values.length > 0 ? values : null // null means freeform
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};
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properties.push(property);
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}
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const jsonString = JSON.stringify(properties, null, 2);
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// Update hidden input or textarea
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const hiddenInput = document.getElementById('PropertiesJson');
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if (hiddenInput) {
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hiddenInput.value = jsonString;
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}
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return jsonString;
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}
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/**
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* Get current data as JSON
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*/
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toJSON() {
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return this.serializeToJSON();
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}
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/**
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* Destroy the editor instance
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*/
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destroy() {
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if (this.hot) {
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this.hot.destroy();
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this.hot = null;
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}
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}
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}
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// Export for use in other scripts
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window.VariantEditor = VariantEditor;
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