Release version 1.2.7 - Fix v1.2.6 regressions (both issues still not working)

Fixed both critical issues that were not resolved in v1.2.6:

1. Variable Product Forms Still Not Showing (Critical)
   - v1.2.6 used wrong hook (woocommerce_product_options_pricing)
   - That hook only fires for simple products, not variable products
   - Changed to woocommerce_product_options_general_product_data
   - This hook fires for all product types after general tab
   - Forms now appear correctly for variable product parents

2. Table Headers Still Visible When Empty (Critical)
   - CSS :has() pseudo-class wasn't working reliably
   - Implemented JavaScript + CSS class approach instead
   - Added updateTableHeaders() function that toggles has-rows class
   - Headers hide by default, show only when table has rows
   - Function called on page load and after all add/remove operations
   - Works across all browsers without modern CSS requirements

Changed files:
- includes/class-wc-tpp-product-meta.php - Fixed WooCommerce hook
- assets/css/admin.css - Class-based header visibility
- assets/js/admin.js - Added updateTableHeaders() and parent handlers

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

assets/css/admin.css

@@ -112,10 +112,16 @@
 }
 
 /* Hide table headers when there are no pricing rules */
-/* Use :has() pseudo-class to check if tbody is empty */
-.wc-tpp-tiers-table:has(tbody.wc-tpp-tiers-container:empty) thead,
-.wc-tpp-packages-table:has(tbody.wc-tpp-packages-container:empty) thead {
-    display: none !important;
+/* Default: hide headers initially, JavaScript will show them when rows are added */
+.wc-tpp-tiers-table thead,
+.wc-tpp-packages-table thead {
+    display: none;
+}
+
+/* Show headers when table has pricing rows */
+.wc-tpp-tiers-table.has-rows thead,
+.wc-tpp-packages-table.has-rows thead {
+    display: table-header-group !important;
 }
 
 /* Checkbox styling improvements */

assets/js/admin.js

@@ -10,6 +10,28 @@
         let tierIndex = $('.wc-tpp-tier-pricing .wc-tpp-tier-row').length;
         let packageIndex = $('.wc-tpp-package-pricing .wc-tpp-package-row').length;
 
+        // Function to update table header visibility
+        function updateTableHeaders() {
+            // Check all tier tables
+            $('.wc-tpp-tiers-table').each(function() {
+                const $table = $(this);
+                const $tbody = $table.find('.wc-tpp-tiers-container');
+                const hasRows = $tbody.find('tr').length > 0;
+                $table.toggleClass('has-rows', hasRows);
+            });
+
+            // Check all package tables
+            $('.wc-tpp-packages-table').each(function() {
+                const $table = $(this);
+                const $tbody = $table.find('.wc-tpp-packages-container');
+                const hasRows = $tbody.find('tr').length > 0;
+                $table.toggleClass('has-rows', hasRows);
+            });
+        }
+
+        // Initialize table headers on page load
+        updateTableHeaders();
+
         // ========================================
         // Simple Product Handlers
         // ========================================
@@ -21,6 +43,7 @@
             const newRow = template.replace(/\{\{INDEX\}\}/g, tierIndex);
             $('.wc-tpp-tier-pricing .wc-tpp-tiers-container').append(newRow);
             tierIndex++;
+            updateTableHeaders();
         });
 
         // Add package (simple products)
@@ -30,6 +53,31 @@
             const newRow = template.replace(/\{\{INDEX\}\}/g, packageIndex);
             $('.wc-tpp-package-pricing .wc-tpp-packages-container').append(newRow);
             packageIndex++;
+            updateTableHeaders();
+        });
+
+        // ========================================
+        // Variable Product Parent Handlers
+        // ========================================
+
+        // Add tier (variable product parent default pricing)
+        $('.wc-tpp-variable-parent-pricing .wc-tpp-add-tier').on('click', function(e) {
+            e.preventDefault();
+            const template = $('#wc-tpp-tier-row-template').html();
+            const newRow = template.replace(/\{\{INDEX\}\}/g, tierIndex);
+            $('.wc-tpp-variable-parent-pricing .wc-tpp-tiers-container').append(newRow);
+            tierIndex++;
+            updateTableHeaders();
+        });
+
+        // Add package (variable product parent default pricing)
+        $('.wc-tpp-variable-parent-pricing .wc-tpp-add-package').on('click', function(e) {
+            e.preventDefault();
+            const template = $('#wc-tpp-package-row-template').html();
+            const newRow = template.replace(/\{\{INDEX\}\}/g, packageIndex);
+            $('.wc-tpp-variable-parent-pricing .wc-tpp-packages-container').append(newRow);
+            packageIndex++;
+            updateTableHeaders();
         });
 
         // ========================================
@@ -50,6 +98,7 @@
             const newRow = template.replace(/\{\{INDEX\}\}/g, currentIndex);
 
             $tbody.append(newRow);
+            updateTableHeaders();
         });
 
         // Add package (variations)
@@ -66,6 +115,7 @@
             const newRow = template.replace(/\{\{INDEX\}\}/g, currentIndex);
 
             $tbody.append(newRow);
+            updateTableHeaders();
         });
 
         // ========================================
@@ -77,6 +127,7 @@
             e.preventDefault();
             if (confirm('Are you sure you want to remove this tier?')) {
                 $(this).closest('.wc-tpp-tier-row').remove();
+                updateTableHeaders();
             }
         });
 
@@ -85,6 +136,7 @@
             e.preventDefault();
             if (confirm('Are you sure you want to remove this package?')) {
                 $(this).closest('.wc-tpp-package-row').remove();
+                updateTableHeaders();
             }
         });