feat(datagrid): add Add button to status bar to insert a new row

CHANGELOG.md

@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 
 - Traditional Chinese (繁體中文) language in Settings > General with full UI translation
+- An Add button in the table status bar inserts a new row at the end of the grid and starts editing it.
 
 ## [0.51.1] - 2026-06-16
 

TablePro/Views/Main/Child/MainEditorContentView.swift

@@ -714,7 +714,8 @@ struct MainEditorContentView: View {
                 onRemove: { coordinator.structureActions?.removeRow?() }
             ),
             onToggleFilters: { coordinator.toggleFilterPanel() },
-            onFetchAll: { coordinator.fetchAllRows() }
+            onFetchAll: { coordinator.fetchAllRows() },
+            onAddRow: currentTabAllowsAddRow ? { onAddRow() } : nil
         )
     }
 

TablePro/Views/Main/Child/MainStatusBarView.swift

@@ -41,15 +41,27 @@ struct MainStatusBarView: View {
     let structureState: StatusBarStructureState
     let onToggleFilters: () -> Void
     let onFetchAll: (() -> Void)?
+    let onAddRow: (() -> Void)?
 
     @State private var showColumnPopover = false
 
     private var isStructureMode: Bool { viewMode == .structure }
     private var showsDataChrome: Bool { !isStructureMode }
 
+    static func showsAddRow(viewMode: ResultsViewMode, canAddRow: Bool) -> Bool {
+        viewMode == .data && canAddRow
+    }
+
     private var filterToggleHelp: String {
-        let label = String(localized: "Toggle Filters")
-        guard let combo = AppSettingsManager.shared.keyboard.shortcut(for: .toggleFilters),
+        helpText(String(localized: "Toggle Filters"), shortcut: .toggleFilters)
+    }
+
+    private var addRowHelp: String {
+        helpText(String(localized: "Add Row"), shortcut: .addRow)
+    }
+
+    private func helpText(_ label: String, shortcut action: ShortcutAction) -> String {
+        guard let combo = AppSettingsManager.shared.keyboard.shortcut(for: action),
               !combo.isCleared else {
             return label
         }
@@ -141,6 +153,20 @@ struct MainStatusBarView: View {
                 }
 
                 if showsDataChrome {
+                    if Self.showsAddRow(viewMode: viewMode, canAddRow: onAddRow != nil), let onAddRow {
+                        Button {
+                            onAddRow()
+                        } label: {
+                            HStack(spacing: 4) {
+                                Image(systemName: "plus")
+                                Text("Add")
+                            }
+                        }
+                        .controlSize(.small)
+                        .help(addRowHelp)
+                        .accessibilityLabel(String(localized: "Add Row"))
+                    }
+
                     if snapshot.hasColumns {
                         Button {
                             showColumnPopover.toggle()

TableProTests/Views/Main/MainStatusBarLayoutTests.swift

@@ -42,8 +42,23 @@ struct MainStatusBarLayoutTests {
                 onRemove: {}
             ),
             onToggleFilters: {},
-            onFetchAll: nil
+            onFetchAll: nil,
+            onAddRow: nil
         )
         #expect(type(of: view.body) != Never.self)
     }
+
+    @Test("Add Row button shows only in Data mode when adding is allowed")
+    func addRowVisibilityByMode() {
+        #expect(MainStatusBarView.showsAddRow(viewMode: .data, canAddRow: true))
+        #expect(!MainStatusBarView.showsAddRow(viewMode: .structure, canAddRow: true))
+        #expect(!MainStatusBarView.showsAddRow(viewMode: .json, canAddRow: true))
+    }
+
+    @Test("Add Row button is hidden when adding is not allowed")
+    func addRowHiddenWhenNotAllowed() {
+        #expect(!MainStatusBarView.showsAddRow(viewMode: .data, canAddRow: false))
+        #expect(!MainStatusBarView.showsAddRow(viewMode: .structure, canAddRow: false))
+        #expect(!MainStatusBarView.showsAddRow(viewMode: .json, canAddRow: false))
+    }
 }