refactor(ios): drop UIApplication.sendAction keyboard dismiss for binding-driven focus (#1167)

Author: datlechin

CHANGELOG.md

@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+- Internal: iOS query editor uses a `Binding<Bool>` focus channel into `SQLHighlightTextView` to dismiss the keyboard before running a query, replacing the `UIApplication.shared.sendAction(#selector(UIResponder.resignFirstResponder))` call. Keyboard behavior is unchanged
 - Internal: iOS row detail (edit lifecycle, save SQL build, lazy cell value load, primary key extraction, success-toast auto-dismiss) moves out of the View into `RowDetailViewModel`. The View now keeps only sheet flags and haptic triggers; behavior is unchanged
 - Internal: iOS connection form (test connection, save, file picker handlers, default port resolution, credential hydration) moves out of the View into `ConnectionFormViewModel`. The View drops from 53 to 5 `@State` properties; behavior is unchanged
 - Internal: iOS data browser business logic (page load, pagination, sort, filter, search, delete, foreign-key fetch, memory pressure) moves out of the View into `DataBrowserViewModel`. The View drops 30 of its 33 `@State` properties and a dozen private functions; behavior is unchanged

TableProMobile/TableProMobile/Views/Components/SQLHighlightTextView.swift

@@ -8,9 +8,15 @@ import UIKit
 
 struct SQLHighlightTextView: UIViewRepresentable {
     @Binding var text: String
+    @Binding var isFocused: Bool
 
     private static let font = UIFont.monospacedSystemFont(ofSize: 15, weight: .regular)
 
+    init(text: Binding<String>, isFocused: Binding<Bool> = .constant(false)) {
+        self._text = text
+        self._isFocused = isFocused
+    }
+
     func makeUIView(context: Context) -> UITextView {
         let textView = UITextView()
         context.coordinator.textView = textView
@@ -40,6 +46,11 @@ struct SQLHighlightTextView: UIViewRepresentable {
             }
             context.coordinator.isUpdating = false
         }
+        if isFocused, !textView.isFirstResponder {
+            textView.becomeFirstResponder()
+        } else if !isFocused, textView.isFirstResponder {
+            textView.resignFirstResponder()
+        }
     }
 
     func makeCoordinator() -> Coordinator { Coordinator(self) }
@@ -58,6 +69,14 @@ struct SQLHighlightTextView: UIViewRepresentable {
             parent.text = textView.text
         }
 
+        func textViewDidBeginEditing(_ textView: UITextView) {
+            if !parent.isFocused { parent.isFocused = true }
+        }
+
+        func textViewDidEndEditing(_ textView: UITextView) {
+            if parent.isFocused { parent.isFocused = false }
+        }
+
         func textStorage(
             _ textStorage: NSTextStorage,
             didProcessEditing editedMask: NSTextStorage.EditActions,

TableProMobile/TableProMobile/Views/QueryEditorView.swift

@@ -14,6 +14,7 @@ struct QueryEditorView: View {
     private static let logger = Logger(subsystem: "com.TablePro", category: "QueryEditorView")
 
     @State private var query = ""
+    @State private var editorFocused = false
     @State private var viewModel = QueryEditorViewModel()
     @State private var appError: AppError?
     @State private var isExecuting = false
@@ -112,7 +113,7 @@ struct QueryEditorView: View {
 
     private var editorSection: some View {
         VStack(spacing: 0) {
-            SQLHighlightTextView(text: $query)
+            SQLHighlightTextView(text: $query, isFocused: $editorFocused)
                 .frame(minHeight: 80, maxHeight: hasResult || appError != nil ? 120 : 250)
 
             actionBar
@@ -392,7 +393,7 @@ struct QueryEditorView: View {
     private func executeQueryDirect(_ trimmed: String) async {
         guard let session else { return }
 
-        UIApplication.shared.sendAction(#selector(UIResponder.resignFirstResponder), to: nil, from: nil, for: nil)
+        editorFocused = false
         isExecuting = true
         executionStartTime = Date()
         defer {