feat: add 'searchClicked' callback

thislooksfun · Aug 2, 2020 · 4a5ce7f · 4a5ce7f
1 parent 020890e
commit 4a5ce7f
Showing 1 changed file with 20 additions and 8 deletions.
diff --git a/Sources/SwiftlySearch/SwiftlySearch.swift b/Sources/SwiftlySearch/SwiftlySearch.swift
@@ -21,12 +21,12 @@ import SwiftUI
 import Combine
 
 public extension View {
-    func navigationBarSearch(_ searchText: Binding<String>, placeholder: String? = nil, hidesNavigationBarDuringPresentation: Bool = true, hidesSearchBarWhenScrolling: Bool = true) -> some View {
-        return overlay(SearchBar<AnyView>(text: searchText, placeholder: placeholder, hidesNavigationBarDuringPresentation: hidesNavigationBarDuringPresentation, hidesSearchBarWhenScrolling: hidesSearchBarWhenScrolling).frame(width: 0, height: 0))
+    func navigationBarSearch(_ searchText: Binding<String>, placeholder: String? = nil, hidesNavigationBarDuringPresentation: Bool = true, hidesSearchBarWhenScrolling: Bool = true, searchClicked: @escaping () -> Void = {}) -> some View {
+        return overlay(SearchBar<AnyView>(text: searchText, placeholder: placeholder, hidesNavigationBarDuringPresentation: hidesNavigationBarDuringPresentation, hidesSearchBarWhenScrolling: hidesSearchBarWhenScrolling, searchClicked: searchClicked).frame(width: 0, height: 0))
     }
 
-    func navigationBarSearch<ResultContent: View>(_ searchText: Binding<String>, placeholder: String? = nil, hidesNavigationBarDuringPresentation: Bool = true, hidesSearchBarWhenScrolling: Bool = true, @ViewBuilder resultContent: @escaping (String) -> ResultContent) -> some View {
-        return overlay(SearchBar(text: searchText, placeholder: placeholder, hidesNavigationBarDuringPresentation: hidesNavigationBarDuringPresentation, hidesSearchBarWhenScrolling: hidesSearchBarWhenScrolling, resultContent: resultContent).frame(width: 0, height: 0))
+    func navigationBarSearch<ResultContent: View>(_ searchText: Binding<String>, placeholder: String? = nil, hidesNavigationBarDuringPresentation: Bool = true, hidesSearchBarWhenScrolling: Bool = true, searchClicked: @escaping () -> Void = {}, @ViewBuilder resultContent: @escaping (String) -> ResultContent) -> some View {
+        return overlay(SearchBar(text: searchText, placeholder: placeholder, hidesNavigationBarDuringPresentation: hidesNavigationBarDuringPresentation, hidesSearchBarWhenScrolling: hidesSearchBarWhenScrolling, searchClicked: searchClicked, resultContent: resultContent).frame(width: 0, height: 0))
     }
 }
 
@@ -36,13 +36,15 @@ fileprivate struct SearchBar<ResultContent: View>: UIViewControllerRepresentable
     let placeholder: String?
     let hidesNavigationBarDuringPresentation: Bool
     let hidesSearchBarWhenScrolling: Bool
+    let searchClicked: () -> Void
     let resultContent: (String) -> ResultContent?
 
-    init(text: Binding<String>, placeholder: String?, hidesNavigationBarDuringPresentation: Bool, hidesSearchBarWhenScrolling: Bool, @ViewBuilder resultContent: @escaping (String) -> ResultContent? = { _ in nil }) {
+    init(text: Binding<String>, placeholder: String?, hidesNavigationBarDuringPresentation: Bool, hidesSearchBarWhenScrolling: Bool, searchClicked: @escaping () -> Void, @ViewBuilder resultContent: @escaping (String) -> ResultContent? = { _ in nil }) {
         self._text = text
         self.placeholder = placeholder
         self.hidesNavigationBarDuringPresentation = hidesNavigationBarDuringPresentation
         self.hidesSearchBarWhenScrolling = hidesSearchBarWhenScrolling
+        self.searchClicked = searchClicked
         self.resultContent = resultContent
     }
 
@@ -59,18 +61,20 @@ fileprivate struct SearchBar<ResultContent: View>: UIViewControllerRepresentable
     }
 
     func makeCoordinator() -> Coordinator {
-        return Coordinator(text: $text, placeholder: placeholder, hidesNavigationBarDuringPresentation: hidesNavigationBarDuringPresentation, resultContent: resultContent)
+        return Coordinator(text: $text, placeholder: placeholder, hidesNavigationBarDuringPresentation: hidesNavigationBarDuringPresentation, resultContent: resultContent, searchClicked: searchClicked)
     }
 
-    class Coordinator: NSObject, UISearchResultsUpdating {
+    class Coordinator: NSObject, UISearchResultsUpdating, UISearchBarDelegate {
         @Binding
         var text: String
+        let searchClicked: () -> Void
         let searchController: UISearchController
 
         private var subscription: AnyCancellable?
 
-        init(text: Binding<String>, placeholder: String?, hidesNavigationBarDuringPresentation: Bool, resultContent: (String) -> ResultContent?) {
+        init(text: Binding<String>, placeholder: String?, hidesNavigationBarDuringPresentation: Bool, resultContent: (String) -> ResultContent?, searchClicked: @escaping () -> Void) {
             self._text = text
+            self.searchClicked = searchClicked
 
             let resultView = resultContent(text.wrappedValue)
             let searchResultController = resultView.map { UIHostingController(rootView: $0) }
@@ -82,6 +86,7 @@ fileprivate struct SearchBar<ResultContent: View>: UIViewControllerRepresentable
             searchController.hidesNavigationBarDuringPresentation = hidesNavigationBarDuringPresentation
             searchController.obscuresBackgroundDuringPresentation = false
 
+            searchController.searchBar.delegate = self
             if let placeholder = placeholder {
                 searchController.searchBar.placeholder = placeholder
             }
@@ -96,12 +101,19 @@ fileprivate struct SearchBar<ResultContent: View>: UIViewControllerRepresentable
             self.subscription?.cancel()
         }
 
+        // MARK: - UISearchResultsUpdating
         func updateSearchResults(for searchController: UISearchController) {
             guard let text = searchController.searchBar.text else { return }
             DispatchQueue.main.async {
                 self.text = text
             }
         }
+
+
+        // MARK: - UISearchBarDelegate
+        func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
+            self.searchClicked()
+        }
     }
 
     class SearchBarWrapperController: UIViewController {