textview publisher

Signed-off-by: Matt Bruce <matt.bruce@verizon.com>

VDS.xcodeproj/project.pbxproj

@@ -57,6 +57,7 @@
 		EA2DC9B02BE175BA004F58C5 /* RequiredRule.swift in Sources */ = {isa = PBXBuildFile; fileRef = EA2DC9AF2BE175BA004F58C5 /* RequiredRule.swift */; };
 		EA2DC9B22BE175E6004F58C5 /* CharacterCountRule.swift in Sources */ = {isa = PBXBuildFile; fileRef = EA2DC9B12BE175E6004F58C5 /* CharacterCountRule.swift */; };
 		EA2DC9B42BE2C6FE004F58C5 /* TextField.swift in Sources */ = {isa = PBXBuildFile; fileRef = EA2DC9B32BE2C6FE004F58C5 /* TextField.swift */; };
+		EA2DC9B62BE2F4A1004F58C5 /* UITextView+Publisher.swift in Sources */ = {isa = PBXBuildFile; fileRef = EA2DC9B52BE2F4A1004F58C5 /* UITextView+Publisher.swift */; };
 		EA336171288B19200071C351 /* VDS.docc in Sources */ = {isa = PBXBuildFile; fileRef = EA336170288B19200071C351 /* VDS.docc */; };
 		EA336177288B19210071C351 /* VDS.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = EA33616C288B19200071C351 /* VDS.framework */; };
 		EA33617C288B19210071C351 /* VDSTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = EA33617B288B19210071C351 /* VDSTests.swift */; };
@@ -249,6 +250,7 @@
 		EA2DC9AF2BE175BA004F58C5 /* RequiredRule.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RequiredRule.swift; sourceTree = "<group>"; };
 		EA2DC9B12BE175E6004F58C5 /* CharacterCountRule.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CharacterCountRule.swift; sourceTree = "<group>"; };
 		EA2DC9B32BE2C6FE004F58C5 /* TextField.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TextField.swift; sourceTree = "<group>"; };
+		EA2DC9B52BE2F4A1004F58C5 /* UITextView+Publisher.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UITextView+Publisher.swift"; sourceTree = "<group>"; };
 		EA33616C288B19200071C351 /* VDS.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = VDS.framework; sourceTree = BUILT_PRODUCTS_DIR; };
 		EA33616F288B19200071C351 /* VDS.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = VDS.h; sourceTree = "<group>"; };
 		EA336170288B19200071C351 /* VDS.docc */ = {isa = PBXFileReference; lastKnownFileType = folder.documentationcatalog; path = VDS.docc; sourceTree = "<group>"; };
@@ -850,6 +852,7 @@
 			children = (
 				EAB1D2E928AE84AA00DAE764 /* UIControlPublisher.swift */,
 				EA89200328AECF4B006B9984 /* UITextField+Publisher.swift */,
+				EA2DC9B52BE2F4A1004F58C5 /* UITextView+Publisher.swift */,
 				EAD8D2C028BFDE8B006EB6A6 /* UIGestureRecognizer+Publisher.swift */,
 			);
 			path = Publishers;
@@ -1168,6 +1171,7 @@
 				EAB5FEED2927E1B200998C17 /* ButtonGroupPositionLayout.swift in Sources */,
 				EA4DB30228DCBCA500103EE3 /* Badge.swift in Sources */,
 				EA33624728931B050071C351 /* Initable.swift in Sources */,
+				EA2DC9B62BE2F4A1004F58C5 /* UITextView+Publisher.swift in Sources */,
 				EAF7F0A4289B017C00B287F5 /* LabelAttributeModel.swift in Sources */,
 				EA0B18022A9E236900F2D0CD /* SelectorGroupBase.swift in Sources */,
 				EA5F86D02A1F936100BC83E4 /* TabsContainer.swift in Sources */,

VDS/Publishers/UITextView+Publisher.swift

@@ -0,0 +1,68 @@
+//
+//  UITextView+Publisher.swift
+//  VDS
+//
+//  Created by Matt Bruce on 5/1/24.
+//
+
+import Foundation
+import UIKit
+import Combine
+
+extension UITextView {
+
+    public enum Event {
+        case editingChanged
+        case editingDidBegin
+        case editingDidEnd
+    }
+
+    public func publisher(for event: Event) -> AnyPublisher<UITextView, Never> {
+        TextViewPublisher(textView: self).publisher(for: event)
+    }
+}
+
+class TextViewPublisher: NSObject, UITextViewDelegate {
+    var textDidChangePublisher: AnyPublisher<UITextView, Never>
+    var didBeginEditingPublisher: AnyPublisher<UITextView, Never>
+    var didEndEditingPublisher: AnyPublisher<UITextView, Never>
+    
+    private var cancellables = Set<AnyCancellable>()
+
+    init(textView: UITextView) {
+        textDidChangePublisher = NotificationCenter.default.publisher(for: UITextView.textDidChangeNotification, object: textView)
+            .compactMap { notification in
+                (notification.object as? UITextView)
+            }
+            .eraseToAnyPublisher()
+
+        didBeginEditingPublisher = NotificationCenter.default.publisher(for: UITextView.textDidBeginEditingNotification, object: textView)
+            .compactMap { notification in
+                (notification.object as? UITextView)
+            }
+            .eraseToAnyPublisher()
+
+        didEndEditingPublisher = NotificationCenter.default.publisher(for: UITextView.textDidEndEditingNotification, object: textView)
+            .compactMap { notification in
+                (notification.object as? UITextView)
+            }
+            .eraseToAnyPublisher()
+    }
+
+    func publisher(for event: UITextView.Event) -> AnyPublisher<UITextView, Never> {
+        switch event {
+        case .editingChanged:
+            return textDidChangePublisher
+                .map { $0 }
+                .eraseToAnyPublisher()
+        case .editingDidBegin:
+            return didBeginEditingPublisher
+                .map { $0 }
+                .eraseToAnyPublisher()
+        case .editingDidEnd:
+            return didEndEditingPublisher
+                .map { $0 }
+                .eraseToAnyPublisher()
+        }
+    }
+}