Adds missing UITextView extensions.

Author: kzaher

RxCocoa/iOS/UITextView+Rx.swift

@@ -63,7 +63,47 @@ extension UITextView : RxTextInput {
 
         return ControlProperty(values: source, valueSink: bindingObserver)
     }
-    
+
+    /**
+     Reactive wrapper for `delegate` message.
+    */
+    public var rx_didBeginEditing: ControlEvent<()> {
+       return ControlEvent<()>(events: self.rx_delegate.observe(#selector(UITextViewDelegate.textViewDidBeginEditing(_:)))
+            .map { a in
+                return ()
+            })
+    }
+
+    /**
+     Reactive wrapper for `delegate` message.
+     */
+    public var rx_didEndEditing: ControlEvent<()> {
+        return ControlEvent<()>(events: self.rx_delegate.observe(#selector(UITextViewDelegate.textViewDidEndEditing(_:)))
+            .map { a in
+                return ()
+            })
+    }
+
+    /**
+     Reactive wrapper for `delegate` message.
+     */
+    public var rx_didChange: ControlEvent<()> {
+        return ControlEvent<()>(events: self.rx_delegate.observe(#selector(UITextViewDelegate.textViewDidChange(_:)))
+            .map { a in
+                return ()
+            })
+    }
+
+    /**
+     Reactive wrapper for `delegate` message.
+     */
+    public var rx_didChangeSelection: ControlEvent<()> {
+        return ControlEvent<()>(events: self.rx_delegate.observe(#selector(UITextViewDelegate.textViewDidChangeSelection(_:)))
+            .map { a in
+                return ()
+            })
+    }
+
 }
 
 #endif

Tests/RxCocoaTests/UITextView+RxTests.swift

@@ -28,6 +28,86 @@ class UITextViewTests : RxTest {
         textView.rx_text.on(.Next("Text2"))
         XCTAssertTrue(textView.set)
     }
+
+    func testDidBeginEditing() {
+        var completed = false
+        var value: ()?
+
+        autoreleasepool {
+            let textView = UITextView(frame: CGRectMake(0, 0, 1, 1))
+
+            _ = textView.rx_didBeginEditing.subscribe(onNext: { n in
+                    value = n
+                }, onCompleted: {
+                    completed = true
+                })
+
+            textView.delegate!.textViewDidBeginEditing!(textView)
+        }
+
+        XCTAssertNotNil(value)
+        XCTAssertTrue(completed)
+    }
+
+    func testDidEndEditing() {
+        var completed = false
+        var value: ()?
+
+        autoreleasepool {
+            let textView = UITextView(frame: CGRectMake(0, 0, 1, 1))
+
+            _ = textView.rx_didEndEditing.subscribe(onNext: { n in
+                    value = n
+                }, onCompleted: {
+                    completed = true
+                })
+
+            textView.delegate!.textViewDidEndEditing!(textView)
+        }
+
+        XCTAssertNotNil(value)
+        XCTAssertTrue(completed)
+    }
+
+    func testDidChange() {
+        var completed = false
+        var value: ()?
+
+        autoreleasepool {
+            let textView = UITextView(frame: CGRectMake(0, 0, 1, 1))
+
+            _ = textView.rx_didChange.subscribe(onNext: { n in
+                    value = n
+                }, onCompleted: {
+                    completed = true
+                })
+
+            textView.delegate!.textViewDidChange!(textView)
+        }
+
+        XCTAssertNotNil(value)
+        XCTAssertTrue(completed)
+    }
+
+    func testDidChangeSelection() {
+        var completed = false
+        var value: ()?
+
+        autoreleasepool {
+            let textView = UITextView(frame: CGRectMake(0, 0, 1, 1))
+
+            _ = textView.rx_didChangeSelection.subscribe(onNext: { n in
+                    value = n
+                }, onCompleted: {
+                    completed = true
+                })
+
+            textView.delegate!.textViewDidChangeSelection!(textView)
+        }
+
+        XCTAssertNotNil(value)
+        XCTAssertTrue(completed)
+    }
 }
 
 class UITextViewSubclass2 : UITextView {
@@ -42,4 +122,4 @@ class UITextViewSubclass2 : UITextView {
             super.text = newValue
         }
     }
-}
+}