Add missing control events to UIScrollView+Rx

qazyn951230 · Jun 29, 2017 · b7d1bdd · b7d1bdd
1 parent 4da31c6
commit b7d1bdd
Showing 1 changed file with 29 additions and 0 deletions.
diff --git a/RxCocoa/iOS/UIScrollView+Rx.swift b/RxCocoa/iOS/UIScrollView+Rx.swift
@@ -26,6 +26,7 @@
     }
 
     extension Reactive where Base: UIScrollView {
+        public typealias EndZoomEvent = (view: UIView?, scale: CGFloat)
 
         /// Reactive wrapper for `delegate`.
         ///
@@ -57,13 +58,25 @@
             let source = RxScrollViewDelegateProxy.proxyForObject(base).contentOffsetPublishSubject
             return ControlEvent(events: source)
         }
+
+        /// Reactive wrapper for delegate method `scrollViewWillBeginDecelerating`
+        public var willBeginDecelerating: ControlEvent<Void> {
+            let source = delegate.methodInvoked(#selector(UIScrollViewDelegate.scrollViewWillBeginDecelerating(_:))).map { _ in }
+            return ControlEvent(events: source)
+        }
 
     	/// Reactive wrapper for delegate method `scrollViewDidEndDecelerating`
     	public var didEndDecelerating: ControlEvent<Void> {
     		let source = delegate.methodInvoked(#selector(UIScrollViewDelegate.scrollViewDidEndDecelerating(_:))).map { _ in }
     		return ControlEvent(events: source)
     	}
 
+        /// Reactive wrapper for delegate method `scrollViewWillBeginDragging`
+        public var willBeginDragging: ControlEvent<Void> {
+            let source = delegate.methodInvoked(#selector(UIScrollViewDelegate.scrollViewWillBeginDragging(_:))).map { _ in }
+            return ControlEvent(events: source)
+        }
+
     	/// Reactive wrapper for delegate method `scrollViewDidEndDragging(_:willDecelerate:)`
     	public var didEndDragging: ControlEvent<Bool> {
     		let source = delegate.methodInvoked(#selector(UIScrollViewDelegate.scrollViewDidEndDragging(_:willDecelerate:))).map { value -> Bool in
@@ -90,6 +103,22 @@
             let source = delegate.methodInvoked(#selector(UIScrollViewDelegate.scrollViewDidEndScrollingAnimation(_:))).map { _ in }
             return ControlEvent(events: source)
         }
+
+        /// Reactive wrapper for delegate method `scrollViewWillBeginZooming(_:with:)`
+        public var willBeginZooming: ControlEvent<UIView?> {
+            let source = delegate.methodInvoked(#selector(UIScrollViewDelegate.scrollViewWillBeginZooming(_:with:))).map { value -> UIView? in
+                return try castOptionalOrThrow(UIView.self, value[1] as AnyObject)
+            }
+            return ControlEvent(events: source)
+        }
+
+        /// Reactive wrapper for delegate method `scrollViewDidEndZooming(_:with:atScale:)`
+        public var didEndZooming: ControlEvent<EndZoomEvent> {
+            let source = delegate.methodInvoked(#selector(UIScrollViewDelegate.scrollViewDidEndZooming(_:with:atScale:))).map { value -> EndZoomEvent in
+                return (try castOptionalOrThrow(UIView.self, value[1] as AnyObject), try castOrThrow(CGFloat.self, value[2]))
+            }
+            return ControlEvent(events: source)
+        }
 
         /// Installs delegate as forwarding delegate on `delegate`.
         /// Delegate won't be retained.