add scrollViewDelegate variable to redirect delegate events

xai3 · Nov 5, 2016 · c110ff8 · c110ff8
1 parent daafd36
commit c110ff8
Showing 1 changed file with 59 additions and 0 deletions.
diff --git a/Classes/Source.swift b/Classes/Source.swift
@@ -11,6 +11,8 @@ import UIKit
 open class Source: NSObject {
     open fileprivate(set) var sections = [SectionType]()
 
+    public var scrollViewDelegate: UIScrollViewDelegate?
+
     public override init() {
         super.init()
     }
@@ -227,6 +229,63 @@ extension Source: UITableViewDelegate {
     }
 }
 
+// MARK: - Scroll View Delegate
+extension Source: UIScrollViewDelegate {
+
+    public func scrollViewDidScroll(_ scrollView: UIScrollView) {
+        scrollViewDelegate?.scrollViewDidScroll?(scrollView)
+    }
+
+    public func scrollViewDidZoom(_ scrollView: UIScrollView) {
+        scrollViewDelegate?.scrollViewDidZoom?(scrollView)
+    }
+
+    public func scrollViewWillBeginDragging(_ scrollView: UIScrollView) {
+        scrollViewDelegate?.scrollViewWillBeginDragging?(scrollView)
+    }
+
+    public func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>) {
+        scrollViewDelegate?.scrollViewWillEndDragging?(scrollView, withVelocity: velocity, targetContentOffset: targetContentOffset)
+    }
+
+    public func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool) {
+        scrollViewDelegate?.scrollViewDidEndDragging?(scrollView, willDecelerate: decelerate)
+    }
+
+    public func scrollViewWillBeginDecelerating(_ scrollView: UIScrollView) {
+        scrollViewDelegate?.scrollViewWillBeginDecelerating?(scrollView)
+    }
+
+    public func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) {
+        scrollViewDelegate?.scrollViewDidEndDecelerating?(scrollView)
+    }
+
+    public func scrollViewDidEndScrollingAnimation(_ scrollView: UIScrollView) {
+        scrollViewDelegate?.scrollViewDidEndScrollingAnimation?(scrollView)
+    }
+
+    public func viewForZooming(in scrollView: UIScrollView) -> UIView? {
+        return scrollViewDelegate?.viewForZooming?(in: scrollView)
+    }
+
+    public func scrollViewWillBeginZooming(_ scrollView: UIScrollView, with view: UIView?) {
+        scrollViewDelegate?.scrollViewWillBeginZooming!(scrollView, with: view)
+    }
+
+    public func scrollViewDidEndZooming(_ scrollView: UIScrollView, with view: UIView?, atScale scale: CGFloat) {
+        scrollViewDelegate?.scrollViewDidEndZooming!(scrollView, with: view, atScale: scale)
+    }
+
+    public func scrollViewShouldScrollToTop(_ scrollView: UIScrollView) -> Bool {
+        return scrollViewDelegate?.scrollViewShouldScrollToTop?(scrollView) ?? true
+    }
+
+    public func scrollViewDidScrollToTop(_ scrollView: UIScrollView) {
+        scrollViewDelegate?.scrollViewDidScrollToTop?(scrollView)
+    }
+
+}
+
 // MARK: Private method
 
 extension Source {