Add callbacks for when the Done button is tapped

Author: jsahoo

Objective-C/TOCropViewController/TOCropViewController.h

@@ -317,6 +317,11 @@
  */
 @property (nullable, nonatomic, strong) NSArray<TOCropViewControllerAspectRatioPreset *> *allowedAspectRatios;
 
+/**
+ Called when the user hits the Done button.
+*/
+@property (nullable, nonatomic, copy) void (^onDidTapDone)(void);
+
 /**
  When the user hits cancel, or completes a
  UIActivityViewController operation, this block will be called,

Objective-C/TOCropViewController/TOCropViewController.m

@@ -894,6 +894,12 @@ - (void)doneButtonTapped {
     CGRect cropFrame = self.cropView.imageCropFrame;
     NSInteger angle = self.cropView.angle;
 
+    if (self.onDidTapDone) {
+        dispatch_async(dispatch_get_main_queue(), ^{
+            self.onDidTapDone();
+        });
+    }
+
     // If desired, when the user taps done, show an activity sheet
     if (self.showActivitySheetOnDone) {
         TOActivityCroppedImageProvider *imageItem = [[TOActivityCroppedImageProvider alloc] initWithImage:self.image cropFrame:cropFrame angle:angle circular:(self.croppingStyle == TOCropViewCroppingStyleCircular)];

Swift/CropViewController/CropViewController.swift

@@ -44,6 +44,11 @@ public typealias CropViewCroppingStyle = TOCropViewCroppingStyle
 // ------------------------------------------------
 
 @MainActor @objc public protocol CropViewControllerDelegate: NSObjectProtocol {
+    /**
+     Called when the user hits the Done button.
+     */
+    @objc optional func cropViewControllerDidTapDone(_ cropViewController: CropViewController)
+
     /**
      Called when the user has committed the crop action, and provides
      just the cropping rectangle.
@@ -319,7 +324,15 @@ open class CropViewController: UIViewController, TOCropViewControllerDelegate {
         set { toCropViewController.allowedAspectRatios = newValue }
         get { return toCropViewController.allowedAspectRatios }
     }
-    
+
+    /**
+     Called when the user hits the Done button.
+     */
+     public var onDidTapDone: (() -> Void)? {
+        set { toCropViewController.onDidTapDone = newValue }
+        get { return toCropViewController.onDidTapDone }
+    }
+
     /**
      When the user hits cancel, or completes a
      UIActivityViewController operation, this block will be called,
@@ -650,13 +663,21 @@ extension CropViewController {
 
     fileprivate func setUpDelegateHandlers() {
         guard let delegate = self.delegate else {
+            onDidTapDone = nil
             onDidCropToRect = nil
             onDidCropImageToRect = nil
             onDidCropToCircleImage = nil
             onDidFinishCancelled = nil
             return
         }
-        
+
+        if delegate.responds(to: #selector((any CropViewControllerDelegate).cropViewControllerDidTapDone(_:))) {
+            self.onDidTapDone = { [weak self] in
+                guard let self else { return }
+                delegate.cropViewControllerDidTapDone?(self)
+            }
+        }
+
         if delegate.responds(to: #selector((any CropViewControllerDelegate).cropViewController(_:didCropImageToRect:angle:))) {
             self.onDidCropImageToRect = {[weak self] rect, angle in
                 guard let strongSelf = self else { return }