From a2d501f57b63f0b4db94f0209ccd49c1095ccda1 Mon Sep 17 00:00:00 2001
From: "yun.chen" <cooketjoy@gmail.com>
Date: Tue, 1 Sep 2015 17:50:44 +0800
Subject: [PATCH] add fd_fullscreenPopGestureRecognizerDelegate

Let developer can hook fd_fullscreenPopGestureRecognizer
---
 ...igationController+FDFullscreenPopGesture.h |  3 +-
 ...igationController+FDFullscreenPopGesture.m | 59 ++++++++++++++++++-
 2 files changed, 60 insertions(+), 2 deletions(-)

diff --git a/FDFullscreenPopGesture/UINavigationController+FDFullscreenPopGesture.h b/FDFullscreenPopGesture/UINavigationController+FDFullscreenPopGesture.h
index 1be8de7..00851cb 100644
--- a/FDFullscreenPopGesture/UINavigationController+FDFullscreenPopGesture.h
+++ b/FDFullscreenPopGesture/UINavigationController+FDFullscreenPopGesture.h
@@ -33,7 +33,8 @@
 
 /// The gesture recognizer that actually handles interactive pop.
 @property (nonatomic, strong, readonly) UIPanGestureRecognizer *fd_fullscreenPopGestureRecognizer;
-
+/// Don't set gestureRecognizer delegate directly. Use this property instead.
+@property (nonatomic, weak) id<UIGestureRecognizerDelegate> fd_fullscreenPopGestureRecognizerDelegate;
 /// A view controller is able to control navigation bar's appearance by itself,
 /// rather than a global way, checking "fd_prefersNavigationBarHidden" property.
 /// Default to YES, disable it if you don't want so.
diff --git a/FDFullscreenPopGesture/UINavigationController+FDFullscreenPopGesture.m b/FDFullscreenPopGesture/UINavigationController+FDFullscreenPopGesture.m
index 914f217..0066521 100644
--- a/FDFullscreenPopGesture/UINavigationController+FDFullscreenPopGesture.m
+++ b/FDFullscreenPopGesture/UINavigationController+FDFullscreenPopGesture.m
@@ -26,13 +26,20 @@
 @interface _FDFullscreenPopGestureRecognizerDelegate : NSObject <UIGestureRecognizerDelegate>
 
 @property (nonatomic, weak) UINavigationController *navigationController;
-
+@property (nonatomic, weak) id<UIGestureRecognizerDelegate> delegate;
 @end
 
 @implementation _FDFullscreenPopGestureRecognizerDelegate
 
 - (BOOL)gestureRecognizerShouldBegin:(UIPanGestureRecognizer *)gestureRecognizer
 {
+    if (self.delegate && [self.delegate respondsToSelector:@selector(gestureRecognizerShouldBegin:)]) {
+        BOOL shouldBegin = [self.delegate gestureRecognizerShouldBegin:gestureRecognizer];
+        if (shouldBegin == NO) {
+            return shouldBegin;
+        }
+    }
+    
     // Ignore when no view controller is pushed into the navigation stack.
     if (self.navigationController.viewControllers.count <= 1) {
         return NO;
@@ -65,6 +72,46 @@ - (BOOL)gestureRecognizerShouldBegin:(UIPanGestureRecognizer *)gestureRecognizer
     return YES;
 }
 
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
+{
+    if (self.delegate &&
+        [self.delegate respondsToSelector:@selector(gestureRecognizer:shouldRecognizeSimultaneouslyWithGestureRecognizer:)]) {
+        return [self.delegate gestureRecognizer:gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:otherGestureRecognizer];
+    }
+    
+    return NO;
+}
+
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRequireFailureOfGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
+{
+    if (self.delegate &&
+        [self.delegate respondsToSelector:@selector(gestureRecognizer:shouldRequireFailureOfGestureRecognizer:)]) {
+        return [self.delegate gestureRecognizer:gestureRecognizer shouldRequireFailureOfGestureRecognizer:otherGestureRecognizer];
+    }
+    
+    return NO;
+}
+
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldBeRequiredToFailByGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
+{
+    if (self.delegate &&
+        [self.delegate respondsToSelector:@selector(gestureRecognizer:shouldBeRequiredToFailByGestureRecognizer:)]) {
+        return [self.delegate gestureRecognizer:gestureRecognizer shouldBeRequiredToFailByGestureRecognizer:otherGestureRecognizer];
+    }
+    
+    return NO;
+}
+
+- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
+{
+    if (self.delegate &&
+        [self.delegate respondsToSelector:@selector(gestureRecognizer:shouldReceiveTouch:)]) {
+        return [self.delegate gestureRecognizer:gestureRecognizer shouldReceiveTouch:touch];
+    }
+    
+    return YES;
+}
+
 @end
 
 typedef void (^_FDViewControllerWillAppearInjectBlock)(UIViewController *viewController, BOOL animated);
@@ -237,6 +284,16 @@ - (void)setFd_viewControllerBasedNavigationBarAppearanceEnabled:(BOOL)enabled
     objc_setAssociatedObject(self, key, @(enabled), OBJC_ASSOCIATION_RETAIN_NONATOMIC);
 }
 
+- (id<UIGestureRecognizerDelegate>)fd_fullscreenPopGestureRecognizerDelegate
+{
+    return self.fd_popGestureRecognizerDelegate.delegate;
+}
+
+- (void)setFd_fullscreenPopGestureRecognizerDelegate:(id<UIGestureRecognizerDelegate>)fd_fullscreenPopGestureRecognizerDelegate
+{
+    self.fd_popGestureRecognizerDelegate.delegate = fd_fullscreenPopGestureRecognizerDelegate;
+}
+
 @end
 
 @implementation UIViewController (FDFullscreenPopGesture)