Add notification for top will reset

Author: enriquez

ECSlidingViewController/Vendor/ECSlidingViewController/ECSlidingViewController.h

@@ -27,6 +27,9 @@ extern NSString *const ECSlidingViewTopDidAnchorLeft;
 /** Notification that gets posted when the top view is anchored to the right side of the screen */
 extern NSString *const ECSlidingViewTopDidAnchorRight;
 
+/** Notification that gets posted when the top view will be centered on the screen */
+extern NSString *const ECSlidingViewTopWillReset;
+
 /** Notification that gets posted when the top view is centered on the screen */
 extern NSString *const ECSlidingViewTopDidReset;
 

ECSlidingViewController/Vendor/ECSlidingViewController/ECSlidingViewController.m

@@ -14,6 +14,7 @@
 NSString *const ECSlidingViewUnderRightWillDisappear = @"ECSlidingViewUnderRightWillDisappear";
 NSString *const ECSlidingViewTopDidAnchorLeft        = @"ECSlidingViewTopDidAnchorLeft";
 NSString *const ECSlidingViewTopDidAnchorRight       = @"ECSlidingViewTopDidAnchorRight";
+NSString *const ECSlidingViewTopWillReset            = @"ECSlidingViewTopWillReset";
 NSString *const ECSlidingViewTopDidReset             = @"ECSlidingViewTopDidReset";
 
 @interface ECSlidingViewController()
@@ -358,6 +359,9 @@ - (void)anchorTopViewOffScreenTo:(ECSide)side animations:(void(^)())animations o
 
 - (void)resetTopView
 {
+  dispatch_async(dispatch_get_main_queue(), ^{
+    [[NSNotificationCenter defaultCenter] postNotificationName:ECSlidingViewTopWillReset object:self userInfo:nil];
+  });
   [self resetTopViewWithAnimations:nil onComplete:nil];
 }