From b0097950e675fd01e3d2da8bbafd5d011ca1d7f2 Mon Sep 17 00:00:00 2001
From: Andy Geers <andy.geers@googlemail.com>
Date: Wed, 11 Feb 2015 11:48:55 +0000
Subject: [PATCH] Allow the swipe direction to be overridden

---
 Coach Marks/DDCircleView.h     |  6 ++++++
 Coach Marks/DDCircleView.m     | 32 +++++++++++++++++++++++++-------
 Coach Marks/DDCoachMarksView.m |  8 ++++++++
 README.md                      |  2 ++
 4 files changed, 41 insertions(+), 7 deletions(-)

diff --git a/Coach Marks/DDCircleView.h b/Coach Marks/DDCircleView.h
index 4d2c3a8..8a961fc 100644
--- a/Coach Marks/DDCircleView.h	
+++ b/Coach Marks/DDCircleView.h	
@@ -8,9 +8,15 @@
 
 #import <UIKit/UIKit.h>
 
+enum EnumCircleSwipeDirection {
+    kCircleSwipeLeftToRight,
+    kCircleSwipeRightToLeft
+};
+
 @interface DDCircleView : UIView
 
 @property BOOL animationShouldStop;
+@property enum EnumCircleSwipeDirection swipeDirection;
 
 - (void)swipeInFrame:(CGRect)frame;
 
diff --git a/Coach Marks/DDCircleView.m b/Coach Marks/DDCircleView.m
index a711e85..b0de0e5 100644
--- a/Coach Marks/DDCircleView.m	
+++ b/Coach Marks/DDCircleView.m	
@@ -39,32 +39,50 @@ - (void)userTap:(UITapGestureRecognizer *)recognizer {
 - (void)swipeInFrame:(CGRect)frame
 {
     [self centerYPositioninView:self inFrame:frame];
-    [self animateSwipeRight];
+    [self animateSwipe];
 }
 
-- (void)animateSwipeRight
+- (void)animateSwipe
 {
     if (!_animationShouldStop) {
-        self.transform = CGAffineTransformMakeScale(2, 2);
+        CGAffineTransform scale = CGAffineTransformMakeScale(2, 2);
+        CGAffineTransform translateRight = CGAffineTransformMakeTranslation(260, 0);
+        if (self.swipeDirection == kCircleSwipeLeftToRight) {
+            self.transform = scale;
+        } else {
+            // Start on the right hand side as well as scaling
+            self.transform = CGAffineTransformConcat(translateRight, scale);
+        }
         self.alpha = 0.0f;
         [UIView animateKeyframesWithDuration:0.6 delay:0.3 options:0
                                   animations:^{
                                       // Fade In
-                                      self.transform = CGAffineTransformMakeScale(1, 1);
+                                      if (self.swipeDirection == kCircleSwipeLeftToRight) {
+                                          // Scale down to normal
+                                          self.transform = CGAffineTransformMakeScale(1, 1);
+                                      } else {
+                                          // Start on the right hand side
+                                          self.transform = translateRight;
+                                      }
                                       self.alpha = 1.0f;
                                   }
                                   completion:^(BOOL finished){
                                       // End
                                       [UIView animateWithDuration:1.0
                                                        animations:^{
-                                                           // Slide Right
-                                                           self.transform = CGAffineTransformMakeTranslation(260, 0);
+                                                           if (self.swipeDirection == kCircleSwipeLeftToRight) {
+                                                               // Slide Right
+                                                               self.transform = translateRight;
+                                                           } else {
+                                                               // Slide left
+                                                               self.transform = CGAffineTransformIdentity;
+                                                           }
                                                            // Fade Out
                                                            self.alpha = 0.0f;
                                                        }
                                                        completion:^(BOOL finished) {
                                                            // End
-                                                           [self performSelector:@selector(animateSwipeRight)];
+                                                           [self performSelector:@selector(animateSwipe)];
                                                        }];
                                   }];
         
diff --git a/Coach Marks/DDCoachMarksView.m b/Coach Marks/DDCoachMarksView.m
index 43b9b46..e67ecd8 100755
--- a/Coach Marks/DDCoachMarksView.m	
+++ b/Coach Marks/DDCoachMarksView.m	
@@ -212,6 +212,12 @@ - (void)showSwipeGesture
     CGRect frame = [[coachMarkInfo objectForKey:@"rect"] CGRectValue];
     BOOL shouldAnimateSwipe = [[coachMarkInfo objectForKey:@"swipe"] boolValue];
     
+    NSString* swipeDirection = [coachMarkInfo objectForKey:@"direction"];
+    enum EnumCircleSwipeDirection direction = kCircleSwipeLeftToRight;
+    if ((swipeDirection != nil) && ([swipeDirection isEqualToString:@"righttoleft"])) {
+        direction = kCircleSwipeRightToLeft;
+    }
+    
     // if next animation doesn't need swipe
     // remove current swiping circle if one exists
     if (self.animatingCircle) {
@@ -230,6 +236,8 @@ - (void)showSwipeGesture
             [self addSubview:self.animatingCircle];
         }
         
+        self.animatingCircle.swipeDirection = direction;
+        
         [self.animatingCircle swipeInFrame:frame];
     }
 }
diff --git a/README.md b/README.md
index 92c7c28..a642cbc 100644
--- a/README.md
+++ b/README.md
@@ -91,6 +91,8 @@ Text that goes in the bubbles
  Stands for 'point of interest'. You can define a whole region using the `@"rect"` value, but defining a different CGRect value here makes the bubble caption position itself under the POI rect.
 * `@"swipe"`
  Use "YES" here if you want to show a row swipe gesture on a table view cell. Disabled by default.
+* `@"direction"`
+ Direction that swipe gestures should animate in. The default is `@"lefttoright"` but you can also specify `@"righttoleft"`.
 
 ## DDCoachMarksViewDelegate