lobianco · kkostritsynax · Apr 6, 2018
diff --git a/ALAlertBanner/ALAlertBanner.h b/ALAlertBanner/ALAlertBanner.h
@@ -25,13 +25,6 @@
 #import <UIKit/UIKit.h>
 #import <Foundation/Foundation.h>
 
-typedef enum {
-    ALAlertBannerStyleSuccess = 0,
-    ALAlertBannerStyleFailure,
-    ALAlertBannerStyleNotify,
-    ALAlertBannerStyleWarning,
-} ALAlertBannerStyle;
-
 typedef enum {
     ALAlertBannerPositionTop = 0,
     ALAlertBannerPositionBottom,
@@ -47,9 +40,11 @@ typedef enum {
     ALAlertBannerStateHidden
 } ALAlertBannerState;
 
+@protocol ALBannerStyleConfigurationProtocol;
+
 @interface ALAlertBanner : UIView
 
-@property (nonatomic, readonly) ALAlertBannerStyle style;
+@property (nonatomic, readonly) id<ALBannerStyleConfigurationProtocol> styleConfiguration;
 @property (nonatomic, readonly) ALAlertBannerPosition position;
 @property (nonatomic, readonly) ALAlertBannerState state;
 
@@ -88,19 +83,26 @@ typedef enum {
  */
 @property (nonatomic) CGFloat bannerOpacity;
 
+/**
+ Dissable default initializer.
+
+ Use [ALAlertBanner alertBannerForView:styleConfiguration:position:title] and etc.
+ */
+- (instancetype)init  NS_UNAVAILABLE;
+
 /**
  The default methods to customize and display a banner.
  */
-+ (ALAlertBanner *)alertBannerForView:(UIView *)view style:(ALAlertBannerStyle)style position:(ALAlertBannerPosition)position title:(NSString *)title;
++ (ALAlertBanner *)alertBannerForView:(UIView *)view styleConfiguration:(id<ALBannerStyleConfigurationProtocol>)styleConfiguration position:(ALAlertBannerPosition)position title:(NSString *)title;
 
-+ (ALAlertBanner *)alertBannerForView:(UIView *)view style:(ALAlertBannerStyle)style position:(ALAlertBannerPosition)position title:(NSString *)title subtitle:(NSString *)subtitle;
++ (ALAlertBanner *)alertBannerForView:(UIView *)view styleConfiguration:(id<ALBannerStyleConfigurationProtocol>)styleConfiguration position:(ALAlertBannerPosition)position title:(NSString *)title subtitle:(NSString *)subtitle;
 
 /**
  Optional method to handle a tap on a banner.
 
  By default, supplying a tap handler will disable allowTapToDismiss on this particular banner. If you want to reinstate this behavior alongside the tap handler, you can call `[[ALAlertBannerManager sharedManager] hideAlertBanner:alertBanner];` in tappedBlock().
  */
-+ (ALAlertBanner *)alertBannerForView:(UIView *)view style:(ALAlertBannerStyle)style position:(ALAlertBannerPosition)position title:(NSString *)title subtitle:(NSString *)subtitle tappedBlock:(void(^)(ALAlertBanner *alertBanner))tappedBlock;
++ (ALAlertBanner *)alertBannerForView:(UIView *)view styleConfiguration:(id<ALBannerStyleConfigurationProtocol>)styleConfiguration position:(ALAlertBannerPosition)position title:(NSString *)title subtitle:(NSString *)subtitle tappedBlock:(void(^)(ALAlertBanner *alertBanner))tappedBlock;
 
 /**
  Show the alert banner

diff --git a/ALAlertBanner/ALAlertBanner.m b/ALAlertBanner/ALAlertBanner.m
@@ -34,6 +34,7 @@ this software and associated documentation files (the "Software"), to deal in
 #import <QuartzCore/QuartzCore.h>
 #import "ALAlertBanner+Private.h"
 #import "ALAlertBannerManager.h"
+#import "ALBannerStyleConfiguration.h"
 
 static NSString * const kShowAlertBannerKey = @"showAlertBannerKey";
 static NSString * const kHideAlertBannerKey = @"hideAlertBannerKey";
@@ -114,7 +115,6 @@ @interface ALAlertBanner () {
     ALAlertBannerManager *manager;
 }
 
-@property (nonatomic, assign) ALAlertBannerStyle style;
 @property (nonatomic, assign) ALAlertBannerPosition position;
 @property (nonatomic, assign) ALAlertBannerState state;
 @property (nonatomic) NSTimeInterval fadeOutDuration;
@@ -123,15 +123,16 @@ @interface ALAlertBanner () {
 @property (nonatomic, strong) UILabel *subtitleLabel;
 @property (nonatomic, strong) UIImageView *styleImageView;
 @property (nonatomic) CGRect parentFrameUponCreation;
+@property (nonatomic, readwrite) id<ALBannerStyleConfigurationProtocol> styleConfiguration;
 
 @end
 
 @implementation ALAlertBanner
 
-- (id)init {
+- (instancetype)init:(id<ALBannerStyleConfigurationProtocol>)styleConfiguration {
     self = [super init];
     if (self) {
-
+        self.styleConfiguration = styleConfiguration;
         [self commonInit];
 
     }
@@ -172,58 +173,37 @@ - (void)setupSubviews {
     _titleLabel = [[UILabel alloc] init];
     _titleLabel.backgroundColor = [UIColor clearColor];
     _titleLabel.font = [UIFont fontWithName:@"HelveticaNeue-Bold" size:13.f];
-    _titleLabel.textColor = [UIColor colorWithWhite:1.f alpha:0.9f];
+    _titleLabel.textColor = self.styleConfiguration.titleTextColor;
     _titleLabel.textAlignment = NSTextAlignmentLeft;
     _titleLabel.numberOfLines = 1;
     _titleLabel.lineBreakMode = NSLineBreakByTruncatingTail;
     _titleLabel.layer.shadowColor = [UIColor blackColor].CGColor;
     _titleLabel.layer.shadowOffset = CGSizeMake(0.f, -1.f);
-    _titleLabel.layer.shadowOpacity = 0.3f;
+    _titleLabel.layer.shadowOpacity = self.styleConfiguration.labelsShadowOpacity;
     _titleLabel.layer.shadowRadius = 0.f;
     [self addSubview:_titleLabel];
 
     _subtitleLabel = [[UILabel alloc] init];
     _subtitleLabel.backgroundColor = [UIColor clearColor];
     _subtitleLabel.font = [UIFont fontWithName:@"HelveticaNeue" size:10.f];
-    _subtitleLabel.textColor = [UIColor colorWithWhite:1.f alpha:0.9f];
+    _subtitleLabel.textColor = self.styleConfiguration.subtitleTextColor;
     _subtitleLabel.textAlignment = NSTextAlignmentLeft;
     _subtitleLabel.numberOfLines = 0;
     _subtitleLabel.lineBreakMode = NSLineBreakByWordWrapping;
     _subtitleLabel.layer.shadowColor = [UIColor blackColor].CGColor;
     _subtitleLabel.layer.shadowOffset = CGSizeMake(0.f, -1.f);
-    _subtitleLabel.layer.shadowOpacity = 0.3f;
+    _subtitleLabel.layer.shadowOpacity = self.styleConfiguration.labelsShadowOpacity;
     _subtitleLabel.layer.shadowRadius = 0.f;
     [self addSubview:_subtitleLabel];
 }
 
 # pragma mark -
 # pragma mark Custom Setters & Getters
 
--(void)setStyle:(ALAlertBannerStyle)style {
-    _style = style;
+-(void)setStyleConfiguration:(id<ALBannerStyleConfigurationProtocol>)styleConfiguration {
+    _styleConfiguration = styleConfiguration;
 
-    switch (style) {
-        case ALAlertBannerStyleSuccess:
-            self.styleImageView.image = [UIImage imageNamed:@"bannerSuccess.png"];
-            break;
-
-        case ALAlertBannerStyleFailure:
-            self.styleImageView.image = [UIImage imageNamed:@"bannerFailure.png"];
-            break;
-
-        case ALAlertBannerStyleNotify:
-            self.styleImageView.image = [UIImage imageNamed:@"bannerNotify.png"];
-            break;
-
-        case ALAlertBannerStyleWarning:
-            self.styleImageView.image = [UIImage imageNamed:@"bannerAlert.png"];
-
-            //tone the shadows down a little for the yellow background
-            self.titleLabel.layer.shadowOpacity = 0.2f;
-            self.subtitleLabel.layer.shadowOpacity = 0.2f;
-
-            break;
-    }
+    self.styleImageView.image = self.styleConfiguration.image;
 }
 
 - (void)setShowShadow:(BOOL)showShadow {
@@ -240,9 +220,7 @@ - (void)setShowShadow:(BOOL)showShadow {
         self.layer.shadowPath = [UIBezierPath bezierPathWithRect:shadowPath].CGPath;
 
         self.fadeInDuration = 0.15f;
-    }
-
-    else {
+    } else {
         newShadowRadius = 0.f;
         self.layer.shadowRadius = 0.f;
         self.layer.shadowOffset = CGSizeZero;
@@ -296,16 +274,16 @@ + (void)forceHideAllAlertBannersInView:(UIView *)view {
     [[ALAlertBannerManager sharedManager] forceHideAllAlertBannersInView:view];
 }
 
-+ (ALAlertBanner *)alertBannerForView:(UIView *)view style:(ALAlertBannerStyle)style position:(ALAlertBannerPosition)position title:(NSString *)title {
-    return [self alertBannerForView:view style:style position:position title:title subtitle:nil tappedBlock:nil];
++ (ALAlertBanner *)alertBannerForView:(UIView *)view styleConfiguration:(id<ALBannerStyleConfigurationProtocol>)styleConfiguration position:(ALAlertBannerPosition)position title:(NSString *)title {
+    return [self alertBannerForView:view styleConfiguration:styleConfiguration position:position title:title subtitle:nil tappedBlock:nil];
 }
 
-+ (ALAlertBanner *)alertBannerForView:(UIView *)view style:(ALAlertBannerStyle)style position:(ALAlertBannerPosition)position title:(NSString *)title subtitle:(NSString *)subtitle {
-    return [self alertBannerForView:view style:style position:position title:title subtitle:subtitle tappedBlock:nil];
++ (ALAlertBanner *)alertBannerForView:(UIView *)view styleConfiguration:(id<ALBannerStyleConfigurationProtocol>)styleConfiguration position:(ALAlertBannerPosition)position title:(NSString *)title subtitle:(NSString *)subtitle {
+    return [self alertBannerForView:view styleConfiguration:styleConfiguration position:position title:title subtitle:subtitle tappedBlock:nil];
 }
 
-+ (ALAlertBanner *)alertBannerForView:(UIView *)view style:(ALAlertBannerStyle)style position:(ALAlertBannerPosition)position title:(NSString *)title subtitle:(NSString *)subtitle tappedBlock:(void (^)(ALAlertBanner *alertBanner))tappedBlock {
-    ALAlertBanner *alertBanner = [ALAlertBanner createAlertBannerForView:view style:style position:position title:title subtitle:subtitle];
++ (ALAlertBanner *)alertBannerForView:(UIView *)view styleConfiguration:(id<ALBannerStyleConfigurationProtocol>)styleConfiguration position:(ALAlertBannerPosition)position title:(NSString *)title subtitle:(NSString *)subtitle tappedBlock:(void (^)(ALAlertBanner *alertBanner))tappedBlock {
+    ALAlertBanner *alertBanner = [ALAlertBanner createAlertBannerForView:view styleConfiguration:styleConfiguration position:position title:title subtitle:subtitle];
     alertBanner.allowTapToDismiss = tappedBlock ? NO : alertBanner.allowTapToDismiss;
     alertBanner.tappedBlock = tappedBlock;
     return alertBanner;
@@ -314,15 +292,14 @@ + (ALAlertBanner *)alertBannerForView:(UIView *)view style:(ALAlertBannerStyle)s
 # pragma mark -
 # pragma mark Internal Class Methods
 
-+ (ALAlertBanner *)createAlertBannerForView:(UIView *)view style:(ALAlertBannerStyle)style position:(ALAlertBannerPosition)position title:(NSString *)title subtitle:(NSString *)subtitle {
-    ALAlertBanner *alertBanner = [[ALAlertBanner alloc] init];
++ (ALAlertBanner *)createAlertBannerForView:(UIView *)view styleConfiguration:(id<ALBannerStyleConfigurationProtocol>)styleConfiguration position:(ALAlertBannerPosition)position title:(NSString *)title subtitle:(NSString *)subtitle {
+    ALAlertBanner *alertBanner = [[ALAlertBanner alloc] init:styleConfiguration];
 
     if (![view isKindOfClass:[UIWindow class]] && position == ALAlertBannerPositionUnderNavBar)
         [[NSException exceptionWithName:@"Wrong ALAlertBannerPosition For View Type" reason:@"ALAlertBannerPositionUnderNavBar should only be used if you are presenting the alert banner on the AppDelegate window. Use ALAlertBannerPositionTop or ALAlertBannerPositionBottom for normal UIViews" userInfo:nil] raise];
 
     alertBanner.titleLabel.text = !title ? @" " : title;
     alertBanner.subtitleLabel.text = subtitle;
-    alertBanner.style = style;
     alertBanner.position = position;
     alertBanner.state = ALAlertBannerStateHidden;
 
@@ -696,21 +673,8 @@ - (void)updatePositionAfterRotationWithY:(CGFloat)yPos animated:(BOOL)animated {
 - (void)drawRect:(CGRect)rect {
     CGContextRef context = UIGraphicsGetCurrentContext();
 
-    UIColor *fillColor;
-    switch (self.style) {
-        case ALAlertBannerStyleSuccess:
-            fillColor = [UIColor colorWithRed:(77/255.0) green:(175/255.0) blue:(67/255.0) alpha:1.f];
-            break;
-        case ALAlertBannerStyleFailure:
-            fillColor = [UIColor colorWithRed:(173/255.0) green:(48/255.0) blue:(48/255.0) alpha:1.f];
-            break;
-        case ALAlertBannerStyleNotify:
-            fillColor = [UIColor colorWithRed:(48/255.0) green:(110/255.0) blue:(173/255.0) alpha:1.f];
-            break;
-        case ALAlertBannerStyleWarning:
-            fillColor = [UIColor colorWithRed:(211/255.0) green:(209/255.0) blue:(100/255.0) alpha:1.f];
-            break;
-    }
+    UIColor *fillColor;    
+    fillColor = self.styleConfiguration.fillColor;
 
     NSArray *colorsArray = [NSArray arrayWithObjects:(id)[fillColor CGColor], (id)[[fillColor darkerColor] CGColor], nil];
     CGColorSpaceRef colorSpace =  CGColorSpaceCreateDeviceRGB();
@@ -740,21 +704,7 @@ - (id)nextAvailableViewController:(id)view {
 }
 
 - (NSString *)description {
-    NSString *styleString;
-    switch (self.style) {
-        case ALAlertBannerStyleSuccess:
-            styleString = @"ALAlertBannerStyleSuccess";
-            break;
-        case ALAlertBannerStyleFailure:
-            styleString = @"ALAlertBannerStyleFailure";
-            break;
-        case ALAlertBannerStyleNotify:
-            styleString = @"ALAlertBannerStyleNotify";
-            break;
-        case ALAlertBannerStyleWarning:
-            styleString = @"ALAlertBannerStyleWarning";
-            break;
-    }
+    NSString *styleString = self.styleConfiguration.styleString;
     NSString *positionString;
     switch (self.position) {
         case ALAlertBannerPositionTop:

diff --git a/ALAlertBanner/ALBannerStyleConfiguration.h b/ALAlertBanner/ALBannerStyleConfiguration.h
@@ -0,0 +1,18 @@
+
+#import <Foundation/Foundation.h>
+
+@protocol ALBannerStyleConfigurationProtocol <NSObject>
+@property (nonatomic, readonly) UIColor *fillColor;
+@property (nonatomic, readonly) UIColor *titleTextColor;
+@property (nonatomic, readonly) UIColor *subtitleTextColor;
+@property (nonatomic, readonly) UIImage *image;
+@property (nonatomic, readonly) CGFloat labelsShadowOpacity;
+@property (nonatomic, readonly) NSString *styleString;
+@end
+
+@interface ALBannerStyleConfiguration : NSObject <ALBannerStyleConfigurationProtocol>
++ (ALBannerStyleConfiguration *)failureStyleConfiguration;
++ (ALBannerStyleConfiguration *)successStyleConfiguration;
++ (ALBannerStyleConfiguration *)notifyStyleConfiguration;
++ (ALBannerStyleConfiguration *)warningStyleConfiguration;
+@end
diff --git a/ALAlertBanner/ALBannerStyleConfiguration.m b/ALAlertBanner/ALBannerStyleConfiguration.m
@@ -0,0 +1,75 @@
+
+#import "ALBannerStyleConfiguration.h"
+
+@interface ALBannerStyleConfiguration ()
+@property (nonatomic, strong) UIColor *fillColor;
+@property (nonatomic, strong) UIColor *titleTextColor;
+@property (nonatomic, strong) UIColor *subtitleTextColor;
+@property (nonatomic, strong) UIImage *image;
+@property (nonatomic, assign) CGFloat labelsShadowOpacity;
+@property (nonatomic, strong) NSString *styleString;
+@end
+
+@implementation ALBannerStyleConfiguration
+
++ (ALBannerStyleConfiguration *)failureStyleConfiguration {
+    static ALBannerStyleConfiguration *failureConfiguration;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        failureConfiguration = [[ALBannerStyleConfiguration alloc] init];
+        failureConfiguration.fillColor = [UIColor colorWithRed:(173/255.0) green:(48/255.0) blue:(48/255.0) alpha:1.f];
+        failureConfiguration.titleTextColor = [UIColor colorWithWhite:1.f alpha:0.9f];
+        failureConfiguration.subtitleTextColor = [UIColor colorWithWhite:1.f alpha:0.9f];
+        failureConfiguration.image = [UIImage imageNamed:@"bannerFailure.png"];
+        failureConfiguration.labelsShadowOpacity = 0.3;
+        failureConfiguration.styleString = @"ALAlertBannerStyleFailure";
+    });
+    return failureConfiguration;
+}
+
++ (ALBannerStyleConfiguration *)successStyleConfiguration {
+    static ALBannerStyleConfiguration *successConfiguration;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        successConfiguration = [[ALBannerStyleConfiguration alloc] init];
+        successConfiguration.fillColor = [UIColor colorWithRed:(77/255.0) green:(175/255.0) blue:(67/255.0) alpha:1.f];
+        successConfiguration.titleTextColor = [UIColor colorWithWhite:1.f alpha:0.9f];
+        successConfiguration.subtitleTextColor = [UIColor colorWithWhite:1.f alpha:0.9f];
+        successConfiguration.image = [UIImage imageNamed:@"bannerSuccess.png"];
+        successConfiguration.labelsShadowOpacity = 0.3;
+        successConfiguration.styleString = @"ALAlertBannerStyleSuccess";
+    });
+    return successConfiguration;
+}
+
++ (ALBannerStyleConfiguration *)notifyStyleConfiguration {
+    static ALBannerStyleConfiguration *notifyConfiguration;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        notifyConfiguration = [[ALBannerStyleConfiguration alloc] init];
+        notifyConfiguration.fillColor = [UIColor colorWithRed:(48/255.0) green:(110/255.0) blue:(173/255.0) alpha:1.f];
+        notifyConfiguration.titleTextColor = [UIColor colorWithWhite:1.f alpha:0.9f];
+        notifyConfiguration.subtitleTextColor = [UIColor colorWithWhite:1.f alpha:0.9f];
+        notifyConfiguration.image = [UIImage imageNamed:@"bannerNotify.png"];
+        notifyConfiguration.labelsShadowOpacity = 0.3;
+        notifyConfiguration.styleString = @"ALAlertBannerStyleNotify";
+    });
+    return notifyConfiguration;
+}
+
++ (ALBannerStyleConfiguration *)warningStyleConfiguration {
+    static ALBannerStyleConfiguration *warningConfiguration;
+    static dispatch_once_t onceToken;
+    dispatch_once(&onceToken, ^{
+        warningConfiguration = [[ALBannerStyleConfiguration alloc] init];
+        warningConfiguration.fillColor = [UIColor colorWithRed:(211/255.0) green:(209/255.0) blue:(100/255.0) alpha:1.f];
+        warningConfiguration.titleTextColor = [UIColor colorWithWhite:1.f alpha:0.9f];
+        warningConfiguration.subtitleTextColor = [UIColor colorWithWhite:1.f alpha:0.9f];
+        warningConfiguration.image = [UIImage imageNamed:@"bannerAlert.png"];
+        warningConfiguration.labelsShadowOpacity = 0.2;
+        warningConfiguration.styleString = @"ALAlertBannerStyleWarning";
+    });
+    return warningConfiguration;
+}
+
+@end
diff --git a/ALAlertBannerDemo/ALAlertBannerDemo.xcodeproj/project.pbxproj b/ALAlertBannerDemo/ALAlertBannerDemo.xcodeproj/project.pbxproj
@@ -29,6 +29,7 @@
 		4FC799DF17BC33D0000AEC49 /* bannerNotify.png in Resources */ = {isa = PBXBuildFile; fileRef = 4FC799DB17BC33D0000AEC49 /* bannerNotify.png */; };
 		4FC799E017BC33D0000AEC49 /* bannerSuccess.png in Resources */ = {isa = PBXBuildFile; fileRef = 4FC799DC17BC33D0000AEC49 /* bannerSuccess.png */; };
 		4FFBA6F917BE970700C2A7F2 /* ALAlertBannerManager.m in Sources */ = {isa = PBXBuildFile; fileRef = 4FFBA6F817BE970700C2A7F2 /* ALAlertBannerManager.m */; };
+		D654E67B2077742100B8B286 /* ALBannerStyleConfiguration.m in Sources */ = {isa = PBXBuildFile; fileRef = D654E67A2077742100B8B286 /* ALBannerStyleConfiguration.m */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -63,6 +64,8 @@
 		4FC799DC17BC33D0000AEC49 /* bannerSuccess.png */ = {isa = PBXFileReference; lastKnownFileType = image.png; path = bannerSuccess.png; sourceTree = "<group>"; };
 		4FFBA6F717BE970700C2A7F2 /* ALAlertBannerManager.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ALAlertBannerManager.h; sourceTree = "<group>"; };
 		4FFBA6F817BE970700C2A7F2 /* ALAlertBannerManager.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ALAlertBannerManager.m; sourceTree = "<group>"; };
+		D654E6792077742100B8B286 /* ALBannerStyleConfiguration.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = ALBannerStyleConfiguration.h; sourceTree = "<group>"; };
+		D654E67A2077742100B8B286 /* ALBannerStyleConfiguration.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = ALBannerStyleConfiguration.m; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -140,6 +143,8 @@
 		4FC799C617BC078A000AEC49 /* ALAlertBanner */ = {
 			isa = PBXGroup;
 			children = (
+				D654E6792077742100B8B286 /* ALBannerStyleConfiguration.h */,
+				D654E67A2077742100B8B286 /* ALBannerStyleConfiguration.m */,
 				4FC799CA17BC078B000AEC49 /* ALAlertBanner.h */,
 				4FC799CB17BC078B000AEC49 /* ALAlertBanner.m */,
 				4FFBA6F717BE970700C2A7F2 /* ALAlertBannerManager.h */,
@@ -243,6 +248,7 @@
 				4FC799B317BC072A000AEC49 /* main.m in Sources */,
 				4FC799B717BC072A000AEC49 /* AppDelegate.m in Sources */,
 				4FC799C517BC0758000AEC49 /* ViewController.m in Sources */,
+				D654E67B2077742100B8B286 /* ALBannerStyleConfiguration.m in Sources */,
 				4FC799CD17BC078B000AEC49 /* ALAlertBanner.m in Sources */,
 				4FFBA6F917BE970700C2A7F2 /* ALAlertBannerManager.m in Sources */,
 			);