First try at version 2.

CONTRIBUTORS

@@ -0,0 +1 @@
+- Nam Kennic wrote the initial implementation for -setBackgroundColor:, on what was then the LFGlassView.

LiveFrost.podspec

@@ -1,16 +1,16 @@
 Pod::Spec.new do |s|
   s.name         = "LiveFrost"
-  s.version      = "1.1.2"
+  s.version      = "2.0"
   s.summary      = "Real time blurring."
   s.homepage     = "https://github.com/radi/LiveFrost"
   s.license      = 'MIT'
   s.author       = {
     "Evadne Wu" => "ev@radi.ws",
     "Nicholas Gabriel Levin" => "nl@radi.ws"
   }
-  s.source       = { :git => "https://github.com/radi/LiveFrost.git", :tag => "1.1.2" }
+  s.source       = { :git => "https://github.com/radi/LiveFrost.git", :tag => "2.0" }
   s.platform     = :ios, '6.0'
-  s.source_files = 'LiveFrost', 'LiveFrost/**/*.{h,m}'
+  s.source_files = 'LiveFrost', 'LiveFrost/**/*.{h,m,c}'
   s.exclude_files = 'LiveFrost/Exclude'
   s.frameworks = 'Accelerate', 'QuartzCore', 'UIKit'
   s.requires_arc = true

LiveFrost/LFDefines.c

@@ -0,0 +1,26 @@
+//
+// Copyright (c) 2014 Evadne Wu and Nicholas Levin
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+//
+
+#include "LFDefines.h"
+#include <math.h>
+
+const CGPoint LFPointNull = (CGPoint){INFINITY, INFINITY};

LiveFrost/LFDefines.h

@@ -0,0 +1,30 @@
+//
+// Copyright (c) 2014 Evadne Wu and Nicholas Levin
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+//
+
+#ifndef LiveFrost_LFDefines_h
+#define LiveFrost_LFDefines_h
+
+#include <CoreGraphics/CGGeometry.h>
+
+extern const CGPoint LFPointNull;
+
+#endif

LiveFrost/LFDisplayBridge.h

@@ -20,18 +20,14 @@
 // THE SOFTWARE.
 //
 
-#import <QuartzCore/QuartzCore.h>
-
-@protocol LFDisplayBridgeTriggering <NSObject>
-- (void) refresh;
-@end
+@import QuartzCore.CADisplayLink;
+#import "LFDisplayBridgeTriggering.h"
 
 @interface LFDisplayBridge : NSObject <LFDisplayBridgeTriggering>
 
 + (instancetype) sharedInstance;
 
-@property (nonatomic, readonly, assign) CFMutableSetRef subscribedViews;
-- (void) addSubscribedViewsObject:(UIView<LFDisplayBridgeTriggering> *)object;
-- (void) removeSubscribedViewsObject:(UIView<LFDisplayBridgeTriggering> *)object;
+- (void) addSubscribedObject:(id<LFDisplayBridgeTriggering>)object;
+- (void) removeSubscribedObject:(id<LFDisplayBridgeTriggering>)object;
 
 @end

LiveFrost/LFDisplayBridge.m

@@ -22,24 +22,24 @@
 
 #import "LFDisplayBridge.h"
 
-void LF_refreshAllSubscribedViewsApplierFunction(const void *value, void *context);
+void LF_refreshAllSubscribedObjectsApplierFunction(const void *value, void *context);
 
 @interface LFDisplayBridge ()
 
-@property (nonatomic, readwrite, assign) CFMutableSetRef subscribedViews;
+@property (nonatomic, readwrite, assign) CFMutableSetRef subscribedObjects;
 @property (nonatomic, readonly, strong) CADisplayLink *displayLink;
 
 @end
 
-void LF_refreshAllSubscribedViewsApplierFunction(const void *value, void *context) {
-	[(__bridge UIView<LFDisplayBridgeTriggering> *)value refresh];
+void LF_refreshAllSubscribedObjectsApplierFunction(const void *value, void *context) {
+	[(__bridge id<LFDisplayBridgeTriggering>)value refresh];
 }
 
 #if !__has_feature(objc_arc)
-	#error This implementation file must be compiled with Objective-C ARC.
+#error This implementation file must be compiled with Objective-C ARC.
 
-	#error Compile this file with the -fobjc-arc flag under your target's Build Phases,
-	#error   or convert your project to Objective-C ARC.
+#error Compile this file with the -fobjc-arc flag under your target's Build Phases,
+#error	 or convert your project to Objective-C ARC.
 #endif
 
 @implementation LFDisplayBridge
@@ -55,32 +55,32 @@ + (instancetype) sharedInstance {
 
 - (id) init {
 	if (self = [super init]) {
-		_subscribedViews = CFSetCreateMutable(kCFAllocatorDefault, 0, NULL);
+		_subscribedObjects = CFSetCreateMutable(kCFAllocatorDefault, 0, NULL);
 		_displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(handleDisplayLink:)];
 		[_displayLink addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
 	}
 	return self;
 }
 
-- (void) addSubscribedViewsObject:(UIView<LFDisplayBridgeTriggering> *)object {
-	CFSetAddValue(_subscribedViews, (__bridge const void*)object);
+- (void) dealloc {
+	[_displayLink invalidate];
+	CFRelease(_subscribedObjects);
 }
 
-- (void) removeSubscribedViewsObject:(UIView<LFDisplayBridgeTriggering> *)object {
-	CFSetRemoveValue(_subscribedViews, (__bridge const void*)object);
+- (void) addSubscribedObject:(id<LFDisplayBridgeTriggering>)object {
+	CFSetAddValue(_subscribedObjects, (__bridge const void*)object);
 }
 
-- (void) handleDisplayLink:(CADisplayLink *)displayLink {
-	[self refresh];
+- (void) removeSubscribedObject:(id<LFDisplayBridgeTriggering>)object {
+	CFSetRemoveValue(_subscribedObjects, (__bridge const void*)object);
 }
 
-- (void) dealloc {
-	[_displayLink invalidate];
-	CFRelease(_subscribedViews);
+- (void) handleDisplayLink:(CADisplayLink *)displayLink {
+	[self refresh];
 }
 
 - (void) refresh {
-	CFSetApplyFunction(_subscribedViews, LF_refreshAllSubscribedViewsApplierFunction, NULL);
+	CFSetApplyFunction(_subscribedObjects, LF_refreshAllSubscribedObjectsApplierFunction, NULL);
 }
 
 @end

LiveFrost/LFDisplayBridgeTriggering.h

@@ -0,0 +1,25 @@
+//
+// Copyright (c) 2013-2014 Evadne Wu and Nicholas Levin
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+//
+
+@protocol LFDisplayBridgeTriggering <NSObject>
+- (void) refresh;
+@end

LiveFrost/LFGlassLayer.h

@@ -0,0 +1,45 @@
+//
+// Copyright (c) 2013-2014 Evadne Wu and Nicholas Levin
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+//
+
+@import Accelerate.vImage;
+@import QuartzCore.CALayer;
+#import "LFDisplayBridgeTriggering.h"
+
+@interface LFGlassLayer : CALayer <LFDisplayBridgeTriggering>
+
+@property (nonatomic, assign) CGFloat blurRadius;
+@property (nonatomic, assign) CGFloat scaleFactor;
+
+@property (nonatomic, assign) NSUInteger frameInterval;
+
+- (BOOL) blurOnceIfPossible;
+
+// optional properties for greater customization
+@property (nonatomic, weak) CALayer *customBlurTargetLayer;
+@property (nonatomic, assign) CGRect customBlurBounds;
+@property (nonatomic, assign) CGPoint customBlurPosition;
+@property (nonatomic, assign) CGPoint customBlurAnchorPoint;
+@property (nonatomic, assign) CGRect customBlurFrame;
+
+- (void) resetCustomPositioning;
+
+@end