Merge pull request #13 from arnauddorgans/release/0.4.2

0.4.2

.swift-version

@@ -1 +0,0 @@
-5.0

.swiftpm/xcode/package.xcworkspace/contents.xcworkspacedata

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>

InfiniteLayout.podspec

@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'InfiniteLayout'
-  s.version          = '0.4.1'
+  s.version          = '0.4.2'
   s.summary          = 'Horizontal and Vertical infinite scrolling feature for UICollectionView with Paging, NSProxy delegate, Reactive extension'
 
 # This description is used to generate tags and improve search results.
@@ -39,19 +39,23 @@ Horizontal and Vertical infinite scrolling feature for UICollectionView with Pag
 
   # s.public_header_files = 'Pod/Classes/**/*.h'
   # s.frameworks = 'UIKit', 'MapKit'
-  s.dependency 'CocoaProxy', '~> 0'
+  s.swift_versions = ['5.0', '5.1']
+
 
   s.default_subspec = 'Core'
-
     s.subspec 'Core' do |core|
-        core.source_files = 'InfiniteLayout/Classes/**/*'
+        core.source_files = 'Sources/InfiniteLayout/**/*'
+        core.dependency 'InfiniteLayout/CocoaProxy'
+        core.exclude_files = '**/*/SPMBridge.swift'
+    end
+    s.subspec 'CocoaProxy' do |core|
+        core.source_files = 'Sources/CocoaProxy/**/*'
     end
-
     s.subspec 'Rx' do |rx|
-        rx.dependency 'InfiniteLayout/Core', '~> 0'
+        rx.dependency 'InfiniteLayout/Core'
         rx.dependency 'RxSwift', '~> 5'
         rx.dependency 'RxCocoa', '~> 5'
         rx.dependency 'RxDataSources', '~> 4'
-        rx.source_files = 'InfiniteLayout/Rx/**/*'
+        rx.source_files = 'Sources/Rx/**/*'
     end
 end

Package.swift

@@ -0,0 +1,30 @@
+// swift-tools-version:5.0
+// The swift-tools-version declares the minimum version of Swift required to build this package.
+
+import PackageDescription
+
+let package = Package(
+  name: "InfiniteLayout",
+  platforms: [.iOS(.v8), .tvOS(.v9)],
+  products: [
+    // Products define the executables and libraries produced by a package, and make them visible to other packages.
+    .library(
+      name: "InfiniteLayout",
+      targets: ["InfiniteLayout"]),
+  ],
+  dependencies: [
+    // Dependencies declare other packages that this package depends on.
+    // .package(url: /* package url */, from: "1.0.0"),
+  ],
+  targets: [
+    // Targets are the basic building blocks of a package. A target can define a module or a test suite.
+    // Targets can depend on other targets in this package, and on products in packages which this package depends on.
+    .target(
+      name: "CocoaProxy",
+      dependencies: [],
+      publicHeadersPath: "./"),
+    .target(
+      name: "InfiniteLayout",
+      dependencies: ["CocoaProxy"])
+  ]
+)

README.md

@@ -1,9 +1,10 @@
 # InfiniteLayout
 
 [![CI Status](http://img.shields.io/travis/arnauddorgans/InfiniteLayout.svg?style=flat)](https://travis-ci.org/arnauddorgans/InfiniteLayout)
-[![Version](https://img.shields.io/cocoapods/v/InfiniteLayout.svg?style=flat)](http://cocoapods.org/pods/InfiniteLayout)
 [![License](https://img.shields.io/cocoapods/l/InfiniteLayout.svg?style=flat)](http://cocoapods.org/pods/InfiniteLayout)
 [![Platform](https://img.shields.io/cocoapods/p/InfiniteLayout.svg?style=flat)](http://cocoapods.org/pods/InfiniteLayout)
+[![Version](https://img.shields.io/cocoapods/v/InfiniteLayout.svg?style=flat)](http://cocoapods.org/pods/InfiniteLayout)
+[![Swift Package Manager compatible](https://img.shields.io/badge/Swift%20Package%20Manager-compatible-brightgreen.svg)](https://github.com/apple/swift-package-manager)
 
 <img src="https://github.com/arnauddorgans/InfiniteLayout/raw/master/horizontal.gif" width="250" height="540"><img src="https://github.com/arnauddorgans/InfiniteLayout/raw/master/vertical.gif" width="250" height="540"><img src="https://github.com/arnauddorgans/InfiniteLayout/raw/master/custom.gif" width="250" height="540">
 
@@ -12,10 +13,10 @@
 
 To run the example project, clone the repo, and run `pod install` from the Example directory first.
 
-## Requirements
-
 ## Installation
 
+### [CocoaPods](https://guides.cocoapods.org/using/using-cocoapods.html)
+
 InfiniteLayout is available through [CocoaPods](http://cocoapods.org). To install
 it, simply add the following line to your Podfile:
 
@@ -23,6 +24,27 @@ it, simply add the following line to your Podfile:
 pod 'InfiniteLayout'
 ```
 
+
+### [Swift Package Manager](https://github.com/apple/swift-package-manager)
+
+Create a `Package.swift` file.
+
+```swift
+// swift-tools-version:5.0
+
+import PackageDescription
+
+let package = Package(
+  name: "InfiniteLayoutTestProject",
+  dependencies: [
+    .package(url: "https://github.com/arnauddorgans/InfiniteLayout.git", from: "0.4.2")
+  ],
+  targets: [
+    .target(name: "InfiniteLayoutTestProject", dependencies: ["InfiniteLayout"])
+  ]
+)
+```
+
 ## Usage
 
 ```swift
@@ -85,7 +107,7 @@ self.infiniteCollectionView.preferredCenteredIndexPath = nil // center the close
 InfiniteCollectionView provide an **infiniteDelegate** protocol used to get the centered IndexPath, usefull if you want to use an InfiniteCollectionView like a Picker.
 
 ```swift
-func infiniteCollectionView(_ infiniteCollectionView: InfiniteCollectionView, didChangeCenteredIndexPath centeredIndexPath: IndexPath?)
+func infiniteCollectionView(_ infiniteCollectionView: InfiniteCollectionView, didChangeCenteredIndexPath from: IndexPath?, to: IndexPath?)
 ```
 
 ### Rx

Sources/CocoaProxy/CocoaProxy.h

@@ -0,0 +1,20 @@
+//
+//  CocoaProxy.h
+//  CocoaProxy
+//
+//  Created by Arnaud Dorgans on 27/12/2017.
+//
+
+#import <Foundation/Foundation.h>
+
+@interface CocoaProxy : NSProxy
+
+- (instancetype _Nonnull)init;
+- (instancetype _Nonnull)initWithProxies:(nonnull NSArray<id<NSObject>>*)proxies;
+
+- (NSArray<id<NSObject>> *_Nonnull)proxiesForSelector:(SEL _Nonnull )aSelector;
+
+@property (nonatomic, strong) NSArray<id<NSObject>>* _Nonnull proxies;
+@property (nonatomic, copy) BOOL (^ _Nullable proxyFilter)(id<NSObject> _Nonnull proxy, SEL _Nonnull selector);
+
+@end

Sources/CocoaProxy/CocoaProxy.m

@@ -0,0 +1,80 @@
+//
+//  CocoaProxy.m
+//  CocoaProxy
+//
+//  Created by Arnaud Dorgans on 27/12/2017.
+//
+
+#import "CocoaProxy.h"
+
+@interface CocoaProxy () { }
+
+@property (nonatomic, strong) NSPointerArray *pointerArray;
+
+@end
+
+@implementation CocoaProxy
+
+- (instancetype _Nonnull)initWithProxies:(nonnull NSArray<NSObject*>*)proxies {
+    [self setProxies: proxies];
+    return self;
+}
+
+- (instancetype _Nonnull)init {
+    return [self initWithProxies: @[]];
+}
+
+- (BOOL)respondsToSelector:(SEL)aSelector
+{
+    return ([self methodSignatureForSelector: aSelector] != nil);
+}
+
+- (NSMethodSignature *)methodSignatureForSelector:(SEL)aSelector
+{
+    for (NSObject* proxy in [self proxiesForSelector: aSelector]) {
+        if ([proxy respondsToSelector: aSelector]) {
+            return [proxy methodSignatureForSelector: aSelector];
+        }
+    }
+    return nil;
+}
+
+- (NSArray<id<NSObject>> *_Nonnull)proxiesForSelector:(SEL _Nonnull )aSelector
+{
+    if (self.proxyFilter) {
+        NSPredicate *predicate = [NSPredicate predicateWithBlock:^BOOL(id  _Nullable evaluatedObject, NSDictionary<NSString *,id> * _Nullable bindings) {
+            return self.proxyFilter(evaluatedObject, aSelector);
+        }];
+        return [self.proxies filteredArrayUsingPredicate: predicate];
+    }
+    return self.proxies;
+}
+
+- (void)forwardInvocation:(NSInvocation *)invocation
+{
+    for (NSObject* proxy in [self proxiesForSelector: invocation.selector]) {
+        [self invokeInvocation: invocation onProxy: proxy];
+    }
+}
+
+- (BOOL)invokeInvocation:(NSInvocation *)invocation onProxy:(id<NSObject>)proxy
+{
+    if ([proxy respondsToSelector: invocation.selector]) {
+        [invocation invokeWithTarget: proxy];
+        return YES;
+    }
+    return NO;
+}
+
+- (void)setProxies:(NSArray<id<NSObject>> *)proxies {
+    self.pointerArray = [NSPointerArray weakObjectsPointerArray];
+    for (NSObject* proxy in proxies) {
+        [self.pointerArray addPointer: (void *)proxy];
+    }
+}
+
+- (NSArray<id<NSObject>> *)proxies {
+    return self.pointerArray.allObjects;
+}
+
+@end

Sources/InfiniteLayout/InfiniteCollectionView.swift

@@ -8,8 +8,8 @@
 import UIKit
 
 @objc public protocol InfiniteCollectionViewDelegate {
-    
-    @objc optional func infiniteCollectionView(_ infiniteCollectionView: InfiniteCollectionView, didChangeCenteredIndexPath centeredIndexPath: IndexPath?)
+
+    @objc optional func infiniteCollectionView(_ infiniteCollectionView: InfiniteCollectionView, didChangeCenteredIndexPath from: IndexPath?, to: IndexPath?)
 }
 
 open class InfiniteCollectionView: UICollectionView {
@@ -170,8 +170,9 @@ extension InfiniteCollectionView: UICollectionViewDelegate {
         
         let preferredVisibleIndexPath = infiniteLayout.preferredVisibleLayoutAttributes()?.indexPath
         if self.centeredIndexPath != preferredVisibleIndexPath {
+            let previousCenteredIndexPath = self.centeredIndexPath
             self.centeredIndexPath = preferredVisibleIndexPath
-            self.infiniteDelegate?.infiniteCollectionView?(self, didChangeCenteredIndexPath: preferredVisibleIndexPath)
+            self.infiniteDelegate?.infiniteCollectionView?(self, didChangeCenteredIndexPath: previousCenteredIndexPath, to: self.centeredIndexPath)
         }
     }
     

Sources/InfiniteLayout/InfiniteCollectionViewProxy.swift

@@ -6,7 +6,6 @@
 //
 
 import UIKit
-import CocoaProxy
 
 class InfiniteCollectionViewProxy<T: NSObjectProtocol>: CocoaProxy {
     

Sources/InfiniteLayout/SPMBridge.swift

@@ -0,0 +1,8 @@
+//
+//  InfiniteCollectionView.swift
+//  InfiniteLayout
+//
+//  Created by Arnaud Dorgans on 05/09/2019.
+//
+
+@_exported import CocoaProxy

Sources/Rx/InfiniteCollectionView+Rx.swift

@@ -38,7 +38,7 @@ extension Reactive where Base: InfiniteCollectionView {
     }
     
     public var itemCentered: ControlEvent<IndexPath?> {
-        let source = infiniteDelegate.sentMessage(#selector(InfiniteCollectionViewDelegate.infiniteCollectionView(_:didChangeCenteredIndexPath:)))
+        let source = infiniteDelegate.sentMessage(#selector(InfiniteCollectionViewDelegate.infiniteCollectionView(_:didChangeCenteredIndexPath:to:)))
             .map { $0.last as? IndexPath }
         return ControlEvent(events: source)
     }