Initial roughed out API, using a target/selector event listener style.

Perhaps NSNotification propagation could come later?

.gitattributes

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+*.pbxproj -crlf -diff -merge

.gitignore

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+# xcode noise
+build/*
+*.pbxuser
+*.mode1v3
+*.mode*
+
+# osx noise
+.DS_Store
+profile

Classes/Pusher/PTEventListener.h

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+//
+//  PTEventListener.h
+//  PusherEvents
+//
+//  Created by Luke Redpath on 22/03/2010.
+//  Copyright 2010 LJR Software Limited. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+
+@interface PTEventListener : NSObject {
+  id target;
+  SEL selector;
+}
+- (id)initWithTarget:(id)_target selector:(SEL)_selector;
+- (void)dispatch:(id)eventData;
+@end

Classes/Pusher/PTEventListener.m

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+//
+//  PTEventListener.m
+//  PusherEvents
+//
+//  Created by Luke Redpath on 22/03/2010.
+//  Copyright 2010 LJR Software Limited. All rights reserved.
+//
+
+#import "PTEventListener.h"
+
+
+@implementation PTEventListener
+
+- (id)initWithTarget:(id)_target selector:(SEL)_selector;
+{
+  if (self = [super init]) {
+    target = [_target retain];
+    selector = selector;
+  }
+  return self;
+}
+
+- (void)dealloc;
+{
+  [target release];
+  [super dealloc];
+}
+
+- (void)dispatch:(id)eventData;
+{
+  [target performSelectorOnMainThread:selector withObject:eventData waitUntilDone:NO];
+}
+
+@end

Classes/Pusher/PTPusher.h

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+//
+//  PTPusher.h
+//  PusherEvents
+//
+//  Created by Luke Redpath on 22/03/2010.
+//  Copyright 2010 LJR Software Limited. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+
+@interface PTPusher : NSObject {
+  NSString *APIKey;
+  NSString *channel;
+  NSMutableDictionary *eventListeners;
+}
+@property (nonatomic, readonly) NSString *APIKey;
+@property (nonatomic, readonly) NSString *channel;
+
+- (id)initWithKey:(NSString *)key channel:(NSString *)channelName;
+- (void)addEventListener:(NSString *)event target:(id)target selector:(SEL)selector;
+@end
+
+

Classes/Pusher/PTPusher.m

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+//
+//  PTPusher.m
+//  PusherEvents
+//
+//  Created by Luke Redpath on 22/03/2010.
+//  Copyright 2010 LJR Software Limited. All rights reserved.
+//
+
+#import "PTPusher.h"
+#import "PTEventListener.h"
+
+@implementation PTPusher
+
+@synthesize APIKey;
+@synthesize channel;
+
+- (id)initWithKey:(NSString *)key channel:(NSString *)channelName;
+{
+  if (self = [super init]) {
+    APIKey  = [key copy];
+    channel = [channelName copy];
+    eventListeners = [[NSMutableDictionary alloc] init];
+  }
+  return self;
+}
+
+- (void)dealloc;
+{
+  [eventListeners release];
+  [APIKey release];
+  [channel release];
+  [super dealloc];
+}
+
+#pragma mark -
+#pragma mark Event listening
+
+- (void)addEventListener:(NSString *)eventName target:(id)target selector:(SEL)selector;
+{
+  PTEventListener *listener = [[PTEventListener alloc] initWithTarget:target selector:selector];
+
+  NSMutableArray *listeners = [eventListeners objectForKey:eventName];
+  if (listeners == nil) {
+    listeners = [[[NSMutableArray alloc] init] autorelease];
+  }
+  [listeners addObject:listener];
+  [listener release];
+}
+
+#pragma mark -
+#pragma mark Event handling
+
+- (void)handleEvent:(NSString *)eventName eventData:(id)data;
+{
+  NSArray *listenersForEvent = [eventListeners objectForKey:eventName];
+  for (PTEventListener *listener in listenersForEvent) {
+    [listener dispatch:data];
+  }
+}
+
+@end

Classes/PusherEventsAppDelegate.h

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+//
+//  PusherEventsAppDelegate.h
+//  PusherEvents
+//
+//  Created by Luke Redpath on 22/03/2010.
+//  Copyright LJR Software Limited 2010. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@class PusherEventsViewController;
+
+@interface PusherEventsAppDelegate : NSObject <UIApplicationDelegate> {
+    UIWindow *window;
+    PusherEventsViewController *viewController;
+}
+
+@property (nonatomic, retain) IBOutlet UIWindow *window;
+@property (nonatomic, retain) IBOutlet PusherEventsViewController *viewController;
+
+@end
+

Classes/PusherEventsAppDelegate.m

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+//
+//  PusherEventsAppDelegate.m
+//  PusherEvents
+//
+//  Created by Luke Redpath on 22/03/2010.
+//  Copyright LJR Software Limited 2010. All rights reserved.
+//
+
+#import "PusherEventsAppDelegate.h"
+#import "PusherEventsViewController.h"
+
+@implementation PusherEventsAppDelegate
+
+@synthesize window;
+@synthesize viewController;
+
+
+- (void)applicationDidFinishLaunching:(UIApplication *)application {    
+
+    // Override point for customization after app launch    
+    [window addSubview:viewController.view];
+    [window makeKeyAndVisible];
+}
+
+
+- (void)dealloc {
+    [viewController release];
+    [window release];
+    [super dealloc];
+}
+
+
+@end

Classes/PusherEventsViewController.h

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+//
+//  PusherEventsViewController.h
+//  PusherEvents
+//
+//  Created by Luke Redpath on 22/03/2010.
+//  Copyright LJR Software Limited 2010. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+@interface PusherEventsViewController : UIViewController {
+
+}
+
+@end
+

Classes/PusherEventsViewController.m

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+//
+//  PusherEventsViewController.m
+//  PusherEvents
+//
+//  Created by Luke Redpath on 22/03/2010.
+//  Copyright LJR Software Limited 2010. All rights reserved.
+//
+
+#import "PusherEventsViewController.h"
+
+@implementation PusherEventsViewController
+
+
+
+/*
+// The designated initializer. Override to perform setup that is required before the view is loaded.
+- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
+    if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
+        // Custom initialization
+    }
+    return self;
+}
+*/
+
+/*
+// Implement loadView to create a view hierarchy programmatically, without using a nib.
+- (void)loadView {
+}
+*/
+
+
+/*
+// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
+- (void)viewDidLoad {
+    [super viewDidLoad];
+}
+*/
+
+
+/*
+// Override to allow orientations other than the default portrait orientation.
+- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
+    // Return YES for supported orientations
+    return (interfaceOrientation == UIInterfaceOrientationPortrait);
+}
+*/
+
+- (void)didReceiveMemoryWarning {
+	// Releases the view if it doesn't have a superview.
+    [super didReceiveMemoryWarning];
+
+	// Release any cached data, images, etc that aren't in use.
+}
+
+- (void)viewDidUnload {
+	// Release any retained subviews of the main view.
+	// e.g. self.myOutlet = nil;
+}
+
+
+- (void)dealloc {
+    [super dealloc];
+}
+
+@end