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Classes/JabberClientAppDelegate.h

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+//
+//  JabberClientAppDelegate.h
+//  JabberClient
+//
+//  Created by cesarerocchi on 8/3/11.
+//  Copyright 2011 studiomagnolia.com. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+
+#import "XMPPRoster.h"
+#import "XMPP.h"
+#import "SMChatDelegate.h"
+#import "SMMessageDelegate.h"
+
+@class SMBuddyListViewController;
+
+@interface JabberClientAppDelegate : NSObject <UIApplicationDelegate> {
+    UIWindow *window;
+    SMBuddyListViewController *viewController;
+
+	XMPPStream *xmppStream;
+	XMPPRoster *xmppRoster;
+
+	NSString *password;
+
+	BOOL isOpen;
+
+	__weak NSObject <SMChatDelegate> *_chatDelegate;
+	__weak NSObject <SMMessageDelegate> *_messageDelegate;
+}
+
+@property (nonatomic, retain) IBOutlet UIWindow *window;
+@property (nonatomic, retain) IBOutlet SMBuddyListViewController *viewController;
+
+
+@property (nonatomic, readonly) XMPPStream *xmppStream;
+@property (nonatomic, readonly) XMPPRoster *xmppRoster;
+
+@property (nonatomic, assign) id  _chatDelegate;  
+@property (nonatomic, assign) id  _messageDelegate; 
+
+- (BOOL)connect;
+- (void)disconnect;
+
+@end
+

Classes/JabberClientAppDelegate.m

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+#import "SMBuddyListViewController.h"
+
+
+@interface JabberClientAppDelegate()
+
+- (void)setupStream;
+
+- (void)goOnline;
+- (void)goOffline;
+
+@end
+
+
+@implementation JabberClientAppDelegate
+
+@synthesize xmppStream;
+@synthesize xmppRoster;
+@synthesize window;
+@synthesize viewController;
+@synthesize _chatDelegate;
+@synthesize _messageDelegate;
+
+
+- (void)applicationWillResignActive:(UIApplication *)application {
+
+	[self disconnect];
+
+}
+
+- (void)applicationDidBecomeActive:(UIApplication *)application {
+
+	//[self setupStream];
+	[self connect];
+
+}
+
+- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {    
+
+    self.window.rootViewController = self.viewController;
+    [self.window makeKeyAndVisible];
+
+    return YES;
+}
+
+
+- (void)setupStream {
+
+	xmppStream = [[XMPPStream alloc] init];
+	[xmppStream addDelegate:self delegateQueue:dispatch_get_main_queue()];
+
+
+}
+
+- (void)goOnline {
+	XMPPPresence *presence = [XMPPPresence presence];
+	[[self xmppStream] sendElement:presence];
+}
+
+- (void)goOffline {
+	XMPPPresence *presence = [XMPPPresence presenceWithType:@"unavailable"];
+	[[self xmppStream] sendElement:presence];
+}
+
+- (BOOL)connect {
+
+	[self setupStream];
+
+	NSString *jabberID = [[NSUserDefaults standardUserDefaults] stringForKey:@"userID"];
+	NSString *myPassword = [[NSUserDefaults standardUserDefaults] stringForKey:@"userPassword"];
+
+	if (![xmppStream isDisconnected]) {
+		return YES;
+	}
+
+
+	if (jabberID == nil || myPassword == nil) {
+
+		return NO;
+	}
+
+	[xmppStream setMyJID:[XMPPJID jidWithString:jabberID]];
+	password = myPassword;
+
+	NSError *error = nil;
+	if (![xmppStream connect:&error])
+	{
+		UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Error" 
+															message:[NSString stringWithFormat:@"Can't connect to server %@", [error localizedDescription]]  
+														   delegate:nil 
+												  cancelButtonTitle:@"Ok" 
+												  otherButtonTitles:nil];
+		[alertView show];
+		[alertView release];
+
+
+		return NO;
+	}
+
+	return YES;
+}
+
+- (void)disconnect {
+
+	[self goOffline];
+	[xmppStream disconnect];
+	[_chatDelegate didDisconnect];
+}
+
+
+
+#pragma mark -
+#pragma mark XMPP delegates 
+
+
+- (void)xmppStreamDidConnect:(XMPPStream *)sender {
+
+	isOpen = YES;
+	NSError *error = nil;
+	[[self xmppStream] authenticateWithPassword:password error:&error];
+
+}
+
+- (void)xmppStreamDidAuthenticate:(XMPPStream *)sender {
+
+	[self goOnline];
+
+}
+
+
+- (BOOL)xmppStream:(XMPPStream *)sender didReceiveIQ:(XMPPIQ *)iq {
+
+	return NO;
+
+}
+
+- (void)xmppStream:(XMPPStream *)sender didReceiveMessage:(XMPPMessage *)message {
+
+
+	NSString *msg = [[message elementForName:@"body"] stringValue];
+	NSString *from = [[message attributeForName:@"from"] stringValue];
+
+	NSMutableDictionary *m = [[NSMutableDictionary alloc] init];
+	[m setObject:msg forKey:@"msg"];
+	[m setObject:from forKey:@"sender"];
+
+	[_messageDelegate newMessageReceived:m];
+	[m release];
+
+}
+
+- (void)xmppStream:(XMPPStream *)sender didReceivePresence:(XMPPPresence *)presence {
+
+	NSString *presenceType = [presence type]; // online/offline
+	NSString *myUsername = [[sender myJID] user];
+	NSString *presenceFromUser = [[presence from] user];
+
+	if (![presenceFromUser isEqualToString:myUsername]) {
+
+		if ([presenceType isEqualToString:@"available"]) {
+
+			[_chatDelegate newBuddyOnline:[NSString stringWithFormat:@"%@@%@", presenceFromUser, @"jerry.local"]];
+
+		} else if ([presenceType isEqualToString:@"unavailable"]) {
+
+			[_chatDelegate buddyWentOffline:[NSString stringWithFormat:@"%@@%@", presenceFromUser, @"jerry.local"]];
+
+		}
+
+	}
+
+}
+
+
+- (void)dealloc {
+
+	[xmppStream removeDelegate:self];
+	[xmppRoster removeDelegate:self];
+
+	[xmppStream disconnect];
+	[xmppStream release];
+	[xmppRoster release];
+
+	[password release];
+
+    [viewController release];
+    [window release];
+    [super dealloc];
+}
+
+
+@end

Classes/SMBuddyListViewController.h

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+//
+//  jabberClientViewController.h
+//  jabberClient
+//
+//  Created by cesarerocchi on 7/13/11.
+//  Copyright 2011 studiomagnolia.com. All rights reserved.
+//
+
+#import <UIKit/UIKit.h>
+#import "JabberClientAppDelegate.h"
+#import "SMLoginViewController.h"
+#import "SMChatViewController.h"
+#import "SMChatDelegate.h"
+
+@interface SMBuddyListViewController : UIViewController <UITableViewDelegate, UITableViewDataSource, SMChatDelegate> {
+
+	UITableView *tView;
+	NSMutableArray *onlineBuddies;
+
+	UIView		*addBuddyView;	
+	UITextField *buddyField;
+
+
+}
+
+@property (nonatomic,retain) IBOutlet UITableView *tView;
+
+@property (nonatomic,retain) IBOutlet UIView *addBuddyView;
+@property (nonatomic,retain) IBOutlet UITextField *buddyField;
+
+
+
+- (IBAction) addBuddy;
+- (IBAction) showLogin;
+
+
+@end
+