- Update

Extensions/XEP-0085/XMPPMessage+XEP_0085.h

@@ -0,0 +1,23 @@
+#import <Foundation/Foundation.h>
+#import "XMPPMessage.h"
+
+
+@interface XMPPMessage (XEP_0085)
+
+- (NSString *)chatState;
+
+- (BOOL)hasChatState;
+
+- (BOOL)hasActiveChatState;
+- (BOOL)hasComposingChatState;
+- (BOOL)hasPausedChatState;
+- (BOOL)hasInactiveChatState;
+- (BOOL)hasGoneChatState;
+
+- (void)addActiveChatState;
+- (void)addComposingChatState;
+- (void)addPausedChatState;
+- (void)addInactiveChatState;
+- (void)addGoneChatState;
+
+@end

Extensions/XEP-0085/XMPPMessage+XEP_0085.m

@@ -0,0 +1,69 @@
+#import "XMPPMessage+XEP_0085.h"
+#import "NSXMLElement+XMPP.h"
+
+
+static NSString *const xmlns_chatstates = @"http://jabber.org/protocol/chatstates";
+
+@implementation XMPPMessage (XEP_0085)
+
+- (NSString *)chatState{
+    return [[[self elementsForXmlns:xmlns_chatstates] lastObject] name];
+}
+
+- (BOOL)hasChatState
+{
+	return ([[self elementsForXmlns:xmlns_chatstates] count] > 0);
+}
+
+- (BOOL)hasActiveChatState
+{
+	return ([self elementForName:@"active" xmlns:xmlns_chatstates] != nil);
+}
+
+- (BOOL)hasComposingChatState
+{
+	return ([self elementForName:@"composing" xmlns:xmlns_chatstates] != nil);
+}
+
+- (BOOL)hasPausedChatState
+{
+	return ([self elementForName:@"paused" xmlns:xmlns_chatstates] != nil);
+}
+
+- (BOOL)hasInactiveChatState
+{
+	return ([self elementForName:@"inactive" xmlns:xmlns_chatstates] != nil);
+}
+
+- (BOOL)hasGoneChatState
+{
+	return ([self elementForName:@"gone" xmlns:xmlns_chatstates] != nil);
+}
+
+
+- (void)addActiveChatState
+{
+	[self addChild:[NSXMLElement elementWithName:@"active" xmlns:xmlns_chatstates]];
+}
+
+- (void)addComposingChatState
+{
+	[self addChild:[NSXMLElement elementWithName:@"composing" xmlns:xmlns_chatstates]];
+}
+
+- (void)addPausedChatState
+{
+	[self addChild:[NSXMLElement elementWithName:@"paused" xmlns:xmlns_chatstates]];
+}
+
+- (void)addInactiveChatState
+{
+	[self addChild:[NSXMLElement elementWithName:@"inactive" xmlns:xmlns_chatstates]];
+}
+
+- (void)addGoneChatState
+{
+	[self addChild:[NSXMLElement elementWithName:@"gone" xmlns:xmlns_chatstates]];
+}
+
+@end