Implement provider did end call.

Signed-off-by: Ivan Sein <ivan@nextcloud.com>

VideoCalls/CallKitManager.h

@@ -9,6 +9,7 @@
 #import <Foundation/Foundation.h>
 
 extern NSString * const CallKitManagerDidAnswerCallNotification;
+extern NSString * const CallKitManagerDidEndCallNotification;
 
 @interface CallKitManager : NSObject
 

VideoCalls/CallKitManager.m

@@ -13,7 +13,8 @@
 #import "NCAudioController.h"
 #import "NCRoomsManager.h"
 
-NSString * const CallKitManagerDidAnswerCallNotification  = @"CallKitManagerDidAnswerCallNotification";
+NSString * const CallKitManagerDidAnswerCallNotification    = @"CallKitManagerDidAnswerCallNotification";
+NSString * const CallKitManagerDidEndCallNotification       = @"CallKitManagerDidEndCallNotification";
 
 @interface CallKitManager () <CXProviderDelegate>
 
@@ -116,6 +117,10 @@ NSString * const CallKitManagerDidAnswerCallNotification  = @"CallKitManagerDidA
 
 - (void)provider:(CXProvider *)provider performEndCallAction:(CXEndCallAction *)action
 {
+    NSDictionary *userInfo = [NSDictionary dictionaryWithObject:_currentCallToken forKey:@"roomToken"];
+    [[NSNotificationCenter defaultCenter] postNotificationName:CallKitManagerDidEndCallNotification
+                                                        object:self
+                                                      userInfo:userInfo];
     self.currentCallUUID = nil;
     self.currentCallToken = nil;
     [action fulfill];

VideoCalls/CallViewController.m

@@ -25,6 +25,7 @@
 #import "NCRoomsManager.h"
 #import "NCSettingsController.h"
 #import "UIImageView+AFNetworking.h"
+#import "CallKitManager.h"
 
 typedef NS_ENUM(NSInteger, CallState) {
     CallStateJoining,
@@ -84,6 +85,7 @@ typedef NS_ENUM(NSInteger, CallState) {
     [AvatarBackgroundImageView setSharedImageDownloader:imageDownloader];
     
     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didJoinRoom:) name:NCRoomsManagerDidJoinRoomNotification object:nil];
+    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(providerDidEndCall:) name:CallKitManagerDidEndCallNotification object:nil];
     
     return self;
 }
@@ -177,6 +179,16 @@ typedef NS_ENUM(NSInteger, CallState) {
     }
 }
 
+- (void)providerDidEndCall:(NSNotification *)notification
+{
+    NSString *roomToken = [notification.userInfo objectForKey:@"roomToken"];
+    if (![roomToken isEqualToString:_room.token]) {
+        return;
+    }
+    
+    [self hangup];
+}
+
 #pragma mark - Local video
 
 - (void)setLocalVideoRect