Further refactoring changes.

ARPlayer/Categories/NSDateFormatter+Helpers.h

@@ -12,7 +12,7 @@ NS_ASSUME_NONNULL_BEGIN
 
 @interface NSDateFormatter (Helpers)
 
-+ (NSString *)toString:(CMTime)time;
++ (NSString *)currentTimeStringForTime:(CMTime)time;
 
 @end
 

ARPlayer/Categories/NSDateFormatter+Helpers.m

@@ -12,14 +12,32 @@
 
 @implementation NSDateFormatter (Helpers)
 
-+ (NSString *)toString:(CMTime)time {
++ (instancetype)dateFormatter {
+    static NSDateFormatter *dateFormatter;
+    static dispatch_once_t onceToken;
+
+    dispatch_once(&onceToken, ^{
+        dateFormatter = [NSDateFormatter new];
+        [dateFormatter setTimeZone:[NSTimeZone timeZoneWithName:@"UTC"]];
+    });
+
+    return dateFormatter;
+}
+
++ (NSString *)currentTimeStringForTime:(CMTime)time {
     Float64 seconds = CMTimeGetSeconds(time);
     NSDate *date = [[NSDate alloc] initWithTimeIntervalSince1970:seconds];
-    NSDateFormatter *dateFormatter = [NSDateFormatter new];
-    [dateFormatter setDateFormat:(NSUInteger)(seconds / 3600) > 0 ? @"HH:mm:ss" : @"mm:ss"];
-    [dateFormatter setTimeZone:[NSTimeZone timeZoneWithName:@"UTC"]];
+    NSDateFormatter *dateFormatter = [NSDateFormatter dateFormatter];
+
+    NSString *dateFormat = @"mm:ss";
+    NSUInteger hours = seconds / 3600;
+    if (hours > 0) {
+        dateFormat = @"HH:mm:ss";
+    }
+
+    [dateFormatter setDateFormat:dateFormat];
     NSString *currentTime = [dateFormatter stringFromDate:date];
-
+    
     return currentTime;
 }
 

ARPlayer/Categories/SCNMaterial+Colors.h → ARPlayer/Categories/SCNMaterial+Contents.h

@@ -1,5 +1,5 @@
 //
-//  SCNMaterial+Colors.h
+//  SCNMaterial+Contents.h
 //  ARPlayer
 //
 //  Created by Maxim Makhun on 03/03/2019.
@@ -11,7 +11,7 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-@interface SCNMaterial (Colors)
+@interface SCNMaterial (Contents)
 
 + (instancetype)materialWithColor:(UIColor *)color;
 

ARPlayer/Categories/SCNMaterial+Colors.m → ARPlayer/Categories/SCNMaterial+Contents.m

@@ -1,14 +1,14 @@
 //
-//  SCNMaterial+Colors.m
+//  SCNMaterial+Contents.m
 //  ARPlayer
 //
 //  Created by Maxim Makhun on 03/03/2019.
 //  Copyright © 2019 Maxim Makhun. All rights reserved.
 //
 
-#import "SCNMaterial+Colors.h"
+#import "SCNMaterial+Contents.h"
 
-@implementation SCNMaterial (Colors)
+@implementation SCNMaterial (Contents)
 
 + (SCNMaterial *)materialWithColor:(UIColor *)color {
     SCNMaterial *material = [SCNMaterial new];

ARPlayer/Categories/UIImpactFeedbackGenerator+Helpers.h

@@ -0,0 +1,23 @@
+//
+//  UIImpactFeedbackGenerator+Helpers.h
+//  ARPlayer
+//
+//  Created by Maxim Makhun on 04/03/2019.
+//  Copyright © 2019 Maxim Makhun. All rights reserved.
+//
+
+@import UIKit;
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface UIImpactFeedbackGenerator (Helpers)
+
++ (void)lightImpactOccurred;
+
++ (void)mediumImpactOccurred;
+
++ (void)heavyImpactOccurred;
+
+@end
+
+NS_ASSUME_NONNULL_END

ARPlayer/Categories/UIImpactFeedbackGenerator+Helpers.m

@@ -0,0 +1,29 @@
+//
+//  UIImpactFeedbackGenerator+Helpers.m
+//  ARPlayer
+//
+//  Created by Maxim Makhun on 04/03/2019.
+//  Copyright © 2019 Maxim Makhun. All rights reserved.
+//
+
+#import "UIImpactFeedbackGenerator+Helpers.h"
+
+@implementation UIImpactFeedbackGenerator (Helpers)
+
++ (UIImpactFeedbackGenerator *)impactFeedbackGeneratorWithStyle:(UIImpactFeedbackStyle)style {
+    return [[UIImpactFeedbackGenerator alloc] initWithStyle:style];
+}
+
++ (void)lightImpactOccurred {
+    [[UIImpactFeedbackGenerator impactFeedbackGeneratorWithStyle:UIImpactFeedbackStyleLight] impactOccurred];
+}
+
++ (void)mediumImpactOccurred {
+    [[UIImpactFeedbackGenerator impactFeedbackGeneratorWithStyle:UIImpactFeedbackStyleMedium] impactOccurred];
+}
+
++ (void)heavyImpactOccurred {
+    [[UIImpactFeedbackGenerator impactFeedbackGeneratorWithStyle:UIImpactFeedbackStyleHeavy] impactOccurred];
+}
+
+@end

ARPlayer/Categories/UIViewController+Helpers.m

@@ -11,14 +11,16 @@
 @implementation UIViewController (Helpers)
 
 - (void)showMessage:(NSString *)message {
-    UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"ARPlayer"
-                                                                             message:message
-                                                                      preferredStyle:UIAlertControllerStyleAlert];
-    UIAlertAction *action = [UIAlertAction actionWithTitle:@"OK"
-                                                     style:UIAlertActionStyleDefault
-                                                   handler:nil];
-    [alertController addAction:action];
-    [self presentViewController:alertController animated:YES completion:nil];
+    dispatch_async(dispatch_get_main_queue(), ^{
+        UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"ARPlayer"
+                                                                                 message:message
+                                                                          preferredStyle:UIAlertControllerStyleAlert];
+        UIAlertAction *action = [UIAlertAction actionWithTitle:@"OK"
+                                                         style:UIAlertActionStyleDefault
+                                                       handler:nil];
+        [alertController addAction:action];
+        [self presentViewController:alertController animated:YES completion:nil];
+    });
 }
 
 @end

ARPlayer/Gestures/NodeInsertionHandler.h

@@ -0,0 +1,19 @@
+//
+//  NodeInsertionHandler.h
+//  ARPlayer
+//
+//  Created by Maxim Makhun on 04/03/2019.
+//  Copyright © 2019 Maxim Makhun. All rights reserved.
+//
+
+@import UIKit;
+
+#import "GestureHandleProtocol.h"
+
+NS_ASSUME_NONNULL_BEGIN
+
+@interface NodeInsertionHandler : NSObject <GestureHandleProtocol>
+
+@end
+
+NS_ASSUME_NONNULL_END

ARPlayer/Gestures/NodeInsertionHandler.m

@@ -0,0 +1,41 @@
+//
+//  NodeInsertionHandler.m
+//  ARPlayer
+//
+//  Created by Maxim Makhun on 04/03/2019.
+//  Copyright © 2019 Maxim Makhun. All rights reserved.
+//
+
+@import ARKit;
+
+#import "NodeInsertionHandler.h"
+
+// Nodes
+#import "MediaPlayerNode.h"
+
+// Utils
+#import "PlaylistService.h"
+
+@implementation NodeInsertionHandler
+
+- (void)handleGesture:(UIGestureRecognizer *)gesture inSceneView:(ARSCNView *)sceneView {
+    NSAssert([gesture isKindOfClass:[UILongPressGestureRecognizer class]], @"Different class type is expected.");
+
+    if (gesture.state == UIGestureRecognizerStateBegan) {
+        CGPoint tapPoint = [gesture locationInView:sceneView];
+        NSArray<ARHitTestResult *> *arHitTestResults = [sceneView hitTest:tapPoint
+                                                                    types:ARHitTestResultTypeExistingPlaneUsingExtent];
+
+        if (arHitTestResults.count != 0) {
+            ARHitTestResult *hitResult = [arHitTestResults firstObject];
+            simd_float4 column = hitResult.anchor.transform.columns[3];
+
+            MediaPlayerNode *mediaPlayerNode = [[MediaPlayerNode alloc] initWithPlaylist:[PlaylistService playlist]];
+            mediaPlayerNode.position = SCNVector3Make(column.x, column.y, column.z);
+            [mediaPlayerNode play];
+            [sceneView.scene.rootNode addChildNode:mediaPlayerNode];
+        }
+    }
+}
+
+@end