79023ee190
Reviewed By: bhamodi Differential Revision: D33331422 fbshipit-source-id: 016e8dcc0c0c7f1fc353a348b54fda0d5e2ddc01
83 lines
2.4 KiB
Objective-C
83 lines
2.4 KiB
Objective-C
/*
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#if FB_SONARKIT_ENABLED
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#import "SKTouch.h"
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#import "SKNodeDescriptor.h"
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@implementation SKTouch {
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SKTouchFinishDelegate _onFinish;
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CGPoint _currentTouchPoint;
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id<SKDescriptorMapperProtocol> _descriptorMapper;
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NSMutableArray<id<NSObject>>* _nodeStack;
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NSMutableArray<NSMutableDictionary*>* _treeStack;
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}
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- (instancetype)initWithTouchPoint:(CGPoint)touchPoint
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withRootNode:(id<NSObject>)node
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withDescriptorMapper:(id<SKDescriptorMapperProtocol>)mapper
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finishWithBlock:(SKTouchFinishDelegate)finishBlock {
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if (self = [super init]) {
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_onFinish = finishBlock;
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_currentTouchPoint = touchPoint;
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_descriptorMapper = mapper;
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_nodeStack = [NSMutableArray new];
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[_nodeStack addObject:node];
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_treeStack = [NSMutableArray new];
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[_treeStack addObject:[[NSMutableDictionary alloc] init]];
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}
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return self;
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}
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- (void)continueWithChildIndex:(NSUInteger)childIndex
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withOffset:(CGPoint)offset {
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_currentTouchPoint.x -= offset.x;
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_currentTouchPoint.y -= offset.y;
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id<NSObject> currentNode = _nodeStack.lastObject;
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SKNodeDescriptor* descriptor =
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[_descriptorMapper descriptorForClass:[currentNode class]];
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id<NSObject> nextNode = [descriptor childForNode:currentNode
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atIndex:childIndex];
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[_nodeStack addObject:nextNode];
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[_treeStack addObject:[[NSMutableDictionary alloc] init]];
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descriptor = [_descriptorMapper descriptorForClass:[nextNode class]];
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NSString* currentId = [descriptor identifierForNode:nextNode];
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[descriptor hitTest:self forNode:nextNode];
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// After finish this component
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_currentTouchPoint.x += offset.x;
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_currentTouchPoint.y += offset.y;
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[_nodeStack removeLastObject];
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NSDictionary* currentDict = _treeStack.lastObject;
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[_treeStack removeLastObject];
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[_treeStack.lastObject setObject:currentDict forKey:currentId];
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}
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- (void)finish {
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_onFinish(_nodeStack.lastObject);
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}
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- (void)retrieveSelectTree:(SKProcessFinishDelegate)callback {
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callback(_treeStack.lastObject);
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[_treeStack removeAllObjects];
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}
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- (BOOL)containedIn:(CGRect)bounds {
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return CGRectContainsPoint(bounds, _currentTouchPoint);
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}
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@end
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#endif
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