GT2/GT2-iOS/node_modules/react-native-gesture-handler/ios/Handlers/RNLongPressHandler.m

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2018-02-12 17:26:06 +00:00
//
// RNLongPressHandler.m
// RNGestureHandler
//
// Created by Krzysztof Magiera on 12/10/2017.
// Copyright © 2017 Software Mansion. All rights reserved.
//
#import "RNLongPressHandler.h"
#import <UIKit/UIGestureRecognizerSubclass.h>
#import <React/RCTConvert.h>
@interface RNBetterLongPressGestureRecognizer : UILongPressGestureRecognizer
- (id)initWithGestureHandler:(RNGestureHandler*)gestureHandler;
@end
@implementation RNBetterLongPressGestureRecognizer {
__weak RNGestureHandler *_gestureHandler;
}
- (id)initWithGestureHandler:(RNGestureHandler*)gestureHandler
{
if ((self = [super initWithTarget:gestureHandler action:@selector(handleGesture:)])) {
_gestureHandler = gestureHandler;
}
return self;
}
- (void)touchesMoved:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event
{
[super touchesMoved:touches withEvent:event];
if (_gestureHandler.shouldCancelWhenOutside) {
CGPoint pt = [self locationInView:self.view];
if (!CGRectContainsPoint(self.view.bounds, pt)) {
self.enabled = NO;
self.enabled = YES;
}
}
}
@end
@implementation RNLongPressGestureHandler
- (instancetype)initWithTag:(NSNumber *)tag
{
if ((self = [super initWithTag:tag])) {
_recognizer = [[RNBetterLongPressGestureRecognizer alloc] initWithGestureHandler:self];
}
return self;
}
- (void)configure:(NSDictionary *)config
{
[super configure:config];
UILongPressGestureRecognizer *recognizer = (UILongPressGestureRecognizer *)_recognizer;
id prop = config[@"minDurationMs"];
if (prop != nil) {
recognizer.minimumPressDuration = [RCTConvert CGFloat:prop] / 1000.0;
}
prop = config[@"maxDist"];
if (prop != nil) {
recognizer.allowableMovement = [RCTConvert CGFloat:prop];
}
}
- (RNGestureHandlerState)state
{
// For long press recognizer we treat "Began" state as "active"
// as it changes its state to "Began" as soon as the the minimum
// hold duration timeout is reached, whereas state "Changed" is
// only set after "Began" phase if there is some movement.
if (_recognizer.state == UIGestureRecognizerStateBegan) {
return RNGestureHandlerStateActive;
}
return [super state];
}
@end