artesanias/platforms/ios/CordovaLib/Classes/Private/Plugins/CDVGestureHandler/CDVGestureHandler.m

/*
 Licensed to the Apache Software Foundation (ASF) under one
 or more contributor license agreements.  See the NOTICE file
 distributed with this work for additional information
 regarding copyright ownership.  The ASF licenses this file
 to you under the Apache License, Version 2.0 (the
 "License"); you may not use this file except in compliance
 with the License.  You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing,
 software distributed under the License is distributed on an
 "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 KIND, either express or implied.  See the License for the
 specific language governing permissions and limitations
 under the License.
 */

#import "CDVGestureHandler.h"

@implementation CDVGestureHandler

- (void)pluginInitialize
{
    [self applyLongPressFix];
}

- (void)applyLongPressFix
{
    // You can't suppress 3D Touch and still have regular longpress,
    // so if this is false, let's not consider the 3D Touch setting at all.
    if (![self.commandDelegate.settings objectForKey:@"suppresseslongpressgesture"] ||
        ![[self.commandDelegate.settings objectForKey:@"suppresseslongpressgesture"] boolValue]) {
        return;
    }

    self.lpgr = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handleLongPressGestures:)];
    self.lpgr.minimumPressDuration = 0.45f;
    self.lpgr.allowableMovement = 200.0f;

    // 0.45 is ok for 'regular longpress', 0.05-0.08 is required for '3D Touch longpress',
    // but since this will also kill onclick handlers (not ontouchend) it's optional.
    if ([self.commandDelegate.settings objectForKey:@"suppresses3dtouchgesture"] &&
        [[self.commandDelegate.settings objectForKey:@"suppresses3dtouchgesture"] boolValue]) {
        self.lpgr.minimumPressDuration = 0.15f;
    }

    NSArray *views = self.webView.subviews;
    if (views.count == 0) {
        NSLog(@"No webview subviews found, not applying the longpress fix.");
        return;
    }
    for (int i=0; i<views.count; i++) {
        UIView *webViewScrollView = views[i];
        if ([webViewScrollView isKindOfClass:[UIScrollView class]]) {
            NSArray *webViewScrollViewSubViews = webViewScrollView.subviews;
            UIView *browser = webViewScrollViewSubViews[0];
            [browser addGestureRecognizer:self.lpgr];
            break;
        }
    }
}

- (void)handleLongPressGestures:(UILongPressGestureRecognizer*)sender
{
    
}

@end