WKImageExtractionGestureRecognizer.mm   [plain text]

/*
 * Copyright (C) 2020 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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#include "config.h"
#include "WKImageExtractionGestureRecognizer.h"

#if PLATFORM(IOS_FAMILY) && ENABLE(IMAGE_EXTRACTION)

@implementation WKImageExtractionGestureRecognizer {
    __weak UIView <WKImageExtractionGestureRecognizerDelegate> *_imageExtractionDelegate;
}

- (instancetype)initWithImageExtractionGestureDelegate:(UIView <WKImageExtractionGestureRecognizerDelegate> *)delegate
{
    if (!(self = [super init]))
        return nil;

    _imageExtractionDelegate = delegate;
    self.delegate = delegate;
    self.minimumPressDuration = 0.1;
    self.allowableMovement = 0;
    self.name = @"Image extraction";
    return self;
}

- (void)setState:(UIGestureRecognizerState)state
{
    auto previousState = self.state;
    super.state = state;

    auto newState = self.state;
    if (previousState != newState && newState == UIGestureRecognizerStateBegan)
        [_imageExtractionDelegate imageExtractionGestureDidBegin:self];
}

@end

#endif // PLATFORM(IOS_FAMILY) && ENABLE(IMAGE_EXTRACTION)