_WKTextManipulationItem.mm   [plain text]

/*
* Copyright (C) 2019 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
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/

#import "config.h"
#import "_WKTextManipulationItem.h"

#import "_WKTextManipulationToken.h"
#import <wtf/RetainPtr.h>

NSString * const _WKTextManipulationItemErrorDomain = @"WKTextManipulationItemErrorDomain";
NSString * const _WKTextManipulationItemErrorItemKey = @"item";

@implementation _WKTextManipulationItem {
RetainPtr<NSString> _identifier;
RetainPtr<NSArray<_WKTextManipulationToken *>> _tokens;
}

- (instancetype)initWithIdentifier:(NSString *)identifier tokens:(NSArray<_WKTextManipulationToken *> *)tokens
{
if (!(self = [super init]))
return nil;

_identifier = identifier;
_tokens = tokens;
return self;
}

- (NSString *)identifier
{
return _identifier.get();
}

- (NSArray<_WKTextManipulationToken *> *)tokens
{
return _tokens.get();
}

- (BOOL)isEqual:(id)object
{
if (self == object)
return YES;

if (![object isKindOfClass:[self class]])
return NO;

return [self isEqualToTextManipulationItem:object includingContentEquality:YES];
}

- (BOOL)isEqualToTextManipulationItem:(_WKTextManipulationItem *)otherItem includingContentEquality:(BOOL)includingContentEquality
{
if (!otherItem)
return NO;

if (!(self.identifier == otherItem.identifier || [self.identifier isEqualToString:otherItem.identifier]) || self.tokens.count != otherItem.tokens.count)
return NO;

__block BOOL tokensAreEqual = YES;
NSUInteger count = std::min(self.tokens.count, otherItem.tokens.count);
[self.tokens enumerateObjectsAtIndexes:[NSIndexSet indexSetWithIndexesInRange:NSMakeRange(0, count)] options:0 usingBlock:^(_WKTextManipulationToken *token, NSUInteger index, BOOL* stop) {
_WKTextManipulationToken *otherToken = otherItem.tokens[index];
if (![token isEqualToTextManipulationToken:otherToken includingContentEquality:includingContentEquality]) {
tokensAreEqual = NO;
*stop = YES;
}
}];

return tokensAreEqual;
}

- (NSString *)description
{
return [self _descriptionPreservingPrivacy:YES];
}

- (NSString *)debugDescription
{
return [self _descriptionPreservingPrivacy:NO];
}

- (NSString *)_descriptionPreservingPrivacy:(BOOL)preservePrivacy
{
NSMutableArray<NSString *> *recursiveDescriptions = [NSMutableArray array];
[self.tokens enumerateObjectsUsingBlock:^(_WKTextManipulationToken *token, NSUInteger index, BOOL* stop) {
NSString *description = preservePrivacy ? token.description : token.debugDescription;
[recursiveDescriptions addObject:description];
}];
NSString *tokenDescription = [NSString stringWithFormat:@"[\n\t%@\n]", [recursiveDescriptions componentsJoinedByString:@",\n\t"]];
NSString *description = [NSString stringWithFormat:@"<%@: %p; identifier = %@ tokens = %@>", self.class, self, self.identifier, tokenDescription];
return description;
}

@end