Swiftgram/Source/Details/_ASDisplayView.h
Michael Schneider 236cdd799c
Fix UIResponder handling with view backing ASDisplayNode (#789)
* Add failing tests

* Fix responder chain handling in Texture

* Add mores tests that horrible fail

* Add Changelog.md entry

* Some fixes

* Update logic

* Add tests that prevents infinite loops if a custom view is overwriting UIResponder methods

* Add macro to forward methods in ASDisplayNode

* Add macro for forwarding responder methods in _ASDisplayView

* Remove junk

* Address first comments

* Update _ASDisplayView to cache responder forwarding methods

* Use XCTAssertEqual
2018-02-23 09:10:09 -08:00

53 lines
2.1 KiB
Objective-C

//
// _ASDisplayView.h
// Texture
//
// Copyright (c) 2014-present, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the /ASDK-Licenses directory of this source tree. An additional
// grant of patent rights can be found in the PATENTS file in the same directory.
//
// Modifications to this file made after 4/13/2017 are: Copyright (c) 2017-present,
// Pinterest, Inc. Licensed 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
//
#import <UIKit/UIKit.h>
NS_ASSUME_NONNULL_BEGIN
// This class is only for use by ASDisplayNode and should never be subclassed or used directly.
// Note that the "node" property is added to UIView directly via a category in ASDisplayNode.
@class ASDisplayNode;
@interface _ASDisplayView : UIView
/**
@discussion This property overrides the UIView category method which implements this via associated objects.
This should result in much better performance for _ASDisplayView.
*/
@property (nullable, nonatomic, weak) ASDisplayNode *asyncdisplaykit_node;
// These methods expose a way for ASDisplayNode touch events to let the view call super touch events
// Some UIKit mechanisms, like UITableView and UICollectionView selection handling, require this to work
- (void)__forwardTouchesBegan:(NSSet *)touches withEvent:(UIEvent *)event;
- (void)__forwardTouchesMoved:(NSSet *)touches withEvent:(UIEvent *)event;
- (void)__forwardTouchesEnded:(NSSet *)touches withEvent:(UIEvent *)event;
- (void)__forwardTouchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event;
// These methods expose a way for ASDisplayNode responder methods to let the view call super responder methods
// They are called from ASDisplayNode to pass through UIResponder methods to the view
- (BOOL)__canBecomeFirstResponder;
- (BOOL)__becomeFirstResponder;
- (BOOL)__canResignFirstResponder;
- (BOOL)__resignFirstResponder;
- (BOOL)__isFirstResponder;
@end
NS_ASSUME_NONNULL_END