IGListKit/Source/IGListWorkingRangeDelegate.h
Robert Payne 40625f8ff9 Swift name annotations
Summary:
This adds `NS_SWIFT_NAME` annotations to all public API's to provide cleaner integration into Swift:

- Removes the need to prefix classes in Swift code, instead rely on Swift module name spacing
- Adds more argument labels to C function API's like `IGListDiff([], [], .equality)` => `ListDiff(oldArray: [], newArray: [], option: .equality)`

While this is a large API change it should be as easy as:

- Find and replace `(IGList)([^K])` to `List$2` in Xcode with a scope set to Swift
- Build and follow compiler's auto fix corrections for C API's or any missed renames

I have not updated the documentation to reflect this yet, I am totally willing to do so but before I sink that amount of time into it I wanted to see if the Instagram team is even open to this change!

- [x] All tests pass. Demo project builds and runs.
- [x] I added tests, an experiment, or detailed why my change isn't tested.
- [x] I added an entry to the `CHANGELOG.md` for any breaking changes, enhancements, or bug fixes.
- [x] I have reviewed the [contributing guide](https://github.com/Instagram/IGListKit/blob/master/.github/CONTRIBUTING.md)
- [ ] I have updated the documentation
Closes https://github.com/Instagram/IGListKit/pull/593

Reviewed By: jessesquires

Differential Revision: D5028039

Pulled By: rnystrom

fbshipit-source-id: b473d874a1f9574e56b2ebaabd5b73d1b57d4bab
2017-05-09 14:31:28 -07:00

46 lines
1.4 KiB
Objective-C

/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#import <UIKit/UIKit.h>
@class IGListAdapter;
@class IGListSectionController;
NS_ASSUME_NONNULL_BEGIN
/**
Implement this protocol to receive working range events for a list.
The working range is a range *near* the viewport in which you can begin preparing content for display. For example,
you could begin decoding images, or warming text caches.
*/
NS_SWIFT_NAME(ListWorkingRangeDelegate)
@protocol IGListWorkingRangeDelegate <NSObject>
/**
Notifies the delegate that an section controller will enter the working range.
@param listAdapter The adapter controlling the list.
@param sectionController The section controller entering the range.
*/
- (void)listAdapter:(IGListAdapter *)listAdapter sectionControllerWillEnterWorkingRange:(IGListSectionController *)sectionController;
/**
Notifies the delegate that an section controller exited the working range.
@param listAdapter The adapter controlling the list.
@param sectionController The section controller that exited the range.
*/
- (void)listAdapter:(IGListAdapter *)listAdapter sectionControllerDidExitWorkingRange:(IGListSectionController *)sectionController;
@end
NS_ASSUME_NONNULL_END