IGListKit/Source/IGListBindingSectionControllerSelectionDelegate.h
Bofei Zhu 6c64c54a32 Remove optional (#1186)
Summary:
Issue fixed: #859

- [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)
Closes https://github.com/Instagram/IGListKit/pull/1186

Differential Revision: D8264918

Pulled By: rnystrom

fbshipit-source-id: 9f32c085f305299efd839bb365a5d32109ff4f17
2018-06-26 07:02:42 -07:00

66 lines
2.2 KiB
Objective-C

/**
* Copyright (c) 2016-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
#import <Foundation/Foundation.h>
@class IGListBindingSectionController;
NS_ASSUME_NONNULL_BEGIN
/**
A protocol that handles cell selection events in an `IGListBindingSectionController`.
*/
NS_SWIFT_NAME(ListBindingSectionControllerSelectionDelegate)
@protocol IGListBindingSectionControllerSelectionDelegate <NSObject>
/**
Tells the delegate that a cell at a given index was selected.
@param sectionController The section controller the selection occurred in.
@param index The index of the selected cell.
@param viewModel The view model that was bound to the cell.
*/
- (void)sectionController:(IGListBindingSectionController *)sectionController
didSelectItemAtIndex:(NSInteger)index
viewModel:(id)viewModel;
/**
Tells the delegate that a cell at a given index was deselected.
@param sectionController The section controller the deselection occurred in.
@param index The index of the deselected cell.
@param viewModel The view model that was bound to the cell.
*/
- (void)sectionController:(IGListBindingSectionController *)sectionController
didDeselectItemAtIndex:(NSInteger)index
viewModel:(id)viewModel;
/**
Tells the delegate that a cell at a given index was highlighted.
@param sectionController The section controller the highlight occurred in.
@param index The index of the highlighted cell.
@param viewModel The view model that was bound to the cell.
*/
- (void)sectionController:(IGListBindingSectionController *)sectionController
didHighlightItemAtIndex:(NSInteger)index
viewModel:(id)viewModel;
/**
Tells the delegate that a cell at a given index was unhighlighted.
@param sectionController The section controller the unhighlight occurred in.
@param index The index of the unhighlighted cell.
@param viewModel The view model that was bound to the cell.
*/
- (void)sectionController:(IGListBindingSectionController *)sectionController
didUnhighlightItemAtIndex:(NSInteger)index
viewModel:(id)viewModel;
@end
NS_ASSUME_NONNULL_END