IGListKit/Source/Internal/IGListDisplayHandler.h
Ryan Nystrom 3102852ce2 Remove IGListSectionType
Summary:
Removing the `IGListSectionType` protocol and adding default implementations into `IGListSectionController`.

- `numberOfItems` returns 1
- `cellForItemAtIndex:` asserts (have to return a cell)
- `didUpdateToObject:` no-ops
- `didSelectItemAtIndex:` no-ops

Fixes #168

Reviewed By: jessesquires

Differential Revision: D4909585

fbshipit-source-id: 8816702504e3fc0683868914ff4dd20e4af7c166
2017-04-19 08:26:30 -07:00

84 lines
3.2 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>
#import <IGListKit/IGListMacros.h>
@class IGListAdapter;
@class IGListSectionController;
NS_ASSUME_NONNULL_BEGIN
IGLK_SUBCLASSING_RESTRICTED
@interface IGListDisplayHandler : NSObject
/**
Tells the handler that a cell will be displayed in the IGListAdapter.
@param cell A cell that will be displayed.
@param listAdapter The adapter the cell will display in.
@param sectionController The section controller that manages the cell.
@param object The object that powers the section controller.
@param indexPath The index path of the cell in the UICollectionView.
*/
- (void)willDisplayCell:(UICollectionViewCell *)cell
forListAdapter:(IGListAdapter *)listAdapter
sectionController:(IGListSectionController *)sectionController
object:(id)object
indexPath:(NSIndexPath *)indexPath;
/**
Tells the handler that a cell did end display in the IGListAdapter.
@param cell A cell that will be displayed.
@param listAdapter The adapter the cell will display in.
@param sectionController The section controller that manages the cell.
@param indexPath The index path of the cell in the UICollectionView.
*/
- (void)didEndDisplayingCell:(UICollectionViewCell *)cell
forListAdapter:(IGListAdapter *)listAdapter
sectionController:(IGListSectionController *)sectionController
indexPath:(NSIndexPath *)indexPath;
/**
Tells the handler that a supplementary view will be displayed in the IGListAdapter.
@param view A supplementary view that will be displayed.
@param listAdapter The adapter the supplementary view will display in.
@param sectionController The section controller that manages the supplementary view.
@param object The object that powers the section controller.
@param indexPath The index path of the supplementary view in the UICollectionView.
*/
- (void)willDisplaySupplementaryView:(UICollectionReusableView *)view
forListAdapter:(IGListAdapter *)listAdapter
sectionController:(IGListSectionController *)sectionController
object:(id)object
indexPath:(NSIndexPath *)indexPath;
/**
Tells the handler that a supplementary view did end display in the IGListAdapter.
@param view A supplementary view that will be displayed.
@param listAdapter The adapter the supplementary view will display in.
@param sectionController The section controller that manages the supplementary view.
@param indexPath The index path of the supplementary view in the UICollectionView.
*/
- (void)didEndDisplayingSupplementaryView:(UICollectionReusableView *)view
forListAdapter:(IGListAdapter *)listAdapter
sectionController:(IGListSectionController *)sectionController
indexPath:(NSIndexPath *)indexPath;
@end
NS_ASSUME_NONNULL_END