mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-14 21:08:48 +00:00
4eddd4a191
Summary: This was a little bit of an invasive change with the display handler, but I think that this is the right call. When sending display events for objects, we should account for the supplementary view as part of the section controller. This is especially useful for headers and footers. Note that this wont effect the working range API at all. Fixes #300 Closes https://github.com/Instagram/IGListKit/pull/470 Differential Revision: D4551338 Pulled By: rnystrom fbshipit-source-id: dda6fbf18bcfc2c941d80ee2314a543d1ab83843
84 lines
3.4 KiB
Objective-C
84 lines
3.4 KiB
Objective-C
/**
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* Copyright (c) 2016-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import <UIKit/UIKit.h>
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#import <IGListKit/IGListMacros.h>
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@class IGListAdapter;
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@class IGListSectionController;
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@protocol IGListSectionType;
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NS_ASSUME_NONNULL_BEGIN
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IGLK_SUBCLASSING_RESTRICTED
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@interface IGListDisplayHandler : NSObject
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/**
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Tells the handler that a cell will be displayed in the IGListAdapter.
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@param cell A cell that will be displayed.
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@param listAdapter The adapter the cell will display in.
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@param sectionController The section controller that manages the cell.
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@param object The object that powers the section controller.
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@param indexPath The index path of the cell in the UICollectionView.
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*/
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- (void)willDisplayCell:(UICollectionViewCell *)cell
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forListAdapter:(IGListAdapter *)listAdapter
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sectionController:(IGListSectionController<IGListSectionType> *)sectionController
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object:(id)object
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indexPath:(NSIndexPath *)indexPath;
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/**
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Tells the handler that a cell did end display in the IGListAdapter.
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@param cell A cell that will be displayed.
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@param listAdapter The adapter the cell will display in.
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@param sectionController The section controller that manages the cell.
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@param indexPath The index path of the cell in the UICollectionView.
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*/
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- (void)didEndDisplayingCell:(UICollectionViewCell *)cell
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forListAdapter:(IGListAdapter *)listAdapter
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sectionController:(IGListSectionController<IGListSectionType> *)sectionController
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indexPath:(NSIndexPath *)indexPath;
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/**
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Tells the handler that a supplementary view will be displayed in the IGListAdapter.
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@param view A supplementary view that will be displayed.
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@param listAdapter The adapter the supplementary view will display in.
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@param sectionController The section controller that manages the supplementary view.
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@param object The object that powers the section controller.
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@param indexPath The index path of the supplementary view in the UICollectionView.
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*/
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- (void)willDisplaySupplementaryView:(UICollectionReusableView *)view
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forListAdapter:(IGListAdapter *)listAdapter
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sectionController:(IGListSectionController<IGListSectionType> *)sectionController
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object:(id)object
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indexPath:(NSIndexPath *)indexPath;
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/**
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Tells the handler that a supplementary view did end display in the IGListAdapter.
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@param view A supplementary view that will be displayed.
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@param listAdapter The adapter the supplementary view will display in.
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@param sectionController The section controller that manages the supplementary view.
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@param indexPath The index path of the supplementary view in the UICollectionView.
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*/
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- (void)didEndDisplayingSupplementaryView:(UICollectionReusableView *)view
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forListAdapter:(IGListAdapter *)listAdapter
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sectionController:(IGListSectionController<IGListSectionType> *)sectionController
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indexPath:(NSIndexPath *)indexPath;
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@end
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NS_ASSUME_NONNULL_END
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