IGListKit/Source/IGListStackedSectionController.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

52 lines
1.7 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 <IGListKit/IGListSectionController.h>
#import <IGListKit/IGListMacros.h>
NS_ASSUME_NONNULL_BEGIN
/**
An instance of `IGListStackedSectionController` is a clustered section controller, composed of many child section
controllers. It constructs and routes item-level indexes to the appropriate child section controller with a local
index. This lets you build section controllers made up of individual units that can be shared and reused with other
section controllers.
For example, you can create a "Comments" section controller that displays lists of text that is used alongside photo,
video, or slideshow section controllers. You then have four small and manageable section controllers instead of one
huge class.
*/
IGLK_SUBCLASSING_RESTRICTED
@interface IGListStackedSectionController : IGListSectionController
/**
Creates a new stacked section controller.
@param sectionControllers An array of section controllers that make up the stack.
@note The order of the section controllers dictates the order in which they appear.
@warning The first section controller that is the supplementary source decides which supplementary views get displayed.
*/
- (instancetype)initWithSectionControllers:(NSArray <IGListSectionController *> *)sectionControllers NS_DESIGNATED_INITIALIZER;
/**
:nodoc:
*/
- (instancetype)init NS_UNAVAILABLE;
/**
:nodoc:
*/
+ (instancetype)new NS_UNAVAILABLE;
@end
NS_ASSUME_NONNULL_END