mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-06 15:08:50 +00:00
000bc36919
Summary: Relicensing IGListKit under MIT Reviewed By: calimarkus Differential Revision: D7764125 fbshipit-source-id: 6c773195ef3184202725fe7f08de754f979cb83f
103 lines
3.3 KiB
Objective-C
103 lines
3.3 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 "IGListSectionControllerInternal.h"
|
|
|
|
#import <IGListKit/IGListMacros.h>
|
|
#import <IGListKit/IGListAssert.h>
|
|
|
|
static NSString * const kIGListSectionControllerThreadKey = @"kIGListSectionControllerThreadKey";
|
|
|
|
@interface IGListSectionControllerThreadContext : NSObject
|
|
@property (nonatomic, weak) UIViewController *viewController;
|
|
@property (nonatomic, weak) id<IGListCollectionContext> collectionContext;
|
|
@end
|
|
@implementation IGListSectionControllerThreadContext
|
|
@end
|
|
|
|
static NSMutableArray<IGListSectionControllerThreadContext *> *threadContextStack(void) {
|
|
IGAssertMainThread();
|
|
NSMutableDictionary *threadDictionary = [[NSThread currentThread] threadDictionary];
|
|
NSMutableArray *stack = threadDictionary[kIGListSectionControllerThreadKey];
|
|
if (stack == nil) {
|
|
stack = [NSMutableArray new];
|
|
threadDictionary[kIGListSectionControllerThreadKey] = stack;
|
|
}
|
|
return stack;
|
|
}
|
|
|
|
void IGListSectionControllerPushThread(UIViewController *viewController, id<IGListCollectionContext> collectionContext) {
|
|
IGListSectionControllerThreadContext *context = [IGListSectionControllerThreadContext new];
|
|
context.viewController = viewController;
|
|
context.collectionContext = collectionContext;
|
|
|
|
[threadContextStack() addObject:context];
|
|
}
|
|
|
|
void IGListSectionControllerPopThread(void) {
|
|
NSMutableArray *stack = threadContextStack();
|
|
IGAssert(stack.count > 0, @"IGListSectionController thread stack is empty");
|
|
[stack removeLastObject];
|
|
}
|
|
|
|
@implementation IGListSectionController
|
|
|
|
- (instancetype)init {
|
|
if (self = [super init]) {
|
|
IGListSectionControllerThreadContext *context = [threadContextStack() lastObject];
|
|
_viewController = context.viewController;
|
|
_collectionContext = context.collectionContext;
|
|
|
|
if (_collectionContext == nil) {
|
|
IGLKLog(@"Warning: Creating %@ outside of -[IGListAdapterDataSource listAdapter:sectionControllerForObject:]. Collection context and view controller will be set later.",
|
|
NSStringFromClass([self class]));
|
|
}
|
|
|
|
_minimumInteritemSpacing = 0.0;
|
|
_minimumLineSpacing = 0.0;
|
|
_inset = UIEdgeInsetsZero;
|
|
_section = NSNotFound;
|
|
}
|
|
return self;
|
|
}
|
|
|
|
- (NSInteger)numberOfItems {
|
|
return 1;
|
|
}
|
|
|
|
- (CGSize)sizeForItemAtIndex:(NSInteger)index {
|
|
return CGSizeZero;
|
|
}
|
|
|
|
- (__kindof UICollectionViewCell *)cellForItemAtIndex:(NSInteger)index {
|
|
IGFailAssert(@"Section controller %@ must override %s:", self, __PRETTY_FUNCTION__);
|
|
return nil;
|
|
}
|
|
|
|
- (void)didUpdateToObject:(id)object {}
|
|
|
|
- (void)didSelectItemAtIndex:(NSInteger)index {}
|
|
|
|
- (void)didDeselectItemAtIndex:(NSInteger)index {}
|
|
|
|
- (void)didHighlightItemAtIndex:(NSInteger)index {}
|
|
|
|
- (void)didUnhighlightItemAtIndex:(NSInteger)index {}
|
|
|
|
- (BOOL)canMoveItemAtIndex:(NSInteger)index {
|
|
return NO;
|
|
}
|
|
|
|
- (BOOL)canMoveItemAtIndex:(NSInteger)sourceItemIndex toIndex:(NSInteger)destinationItemIndex {
|
|
return [self canMoveItemAtIndex:sourceItemIndex];
|
|
}
|
|
|
|
- (void)moveObjectFromIndex:(NSInteger)sourceIndex toIndex:(NSInteger)destinationIndex {
|
|
IGFailAssert(@"Section controller %@ must override %s if interactive reordering is enabled.", self, __PRETTY_FUNCTION__);
|
|
}
|
|
|
|
@end
|