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git-subtree-dir: submodules/AsyncDisplayKit git-subtree-mainline: d06f423e0ed3df1fed9bd10d79ee312a9179b632 git-subtree-split: 02bedc12816e251ad71777f9d2578329b6d2bef6
55 lines
1.4 KiB
Objective-C
55 lines
1.4 KiB
Objective-C
//
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// TailLoadingNode.m
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// Texture
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//
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// Copyright (c) Pinterest, Inc. All rights reserved.
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// Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
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//
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#import "TailLoadingNode.h"
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#import "Availability.h"
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@interface TailLoadingNode ()
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@property (nonatomic, strong) ASDisplayNode *activityIndicatorNode;
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@end
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@implementation TailLoadingNode
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- (instancetype)init
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{
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if (self = [super init]) {
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self.automaticallyManagesSubnodes = YES;
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_activityIndicatorNode = [[ASDisplayNode alloc] initWithViewBlock:^{
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UIActivityIndicatorView *v = [[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:UIActivityIndicatorViewStyleGray];
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[v startAnimating];
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return v;
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}];
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self.style.height = ASDimensionMake(100);
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[self setupYogaLayoutIfNeeded];
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}
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return self;
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}
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#if !YOGA_LAYOUT
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- (ASLayoutSpec *)layoutSpecThatFits:(ASSizeRange)constrainedSize
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{
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return [ASCenterLayoutSpec centerLayoutSpecWithCenteringOptions:ASCenterLayoutSpecCenteringXY sizingOptions:ASCenterLayoutSpecSizingOptionMinimumXY child:self.activityIndicatorNode];
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}
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#endif
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- (void)setupYogaLayoutIfNeeded
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{
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#if YOGA_LAYOUT
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[self.style yogaNodeCreateIfNeeded];
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[self.activityIndicatorNode.style yogaNodeCreateIfNeeded];
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[self addYogaChild:self.activityIndicatorNode];
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self.style.justifyContent = ASStackLayoutJustifyContentCenter;
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self.style.alignItems = ASStackLayoutAlignItemsCenter;
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#endif
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}
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@end
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