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f588bceb4d
- Both ASDisplayNode and ASLayoutNode conforms to this protocol. - ASDisplayNode can be embeded directly into layout graph. - Eliminate ASCompositeNode. - Fix ASStaticSizeDisplayNode not recpect min constrained size. - Updated tests.
39 lines
1.5 KiB
Objective-C
39 lines
1.5 KiB
Objective-C
/*
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* Copyright (c) 2014-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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*/
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#import <AsyncDisplayKit/ASLayoutNode.h>
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/**
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A layout node that wraps another node, applying insets around it.
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If the child node has a size specified as a percentage, the percentage is resolved against this node's parent
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size **after** applying insets.
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@example ASOuterLayoutNode contains an ASInsetLayoutNode with an ASInnerLayoutNode. Suppose that:
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- ASOuterLayoutNode is 200pt wide.
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- ASInnerLayoutNode specifies its width as 100%.
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- The ASInsetLayoutNode has insets of 10pt on every side.
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ASInnerLayoutNode will have size 180pt, not 200pt, because it receives a parent size that has been adjusted for insets.
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If you're familiar with CSS: ASInsetLayoutNode's child behaves similarly to "box-sizing: border-box".
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An infinite inset is resolved as an inset equal to all remaining space after applying the other insets and child size.
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@example An ASInsetLayoutNode with an infinite left inset and 10px for all other edges will position it's child 10px from the right edge.
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*/
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@interface ASInsetLayoutNode : ASLayoutNode
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/**
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@param insets The amount of space to inset on each side.
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@param child The wrapped child to inset. If nil, this method returns nil.
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*/
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+ (instancetype)newWithInsets:(UIEdgeInsets)insets child:(id<ASLayoutable>)child;
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@end
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