Add 'submodules/AsyncDisplayKit/' from commit '02bedc12816e251ad71777f9d2578329b6d2bef6'

git-subtree-dir: submodules/AsyncDisplayKit
git-subtree-mainline: d06f423e0e
git-subtree-split: 02bedc1281

submodules/AsyncDisplayKit/Source/Layout/ASStackLayoutDefines.h

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+//
+//  ASStackLayoutDefines.h
+//  Texture
+//
+//  Copyright (c) Facebook, Inc. and its affiliates.  All rights reserved.
+//  Changes after 4/13/2017 are: Copyright (c) Pinterest, Inc.  All rights reserved.
+//  Licensed under Apache 2.0: http://www.apache.org/licenses/LICENSE-2.0
+//
+
+#import <AsyncDisplayKit/ASBaseDefines.h>
+
+/** The direction children are stacked in */
+typedef NS_ENUM(NSUInteger, ASStackLayoutDirection) {
+  /** Children are stacked vertically */
+  ASStackLayoutDirectionVertical,
+  /** Children are stacked horizontally */
+  ASStackLayoutDirectionHorizontal,
+};
+
+/** If no children are flexible, how should this spec justify its children in the available space? */
+typedef NS_ENUM(NSUInteger, ASStackLayoutJustifyContent) {
+  /**
+   On overflow, children overflow out of this spec's bounds on the right/bottom side.
+   On underflow, children are left/top-aligned within this spec's bounds.
+   */
+  ASStackLayoutJustifyContentStart,
+  /**
+   On overflow, children are centered and overflow on both sides.
+   On underflow, children are centered within this spec's bounds in the stacking direction.
+   */
+  ASStackLayoutJustifyContentCenter,
+  /**
+   On overflow, children overflow out of this spec's bounds on the left/top side.
+   On underflow, children are right/bottom-aligned within this spec's bounds.
+   */
+  ASStackLayoutJustifyContentEnd,
+  /**
+   On overflow or if the stack has only 1 child, this value is identical to ASStackLayoutJustifyContentStart.
+   Otherwise, the starting edge of the first child is at the starting edge of the stack, 
+   the ending edge of the last child is at the ending edge of the stack, and the remaining children
+   are distributed so that the spacing between any two adjacent ones is the same.
+   If there is a remaining space after spacing division, it is combined with the last spacing (i.e the one between the last 2 children).
+   */
+  ASStackLayoutJustifyContentSpaceBetween,
+  /**
+   On overflow or if the stack has only 1 child, this value is identical to ASStackLayoutJustifyContentCenter.
+   Otherwise, children are distributed such that the spacing between any two adjacent ones is the same,
+   and the spacing between the first/last child and the stack edges is half the size of the spacing between children.
+   If there is a remaining space after spacing division, it is combined with the last spacing (i.e the one between the last child and the stack ending edge).
+   */
+  ASStackLayoutJustifyContentSpaceAround
+};
+
+/** Orientation of children along cross axis */
+typedef NS_ENUM(NSUInteger, ASStackLayoutAlignItems) {
+  /** Align children to start of cross axis */
+  ASStackLayoutAlignItemsStart,
+  /** Align children with end of cross axis */
+  ASStackLayoutAlignItemsEnd,
+  /** Center children on cross axis */
+  ASStackLayoutAlignItemsCenter,
+  /** Expand children to fill cross axis */
+  ASStackLayoutAlignItemsStretch,
+  /** Children align to their first baseline. Only available for horizontal stack spec */
+  ASStackLayoutAlignItemsBaselineFirst,
+  /** Children align to their last baseline. Only available for horizontal stack spec */
+  ASStackLayoutAlignItemsBaselineLast,
+  ASStackLayoutAlignItemsNotSet
+};
+
+/**
+ Each child may override their parent stack's cross axis alignment.
+ @see ASStackLayoutAlignItems
+ */
+typedef NS_ENUM(NSUInteger, ASStackLayoutAlignSelf) {
+  /** Inherit alignment value from containing stack. */
+  ASStackLayoutAlignSelfAuto,
+  /** Align to start of cross axis */
+  ASStackLayoutAlignSelfStart,
+  /** Align with end of cross axis */
+  ASStackLayoutAlignSelfEnd,
+  /** Center on cross axis */
+  ASStackLayoutAlignSelfCenter,
+  /** Expand to fill cross axis */
+  ASStackLayoutAlignSelfStretch,
+};
+
+/** Whether children are stacked into a single or multiple lines. */
+typedef NS_ENUM(NSUInteger, ASStackLayoutFlexWrap) {
+  ASStackLayoutFlexWrapNoWrap,
+  ASStackLayoutFlexWrapWrap,
+};
+
+/** Orientation of lines along cross axis if there are multiple lines. */
+typedef NS_ENUM(NSUInteger, ASStackLayoutAlignContent) {
+  ASStackLayoutAlignContentStart,
+  ASStackLayoutAlignContentCenter,
+  ASStackLayoutAlignContentEnd,
+  ASStackLayoutAlignContentSpaceBetween,
+  ASStackLayoutAlignContentSpaceAround,
+  ASStackLayoutAlignContentStretch,
+};
+
+/** Orientation of children along horizontal axis */
+typedef NS_ENUM(NSUInteger, ASHorizontalAlignment) {
+  /** No alignment specified. Default value */
+  ASHorizontalAlignmentNone,
+  /** Left aligned */
+  ASHorizontalAlignmentLeft,
+  /** Center aligned */
+  ASHorizontalAlignmentMiddle,
+  /** Right aligned */
+  ASHorizontalAlignmentRight,
+
+  // After 2.0 has landed, we'll add ASDISPLAYNODE_DEPRECATED here - for now, avoid triggering errors for projects with -Werror
+  /** @deprecated Use ASHorizontalAlignmentLeft instead */
+  ASAlignmentLeft ASDISPLAYNODE_DEPRECATED = ASHorizontalAlignmentLeft,
+  /** @deprecated Use ASHorizontalAlignmentMiddle instead */
+  ASAlignmentMiddle ASDISPLAYNODE_DEPRECATED = ASHorizontalAlignmentMiddle,
+  /** @deprecated Use ASHorizontalAlignmentRight instead */
+  ASAlignmentRight ASDISPLAYNODE_DEPRECATED = ASHorizontalAlignmentRight,
+};
+
+/** Orientation of children along vertical axis */
+typedef NS_ENUM(NSUInteger, ASVerticalAlignment) {
+  /** No alignment specified. Default value */
+  ASVerticalAlignmentNone,
+  /** Top aligned */
+  ASVerticalAlignmentTop,
+  /** Center aligned */
+  ASVerticalAlignmentCenter,
+  /** Bottom aligned */
+  ASVerticalAlignmentBottom,
+
+  // After 2.0 has landed, we'll add ASDISPLAYNODE_DEPRECATED here - for now, avoid triggering errors for projects with -Werror
+  /** @deprecated Use ASVerticalAlignmentTop instead */
+  ASAlignmentTop ASDISPLAYNODE_DEPRECATED = ASVerticalAlignmentTop,
+  /** @deprecated Use ASVerticalAlignmentCenter instead */
+  ASAlignmentCenter ASDISPLAYNODE_DEPRECATED = ASVerticalAlignmentCenter,
+  /** @deprecated Use ASVerticalAlignmentBottom instead */
+  ASAlignmentBottom ASDISPLAYNODE_DEPRECATED = ASVerticalAlignmentBottom,
+};