AsyncDisplayKit/AsyncDisplayKit/ASDisplayNodeExtras.h at master · willardLin/AsyncDisplayKit · GitHub

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* 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 <QuartzCore/QuartzCore.h>

#import <UIKit/UIKit.h>

#import <AsyncDisplayKit/ASBaseDefines.h>

#import <AsyncDisplayKit/ASDisplayNode.h>

ASDISPLAYNODE_EXTERN_C_BEGIN

/**

Given a layer, returns the associated display node, if any.

extern ASDisplayNode *ASLayerToDisplayNode(CALayer *layer);

/**

Given a view, returns the associated display node, if any.

extern ASDisplayNode *ASViewToDisplayNode(UIView *view);

/**

Given a display node, traverses up the layer tree hierarchy, returning the first display node that passes block.

extern id ASDisplayNodeFind(ASDisplayNode *node, BOOL (^block)(ASDisplayNode *node));

/**

Given a display node, traverses up the layer tree hierarchy, returning the first display node of kind class.

extern id ASDisplayNodeFindClass(ASDisplayNode *start, Class c);

/**

Given a display node, collects all descendents. This is a specialization of ASCollectContainer() that walks the Core Animation layer tree as opposed to the display node tree, thus supporting non-continues display node hierarchies.

extern NSArray *ASCollectDisplayNodes(ASDisplayNode *node);

/**

Given a display node, traverses down the node hierarchy, returning all the display nodes that pass the block.

extern NSArray *ASDisplayNodeFindAllSubnodes(ASDisplayNode *start, BOOL (^block)(ASDisplayNode *node));

/**

Given a display node, traverses down the node hierarchy, returning all the display nodes of kind class.

extern NSArray *ASDisplayNodeFindAllSubnodesOfClass(ASDisplayNode *start, Class c);

/**

Given a display node, traverses down the node hierarchy, returning the depth-first display node that pass the block.

extern id ASDisplayNodeFindFirstSubnode(ASDisplayNode *start, BOOL (^block)(ASDisplayNode *node));

/**

Given a display node, traverses down the node hierarchy, returning the depth-first display node of kind class.

extern id ASDisplayNodeFindFirstSubnodeOfClass(ASDisplayNode *start, Class c);

/**

Disable willAppear / didAppear / didDisappear notifications for a sub-hierarchy, then re-enable when done. Nested calls are supported.

extern void ASDisplayNodeDisableHierarchyNotifications(ASDisplayNode *node);

extern void ASDisplayNodeEnableHierarchyNotifications(ASDisplayNode *node);

ASDISPLAYNODE_EXTERN_C_END

AsyncDisplayKit/AsyncDisplayKit/ASDisplayNodeExtras.h at master · willardLin/AsyncDisplayKit · GitHub

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