Initial attempt to get display traits working with ASEnvironment.
To get proper ASDisplayTraits support, you must use an ASViewController. The ASViewController implements UITraitCollection-related methods (`traitCollectionDidChange:`, `willTransitionToTraitCollection:withTransitionCoordinator:`, viewWillTransitionToSize:withTransitionCoordinator`) to update the internal ASDisplayTraits and propagate them to subnodes.
ASTableNode and ASCollectionNode don't actually have their cells as subnodes, so a little bit of trickery is involved (on `setEnvironment:` the table/collection node gets its data controllers completedNodes and propagates the new traits. see `ASDisplayTraitsCollectionTableSetEnvironmentState`). The data controller also passes the current display traits when creating new cells.
ASViewController also supports the ability to return a custom set of display traits. So if you have a modal dialog that should always be told it is in a compact size class, you can set the override block before displaying the VC.
A new example, called Display Traits, has been added. It shows how display traits can be used in a ASViewController with a normal ASDisplayNode as its root, as well as in ASViewControllers hosting table nodes and collection nodes. There is also an example of overriding the default display traits of a VC.
Please provide feedback!
We move from block based enumeration for the array to fast enumeration as from a benchmark perspective this is faster. For the dictionary we stay with block based enumeration as looking up the value for the key in e.g. fast enumeration would be slower as using the block based API where we get the key and value for passed in
Summary:
Use NSData as key
Add chunking of files
Add support for Animated Images
This adds support for GIF playback in ASDK. It's not currently ready
for merging to public ASDK – for one the GIF decompression may make
more sense in PINRemoteImage.
Removed duration as it wasn't used
Make cover image lazily loaded
Differential Revision: https://phabricator.pinadmin.com/D82033
- Calculate accessibilityFrame for accessibleElements already in accessibleElements method
- Remove asyncdisplaykit_node associated object as it's not needed anymore
- Add class method to create a UIAccessibilityElement from a ASDisplayNode
- Add function to iterate through a ASDisplayNode tree in bfs fashion
- Add assert for _accessibleElements in accessibilityElementAtIndex:
- Remove defaults for ASEnvironmentLayoutOptionsState and ASEnvironmentHierarchyState
- Add locking for ASEnvironmentLayoutExtensibilityForwarding
- Other smaller improvements
- Refactor naming of ASEnvironmentCollection to ASEnvironmentState
- Remove struct pointers
- Move ASEnvironmentStatePropagation to a enum class
- Move merge functions to pure functions
- Move ASLayoutOptionsForwarding and ASLayoutableExtensibility into ASLayoutSpec and ASDisplayNode
- Remove ASLayoutableSetValuesForLayoutable and move into explicit classes (ASDisplayNode, ASTextNode)
