kylefang/react-native
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6 Commits

Author SHA1 Message Date
Seth Kirby
a602891946 Use SparseArray for detached views. 
Summary:
This is minor, but for our use case a SparseArray is going to be faster as long as we have less than 10,000 clipped subviews, and will also use much less memory.

Faster because of the boxing, unboxing and hash caching; less memory as it is two arrays instead of the object overhead of the HashMap.

Reviewed By: ahmedre

Differential Revision: D3704326
 2016-12-19 13:40:32 -08:00
Seth Kirby
8600723402 Add comments to FlatViewGroup, DrawCommandManage, ElementsList and StateBuilder. 
Summary: Documentate all of the things.

Reviewed By: ahmedre

Differential Revision: D3700420
 2016-12-19 13:40:31 -08:00
Seth Kirby
a4c4a88e27 Support vertical and horizontal clipping with draw command managers. 
Summary: Adds support for horizontal clipping, though the FlatViewGroup needs to be made aware still of which it is.

Reviewed By: ahmedre

Differential Revision: D3673501
 2016-12-19 13:40:31 -08:00
Seth Kirby
192c99a4f6 Gather command and node region information off the UI thread. 
Summary: This optimizes node region searches in clipping cases, and does position calculation for drawCommands off of the UI thread.

Reviewed By: ahmedre

Differential Revision: D3665301
 2016-12-19 13:40:31 -08:00
Seth Kirby
e96f6fa585 Add directional clipping command manager. 
Summary: Add directional aware clipping to DrawCommandManager.  Currently not attached to FlatViewGroup logic, with the plan to keep this unattached until we are clipping the way we want to in the final state.

Reviewed By: ahmedre

Differential Revision: D3622253
 2016-12-19 13:40:30 -08:00
Seth Kirby
da8ec6fee6 Refactor FlatViewGroup to use DrawCommandManagers. 
Summary: Rework FlatViewGroup to more easily transition into more complex draw command managers.

Reviewed By: ahmedre

Differential Revision: D3536262
 2016-12-19 13:40:29 -08:00