Summary:
Of course, compare_exchange_strong didn't actually do what I wanted.
Using a mutex is simpler and actually has the semantics we want: atomically get the current value, compare, and bail if the value is the same, or swap and continue.
Changelog: [Internal]
Reviewed By: shergin
Differential Revision: D19754451
fbshipit-source-id: 6b0aef217b235959af683ec5e31b07a0dd7bb040
Summary:
Simple hack to prevent duplicate onLayout events from being emitted to JS.
Because of the addition of State Reconciliation to the Fabric lifecycle (see previous diff), in certain circumstances entire subtrees can be relayed-out many, many times even though they aren't changing. For JS product code that responds to every onLayout and forces a ReactJS tree commit (see: some usages of VirtualizedList) this can cause an async infinite loop of commits and layouts even though the tree and the LayoutMetrics aren't actually changing. Even though nothing is changing, it can still cause serious performance regressions and even some bugs since the internals of various state machines may assume onLayout won't be called many times.
Changelog: [Internal]
Reviewed By: shergin
Differential Revision: D19715280
fbshipit-source-id: d879e24f1c7b1f710ad430b7473aa9293d093dea
Summary: Pretty straight-forward migration to using `JSI` instead of `folly::dynamic` in ViewEventEmitter.
Reviewed By: sahrens
Differential Revision: D13123048
fbshipit-source-id: 3c323912d3e65b684f99df6cda99c785876164af
Summary:
All code styles are terribly ugly. We have the only choise - choise something and embrace it.
This particular code style was borrowed from a neibour Fabric-friendly project because it follows established Facebook guides and respects client-side traditions.
Reviewed By: mdvacca
Differential Revision: D10218598
fbshipit-source-id: 8c4cf6713c07768566dadef479191661c79988f0
Summary: This change drops the year from the copyright headers and the LICENSE file.
Reviewed By: yungsters
Differential Revision: D9727774
fbshipit-source-id: df4fc1e4390733fe774b1a160dd41b4a3d83302a
Summary: In the future, we may want some components (like Virtual Text) to handle only touch events. Therefore, I've extracted `TouchEventEmitter` from `ViewEventEmitter`.
Reviewed By: shergin
Differential Revision: D9696903
fbshipit-source-id: f6acc90d8ff53b5e6badaa472a5e099fb7cf03ff
Summary:
@public
The existing code does not use that at all but we need that for testing things and we will need this in the future.
Reviewed By: mdvacca
Differential Revision: D8886236
fbshipit-source-id: 5ca33e4f4d4ca13a6be0f55cc04b59d5f9b27fa9