Summary:
If there is a single child which is flex grow and flex shrink then instead of measuring and then shrinking we can just set the flex basis to zero as we know the final result will be that the child take up all remaining space.
This is a re-land of D4147298. I have updated the diff to check explicitly for exact measure mode to also handle at_most case correctly.
Reviewed By: gkassabli
Differential Revision: D4153133
fbshipit-source-id: 2333150a83857cc30078cc8d52761cbd00652830
Summary: If there is a single child which is flex grow and flex shrink then instead of measuring and then shrinking we can just set the flex basis to zero as we know the final result will be that the child take up all remaining space.
Reviewed By: gkassabli
Differential Revision: D4147298
fbshipit-source-id: 8416508a31e8d317bf59d956abdbe5760b55bb6d
Summary: If there is a single child which is flex grow and flex shrink then instead of measuring and then shrinking we can just set the flex basis to zero as we know the final result will be that the child take up all remaining space.
Reviewed By: gkassabli
Differential Revision: D4147298
fbshipit-source-id: 51152e57eff8e322a833a6d698c30f8c5e2dcc35
Summary: Scrolling through feed and logging when this optimization is hit leads to... 0 logs. If anything this just adds to confusion. It was initially added due to instinct and not data, which was a mistake. I am happy to add some similar optimization in the future if we have data that it is useful in real world situations, currently it just leads to bugs and confusion though.
Reviewed By: astreet
Differential Revision: D4146785
fbshipit-source-id: e20d780fbd5759b8f38b809e8cadf29cedee82a8
Summary:
@public
In the JNI portion of CSSLayout, there's a subtle bug where we were caching the jmethodid of the 'measure' of the first object that had measure called on it. However, if that class had overriden measure, then the jmethodid would be specific to that subclass's implementation and would not work for other classes. Conversely, if a regular CSSNode had been called first, then the super method would be called on the subclass instead of the proper overriden method.
Since there's not really a reason to overriden measure anyway (since you can just provide a different measure function), it's safest to just mark it final and explicitly cache the appropriate methodid
Reviewed By: emilsjolander
Differential Revision: D4132428
fbshipit-source-id: 6fb51597d80f1c03681e6611153b52b73b392245
Summary: Set layout outputs on CSSNode from C after layout calculation finishes instead of relying on calling jni gettings from java code. This should be much more efficient as it avoids a lot of jni overhead and also allows for calling getLayoutWidth() etc multiple times without incurring a penalty.
Reviewed By: lexs
Differential Revision: D4077968
fbshipit-source-id: bce86ba610cd5ae36cfb45d78b2609c63a14cfa3
Summary: To perform some JNI optimizations for java we need a reference to the node in the measure function. This updates the API to provide the whole node as input instead of just the context.
Reviewed By: javache
Differential Revision: D4081544
fbshipit-source-id: d49679025cea027cf7b8482898de0a01fe0f9d40
Summary: Instead of having different lifetimes for java and c memory we can can tie them together and make them much easier to manage. This also leads to automatically pooling native memory if pooling java memory.
Differential Revision: D4051454
fbshipit-source-id: 8f5d010be520b3d1c981a7f85e5e6d95773ea6c1
Summary: It doesn't make sense to have a getter for the shorthand as it is the computed flexGrow and flexShrink values that you should care about.
Reviewed By: gkassabli
Differential Revision: D4064674
fbshipit-source-id: 69935b85042020b4e8c61a393c1be8f4d42a6674
Summary: JNI version is the default, its name should reflect that
Reviewed By: lucasr
Differential Revision: D3992777
fbshipit-source-id: cdd4cc58f3c15b5db1158f6f794394eb5c44a44d
Summary: Use fbjni for safer and easier jni bridging. This diff includes all of fbjni as it currently does not live as its own open source project. The code was copied from the react-native open source distribution.
Reviewed By: ritzau
Differential Revision: D3764065
fbshipit-source-id: 7ff566af314dcb5279460c322c476ef6f6ed8131
