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Joshua Gross
309de462bd
Summary: iOS and other platforms have direct access to C++ StateT structs, whereas Java only has access to a Java map equivalent - state updates from Java can't update complex types, or must incur significant cost to reconstruct large objects from their folly::dynamic representation (not to mention the complexity of implementing the Java-to-C++ struct converters). Thus it's hard for Java to update StateT's with complex types on the C++ side. This diff makes a minor change to Android's updateState which uses both the folly::dynamic data from Java as well as the previous State, so each StateT can have fields that are read-only from the Java perspective. Motivation: For AndroidTextInput we need to set params from Java, without being able to send all of the State params from Java. In this diff, we introduce a new State constructor that takes the previous State value and a folly::dynamic. It is up to each State implementation how the additional parameter will be used. We migrate every existing component except for AndroidTextInput in this diff. Changelog: [Internal] Reviewed By: mdvacca Differential Revision: D18672365 fbshipit-source-id: 4469e0a3c7658c204089c6fed39394979883f124