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author | Robert Jaros <rjaros@finn.pl> | 2019-03-24 03:23:38 +0100 |
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committer | Robert Jaros <rjaros@finn.pl> | 2019-03-24 03:23:38 +0100 |
commit | 822ce8ad4355c3673c0c2debc3df7abb64da5386 (patch) | |
tree | 4304e15f48b4dd20652ee9b7d635370b323107dc /kvision-modules/kvision-redux/src/main/kotlin/pl | |
parent | 168c96733d8fa9ccb78f0b84376b053e8d7ee03e (diff) | |
download | kvision-822ce8ad4355c3673c0c2debc3df7abb64da5386.tar.gz kvision-822ce8ad4355c3673c0c2debc3df7abb64da5386.tar.bz2 kvision-822ce8ad4355c3673c0c2debc3df7abb64da5386.zip |
Experimental updatable redux content.
Diffstat (limited to 'kvision-modules/kvision-redux/src/main/kotlin/pl')
-rw-r--r-- | kvision-modules/kvision-redux/src/main/kotlin/pl/treksoft/kvision/redux/StateBinding.kt | 49 |
1 files changed, 41 insertions, 8 deletions
diff --git a/kvision-modules/kvision-redux/src/main/kotlin/pl/treksoft/kvision/redux/StateBinding.kt b/kvision-modules/kvision-redux/src/main/kotlin/pl/treksoft/kvision/redux/StateBinding.kt index 55fcdb34..383e734e 100644 --- a/kvision-modules/kvision-redux/src/main/kotlin/pl/treksoft/kvision/redux/StateBinding.kt +++ b/kvision-modules/kvision-redux/src/main/kotlin/pl/treksoft/kvision/redux/StateBinding.kt @@ -36,30 +36,42 @@ import redux.RAction * @param container a container * @param factory a function which re-creates the view based on the given state */ -class StateBinding<S : Any, A : RAction, CONT : Container>( +class StateBinding<S : Any, A : RAction, CONT : Container, CONTENT>( store: ReduxStore<S, A>, private val container: CONT, - private val factory: (CONT.(S) -> Unit) + private val factory: (CONT.(S) -> CONTENT) ) : Widget(setOf()) { init { - container.add(this) - container.factory(store.getState()) + update(store.getState()) store.subscribe { update(it) } } + private var updateState: ((S, CONTENT) -> Unit)? = null + private var content: CONTENT? = null + /** * Updates view from the current state. */ @Suppress("ComplexMethod") fun update(state: S) { singleRender { - container.removeAll() - container.add(this) - container.factory(state) + if (updateState == null || content == null) { + container.removeAll() + container.add(this) + content = container.factory(state) + } else { + content?.let { + updateState?.invoke(state, it) + } + } } } + private fun setUpdateState(updateState: (S, CONTENT) -> Unit) { + this.updateState = updateState + } + companion object { /** * DSL builder extension function. @@ -69,8 +81,29 @@ class StateBinding<S : Any, A : RAction, CONT : Container>( fun <S : Any, A : RAction, CONT : Container> CONT.stateBinding( store: ReduxStore<S, A>, factory: (CONT.(S) -> Unit) - ): StateBinding<S, A, CONT> { + ): StateBinding<S, A, CONT, Unit> { return StateBinding(store, this, factory) } + + /** + * DSL builder extension function for updateable redux content. + * + * It takes the same parameters as the constructor of the built component. + */ + fun <S : Any, A : RAction, CONT : Container, CONTENT> CONT.stateUpdate( + store: ReduxStore<S, A>, + factory: (CONT.(S) -> CONTENT) + ): Updateable<S, CONTENT> { + return Updateable(StateBinding(store, this, factory)::setUpdateState) + } + } +} + +/** + * A helper class for updateable redux content. + */ +class Updateable<S : Any, CONTENT>(private val setUpdateState: ((S, CONTENT) -> Unit) -> Unit) { + infix fun updateWith(updateState: (S, CONTENT) -> Unit) { + setUpdateState(updateState) } } |