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authorRobert Jaros <rjaros@finn.pl>2019-03-24 03:23:38 +0100
committerRobert Jaros <rjaros@finn.pl>2019-03-24 03:23:38 +0100
commit822ce8ad4355c3673c0c2debc3df7abb64da5386 (patch)
tree4304e15f48b4dd20652ee9b7d635370b323107dc /kvision-modules/kvision-redux/src/main/kotlin/pl
parent168c96733d8fa9ccb78f0b84376b053e8d7ee03e (diff)
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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.kt49
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)
}
}