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introduce handy way to start Store when lifecycle reached CREATED state
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Dmitriy Berdnikov
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Feb 5, 2024
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105 changes: 105 additions & 0 deletions
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elmslie-android/src/main/kotlin/money/vivid/elmslie/android/renderer/ElmRendererDelegate.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,9 +1,114 @@ | ||
| package money.vivid.elmslie.android.renderer | ||
|
|
||
| import android.os.Bundle | ||
| import androidx.activity.ComponentActivity | ||
| import androidx.annotation.MainThread | ||
| import androidx.core.os.bundleOf | ||
| import androidx.fragment.app.Fragment | ||
| import androidx.lifecycle.LifecycleOwner | ||
| import androidx.lifecycle.SavedStateHandle | ||
| import androidx.lifecycle.ViewModelStoreOwner | ||
| import androidx.lifecycle.lifecycleScope | ||
| import androidx.lifecycle.withCreated | ||
| import androidx.savedstate.SavedStateRegistryOwner | ||
| import kotlinx.coroutines.launch | ||
| import money.vivid.elmslie.android.elmStore | ||
| import money.vivid.elmslie.core.store.Store | ||
|
|
||
| @Suppress("OptionalUnit") | ||
| interface ElmRendererDelegate<Effect : Any, State : Any> { | ||
| fun render(state: State) | ||
| fun handleEffect(effect: Effect): Unit? = Unit | ||
| fun mapList(state: State): List<Any> = emptyList() | ||
| fun renderList(state: State, list: List<Any>): Unit = Unit | ||
| } | ||
|
|
||
| /** | ||
| * The function makes a connection between the store and the lifecycle owner by collecting states and effects | ||
| * and calling corresponds callbacks. | ||
| * | ||
| * Store creates and connects all required entities when given lifecycle reached CREATED state. | ||
| * | ||
| * In order to access previously saved state (via [saveState]) in [storeFactory] one must use | ||
| * SavedStateHandle.get<Bundle>(StateBundleKey) | ||
| */ | ||
| @Suppress("LongParameterList") | ||
| @MainThread | ||
| fun < | ||
| Event : Any, | ||
| Effect : Any, | ||
| State : Any, | ||
| > ElmRendererDelegate<Effect, State>.connectedElmStore( | ||
| key: String = this::class.java.canonicalName ?: this::class.java.simpleName, | ||
| defaultArgs: () -> Bundle = { | ||
| val args = when (this) { | ||
| is Fragment -> arguments | ||
| is ComponentActivity -> intent.extras | ||
| else -> null | ||
| } | ||
| args ?: bundleOf() | ||
| }, | ||
| saveState: Bundle.(State) -> Unit = {}, | ||
| storeFactory: SavedStateHandle.() -> Store<Event, Effect, State>, | ||
| ): Lazy<Store<Event, Effect, State>> { | ||
| require(this is ViewModelStoreOwner) { | ||
| "Should implement [ViewModelStoreOwner]" | ||
| } | ||
| require(this is SavedStateRegistryOwner) { | ||
| "Should implement [SavedStateRegistryOwner]" | ||
| } | ||
| return connectedElmStore( | ||
| key = key, | ||
| viewModelStoreOwner = { this }, | ||
| savedStateRegistryOwner = { this }, | ||
| defaultArgs = defaultArgs, | ||
| saveState = saveState, | ||
| storeFactory = storeFactory, | ||
| ) | ||
| } | ||
|
|
||
| @Suppress("LongParameterList") | ||
| @MainThread | ||
| fun < | ||
| Event : Any, | ||
| Effect : Any, | ||
| State : Any, | ||
| > ElmRendererDelegate<Effect, State>.connectedElmStore( | ||
| key: String = this::class.java.canonicalName ?: this::class.java.simpleName, | ||
| viewModelStoreOwner: () -> ViewModelStoreOwner, | ||
| savedStateRegistryOwner: () -> SavedStateRegistryOwner, | ||
| defaultArgs: () -> Bundle = { | ||
| val args = when (this) { | ||
| is Fragment -> arguments | ||
| is ComponentActivity -> intent.extras | ||
| else -> null | ||
| } | ||
| args ?: bundleOf() | ||
| }, | ||
| saveState: Bundle.(State) -> Unit = {}, | ||
| storeFactory: SavedStateHandle.() -> Store<Event, Effect, State>, | ||
| ): Lazy<Store<Event, Effect, State>> { | ||
| require(this is LifecycleOwner) { | ||
| "Should implement [LifecycleOwner]" | ||
| } | ||
| val lazyStore = elmStore( | ||
| storeFactory = storeFactory, | ||
| key = key, | ||
| viewModelStoreOwner = viewModelStoreOwner, | ||
| savedStateRegistryOwner = savedStateRegistryOwner, | ||
| saveState = saveState, | ||
| defaultArgs = defaultArgs, | ||
| ) | ||
| with(this) { | ||
| lifecycleScope.launch { | ||
| withCreated { | ||
| ElmRenderer( | ||
| store = lazyStore.value, | ||
| delegate = this@with, | ||
| lifecycle = lifecycle, | ||
| ) | ||
| } | ||
| } | ||
| } | ||
| return lazyStore | ||
| } |
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