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84 changes: 84 additions & 0 deletions
84
precompose/src/androidMain/kotlin/moe/tlaster/precompose/PreComposeApp.android.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| package moe.tlaster.precompose | ||
|
|
||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.CompositionLocalProvider | ||
| import androidx.compose.runtime.DisposableEffect | ||
| import androidx.compose.runtime.LaunchedEffect | ||
| import androidx.compose.runtime.collectAsState | ||
| import androidx.compose.runtime.getValue | ||
| import androidx.compose.runtime.remember | ||
| import androidx.compose.runtime.saveable.LocalSaveableStateRegistry | ||
| import androidx.compose.ui.Modifier | ||
| import androidx.lifecycle.DefaultLifecycleObserver | ||
| import moe.tlaster.precompose.lifecycle.Lifecycle | ||
| import moe.tlaster.precompose.lifecycle.LocalLifecycleOwner | ||
| import moe.tlaster.precompose.lifecycle.PreComposeViewModel | ||
| import moe.tlaster.precompose.stateholder.LocalSavedStateHolder | ||
| import moe.tlaster.precompose.stateholder.LocalStateHolder | ||
| import moe.tlaster.precompose.stateholder.SavedStateHolder | ||
| import moe.tlaster.precompose.ui.LocalBackDispatcherOwner | ||
|
|
||
| @Composable | ||
| actual fun PreComposeApp( | ||
| modifier: Modifier, | ||
| content: @Composable () -> Unit, | ||
| ) { | ||
| val viewModel = androidx.lifecycle.viewmodel.compose.viewModel<PreComposeViewModel>() | ||
|
|
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| val lifecycle = androidx.compose.ui.platform.LocalLifecycleOwner.current.lifecycle | ||
| val onBackPressedDispatcher = checkNotNull(androidx.activity.compose.LocalOnBackPressedDispatcherOwner.current) { | ||
| "No OnBackPressedDispatcherOwner was provided via LocalOnBackPressedDispatcherOwner" | ||
| }.onBackPressedDispatcher | ||
|
|
||
| DisposableEffect(lifecycle) { | ||
| val observer = object : DefaultLifecycleObserver { | ||
| override fun onCreate(owner: androidx.lifecycle.LifecycleOwner) { | ||
| super.onCreate(owner) | ||
| onBackPressedDispatcher.addCallback(owner, viewModel.backPressedCallback) | ||
| } | ||
|
|
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| override fun onResume(owner: androidx.lifecycle.LifecycleOwner) { | ||
| super.onResume(owner) | ||
| viewModel.lifecycleRegistry.currentState = Lifecycle.State.Active | ||
| } | ||
|
|
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| override fun onPause(owner: androidx.lifecycle.LifecycleOwner) { | ||
| super.onPause(owner) | ||
| viewModel.lifecycleRegistry.currentState = Lifecycle.State.InActive | ||
| } | ||
|
|
||
| // override fun onDestroy(owner: androidx.lifecycle.LifecycleOwner) { | ||
| // super.onDestroy(owner) | ||
| // if (!isChangingConfigurations) { | ||
| // viewModel.lifecycleRegistry.currentState = Lifecycle.State.Destroyed | ||
| // } | ||
| // } | ||
| } | ||
| lifecycle.addObserver(observer) | ||
| onDispose { | ||
| lifecycle.removeObserver(observer) | ||
| } | ||
| } | ||
|
|
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| val state by viewModel.backDispatcher.canHandleBackPress.collectAsState(false) | ||
|
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| val saveableStateRegistry = LocalSaveableStateRegistry.current | ||
| val savedStateHolder = remember(saveableStateRegistry) { | ||
| SavedStateHolder( | ||
| "root", | ||
| saveableStateRegistry, | ||
| ) | ||
| } | ||
|
|
||
| LaunchedEffect(state) { | ||
| viewModel.backPressedCallback.isEnabled = state | ||
| } | ||
| CompositionLocalProvider( | ||
| LocalLifecycleOwner provides viewModel, | ||
| LocalStateHolder provides viewModel.stateHolder, | ||
| LocalBackDispatcherOwner provides viewModel, | ||
| LocalSavedStateHolder provides savedStateHolder, | ||
| ) { | ||
| content.invoke() | ||
| } | ||
| } |
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10 changes: 10 additions & 0 deletions
10
precompose/src/commonMain/kotlin/moe/tlaster/precompose/PreComposeApp.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| package moe.tlaster.precompose | ||
|
|
||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.ui.Modifier | ||
|
|
||
| @Composable | ||
| expect fun PreComposeApp( | ||
| modifier: Modifier = Modifier, | ||
| content: @Composable () -> Unit = {}, | ||
| ) |
43 changes: 43 additions & 0 deletions
43
precompose/src/nonAndroidMain/kotlin/moe/tlaster/precompose/PreComposeApp.nonAndroid.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,43 @@ | ||
| package moe.tlaster.precompose | ||
|
|
||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.CompositionLocalProvider | ||
| import androidx.compose.runtime.remember | ||
| import androidx.compose.ui.Modifier | ||
| import moe.tlaster.precompose.lifecycle.LifecycleOwner | ||
| import moe.tlaster.precompose.lifecycle.LifecycleRegistry | ||
| import moe.tlaster.precompose.lifecycle.LocalLifecycleOwner | ||
| import moe.tlaster.precompose.stateholder.LocalStateHolder | ||
| import moe.tlaster.precompose.stateholder.StateHolder | ||
| import moe.tlaster.precompose.ui.BackDispatcher | ||
| import moe.tlaster.precompose.ui.BackDispatcherOwner | ||
| import moe.tlaster.precompose.ui.LocalBackDispatcherOwner | ||
|
|
||
| @Composable | ||
| actual fun PreComposeApp( | ||
| modifier: Modifier, | ||
| content: @Composable () -> Unit, | ||
| ) { | ||
| val holder = remember { | ||
| PreComposeWindowHolder() | ||
| } | ||
| CompositionLocalProvider( | ||
| LocalLifecycleOwner provides holder, | ||
| LocalStateHolder provides holder.stateHolder, | ||
| LocalBackDispatcherOwner provides holder, | ||
| ) { | ||
| content.invoke() | ||
| } | ||
| } | ||
|
|
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| class PreComposeWindowHolder : LifecycleOwner, BackDispatcherOwner { | ||
| override val lifecycle by lazy { | ||
| LifecycleRegistry() | ||
| } | ||
| val stateHolder by lazy { | ||
| StateHolder() | ||
| } | ||
| override val backDispatcher by lazy { | ||
| BackDispatcher() | ||
| } | ||
| } |