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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,176 @@ | ||
| package dev.datlag.kcef | ||
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| import dev.datlag.kcef.common.existsSafely | ||
| import dev.datlag.kcef.common.suspendCatching | ||
| import kotlinx.coroutines.flow.MutableStateFlow | ||
| import kotlinx.coroutines.flow.first | ||
| import kotlinx.coroutines.runBlocking | ||
| import org.cef.CefApp | ||
| import org.cef.CefClient | ||
| import java.io.File | ||
| import kotlin.properties.Delegates | ||
|
|
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| data object KCEF { | ||
|
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| private val state: MutableStateFlow<State> = MutableStateFlow(State.New) | ||
| private var cefApp by Delegates.notNull<CefApp>() | ||
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| @JvmOverloads | ||
| suspend fun init( | ||
| builder: KCEFBuilder.() -> Unit, | ||
| onError: (Throwable?) -> Unit = { }, | ||
| onRestartRequired: () -> Unit = { } | ||
| ) = init( | ||
| builder = KCEFBuilder().apply(builder), | ||
| onError = onError, | ||
| onRestartRequired = onRestartRequired | ||
| ) | ||
|
|
||
| @JvmOverloads | ||
| fun initBlocking( | ||
| builder: KCEFBuilder.() -> Unit, | ||
| onError: (Throwable?) -> Unit = { }, | ||
| onRestartRequired: () -> Unit = { } | ||
| ) = runBlocking { | ||
| init(builder, onError, onRestartRequired) | ||
| } | ||
|
|
||
| @JvmOverloads | ||
| suspend fun init( | ||
| builder: KCEFBuilder, | ||
| onError: (Throwable?) -> Unit = { }, | ||
| onRestartRequired: () -> Unit = { } | ||
| ) { | ||
| val currentBuilder = when (state.value) { | ||
| State.Disposed -> throw CefException.Disposed | ||
| State.Initializing, State.Initialized -> null | ||
| State.New, is State.Error -> { | ||
| state.emit(State.Initializing) | ||
| builder | ||
| } | ||
| } ?: return | ||
|
|
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| val installOk = File(builder.installDir, "install.lock").existsSafely() | ||
|
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| if (installOk) { | ||
| val result = suspendCatching { | ||
| currentBuilder.build() | ||
| } | ||
| setInitResult(result) | ||
| result.exceptionOrNull()?.let(onError) | ||
| } else { | ||
| val installResult = suspendCatching { | ||
| builder.install() | ||
| } | ||
| installResult.exceptionOrNull()?.let { | ||
| setInitResult(Result.failure(it)) | ||
| onError(it) | ||
| } | ||
|
|
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| val result = suspendCatching { | ||
| builder.build() | ||
| } | ||
|
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| setInitResult(result) | ||
| if (result.isFailure) { | ||
| result.exceptionOrNull()?.let(onError) | ||
| setInitResult(Result.failure(CefException.ApplicationRestartRequired)) | ||
| onRestartRequired.invoke() | ||
| } | ||
| } | ||
| } | ||
|
|
||
| @JvmOverloads | ||
| fun initBlocking( | ||
| builder: KCEFBuilder, | ||
| onError: (Throwable?) -> Unit = { }, | ||
| onRestartRequired: () -> Unit = { } | ||
| ) = runBlocking { | ||
| init(builder, onError, onRestartRequired) | ||
| } | ||
|
|
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| suspend fun newClient(): CefClient { | ||
| return when (state.value) { | ||
| State.New -> throw CefException.NotInitialized | ||
| State.Disposed -> throw CefException.Disposed | ||
| is State.Error -> throw CefException.Error((state.value as? State.Error)?.exception) | ||
| State.Initialized -> cefApp.createClient() | ||
| State.Initializing -> { | ||
| state.first { it != State.Initializing } | ||
|
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| return newClient() | ||
| } | ||
| } | ||
| } | ||
|
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| fun newClientBlocking(): CefClient = runBlocking { | ||
| newClient() | ||
| } | ||
|
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| @JvmOverloads | ||
| suspend fun newClientOrNull(onError: (Throwable?) -> Unit = { }): CefClient? { | ||
| return when (state.value) { | ||
| State.New -> { | ||
| onError(CefException.NotInitialized) | ||
| null | ||
| } | ||
| State.Disposed -> { | ||
| onError(CefException.Disposed) | ||
| null | ||
| } | ||
| is State.Error -> { | ||
| onError(CefException.Error((state.value as? State.Error)?.exception)) | ||
| null | ||
| } | ||
| State.Initialized -> cefApp.createClient() | ||
| State.Initializing -> { | ||
| state.first { it != State.Initializing } | ||
|
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| return newClientOrNull(onError) | ||
| } | ||
| } | ||
| } | ||
|
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| @JvmOverloads | ||
| fun newClientOrNullBlocking(onError: (Throwable?) -> Unit = { }): CefClient? = runBlocking { | ||
| newClientOrNull(onError) | ||
| } | ||
|
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| suspend fun dispose() { | ||
| when (state.value) { | ||
| State.New, State.Disposed, is State.Error -> return | ||
| State.Initializing -> { | ||
| state.first { it != State.Initializing } | ||
|
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| return dispose() | ||
| } | ||
| State.Initialized -> { | ||
| state.emit(State.Disposed) | ||
| cefApp.dispose() | ||
| } | ||
| } | ||
| } | ||
|
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| fun disposeBlocking() = runBlocking { | ||
| dispose() | ||
| } | ||
|
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| private fun setInitResult(result: Result<CefApp>): Boolean { | ||
| val nextState = if (result.isSuccess) { | ||
| cefApp = result.getOrThrow() | ||
| State.Initialized | ||
| } else { | ||
| State.Error(result.exceptionOrNull()) | ||
| } | ||
|
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| return state.compareAndSet(State.Initializing, nextState) | ||
| } | ||
|
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| private sealed class State { | ||
| data object New : State() | ||
| data object Initializing : State() | ||
| data object Initialized : State() | ||
| data class Error(val exception: Throwable?) : State() | ||
| data object Disposed : State() | ||
| } | ||
| } |
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