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/*
* Copyright 2023 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.compose.ui.platform
import androidx.compose.ui.InternalComposeUiApi
import androidx.compose.ui.SessionMutex
import androidx.compose.ui.text.input.PlatformTextInputMethodRequest
import java.awt.Component
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.suspendCancellableCoroutine
@OptIn(InternalComposeUiApi::class)
internal class DesktopTextInputSession(
coroutineScope: CoroutineScope,
private val inputComponent: PlatformInputComponent,
private val component: Component
) : PlatformTextInputSessionScope, CoroutineScope by coroutineScope {
private val innerSessionMutex = SessionMutex<Nothing?>()
override suspend fun startInputMethod(
request: PlatformTextInputMethodRequest
): Nothing = innerSessionMutex.withSessionCancellingPrevious(
// This session has no data, just init/dispose tasks.
sessionInitializer = { null }
) {
@Suppress("RemoveExplicitTypeArguments")
(suspendCancellableCoroutine<Nothing> { continuation ->
inputComponent.enableInput(request.inputMethodRequests)
component.addInputMethodListener(request.inputMethodListener)
continuation.invokeOnCancellation {
component.removeInputMethodListener(request.inputMethodListener)
inputComponent.disableInput(request.inputMethodRequests)
}
})
}
}