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Merge pull request #109 from MohamedRejeb/0.5.x
Add FileSaverLauncher to desktop
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50 changes: 50 additions & 0 deletions
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...e-picker/src/desktopMain/kotlin/com/mohamedrejeb/calf/picker/FileSaverLauncher.desktop.kt
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package com.mohamedrejeb.calf.picker | ||
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import androidx.compose.runtime.Composable | ||
import androidx.compose.runtime.getValue | ||
import androidx.compose.runtime.rememberCoroutineScope | ||
import androidx.compose.runtime.rememberUpdatedState | ||
import com.mohamedrejeb.calf.io.KmpFile | ||
import com.mohamedrejeb.calf.picker.platform.awt.AwtFileSaver | ||
import kotlinx.coroutines.launch | ||
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@Composable | ||
fun rememberFileSaverLauncher( | ||
bytes: ByteArray?, | ||
baseName: String, | ||
extension: String, | ||
initialDirectory: String?, | ||
onResult: (KmpFile?) -> Unit, | ||
): FileSaverLauncher { | ||
val scope = rememberCoroutineScope() | ||
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val currentBytes by rememberUpdatedState(bytes) | ||
val currentBaseName by rememberUpdatedState(baseName) | ||
val currentExtension by rememberUpdatedState(extension) | ||
val currentInitialDirectory by rememberUpdatedState(initialDirectory) | ||
val currentOnResult by rememberUpdatedState(onResult) | ||
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return FileSaverLauncher( | ||
onLaunch = { | ||
scope.launch { | ||
val file = AwtFileSaver.saveFile( | ||
bytes = currentBytes, | ||
baseName = currentBaseName, | ||
extension = currentExtension, | ||
initialDirectory = currentInitialDirectory, | ||
parentWindow = null, | ||
) | ||
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currentOnResult(file) | ||
} | ||
} | ||
) | ||
} | ||
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class FileSaverLauncher( | ||
private val onLaunch: () -> Unit, | ||
) { | ||
fun launch() { | ||
onLaunch() | ||
} | ||
} |
60 changes: 60 additions & 0 deletions
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...e-picker/src/desktopMain/kotlin/com/mohamedrejeb/calf/picker/platform/awt/AwtFileSaver.kt
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package com.mohamedrejeb.calf.picker.platform.awt | ||
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import com.mohamedrejeb.calf.io.KmpFile | ||
import kotlinx.coroutines.suspendCancellableCoroutine | ||
import java.awt.Dialog | ||
import java.awt.FileDialog | ||
import java.awt.Frame | ||
import java.awt.Window | ||
import java.io.File | ||
import kotlin.coroutines.resume | ||
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internal object AwtFileSaver { | ||
suspend fun saveFile( | ||
bytes: ByteArray?, | ||
baseName: String, | ||
extension: String, | ||
initialDirectory: String?, | ||
parentWindow: Window?, | ||
): KmpFile? = suspendCancellableCoroutine { continuation -> | ||
fun handleResult(value: Boolean, files: Array<File>?) { | ||
if (value) { | ||
val file = files?.firstOrNull()?.let { file -> | ||
// Write bytes to file, or create a new file | ||
bytes?.let { file.writeBytes(bytes) } ?: file.createNewFile() | ||
KmpFile(file) | ||
} | ||
continuation.resume(file) | ||
} | ||
} | ||
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// Handle parentWindow: Dialog, Frame, or null | ||
val dialog = when (parentWindow) { | ||
is Dialog -> object : FileDialog(parentWindow, "Save dialog", SAVE) { | ||
override fun setVisible(value: Boolean) { | ||
super.setVisible(value) | ||
handleResult(value, files) | ||
} | ||
} | ||
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else -> object : FileDialog(parentWindow as? Frame, "Save dialog", SAVE) { | ||
override fun setVisible(value: Boolean) { | ||
super.setVisible(value) | ||
handleResult(value, files) | ||
} | ||
} | ||
} | ||
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// Set initial directory | ||
dialog.directory = initialDirectory | ||
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// Set file name | ||
dialog.file = "$baseName.$extension" | ||
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// Show the dialog | ||
dialog.isVisible = true | ||
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// Dispose the dialog when the continuation is cancelled | ||
continuation.invokeOnCancellation { dialog.dispose() } | ||
} | ||
} |