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Add AirshipEmbeddedViewGroup to support carousels and other custom la…
…youts (#1561)
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105
...ion-compose/src/main/java/com/urbanairship/automation/compose/AirshipEmbeddedViewGroup.kt
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| @@ -0,0 +1,105 @@ | ||
| /* Copyright Airship and Contributors */ | ||
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| package com.urbanairship.automation.compose | ||
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| import androidx.compose.foundation.layout.Box | ||
| import androidx.compose.foundation.layout.BoxScope | ||
| import androidx.compose.foundation.layout.fillMaxSize | ||
| import androidx.compose.foundation.layout.fillMaxWidth | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.Immutable | ||
| import androidx.compose.runtime.State | ||
| import androidx.compose.runtime.collectAsState | ||
| import androidx.compose.runtime.derivedStateOf | ||
| import androidx.compose.runtime.rememberCoroutineScope | ||
| import androidx.compose.runtime.structuralEqualityPolicy | ||
| import androidx.compose.ui.Modifier | ||
| import androidx.compose.ui.platform.LocalContext | ||
| import androidx.compose.ui.tooling.preview.Preview | ||
| import androidx.lifecycle.compose.collectAsStateWithLifecycle | ||
| import com.urbanairship.android.layout.EmbeddedDisplayRequest | ||
| import com.urbanairship.android.layout.ui.EmbeddedLayout | ||
| import com.urbanairship.embedded.AirshipEmbeddedInfo | ||
| import com.urbanairship.embedded.EmbeddedViewManager | ||
| import kotlinx.coroutines.flow.distinctUntilChanged | ||
| import kotlinx.coroutines.flow.map | ||
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| /** | ||
| * A container that allows all embedded content for the given [embeddedId] | ||
| * to be displayed using the provided [content] composable. | ||
| * | ||
| * @param embeddedId The embedded ID. | ||
| * @param modifier The modifier to be applied to the layout. | ||
| * @param comparator Optional [Comparator] used to sort available embedded view content. | ||
| * @param content The `Composable` that will display the list of embedded view content. | ||
| */ | ||
| @Composable | ||
| public fun AirshipEmbeddedViewGroup( | ||
| embeddedId: String, | ||
| modifier: Modifier = Modifier, | ||
| comparator: Comparator<AirshipEmbeddedInfo>? = null, | ||
| content: @Composable BoxScope.(embeddedViews: List<EmbeddedViewItem>) -> Unit | ||
| ) { | ||
| val scope = rememberCoroutineScope() | ||
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| val displayRequests = EmbeddedViewManager.displayRequests(embeddedId, comparator, scope) | ||
| .map { it.list } | ||
| .distinctUntilChanged() | ||
| .collectAsStateWithLifecycle(emptyList()) | ||
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| val items: State<List<EmbeddedViewItem>> = derivedStateOf(policy = structuralEqualityPolicy()) { | ||
| displayRequests.value.map { request -> EmbeddedViewItem(request = request) } | ||
| } | ||
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| Box(modifier) { | ||
| content(items.value) | ||
| } | ||
| } | ||
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| /** | ||
| * An embedded view item, containing the [AirshipEmbeddedInfo] and the content to display. | ||
| */ | ||
| @Immutable | ||
| public data class EmbeddedViewItem internal constructor( | ||
| private val request: EmbeddedDisplayRequest | ||
| ) { | ||
| /** The [AirshipEmbeddedInfo] for this embedded content. */ | ||
| public val info: AirshipEmbeddedInfo = AirshipEmbeddedInfo( | ||
| embeddedId = request.embeddedViewId, | ||
| instanceId = request.viewInstanceId, | ||
| priority = request.priority, | ||
| extras = request.extras, | ||
| ) | ||
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| /** The content to display for this embedded view item. */ | ||
| @Composable | ||
| public fun content() { | ||
| val layout = EmbeddedLayout( | ||
| context = LocalContext.current, | ||
| embeddedViewId = request.embeddedViewId, | ||
| viewInstanceId = request.viewInstanceId, | ||
| args = request.displayArgsProvider.invoke(), | ||
| embeddedViewManager = EmbeddedViewManager | ||
| ) | ||
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| EmbeddedViewWrapper( | ||
| embeddedId = request.embeddedViewId, | ||
| embeddedLayout = layout, | ||
| embeddedSize = layout.getPlacement()?.size?.toEmbeddedSize(), | ||
| // Consumers provide their own placeholder, if desired. | ||
| placeholder = null, | ||
| modifier = Modifier.fillMaxWidth() | ||
| ) | ||
| } | ||
| } | ||
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| @Preview | ||
| @Composable | ||
| private fun AirshipEmbeddedViewPagerPreview() { | ||
| AirshipEmbeddedViewGroup( | ||
| embeddedId = "embeddedId", | ||
| modifier = Modifier.fillMaxSize() | ||
| ) { views -> | ||
| views.first().content() | ||
| } | ||
| } |
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