Register the Skiko UI implementation at Compose entry points

Wire registerSkikoComposeImplementation() into the Skiko-backed Compose
entry points so the ui-graphics/ui-text registries are populated before
any scene is created: desktop ComposePanel/ComposeWindowPanel, macOS
ComposeWindow, iOS ComposeUIViewController, web ComposeWindowInternal,
ImageComposeScene, and the ui-test rules. Adds the :compose:ui:ui-skiko
dependency to the modules that rely on the Skiko backend transitively
(ui, ui-test, ui-test-junit4, foundation) and registers in the affected
test harnesses.

Author: MatkovIvan

compose/foundation/foundation/build.gradle

@@ -124,6 +124,9 @@ androidXMultiplatform {
             dependencies {
                 // TODO(https://youtrack.jetbrains.com/issue/CMP-219) Remove API
                 api(libs.skiko)
+                // TODO(https://youtrack.jetbrains.com/issue/CMP-10338): Remove direct dependency
+                implementation(project(":compose:ui:ui-skiko"))
+
                 implementation(libs.atomicFu)
             }
         }

compose/foundation/foundation/src/skikoTest/kotlin/androidx/compose/foundation/copyPasteAndroidTests/text/TextDelegateIntegrationTest.kt

@@ -21,6 +21,8 @@ import androidx.compose.foundation.isEqualTo
 import androidx.compose.foundation.isTrue
 import androidx.compose.foundation.text.InternalFoundationTextApi
 import androidx.compose.foundation.text.TextDelegate
+import androidx.compose.ui.InternalComposeUiApi
+import androidx.compose.ui.platform.registerSkikoComposeImplementation
 import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.SpanStyle
 import androidx.compose.ui.text.TextStyle
@@ -32,12 +34,18 @@ import androidx.compose.ui.unit.Density
 import androidx.compose.ui.unit.LayoutDirection
 import androidx.compose.ui.unit.sp
 import kotlin.math.roundToInt
+import kotlin.test.BeforeTest
 import kotlin.test.Ignore
 import kotlin.test.Test
 
-@OptIn(InternalFoundationTextApi::class)
+@OptIn(InternalFoundationTextApi::class, InternalComposeUiApi::class)
 class TextDelegateIntegrationTest {
 
+    @BeforeTest
+    fun registerSkikoBackend() {
+        registerSkikoComposeImplementation()
+    }
+
     @Test
     @Ignore // TODO: test is failing
     fun minIntrinsicWidth_getter() = with(Density(1f, 1f)) {

compose/foundation/foundation/src/skikoTest/kotlin/androidx/compose/foundation/shape/AbsoluteCutCornerShapeTest.kt

@@ -16,6 +16,9 @@
 
 package androidx.compose.foundation.shape
 
+import androidx.compose.ui.InternalComposeUiApi
+import androidx.compose.ui.platform.registerSkikoComposeImplementation
+import kotlin.test.BeforeTest
 import androidx.compose.foundation.assertThat
 import androidx.compose.foundation.isEqualTo
 import androidx.compose.foundation.isFalse
@@ -31,8 +34,14 @@ import androidx.compose.ui.unit.dp
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
+@OptIn(InternalComposeUiApi::class)
 class AbsoluteCutCornerShapeTest {
 
+    @BeforeTest
+    fun registerSkikoBackend() {
+        registerSkikoComposeImplementation()
+    }
+
     private var layoutDirection: LayoutDirection? = null
 
     private val testParameters = arrayOf(

compose/foundation/foundation/src/skikoTest/kotlin/androidx/compose/foundation/shape/AbsoluteRoundedCornerShapeTest.kt

@@ -16,6 +16,9 @@
 
 package androidx.compose.foundation.shape
 
+import androidx.compose.ui.InternalComposeUiApi
+import androidx.compose.ui.platform.registerSkikoComposeImplementation
+import kotlin.test.BeforeTest
 import androidx.compose.foundation.assertThat
 import androidx.compose.foundation.isEqualTo
 import androidx.compose.foundation.isFalse
@@ -32,8 +35,14 @@ import androidx.compose.ui.unit.dp
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
+@OptIn(InternalComposeUiApi::class)
 class AbsoluteRoundedCornerShapeTest {
 
+    @BeforeTest
+    fun registerSkikoBackend() {
+        registerSkikoComposeImplementation()
+    }
+
     private var layoutDirection: LayoutDirection? = null
 
     private val testParameters = arrayOf(

compose/foundation/foundation/src/skikoTest/kotlin/androidx/compose/foundation/shape/CutCornerShapeTest.kt

@@ -16,6 +16,9 @@
 
 package androidx.compose.foundation.shape
 
+import androidx.compose.ui.InternalComposeUiApi
+import androidx.compose.ui.platform.registerSkikoComposeImplementation
+import kotlin.test.BeforeTest
 import androidx.compose.foundation.assertThat
 import androidx.compose.foundation.isEqualTo
 import androidx.compose.foundation.isFalse
@@ -33,8 +36,14 @@ import kotlin.test.Test
 import kotlin.test.assertEquals
 import kotlin.test.assertTrue
 
+@OptIn(InternalComposeUiApi::class)
 class CutCornerShapeTest {
 
+    @BeforeTest
+    fun registerSkikoBackend() {
+        registerSkikoComposeImplementation()
+    }
+
     private val density = Density(2f)
     private val size = Size(100.0f, 150.0f)
 

compose/foundation/foundation/src/skikoTest/kotlin/androidx/compose/foundation/shape/RoundedCornerShapeTest.kt

@@ -16,6 +16,9 @@
 
 package androidx.compose.foundation.shape
 
+import androidx.compose.ui.InternalComposeUiApi
+import androidx.compose.ui.platform.registerSkikoComposeImplementation
+import kotlin.test.BeforeTest
 import androidx.compose.foundation.assertThat
 import androidx.compose.foundation.isEqualTo
 import androidx.compose.foundation.isFalse
@@ -32,8 +35,14 @@ import androidx.compose.ui.unit.dp
 import kotlin.test.Test
 import kotlin.test.assertEquals
 
+@OptIn(InternalComposeUiApi::class)
 class RoundedCornerShapeTest {
 
+    @BeforeTest
+    fun registerSkikoBackend() {
+        registerSkikoComposeImplementation()
+    }
+
     private val density = Density(2f)
     private val size = Size(100.0f, 150.0f)
 

compose/foundation/foundation/src/skikoTest/kotlin/androidx/compose/foundation/text/CupertinoTextFieldDelegateTest.kt

@@ -16,6 +16,9 @@
 
 package androidx.compose.foundation.text
 
+import androidx.compose.ui.InternalComposeUiApi
+import androidx.compose.ui.platform.registerSkikoComposeImplementation
+import kotlin.test.BeforeTest
 import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.MultiParagraph
 import androidx.compose.ui.text.TextLayoutInput
@@ -34,7 +37,13 @@ import kotlin.test.Test
 import kotlin.test.assertEquals
 import kotlinx.test.IgnoreWasmTarget
 
+@OptIn(InternalComposeUiApi::class)
 class CupertinoTextFieldDelegateTest {
+
+    @BeforeTest
+    fun registerSkikoBackend() {
+        registerSkikoComposeImplementation()
+    }
     private val sampleText =
         "aaaa bbb cccc dd e fffffffff?????????!!!!!!!          ...\n" + "ggggggg tttt\n" +
             "Family emoji: \uD83D\uDC68\u200D\uD83D\uDC69\u200D\uD83D\uDC67\u200D\uD83D\uDC66\uD83D\uDC68\u200D\uD83D\uDC69\u200D\uD83D\uDC67\u200D\uD83D\uDC66, and some text at the end\n" +

compose/mpp/demo/build.gradle.kts

@@ -136,6 +136,7 @@ kotlin {
                 implementation(project(":compose:ui:ui-graphics"))
                 implementation(project(":compose:ui:ui-text"))
                 implementation(project(":compose:ui:ui-backhandler"))
+                implementation(project(":compose:ui:ui-skiko"))
                 implementation(project(":lifecycle:lifecycle-common"))
                 implementation(project(":lifecycle:lifecycle-runtime"))
                 implementation(project(":lifecycle:lifecycle-runtime-compose"))

compose/ui/ui-test-junit4/build.gradle

@@ -119,6 +119,7 @@ androidXMultiplatform {
             dependencies {
                 implementation(libs.truth)
                 implementation(libs.skiko)
+                implementation(project(":compose:ui:ui-skiko"))
             }
         }
 

compose/ui/ui-test-junit4/src/desktopMain/kotlin/androidx/compose/ui/test/junit4/DesktopComposeTestRule.desktop.kt

@@ -44,14 +44,15 @@ import org.junit.runners.model.Statement
             "coroutines are queued rather than executed immediately.",
     level = DeprecationLevel.WARNING,
 )
-@OptIn(InternalTestApi::class, ExperimentalTestApi::class)
-actual fun createComposeRule(): ComposeContentTestRule =
-    DesktopComposeTestRule(
+@OptIn(InternalTestApi::class, ExperimentalTestApi::class, InternalComposeUiApi::class)
+actual fun createComposeRule(): ComposeContentTestRule {
+    return DesktopComposeTestRule(
         DesktopComposeUiTest(
             effectContext = EmptyCoroutineContext,
             useStandardTestDispatcherForComposition = false
         )
     )
+}
 
 @Deprecated(
     message =
@@ -61,14 +62,15 @@ actual fun createComposeRule(): ComposeContentTestRule =
     level = DeprecationLevel.WARNING,
 )
 @ExperimentalTestApi
-@OptIn(InternalTestApi::class)
-actual fun createComposeRule(effectContext: CoroutineContext): ComposeContentTestRule =
-    DesktopComposeTestRule(
+@OptIn(InternalTestApi::class, InternalComposeUiApi::class)
+actual fun createComposeRule(effectContext: CoroutineContext): ComposeContentTestRule {
+    return DesktopComposeTestRule(
         DesktopComposeUiTest(
             effectContext = effectContext,
             useStandardTestDispatcherForComposition = false
         )
     )
+}
 
 @InternalTestApi
 @OptIn(ExperimentalTestApi::class)