Add IOS to OS list (#272)

skiko/src/commonMain/kotlin/org/jetbrains/skiko/OsArch.kt

@@ -4,6 +4,7 @@ enum class OS(val id: String) {
     Linux("linux"),
     Windows("windows"),
     MacOS("macos"),
+    Ios("ios"),
     JS("js")
     ;
 

skiko/src/iosMain/kotlin/org/jetbrains/skiko/SkiaLayer.ios.kt

@@ -71,7 +71,6 @@ actual open class SkiaLayer actual constructor(
         contextHandler.apply {
             if (!initContext()) {
                 error("initContext() failure")
-                return
             }
             initCanvas()
             clearCanvas()

skiko/src/jvmMain/kotlin/org/jetbrains/skiko/PlatformOperations.kt

@@ -85,7 +85,7 @@ internal val platformOperations: PlatformOperations by lazy {
                 }
             }
         }
-        OS.JS -> {
+        OS.JS, OS.Ios -> {
             TODO("Commonize me")
         }
     }

skiko/src/jvmMain/kotlin/org/jetbrains/skiko/RenderFactory.jvm.kt

@@ -39,7 +39,7 @@ internal actual fun makeDefaultRenderFactory(): RenderFactory {
                 GraphicsApi.DIRECT_SOFTWARE -> LinuxSoftwareRedrawer(layer, properties)
                 else -> LinuxOpenGLRedrawer(layer, properties)
             }
-            OS.JS -> {
+            OS.JS, OS.Ios -> {
                 TODO("Commonize me")
             }
         }

skiko/src/jvmMain/kotlin/org/jetbrains/skiko/SkikoProperties.kt

@@ -56,7 +56,7 @@ internal object SkikoProperties {
             OS.MacOS -> return GraphicsApi.METAL
             OS.Linux -> return GraphicsApi.OPENGL
             OS.Windows -> return GraphicsApi.DIRECT3D
-            OS.JS -> TODO("commonize me")
+            OS.JS, OS.Ios -> TODO("commonize me")
         }
     }
 
@@ -68,7 +68,7 @@ internal object SkikoProperties {
             OS.Linux -> renderApiList = mutableListOf(GraphicsApi.OPENGL, GraphicsApi.DIRECT_SOFTWARE, GraphicsApi.SOFTWARE)
             OS.MacOS -> renderApiList = mutableListOf(GraphicsApi.METAL, GraphicsApi.SOFTWARE)
             OS.Windows -> renderApiList = mutableListOf(GraphicsApi.DIRECT3D, GraphicsApi.OPENGL, GraphicsApi.DIRECT_SOFTWARE, GraphicsApi.SOFTWARE)
-            OS.JS -> TODO("commonize me")
+            OS.JS, OS.Ios -> TODO("commonize me")
         }
         renderApiList.remove(head)
 

skiko/src/nativeMain/kotlin/org/jetbrains/skiko/OsArch.native.kt

@@ -5,6 +5,7 @@ actual val hostOs: OS by lazy {
         OsFamily.MACOSX -> OS.MacOS
         OsFamily.LINUX -> OS.Linux
         OsFamily.WINDOWS -> OS.Windows
+        OsFamily.IOS -> OS.Ios
         else -> throw Error("Unsupported OS ${Platform.osFamily}")
     }
 }