Add tooling improvements

components/Kapp/demo/build.gradle.kts

@@ -12,6 +12,11 @@ kotlin {
         named("desktopMain") {
             dependencies {
                 implementation(compose.desktop.currentOs)
+
+            }
+        }
+        named("commonMain") {
+            dependencies {
                 implementation(project(":Kapp:library"))
             }
         }

components/Kapp/demo/src/commonMain/kotlin/org/jetbrains/compose/kapp/demo/MainMultiFrame.kt

@@ -0,0 +1,33 @@
+package org.jetbrains.compose.kapp.demo
+
+import androidx.compose.foundation.layout.Column
+import androidx.compose.material.Button
+import androidx.compose.material.Text
+import androidx.compose.runtime.*
+
+import org.jetbrains.compose.kapp.*
+
+fun multiFrameApp() = kapp(title = "Kapp demo") {
+    var visible = remember { mutableStateOf(5) }
+
+    for (index in 0 .. visible.value) {
+        Frame {
+            FrameContent(index, visible)
+        }
+    }
+}
+
+@Composable
+fun FrameContent(index: Int, visible: MutableState<Int>) {
+    Column {
+        Text("I am frame $index")
+        if (index == 0) {
+            Button(onClick = { visible.value++ }) {
+                Text("Add")
+            }
+            Button(onClick = { if (visible.value > 1) visible.value-- }) {
+                Text("Remove")
+            }
+        }
+    }
+}

components/Kapp/demo/src/commonMain/kotlin/org/jetbrains/compose/kapp/demo/MainSimple.kt

@@ -1,6 +1,5 @@
-package org.jetbrains.compose.app.demo
+package org.jetbrains.compose.kapp.demo
 
-import androidx.compose.desktop.ui.tooling.preview.Preview
 import androidx.compose.foundation.layout.*
 import androidx.compose.material.Button
 import androidx.compose.material.Text
@@ -9,13 +8,12 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.unit.dp
 import org.jetbrains.compose.kapp.simpleKapp
 
-fun main() = simpleKapp(name = "Kapp demo") {
-    Content()
+fun simpleDemoApp() = simpleKapp(name = "Kapp demo") {
+    SimpleAppContent()
 }
 
-@Preview
 @Composable
-fun Content() {
+fun SimpleAppContent() {
     var counter by remember { mutableStateOf(0) }
     Column {
         Text("I an app: $counter")

components/Kapp/demo/src/desktopMain/kotlin/org/jetbrains/compose/kapp/demo/Main.kt

@@ -1,30 +0,0 @@
-package org.jetbrains.compose.kapp.demo
-
-import androidx.compose.foundation.layout.Column
-import androidx.compose.material.Button
-import androidx.compose.material.Text
-import androidx.compose.runtime.*
-
-import org.jetbrains.compose.kapp.*
-
-fun main() = kapp(
-    title = "App demo"
-) {
-    var visible by remember { mutableStateOf(5) }
-
-    for (index in 0 .. visible) {
-        Frame {
-            Column {
-                Text("I am frame $index")
-                if (index == 0) {
-                    Button(onClick = { visible++ }) {
-                        Text("Add")
-                    }
-                    Button(onClick = { if (visible > 1) visible-- }) {
-                        Text("Remove")
-                    }
-                }
-            }
-        }
-    }
-}

components/Kapp/demo/src/desktopMain/kotlin/org/jetbrains/compose/kapp/demo/PreviewComplex.desktop.kt

@@ -0,0 +1,19 @@
+package org.jetbrains.compose.kapp.demo
+
+import androidx.compose.desktop.ui.tooling.preview.Preview
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.mutableStateOf
+
+@Preview
+@Composable
+fun PreviewFrame0() {
+    FrameContent(0, mutableStateOf(1))
+}
+
+@Preview
+@Composable
+fun PreviewFrame1() {
+    FrameContent(1, mutableStateOf(2))
+}
+
+fun main() = multiFrameApp()

components/Kapp/demo/src/desktopMain/kotlin/org/jetbrains/compose/kapp/demo/PreviewSimple.desktop.kt

@@ -0,0 +1,12 @@
+package org.jetbrains.compose.kapp.demo
+
+import androidx.compose.desktop.ui.tooling.preview.Preview
+import androidx.compose.runtime.Composable
+
+@Preview
+@Composable
+fun PreviewSimple() {
+    SimpleAppContent()
+}
+
+fun main() = simpleDemoApp()

components/Kapp/library/src/desktopMain/kotlin/org/jetbrains/compose/kapp/App.desktop.kt

@@ -11,7 +11,9 @@ import kotlin.system.exitProcess
 class AppWindowScope : FrameWindowScope {
     val state = WindowState()
     override val window: ComposeWindow = ComposeWindow()
-    fun onClose() {}
+    fun onClose() {
+
+    }
 }
 
 @Composable
@@ -23,7 +25,7 @@ actual fun KAppScope.Frame(content: @Composable () -> Unit) {
     }
 }
 
-class AppAppScope : KAppScope, androidx.compose.ui.window.ApplicationScope {
+class AppAppScope : KAppScope, ApplicationScope {
     override fun exitApplication() {
         println("Exit application")
         SwingUtilities.invokeLater {