Codeviewer: refactoring

examples/codeviewer/build.gradle.kts

@@ -9,7 +9,7 @@ buildscript {
 
     dependencies {
         // __LATEST_COMPOSE_RELEASE_VERSION__
-        classpath("org.jetbrains.compose:compose-gradle-plugin:0.1.0-build113")
+        classpath("org.jetbrains.compose:compose-gradle-plugin:0.2.0-build124")
         classpath("com.android.tools.build:gradle:4.0.1")
         classpath(kotlin("gradle-plugin", version = "1.4.0"))
     }

examples/codeviewer/common/src/androidMain/kotlin/org/jetbrains/codeviewer/platform/Resources.kt

@@ -2,9 +2,9 @@ package org.jetbrains.codeviewer.platform
 
 import android.graphics.BitmapFactory
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.graphics.ImageAsset
-import androidx.compose.ui.graphics.asImageAsset
-import androidx.compose.ui.platform.ContextAmbient
+import androidx.compose.ui.graphics.ImageBitmap
+import androidx.compose.ui.graphics.asImageBitmap
+import androidx.compose.ui.platform.AmbientContext
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontStyle
 import androidx.compose.ui.text.font.FontWeight
@@ -12,20 +12,20 @@ import java.io.InputStream
 import java.net.URL
 
 @Composable
-actual fun imageResource(res: String): ImageAsset {
-    val context = ContextAmbient.current
+actual fun imageResource(res: String): ImageBitmap {
+    val context = AmbientContext.current
     val id = context.resources.getIdentifier(res, "drawable", context.packageName)
     return androidx.compose.ui.res.imageResource(id)
 }
 
-actual suspend fun imageFromUrl(url: String): ImageAsset {
+actual suspend fun imageFromUrl(url: String): ImageBitmap {
     val bytes = URL(url).openStream().buffered().use(InputStream::readBytes)
-    return BitmapFactory.decodeByteArray(bytes, 0, bytes.size).asImageAsset()
+    return BitmapFactory.decodeByteArray(bytes, 0, bytes.size).asImageBitmap()
 }
 
 @Composable
 actual fun font(name: String, res: String, weight: FontWeight, style: FontStyle): Font {
-    val context = ContextAmbient.current
+    val context = AmbientContext.current
     val id = context.resources.getIdentifier(res, "font", context.packageName)
     return androidx.compose.ui.text.font.font(id, weight, style)
 }

examples/codeviewer/common/src/commonMain/kotlin/org/jetbrains/codeviewer/platform/Resources.kt

@@ -1,15 +1,15 @@
 package org.jetbrains.codeviewer.platform
 
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.graphics.ImageAsset
+import androidx.compose.ui.graphics.ImageBitmap
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontStyle
 import androidx.compose.ui.text.font.FontWeight
 
 @Composable
-expect fun imageResource(res: String): ImageAsset
+expect fun imageResource(res: String): ImageBitmap
 
-expect suspend fun imageFromUrl(url: String): ImageAsset
+expect suspend fun imageFromUrl(url: String): ImageBitmap
 
 @Composable
 expect fun font(name: String, res: String, weight: FontWeight, style: FontStyle): Font

examples/codeviewer/common/src/commonMain/kotlin/org/jetbrains/codeviewer/ui/editor/Editor.kt

@@ -6,7 +6,6 @@ import kotlinx.coroutines.CoroutineScope
 import org.jetbrains.codeviewer.platform.File
 import org.jetbrains.codeviewer.util.EmptyTextLines
 import org.jetbrains.codeviewer.util.SingleSelection
-import org.jetbrains.codeviewer.util.afterSet
 
 class Editor(
     val fileName: String,
@@ -27,7 +26,7 @@ class Editor(
     interface Lines {
         val lineNumberDigitCount: Int get() = size.toString().length
         val size: Int
-        fun get(index: Int): Line
+        operator fun get(index: Int): Line
     }
 
     class Content(val value: State<String>, val isCode: Boolean)

examples/codeviewer/common/src/commonMain/kotlin/org/jetbrains/codeviewer/ui/editor/EditorView.kt

@@ -14,7 +14,7 @@ import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.drawOpacity
-import androidx.compose.ui.platform.DensityAmbient
+import androidx.compose.ui.platform.AmbientDensity
 import androidx.compose.ui.selection.DisableSelection
 import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.text.SpanStyle
@@ -27,14 +27,13 @@ import org.jetbrains.codeviewer.ui.common.AppTheme
 import org.jetbrains.codeviewer.ui.common.Fonts
 import org.jetbrains.codeviewer.ui.common.Settings
 import org.jetbrains.codeviewer.util.LazyColumnFor
-import org.jetbrains.codeviewer.util.loadable
 import org.jetbrains.codeviewer.util.loadableScoped
 import org.jetbrains.codeviewer.util.withoutWidthConstraints
 import kotlin.text.Regex.Companion.fromLiteral
 
 @Composable
 fun EditorView(model: Editor, settings: Settings) = key(model) {
-    with (DensityAmbient.current) {
+    with (AmbientDensity.current) {
         SelectionContainer {
             Surface(
                 Modifier.fillMaxSize(),
@@ -68,7 +67,7 @@ fun EditorView(model: Editor, settings: Settings) = key(model) {
 }
 
 @Composable
-private fun Lines(lines: Editor.Lines, settings: Settings) = with(DensityAmbient.current) {
+private fun Lines(lines: Editor.Lines, settings: Settings) = with(AmbientDensity.current) {
     val maxNum = remember(lines.lineNumberDigitCount) {
         (1..lines.lineNumberDigitCount).joinToString(separator = "") { "9" }
     }
@@ -82,11 +81,8 @@ private fun Lines(lines: Editor.Lines, settings: Settings) = with(DensityAmbient
             modifier = Modifier.fillMaxSize(),
             state = scrollState,
             itemContent = { index ->
-                val line: Editor.Line? by loadable { lines.get(index) }
                 Box(Modifier.height(lineHeight)) {
-                    if (line != null) {
-                        Line(Modifier.align(Alignment.CenterStart), maxNum, line!!, settings)
-                    }
+                    Line(Modifier.align(Alignment.CenterStart), maxNum, lines[index], settings)
                 }
             }
         )

examples/codeviewer/common/src/commonMain/kotlin/org/jetbrains/codeviewer/ui/filetree/FileTreeView.kt

@@ -17,7 +17,7 @@ import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clipToBounds
 import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.platform.DensityAmbient
+import androidx.compose.ui.platform.AmbientDensity
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.TextUnit
@@ -46,7 +46,7 @@ fun FileTreeViewTabView() = Surface {
 fun FileTreeView(model: FileTree) = Surface(
     modifier = Modifier.fillMaxSize()
 ) {
-    with(DensityAmbient.current) {
+    with(AmbientDensity.current) {
         Box {
             val scrollState = rememberLazyListState()
             val fontSize = 14.sp

examples/codeviewer/common/src/commonMain/kotlin/org/jetbrains/codeviewer/ui/statusbar/StatusBar.kt

@@ -8,7 +8,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.Providers
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.platform.DensityAmbient
+import androidx.compose.ui.platform.AmbientDensity
 import androidx.compose.ui.unit.Density
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.lerp
@@ -35,7 +35,7 @@ fun StatusBar(settings: Settings) = Box(
 
         Spacer(Modifier.width(8.dp))
 
-        Providers(DensityAmbient provides DensityAmbient.current.scale(0.5f)) {
+        Providers(AmbientDensity provides AmbientDensity.current.scale(0.5f)) {
             Slider(
                 (settings.fontSize - MinFontSize) / (MaxFontSize - MinFontSize),
                 onValueChange = { settings.fontSize = lerp(MinFontSize, MaxFontSize, it) },

examples/codeviewer/common/src/commonMain/kotlin/org/jetbrains/codeviewer/util/State.kt

@@ -1,14 +0,0 @@
-package org.jetbrains.codeviewer.util
-
-import androidx.compose.runtime.MutableState
-
-fun <T> MutableState<T>.afterSet(
-    action: (T) -> Unit
-) = object : MutableState<T> by this {
-    override var value: T
-        get() = this@afterSet.value
-        set(value) {
-            this@afterSet.value = value
-            action(value)
-        }
-}

examples/codeviewer/common/src/desktopMain/kotlin/org/jetbrains/codeviewer/platform/Resources.kt

@@ -1,8 +1,8 @@
 package org.jetbrains.codeviewer.platform
 
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.graphics.ImageAsset
-import androidx.compose.ui.graphics.asImageAsset
+import androidx.compose.ui.graphics.ImageBitmap
+import androidx.compose.ui.graphics.asImageBitmap
 import androidx.compose.ui.text.font.Font
 import androidx.compose.ui.text.font.FontStyle
 import androidx.compose.ui.text.font.FontWeight
@@ -15,9 +15,9 @@ import java.net.URL
 @Composable
 actual fun imageResource(res: String) = androidx.compose.ui.res.imageResource("drawable/$res.png")
 
-actual suspend fun imageFromUrl(url: String): ImageAsset = withContext(Dispatchers.IO) {
+actual suspend fun imageFromUrl(url: String): ImageBitmap = withContext(Dispatchers.IO) {
     val bytes = URL(url).openStream().buffered().use(InputStream::readBytes)
-    Image.makeFromEncoded(bytes).asImageAsset()
+    Image.makeFromEncoded(bytes).asImageBitmap()
 }
 
 @Composable