Prepare dynamic theme choosing

panel-core/build.gradle.kts

@@ -3,6 +3,7 @@ plugins {
     id("convention.compose")
     id("convention-publish")
     id("convention.detekt")
+    alias(stack.plugins.kotlin.serialization)
 }
 
 description = "Debug panel core library"
@@ -51,7 +52,9 @@ dependencies {
     implementation(androidx.appcompat)
     implementation(androidx.lifecycle.livedata)
 
+    implementation(androidx.datastore)
     implementation(stack.kotlinx.coroutines.android)
+    implementation(stack.kotlinx.serialization.json)
     implementation(stack.timber)
     implementation(stack.material)
 

panel-core/src/main/kotlin/com/redmadrobot/debug/core/DebugPanelInstance.kt

@@ -4,9 +4,11 @@ import android.app.Application
 import android.content.Context
 import androidx.lifecycle.LiveData
 import androidx.lifecycle.MutableLiveData
+import com.redmadrobot.debug.core.data.storage.theme.ThemeDataStore
 import com.redmadrobot.debug.core.internal.CommonContainer
 import com.redmadrobot.debug.core.plugin.Plugin
 import com.redmadrobot.debug.core.plugin.PluginManager
+import com.redmadrobot.debug.uikit.theme.model.ThemeMode
 import kotlinx.coroutines.channels.BufferOverflow
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.MutableSharedFlow
@@ -22,6 +24,9 @@ internal class DebugPanelInstance(
         extraBufferCapacity = 1,
         onBufferOverflow = BufferOverflow.DROP_OLDEST,
     )
+    private val themeDataStore by lazy {
+        ThemeDataStore(context = application.applicationContext)
+    }
 
     init {
         initContainer(application.applicationContext)
@@ -46,6 +51,16 @@ internal class DebugPanelInstance(
             ?: error("PluginManager not initialised")
     }
 
+    internal fun observeDebugPanelTheme(): Flow<ThemeMode> {
+        return themeDataStore.observeThemeMode()
+    }
+
+    internal suspend fun updateDebugPanelTheme(themeMode: ThemeMode) {
+        themeDataStore.saveThemeMode(mode = themeMode)
+    }
+
+    internal fun getSelectedTheme() = themeDataStore.getSelectedTheme()
+
     private fun initContainer(context: Context) {
         commonContainer = CommonContainer(context)
     }

panel-core/src/main/kotlin/com/redmadrobot/debug/core/data/storage/model/ThemeData.kt

@@ -0,0 +1,9 @@
+package com.redmadrobot.debug.core.data.storage.model
+
+import com.redmadrobot.debug.uikit.theme.model.ThemeMode
+import kotlinx.serialization.Serializable
+
+@Serializable
+internal data class ThemeData(
+    val themeMode: ThemeMode = ThemeMode.System,
+)

panel-core/src/main/kotlin/com/redmadrobot/debug/core/data/storage/theme/ThemeDataSerializer.kt

@@ -0,0 +1,23 @@
+package com.redmadrobot.debug.core.data.storage.theme
+
+import androidx.datastore.core.Serializer
+import com.redmadrobot.debug.core.data.storage.model.ThemeData
+import kotlinx.serialization.ExperimentalSerializationApi
+import kotlinx.serialization.json.Json
+import kotlinx.serialization.json.decodeFromStream
+import kotlinx.serialization.json.encodeToStream
+import java.io.InputStream
+import java.io.OutputStream
+
+@OptIn(ExperimentalSerializationApi::class)
+internal object ThemeDataSerializer : Serializer<ThemeData> {
+    override val defaultValue: ThemeData = ThemeData()
+
+    override suspend fun readFrom(input: InputStream): ThemeData {
+        return Json.decodeFromStream(input)
+    }
+
+    override suspend fun writeTo(themeData: ThemeData, output: OutputStream) {
+        Json.encodeToStream(themeData, output)
+    }
+}

panel-core/src/main/kotlin/com/redmadrobot/debug/core/data/storage/theme/ThemeDataStore.kt

@@ -0,0 +1,24 @@
+package com.redmadrobot.debug.core.data.storage.theme
+
+import android.content.Context
+import com.redmadrobot.debug.uikit.theme.model.ThemeMode
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.map
+import kotlinx.coroutines.runBlocking
+
+internal class ThemeDataStore(private val context: Context) {
+    private val dataStore by lazy { context.themeStorage }
+
+    fun getSelectedTheme(): ThemeMode {
+        return runBlocking { dataStore.data.first().themeMode }
+    }
+
+    fun observeThemeMode(): Flow<ThemeMode> {
+        return dataStore.data.map { it.themeMode }
+    }
+
+    suspend fun saveThemeMode(mode: ThemeMode) {
+        dataStore.updateData { data -> data.copy(themeMode = mode) }
+    }
+}

panel-core/src/main/kotlin/com/redmadrobot/debug/core/data/storage/theme/ThemeStorage.kt

@@ -0,0 +1,9 @@
+package com.redmadrobot.debug.core.data.storage.theme
+
+import android.content.Context
+import androidx.datastore.dataStore
+
+internal val Context.themeStorage by dataStore(
+    fileName = "debug_panel_theme.json",
+    serializer = ThemeDataSerializer,
+)

panel-core/src/main/kotlin/com/redmadrobot/debug/core/inapp/compose/DebugPanelScreen.kt

@@ -28,10 +28,16 @@ import androidx.compose.ui.unit.dp
 import com.redmadrobot.debug.core.R
 import com.redmadrobot.debug.core.extension.getAllPlugins
 import com.redmadrobot.debug.core.plugin.Plugin
+import com.redmadrobot.debug.uikit.theme.model.ThemeMode
 import kotlinx.coroutines.launch
 
+@Suppress("UnusedParameter")
 @Composable
-public fun DebugPanelScreen(onClose: () -> Unit) {
+public fun DebugPanelScreen(
+    themeMode: ThemeMode,
+    onClose: () -> Unit,
+    onThemeModeChange: (ThemeMode) -> Unit = {}
+) {
     val plugins = remember { getAllPlugins() }
     val pluginsName = remember { plugins.map { it.getName() } }
     val pagerState = rememberPagerState(initialPage = 0, pageCount = { plugins.size })

panel-core/src/main/kotlin/com/redmadrobot/debug/core/ui/debugpanel/DebugPanelActivity.kt

@@ -3,18 +3,32 @@ package com.redmadrobot.debug.core.ui.debugpanel
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
+import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
+import androidx.lifecycle.lifecycleScope
+import com.redmadrobot.debug.core.DebugPanel
 import com.redmadrobot.debug.core.inapp.compose.DebugPanelScreen
 import com.redmadrobot.debug.uikit.theme.DebugPanelTheme
-import com.redmadrobot.debug.uikit.theme.ThemeState
+import kotlinx.coroutines.launch
 
 internal class DebugPanelActivity : ComponentActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
+
         setContent {
-            val themeState = remember { ThemeState() }
-            DebugPanelTheme(themeState = themeState) {
-                DebugPanelScreen(onClose = { finish() })
+            val debugPanel = remember { DebugPanel.getInstance()!! }
+            val themeMode by debugPanel.observeDebugPanelTheme()
+                .collectAsStateWithLifecycle(initialValue = debugPanel.getSelectedTheme())
+
+            DebugPanelTheme(themeMode = themeMode) {
+                DebugPanelScreen(
+                    themeMode = themeMode,
+                    onThemeModeChange = { mode ->
+                        lifecycleScope.launch { debugPanel.updateDebugPanelTheme(themeMode = mode) }
+                    },
+                    onClose = { finish() },
+                )
             }
         }
     }

panel-core/src/main/kotlin/com/redmadrobot/debug/core/ui/settings/DebugSettingsActivity.kt

@@ -3,21 +3,31 @@ package com.redmadrobot.debug.core.ui.settings
 import android.os.Bundle
 import androidx.activity.compose.setContent
 import androidx.appcompat.app.AppCompatActivity
-import androidx.compose.material.MaterialTheme
+import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
+import androidx.lifecycle.compose.collectAsStateWithLifecycle
 import androidx.navigation.compose.rememberNavController
+import com.redmadrobot.debug.core.DebugPanel
 import com.redmadrobot.debug.core.extension.getAllPlugins
 import com.redmadrobot.debug.core.internal.EditablePlugin
+import com.redmadrobot.debug.uikit.theme.DebugPanelTheme
 
 internal class DebugSettingsActivity : AppCompatActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
         setContent {
-            MaterialTheme {
+            val debugPanel = remember { DebugPanel.getInstance()!! }
+            val themeMode by debugPanel.observeDebugPanelTheme()
+                .collectAsStateWithLifecycle(initialValue = debugPanel.getSelectedTheme())
+
+            DebugPanelTheme(themeMode = themeMode) {
                 val navController = rememberNavController()
                 val pluginItems = remember { getSettingItems() }
-                DebugSettingsNavHost(navController = navController, pluginItems = pluginItems)
+                DebugSettingsNavHost(
+                    navController = navController,
+                    pluginItems = pluginItems,
+                )
             }
         }
     }

panel-ui-kit/build.gradle.kts

@@ -42,4 +42,5 @@ dependencies {
     implementation(androidx.compose.material3)
     implementation(androidx.compose.ui.tooling)
     implementation(androidx.compose.ui.tooling.preview)
+    implementation(androidx.core)
 }

panel-ui-kit/src/main/kotlin/com/redmadrobot/debug/uikit/components/ThemeSwitcher.kt

@@ -0,0 +1,65 @@
+package com.redmadrobot.debug.uikit.components
+
+import androidx.compose.foundation.layout.size
+import androidx.compose.material3.DropdownMenu
+import androidx.compose.material3.DropdownMenuItem
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.key
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.dp
+import com.redmadrobot.debug.uikit.theme.DebugPanelTheme
+import com.redmadrobot.debug.uikit.theme.model.ThemeMode
+
+@Composable
+public fun ThemeSwitcher(
+    currentMode: ThemeMode,
+    onModeSelect: (ThemeMode) -> Unit,
+    modifier: Modifier = Modifier,
+) {
+    var expanded by remember { mutableStateOf(false) }
+
+    IconButton(onClick = { expanded = true }, modifier = modifier) {
+        Icon(
+            painter = painterResource(id = ThemeMode.getIconRes(mode = currentMode)),
+            contentDescription = null,
+            tint = DebugPanelTheme.colors.content.secondary,
+            modifier = Modifier.size(size = 20.dp),
+        )
+        DropdownMenu(
+            expanded = expanded,
+            onDismissRequest = { expanded = false },
+        ) {
+            ThemeMode.entries.forEach { mode ->
+                key(mode.name) {
+                    DropdownMenuItem(
+                        title = stringResource(id = ThemeMode.getTitleRes(mode = mode)),
+                        onModeSelect = {
+                            onModeSelect.invoke(mode)
+                            expanded = false
+                        }
+                    )
+                }
+            }
+        }
+    }
+}
+
+@Composable
+private fun DropdownMenuItem(
+    title: String,
+    onModeSelect: () -> Unit
+) {
+    DropdownMenuItem(
+        text = { Text(text = title, style = DebugPanelTheme.typography.bodyMedium) },
+        onClick = { onModeSelect() },
+    )
+}

panel-ui-kit/src/main/kotlin/com/redmadrobot/debug/uikit/theme/BaseColors.kt

@@ -21,6 +21,7 @@ import androidx.compose.ui.graphics.luminance
 import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
+import com.redmadrobot.debug.uikit.theme.model.ThemeMode
 
 internal object BaseColors {
     // Purple
@@ -92,7 +93,7 @@ internal object BaseColors {
 @Composable
 @Preview(showBackground = true)
 private fun Preview() {
-    DebugPanelTheme {
+    DebugPanelTheme(themeMode = ThemeMode.Light) {
         FlowRow(
             modifier = Modifier
                 .fillMaxSize()

panel-ui-kit/src/main/kotlin/com/redmadrobot/debug/uikit/theme/DebugPanelColorPresets.kt

@@ -1,5 +1,8 @@
 package com.redmadrobot.debug.uikit.theme
 
+import androidx.compose.material3.ColorScheme
+import androidx.compose.material3.lightColorScheme
+
 internal val LightDebugPanelColors = DebugPanelColors()
 
 internal val DarkDebugPanelColors = DebugPanelColors(
@@ -44,3 +47,33 @@ internal val DarkDebugPanelColors = DebugPanelColors(
         remoteBackground = BaseColors.OrangeDark,
     ),
 )
+
+internal fun DebugPanelColors.toMaterialColorScheme(): ColorScheme = lightColorScheme(
+    primary = button.primary,
+    onPrimary = button.onPrimary,
+    primaryContainer = surface.tertiary,
+    onPrimaryContainer = content.primary,
+    secondary = content.secondary,
+    onSecondary = button.onPrimary,
+    secondaryContainer = button.secondary,
+    onSecondaryContainer = content.primary,
+    tertiary = content.tertiary,
+    onTertiary = button.onPrimary,
+    error = content.error,
+    onError = button.onError,
+    errorContainer = BaseColors.Error90,
+    onErrorContainer = BaseColors.Error20,
+    background = background.primary,
+    onBackground = content.primary,
+    surface = surface.primary,
+    onSurface = content.primary,
+    surfaceVariant = stroke.primary,
+    onSurfaceVariant = content.secondary,
+    outline = content.tertiary,
+    outlineVariant = stroke.secondary,
+    surfaceContainer = surface.secondary,
+    surfaceContainerHigh = surface.tertiary,
+    inverseSurface = content.primary,
+    inverseOnSurface = background.primary,
+    inversePrimary = content.accent,
+)

panel-ui-kit/src/main/kotlin/com/redmadrobot/debug/uikit/theme/DebugPanelDimensions.kt

@@ -0,0 +1,22 @@
+package com.redmadrobot.debug.uikit.theme
+
+import androidx.compose.ui.unit.Dp
+import androidx.compose.ui.unit.dp
+
+public object DebugPanelDimensions {
+    // Common
+    public val topBarHeight: Dp = 56.dp
+    public val tabRowHeight: Dp = 48.dp
+    public val bottomBarHeight: Dp = 56.dp
+    public val rowMinHeight: Dp = 48.dp
+
+    // Toggles
+    public val toggleWidth: Dp = 44.dp
+    public val toggleHeight: Dp = 24.dp
+    public val dotSize: Dp = 10.dp
+
+    // Icons
+    public val iconSizeSmall: Dp = 20.dp
+    public val iconSizeMedium: Dp = 24.dp
+    public val iconSizeLarge: Dp = 32.dp
+}

panel-ui-kit/src/main/kotlin/com/redmadrobot/debug/uikit/theme/DebugPanelShapes.kt

@@ -0,0 +1,11 @@
+package com.redmadrobot.debug.uikit.theme
+
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.ui.unit.dp
+
+public object DebugPanelShapes {
+    public val small: RoundedCornerShape = RoundedCornerShape(4.dp)
+    public val medium: RoundedCornerShape = RoundedCornerShape(8.dp)
+    public val large: RoundedCornerShape = RoundedCornerShape(20.dp)
+    public val dialog: RoundedCornerShape = RoundedCornerShape(28.dp)
+}