Add Widget and Live Wallpaper Module

app/androidApp/build.gradle.kts

@@ -23,7 +23,7 @@ android {
         buildConfig = true
     }
     composeOptions {
-        kotlinCompilerExtensionVersion = "1.4.7"
+        kotlinCompilerExtensionVersion = "1.5.1"
     }
     packaging {
         resources {
@@ -69,7 +69,7 @@ dependencies {
 
     // Hilt
     implementation("com.google.dagger:hilt-android:2.49")
-    kapt("com.google.dagger:hilt-compiler:2.44")
+    kapt("com.google.dagger:hilt-compiler:2.49")
     implementation("androidx.hilt:hilt-navigation-compose:1.2.0")
 
     // Firebase

app/build.gradle.kts

@@ -2,9 +2,9 @@ plugins {
     //trick: for the same plugin versions in all sub-modules
     id("com.android.application").version("8.6.0").apply(false)
     id("com.android.library").version("8.6.0").apply(false)
-    kotlin("android").version("1.8.21").apply(false)
-    kotlin("multiplatform").version("1.8.21").apply(false)
-    id("com.google.dagger.hilt.android").version("2.44").apply(false)
+    kotlin("android").version("1.9.0").apply(false)
+    kotlin("multiplatform").version("1.9.0").apply(false)
+    id("com.google.dagger.hilt.android").version("2.49").apply(false)
     id("com.google.gms.google-services").version("4.4.2").apply(false)
     id("com.google.firebase.crashlytics").version("3.0.2").apply(false)
 }

app/common/build.gradle.kts

@@ -17,6 +17,7 @@ android {
 
     buildFeatures {
         buildConfig = true
+        compose = true
     }
 
     buildTypes {
@@ -35,16 +36,21 @@ android {
     kotlinOptions {
         jvmTarget = "17"
     }
+
+    composeOptions {
+        kotlinCompilerExtensionVersion = "1.5.1"
+    }
 }
 
 dependencies {
+    implementation("androidx.compose.ui:ui:1.6.2")
     implementation("androidx.core:core-ktx:1.12.0")
     implementation("org.shredzone.commons:commons-suncalc:3.7")
     implementation("androidx.datastore:datastore-preferences:1.1.1")
 
     // Hilt
     implementation("com.google.dagger:hilt-android:2.49")
-    kapt("com.google.dagger:hilt-compiler:2.44")
+    kapt("com.google.dagger:hilt-compiler:2.49")
 
     // Testing
     testImplementation("junit:junit:4.13.2")

app/common/src/main/java/tt/co/jesses/moonlight/common/util/GradientUtil.kt

@@ -0,0 +1,54 @@
+package tt.co.jesses.moonlight.common.util
+
+import android.graphics.Canvas
+import android.graphics.LinearGradient
+import android.graphics.Paint
+import android.graphics.Shader
+import androidx.compose.ui.graphics.Color
+import androidx.compose.ui.graphics.toArgb
+import kotlin.math.cos
+import kotlin.math.pow
+import kotlin.math.sin
+import kotlin.math.sqrt
+
+object GradientUtil {
+    private val silverColor = Color(0xFFC0C0C0)
+    private val lsb = Color(0xFFCCE5FF)
+    private val hsl = Color.hsl(
+        hue = 0f,
+        saturation = 0f,
+        lightness = 0f,
+        alpha = 1f,
+    )
+
+    fun generateHSLColor(): List<Color> {
+        return listOf(hsl, silverColor, lsb)
+    }
+}
+
+fun drawAngledGradient(degrees: Float, canvas: Canvas, colors: List<Int>) {
+    val (width, height) = canvas.width.toFloat() to canvas.height.toFloat()
+    val (x, y) = width to height
+    val gamma = (degrees / 180f) * Math.PI
+    val yComponent = cos(gamma)
+    val xComponent = sin(gamma)
+    val r = sqrt(x.pow(2) + y.pow(2)) / 2f
+    val offset = android.graphics.PointF(x / 2f, y / 2f)
+    val offset2 = android.graphics.PointF(xComponent.toFloat() * r, yComponent.toFloat() * r)
+
+    val gradient = LinearGradient(
+        offset.x - offset2.x,
+        offset.y - offset2.y,
+        offset.x + offset2.x,
+        offset.y + offset2.y,
+        colors.toIntArray(),
+        null,
+        Shader.TileMode.CLAMP
+    )
+
+    val paint = Paint().apply {
+        shader = gradient
+    }
+
+    canvas.drawRect(0f, 0f, width, height, paint)
+}

app/gradle/wrapper/gradle-wrapper.properties

@@ -6,5 +6,3 @@ networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-
-

app/settings.gradle.kts

@@ -18,3 +18,4 @@ include(":androidApp")
 include(":shared")
 include(":common")
 include(":wearApp")
+include(":widget")

app/wearApp/build.gradle.kts

@@ -20,7 +20,7 @@ android {
         compose = true
     }
     composeOptions {
-        kotlinCompilerExtensionVersion = "1.4.7"
+        kotlinCompilerExtensionVersion = "1.5.1"
     }
 
     packaging {
@@ -65,7 +65,7 @@ dependencies {
 
     // Hilt
     implementation("com.google.dagger:hilt-android:2.49")
-    kapt("com.google.dagger:hilt-compiler:2.44")
+    kapt("com.google.dagger:hilt-compiler:2.49")
     implementation("androidx.hilt:hilt-navigation-compose:1.2.0")
 
     // Lifecycle

app/widget/build.gradle.kts

@@ -0,0 +1,51 @@
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
+plugins {
+    id("com.android.library")
+    kotlin("android")
+}
+
+android {
+    namespace = "tt.co.jesses.moonlight.widget"
+    compileSdk = 34
+
+    defaultConfig {
+        minSdk = 24
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+        consumerProguardFiles("consumer-rules.pro")
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+    kotlinOptions {
+        jvmTarget = "17"
+    }
+    buildFeatures {
+        compose = true
+    }
+    composeOptions {
+        kotlinCompilerExtensionVersion = "1.5.1"
+    }
+}
+
+dependencies {
+    implementation(project(":common"))
+    implementation("androidx.core:core-ktx:1.12.0")
+    implementation("androidx.glance:glance-appwidget:1.0.0")
+    implementation("androidx.compose.ui:ui:1.6.2")
+    implementation("androidx.compose.ui:ui-tooling-preview:1.6.2")
+    implementation("androidx.compose.material3:material3:1.2.1")
+    debugImplementation("androidx.compose.ui:ui-tooling:1.6.2")
+}

app/widget/src/main/AndroidManifest.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="tt.co.jesses.moonlight.widget">
+    <uses-feature android:name="android.software.live_wallpaper" />
+    <application>
+        <receiver
+            android:name=".MoonlightWidgetReceiver"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
+            </intent-filter>
+            <meta-data
+                android:name="android.appwidget.provider"
+                android:resource="@xml/moonlight_widget_info" />
+        </receiver>
+        <service
+            android:name=".MoonlightWallpaperService"
+            android:label="@string/wallpaper_name"
+            android:permission="android.permission.BIND_WALLPAPER"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.service.wallpaper.WallpaperService" />
+            </intent-filter>
+            <meta-data
+                android:name="android.service.wallpaper"
+                android:resource="@xml/moonlight_wallpaper_info" />
+        </service>
+    </application>
+</manifest>

app/widget/src/main/java/tt/co/jesses/moonlight/widget/MoonlightWallpaperService.kt

@@ -0,0 +1,65 @@
+package tt.co.jesses.moonlight.widget
+
+import android.service.wallpaper.WallpaperService
+import android.view.SurfaceHolder
+import android.graphics.Canvas
+import android.graphics.Color
+import android.os.Handler
+import android.os.Looper
+
+class MoonlightWallpaperService : WallpaperService() {
+
+    override fun onCreateEngine(): Engine {
+        return MoonlightWallpaperEngine()
+    }
+
+    private inner class MoonlightWallpaperEngine : Engine() {
+
+        private val handler = Handler(Looper.getMainLooper())
+        private var isVisible = false
+
+        private val drawRunner = Runnable { draw() }
+
+        override fun onSurfaceCreated(holder: SurfaceHolder) {
+            super.onSurfaceCreated(holder)
+            handler.post(drawRunner)
+        }
+
+        override fun onVisibilityChanged(visible: Boolean) {
+            super.onVisibilityChanged(visible)
+            isVisible = visible
+            if (visible) {
+                handler.post(drawRunner)
+            } else {
+                handler.removeCallbacks(drawRunner)
+            }
+        }
+
+        override fun onSurfaceDestroyed(holder: SurfaceHolder) {
+            super.onSurfaceDestroyed(holder)
+            isVisible = false
+            handler.removeCallbacks(drawRunner)
+        }
+
+        private fun draw() {
+            val holder = surfaceHolder
+            var canvas: Canvas? = null
+            try {
+                canvas = holder.lockCanvas()
+                if (canvas != null) {
+                    // For now, just draw a color
+                    canvas.drawColor(Color.BLACK)
+                }
+            } finally {
+                if (canvas != null) {
+                    holder.unlockCanvasAndPost(canvas)
+                }
+            }
+
+            handler.removeCallbacks(drawRunner)
+            if (isVisible) {
+                handler.postDelayed(drawRunner, 1000L / 60L) // 60fps
+            }
+        }
+    }
+}

app/widget/src/main/java/tt/co/jesses/moonlight/widget/MoonlightWidget.kt

@@ -0,0 +1,51 @@
+package tt.co.jesses.moonlight.widget
+
+import android.content.Context
+import android.graphics.Bitmap
+import android.graphics.Canvas
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.graphics.toArgb
+import androidx.glance.BitmapImageProvider
+import androidx.glance.GlanceId
+import androidx.glance.Image
+import androidx.glance.appwidget.GlanceAppWidget
+import androidx.glance.appwidget.provideContent
+import androidx.glance.layout.Alignment
+import androidx.glance.layout.Box
+import androidx.glance.layout.fillMaxSize
+import androidx.glance.text.Text
+import tt.co.jesses.moonlight.common.util.GradientUtil
+import tt.co.jesses.moonlight.common.util.drawAngledGradient
+
+class MoonlightWidget : GlanceAppWidget() {
+    override suspend fun provideGlance(context: Context, id: GlanceId) {
+        provideContent {
+            MoonlightWidgetContent(context)
+        }
+    }
+
+    @Composable
+    fun MoonlightWidgetContent(context: Context) {
+        val width = 256
+        val height = 256
+        val bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888)
+        val canvas = Canvas(bitmap)
+
+        drawAngledGradient(
+            degrees = 270f,
+            canvas = canvas,
+            colors = GradientUtil.generateHSLColor().map { it.toArgb() }
+        )
+
+        Box(
+            modifier = androidx.glance.GlanceModifier.fillMaxSize(),
+            contentAlignment = Alignment.Center
+        ) {
+            Image(
+                provider = BitmapImageProvider(bitmap),
+                contentDescription = "Moonlight gradient background",
+            )
+            Text("Moonlight Widget")
+        }
+    }
+}

app/widget/src/main/java/tt/co/jesses/moonlight/widget/MoonlightWidgetReceiver.kt

@@ -0,0 +1,8 @@
+package tt.co.jesses.moonlight.widget
+
+import androidx.glance.appwidget.GlanceAppWidget
+import androidx.glance.appwidget.GlanceAppWidgetReceiver
+
+class MoonlightWidgetReceiver : GlanceAppWidgetReceiver() {
+    override val glanceAppWidget: GlanceAppWidget = MoonlightWidget()
+}

app/widget/src/main/res/values/strings.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <string name="wallpaper_name">moonlight</string>
+</resources>

app/widget/src/main/res/xml/moonlight_wallpaper_info.xml

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<wallpaper xmlns:android="http://schemas.android.com/apk/res/android"
+    android:description="@string/wallpaper_name"
+    android:thumbnail="@android:drawable/ic_menu_gallery" />

app/widget/src/main/res/xml/moonlight_widget_info.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
+    android:minWidth="40dp"
+    android:minHeight="40dp"
+    android:updatePeriodMillis="86400000"
+    android:initialLayout="@layout/glance_default_loading_layout"
+    android:resizeMode="horizontal|vertical"
+    android:widgetCategory="home_screen">
+</appwidget-provider>