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‎.github/workflows/update_dependencies.yml‎

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name: Update Dependencies
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on:
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workflow_dispatch:
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schedule:
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- cron: "0 4 * * *"
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jobs:
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build:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout to push branch
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uses: actions/checkout@v4
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with:
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ref: ${{ github.ref }}
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fetch-depth: 0
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- name: Set up JDK 17
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uses: actions/setup-java@v3
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with:
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java-version: 17
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distribution: 'corretto'
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- name: Update dependencies
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run: |
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export GRADLE_USER_HOME=$(pwd)/.gradle
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chmod +x ./gradlew
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./gradlew versionCatalogUpdate
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- name: Create report env variable
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run: |
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{
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echo 'REPORT<<EOF'
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cat build/dependencyUpdates/report.txt | tail -n +6
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echo EOF
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} >> "$GITHUB_ENV"
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- name: Create pull request
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uses: peter-evans/create-pull-request@v4
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with:
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token: ${{ secrets.PAT }}
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commit-message: update dependencies
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committer: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
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author: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
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signoff: false
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branch: github-actions-bot/update-deps
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delete-branch: true
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title: 'Update Dependencies'
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body: ${{ env.REPORT }}
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reviewers: ${{ github.actor }}

‎.gitignore‎

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.gradle
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build/
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!gradle/wrapper/gradle-wrapper.jar
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!**/src/main/**/build/
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!**/src/test/**/build/
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### IntelliJ IDEA ###
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.idea/modules.xml
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.idea/jarRepositories.xml
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.idea/compiler.xml
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.idea/libraries/
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*.iws
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*.iml
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*.ipr
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out/
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!**/src/main/**/out/
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!**/src/test/**/out/
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### Eclipse ###
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.apt_generated
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.classpath
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.factorypath
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.project
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.settings
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.springBeans
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.sts4-cache
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bin/
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!**/src/main/**/bin/
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!**/src/test/**/bin/
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### NetBeans ###
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/nbproject/private/
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/nbbuild/
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/dist/
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/nbdist/
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/.nb-gradle/
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### VS Code ###
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.vscode/
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### Mac OS ###
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.DS_Store
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local.properties

‎build.gradle.kts‎

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import com.github.benmanes.gradle.versions.updates.DependencyUpdatesTask
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plugins {
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alias(libs.plugins.kotlin.multiplatform) apply false
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alias(libs.plugins.android.library) apply false
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alias(libs.plugins.compose.multiplatform) apply false
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alias(libs.plugins.gradle.versions) apply true
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alias(libs.plugins.version.catalog.update) apply true
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}
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versionCatalogUpdate {
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sortByKey = true
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}
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fun isStable(version: String): Boolean {
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val stableKeyword = listOf("RELEASE", "FINAL", "GA").any { version.uppercase().contains(it) }
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val regex = "^[0-9,.v-]+(-r)?$".toRegex()
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return stableKeyword || regex.matches(version)
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}
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tasks.withType<DependencyUpdatesTask> {
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rejectVersionIf {
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!isStable(candidate.version)
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}
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}

‎camera-qr/build.gradle.kts‎

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plugins {
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alias(libs.plugins.kotlin.multiplatform) apply true
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alias(libs.plugins.android.library) apply true
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alias(libs.plugins.compose.multiplatform) apply true
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id("maven-publish") apply true
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}
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repositories {
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mavenCentral()
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google()
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maven("https://maven.pkg.jetbrains.space/public/p/compose/dev")
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}
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group = "dev.procyk.compose"
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version = libs.versions.compose.extensions.get()
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kotlin {
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jvm("desktop")
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androidTarget {
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publishLibraryVariants("release")
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}
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ios()
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iosSimulatorArm64()
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sourceSets {
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val commonMain by getting {
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dependencies {
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implementation(compose.runtime)
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implementation(compose.foundation)
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}
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}
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val androidMain by getting {
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dependencies {
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implementation(libs.androidx.camera)
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implementation(libs.androidx.cameraLifecycle)
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implementation(libs.androidx.cameraPreview)
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implementation(libs.mlkit.barcodeScanning)
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implementation(libs.accompanist.permissions)
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}
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}
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val iosX64Main by getting
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val iosArm64Main by getting
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val iosSimulatorArm64Main by getting
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val iosMain by getting {
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dependsOn(commonMain)
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iosX64Main.dependsOn(this)
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iosArm64Main.dependsOn(this)
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iosSimulatorArm64Main.dependsOn(this)
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}
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val desktopMain by getting {
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dependencies {
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implementation(libs.webcam.capture)
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implementation(libs.webcam.capture.driver.native)
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implementation(libs.zxing.javase)
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}
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}
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}
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}
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android {
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compileSdk = libs.versions.android.compileSdk.get().toInt()
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namespace = "dev.procyk.compose"
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defaultConfig {
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minSdk = libs.versions.android.minSdk.get().toInt()
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}
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compileOptions {
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sourceCompatibility = JavaVersion.VERSION_17
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targetCompatibility = JavaVersion.VERSION_17
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}
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kotlin {
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jvmToolchain(17)
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}
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}
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publishing {
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repositories {
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mavenLocal()
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}
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}

‎camera-qr/src/androidMain/kotlin/dev/procyk/compose/camera/qr/QRCodeScanner.kt‎

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package dev.procyk.compose.camera.qr
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import android.media.Image
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import android.widget.LinearLayout.LayoutParams
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import android.widget.ListPopupWindow
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import androidx.camera.core.ExperimentalGetImage
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import androidx.camera.core.ImageAnalysis
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import androidx.camera.core.ImageProxy
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import androidx.camera.view.LifecycleCameraController
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import androidx.camera.view.PreviewView
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import androidx.compose.foundation.layout.fillMaxSize
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.DisposableEffect
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import androidx.compose.runtime.remember
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.graphics.Color
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import androidx.compose.ui.graphics.toArgb
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import androidx.compose.ui.platform.LocalContext
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import androidx.compose.ui.platform.LocalLifecycleOwner
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import androidx.compose.ui.viewinterop.AndroidView
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import com.google.accompanist.permissions.ExperimentalPermissionsApi
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import com.google.accompanist.permissions.PermissionStatus
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import com.google.accompanist.permissions.rememberPermissionState
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import com.google.mlkit.vision.barcode.BarcodeScanner
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import com.google.mlkit.vision.barcode.BarcodeScannerOptions
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import com.google.mlkit.vision.barcode.BarcodeScanning
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import com.google.mlkit.vision.barcode.common.Barcode
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import com.google.mlkit.vision.common.InputImage
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import java.util.concurrent.ExecutorService
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import java.util.concurrent.Executors
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@Composable
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actual fun QRCodeScanner(
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onResult: (QRResult) -> Boolean,
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onIsLoadingChange: (Boolean) -> Unit,
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backgroundColor: Color,
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contentDescription: String?,
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missingCameraContent: @Composable () -> Unit,
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) {
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val localContext = LocalContext.current
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val lifecycleOwner = LocalLifecycleOwner.current
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val analysisExecutor = rememberExecutor()
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val cameraController = remember { LifecycleCameraController(localContext) }
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AndroidView(
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modifier = Modifier.fillMaxSize(),
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factory = { context ->
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PreviewView(context).apply {
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setBackgroundColor(backgroundColor.toArgb())
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layoutParams = LayoutParams(ListPopupWindow.MATCH_PARENT, ListPopupWindow.MATCH_PARENT)
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scaleType = PreviewView.ScaleType.FILL_START
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implementationMode = PreviewView.ImplementationMode.COMPATIBLE
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controller = cameraController
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var handleNext = true
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cameraController.setImageAnalysisAnalyzer(
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analysisExecutor,
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QRCodeAnalyzer(
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handle = { handleNext = handleNext && onResult(it) },
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onPassCompleted = onIsLoadingChange,
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)
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)
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cameraController.bindToLifecycle(lifecycleOwner)
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}
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},
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onRelease = {
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cameraController.unbind()
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analysisExecutor.shutdown()
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}
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)
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}
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@OptIn(ExperimentalPermissionsApi::class)
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@Composable
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actual fun rememberCameraPermissionState(): CameraPermissionState {
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val cameraPermissionState = rememberPermissionState(
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android.Manifest.permission.CAMERA
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)
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return remember {
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object : CameraPermissionState {
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override val isAvailable: Boolean = true
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override val permission: CameraPermission
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get() = when (cameraPermissionState.status) {
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PermissionStatus.Granted -> CameraPermission.Granted
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is PermissionStatus.Denied -> CameraPermission.Denied
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}
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override fun launchRequest() = cameraPermissionState.launchPermissionRequest()
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}
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}
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}
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@Composable
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private fun rememberExecutor(): ExecutorService {
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val executor = remember { Executors.newSingleThreadExecutor() }
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DisposableEffect(Unit) {
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onDispose {
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executor.shutdown()
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}
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}
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return executor
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}
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internal class QRCodeAnalyzer(
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private val handle: (QRResult) -> Unit,
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private val onPassCompleted: (failureOccurred: Boolean) -> Unit,
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) : ImageAnalysis.Analyzer {
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private val barcodeScanner: BarcodeScanner? by lazy {
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try {
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BarcodeScanning.getClient(
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BarcodeScannerOptions.Builder()
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.setBarcodeFormats(Barcode.FORMAT_QR_CODE)
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.build()
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)
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} catch (_: Exception) {
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handleSynchronized(QRResult.QRError)
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null
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}
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}
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@Volatile
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private var failureTimestamp: Long = NO_FAILURE_FLAG
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@ExperimentalGetImage
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override fun analyze(imageProxy: ImageProxy) {
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val image = imageProxy.image ?: return
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if (failureTimestamp.isFailure && System.currentTimeMillis() - failureTimestamp < FAILURE_THROTTLE_MILLIS) {
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return imageProxy.close()
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}
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failureTimestamp = NO_FAILURE_FLAG
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val scanner = barcodeScanner ?: return
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val rotationDegrees = imageProxy.imageInfo.rotationDegrees
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scanner
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.process(image.toInputImage(rotationDegrees))
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.addOnSuccessListener { onNonEmptySuccess(it) }
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.addOnFailureListener {
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failureTimestamp = System.currentTimeMillis()
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handleSynchronized(QRResult.QRError)
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}
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.addOnCompleteListener {
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onPassCompleted(failureTimestamp.isFailure)
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imageProxy.close()
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}
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}
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@Synchronized
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private fun handleSynchronized(result: QRResult) {
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handle(result)
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}
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private fun onNonEmptySuccess(codes: List<Barcode?>?) {
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val qrResult = QRResult.QRSuccess(codes) { it?.rawValue } ?: return
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handleSynchronized(qrResult)
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}
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}
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private const val FAILURE_THROTTLE_MILLIS: Long = 1_000L
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private const val NO_FAILURE_FLAG: Long = Long.MIN_VALUE
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private inline val Long.isFailure: Boolean get() = this != NO_FAILURE_FLAG
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@ExperimentalGetImage
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private fun Image.toInputImage(rotationDegrees: Int): InputImage =
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InputImage.fromMediaImage(this, rotationDegrees)

‎camera-qr/src/commonMain/kotlin/dev/procyk/compose/camera/ComposeUtil.kt‎

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package dev.procyk.compose.camera
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.LaunchedEffect
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import kotlinx.coroutines.CoroutineScope
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@Composable
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internal fun OnceLaunchedEffect(block: suspend CoroutineScope.() -> Unit) {
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LaunchedEffect(Unit, block)
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}

‎camera-qr/src/commonMain/kotlin/dev/procyk/compose/camera/TypeUtil.kt‎

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package dev.procyk.compose.camera
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internal inline fun <T, U> runIfNonNull(t: T?, crossinline action: (T) -> U): U? =
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if (t != null) action(t) else null

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