PM-26594: Move the QrCodeAnalyzer to the UI module (#5980)

authenticator/build.gradle.kts

@@ -224,7 +224,6 @@ dependencies {
     implementation(libs.kotlinx.collections.immutable)
     implementation(libs.kotlinx.coroutines.android)
     implementation(libs.kotlinx.serialization)
-    implementation(libs.zxing.zxing.core)
 
     // For now we are restricted to running Compose tests for debug builds only
     debugImplementation(libs.androidx.compose.ui.test.manifest)

authenticator/src/main/kotlin/com/bitwarden/authenticator/ui/authenticator/feature/qrcodescan/QrCodeScanScreen.kt

@@ -50,8 +50,6 @@ import androidx.compose.ui.viewinterop.AndroidView
 import androidx.hilt.lifecycle.viewmodel.compose.hiltViewModel
 import androidx.lifecycle.compose.LocalLifecycleOwner
 import androidx.lifecycle.compose.collectAsStateWithLifecycle
-import com.bitwarden.authenticator.ui.authenticator.feature.qrcodescan.util.QrCodeAnalyzer
-import com.bitwarden.authenticator.ui.authenticator.feature.qrcodescan.util.QrCodeAnalyzerImpl
 import com.bitwarden.authenticator.ui.platform.util.isPortrait
 import com.bitwarden.ui.platform.base.util.EventsEffect
 import com.bitwarden.ui.platform.base.util.annotatedStringResource
@@ -60,6 +58,8 @@ import com.bitwarden.ui.platform.base.util.standardHorizontalMargin
 import com.bitwarden.ui.platform.components.appbar.BitwardenTopAppBar
 import com.bitwarden.ui.platform.components.dialog.BitwardenBasicDialog
 import com.bitwarden.ui.platform.components.scaffold.BitwardenScaffold
+import com.bitwarden.ui.platform.feature.qrcodescan.util.QrCodeAnalyzer
+import com.bitwarden.ui.platform.feature.qrcodescan.util.QrCodeAnalyzerImpl
 import com.bitwarden.ui.platform.resource.BitwardenDrawable
 import com.bitwarden.ui.platform.resource.BitwardenString
 import com.bitwarden.ui.platform.theme.BitwardenTheme

authenticator/src/main/kotlin/com/bitwarden/authenticator/ui/authenticator/feature/qrcodescan/util/QrCodeAnalyzer.kt

@@ -1,16 +0,0 @@
-package com.bitwarden.authenticator.ui.authenticator.feature.qrcodescan.util
-
-import androidx.camera.core.ImageAnalysis
-import androidx.compose.runtime.Stable
-
-/**
- * An interface that is used to help scan QR codes.
- */
-@Stable
-interface QrCodeAnalyzer : ImageAnalysis.Analyzer {
-
-    /**
-     * The method that is called once the code is scanned.
-     */
-    var onQrCodeScanned: (String) -> Unit
-}

authenticator/src/main/kotlin/com/bitwarden/authenticator/ui/authenticator/feature/qrcodescan/util/QrCodeAnalyzerImpl.kt

@@ -1,67 +0,0 @@
-package com.bitwarden.authenticator.ui.authenticator.feature.qrcodescan.util
-
-import androidx.camera.core.ImageProxy
-import com.google.zxing.BarcodeFormat
-import com.google.zxing.BinaryBitmap
-import com.google.zxing.DecodeHintType
-import com.google.zxing.MultiFormatReader
-import com.google.zxing.NotFoundException
-import com.google.zxing.PlanarYUVLuminanceSource
-import com.google.zxing.common.HybridBinarizer
-import java.nio.ByteBuffer
-
-/**
- * A class setup to handle image analysis so that we can use the Zxing library
- * to scan QR codes and convert them to a string.
- */
-class QrCodeAnalyzerImpl : QrCodeAnalyzer {
-
-    /**
-     * This will ensure the result is only sent once as multiple images with a valid
-     * QR code can be sent for analysis.
-     */
-    private var qrCodeRead = false
-
-    override lateinit var onQrCodeScanned: (String) -> Unit
-
-    override fun analyze(image: ImageProxy) {
-        if (qrCodeRead) {
-            return
-        }
-
-        val source = PlanarYUVLuminanceSource(
-            image.planes[0].buffer.toByteArray(),
-            image.planes[0].rowStride,
-            image.height,
-            0,
-            0,
-            image.width,
-            image.height,
-            false,
-        )
-
-        val binaryBitmap = BinaryBitmap(HybridBinarizer(source))
-        try {
-            val result = MultiFormatReader().decode(
-                /* image = */ binaryBitmap,
-                /* hints = */
-                mapOf(
-                    DecodeHintType.POSSIBLE_FORMATS to arrayListOf(BarcodeFormat.QR_CODE),
-                    DecodeHintType.ALSO_INVERTED to true,
-                ),
-            )
-
-            qrCodeRead = true
-            onQrCodeScanned(result.text)
-        } catch (ignored: NotFoundException) {
-        } finally {
-            image.close()
-        }
-    }
-}
-
-/**
- * This function helps us prepare the byte buffer to be read.
- */
-private fun ByteBuffer.toByteArray(): ByteArray =
-    ByteArray(rewind().remaining()).also { get(it) }

authenticator/src/test/kotlin/com/bitwarden/authenticator/ui/authenticator/feature/qrcodescan/FakeQrCodeAnalyzer.kt

@@ -1,22 +0,0 @@
-package com.bitwarden.authenticator.ui.authenticator.feature.qrcodescan
-
-import androidx.camera.core.ImageProxy
-import com.bitwarden.authenticator.ui.authenticator.feature.qrcodescan.util.QrCodeAnalyzer
-
-/**
- * A helper class that helps test scan outcomes.
- */
-class FakeQrCodeAnalyzer : QrCodeAnalyzer {
-
-    override lateinit var onQrCodeScanned: (String) -> Unit
-
-    /**
-     * The result of the scan that will be sent to the ViewModel (or `null` to indicate a
-     * scanning error.
-     */
-    var scanResult: String? = null
-
-    override fun analyze(image: ImageProxy) {
-        scanResult?.let { onQrCodeScanned.invoke(it) }
-    }
-}

authenticator/src/test/kotlin/com/bitwarden/authenticator/ui/authenticator/feature/qrcodescan/QrCodeScanScreenTest.kt

@@ -8,6 +8,7 @@ import androidx.compose.ui.test.onNodeWithText
 import androidx.compose.ui.test.performClick
 import com.bitwarden.authenticator.ui.platform.base.AuthenticatorComposeTest
 import com.bitwarden.core.data.repository.util.bufferedMutableSharedFlow
+import com.bitwarden.ui.platform.feature.qrcodescan.util.FakeQrCodeAnalyzer
 import io.mockk.every
 import io.mockk.just
 import io.mockk.mockk