Launch Link Eagerly with new ConfirmationDefinition

paymentsheet/res/values/themes.xml

@@ -44,4 +44,10 @@
         <item name="android:windowBackground">@color/stripe_link_window_background</item>
         <item name="windowNoTitle">true</item>
     </style>
+
+    <style name="StripeLinkTranslucentTheme" parent="@android:style/Theme.Translucent">
+        <item name="android:windowContentOverlay">@null</item>
+        <item name="android:windowNoTitle">true</item>
+        <item name="windowNoTitle">true</item>
+    </style>
 </resources>

paymentsheet/src/main/AndroidManifest.xml

@@ -53,6 +53,15 @@
             android:autoRemoveFromRecents="true"
             android:configChanges="orientation|keyboard|keyboardHidden|screenLayout|screenSize|smallestScreenSize" />
 
+        <activity
+            android:name="com.stripe.android.link.express.LinkExpressActivity"
+            android:theme="@style/StripeLinkTranslucentTheme"
+            android:exported="false"
+            android:label="@string/stripe_link"
+            android:windowSoftInputMode="adjustResize"
+            android:autoRemoveFromRecents="true"
+            android:configChanges="orientation|keyboard|keyboardHidden|screenLayout|screenSize|smallestScreenSize" />
+
         <activity
             android:name="com.stripe.android.link.LinkForegroundActivity"
             android:autoRemoveFromRecents="true"

paymentsheet/src/main/java/com/stripe/android/link/LinkActivityContract.kt

@@ -4,6 +4,7 @@ import android.content.Context
 import android.content.Intent
 import androidx.activity.result.contract.ActivityResultContract
 import com.stripe.android.core.utils.FeatureFlags
+import com.stripe.android.link.model.LinkAccount
 import javax.inject.Inject
 
 /**
@@ -34,7 +35,8 @@ internal class LinkActivityContract @Inject internal constructor(
     }
 
     data class Args internal constructor(
-        internal val configuration: LinkConfiguration
+        internal val configuration: LinkConfiguration,
+        internal val linkAccount: LinkAccount?
     )
 
     data class Result(

paymentsheet/src/main/java/com/stripe/android/link/LinkActivityViewModel.kt

@@ -127,6 +127,7 @@ internal class LinkActivityViewModel @Inject constructor(
                     .stripeAccountIdProvider { args.stripeAccountId }
                     .savedStateHandle(handle)
                     .context(app)
+                    .linkAccount(args.linkAccount)
                     .build()
                     .viewModel
             }

paymentsheet/src/main/java/com/stripe/android/link/LinkConfigurationCoordinator.kt

@@ -2,6 +2,7 @@ package com.stripe.android.link
 
 import com.stripe.android.link.injection.LinkComponent
 import com.stripe.android.link.model.AccountStatus
+import com.stripe.android.link.model.LinkAccount
 import com.stripe.android.link.ui.inline.UserInput
 import com.stripe.android.model.ConsumerSession
 import com.stripe.android.model.PaymentMethodCreateParams
@@ -22,6 +23,8 @@ internal interface LinkConfigurationCoordinator {
 
     fun getAccountStatusFlow(configuration: LinkConfiguration): Flow<AccountStatus>
 
+    fun getLinkAccountFlow(configuration: LinkConfiguration): StateFlow<LinkAccount?>
+
     suspend fun signInWithUserInput(
         configuration: LinkConfiguration,
         userInput: UserInput
@@ -62,6 +65,10 @@ internal class RealLinkConfigurationCoordinator @Inject internal constructor(
     override fun getAccountStatusFlow(configuration: LinkConfiguration): Flow<AccountStatus> =
         getLinkPaymentLauncherComponent(configuration).linkAccountManager.accountStatus
 
+    override fun getLinkAccountFlow(configuration: LinkConfiguration): StateFlow<LinkAccount?> {
+        return getLinkPaymentLauncherComponent(configuration).linkAccountManager.linkAccount
+    }
+
     /**
      * Trigger Link sign in with the input collected from the user inline in PaymentSheet, whether
      * it's a new or existing account.

paymentsheet/src/main/java/com/stripe/android/link/LinkPaymentLauncher.kt

@@ -6,6 +6,7 @@ import androidx.activity.result.ActivityResultRegistry
 import com.stripe.android.link.LinkActivityResult.PaymentMethodObtained
 import com.stripe.android.link.account.LinkStore
 import com.stripe.android.link.injection.LinkAnalyticsComponent
+import com.stripe.android.link.model.LinkAccount
 import javax.inject.Inject
 import javax.inject.Singleton
 
@@ -72,9 +73,11 @@ internal class LinkPaymentLauncher @Inject internal constructor(
      */
     fun present(
         configuration: LinkConfiguration,
+        linkAccount: LinkAccount?
     ) {
         val args = LinkActivityContract.Args(
-            configuration,
+            configuration = configuration,
+            linkAccount = linkAccount
         )
         linkActivityResultLauncher?.launch(args)
         analyticsHelper.onLinkLaunched()

paymentsheet/src/main/java/com/stripe/android/link/NativeLinkActivityContract.kt

@@ -20,7 +20,8 @@ internal class NativeLinkActivityContract @Inject constructor() :
             args = NativeLinkArgs(
                 configuration = input.configuration,
                 stripeAccountId = paymentConfiguration.stripeAccountId,
-                publishableKey = paymentConfiguration.publishableKey
+                publishableKey = paymentConfiguration.publishableKey,
+                linkAccount = input.linkAccount
             )
         )
     }

paymentsheet/src/main/java/com/stripe/android/link/NativeLinkArgs.kt

@@ -1,11 +1,13 @@
 package com.stripe.android.link
 
 import android.os.Parcelable
+import com.stripe.android.link.model.LinkAccount
 import kotlinx.parcelize.Parcelize
 
 @Parcelize
 internal data class NativeLinkArgs(
     val configuration: LinkConfiguration,
     val publishableKey: String,
-    val stripeAccountId: String?
+    val stripeAccountId: String?,
+    val linkAccount: LinkAccount?
 ) : Parcelable

paymentsheet/src/main/java/com/stripe/android/link/account/DefaultLinkAccountManager.kt

@@ -207,6 +207,10 @@ internal class DefaultLinkAccountManager @Inject constructor(
         return newAccount
     }
 
+    internal fun setAccount(linkAccount: LinkAccount?) {
+        _linkAccount.value = linkAccount
+    }
+
     override fun setLinkAccountFromLookupResult(
         lookup: ConsumerSessionLookup,
         startSession: Boolean,

paymentsheet/src/main/java/com/stripe/android/link/express/LinkExpressActivity.kt

@@ -0,0 +1,92 @@
+package com.stripe.android.link.express
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import androidx.activity.ComponentActivity
+import androidx.activity.compose.setContent
+import androidx.annotation.VisibleForTesting
+import androidx.compose.ui.window.Dialog
+import androidx.core.os.bundleOf
+import androidx.lifecycle.SavedStateHandle
+import androidx.lifecycle.ViewModelProvider
+import androidx.navigation.NavHostController
+import com.stripe.android.core.Logger
+import com.stripe.android.link.NoArgsException
+import com.stripe.android.link.theme.DefaultLinkTheme
+import com.stripe.android.link.ui.verification.VerificationScreen
+import com.stripe.android.link.ui.verification.VerificationViewModel
+import com.stripe.android.paymentsheet.BuildConfig
+
+class LinkExpressActivity : ComponentActivity() {
+    internal var viewModel: VerificationViewModel? = null
+
+    @VisibleForTesting
+    internal lateinit var navController: NavHostController
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        try {
+            viewModel = ViewModelProvider(
+                owner = this,
+                factory = VerificationViewModel.factory(
+                    onVerificationSucceeded = { linkAccount ->
+                        dismissWithResult(LinkExpressResult.Authenticated(linkAccount))
+                    },
+                    onChangeEmailClicked = {},
+                    onDismissClicked = {
+                        dismissWithResult(LinkExpressResult.Canceled)
+                    }
+                )
+            )[VerificationViewModel::class.java]
+        } catch (e: NoArgsException) {
+            Logger.getInstance(BuildConfig.DEBUG).error("Failed to create VerificationViewModel", e)
+            setResult(Activity.RESULT_CANCELED)
+            finish()
+        }
+
+        val vm = viewModel ?: return
+
+        setContent {
+            Dialog(
+                onDismissRequest = {
+                    dismissWithResult(LinkExpressResult.Canceled)
+                }
+            ) {
+                DefaultLinkTheme {
+                    VerificationScreen(vm)
+                }
+            }
+        }
+    }
+
+    private fun dismissWithResult(result: LinkExpressResult) {
+        val bundle = bundleOf(
+            LinkExpressContract.EXTRA_RESULT to result
+        )
+        [email protected](
+            RESULT_COMPLETE,
+            intent.putExtras(bundle)
+        )
+        [email protected]()
+    }
+
+    companion object {
+        internal const val EXTRA_ARGS = "link_express_args"
+        internal const val RESULT_COMPLETE = 57576
+
+        internal fun createIntent(
+            context: Context,
+            args: LinkExpressArgs
+        ): Intent {
+            return Intent(context, LinkExpressActivity::class.java)
+                .putExtra(EXTRA_ARGS, args)
+        }
+
+        internal fun getArgs(savedStateHandle: SavedStateHandle): LinkExpressArgs? {
+            return savedStateHandle.get<LinkExpressArgs>(EXTRA_ARGS)
+        }
+    }
+}

paymentsheet/src/main/java/com/stripe/android/link/express/LinkExpressArgs.kt

@@ -0,0 +1,14 @@
+package com.stripe.android.link.express
+
+import android.os.Parcelable
+import com.stripe.android.link.LinkConfiguration
+import com.stripe.android.link.model.LinkAccount
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+internal data class LinkExpressArgs(
+    val configuration: LinkConfiguration,
+    val publishableKey: String,
+    val stripeAccountId: String?,
+    val linkAccount: LinkAccount?
+) : Parcelable

paymentsheet/src/main/java/com/stripe/android/link/express/LinkExpressContract.kt

@@ -0,0 +1,53 @@
+package com.stripe.android.link.express
+
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import androidx.activity.result.contract.ActivityResultContract
+import androidx.core.os.BundleCompat
+import com.stripe.android.PaymentConfiguration
+import com.stripe.android.link.LinkConfiguration
+import com.stripe.android.link.model.LinkAccount
+import javax.inject.Inject
+
+internal class LinkExpressContract @Inject constructor() :
+    ActivityResultContract<LinkExpressContract.Args, LinkExpressResult>() {
+
+    override fun createIntent(context: Context, input: Args): Intent {
+        val paymentConfiguration = PaymentConfiguration.getInstance(context)
+        return LinkExpressActivity.createIntent(
+            context = context,
+            args = LinkExpressArgs(
+                configuration = input.configuration,
+                stripeAccountId = paymentConfiguration.stripeAccountId,
+                publishableKey = paymentConfiguration.publishableKey,
+                linkAccount = input.linkAccount
+            )
+        )
+    }
+
+    override fun parseResult(resultCode: Int, intent: Intent?): LinkExpressResult {
+        return when (resultCode) {
+            LinkExpressActivity.RESULT_COMPLETE -> {
+                val result = intent?.extras?.let {
+                    BundleCompat.getParcelable(it, EXTRA_RESULT, LinkExpressResult::class.java)
+                }
+                return result ?: LinkExpressResult.Canceled
+            }
+            Activity.RESULT_CANCELED -> {
+                LinkExpressResult.Canceled
+            }
+            else -> LinkExpressResult.Canceled
+        }
+    }
+
+    data class Args(
+        val configuration: LinkConfiguration,
+        val linkAccount: LinkAccount
+    )
+
+    companion object {
+        internal const val EXTRA_RESULT =
+            "com.stripe.android.link.express.LinkExpressContract.extra_result"
+    }
+}

paymentsheet/src/main/java/com/stripe/android/link/express/LinkExpressLauncher.kt

@@ -0,0 +1,68 @@
+package com.stripe.android.link.express
+
+import androidx.activity.result.ActivityResultCaller
+import androidx.activity.result.ActivityResultLauncher
+import androidx.activity.result.ActivityResultRegistry
+import com.stripe.android.link.LinkConfiguration
+import com.stripe.android.link.model.LinkAccount
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+internal class LinkExpressLauncher @Inject constructor(
+    private val linkExpressContract: LinkExpressContract
+) {
+    private var linkActivityResultLauncher:
+        ActivityResultLauncher<LinkExpressContract.Args>? = null
+
+    fun register(
+        activityResultRegistry: ActivityResultRegistry,
+        callback: (LinkExpressResult) -> Unit,
+    ) {
+        linkActivityResultLauncher = activityResultRegistry.register(
+            "LinkPaymentLauncher",
+            linkExpressContract,
+        ) { linkExpressResult ->
+            handleActivityResult(linkExpressResult, callback)
+        }
+    }
+
+    fun register(
+        activityResultCaller: ActivityResultCaller,
+        callback: (LinkExpressResult) -> Unit,
+    ) {
+        linkActivityResultLauncher = activityResultCaller.registerForActivityResult(
+            linkExpressContract
+        ) { linkExpressContract ->
+            handleActivityResult(linkExpressContract, callback)
+        }
+    }
+
+    private fun handleActivityResult(
+        linkExpressResult: LinkExpressResult,
+        nextStep: (LinkExpressResult) -> Unit
+    ) {
+        nextStep(linkExpressResult)
+    }
+
+    fun unregister() {
+        linkActivityResultLauncher?.unregister()
+        linkActivityResultLauncher = null
+    }
+
+    /**
+     * Launch the Link UI to process a payment.
+     *
+     * @param configuration The payment and customer settings
+     */
+    fun present(
+        configuration: LinkConfiguration,
+        linkAccount: LinkAccount
+    ) {
+        val args = LinkExpressContract.Args(
+            configuration = configuration,
+            linkAccount = linkAccount
+        )
+        linkActivityResultLauncher?.launch(args)
+    }
+}

paymentsheet/src/main/java/com/stripe/android/link/express/LinkExpressResult.kt

@@ -0,0 +1,17 @@
+package com.stripe.android.link.express
+
+import android.os.Parcelable
+import com.stripe.android.link.model.LinkAccount
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+internal sealed interface LinkExpressResult : Parcelable {
+    @Parcelize
+    data class Authenticated(val linkAccount: LinkAccount) : LinkExpressResult
+
+    @Parcelize
+    data object Canceled : LinkExpressResult
+
+    @Parcelize
+    data class Failed(val error: Throwable) : LinkExpressResult
+}