Add bringIntoViewOnImeVisible modifier and adopt it on the recovery key screen

Extract the IME-aware bring-into-view logic into a reusable designsystem
modifier and use it in the enter recovery key screen, replacing the inline
BringIntoViewRequester wiring.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

features/securebackup/impl/src/main/kotlin/io/element/android/features/securebackup/impl/enter/SecureBackupEnterRecoveryKeyView.kt

@@ -9,22 +9,10 @@
 package io.element.android.features.securebackup.impl.enter
 
 import androidx.compose.foundation.layout.ColumnScope
-import androidx.compose.foundation.layout.ExperimentalLayoutApi
-import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.isImeVisible
 import androidx.compose.foundation.layout.padding
-import androidx.compose.foundation.relocation.BringIntoViewRequester
-import androidx.compose.foundation.relocation.bringIntoViewRequester
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.LaunchedEffect
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.mutableStateOf
-import androidx.compose.runtime.remember
-import androidx.compose.runtime.rememberCoroutineScope
-import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.focus.onFocusChanged
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.tooling.preview.PreviewParameter
 import androidx.compose.ui.unit.dp
@@ -34,13 +22,11 @@ import io.element.android.features.securebackup.impl.setup.views.RecoveryKeyView
 import io.element.android.libraries.designsystem.atomic.pages.FlowStepPage
 import io.element.android.libraries.designsystem.components.BigIcon
 import io.element.android.libraries.designsystem.components.async.AsyncActionView
+import io.element.android.libraries.designsystem.modifiers.bringIntoViewOnImeVisible
 import io.element.android.libraries.designsystem.preview.ElementPreview
 import io.element.android.libraries.designsystem.preview.PreviewsDayNight
 import io.element.android.libraries.designsystem.theme.components.Button
 import io.element.android.libraries.ui.strings.CommonStrings
-import kotlinx.coroutines.delay
-import kotlinx.coroutines.launch
-import kotlin.time.Duration.Companion.milliseconds
 
 @Composable
 fun SecureBackupEnterRecoveryKeyView(
@@ -71,29 +57,13 @@ fun SecureBackupEnterRecoveryKeyView(
     }
 }
 
-@OptIn(ExperimentalLayoutApi::class)
 @Composable
 private fun Content(
     state: SecureBackupEnterRecoveryKeyState,
 ) {
-    val bringIntoViewRequester = remember { BringIntoViewRequester() }
-    var isFocused by remember { mutableStateOf(false) }
-    val isImeVisible = WindowInsets.isImeVisible
-    val coroutineScope = rememberCoroutineScope()
-    LaunchedEffect(isImeVisible, isFocused) {
-        // When the keyboard is shown, we want to scroll the text field into view
-        if (isImeVisible && isFocused) {
-            coroutineScope.launch {
-                // Delay to ensure the keyboard is fully shown
-                delay(100.milliseconds)
-                bringIntoViewRequester.bringIntoView()
-            }
-        }
-    }
     RecoveryKeyView(
         modifier = Modifier
-            .onFocusChanged { isFocused = it.isFocused }
-            .bringIntoViewRequester(bringIntoViewRequester)
+            .bringIntoViewOnImeVisible()
             .padding(top = 52.dp, bottom = 32.dp),
         state = state.recoveryKeyViewState,
         onClick = null,

libraries/designsystem/src/main/kotlin/io/element/android/libraries/designsystem/modifiers/BringIntoViewOnImeVisible.kt

@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2025 Element Creations Ltd.
+ * Copyright 2025 New Vector Ltd.
+ *
+ * SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial.
+ * Please see LICENSE files in the repository root for full details.
+ */
+
+package io.element.android.libraries.designsystem.modifiers
+
+import androidx.compose.foundation.layout.ExperimentalLayoutApi
+import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.isImeVisible
+import androidx.compose.foundation.relocation.BringIntoViewRequester
+import androidx.compose.foundation.relocation.bringIntoViewRequester
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.onFocusChanged
+import kotlinx.coroutines.delay
+import kotlin.time.Duration.Companion.milliseconds
+
+/**
+ * Keeps the focused field visible above the keyboard. Intended for a field inside a scrollable
+ * container: the field is never clipped by a pinned footer, but the IME is shown only after focus
+ * arrives, so we re-request bringIntoView once it is visible to scroll the field back into the
+ * reduced viewport.
+ */
+@OptIn(ExperimentalLayoutApi::class)
+@Composable
+fun Modifier.bringIntoViewOnImeVisible(): Modifier {
+    val bringIntoViewRequester = remember { BringIntoViewRequester() }
+    var isFocused by remember { mutableStateOf(false) }
+    val isImeVisible = WindowInsets.isImeVisible
+    LaunchedEffect(isImeVisible, isFocused) {
+        if (isImeVisible && isFocused) {
+            // Delay to ensure the keyboard is fully shown before scrolling the field into view.
+            delay(100.milliseconds)
+            bringIntoViewRequester.bringIntoView()
+        }
+    }
+    return this
+        .bringIntoViewRequester(bringIntoViewRequester)
+        .onFocusChanged { isFocused = it.isFocused }
+}