1 files changed, 94 insertions, 0 deletions

diff --git a/anastasis/src/main/java/net/taler/anastasis/ui/forms/EditEmailForm.kt b/anastasis/src/main/java/net/taler/anastasis/ui/forms/EditEmailForm.kt
new file mode 100644
index 0000000..0e1a840
--- /dev/null
+++ b/anastasis/src/main/java/net/taler/anastasis/ui/forms/EditEmailForm.kt
@@ -0,0 +1,94 @@
+/*
+ * This file is part of GNU Taler
+ * (C) 2023 Taler Systems S.A.
+ *
+ * GNU Taler is free software; you can redistribute it and/or modify it under the
+ * terms of the GNU General Public License as published by the Free Software
+ * Foundation; either version 3, or (at your option) any later version.
+ *
+ * GNU Taler is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+ * A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * GNU Taler; see the file COPYING.  If not, see <http://www.gnu.org/licenses/>
+ */
+
+package net.taler.anastasis.ui.forms
+
+import android.util.Patterns
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.remember
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.FocusRequester
+import androidx.compose.ui.focus.focusRequester
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.platform.LocalFocusManager
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.input.KeyboardType
+import net.taler.anastasis.R
+import net.taler.anastasis.models.AuthMethod
+import net.taler.anastasis.shared.FieldStatus
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun EditEmailForm(
+    method: AuthMethod? = null,
+    onMethodEdited: (method: AuthMethod) -> Unit,
+) {
+    val localMethod = method ?: AuthMethod(
+        type = AuthMethod.Type.Email,
+        instructions = stringResource(R.string.auth_instruction_email, ""),
+        challenge = "",
+        mimeType = "text/plain",
+    )
+
+    val context = LocalContext.current
+    val focusRequester1 = remember { FocusRequester() }
+    val focusManager = LocalFocusManager.current
+    val status = fieldStatus(localMethod.challenge)
+
+    OutlinedTextField(
+        modifier = Modifier
+            .focusRequester(focusRequester1)
+            .fillMaxWidth(),
+        value = localMethod.challenge,
+        isError = status.error,
+        supportingText = {
+            status.msgRes?.let { Text(stringResource(it)) }
+        },
+        maxLines = 1,
+        keyboardOptions = KeyboardOptions(
+            keyboardType = KeyboardType.Email,
+            imeAction = ImeAction.Done,
+        ),
+        keyboardActions = KeyboardActions(onDone = { focusManager.clearFocus() }),
+        onValueChange = {
+            onMethodEdited(localMethod.copy(
+                instructions = context.getString(R.string.auth_instruction_email, it),
+                challenge = it,
+            ))
+        },
+        label = { Text(stringResource(R.string.email)) },
+    )
+
+    LaunchedEffect(Unit) {
+        focusRequester1.requestFocus()
+    }
+}
+
+private fun fieldStatus(email: String): FieldStatus = if (email.isBlank()) {
+    FieldStatus.Blank
+} else if (Patterns.EMAIL_ADDRESS.matcher(email).matches()) {
+    FieldStatus.Valid
+} else {
+    FieldStatus.Invalid
+}
\ No newline at end of file