Login: change server screen WIP

app/src/main/java/io/element/android/x/Navigation.kt

@@ -5,11 +5,9 @@ import com.ramcosta.composedestinations.annotation.Destination
 import com.ramcosta.composedestinations.annotation.RootNavGraph
 import com.ramcosta.composedestinations.navigation.DestinationsNavigator
 import com.ramcosta.composedestinations.navigation.popUpTo
-import io.element.android.x.destinations.LoginScreenNavigationDestination
-import io.element.android.x.destinations.MessagesScreenNavigationDestination
-import io.element.android.x.destinations.RoomListScreenNavigationDestination
-import io.element.android.x.destinations.OnBoardingScreenNavigationDestination
+import io.element.android.x.destinations.*
 import io.element.android.x.features.login.LoginScreen
+import io.element.android.x.features.login.changeserver.ChangeServerScreen
 import io.element.android.x.features.messages.MessagesScreen
 import io.element.android.x.features.onboarding.OnBoardingScreen
 import io.element.android.x.features.roomlist.RoomListScreen
@@ -32,6 +30,10 @@ fun OnBoardingScreenNavigation(navigator: DestinationsNavigator) {
 @Composable
 fun LoginScreenNavigation(navigator: DestinationsNavigator) {
     LoginScreen(
+        homeserver = "matrix.org",
+        onChangeServer = {
+            navigator.navigate(ChangeServerScreenNavigationDestination)
+        },
         onLoginWithSuccess = {
             navigator.navigate(RoomListScreenNavigationDestination) {
                 popUpTo(OnBoardingScreenNavigationDestination) {
@@ -42,6 +44,17 @@ fun LoginScreenNavigation(navigator: DestinationsNavigator) {
     )
 }
 
+// TODO Create a subgraph in Login module
+@Destination
+@Composable
+fun ChangeServerScreenNavigation(navigator: DestinationsNavigator) {
+    ChangeServerScreen(
+        onChangeServerSuccess = {
+            navigator.popBackStack()
+        }
+    )
+}
+
 @RootNavGraph(start = true)
 @Destination
 @Composable

features/login/src/main/java/io/element/android/x/features/login/LoginActions.kt

@@ -1,8 +0,0 @@
-package io.element.android.x.features.login
-
-sealed interface LoginActions {
-    data class SetHomeserver(val homeserver: String) : LoginActions
-    data class SetLogin(val login: String) : LoginActions
-    data class SetPassword(val password: String) : LoginActions
-    object Submit : LoginActions
-}

features/login/src/main/java/io/element/android/x/features/login/LoginScreen.kt

@@ -2,132 +2,184 @@
 
 package io.element.android.x.features.login
 
-import androidx.compose.foundation.Image
 import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.verticalScroll
 import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.input.ImeAction
 import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
 import com.airbnb.mvrx.Fail
 import com.airbnb.mvrx.Loading
 import com.airbnb.mvrx.Success
 import com.airbnb.mvrx.compose.collectAsState
 import com.airbnb.mvrx.compose.mavericksViewModel
-import io.element.android.x.designsystem.components.VectorButton
+import io.element.android.x.designsystem.ElementXTheme
 
 @Composable
 fun LoginScreen(
     viewModel: LoginViewModel = mavericksViewModel(),
-    onLoginWithSuccess: () -> Unit = { }
+    homeserver: String,
+    onChangeServer: () -> Unit = { },
+    onLoginWithSuccess: () -> Unit = { },
 ) {
     val state: LoginViewState by viewModel.collectAsState()
+    LaunchedEffect(key1 = Unit) {
+        viewModel.homeserver = homeserver
+    }
     LoginContent(
         state = state,
-        onHomeserverChanged = { viewModel.handle(LoginActions.SetHomeserver(it)) },
-        onLoginChanged = { viewModel.handle(LoginActions.SetLogin(it)) },
-        onPasswordChanged = { viewModel.handle(LoginActions.SetPassword(it)) },
-        onSubmitClicked = { viewModel.handle(LoginActions.Submit) },
+        homeserver = homeserver,
+        onChangeServer = onChangeServer,
+        onLoginChanged = viewModel::onSetName,
+        onPasswordChanged = viewModel::onSetPassword,
+        onSubmitClicked = viewModel::onSubmit,
         onLoginWithSuccess = onLoginWithSuccess
     )
 }
 
 
+@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun LoginContent(
     state: LoginViewState,
-    onHomeserverChanged: (String) -> Unit,
-    onLoginChanged: (String) -> Unit,
-    onPasswordChanged: (String) -> Unit,
-    onSubmitClicked: () -> Unit,
-    onLoginWithSuccess: () -> Unit
+    homeserver: String = "",
+    onChangeServer: () -> Unit = {},
+    onLoginChanged: (String) -> Unit = {},
+    onPasswordChanged: (String) -> Unit = {},
+    onSubmitClicked: () -> Unit = {},
+    onLoginWithSuccess: () -> Unit = {},
 ) {
     Surface(color = MaterialTheme.colorScheme.background) {
         Box(
             modifier = Modifier
                 .fillMaxSize()
-                .padding(16.dp)
         ) {
+            val scrollState = rememberScrollState()
             Column(
-                modifier = Modifier.fillMaxSize(),
+                modifier = Modifier
+                    .verticalScroll(
+                        state = scrollState,
+                    )
+                    .padding(horizontal = 16.dp),
             ) {
                 val isError = state.isLoggedIn is Fail
-                Image(
-                    painterResource(id = R.drawable.element_logo_green),
-                    contentDescription = null,
-                    modifier = Modifier
-                        .align(Alignment.CenterHorizontally)
-                        .padding(40.dp)
-                )
-                OutlinedTextField(
-                    value = state.homeserver,
-                    modifier = Modifier.fillMaxWidth(),
-                    onValueChange = {
-                        onHomeserverChanged(it)
-                    },
-                    keyboardOptions = KeyboardOptions(
-                        keyboardType = KeyboardType.Uri,
-                    ),
-                )
-                OutlinedTextField(
-                    value = state.login,
+                // Title
+                Text(
+                    text = "Welcome back",
                     modifier = Modifier
                         .fillMaxWidth()
-                        .padding(top = 8.dp),
-                    onValueChange = {
-                        onLoginChanged(it)
-                    },
-                    keyboardOptions = KeyboardOptions(
-                        keyboardType = KeyboardType.Text,
-                    ),
+                        .padding(horizontal = 16.dp, vertical = 48.dp),
+                    textAlign = TextAlign.Center,
+                    fontWeight = FontWeight.Bold,
+                    fontSize = 24.sp,
                 )
-                OutlinedTextField(
-                    value = state.password,
-                    modifier = Modifier
-                        .fillMaxWidth()
-                        .padding(top = 8.dp),
-                    onValueChange = {
-                        onPasswordChanged(it)
-                    },
-                    isError = isError,
-                    keyboardOptions = KeyboardOptions(
-                        keyboardType = KeyboardType.Password,
-                        imeAction = ImeAction.Send,
-                    ),
-                )
-                if (isError) {
-                    Text(
-                        text = (state.isLoggedIn as? Fail)?.toString().orEmpty(),
-                        color = MaterialTheme.colorScheme.error,
-                        style = MaterialTheme.typography.bodySmall,
-                        modifier = Modifier.padding(start = 16.dp)
+                // Form
+                Column(
+                    //modifier = Modifier.weight(1f),
+                ) {
+                    Box(
+                        modifier = Modifier.fillMaxWidth()
+                    ) {
+                        OutlinedTextField(
+                            value = homeserver,
+                            modifier = Modifier.fillMaxWidth(),
+                            onValueChange = { /* no op */ },
+                            enabled = false,
+                            label = {
+                                Text(text = "Server")
+                            },
+                            keyboardOptions = KeyboardOptions(
+                                keyboardType = KeyboardType.Uri,
+                            ),
+                        )
+                        Button(
+                            onClick = onChangeServer,
+                            modifier = Modifier
+                                .align(Alignment.CenterEnd)
+                                .padding(top = 8.dp, end = 8.dp),
+                            content = {
+                                Text(text = "Change")
+                            }
+                        )
+                    }
+                    OutlinedTextField(
+                        value = state.login,
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(top = 60.dp),
+                        label = {
+                            Text(text = "Email or username")
+                        },
+                        onValueChange = onLoginChanged,
+                        keyboardOptions = KeyboardOptions(
+                            keyboardType = KeyboardType.Text,
+                        ),
                     )
+                    OutlinedTextField(
+                        value = state.password,
+                        modifier = Modifier
+                            .fillMaxWidth()
+                            .padding(top = 24.dp),
+                        onValueChange = onPasswordChanged,
+                        label = {
+                            Text(text = "Password")
+                        },
+                        isError = isError,
+                        keyboardOptions = KeyboardOptions(
+                            keyboardType = KeyboardType.Password,
+                            imeAction = ImeAction.Send,
+                        ),
+                    )
+                    if (isError) {
+                        Text(
+                            text = (state.isLoggedIn as? Fail)?.toString().orEmpty(),
+                            color = MaterialTheme.colorScheme.error,
+                            style = MaterialTheme.typography.bodySmall,
+                            modifier = Modifier.padding(start = 16.dp)
+                        )
+                    }
                 }
-                VectorButton(
-                    text = "Submit",
-                    onClick = {
-                        onSubmitClicked()
-                    },
+                // Submit
+                Button(
+                    onClick = onSubmitClicked,
                     enabled = state.submitEnabled,
                     modifier = Modifier
-                        .align(Alignment.End)
-                        .padding(top = 16.dp)
-                )
-                if (state.isLoggedIn is Loading) {
-                    // FIXME This does not work, we never enter this if block
-                    CircularProgressIndicator(
-                        modifier = Modifier.align(Alignment.CenterHorizontally)
-                    )
+                        .fillMaxWidth()
+                        .padding(vertical = 32.dp)
+                ) {
+                    Text(text = "Continue")
                 }
                 if (state.isLoggedIn is Success) {
                     onLoginWithSuccess()
                 }
             }
+            if (state.isLoggedIn is Loading) {
+                CircularProgressIndicator(
+                    modifier = Modifier.align(Alignment.Center)
+                )
+            }
         }
     }
-}
+}
+
+@Composable
+@Preview
+private fun LoginContentPreview() {
+    ElementXTheme(darkTheme = false) {
+        LoginContent(
+            state = LoginViewState(),
+            homeserver = "matrix.org",
+        )
+    }
+}

features/login/src/main/java/io/element/android/x/features/login/LoginViewModel.kt

@@ -1,27 +1,28 @@
 package io.element.android.x.features.login
 
+import com.airbnb.mvrx.Loading
 import com.airbnb.mvrx.MavericksViewModel
+import com.airbnb.mvrx.Uninitialized
 import io.element.android.x.matrix.MatrixInstance
 import kotlinx.coroutines.launch
 
 class LoginViewModel(initialState: LoginViewState) :
     MavericksViewModel<LoginViewState>(initialState) {
 
+    lateinit var homeserver: String
+
     private val matrix = MatrixInstance.getInstance()
 
-    fun handle(action: LoginActions) {
-        when (action) {
-            is LoginActions.SetHomeserver -> handleSetHomeserver(action)
-            is LoginActions.SetLogin -> handleSetName(action)
-            is LoginActions.SetPassword -> handleSetPassword(action)
-            LoginActions.Submit -> handleSubmit()
+    fun onSubmit() = withState { state ->
+        setState {
+            copy(isLoggedIn = Loading())
         }
-    }
 
-    private fun handleSubmit() = withState { state ->
         viewModelScope.launch {
             suspend {
-                matrix.login(state.homeserver, state.login, state.password)
+                // Ensure the server is passed to the Rust SDK
+                matrix.setHomeserver(homeserver)
+                matrix.login(state.login, state.password)
                 matrix.activeClient().startSync()
             }.execute {
                 copy(isLoggedIn = it)
@@ -29,15 +30,21 @@ class LoginViewModel(initialState: LoginViewState) :
         }
     }
 
-    private fun handleSetHomeserver(action: LoginActions.SetHomeserver) {
-        setState { copy(homeserver = action.homeserver) }
+    fun onSetPassword(password: String) {
+        setState {
+            copy(
+                password = password,
+                isLoggedIn = Uninitialized,
+            )
+        }
     }
 
-    private fun handleSetPassword(action: LoginActions.SetPassword) {
-        setState { copy(password = action.password) }
-    }
-
-    private fun handleSetName(action: LoginActions.SetLogin) {
-        setState { copy(login = action.login) }
+    fun onSetName(name: String) {
+        setState {
+            copy(
+                login = name,
+                isLoggedIn = Uninitialized,
+            )
+        }
     }
 }

features/login/src/main/java/io/element/android/x/features/login/LoginViewState.kt

@@ -1,17 +1,14 @@
 package io.element.android.x.features.login
 
 import com.airbnb.mvrx.Async
+import com.airbnb.mvrx.Loading
 import com.airbnb.mvrx.MavericksState
 import com.airbnb.mvrx.Uninitialized
 
 data class LoginViewState(
-    val homeserver: String = "matrix.org",
     val login: String = "",
     val password: String = "",
     val isLoggedIn: Async<Unit> = Uninitialized,
 ) : MavericksState {
-
-    val submitEnabled = homeserver.isNotEmpty() && login.isNotEmpty() && password.isNotEmpty()
-
-
+    val submitEnabled = login.isNotEmpty() && password.isNotEmpty() && isLoggedIn !is Loading
 }

features/login/src/main/java/io/element/android/x/features/login/changeserver/ChangeServerScreen.kt

@@ -0,0 +1,149 @@
+@file:OptIn(ExperimentalMaterial3Api::class)
+
+package io.element.android.x.features.login.changeserver
+
+import androidx.compose.foundation.background
+import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
+import androidx.compose.foundation.shape.RoundedCornerShape
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.foundation.verticalScroll
+import androidx.compose.material3.*
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.input.KeyboardType
+import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.tooling.preview.Preview
+import androidx.compose.ui.unit.dp
+import androidx.compose.ui.unit.sp
+import com.airbnb.mvrx.Fail
+import com.airbnb.mvrx.Loading
+import com.airbnb.mvrx.Success
+import com.airbnb.mvrx.compose.collectAsState
+import com.airbnb.mvrx.compose.mavericksViewModel
+
+@Composable
+fun ChangeServerScreen(
+    viewModel: ChangeServerViewModel = mavericksViewModel(),
+    onChangeServerSuccess: () -> Unit = { }
+) {
+    val state: ChangeServerViewState by viewModel.collectAsState()
+    ChangeServerContent(
+        state = state,
+        onChangeServer = viewModel::setServer,
+        onChangeServerSubmit = viewModel::setServerSubmit,
+        onChangeServerSuccess = onChangeServerSuccess
+    )
+}
+
+
+@Composable
+fun ChangeServerContent(
+    state: ChangeServerViewState,
+    onChangeServer: (String) -> Unit = {},
+    onChangeServerSubmit: () -> Unit = {},
+    onChangeServerSuccess: () -> Unit = {},
+) {
+    Surface(color = MaterialTheme.colorScheme.background) {
+        Box(modifier = Modifier.fillMaxSize()) {
+            val scrollState = rememberScrollState()
+            Column(
+                modifier = Modifier
+                    .verticalScroll(
+                        state = scrollState,
+                    )
+                    .padding(horizontal = 16.dp),
+            )
+            {
+                val isError = state.changeServerAction is Fail
+                Text(
+                    modifier = Modifier
+                        .padding(top = 99.dp)
+                        .size(width = 81.dp, height = 73.dp)
+                        .align(Alignment.CenterHorizontally)
+                        .background(
+                            color = MaterialTheme.colorScheme.surfaceVariant,
+                            shape = RoundedCornerShape(32.dp)
+                        ),
+                    text = "\uDBC2\uDEAC",
+                    fontSize = 34.sp,
+                    textAlign = TextAlign.Center,
+                )
+                Text(
+                    text = "Your server",
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .defaultMinSize(minHeight = 56.dp)
+                        .align(Alignment.CenterHorizontally)
+                        .padding(top = 38.dp),
+                    textAlign = TextAlign.Center,
+                    fontWeight = FontWeight.Bold,
+                    fontSize = 24.sp,
+                )
+                Text(
+                    text = "A server is a home for all your data.\n" +
+                            "You choose your server and it’s easy to make one.", // TODO "Learn more.",
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .align(Alignment.CenterHorizontally)
+                        .padding(top = 16.dp),
+                    textAlign = TextAlign.Center,
+                    fontSize = 16.sp,
+                    color = MaterialTheme.colorScheme.secondary
+                )
+                OutlinedTextField(
+                    value = state.homeserver,
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(top = 200.dp),
+                    onValueChange = onChangeServer,
+                    label = {
+                        Text(text = "Server")
+                    },
+                    isError = isError,
+                    keyboardOptions = KeyboardOptions(
+                        keyboardType = KeyboardType.Password,
+                        imeAction = ImeAction.Send,
+                    ),
+                )
+                if (isError) {
+                    Text(
+                        text = (state.changeServerAction as? Fail)?.toString().orEmpty(),
+                        color = MaterialTheme.colorScheme.error,
+                        style = MaterialTheme.typography.bodySmall,
+                        modifier = Modifier.padding(start = 16.dp)
+                    )
+                }
+                Button(
+                    onClick = onChangeServerSubmit,
+                    enabled = state.submitEnabled,
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(top = 44.dp)
+                ) {
+                    Text(text = "Continue")
+                }
+                if (state.changeServerAction is Success) {
+                    onChangeServerSuccess()
+                }
+            }
+            if (state.changeServerAction is Loading) {
+                CircularProgressIndicator(
+                    modifier = Modifier.align(Alignment.Center)
+                )
+            }
+        }
+    }
+}
+
+@Composable
+@Preview
+private fun ChangeServerContentPreview() {
+    ChangeServerContent(
+        state = ChangeServerViewState(homeserver = "matrix.org"),
+    )
+}

features/login/src/main/java/io/element/android/x/features/login/changeserver/ChangeServerViewModel.kt

@@ -0,0 +1,32 @@
+package io.element.android.x.features.login.changeserver
+
+import com.airbnb.mvrx.Loading
+import com.airbnb.mvrx.MavericksViewModel
+import io.element.android.x.matrix.MatrixInstance
+import kotlinx.coroutines.launch
+
+class ChangeServerViewModel(initialState: ChangeServerViewState) :
+    MavericksViewModel<ChangeServerViewState>(initialState) {
+
+    private val matrix = MatrixInstance.getInstance()
+
+    fun setServer(server: String) {
+        setState {
+            copy(homeserver = server)
+        }
+    }
+
+    fun setServerSubmit() = withState { state ->
+        setState {
+            copy(changeServerAction = Loading())
+        }
+
+        viewModelScope.launch {
+            suspend {
+                matrix.setHomeserver(state.homeserver)
+            }.execute { it ->
+                copy(changeServerAction = it)
+            }
+        }
+    }
+}

features/login/src/main/java/io/element/android/x/features/login/changeserver/ChangeServerViewState.kt

@@ -0,0 +1,13 @@
+package io.element.android.x.features.login.changeserver
+
+import com.airbnb.mvrx.Async
+import com.airbnb.mvrx.Loading
+import com.airbnb.mvrx.MavericksState
+import com.airbnb.mvrx.Uninitialized
+
+data class ChangeServerViewState(
+    val homeserver: String = "matrix.org",
+    val changeServerAction: Async<Unit> = Uninitialized,
+) : MavericksState {
+    val submitEnabled = homeserver.isNotEmpty() && changeServerAction !is Loading
+}

features/onboarding/src/main/java/io/element/android/x/features/onboarding/OnBoardingActions.kt

@@ -1,5 +0,0 @@
-package io.element.android.x.features.onboarding
-
-sealed interface OnBoardingActions {
-    data class GoToPage(val page: Int) : OnBoardingActions
-}

libraries/core/build.gradle

@@ -48,4 +48,5 @@ dependencies {
     implementation 'androidx.fragment:fragment-ktx:1.5.3'
 
     implementation 'com.airbnb.android:mavericks-compose:3.0.1'
+    implementation 'androidx.compose.foundation:foundation-layout:1.3.1'
 }

libraries/core/src/main/java/io/element/android/x/core/compose/Keyboard.kt

@@ -0,0 +1,26 @@
+package io.element.android.x.core.compose
+
+import androidx.compose.foundation.layout.ExperimentalLayoutApi
+import androidx.compose.foundation.layout.WindowInsets
+import androidx.compose.foundation.layout.isImeVisible
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.State
+import androidx.compose.runtime.rememberUpdatedState
+import androidx.compose.ui.platform.LocalLifecycleOwner
+import androidx.lifecycle.Lifecycle
+
+/**
+ * Inspired from https://stackoverflow.com/questions/68847559/how-can-i-detect-keyboard-opening-and-closing-in-jetpack-compose
+ */
+enum class Keyboard {
+    Opened, Closed
+}
+
+// Note: it does not work as expected...
+@OptIn(ExperimentalLayoutApi::class)
+@Composable
+fun keyboardAsState(): State<Keyboard> {
+    val lifecycle = LocalLifecycleOwner.current.lifecycle
+    val isResumed = lifecycle.currentState == Lifecycle.State.RESUMED
+    return rememberUpdatedState(if (WindowInsets.isImeVisible && isResumed) Keyboard.Opened else Keyboard.Closed)
+}

libraries/matrix/src/main/java/io/element/android/x/matrix/Matrix.kt

@@ -7,7 +7,6 @@ import io.element.android.x.matrix.util.logError
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.*
-import kotlinx.coroutines.runBlocking
 import kotlinx.coroutines.withContext
 import org.matrix.rustcomponents.sdk.AuthenticationService
 import org.matrix.rustcomponents.sdk.Client
@@ -27,6 +26,7 @@ class Matrix(
     private val baseFolder = File(context.filesDir, "matrix")
     private val sessionStore = SessionStore(context)
     private val matrixClient = MutableStateFlow<Optional<MatrixClient>>(Optional.empty())
+    private val authService = AuthenticationService(baseFolder.absolutePath)
 
     init {
         sessionStore.isLoggedIn()
@@ -70,10 +70,14 @@ class Matrix(
             }
     }
 
-    suspend fun login(homeserver: String, username: String, password: String): MatrixClient =
+    suspend fun setHomeserver(homeserver: String) {
         withContext(coroutineDispatchers.io) {
-            val authService = AuthenticationService(baseFolder.absolutePath)
             authService.configureHomeserver(homeserver)
+        }
+    }
+
+    suspend fun login(username: String, password: String): MatrixClient =
+        withContext(coroutineDispatchers.io) {
             val client = authService.login(username, password, "MatrixRustSDKSample", null)
             sessionStore.storeData(client.session())
             createMatrixClient(client)