Login : quickly add homeserver url field

app/build.gradle

@@ -55,8 +55,9 @@ dependencies {
 
     // rx
     implementation 'io.reactivex.rxjava2:rxkotlin:2.3.0'
-    implementation 'io.reactivex.rxjava2:rxandroid:2.0.2'
+    implementation 'io.reactivex.rxjava2:rxandroid:2.1.0'
     implementation 'com.jakewharton.rxrelay2:rxrelay:2.1.0'
+    implementation 'com.jakewharton.rxbinding2:rxbinding:2.2.0'
 
     implementation("com.airbnb.android:epoxy:$epoxy_version")
     kapt "com.airbnb.android:epoxy-processor:$epoxy_version"
@@ -69,6 +70,7 @@ dependencies {
     implementation 'com.github.bumptech.glide:glide:4.8.0'
     kapt 'com.github.bumptech.glide:compiler:4.8.0'
     implementation 'com.amulyakhare:com.amulyakhare.textdrawable:1.0.1'
+    implementation 'com.google.android.material:material:1.1.0-alpha02'
 
     // DI
     implementation "org.koin:koin-android:$koin_version"

app/src/main/java/im/vector/riotredesign/core/platform/RiotActivity.kt

@@ -1,5 +1,16 @@
 package im.vector.riotredesign.core.platform
 
 import com.airbnb.mvrx.BaseMvRxActivity
+import io.reactivex.disposables.CompositeDisposable
+import io.reactivex.disposables.Disposable
 
-abstract class RiotActivity : BaseMvRxActivity()
+abstract class RiotActivity : BaseMvRxActivity() {
+
+    private val uiDisposables = CompositeDisposable()
+
+    protected fun Disposable.disposeOnDestroy(): Disposable {
+        uiDisposables.add(this)
+        return this
+    }
+
+}

app/src/main/java/im/vector/riotredesign/features/login/LoginActivity.kt

@@ -5,6 +5,8 @@ import android.content.Intent
 import android.os.Bundle
 import android.view.View
 import android.widget.Toast
+import arrow.core.Try
+import com.jakewharton.rxbinding2.widget.RxTextView
 import im.vector.matrix.android.api.Matrix
 import im.vector.matrix.android.api.MatrixCallback
 import im.vector.matrix.android.api.auth.data.HomeServerConnectionConfig
@@ -12,8 +14,15 @@ import im.vector.matrix.android.api.session.Session
 import im.vector.riotredesign.R
 import im.vector.riotredesign.core.platform.RiotActivity
 import im.vector.riotredesign.features.home.HomeActivity
+import io.reactivex.Observable
+import io.reactivex.functions.Function3
+import io.reactivex.rxkotlin.subscribeBy
 import kotlinx.android.synthetic.main.activity_login.*
 
+private const val DEFAULT_HOME_SERVER_URI = "https://matrix.org"
+private const val DEFAULT_IDENTITY_SERVER_URI = "https://vector.im"
+private const val DEFAULT_ANTIVIRUS_SERVER_URI = "https://matrix.org"
+
 class LoginActivity : RiotActivity() {
 
     private val authenticator = Matrix.getInstance().authenticator()
@@ -21,19 +30,21 @@ class LoginActivity : RiotActivity() {
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_login)
-        authenticateButton.setOnClickListener { authenticate() }
+        setupAuthButton()
+        homeServerField.setText(DEFAULT_HOME_SERVER_URI)
     }
 
     private fun authenticate() {
-        val login = loginField.text.trim().toString()
-        val password = passwordField.text.trim().toString()
-        progressBar.visibility = View.VISIBLE
-        val homeServerConnectionConfig = HomeServerConnectionConfig.Builder()
-                .withHomeServerUri("https://matrix.org/")
-                .withIdentityServerUri("https://vector.im")
-                .withAntiVirusServerUri("https://matrix.org/")
-                .build()
+        val login = loginField.text?.trim().toString()
+        val password = passwordField.text?.trim().toString()
+        buildHomeServerConnectionConfig().fold(
+                { Toast.makeText(this@LoginActivity, "Authenticate failure: $it", Toast.LENGTH_LONG).show() },
+                { authenticateWith(it, login, password) }
+        )
+    }
 
+    private fun authenticateWith(homeServerConnectionConfig: HomeServerConnectionConfig, login: String, password: String) {
+        progressBar.visibility = View.VISIBLE
         authenticator.authenticate(homeServerConnectionConfig, login, password, object : MatrixCallback<Session> {
             override fun onSuccess(data: Session) {
                 Matrix.getInstance().currentSession = data
@@ -48,6 +59,31 @@ class LoginActivity : RiotActivity() {
         })
     }
 
+    private fun buildHomeServerConnectionConfig(): Try<HomeServerConnectionConfig> {
+        return Try {
+            val homeServerUri = homeServerField.text?.trim().toString()
+            HomeServerConnectionConfig.Builder()
+                    .withHomeServerUri(homeServerUri)
+                    .withIdentityServerUri(DEFAULT_IDENTITY_SERVER_URI)
+                    .withAntiVirusServerUri(DEFAULT_ANTIVIRUS_SERVER_URI)
+                    .build()
+        }
+    }
+
+    private fun setupAuthButton() {
+        Observable
+                .combineLatest(
+                        RxTextView.textChanges(loginField).map { it.trim().isNotEmpty() },
+                        RxTextView.textChanges(passwordField).map { it.trim().isNotEmpty() },
+                        RxTextView.textChanges(homeServerField).map { it.trim().isNotEmpty() },
+                        Function3<Boolean, Boolean, Boolean, Boolean> { isLoginNotEmpty, isPasswordNotEmpty, isHomeServerNotEmpty ->
+                            isLoginNotEmpty && isPasswordNotEmpty && isHomeServerNotEmpty
+                        }
+                )
+                .subscribeBy { authenticateButton.isEnabled = it }
+                .disposeOnDestroy()
+        authenticateButton.setOnClickListener { authenticate() }
+    }
 
     private fun goToHome() {
         val intent = HomeActivity.newIntent(this)

app/src/main/res/layout/activity_login.xml

@@ -23,25 +23,50 @@
                 android:layout_height="100dp"
                 android:src="@drawable/logo_login" />
 
-            <EditText
+            <com.google.android.material.textfield.TextInputLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="16dp"
+                android:hint="Username">
+
+                <com.google.android.material.textfield.TextInputEditText
                     android:id="@+id/loginField"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                android:layout_marginTop="24dp"
-                android:hint="Username"
                     android:inputType="textEmailAddress"
                     android:maxLines="1" />
+            </com.google.android.material.textfield.TextInputLayout>
 
 
-            <EditText
+            <com.google.android.material.textfield.TextInputLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="16dp"
+                android:hint="Password">
+
+                <com.google.android.material.textfield.TextInputEditText
                     android:id="@+id/passwordField"
                     android:layout_width="match_parent"
                     android:layout_height="wrap_content"
-                android:layout_marginTop="10dp"
                     android:ems="10"
-                android:hint="Password"
                     android:inputType="textPassword"
                     android:maxLines="1" />
+            </com.google.android.material.textfield.TextInputLayout>
+
+            <com.google.android.material.textfield.TextInputLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="16dp"
+                android:hint="Homeserver url">
+
+                <com.google.android.material.textfield.TextInputEditText
+                    android:id="@+id/homeServerField"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:inputType="textUri"
+                    android:maxLines="1" />
+            </com.google.android.material.textfield.TextInputLayout>
+
 
         </LinearLayout>
     </ScrollView>