Merge branch 'develop-2.x' into feature/autocomplete

app/build.gradle

@@ -59,6 +59,7 @@ dependencies {
     implementation libraries.design
     implementation libraries.constraintLayout
     implementation libraries.cardView
+    implementation libraries.flexbox
 
     implementation libraries.androidKtx
 

app/src/main/AndroidManifest.xml

@@ -41,7 +41,12 @@
             android:theme="@style/AppTheme" />
 
         <activity
-            android:name=".webview.WebViewActivity"
+            android:name=".webview.ui.WebViewActivity"
+            android:windowSoftInputMode="adjustResize|stateAlwaysHidden"
+            android:theme="@style/AppTheme" />
+
+        <activity
+            android:name=".webview.cas.ui.CasWebViewActivity"
             android:windowSoftInputMode="adjustResize|stateAlwaysHidden"
             android:theme="@style/AppTheme" />
 

app/src/main/java/chat/rocket/android/authentication/login/presentation/LoginPresenter.kt

@@ -4,17 +4,20 @@ import chat.rocket.android.authentication.domain.model.TokenModel
 import chat.rocket.android.authentication.presentation.AuthenticationNavigator
 import chat.rocket.android.core.lifecycle.CancelStrategy
 import chat.rocket.android.helper.NetworkHelper
+import chat.rocket.android.helper.UrlHelper
 import chat.rocket.android.infrastructure.LocalRepository
 import chat.rocket.android.server.domain.*
 import chat.rocket.android.server.infraestructure.RocketChatClientFactory
+import chat.rocket.android.util.extensions.generateRandomString
 import chat.rocket.android.util.extensions.isEmailValid
 import chat.rocket.android.util.extensions.launchUI
 import chat.rocket.common.RocketChatException
 import chat.rocket.common.RocketChatTwoFactorException
-import chat.rocket.common.model.Token
 import chat.rocket.common.util.ifNull
 import chat.rocket.core.RocketChatClient
 import chat.rocket.core.internal.rest.*
+import kotlinx.coroutines.experimental.delay
+import java.util.concurrent.TimeUnit
 import javax.inject.Inject
 
 class LoginPresenter @Inject constructor(private val view: LoginView,
@@ -28,51 +31,69 @@ class LoginPresenter @Inject constructor(private val view: LoginView,
     // TODO - we should validate the current server when opening the app, and have a nonnull get()
     private val client: RocketChatClient = factory.create(serverInteractor.get()!!)
 
-    fun setup() {
+    fun setupView() {
         val server = serverInteractor.get()
         if (server == null) {
             navigator.toServerScreen()
             return
         }
-
         val settings = settingsInteractor.get(server)
-        if (settings == null) {
-            navigator.toServerScreen()
-            return
+
+        if (settings.isLoginFormEnabled()) {
+            view.showFormView()
+            view.setupLoginButtonListener()
+            view.setupGlobalListener()
+        } else {
+            view.hideFormView()
+        }
+
+        if (settings.isRegistrationEnabledForNewUsers()) {
+            view.showSignUpView()
+            view.setupSignUpView()
         }
 
-        view.showSignUpView(settings.registrationEnabled())
+        if (settings.isCasAuthenticationEnabled()) {
+            val token = generateRandomString(17)
+            view.setupCasButtonListener(UrlHelper.getCasUrl(settings.casLoginUrl(), server, token), token)
+            view.showCasButton()
+        }
 
-        var hasSocial = false
-        if (settings.facebookEnabled()) {
+        var totalSocialAccountsEnabled = 0
+        if (settings.isFacebookAuthenticationEnabled()) {
             view.enableLoginByFacebook()
-            hasSocial = true
+            totalSocialAccountsEnabled++
         }
-        if (settings.githubEnabled()) {
+        if (settings.isGithubAuthenticationEnabled()) {
             view.enableLoginByGithub()
-            hasSocial = true
+            totalSocialAccountsEnabled++
         }
-        if (settings.googleEnabled()) {
+        if (settings.isGoogleAuthenticationEnabled()) {
             view.enableLoginByGoogle()
-            hasSocial = true
+            totalSocialAccountsEnabled++
         }
-        if (settings.linkedinEnabled()) {
+        if (settings.isLinkedinAuthenticationEnabled()) {
             view.enableLoginByLinkedin()
-            hasSocial = true
+            totalSocialAccountsEnabled++
         }
-        if (settings.meteorEnabled()) {
+        if (settings.isMeteorAuthenticationEnabled()) {
             view.enableLoginByMeteor()
-            hasSocial = true
+            totalSocialAccountsEnabled++
         }
-        if (settings.twitterEnabled()) {
+        if (settings.isTwitterAuthenticationEnabled()) {
             view.enableLoginByTwitter()
-            hasSocial = true
+            totalSocialAccountsEnabled++
         }
-        if (settings.gitlabEnabled()) {
+        if (settings.isGitlabAuthenticationEnabled()) {
             view.enableLoginByGitlab()
-            hasSocial = true
+            totalSocialAccountsEnabled++
+        }
+
+        if (totalSocialAccountsEnabled > 0) {
+            view.showOauthView()
+            if (totalSocialAccountsEnabled > 3) {
+                view.setupFabListener()
+            }
         }
-        view.showOauthView(hasSocial)
     }
 
     fun authenticate(usernameOrEmail: String, password: String) {
@@ -90,34 +111,23 @@ class LoginPresenter @Inject constructor(private val view: LoginView,
             else -> {
                 launchUI(strategy) {
                     if (NetworkHelper.hasInternetAccess()) {
+                        view.disableUserInput()
                         view.showLoading()
-
                         try {
-                            var token: Token? = null
-                            if (usernameOrEmail.isEmailValid()) {
-                                token = client.loginWithEmail(usernameOrEmail, password)
+                            val token = if (usernameOrEmail.isEmailValid()) {
+                                client.loginWithEmail(usernameOrEmail, password)
                             } else {
                                 val settings = settingsInteractor.get(server)
-                                if (settings != null) {
-                                    token = if (settings.ldapEnabled()) {
-                                        client.loginWithLdap(usernameOrEmail, password)
-                                    } else {
-                                        client.login(usernameOrEmail, password)
-                                    }
+                                if (settings.isLdapAuthenticationEnabled()) {
+                                    client.loginWithLdap(usernameOrEmail, password)
                                 } else {
-                                    navigator.toServerScreen()
+                                    client.login(usernameOrEmail, password)
                                 }
                             }
 
-                            if (token != null) {
-                                val me = client.me()
-                                multiServerRepository.save(server, TokenModel(token.userId, token.authToken))
-                                localRepository.save(LocalRepository.USERNAME_KEY, me.username)
-                                registerPushToken()
-                                navigator.toChatList()
-                            } else {
-                                view.showGenericErrorMessage()
-                            }
+                            saveToken(server, TokenModel(token.userId, token.authToken), client.me().username)
+                            registerPushToken()
+                            navigator.toChatList()
                         } catch (exception: RocketChatException) {
                             when (exception) {
                                 is RocketChatTwoFactorException -> {
@@ -133,6 +143,7 @@ class LoginPresenter @Inject constructor(private val view: LoginView,
                             }
                         } finally {
                             view.hideLoading()
+                            view.enableUserInput()
                         }
                     } else {
                         view.showNoInternetConnection()
@@ -142,8 +153,46 @@ class LoginPresenter @Inject constructor(private val view: LoginView,
         }
     }
 
+    fun authenticateWithCas(casToken: String) {
+        launchUI(strategy) {
+            if (NetworkHelper.hasInternetAccess()) {
+                view.disableUserInput()
+                view.showLoading()
+                try {
+                    val server = serverInteractor.get()
+                    if (server != null) {
+                        delay(3, TimeUnit.SECONDS)
+                        val token = client.loginWithCas(casToken)
+                        saveToken(server, TokenModel(token.userId, token.authToken), client.me().username)
+                        registerPushToken()
+                        navigator.toChatList()
+                    } else {
+                        navigator.toServerScreen()
+                    }
+                } catch (exception: RocketChatException) {
+                    exception.message?.let {
+                        view.showMessage(it)
+                    }.ifNull {
+                        view.showGenericErrorMessage()
+                    }
+                } finally {
+                    view.hideLoading()
+                    view.enableUserInput()
+                }
+            } else {
+                view.showNoInternetConnection()
+            }
+        }
+    }
+
     fun signup() = navigator.toSignUp()
 
+    private suspend fun saveToken(server: String, tokenModel: TokenModel, username: String?) {
+        multiServerRepository.save(server, tokenModel)
+        localRepository.save(LocalRepository.USERNAME_KEY, username)
+        registerPushToken()
+    }
+
     private suspend fun registerPushToken() {
         localRepository.get(LocalRepository.KEY_PUSH_TOKEN)?.let {
             client.registerPushToken(it)

app/src/main/java/chat/rocket/android/authentication/login/presentation/LoginView.kt

@@ -7,62 +7,135 @@ import chat.rocket.android.core.behaviours.MessageView
 interface LoginView : LoadingView, MessageView, InternetView {
 
     /**
-     * Shows the oauth view if the server settings allow the login via social accounts.
+     * Shows the form view (i.e the username/email and password fields) if it is enabled by the server settings.
      *
-     * REMARK: we must show at maximum *three* social accounts views ([enableLoginByFacebook], [enableLoginByGithub], [enableLoginByGoogle],
+     * REMARK: We must set up the login button listener [setupLoginButtonListener].
+     * Remember to enable [enableUserInput] or disable [disableUserInput] the view interaction for the user when submitting the form.
+     */
+    fun showFormView()
+
+    /**
+     * Hides the form view.
+     */
+    fun hideFormView()
+
+    /**
+     * Setups the login button when tapped.
+     */
+    fun setupLoginButtonListener()
+
+    /**
+     * Enables the view interactions for the user.
+     */
+    fun enableUserInput()
+
+    /**
+     * Disables the view interactions for the user.
+     */
+    fun disableUserInput()
+
+    /**
+     * Shows the CAS button if the sign in/sign out via CAS protocol is enabled by the server settings.
+     *
+     * REMARK: We must set up the CAS button listener [setupCasButtonListener].
+     */
+    fun showCasButton()
+
+    /**
+     * Hides the CAS button.
+     */
+    fun hideCasButton()
+
+    /**
+     * Setups the CAS button when tapped.
+     *
+     * @param casUrl The CAS URL to login/sign up with.
+     * @param casToken The requested Token sent to the CAS server.
+     */
+    fun setupCasButtonListener(casUrl: String, casToken: String)
+
+    /**
+     * Shows the sign up view if the new users registration is enabled by the server settings.
+     *
+     * REMARK: We must set up the sign up view listener [setupSignUpView].
+     */
+    fun showSignUpView()
+
+    /**
+     * Setups the sign up view when tapped.
+     */
+    fun setupSignUpView()
+
+    /**
+     * Hides the sign up view.
+     */
+    fun hideSignUpView()
+
+    /**
+     * Shows the oauth view if the login via social accounts is enabled by the server settings.
+     *
+     * REMARK: We must show at maximum *three* social accounts views ([enableLoginByFacebook], [enableLoginByGithub], [enableLoginByGoogle],
      * [enableLoginByLinkedin], [enableLoginByMeteor], [enableLoginByTwitter] or [enableLoginByGitlab]) for the oauth view.
      * If the possibility of login via social accounts exceeds 3 different ways we should set up the FAB ([setupFabListener]) to show the remaining view(s).
-     *
-     * @param value True to show the oauth view, false otherwise.
      */
-    fun showOauthView(value: Boolean)
+    fun showOauthView()
 
     /**
-     * Setups the FloatingActionButton to show more social accounts views (expanding the oauth view interface to show the remaining view(s)).
+     * Hides the oauth view.
      */
-    fun setupFabListener()
+    fun hideOauthView()
+
+    /**
+     * Shows the login button.
+     */
+    fun showLoginButton()
+
+    /**
+     * Hides the login button.
+     */
+    fun hideLoginButton()
 
     /**
-     * Shows the login by Facebook view.
+     * Shows the "login by Facebook view if it is enabled by the server settings.
      */
     fun enableLoginByFacebook()
 
     /**
-     * Shows the login by Github view.
+     * Shows the "login by Github" view if it is enabled by the server settings.
      */
     fun enableLoginByGithub()
 
     /**
-     * Shows the login by Google view.
+     * Shows the "login by Google" view if it is enabled by the server settings.
      */
     fun enableLoginByGoogle()
 
     /**
-     * Shows the login by Linkedin view.
+     * Shows the "login by Linkedin" view if it is enabled by the server settings.
      */
     fun enableLoginByLinkedin()
 
     /**
-     * Shows the login by Meteor view.
+     * Shows the "login by Meteor" view if it is enabled by the server settings.
      */
     fun enableLoginByMeteor()
 
     /**
-     * Shows the login by Twitter view.
+     * Shows the "login by Twitter" view if it is enabled by the server settings.
      */
     fun enableLoginByTwitter()
 
     /**
-     * Shows the login by Gitlab view.
+     * Shows the "login by Gitlab" view if it is enabled by the server settings.
      */
     fun enableLoginByGitlab()
 
     /**
-     * Shows the sign up view if the server settings allow the new users registration.
-     *
-     * @param value True to show the sign up view, false otherwise.
+     * Setups the FloatingActionButton to show more social accounts views (expanding the oauth view interface to show the remaining view(s)).
      */
-    fun showSignUpView(value: Boolean)
+    fun setupFabListener()
+
+    fun setupGlobalListener()
 
     /**
      * Alerts the user about a wrong inputted username or email.

app/src/main/java/chat/rocket/android/authentication/login/ui/LoginFragment.kt

 package chat.rocket.android.authentication.login.ui
 
 import DrawableHelper
-import android.content.Context
+import android.app.Activity
+import android.content.Intent
 import android.os.Build
 import android.os.Bundle
 import android.support.v4.app.Fragment
@@ -12,30 +13,24 @@ import android.view.ViewGroup
 import android.view.ViewTreeObserver
 import android.widget.ImageButton
 import android.widget.ScrollView
-
 import chat.rocket.android.R
 import chat.rocket.android.authentication.login.presentation.LoginPresenter
 import chat.rocket.android.authentication.login.presentation.LoginView
-import chat.rocket.android.helper.AnimationHelper
 import chat.rocket.android.helper.KeyboardHelper
 import chat.rocket.android.helper.TextHelper
-import chat.rocket.android.util.extensions.inflate
-import chat.rocket.android.util.extensions.setVisible
-import chat.rocket.android.util.extensions.showToast
-import chat.rocket.android.util.extensions.textContent
-
+import chat.rocket.android.util.extensions.*
+import chat.rocket.android.webview.cas.ui.webViewIntent
 import dagger.android.support.AndroidSupportInjection
 import kotlinx.android.synthetic.main.fragment_authentication_log_in.*
 import javax.inject.Inject
 
+internal const val REQUEST_CODE_FOR_CAS = 1
+
 class LoginFragment : Fragment(), LoginView {
     @Inject lateinit var presenter: LoginPresenter
-    @Inject lateinit var appContext: Context // TODO we really need it? Check alternatives...
-
     private val layoutListener = ViewTreeObserver.OnGlobalLayoutListener {
         areLoginOptionsNeeded()
     }
-
     private var isGlobalLayoutListenerSetUp = false
 
     companion object {
@@ -47,7 +42,8 @@ class LoginFragment : Fragment(), LoginView {
         AndroidSupportInjection.inject(this)
     }
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? = container?.inflate(R.layout.fragment_authentication_log_in)
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? =
+        container?.inflate(R.layout.fragment_authentication_log_in)
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
@@ -56,54 +52,143 @@ class LoginFragment : Fragment(), LoginView {
             tintEditTextDrawableStart()
         }
 
-        presenter.setup()
-        showThreeSocialMethods()
+        presenter.setupView()
+    }
+
+    override fun onDestroyView() {
+        super.onDestroyView()
+        if (isGlobalLayoutListenerSetUp) {
+            scroll_view.viewTreeObserver.removeOnGlobalLayoutListener(layoutListener)
+            isGlobalLayoutListenerSetUp = false
+        }
+    }
+
+    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
+        if (requestCode == REQUEST_CODE_FOR_CAS) {
+            if (resultCode == Activity.RESULT_OK) {
+                data?.apply {
+                    presenter.authenticateWithCas(getStringExtra("cas_token"))
+                }
+            }
+        }
+    }
+
+    private fun tintEditTextDrawableStart() {
+        activity?.apply {
+            val personDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_assignment_ind_black_24dp, this)
+            val lockDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_lock_black_24dp, this)
+
+            val drawables = arrayOf(personDrawable, lockDrawable)
+            DrawableHelper.wrapDrawables(drawables)
+            DrawableHelper.tintDrawables(drawables, this, R.color.colorDrawableTintGrey)
+            DrawableHelper.compoundDrawables(arrayOf(text_username_or_email, text_password), drawables)
+        }
+    }
+
+    override fun showLoading() {
+        view_loading.setVisible(true)
+    }
+
+    override fun hideLoading() {
+        view_loading.setVisible(false)
+    }
 
+    override fun showNoInternetConnection() {
+        showMessage(R.string.msg_no_internet_connection)
+    }
+
+    override fun showMessage(resId: Int) {
+        showToast(resId)
+    }
+
+    override fun showMessage(message: String) {
+        showToast(message)
+    }
+
+    override fun showGenericErrorMessage() {
+        showMessage(R.string.msg_generic_error)
+    }
+
+    override fun showFormView() {
+        text_username_or_email.setVisible(true)
+        text_password.setVisible(true)
+    }
+
+    override fun hideFormView() {
+        text_username_or_email.setVisible(false)
+        text_password.setVisible(false)
+    }
+
+    override fun setupLoginButtonListener() {
         button_log_in.setOnClickListener {
             presenter.authenticate(text_username_or_email.textContent, text_password.textContent)
         }
+    }
 
-        setupFabListener()
-        setupSignUpListener()
+    override fun enableUserInput() {
+        button_log_in.isEnabled = true
+        text_username_or_email.isEnabled = true
+        text_password.isEnabled = true
     }
 
-    override fun onViewStateRestored(savedInstanceState: Bundle?) {
-        super.onViewStateRestored(savedInstanceState)
+    override fun disableUserInput() {
+        button_log_in.isEnabled = false
+        text_username_or_email.isEnabled = false
+        text_password.isEnabled = false
+    }
 
-        areLoginOptionsNeeded()
+    override fun showCasButton() {
+        button_cas.setVisible(true)
     }
 
-    override fun onDestroyView() {
-        super.onDestroyView()
-        if (isGlobalLayoutListenerSetUp) {
-            scroll_view.viewTreeObserver.removeOnGlobalLayoutListener(layoutListener)
-            isGlobalLayoutListenerSetUp = false
+    override fun hideCasButton() {
+        button_cas.setVisible(false)
+    }
+
+    override fun setupCasButtonListener(casUrl: String, casToken: String) {
+        button_cas.setOnClickListener {
+            startActivityForResult(context?.webViewIntent(casUrl, casToken), REQUEST_CODE_FOR_CAS)
+            activity?.overridePendingTransition(R.anim.slide_up, R.anim.hold)
         }
     }
 
-    override fun showOauthView(value: Boolean) {
-        if (value) {
-            social_accounts_container.setVisible(true)
-            button_fab.setVisible(true)
+    override fun showSignUpView() {
+        text_new_to_rocket_chat.setVisible(true)
+    }
 
-            // We need to setup the layout to hide and show the oauth interface when the soft keyboard is shown
-            // (means that the user touched the text_username_or_email or text_password EditText to fill that respective fields).
-            if (!isGlobalLayoutListenerSetUp) {
-                scroll_view.viewTreeObserver.addOnGlobalLayoutListener(layoutListener)
-                isGlobalLayoutListenerSetUp = true
-            }
-        } else {
-            social_accounts_container.setVisible(false)
-            button_fab.setVisible(false)
+    override fun setupSignUpView() {
+        val signUp = getString(R.string.title_sign_up)
+        val newToRocketChat = String.format(getString(R.string.msg_new_user), signUp)
+
+        text_new_to_rocket_chat.text = newToRocketChat
+
+        val signUpListener = object : ClickableSpan() {
+            override fun onClick(view: View) = presenter.signup()
         }
+
+        TextHelper.addLink(text_new_to_rocket_chat, arrayOf(signUp), arrayOf(signUpListener))
     }
 
-    override fun setupFabListener() {
-        button_fab.setOnClickListener({
-            button_fab.hide()
-            showRemainingSocialAccountsView()
-            scrollToBottom()
-        })
+    override fun hideSignUpView() {
+        text_new_to_rocket_chat.setVisible(false)
+    }
+
+    override fun showOauthView() {
+        showThreeSocialAccountsMethods()
+        social_accounts_container.setVisible(true)
+    }
+
+    override fun hideOauthView() {
+        social_accounts_container.setVisible(false)
+        button_fab.setVisible(false)
+    }
+
+    override fun showLoginButton() {
+        button_log_in.setVisible(true)
+    }
+
+    override fun hideLoginButton() {
+        button_log_in.setVisible(false)
     }
 
     override fun enableLoginByFacebook() {
@@ -134,99 +219,71 @@ class LoginFragment : Fragment(), LoginView {
         button_gitlab.isEnabled = true
     }
 
-    override fun showSignUpView(value: Boolean) = text_new_to_rocket_chat.setVisible(value)
+    override fun setupFabListener() {
+        button_fab.setVisible(true)
+        button_fab.setOnClickListener({
+            button_fab.hide()
+            showRemainingSocialAccountsView()
+            scrollToBottom()
+        })
+    }
+
+    override fun setupGlobalListener() {
+        // We need to setup the layout to hide and show the oauth interface when the soft keyboard is shown
+        // (means that the user touched the text_username_or_email or text_password EditText to fill that respective fields).
+        if (!isGlobalLayoutListenerSetUp) {
+            scroll_view.viewTreeObserver.addOnGlobalLayoutListener(layoutListener)
+            isGlobalLayoutListenerSetUp = true
+        }
+    }
 
     override fun alertWrongUsernameOrEmail() {
-        AnimationHelper.vibrateSmartPhone(appContext)
-        AnimationHelper.shakeView(text_username_or_email)
+        vibrateSmartPhone()
+        text_username_or_email.shake()
         text_username_or_email.requestFocus()
     }
 
     override fun alertWrongPassword() {
-        AnimationHelper.vibrateSmartPhone(appContext)
-        AnimationHelper.shakeView(text_password)
+        vibrateSmartPhone()
+        text_password.shake()
         text_password.requestFocus()
     }
 
-    override fun showLoading() {
-        enableUserInput(false)
-        view_loading.setVisible(true)
+    private fun showRemainingSocialAccountsView() {
+        social_accounts_container.postDelayed({
+            (0..social_accounts_container.childCount)
+                .mapNotNull { social_accounts_container.getChildAt(it) as? ImageButton }
+                .filter { it.isEnabled }
+                .forEach { it.visibility = View.VISIBLE }
+        }, 1000)
     }
 
-    override fun hideLoading() {
-        view_loading.setVisible(false)
-        enableUserInput(true)
+    // Scrolling to the bottom of the screen.
+    private fun scrollToBottom() {
+        scroll_view.postDelayed({
+            scroll_view.fullScroll(ScrollView.FOCUS_DOWN)
+        }, 1250)
     }
 
-    override fun showMessage(resId: Int) = showToast(resId)
-
-    override fun showMessage(message: String) = showToast(message)
-
-    override fun showGenericErrorMessage() = showMessage(getString(R.string.msg_generic_error))
-
-
-    override fun showNoInternetConnection() = showMessage(getString(R.string.msg_no_internet_connection))
 
     private fun areLoginOptionsNeeded() {
         if (!isEditTextEmpty() || KeyboardHelper.isSoftKeyboardShown(scroll_view.rootView)) {
-            showSignUpView(false)
-            showOauthView(false)
-            showLoginButton(true)
+            hideSignUpView()
+            hideOauthView()
+            showLoginButton()
         } else {
-            showSignUpView(true)
-            showOauthView(true)
-            showLoginButton(false)
+            showSignUpView()
+            showOauthView()
+            hideLoginButton()
         }
     }
 
-    private fun tintEditTextDrawableStart() {
-        activity?.apply {
-            val personDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_assignment_ind_black_24dp, this)
-            val lockDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_lock_black_24dp, this)
-
-            val drawables = arrayOf(personDrawable, lockDrawable)
-            DrawableHelper.wrapDrawables(drawables)
-            DrawableHelper.tintDrawables(drawables, this, R.color.colorDrawableTintGrey)
-            DrawableHelper.compoundDrawables(arrayOf(text_username_or_email, text_password), drawables)
-        }
-    }
-
-    private fun showLoginButton(value: Boolean) {
-        button_log_in.setVisible(value)
-    }
-
-    private fun setupSignUpListener() {
-        val signUp = getString(R.string.title_sign_up)
-        val newToRocketChat = String.format(getString(R.string.msg_new_user), signUp)
-
-        text_new_to_rocket_chat.text = newToRocketChat
-
-        val signUpListener = object : ClickableSpan() {
-            override fun onClick(view: View) = presenter.signup()
-        }
-
-        TextHelper.addLink(text_new_to_rocket_chat, arrayOf(signUp), arrayOf(signUpListener))
-    }
-
-    private fun enableUserInput(value: Boolean) {
-        button_log_in.isEnabled = value
-        text_username_or_email.isEnabled = value
-        text_password.isEnabled = value
-    }
-
     // Returns true if *all* EditTexts are empty.
-    private fun isEditTextEmpty(): Boolean = text_username_or_email.textContent.isBlank() && text_password.textContent.isEmpty()
-
-    private fun showRemainingSocialAccountsView() {
-        social_accounts_container.postDelayed({
-            for (i in 0..social_accounts_container.childCount) {
-                val view = social_accounts_container.getChildAt(i) as? ImageButton ?: continue
-                if (view.isEnabled) view.visibility = View.VISIBLE
-            }
-        }, 1000)
+    private fun isEditTextEmpty(): Boolean  {
+        return text_username_or_email.textContent.isBlank() && text_password.textContent.isEmpty()
     }
 
-    private fun showThreeSocialMethods() {
+    private fun showThreeSocialAccountsMethods() {
         var count = 0
         for (i in 0..social_accounts_container.childCount) {
             val view = social_accounts_container.getChildAt(i) as? ImageButton ?: continue
@@ -236,10 +293,4 @@ class LoginFragment : Fragment(), LoginView {
             }
         }
     }
-
-    private fun scrollToBottom() {
+}
\ No newline at end of file
-        scroll_view.postDelayed({
-            scroll_view.fullScroll(ScrollView.FOCUS_DOWN)
-        }, 1250)
-    }
-}

app/src/main/java/chat/rocket/android/authentication/presentation/AuthenticationNavigator.kt

@@ -9,7 +9,7 @@ import chat.rocket.android.authentication.twofactor.ui.TwoFAFragment
 import chat.rocket.android.authentication.ui.AuthenticationActivity
 import chat.rocket.android.main.ui.MainActivity
 import chat.rocket.android.util.extensions.addFragmentBackStack
-import chat.rocket.android.webview.webViewIntent
+import chat.rocket.android.webview.ui.webViewIntent
 
 class AuthenticationNavigator(internal val activity: AuthenticationActivity, internal val context: Context) {
 
@@ -37,14 +37,11 @@ class AuthenticationNavigator(internal val activity: AuthenticationActivity, int
     }
 
     fun toChatList() {
-        val chatList = Intent(activity, MainActivity::class.java).apply {
-            //TODO any parameter to pass
-        }
-        activity.startActivity(chatList)
+        activity.startActivity(Intent(activity, MainActivity::class.java))
         activity.finish()
     }
 
     fun toServerScreen() {
         TODO("not implemented") //To change body of created functions use File | Settings | File Templates.
     }
-}
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/authentication/server/presentation/ServerPresenter.kt

@@ -17,16 +17,14 @@ class ServerPresenter @Inject constructor(private val view: ServerView,
                                           private val refreshSettingsInteractor: RefreshSettingsInteractor) {
     fun connect(server: String) {
         if (!UrlHelper.isValidUrl(server)) {
-            view.showInvalidServerUrl()
+            view.showInvalidServerUrlMessage()
         } else {
             launchUI(strategy) {
                 if (NetworkHelper.hasInternetAccess()) {
                     view.showLoading()
-
                     try {
                         refreshSettingsInteractor.refresh(server)
                         serverInteractor.save(server)
-
                         navigator.toLogin()
                     } catch (ex: Exception) {
                         ex.message?.let {

app/src/main/java/chat/rocket/android/authentication/server/presentation/ServerView.kt

@@ -7,7 +7,7 @@ import chat.rocket.android.core.behaviours.MessageView
 interface ServerView : LoadingView, MessageView, InternetView {
 
     /**
-     * Notifies the user about an invalid inputted server URL.
+     * Shows an invalid server URL message.
      */
-    fun showInvalidServerUrl()
+    fun showInvalidServerUrlMessage()
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/authentication/server/ui/ServerFragment.kt

@@ -30,7 +30,8 @@ class ServerFragment : Fragment(), ServerView {
         AndroidSupportInjection.inject(this)
     }
 
-    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? = container?.inflate(R.layout.fragment_authentication_server)
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? =
+        container?.inflate(R.layout.fragment_authentication_server)
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
@@ -43,7 +44,7 @@ class ServerFragment : Fragment(), ServerView {
         relative_layout.viewTreeObserver.removeOnGlobalLayoutListener(layoutListener)
     }
 
-    override fun showInvalidServerUrl() = showMessage(getString(R.string.msg_invalid_server_url))
+    override fun showInvalidServerUrlMessage() = showMessage(getString(R.string.msg_invalid_server_url))
 
     override fun showLoading() {
         enableUserInput(false)

app/src/main/java/chat/rocket/android/authentication/signup/ui/SignupFragment.kt

 package chat.rocket.android.authentication.signup.ui
 
 import DrawableHelper
-import android.content.Context
 import android.os.Build
 import android.os.Bundle
 import android.support.v4.app.Fragment
@@ -11,19 +10,15 @@ import android.widget.Toast
 import chat.rocket.android.R
 import chat.rocket.android.authentication.signup.presentation.SignupPresenter
 import chat.rocket.android.authentication.signup.presentation.SignupView
-import chat.rocket.android.helper.AnimationHelper
 import chat.rocket.android.helper.KeyboardHelper
 import chat.rocket.android.helper.TextHelper
-import chat.rocket.android.util.extensions.setVisible
-import chat.rocket.android.util.extensions.textContent
-import chat.rocket.android.util.extensions.showToast
+import chat.rocket.android.util.extensions.*
 import dagger.android.support.AndroidSupportInjection
 import kotlinx.android.synthetic.main.fragment_authentication_sign_up.*
 import javax.inject.Inject
 
 class SignupFragment : Fragment(), SignupView {
     @Inject lateinit var presenter: SignupPresenter
-    @Inject lateinit var appContext: Context
 
     private val layoutListener = ViewTreeObserver.OnGlobalLayoutListener {
         if (KeyboardHelper.isSoftKeyboardShown(constraint_layout.rootView)) {
@@ -68,26 +63,26 @@ class SignupFragment : Fragment(), SignupView {
     }
 
     override fun alertBlankName() {
-        AnimationHelper.vibrateSmartPhone(appContext)
-        AnimationHelper.shakeView(text_username)
-        text_username.requestFocus()
+        vibrateSmartPhone()
+        text_name.shake()
+        text_name.requestFocus()
     }
 
     override fun alertBlankUsername() {
-        AnimationHelper.vibrateSmartPhone(appContext)
-        AnimationHelper.shakeView(text_username)
+        vibrateSmartPhone()
+        text_username.shake()
         text_username.requestFocus()
     }
 
     override fun alertEmptyPassword() {
-        AnimationHelper.vibrateSmartPhone(appContext)
-        AnimationHelper.shakeView(text_password)
+        vibrateSmartPhone()
+        text_password.shake()
         text_password.requestFocus()
     }
 
     override fun alertBlankEmail() {
-        AnimationHelper.vibrateSmartPhone(appContext)
-        AnimationHelper.shakeView(text_email)
+        vibrateSmartPhone()
+        text_email.shake()
         text_email.requestFocus()
     }
 
@@ -114,15 +109,17 @@ class SignupFragment : Fragment(), SignupView {
     }
 
     private fun tintEditTextDrawableStart() {
-        val personDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_person_black_24dp, appContext)
-        val atDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_at_black_24dp, appContext)
-        val lockDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_lock_black_24dp, appContext)
-        val emailDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_email_black_24dp, appContext)
-
-        val drawables = arrayOf(personDrawable, atDrawable, lockDrawable, emailDrawable)
-        DrawableHelper.wrapDrawables(drawables)
-        DrawableHelper.tintDrawables(drawables, appContext, R.color.colorDrawableTintGrey)
-        DrawableHelper.compoundDrawables(arrayOf(text_username, text_username, text_password, text_email), drawables)
+        activity?.apply {
+            val personDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_person_black_24dp, this)
+            val atDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_at_black_24dp, this)
+            val lockDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_lock_black_24dp, this)
+            val emailDrawable = DrawableHelper.getDrawableFromId(R.drawable.ic_email_black_24dp, this)
+
+            val drawables = arrayOf(personDrawable, atDrawable, lockDrawable, emailDrawable)
+            DrawableHelper.wrapDrawables(drawables)
+            DrawableHelper.tintDrawables(drawables, this, R.color.colorDrawableTintGrey)
+            DrawableHelper.compoundDrawables(arrayOf(text_name, text_username, text_password, text_email), drawables)
+        }
     }
 
     private fun setUpNewUserAgreementListener() {

app/src/main/java/chat/rocket/android/authentication/twofactor/ui/TwoFAFragment.kt

@@ -12,10 +12,7 @@ import android.view.inputmethod.InputMethodManager
 import chat.rocket.android.R
 import chat.rocket.android.authentication.twofactor.presentation.TwoFAPresenter
 import chat.rocket.android.authentication.twofactor.presentation.TwoFAView
-import chat.rocket.android.helper.AnimationHelper
-import chat.rocket.android.util.extensions.setVisible
-import chat.rocket.android.util.extensions.textContent
-import chat.rocket.android.util.extensions.showToast
+import chat.rocket.android.util.extensions.*
 import dagger.android.support.AndroidSupportInjection
 import kotlinx.android.synthetic.main.fragment_authentication_two_fa.*
 import javax.inject.Inject
@@ -65,10 +62,8 @@ class TwoFAFragment : Fragment(), TwoFAView {
     }
 
     override fun alertBlankTwoFactorAuthenticationCode() {
-        activity?.let {
-            AnimationHelper.vibrateSmartPhone(it)
-            AnimationHelper.shakeView(text_two_factor_auth)
-        }
+        vibrateSmartPhone()
+        text_two_factor_auth.shake()
     }
 
     override fun alertInvalidTwoFactorAuthenticationCode() = showMessage(getString(R.string.msg_invalid_2fa_code))

app/src/main/java/chat/rocket/android/chatroom/adapter/AudioAttachmentViewHolder.kt

@@ -4,10 +4,13 @@ import android.view.View
 import chat.rocket.android.chatroom.viewmodel.AudioAttachmentViewModel
 import chat.rocket.android.player.PlayerActivity
 import chat.rocket.android.util.extensions.setVisible
+import chat.rocket.android.widget.emoji.EmojiReactionListener
 import kotlinx.android.synthetic.main.message_attachment.view.*
 
-class AudioAttachmentViewHolder(itemView: View, listener: ActionsListener)
-    : BaseViewHolder<AudioAttachmentViewModel>(itemView, listener) {
+class AudioAttachmentViewHolder(itemView: View,
+                                listener: ActionsListener,
+                                reactionListener: EmojiReactionListener? = null)
+    : BaseViewHolder<AudioAttachmentViewModel>(itemView, listener, reactionListener) {
 
     init {
         with(itemView) {

app/src/main/java/chat/rocket/android/chatroom/adapter/BaseViewHolder.kt

@@ -7,16 +7,22 @@ import chat.rocket.android.R
 import chat.rocket.android.chatroom.ui.bottomsheet.BottomSheetMenu
 import chat.rocket.android.chatroom.ui.bottomsheet.adapter.ActionListAdapter
 import chat.rocket.android.chatroom.viewmodel.BaseViewModel
+import chat.rocket.android.widget.emoji.Emoji
+import chat.rocket.android.widget.emoji.EmojiReactionListener
 import chat.rocket.core.model.Message
 import chat.rocket.core.model.isSystemMessage
+import com.google.android.flexbox.FlexDirection
+import com.google.android.flexbox.FlexboxLayoutManager
 import ru.whalemare.sheetmenu.extension.inflate
 import ru.whalemare.sheetmenu.extension.toList
 
+
 abstract class BaseViewHolder<T : BaseViewModel<*>>(
-    itemView: View,
-    private val listener: ActionsListener
+        itemView: View,
+        private val listener: ActionsListener,
+        var reactionListener: EmojiReactionListener? = null
 ) : RecyclerView.ViewHolder(itemView),
-    MenuItem.OnMenuItemClickListener {
+        MenuItem.OnMenuItemClickListener {
     var data: T? = null
 
     init {
@@ -26,6 +32,39 @@ abstract class BaseViewHolder<T : BaseViewModel<*>>(
     fun bind(data: T) {
         this.data = data
         bindViews(data)
+        bindReactions()
+    }
+
+    private fun bindReactions() {
+        data?.let {
+            val recyclerView = itemView.findViewById(R.id.recycler_view_reactions) as RecyclerView
+            val adapter: MessageReactionsAdapter
+            if (recyclerView.adapter == null) {
+                adapter = MessageReactionsAdapter()
+            } else {
+                adapter = recyclerView.adapter as MessageReactionsAdapter
+                adapter.clear()
+            }
+
+            if (it.nextDownStreamMessage == null) {
+                adapter.listener = object : EmojiReactionListener {
+                    override fun onReactionTouched(messageId: String, emojiShortname: String) {
+                        reactionListener?.onReactionTouched(messageId, emojiShortname)
+                    }
+
+                    override fun onReactionAdded(messageId: String, emoji: Emoji) {
+                        if (!adapter.contains(emoji.shortname)) {
+                            reactionListener?.onReactionAdded(messageId, emoji)
+                        }
+                    }
+                }
+                val context = itemView.context
+                val manager = FlexboxLayoutManager(context, FlexDirection.ROW)
+                recyclerView.layoutManager = manager
+                recyclerView.adapter = adapter
+                adapter.addReactions(it.reactions.filterNot { it.unicode.startsWith(":") })
+            }
+        }
     }
 
     abstract fun bindViews(data: T)

app/src/main/java/chat/rocket/android/chatroom/adapter/ChatRoomAdapter.kt

@@ -7,15 +7,18 @@ import chat.rocket.android.R
 import chat.rocket.android.chatroom.presentation.ChatRoomPresenter
 import chat.rocket.android.chatroom.viewmodel.*
 import chat.rocket.android.util.extensions.inflate
+import chat.rocket.android.widget.emoji.EmojiReactionListener
 import chat.rocket.core.model.Message
+import chat.rocket.core.model.isSystemMessage
 import timber.log.Timber
 import java.security.InvalidParameterException
 
 class ChatRoomAdapter(
-    private val roomType: String,
-    private val roomName: String,
-    private val presenter: ChatRoomPresenter?,
-    private val enableActions: Boolean = true
+        private val roomType: String,
+        private val roomName: String,
+        private val presenter: ChatRoomPresenter?,
+        private val enableActions: Boolean = true,
+        private val reactionListener: EmojiReactionListener? = null
 ) : RecyclerView.Adapter<BaseViewHolder<*>>() {
 
     private val dataSet = ArrayList<BaseViewModel<*>>()
@@ -25,26 +28,26 @@ class ChatRoomAdapter(
     }
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): BaseViewHolder<*> {
-        return when(viewType.toViewType()) {
+        return when (viewType.toViewType()) {
             BaseViewModel.ViewType.MESSAGE -> {
                 val view = parent.inflate(R.layout.item_message)
-                MessageViewHolder(view, actionsListener)
+                MessageViewHolder(view, actionsListener, reactionListener)
             }
             BaseViewModel.ViewType.IMAGE_ATTACHMENT -> {
                 val view = parent.inflate(R.layout.message_attachment)
-                ImageAttachmentViewHolder(view, actionsListener)
+                ImageAttachmentViewHolder(view, actionsListener, reactionListener)
             }
             BaseViewModel.ViewType.AUDIO_ATTACHMENT -> {
                 val view = parent.inflate(R.layout.message_attachment)
-                AudioAttachmentViewHolder(view, actionsListener)
+                AudioAttachmentViewHolder(view, actionsListener, reactionListener)
             }
             BaseViewModel.ViewType.VIDEO_ATTACHMENT -> {
                 val view = parent.inflate(R.layout.message_attachment)
-                VideoAttachmentViewHolder(view, actionsListener)
+                VideoAttachmentViewHolder(view, actionsListener, reactionListener)
             }
             BaseViewModel.ViewType.URL_PREVIEW -> {
                 val view = parent.inflate(R.layout.message_url_preview)
-                UrlPreviewViewHolder(view, actionsListener)
+                UrlPreviewViewHolder(view, actionsListener, reactionListener)
             }
             else -> {
                 throw InvalidParameterException("TODO - implement for ${viewType.toViewType()}")
@@ -61,6 +64,23 @@ class ChatRoomAdapter(
     }
 
     override fun onBindViewHolder(holder: BaseViewHolder<*>, position: Int) {
+        if (holder !is MessageViewHolder) {
+            if (position + 1 < itemCount) {
+                val messageAbove = dataSet[position + 1]
+                if (messageAbove.messageId == dataSet[position].messageId) {
+                    messageAbove.nextDownStreamMessage = dataSet[position]
+                }
+            }
+        } else {
+            if (position == 0) {
+                dataSet[0].nextDownStreamMessage = null
+            } else if (position - 1 > 0) {
+                if (dataSet[position - 1].messageId != dataSet[position].messageId) {
+                    dataSet[position].nextDownStreamMessage = null
+                }
+            }
+        }
+
         when (holder) {
             is MessageViewHolder -> holder.bind(dataSet[position] as MessageViewModel)
             is ImageAttachmentViewHolder -> holder.bind(dataSet[position] as ImageAttachmentViewModel)
@@ -86,16 +106,32 @@ class ChatRoomAdapter(
     }
 
     fun prependData(dataSet: List<BaseViewModel<*>>) {
-        this.dataSet.addAll(0, dataSet)
-        notifyItemRangeInserted(0, dataSet.size)
+        val item = dataSet.firstOrNull { newItem ->
+            this.dataSet.indexOfFirst { it.messageId == newItem.messageId && it.viewType == newItem.viewType } > -1
+        }
+        if (item == null) {
+            this.dataSet.addAll(0, dataSet)
+            notifyItemRangeInserted(0, dataSet.size)
+        }
     }
 
     fun updateItem(message: BaseViewModel<*>) {
-        val index = dataSet.indexOfLast { it.messageId == message.messageId }
+        var index = dataSet.indexOfLast { it.messageId == message.messageId }
+        val indexOfFirst = dataSet.indexOfFirst { it.messageId == message.messageId }
         Timber.d("index: $index")
         if (index > -1) {
+            message.nextDownStreamMessage = dataSet[index].nextDownStreamMessage
             dataSet[index] = message
             notifyItemChanged(index)
+            while (dataSet[index].nextDownStreamMessage != null) {
+                dataSet[index].nextDownStreamMessage!!.reactions = message.reactions
+                notifyItemChanged(--index)
+            }
+            // Delete message only if current is a system message update, i.e.: Message Removed
+            if (message.message.isSystemMessage() && indexOfFirst > -1 && indexOfFirst != index) {
+                dataSet.removeAt(indexOfFirst)
+                notifyItemRemoved(indexOfFirst)
+            }
         }
     }
 
@@ -131,6 +167,7 @@ class ChatRoomAdapter(
                             }
                         }
                     }
+                    R.id.action_menu_msg_react -> presenter?.showReactions(id)
                     else -> TODO("Not implemented")
                 }
             }

app/src/main/java/chat/rocket/android/chatroom/adapter/ImageAttachmentViewHolder.kt

@@ -2,11 +2,14 @@ package chat.rocket.android.chatroom.adapter
 
 import android.view.View
 import chat.rocket.android.chatroom.viewmodel.ImageAttachmentViewModel
+import chat.rocket.android.widget.emoji.EmojiReactionListener
 import com.stfalcon.frescoimageviewer.ImageViewer
 import kotlinx.android.synthetic.main.message_attachment.view.*
 
-class ImageAttachmentViewHolder(itemView: View, listener: ActionsListener)
-    : BaseViewHolder<ImageAttachmentViewModel>(itemView, listener) {
+class ImageAttachmentViewHolder(itemView: View,
+                                listener: ActionsListener,
+                                reactionListener: EmojiReactionListener? = null)
+    : BaseViewHolder<ImageAttachmentViewModel>(itemView, listener, reactionListener) {
 
     init {
         with(itemView) {

app/src/main/java/chat/rocket/android/chatroom/adapter/MessageReactionsAdapter.kt

+package chat.rocket.android.chatroom.adapter
+
+import android.support.v7.widget.RecyclerView
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import android.widget.ImageView
+import android.widget.TextView
+import chat.rocket.android.R
+import chat.rocket.android.chatroom.viewmodel.ReactionViewModel
+import chat.rocket.android.dagger.DaggerLocalComponent
+import chat.rocket.android.infrastructure.LocalRepository
+import chat.rocket.android.widget.emoji.Emoji
+import chat.rocket.android.widget.emoji.EmojiListenerAdapter
+import chat.rocket.android.widget.emoji.EmojiPickerPopup
+import chat.rocket.android.widget.emoji.EmojiReactionListener
+import java.util.concurrent.CopyOnWriteArrayList
+import javax.inject.Inject
+
+class MessageReactionsAdapter : RecyclerView.Adapter<RecyclerView.ViewHolder>() {
+    companion object {
+        private const val REACTION_VIEW_TYPE = 0
+        private const val ADD_REACTION_VIEW_TYPE = 1
+    }
+
+    private val reactions = CopyOnWriteArrayList<ReactionViewModel>()
+    var listener: EmojiReactionListener? = null
+
+    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {
+        val inflater = LayoutInflater.from(parent.context)
+        val view: View
+        return when (viewType) {
+            ADD_REACTION_VIEW_TYPE -> {
+                view = inflater.inflate(R.layout.item_add_reaction, parent, false)
+                AddReactionViewHolder(view, listener)
+            }
+            else -> {
+                view = inflater.inflate(R.layout.item_reaction, parent, false)
+                SingleReactionViewHolder(view, listener)
+            }
+        }
+    }
+
+    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
+        if (holder is SingleReactionViewHolder) {
+            holder.bind(reactions[position])
+        } else {
+            holder as AddReactionViewHolder
+            holder.bind(reactions[0].messageId)
+        }
+    }
+
+    override fun getItemCount() = if (reactions.isEmpty()) 0 else reactions.size + 1
+
+    override fun getItemViewType(position: Int): Int {
+        if (position == reactions.size) {
+            return ADD_REACTION_VIEW_TYPE
+        }
+        return REACTION_VIEW_TYPE
+    }
+
+    fun addReactions(reactions: List<ReactionViewModel>) {
+        this.reactions.clear()
+        this.reactions.addAllAbsent(reactions)
+        notifyItemRangeInserted(0, reactions.size)
+    }
+
+    fun clear() {
+        val oldSize = reactions.size
+        reactions.clear()
+        notifyItemRangeRemoved(0, oldSize)
+    }
+
+    fun contains(reactionShortname: String) =
+            reactions.firstOrNull { it.shortname ==  reactionShortname} != null
+
+    class SingleReactionViewHolder(view: View,
+                                   private val listener: EmojiReactionListener?)
+        : RecyclerView.ViewHolder(view), View.OnClickListener {
+        @Inject lateinit var localRepository: LocalRepository
+        @Volatile lateinit var reaction: ReactionViewModel
+        @Volatile
+        var clickHandled = false
+
+        init {
+            DaggerLocalComponent.builder()
+                    .context(itemView.context)
+                    .build()
+                    .inject(this)
+        }
+
+        fun bind(reaction: ReactionViewModel) {
+            clickHandled = false
+            this.reaction = reaction
+            with(itemView) {
+                val emojiTextView = findViewById<TextView>(R.id.text_emoji)
+                val countTextView = findViewById<TextView>(R.id.text_count)
+                emojiTextView.text = reaction.unicode
+                countTextView.text = reaction.count.toString()
+                val myself = localRepository.get(LocalRepository.USERNAME_KEY)
+                if (reaction.usernames.contains(myself)) {
+                    val context = itemView.context
+                    val resources = context.resources
+                    countTextView.setTextColor(resources.getColor(R.color.colorAccent))
+                }
+
+                emojiTextView.setOnClickListener(this@SingleReactionViewHolder)
+                countTextView.setOnClickListener(this@SingleReactionViewHolder)
+            }
+        }
+
+        override fun onClick(v: View?) {
+            synchronized(this) {
+                if (!clickHandled) {
+                    clickHandled = true
+                    listener?.onReactionTouched(reaction.messageId, reaction.shortname)
+                }
+            }
+        }
+    }
+
+    class AddReactionViewHolder(view: View,
+                                private val listener: EmojiReactionListener?) : RecyclerView.ViewHolder(view) {
+        fun bind(messageId: String) {
+            itemView as ImageView
+            itemView.setOnClickListener {
+                val emojiPickerPopup = EmojiPickerPopup(itemView.context)
+                emojiPickerPopup.listener = object : EmojiListenerAdapter() {
+                    override fun onEmojiAdded(emoji: Emoji) {
+                        listener?.onReactionAdded(messageId, emoji)
+                    }
+                }
+                emojiPickerPopup.show()
+            }
+        }
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/adapter/MessageViewHolder.kt

@@ -3,13 +3,15 @@ package chat.rocket.android.chatroom.adapter
 import android.text.method.LinkMovementMethod
 import android.view.View
 import chat.rocket.android.chatroom.viewmodel.MessageViewModel
+import chat.rocket.android.widget.emoji.EmojiReactionListener
 import kotlinx.android.synthetic.main.avatar.view.*
 import kotlinx.android.synthetic.main.item_message.view.*
 
 class MessageViewHolder(
     itemView: View,
-    listener: ActionsListener
-) : BaseViewHolder<MessageViewModel>(itemView, listener) {
+    listener: ActionsListener,
+    reactionListener: EmojiReactionListener? = null
+) : BaseViewHolder<MessageViewModel>(itemView, listener, reactionListener) {
 
     init {
         with(itemView) {
@@ -20,6 +22,9 @@ class MessageViewHolder(
 
     override fun bindViews(data: MessageViewModel) {
         with(itemView) {
+            if (data.isFirstUnread) new_messages_notif.visibility = View.VISIBLE
+            else new_messages_notif.visibility = View.GONE
+
             text_message_time.text = data.time
             text_sender.text = data.senderName
             text_content.text = data.content

app/src/main/java/chat/rocket/android/chatroom/adapter/UrlPreviewViewHolder.kt

@@ -6,10 +6,13 @@ import android.view.View
 import chat.rocket.android.chatroom.viewmodel.UrlPreviewViewModel
 import chat.rocket.android.util.extensions.content
 import chat.rocket.android.util.extensions.setVisible
+import chat.rocket.android.widget.emoji.EmojiReactionListener
 import kotlinx.android.synthetic.main.message_url_preview.view.*
 
-class UrlPreviewViewHolder(itemView: View, listener: ActionsListener)
-    : BaseViewHolder<UrlPreviewViewModel>(itemView, listener) {
+class UrlPreviewViewHolder(itemView: View,
+                           listener: ActionsListener,
+                           reactionListener: EmojiReactionListener? = null)
+    : BaseViewHolder<UrlPreviewViewModel>(itemView, listener, reactionListener) {
 
     init {
         with(itemView) {

app/src/main/java/chat/rocket/android/chatroom/adapter/VideoAttachmentViewHolder.kt

@@ -4,10 +4,13 @@ import android.view.View
 import chat.rocket.android.chatroom.viewmodel.VideoAttachmentViewModel
 import chat.rocket.android.player.PlayerActivity
 import chat.rocket.android.util.extensions.setVisible
+import chat.rocket.android.widget.emoji.EmojiReactionListener
 import kotlinx.android.synthetic.main.message_attachment.view.*
 
-class VideoAttachmentViewHolder(itemView: View, listener: ActionsListener)
-    : BaseViewHolder<VideoAttachmentViewModel>(itemView, listener) {
+class VideoAttachmentViewHolder(itemView: View,
+                                listener: ActionsListener,
+                                reactionListener: EmojiReactionListener? = null)
+    : BaseViewHolder<VideoAttachmentViewModel>(itemView, listener, reactionListener) {
 
     init {
         with(itemView) {

app/src/main/java/chat/rocket/android/chatroom/presentation/ChatRoomPresenter.kt

@@ -6,8 +6,8 @@ import chat.rocket.android.chatroom.adapter.AutoCompleteType
 import chat.rocket.android.chatroom.adapter.PEOPLE
 import chat.rocket.android.chatroom.adapter.ROOMS
 import chat.rocket.android.chatroom.domain.UriInteractor
-import chat.rocket.android.chatroom.viewmodel.PeopleViewModel
 import chat.rocket.android.chatroom.viewmodel.ChatRoomViewModel
+import chat.rocket.android.chatroom.viewmodel.PeopleViewModel
 import chat.rocket.android.chatroom.viewmodel.ViewModelMapper
 import chat.rocket.android.core.lifecycle.CancelStrategy
 import chat.rocket.android.helper.UrlHelper
@@ -458,6 +458,23 @@ class ChatRoomPresenter @Inject constructor(private val view: ChatRoomView,
         }
     }
 
+    /**
+     * Send an emoji reaction to a message.
+     */
+    fun react(messageId: String, emoji: String) {
+        launchUI(strategy) {
+            try {
+                client.toggleReaction(messageId, emoji.removeSurrounding(":"))
+            } catch (ex: RocketChatException) {
+                Timber.e(ex)
+            }
+        }
+    }
+
+    fun showReactions(messageId: String) {
+        view.showReactionsPopup(messageId)
+    }
+
     private fun updateMessage(streamedMessage: Message) {
         launchUI(strategy) {
             val viewModelStreamedMessage = mapper.map(streamedMessage)

app/src/main/java/chat/rocket/android/chatroom/presentation/ChatRoomView.kt

@@ -104,4 +104,5 @@ interface ChatRoomView : LoadingView, MessageView {
     fun showConnectionState(state: State)
     fun populateMembers(members: List<PeopleViewModel>)
     fun populateRooms(chatRooms: List<ChatRoomViewModel>)
+    fun showReactionsPopup(messageId: String)
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/ui/ChatRoomActivity.kt

@@ -20,14 +20,16 @@ import dagger.android.DispatchingAndroidInjector
 import dagger.android.support.HasSupportFragmentInjector
 import kotlinx.android.synthetic.main.app_bar_chat_room.*
 import javax.inject.Inject
+import timber.log.Timber
 
 
-fun Context.chatRoomIntent(chatRoomId: String, chatRoomName: String, chatRoomType: String, isChatRoomReadOnly: Boolean): Intent {
+fun Context.chatRoomIntent(chatRoomId: String, chatRoomName: String, chatRoomType: String, isChatRoomReadOnly: Boolean, chatRoomLastSeen: Long): Intent {
     return Intent(this, ChatRoomActivity::class.java).apply {
         putExtra(INTENT_CHAT_ROOM_ID, chatRoomId)
         putExtra(INTENT_CHAT_ROOM_NAME, chatRoomName)
         putExtra(INTENT_CHAT_ROOM_TYPE, chatRoomType)
         putExtra(INTENT_IS_CHAT_ROOM_READ_ONLY, isChatRoomReadOnly)
+        putExtra(INTENT_CHAT_ROOM_LAST_SEEN, chatRoomLastSeen)
     }
 }
 
@@ -35,6 +37,7 @@ private const val INTENT_CHAT_ROOM_ID = "chat_room_id"
 private const val INTENT_CHAT_ROOM_NAME = "chat_room_name"
 private const val INTENT_CHAT_ROOM_TYPE = "chat_room_type"
 private const val INTENT_IS_CHAT_ROOM_READ_ONLY = "is_chat_room_read_only"
+private const val INTENT_CHAT_ROOM_LAST_SEEN = "chat_room_last_seen"
 
 class ChatRoomActivity : AppCompatActivity(), HasSupportFragmentInjector {
     @Inject lateinit var fragmentDispatchingAndroidInjector: DispatchingAndroidInjector<Fragment>
@@ -47,6 +50,7 @@ class ChatRoomActivity : AppCompatActivity(), HasSupportFragmentInjector {
     private lateinit var chatRoomName: String
     private lateinit var chatRoomType: String
     private var isChatRoomReadOnly: Boolean = false
+    private var chatRoomLastSeen: Long = -1L
 
     override fun onCreate(savedInstanceState: Bundle?) {
         AndroidInjection.inject(this)
@@ -70,8 +74,10 @@ class ChatRoomActivity : AppCompatActivity(), HasSupportFragmentInjector {
 
         setupToolbar()
 
+        chatRoomLastSeen = intent.getLongExtra(INTENT_CHAT_ROOM_LAST_SEEN, -1)
+
         addFragment("ChatRoomFragment", R.id.fragment_container) {
-            newInstance(chatRoomId, chatRoomName, chatRoomType, isChatRoomReadOnly)
+            newInstance(chatRoomId, chatRoomName, chatRoomType, isChatRoomReadOnly, chatRoomLastSeen)
         }
     }
 

app/src/main/java/chat/rocket/android/chatroom/ui/ChatRoomFragment.kt

@@ -23,15 +23,13 @@ import chat.rocket.android.chatroom.presentation.ChatRoomPresenter
 import chat.rocket.android.chatroom.presentation.ChatRoomView
 import chat.rocket.android.chatroom.viewmodel.BaseViewModel
 import chat.rocket.android.chatroom.viewmodel.ChatRoomViewModel
+import chat.rocket.android.chatroom.viewmodel.MessageViewModel
 import chat.rocket.android.chatroom.viewmodel.PeopleViewModel
 import chat.rocket.android.helper.EndlessRecyclerViewScrollListener
 import chat.rocket.android.helper.KeyboardHelper
 import chat.rocket.android.helper.MessageParser
 import chat.rocket.android.util.extensions.*
-import chat.rocket.android.widget.emoji.ComposerEditText
-import chat.rocket.android.widget.emoji.Emoji
-import chat.rocket.android.widget.emoji.EmojiKeyboardPopup
-import chat.rocket.android.widget.emoji.EmojiParser
+import chat.rocket.android.widget.emoji.*
 import chat.rocket.core.internal.realtime.State
 import dagger.android.support.AndroidSupportInjection
 import io.reactivex.disposables.CompositeDisposable
@@ -42,13 +40,14 @@ import kotlinx.android.synthetic.main.message_list.*
 import timber.log.Timber
 import javax.inject.Inject
 
-fun newInstance(chatRoomId: String, chatRoomName: String, chatRoomType: String, isChatRoomReadOnly: Boolean): Fragment {
+fun newInstance(chatRoomId: String, chatRoomName: String, chatRoomType: String, isChatRoomReadOnly: Boolean, chatRoomLastSeen: Long): Fragment {
     return ChatRoomFragment().apply {
         arguments = Bundle(1).apply {
             putString(BUNDLE_CHAT_ROOM_ID, chatRoomId)
             putString(BUNDLE_CHAT_ROOM_NAME, chatRoomName)
             putString(BUNDLE_CHAT_ROOM_TYPE, chatRoomType)
             putBoolean(BUNDLE_IS_CHAT_ROOM_READ_ONLY, isChatRoomReadOnly)
+            putLong(BUNDLE_CHAT_ROOM_LAST_SEEN, chatRoomLastSeen)
         }
     }
 }
@@ -58,19 +57,18 @@ private const val BUNDLE_CHAT_ROOM_NAME = "chat_room_name"
 private const val BUNDLE_CHAT_ROOM_TYPE = "chat_room_type"
 private const val BUNDLE_IS_CHAT_ROOM_READ_ONLY = "is_chat_room_read_only"
 private const val REQUEST_CODE_FOR_PERFORM_SAF = 42
+private const val BUNDLE_CHAT_ROOM_LAST_SEEN = "chat_room_last_seen"
 
-class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardPopup.Listener {
+class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardListener, EmojiReactionListener {
     @Inject lateinit var presenter: ChatRoomPresenter
     @Inject lateinit var parser: MessageParser
     private lateinit var adapter: ChatRoomAdapter
-
     private lateinit var chatRoomId: String
     private lateinit var chatRoomName: String
     private lateinit var chatRoomType: String
     private var isChatRoomReadOnly: Boolean = false
-
     private lateinit var emojiKeyboardPopup: EmojiKeyboardPopup
-
+    private var chatRoomLastSeen: Long = -1
     private lateinit var actionSnackbar: ActionSnackbar
     private var citation: String? = null
     private var editingMessageId: String? = null
@@ -95,6 +93,7 @@ class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardPopup.Listener {
             chatRoomName = bundle.getString(BUNDLE_CHAT_ROOM_NAME)
             chatRoomType = bundle.getString(BUNDLE_CHAT_ROOM_TYPE)
             isChatRoomReadOnly = bundle.getBoolean(BUNDLE_IS_CHAT_ROOM_READ_ONLY)
+            chatRoomLastSeen = bundle.getLong(BUNDLE_CHAT_ROOM_LAST_SEEN)
         } else {
             requireNotNull(bundle) { "no arguments supplied when the fragment was instantiated" }
         }
@@ -159,9 +158,31 @@ class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardPopup.Listener {
     }
 
     override fun showMessages(dataSet: List<BaseViewModel<*>>) {
+        // track the message sent immediately after the current message
+        var prevMessageViewModel: MessageViewModel? = null
+
+        // Loop over received messages to determine first unread
+        for (i in dataSet.indices) {
+            val msgModel = dataSet[i]
+
+            if (msgModel is MessageViewModel) {
+                val msg = msgModel.rawData
+                if (msg.timestamp < chatRoomLastSeen) {
+                    // This message was sent before the last seen of the room. Hence, it was seen.
+                    // if there is a message after (below) this, mark it firstUnread.
+                    if (prevMessageViewModel != null) {
+                        prevMessageViewModel.isFirstUnread = true
+                    }
+                    break
+                }
+                prevMessageViewModel = msgModel
+            }
+        }
+
         activity?.apply {
             if (recycler_view.adapter == null) {
-                adapter = ChatRoomAdapter(chatRoomType, chatRoomName, presenter)
+                adapter = ChatRoomAdapter(chatRoomType, chatRoomName, presenter,
+                        reactionListener = this@ChatRoomFragment)
                 recycler_view.adapter = adapter
                 val linearLayoutManager = LinearLayoutManager(context, LinearLayoutManager.VERTICAL, true)
                 linearLayoutManager.stackFromEnd = true
@@ -178,6 +199,7 @@ class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardPopup.Listener {
 
             val oldMessagesCount = adapter.itemCount
             adapter.appendData(dataSet)
+            recycler_view.scrollToPosition(92)
             if (oldMessagesCount == 0 && dataSet.isNotEmpty()) {
                 recycler_view.scrollToPosition(0)
             }
@@ -222,6 +244,9 @@ class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardPopup.Listener {
 
     override fun dispatchUpdateMessage(index: Int, message: List<BaseViewModel<*>>) {
         adapter.updateItem(message.last())
+        if (message.size > 1) {
+            adapter.prependData(listOf(message.first()))
+        }
     }
 
     override fun dispatchDeleteMessage(msgId: String) {
@@ -296,6 +321,26 @@ class ChatRoomFragment : Fragment(), ChatRoomView, EmojiKeyboardPopup.Listener {
         }
     }
 
+    override fun onReactionTouched(messageId: String, emojiShortname: String) {
+        presenter.react(messageId, emojiShortname)
+    }
+
+    override fun onReactionAdded(messageId: String, emoji: Emoji) {
+        presenter.react(messageId, emoji.shortname)
+    }
+
+    override fun showReactionsPopup(messageId: String) {
+        context?.let {
+            val emojiPickerPopup = EmojiPickerPopup(it)
+            emojiPickerPopup.listener = object : EmojiListenerAdapter() {
+                override fun onEmojiAdded(emoji: Emoji) {
+                    onReactionAdded(messageId, emoji)
+                }
+            }
+            emojiPickerPopup.show()
+        }
+    }
+
     private fun setReactionButtonIcon(@DrawableRes drawableId: Int) {
         button_add_reaction.setImageResource(drawableId)
         button_add_reaction.setTag(drawableId)

app/src/main/java/chat/rocket/android/chatroom/viewmodel/AudioAttachmentViewModel.kt

@@ -10,8 +10,10 @@ data class AudioAttachmentViewModel(
         override val messageId: String,
         override val attachmentUrl: String,
         override val attachmentTitle: CharSequence,
-        override val id: Long
-) : BaseFileAttachmentViewModel<AudioAttachment> {
+        override val id: Long,
+        override var reactions: List<ReactionViewModel>,
+        override var nextDownStreamMessage: BaseViewModel<*>? = null
+        ) : BaseFileAttachmentViewModel<AudioAttachment> {
     override val viewType: Int
         get() = BaseViewModel.ViewType.AUDIO_ATTACHMENT.viewType
     override val layoutId: Int

app/src/main/java/chat/rocket/android/chatroom/viewmodel/BaseViewModel.kt

@@ -9,6 +9,8 @@ interface BaseViewModel<out T> {
     val messageId: String
     val viewType: Int
     val layoutId: Int
+    var reactions: List<ReactionViewModel>
+    var nextDownStreamMessage: BaseViewModel<*>?
 
     enum class ViewType(val viewType: Int) {
         MESSAGE(0),

app/src/main/java/chat/rocket/android/chatroom/viewmodel/ImageAttachmentViewModel.kt

@@ -10,7 +10,9 @@ data class ImageAttachmentViewModel(
         override val messageId: String,
         override val attachmentUrl: String,
         override val attachmentTitle: CharSequence,
-        override val id: Long
+        override val id: Long,
+        override var reactions: List<ReactionViewModel>,
+        override var nextDownStreamMessage: BaseViewModel<*>? = null
 ) : BaseFileAttachmentViewModel<ImageAttachment> {
     override val viewType: Int
         get() = BaseViewModel.ViewType.IMAGE_ATTACHMENT.viewType

app/src/main/java/chat/rocket/android/chatroom/viewmodel/MessageViewModel.kt

@@ -11,7 +11,10 @@ data class MessageViewModel(
         override val time: CharSequence,
         override val senderName: CharSequence,
         override val content: CharSequence,
-        override val isPinned: Boolean
+        override val isPinned: Boolean,
+        override var reactions: List<ReactionViewModel>,
+        override var nextDownStreamMessage: BaseViewModel<*>? = null,
+        var isFirstUnread: Boolean
 ) : BaseMessageViewModel<Message> {
     override val viewType: Int
         get() = BaseViewModel.ViewType.MESSAGE.viewType

app/src/main/java/chat/rocket/android/chatroom/viewmodel/ReactionViewModel.kt

+package chat.rocket.android.chatroom.viewmodel
+
+data class ReactionViewModel(
+        val messageId: String,
+        val shortname: String,
+        val unicode: CharSequence,
+        val count: Int,
+        val usernames: List<String> = emptyList()
+)
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/viewmodel/UrlPreviewViewModel.kt

@@ -5,13 +5,15 @@ import chat.rocket.core.model.Message
 import chat.rocket.core.model.url.Url
 
 data class UrlPreviewViewModel(
-    override val message: Message,
-    override val rawData: Url,
-    override val messageId: String,
-    val title: CharSequence?,
-    val hostname: String,
-    val description: CharSequence?,
-    val thumbUrl: String?
+        override val message: Message,
+        override val rawData: Url,
+        override val messageId: String,
+        val title: CharSequence?,
+        val hostname: String,
+        val description: CharSequence?,
+        val thumbUrl: String?,
+        override var reactions: List<ReactionViewModel>,
+        override var nextDownStreamMessage: BaseViewModel<*>? = null
 ) : BaseViewModel<Url> {
     override val viewType: Int
         get() = BaseViewModel.ViewType.URL_PREVIEW.viewType

app/src/main/java/chat/rocket/android/chatroom/viewmodel/VideoAttachmentViewModel.kt

@@ -10,7 +10,9 @@ data class VideoAttachmentViewModel(
         override val messageId: String,
         override val attachmentUrl: String,
         override val attachmentTitle: CharSequence,
-        override val id: Long
+        override val id: Long,
+        override var reactions: List<ReactionViewModel>,
+        override var nextDownStreamMessage: BaseViewModel<*>? = null
 ) : BaseFileAttachmentViewModel<VideoAttachment> {
     override val viewType: Int
         get() = BaseViewModel.ViewType.VIDEO_ATTACHMENT.viewType

app/src/main/java/chat/rocket/android/chatroom/viewmodel/ViewModelMapper.kt

@@ -14,6 +14,7 @@ import chat.rocket.android.helper.MessageParser
 import chat.rocket.android.helper.UrlHelper
 import chat.rocket.android.infrastructure.LocalRepository
 import chat.rocket.android.server.domain.*
+import chat.rocket.android.widget.emoji.EmojiParser
 import chat.rocket.core.TokenRepository
 import chat.rocket.core.model.Message
 import chat.rocket.core.model.MessageType
@@ -83,7 +84,8 @@ class ViewModelMapper @Inject constructor(private val context: Context,
         val title = url.meta?.title
         val description = url.meta?.description
 
-        return UrlPreviewViewModel(message, url, message.id, title, hostname, description, thumb)
+        return UrlPreviewViewModel(message, url, message.id, title, hostname, description, thumb,
+                getReactions(message))
     }
 
     private fun mapAttachment(message: Message, attachment: Attachment): BaseViewModel<*>? {
@@ -99,11 +101,11 @@ class ViewModelMapper @Inject constructor(private val context: Context,
         val id = "${message.id}_${attachment.titleLink}".hashCode().toLong()
         return when (attachment) {
             is ImageAttachment -> ImageAttachmentViewModel(message, attachment, message.id,
-                    attachmentUrl, attachmentTitle ?: "", id)
+                    attachmentUrl, attachmentTitle ?: "", id, getReactions(message))
             is VideoAttachment -> VideoAttachmentViewModel(message, attachment, message.id,
-                    attachmentUrl, attachmentTitle ?: "", id)
+                    attachmentUrl, attachmentTitle ?: "", id, getReactions(message))
             is AudioAttachment -> AudioAttachmentViewModel(message, attachment, message.id,
-                    attachmentUrl, attachmentTitle ?: "", id)
+                    attachmentUrl, attachmentTitle ?: "", id, getReactions(message))
             else -> null
         }
     }
@@ -138,16 +140,45 @@ class ViewModelMapper @Inject constructor(private val context: Context,
                     val quoteUrl = HttpUrl.parse(url.url)
                     val serverUrl = HttpUrl.parse(baseUrl)
                     if (quoteUrl != null && serverUrl != null) {
-                        quote = makeQuote(quoteUrl, serverUrl)
+                        quote = makeQuote(quoteUrl, serverUrl)?.let {
+                            getMessageWithoutQuoteMarkdown(it)
+                        }
                     }
                 }
             }
         }
 
-        val content = getContent(context, message, quote)
-        MessageViewModel(message = message, rawData = message, messageId = message.id,
-                avatar = avatar!!, time = time, senderName = sender,
-                content = content, isPinned = message.pinned)
+        val content = getContent(context, getMessageWithoutQuoteMarkdown(message), quote)
+        MessageViewModel(message = getMessageWithoutQuoteMarkdown(message), rawData = message,
+                messageId = message.id, avatar = avatar!!, time = time, senderName = sender,
+                content = content, isPinned = message.pinned, reactions = getReactions(message),
+                isFirstUnread = false)
+    }
+
+    private fun getReactions(message: Message): List<ReactionViewModel> {
+        val reactions = message.reactions?.let {
+            val list = mutableListOf<ReactionViewModel>()
+            it.getShortNames().forEach { shortname ->
+                val usernames = it.getUsernames(shortname) ?: emptyList()
+                val count = usernames.size
+                list.add(
+                        ReactionViewModel(messageId = message.id,
+                                shortname = shortname,
+                                unicode = EmojiParser.parse(shortname),
+                                count = count,
+                                usernames = usernames)
+                )
+            }
+            list
+        }
+        return reactions ?: emptyList()
+    }
+
+    private fun getMessageWithoutQuoteMarkdown(message: Message): Message {
+        val baseUrl = settings.baseUrl()
+        return message.copy(
+                message = message.message.replace("\\[\\s\\]\\($baseUrl.*\\)".toRegex(), "").trim()
+        )
     }
 
     private fun getSenderName(message: Message): CharSequence {
@@ -194,7 +225,7 @@ class ViewModelMapper @Inject constructor(private val context: Context,
         var quoteViewModel: MessageViewModel? = null
         if (quote != null) {
             val quoteMessage: Message = quote
-            quoteViewModel = map(quoteMessage).first { it is MessageViewModel } as MessageViewModel
+            quoteViewModel = mapMessage(quoteMessage)
         }
         return parser.renderMarkdown(message.message, quoteViewModel, currentUsername)
     }

app/src/main/java/chat/rocket/android/chatrooms/di/ChatRoomsFragmentModule.kt

@@ -3,11 +3,9 @@ package chat.rocket.android.chatrooms.di
 import android.arch.lifecycle.LifecycleOwner
 import chat.rocket.android.chatrooms.presentation.ChatRoomsView
 import chat.rocket.android.chatrooms.ui.ChatRoomsFragment
-import chat.rocket.android.core.lifecycle.CancelStrategy
 import chat.rocket.android.dagger.scope.PerFragment
 import dagger.Module
 import dagger.Provides
-import kotlinx.coroutines.experimental.Job
 
 @Module
 @PerFragment
@@ -22,9 +20,4 @@ class ChatRoomsFragmentModule {
     fun provideLifecycleOwner(frag: ChatRoomsFragment): LifecycleOwner {
         return frag
     }
-
-    @Provides
-    fun provideCancelStrategy(owner: LifecycleOwner, jobs: Job): CancelStrategy {
-        return CancelStrategy(owner, jobs)
-    }
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatrooms/di/ChatRoomsModule.kt

-package chat.rocket.android.chatrooms.di
-
-import android.content.Context
-import chat.rocket.android.chatrooms.presentation.ChatRoomsNavigator
-import chat.rocket.android.main.ui.MainActivity
-import chat.rocket.android.dagger.scope.PerActivity
-import dagger.Module
-import dagger.Provides
-
-@Module
-class ChatRoomsModule {
-
-    @Provides
-    @PerActivity
-    fun provideChatRoomsNavigator(activity: MainActivity, context: Context) = ChatRoomsNavigator(activity, context)
-}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatrooms/presentation/ChatRoomsNavigator.kt

-package chat.rocket.android.chatrooms.presentation
-
-import android.content.Context
-import chat.rocket.android.R
-import chat.rocket.android.chatroom.ui.chatRoomIntent
-import chat.rocket.android.main.ui.MainActivity
-
-class ChatRoomsNavigator(private val activity: MainActivity, private val context: Context) {
-
-    fun toChatRoom(chatRoomId: String, chatRoomName: String, chatRoomType: String, isChatRoomReadOnly: Boolean) {
-        activity.startActivity(context.chatRoomIntent(chatRoomId, chatRoomName, chatRoomType, isChatRoomReadOnly))
-        activity.overridePendingTransition(R.anim.open_enter, R.anim.open_exit)
-    }
-}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatrooms/presentation/ChatRoomsPresenter.kt

 package chat.rocket.android.chatrooms.presentation
 
 import chat.rocket.android.core.lifecycle.CancelStrategy
+import chat.rocket.android.main.presentation.MainNavigator
 import chat.rocket.android.server.domain.*
 import chat.rocket.android.server.infraestructure.ConnectionManager
 import chat.rocket.android.server.infraestructure.ConnectionManagerFactory
@@ -24,7 +25,7 @@ import javax.inject.Inject
 
 class ChatRoomsPresenter @Inject constructor(private val view: ChatRoomsView,
                                              private val strategy: CancelStrategy,
-                                             private val navigator: ChatRoomsNavigator,
+                                             private val navigator: MainNavigator,
                                              private val serverInteractor: GetCurrentServerInteractor,
                                              private val getChatRoomsInteractor: GetChatRoomsInteractor,
                                              private val saveChatRoomsInteractor: SaveChatRoomsInteractor,
@@ -68,7 +69,7 @@ class ChatRoomsPresenter @Inject constructor(private val view: ChatRoomsView,
         }
 
         navigator.toChatRoom(chatRoom.id, roomName,
-                chatRoom.type.toString(), chatRoom.readonly ?: false)
+                chatRoom.type.toString(), chatRoom.readonly ?: false, chatRoom.lastSeen ?: -1)
     }
 
     /**

app/src/main/java/chat/rocket/android/dagger/LocalComponent.kt

+package chat.rocket.android.dagger
+
+import android.content.Context
+import chat.rocket.android.chatroom.adapter.MessageReactionsAdapter
+import chat.rocket.android.dagger.module.LocalModule
+import dagger.BindsInstance
+import dagger.Component
+import javax.inject.Singleton
+
+@Singleton
+@Component(modules = [LocalModule::class])
+interface LocalComponent {
+
+    @Component.Builder
+    interface Builder {
+        @BindsInstance
+        fun context(applicationContext: Context): Builder
+
+        fun build(): LocalComponent
+    }
+
+    fun inject(adapter: MessageReactionsAdapter.SingleReactionViewHolder)
+    fun inject(adapter: MessageReactionsAdapter.AddReactionViewHolder)
+
+    /*@Component.Builder
+    abstract class Builder : AndroidInjector.Builder<RocketChatApplication>()*/
+}

app/src/main/java/chat/rocket/android/dagger/module/ActivityBuilder.kt

@@ -11,9 +11,7 @@ import chat.rocket.android.chatroom.di.PinnedMessagesFragmentProvider
 import chat.rocket.android.chatroom.ui.ChatRoomActivity
 import chat.rocket.android.chatroom.ui.PinnedMessagesActivity
 import chat.rocket.android.chatrooms.di.ChatRoomsFragmentProvider
-import chat.rocket.android.chatrooms.di.ChatRoomsModule
 import chat.rocket.android.dagger.scope.PerActivity
-import chat.rocket.android.main.di.MainActivityProvider
 import chat.rocket.android.main.di.MainModule
 import chat.rocket.android.main.ui.MainActivity
 import chat.rocket.android.members.di.MembersFragmentProvider
@@ -37,8 +35,6 @@ abstract class ActivityBuilder {
 
     @PerActivity
     @ContributesAndroidInjector(modules = [MainModule::class,
-        MainActivityProvider::class,
-        ChatRoomsModule::class,
         ChatRoomsFragmentProvider::class,
         ProfileFragmentProvider::class
     ])

app/src/main/java/chat/rocket/android/dagger/module/LocalModule.kt

+package chat.rocket.android.dagger.module
+
+import android.content.Context
+import android.content.SharedPreferences
+import chat.rocket.android.infrastructure.LocalRepository
+import chat.rocket.android.infrastructure.SharedPrefsLocalRepository
+import dagger.Module
+import dagger.Provides
+import javax.inject.Singleton
+
+@Module
+class LocalModule {
+
+    @Provides
+    fun provideSharedPreferences(context: Context): SharedPreferences {
+        return context.getSharedPreferences("rocket.chat", Context.MODE_PRIVATE)
+    }
+
+    @Provides
+    @Singleton
+    fun provideLocalRepository(prefs: SharedPreferences): LocalRepository {
+        return SharedPrefsLocalRepository(prefs)
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/helper/AnimationHelper.kt

-package chat.rocket.android.helper
-
-import android.animation.Animator
-import android.animation.AnimatorListenerAdapter
-import android.animation.AnimatorSet
-import android.animation.ObjectAnimator
-import android.content.Context
-import android.os.Build
-import android.os.VibrationEffect
-import android.os.Vibrator
-import android.view.View
-
-object AnimationHelper {
-
-    /**
-     * Shakes a view.
-     */
-    fun shakeView(viewToShake: View, x: Float = 2F, num: Int = 0) {
-        if (num == 6) {
-            viewToShake.translationX = 0.toFloat()
-            return
-        }
-
-        val animatorSet = AnimatorSet()
-        animatorSet.playTogether(ObjectAnimator.ofFloat(viewToShake, "translationX", dp(viewToShake.context, x)))
-        animatorSet.duration = 50
-        animatorSet.addListener(object : AnimatorListenerAdapter() {
-            override fun onAnimationEnd(animation: Animator) {
-                shakeView(viewToShake, if (num == 5) 0.toFloat() else -x, num + 1)
-            }
-        })
-        animatorSet.start()
-    }
-
-    /**
-     * Vibrates the smart phone.
-     */
-    fun vibrateSmartPhone(context: Context) {
-        val vibrator = context.getSystemService(Context.VIBRATOR_SERVICE) as Vibrator
-        if (Build.VERSION.SDK_INT >= 26) {
-            vibrator.vibrate(VibrationEffect.createOneShot(200, VibrationEffect.DEFAULT_AMPLITUDE))
-        } else {
-            vibrator.vibrate(200)
-        }
-    }
-
-    private fun dp(context: Context, value: Float): Float {
-        val density = context.resources.displayMetrics.density
-        val result = Math.ceil(density.times(value.toDouble()))
-        return result.toFloat()
-    }
-}
\ No newline at end of file

app/src/main/java/chat/rocket/android/helper/MessageParser.kt

@@ -59,6 +59,7 @@ class MessageParser @Inject constructor(val context: Application, private val co
             parentNode.appendChild(quoteNode)
             quoteNode.accept(QuoteMessageSenderVisitor(context, configuration, builder, senderName.length))
             quoteNode = parser.parse("> ${toLenientMarkdown(quote.rawData.message)}")
+            quoteNode.accept(EmojiVisitor(builder))
             quoteNode.accept(QuoteMessageBodyVisitor(context, configuration, builder))
         }
         parentNode.accept(LinkVisitor(builder))

app/src/main/java/chat/rocket/android/helper/UrlHelper.kt

@@ -13,6 +13,17 @@ object UrlHelper {
      */
     fun getAvatarUrl(serverUrl: String, avatarName: String): String = removeTrailingSlash(serverUrl) + "/avatar/" + avatarName
 
+    /**
+     * Returns the CAS URL.
+     *
+     * @param casLoginUrl The CAS login URL from the server settings.
+     * @param serverUrl The server URL.
+     * @param token The token to be send to the CAS server.
+     * @return The avatar URL.
+     */
+    fun getCasUrl(casLoginUrl: String, serverUrl: String, token: String): String =
+        removeTrailingSlash(casLoginUrl) + "?service=" + removeTrailingSlash(serverUrl) + "/_cas/" + token
+
     /**
      * Returns the server's Terms of Service URL.
      *

app/src/main/java/chat/rocket/android/main/di/MainActivityModule.kt

-package chat.rocket.android.main.di
-
-import android.arch.lifecycle.LifecycleOwner
-import chat.rocket.android.core.lifecycle.CancelStrategy
-import chat.rocket.android.main.presentation.MainView
-import chat.rocket.android.main.ui.MainActivity
-import dagger.Module
-import dagger.Provides
-import kotlinx.coroutines.experimental.Job
-
-@Module
-class MainActivityModule {
-
-//    @Provides
-//    fun provideMainView(activity: MainActivity): MainView = activity
-
-    @Provides
-    fun provideLifecycleOwner(activity: MainActivity): LifecycleOwner = activity
-
-    @Provides
-    fun provideCancelStrategy(owner: LifecycleOwner, jobs: Job): CancelStrategy = CancelStrategy(owner, jobs)
-
-}
\ No newline at end of file

app/src/main/java/chat/rocket/android/main/di/MainActivityProvider.kt

-package chat.rocket.android.main.di
-
-import chat.rocket.android.main.ui.MainActivity
-import dagger.Module
-import dagger.android.ContributesAndroidInjector
-
-@Module
-abstract class MainActivityProvider {
-
-    @ContributesAndroidInjector(modules = [MainActivityModule::class])
-    abstract fun provideMainActivity(): MainActivity
-}
\ No newline at end of file

app/src/main/java/chat/rocket/android/main/di/MainModule.kt

 package chat.rocket.android.main.di
 
+import android.arch.lifecycle.LifecycleOwner
 import android.content.Context
+import chat.rocket.android.core.lifecycle.CancelStrategy
 import chat.rocket.android.dagger.scope.PerActivity
 import chat.rocket.android.main.presentation.MainNavigator
+import chat.rocket.android.main.presentation.MainView
 import chat.rocket.android.main.ui.MainActivity
 import dagger.Module
 import dagger.Provides
+import kotlinx.coroutines.experimental.Job
 
 @Module
 class MainModule {
@@ -13,4 +17,13 @@ class MainModule {
     @Provides
     @PerActivity
     fun provideMainNavigator(activity: MainActivity, context: Context) = MainNavigator(activity, context)
+
+    @Provides
+    fun provideMainView(activity: MainActivity): MainView = activity
+
+    @Provides
+    fun provideLifecycleOwner(activity: MainActivity): LifecycleOwner = activity
+
+    @Provides
+    fun provideCancelStrategy(owner: LifecycleOwner, jobs: Job): CancelStrategy = CancelStrategy(owner, jobs)
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/main/presentation/MainNavigator.kt

@@ -2,6 +2,7 @@ package chat.rocket.android.main.presentation
 
 import android.content.Context
 import chat.rocket.android.R
+import chat.rocket.android.chatroom.ui.chatRoomIntent
 import chat.rocket.android.chatrooms.ui.ChatRoomsFragment
 import chat.rocket.android.main.ui.MainActivity
 import chat.rocket.android.profile.ui.ProfileFragment
@@ -27,4 +28,9 @@ class MainNavigator(internal val activity: MainActivity, internal val context: C
             SettingsFragment.newInstance()
         }
     }
+
+    fun toChatRoom(chatRoomId: String, chatRoomName: String, chatRoomType: String, isChatRoomReadOnly: Boolean, chatRoomLastSeen: Long) {
+        activity.startActivity(context.chatRoomIntent(chatRoomId, chatRoomName, chatRoomType, isChatRoomReadOnly, chatRoomLastSeen))
+        activity.overridePendingTransition(R.anim.open_enter, R.anim.open_exit)
+    }
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/main/presentation/MainPresenter.kt

 package chat.rocket.android.main.presentation
 
+import chat.rocket.android.core.lifecycle.CancelStrategy
 import chat.rocket.android.infrastructure.LocalRepository
 import chat.rocket.android.server.domain.GetCurrentServerInteractor
 import chat.rocket.android.server.infraestructure.ConnectionManagerFactory
 import chat.rocket.android.server.infraestructure.RocketChatClientFactory
+import chat.rocket.android.util.extensions.launchUI
 import chat.rocket.common.RocketChatException
+import chat.rocket.common.util.ifNull
 import chat.rocket.core.RocketChatClient
 import chat.rocket.core.internal.realtime.disconnect
+import chat.rocket.core.internal.rest.logout
 import chat.rocket.core.internal.rest.unregisterPushToken
-import timber.log.Timber
 import javax.inject.Inject
 
-class MainPresenter @Inject constructor(private val navigator: MainNavigator,
+class MainPresenter @Inject constructor(private val view: MainView,
+                                        private val strategy: CancelStrategy,
+                                        private val navigator: MainNavigator,
                                         private val serverInteractor: GetCurrentServerInteractor,
                                         private val localRepository: LocalRepository,
                                         managerFactory: ConnectionManagerFactory,
@@ -30,19 +35,21 @@ class MainPresenter @Inject constructor(private val navigator: MainNavigator,
      * Logout from current server.
      */
     fun logout() {
-        // TODO: inject CancelStrategy, and MainView.
-//        launchUI(strategy) {
+        launchUI(strategy) {
             try {
-//                clearTokens()
-//                client.logout()
+                clearTokens()
+                client.logout()
                 //TODO: Add the code to unsubscribe to all subscriptions.
                 client.disconnect()
-//                view.onLogout()
-            } catch (e: RocketChatException) {
-                Timber.e(e)
-//                view.showMessage(e.message!!)
+                view.onLogout()
+            } catch (exception: RocketChatException) {
+                exception.message?.let {
+                    view.showMessage(it)
+                }.ifNull {
+                    view.showGenericErrorMessage()
+                }
             }
-//        }
+        }
     }
 
     private suspend fun clearTokens() {

app/src/main/java/chat/rocket/android/main/ui/MainActivity.kt

 package chat.rocket.android.main.ui
 
+import android.app.Activity
 import android.content.Intent
 import android.os.Bundle
 import android.support.v4.app.Fragment
@@ -7,25 +8,21 @@ import android.support.v7.app.AppCompatActivity
 import android.view.Gravity
 import android.view.MenuItem
 import chat.rocket.android.R
-
-import chat.rocket.android.chatrooms.ui.ChatRoomsFragment
-import chat.rocket.android.profile.ui.ProfileFragment
-import chat.rocket.android.settings.ui.SettingsFragment
-import chat.rocket.android.util.extensions.addFragment
 import chat.rocket.android.authentication.ui.AuthenticationActivity
 import chat.rocket.android.main.presentation.MainPresenter
 import chat.rocket.android.main.presentation.MainView
 import chat.rocket.android.util.extensions.showToast
-
 import dagger.android.AndroidInjection
 import dagger.android.AndroidInjector
 import dagger.android.DispatchingAndroidInjector
+import dagger.android.HasActivityInjector
 import dagger.android.support.HasSupportFragmentInjector
 import kotlinx.android.synthetic.main.activity_main.*
 import kotlinx.android.synthetic.main.app_bar.*
 import javax.inject.Inject
 
-class MainActivity : AppCompatActivity(), MainView, HasSupportFragmentInjector {
+class MainActivity : AppCompatActivity(), MainView, HasActivityInjector, HasSupportFragmentInjector {
+    @Inject lateinit var activityDispatchingAndroidInjector: DispatchingAndroidInjector<Activity>
     @Inject lateinit var fragmentDispatchingAndroidInjector: DispatchingAndroidInjector<Fragment>
     @Inject lateinit var presenter: MainPresenter
     private var isFragmentAdded: Boolean = false
@@ -68,6 +65,8 @@ class MainActivity : AppCompatActivity(), MainView, HasSupportFragmentInjector {
 
     override fun showGenericErrorMessage() = showMessage(getString(R.string.msg_generic_error))
 
+    override fun activityInjector(): AndroidInjector<Activity> = activityDispatchingAndroidInjector
+
     override fun supportFragmentInjector(): AndroidInjector<Fragment> = fragmentDispatchingAndroidInjector
 
     private fun setupToolbar() {

app/src/main/java/chat/rocket/android/members/viewmodel/MemberViewModelMapper.kt

@@ -8,7 +8,7 @@ import chat.rocket.core.model.Value
 import javax.inject.Inject
 
 class MemberViewModelMapper @Inject constructor(serverInteractor: GetCurrentServerInteractor, getSettingsInteractor: GetSettingsInteractor) {
-    private var settings: Map<String, Value<Any>> = getSettingsInteractor.get(serverInteractor.get()!!)!!
+    private var settings: Map<String, Value<Any>> = getSettingsInteractor.get(serverInteractor.get()!!)
     private val baseUrl = settings.baseUrl()
 
     fun mapToViewModelList(memberList: List<User>): List<MemberViewModel> {

app/src/main/java/chat/rocket/android/profile/di/ProfileFragmentModule.kt

 package chat.rocket.android.profile.di
 
 import android.arch.lifecycle.LifecycleOwner
-import chat.rocket.android.core.lifecycle.CancelStrategy
 import chat.rocket.android.dagger.scope.PerFragment
 import chat.rocket.android.profile.presentation.ProfileView
 import chat.rocket.android.profile.ui.ProfileFragment
 import dagger.Module
 import dagger.Provides
-import kotlinx.coroutines.experimental.Job
 
 @Module
 @PerFragment
@@ -22,9 +20,4 @@ class ProfileFragmentModule {
     fun provideLifecycleOwner(frag: ProfileFragment): LifecycleOwner {
         return frag
     }
-
-    @Provides
-    fun provideCancelStrategy(owner: LifecycleOwner, jobs: Job): CancelStrategy {
-        return CancelStrategy(owner, jobs)
-    }
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/server/domain/RefreshSettingsInteractor.kt

@@ -11,13 +11,17 @@ class RefreshSettingsInteractor @Inject constructor(private val factory: RocketC
                                                     private val repository: SettingsRepository) {
 
     private var settingsFilter = arrayOf(
+        LDAP_ENABLE, CAS_ENABLE, CAS_LOGIN_URL,
+
+        ACCOUNT_REGISTRATION, ACCOUNT_LOGIN_FORM, ACCOUNT_PASSWORD_RESET, ACCOUNT_CUSTOM_FIELDS,
+        ACCOUNT_GOOGLE, ACCOUNT_FACEBOOK, ACCOUNT_GITHUB, ACCOUNT_LINKEDIN, ACCOUNT_METEOR,
+        ACCOUNT_TWITTER, ACCOUNT_WORDPRESS, ACCOUNT_GITLAB,
+
         SITE_URL, SITE_NAME, FAVICON_512, USE_REALNAME, ALLOW_ROOM_NAME_SPECIAL_CHARS,
-        FAVORITE_ROOMS, ACCOUNT_LOGIN_FORM, ACCOUNT_GOOGLE, ACCOUNT_FACEBOOK, ACCOUNT_GITHUB,
-        ACCOUNT_GITLAB, ACCOUNT_LINKEDIN, ACCOUNT_METEOR, ACCOUNT_TWITTER, ACCOUNT_WORDPRESS,
-        LDAP_ENABLE, ACCOUNT_REGISTRATION, UPLOAD_STORAGE_TYPE, UPLOAD_MAX_FILE_SIZE,
-        UPLOAD_WHITELIST_MIMETYPES, HIDE_USER_JOIN, HIDE_USER_LEAVE, HIDE_TYPE_AU, HIDE_MUTE_UNMUTE,
-        HIDE_TYPE_RU, ACCOUNT_CUSTOM_FIELDS, ALLOW_MESSAGE_DELETING, ALLOW_MESSAGE_EDITING,
-        ALLOW_MESSAGE_PINNING, SHOW_DELETED_STATUS, SHOW_EDITED_STATUS)
+        FAVORITE_ROOMS, UPLOAD_STORAGE_TYPE, UPLOAD_MAX_FILE_SIZE, UPLOAD_WHITELIST_MIMETYPES,
+        HIDE_USER_JOIN, HIDE_USER_LEAVE,
+        HIDE_TYPE_AU, HIDE_MUTE_UNMUTE, HIDE_TYPE_RU, ALLOW_MESSAGE_DELETING,
+        ALLOW_MESSAGE_EDITING, ALLOW_MESSAGE_PINNING, SHOW_DELETED_STATUS, SHOW_EDITED_STATUS)
 
     suspend fun refresh(server: String) {
         withContext(CommonPool) {

app/src/main/java/chat/rocket/android/server/domain/SettingsRepository.kt

@@ -7,20 +7,25 @@ typealias PublicSettings = Map<String, Value<Any>>
 
 interface SettingsRepository {
     fun save(url: String, settings: PublicSettings)
-    fun get(url: String): PublicSettings?
+    fun get(url: String): PublicSettings
 }
 
+// Authentication methods.
+const val LDAP_ENABLE = "LDAP_Enable"
+const val CAS_ENABLE = "CAS_enabled"
+const val CAS_LOGIN_URL = "CAS_login_url"
+const val ACCOUNT_REGISTRATION = "Accounts_RegistrationForm"
+const val ACCOUNT_LOGIN_FORM = "Accounts_ShowFormLogin"
+const val ACCOUNT_PASSWORD_RESET = "Accounts_PasswordReset"
+const val ACCOUNT_CUSTOM_FIELDS = "Accounts_CustomFields"
+const val ACCOUNT_GOOGLE = "Accounts_OAuth_Google"
 const val ACCOUNT_FACEBOOK = "Accounts_OAuth_Facebook"
 const val ACCOUNT_GITHUB = "Accounts_OAuth_Github"
-const val ACCOUNT_GITLAB = "Accounts_OAuth_Gitlab"
-const val ACCOUNT_GOOGLE = "Accounts_OAuth_Google"
 const val ACCOUNT_LINKEDIN = "Accounts_OAuth_Linkedin"
 const val ACCOUNT_METEOR = "Accounts_OAuth_Meteor"
 const val ACCOUNT_TWITTER = "Accounts_OAuth_Twitter"
 const val ACCOUNT_WORDPRESS = "Accounts_OAuth_Wordpress"
-const val ACCOUNT_REGISTRATION = "Accounts_RegistrationForm"
-const val ACCOUNT_LOGIN_FORM = "Accounts_ShowFormLogin"
-const val ACCOUNT_CUSTOM_FIELDS = "Accounts_CustomFields"
+const val ACCOUNT_GITLAB = "Accounts_OAuth_Gitlab"
 
 const val SITE_URL = "Site_Url"
 const val SITE_NAME = "Site_Name"
@@ -28,7 +33,6 @@ const val FAVICON_512 = "Assets_favicon_512"
 const val USE_REALNAME = "UI_Use_Real_Name"
 const val ALLOW_ROOM_NAME_SPECIAL_CHARS = "UI_Allow_room_names_with_special_chars"
 const val FAVORITE_ROOMS = "Favorite_Rooms"
-const val LDAP_ENABLE = "LDAP_Enable"
 const val UPLOAD_STORAGE_TYPE = "FileUpload_Storage_Type"
 const val UPLOAD_MAX_FILE_SIZE = "FileUpload_MaxFileSize"
 const val UPLOAD_WHITELIST_MIMETYPES = "FileUpload_MediaTypeWhiteList"
@@ -42,23 +46,29 @@ const val ALLOW_MESSAGE_EDITING = "Message_AllowEditing"
 const val SHOW_DELETED_STATUS = "Message_ShowDeletedStatus"
 const val SHOW_EDITED_STATUS = "Message_ShowEditedStatus"
 const val ALLOW_MESSAGE_PINNING = "Message_AllowPinning"
+
 /*
  * Extension functions for Public Settings.
  *
  * If you need to access a Setting, add a const val key above, add it to the filter on
  * ServerPresenter.kt and a extension function to access it
  */
-fun PublicSettings.googleEnabled(): Boolean = this[ACCOUNT_GOOGLE]?.value == true
-fun PublicSettings.facebookEnabled(): Boolean = this[ACCOUNT_FACEBOOK]?.value == true
-fun PublicSettings.githubEnabled(): Boolean = this[ACCOUNT_GITHUB]?.value == true
-fun PublicSettings.linkedinEnabled(): Boolean = this[ACCOUNT_LINKEDIN]?.value == true
-fun PublicSettings.meteorEnabled(): Boolean = this[ACCOUNT_METEOR]?.value == true
-fun PublicSettings.twitterEnabled(): Boolean = this[ACCOUNT_TWITTER]?.value == true
-fun PublicSettings.gitlabEnabled(): Boolean = this[ACCOUNT_GITLAB]?.value == true
-fun PublicSettings.wordpressEnabled(): Boolean = this[ACCOUNT_WORDPRESS]?.value == true
+fun PublicSettings.isLdapAuthenticationEnabled(): Boolean = this[LDAP_ENABLE]?.value == true
+fun PublicSettings.isCasAuthenticationEnabled(): Boolean = this[CAS_ENABLE]?.value == true
+fun PublicSettings.casLoginUrl(): String = this[CAS_LOGIN_URL]?.value.toString()
+fun PublicSettings.isRegistrationEnabledForNewUsers(): Boolean = this[ACCOUNT_REGISTRATION]?.value == "Public"
+fun PublicSettings.isLoginFormEnabled(): Boolean = this[ACCOUNT_LOGIN_FORM]?.value == true
+fun PublicSettings.isPasswordResetEnabled(): Boolean = this[ACCOUNT_PASSWORD_RESET]?.value == true
+fun PublicSettings.isGoogleAuthenticationEnabled(): Boolean = this[ACCOUNT_GOOGLE]?.value == true
+fun PublicSettings.isFacebookAuthenticationEnabled(): Boolean = this[ACCOUNT_FACEBOOK]?.value == true
+fun PublicSettings.isGithubAuthenticationEnabled(): Boolean = this[ACCOUNT_GITHUB]?.value == true
+fun PublicSettings.isLinkedinAuthenticationEnabled(): Boolean = this[ACCOUNT_LINKEDIN]?.value == true
+fun PublicSettings.isMeteorAuthenticationEnabled(): Boolean = this[ACCOUNT_METEOR]?.value == true
+fun PublicSettings.isTwitterAuthenticationEnabled(): Boolean = this[ACCOUNT_TWITTER]?.value == true
+fun PublicSettings.isGitlabAuthenticationEnabled(): Boolean = this[ACCOUNT_GITLAB]?.value == true
+fun PublicSettings.isWordpressAuthenticationEnabled(): Boolean = this[ACCOUNT_WORDPRESS]?.value == true
 
 fun PublicSettings.useRealName(): Boolean = this[USE_REALNAME]?.value == true
-fun PublicSettings.ldapEnabled(): Boolean = this[LDAP_ENABLE]?.value == true
 
 // Message settings
 fun PublicSettings.showDeletedStatus(): Boolean = this[SHOW_DELETED_STATUS]?.value == true
@@ -67,11 +77,6 @@ fun PublicSettings.allowedMessagePinning(): Boolean = this[ALLOW_MESSAGE_PINNING
 fun PublicSettings.allowedMessageEditing(): Boolean = this[ALLOW_MESSAGE_EDITING]?.value == true
 fun PublicSettings.allowedMessageDeleting(): Boolean = this[ALLOW_MESSAGE_DELETING]?.value == true
 
-fun PublicSettings.registrationEnabled(): Boolean {
-    val value = this[ACCOUNT_REGISTRATION]
-    return value?.value == "Public"
-}
-
 fun PublicSettings.uploadMimeTypeFilter(): Array<String> {
     val values = this[UPLOAD_WHITELIST_MIMETYPES]?.value
     values?.let { it as String }?.split(",")?.let {

app/src/main/java/chat/rocket/android/server/infraestructure/SharedPreferencesSettingsRepository.kt

@@ -14,12 +14,10 @@ class SharedPreferencesSettingsRepository(private val localRepository: LocalRepo
         localRepository.save("$SETTINGS_KEY$url", adapter.toJson(settings))
     }
 
-    override fun get(url: String): PublicSettings? {
-        val settings = localRepository.get("$SETTINGS_KEY$url")
-        settings?.let {
-            return adapter.fromJson(it)
+    override fun get(url: String): PublicSettings {
+        val settings = localRepository.get("$SETTINGS_KEY$url")!!
+        settings.let {
+            return adapter.fromJson(it)!!
         }
-
-        return null
     }
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/util/extensions/Animation.kt

 package chat.rocket.android.util.extensions
 
+import android.animation.Animator
+import android.animation.AnimatorListenerAdapter
+import android.animation.AnimatorSet
+import android.animation.ObjectAnimator
+import android.content.Context
+import android.os.Build
+import android.os.VibrationEffect
+import android.os.Vibrator
+import android.support.v4.app.Fragment
 import android.view.View
 import android.view.ViewAnimationUtils
 import android.view.animation.AccelerateInterpolator
@@ -63,4 +72,37 @@ fun View.circularRevealOrUnreveal(centerX: Int, centerY: Int, startRadius: Float
     }
 
     anim.start()
+}
+
+fun View.shake(x: Float = 2F, num: Int = 0){
+    if (num == 6) {
+        this.translationX = 0.toFloat()
+        return
+    }
+
+    val animatorSet = AnimatorSet()
+    animatorSet.playTogether(ObjectAnimator.ofFloat(this, "translationX", this.context.dp(x)))
+    animatorSet.duration = 50
+    animatorSet.addListener(object : AnimatorListenerAdapter() {
+        override fun onAnimationEnd(animation: Animator) {
+            shake(if (num == 5) 0.toFloat() else -x, num + 1)
+        }
+    })
+    animatorSet.start()
+}
+
+fun Context.dp(value: Float): Float {
+    val density = this.resources.displayMetrics.density
+    val result = Math.ceil(density.times(value.toDouble()))
+    return result.toFloat()
+}
+
+fun Fragment.vibrateSmartPhone() {
+    val vibrator = context?.getSystemService(Context.VIBRATOR_SERVICE) as Vibrator
+    if (Build.VERSION.SDK_INT >= 26) {
+        vibrator.vibrate(VibrationEffect.createOneShot(200, VibrationEffect.DEFAULT_AMPLITUDE))
+    } else {
+        vibrator.vibrate(200)
+    }
+
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/util/extensions/Text.kt

@@ -9,6 +9,7 @@ import android.widget.TextView
 import chat.rocket.android.widget.emoji.EmojiParser
 import chat.rocket.android.widget.emoji.EmojiTypefaceSpan
 import ru.noties.markwon.Markwon
+import java.security.SecureRandom
 
 fun String.ifEmpty(value: String): String {
     if (isEmpty()) {
@@ -34,6 +35,17 @@ fun EditText.erase() {
 
 fun String.isEmailValid(): Boolean = Patterns.EMAIL_ADDRESS.matcher(this).matches()
 
+fun generateRandomString(stringLength: Int): String {
+    val base = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
+    val secureRandom = SecureRandom()
+
+    val stringBuilder = StringBuilder(stringLength)
+    for (i in 0 until stringLength) {
+        stringBuilder.append(base[secureRandom.nextInt(base.length)])
+    }
+    return stringBuilder.toString()
+}
+
 var TextView.textContent: String
     get() = text.toString()
     set(value) {

app/src/main/java/chat/rocket/android/webview/cas/ui/CasWebViewActivity.kt

+package chat.rocket.android.webview.cas.ui
+
+import android.annotation.SuppressLint
+import android.app.Activity
+import android.content.Context
+import android.content.Intent
+import android.graphics.Bitmap
+import android.os.Bundle
+import android.support.v7.app.AppCompatActivity
+import android.webkit.WebView
+import android.webkit.WebViewClient
+import chat.rocket.android.R
+import kotlinx.android.synthetic.main.activity_web_view.*
+import kotlinx.android.synthetic.main.app_bar.*
+
+fun Context.webViewIntent(webPageUrl: String, casToken: String): Intent {
+    return Intent(this, CasWebViewActivity::class.java).apply {
+        putExtra(INTENT_WEB_PAGE_URL, webPageUrl)
+        putExtra(INTENT_CAS_TOKEN, casToken)
+    }
+}
+
+private const val INTENT_WEB_PAGE_URL = "web_page_url"
+private const val INTENT_CAS_TOKEN = "cas_token"
+
+class CasWebViewActivity : AppCompatActivity() {
+    private lateinit var webPageUrl: String
+    private lateinit var casToken: String
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_web_view)
+
+        webPageUrl = intent.getStringExtra(INTENT_WEB_PAGE_URL)
+        requireNotNull(webPageUrl) { "no web_page_url provided in Intent extras" }
+
+        casToken = intent.getStringExtra(INTENT_CAS_TOKEN)
+        requireNotNull(casToken) { "no cas_token provided in Intent extras" }
+
+        setupToolbar()
+    }
+
+    override fun onResume() {
+        super.onResume()
+        setupWebView()
+    }
+
+    override fun onBackPressed() {
+        if (web_view.canGoBack()) {
+            web_view.goBack()
+        } else {
+            finishActivity(false)
+        }
+    }
+
+    private fun setupToolbar() {
+        toolbar.title = getString(R.string.title_authentication)
+        toolbar.setNavigationIcon(R.drawable.ic_close_white_24dp)
+        toolbar.setNavigationOnClickListener { finishActivity(false) }
+    }
+
+    @SuppressLint("SetJavaScriptEnabled")
+    private fun setupWebView() {
+        web_view.settings.javaScriptEnabled = true
+        web_view.webViewClient = object : WebViewClient() {
+            override fun onPageStarted(view: WebView, url: String, favicon: Bitmap?) {
+                // The user can be already logged in the CAS, so check if the URL contains the "ticket" word
+                // (that means he/she is successful authenticated and we don't need to wait until the page is finished.
+                if (url.contains("ticket")) {
+                    finishActivity(true)
+                }
+            }
+
+            override fun onPageFinished(view: WebView, url: String) {
+                if (url.contains("ticket")) {
+                    finishActivity(true)
+                } else {
+                    view_loading.hide()
+                }
+            }
+        }
+        web_view.loadUrl(webPageUrl)
+    }
+
+    private fun finishActivity(setResultOk: Boolean) {
+        if (setResultOk) {
+            setResult(Activity.RESULT_OK, Intent().putExtra(INTENT_CAS_TOKEN, casToken))
+            finish()
+        } else {
+            super.onBackPressed()
+        }
+        overridePendingTransition(R.anim.hold, R.anim.slide_down)
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/webview/WebViewActivity.kt → app/src/main/java/chat/rocket/android/webview/ui/WebViewActivity.kt

-package chat.rocket.android.webview
+package chat.rocket.android.webview.ui
 
 import android.annotation.SuppressLint
 import android.content.Context
@@ -19,6 +19,7 @@ fun Context.webViewIntent(webPageUrl: String): Intent {
 
 private const val INTENT_WEB_PAGE_URL = "web_page_url"
 
+// Simple WebView to load URL.
 class WebViewActivity : AppCompatActivity() {
     private lateinit var webPageUrl: String
 

app/src/main/java/chat/rocket/android/widget/emoji/CategoryPagerAdapter.kt

@@ -9,10 +9,10 @@ import android.view.View
 import android.view.ViewGroup
 import android.widget.TextView
 import chat.rocket.android.R
-import chat.rocket.android.widget.emoji.EmojiKeyboardPopup.Listener
 import java.util.*
 
-class CategoryPagerAdapter(val listener: Listener) : PagerAdapter() {
+class CategoryPagerAdapter(val listener: EmojiKeyboardListener) : PagerAdapter() {
+
     override fun isViewFromObject(view: View, obj: Any): Boolean {
         return view == obj
     }
@@ -46,7 +46,7 @@ class CategoryPagerAdapter(val listener: Listener) : PagerAdapter() {
 
     override fun getPageTitle(position: Int) = EmojiCategory.values()[position].textIcon()
 
-    class EmojiAdapter(val spanCount: Int, val listener: Listener) : RecyclerView.Adapter<EmojiRowViewHolder>() {
+    class EmojiAdapter(val spanCount: Int, val listener: EmojiKeyboardListener) : RecyclerView.Adapter<EmojiRowViewHolder>() {
         private var emojis = Collections.emptyList<Emoji>()
 
         fun addEmojis(emojis: List<Emoji>) {
@@ -66,7 +66,7 @@ class CategoryPagerAdapter(val listener: Listener) : PagerAdapter() {
         override fun getItemCount(): Int = emojis.size
     }
 
-    class EmojiRowViewHolder(itemView: View, val itemCount: Int, val spanCount: Int, val listener: Listener) : RecyclerView.ViewHolder(itemView) {
+    class EmojiRowViewHolder(itemView: View, val itemCount: Int, val spanCount: Int, val listener: EmojiKeyboardListener) : RecyclerView.ViewHolder(itemView) {
         private val emojiView: TextView = itemView.findViewById(R.id.emoji)
 
         fun bind(emoji: Emoji) {

app/src/main/java/chat/rocket/android/widget/emoji/EmojiKeyboardListener.kt

+package chat.rocket.android.widget.emoji
+
+interface EmojiKeyboardListener {
+    /**
+     * When an emoji is selected on the picker.
+     *
+     * @param emoji The selected emoji
+     */
+    fun onEmojiAdded(emoji: Emoji)
+
+    /**
+     * When backspace key is clicked.
+     *
+     * @param keyCode The key code pressed as defined
+     *
+     * @see android.view.KeyEvent
+     */
+    fun onNonEmojiKeyPressed(keyCode: Int)
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/widget/emoji/EmojiKeyboardPopup.kt

@@ -21,14 +21,14 @@ class EmojiKeyboardPopup(context: Context, view: View) : OverKeyboardPopupWindow
     private lateinit var searchView: View
     private lateinit var backspaceView: View
     private lateinit var parentContainer: ViewGroup
-    var listener: Listener? = null
+    var listener: EmojiKeyboardListener? = null
 
     companion object {
         const val PREF_EMOJI_RECENTS = "PREF_EMOJI_RECENTS"
     }
 
     override fun onCreateView(inflater: LayoutInflater): View {
-        val view = inflater.inflate(R.layout.emoji_popup_layout, null, false)
+        val view = inflater.inflate(R.layout.emoji_keyboard, null)
         parentContainer = view.findViewById(R.id.emoji_keyboard_container)
         viewPager = view.findViewById(R.id.pager_categories)
         searchView = view.findViewById(R.id.emoji_search)
@@ -55,20 +55,17 @@ class EmojiKeyboardPopup(context: Context, view: View) : OverKeyboardPopupWindow
     private fun setupViewPager() {
         context.let {
             val callback = when (it) {
-                is Listener -> it
+                is EmojiKeyboardListener -> it
                 else -> {
                     val fragments = (it as AppCompatActivity).supportFragmentManager.fragments
-                    if (fragments == null || fragments.size == 0 || !(fragments[0] is Listener)) {
+                    if (fragments == null || fragments.size == 0 || !(fragments[0] is EmojiKeyboardListener)) {
                         throw IllegalStateException("activity/fragment should implement Listener interface")
                     }
-                    fragments[0] as Listener
+                    fragments[0] as EmojiKeyboardListener
                 }
             }
-            viewPager.adapter = CategoryPagerAdapter(object : Listener {
-                override fun onNonEmojiKeyPressed(keyCode: Int) {
-                    // do nothing
-                }
 
+            viewPager.adapter = CategoryPagerAdapter(object : EmojiListenerAdapter() {
                 override fun onEmojiAdded(emoji: Emoji) {
                     EmojiRepository.addToRecents(emoji)
                     callback.onEmojiAdded(emoji)
@@ -78,14 +75,14 @@ class EmojiKeyboardPopup(context: Context, view: View) : OverKeyboardPopupWindow
             for (category in EmojiCategory.values()) {
                 val tab = tabLayout.getTabAt(category.ordinal)
                 val tabView = LayoutInflater.from(context).inflate(R.layout.emoji_picker_tab, null)
-                tab?.setCustomView(tabView)
+                tab?.customView = tabView
                 val textView = tabView.findViewById(R.id.image_category) as ImageView
                 textView.setImageResource(category.resourceIcon())
             }
 
             val currentTab = if (EmojiRepository.getRecents().isEmpty()) EmojiCategory.PEOPLE.ordinal else
                 EmojiCategory.RECENTS.ordinal
-            viewPager.setCurrentItem(currentTab)
+            viewPager.currentItem = currentTab
         }
     }
 
@@ -132,22 +129,4 @@ class EmojiKeyboardPopup(context: Context, view: View) : OverKeyboardPopupWindow
         override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
         }
     }
-
-    interface Listener {
-        /**
-         * When an emoji is selected on the picker.
-         *
-         * @param emoji The selected emoji
-         */
-        fun onEmojiAdded(emoji: Emoji)
-
-        /**
-         * When backspace key is clicked.
-         *
-         * @param keyCode The key code pressed as defined
-         *
-         * @see android.view.KeyEvent
-         */
-        fun onNonEmojiKeyPressed(keyCode: Int)
-    }
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/widget/emoji/EmojiListenerAdapter.kt

+package chat.rocket.android.widget.emoji
+
+abstract class EmojiListenerAdapter : EmojiKeyboardListener {
+
+    override fun onEmojiAdded(emoji: Emoji) {
+        // this space is for rent
+    }
+
+    override fun onNonEmojiKeyPressed(keyCode: Int) {
+        // this space is for rent
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/widget/emoji/EmojiPickerPopup.kt

+package chat.rocket.android.widget.emoji
+
+import android.app.Dialog
+import android.content.Context
+import android.os.Bundle
+import android.support.design.widget.TabLayout
+import android.support.v4.view.ViewPager
+import android.view.LayoutInflater
+import android.view.Window
+import android.view.WindowManager
+import android.widget.ImageView
+import chat.rocket.android.R
+
+
+class EmojiPickerPopup(context: Context) : Dialog(context) {
+    private lateinit var viewPager: ViewPager
+    private lateinit var tabLayout: TabLayout
+    var listener: EmojiKeyboardListener? = null
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        requestWindowFeature(Window.FEATURE_NO_TITLE)
+        setContentView(R.layout.emoji_picker)
+
+        viewPager = findViewById(R.id.pager_categories)
+        tabLayout = findViewById(R.id.tabs)
+        tabLayout.setupWithViewPager(viewPager)
+        setupViewPager()
+        setSize()
+    }
+
+    private fun setSize() {
+        val lp = WindowManager.LayoutParams()
+        lp.copyFrom(window.attributes)
+        val dialogWidth = lp.width
+        val dialogHeight = context.resources.getDimensionPixelSize(R.dimen.picker_popup_height)
+        window.setLayout(dialogWidth, dialogHeight)
+    }
+
+    private fun setupViewPager() {
+        viewPager.adapter = CategoryPagerAdapter(object : EmojiListenerAdapter() {
+            override fun onEmojiAdded(emoji: Emoji) {
+                EmojiRepository.addToRecents(emoji)
+                dismiss()
+                listener?.onEmojiAdded(emoji)
+            }
+        })
+
+        for (category in EmojiCategory.values()) {
+            val tab = tabLayout.getTabAt(category.ordinal)
+            val tabView = LayoutInflater.from(context).inflate(R.layout.emoji_picker_tab, null)
+            tab?.customView = tabView
+            val textView = tabView.findViewById(R.id.image_category) as ImageView
+            textView.setImageResource(category.resourceIcon())
+        }
+
+        val currentTab = if (EmojiRepository.getRecents().isEmpty()) EmojiCategory.PEOPLE.ordinal else
+            EmojiCategory.RECENTS.ordinal
+        viewPager.currentItem = currentTab
+    }
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/widget/emoji/EmojiReactionListener.kt

+package chat.rocket.android.widget.emoji
+
+interface EmojiReactionListener {
+    /**
+     * Callback when an emoji is picked in respect to message by the given id.
+     *
+     * @param messageId The id of the message being reacted.
+     * @param emoji The emoji used to react.
+     */
+    fun onReactionAdded(messageId: String, emoji: Emoji)
+
+    /**
+     * Callback when an added reaction is touched.
+     *
+     * @param messageId The id of the message with the reaction.
+     * @param emojiShortname The shortname of the emoji (:grin:, :smiley:, etc).
+     */
+    fun onReactionTouched(messageId: String, emojiShortname: String)
+}
\ No newline at end of file

app/src/main/res/drawable/ic_add_reaction.xml

+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportHeight="20.0"
+    android:viewportWidth="20.0">
+    <path
+        android:fillColor="#868585"
+        android:fillType="evenOdd"
+        android:pathData="M12,8m-1,0a1,1 0,1 1,2 0a1,1 0,1 1,-2 0" />
+    <path
+        android:fillColor="#868585"
+        android:fillType="evenOdd"
+        android:pathData="M8,8m-1,0a1,1 0,1 1,2 0a1,1 0,1 1,-2 0" />
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M10,3a7,7 0,1 0,0 14,7 7,0 0,0 7,-7M7.172,12.328a4,4 0,0 0,5.656 0"
+        android:strokeColor="#868585"
+        android:strokeWidth="1.5" />
+    <path
+        android:fillType="evenOdd"
+        android:pathData="M16.2,1.2v5.2m-2.6,-2.6h5.2"
+        android:strokeColor="#868585"
+        android:strokeLineCap="square"
+        android:strokeWidth="1.5" />
+</vector>

app/src/main/res/drawable/rounded_background.xml

+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <size
+        android:width="24dp"
+        android:height="24dp" />
+    <solid android:color="#efeeee" />
+    <corners android:radius="4dp"/>
+</shape>
\ No newline at end of file

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

@@ -4,7 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".webview.WebViewActivity">
+    tools:context=".webview.ui.WebViewActivity">
 
     <include
         android:id="@+id/layout_app_bar"

app/src/main/res/layout/emoji_popup_layout.xml → app/src/main/res/layout/emoji_keyboard.xml

@@ -11,35 +11,18 @@
         android:layout_width="match_parent"
         android:layout_height="1dp"
         android:background="@color/colorDividerMessageComposer"
-        app:layout_constraintBottom_toTopOf="@+id/tabs"
+        app:layout_constraintBottom_toTopOf="@+id/picker_container"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
 
-    <android.support.design.widget.TabLayout
-        android:id="@+id/tabs"
-        android:layout_width="0dp"
-        android:layout_height="wrap_content"
-        app:layout_constraintBottom_toTopOf="@+id/pager_categories"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-        app:tabBackground="@color/whitesmoke"
-        app:tabGravity="fill"
-        app:tabMaxWidth="48dp"
-        app:tabMode="scrollable" />
-
-    <android.support.v4.view.ViewPager
-        android:id="@+id/pager_categories"
-        android:layout_width="0dp"
-        android:layout_height="0dp"
-        android:layout_marginEnd="8dp"
-        android:layout_marginStart="8dp"
-        android:background="@color/white"
+    <include
+        android:id="@+id/picker_container"
+        layout="@layout/emoji_picker"
         app:layout_constraintBottom_toTopOf="@+id/emoji_actions_container"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@+id/tabs" />
+        app:layout_constraintTop_toTopOf="parent" />
 
     <RelativeLayout
         android:id="@+id/emoji_actions_container"
@@ -60,8 +43,8 @@
             android:clickable="true"
             android:focusable="true"
             android:padding="8dp"
-            android:visibility="invisible"
-            android:src="@drawable/ic_search_gray_24px" />
+            android:src="@drawable/ic_search_gray_24px"
+            android:visibility="invisible" />
 
         <ImageView
             android:id="@+id/emoji_backspace"

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

+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:id="@+id/picker_container"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:background="@color/white"
+    android:orientation="vertical">
+
+    <android.support.design.widget.TabLayout
+        android:id="@+id/tabs"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:tabBackground="@color/whitesmoke"
+        app:tabGravity="fill"
+        app:tabMaxWidth="48dp"
+        app:tabMode="scrollable" />
+
+    <android.support.v4.view.ViewPager
+        android:id="@+id/pager_categories"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_marginEnd="8dp"
+        android:layout_marginStart="8dp"
+        android:background="@color/white" />
+
+</LinearLayout>
\ No newline at end of file

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

@@ -45,6 +45,19 @@
             app:layout_constraintRight_toRightOf="parent"
             app:layout_constraintTop_toBottomOf="@+id/text_username_or_email" />
 
+        <Button
+            android:id="@+id/button_cas"
+            style="@style/Authentication.Button"
+            android:layout_marginEnd="@dimen/screen_edge_left_and_right_margins"
+            android:layout_marginStart="@dimen/screen_edge_left_and_right_margins"
+            android:layout_marginTop="16dp"
+            android:text="@string/action_login_or_sign_up"
+            android:visibility="gone"
+            app:layout_constraintLeft_toLeftOf="parent"
+            app:layout_constraintRight_toRightOf="parent"
+            app:layout_constraintTop_toBottomOf="@+id/text_password"
+            tools:visibility="visible" />
+
         <TextView
             android:id="@+id/text_new_to_rocket_chat"
             android:layout_width="wrap_content"
@@ -57,7 +70,7 @@
             android:visibility="gone"
             app:layout_constraintLeft_toLeftOf="parent"
             app:layout_constraintRight_toRightOf="parent"
-            app:layout_constraintTop_toBottomOf="@+id/text_password"
+            app:layout_constraintTop_toBottomOf="@+id/button_cas"
             tools:visibility="visible" />
 
         <com.wang.avi.AVLoadingIndicatorView
@@ -69,7 +82,7 @@
             app:indicatorName="BallPulseIndicator"
             app:layout_constraintLeft_toLeftOf="parent"
             app:layout_constraintRight_toRightOf="parent"
-            app:layout_constraintTop_toBottomOf="@+id/text_password"
+            app:layout_constraintTop_toBottomOf="@+id/button_cas"
             tools:visibility="visible" />
 
         <LinearLayout
@@ -195,9 +208,8 @@
             android:id="@+id/button_log_in"
             style="@style/Authentication.Button"
             android:text="@string/title_log_in"
-            android:visibility="visible"
-            app:layout_constraintBottom_toBottomOf="parent"
-            tools:visibility="gone" />
+            android:visibility="gone"
+            app:layout_constraintBottom_toBottomOf="parent" />
     </android.support.constraint.ConstraintLayout>
 
 </ScrollView>
\ No newline at end of file

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

+<?xml version="1.0" encoding="utf-8"?>
+<ImageView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="32dp"
+    android:layout_height="32dp"
+    android:paddingBottom="2dp"
+    android:paddingEnd="4dp"
+    android:paddingLeft="4dp"
+    android:paddingRight="4dp"
+    android:paddingStart="4dp"
+    android:paddingTop="2dp"
+    android:src="@drawable/ic_add_reaction" />
\ No newline at end of file

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

@@ -4,10 +4,11 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:layout_marginBottom="12dp"
-    android:layout_marginEnd="@dimen/screen_edge_left_and_right_margins"
-    android:layout_marginStart="@dimen/screen_edge_left_and_right_margins"
-    android:layout_marginTop="12dp">
+    android:background="?android:attr/selectableItemBackground"
+    android:paddingStart="@dimen/screen_edge_left_and_right_padding"
+    android:paddingEnd="@dimen/screen_edge_left_and_right_padding"
+    android:paddingTop="@dimen/chat_item_top_and_bottom_padding"
+    android:paddingBottom="@dimen/chat_item_top_and_bottom_padding">
 
     <include
         android:id="@+id/layout_avatar"

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

@@ -4,10 +4,11 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:layout_marginBottom="6dp"
-    android:layout_marginEnd="@dimen/screen_edge_left_and_right_margins"
-    android:layout_marginStart="@dimen/screen_edge_left_and_right_margins"
-    android:layout_marginTop="6dp">
+    android:background="?android:attr/selectableItemBackground"
+    android:paddingBottom="@dimen/member_item_top_and_bottom_padding"
+    android:paddingEnd="@dimen/screen_edge_left_and_right_padding"
+    android:paddingStart="@dimen/screen_edge_left_and_right_padding"
+    android:paddingTop="@dimen/member_item_top_and_bottom_padding">
 
     <include
         android:id="@+id/layout_avatar"

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

@@ -4,10 +4,13 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:layout_marginBottom="6dp"
-    android:layout_marginEnd="@dimen/screen_edge_left_and_right_margins"
-    android:layout_marginStart="@dimen/screen_edge_left_and_right_margins"
-    android:layout_marginTop="6dp">
+    android:background="?android:attr/selectableItemBackground"
+    android:clickable="true"
+    android:paddingStart="@dimen/screen_edge_left_and_right_padding"
+    android:paddingEnd="@dimen/screen_edge_left_and_right_padding"
+    android:paddingTop="@dimen/message_item_top_and_bottom_padding"
+    android:paddingBottom="@dimen/message_item_top_and_bottom_padding"
+    android:focusable="true">
 
     <include
         android:id="@+id/layout_avatar"
@@ -16,7 +19,30 @@
         android:layout_height="40dp"
         android:layout_marginTop="5dp"
         app:layout_constraintLeft_toLeftOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
+        app:layout_constraintTop_toBottomOf="@id/new_messages_notif" />
+
+    <LinearLayout
+        android:id="@+id/new_messages_notif"
+        tools:visibility="visible"
+        android:visibility="gone"
+        android:orientation="horizontal"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintTop_toTopOf="parent">
+        <View
+            android:layout_gravity="center"
+            android:layout_height="1dp"
+            android:layout_width="0dp"
+            android:layout_weight="1"
+            android:layout_marginRight="4dp"
+            android:background="@color/red"/>
+        <TextView
+            android:layout_width="wrap_content"
+            android:text="@string/msg_unread_messages"
+            android:layout_height="wrap_content"
+            android:textColor="@color/red" />
+    </LinearLayout>
 
     <LinearLayout
         android:id="@+id/top_container"
@@ -24,6 +50,7 @@
         android:layout_height="wrap_content"
         android:layout_marginStart="16dp"
         android:orientation="horizontal"
+        app:layout_constraintTop_toBottomOf="@id/new_messages_notif"
         app:layout_constraintLeft_toRightOf="@+id/layout_avatar">
 
         <TextView
@@ -47,11 +74,18 @@
         style="@style/Message.TextView"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
-        android:layout_marginTop="5dp"
         android:layout_marginBottom="2dp"
+        android:layout_marginTop="5dp"
         app:layout_constraintLeft_toLeftOf="@id/top_container"
         app:layout_constraintRight_toRightOf="parent"
         app:layout_constraintTop_toBottomOf="@+id/top_container"
         tools:text="This is a multiline chat message from Bertie that will take more than just one line of text. I have sure that everything is amazing!" />
 
+    <include layout="@layout/layout_reactions"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        app:layout_constraintEnd_toEndOf="@+id/text_content"
+        app:layout_constraintStart_toStartOf="@+id/text_content"
+        app:layout_constraintTop_toBottomOf="@+id/text_content" />
+
 </android.support.constraint.ConstraintLayout>
\ No newline at end of file

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

+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:layout_marginEnd="2dp"
+    android:layout_marginRight="2dp"
+    android:layout_marginTop="2dp"
+    android:layout_marginBottom="2dp"
+    android:descendantFocusability="beforeDescendants"
+    android:background="@drawable/rounded_background"
+    android:orientation="horizontal">
+
+    <TextView
+        android:id="@+id/text_emoji"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:ellipsize="end"
+        android:maxLines="1"
+        android:paddingLeft="4dp"
+        android:paddingStart="4dp"
+        android:textColor="#868585"
+        android:textSize="16sp"
+        tools:text=":)" />
+
+    <TextView
+        android:id="@+id/text_count"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:gravity="center"
+        android:paddingBottom="4dp"
+        android:paddingEnd="4dp"
+        android:paddingLeft="4dp"
+        android:paddingRight="4dp"
+        android:paddingStart="4dp"
+        android:paddingTop="4dp"
+        android:textColor="#868585"
+        android:textSize="16sp"
+        android:textStyle="bold"
+        tools:text="12" />
+
+</LinearLayout>

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

+<?xml version="1.0" encoding="utf-8"?>
+<android.support.v7.widget.RecyclerView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/recycler_view_reactions"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content" />
\ No newline at end of file

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

@@ -5,9 +5,10 @@
     android:id="@+id/attachment_container"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:paddingStart="72dp"
+    android:background="?android:attr/selectableItemBackground"
+    android:orientation="vertical"
     android:paddingEnd="@dimen/screen_edge_left_and_right_margins"
-    android:orientation="vertical">
+    android:paddingStart="72dp">
 
     <com.facebook.drawee.view.SimpleDraweeView
         android:id="@+id/image_attachment"
@@ -38,4 +39,9 @@
         android:layout_height="wrap_content"
         tools:text="Filename.png" />
 
+    <include
+        layout="@layout/layout_reactions"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content" />
+
 </LinearLayout>
\ No newline at end of file

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

 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
+<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/url_preview_layout"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
-    android:paddingStart="72dp"
-    android:paddingEnd="24dp">
+    android:background="?android:attr/selectableItemBackground"
+    android:paddingEnd="24dp"
+    android:paddingStart="72dp">
 
     <com.facebook.drawee.view.SimpleDraweeView
         android:id="@+id/image_preview"
         android:layout_width="70dp"
         android:layout_height="50dp"
-        app:actualImageScaleType="centerCrop"/>
+        app:actualImageScaleType="centerCrop" />
 
     <TextView
         android:id="@+id/text_host"
@@ -21,26 +21,33 @@
         android:layout_height="wrap_content"
         android:layout_marginStart="8dp"
         android:textColor="@color/colorSecondaryText"
-        tools:text="www.uol.com.br"
         app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toEndOf="@+id/image_preview" />
+        app:layout_constraintStart_toEndOf="@+id/image_preview"
+        tools:text="www.uol.com.br" />
 
     <TextView
         android:id="@+id/text_title"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
         android:textColor="@color/colorAccent"
-        tools:text="Web page title"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="@+id/text_host"
-        app:layout_constraintTop_toBottomOf="@id/text_host"/>
+        app:layout_constraintTop_toBottomOf="@id/text_host"
+        tools:text="Web page title" />
 
     <TextView
         android:id="@+id/text_description"
         android:layout_width="0dp"
         android:layout_height="wrap_content"
-        tools:text="description"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="@+id/text_host"
-        app:layout_constraintTop_toBottomOf="@id/text_title"/>
+        app:layout_constraintTop_toBottomOf="@id/text_title"
+        tools:text="description" />
+
+    <include
+        layout="@layout/layout_reactions"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        app:layout_constraintStart_toStartOf="@+id/image_preview"
+        app:layout_constraintTop_toBottomOf="@+id/text_description" />
 </android.support.constraint.ConstraintLayout>
\ No newline at end of file

app/src/main/res/menu/message_actions.xml

@@ -22,6 +22,11 @@
             android:icon="@drawable/ic_content_copy_black_24px"
             android:title="@string/action_msg_copy" />
 
+        <item
+            android:id="@+id/action_menu_msg_react"
+            android:icon="@drawable/ic_add_reaction"
+            android:title="@string/action_msg_add_reaction" />
+
         <!--<item-->
         <!--android:id="@+id/action_menu_msg_share"-->
         <!--andrtextIconicon="@drawable/ic_share_black_24px"-->

app/src/main/res/values-pt-rBR/strings.xml

@@ -4,6 +4,7 @@
     <string name="title_sign_in_your_server">Faça login no seu servidor</string>
     <string name="title_log_in">Entrar</string>
     <string name="title_sign_up">Inscreva-se</string>
+    <string name="title_authentication">Autenticação</string>
     <string name="title_legal_terms">Termos Legais</string>
     <string name="title_chats">Chats</string>
     <string name="title_profile">Perfil</string>
@@ -14,6 +15,7 @@
 
     <!-- Actions -->
     <string name="action_connect">Conectar</string>
+    <string name="action_login_or_sign_up">Toque este botão para fazer login ou criar uma conta</string>
     <string name="action_terms_of_service">Termos de Serviço</string>
     <string name="action_privacy_policy">Política de Privacidade</string>
     <string name="action_search">Pesquisar</string>
@@ -64,6 +66,7 @@
     <string name="msg_utc_offset">Deslocamento de UTC</string>
     <string name="msg_new_password">Informe a nova senha</string>
     <string name="msg_confirm_password">Confirme a nova senha</string>
+    <string name="msg_unread_messages">Mensagens não lidas</string>
 
     <!-- System messages -->
     <string name="message_room_name_changed">Nome da sala alterado para: %1$s por %2$s</string>
@@ -82,10 +85,11 @@
     <string name="action_msg_quote">Citar</string>
     <string name="action_msg_delete">Remover</string>
     <string name="action_msg_pin">Fixar Mensagem</string>
-    <string name="action_msg_unpin">Desafixar Messagem</string>
+    <string name="action_msg_unpin">Desafixar Mensagem</string>
     <string name="action_msg_star">Favoritar Mensagem</string>
     <string name="action_msg_share">Compartilhar</string>
     <string name="action_title_editing">Editando Mensagem</string>
+    <string name="action_msg_add_reaction">Adicionar reação</string>
 
     <!-- Permission messages -->
     <string name="permission_editing_not_allowed">Edição não permitida</string>

app/src/main/res/values/dimens.xml

@@ -4,6 +4,11 @@
     <!-- Default screen margins, per the Android Design guidelines. -->
     <dimen name="screen_edge_left_and_right_margins">16dp</dimen>
 
+    <dimen name="screen_edge_left_and_right_padding">16dp</dimen>
+    <dimen name="chat_item_top_and_bottom_padding">12dp</dimen>
+    <dimen name="message_item_top_and_bottom_padding">6dp</dimen>
+    <dimen name="member_item_top_and_bottom_padding">6dp</dimen>
+
     <dimen name="edit_text_margin">10dp</dimen>
     <dimen name="edit_text_drawable_padding">16dp</dimen>
 
@@ -19,6 +24,8 @@
     <!-- Emoji -->
     <dimen name="picker_padding_bottom">16dp</dimen>
     <dimen name="supposed_keyboard_height">252dp</dimen>
+    <dimen name="picker_popup_height">250dp</dimen>
+    <dimen name="picker_popup_width">300dp</dimen>
 
     <!-- Message -->
     <dimen name="padding_quote">8dp</dimen>

app/src/main/res/values/strings.xml

@@ -5,6 +5,7 @@
     <string name="title_sign_in_your_server">Sign in your server</string>
     <string name="title_log_in">Log in</string>
     <string name="title_sign_up">Sign up</string>
+    <string name="title_authentication">Authentication</string>
     <string name="title_legal_terms">Legal Terms</string>
     <string name="title_chats">Chats</string>
     <string name="title_profile">Profile</string>
@@ -15,6 +16,7 @@
 
     <!-- Actions -->
     <string name="action_connect">Connect</string>
+    <string name="action_login_or_sign_up">Tap this button to log in or create an account</string>
     <string name="action_terms_of_service">Terms of Service</string>
     <string name="action_privacy_policy">Privacy Policy</string>
     <string name="action_search">Search</string>
@@ -66,6 +68,7 @@
     <string name="msg_utc_offset">UTC offset</string>
     <string name="msg_new_password">Enter New Password</string>
     <string name="msg_confirm_password">Confirm New Password</string>
+    <string name="msg_unread_messages">Unread messages</string>
 
     <!-- System messages -->
     <string name="message_room_name_changed">Room name changed to: %1$s by %2$s</string>
@@ -88,6 +91,7 @@
     <string name="action_msg_star">Star Message</string>
     <string name="action_msg_share">Share</string>
     <string name="action_title_editing">Editing Message</string>
+    <string name="action_msg_add_reaction">Add reaction</string>
 
     <!-- Permission messages -->
     <string name="permission_editing_not_allowed">Editing is not allowed</string>

dependencies.gradle

@@ -30,6 +30,7 @@ ext {
         markwon                : '1.0.3',
         sheetMenu              : '1.3.3',
         aVLoadingIndicatorView : '2.1.3',
+        flexbox                : '0.3.2',
 
         // For testing
         junit                  : '4.12',
@@ -49,6 +50,7 @@ ext {
         design                 : "com.android.support:design:${versions.support}",
         constraintLayout       : "com.android.support.constraint:constraint-layout:${versions.constraintLayout}",
         cardView               : "com.android.support:cardview-v7:${versions.support}",
+        flexbox                : "com.google.android:flexbox:${versions.flexbox}",
 
         androidKtx             :  "androidx.core:core-ktx:${versions.androidKtx}",