Add UI

AndroidManifest.xml

@@ -479,6 +479,10 @@
     <activity android:name="org.thoughtcrime.securesms.loki.NewConversationActivity"
         android:windowSoftInputMode="stateAlwaysVisible"
         android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize" />
+
+    <activity android:name="org.thoughtcrime.securesms.loki.AddPublicChatActivity"
+            android:windowSoftInputMode="stateAlwaysVisible"
+            android:configChanges="touchscreen|keyboard|keyboardHidden|orientation|screenLayout|screenSize" />
     <!-- Loki -->
 
     <service android:enabled="true" android:name="org.thoughtcrime.securesms.service.WebRtcCallService"/>

res/layout/fragment_add_public_chat.xml

@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginStart="32dp"
+        android:layout_marginEnd="32dp"
+        android:orientation="vertical">
+
+        <org.thoughtcrime.securesms.components.LabeledEditText
+            android:id="@+id/serverUrlEditText"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="32dp"
+            app:labeledEditText_background="@color/loki_darkest_gray"
+            app:labeledEditText_label="@string/fragment_add_public_chat_server_url_edit_text_label"/>
+
+        <TextView
+            android:id="@+id/explanationTextView"
+            style="@style/Signal.Text.Body"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="24dp"
+            android:text="@string/fragment_add_public_chat_explanation" />
+
+        <com.dd.CircularProgressButton
+            android:id="@+id/addButton"
+            android:layout_width="match_parent"
+            android:layout_height="50dp"
+            android:layout_marginTop="24dp"
+            android:layout_marginBottom="32dp"
+            android:layout_gravity="center_horizontal"
+            android:background="@color/signal_primary"
+            android:textColor="@color/white"
+            app:cpb_colorIndicator="@color/white"
+            app:cpb_colorProgress="@color/textsecure_primary"
+            app:cpb_cornerRadius="4dp"
+            app:cpb_selectorIdle="@drawable/progress_button_state"
+            app:cpb_textIdle="@string/fragment_add_public_chat_add_button_title" />
+
+    </LinearLayout>
+
+</ScrollView>

res/values/strings.xml

@@ -1575,6 +1575,7 @@
     <string name="activity_settings_public_key_copied_message">Copied to clipboard</string>
     <string name="activity_settings_share_public_key_button_title">Share Public Key</string>
     <string name="activity_settings_show_qr_code_button_title">Show QR Code</string>
+    <string name="activity_settings_add_public_chat_button_title">Add Public Chat</string>
     <string name="activity_settings_link_device_button_title">Link Device</string>
     <string name="activity_settings_show_seed_button_title">Show Seed</string>
     <string name="activity_settings_seed_dialog_title">Your Seed</string>
@@ -1598,6 +1599,15 @@
     <string name="fragment_new_conversation_next_button_title">Next</string>
     <string name="fragment_new_conversation_invalid_public_key_message">Invalid public key</string>
     <string name="fragment_new_conversation_note_to_self_not_supported_message">Please enter the public key of the person you\'d like to message</string>
+    <!-- Add public chat activity -->
+    <string name="fragment_add_public_chat_title">Add Public Chat</string>
+    <string name="fragment_add_public_chat_server_url_edit_text_label">Server URL</string>
+    <string name="fragment_add_public_chat_explanation">Enter the full URL of the public server. E.g https://public-server.url</string>
+    <string name="fragment_add_public_chat_add_button_title">Add</string>
+    <string name="fragment_add_public_chat_adding_server_button_title">Adding Server...</string>
+    <string name="fragment_add_public_chat_invalid_url_message">Invalid Url provided</string>
+    <string name="fragment_add_public_chat_failed_connect_message">Failed to connect to server</string>
+    <string name="fragment_add_public_chat_success_message">Added public chat server</string>
     <!-- Friend request view -->
     <string name="view_friend_request_accept_button_title">Accept</string>
     <string name="view_friend_request_reject_button_title">Reject</string>

res/xml/preferences.xml

@@ -41,6 +41,10 @@
                 android:title="@string/activity_settings_show_qr_code_button_title"
                 android:icon="@drawable/icon_qr_code"/>
 
+    <Preference android:key="preference_category_public_chat"
+        android:title="@string/activity_settings_add_public_chat_button_title"
+        android:icon="@drawable/ic_group_white_24dp"/>
+
     <Preference android:key="preference_category_link_device"
         android:title="@string/activity_settings_link_device_button_title"
         android:icon="@drawable/icon_link"/>

src/org/thoughtcrime/securesms/ApplicationPreferencesActivity.java

@@ -40,8 +40,10 @@ import android.support.v7.preference.Preference;
 import android.widget.Toast;
 
 import org.thoughtcrime.securesms.crypto.IdentityKeyUtil;
+import org.thoughtcrime.securesms.loki.AddPublicChatActivity;
 import org.thoughtcrime.securesms.loki.DeviceLinkingDialog;
 import org.thoughtcrime.securesms.loki.DeviceLinkingView;
+import org.thoughtcrime.securesms.loki.NewConversationActivity;
 import org.thoughtcrime.securesms.loki.QRCodeDialog;
 import org.thoughtcrime.securesms.preferences.AppProtectionPreferenceFragment;
 import org.thoughtcrime.securesms.preferences.ChatsPreferenceFragment;
@@ -85,6 +87,7 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
   private static final String PREFERENCE_CATEGORY_QR_CODE        = "preference_category_qr_code";
   private static final String PREFERENCE_CATEGORY_LINK_DEVICE    = "preference_category_link_device";
   private static final String PREFERENCE_CATEGORY_SEED           = "preference_category_seed";
+  private static final String PREFERENCE_CATEGORY_PUBLIC_CHAT    = "preference_category_public_chat";
 
   private final DynamicTheme    dynamicTheme    = new DynamicTheme();
   private final DynamicLanguage dynamicLanguage = new DynamicLanguage();
@@ -187,6 +190,9 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
         .setOnPreferenceClickListener(new CategoryClickListener(PREFERENCE_CATEGORY_PUBLIC_KEY));
       this.findPreference(PREFERENCE_CATEGORY_QR_CODE)
         .setOnPreferenceClickListener(new CategoryClickListener(PREFERENCE_CATEGORY_QR_CODE));
+      this.findPreference(PREFERENCE_CATEGORY_PUBLIC_CHAT)
+              .setOnPreferenceClickListener(new CategoryClickListener(PREFERENCE_CATEGORY_PUBLIC_CHAT));
+
       Preference linkDevicePreference = this.findPreference(PREFERENCE_CATEGORY_LINK_DEVICE);
       // Hide if this is a slave device
       linkDevicePreference.setVisible(isMasterDevice);
@@ -256,6 +262,7 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
       Drawable qrCode        = DrawableCompat.wrap(ContextCompat.getDrawable(context, R.drawable.icon_qr_code));
       Drawable linkDevice    = DrawableCompat.wrap(ContextCompat.getDrawable(context, R.drawable.icon_link));
       Drawable seed          = DrawableCompat.wrap(ContextCompat.getDrawable(context, R.drawable.icon_seedling));
+      Drawable publicChat    = DrawableCompat.wrap(ContextCompat.getDrawable(context, R.drawable.ic_group_white_24dp));
 
       int[]      tintAttr   = new int[]{R.attr.pref_icon_tint};
       TypedArray typedArray = context.obtainStyledAttributes(tintAttr);
@@ -273,6 +280,7 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
       DrawableCompat.setTint(qrCode, color);
       DrawableCompat.setTint(linkDevice, color);
       DrawableCompat.setTint(seed, color);
+      DrawableCompat.setTint(publicChat, color);
 
       // this.findPreference(PREFERENCE_CATEGORY_SMS_MMS).setIcon(sms);
       this.findPreference(PREFERENCE_CATEGORY_NOTIFICATIONS).setIcon(notifications);
@@ -285,6 +293,7 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
       this.findPreference(PREFERENCE_CATEGORY_QR_CODE).setIcon(qrCode);
       this.findPreference(PREFERENCE_CATEGORY_LINK_DEVICE).setIcon(linkDevice);
       this.findPreference(PREFERENCE_CATEGORY_SEED).setIcon(seed);
+      this.findPreference(PREFERENCE_CATEGORY_PUBLIC_CHAT).setIcon(publicChat);
     }
 
     private class CategoryClickListener implements Preference.OnPreferenceClickListener {
@@ -369,6 +378,9 @@ public class ApplicationPreferencesActivity extends PassphraseRequiredActionBarA
             // Do nothing
           }
           break;
+        case PREFERENCE_CATEGORY_PUBLIC_CHAT:
+          startActivity(new Intent(getActivity(), AddPublicChatActivity.class));
+          break;
         default:
           throw new AssertionError();
         }

src/org/thoughtcrime/securesms/loki/AddPublicChatActivity.kt

@@ -0,0 +1,81 @@
+package org.thoughtcrime.securesms.loki
+
+import android.Manifest
+import android.content.Intent
+import android.os.Bundle
+import android.util.Patterns
+import android.view.MenuItem
+import android.view.inputmethod.InputMethodManager
+import android.widget.Toast
+import kotlinx.android.synthetic.main.activity_account_details.*
+import kotlinx.android.synthetic.main.fragment_add_public_chat.*
+import network.loki.messenger.R
+import nl.komponents.kovenant.ui.failUi
+import nl.komponents.kovenant.ui.successUi
+import org.thoughtcrime.securesms.ApplicationContext
+import org.thoughtcrime.securesms.BaseActionBarActivity
+import org.thoughtcrime.securesms.PassphraseRequiredActionBarActivity
+import org.thoughtcrime.securesms.conversation.ConversationActivity
+import org.thoughtcrime.securesms.database.Address
+import org.thoughtcrime.securesms.database.DatabaseFactory
+import org.thoughtcrime.securesms.database.ThreadDatabase
+import org.thoughtcrime.securesms.recipients.Recipient
+import org.thoughtcrime.securesms.util.DynamicTheme
+import org.thoughtcrime.securesms.util.TextSecurePreferences
+import org.whispersystems.signalservice.loki.api.LokiGroupChatAPI
+import org.whispersystems.signalservice.loki.utilities.Analytics
+import org.whispersystems.signalservice.loki.utilities.PublicKeyValidation
+
+class AddPublicChatActivity : PassphraseRequiredActionBarActivity() {
+    private val dynamicTheme = DynamicTheme()
+
+    override fun onPreCreate() {
+        dynamicTheme.onCreate(this)
+    }
+
+    override fun onCreate(bundle: Bundle?, isReady: Boolean) {
+        supportActionBar!!.setTitle(R.string.fragment_add_public_chat_title)
+        supportActionBar!!.setDisplayHomeAsUpEnabled(true)
+        setContentView(R.layout.fragment_add_public_chat)
+        setButtonEnabled(true)
+        addButton.setOnClickListener { addPublicChatIfPossible() }
+    }
+
+    public override fun onResume() {
+        super.onResume()
+        dynamicTheme.onResume(this)
+    }
+
+    override fun onOptionsItemSelected(item: MenuItem): Boolean {
+        if (item.itemId == android.R.id.home) {
+            onBackPressed()
+            return true
+        }
+        return super.onOptionsItemSelected(item)
+    }
+
+    private fun addPublicChatIfPossible() {
+        val inputMethodManager = getSystemService(BaseActionBarActivity.INPUT_METHOD_SERVICE) as InputMethodManager
+        inputMethodManager.hideSoftInputFromWindow(serverUrlEditText.windowToken, 0)
+
+        val url = serverUrlEditText.text.toString().toLowerCase()
+        if (!Patterns.WEB_URL.matcher(url).matches()) { return Toast.makeText(this, R.string.fragment_add_public_chat_invalid_url_message, Toast.LENGTH_SHORT).show() }
+
+        setButtonEnabled(false)
+
+        ApplicationContext.getInstance(this).lokiPublicChatManager.addChat(url, 1).successUi {
+            Toast.makeText(this, R.string.fragment_add_public_chat_success_message, Toast.LENGTH_SHORT).show()
+            finish()
+        }.failUi {
+            setButtonEnabled(true)
+            Toast.makeText(this, R.string.fragment_add_public_chat_failed_connect_message, Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    private fun setButtonEnabled(enabled: Boolean) {
+        addButton.isEnabled = enabled
+        val text = if (enabled) R.string.fragment_add_public_chat_add_button_title else R.string.fragment_add_public_chat_adding_server_button_title
+        addButton.setText(text)
+        serverUrlEditText.isEnabled = enabled
+    }
+}

src/org/thoughtcrime/securesms/loki/LokiPublicChatManager.kt

@@ -39,7 +39,7 @@ class LokiPublicChatManager(private val context: Context) {
   }
 
   public fun addChat(server: String, channel: Long): Promise<LokiGroupChat, Exception> {
-    val groupChatAPI = ApplicationContext.getInstance(context).lokiGroupChatAPI ?: return Promise.ofFail(IllegalStateException())
+    val groupChatAPI = ApplicationContext.getInstance(context).lokiGroupChatAPI ?: return Promise.ofFail(IllegalStateException("LokiGroupChatAPI is not set!"))
     return groupChatAPI.getAuthToken(server).bind {
       groupChatAPI.getChannelInfo(channel, server)
     }.map {