Add option to select identity when composing a message

app/src/main/java/ch/dissem/apps/abit/ComposeMessageFragment.kt

@@ -101,9 +101,8 @@ class ComposeMessageFragment : Fragment() {
                     parent.inventoryVector?.let { parents.add(it) }
                 }
             }
-        } ?: {
-            throw IllegalStateException("No identity set for ComposeMessageFragment")
-        }.invoke()
+        } ?: throw IllegalStateException("No identity set for ComposeMessageFragment")
+
         setHasOptionsMenu(true)
     }
 
@@ -115,14 +114,26 @@ class ComposeMessageFragment : Fragment() {
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
 
+        context?.let { ctx ->
+            val identities = Singleton.getAddressRepository(ctx).getIdentities()
+            sender_input.adapter = ContactAdapter(ctx, identities, true)
+            val index = identities.indexOf(Singleton.getIdentity(ctx))
+            if (index >= 0) {
+                sender_input.setSelection(index)
+            }
+
             if (broadcast) {
                 recipient_input.visibility = View.GONE
             } else {
-            val adapter = ContactAdapter(context!!)
+                val adapter = ContactAdapter(
+                    ctx,
+                    Singleton.getAddressRepository(ctx).getContacts()
+                )
                 recipient_input.setAdapter(adapter)
                 recipient_input.onItemClickListener =
                     AdapterView.OnItemClickListener { _, _, pos, _ -> adapter.getItem(pos) }
-            recipient_input.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
+                recipient_input.onItemSelectedListener =
+                    object : AdapterView.OnItemSelectedListener {
                         override fun onItemSelected(
                             parent: AdapterView<*>,
                             view: View,
@@ -149,6 +160,7 @@ class ComposeMessageFragment : Fragment() {
                 }
             }
         }
+    }
 
     override fun onCreateOptionsMenu(menu: Menu?, inflater: MenuInflater) {
         inflater.inflate(R.menu.compose, menu)
@@ -184,7 +196,7 @@ class ComposeMessageFragment : Fragment() {
     private fun build(ctx: Context): Plaintext {
         val builder: Plaintext.Builder
         if (broadcast) {
-            builder = Plaintext.Builder(BROADCAST).from(identity)
+            builder = Plaintext.Builder(BROADCAST)
         } else {
             val inputString = recipient_input.text.toString()
             if (recipient == null || recipient?.toString() != inputString) {
@@ -203,9 +215,10 @@ class ComposeMessageFragment : Fragment() {
 
             }
             builder = Plaintext.Builder(MSG)
-                .from(identity)
                 .to(recipient)
         }
+        val sender = sender_input.selectedItem as? ch.dissem.bitmessage.entity.BitmessageAddress
+        sender?.let { builder.from(it) }
         if (!Preferences.requestAcknowledgements(ctx)) {
             builder.preventAck()
         }

app/src/main/java/ch/dissem/apps/abit/adapter/ContactAdapter.kt

@@ -20,25 +20,22 @@ import android.content.Context
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
-import android.widget.BaseAdapter
-import android.widget.Filter
-import android.widget.Filterable
-import android.widget.ImageView
-import android.widget.TextView
-
-import java.util.ArrayList
-
+import android.widget.*
 import ch.dissem.apps.abit.Identicon
 import ch.dissem.apps.abit.R
-import ch.dissem.apps.abit.service.Singleton
 import ch.dissem.bitmessage.entity.BitmessageAddress
+import java.util.*
 
 /**
  * An adapter for contacts. Can be filtered by alias or address.
  */
-class ContactAdapter(ctx: Context) : BaseAdapter(), Filterable {
+class ContactAdapter(
+    ctx: Context,
+    private val originalData: List<BitmessageAddress>,
+    private val slim: Boolean = false
+) :
+    BaseAdapter(), Filterable {
     private val inflater = LayoutInflater.from(ctx)
-    private val originalData = Singleton.getAddressRepository(ctx).getContacts()
     private var data: List<BitmessageAddress> = originalData
 
     override fun getCount() = data.size
@@ -49,23 +46,33 @@ class ContactAdapter(ctx: Context) : BaseAdapter(), Filterable {
 
     override fun getView(position: Int, convertView: View?, parent: ViewGroup): View {
         val viewHolder = if (convertView == null) {
-            ViewHolder(inflater.inflate(R.layout.contact_row, parent, false))
+            ViewHolder(
+                inflater.inflate(
+                    if (slim) {
+                        R.layout.contact_row_slim
+                    } else {
+                        R.layout.contact_row
+                    },
+                    parent, false
+                )
+            )
         } else {
             convertView.tag as ViewHolder
         }
         val item = getItem(position)
         viewHolder.avatar.setImageDrawable(Identicon(item))
         viewHolder.name.text = item.toString()
-        viewHolder.address.text = item.address
+        viewHolder.address?.text = item.address
+
         return viewHolder.view
     }
 
     override fun getFilter(): Filter = ContactFilter()
 
     private inner class ViewHolder(val view: View) {
-        val avatar = view.findViewById<ImageView>(R.id.avatar)!!
-        val name = view.findViewById<TextView>(R.id.name)!!
-        val address = view.findViewById<TextView>(R.id.address)!!
+        val avatar: ImageView = view.findViewById(R.id.avatar)
+        val name: TextView = view.findViewById(R.id.name)
+        val address: TextView? = view.findViewById(R.id.address)
 
         init {
             view.tag = this
@@ -88,7 +95,9 @@ class ContactAdapter(ctx: Context) : BaseAdapter(), Filterable {
                             if (alias.startsWith(prefixString)) {
                                 newValues.add(value)
                             } else {
-                                    val words = alias.split(" ".toRegex()).dropLastWhile { it.isEmpty() }.toTypedArray()
+                                val words =
+                                    alias.split(" ".toRegex()).dropLastWhile { it.isEmpty() }
+                                        .toTypedArray()
 
                                 for (word in words) {
                                     if (word.startsWith(prefixString)) {

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

@@ -0,0 +1,47 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright 2015 Christian Basler
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<RelativeLayout 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">
+
+    <ImageView
+        android:id="@+id/avatar"
+        android:layout_width="32dp"
+        android:layout_height="32dp"
+        android:layout_alignParentStart="true"
+        android:layout_alignParentTop="true"
+        android:layout_margin="4dp"
+        android:src="@color/colorAccent"
+        tools:ignore="ContentDescription" />
+
+    <TextView
+        android:id="@+id/name"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_centerVertical="true"
+        android:layout_toEndOf="@+id/avatar"
+        android:ellipsize="end"
+        android:lines="1"
+        android:paddingBottom="0dp"
+        android:paddingEnd="4dp"
+        android:paddingStart="4dp"
+        android:paddingTop="0dp"
+        android:textAppearance="?android:attr/textAppearanceMedium"
+        tools:text="Name" />
+
+</RelativeLayout>

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

@@ -4,6 +4,20 @@
     android:layout_height="match_parent"
     android:orientation="vertical">
 
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:labelFor="@id/sender_input"
+        android:padding="4dp"
+        android:text="@string/from"
+        android:textColor="#9b9b9b"
+        android:textSize="12sp" />
+
+    <Spinner
+        android:id="@+id/sender_input"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+
     <android.support.design.widget.TextInputLayout
         android:layout_width="match_parent"
         android:layout_height="wrap_content"

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

@@ -127,4 +127,5 @@ Als Alternative kann in den Einstellungen ein vertrauenswürdiger Knoten konfigu
     <string name="import_data">Import</string>
     <string name="import_data_summary">Nachrichten und Kontakte importieren (aber keine Identitäten)</string>
     <string name="select_encoding">Kodierung auswählen</string>
+    <string name="from">Von</string>
 </resources>

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

@@ -126,4 +126,5 @@ As an alternative you could configure a trusted node in the settings, but as of
     <string name="request_acknowledgements_summary">Acknowledges allow making sure a message was received, but require additional time to send</string>
     <string name="got_it">Got it</string>
     <string name="select_encoding">Select encoding</string>
+    <string name="from">From</string>
 </resources>