From 72df864d41e91d184dd20178d48e7b68df13e725 Mon Sep 17 00:00:00 2001
From: Christian Schneppe <christian@pix-art.de>
Date: Wed, 22 Nov 2017 21:00:33 +0100
Subject: send and show read markers in private, non-anonymous groups

---
 .../java/de/pixart/messenger/utils/UIHelper.java   | 69 ++++++++++++++++++++--
 1 file changed, 64 insertions(+), 5 deletions(-)

(limited to 'src/main/java/de/pixart/messenger/utils')

diff --git a/src/main/java/de/pixart/messenger/utils/UIHelper.java b/src/main/java/de/pixart/messenger/utils/UIHelper.java
index 0049a2aa8..953ffcf81 100644
--- a/src/main/java/de/pixart/messenger/utils/UIHelper.java
+++ b/src/main/java/de/pixart/messenger/utils/UIHelper.java
@@ -8,6 +8,8 @@ import android.widget.PopupMenu;
 
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
+import java.math.BigInteger;
+import java.security.MessageDigest;
 import java.util.Arrays;
 import java.util.Calendar;
 import java.util.Date;
@@ -28,6 +30,34 @@ import de.pixart.messenger.xmpp.jid.Jid;
 
 public class UIHelper {
 
+    private static int COLORS[] = {
+            0xFFE91E63, //pink 500
+            0xFFAD1457, //pink 800
+            0xFF9C27B0, //purple 500
+            0xFF6A1B9A, //purple 800
+            0xFF673AB7, //deep purple 500,
+            0xFF4527A0, //deep purple 800,
+            0xFF3F51B5, //indigo 500,
+            0xFF283593, //indigo 800
+            0xFF2196F3, //blue 500
+            0xFF1565C0, //blue 800
+            0xFF03A9F4, //light blue 500
+            0xFF0277BD, //light blue 800
+            0xFF00BCD4, //cyan 500
+            0xFF00838F, //cyan 800
+            0xFF009688, //teal 500,
+            0xFF00695C, //teal 800,
+            //0xFF558B2F, //light green 800
+            0xFFC0CA33, //lime 600
+            0xFF9E9D24, //lime 800
+            0xFFEF6C00, //orange 800
+            0xFFD84315, //deep orange 800,
+            0xFF795548, //brown 500,
+            //0xFF4E342E, //brown 800
+            0xFF607D8B, //blue grey 500,
+            0xFF37474F //blue grey 800
+    };
+
     private static final List<String> LOCATION_QUESTIONS = Arrays.asList(
             "where are you", //en
             "where are you now", //en
@@ -150,10 +180,18 @@ public class UIHelper {
         if (name == null || name.isEmpty()) {
             return 0xFF202020;
         }
-        int colors[] = {0xFFe91e63, 0xFF9c27b0, 0xFF673ab7, 0xFF3f51b5,
-                0xFF5677fc, 0xFF03a9f4, 0xFF00bcd4, 0xFF009688, 0xFFff5722,
-                0xFF795548, 0xFF607d8b};
-        return colors[(int) ((name.hashCode() & 0xffffffffl) % colors.length)];
+        return COLORS[getIntForName(name) % COLORS.length];
+    }
+
+    private static int getIntForName(String name) {
+        try {
+            final MessageDigest messageDigest = MessageDigest.getInstance("MD5");
+            messageDigest.update(name.getBytes());
+            byte[] bytes = messageDigest.digest();
+            return Math.abs(new BigInteger(bytes).intValue());
+        } catch (Exception e) {
+            return 0;
+        }
     }
 
     public static Pair<String, Boolean> getMessagePreview(final Context context, final Message message) {
@@ -321,8 +359,29 @@ public class UIHelper {
         if (contact != null) {
             return contact.getDisplayName();
         } else {
-            return user.getName();
+            final String name = user.getName();
+            if (name != null) {
+                return name;
+            }
+            final Jid realJid = user.getRealJid();
+            if (realJid != null) {
+                return JidHelper.localPartOrFallback(realJid);
+            }
+            return null;
+        }
+    }
+
+    public static String concatNames(List<MucOptions.User> users) {
+        StringBuilder builder = new StringBuilder();
+        final boolean shortNames = users.size() >= 3;
+        for (MucOptions.User user : users) {
+            if (builder.length() != 0) {
+                builder.append(", ");
+            }
+            final String name = UIHelper.getDisplayName(user);
+            builder.append(shortNames ? name.split("\\s+")[0] : name);
         }
+        return builder.toString();
     }
 
     public static String getFileDescriptionString(final Context context, final Message message) {
-- 
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