Added copy contact email/name to clipboard

app/src/main/java/eu/faircode/email/AdapterContact.java

@@ -20,6 +20,8 @@ package eu.faircode.email;
 */
 
 import android.Manifest;
+import android.content.ClipData;
+import android.content.ClipboardManager;
 import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
@@ -41,6 +43,7 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.ImageView;
 import android.widget.TextView;
+import android.widget.Toast;
 
 import androidx.annotation.NonNull;
 import androidx.appcompat.widget.PopupMenu;
@@ -55,11 +58,16 @@ import androidx.recyclerview.widget.ListUpdateCallback;
 import androidx.recyclerview.widget.RecyclerView;
 
 import java.io.InputStream;
+import java.io.UnsupportedEncodingException;
+import java.nio.charset.StandardCharsets;
 import java.text.NumberFormat;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
+import javax.mail.Address;
+import javax.mail.internet.InternetAddress;
+
 public class AdapterContact extends RecyclerView.Adapter<AdapterContact.ViewHolder> {
     private Fragment parentFragment;
 
@@ -244,6 +252,7 @@ public class AdapterContact extends RecyclerView.Adapter<AdapterContact.ViewHold
                     contact.type != EntityContact.TYPE_NO_JUNK)
                 popupMenu.getMenu().add(Menu.NONE, R.string.title_advanced_never_favorite, order++, R.string.title_advanced_never_favorite);
             popupMenu.getMenu().add(Menu.NONE, R.string.title_share, order++, R.string.title_share); // should be system whitelisted
+            popupMenu.getMenu().add(Menu.NONE, R.string.title_clipboard_copy, order++, R.string.title_clipboard_copy); // should be system whitelisted
             if (Shortcuts.can(context))
                 popupMenu.getMenu().add(Menu.NONE, R.string.title_pin, order++, R.string.title_pin);
             popupMenu.getMenu().add(Menu.NONE, R.string.title_edit_contact, order++, R.string.title_edit_contact);
@@ -260,6 +269,9 @@ public class AdapterContact extends RecyclerView.Adapter<AdapterContact.ViewHold
                     } else if (itemId == R.string.title_share) {
                         onActionShare();
                         return true;
+                    } else if (itemId == R.string.title_clipboard_copy) {
+                        onActionCopy();
+                        return true;
                     } else if (itemId == R.string.title_pin) {
                         onActionPin();
                         return true;
@@ -311,6 +323,27 @@ public class AdapterContact extends RecyclerView.Adapter<AdapterContact.ViewHold
                     }
                 }
 
+                private void onActionCopy() {
+                    ClipboardManager clipboard = Helper.getSystemService(context, ClipboardManager.class);
+                    if (clipboard == null)
+                        return;
+
+                    String copy;
+                    try {
+                        InternetAddress address = new InternetAddress(contact.email, contact.name, StandardCharsets.UTF_8.name());
+                        copy = MessageHelper.formatAddresses(new Address[]{address});
+                    } catch (UnsupportedEncodingException ex) {
+                        Log.e(ex);
+                        copy = contact.email;
+                    }
+
+                    ClipData clip = ClipData.newPlainText(context.getString(R.string.app_name), copy);
+                    clipboard.setPrimaryClip(clip);
+
+                    if (Build.VERSION.SDK_INT < Build.VERSION_CODES.TIRAMISU)
+                        ToastEx.makeText(context, R.string.title_clipboard_copied, Toast.LENGTH_LONG).show();
+                }
+
                 private void onActionPin() {
                     ShortcutInfoCompat.Builder builder = Shortcuts.getShortcut(context, contact);
                     Shortcuts.requestPinShortcut(context, builder.build());