Removed empty trash, added FAQ

FAQ.md

@@ -117,7 +117,7 @@ Note that your contacts could unknowingly send malicious messages if they got in
 * [(52) Why does it take some time to reconnect to an account?](#user-content-faq52)
 * [(53) Can you stick the message action bar to the top/bottom?](#user-content-faq53)
 * [(54) How do I use a namespace prefix?](#user-content-faq54)
-
+* [(55) How can I mark all messages as read / move or delete all messages?](#user-content-faq55)
 
 [I have another question.](#support)
 
@@ -825,6 +825,14 @@ For example the Gmail spam folder is called:
 By setting the namespace prefix to *[Gmail]* FairEmail will automatically remove *[Gmail]/* from all folder names.
 
 
+<a name="faq55"></a>
+**(55) How can I mark all messages as read / move or delete all messages?**
+
+You can use multiple select for this.
+Long press the first message, don't lift your finger and slide down to the last message.
+Then use the three dot action button to execute the desired action.
+
+
 ## Support
 
 If you have another question, want to request a feature or report a bug, you can use [this forum](https://forum.xda-developers.com/android/apps-games/source-email-t3824168).

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

@@ -20,7 +20,6 @@ package eu.faircode.email;
 */
 
 import android.content.Context;
-import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.content.res.ColorStateList;
@@ -79,8 +78,7 @@ public class AdapterFolder extends RecyclerView.Adapter<AdapterFolder.ViewHolder
 
         private final static int action_synchronize_now = 1;
         private final static int action_delete_local = 2;
-        private final static int action_empty_trash = 3;
-        private final static int action_edit_properties = 4;
+        private final static int action_edit_properties = 3;
 
         ViewHolder(View itemView) {
             super(itemView);
@@ -224,11 +222,9 @@ public class AdapterFolder extends RecyclerView.Adapter<AdapterFolder.ViewHolder
 
             if (!EntityFolder.DRAFTS.equals(folder.type))
                 popupMenu.getMenu().add(Menu.NONE, action_delete_local, 2, R.string.title_delete_local);
-            if (EntityFolder.TRASH.equals(folder.type))
-                popupMenu.getMenu().add(Menu.NONE, action_empty_trash, 3, R.string.title_empty_trash);
 
             if (folder.account != null)
-                popupMenu.getMenu().add(Menu.NONE, action_edit_properties, 4, R.string.title_edit_properties);
+                popupMenu.getMenu().add(Menu.NONE, action_edit_properties, 3, R.string.title_edit_properties);
 
             popupMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
                 @Override
@@ -242,10 +238,6 @@ public class AdapterFolder extends RecyclerView.Adapter<AdapterFolder.ViewHolder
                             OnActionDeleteLocal();
                             return true;
 
-                        case action_empty_trash:
-                            onActionEmptyTrash();
-                            return true;
-
                         case action_edit_properties:
                             onActionEditProperties();
                             return true;
@@ -313,49 +305,6 @@ public class AdapterFolder extends RecyclerView.Adapter<AdapterFolder.ViewHolder
                     }.load(context, owner, args);
                 }
 
-                private void onActionEmptyTrash() {
-                    new DialogBuilderLifecycle(context, owner)
-                            .setMessage(R.string.title_empty_trash_ask)
-                            .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
-                                @Override
-                                public void onClick(DialogInterface dialog, int which) {
-
-                                    Bundle args = new Bundle();
-                                    args.putLong("id", folder.id);
-
-                                    new SimpleTask<Void>() {
-                                        @Override
-                                        protected Void onLoad(Context context, Bundle args) {
-                                            long id = args.getLong("id");
-
-                                            DB db = DB.getInstance(context);
-                                            try {
-                                                db.beginTransaction();
-
-                                                for (Long mid : db.message().getMessageByFolder(id)) {
-                                                    EntityMessage message = db.message().getMessage(mid);
-                                                    EntityOperation.queue(db, message, EntityOperation.DELETE);
-                                                }
-
-                                                db.setTransactionSuccessful();
-                                            } finally {
-                                                db.endTransaction();
-                                            }
-
-                                            return null;
-                                        }
-
-                                        @Override
-                                        protected void onException(Bundle args, Throwable ex) {
-                                            Helper.unexpectedError(context, owner, ex);
-                                        }
-                                    }.load(context, owner, args);
-                                }
-                            })
-                            .setNegativeButton(android.R.string.cancel, null)
-                            .show();
-                }
-
                 private void onActionEditProperties() {
                     LocalBroadcastManager lbm = LocalBroadcastManager.getInstance(context);
                     lbm.sendBroadcast(

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

@@ -204,10 +204,8 @@
 
     <string name="title_synchronize_now">Synchronize now</string>
     <string name="title_delete_local">Delete local messages</string>
-    <string name="title_empty_trash">Empty trash</string>
     <string name="title_edit_properties">Edit properties</string>
 
-    <string name="title_empty_trash_ask">Delete all trashed messages permanently?</string>
     <string name="title_delete_operation">Delete operations with an error message?</string>
 
     <string name="title_folder_name">Folder name</string>