reduce number of clipboard history items by reordering them

Author: unsecretised

src/app/tile/update.rs

@@ -11,6 +11,7 @@ use iced::widget::operation::AbsoluteOffset;
 use iced::window;
 use iced::window::Id;
 use log::info;
+use rayon::iter::IntoParallelRefIterator;
 use rayon::iter::ParallelIterator;
 use rayon::slice::ParallelSliceMut;
 
@@ -408,6 +409,24 @@ pub fn handle_update(tile: &mut Tile, message: Message) -> Task<Message> {
         }
 
         Message::ClipboardHistory(content) => {
+            if !tile.clipboard_content.contains(&content) {
+                tile.clipboard_content.insert(0, content);
+                return Task::none();
+            }
+
+            let new_content_vec = tile
+                .clipboard_content
+                .par_iter()
+                .filter_map(|x| {
+                    if *x == content {
+                        None
+                    } else {
+                        Some(x.to_owned())
+                    }
+                })
+                .collect();
+
+            tile.clipboard_content = new_content_vec;
             tile.clipboard_content.insert(0, content);
             Task::none()
         }