Refresh/reload tab view & search, fix(#146).

i18n/en/cosmic_files.ftl

@@ -2,6 +2,7 @@ cosmic-files = COSMIC Files
 empty-folder = Empty folder
 empty-folder-hidden = Empty folder (has hidden items)
 no-results = No results found
+refresh-loading = Loading...
 filesystem = Filesystem
 home = Home
 notification-in-progress = File operations are in progress.

src/app.rs

@@ -69,6 +69,8 @@ use crate::{
     tab::{self, HeadingOptions, ItemMetadata, Location, Tab, HOVER_DURATION},
 };
 
+static REFRESH_VIEW_DELAY_MS: u64 = 20; 
+
 #[derive(Clone, Debug)]
 pub enum Mode {
     App,
@@ -111,6 +113,7 @@ pub enum Action {
     OpenWith,
     Paste,
     Properties,
+    Refresh,
     Rename,
     RestoreFromTrash,
     SearchActivate,
@@ -163,6 +166,7 @@ impl Action {
             Action::OpenWith => Message::ToggleContextPage(ContextPage::OpenWith),
             Action::Paste => Message::Paste(entity_opt),
             Action::Properties => Message::ToggleContextPage(ContextPage::Properties(None)),
+            Action::Refresh => Message::Refresh(entity_opt),
             Action::Rename => Message::Rename(entity_opt),
             Action::RestoreFromTrash => Message::RestoreFromTrash(entity_opt),
             Action::SearchActivate => Message::SearchActivate,
@@ -272,6 +276,9 @@ pub enum Message {
     PendingComplete(u64),
     PendingError(u64, String),
     PendingProgress(u64, f32),
+    Refresh(Option<Entity>),
+    RefreshDelayStart(Entity, Location),
+    RefreshDelayComplete(Entity, Location),
     RescanTrash,
     Rename(Option<Entity>),
     ReplaceResult(ReplaceResult),
@@ -1849,6 +1856,28 @@ impl Application for App {
                 }
                 return self.update_notification();
             }
+            Message::Refresh(entity_opt) => {
+                let entity = entity_opt.unwrap_or_else(|| self.tab_model.active());
+                if let Some(tab) = self.tab_model.data_mut::<Tab>(entity) {
+                    let location = tab.location.clone();
+                    tab.set_items(vec![]);
+                    tab.refresh_active = true;
+                    return cosmic::command::message(Message::RefreshDelayStart(entity, location));
+                }
+                return Command::none();
+            }
+            Message::RefreshDelayComplete(entity, location) => {
+                if self.search_input.is_empty() {
+                    return self.rescan_tab(entity, location, None);
+                } else {
+                    return self.search();
+                }
+            }
+            Message::RefreshDelayStart(entity, location) => {
+                return Command::perform(tokio::time::sleep(tokio::time::Duration::from_millis(REFRESH_VIEW_DELAY_MS)), move |_| {
+                     cosmic::app::Message::App(Message::RefreshDelayComplete(entity, location))
+                });
+            }
             Message::RescanTrash => {
                 // Update trash icon if empty/full
                 let maybe_entity = self.nav_model.iter().find(|&entity| {
@@ -2207,6 +2236,9 @@ impl Application for App {
                             if let Some(selection_path) = selection_path {
                                 tab.select_path(selection_path);
                             }
+                            if tab.refresh_active {
+                                tab.refresh_active = false;
+                            }
                         }
                     }
                     _ => (),

src/key_bind.rs

@@ -48,6 +48,8 @@ pub fn key_binds() -> HashMap<KeyBind, Action> {
     bind!([Ctrl], Key::Character("v".into()), Paste);
     bind!([], Key::Named(Named::Space), Properties);
     bind!([], Key::Named(Named::F2), Rename);
+    bind!([], Key::Named(Named::F5), Refresh);
+    bind!([Ctrl], Key::Character("r".into()), Refresh);
     bind!([Ctrl], Key::Character("f".into()), SearchActivate);
     bind!([Ctrl], Key::Character("a".into()), SelectAll);
     bind!([Ctrl], Key::Character(",".into()), Settings);

src/tab.rs

@@ -1171,12 +1171,14 @@ pub struct Tab {
     pub config: TabConfig,
     pub(crate) items_opt: Option<Vec<Item>>,
     pub dnd_hovered: Option<(Location, Instant)>,
+    pub(crate) refresh_active: bool,
     scrollable_id: widget::Id,
     select_focus: Option<usize>,
     select_range: Option<(usize, usize)>,
     cached_selected: RefCell<Option<bool>>,
     clicked: Option<usize>,
     selected_clicked: bool,
+
 }
 
 fn folder_name<P: AsRef<Path>>(path: P) -> (String, bool) {
@@ -1216,6 +1218,7 @@ impl Tab {
             history,
             config,
             items_opt: None,
+            refresh_active: false,
             scrollable_id: widget::Id::unique(),
             select_focus: None,
             select_range: None,
@@ -2608,7 +2611,9 @@ impl Tab {
                         .size(64)
                         .icon()
                         .into(),
-                    widget::text(if has_hidden {
+                    widget::text(if self.refresh_active {
+                        fl!("refresh-loading")
+                    } else if has_hidden {
                         fl!("empty-folder-hidden")
                     } else if matches!(self.location, Location::Search(_, _)) {
                         fl!("no-results")