compute total staging area size

when show_size has been set to true (for example with :toggle_sizes)

The computation is done in background

3 files changed, 12 insertions, 6 deletions

diff --git a/src/app/app.rs b/src/app/app.rs
index fd21e35..c99b71c 100644
--- a/src/app/app.rs
+++ b/src/app/app.rs
@@ -604,7 +604,7 @@ impl App {
         con: &AppContext,
     ) -> Result<(), ProgramError> {
         while self.has_pending_task() && !dam.has_event() {
-            if self.do_pending_task(con, dam) {
+            if self.do_pending_task(app_state, con, dam) {
                 self.update_preview(con); // the selection may have changed
                 let app_cmd_context = AppCmdContext {
                     other_path: self.get_other_panel_path(),
@@ -627,13 +627,14 @@ impl App {
     /// do the next pending task
     fn do_pending_task(
         &mut self,
+        app_state: &AppState,
         con: &AppContext,
         dam: &mut Dam,
     ) -> bool {
         let screen = self.screen;
         // we start with the focused panel
         if self.panel().has_pending_task() {
-            self.mut_panel().do_pending_task(screen, con, dam);
+            self.mut_panel().do_pending_task(&app_state.stage, screen, con, dam);
             return true;
         }
         // then the other ones
@@ -641,7 +642,7 @@ impl App {
             if idx != self.active_panel_idx {
                 let panel = &mut self.panels[idx];
                 if panel.has_pending_task() {
-                    panel.do_pending_task(screen, con, dam);
+                    panel.do_pending_task(&app_state.stage, screen, con, dam);
                     return true;
                 }
             }
diff --git a/src/app/panel.rs b/src/app/panel.rs
index 1c9daa5..61cea36 100644
--- a/src/app/panel.rs
+++ b/src/app/panel.rs
@@ -13,6 +13,7 @@ use {
         errors::ProgramError,
         keys,
         skin::PanelSkin,
+        stage::*,
         task_sync::Dam,
         verb::*,
     },
@@ -106,11 +107,12 @@ impl Panel {
     /// in the dam
     pub fn do_pending_task(
         &mut self,
+        stage: &Stage,
         screen: Screen,
         con: &AppContext,
         dam: &mut Dam,
     ) {
-        self.mut_state().do_pending_task(screen, con, dam)
+        self.mut_state().do_pending_task(stage, screen, con, dam)
     }
 
     pub fn has_pending_task(&self) -> bool {
diff --git a/src/app/panel_state.rs b/src/app/panel_state.rs
index 14acbe1..ff4bee3 100644
--- a/src/app/panel_state.rs
+++ b/src/app/panel_state.rs
@@ -9,7 +9,7 @@ use {
         pattern::*,
         preview::{PreviewMode, PreviewState},
         print,
-        stage::StageState,
+        stage::*,
         task_sync::Dam,
         tree::*,
         verb::*,
@@ -650,6 +650,7 @@ pub trait PanelState {
 
     fn do_pending_task(
         &mut self,
+        _stage: &Stage,
         _screen: Screen,
         _con: &AppContext,
         _dam: &mut Dam,
@@ -658,7 +659,9 @@ pub trait PanelState {
         unreachable!();
     }
 
-    fn get_pending_task(&self) -> Option<&'static str> {
+    fn get_pending_task(
+        &self,
+    ) -> Option<&'static str> {
         None
     }