Introduce DoneCLosingPane message to ensure atomicity in state change

src/common/errors.rs

@@ -327,6 +327,7 @@ pub enum AppContext {
     ToPty,
     ToPlugin,
     ToScreen,
+    DoneClosingPane,
 }
 
 impl From<&AppInstruction> for AppContext {
@@ -337,6 +338,7 @@ impl From<&AppInstruction> for AppContext {
             AppInstruction::ToPty(_) => AppContext::ToPty,
             AppInstruction::ToPlugin(_) => AppContext::ToPlugin,
             AppInstruction::ToScreen(_) => AppContext::ToScreen,
+            AppInstruction::DoneClosingPane => AppContext::DoneClosingPane,
         }
     }
 }

src/common/mod.rs

@@ -9,7 +9,7 @@ pub mod setup;
 pub mod utils;
 pub mod wasm_vm;
 
-use std::io::{BufWriter, Write};
+use std::io::Write;
 use std::path::{Path, PathBuf};
 use std::sync::mpsc;
 use std::thread;
@@ -51,6 +51,7 @@ pub enum ServerInstruction {
     NewClient(String),
     ToPty(PtyInstruction),
     ToScreen(ScreenInstruction),
+    DoneClosingPane,
     ClosePluginPane(u32),
     Exit,
 }
@@ -60,6 +61,7 @@ pub enum ClientInstruction {
     ToScreen(ScreenInstruction),
     ClosePluginPane(u32),
     Error(String),
+    DoneClosingPane,
     Exit,
 }
 
@@ -177,6 +179,7 @@ pub enum AppInstruction {
     ToPty(PtyInstruction),
     ToScreen(ScreenInstruction),
     ToPlugin(PluginInstruction),
+    DoneClosingPane,
 }
 
 impl From<ClientInstruction> for AppInstruction {
@@ -187,6 +190,7 @@ impl From<ClientInstruction> for AppInstruction {
             ClientInstruction::ClosePluginPane(p) => {
                 AppInstruction::ToPlugin(PluginInstruction::Unload(p))
             }
+            ClientInstruction::DoneClosingPane => AppInstruction::DoneClosingPane,
             ClientInstruction::Exit => AppInstruction::Exit,
         }
     }
@@ -202,9 +206,7 @@ pub fn start(mut os_input: Box<dyn OsApi>, opts: CliArgs, config: Config) {
         .write(take_snapshot.as_bytes())
         .unwrap();
 
-    env::set_var(&"ZELLIJ", "0");
+    let mut command_is_executing = CommandIsExecuting::new();
-
-    let command_is_executing = CommandIsExecuting::new();
 
     let full_screen_ws = os_input.get_terminal_size_using_fd(0);
     os_input.set_raw_mode(0);
@@ -379,7 +381,6 @@ pub fn start(mut os_input: Box<dyn OsApi>, opts: CliArgs, config: Config) {
                         }
                         ScreenInstruction::CloseFocusedPane => {
                             screen.get_active_tab_mut().unwrap().close_focused_pane();
-                            command_is_executing.done_closing_pane();
                             screen.render();
                         }
                         ScreenInstruction::SetSelectable(id, selectable) => {
@@ -403,7 +404,6 @@ pub fn start(mut os_input: Box<dyn OsApi>, opts: CliArgs, config: Config) {
                         }
                         ScreenInstruction::ClosePane(id) => {
                             screen.get_active_tab_mut().unwrap().close_pane(id);
-                            command_is_executing.done_closing_pane();
                             screen.render();
                         }
                         ScreenInstruction::ToggleActiveTerminalFullscreen => {
@@ -420,7 +420,6 @@ pub fn start(mut os_input: Box<dyn OsApi>, opts: CliArgs, config: Config) {
                         ScreenInstruction::SwitchTabPrev => screen.switch_tab_prev(),
                         ScreenInstruction::CloseTab => {
                             screen.close_tab();
-                            command_is_executing.done_closing_pane();
                         }
                         ScreenInstruction::ApplyLayout((layout, new_pane_pids)) => {
                             screen.apply_layout(Layout::new(layout), new_pane_pids);
@@ -539,6 +538,7 @@ pub fn start(mut os_input: Box<dyn OsApi>, opts: CliArgs, config: Config) {
             let send_screen_instructions = send_screen_instructions.clone();
             let send_plugin_instructions = send_plugin_instructions.clone();
             let send_app_instructions = send_app_instructions.clone();
+            let command_is_executing = command_is_executing.clone();
             let os_input = os_input.clone();
             let config = config;
             move || {
@@ -612,6 +612,7 @@ pub fn start(mut os_input: Box<dyn OsApi>, opts: CliArgs, config: Config) {
             AppInstruction::ToPty(instruction) => {
                 let _ = send_server_instructions.send(ServerInstruction::ToPty(instruction));
             }
+            AppInstruction::DoneClosingPane => command_is_executing.done_closing_pane(),
         }
     }
 

src/main.rs

@@ -5,7 +5,7 @@ mod server;
 
 use client::{boundaries, layout, panes, tab};
 use common::{
-    command_is_executing, errors, ipc, os_input_output, pty_bus, screen, start, utils, wasm_vm,
+    command_is_executing, errors, os_input_output, pty_bus, screen, start, utils, wasm_vm,
     IpcSenderWithContext, ServerInstruction,
 };
 use directories_next::ProjectDirs;

src/server/mod.rs

@@ -1,5 +1,4 @@
 use crate::cli::CliArgs;
-use crate::command_is_executing::CommandIsExecuting;
 use crate::common::{
 	ChannelWithContext, ClientInstruction, IpcSenderWithContext, SenderType, SenderWithContext,
 	ServerInstruction,
@@ -88,8 +87,20 @@ pub fn start_server(os_input: Box<dyn OsApi>, opts: CliArgs) -> thread::JoinHand
 							.unwrap();
 					}
 				}
-				PtyInstruction::ClosePane(id) => pty_bus.close_pane(id),
+				PtyInstruction::ClosePane(id) => {
-				PtyInstruction::CloseTab(ids) => pty_bus.close_tab(ids),
+					pty_bus.close_pane(id);
+					pty_bus
+						.send_server_instructions
+						.send(ServerInstruction::DoneClosingPane)
+						.unwrap();
+				}
+				PtyInstruction::CloseTab(ids) => {
+					pty_bus.close_tab(ids);
+					pty_bus
+						.send_server_instructions
+						.send(ServerInstruction::DoneClosingPane)
+						.unwrap();
+				}
 				PtyInstruction::Exit => {
 					break;
 				}
@@ -149,6 +160,11 @@ pub fn start_server(os_input: Box<dyn OsApi>, opts: CliArgs) -> thread::JoinHand
 							.send(ClientInstruction::ToScreen(instr))
 							.unwrap();
 					}
+					ServerInstruction::DoneClosingPane => {
+						send_client_instructions[0]
+							.send(ClientInstruction::DoneClosingPane)
+							.unwrap();
+					}
 					ServerInstruction::ClosePluginPane(pid) => {
 						send_client_instructions[0]
 							.send(ClientInstruction::ClosePluginPane(pid))