process editor: write keyboard input to pty

nested/src/singleton/buffer.rs

@@ -14,15 +14,15 @@ use {
     }
 };
 
-pub struct SingletonBufferView<T: Clone + Eq + Send + Sync + 'static>(Arc<RwLock<T>>);
+pub struct SingletonBufferView<T: Clone + Send + Sync + 'static>(Arc<RwLock<T>>);
 
 impl<T> View for SingletonBufferView<T>
-where T: Clone + Eq + Send + Sync + 'static {
+where T: Clone + Send + Sync + 'static {
     type Msg = ();
 }
 
 impl<T> SingletonView for SingletonBufferView<T>
-where T: Clone + Eq + Send + Sync + 'static {
+where T: Clone + Send + Sync + 'static {
     type Item = T;
 
     fn get(&self) -> Self::Item {
@@ -32,13 +32,13 @@ where T: Clone + Eq + Send + Sync + 'static {
 
 #[derive(Clone)]
 pub struct SingletonBuffer<T>
-where T: Clone + Eq + Send + Sync + 'static {
+where T: Clone + Send + Sync + 'static {
     value: Arc<RwLock<T>>,
     cast: Arc<RwLock<ObserverBroadcast<dyn SingletonView<Item = T>>>>
 }
 
 impl<T> SingletonBuffer<T>
-where T: Clone + Eq + Send + Sync + 'static {
+where T: Clone + Send + Sync + 'static {
     pub fn new(
         value: T,
         port: InnerViewPort<dyn SingletonView<Item = T>>
@@ -56,6 +56,16 @@ where T: Clone + Eq + Send + Sync + 'static {
         self.value.read().unwrap().clone()
     }
 
+    pub fn set(&mut self, new_value: T) {
+        let mut v = self.value.write().unwrap();
+        *v = new_value;
+        drop(v);
+        self.cast.notify(&());
+    }
+}
+/*
+impl<T> SingletonBuffer<T>
+where T: Clone + Eq + Send + Sync + 'static {
     pub fn set(&mut self, new_value: T) {
         let mut v = self.value.write().unwrap();
         if *v != new_value {
@@ -65,6 +75,6 @@ where T: Clone + Eq + Send + Sync + 'static {
         }
     }
 }
-
+*/
 // TODO: impl Deref & DerefMut
 

nested/src/terminal/ansi_parser.rs

@@ -27,7 +27,7 @@ pub fn read_ansi_from<R: Read + Unpin>(ansi_reader: &mut R, port: InnerViewPort<
         cursor: Point2::new(0, 0),
         style: TerminalStyle::default(),
         invert: false,
-        term_width: 80,
+        term_width: 120,
 
         cursor_save: Point2::new(0, 0),
 
@@ -159,7 +159,7 @@ impl Perform for PerfAtom {
             b'\t' => self.horizontal_tab(),
             0x8 => self.backspace(),
             _ => {
-                eprintln!("unhandled execute byte {:02x}", byte);
+                //eprintln!("unhandled execute byte {:02x}", byte);
             }
         }
     }

shell/src/main.rs

@@ -34,7 +34,9 @@ use{
             TerminalEvent,
             make_label,
             TerminalView,
-            TerminalEditor},
+            TerminalEditor,
+            TerminalEditorResult
+        },
         string_editor::{StringEditor},
         tree_nav::{TreeNav, TreeNavResult, TreeCursor, TerminalTreeEditor},
         list::{SExprView, ListCursorMode, ListEditor, ListEditorStyle},
@@ -82,7 +84,11 @@ impl IndexView<Point2<i16>> for Plot {
             if let Some(cur_val) = self.data.get(&(pt.x as usize)) {
                 if cur_val <= self.limit {
                     if pt.y == (self.limit - cur_val) as i16 {
-                        return Some(TerminalAtom::from('*'));
+                        return Some(TerminalAtom::from(
+                            if cur_val < 4 { 'o' }
+                            else if cur_val < 8 { 'O' }
+                            else { '*' }
+                        ));
                     }
                 }
                 if pt.x > 0 {
@@ -98,7 +104,7 @@ impl IndexView<Point2<i16>> for Plot {
                                 pt.y > (self.limit - cur_val) as i16
                             )
                         {
-                            return Some(TerminalAtom::from('|'));
+                            return Some(TerminalAtom::from('.'));
                         }
                     }
                 }
@@ -272,66 +278,8 @@ async fn main() {
                     }
                 }
             );
-            
+
             loop {
-                let ev = term.next_event().await;
-                match ev {
-                    TerminalEvent::Resize(new_size) => {
-                        cur_size.set(new_size);
-                        term_port.inner().get_broadcast().notify(&IndexArea::Full);
-                    }
-                    TerminalEvent::Input(Event::Key(Key::Ctrl('c'))) |
-                    TerminalEvent::Input(Event::Key(Key::Ctrl('g'))) |
-                    TerminalEvent::Input(Event::Key(Key::Ctrl('d'))) => break,
-
-                    TerminalEvent::Input(Event::Key(Key::Left)) => {
-                        process_list_editor.pxev();
-                    }
-                    TerminalEvent::Input(Event::Key(Key::Right)) => {
-                        process_list_editor.nexd();
-                    }
-                    TerminalEvent::Input(Event::Key(Key::Up)) => {
-                        if process_list_editor.up() == TreeNavResult::Exit {
-                            process_list_editor.dn();
-                            process_list_editor.goto_home();
-                        }
-                    }
-                    TerminalEvent::Input(Event::Key(Key::Down)) => {
-                        if process_list_editor.dn() == TreeNavResult::Continue {
-                            process_list_editor.goto_home();
-                        }
-                    }
-                    TerminalEvent::Input(Event::Key(Key::Home)) => {
-                        process_list_editor.goto_home();
-                    }
-                    TerminalEvent::Input(Event::Key(Key::End)) => {
-                        process_list_editor.goto_end();
-                    }
-                    TerminalEvent::Input(Event::Key(Key::Char('\n'))) => {
-                        if let Some(launcher) = process_list_editor.get_item() {
-                            launcher.write().unwrap().launch_pty2();
-                        }
-                    }
-
-                    ev => {
-                        if process_list_editor.get_cursor().leaf_mode == ListCursorMode::Select {
-                            match ev {
-                                TerminalEvent::Input(Event::Key(Key::Char('l'))) => { process_list_editor.up(); },
-                                TerminalEvent::Input(Event::Key(Key::Char('a'))) => { process_list_editor.dn(); },
-                                TerminalEvent::Input(Event::Key(Key::Char('i'))) => { process_list_editor.pxev(); },
-                                TerminalEvent::Input(Event::Key(Key::Char('e'))) => { process_list_editor.nexd(); },
-                                TerminalEvent::Input(Event::Key(Key::Char('u'))) => { process_list_editor.goto_home(); },
-                                TerminalEvent::Input(Event::Key(Key::Char('o'))) => { process_list_editor.goto_end(); },
-                                _ => {
-                                    process_list_editor.handle_terminal_event(&ev);
-                                }
-                            }
-                        } else {
-                            process_list_editor.handle_terminal_event(&ev);
-                        }
-                    }
-                }
-
                 status_chars.clear();
                 let cur = process_list_editor.get_cursor();
 
@@ -360,6 +308,79 @@ async fn main() {
                         status_chars.push(TerminalAtom::new(c, TerminalStyle::fg_color((200, 200, 20))));
                     }
                 }
+
+                let ev = term.next_event().await;
+
+                if let TerminalEvent::Resize(new_size) = ev {
+                    cur_size.set(new_size);
+                    term_port.inner().get_broadcast().notify(&IndexArea::Full);
+                    continue;
+                }
+
+                if let Some(process_editor) = process_list_editor.get_item() {
+                    let mut pe = process_editor.write().unwrap();
+                    if pe.is_captured() {
+                        if let TerminalEditorResult::Exit = pe.handle_terminal_event(&ev) {
+                            drop(pe);
+                            process_list_editor.up();
+                            process_list_editor.nexd();
+                        }
+                        continue;
+                    }
+                }
+
+                match ev {
+                    TerminalEvent::Input(Event::Key(Key::Ctrl('d'))) => break,
+                    TerminalEvent::Input(Event::Key(Key::Ctrl('l'))) => {
+                        process_list_editor.goto(TreeCursor {
+                            leaf_mode: ListCursorMode::Insert,
+                            tree_addr: vec![ 0 ]
+                        });
+                        process_list_editor.data.clear();
+                    },
+                    TerminalEvent::Input(Event::Key(Key::Left)) => {
+                        process_list_editor.pxev();
+                    }
+                    TerminalEvent::Input(Event::Key(Key::Right)) => {
+                        process_list_editor.nexd();
+                    }
+                    TerminalEvent::Input(Event::Key(Key::Up)) => {
+                        if process_list_editor.up() == TreeNavResult::Exit {
+                            process_list_editor.dn();
+                            process_list_editor.goto_home();
+                        }
+                    }
+                    TerminalEvent::Input(Event::Key(Key::Down)) => {
+                        if process_list_editor.dn() == TreeNavResult::Continue {
+                            process_list_editor.goto_home();
+                        }
+                    }
+                    TerminalEvent::Input(Event::Key(Key::Home)) => {
+                        process_list_editor.goto_home();
+                    }
+                    TerminalEvent::Input(Event::Key(Key::End)) => {
+                        process_list_editor.goto_end();
+                    }
+                    ev => {
+                        if process_list_editor.get_cursor().leaf_mode == ListCursorMode::Select {
+                            match ev {
+                                TerminalEvent::Input(Event::Key(Key::Char('l'))) => { process_list_editor.up(); },
+                                TerminalEvent::Input(Event::Key(Key::Char('a'))) => { process_list_editor.dn(); },
+                                TerminalEvent::Input(Event::Key(Key::Char('i'))) => { process_list_editor.pxev(); },
+                                TerminalEvent::Input(Event::Key(Key::Char('e'))) => { process_list_editor.nexd(); },
+                                TerminalEvent::Input(Event::Key(Key::Char('u'))) => { process_list_editor.goto_home(); },
+                                TerminalEvent::Input(Event::Key(Key::Char('o'))) => { process_list_editor.goto_end(); },
+                                _ => {
+                                    process_list_editor.handle_terminal_event(&ev);
+                                }
+                            }
+                        } else {
+                            if let TerminalEditorResult::Exit = process_list_editor.handle_terminal_event(&ev) {
+                                process_list_editor.nexd();
+                            }
+                        }
+                    }
+                }
             }
 
             drop(term);

shell/src/process.rs

@@ -15,7 +15,7 @@ use {
         vec::VecBuffer,
         terminal::{TerminalAtom, TerminalStyle, TerminalView, TerminalEvent, TerminalEditor, TerminalEditorResult, make_label},
         tree_nav::{TreeNav, TreeNavResult, TerminalTreeEditor, TreeCursor},
-        list::{ListEditor, ListEditorStyle, sexpr::ListDecoration},
+        list::{ListCursorMode, ListEditor, ListEditorStyle, sexpr::ListDecoration},
         string_editor::CharEditor,
     }
 };
@@ -74,9 +74,11 @@ pub struct ProcessLauncher {
         >,
     pty: Option<crate::pty::PTY>,
     ptybox: Arc<RwLock<crate::ascii_box::AsciiBox>>,
+    suspended: bool,
 
     pty_port: ViewPort<dyn TerminalView>,
-    
+    status_port: ViewPort<dyn SingletonView<Item = Option<portable_pty::ExitStatus>>>,
+
     comp_port: ViewPort<dyn TerminalView>,
     compositor: Arc<RwLock<nested::terminal::TerminalCompositor>>
 }
@@ -84,6 +86,7 @@ pub struct ProcessLauncher {
 impl ProcessLauncher {
     pub fn new() -> Self {
         let pty_port = ViewPort::new();
+        let status_port = ViewPort::new();
         let comp_port = ViewPort::new();
         let box_port = ViewPort::<dyn TerminalView>::new();
         let compositor = nested::terminal::TerminalCompositor::new(comp_port.inner());
@@ -125,21 +128,16 @@ impl ProcessLauncher {
                     pty_port.outer()
                         .map_item(|_,a:&TerminalAtom| a.add_style_back(TerminalStyle::fg_color((230, 230, 230)))),
                     box_port.inner()
-                ),
+            ),
+            suspended: false,
             pty_port,
+            status_port,
             comp_port,
             compositor
         }
     }
 
-    pub fn launch_pty2(&mut self) {
+    pub fn launch_pty(&mut self) {
-        self.launch_pty(self.pty_port.inner());
-    }
-
-    pub fn launch_pty(&mut self, port: InnerViewPort<dyn TerminalView>) -> Option<crate::pty::PTY> {
-        self.up();
-        self.up();
-
         let mut strings = Vec::new();
 
         let v = self.cmd_editor.get_data_port().get_view().unwrap();
@@ -153,11 +151,18 @@ impl ProcessLauncher {
             let mut cmd = crate::pty::CommandBuilder::new(strings[0].as_str());
             cmd.args(&strings[1..]);
 
-            crate::pty::PTY::new(cmd, port)
+            self.cmd_editor.goto(TreeCursor {
-        } else {
+                leaf_mode: ListCursorMode::Insert,
-            None
+                tree_addr: vec![]
+            });
+            
+            self.pty = crate::pty::PTY::new(cmd, self.pty_port.inner(), self.status_port.inner());
         }
     }
+
+    pub fn is_captured(&self) -> bool {
+        self.pty.is_some() && !self.suspended
+    }
 }
 
 impl TerminalEditor for ProcessLauncher {
@@ -166,27 +171,94 @@ impl TerminalEditor for ProcessLauncher {
     }
 
     fn handle_terminal_event(&mut self, event: &TerminalEvent) -> TerminalEditorResult {
+
+        // todo: move to observer of status view
+        if let Some(status) = self.status_port.outer().get_view().get() {
+            self.pty = None;
+            self.suspended = false;
+        }
+
         match event {
-            TerminalEvent::Input(Event::Key(Key::Char('\n'))) => {
+            TerminalEvent::Input(Event::Key(Key::Ctrl('c'))) => {
-                // launch command
+                self.pty = None;
-                self.cmd_editor.up();
+                self.suspended = false;
-                self.cmd_editor.up();
+                self.cmd_editor.goto(TreeCursor {
+                    leaf_mode: ListCursorMode::Insert,
+                    tree_addr: vec![]
+                });                
+                TerminalEditorResult::Exit
+            },
+            TerminalEvent::Input(Event::Key(Key::Ctrl('z'))) => {
+                self.suspended = true;
+                self.cmd_editor.goto(TreeCursor {
+                    leaf_mode: ListCursorMode::Insert,
+                    tree_addr: vec![]
+                });
                 TerminalEditorResult::Exit
             }
-
+            event => {
-            event => self.cmd_editor.handle_terminal_event(event)
+                if let Some(pty) = self.pty.as_mut() {
+                    pty.handle_terminal_event(event);
+                    TerminalEditorResult::Continue
+                } else {
+                    match event {
+                        TerminalEvent::Input(Event::Key(Key::Char('\n'))) => {
+                            // launch command
+                            self.launch_pty();
+                            TerminalEditorResult::Continue
+                        }
+                        event => self.cmd_editor.handle_terminal_event(event)                    
+                    }
+                }
+            }
         }
     }    
 }
 
 impl TreeNav for ProcessLauncher {
-    fn get_cursor(&self) -> TreeCursor { self.cmd_editor.get_cursor() }
+    fn get_cursor(&self) -> TreeCursor {
-    fn goto(&mut self, cur: TreeCursor) -> TreeNavResult  { self.cmd_editor.goto(cur) }
+        self.cmd_editor.get_cursor()
-    fn goto_home(&mut self) -> TreeNavResult  { self.cmd_editor.goto_home() }
+    }
-    fn goto_end(&mut self) -> TreeNavResult  { self.cmd_editor.goto_end() }
+
-    fn pxev(&mut self) -> TreeNavResult  { self.cmd_editor.pxev() }
+    fn goto(&mut self, cur: TreeCursor) -> TreeNavResult {
-    fn nexd(&mut self) -> TreeNavResult  { self.cmd_editor.nexd() }
+        self.suspended = false;
-    fn up(&mut self) -> TreeNavResult { self.cmd_editor.up() }
+        if let Some(status) = self.status_port.outer().get_view().get() {
-    fn dn(&mut self) -> TreeNavResult { self.cmd_editor.dn() }
+            self.pty = None;
+        }
+
+        if self.pty.is_none() {
+            self.cmd_editor.goto(cur)
+        } else {
+            self.cmd_editor.goto(TreeCursor {
+                leaf_mode: ListCursorMode::Select,
+                tree_addr: vec![]
+            });
+            TreeNavResult::Continue
+        }
+    }
+
+    fn goto_home(&mut self) -> TreeNavResult {
+        self.cmd_editor.goto_home()
+    }
+
+    fn goto_end(&mut self) -> TreeNavResult {
+        self.cmd_editor.goto_end()
+    }
+
+    fn pxev(&mut self) -> TreeNavResult {
+        self.cmd_editor.pxev()
+    }
+
+    fn nexd(&mut self) -> TreeNavResult {
+        self.cmd_editor.nexd()
+    }
+
+    fn up(&mut self) -> TreeNavResult {
+        self.cmd_editor.up()
+    }
+
+    fn dn(&mut self) -> TreeNavResult {
+        self.cmd_editor.dn()
+    }
 }
 

shell/src/pty.rs

@@ -4,7 +4,8 @@ use {
     std::sync::Mutex,
     nested::{
         core::{InnerViewPort},
-        terminal::{TerminalView, TerminalEvent}
+        singleton::{SingletonView, SingletonBuffer},
+        terminal::{TerminalView, TerminalEvent, TerminalEditorResult}
     }
 };
 
@@ -13,20 +14,20 @@ pub use portable_pty::CommandBuilder;
 //<<<<>>>><<>><><<>><<<*>>><<>><><<>><<<<>>>>
 
 pub struct PTY {
-    master: Mutex<Box<dyn portable_pty::MasterPty + Send>>,
+    master: Mutex<Box<dyn portable_pty::MasterPty + Send>>
-    child: Box<dyn portable_pty::Child + Send + Sync>
 }
 
 impl PTY {
     pub fn new(
         cmd: portable_pty::CommandBuilder,
-        port: InnerViewPort<dyn TerminalView>
+        term_port: InnerViewPort<dyn TerminalView>,
+        status_port: InnerViewPort<dyn SingletonView<Item = Option<portable_pty::ExitStatus>>>
     ) -> Option<Self> {
 
         // Create a new pty
         let mut pair = portable_pty::native_pty_system().openpty(portable_pty::PtySize {
             rows: 25,
-            cols: 80,
+            cols: 120,
 
             // Not all systems support pixel_width, pixel_height,
             // but it is good practice to set it to something
@@ -37,37 +38,79 @@ impl PTY {
             pixel_height: 0,
         }).unwrap();
 
-        if let Ok(child) = pair.slave.spawn_command(cmd) {
+        if let Ok(mut child) = pair.slave.spawn_command(cmd) {
             let mut reader = pair.master.try_clone_reader().unwrap();
 
             async_std::task::spawn_blocking(
                 move || {
-                    nested::terminal::ansi_parser::read_ansi_from(&mut reader, port);
+                    nested::terminal::ansi_parser::read_ansi_from(&mut reader, term_port);
                 });
-            
+
+            async_std::task::spawn_blocking(
+                move || {
+                    let mut status_buf = SingletonBuffer::new(None, status_port);
+                    if let Ok(status) = child.wait() {
+                        status_buf.set(Some(status));
+                    }
+                }
+            );
+
             Some(PTY {
-                master: Mutex::new(pair.master),
+                master: Mutex::new(pair.master)
-                child
             })
         } else {
             None
         }
     }
 
-    pub fn get_status(&mut self) -> bool {
+    pub fn handle_terminal_event(&mut self, event: &TerminalEvent) -> TerminalEditorResult {
-        if let Ok(Some(status)) = self.child.try_wait() {
-            true
-        } else {
-            false
-        }
-    }
-
-    pub fn handle_terminal_event(&mut self, event: &TerminalEvent) {
         match event {
+            TerminalEvent::Input(Event::Key(Key::Char('\n'))) => {
+                self.master.lock().unwrap().write(&[13]).unwrap();
+                TerminalEditorResult::Continue
+            },
             TerminalEvent::Input(Event::Key(Key::Char(c))) => {
                 write!(self.master.lock().unwrap(), "{}", c);
+                TerminalEditorResult::Continue
+            },
+            TerminalEvent::Input(Event::Key(Key::Esc)) => {
+                self.master.lock().unwrap().write(&[0x1b]).unwrap();
+                TerminalEditorResult::Continue
+            }
+            TerminalEvent::Input(Event::Key(Key::Backspace)) => {
+                self.master.lock().unwrap().write(&[0x8]).unwrap();
+                TerminalEditorResult::Continue
+            }
+            TerminalEvent::Input(Event::Key(Key::F(n))) => {
+                self.master.lock().unwrap().write(&[
+                    0x1b,
+                    0x0a,
+                    match n {
+                        11 => 133,
+                        12 => 134,
+                        n => 58 + n
+                    }
+                ]).unwrap();
+                TerminalEditorResult::Continue
+            }
+            TerminalEvent::Input(Event::Key(Key::Up)) => {
+                self.master.lock().unwrap().write(&[0, b'\x1B', b'[', b'A']).unwrap();
+                TerminalEditorResult::Continue
+            }
+            TerminalEvent::Input(Event::Key(Key::Down)) => {
+                self.master.lock().unwrap().write(&[0, b'\x1B', b'[', b'B']).unwrap();
+                TerminalEditorResult::Continue
+            }
+            TerminalEvent::Input(Event::Key(Key::Right)) => {
+                self.master.lock().unwrap().write(&[0, b'\x1B', b'[', b'C']).unwrap();
+                TerminalEditorResult::Continue
+            }
+            TerminalEvent::Input(Event::Key(Key::Left)) => {
+                self.master.lock().unwrap().write(&[0, b'\x1B', b'[', b'D']).unwrap();
+                TerminalEditorResult::Continue
             }
             _ => {
+                TerminalEditorResult::Exit
             }
         }
     }