feat(lsp): improve shutdown lifecycle and response handling

- Add explicit shutdown and exit requests to LSP client
- Rename initialized message to initialized notification
- Handle initialize → send initialized notification
- Handle shutdown → send exit notification

fix(lsp): delay client teardown to allow graceful shutdown
- Close LSP client and response handlers after timeout (GLib)

feat(vte): major terminal widget improvements
- Switch to spawn_async with full environment inheritance
- Improve PROMPT_COMMAND handling for cwd tracking (OSC7)
- Enable scrollback, disable audible bell, enable scroll-on-output
- Add clipboard shortcuts (Ctrl+Shift+C/V), middle-click paste
- Track current directory changes and update UI label
- Add proper signal wiring and cleanup on destroy

feat(ui): improve Plugins dialog behavior
- Make dialog non-modal and centered on parent window
- Auto-hide on focus loss and Ctrl+Shift+P shortcut
- Ensure proper destroy-with-parent behavior

refactor: add type hints and minor cleanup
- Add explicit typing for VteWidget fields
- Improve signal naming consistency
- Minor formatting and cleanup in folding and LSP modules

plugins/code/language_server_clients/lsp_manager/client/lsp_client_events.py

@@ -15,6 +15,8 @@ from ..dto.code.lsp.lsp_messages import definition_request
 from ..dto.code.lsp.lsp_messages import implementation_request
 from ..dto.code.lsp.lsp_messages import references_request
 from ..dto.code.lsp.lsp_messages import symbols_request
+from ..dto.code.lsp.lsp_messages import shutdown_request
+from ..dto.code.lsp.lsp_messages import exit_request
 
 
 
@@ -36,9 +38,15 @@ class LSPClientEvents:
         self._init_params["initializationOptions"] = self._init_opts
         self.send_request("initialize", self._init_params)
 
-    def send_initialized_message(self):
+    def send_initialized_notification(self):
         self.send_notification("initialized")
 
+    def send_shutdown_request(self):
+        self.send_request("shutdown")
+
+    def send_exit_notification(self):
+        self.send_notification("exit")
+
     def _lsp_did_open(self, data: dict):
         method = "textDocument/didOpen"
         params = didopen_notification["params"]

plugins/code/language_server_clients/lsp_manager/dto/code/lsp/lsp_messages.py

@@ -183,7 +183,6 @@ references_request = {
 	}
 }
 
-
 symbols_request = {
 	"method": "textDocument/documentSymbol",
 	"params": {
@@ -195,3 +194,14 @@ symbols_request = {
 	    }
 	}
 }
+
+shutdown_request = {
+	"method": "shutdown",
+	"params": None
+}
+
+exit_request = {
+	"method": "exit",
+	"params": None
+}
+

plugins/code/language_server_clients/lsp_manager/lsp_manager.py

@@ -1,6 +1,9 @@
 # Python imports
 
 # Lib imports
+import gi
+
+from gi.repository import GLib
 
 # Application imports
 from libs.controllers.controller_base import ControllerBase
@@ -109,9 +112,17 @@ class LSPManager(ControllerBase):
         return True
 
     def close_client(self, lang_id: str) -> bool:
+        controller = self.client_manager.get_active_client()
+        controller.send_shutdown_request()
+
+        def _close():
             self.client_manager.close_client(lang_id)
             self.response_registry.close_handler(lang_id)
 
+            return False
+
+        GLib.timeout_add(5000, _close)
+
         return True
 
     def server_response(self, lsp_response: LSPResponseTypes | dict):

plugins/code/language_server_clients/lsp_manager/response_handlers/default.py

@@ -17,6 +17,10 @@ class DefaultHandler(BaseHandler):
 
     def handle(self, method: str, response, controller):
         match method:
+            case "initialize":
+                controller.send_initialized_notification()
+            case "shutdown":
+                controller.send_exit_notification()
             case "textDocument/completion":
                 self._handle_completion(response)
             case "textDocument/definition":

src/core/widgets/vte_widget.py

@@ -28,8 +28,8 @@ class VteWidget(Vte.Terminal):
     def __init__(self):
         super(VteWidget, self).__init__()
 
-        self.cd_cmd_prefix = ("cd".encode(), "cd ".encode())
+        self.cd_cmd_prefix: tuple = ("cd".encode(), "cd ".encode())
-        self.dont_process  = False
+        self.dont_process: bool   = False
 
         self._setup_styling()
         self._setup_signals()
@@ -48,9 +48,17 @@ class VteWidget(Vte.Terminal):
         self.set_hexpand(True)
         self.set_enable_sixel(True)
         self.set_cursor_shape( Vte.CursorShape.IBEAM )
+        self.set_audible_bell(False)
+        self.set_scroll_on_output(True)
 
     def _setup_signals(self):
-        self.connect("commit", self._commit)
+       self.connect("commit", self._handle_commit)
+       self.connect("current-directory-uri-changed", self._handle_path_change)
+       self.connect("selection-changed", self._handle_selection)
+       self.connect("button-press-event", self._on_button_press)
+       self.connect("key-press-event", self._on_key_press)
+       self.connect("key-release-event", self._on_key_release)
+       self.connect("destroy", self._handle_destroy)
 
     def _subscribe_to_events(self):
         event_system.subscribe("update_term_path", self.update_term_path)
@@ -59,35 +67,87 @@ class VteWidget(Vte.Terminal):
         ...
 
     def _do_session_spawn(self):
-        env = [
+        env_dict    = os.environ.copy()
-            "DISPLAY=:0",
+        existing_pc = env_dict.get("PROMPT_COMMAND", "")
-            "LC_ALL=C",
+        # Note: Needed for 'current-directory-uri-changed' to work.
-            "TERM='xterm-256color'",
+        #       Make sure user .bashrc doesn't affect it...
-            f"HOME='{settings_manager.path_manager.get_home_path()}'",
+        osc7        = 'printf "\\033]7;file://%s%s\\007" "$PWD"'
-            "XDG_RUNTIME_DIR='/run/user/1000'",
-            f"XAUTHORITY='{settings_manager.path_manager.get_home_path()}/.Xauthority'",
-            "HISTFILE=/dev/null",
-            "HISTSIZE=0",
-            "HISTFILESIZE=0",
-            "PS1=\\h@\\u \\W -->: ",
-        ]
 
-        self.spawn_sync(
+        env_dict.update({
+            "LC_ALL": "C",
+            "TERM": "xterm-256color",
+            "HISTFILE": "/dev/null",
+            "HISTSIZE": "0",
+            "HISTFILESIZE": "0",
+            "PS1": "\\h@\\u \\W -->: ",
+            "PROMPT_COMMAND": f"{osc7};{existing_pc}" if existing_pc else osc7,
+        })
+
+        env = [f"{k}={v}" for k, v in env_dict.items()]
+
+        self.spawn_async(
             Vte.PtyFlags.DEFAULT,
             settings_manager.path_manager.get_home_path(),
             ["/bin/bash"],
             env,
             GLib.SpawnFlags.DEFAULT,
-            None, None,
+            None, None, -1, None, None,
         )
 
         startup_cmds = [
         ]
 
+        self.set_scrollback_lines(15000)
         for i in startup_cmds:
             self.run_command(i)
 
-    def _commit(self, terminal, text, size):
+    def _handle_destroy(self, terminal):
+        logger.debug("Destroying terminal...")
+        terminal.disconnect_by_func(terminal._handle_commit)
+        terminal.disconnect_by_func(terminal._handle_path_change)
+        terminal.disconnect_by_func(terminal._handle_selection)
+        terminal.disconnect_by_func(terminal._on_button_press)
+        terminal.disconnect_by_func(terminal._on_key_press)
+        terminal.disconnect_by_func(terminal._on_key_release)
+        terminal.disconnect_by_func(terminal._handle_destroy)
+
+    def _handle_path_change(self, terminal):
+        if not hasattr(self, "label"): return
+
+        uri = terminal.get_current_directory_uri().replace("file://", "")
+
+        terminal.label.set_text(uri)
+        terminal.label.set_tooltip_text(uri)
+
+    def _handle_selection(self, *args):
+        if self.get_has_selection():
+            self.copy_primary()
+
+    def _on_button_press(self, widget, event):
+        if event.button == 2:  # middle click
+            self.paste_clipboard()
+            return True
+
+    def _on_key_press(self, widget, event):
+        ctrl_pressed  = event.state & Gdk.ModifierType.CONTROL_MASK
+        shift_pressed = event.state & Gdk.ModifierType.SHIFT_MASK
+
+        if ctrl_pressed:
+            if shift_pressed:
+                if event.keyval in [Gdk.KEY_C, Gdk.KEY_V]:
+                    if event.keyval == Gdk.KEY_C:
+                        self.copy_clipboard()
+                    elif event.keyval == Gdk.KEY_V:
+                        self.paste_clipboard()
+
+                    return True
+
+        return False
+
+    def _on_key_release(self, widget, event):
+        ...
+
+    def _handle_commit(self, terminal, text, size):
         if self.dont_process:
             self.dont_process = False
             return

src/plugins/plugins_ui.py

@@ -2,7 +2,10 @@
 
 # Lib imports
 import gi
+gi.require_version('Gdk', '3.0')
 from gi.repository import Gtk
+from gi.repository import Gdk
+from gi.repository import GLib
 
 # Application imports
 
@@ -25,6 +28,7 @@ class PluginsUI(Gtk.Dialog):
 
         self.set_title("Plugins")
         self.set_size_request(450, 530)
+        self.set_modal(False)
         self.set_deletable(False)
         self.set_skip_pager_hint(True)
         self.set_skip_taskbar_hint(True)
@@ -35,9 +39,13 @@ class PluginsUI(Gtk.Dialog):
 
         window = widget_registery.get_object("main-window")
         self.set_transient_for(window)
+        self.set_destroy_with_parent(True)
+
+        self.set_position(Gtk.WindowPosition.CENTER_ON_PARENT)
 
     def _setup_signals(self):
-        ...
+        self.connect("focus-out-event", self._on_focus_out)
+        self.connect("key-release-event", self._on_key_release)
 
     def _subscribe_to_events(self):
         ...
@@ -59,6 +67,19 @@ class PluginsUI(Gtk.Dialog):
 
         scrolled_win.show_all()
 
+    def _on_key_release(self, widget, event):
+        ctrl_pressed  = event.state & Gdk.ModifierType.CONTROL_MASK
+        shift_pressed = event.state & Gdk.ModifierType.SHIFT_MASK
+
+        if ctrl_pressed:
+            if shift_pressed:
+                if event.keyval == Gdk.KEY_P:
+                    self.hide()
+
+    def _on_focus_out(self, *args):
+        self.hide()
+        GLib.idle_add(self.hide)
+
     def add_row(self, manifest_meta, callback: callable):
         box         = Gtk.Box()
         plugin_lbl  = Gtk.Label(label = manifest_meta.manifest.name)