59163f0469
- Alternate screen buffer (smcup/rmcup) for mc, vim, htop, less - 256-color and truecolor rendering (dynamic tag creation) - Reverse video and strikethrough attributes - write_process_input bridge (DA/DSR responses to SSH) - DECCKM application cursor keys for arrow navigation - Alt+key combinations (mc panels, readline word nav) - Shift+Arrow / Ctrl+Arrow with xterm modifier encoding - Shift+Tab (backtab) for reverse completion - Bracketed paste mode for clean multi-line paste - Mouse tracking (basic, button, any-event, SGR extended) - Incremental UTF-8 decoder (handles split multi-byte) - Cursor hidden state (DECTCEM) respected - pyte dirty set for optimized rendering - Numpad key support - Professional copy/paste UX: - Ctrl+C always sends SIGINT - Ctrl+Shift+C/V for copy/paste - Right-click context menu with Copy/Paste/Select All - Double-click to select word - Smooth mousewheel scroll (3 lines in alt screen) - Thread-safe session management (all state on main thread) - Resize debounce reduced to 100ms - Send errors trigger disconnect notification Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
148 lines
5.0 KiB
Python
148 lines
5.0 KiB
Python
"""
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Terminal tab — persistent interactive SSH shell via ShellSession + TerminalWidget.
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"""
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import queue
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import threading
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import time
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import customtkinter as ctk
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from core.ssh_client import ShellSession
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from core.i18n import t
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class TerminalTab(ctk.CTkFrame):
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def __init__(self, master, store):
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super().__init__(master, fg_color="transparent")
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self.store = store
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self._current_alias: str | None = None
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self._session: ShellSession | None = None
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self._reconnect_count = 0
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self._max_reconnect = 3
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self._intentional_disconnect = False
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# Import here to avoid circular issues
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from gui.widgets.terminal_widget import TerminalWidget
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self._terminal = TerminalWidget(
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self,
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send_callback=self._send_to_shell,
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resize_callback=self._on_resize,
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)
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self._terminal.pack(fill="both", expand=True, padx=5, pady=5)
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self._terminal.set_status(t("term_disconnected"), "#888888")
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# Thread-safe data queue
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self._data_queue: queue.Queue[bytes] = queue.Queue()
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def set_server(self, alias: str | None):
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if alias == self._current_alias:
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return
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self._disconnect()
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self._current_alias = alias
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if alias:
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self._connect()
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else:
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self._terminal.reset()
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self._terminal.set_status(t("term_disconnected"), "#888888")
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def _connect(self):
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if not self._current_alias:
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return
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server = self.store.get_server(self._current_alias)
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if not server:
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self._terminal.set_status(
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t("server_not_found").format(alias=self._current_alias), "#ff4444"
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)
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return
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alias = self._current_alias
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self._terminal.set_status(t("term_connecting").format(alias=alias), "#ccaa00")
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self._terminal.reset()
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self._intentional_disconnect = False
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def _do_connect():
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try:
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key_path = self.store.get_ssh_key_path()
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cols, rows = self._terminal.get_size()
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session = ShellSession(server, key_path, cols=cols, rows=rows)
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session.on_data = self._on_data_received
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session.on_disconnect = self._on_disconnected
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session.connect()
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# Set session on main thread to avoid races
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def _set_session():
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self._session = session
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self._reconnect_count = 0
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self._terminal.set_status(
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t("term_connected").format(alias=alias), "#44cc44"
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)
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self._terminal.focus_terminal()
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self.after(0, _set_session)
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except Exception as e:
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self.after(0, lambda: self._terminal.set_status(
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t("term_connect_failed").format(error=str(e)), "#ff4444"
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))
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threading.Thread(target=_do_connect, daemon=True).start()
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def _disconnect(self):
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self._intentional_disconnect = True
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session = self._session
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self._session = None
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if session:
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session.disconnect()
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def _on_data_received(self, data: bytes):
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"""Called from SSH thread — put data in thread-safe queue."""
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self._data_queue.put(data)
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self.after(0, self._flush_data_queue)
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def _flush_data_queue(self):
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"""Called on main thread — drain queue and feed terminal."""
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chunks = []
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try:
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while True:
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chunks.append(self._data_queue.get_nowait())
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except queue.Empty:
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pass
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if chunks:
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self._terminal.feed(b"".join(chunks))
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def _on_disconnected(self):
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"""Called from SSH read thread."""
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def _handle():
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if self._intentional_disconnect:
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self._terminal.set_status(t("term_disconnected"), "#888888")
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return
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self._session = None
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if self._reconnect_count < self._max_reconnect:
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self._reconnect_count += 1
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n = self._reconnect_count
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mx = self._max_reconnect
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self._terminal.set_status(
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t("term_reconnecting").format(n=n, max=mx), "#ccaa00"
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)
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def _retry():
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time.sleep(1)
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if not self._intentional_disconnect and self._current_alias:
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self.after(0, self._connect)
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threading.Thread(target=_retry, daemon=True).start()
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else:
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self._terminal.set_status(t("term_reconnect_fail"), "#ff4444")
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self.after(0, _handle)
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def _send_to_shell(self, data: bytes):
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session = self._session # local ref for thread safety
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if session and session.connected:
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session.send(data)
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def _on_resize(self, cols: int, rows: int):
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session = self._session # local ref for thread safety
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if session and session.connected:
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session.resize(cols, rows)
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