sway/auto_switch_kbd: new version (for contest)

README.md

@@ -20,6 +20,7 @@ If you want to contribute, read CONTRIBUTION.md guidelines first
 - [firefox history in bemeny](sway/firefox_history_bemenu.sh)
 - [get app id](sway/get_app_id)
 - [mpv music](sway/mpv_music.sh)
+- [smart layout](sway/smart_layout.py)
 - [websearch](sway/websearch.sh)
 - [wsudo](sway/wsudo)
 - [ytmpv](sway/ytmpv)

sway/README.md

@@ -7,7 +7,9 @@ Requirements:
 
 Description:
 
-Switches keyboard layout from en to ru depending on cureently focues app
+Remembers keyboard layout for each window and restores it  
+You need to set the `--kb-id` to your keyboard ID that you can get via `swaymsg -t get_inputs`  
+See `--help` for more information
 
 ### autobtconnect.sh
 

sway/smart_layout.py

@@ -0,0 +1,117 @@
+#! /usr/bin/python
+from argparse import ArgumentParser
+from typing import List
+
+from i3ipc import Connection, Event, events
+
+# argparse
+parser = ArgumentParser(
+    description="""
+Remembers keyboard layout for each window and restores it
+        """
+)
+parser.add_argument(
+    "--kb-id",
+    dest="kb_id",
+    action="store",
+    help="Keyboard's ID got from `swaymsg -t get-input`",
+    required=True,
+)
+parser.add_argument(
+    "--max-win-history",
+    dest="max_win_history",
+    action="store",
+    help="Maximum window history.",
+    default=15,
+    type=int,
+)
+args = parser.parse_args()
+
+
+# constants
+KB_ID = args.kb_id
+MAX_WIN_HISTORY = args.max_win_history
+
+
+# runtime obj
+sway = Connection()
+
+data = {}
+window_list: List[int] = []
+
+
+# helper functions
+def get_current_layout_ind(conn: Connection, kb_id: str) -> int:
+    inputs = conn.get_inputs()
+
+    res = None
+    for input_ in inputs:
+        if input_.identifier == kb_id:
+            res = input_.xkb_active_layout_index
+
+    if res is None:
+        raise ValueError("Your KB_ID is wrong because there is no input with that id")
+
+    return res
+
+
+def get_current_focused_window_id(conn: Connection) -> int:
+    return conn.get_tree().find_focused().id
+
+
+def get_all_windows_id(conn: Connection) -> set:
+    return set(w.id for w in conn.get_tree().leaves())
+
+
+def get_last_window_id() -> int:
+    for window_id in window_list[1:]:
+        last_window_id = window_id
+        break
+    else:
+        last_window_id = window_list[0]
+
+    return last_window_id
+
+
+def change_kbd_layout(conn: Connection, layout_ind: int) -> None:
+    conn.command(f"input * xkb_switch_layout {layout_ind}")
+
+
+# main handler
+def handler_on_window_focus(conn: Connection, event: events.WindowEvent):
+    current_window_id = event.container.id
+
+    if current_window_id in window_list:
+        window_list.remove(current_window_id)
+    window_list.insert(0, current_window_id)
+
+    last_window_id = get_last_window_id()
+
+    current_layout_ind = get_current_layout_ind(conn, KB_ID)
+    data[last_window_id] = current_layout_ind
+    data.setdefault(current_window_id, current_layout_ind)
+
+    change_kbd_layout(conn, data[current_window_id])
+
+    if len(window_list) > MAX_WIN_HISTORY:
+        deleting_window_id = window_list.pop(-1)
+        del data[deleting_window_id]
+
+
+def on_startup(conn: Connection):
+    """Needs to register first focused window"""
+
+    current_focused_window_id = get_current_focused_window_id(conn)
+    current_layout_ind = get_current_layout_ind(conn, KB_ID)
+    window_list.append(current_focused_window_id)
+    data[current_focused_window_id] = current_layout_ind
+
+
+def main():
+    on_startup(sway)
+    sway.on(Event.WINDOW_FOCUS, handler_on_window_focus)
+    sway.main()
+
+
+if __name__ == "__main__":
+    main()