iankelling.org Git - distro-setup/blob - i3-set-layout

   1 #!/usr/bin/python3
   2 # I, Ian Kelling, follow the GNU license recommendations at
   3 # https://www.gnu.org/licenses/license-recommendations.en.html. They
   4 # recommend that small programs, < 300 lines, be licensed under the
   5 # Apache License 2.0. This file contains or is part of one or more small
   6 # programs. If a small program grows beyond 300 lines, I plan to change
   7 # to a recommended GPL license.
   8
   9 # Copyright 2024 Ian Kelling
  10
  11 # Licensed under the Apache License, Version 2.0 (the "License");
  12 # you may not use this file except in compliance with the License.
  13 # You may obtain a copy of the License at
  14
  15 #     http://www.apache.org/licenses/LICENSE-2.0
  16
  17 # Unless required by applicable law or agreed to in writing, software
  18 # distributed under the License is distributed on an "AS IS" BASIS,
  19 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  20 # See the License for the specific language governing permissions and
  21 # limitations under the License.
  22
  23
  24 import sys
  25 from i3ipc import Connection, Event
  26
  27
  28 def find_parent(i3, window_id):
  29     """
  30         Find the parent of a given window id
  31     """
  32
  33     def finder(con, parent, gp):
  34         if con.id == window_id:
  35             return (parent, gp)
  36         for node in con.nodes:
  37             res = finder(node, con, parent)
  38             if res:
  39                 return res
  40         return None
  41
  42     return finder(i3.get_tree(), None, None)
  43
  44
  45 def set_layout(i3):
  46     """
  47         Set the layout/split for the currently
  48         focused window to either vertical or
  49         horizontal, depending on its width/height
  50     """
  51
  52     win = i3.get_tree().find_focused()
  53     # i don't use gp: todo: revert to original alternating_layout function
  54     # which did not return gp.
  55     parent, gp = find_parent(i3, win.id)
  56
  57
  58     # We never want to set the layout of a single window container,
  59     # there are already keys for that. I don't know why i3 even does
  60     # this, it is stupid. So, eliminate single window container if we
  61     # are focused on one.
  62     #
  63     # Alternatively, we could first focus the parent, but I think when
  64     # layout changes, we expect new windows to be created within that
  65     # layout.
  66     #
  67     # Todo: if the direction we are moving has a split/tabbed container
  68     # as a peer to parent, this will move our window into that container
  69     # instead of what we want. And in fact, the whole logic below is
  70     # incorrect and based on testing which did not realize that fact.
  71     #
  72     if (parent and parent.type == 'con' and len(parent.nodes) == 1):
  73         # https://unix.stackexchange.com/questions/173754/how-to-move-a-window-up-to-the-level-of-its-parent-window-in-i3wm
  74         i3.command('mark i3ha')
  75         i3.command('focus parent')
  76         i3.command('focus parent')
  77         i3.command('mark i3hb')
  78         i3.command('[con_mark="i3ha"] focus')
  79         i3.command('move window to mark i3hb')
  80         i3.command('unmark i3ha')
  81         i3.command('unmark i3hb')
  82     i3.command('layout ' + sys.argv[1])
  83
  84 def main():
  85     i3 = Connection()
  86     set_layout(i3)
  87
  88
  89 if __name__ == "__main__":
  90     main()