general fixes
[distro-setup] / i3-split-maybe
1 #!/bin/bash
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 switch
7 # its license to GPL.
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 set -e; . /usr/local/lib/bash-bear; set +e
25
26 # We use this along with
27 # /a/opt/i3-alternating-layout/alternating_layouts.py to anticipate when
28 # we want to split/tab windows. There are 2 options of when to do it:
29 # just after a window is created, or just before a window is
30 # created.
31 #
32 # *Doing it after a window is created allows you to move a window into
33 # the split that only has 1 window, whereas the other way doesn't. For
34 # my use cases, I think I don't really want to move it into the split if
35 # it is a tabbed split.
36 #
37 # *Doing it just before a windows is created, you need to
38 # call this script, which means wrapping launch of a program, which I
39 # have no way to do for all cases, I just do it for the common programs
40 # I have bound to keys in i3.
41 #
42 # * Doing it after a window is created also leaves that split behind if
43 # * the window is closed. I partially deal with that below.
44 #
45 # I have a keybind which disables both, it runs /b/ds/i3-auto-layout-toggle
46
47 if [[ -e /tmp/iank-i3-no-auto ]]; then
48 exit 0
49 fi
50
51
52 tmp=$(mktemp)
53
54 i3-msg -t get_workspaces | jq ".[]| select(.focused==true) | .rect | .width, .height" >$tmp
55
56 { read -r screen_width; read -r screen_height; } <$tmp
57
58 i3-msg -t get_tree | jq -r ".. | select(.focused? == true).rect | .width, .height" >$tmp
59
60 half_w=$(( screen_width / 2 + 100 ))
61 half_h=$(( screen_height / 2 + 100 ))
62
63
64 { read -r w; read -r h; } <$tmp
65
66
67 if (( screen_width < 1920 )); then
68 # haven't considered this case yet
69 exit 0
70 fi
71
72 if (( w < half_w && h < half_h )); then
73 i3-msg "split vertical, layout tabbed"
74 elif (( w == screen_width )); then
75 :
76 # if we had 2 windows on screen, made them vertical splits, then
77 # closed one, it stays vertical split, but we want it horizontal at
78 # that point. So, make it horizontal here.
79 i3-msg "split horizontal"
80 fi
81
82 rm -f $tmp