161 lines
2.9 KiB
Bash
Executable File
161 lines
2.9 KiB
Bash
Executable File
#!/bin/bash
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#
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# compton-trans
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# transset in a bash script
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# Copyright (c) 2011-2012, Christopher Jeffrey
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#
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# Usage:
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# By window id
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# $ compton-trans -w "$WINDOWID" 75
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# By name
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# $ compton-trans -n "urxvt" 75
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# By current window
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# $ compton-trans -c 75
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# By selection
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# $ compton-trans 75
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# $ compton-trans -s 75
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# Increment current window 5%
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# $ compton-trans -c +5
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# Remove opacity property of current window
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# $ compton-trans -c none
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if test -z "$(which xprop)" -o -z "$(which xwininfo)"; then
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echo "Please install x11-utils/xorg-xprop/xorg-xwininfo." >& 2
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exit 1
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fi
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window=
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opacity=
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cur=
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root=
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parent=
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i=
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#
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# Options
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#
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arg=
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val=
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active=
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select=
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while test $# -gt 0; do
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arg="$1"
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shift
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case "$arg" in
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-s | -select | --select) ;;
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-c | -current | --current)
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active=$(xprop -root -notype "_NET_ACTIVE_WINDOW" \
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| sed 's/^.*\(0x\S*\).*$/\1/')
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window="-id $active"
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;;
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-n | -name | --name)
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val="$1"
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shift
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window="-name $val"
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;;
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-w | -window | --window)
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val="$1"
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shift
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window="-id $val"
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;;
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-o | -opacity | --opacity)
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val="$1"
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shift
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opacity="$val"
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;;
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*)
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opacity="$arg"
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;;
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esac
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done
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if test -z "$window"; then
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select=$(xwininfo | grep 'Window id:' | sed 's/^.*\(0x\S*\).*$/\1/')
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window="-id $select"
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fi
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#
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# Find Window
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#
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root=$(xwininfo -all -root \
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| grep "Root window id" \
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| sed 's/^.*\(0x\S*\).*$/\1/')
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parent=$window
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i=0
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while true; do
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parent=$(xwininfo -all $parent \
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| grep Parent \
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| sed 's/^.*\(0x\S*\).*$/\1/')
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if test -z "$parent"; then
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echo "Window not found." >& 2
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exit 1
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fi
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if test "$parent" = "$root"; then
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break
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fi
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parent="-id $parent"
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window=$parent
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i=$((i + 1))
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if test $i -ge 1000; then
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echo "An error occurred while traversing up the window tree." >& 2
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echo "Please report this to https://github.com/chjj/compton/issues." >& 2
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echo "Please mention your WM and versions of xwininfo/xprop." >& 2
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exit 1
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fi
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done
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if test -z "$window"; then
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echo "Window not found." >& 2
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exit 1
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fi
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#
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# Check (or Delete) Opacity
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#
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if test "$opacity" = "none"; then
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xprop $window -remove _NET_WM_WINDOW_OPACITY
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exit $?
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fi
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opacity=$(echo "$opacity" | sed 's/[^-+0-9]//g')
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if test -z "$opacity"; then
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echo "Bad opacity value." >& 2
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exit 1
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fi
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#
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# Determine Relative Opacity
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#
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if test -n "$(echo "$opacity" | sed 's/^\(+\|-\).*$\|^.*$/\1/')"; then
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cur=$(xprop $window -notype "_NET_WM_WINDOW_OPACITY" \
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| sed 's/^.*\b\([0-9]\+\).*$\|^.*$/\1/')
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test -z "$cur" && cur=$((0xffffffff))
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cur=$((cur * 100 / 0xffffffff))
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opacity=$((cur + opacity))
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fi
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#
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# Determine and Set Opacity
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#
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if test -n "$opacity" -a -n "$window"; then
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test $opacity -lt 0 && opacity=0
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test $opacity -gt 100 && opacity=100
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opacity=$((opacity * 0xffffffff / 100))
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xprop $window -f _NET_WM_WINDOW_OPACITY 32c \
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-set _NET_WM_WINDOW_OPACITY "$opacity"
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fi
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