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| -rwxr-xr-x | Scripts/volume-change.py | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/Scripts/volume-change.py b/Scripts/volume-change.py new file mode 100755 index 0000000..64d578a --- /dev/null +++ b/Scripts/volume-change.py @@ -0,0 +1,54 @@ +#!/usr/bin/python3 +# By: Garrett Holbrook +# Date: August 27th, 2015 +# +# Usage: Changes the system volume through amixer and then +# makes a dbus method call to the gnome shell to get the +# gnome volume OSD (On Screen Display) +# +# Requires: python3 and python-dbus (on Arch) or python3-dbus +# (on Debian) or equivalent +import dbus +import sys +from subprocess import getoutput + +# Getting the dbus interface to communicate with gnome's OSD +session_bus = dbus.SessionBus() +proxy = session_bus.get_object('org.gnome.Shell', '/org/gnome/Shell') +interface = dbus.Interface(proxy, 'org.gnome.Shell') + +# Interpreting how to affect the volume and by what percentage and +# then creating a bash command that will reduce the stdout to the +# new percentage volume. Vol = volume +vol_action = sys.argv[1] +vol_percent_change = sys.argv[2] + +command = 'amixer -D pulse sset Master ' + vol_percent_change + '%' + +if vol_action == 'increase': + command += '+ > /dev/null && amixer -D pulse set Master unmute' +else: + command += '-' + +command += ' | grep -oP "\[\d*%\]" | head -n 1 | sed s:[][%]::g' + +current_vol_percentage = int(getoutput(command)) +# If it's 0 then add mute flag (tigger sub-action, keyboard ligth for example) +if current_vol_percentage == 0: + getoutput('amixer -D pulse set Master mute'); + +# Determining which logo to use based off of the percentage +logo = 'audio-volume-' +if current_vol_percentage == 0: + logo += 'muted' +elif current_vol_percentage < 30: + logo += 'low' +elif current_vol_percentage < 70: + logo += 'medium' +else: + logo += 'high' +logo += '-symbolic' + +# Make the dbus method call +interface.ShowOSD({"icon":logo, "level":current_vol_percentage}) + |