357 lines
9 KiB
Bash
Executable file
357 lines
9 KiB
Bash
Executable file
#!/usr/bin/env bash
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# _ _ _ _ _ _
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# __| |_ __ ___ ___ _ __ _ _ | |__ | |_ _ ___| |_ ___ ___ | |_ | |__
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# / _` | '_ ` _ \ / _ \ '_ \| | | |_____| '_ \| | | | |/ _ \ __/ _ \ / _ \| __|| '_ \
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# | (_| | | | | | | __/ | | | |_| |_____| |_) | | |_| | __/ || (_) | (_) | |_ | | | |
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# \__,_|_| |_| |_|\___|_| |_|\__,_| |_.__/|_|\__,_|\___|\__\___/ \___/ \__||_| |_|
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#
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# Author: Nick Clyde (clydedroid)
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# dmenu support by: Layerex
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#
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# A script that generates a dmenu menu that uses bluetoothctl to
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# connect to bluetooth devices and display status info.
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#
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# Inspired by networkmanager-dmenu (https://github.com/firecat53/networkmanager-dmenu)
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# Thanks to x70b1 (https://github.com/polybar/polybar-scripts/tree/master/polybar-scripts/system-bluetooth-bluetoothctl)
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#
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# Depends on:
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# Arch repositories: dmenu, bluez-utils (contains bluetoothctl)
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# Constants
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divider="---------"
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goback="Back"
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connected_icon=""
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# Checks if bluetooth controller is powered on
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power_on() {
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if bluetoothctl show | grep -F -q "Powered: yes"; then
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return 0
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else
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return 1
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fi
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}
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# Toggles power state
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toggle_power() {
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if power_on; then
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bluetoothctl power off
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show_menu
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else
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if rfkill list bluetooth | grep -F -q 'blocked: yes'; then
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rfkill unblock bluetooth && sleep 3
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fi
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bluetoothctl power on
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show_menu
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fi
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}
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# Checks if controller is scanning for new devices
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scan_on() {
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if bluetoothctl show | grep -F -q "Discovering: yes"; then
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echo "Scan: on"
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return 0
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else
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echo "Scan: off"
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return 1
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fi
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}
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# Toggles scanning state
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toggle_scan() {
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if scan_on; then
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kill $(pgrep -f "bluetoothctl scan on")
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bluetoothctl scan off
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show_menu
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else
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bluetoothctl scan on &
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echo "Scanning..."
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sleep 5
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show_menu
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fi
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}
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# Checks if controller is able to pair to devices
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pairable_on() {
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if bluetoothctl show | grep -F -q "Pairable: yes"; then
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echo "Pairable: on"
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return 0
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else
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echo "Pairable: off"
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return 1
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fi
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}
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# Toggles pairable state
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toggle_pairable() {
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if pairable_on; then
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bluetoothctl pairable off
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show_menu
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else
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bluetoothctl pairable on
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show_menu
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fi
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}
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# Checks if controller is discoverable by other devices
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discoverable_on() {
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if bluetoothctl show | grep -F -q "Discoverable: yes"; then
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echo "Discoverable: on"
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return 0
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else
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echo "Discoverable: off"
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return 1
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fi
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}
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# Toggles discoverable state
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toggle_discoverable() {
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if discoverable_on; then
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bluetoothctl discoverable off
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show_menu
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else
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bluetoothctl discoverable on
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show_menu
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fi
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}
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# Checks if a device is connected
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device_connected() {
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device_info=$(bluetoothctl info "$1")
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if echo "$device_info" | grep -F -q "Connected: yes"; then
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return 0
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else
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return 1
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fi
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}
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# Toggles device connection
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toggle_connection() {
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if device_connected "$1"; then
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bluetoothctl disconnect "$1"
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# device_menu "$device"
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else
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bluetoothctl connect "$1"
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# device_menu "$device"
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fi
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}
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# Checks if a device is paired
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device_paired() {
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device_info=$(bluetoothctl info "$1")
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if echo "$device_info" | grep -F -q "Paired: yes"; then
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echo "Paired: yes"
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return 0
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else
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echo "Paired: no"
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return 1
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fi
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}
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# Toggles device paired state
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toggle_paired() {
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if device_paired "$1"; then
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bluetoothctl remove "$1"
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device_menu "$device"
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else
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bluetoothctl pair "$1"
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device_menu "$device"
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fi
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}
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# Checks if a device is trusted
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device_trusted() {
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device_info=$(bluetoothctl info "$1")
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if echo "$device_info" | grep -F -q "Trusted: yes"; then
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echo "Trusted: yes"
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return 0
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else
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echo "Trusted: no"
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return 1
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fi
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}
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# Toggles device connection
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toggle_trust() {
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if device_trusted "$1"; then
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bluetoothctl untrust "$1"
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device_menu "$device"
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else
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bluetoothctl trust "$1"
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device_menu "$device"
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fi
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}
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# Prints a short string with the current bluetooth status
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# Useful for status bars like polybar, etc.
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print_status() {
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if power_on; then
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printf ''
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mapfile -t paired_devices < <(bluetoothctl paired-devices | grep -F Device | cut -d ' ' -f 2)
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counter=0
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for device in "${paired_devices[@]}"; do
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if device_connected "$device"; then
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device_alias="$(bluetoothctl info "$device" | grep -F "Alias" | cut -d ' ' -f 2-)"
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if [ $counter -gt 0 ]; then
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printf ", %s" "$device_alias"
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else
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printf " %s" "$device_alias"
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fi
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((counter++))
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fi
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done
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printf "\n"
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else
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echo ""
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fi
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}
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# A submenu for a specific device that allows connecting, pairing, and trusting
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device_menu() {
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device=$1
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# Get device name and mac address
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device_name="$(echo "$device" | cut -d ' ' -f 3-)"
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mac="$(echo "$device" | cut -d ' ' -f 2)"
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# Build options
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if device_connected "$mac"; then
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connected="Connected: yes"
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else
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connected="Connected: no"
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fi
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paired=$(device_paired "$mac")
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trusted=$(device_trusted "$mac")
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options="$connected\n$paired\n$trusted\n$divider\n$goback\nExit"
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# Open dmenu menu, read chosen option
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chosen="$(echo -e "$options" | run_dmenu "$device_name")"
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# Match chosen option to command
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case $chosen in
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"" | "$divider")
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echo "No option chosen."
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;;
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"$connected")
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toggle_connection "$mac"
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;;
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"$paired")
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toggle_paired "$mac"
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;;
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"$trusted")
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toggle_trust "$mac"
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;;
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"$goback")
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show_menu
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;;
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esac
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}
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# Opens a dmenu menu with current bluetooth status and options to connect
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show_menu() {
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# Get menu options
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if power_on; then
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power="Power: on"
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# Human-readable names of devices, one per line
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# If scan is off, will only list paired devices
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if [[ -n $connected_icon ]]; then
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devices=$(bluetoothctl devices | grep -F Device | while read -r device; do
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device_name="$(echo "$device" | cut -d ' ' -f 3-)"
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mac="$(echo "$device" | cut -d ' ' -f 2)"
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icon=""
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if device_connected "$mac" && [[ -n $connected_icon ]]; then
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icon=" $connected_icon"
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fi
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echo "$device_name${icon}"
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done)
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else
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devices=$(bluetoothctl devices | grep -F Device | cut -d ' ' -f 3-)
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fi
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# Get controller flags
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scan=$(scan_on)
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pairable=$(pairable_on)
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discoverable=$(discoverable_on)
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# Options passed to dmenu
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options="$devices\n$divider\n$power\n$scan\n$pairable\n$discoverable\nExit"
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else
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power="Power: off"
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options="$power\nExit"
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fi
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# Open dmenu menu, read chosen option
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chosen="$(echo -e "$options" | run_dmenu "Bluetooth")"
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# Match chosen option to command
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case $chosen in
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"" | "$divider")
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echo "No option chosen."
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;;
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"$power")
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toggle_power
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;;
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"$scan")
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toggle_scan
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;;
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"$discoverable")
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toggle_discoverable
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;;
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"$pairable")
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toggle_pairable
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;;
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*)
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if [[ -n $connected_icon ]]; then
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chosen="${chosen%% ${connected_icon}}"
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fi
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device=$(bluetoothctl devices | grep -F "$chosen")
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# Open a submenu if a device is selected
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if [[ $device ]]; then device_menu "$device"; fi
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;;
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esac
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}
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original_args=("$@")
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# dmenu command to pipe into. Extra arguments to dmenu-bluetooth are passed through to dmenu. This
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# allows the user to set fonts, sizes, colours, etc.
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run_dmenu() {
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rofi -dmenu "${original_args[@]}" -i -p "$1"
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}
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print_help() {
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echo "usage: $0 [--help] [--status] [--connected-icon [ICON]]"
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echo ""
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echo "A script that generates a dmenu menu that uses bluetoothctl to connect to bluetooth devices and display status info."
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echo ""
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echo "options:"
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echo "--help show this help message and exit"
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echo "--connected-icon [ICON] add icon on device list next to connected devices"
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echo "--status print a short string about current bluetooth status and exit"
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}
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case "$1" in
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--help)
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print_help
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;;
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--connected-icon)
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if [[ -z $2 ]]; then
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connected_icon=""
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else
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connected_icon="$2"
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fi
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show_menu
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;;
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--status)
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print_status
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;;
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*)
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show_menu
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;;
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esac
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