318 lines
7.6 KiB
Bash
318 lines
7.6 KiB
Bash
#!/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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#
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# A script that generates a rofi 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: rofi, bluez-utils (contains bluetoothctl)
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# Constants
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divider="---------"
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goback="Back"
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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 -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 -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 -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 -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 -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 -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 -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 -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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paired_devices_cmd="devices Paired"
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# Check if an outdated version of bluetoothctl is used to preserve backwards compatibility
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if (( $(echo "$(bluetoothctl version | cut -d ' ' -f 2) < 5.65" | bc -l) )); then
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paired_devices_cmd="paired-devices"
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fi
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mapfile -t paired_devices < <(bluetoothctl $paired_devices_cmd | grep Device | cut -d ' ' -f 2)
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counter=0
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for device in "${paired_devices[@]}"; do
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if device_connected $device; then
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device_alias=$(bluetoothctl info $device | grep "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 rofi menu, read chosen option
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chosen="$(echo -e "$options" | $rofi_command "$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 rofi 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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devices=$(bluetoothctl devices | grep Device | cut -d ' ' -f 3-)
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# Get controller flags
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scan=$(scan_on)
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pairable=$(pairable_on)
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discoverable=$(discoverable_on)
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# Options passed to rofi
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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="$power\nExit"
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fi
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# Open rofi menu, read chosen option
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chosen="$(echo -e "$options" | $rofi_command "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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$pairable)
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toggle_pairable
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;;
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*)
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device=$(bluetoothctl devices | grep "$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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# Rofi command to pipe into, can add any options here
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rofi_command="rofi -theme theme/passmenu.rasi -dmenu -no-fixed-num-lines -yoffset -100 -i -p"
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case "$1" in
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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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