feat: Added Battery Widget (#59)

Co-authored-by: holesachin <holesachin07@gmail.com>
Co-authored-by: Daniel Porter <dpreid@gmail.com>

README.md

@@ -33,7 +33,7 @@ see documentation for installing [`GNU bc`](https://www.gnu.org/software/bc/) in
 ## Installation using TPM
 
 In your `tmux.conf`:
-```
+```bash
 set -g @plugin "janoamaral/tokyo-night-tmux"
 ```
 
@@ -43,15 +43,15 @@ set -g @plugin "janoamaral/tokyo-night-tmux"
 
 Run this
 
-```
+```bash
 tmux set @tokyo-night-tmux_window_id_style digital
 tmux set @tokyo-night-tmux_pane_id_style hsquare
 tmux set @tokyo-night-tmux_zoom_id_style dsquare
 ```
 
 or add this lines to your  `.tmux.conf`
 
-```
+```bash
 set -g @tokyo-night-tmux_window_id_style digital
 set -g @tokyo-night-tmux_pane_id_style hsquare
 set -g @tokyo-night-tmux_zoom_id_style dsquare
@@ -70,9 +70,7 @@ For widgets add following lines in you `.tmux.conf`
 set value 0 to disable
 ```bash
 set -g @tokyo-night-tmux_show_datetime 0
-
 set -g @tokyo-night-tmux_date_format MYD
-
 set -g @tokyo-night-tmux_time_format 12H
 ```
 
@@ -105,6 +103,14 @@ set -g @tokyo-night-tmux_show_path 1
 set -g @tokyo-night-tmux_path_format relative # 'relative' or 'full'
 ```
 
+#### Battery Widget
+
+```bash
+set -g @tokyo-night-tmux_show_battery_widget 1
+set -g @tokyo-night-tmux_battery_name "BAT1"  # some linux distro have 'BAT0'
+set -g @tokyo-night-tmux_battery_low_threshold 21 # default
+```
+
 set variables value `0` to disable the widget, Remember to restart the `tmux` after changing values.
 
 ## The styles:

src/battery-widget.sh

@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+
+# check if not enabled
+SHOW_BATTERY_WIDGET=$(tmux show-option -gv @tokyo-night-tmux_show_battery_widget 2>/dev/null)
+if [ "${SHOW_BATTERY_WIDGET}" != "1" ]; then
+    exit 0
+fi
+
+# get value from tmux config
+BATTERY_NAME=$(tmux show-option -gv @tokyo-night-tmux_battery_name 2>/dev/null) # default 'BAT1'
+BATTERY_LOW=$(tmux show-option -gv @tokyo-night-tmux_battery_low_threshold 2>/dev/null) # default 21
+RESET="#[fg=brightwhite,bg=#15161e,nobold,noitalics,nounderscore,nodim]"
+
+DISCHARGING_ICONS=("󰁺" "󰁻" "󰁼" "󰁽" "󰁾" "󰁿" "󰂀" "󰂁" "󰂂" "󰁹")
+CHARGING_ICONS=("󰢜" "󰂆" "󰂇" "󰂈" "󰢝" "󰂉" "󰢞" "󰂊" "󰂋" "󰂅")
+NOT_CHARGING_ICON="󰚥"
+NO_BATTERY_ICON="󱉝"
+
+default_show_battery_percentage=1
+default_battery_low="21"
+if [[ "$(uname)" == "Darwin" ]]; then
+  default_battery_name="InternalBattery-0"
+else
+  default_battery_name="BAT1"
+fi
+
+BATTERY_NAME="${BATTERY_NAME:-$default_battery_name}"
+BATTERY_LOW="${BATTERY_LOW:-$default_battery_low}"
+
+# get battery stats
+if [[ "$(uname)" == "Darwin" ]]; then
+  pmstat=$(pmset -g batt | grep $BATTERY_NAME)
+  BATTERY_STATUS=$(echo $pmstat | awk '{print $4}' | sed 's/[^a-z]*//g')
+  BATTERY_PERCENTAGE=$(echo $pmstat | awk '{print $3}' | sed 's/[^0-9]*//g')
+else
+  BATTERY_STATUS=$(</sys/class/power_supply/${BATTERY_NAME}/status)
+  BATTERY_PERCENTAGE=$(</sys/class/power_supply/${BATTERY_NAME}/capacity)
+fi
+
+# set color and icon based on battery status
+case "${BATTERY_STATUS}" in
+"Charging" | "charging")
+  ICONS="${CHARGING_ICONS[$((BATTERY_PERCENTAGE / 10 - 1))]}"
+  ;;
+"Discharging" | "discharging")
+  ICONS="${DISCHARGING_ICONS[$((BATTERY_PERCENTAGE / 10 - 1))]}"
+  ;;
+"Not charging" | "AC")
+  ICONS="${NOT_CHARGING_ICON}"
+  ;;
+"Full" | "charged")
+   ICONS="${NOT_CHARGING_ICON}"
+  ;;
+*) ICONS="${NO_BATTERY_ICON}"
+   BATTERY_PERCENTAGE="0"
+  ;;
+esac
+
+# set color on battery capacity
+if [[ ${BATTERY_PERCENTAGE} -lt ${BATTERY_LOW} ]]; then
+  _color="#[fg=red,bg=default,bold]"
+elif [[ ${BATTERY_PERCENTAGE} -ge 100 ]]; then
+  _color="#[fg=green,bg=default]"
+else
+  _color="#[fg=yellow,bg=default]"
+fi
+
+echo "${_color}░ ${ICONS}${RESET}#[bg=default] ${BATTERY_PERCENTAGE}% "

tokyo-night.tmux

@@ -48,6 +48,7 @@ custom_pane="#($SCRIPTS_PATH/custom-number.sh #P $pane_id_style)"
 zoom_number="#($SCRIPTS_PATH/custom-number.sh #P $zoom_id_style)"
 date_and_time="$($SCRIPTS_PATH/datetime-widget.sh)"
 current_path="#($SCRIPTS_PATH/path-widget.sh #{pane_current_path})"
+battery_status="#($SCRIPTS_PATH/battery-widget.sh)"
 
 #+--- Bars LEFT ---+
 # Session name
@@ -63,5 +64,5 @@ tmux set -g window-status-current-format "$RESET#[fg=#44dfaf,bg=#1F2335]  $wi
 tmux set -g window-status-format "$RESET#[fg=#c0caf5,bg=default,none,dim]  $window_number #W#[nobold,dim]#{?window_zoomed_flag, $zoom_number, $custom_pane} #[fg=yellow]#{?window_last_flag,󰁯 , } "
 
 #+--- Bars RIGHT ---+
-tmux set -g status-right "$current_path$cmus_status#[fg=#a9b1d6,bg=#24283B]$netspeed$git_status$wb_git_status$date_and_time"
+tmux set -g status-right "$battery_status$current_path$cmus_status#[fg=#a9b1d6,bg=#24283B]$netspeed$git_status$wb_git_status$date_and_time"
 tmux set -g window-status-separator ""