;;; battery.el --- display battery status information -*- coding: utf-8 -*-
-;; Copyright (C) 1997-1998, 2000-2013 Free Software Foundation, Inc.
+;; Copyright (C) 1997-1998, 2000-2014 Free Software Foundation, Inc.
;; Author: Ralph Schleicher <rs@nunatak.allgaeu.org>
;; Keywords: hardware
(defun battery-update ()
"Update battery status information in the mode line."
- (let ((data (and battery-status-function (funcall battery-status-function))))
+ (let* ((data (and battery-status-function (funcall battery-status-function)))
+ (percentage (car (read-from-string (cdr (assq ?p data))))))
(setq battery-mode-line-string
(propertize (if (and battery-mode-line-format
- (<= (car (read-from-string (cdr (assq ?p data))))
- battery-mode-line-limit))
- (battery-format
- battery-mode-line-format
- data)
+ (numberp percentage)
+ (<= percentage battery-mode-line-limit))
+ (battery-format battery-mode-line-format data)
"")
'face
- (and (<= (car (read-from-string (cdr (assq ?p data))))
- battery-load-critical)
- 'error)
+ (and (numberp percentage)
+ (<= percentage battery-load-critical)
+ 'error)
'help-echo "Battery status information")))
(force-mode-line-update))
\f
(and (re-search-forward "POWER_SUPPLY_STATUS=\\(.*\\)$" nil t)
(member charging-state '("Unknown" "Full" nil))
(setq charging-state (match-string 1)))
+ (goto-char (point-min))
(when (re-search-forward
"POWER_SUPPLY_\\(CURRENT\\|POWER\\)_NOW=\\([0-9]*\\)$"
nil t)
(setq rate (float (string-to-number (match-string 2)))))
+ (goto-char (point-min))
(when (re-search-forward "POWER_SUPPLY_TEMP=\\([0-9]*\\)$" nil t)
(setq temperature (match-string 1)))
+ (goto-char (point-min))
(let (full-string now-string)
;; Sysfs may list either charge (mAh) or energy (mWh).
;; Keep track of both, and choose which to report later.
(string-to-number full-string))
charge-now (+ charge-now
(string-to-number now-string))))
- ((and (re-search-forward
+ ((and (progn (goto-char (point-min)) t)
+ (re-search-forward
"POWER_SUPPLY_ENERGY_FULL=\\([0-9]*\\)$" nil t)
(setq full-string (match-string 1))
(re-search-forward
(with-temp-buffer
(ignore-errors (call-process "pmset" nil t nil "-g" "ps"))
(goto-char (point-min))
- (when (re-search-forward "Currentl?y drawing from '\\(AC\\|Battery\\) Power'" nil t)
+ (when (re-search-forward "\\(?:Currentl?y\\|Now\\) drawing from '\\(AC\\|Battery\\) Power'" nil t)
(setq power-source (match-string 1))
(when (re-search-forward "^ -InternalBattery-0[ \t]+" nil t)
(when (looking-at "\\([0-9]\\{1,3\\}\\)%")