bat: fixed "no such device" for current and power

1 files changed, 12 insertions, 9 deletions

diff --git a/widgets/bat.lua b/widgets/bat.lua
index 1641252..4d9b06c 100644
--- a/widgets/bat.lua
+++ b/widgets/bat.lua
@@ -64,16 +64,19 @@ local function worker(format, warg)
     end
 
     -- Calculate remaining (charging or discharging) time
-    if state == "+" then
-        timeleft = (tonumber(capacity) - tonumber(remaining)) / tonumber(rate)
-    elseif state == "-" then
-        timeleft = tonumber(remaining) / tonumber(rate)
-    else
-        return {state, percent, "N/A"}
+    local time = "N/A"
+    if rate ~= nil then
+        if state == "+" then
+            timeleft = (tonumber(capacity) - tonumber(remaining)) / tonumber(rate)
+        elseif state == "-" then
+            timeleft = tonumber(remaining) / tonumber(rate)
+        else
+            return {state, percent, time}
+        end
+        local hoursleft = math.floor(timeleft)
+        local minutesleft = math.floor((timeleft - hoursleft) * 60 )
+        time = string.format("%02d:%02d", hoursleft, minutesleft)
     end
-    local hoursleft = math.floor(timeleft)
-    local minutesleft = math.floor((timeleft - hoursleft) * 60 )
-    local time = string.format("%02d:%02d", hoursleft, minutesleft)
 
     return {state, percent, time}
 end