widget.fs: assure that each processed partition has non nil infos; awesome-copycats...

[etc/awesome.git] / widget / alsabar.lua

diff --git a/widget/alsabar.lua b/widget/alsabar.lua
index 125b992055a1ce6fe2cdd91f7d48514630da652d..557e97b8d31486116723c0ba39866adfb2d7a10d 100644 (file)
--- a/widget/alsabar.lua
+++ b/widget/alsabar.lua
@@ -113,9 +113,23 @@ local function factory(args)
                 preset.title = preset.title .. " Muted"
             end
 
-            int = math.modf((alsabar._current_level / 100) * awful.screen.focused().mywibox.height)
+            -- tot is the maximum number of ticks to display in the notification
+            -- fallback: default horizontal wibox height
+            local wib, tot = awful.screen.focused().mywibox, 20
+
+            -- if we can grab mywibox, tot is defined as its height if
+            -- horizontal, or width otherwise
+            if wib then
+                if wib.position == "left" or wib.position == "right" then
+                    tot = wib.width
+                else
+                    tot = wib.height
+                end
+            end
+
+            int = math.modf((alsabar._current_level / 100) * tot)
             preset.text = string.format("[%s%s]", string.rep("|", int),
-                          string.rep(" ", awful.screen.focused().mywibox.height - int))
+                          string.rep(" ", tot - int))
 
             if alsabar.followtag then preset.screen = awful.screen.focused() end