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awful.screen.padding: Always return a valid table. 

This also fix a bug when the user edit the table. In that case,
the padding was (accidentally) changed without the correct
signals.
This commit is contained in:
Emmanuel Lepage Vallee 2016-03-26 03:05:45 -04:00
parent 242652be94
commit 9fd329c449
1 changed files with 10 additions and 1 deletions
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11
lib/awful/screen.lua
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@ -138,6 +138,7 @@ end
-- @param[opt=nil] padding The padding, a table with 'top', 'left', 'right' and/or -- @param[opt=nil] padding The padding, a table with 'top', 'left', 'right' and/or
-- 'bottom' or a number value to apply set the same padding on all sides. Can be -- 'bottom' or a number value to apply set the same padding on all sides. Can be
-- nil if you only want to retrieve padding -- nil if you only want to retrieve padding
-- @treturn table A table with left, right, top and bottom number values.
function screen.padding(_screen, padding) function screen.padding(_screen, padding)
if type(padding) == "number" then if type(padding) == "number" then
padding = { padding = {
@ -154,7 +155,15 @@ function screen.padding(_screen, padding)
_screen:emit_signal("padding") _screen:emit_signal("padding")
end end
return data.padding[_screen] local p = data.padding[_screen] or {}
-- Create a copy to avoid accidental mutation and nil values
return {
left = p.left or 0,
right = p.right or 0,
top = p.top or 0,
bottom = p.bottom or 0,
}
end end
--- Get the focused screen. --- Get the focused screen.