---------------------------------------------------------------------------
-- @author Julien Danjou <julien@danjou.info>
-- @copyright 2008 Julien Danjou
-- @release @AWESOME_VERSION@
---------------------------------------------------------------------------

-- Grab environment we need
local capi =
{
    mouse = mouse,
    screen = screen,
    client = client
}
local util = require("awful.util")
local client = require("awful.client")
local hooks = require("awful.hooks")

--- Screen module for awful
module("awful.screen")

local data = {}
data.padding = {}

-- Create a hook for padding event
hooks.user.create("padding")

--- Give the focus to a screen, and move pointer.
-- @param i Relative screen number.
function focus(i)
    local s = util.cycle(capi.screen.count(), capi.mouse.screen + i)
    local c = client.focus.history.get(s, 0)
    if c then capi.client.focus = c end
    -- Move the mouse on the screen
    capi.mouse.screen = s
end

--- Get or set the screen padding.
-- @param i The screen number.
-- @param padding The padding, an table with 'top', 'left', 'right' and/or
-- 'bottom'. Can be nil if you only want to retrieve padding
function padding(i, padding)
    if padding then
        data.padding[i] = padding
        hooks.user.call("padding", i)
    end
    return data.padding[i]
end

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