awesome/lib/awful/layout/init.lua.in

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---------------------------------------------------------------------------
-- @author Julien Danjou <julien@danjou.info>
-- @copyright 2008 Julien Danjou
-- @release @AWESOME_VERSION@
---------------------------------------------------------------------------
-- Grab environment we need
local ipairs = ipairs
local type = type
local capi = { screen = screen, client = client }
local tag = require("awful.tag")
local util = require("awful.util")
local suit = require("awful.layout.suit")
local ascreen = require("awful.screen")
local capi = {
screen = screen,
awesome = awesome,
client = client
}
local client = require("awful.client")
--- Layout module for awful
module("awful.layout")
-- This is a special lock used by the arrange function.
-- This avoids recurring call by emitted signals.
local arrange_lock = false
--- Get the current layout.
-- @param screen The screen number.
-- @return The layout function.
function get(screen)
local t = tag.selected(screen)
return tag.getproperty(t, "layout") or suit.floating
end
--- Change the layout of the current tag.
-- @param layouts A table of layouts.
-- @param i Relative index.
function inc(layouts, i)
local t = tag.selected()
if t then
local curlayout = get()
local curindex
local rev_layouts = {}
for k, v in ipairs(layouts) do
if v == curlayout then
curindex = k
break
end
end
if curindex then
local newindex = util.cycle(#layouts, curindex + i)
set(layouts[newindex])
end
end
end
--- Set the layout function of the current tag.
-- @param layout Layout name.
function set(layout, t)
t = t or tag.selected()
tag.setproperty(t, "layout", layout)
end
--- Arrange a screen using its current layout.
-- @param screen The screen to arrange.
function arrange(screen)
if arrange_lock then return end
arrange_lock = true
local p = {}
p.workarea = capi.screen[screen].workarea
-- Handle padding
local padding = ascreen.padding(capi.screen[screen])
if padding then
p.workarea.x = p.workarea.x + (padding.left or 0)
p.workarea.y = p.workarea.y + (padding.top or 0)
p.workarea.width = p.workarea.width - ((padding.left or 0 ) + (padding.right or 0))
p.workarea.height = p.workarea.height - ((padding.top or 0) + (padding.bottom or 0))
end
p.geometry = capi.screen[screen].geometry
p.clients = client.tiled(screen)
p.screen = screen
get(screen).arrange(p)
capi.screen[screen]:emit_signal("arrange")
arrange_lock = false
end
--- Get the current layout name.
-- @param layout The layout.
-- @return The layout name.
function getname(layout)
local layout = layout or get()
return layout.name
end
local function arrange_prop(obj) arrange(obj.screen) end
capi.client.connect_signal("property::size_hints_honor", arrange_prop)
capi.client.connect_signal("property::struts", arrange_prop)
capi.client.connect_signal("property::minimized", arrange_prop)
capi.client.connect_signal("property::sticky", arrange_prop)
capi.client.connect_signal("property::fullscreen", arrange_prop)
capi.client.connect_signal("property::maximized_horizontal", arrange_prop)
capi.client.connect_signal("property::maximized_vertical", arrange_prop)
capi.client.connect_signal("property::border_width", arrange_prop)
capi.client.connect_signal("property::hidden", arrange_prop)
capi.client.connect_signal("property::floating", arrange_prop)
capi.client.connect_signal("property::geometry", arrange_prop)
-- If prop is screen, we do not know what was the previous screen, so
-- let's arrange all screens :-(
capi.client.connect_signal("property::screen", function(c)
for screen = 1, capi.screen.count() do arrange(screen) end end)
local function arrange_on_tagged(c, tag)
if not tag.screen then return end
arrange(tag.screen)
if not capi.client.focus or not capi.client.focus:isvisible() then
local c = client.focus.history.get(tag.screen, 0)
if c then capi.client.focus = c end
end
end
for s = 1, capi.screen.count() do
capi.screen[s]:add_signal("arrange")
tag.attached_connect_signal(s, "property::mwfact", arrange_prop)
tag.attached_connect_signal(s, "property::nmaster", arrange_prop)
tag.attached_connect_signal(s, "property::ncol", arrange_prop)
tag.attached_connect_signal(s, "property::layout", arrange_prop)
tag.attached_connect_signal(s, "property::windowfact", arrange_prop)
tag.attached_connect_signal(s, "property::selected", arrange_prop)
tag.attached_connect_signal(s, "tagged", arrange_prop)
capi.screen[s]:connect_signal("property::workarea", function(screen)
arrange(screen.index)
end)
capi.screen[s]:connect_signal("tag::attach", function (screen, tag)
arrange(screen.index)
end)
capi.screen[s]:connect_signal("tag::detach", function (screen, tag)
arrange(screen.index)
end)
capi.screen[s]:connect_signal("padding", function (screen)
arrange(screen.index)
end)
end
capi.client.connect_signal("focus", function(c) arrange(c.screen) end)
capi.client.connect_signal("list", function()
for screen = 1, capi.screen.count() do
arrange(screen)
end
end)
-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80