awesome/lib/awful/rules.lua.in

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---------------------------------------------------------------------------
-- @author Julien Danjou <julien@danjou.info>
-- @copyright 2009 Julien Danjou
-- @release @AWESOME_VERSION@
---------------------------------------------------------------------------
-- Grab environment we need
local client = client
local table = table
local type = type
local ipairs = ipairs
local pairs = pairs
local aclient = require("awful.client")
local atag = require("awful.tag")
--- Apply rules to clients at startup.
module("awful.rules")
--- This is the global rules table.
-- <p>You should fill this table with your rule and properties to apply.
-- For example, if you want to set xterm maximized at startup, you can add:
-- <br/>
-- <code>
-- { rule = { class = "xterm" },
-- properties = { maximized_vertical = true, maximized_horizontal = true } }
-- </code>
-- </p>
-- <p>If you want to set mplayer floating at startup, you can add:
-- <br/>
-- <code>
-- { rule = { name = "MPlayer" },
-- properties = { floating = true } }
-- </code>
-- </p>
-- <p>If you want to put Firefox on a specific tag at startup, you
-- can add:
-- <br/>
-- <code>
-- { rule = { instance = "firefox" }
-- properties = { tag = mytagobject } }
-- </code>
-- </p>
-- <p>If you want to put Emacs on a specific tag at startup, and
-- immediately switch to that tag you can add:
-- <br/>
-- <code>
-- { rule = { class = "Emacs" }
-- properties = { tag = mytagobject, switchtotag = true } }
-- </code>
-- </p>
-- <p>If you want to apply a custom callback to execute when a rule matched, you
-- can add:
-- <br/>
-- <code>
-- { rule = { class = "dosbox" },
-- callback = awful.placement.centered }
-- </code>
-- </p>
-- <p>Note that all "rule" entries need to match. If any of the entry does not
-- match, the rule won't be applied.</p>
-- <p>If a client matches multiple rules, their applied in the order they are
-- put in this global rules table. If the value of a rule is a string, then the
-- match function is used to determine if the client matches the rule.</p>
--
-- @class table
-- @name rules
rules = {}
--- Check if a client match a rule.
-- @param c The client.
-- @param rule The rule to check.
-- @return True if it matches, false otherwise.
function match(c, rule)
for field, value in pairs(rule) do
if c[field] then
if type(c[field]) == "string" then
if not c[field]:match(value) and c[field] ~= value then
return false
end
elseif c[field] ~= value then
return false
end
else
return false
end
end
return true
end
--- Apply rules to a client.
-- @param c The client.
function apply(c)
local props = {}
local callbacks = {}
for _, entry in ipairs(rules) do
if match(c, entry.rule) then
if entry.properties then
for property, value in pairs(entry.properties) do
props[property] = value
end
end
if entry.callback then
table.insert(callbacks, entry.callback)
end
end
end
for property, value in pairs(props) do
if property == "floating" then
aclient.floating.set(c, value)
elseif property == "tag" then
aclient.movetotag(value, c)
elseif property == "switchtotag" and value and props.tag then
atag.viewonly(props.tag)
elseif property == "height" or property == "width" or
property == "x" or property == "y" then
local geo = c:geometry();
geo[property] = value
c:geometry(geo);
elseif type(c[property]) == "function" then
c[property](c, value)
else
c[property] = value
end
end
-- Apply all callbacks from matched rules.
for i, callback in pairs(callbacks) do
callback(c)
end
-- Do this at last so we do not erase things done by the focus
-- signal.
if props.focus then
client.focus = c
end
end
client.add_signal("manage", apply)
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