awesome/lib/awful/widget/layoutbox.lua

124 lines
3.6 KiB
Lua

---------------------------------------------------------------------------
--- Display the current client layout (`awful.layout`) icon or name.
--
-- @DOC_awful_widget_layoutbox_default_EXAMPLE@
--
-- @author Julien Danjou <julien@danjou.info>
-- @copyright 2009 Julien Danjou
-- @widgetmod awful.widget.layoutbox
-- @supermodule wibox.layout.fixed
---------------------------------------------------------------------------
local setmetatable = setmetatable
local capi = { screen = screen, tag = tag }
local layout = require("awful.layout")
local tooltip = require("awful.tooltip")
local beautiful = require("beautiful")
local wibox = require("wibox")
local gdebug = require("gears.debug")
local gtable = require("gears.table")
local function get_screen(s)
return s and capi.screen[s]
end
local layoutbox = { mt = {} }
local boxes = nil
local function update(w, screen)
screen = get_screen(screen)
local name = layout.getname(layout.get(screen))
w._layoutbox_tooltip:set_text(name or "[no name]")
local image_name = "layout_" .. name
local theme_image = beautiful[image_name]
local success = false
if theme_image ~= nil then
success = w.imagebox:set_image(beautiful[image_name])
end
w.textbox.text = success and "" or name
end
local function update_from_tag(t)
local screen = get_screen(t.screen)
local w = boxes[screen]
if w then
update(w, screen)
end
end
--- Create a layoutbox widget. It draws a picture with the current layout
-- symbol of the current tag.
-- @constructorfct awful.widget.layoutbox
-- @tparam table args The arguments.
-- @tparam screen args.screen The screen number that the layout will be represented for.
-- @tparam table args.buttons The `awful.button`s for this layoutbox.
-- @return The layoutbox.
function layoutbox.new(args)
args = args or {}
local screen = args.screen
if type(args) == "number" or type(args) == "screen" or args.fake_remove then
screen, args = args, {}
gdebug.deprecate(
"Use awful.widget.layoutbox{screen=s} instead of awful.widget.layoutbox(screen)",
{deprecated_in=5}
)
end
assert(type(args) == "table")
screen = get_screen(screen or 1)
-- Do we already have the update callbacks registered?
if boxes == nil then
boxes = setmetatable({}, { __mode = "kv" })
capi.tag.connect_signal("property::selected", update_from_tag)
capi.tag.connect_signal("property::layout", update_from_tag)
capi.tag.connect_signal("property::screen", function()
for s, w in pairs(boxes) do
if s.valid then
update(w, s)
end
end
end)
layoutbox.boxes = boxes
end
-- Do we already have a layoutbox for this screen?
local w = boxes[screen]
if not w then
w = wibox.widget {
{
id = "imagebox",
widget = wibox.widget.imagebox
},
{
id = "textbox",
widget = wibox.widget.textbox
},
layout = wibox.layout.fixed.horizontal
}
w._layoutbox_tooltip = tooltip {objects = {w}, delay_show = 1}
-- Apply the buttons, visible, forced_width and so on
gtable.crush(w, args)
update(w, screen)
boxes[screen] = w
end
return w
end
function layoutbox.mt:__call(...)
return layoutbox.new(...)
end
return setmetatable(layoutbox, layoutbox.mt)
-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80