awesome/lib/wibox/init.lua

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---------------------------------------------------------------------------
-- @author Uli Schlachter
-- @copyright 2010 Uli Schlachter
-- @release @AWESOME_VERSION@
-- @classmod wibox
---------------------------------------------------------------------------
local capi = {
drawin = drawin,
root = root,
awesome = awesome,
screen = screen
}
local setmetatable = setmetatable
local pairs = pairs
local type = type
local object = require("gears.object")
local grect = require("gears.geometry").rectangle
local beautiful = require("beautiful")
local base = require("wibox.widget.base")
--- This provides widget box windows. Every wibox can also be used as if it were
-- a drawin. All drawin functions and properties are also available on wiboxes!
-- wibox
local wibox = { mt = {}, object = {} }
wibox.layout = require("wibox.layout")
wibox.container = require("wibox.container")
wibox.widget = require("wibox.widget")
wibox.drawable = require("wibox.drawable")
wibox.hierarchy = require("wibox.hierarchy")
local force_forward = {
shape_bounding = true,
shape_clip = true,
}
--@DOC_wibox_COMMON@
function wibox:set_widget(widget)
self._drawable:set_widget(widget)
end
function wibox:get_widget()
return self._drawable.widget
end
wibox.setup = base.widget.setup
function wibox:set_bg(c)
self._drawable:set_bg(c)
end
function wibox:set_bgimage(image, ...)
self._drawable:set_bgimage(image, ...)
end
function wibox:set_fg(c)
self._drawable:set_fg(c)
end
function wibox:find_widgets(x, y)
return self._drawable:find_widgets(x, y)
end
function wibox:get_screen()
if self.screen_assigned and self.screen_assigned.valid then
return self.screen_assigned
else
self.screen_assigned = nil
end
local sgeos = {}
for s in capi.screen do
sgeos[s] = s.geometry
end
return grect.get_closest_by_coord(sgeos, self.x, self.y)
end
function wibox:set_screen(s)
s = capi.screen[s or 1]
if s ~= self:get_screen() then
self.x = s.geometry.x
self.y = s.geometry.y
end
-- Remember this screen so things work correctly if screens overlap and
-- (x,y) is not enough to figure out the correct screen.
self.screen_assigned = s
end
for _, k in pairs{ "buttons", "struts", "geometry", "get_xproperty", "set_xproperty" } do
wibox[k] = function(self, ...)
return self.drawin[k](self.drawin, ...)
end
end
local function setup_signals(_wibox)
local obj
local function clone_signal(name)
-- When "name" is emitted on wibox.drawin, also emit it on wibox
obj:connect_signal(name, function(_, ...)
_wibox:emit_signal(name, ...)
end)
end
obj = _wibox.drawin
clone_signal("property::border_color")
clone_signal("property::border_width")
clone_signal("property::buttons")
clone_signal("property::cursor")
clone_signal("property::height")
clone_signal("property::ontop")
clone_signal("property::opacity")
clone_signal("property::struts")
clone_signal("property::visible")
clone_signal("property::width")
clone_signal("property::x")
clone_signal("property::y")
clone_signal("property::geometry")
clone_signal("property::shape_bounding")
clone_signal("property::shape_clip")
obj = _wibox._drawable
clone_signal("button::press")
clone_signal("button::release")
clone_signal("mouse::enter")
clone_signal("mouse::leave")
clone_signal("mouse::move")
clone_signal("property::surface")
end
--- Create a wibox.
-- @tparam[opt=nil] table args
-- @tparam integer args.border_width Border width.
-- @tparam string args.border_color Border color.
-- @tparam boolean args.ontop On top of other windows.
-- @tparam string args.cursor The mouse cursor.
-- @tparam boolean args.visible Visibility.
-- @tparam number args.opacity The opacity of the wibox, between 0 and 1.
-- @tparam string args.type The window type (desktop, normal, dock, …).
-- @tparam integer args.x The x coordinates.
-- @tparam integer args.y The y coordinates.
-- @tparam integer args.width The width of the wibox.
-- @tparam integer args.height The height of the wibox.
-- @tparam screen args.screen The wibox screen.
-- @tparam wibox.widget args.widget The widget that the wibox displays.
-- @param args.shape_bounding The wiboxs bounding shape as a (native) cairo surface.
-- @param args.shape_clip The wiboxs clip shape as a (native) cairo surface.
-- @tparam color args.bg The background of the wibox.
-- @tparam surface args.bgimage The background image of the drawable.
-- @tparam color args.fg The foreground (text) of the wibox.
-- @treturn wibox The new wibox
-- @function .wibox
local function new(args)
args = args or {}
local ret = object()
local w = capi.drawin(args)
-- lua 5.1 and luajit have issues with self referencing loops
local avoid_leak = setmetatable({ret},{__mode="v"})
function w.get_wibox()
return avoid_leak[1]
end
ret.drawin = w
ret._drawable = wibox.drawable(w.drawable, { wibox = ret },
"wibox drawable (" .. object.modulename(3) .. ")")
for k, v in pairs(wibox) do
if type(v) == "function" then
ret[k] = v
end
end
setup_signals(ret)
ret.draw = ret._drawable.draw
ret.widget_at = function(_, widget, x, y, width, height)
return ret._drawable:widget_at(widget, x, y, width, height)
end
-- Set the default background
ret:set_bg(args.bg or beautiful.bg_normal)
ret:set_fg(args.fg or beautiful.fg_normal)
-- Add __tostring method to metatable.
local mt = {}
local orig_string = tostring(ret)
mt.__tostring = function()
return string.format("wibox: %s (%s)",
tostring(ret._drawable), orig_string)
end
ret = setmetatable(ret, mt)
-- Make sure the wibox is drawn at least once
ret.draw()
-- If a value is not found, look in the drawin
setmetatable(ret, {
__index = function(self, k)
if rawget(self, "get_"..k) then
return self["get_"..k](self)
else
return w[k]
end
end,
__newindex = function(self, k,v)
if rawget(self, "set_"..k) then
self["set_"..k](self, v)
elseif w[k] ~= nil or force_forward[k] then
w[k] = v
else
rawset(self, k, v)
end
end
})
-- Set other wibox specific arguments
if args.bgimage then
ret:set_bgimage( args.bgimage )
end
if args.widget then
ret:set_widget ( args.widget )
end
if args.screen then
ret:set_screen ( args.screen )
end
return ret
end
--- Redraw a wibox. You should never have to call this explicitely because it is
-- automatically called when needed.
-- @param wibox
-- @function draw
function wibox.mt:__call(...)
return new(...)
end
-- Extend the luaobject
object.properties(capi.drawin, {
getter_class = wibox.object,
setter_class = wibox.object,
auto_emit = true,
})
return setmetatable(wibox, wibox.mt)
-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80