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local awful = require("awful")
local beautiful = require("beautiful")
local shape = require("gears.shape")
local wibox = require("wibox")
local utils = require("utils")
local M = {}
local function client_get_desk_idx(c)
if c.first_tag then
local desk_idx = utils.tag_desk_idx(c.first_tag)
if desk_idx ~= nil and desk_idx >= 0 then
return desk_idx
else
utils.warn('UrgentWgt', 'cannot get desk idx: ' .. c.first_tag.name)
end
end
return false
end
local function urgent_widget_create(name)
local textbox = wibox.widget.textbox(' ' .. name .. ' ')
local cont_bg = wibox.container.background(textbox)
cont_bg.bg = beautiful.bg_urgent
cont_bg.fg = beautiful.fg_urgent
cont_bg:set_shape(shape.rounded_rect, 5)
cont_bg.shape_border_width = 1
cont_bg.shape_border_color = beautiful.border_focus
return cont_bg
end
local UrgentWidget = {}
function UrgentWidget:_desk_client_add(desk_idx, c)
-- create the client list, if it does not exist already
if self._desktops[desk_idx] == nil then
self._desktops[desk_idx] = {}
end
self._desktops[desk_idx][c] = true
if self._desktop_widgets[desk_idx] == nil then
self._desktop_widgets[desk_idx] = urgent_widget_create(desk_idx)
end
for k, w in pairs(self._layout:get_children()) do
if w == self._desktop_widgets[desk_idx] then
return
end
end
self._layout:add(self._desktop_widgets[desk_idx])
end
function UrgentWidget:_desk_client_remove(desk_idx, c)
self._desktops[desk_idx][c] = nil
-- remove the widget if there are no clients left
local count = 0
for c, v in pairs(self._desktops[desk_idx]) do
if v then
count = count + 1
end
end
if count == 0 then
self._layout:remove_widgets(self._desktop_widgets[desk_idx])
end
end
function UrgentWidget:_client_add(c)
function handler_client_show(c)
if not c.urgent then
return
end
local desk_idx = client_get_desk_idx(c)
self._clients[c] = desk_idx
if desk_idx then
self:_desk_client_add(desk_idx, c)
end
end
function handler_client_hide(c)
if self._clients[c] then
self:_desk_client_remove(self._clients[c], c)
end
end
function handler_client_remove(c)
c:disconnect_signal('untagged', handler_client_hide)
c:disconnect_signal('tagged', handler_client_show)
c:disconnect_signal('unmanage', handler_client_remove)
c:disconnect_signal('property::urgent', handler_client_remove)
handler_client_hide(c)
self._clients[c] = nil
end
-- handle client state changes:
-- client moved: hide it on its previous desktop, show on the new one
c:connect_signal('untagged', handler_client_hide)
c:connect_signal('tagged', handler_client_show)
-- unurgent or destroyed: forget about client
c:connect_signal('property::urgent', handler_client_remove)
c:connect_signal('unmanage', handler_client_remove)
-- show the client on its desk right now
handler_client_show(c)
end
function UrgentWidget:new()
local ret = setmetatable({}, self)
self.__index = self
ret._layout = wibox.layout.fixed.horizontal()
ret.widget = awful.widget.only_on_screen(ret._layout, "primary")
-- maps from clients to their desk num (or false, when no desk num
-- can be determined)
ret._clients = {}
-- contains a table of urgent clients per each desktop number
ret._desktops = {}
ret._desktop_widgets = {}
-- signal handler for adding new clients
client.connect_signal('property::urgent',
function (c)
-- only do something when urgency flag is on
if c.urgent then
ret:_client_add(c)
end
end)
return ret
end
M.UrgentWidget = UrgentWidget
return M
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