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tasklist: call tasklist_update only once per main loop 

Currently `tasklist_update` gets triggered often, because it listens to
a lot of signals.
This patch makes it only call the last one through `timer.delayed_call`.
This commit is contained in:
Daniel Hahler 2015-07-07 18:07:59 +02:00
parent 49bf635017
commit 1924e044f7
1 changed files with 13 additions and 1 deletions
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14
lib/awful/widget/tasklist.lua
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@ -19,6 +19,7 @@ local client = require("awful.client")
local util = require("awful.util") local util = require("awful.util")
local tag = require("awful.tag") local tag = require("awful.tag")
local flex = require("wibox.layout.flex") local flex = require("wibox.layout.flex")
local timer = require("gears.timer")
local tasklist = { mt = {} } local tasklist = { mt = {} }
@ -146,7 +147,18 @@ function tasklist.new(screen, filter, buttons, style, update_function, base_widg
local w = base_widget or flex.horizontal() local w = base_widget or flex.horizontal()
local data = setmetatable({}, { __mode = 'k' }) local data = setmetatable({}, { __mode = 'k' })
local u = function () tasklist_update(screen, w, buttons, filter, data, style, uf) end
local queued_update = false
local u = function ()
-- Add a delayed callback for the first update.
if not queued_update then
timer.delayed_call(function()
tasklist_update(screen, w, buttons, filter, data, style, uf)
queued_update = nil
end)
queued_update = true
end
end
tag.attached_connect_signal(screen, "property::selected", u) tag.attached_connect_signal(screen, "property::selected", u)
tag.attached_connect_signal(screen, "property::activated", u) tag.attached_connect_signal(screen, "property::activated", u)
capi.client.connect_signal("property::urgent", u) capi.client.connect_signal("property::urgent", u)