mirror of https://github.com/lcpz/lain.git
80 lines
2.2 KiB
Lua
80 lines
2.2 KiB
Lua
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--[[
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Licensed under GNU General Public License v2
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* (c) 2014, blueluke <http://github.com/blueluke>
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--]]
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local os = os
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local awful = require("awful")
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local spawn = awful.util.spawn_with_shell
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local setmetatable = setmetatable
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-- redshift
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-- lain.widgets.contrib.redshift
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local redshift = {}
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local attached = false -- true if attached to a widget
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local active = false -- true if redshift is active
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local running = false -- true if redshift was initialized
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local update_fnct = function() end -- function that is run each time redshift is toggled. See redshift:attach().
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local function init()
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-- As there is no way to determine if redshift was previously
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-- toggled off (i.e Awesome on-the-fly restart), kill redshift to make sure
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os.execute("pkill redshift")
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-- Remove existing color adjustment
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spawn("redshift -x")
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-- (Re)start redshift
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spawn("redshift")
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running = true
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active = true
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end
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function redshift:toggle()
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if running then
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-- Sending -USR1 toggles redshift (See project website)
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os.execute("pkill -USR1 redshift")
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active = not active
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else
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init()
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end
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update_fnct()
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end
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function redshift:off()
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if running and active then
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redshift:toggle()
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end
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end
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function redshift:on()
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if not active then
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redshift:toggle()
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end
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end
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function redshift:is_active()
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return active
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end
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-- Attach to a widget
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-- Provides a button which toggles redshift on/off on click
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-- @ param widget: widget to attach to
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-- @ param fnct: function to be run each time redshift is toggled (optional).
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-- Use it to update widget text or icons on status change.
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function redshift:attach(widget, fnct)
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update_fnct = fnct or function() end
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if not attached then
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init()
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attached = true
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update_fnct()
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end
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widget:buttons(awful.util.table.join( awful.button({}, 1, function () redshift:toggle() end) ))
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end
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return setmetatable(redshift, { _call = function(_, ...) return create(...) end })
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