mirror of https://github.com/lcpz/lain.git
44 lines
1.2 KiB
Lua
44 lines
1.2 KiB
Lua
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--[[
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Licensed under GNU General Public License v2
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* (c) 2014, Luke Bonham
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--]]
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local helpers = require("lain.helpers")
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local textbox = require("wibox.widget.textbox")
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local setmetatable = setmetatable
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-- Template for asynchronous watcher widgets
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-- lain.widget.watch
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local function worker(args)
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local watch = {}
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local args = args or {}
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local timeout = args.timeout or 5
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local nostart = args.nostart or false
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local stoppable = args.stoppable or false
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local cmd = args.cmd
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local settings = args.settings or function() widget:set_text(output) end
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watch.widget = args.widget or textbox()
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function watch.update()
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helpers.async(cmd, function(f)
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output = f
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if output ~= watch.prev then
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widget = watch.widget
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settings()
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watch.prev = output
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end
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end)
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end
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watch.timer = helpers.newtimer(cmd, timeout, watch.update, nostart, stoppable)
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return watch
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end
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return setmetatable({}, { __call = function(_, ...) return worker(...) end })
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