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Luca CPZ edited this page Dec 3, 2020 · 81 revisions

Usage

Every lain widget is a table.

A lain widget is generated by a function.

The function signature, input and output arguments can be found in the related wiki entry.

Every lain widget contains a wibox.widget, which is updated by a timed function. To access the widget, use the field widget, to access the timed function, use the field update. Some lain widgets may also have an icon field, which is a wibox.widget.imagebox, and/or a timer field, which is the gears.timer on update.

Every function may take either a table or a list of variables as input.

If the input is a table, you must define a function variable called settings in it. There you will be able to define widget appearance.

For instance, if widget is a textbox, to markup it call widget:set_markup(...) within settings.

In the scope of settings you can use predefined arguments, which are specified in the wiki entries.

Example of a lain widget:

local cpu = lain.widget.cpu {
    settings = function()
        widget:set_markup("Cpu " .. cpu_now.usage)
    end
}
-- to access the widget: cpu.widget

Given the asynchronous nature of these widgets, be sure to use a defensive programming style when you write your configuration. You can find various examples of this in awesome-copycats.

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