Daniel Barlow
4c63c0338d
use highest common factor of requested intervals. this will still suck if we have e.g. intervals of 333 and 1000, we could probably refine it a bit. no interval over 3s cares about millisecond precision
53 lines
1.8 KiB
Markdown
53 lines
1.8 KiB
Markdown
# Blinkenlicht
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Yet another "bar" program for wlroots-basd Wayland compositors, but
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this one is written in [Fennel](https://fennel-lang.org/) and
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therefore better than all the others because it is more niche.
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More seriously: you might prefer this over another status bar program
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if you want fine-grained control over what is shown in your bar and
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you are happy to exert that control in a Lua-based Lisp language.
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## Current status and usage
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Not quite dogfood-ready yet, but fast approaching.
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* bl.fnl is an example, using licht.css for its styling
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* blinkenlicht.fnl is the module that parses `bar` and `indicator`
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forms and does all the UI
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* metric.fnl is a collection of functions that read metrics (load
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average, battery status etc) from the system, for indicators to
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display.
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Use the `default.nix` for guidance as to libraries and other setup
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required - or just use it, of course.
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nix-shell
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lua $fennel bl.fnl
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The funny symbols in bl.fnl are code points that exist only in the
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"Font Awesome" font, and render to handy icons like "battery, half
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empty". You need to install Font Awesome to see them; however due to
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the Gtk font fallback system - at least, that's what I think is doing
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it - you don't actually need to specify that font in your CSS because
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Gtk will find it anyway. Magic.
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## Plan
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* [X] use gtk-layer-shell to put it in a layer
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* [X] update only at relevant intervals
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* [X] cache icon pixbufs
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* [X] add some mechanism for indicators that wait for events instead of polling
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* [X] set indicator background colour (use css for this?)
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* [ ] update image/label widget instead of destroying
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* [ ] allow height customisation
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* [X] set poll interval based on indicators' requested intervals
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* [X] allow indicator to change styles based on status
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* [ ] add metrics for
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- wireless connected/strength
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- wwan connected/type (hspa, lte, etc)/signal
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- cpu %
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