95 lines
2.8 KiB
Fennel
95 lines
2.8 KiB
Fennel
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(local lfs (require :lfs))
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(local inifile (require :inifile))
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(local inspect (require :inspect))
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(local posix (require :posix))
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(local lgi (require :lgi))
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(local Gtk lgi.Gtk)
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(local Pango lgi.Pango)
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(local icon-theme (Gtk.IconTheme.get_default))
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(fn find-icon [name]
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(var found false)
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(if (= (name.sub 1 1) "/")
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(Gtk.Image.new_from_file name)
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(let [sizes (icon-theme:get_icon_sizes name)]
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(each [_ res (pairs [64 48]) :until found]
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(set found (icon-theme:load_icon
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name res
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(+ Gtk.IconLookupFlags.FORCE_SVG Gtk.IconLookupFlags.USE_BUILTIN))))
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(Gtk.Image.new_from_pixbuf found))))
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(fn read-desktop-file [f]
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(let [parsed (inifile.parse f)
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vals (. parsed "Desktop Entry")]
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(when vals.Icon (tset vals "IconImage" (find-icon vals.Icon)))
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vals))
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(fn all-apps []
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(var apps-table [])
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;; for i in ${XDG_DATA_DIRS//:/ /} ; do ls $i/applications/*.desktop ;done
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(each [path (string.gmatch (os.getenv "XDG_DATA_DIRS") "[^:]*")]
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(let [apps (.. path "/applications/")]
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(when (lfs.attributes apps)
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(each [f (lfs.dir apps)]
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(when (= (f:sub -8) ".desktop")
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(let [attrs (read-desktop-file (.. apps f))]
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(when (not attrs.NoDisplay)
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(table.insert apps-table attrs))))))))
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apps-table)
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;; Exec entries in desktop files may contain %u %f and other characters
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;; in which the launcheris supposed to interpolate filenames/urls etc.
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;; We don't
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(fn parse-percents [str]
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(str:gsub "%%(.)" (fn [c] (if (= c "%") "%" ""))))
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(fn spawn-async [vec]
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(let [pid (posix.unistd.fork)]
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(if (> pid 0)
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true
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(< pid 0)
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(assert (= "can't spawn" nil))
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(posix.spawn vec))))
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(fn launch [app]
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; (print (if app.DBusActivatable "dbus" "not dbus"))
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(let [cmd (parse-percents app.Exec)]
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(if app.Terminal
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(spawn-async ["/usr/bin/env" "kitty" cmd])
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(spawn-async ["/usr/bin/env" "sh" "-c" cmd]))
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(os.exit)))
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(fn button-for [app]
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(doto (Gtk.Button
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{
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:label app.Name
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:image-position Gtk.PositionType.TOP
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:relief Gtk.ReliefStyle.NONE
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:on_clicked #(launch app) })
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(: :set_image app.IconImage)))
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(let [grid (Gtk.Grid {
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; :orientation "vertical"
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:column_spacing 8
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:row_spacing 8
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})
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scrolled-window (Gtk.ScrolledWindow {})
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window (Gtk.Window {
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:title "Saturn V"
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:default_width 720
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:default_height 800
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})]
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(each [i app (ipairs (all-apps))]
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(let [x (% (- i 1) 8)
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y (// (- i 1) 8)]
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(grid:attach (button-for app) x y 1 1)))
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(scrolled-window:add grid)
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(window:add scrolled-window)
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(window:show_all))
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(Gtk:main)
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