OC-KittenOS/code/apps/app-launcher.lua

-- Copyright (C) 2018-2021 by KittenOS NEO contributors
--
-- Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted.
--
-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF
-- THIS SOFTWARE.

-- app-launcher: The launcher
local event = require("event")(neo)
local neoux, err = require("neoux")
if not neoux then error(err) end -- This app is basically neoux's testcase
neoux = neoux(event, neo)

local running = true

local buttons = {}
local xlen = 0
local xlb = 1
local yp = 1
local appNames = neo.listApps()
for k, v in ipairs(appNames) do
 if v:sub(1, 4) == "app-" then
  local vs = unicode.safeTextFormat(v)
  local vl = unicode.len(vs) + xlb + 1
  if xlen < vl then
   xlen = vl
  end
  table.insert(buttons, neoux.tcbutton(xlb, yp, vs, function (w)
   -- Button pressed.
   local pid, err = neo.executeAsync(v)
   if not pid then
    neoux.startDialog(tostring(err), "launchErr")
   else
    w.close()
    running = false
   end
  end))
  yp = yp + 1
  if yp == 16 then
   yp = 1
   xlb = xlen + 1
  end
 end
end

neoux.create(xlen, math.min(15, #buttons), nil, neoux.tcwindow(xlen, math.min(15, #buttons), buttons, function (w)
 w.close()
 running = false
end, 0xFFFFFF, 0))

while running do
 event.pull()
end