More optimizations and fixes - R2 release candidate???

It's clinging to within an inch of its life, but the 192K save/load is working,
 now I've cleaned up the critical path.

Any requests that'll bloat critical APIs are going to have to be terminated,
 though, because this is getting out of hand.

code/apps/app-textedit.lua

@@ -26,8 +26,9 @@ local lines = {
 --  and then after an action occurs switches to "append" until *any cursor action is performed*.
 -- The way I have things setup is that you perform J then K(repeat) *instead*, which means you have to explicitly say "destroy current clipboard".
 
-local event = require("event")(neo)
 local clipsrc = neo.requireAccess("x.neo.pub.globals", "clipboard")
+local windows = neo.requireAccess("x.neo.pub.window", "windows")
+local files = neo.requireAccess("x.neo.pub.base", "files").showFileDialogAsync
 
 local cursorX = 1
 local cursorY = math.ceil(#lines / 2)
@@ -36,8 +37,8 @@ local ctrlFlag = false
 local dialogLock = false
 local appendFlag = false
 local sW, sH = 37, #lines + 2
-local windows = neo.requestAccess("x.neo.pub.window")
 local window = windows(sW, sH)
+local filedialog = nil
 local flush
 
 local function splitCur()
@@ -59,11 +60,7 @@ end
 local cbs = {}
 
 local function fileDialog(writing, callback)
- local tag = neo.requestAccess("x.neo.pub.base").showFileDialogAsync(writing)
+ filedialog = function (res)
- local f
- function f(_, evt, tag2, res)
-  if evt == "filedialog" then
-   if tag == tag2 then
   local ok, e = pcall(callback, res)
   if not ok then
    e = unicode.safeTextFormat(tostring(e))
@@ -74,11 +71,8 @@ local function fileDialog(writing, callback)
     e
    }
   end
-    event.ignore(f)
  end
-  end
+ files(writing)
- end
- event.listen("x.neo.pub.base", f)
 end
 
 -- Save/Load
@@ -86,14 +80,19 @@ local function startSave()
  dialogLock = true
  fileDialog(true, function (res)
   dialogLock = false
+  local x = ""
   if res then
    for k, v in ipairs(lines) do
     if k ~= 1 then
-     res.write("\n" .. v)
+     x = x .. "\n"
-    else
+    end
-     res.write(v)
+    x = x .. v
+    while #x >= neo.readBufSize do
+     res.write(x:sub(1, neo.readBufSize))
+     x = x:sub(neo.readBufSize + 1)
     end
    end
+   res.write(x)
    res.close()
   end
  end)
@@ -107,7 +106,7 @@ local function startLoad()
    lines = {}
    local lb = ""
    while true do
-    local l = res.read(64)
+    local l = res.read(neo.readBufSize)
     if not l then
      table.insert(lines, lb)
      cursorX = 1
@@ -196,7 +195,7 @@ local function putLetter(ch)
  lines[cursorY] = a .. b
  cursorX = unicode.len(a) + 1
 end
-local function ev_key(ka, kc, down)
+local function key(ka, kc, down)
  if dialogLock then
   return false
  end
@@ -363,7 +362,44 @@ local function ev_key(ka, kc, down)
  return false
 end
 
-local function ev_clipboard(t)
+flush = function ()
+ for i = 1, sH do
+  window.span(1, i, getline(i), 0xFFFFFF, 0)
+ end
+end
+
+neo.scheduleTimer(os.uptime() + 0.5)
+
+while true do
+ local e = {coroutine.yield()}
+ if e[1] == "k.timer" then
+  cFlash = not cFlash
+  local csY = math.ceil(sH / 2)
+  window.span(1, csY, getline(csY), 0xFFFFFF, 0)
+  neo.scheduleTimer(os.uptime() + 0.5)
+ elseif e[1] == "x.neo.pub.window" then
+  if e[2] == window.id then
+   if e[3] == "line" then
+    window.span(1, e[4], getline(e[4]), 0xFFFFFF, 0)
+   elseif filedialog then
+   elseif e[3] == "touch" then
+    -- reverse:
+    --local rY = (y + cursorY) - math.ceil(sH / 2)
+    local csY = math.ceil(sH / 2)
+    local nY = math.max(1, math.min(#lines, (math.floor(e[5]) - csY) + cursorY))
+    cursorY = nY
+    clampCursorX()
+    flush()
+   elseif e[3] == "key" then
+    if key(e[4], e[5], e[6]) then
+     flush()
+    end
+   elseif e[3] == "focus" then
+    ctrlFlag = false
+   elseif e[3] == "close" then
+    return
+   elseif e[3] == "clipboard" then
+    local t = e[4]
     for i = 1, unicode.len(t) do
      local c = unicode.sub(t, i, i)
      if c ~= "\r" then
@@ -373,63 +409,18 @@ local function ev_clipboard(t)
       putLetter(c)
      end
     end
-end
-
-flush = function ()
- for i = 1, sH do
-  window.span(1, i, getline(i), 0xFFFFFF, 0)
- end
-end
-local flash
-flash = function ()
- cFlash = not cFlash
- -- reverse:
- --local rY = (y + cursorY) - math.ceil(sH / 2)
- local csY = math.ceil(sH / 2)
- window.span(1, csY, getline(csY), 0xFFFFFF, 0)
- event.runAt(os.uptime() + 0.5, flash)
-end
-event.runAt(os.uptime() + 0.5, flash)
-
-while true do
- local e = {event.pull()}
- if e[1] == "x.neo.pub.window" then
-  if e[2] == window.id then
-   if e[3] == "touch" then
-    -- reverse:
-    --local rY = (y + cursorY) - math.ceil(sH / 2)
-    local csY = math.ceil(sH / 2)
-    local nY = math.max(1, math.min(#lines, (math.floor(e[5]) - csY) + cursorY))
-    cursorY = nY
-    clampCursorX()
-    flush()
-   end
-   if e[3] == "key" then
-    if ev_key(e[4], e[5], e[6]) then
-     flush()
-    end
-   end
-   if e[3] == "line" then
-    window.span(1, e[4], getline(e[4]), 0xFFFFFF, 0)
-   end
-   if e[3] == "focus" then
-    ctrlFlag = false
-   end
-   if e[3] == "close" then
-    return
-   end
-   if e[3] == "clipboard" then
-    ev_clipboard(e[4])
     flush()
    end
   elseif cbs[e[2]] then
    if e[3] == "line" then
     cbs[e[2]][2](1, 1, cbs[e[2]][3], 0, 0xFFFFFF)
-   end
+   elseif e[3] == "close" then
-   if e[3] == "close" then
     cbs[e[2]][1]()
     cbs[e[2]] = nil
    end
   end
+ elseif e[1] == "x.neo.pub.base" and e[2] == "filedialog" and filedialog then
+  filedialog(e[4])
+  filedialog = nil
  end
 end

code/apps/app-wget.lua

@@ -30,7 +30,10 @@ local function doMainWin()
    w.reset(doWorking())
    local nurl = url
    local fd = neoux.fileDialog(true)
-   if not fd then return end
+   if not fd then
+    w.reset(doMainWin())
+    return
+   end
    -- download!
    local req, err = primaryINet.request(nurl)
    if not req then

code/apps/sys-icecap.lua

@@ -282,6 +282,12 @@ rootAccess.securityPolicy = function (pid, proc, perm, req)
  end
 end
 
+local function dcall(c, ...)
+ local ok, e = pcall(...)
+ if not ok then
+  nexus.startDialog(tostring(e), c .. "err")
+ end
+end
 function theEventHandler(...)
  local ev = {...}
  if ev[1] == "k.procdie" then
@@ -297,23 +303,20 @@ function theEventHandler(...)
   local nt = todo
   todo = {}
   for _, v in ipairs(nt) do
-   local ok, e = pcall(v)
+   dcall("t", v)
-   if not ok then
-    nexus.startDialog(tostring(e), "terr")
-   end
   end
  elseif ev[1] == "k.registration" then
   if onReg[ev[2]] then
    local tmp = onReg[ev[2]]
    onReg[ev[2]] = nil
    for _, v in ipairs(tmp) do
-    v()
+    dcall("r", v)
    end
   end
  elseif ev[1] == "x.neo.pub.window" then
   local v = everestWindows[ev[2]]
   if v then
-   v(table.unpack(ev, 3))
+   dcall("w", v, table.unpack(ev, 3))
   end
  end
 end

code/libs/sys-filedialog.lua

@@ -19,7 +19,6 @@ local w, h, ctrl = 30, 8, false
 local l, selection, unknownTx
 local node, wnd
 
-
 local function prepareNode(n)
  node = n
  l = node.list()
@@ -112,7 +111,7 @@ local function key(ka, kc, down)
    prepareNode(res)
   end
  elseif selection == #l + 1 then
-  if ka == 8 then
+  if ka == 8 or kc == 211 then
    unknownTx = unicode.sub(unknownTx, 1, unicode.len(unknownTx) - 1)
   elseif ka ~= 0 then
    unknownTx = unknownTx .. unicode.char(ka)