defmodule NITRO.Combo.Search do
require NITRO
require Record
Record.defrecord(:state, lastMsg: [], timer: [], uid: [], pid: [], chunks: 0, value: [], reader: [], opts: [], feed: [])
def start(uid, value, field, feed0, opts) do
feed = :nitro.to_binary(feed0)
state = state(uid: uid, pid: self(), value: value, reader: :erlang.apply(:kvs, :reader, [feed]), opts: opts, feed: feed)
stop(uid, field)
pi =
NITRO.pi(
module: NITRO.Combo.Search,
table: :async,
state: state,
name: "comboSearch#{uid}",
timeout: :brutal_kill,
restart: :temporary
)
pid = :erlang.spawn_link(:nitro_pi, :start_link, [pi])
:nitro_pi.cache(:async,{:async,"comboSearch#{uid}"},pid,:infinity)
end
def stop(uid, _field) do
case :nitro_pi.pid(:async, "comboSearch#{uid}") do
[] -> :ok
pid ->
:erlang.exit(pid, :kill)
:nitro_pi.cache(:async, {:async, "comboSearch#{uid}"}, :undefined)
end
end
def comboScroll(NITRO.comboScroll(uid: uid)) do
case :nitro_pi.pid(:async, "comboSearch#{uid}") do
[] -> []
pid -> send(pid, {:filterComboValues, :append, []})
end
end
def keyUp(NITRO.comboKey(uid: uid, value: value, dom: field, feed: feed, delegate: module)) do
opts = [index: NITRO.Combo.index(module), field: field, delegate: module]
comboContainer = :nitro.atom([:comboContainer, :nitro.to_list(field)])
:nitro.display(:nitro.atom([:comboContainer, field]), :block)
:nitro.clear(comboContainer)
:nitro.wire("comboCloseFormById('#{:nitro.atom([:nitro.to_list(field), 'form'])}');")
:nitro.wire("comboLookupChange('#{field}');")
:nitro.wire(NITRO.bind(target: :nitro.to_binary(comboContainer), type: :scroll, postback: onscroll(uid, field, module)))
start(uid, value, field, feed, opts)
end
def onscroll(uid, field, delegate), do:
:erlang.iolist_to_binary([
"if (event.target && (event.target.scrollTop + event.target.offsetHeight + 10 >= event.target.scrollHeight)) {",
"ws.send(enc(tuple(atom('direct'),
tuple(atom('comboScroll'),",
"bin('#{uid}'),",
"bin('#{field}'),",
"atom('#{delegate}'))",
")));",
"}"
])
def proc(:init, NITRO.pi(state: state(value: v) = st) = pi) do
send(self(), {:filterComboValues, :init, v})
{:ok, NITRO.pi(pi, state: state(st, lastMsg: :erlang.timestamp(), timer: ping(100)))}
end
def proc({:check}, NITRO.pi(state: state(timer: t, lastMsg: {_, sec, _}) = st) = pi) do
:erlang.cancel_timer(t)
case :erlang.timestamp() do
{_, x, _} when x - sec >= 60 -> {:stop, :normal, NITRO.pi(pi, state: state(st, timer: []))}
_ -> {:noreply, NITRO.pi(pi, state: state(st, timer: ping(10000)))}
end
end
def proc({:filterComboValues, cmd, value0}, NITRO.pi(state: state(chunks: chunks) = st) = pi) do
state(uid: uid, feed: feed, reader: r, value: prev, pid: pid, opts: opts) = st
m = Keyword.get(opts, :delegate, [])
field = Keyword.get(opts, :field, [])
value = case cmd do :append -> prev; _ -> :string.lowercase(:unicode.characters_to_list(value0, :unicode)) end
r1 = :erlang.apply(:kvs, :take, [:erlang.apply(:kvs, :setfield, [r, :args, 10])])
case :erlang.apply(:kvs, :field, [r1, :args]) do
[] ->
send(pid, {:direct, NITRO.comboInsert(uid: uid, dom: field, delegate: m, chunks: chunks, status: :finished)})
{:stop, :normal, NITRO.pi(pi, state: state(st, reader: :erlang.apply(:kvs, :setfield, [r1, :args, []])))}
rows ->
filtered =
case value do
'all' -> rows
_ ->
vals = :string.split(:string.trim(value), " ", :all)
if length(vals) > 1, do:
:lists.filter(fn x -> :lists.all(fn v ->:lists.any(&filter(v, x, &1), Keyword.get(opts, :index, [])) end, vals) end, rows),
else:
:lists.filter(fn x -> :lists.any(&filter(value, x, &1), Keyword.get(opts, :index, [])) end, rows)
end
newChunks = chunks + length(filtered)
send(pid, {:direct, NITRO.comboInsert(uid: uid, dom: field, delegate: m, chunks: newChunks, feed: feed, rows: filtered)})
chunks < 100 and
case :nitro_pi.pid(:async, "comboSearch#{uid}") do [] -> []; pid -> send(pid, {:filterComboValues, cmd, value0}) end
{:noreply, NITRO.pi(pi, state: state(st, lastMsg: :erlang.timestamp(), value: value, chunks: newChunks, reader: :erlang.apply(:kvs, :setfield, [r1, :args, []])))}
end
end
def proc(_, pi), do: {:noreply, pi}
def ping(milliseconds), do: :erlang.send_after(milliseconds, self(), {:check})
defp filter(val, obj, i) do
fld =
if is_function(i) do
i.(obj)
else
fldVal = :erlang.apply(:kvs, :field, [obj, i])
if fldVal == elem(obj, 0), do: :nitro.to_list(fldVal), else: fldVal
end |> NITRO.Combo.to_list()
fld != elem(obj, 0) and :string.rstr(:string.lowercase(:nitro.to_list(fld)), val) > 0
end
end