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nitro src render wf_event.erl
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src/render/wf_event.erl

-module(wf_event).
-author('Maxim Sokhatsky').
-author('Andrey Martemyanov').
-include_lib("nitro/include/cx.hrl").
-include_lib("nitro/include/nitro.hrl").
-compile(export_all).
-record(ev, { module, msg, trigger, name }).
-define(B(E), nitro:to_binary(E)).
-define(L(E), nitro:to_list(E)).
target({ps, {qa, Id}, Ps}) ->
T = target({qa,Id}), P = nitro:js_escape(Ps),
["var t=",T,";t.map(ts => '",P,"'.split('.').reduce((a,p)=>(a&&a[p]?a[p]:null),ts)).filter(o=>o)"];
target({ps,Id,Ps}) ->
T = target(Id), P = nitro:js_escape(Ps),
["var ts=",T,",ps = '",P,"'.split('.').reduce((a,p)=>(a&&a[p]?a[p]:null),ts);","ps&&ps"];
target({qs,S}) -> ["qs('",nitro:js_escape(?L(S)), "')"];
target({qa,S}) -> ["Array.from(qa('",nitro:js_escape(?L(S)), "'))"];
target({g,T}) -> nitro:js_escape(?L(T));
target(Id) -> ["qi('",nitro:js_escape(?L(Id)),"')"].
new(P,E,D,N,Data,Source) -> new(P,E,D,N,Data,Source,<<>>).
new(bin,Data) -> <<"ws.send(enc(tuple(atom('bin'),bin('",(nitro:pickle(Data))/binary,"'))));">>.
new([], _, _, _, _, _, _) -> <<>>;
new(undefined, _, _, _, _, _, _) -> <<>>;
new(Postback, Element, Delegate, Name, Data, Source, Validation) ->
Module = nitro:coalesce([Delegate, ?CTX#cx.module]),
Join=fun([]) -> [];
([E]) -> [$'|E]++[$'];
([H|T]) -> [[$'|H]++[$']] ++ [ [$,,$'|E]++[$'] || E <- T ] end,
Event = #ev{name=Name, module=Module, msg=Postback, trigger=Element},
list_to_binary(["{ if (validateSources([",Join([ nitro:to_list(S) || S <- Source, S =/= []]),
"])) { ",?B(Validation)," ws.send(enc(tuple(atom('",?B(application:get_env(n2o,event,pickle)),"'),bin('",
Element,"'),bin('",nitro:pickle(Event),"'),",Data,"))); } else console.log('Validation Error'); }"]).