synrc / nitro

🔥 NITRO: Nitrogen Web Framework RFC 6455

NITRO: Nitrogen Web Framework

Features

• Full HTML5 and SVG Support
• Support for N2O Erlang WebSocket Application Server
• Native Erlang way for UI/UX controls as HTML/JS/CSS components
• Tag Inheritance
• Polymorphic Tuples
• Compact size (2500 LOC)
• As fast as DTL and EEX
• Elixir, MIX and HEX support
• Custom Tags, ARIA, Web Components

Credits

• Maxim Sokhatsky — adaptation
• Rusty Klophaus — original author
• Jesse Gumm — author of http://nitrogenproject.com/

OM A HUM

nitro's Issues

How do I use #file{} to upload a file.

Get/Set Browser Cookies

Unless I missed something in N2O/NITRO, I need a interface or way to Get/Set Browser Cookies, so requesting it:
nitro:cookie(Key) -> Binary
nitro:cookie(Key, Value, Path, MinutesToLive)

I tried to work around this, it is possible to set browser cookie like this:
nitro:wire(nitro:f("document.cookie=\"~s=~s\"",["user","Joe"])),

But unable to read cookies since it seems #api erlang callback does not work:
nitro:wire(#api{name ="getCookies",delegate=index}),

But browser console reports:

SyntaxError: Unexpected identifier 'getCookies'

Otherwise I could maybe have retrieved it by this in erlang callback nitro:wire(<<"document.getCookies('document.cookie');">>),

Pickled messaged

https://github.com/synrc/nitro/blob/master/man/nitro_n2o.htm#L68-L70
Those 3 lines contains 3 different names for message:
Pickle message - singular without 'ed'
Those messages - plural
Pickled messaged - singular with too many 'ed'.
Some normalization needed.

{reason,{badrecord,elementname}}

I have a strange problem when trying to add any new records and I don't know how to handle this.
These work fine:

-record(svglink,?DEFAULT_BASE).

-record(svglink,{?ELEMENT_BASE(element_svglink)}).

This cause error with any record name and additional elements:

-record(svglink,{?ELEMENT_BASE(element_svglink), something_else})

{[{reason,{badrecord,svglink}},
  {mfa,{n2o_cowboy,handle,2}},
  {stacktrace,
      [{element_svglink,render_element,1,
           [{file,
                "/data/Erlang/test-n2o-nitro/samples/deps/nitro/src/elements/element_svglink.erl"},
            {line,6}]},
       {wf_render_elements,render_element,1,
           [{file,
                "/data/Erlang/test-n2o-nitro/samples/deps/nitro/src/render/wf_render_elements.erl"},
            {line,26}]},
       {wf_render,'-render/1-lc$^0/1-0-',1,
           [{file,
                "/data/Erlang/test-n2o-nitro/samples/deps/nitro/src/render/wf_render.erl"},
            {line,10}]},
       {wf_render,'-render/1-lc$^0/1-0-',1,
           [{file,
                "/data/Erlang/test-n2o-nitro/samples/deps/nitro/src/render/wf_render.erl"},
            {line,10}]},
       {element_svg,render_element,1,
           [{file,
                "/data/Erlang/test-n2o-nitro/samples/deps/nitro/src/elements/element_svg.erl"},
            {line,7}]},
       {wf_render_elements,render_element,1,
           [{file,
                "/data/Erlang/test-n2o-nitro/samples/deps/nitro/src/render/wf_render_elements.erl"},
            {line,26}]},
       {wf_render,'-render/1-lc$^0/1-0-',1,
           [{file,
                "/data/Erlang/test-n2o-nitro/samples/deps/nitro/src/render/wf_render.erl"},
            {line,10}]},
       {wf_render,'-render/1-lc$^0/1-0-',1,
           [{file,
                "/data/Erlang/test-n2o-nitro/samples/deps/nitro/src/render/wf_render.erl"},
            {line,10}]}]},
  {req,
      [{socket,#Port<0.52776>},
       {transport,ranch_tcp},
       {connection,keepalive},
       {pid,<0.1510.0>},
       {method,<<"GET">>},
       {version,'HTTP/1.1'},
       {peer,{{127,0,0,1},43904}},
       {host,<<"localhost">>},
       {host_info,undefined},
       {port,8000},
       {path,<<"/">>},
       {path_info,undefined},
       {qs,<<>>},
       {qs_vals,undefined},
       {bindings,[]},
       {headers,
           [{<<"host">>,<<"localhost:8000">>},
            {<<"user-agent">>,
             <<"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:34.0) Gecko/20100101 Firefox/34.0">>},
            {<<"accept">>,
             <<"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8">>},
            {<<"accept-language">>,<<"ru-RU,ru;q=0.8,en-US;q=0.5,en;q=0.3">>},
            {<<"accept-encoding">>,<<"gzip, deflate">>},
            {<<"cookie">>,
             <<"BX_USER_ID=b6ea441ad6bca38509e78fbb6854a4c2; site-sid=c292b3a17b2e289493b95bc69c5cceb9; z_ua=c%3Ddesktop%26u%3D1%26t%3D1%26w%3D1920%26h%3D1080; __utma=111872281.763977304.1443060238.1443060238.1443064762.2; __utmz=111872281.1443060238.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); _ga=GA1.1.763977304.1443060238; z_sid=GvPucYDUgQS1cozWHLov0DveX76PNSMm; __utmc=111872281; activity=8|40">>},
            {<<"connection">>,<<"keep-alive">>},
            {<<"cache-control">>,<<"max-age=0">>}]},
       {p_headers,[{<<"connection">>,[<<"keep-alive">>]}]},
       {cookies,undefined},
       {meta,[]},
       {body_state,waiting},
       {buffer,<<>>},
       {multipart,undefined},
       {resp_compress,false},
       {resp_state,waiting},
       {resp_headers,[]},
       {resp_body,<<>>},
       {onresponse,undefined}]},
  {state,{state,undefined,undefined}}],
 [{cowboy_protocol,execute,4,
      [{file,
           "/data/Erlang/test-n2o/samples/deps/cowboy/src/cowboy_protocol.erl"},
       {line,442}]}]}

Validations don't pass on Edit Form for calendar values

nitro:q looks wrong.

For nitro:q you have

nitro/src/nitro.erl

Lines 8 to 10 in 14c7cae

	q(Key) -> q(Key,get(Key)).
	q(_,undefined) -> [];
	q(_,Val) -> Val.

I suspect what you want is:

q(Key) -> get(Key, []).
q(Key, Default) ->
  case get(Key) of
    undefined -> Default;
    Value     -> Value
  end.