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Size: 1.31 KB
Versions: 38
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Stored size: 1.31 KB
Contents
# most of this code is based on https://github.com/livereload/livereload-js/blob/master/src/protocol.coffee
#
class @ProtocolError
constructor: (reason, data) ->
@message = "LiveReload protocol error (#{reason}) after receiving data: \"#{data}\"."
class @ProtocolParser
constructor: (@handler) ->
@reset()
reset: ->
@send_hello = false
process: (data) ->
try
if not @send_hello
message = @_parseMessage(data, ['hello'])
@send_hello = true
@handler.connected(message)
else
message = @_parseMessage(data, ['heartbeat', 'styles', 'reload', 'compile_start', 'compile_end'])
@handler.message(message)
catch e
if e instanceof ProtocolError
@handler.error e
else
throw e
_parseMessage: (data, validNames) ->
try
message = JSON.parse(data)
catch e
throw new ProtocolError('unparsable JSON', data)
unless message.name
throw new ProtocolError('missing "name" key', data)
unless message.name in validNames
throw new ProtocolError("invalid command '#{message.name}', only valid commands are: #{validNames.join(', ')})", data)
return message
Version data entries
38 entries across 38 versions & 1 rubygems