82 lines
1.5 KiB
CoffeeScript
82 lines
1.5 KiB
CoffeeScript
class ZeroWebsocket
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constructor: (url) ->
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@url = url
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@next_message_id = 1
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@waiting_cb = {}
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@init()
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init: ->
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@
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connect: ->
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@ws = new WebSocket(@url)
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@ws.onmessage = @onMessage
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@ws.onopen = @onOpenWebsocket
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@ws.onerror = @onErrorWebsocket
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@ws.onclose = @onCloseWebsocket
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onMessage: (e) =>
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message = JSON.parse(e.data)
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cmd = message.cmd
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if cmd == "response"
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if @waiting_cb[message.to]?
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@waiting_cb[message.to](message.result)
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else
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@log "Websocket callback not found:", message
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else if cmd == "ping"
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@response message.id, "pong"
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else
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@route cmd, message
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route: (cmd, message) =>
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@log "Unknown command", message
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response: (to, result) ->
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@send {"cmd": "response", "to": to, "result": result}
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cmd: (cmd, params={}, cb=null) ->
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@send {"cmd": cmd, "params": params}, cb
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send: (message, cb=null) ->
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if not message.id?
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message.id = @next_message_id
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@next_message_id += 1
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@ws.send(JSON.stringify(message))
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if cb
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@waiting_cb[message.id] = cb
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log: (args...) =>
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console.log "[ZeroWebsocket]", args...
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onOpenWebsocket: (e) =>
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@log "Open", e
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if @onOpen? then @onOpen(e)
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onErrorWebsocket: (e) =>
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@log "Error", e
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if @onError? then @onError(e)
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onCloseWebsocket: (e) =>
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@log "Closed", e
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if e.code == 1000
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@log "Server error, please reload the page"
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else # Connection error
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setTimeout (=>
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@log "Reconnecting..."
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@connect()
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), 10000
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if @onClose? then @onClose(e)
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window.ZeroWebsocket = ZeroWebsocket
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