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package com.lihaoyi.workbench
import upickle._
import org.scalajs.dom
import org.scalajs.dom.extensions._
import upickle.{Reader, Writer, Js}
import scala.scalajs.js
import scala.scalajs.js.annotation.JSExport
import scalajs.concurrent.JSExecutionContext.Implicits.runNow
/**
* The connection from workbench server to the client
*/
object Wire extends autowire.Server[Js.Value, upickle.Reader, upickle.Writer] with ReadWrite{
def wire(parsed: Js.Arr): Unit = {
val Js.Arr(path, args: Js.Obj) = parsed
val req = new Request(upickle.readJs[Seq[String]](path), args.value.toMap)
Wire.route[Api](WorkbenchClient).apply(req)
}
}
@JSExport
object WorkbenchClient extends Api{
@JSExport
val shadowBody = dom.document.body.cloneNode(deep = true)
@JSExport
var interval = 1000
@JSExport
var success = false
@JSExport
def main(bootSnippet: String, host: String, port: Int): Unit = {
Ajax.post(s"http://$host:$port/notifications").onComplete{
case util.Success(data) =>
if (!success) println("Workbench connected")
success = true
interval = 1000
json.read(data.responseText)
.asInstanceOf[Js.Arr]
.value
.foreach(v => Wire.wire(v.asInstanceOf[Js.Arr]))
main(bootSnippet, host, port)
case util.Failure(e) =>
if (!success) println("Workbench disconnected " + e)
success = false
interval = math.min(interval * 2, 30000)
dom.setTimeout(() => main(bootSnippet, host, port), interval)
}
}
@JSExport
override def clear(): Unit = {
dom.document.asInstanceOf[js.Dynamic].body = shadowBody.cloneNode(true)
for(i <- 0 until 100000){
dom.clearTimeout(i)
dom.clearInterval(i)
}
}
@JSExport
override def reload(): Unit = {
dom.console.log("Reloading page...")
dom.location.reload()
}
@JSExport
override def run(path: String, bootSnippet: Option[String]): Unit = {
val tag = dom.document.createElement("script")
var loaded = false
tag.setAttribute("src", path)
bootSnippet.foreach{ bootSnippet =>
tag.onreadystatechange = (e: dom.Event) => {
if (!loaded) {
dom.console.log("Workbench reboot")
js.eval(bootSnippet)
}
loaded = true
}
tag.asInstanceOf[js.Dynamic].onload = tag.onreadystatechange
}
dom.document.head.appendChild(tag)
}
@JSExport
override def print(level: String, msg: String): Unit = {
level match {
case "error" => dom.console.error(msg)
case "warn" => dom.console.warn(msg)
case "info" => dom.console.info(msg)
case "log" => dom.console.log(msg)
}
}
}
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