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author | Jakob Odersky <jodersky@gmail.com> | 2015-12-28 11:54:00 +0100 |
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committer | Jakob Odersky <jakob@odersky.com> | 2016-01-29 13:50:37 -0800 |
commit | 4f4c799a6d9ccf333a3e609a2464e2f317875af7 (patch) | |
tree | 599232dd8c97fa9eb8f3426ea4375216ecadb386 /mavigator-index/src/main/scala/vfd/index/Util.scala | |
parent | c77bf21e7f4c197d34d23b2aebe5953a75d099e2 (diff) | |
download | mavigator-4f4c799a6d9ccf333a3e609a2464e2f317875af7.tar.gz mavigator-4f4c799a6d9ccf333a3e609a2464e2f317875af7.tar.bz2 mavigator-4f4c799a6d9ccf333a3e609a2464e2f317875af7.zip |
Rename project and update dependencies
Diffstat (limited to 'mavigator-index/src/main/scala/vfd/index/Util.scala')
-rw-r--r-- | mavigator-index/src/main/scala/vfd/index/Util.scala | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/mavigator-index/src/main/scala/vfd/index/Util.scala b/mavigator-index/src/main/scala/vfd/index/Util.scala new file mode 100644 index 0000000..09793df --- /dev/null +++ b/mavigator-index/src/main/scala/vfd/index/Util.scala @@ -0,0 +1,39 @@ +package vfd.index + +import scala.language.implicitConversions + +import org.scalajs.dom.html + +import rx._ + +import scala.util.Try +import scala.util.Success +import scala.util.Failure + +import scalatags.JsDom.all._ + +object Util { + + /** + * Copied from https://github.com/lihaoyi/workbench-example-app/blob/todomvc/src/main/scala/example/Framework.scala + * + * Sticks some Rx into a Scalatags fragment, which means hooking up an Obs + * to propagate changes into the DOM via the element's ID. Monkey-patches + * the Obs onto the element itself so we have a reference to kill it when + * the element leaves the DOM (e.g. it gets deleted). + */ + implicit def rxMod[T <: html.Element](r: Rx[HtmlTag]): Frag = { + def rSafe = r.toTry match { + case Success(v) => v.render + case Failure(e) => span(e.toString, backgroundColor := "red").render + } + var last = rSafe + Obs(r, skipInitial = true) { + val newLast = rSafe + last.parentElement.replaceChild(newLast, last) + last = newLast + } + bindNode(last) + } + +}
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