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New reactify integration module for FRP + persistence
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61
reactify/shared/src/main/scala/fabric/react/ReactParent.scala
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,61 @@ | ||
| /* | ||
| * Copyright (c) 2021 Typelevel | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy of | ||
| * this software and associated documentation files (the "Software"), to deal in | ||
| * the Software without restriction, including without limitation the rights to | ||
| * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of | ||
| * the Software, and to permit persons to whom the Software is furnished to do so, | ||
| * subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in all | ||
| * copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS | ||
| * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR | ||
| * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER | ||
| * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | ||
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
| */ | ||
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| package fabric.react | ||
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| import fabric.{obj, Json} | ||
| import fabric.rw._ | ||
| import reactify._ | ||
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| trait ReactParent { | ||
| private val _json: Var[Json] = Var(load().getOrElse(obj())) | ||
| private val list: Var[List[RWVar[_]]] = Var(Nil) | ||
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| def json: Val[Json] = _json | ||
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| protected def modify(f: Json => Json): Unit = synchronized { | ||
| val modified = f(json()) | ||
| _json @= modified | ||
| } | ||
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| protected def reactive[T: RW](name: String, default: => T): Var[T] = synchronized { | ||
| val rwv = RWVar[T](name, () => default) | ||
| list @= rwv :: list() | ||
| rwv.v | ||
| } | ||
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| protected def load(): Option[Json] | ||
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| case class RWVar[T](name: String, default: () => T)(implicit rw: RW[T]) { | ||
| val v: Var[T] = Var(load()) | ||
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| v.attachAndFire { value => | ||
| modify { json => | ||
| json.merge(obj(name -> value.asJson)) | ||
| } | ||
| } | ||
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| protected def load(): T = json().get(name) match { | ||
| case Some(j) => j.as[T] | ||
| case None => default() | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,65 @@ | ||
| /* | ||
| * Copyright (c) 2021 Typelevel | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy of | ||
| * this software and associated documentation files (the "Software"), to deal in | ||
| * the Software without restriction, including without limitation the rights to | ||
| * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of | ||
| * the Software, and to permit persons to whom the Software is furnished to do so, | ||
| * subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in all | ||
| * copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS | ||
| * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR | ||
| * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER | ||
| * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | ||
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
| */ | ||
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| package spec | ||
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| import fabric._ | ||
| import fabric.react.ReactParent | ||
| import reactify._ | ||
| import org.scalatest.matchers.should.Matchers | ||
| import org.scalatest.wordspec.AnyWordSpec | ||
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| class ReactParentSpec extends AnyWordSpec with Matchers { | ||
| "ReactParent" should { | ||
| "properly handle initialization of Person" in { | ||
| Person.name() should be("John Doe") | ||
| Person.age() should be(21) | ||
| Person.json() should be( | ||
| obj( | ||
| "name" -> "John Doe", | ||
| "age" -> 21 | ||
| ) | ||
| ) | ||
| } | ||
| "change the name and age" in { | ||
| Person.name @= "Jane Doe" | ||
| Person.age @= 20 | ||
| Person.json() should be( | ||
| obj( | ||
| "name" -> "Jane Doe", | ||
| "age" -> 20 | ||
| ) | ||
| ) | ||
| } | ||
| } | ||
| } | ||
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| object Person extends ReactParent { | ||
| val name: Var[String] = reactive[String]("name", "") | ||
| val age: Var[Int] = reactive[Int]("age", 0) | ||
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| override protected def load(): Option[Json] = Some( | ||
| obj( | ||
| "name" -> "John Doe", | ||
| "age" -> 21 | ||
| ) | ||
| ) | ||
| } |