5 files changed, 115 insertions, 25 deletions
diff --git a/src/main/scala/reading/Route.scala b/src/main/scala/reading/Route.scala
index c1f993e..9295d49 100644
--- a/src/main/scala/reading/Route.scala
+++ b/src/main/scala/reading/Route.scala
@@ -1,6 +1,7 @@
 package reading
 
-import org.scalajs.dom
+import org.scalajs.dom.window
+import org.scalajs.dom.raw.PopStateEvent
 import scala.scalajs.js.URIUtils
 
 import rx.Var
@@ -12,10 +13,10 @@ sealed trait Route
 object Route {
   case class Books(filters: Seq[Filter]) extends Route
 
-  val current: Var[Route] = Var(parse(dom.window.location.hash))
+  val current: Var[Route] = Var(parse(window.location.hash))
 
-  dom.window.onpopstate = (e: dom.raw.PopStateEvent) => {
-    current() = parse(dom.window.location.hash)
+  window.onpopstate = (e: PopStateEvent) => {
+    current() = parse(window.location.hash)
   }
 
   def parse(hash: String): Route =
@@ -50,7 +51,7 @@ object Route {
       case Books(filters) => "/books" ++ (if (filters.nonEmpty) filters.map(filter => s"${filter.kind}=${filter.nonFormattedName}").mkString("?", "&", "") else "")
       case _ => "/books"
     }
-    dom.window.location.origin + dom.window.location.pathname + "#" + URIUtils.encodeURI(hash)
+    window.location.origin + window.location.pathname + "#" + URIUtils.encodeURI(hash)
   }
 
   def goTo(route: Route): Unit = {
@@ -59,6 +60,6 @@ object Route {
   }
 
   def push(route: Route): Unit = {
-    dom.window.history.pushState(null, "", url(route));
+    window.history.pushState(null, "", url(route));
   }
 }
diff --git a/src/main/scala/reading/component/widget/Animate.scala b/src/main/scala/reading/component/widget/Animate.scala
new file mode 100644
index 0000000..0e848aa
--- /dev/null
+++ b/src/main/scala/reading/component/widget/Animate.scala
@@ -0,0 +1,55 @@
+package reading.component.widget
+
+import scala.collection.mutable.Map
+
+import org.scalajs.dom.{ window, document }
+import org.scalajs.dom.raw.HTMLElement
+
+object Animate {
+  val animationFrames: Map[String, Int] = Map.empty
+
+  def apply(
+    id: String,
+    duration: Double,
+    transition: (Double, Double) => Double,
+    animate: (Double, HTMLElement) => Unit,
+    onEnd: => Unit = ()
+  ): Unit = {
+    animationFrames.get(id) match {
+      case Some(animationFrame) => window.cancelAnimationFrame(animationFrame)
+      case None => ()
+    }
+    val animationFrame = window.requestAnimationFrame(ts =>
+      frame(id, ts, duration, transition, animate, onEnd)(ts))
+    animationFrames.put(id, animationFrame)
+    ()
+  }
+
+  private def frame(
+    id: String,
+    start: Double,
+    duration: Double,
+    transition: (Double, Double) => Double,
+    animate: (Double, HTMLElement) => Unit,
+    onEnd: => Unit
+  )(
+    timestamp: Double
+  ): Unit = {
+    document.getElementById(id).asInstanceOf[HTMLElement] match {
+      case element: HTMLElement =>
+        val elapsed = timestamp - start
+        if (elapsed < duration) {
+          animate(Transition.easeOut(elapsed, duration), element)
+          val animationFrame = window.requestAnimationFrame(frame(id, start, duration, transition, animate, onEnd))
+          animationFrames.put(id, animationFrame)
+        } else {
+          animate(1, element)
+          onEnd
+        }
+      case _ =>
+        val animationFrame = window.requestAnimationFrame(ts => frame(id, ts, duration, transition, animate, onEnd)(ts))
+        animationFrames.put(id, animationFrame)
+    }
+    ()
+  }
+}
diff --git a/src/main/scala/reading/component/widget/Modal.scala b/src/main/scala/reading/component/widget/Modal.scala
index fe10d1f..02c42be 100644
--- a/src/main/scala/reading/component/widget/Modal.scala
+++ b/src/main/scala/reading/component/widget/Modal.scala
@@ -1,24 +1,41 @@
 package reading.component.widget
 
-import rx._
-import Ctx.Owner.Unsafe._
+import scala.util.Random
 
-import scalatags.JsDom.all._
+import org.scalajs.dom.raw.HTMLElement
+import rx._
+import rx.Ctx.Owner.Unsafe._
 import scalacss.Defaults._
 import scalacss.ScalatagsCss._
+import scalatags.JsDom.all._
 
 import reading.component.widget.style.{ Modal => ModalStyle }
 import reading.utils.{ RxAttr }
 
 object Modal {
   def apply(onClose: => Unit)(content: HtmlTag): HtmlTag = {
+    val modalId = s"modal${Random.nextInt}"
+
+    Animate(
+      id = modalId,
+      duration = 300,
+      transition = Transition.easeOut,
+      animate = (progress, element) => {
+      element.style.opacity = s"$progress"
+      element.childNodes(2) match {
+        case e: HTMLElement => e.style.transform = s"translateY(${40 * (progress - 1)}px)"
+      }
+    }
+    )
+
     div(
       ModalStyle.render,
       ModalStyle.modal,
+      id := modalId,
 
       div(
         ModalStyle.curtain,
-        RxAttr(onclick, Rx(() => onClose))
+        RxAttr(onclick, Rx(() => close(modalId, onClose)))
       ),
 
       div(
@@ -26,10 +43,19 @@ object Modal {
         content,
         button(
           ModalStyle.close,
-          RxAttr(onclick, Rx(() => onClose)),
+          RxAttr(onclick, Rx(() => close(modalId, onClose))),
           "Fermer"
         )
       )
     )
   }
+
+  private def close(modalId: String, onClose: => Unit): Unit =
+    Animate(
+      id = modalId,
+      duration = 300,
+      transition = Transition.linear,
+      onEnd = onClose,
+      animate = (progress, element) => element.style.opacity = s"${1 - progress}"
+    )
 }
diff --git a/src/main/scala/reading/component/widget/Transition.scala b/src/main/scala/reading/component/widget/Transition.scala
new file mode 100644
index 0000000..aa8ff3d
--- /dev/null
+++ b/src/main/scala/reading/component/widget/Transition.scala
@@ -0,0 +1,12 @@
+package reading.component.widget
+
+object Transition {
+  def linear(progress: Double, total: Double): Double =
+    progress / total
+
+  def easeIn(progress: Double, total: Double): Double =
+    math.pow(progress, 2) / math.pow(total, 2)
+
+  def easeOut(progress: Double, total: Double): Double =
+    (-1) * (progress / total) * (progress / total - 2)
+}
diff --git a/src/main/scala/reading/component/widget/style/Modal.scala b/src/main/scala/reading/component/widget/style/Modal.scala
index bfcc276..ae37c4b 100644
--- a/src/main/scala/reading/component/widget/style/Modal.scala
+++ b/src/main/scala/reading/component/widget/style/Modal.scala
@@ -19,23 +19,19 @@ object Modal extends StyleSheet.Inline {
     right(0.px),
     bottom(0.px),
     left(0.px),
-    overflowY.scroll
+    overflowY.scroll,
+    opacity(0)
   )
 
   val curtain = style(
-    Media.desktop(
-      width(100.%%),
-      height(100.%%),
-      position.absolute,
-      top(0.px),
-      left(0.px),
-      backgroundColor(C.black.value),
-      opacity(0.5),
-      cursor.pointer
-    ),
-    Media.mobile(
-      display.none
-    )
+    width(100.%%),
+    height(100.%%),
+    position.absolute,
+    top(0.px),
+    left(0.px),
+    backgroundColor(C.black.value),
+    opacity(0.7),
+    cursor.pointer
   )
 
   val content = style(