Fixes #16: add optional htmlAttributes parameter.

README.md

@@ -65,6 +65,16 @@ Usage for the Play Framework with [fingerprinting for public assets](https://www
   name => getClass.getResource(s"/public/$name") != null)
 ```
 
+Additional HTML attributes can be added to the generated `<script>` tags:
+```
+@scalajs.html.scripts(
+  projectName = "client",
+  name => s"/assets/$name",
+  name => getClass.getResource(s"/public/$name") != null,
+  Html("""charset="UTF-8" defer""")
+)
+```
+
 Note:
 The Twirl templates require a `resourceExists` function because the application classpath may not be accessible from the library.
 Play for instance, puts libraries in a parent classpath of the application, meaning they can't see the classes provided by the application.

src/main/twirl/scalajs/jsScript.scala.html

@@ -1,3 +1,3 @@
-@(src: String)
+@(src: String, htmlAttributes: Html = Html(""))
 
-<script src="@src" type="text/javascript"></script>
+<script src="@src" type="text/javascript" @htmlAttributes></script>

src/main/twirl/scalajs/jsdeps.scala.html

@@ -1,8 +1,9 @@
 @(projectName:    String,
   assets:         String => String,
-  resourceExists: String => Boolean
+  resourceExists: String => Boolean,
+  htmlAttributes: Html = Html("")
 )
 
 @defining(s"${projectName.toLowerCase}-jsdeps") { jsdeps =>
-  @Seq(s"${jsdeps}.min.js", s"${jsdeps}.js").find(resourceExists).map(name => jsScript(assets(name)))
+  @Seq(s"${jsdeps}.min.js", s"${jsdeps}.js").find(resourceExists).map(name => jsScript(assets(name), htmlAttributes))
 }

src/main/twirl/scalajs/launcher.scala.html

@@ -1,10 +1,11 @@
 @(projectName:    String,
   assets:         String => String,
-  resourceExists: String => Boolean
+  resourceExists: String => Boolean,
+  htmlAttributes: Html = Html("")
 )
 
 @defining(s"${projectName.toLowerCase}-launcher.js") { launcher =>
   @if(resourceExists(launcher)) {
-    @jsScript(assets(launcher))
+    @jsScript(assets(launcher), htmlAttributes)
   }
 }

src/main/twirl/scalajs/scripts.scala.html

@@ -1,8 +1,9 @@
 @(projectName:    String,
   assets:         String => String,
-  resourceExists: String => Boolean
+  resourceExists: String => Boolean,
+  htmlAttributes: Html = Html("")
 )
 
-@jsdeps(projectName, assets, resourceExists)
-@selectScript(projectName, assets, resourceExists)
-@launcher(projectName, assets, resourceExists)
+@jsdeps(projectName, assets, resourceExists, htmlAttributes)
+@selectScript(projectName, assets, resourceExists, htmlAttributes)
+@launcher(projectName, assets, resourceExists, htmlAttributes)

src/main/twirl/scalajs/selectScript.scala.html

@@ -1,8 +1,9 @@
 @(projectName:    String,
   assets:         String => String,
-  resourceExists: String => Boolean
+  resourceExists: String => Boolean,
+  htmlAttributes: Html = Html("")
 )
 
 @defining(s"${projectName.toLowerCase}") { name =>
-  @Seq(s"$name-opt.js", s"$name-fastopt.js").find(resourceExists).map(name => jsScript(assets(name)))
+  @Seq(s"$name-opt.js", s"$name-fastopt.js").find(resourceExists).map(name => jsScript(assets(name), htmlAttributes))
 }