@@ -26,7 +26,7 @@ import java.util.concurrent.atomic.AtomicBoolean
2626
2727/**
2828 * Surrounds the filtered text with <script> and CDATA tags.
29- *
29+ *
3030 * <p>Useful for including inline Javascript.</p>
3131 *
3232 * @author <a href="http://hiramchirino.com">Hiram Chirino</a>
@@ -62,7 +62,7 @@ object CoffeeScriptFilter extends Filter with Log {
6262
6363 if (serverSideCompile) {
6464 try {
65- Compiler .compile(content, Some (context.currentTemplate)).fold({
65+ CoffeeScriptCompiler .compile(content, Some (context.currentTemplate)).fold({
6666 error =>
6767 warn(" Could not compile coffeescript: " + error, error)
6868 throw new CompilerException (error.message, Nil )
@@ -83,22 +83,48 @@ object CoffeeScriptFilter extends Filter with Log {
8383 clientSideCompile
8484 }
8585 }
86+ }
87+
88+ /**
89+ * Compiles a .coffee file into JS on the server side
90+ */
91+ object CoffeeScriptPipeline extends Filter with Log {
8692
8793 /**
88- * A Scala / Rhino Coffeescript compiler.
94+ * Installs the coffeescript pipeline
8995 */
90- object Compiler {
91-
92- /**
93- * Compiles a string of Coffeescript code to Javascript.
94- *
95- * @param code the Coffeescript code
96- * @param sourceName a descriptive name for the code unit under compilation (e.g a filename)
97- * @param bare if true, no function wrapper will be generated
98- * @return the compiled Javascript code
99- */
100- def compile (code : String , sourceName : Option [String ] = None , bare : Boolean = false )
101- : Either [CompilationError , String ] = withContext { ctx =>
96+ def apply (engine : TemplateEngine ) {
97+ engine.pipelines += " coffee" -> List (NoLayoutFilter (this , " text/javascript"
98+ engine.templateExtensionsFor(" js" += " coffee"
99+ }
100+
101+ def filter (context : RenderContext , content : String ) = {
102+ CoffeeScriptCompiler .compile(content, Some (context.currentTemplate)).fold({
103+ error =>
104+ warn(" Could not compile coffeescript: " + error, error)
105+ throw new CompilerException (error.message, Nil )
106+ }, {
107+ coffee => coffee
108+ })
109+ }
110+ }
111+
112+ /**
113+ * A Scala / Rhino Coffeescript compiler.
114+ */
115+ object CoffeeScriptCompiler {
116+
117+ /**
118+ * Compiles a string of Coffeescript code to Javascript.
119+ *
120+ * @param code the Coffeescript code
121+ * @param sourceName a descriptive name for the code unit under compilation (e.g a filename)
122+ * @param bare if true, no function wrapper will be generated
123+ * @return the compiled Javascript code
124+ */
125+ def compile (code : String , sourceName : Option [String ] = None , bare : Boolean = false )
126+ : Either [CompilationError , String ] = withContext {
127+ ctx =>
102128 val scope = ctx.initStandardObjects()
103129 ctx.evaluateReader(
104130 scope,
@@ -113,22 +139,20 @@ object CoffeeScriptFilter extends Filter with Log {
113139 try {
114140 Right (compileFunc.call(ctx, scope, coffee, Array (code, opts)).asInstanceOf [String ])
115141 } catch {
116- case e : JavaScriptException =>
142+ case e : JavaScriptException =>
117143 Left (CompilationError (sourceName, e.getValue.toString))
118144 }
119- }
145+ }
120146
121- def withContext [T ](f : Context => T ): T = {
122- val ctx = Context .enter()
123- try {
124- ctx.setOptimizationLevel(- 1 ) // Do not compile to byte code (max 64kb methods)
125- f(ctx)
126- } finally {
127- Context .exit()
128- }
147+ def withContext [T ](f : Context => T ): T = {
148+ val ctx = Context .enter()
149+ try {
150+ ctx.setOptimizationLevel(- 1 ) // Do not compile to byte code (max 64kb methods)
151+ f(ctx)
152+ } finally {
153+ Context .exit()
129154 }
130155 }
131-
132- case class CompilationError (sourceName : Option [String ], message : String )
133156}
134157
158+ case class CompilationError (sourceName : Option [String ], message : String )
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