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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| package controllers | ||
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| import play.api.http.{LazyHttpErrorHandler, HttpErrorHandler} | ||
| import play.api.mvc.Action | ||
| import play.api.mvc.AnyContent | ||
| import scala.util.matching.Regex | ||
| import play.api.{Configuration, Play} | ||
| import org.webjars.WebJarAssetLocator | ||
|
|
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| import javax.inject.{ Inject, Singleton } | ||
|
|
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| /** | ||
| * A Play framework controller that is able to resolve WebJar paths. | ||
| * <p>org.webjars.play.webJarFilterExpr can be used to declare a regex for the | ||
| * files that should be looked for when searching within WebJars. By default | ||
| * all files are searched for. | ||
| */ | ||
| @Singleton | ||
| class KMWebJarAssets @Inject() (errorHandler: HttpErrorHandler, configuration: Configuration) extends AssetsBuilder(errorHandler) { | ||
|
|
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| val WebjarFilterExprDefault = """.*""" | ||
| val WebjarFilterExprProp = "org.webjars.play.webJarFilterExpr" | ||
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| val webJarFilterExpr = configuration.getString(WebjarFilterExprProp).getOrElse(WebjarFilterExprDefault) | ||
|
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| import play.api.Play.current | ||
| lazy val webJarAssetLocator = new WebJarAssetLocator( | ||
| WebJarAssetLocator.getFullPathIndex( | ||
| new Regex(webJarFilterExpr).pattern, Play.application.classloader)) | ||
|
|
||
| /** | ||
| * Controller Method to serve a WebJar asset | ||
| * | ||
| * @param file the file to serve | ||
| * @return the Action that serves the file | ||
| */ | ||
| def at(file: String): Action[AnyContent] = { | ||
| this.at("/" + WebJarAssetLocator.WEBJARS_PATH_PREFIX, file) | ||
| } | ||
|
|
||
| /** | ||
| * Locate a file in a WebJar | ||
| * | ||
| * @example Passing in `jquery.min.js` will return `jquery/1.8.2/jquery.min.js` assuming the jquery WebJar version 1.8.2 is on the classpath | ||
| * | ||
| * @param file the file or partial path to find | ||
| * @return the path to the file (sans-the webjars prefix) | ||
| * | ||
| */ | ||
| def locate(file: String): String = { | ||
| webJarAssetLocator.getFullPath(file).stripPrefix(WebJarAssetLocator.WEBJARS_PATH_PREFIX + "/") | ||
| } | ||
|
|
||
| /** | ||
| * Locate a file in a WebJar | ||
| * | ||
| * @param webjar the WebJar artifactId | ||
| * @param file the file or partial path to find | ||
| * @return the path to the file (sans-the webjars prefix) | ||
| * | ||
| */ | ||
| def locate(webjar: String, file: String): String = { | ||
| webJarAssetLocator.getFullPath(webjar, file).stripPrefix(WebJarAssetLocator.WEBJARS_PATH_PREFIX + "/") | ||
| } | ||
|
|
||
| /** | ||
| * Get the full path to a file in a WebJar without validating that the file actually exists | ||
| * | ||
| * @example Calling fullPath("react", "react.js") will return the full path to the file in the WebJar because react.js exists at the root of the WebJar | ||
| * | ||
| * @param webjar the WebJar artifactId | ||
| * @param path the full path to a file in the WebJar | ||
| * @return the path to the file (sans-the webjars prefix) | ||
| * | ||
| */ | ||
| def fullPath(webjar: String, path: String): String = { | ||
| val version = webJarAssetLocator.getWebJars.get(webjar) | ||
| s"$webjar/$version/$path" | ||
| } | ||
|
|
||
| } | ||
|
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| object KMWebJarAssets extends KMWebJarAssets(LazyHttpErrorHandler, play.api.Play.current.configuration) |
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