Files
legado/modules/rhino1.7.4/src/main/java/com/script/rhino/JavaAdapter.kt
2023-03-30 10:45:37 +08:00

104 lines
3.7 KiB
Kotlin

/*
* Copyright (c) 2005, 2006, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.script.rhino
import com.script.Invocable
import org.mozilla.javascript.*
import org.mozilla.javascript.Function
/**
* This class implements Rhino-like JavaAdapter to help implement a Java
* interface in JavaScript. We support this using Invocable.getInterface.
* Using this JavaAdapter, script author could write:
*
*
* var r = new java.lang.Runnable() {
* run: function() { script... }
* };
*
*
* r.run();
* new java.lang.Thread(r).start();
*
*
* Note that Rhino's JavaAdapter support allows extending a Java class and/or
* implementing one or more interfaces. This JavaAdapter implementation does
* not support these.
*
* @author A. Sundararajan
* @since 1.6
*/
@Suppress("UNUSED_PARAMETER")
internal class JavaAdapter private constructor(private val engine: Invocable) : ScriptableObject(),
Function {
override fun getClassName(): String {
return "JavaAdapter"
}
@Throws(RhinoException::class)
override fun call(cx: Context, scope: Scriptable, thisObj: Scriptable, args: Array<Any>): Any {
return construct(cx, scope, args)
}
@Throws(RhinoException::class)
override fun construct(cx: Context, scope: Scriptable, args: Array<Any>): Scriptable {
return if (args.size == 2) {
var clazz: Class<*>? = null
val obj = args[0]
if (obj is Wrapper) {
val o = obj.unwrap()
if (o is Class<*> && o.isInterface) {
clazz = o
}
} else if (obj is Class<*> && obj.isInterface) {
clazz = obj
}
if (clazz == null) {
throw Context.reportRuntimeError("JavaAdapter: first arg should be interface Class")
} else {
val topLevel = getTopLevelScope(scope)
Context.toObject(
engine.getInterface(args[1], clazz),
topLevel
)
}
} else {
throw Context.reportRuntimeError("JavaAdapter requires two arguments")
}
}
companion object {
@JvmStatic
@Throws(RhinoException::class)
fun init(cx: Context, scope: Scriptable, sealed: Boolean) {
val topLevel = scope as RhinoTopLevel
val engine: Invocable = topLevel.scriptEngine
val obj = JavaAdapter(engine)
obj.parentScope = scope
obj.prototype = getFunctionPrototype(scope)
putProperty(topLevel, "JavaAdapter", obj)
}
}
}