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/*
* Copyright (c) 2011, 2021, 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
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*/
package com.sun.webkit.dom;
import com.sun.webkit.Disposer;
import com.sun.webkit.DisposerRecord;
import com.sun.webkit.Invoker;
import java.security.AccessControlContext;
import java.security.AccessController;
import java.util.concurrent.atomic.AtomicInteger;
import netscape.javascript.JSException;
class JSObject extends netscape.javascript.JSObject {
private static final String UNDEFINED = new String("undefined");
static final int JS_CONTEXT_OBJECT = 0;
static final int JS_DOM_NODE_OBJECT = 1;
static final int JS_DOM_WINDOW_OBJECT = 2;
private final long peer; // C++ peer - now it is the DOMObject instance
private final int peer_type; // JS_XXXX const
// for testing purposes only
private static AtomicInteger peerCount = new AtomicInteger();
JSObject(long peer, int peer_type) {
this.peer = peer;
this.peer_type = peer_type;
if (peer_type == JS_CONTEXT_OBJECT) {
// if peer type is JS_CONTEXT_OBJECT, the JSObject is already GC Protected
// from native side and we want to add JSObject to Disposer, only in this case.
Disposer.addRecord(this, new SelfDisposer(peer, peer_type));
peerCount.incrementAndGet();
}
}
long getPeer() {
return peer;
}
// for testing purposes only
static int test_getPeerCount() {
return peerCount.get();
}
private static native void unprotectImpl(long peer, int peer_type);
@Override
public Object eval(String s) throws JSException {
Invoker.getInvoker().checkEventThread();
return evalImpl(peer, peer_type, s);
}
private static native Object evalImpl(long peer, int peer_type,
String name);
@Override
public Object getMember(String name) {
Invoker.getInvoker().checkEventThread();
return getMemberImpl(peer, peer_type, name);
}
private static native Object getMemberImpl(long peer, int peer_type,
String name);
@SuppressWarnings("removal")
@Override
public void setMember(String name, Object value) throws JSException {
Invoker.getInvoker().checkEventThread();
setMemberImpl(peer, peer_type, name, value,
AccessController.getContext());
}
private static native void setMemberImpl(long peer, int peer_type,
String name, Object value,
@SuppressWarnings("removal") AccessControlContext acc);
@Override
public void removeMember(String name) throws JSException {
Invoker.getInvoker().checkEventThread();
removeMemberImpl(peer, peer_type, name);
}
private static native void removeMemberImpl(long peer, int peer_type,
String name);
@Override
public Object getSlot(int index) throws JSException {
Invoker.getInvoker().checkEventThread();
return getSlotImpl(peer, peer_type, index);
}
private static native Object getSlotImpl(long peer, int peer_type,
int index);
@SuppressWarnings("removal")
@Override
public void setSlot(int index, Object value) throws JSException {
Invoker.getInvoker().checkEventThread();
setSlotImpl(peer, peer_type, index, value,
AccessController.getContext());
}
private static native void setSlotImpl(long peer, int peer_type,
int index, Object value,
@SuppressWarnings("removal") AccessControlContext acc);
@SuppressWarnings("removal")
@Override
public Object call(String methodName, Object... args) throws JSException {
Invoker.getInvoker().checkEventThread();
return callImpl(peer, peer_type, methodName, args,
AccessController.getContext());
}
private static native Object callImpl(long peer, int peer_type,
String methodName, Object[] args,
@SuppressWarnings("removal") AccessControlContext acc);
@Override
public String toString() {
Invoker.getInvoker().checkEventThread();
return toStringImpl(peer, peer_type);
}
private static native String toStringImpl(long peer, int peer_type);
@Override
public boolean equals(Object other) {
return other == this
|| (other != null && other.getClass() == JSObject.class
&& peer == ((JSObject) other).peer);
}
@Override
public int hashCode() {
return (int) (peer ^ (peer >> 17));
}
private static JSException fwkMakeException(Object value) {
String msg = value == null ? null : value.toString();
// Would like to set wrappedException, but can't do that while
// also setting the message. Perhaps we should create a subclass.
JSException ex
= new JSException(value == null ? null : value.toString());
if (value instanceof Throwable)
ex.initCause((Throwable) value);
return ex;
}
private static final class SelfDisposer implements DisposerRecord {
long peer;
final int peer_type;
private SelfDisposer(long peer, int peer_type) {
this.peer = peer;
this.peer_type = peer_type;
}
@Override public void dispose() {
if (peer != 0) {
JSObject.unprotectImpl(peer, peer_type);
peer = 0;
peerCount.decrementAndGet();
}
}
}
}
