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/*******************************************************************************
* Copyright (c) 2003, 2012 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.browser;
import org.eclipse.swt.internal.C;
import org.eclipse.swt.internal.mozilla.*;
class SimpleEnumerator {
XPCOMObject supports;
XPCOMObject simpleEnumerator;
int refCount = 0;
nsISupports[] values;
int index = 0;
SimpleEnumerator (nsISupports[] values) {
this.values = values;
for (int i = 0; i < values.length; i++) {
values[i].AddRef ();
}
createCOMInterfaces ();
}
int AddRef () {
refCount++;
return refCount;
}
void createCOMInterfaces () {
/* Create each of the interfaces that this object implements */
supports = new XPCOMObject (new int[] {2, 0, 0}) {
public int /*long*/ method0 (int /*long*/[] args) {return QueryInterface (args[0], args[1]);}
public int /*long*/ method1 (int /*long*/[] args) {return AddRef ();}
public int /*long*/ method2 (int /*long*/[] args) {return Release ();}
};
simpleEnumerator = new XPCOMObject (new int[] {2, 0, 0, 1, 1}) {
public int /*long*/ method0 (int /*long*/[] args) {return QueryInterface (args[0], args[1]);}
public int /*long*/ method1 (int /*long*/[] args) {return AddRef ();}
public int /*long*/ method2 (int /*long*/[] args) {return Release ();}
public int /*long*/ method3 (int /*long*/[] args) {return HasMoreElements (args[0]);}
public int /*long*/ method4 (int /*long*/[] args) {return GetNext (args[0]);}
};
}
void disposeCOMInterfaces () {
if (supports != null) {
supports.dispose ();
supports = null;
}
if (simpleEnumerator != null) {
simpleEnumerator.dispose ();
simpleEnumerator = null;
}
if (values != null) {
for (int i = 0; i < values.length; i++) {
values[i].Release ();
}
values = null;
}
}
int /*long*/ getAddress () {
return simpleEnumerator.getAddress ();
}
int QueryInterface (int /*long*/ riid, int /*long*/ ppvObject) {
if (riid == 0 || ppvObject == 0) return XPCOM.NS_ERROR_NO_INTERFACE;
nsID guid = new nsID ();
XPCOM.memmove (guid, riid, nsID.sizeof);
if (guid.Equals (nsISupports.NS_ISUPPORTS_IID)) {
XPCOM.memmove (ppvObject, new int /*long*/[] {supports.getAddress ()}, C.PTR_SIZEOF);
AddRef ();
return XPCOM.NS_OK;
}
if (guid.Equals (nsISimpleEnumerator.NS_ISIMPLEENUMERATOR_IID)) {
XPCOM.memmove (ppvObject, new int /*long*/[] {simpleEnumerator.getAddress ()}, C.PTR_SIZEOF);
AddRef ();
return XPCOM.NS_OK;
}
XPCOM.memmove (ppvObject, new int /*long*/[] {0}, C.PTR_SIZEOF);
return XPCOM.NS_ERROR_NO_INTERFACE;
}
int Release () {
refCount--;
if (refCount == 0) disposeCOMInterfaces ();
return refCount;
}
int HasMoreElements (int /*long*/ _retval) {
boolean more = values != null && index < values.length;
XPCOM.memmove (_retval, new boolean[] {more});
return XPCOM.NS_OK;
}
int GetNext (int /*long*/ _retval) {
if (values == null || index == values.length) return XPCOM.NS_ERROR_UNEXPECTED;
nsISupports value = values[index++];
value.AddRef ();
XPCOM.memmove (_retval, new int /*long*/[] {value.getAddress ()}, C.PTR_SIZEOF);
return XPCOM.NS_OK;
}
}
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