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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsINodeList_h___
#define nsINodeList_h___
#include "nsWrapperCache.h"
#include "nsISupports.h"
#include "nsIContent.h"
// IID for the nsINodeList interface
#define NS_INODELIST_IID \
{ \
0xadb5e54c, 0x6e96, 0x4102, { \
0x8d, 0x40, 0xe0, 0x12, 0x3d, 0xcf, 0x48, 0x7a \
} \
}
class nsIContent;
class nsINode;
/**
* An internal interface for a reasonably fast indexOf.
*/
class nsINodeList : public nsISupports, public nsWrapperCache {
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_INODELIST_IID)
/**
* Get the index of the given node in the list. Will return -1 if the node
* is not in the list.
*/
virtual int32_t IndexOf(nsIContent* aContent) = 0;
/**
* Get the root node for this nodelist.
*/
virtual nsINode* GetParentObject() = 0;
virtual uint32_t Length() = 0;
virtual nsIContent* Item(uint32_t aIndex) = 0;
nsIContent* IndexedGetter(uint32_t aIndex, bool& aFound) {
nsIContent* item = Item(aIndex);
aFound = !!item;
return item;
}
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsINodeList, NS_INODELIST_IID)
#endif /* nsINodeList_h___ */
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