content/base/public/nsINodeList.h

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/content/base/public/nsINodeList.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,60 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.8 +
     1.9 +#ifndef nsINodeList_h___
    1.10 +#define nsINodeList_h___
    1.11 +
    1.12 +#include "nsIDOMNodeList.h"
    1.13 +#include "nsWrapperCache.h"
    1.14 +#include "nsIContent.h"
    1.15 +
    1.16 +// IID for the nsINodeList interface
    1.17 +#define NS_INODELIST_IID \
    1.18 +{ 0xadb5e54c, 0x6e96, 0x4102, \
    1.19 + { 0x8d, 0x40, 0xe0, 0x12, 0x3d, 0xcf, 0x48, 0x7a } }
    1.20 +
    1.21 +/**
    1.22 + * An internal interface for a reasonably fast indexOf.
    1.23 + */
    1.24 +class nsINodeList : public nsIDOMNodeList,
    1.25 +                    public nsWrapperCache
    1.26 +{
    1.27 +public:
    1.28 +  NS_DECLARE_STATIC_IID_ACCESSOR(NS_INODELIST_IID)
    1.29 +
    1.30 +  /**
    1.31 +   * Get the index of the given node in the list.  Will return -1 if the node
    1.32 +   * is not in the list.
    1.33 +   */
    1.34 +  virtual int32_t IndexOf(nsIContent* aContent) = 0;
    1.35 +
    1.36 +  /**
    1.37 +   * Get the root node for this nodelist.
    1.38 +   */
    1.39 +  virtual nsINode* GetParentObject() = 0;
    1.40 +
    1.41 +  using nsIDOMNodeList::Item;
    1.42 +
    1.43 +  uint32_t Length()
    1.44 +  {
    1.45 +    uint32_t length;
    1.46 +    GetLength(&length);
    1.47 +    return length;
    1.48 +  }
    1.49 +  virtual nsIContent* Item(uint32_t aIndex) = 0;
    1.50 +  nsIContent* IndexedGetter(uint32_t aIndex, bool& aFound)
    1.51 +  {
    1.52 +    nsIContent* item = Item(aIndex);
    1.53 +    aFound = !!item;
    1.54 +    return item;
    1.55 +  }
    1.56 +};
    1.57 +
    1.58 +#define NS_NODELIST_OFFSET_AND_INTERFACE_TABLE_BEGIN(_class)                  \
    1.59 +  NS_OFFSET_AND_INTERFACE_TABLE_BEGIN_AMBIGUOUS(_class, nsINodeList)
    1.60 +
    1.61 +NS_DEFINE_STATIC_IID_ACCESSOR(nsINodeList, NS_INODELIST_IID)
    1.62 +
    1.63 +#endif /* nsINodeList_h___ */

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