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-rw-r--r--dom/base/nsINodeList.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/dom/base/nsINodeList.h b/dom/base/nsINodeList.h
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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 "nsIDOMNodeList.h"
+#include "nsWrapperCache.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 nsIDOMNodeList,
+ 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;
+
+ using nsIDOMNodeList::Item;
+
+ uint32_t Length()
+ {
+ uint32_t length;
+ GetLength(&length);
+ return length;
+ }
+ virtual nsIContent* Item(uint32_t aIndex) = 0;
+ nsIContent* IndexedGetter(uint32_t aIndex, bool& aFound)
+ {
+ nsIContent* item = Item(aIndex);
+ aFound = !!item;
+ return item;
+ }
+};
+
+#define NS_NODELIST_OFFSET_AND_INTERFACE_TABLE_BEGIN(_class) \
+ NS_OFFSET_AND_INTERFACE_TABLE_BEGIN_AMBIGUOUS(_class, nsINodeList)
+
+NS_DEFINE_STATIC_IID_ACCESSOR(nsINodeList, NS_INODELIST_IID)
+
+#endif /* nsINodeList_h___ */