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-rw-r--r--layout/inspector/inDeepTreeWalker.h65
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diff --git a/layout/inspector/inDeepTreeWalker.h b/layout/inspector/inDeepTreeWalker.h
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+/* 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 __inDeepTreeWalker_h___
+#define __inDeepTreeWalker_h___
+
+#include "inIDeepTreeWalker.h"
+
+#include "nsCOMPtr.h"
+#include "nsIDOMNode.h"
+#include "nsTArray.h"
+
+class nsINodeList;
+class inIDOMUtils;
+
+class inDeepTreeWalker final : public inIDeepTreeWalker
+{
+public:
+ NS_DECL_ISUPPORTS
+ NS_DECL_INIDEEPTREEWALKER
+
+ inDeepTreeWalker();
+
+ nsresult SetCurrentNode(nsIDOMNode* aCurrentNode,
+ nsINodeList* aSiblings);
+protected:
+ virtual ~inDeepTreeWalker();
+
+ already_AddRefed<nsIDOMNode> GetParent();
+ nsresult EdgeChild(nsIDOMNode** _retval, bool aReverse);
+
+ bool mShowAnonymousContent;
+ bool mShowSubDocuments;
+ bool mShowDocumentsAsNodes;
+
+ // The root node. previousNode and parentNode will return
+ // null from here.
+ nsCOMPtr<nsIDOMNode> mRoot;
+ nsCOMPtr<nsIDOMNode> mCurrentNode;
+ nsCOMPtr<inIDOMUtils> mDOMUtils;
+
+ // We cache the siblings of mCurrentNode as a list of nodes.
+ // Notes: normally siblings are all the children of the parent
+ // of mCurrentNode (that are interesting for use for the walk)
+ // and mCurrentIndex is the index of mCurrentNode in that list
+ // But if mCurrentNode is a (sub) document then instead of
+ // storing a list that has only one element (the document)
+ // and setting mCurrentIndex to null, we set mSibilings to null.
+ // The reason for this is purely technical, since nsINodeList is
+ // nsIContent based hence we cannot use it to store a document node.
+ nsCOMPtr<nsINodeList> mSiblings;
+
+ // Index of mCurrentNode in the mSiblings list.
+ int32_t mCurrentIndex;
+
+ // Currently unused. Should be a filter for nodes.
+ uint32_t mWhatToShow;
+};
+
+// {BFCB82C2-5611-4318-90D6-BAF4A7864252}
+#define IN_DEEPTREEWALKER_CID \
+{ 0xbfcb82c2, 0x5611, 0x4318, { 0x90, 0xd6, 0xba, 0xf4, 0xa7, 0x86, 0x42, 0x52 } }
+
+#endif // __inDeepTreeWalker_h___