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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/. */
#include "nsISupports.idl"
webidl Node;
// Note: the iterator does not handle DOM mutations gracefully. So if
// the underlying DOM we are iterating over is changed, the behavior
// of the walker is undefined. (With the current implementation we
// cache the siblings of the current node and this list is not updated
// when a mutation occurs).
[scriptable, uuid(6657e8eb-b646-48e7-993e-cfa6e96415b4)]
interface inIDeepTreeWalker : nsISupports
{
attribute boolean showAnonymousContent;
attribute boolean showSubDocuments;
// By default the walker skips document nodes from the iteration,
// by setting this flag to true this behavior can be altered.
attribute boolean showDocumentsAsNodes;
void init(in Node aRoot, in unsigned long aWhatToShow);
// Methods and attributes that look like TreeWalker.
// Note: normally parentNode cannot go further up on the tree once it reached
// the root, but setting currentNode does not have this limitation. If currentNode
// is set to a node that does not have the root as its ancestor the walk can be
// continued from there, and once we reach a node that is 'under' the root, the
// limitation for the parentNode will work again.
readonly attribute Node root;
readonly attribute unsigned long whatToShow;
attribute Node currentNode;
Node parentNode();
Node firstChild();
Node lastChild();
Node previousSibling();
Node nextSibling();
Node previousNode();
Node nextNode();
};