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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2013-01-26 13:17:21 -0600
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2013-01-26 13:17:21 -0600
commitdfe289850f068f19ba4a83ab4e7e22a7e09c13c9 (patch)
treec297348a55df66c571de4525646e0b9762427353 /khtml/dom/dom2_traversal.h
parentb7658a0d5eca24a9d37c6e04f88298ef02389db0 (diff)
downloadtdelibs-dfe289850f068f19ba4a83ab4e7e22a7e09c13c9.tar.gz
tdelibs-dfe289850f068f19ba4a83ab4e7e22a7e09c13c9.zip
Rename a number of libraries and executables to avoid conflicts with KDE4
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-/*
- * This file is part of the DOM implementation for KDE.
- *
- * (C) 1999 Lars Knoll (knoll@kde.org)
- * (C) 2000 Frederik Holljen (frederik.holljen@hig.no)
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB. If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- * This file includes excerpts from the Document Object Model (DOM)
- * Level 2 Specification (Candidate Recommendation)
- * http://www.w3.org/TR/2000/CR-DOM-Level-2-20000510/
- * Copyright © 2000 W3C® (MIT, INRIA, Keio), All Rights Reserved.
- *
- */
-#ifndef _dom2_traversal_h_
-#define _dom2_traversal_h_
-#include <dom/dom_node.h>
-#include <dom/dom_misc.h>
-
-#include <tdelibs_export.h>
-
-namespace DOM {
-class Node;
-class NodeFilter;
-class NodeImpl;
-class NodeIteratorImpl;
-class NodeFilterImpl;
-class TreeWalkerImpl;
-class CustomNodeFilter;
-class CustomNodeFilterImpl;
-
-/**
- * NodeIterators are used to step through a set of nodes, e.g. the set
- * of nodes in a NodeList, the document subtree governed by a
- * particular node, the results of a query, or any other set of nodes.
- * The set of nodes to be iterated is determined by the implementation
- * of the NodeIterator. DOM Level 2 specifies a single NodeIterator
- * implementation for document-order traversal of a document subtree.
- * Instances of these iterators are created by calling
- * DocumentTraversal.createNodeIterator().
- *
- * Any Iterator that returns nodes may implement the
- * \c NodeIterator interface. Users and vendor libraries may also
- * choose to create Iterators that implement the \c NodeIterator
- * interface.
- *
- */
-class KHTML_EXPORT NodeIterator
-{
- friend class NodeIteratorImpl;
- friend class Document;
-public:
- NodeIterator();
- NodeIterator(const NodeIterator &other);
-
- NodeIterator & operator = (const NodeIterator &other);
-
- ~NodeIterator();
-
- /**
- * The root node of the NodeIterator, as specified when it was created.
- */
- Node root();
-
- /**
- * This attribute determines which node types are presented via the
- * iterator. The available set of constants is defined in the NodeFilter
- * interface. Nodes not accepted by whatToShow will be skipped, but their
- * children may still be considered. Note that this skip takes precedence
- * over the filter, if any.
- */
- unsigned long whatToShow();
-
- /**
- * The NodeFilter used to screen nodes.
- */
- NodeFilter filter();
-
- /**
- * The value of this flag determines whether the children of entity
- * reference nodes are visible to the iterator. If false, they and
- * their descendents will be rejected. Note that this rejection takes
- * precedence over whatToShow and the filter. Also note that this is
- * currently the only situation where NodeIterators may reject a complete
- * subtree rather than skipping individual nodes.
- *
- * To produce a view of the document that has entity references expanded
- * and does not expose the entity reference node itself, use the whatToShow
- * flags to hide the entity reference node and set expandEntityReferences to
- * true when creating the iterator. To produce a view of the document that
- * has entity reference nodes but no entity expansion, use the whatToShow
- * flags to show the entity reference node and set expandEntityReferences to
- * false.
- */
- bool expandEntityReferences();
-
- /**
- * Returns the next node in the set and advances the position of
- * the Iterator in the set. After a NodeIterator is created, the
- * first call to nextNode() returns the first node in the set.
- *
- * @return The next \c Node in the set being iterated
- * over, or \c null if there are no more members in
- * that set.
- *
- * @exception Exceptions from user code
- * Any exceptions raised by a user-written Filter will propagate
- * through.
- *
- */
- Node nextNode();
-
- /**
- * Returns the previous node in the set and moves the position of
- * the Iterator backwards in the set.
- *
- * @return The previous \c Node in the set being
- * iterated over, or \c null if there are no more
- * members in that set.
- *
- * @exception Exceptions from user code
- * Any exceptions raised by a user-written Filter will propagate
- * through.
- *
- */
- Node previousNode();
-
- /**
- * Detaches the NodeIterator from the set which it iterated over,
- * releasing any computational resources and placing the iterator in the
- * INVALID state. After detach has been invoked, calls to nextNode or
- * previousNode will raise the exception INVALID_STATE_ERR.
- */
- void detach();
-
- /**
- * @internal
- * not part of the DOM
- */
- NodeIteratorImpl *handle() const;
- bool isNull() const;
-
-protected:
- NodeIteratorImpl *impl;
- NodeIterator(NodeIteratorImpl *i);
-};
-
-
-/**
- * Filters are objects that know how to "filter out" nodes. If an
- * Iterator or \c TreeWalker is given a filter, before it
- * returns the next node, it applies the filter. If the filter says to
- * accept the node, the Iterator returns it; otherwise, the Iterator
- * looks for the next node and pretends that the node that was
- * rejected was not there.
- *
- * The DOM does not provide any filters. Filter is just an interface
- * that users can implement to provide their own filters.
- *
- * Filters do not need to know how to iterate, nor do they need to
- * know anything about the data structure that is being iterated. This
- * makes it very easy to write filters, since the only thing they have
- * to know how to do is evaluate a single node. One filter may be used
- * with a number of different kinds of Iterators, encouraging code
- * reuse.
- *
- * To create your own custom NodeFilter, define a subclass of
- * CustomNodeFilter which overrides the acceptNode() method and assign
- * an instance of it to the NodeFilter. For more details see the
- * CustomNodeFilter class
- */
-class KHTML_EXPORT NodeFilter
-{
- friend class NodeIterator;
- friend class NodeIteratorImpl;
- friend class TreeWalker;
- friend class TreeWalkerImpl;
- friend class NodeFilterImpl;
-public:
- NodeFilter();
- NodeFilter(const NodeFilter &other);
- NodeFilter(NodeFilterImpl *i);
-
- virtual NodeFilter & operator = (const NodeFilter &other);
-
- virtual ~NodeFilter();
- /**
- * The following constants are returned by the acceptNode()
- * method:
- *
- */
- enum AcceptCode {
- FILTER_ACCEPT = 1,
- FILTER_REJECT = 2,
- FILTER_SKIP = 3
- };
-
- /**
- * These are the available values for the whatToShow parameter.
- * They are the same as the set of possible types for Node, and
- * their values are derived by using a bit position corresponding
- * to the value of NodeType for the equivalent node type.
- *
- */
- enum ShowCode {
- SHOW_ALL = 0xFFFFFFFF,
- SHOW_ELEMENT = 0x00000001,
- SHOW_ATTRIBUTE = 0x00000002,
- SHOW_TEXT = 0x00000004,
- SHOW_CDATA_SECTION = 0x00000008,
- SHOW_ENTITY_REFERENCE = 0x00000010,
- SHOW_ENTITY = 0x00000020,
- SHOW_PROCESSING_INSTRUCTION = 0x00000040,
- SHOW_COMMENT = 0x00000080,
- SHOW_DOCUMENT = 0x00000100,
- SHOW_DOCUMENT_TYPE = 0x00000200,
- SHOW_DOCUMENT_FRAGMENT = 0x00000400,
- SHOW_NOTATION = 0x00000800
- };
-
- /**
- * Test whether a specified node is visible in the logical view of
- * a TreeWalker or NodeIterator. This function will be called by
- * the implementation of TreeWalker and NodeIterator; it is not
- * intended to be called directly from user code.
- *
- * @param n The node to check to see if it passes the filter or
- * not.
- *
- * @return a constant to determine whether the node is accepted,
- * rejected, or skipped, as defined <a
- * href="#Traversal-NodeFilter-acceptNode-constants"> above </a> .
- *
- */
- virtual short acceptNode (const Node &n);
-
- /**
- * @internal
- * not part of the DOM
- */
- virtual NodeFilterImpl *handle() const;
- virtual bool isNull() const;
-
- void setCustomNodeFilter(CustomNodeFilter *custom);
- CustomNodeFilter *customNodeFilter();
- static NodeFilter createCustom(CustomNodeFilter *custom);
-
-protected:
- NodeFilterImpl *impl;
-};
-
-/**
- * CustomNodeFilter can be used to define your own NodeFilter for use
- * with NodeIterators and TreeWalkers. You can create a custom filter
- * by doing the following:
- *
- * class MyCustomNodeFilter {
- * .....
- * virtual short acceptNode (const Node &n);
- * .....
- * }
- *
- * Then in your program:
- *
- * short MyCustomNodeFilter::acceptNode (const Node &n)
- * {
- * if (condition)
- * return NodeFilter::FILTER_ACCEPT;
- * else
- * ....
- * }
- *
- *
- * MyCustomFilter *filter = new MyCustomFilter();
- * NodeFilter nf = NodeFilter::createCustom(filter);
- * NodeIterator ni = document.createNodeIterator(document,NodeFilter.SHOW_ALL,nf,false);
- *
- * The default implementation of acceptNode() returns NodeFilter::FILTER_ACCEPT
- * for all nodes.
- *
- */
-
-class KHTML_EXPORT CustomNodeFilter : public DomShared {
-public:
- CustomNodeFilter();
- virtual ~CustomNodeFilter();
- virtual short acceptNode (const Node &n);
- virtual bool isNull();
-
- /**
- * @internal
- * not part of the DOM
- *
- * Returns a name specifying the type of custom node filter. Useful for checking
- * if an custom node filter is of a particular sublass.
- *
- */
- virtual DOMString customNodeFilterType();
-
-protected:
- /**
- * @internal
- * Reserved. Do not use in your subclasses.
- */
- CustomNodeFilterImpl *impl;
-};
-
-/**
- * \c TreeWalker objects are used to navigate a document
- * tree or subtree using the view of the document defined by its
- * \c whatToShow flags and any filters that are defined
- * for the \c TreeWalker . Any function which performs
- * navigation using a \c TreeWalker will automatically
- * support any view defined by a \c TreeWalker .
- *
- * Omitting nodes from the logical view of a subtree can result in a
- * structure that is substantially different from the same subtree in
- * the complete, unfiltered document. Nodes that are siblings in the
- * TreeWalker view may be children of different, widely separated
- * nodes in the original view. For instance, consider a Filter that
- * skips all nodes except for Text nodes and the root node of a
- * document. In the logical view that results, all text nodes will be
- * siblings and appear as direct children of the root node, no matter
- * how deeply nested the structure of the original document.
- *
- */
-class KHTML_EXPORT TreeWalker
-{
- friend class Document;
- friend class TreeWalkerImpl;
-public:
- TreeWalker();
- TreeWalker(const TreeWalker &other);
-
- TreeWalker & operator = (const TreeWalker &other);
-
- ~TreeWalker();
-
-
- /**
- * The root node of the TreeWalker, as specified when it was created.
- */
- Node root();
-
- /**
- * This attribute determines which node types are presented via the
- * TreeWalker. The available set of constants is defined in the NodeFilter
- * interface. Nodes not accepted by whatToShow will be skipped, but their
- * children may still be considered. Note that this skip takes precedence
- * over the filter, if any.
- */
- unsigned long whatToShow();
-
- /**
- * The filter used to screen nodes.
- */
- NodeFilter filter();
-
- /**
- * The value of this flag determines whether the children of entity
- * reference nodes are visible to the TreeWalker. If false, they and their
- * descendents will be rejected. Note that this rejection takes precedence
- * over whatToShow and the filter, if any.
- *
- * To produce a view of the document that has entity references expanded
- * and does not expose the entity reference node itself, use the whatToShow
- * flags to hide the entity reference node and set expandEntityReferences
- * to true when creating the TreeWalker. To produce a view of the document
- * that has entity reference nodes but no entity expansion, use the
- * whatToShow flags to show the entity reference node and set
- * expandEntityReferences to false.
- */
- bool expandEntityReferences();
-
- /**
- * The node at which the TreeWalker is currently positioned.
- * Alterations to the DOM tree may cause the current node to no longer be
- * accepted by the TreeWalker's associated filter. currentNode may also be
- * explicitly set to any node, whether or not it is within the subtree
- * specified by the root node or would be accepted by the filter and
- * whatToShow flags. Further traversal occurs relative to currentNode even
- * if it is not part of the current view, by applying the filters in the
- * requested direction; if no traversal is possible, currentNode is not changed.
- *
- * @exception DOMException
- * NOT_SUPPORTED_ERR: Raised if an attempt is made to set currentNode to null.
- */
- Node currentNode();
-
- /**
- * see currentNode
- */
- void setCurrentNode(const Node &_currentNode);
-
- /**
- * Moves to and returns the parent node of the current node. If
- * there is no parent node, or if the current node is the root
- * node from which this TreeWalker was created, retains the
- * current position and returns null.
- *
- * @return The new parent node, or null if the current node has no
- * parent in the TreeWalker's logical view.
- *
- * @exception Exceptions from user code
- * Any exceptions raised by a user-written Filter will propagate
- * through.
- *
- */
- Node parentNode();
-
- /**
- * Moves the \c TreeWalker to the first child of the
- * current node, and returns the new node. If the current node has
- * no children, returns \c null , and retains the
- * current node.
- *
- * @return The new node, or \c null if the current
- * node has no children.
- *
- * @exception Exceptions from user code
- * Any exceptions raised by a user-written Filter will propagate
- * through.
- *
- */
- Node firstChild();
-
- /**
- * Moves the \c TreeWalker to the last child of the
- * current node, and returns the new node. If the current node has
- * no children, returns \c null , and retains the
- * current node.
- *
- * @return The new node, or \c null if the current
- * node has no children.
- *
- * @exception Exceptions from user code
- * Any exceptions raised by a user-written Filter will propagate
- * through.
- *
- */
- Node lastChild();
-
- /**
- * Moves the \c TreeWalker to the previous sibling of
- * the current node, and returns the new node. If the current node
- * has no previous sibling, returns \c null , and
- * retains the current node.
- *
- * @return The new node, or \c null if the current
- * node has no previous sibling.
- *
- * @exception Exceptions from user code
- * Any exceptions raised by a user-written Filter will propagate
- * through.
- *
- */
- Node previousSibling();
-
- /**
- * Moves the \c TreeWalker to the next sibling of the
- * current node, and returns the new node. If the current node has
- * no next sibling, returns \c null , and retains the
- * current node.
- *
- * @return The new node, or \c null if the current
- * node has no next sibling.
- *
- * @exception Exceptions from user code
- * Any exceptions raised by a user-written Filter will propagate
- * through.
- *
- */
- Node nextSibling();
-
- /**
- * Moves the \c TreeWalker to the previous node in
- * document order relative to the current node, and returns the
- * new node. If the current node has no previous node, returns
- * \c null , and retains the current node.
- *
- * @return The new node, or \c null if the current
- * node has no previous node.
- *
- * @exception Exceptions from user code
- * Any exceptions raised by a user-written Filter will propagate
- * through.
- *
- */
- Node previousNode();
-
- /**
- * Moves the \c TreeWalker to the next node in
- * document order relative to the current node, and returns the
- * new node. If the current node has no next node, returns
- * \c null , and retains the current node.
- *
- * @return The new node, or \c null if the current
- * node has no next node.
- *
- * @exception Exceptions from user code
- * Any exceptions raised by a user-written Filter will propagate
- * through.
- *
- */
- Node nextNode();
-
- /**
- * @internal
- * not part of the DOM
- */
- TreeWalkerImpl *handle() const;
- bool isNull() const;
-
-protected:
- TreeWalker(TreeWalkerImpl *i);
- TreeWalkerImpl *impl;
-};
-
-
-// ### not sure if this this class is really needed - both methods are in
-// Document
-
-/**
- * \c DocumentTraversal contains methods that creates
- * Iterators to traverse a node and its children in document order
- * (depth first, pre-order traversal, which is equivalent to the order
- * in which the start tags occur in the text representation of the
- * document).
- *
- *
-class DocumentTraversal // : public Document ?
-{
-public:
- DocumentTraversal();
- DocumentTraversal(const DocumentTraversal &other);
-
- DocumentTraversal & operator = (const DocumentTraversal &other);
-
- ~DocumentTraversal();
-
- **
- *
- *
- * @param root The node which will be iterated together with its
- * children. The iterator is initially positioned just before this
- * node. The whatToShow flags and the filter, if any, are not
- * considered when setting this position.
- *
- * @param whatToShow This flag specifies which node types may
- * appear in the logical view of the tree presented by the
- * Iterator. See the description of Iterator for the set of
- * possible values. These flags can be combined using OR.
- *
- * These flags can be combined using \c OR .
- *
- * @param filter The Filter to be used with this TreeWalker, or
- * null to indicate no filter.
- *
- * @param entityReferenceExpansion The value of this flag
- * determines whether entity reference nodes are expanded.
- *
- * @return The newly created \c NodeIterator .
- *
- *
- NodeIterator createNodeIterator ( const Node &root, long whatToShow,
- const NodeFilter &filter, bool entityReferenceExpansion );
-
- **
- * Create a new TreeWalker over the subtree rooted by the
- * specified node.
- *
- * @param root The node which will serve as the root for the
- * \c TreeWalker . The currentNode of the TreeWalker
- * is set to this node. The whatToShow flags and the NodeFilter
- * are not considered when setting this value; any node type will
- * be accepted as the root. The root must not be null.
- *
- * @param whatToShow This flag specifies which node types may
- * appear in the logical view of the tree presented by the
- * Iterator. See the description of TreeWalker for the set of
- * possible values. These flags can be combined using OR.
- *
- * These flags can be combined using \c OR .
- *
- * @param filter The Filter to be used with this TreeWalker, or
- * null to indicate no filter.
- *
- * @param entityReferenceExpansion The value of this flag
- * determines whether entity reference nodes are expanded.
- *
- * @return The newly created \c TreeWalker .
- *
- * @exception DOMException
- * Raises the exception NOT_SUPPORTED_ERR if the specified root
- * node is null.
- *
- *
- TreeWalker createTreeWalker ( const Node &root, long whatToShow,
- const NodeFilter &filter, bool entityReferenceExpansion );
-};
-*/
-
-} // namespace
-
-#endif