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-rw-r--r--tdehtml/xml/dom2_rangeimpl.cpp1640
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diff --git a/tdehtml/xml/dom2_rangeimpl.cpp b/tdehtml/xml/dom2_rangeimpl.cpp
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+/**
+ * This file is part of the DOM implementation for KDE.
+ *
+ * (C) 1999-2003 Lars Knoll (knoll@kde.org)
+ * (C) 2001-2003 Dirk Mueller (mueller@kde.org)
+ * (C) 2000 Gunnstein Lye (gunnstein@netcom.no)
+ * (C) 2000 Frederik Holljen (frederik.holljen@hig.no)
+ * (C) 2001 Peter Kelly (pmk@post.com)
+ * Copyright (C) 2003 Apple Computer, Inc.
+ *
+ * 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.
+ */
+
+#include "dom/dom_exception.h"
+#include "dom_docimpl.h"
+#include "dom2_rangeimpl.h"
+#include "dom_textimpl.h"
+#include "dom_xmlimpl.h"
+#include "html/html_elementimpl.h"
+#include "misc/htmltags.h"
+
+using namespace DOM;
+
+
+RangeImpl::RangeImpl(DocumentImpl *_ownerDocument)
+{
+ m_ownerDocument = _ownerDocument;
+ m_ownerDocument->ref();
+ m_startContainer = _ownerDocument;
+ m_startContainer->ref();
+ m_endContainer = _ownerDocument;
+ m_endContainer->ref();
+ m_startOffset = 0;
+ m_endOffset = 0;
+ m_detached = false;
+}
+
+RangeImpl::RangeImpl(DocumentImpl *_ownerDocument,
+ NodeImpl *_startContainer, long _startOffset,
+ NodeImpl *_endContainer, long _endOffset)
+{
+ m_ownerDocument = _ownerDocument;
+ m_ownerDocument->ref();
+ m_startContainer = _startContainer;
+ m_startContainer->ref();
+ m_startOffset = _startOffset;
+ m_endContainer = _endContainer;
+ m_endContainer->ref();
+ m_endOffset = _endOffset;
+ m_detached = false;
+}
+
+RangeImpl::~RangeImpl()
+{
+ m_ownerDocument->deref();
+ int exceptioncode = 0;
+ if (!m_detached)
+ detach(exceptioncode);
+}
+
+NodeImpl *RangeImpl::startContainer(int &exceptioncode) const
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return 0;
+ }
+
+ return m_startContainer;
+}
+
+long RangeImpl::startOffset(int &exceptioncode) const
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return 0;
+ }
+
+ return m_startOffset;
+}
+
+NodeImpl *RangeImpl::endContainer(int &exceptioncode) const
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return 0;
+ }
+
+ return m_endContainer;
+}
+
+long RangeImpl::endOffset(int &exceptioncode) const
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return 0;
+ }
+
+ return m_endOffset;
+}
+
+NodeImpl *RangeImpl::commonAncestorContainer(int &exceptioncode)
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return 0;
+ }
+
+ NodeImpl *com = commonAncestorContainer(m_startContainer,m_endContainer);
+ if (!com) // should never happen
+ exceptioncode = DOMException::WRONG_DOCUMENT_ERR;
+ return com;
+}
+
+NodeImpl *RangeImpl::commonAncestorContainer(NodeImpl *containerA, NodeImpl *containerB)
+{
+ NodeImpl *parentStart;
+
+ for (parentStart = containerA; parentStart; parentStart = parentStart->parentNode()) {
+ NodeImpl *parentEnd = containerB;
+ while( parentEnd && (parentStart != parentEnd) )
+ parentEnd = parentEnd->parentNode();
+
+ if(parentStart == parentEnd) break;
+ }
+
+ return parentStart;
+}
+
+bool RangeImpl::collapsed(int &exceptioncode) const
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return 0;
+ }
+
+ return (m_startContainer == m_endContainer && m_startOffset == m_endOffset);
+}
+
+void RangeImpl::setStart( NodeImpl *refNode, long offset, int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return;
+ }
+
+ if (!refNode) {
+ exceptioncode = DOMException::NOT_FOUND_ERR;
+ return;
+ }
+
+ if (refNode->getDocument() != m_ownerDocument) {
+ exceptioncode = DOMException::WRONG_DOCUMENT_ERR;
+ return;
+ }
+
+ checkNodeWOffset( refNode, offset, exceptioncode );
+ if (exceptioncode)
+ return;
+
+ setStartContainer(refNode);
+ m_startOffset = offset;
+
+ // check if different root container
+ NodeImpl *endRootContainer = m_endContainer;
+ while (endRootContainer->parentNode())
+ endRootContainer = endRootContainer->parentNode();
+ NodeImpl *startRootContainer = m_startContainer;
+ while (startRootContainer->parentNode())
+ startRootContainer = startRootContainer->parentNode();
+ if (startRootContainer != endRootContainer)
+ collapse(true,exceptioncode);
+ // check if new start after end
+ else if (compareBoundaryPoints(m_startContainer,m_startOffset,m_endContainer,m_endOffset) > 0)
+ collapse(true,exceptioncode);
+}
+
+void RangeImpl::setEnd( NodeImpl *refNode, long offset, int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return;
+ }
+
+ if (!refNode) {
+ exceptioncode = DOMException::NOT_FOUND_ERR;
+ return;
+ }
+
+ if (refNode->getDocument() != m_ownerDocument) {
+ exceptioncode = DOMException::WRONG_DOCUMENT_ERR;
+ return;
+ }
+
+ checkNodeWOffset( refNode, offset, exceptioncode );
+ if (exceptioncode)
+ return;
+
+ setEndContainer(refNode);
+ m_endOffset = offset;
+
+ // check if different root container
+ NodeImpl *endRootContainer = m_endContainer;
+ while (endRootContainer->parentNode())
+ endRootContainer = endRootContainer->parentNode();
+ NodeImpl *startRootContainer = m_startContainer;
+ while (startRootContainer->parentNode())
+ startRootContainer = startRootContainer->parentNode();
+ if (startRootContainer != endRootContainer)
+ collapse(false,exceptioncode);
+ // check if new end before start
+ if (compareBoundaryPoints(m_startContainer,m_startOffset,m_endContainer,m_endOffset) > 0)
+ collapse(false,exceptioncode);
+}
+
+void RangeImpl::collapse( bool toStart, int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return;
+ }
+
+ if( toStart ) // collapse to start
+ {
+ setEndContainer(m_startContainer);
+ m_endOffset = m_startOffset;
+ }
+ else // collapse to end
+ {
+ setStartContainer(m_endContainer);
+ m_startOffset = m_endOffset;
+ }
+}
+
+short RangeImpl::compareBoundaryPoints( Range::CompareHow how, RangeImpl *sourceRange, int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return 0;
+ }
+
+ if (!sourceRange) {
+ exceptioncode = DOMException::NOT_FOUND_ERR;
+ return 0;
+ }
+
+ NodeImpl *thisCont = commonAncestorContainer(exceptioncode);
+ NodeImpl *sourceCont = sourceRange->commonAncestorContainer(exceptioncode);
+ if (exceptioncode)
+ return 0;
+
+ if (thisCont->getDocument() != sourceCont->getDocument()) {
+ exceptioncode = DOMException::WRONG_DOCUMENT_ERR;
+ return 0;
+ }
+
+ NodeImpl *thisTop = thisCont;
+ NodeImpl *sourceTop = sourceCont;
+ while (thisTop->parentNode())
+ thisTop = thisTop->parentNode();
+ while (sourceTop->parentNode())
+ sourceTop = sourceTop->parentNode();
+ if (thisTop != sourceTop) { // in different DocumentFragments
+ exceptioncode = DOMException::WRONG_DOCUMENT_ERR;
+ return 0;
+ }
+
+ switch(how)
+ {
+ case Range::START_TO_START:
+ return compareBoundaryPoints( m_startContainer, m_startOffset,
+ sourceRange->startContainer(exceptioncode), sourceRange->startOffset(exceptioncode) );
+ break;
+ case Range::START_TO_END:
+ return compareBoundaryPoints( m_startContainer, m_startOffset,
+ sourceRange->endContainer(exceptioncode), sourceRange->endOffset(exceptioncode) );
+ break;
+ case Range::END_TO_END:
+ return compareBoundaryPoints( m_endContainer, m_endOffset,
+ sourceRange->endContainer(exceptioncode), sourceRange->endOffset(exceptioncode) );
+ break;
+ case Range::END_TO_START:
+ return compareBoundaryPoints( m_endContainer, m_endOffset,
+ sourceRange->startContainer(exceptioncode), sourceRange->startOffset(exceptioncode) );
+ break;
+ default:
+ exceptioncode = DOMException::SYNTAX_ERR;
+ return 0;
+ }
+}
+
+short RangeImpl::compareBoundaryPoints( NodeImpl *containerA, long offsetA, NodeImpl *containerB, long offsetB )
+{
+ // see DOM2 traversal & range section 2.5
+
+ // case 1: both points have the same container
+ if( containerA == containerB )
+ {
+ if( offsetA == offsetB ) return 0; // A is equal to B
+ if( offsetA < offsetB ) return -1; // A is before B
+ else return 1; // A is after B
+ }
+
+ // case 2: node C (container B or an ancestor) is a child node of A
+ NodeImpl *c = containerB;
+ while (c && c->parentNode() != containerA)
+ c = c->parentNode();
+ if (c) {
+ int offsetC = 0;
+ NodeImpl* n = containerA->firstChild();
+ while (n != c) {
+ offsetC++;
+ n = n->nextSibling();
+ }
+
+ if( offsetA <= offsetC ) return -1; // A is before B
+ else return 1; // A is after B
+ }
+
+ // case 3: node C (container A or an ancestor) is a child node of B
+ c = containerA;
+ while (c && c->parentNode() != containerB)
+ c = c->parentNode();
+ if (c) {
+ int offsetC = 0;
+ NodeImpl* n = containerB->firstChild();
+ while (n != c) {
+ offsetC++;
+ n = n->nextSibling();
+ }
+
+ if( offsetC < offsetB ) return -1; // A is before B
+ else return 1; // A is after B
+ }
+
+ // case 4: containers A & B are siblings, or children of siblings
+ // ### we need to do a traversal here instead
+ NodeImpl *cmnRoot = commonAncestorContainer(containerA,containerB);
+ if (!cmnRoot) return -1; // Whatever...
+ NodeImpl *childA = containerA;
+ while (childA->parentNode() != cmnRoot)
+ childA = childA->parentNode();
+ NodeImpl *childB = containerB;
+ while (childB->parentNode() != cmnRoot)
+ childB = childB->parentNode();
+
+ NodeImpl *n = cmnRoot->firstChild();
+ int i = 0;
+ int childAOffset = -1;
+ int childBOffset = -1;
+ while (childAOffset < 0 || childBOffset < 0) {
+ if (n == childA)
+ childAOffset = i;
+ if (n == childB)
+ childBOffset = i;
+ n = n->nextSibling();
+ i++;
+ }
+
+ if( childAOffset == childBOffset ) return 0; // A is equal to B
+ if( childAOffset < childBOffset ) return -1; // A is before B
+ else return 1; // A is after B
+}
+
+bool RangeImpl::boundaryPointsValid( )
+{
+ short valid = compareBoundaryPoints( m_startContainer, m_startOffset,
+ m_endContainer, m_endOffset );
+ if( valid == 1 ) return false;
+ else return true;
+
+}
+
+void RangeImpl::deleteContents( int &exceptioncode ) {
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return;
+ }
+
+ checkDeleteExtract(exceptioncode);
+ if (exceptioncode)
+ return;
+
+ processContents(DELETE_CONTENTS,exceptioncode);
+}
+
+DocumentFragmentImpl *RangeImpl::processContents ( ActionType action, int &exceptioncode )
+{
+ // ### when mutation events are implemented, we will have to take into account
+ // situations where the tree is being transformed while we delete - ugh!
+
+ // ### perhaps disable node deletion notification for this range while we do this?
+
+ if (collapsed(exceptioncode))
+ return 0;
+ if (exceptioncode)
+ return 0;
+
+ NodeImpl *cmnRoot = commonAncestorContainer(exceptioncode);
+ if (exceptioncode)
+ return 0;
+
+ // what is the highest node that partially selects the start of the range?
+ NodeImpl *partialStart = 0;
+ if (m_startContainer != cmnRoot) {
+ partialStart = m_startContainer;
+ while (partialStart->parentNode() != cmnRoot)
+ partialStart = partialStart->parentNode();
+ }
+
+ // what is the highest node that partially selects the end of the range?
+ NodeImpl *partialEnd = 0;
+ if (m_endContainer != cmnRoot) {
+ partialEnd = m_endContainer;
+ while (partialEnd->parentNode() != cmnRoot)
+ partialEnd = partialEnd->parentNode();
+ }
+
+ DocumentFragmentImpl *fragment = 0;
+ if (action == EXTRACT_CONTENTS || action == CLONE_CONTENTS)
+ fragment = new DocumentFragmentImpl(m_ownerDocument);
+
+ // Simple case: the start and end containers are the same. We just grab
+ // everything >= start offset and < end offset
+ if (m_startContainer == m_endContainer) {
+ if(m_startContainer->nodeType() == Node::TEXT_NODE ||
+ m_startContainer->nodeType() == Node::CDATA_SECTION_NODE ||
+ m_startContainer->nodeType() == Node::COMMENT_NODE) {
+
+ if (action == EXTRACT_CONTENTS || action == CLONE_CONTENTS) {
+ CharacterDataImpl *c = static_cast<CharacterDataImpl*>(m_startContainer->cloneNode(true));
+ c->deleteData(m_endOffset,static_cast<CharacterDataImpl*>(m_startContainer)->length()-m_endOffset,exceptioncode);
+ c->deleteData(0,m_startOffset,exceptioncode);
+ fragment->appendChild(c,exceptioncode);
+ }
+ if (action == EXTRACT_CONTENTS || action == DELETE_CONTENTS)
+ static_cast<CharacterDataImpl*>(m_startContainer)->deleteData(m_startOffset,m_endOffset-m_startOffset,exceptioncode);
+ }
+ else if (m_startContainer->nodeType() == Node::PROCESSING_INSTRUCTION_NODE) {
+ // ### operate just on data ?
+ }
+ else {
+ NodeImpl *n = m_startContainer->firstChild();
+ unsigned long i;
+ for(i = 0; i < m_startOffset; i++) // skip until m_startOffset
+ n = n->nextSibling();
+ while (n && i < m_endOffset) { // delete until m_endOffset
+ NodeImpl *next = n->nextSibling();
+ if (action == EXTRACT_CONTENTS)
+ fragment->appendChild(n,exceptioncode); // will remove n from its parent
+ else if (action == CLONE_CONTENTS)
+ fragment->appendChild(n->cloneNode(true),exceptioncode);
+ else
+ m_startContainer->removeChild(n,exceptioncode);
+ n = next;
+ i++;
+ }
+ }
+ collapse(true,exceptioncode);
+ return fragment;
+ }
+
+ // Complex case: Start and end containers are different.
+ // There are three possiblities here:
+ // 1. Start container == cmnRoot (End container must be a descendant)
+ // 2. End container == cmnRoot (Start container must be a descendant)
+ // 3. Neither is cmnRoot, they are both descendants
+ //
+ // In case 3, we grab everything after the start (up until a direct child
+ // of cmnRoot) into leftContents, and everything before the end (up until
+ // a direct child of cmnRoot) into rightContents. Then we process all
+ // cmnRoot children between leftContents and rightContents
+ //
+ // In case 1 or 2, we skip either processing of leftContents or rightContents,
+ // in which case the last lot of nodes either goes from the first or last
+ // child of cmnRoot.
+ //
+ // These are deleted, cloned, or extracted (i.e. both) depending on action.
+
+ NodeImpl *leftContents = 0;
+ if (m_startContainer != cmnRoot) {
+ // process the left-hand side of the range, up until the last ancestor of
+ // m_startContainer before cmnRoot
+ if(m_startContainer->nodeType() == Node::TEXT_NODE ||
+ m_startContainer->nodeType() == Node::CDATA_SECTION_NODE ||
+ m_startContainer->nodeType() == Node::COMMENT_NODE) {
+
+ if (action == EXTRACT_CONTENTS || action == CLONE_CONTENTS) {
+ CharacterDataImpl *c = static_cast<CharacterDataImpl*>(m_startContainer->cloneNode(true));
+ c->deleteData(0,m_startOffset,exceptioncode);
+ leftContents = c;
+ }
+ if (action == EXTRACT_CONTENTS || action == DELETE_CONTENTS)
+ static_cast<CharacterDataImpl*>(m_startContainer)->deleteData(
+ m_startOffset,static_cast<CharacterDataImpl*>(m_startContainer)->length()-m_startOffset,exceptioncode);
+ }
+ else if (m_startContainer->nodeType() == Node::PROCESSING_INSTRUCTION_NODE) {
+ // ### operate just on data ?
+ // leftContents = ...
+ }
+ else {
+ if (action == EXTRACT_CONTENTS || action == CLONE_CONTENTS)
+ leftContents = m_startContainer->cloneNode(false);
+ NodeImpl *n = m_startContainer->firstChild();
+ unsigned long i;
+ for(i = 0; i < m_startOffset; i++) // skip until m_startOffset
+ n = n->nextSibling();
+ while (n) { // process until end
+ NodeImpl *next = n->nextSibling();
+ if (action == EXTRACT_CONTENTS)
+ leftContents->appendChild(n,exceptioncode); // will remove n from m_startContainer
+ else if (action == CLONE_CONTENTS)
+ leftContents->appendChild(n->cloneNode(true),exceptioncode);
+ else
+ m_startContainer->removeChild(n,exceptioncode);
+ n = next;
+ }
+ }
+
+ NodeImpl *leftParent = m_startContainer->parentNode();
+ NodeImpl *n = m_startContainer->nextSibling();
+ for (; leftParent != cmnRoot; leftParent = leftParent->parentNode()) {
+ if (action == EXTRACT_CONTENTS || action == CLONE_CONTENTS) {
+ NodeImpl *leftContentsParent = leftParent->cloneNode(false);
+ leftContentsParent->appendChild(leftContents,exceptioncode);
+ leftContents = leftContentsParent;
+ }
+
+ NodeImpl *next;
+ for (; n; n = next ) {
+ next = n->nextSibling();
+ if (action == EXTRACT_CONTENTS)
+ leftContents->appendChild(n,exceptioncode); // will remove n from leftParent
+ else if (action == CLONE_CONTENTS)
+ leftContents->appendChild(n->cloneNode(true),exceptioncode);
+ else
+ leftParent->removeChild(n,exceptioncode);
+ }
+ n = leftParent->nextSibling();
+ }
+ }
+
+ NodeImpl *rightContents = 0;
+ if (m_endContainer != cmnRoot) {
+ // delete the right-hand side of the range, up until the last ancestor of
+ // m_endContainer before cmnRoot
+ if(m_endContainer->nodeType() == Node::TEXT_NODE ||
+ m_endContainer->nodeType() == Node::CDATA_SECTION_NODE ||
+ m_endContainer->nodeType() == Node::COMMENT_NODE) {
+
+ if (action == EXTRACT_CONTENTS || action == CLONE_CONTENTS) {
+ CharacterDataImpl *c = static_cast<CharacterDataImpl*>(m_endContainer->cloneNode(true));
+ c->deleteData(m_endOffset,static_cast<CharacterDataImpl*>(m_endContainer)->length()-m_endOffset,exceptioncode);
+ rightContents = c;
+ }
+ if (action == EXTRACT_CONTENTS || action == DELETE_CONTENTS)
+ static_cast<CharacterDataImpl*>(m_endContainer)->deleteData(0,m_endOffset,exceptioncode);
+ }
+ else if (m_startContainer->nodeType() == Node::PROCESSING_INSTRUCTION_NODE) {
+ // ### operate just on data ?
+ // rightContents = ...
+ }
+ else {
+ if (action == EXTRACT_CONTENTS || action == CLONE_CONTENTS)
+ rightContents = m_endContainer->cloneNode(false);
+ NodeImpl *n = m_endContainer->firstChild();
+ unsigned long i;
+ for(i = 0; i+1 < m_endOffset; i++) // skip to m_endOffset
+ n = n->nextSibling();
+ NodeImpl *prev;
+ for (; n; n = prev ) {
+ prev = n->previousSibling();
+ if (action == EXTRACT_CONTENTS)
+ rightContents->insertBefore(n,rightContents->firstChild(),exceptioncode); // will remove n from its parent
+ else if (action == CLONE_CONTENTS)
+ rightContents->insertBefore(n->cloneNode(true),rightContents->firstChild(),exceptioncode);
+ else
+ m_endContainer->removeChild(n,exceptioncode);
+ }
+ }
+
+ NodeImpl *rightParent = m_endContainer->parentNode();
+ NodeImpl *n = m_endContainer->previousSibling();
+ for (; rightParent != cmnRoot; rightParent = rightParent->parentNode()) {
+ if (action == EXTRACT_CONTENTS || action == CLONE_CONTENTS) {
+ NodeImpl *rightContentsParent = rightParent->cloneNode(false);
+ rightContentsParent->appendChild(rightContents,exceptioncode);
+ rightContents = rightContentsParent;
+ }
+
+ NodeImpl *prev;
+ for (; n; n = prev ) {
+ prev = n->previousSibling();
+ if (action == EXTRACT_CONTENTS)
+ rightContents->insertBefore(n,rightContents->firstChild(),exceptioncode); // will remove n from its parent
+ else if (action == CLONE_CONTENTS)
+ rightContents->insertBefore(n->cloneNode(true),rightContents->firstChild(),exceptioncode);
+ else
+ rightParent->removeChild(n,exceptioncode);
+
+ }
+ n = rightParent->previousSibling();
+ }
+ }
+
+ // delete all children of cmnRoot between the start and end container
+
+ NodeImpl *processStart; // child of cmnRooot
+ if (m_startContainer == cmnRoot) {
+ unsigned long i;
+ processStart = m_startContainer->firstChild();
+ for (i = 0; i < m_startOffset; i++)
+ processStart = processStart->nextSibling();
+ }
+ else {
+ processStart = m_startContainer;
+ while (processStart->parentNode() != cmnRoot)
+ processStart = processStart->parentNode();
+ processStart = processStart->nextSibling();
+ }
+ NodeImpl *processEnd; // child of cmnRooot
+ if (m_endContainer == cmnRoot) {
+ unsigned long i;
+ processEnd = m_endContainer->firstChild();
+ for (i = 0; i < m_endOffset; i++)
+ processEnd = processEnd->nextSibling();
+ }
+ else {
+ processEnd = m_endContainer;
+ while (processEnd->parentNode() != cmnRoot)
+ processEnd = processEnd->parentNode();
+ }
+
+ // Now add leftContents, stuff in between, and rightContents to the fragment
+ // (or just delete the stuff in between)
+
+ if ((action == EXTRACT_CONTENTS || action == CLONE_CONTENTS) && leftContents)
+ fragment->appendChild(leftContents,exceptioncode);
+
+ NodeImpl *next;
+ NodeImpl *n;
+ if (processStart) {
+ for (n = processStart; n && n != processEnd; n = next) {
+ next = n->nextSibling();
+
+ if (action == EXTRACT_CONTENTS)
+ fragment->appendChild(n,exceptioncode); // will remove from cmnRoot
+ else if (action == CLONE_CONTENTS)
+ fragment->appendChild(n->cloneNode(true),exceptioncode);
+ else
+ cmnRoot->removeChild(n,exceptioncode);
+ }
+ }
+
+ if ((action == EXTRACT_CONTENTS || action == CLONE_CONTENTS) && rightContents)
+ fragment->appendChild(rightContents,exceptioncode);
+
+ // collapse to the proper position - see spec section 2.6
+ if (action == EXTRACT_CONTENTS || action == DELETE_CONTENTS) {
+ if (!partialStart && !partialEnd)
+ collapse(true,exceptioncode);
+ else if (partialStart) {
+ setStartContainer(partialStart->parentNode());
+ setEndContainer(partialStart->parentNode());
+ m_startOffset = m_endOffset = partialStart->nodeIndex()+1;
+ }
+ else if (partialEnd) {
+ setStartContainer(partialEnd->parentNode());
+ setEndContainer(partialEnd->parentNode());
+ m_startOffset = m_endOffset = partialEnd->nodeIndex();
+ }
+ }
+ return fragment;
+}
+
+
+DocumentFragmentImpl *RangeImpl::extractContents( int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return 0;
+ }
+
+ checkDeleteExtract(exceptioncode);
+ if (exceptioncode)
+ return 0;
+
+ return processContents(EXTRACT_CONTENTS,exceptioncode);
+}
+
+DocumentFragmentImpl *RangeImpl::cloneContents( int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return 0;
+ }
+
+ return processContents(CLONE_CONTENTS,exceptioncode);
+}
+
+void RangeImpl::insertNode( NodeImpl *newNode, int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return;
+ }
+
+ // NO_MODIFICATION_ALLOWED_ERR: Raised if an ancestor container of either boundary-point of
+ // the Range is read-only.
+ NodeImpl *n = m_startContainer;
+ while (n && !n->isReadOnly())
+ n = n->parentNode();
+ if (n) {
+ exceptioncode = DOMException::NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+
+ n = m_endContainer;
+ while (n && !n->isReadOnly())
+ n = n->parentNode();
+ if (n) {
+ exceptioncode = DOMException::NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+
+ // WRONG_DOCUMENT_ERR: Raised if newParent and the container of the start of the Range were
+ // not created from the same document.
+ if (newNode->getDocument() != m_startContainer->getDocument()) {
+ exceptioncode = DOMException::WRONG_DOCUMENT_ERR;
+ return;
+ }
+
+
+ // HIERARCHY_REQUEST_ERR: Raised if the container of the start of the Range is of a type that
+ // does not allow children of the type of newNode or if newNode is an ancestor of the container.
+
+ // an extra one here - if a text node is going to split, it must have a parent to insert into
+ if (m_startContainer->nodeType() == Node::TEXT_NODE && !m_startContainer->parentNode()) {
+ exceptioncode = DOMException::HIERARCHY_REQUEST_ERR;
+ return;
+ }
+
+ // In the case where the container is a text node, we check against the container's parent, because
+ // text nodes get split up upon insertion.
+ NodeImpl *checkAgainst;
+ if (m_startContainer->nodeType() == Node::TEXT_NODE)
+ checkAgainst = m_startContainer->parentNode();
+ else
+ checkAgainst = m_startContainer;
+
+ if (newNode->nodeType() == Node::DOCUMENT_FRAGMENT_NODE) {
+ // check each child node, not the DocumentFragment itself
+ NodeImpl *c;
+ for (c = newNode->firstChild(); c; c = c->nextSibling()) {
+ if (!checkAgainst->childTypeAllowed(c->nodeType())) {
+ exceptioncode = DOMException::HIERARCHY_REQUEST_ERR;
+ return;
+ }
+ }
+ }
+ else {
+ if (!checkAgainst->childTypeAllowed(newNode->nodeType())) {
+ exceptioncode = DOMException::HIERARCHY_REQUEST_ERR;
+ return;
+ }
+ }
+
+ for (n = m_startContainer; n; n = n->parentNode()) {
+ if (n == newNode) {
+ exceptioncode = DOMException::HIERARCHY_REQUEST_ERR;
+ return;
+ }
+ }
+
+ // INVALID_NODE_TYPE_ERR: Raised if newNode is an Attr, Entity, Notation, or Document node.
+ if( newNode->nodeType() == Node::ATTRIBUTE_NODE ||
+ newNode->nodeType() == Node::ENTITY_NODE ||
+ newNode->nodeType() == Node::NOTATION_NODE ||
+ newNode->nodeType() == Node::DOCUMENT_NODE) {
+ exceptioncode = RangeException::INVALID_NODE_TYPE_ERR + RangeException::_EXCEPTION_OFFSET;
+ return;
+ }
+
+ if( m_startContainer->nodeType() == Node::TEXT_NODE ||
+ m_startContainer->nodeType() == Node::CDATA_SECTION_NODE )
+ {
+ TextImpl *newText = static_cast<TextImpl*>(m_startContainer)->splitText(m_startOffset,exceptioncode);
+ if (exceptioncode)
+ return;
+ m_startContainer->parentNode()->insertBefore( newNode, newText, exceptioncode );
+ }
+ else {
+ m_startContainer->insertBefore( newNode, m_startContainer->childNode( m_startOffset ), exceptioncode );
+ }
+}
+
+DOMString RangeImpl::toString( int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return DOMString();
+ }
+
+ DOMString text = "";
+ NodeImpl *n = m_startContainer;
+
+ /* This function converts a dom range to the plain text string that the user would see in this
+ * portion of rendered html.
+ *
+ * There are several ways ranges can be used.
+ *
+ * The simplest is the start and endContainer is a text node. The start and end offset is the
+ * number of characters into the text to remove/truncate.
+ *
+ * The next case is the start and endContainer is, well, a container, such a P tag or DIV tag.
+ * In this case the start and end offset is the number of children into the container to start
+ * from and end at.
+ *
+ * The other cases are different arrangements of the first two.
+ *
+ * psuedo code:
+ *
+ * if start container is not text:
+ * count through the children to find where we start (m_startOffset children)
+ *
+ * loop from the start position:
+ * if the current node is text, add the text to our variable 'text', truncating/removing if at the end/start.
+ *
+ * if the node has children, step to the first child.
+ * if the node has no children but does have siblings, step to the next sibling
+ * until we find a sibling, go to next the parent but:
+ * make sure this sibling isn't past the end of where we are supposed to go. (position > endOffset and the parent is the endContainer)
+ *
+ */
+
+
+ if( m_startContainer == m_endContainer && m_startOffset >= m_endOffset)
+ return text;
+
+
+ if(n->firstChild()) {
+ n = n->firstChild();
+ int current_offset = m_startOffset;
+ while(current_offset-- && n) {
+ n = n->nextSibling();
+ }
+ }
+
+ while(n) {
+ if(n->nodeType() == DOM::Node::TEXT_NODE ||
+ n->nodeType() == DOM::Node::CDATA_SECTION_NODE) {
+
+ DOMString str;
+ str = static_cast<TextImpl *>(n)->string();
+ if( n == m_endContainer || n == m_startContainer)
+ str = str.copy(); //copy if we are going to modify.
+
+ if (n == m_endContainer)
+ str.truncate(m_endOffset);
+ if (n == m_startContainer)
+ str.remove(0,m_startOffset);
+ text += str;
+ if (n == m_endContainer)
+ break;
+ }
+
+
+ NodeImpl *next = n->firstChild();
+ if(!next)
+ next = n->nextSibling();
+
+ while( !next && n->parentNode() ) {
+ if (n == m_endContainer) return text;
+ n = n->parentNode();
+ if (n == m_endContainer) return text;
+ next = n->nextSibling();
+ }
+
+ if(n->parentNode() == m_endContainer) {
+ if(!next) break;
+ unsigned long current_offset = 0;
+ NodeImpl *it = n;
+ while((it = it->previousSibling())) ++current_offset;
+ if(current_offset >= m_endOffset) {
+ break;
+ }
+ }
+
+ n = next;
+ }
+ return text;
+}
+
+DOMString RangeImpl::toHTML( int &exceptioncode )
+{
+ bool hasHtmlTag = false;
+ bool hasBodyTag = false;
+ //FIXME: What is this section of code below exactly? Do I want it here?
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return DOMString();
+ }
+ DOMString text = "";
+ NodeImpl *n = m_startContainer;
+ int num_tables=0;
+ bool in_li = false; //whether we have an li in the text, without an ol/ul
+ int depth_difference = 0;
+ int lowest_depth_difference = 0;
+
+ if( m_startContainer == m_endContainer && m_startOffset >= m_endOffset)
+ return text;
+
+ while(n) {
+ /* First, we could have an tag <tagname key=value>otherstuff</tagname> */
+ if(n->nodeType() == DOM::Node::ELEMENT_NODE) {
+ int elementId = static_cast<ElementImpl *>(n)->id();
+ if(elementId == ID_TABLE) num_tables++;
+ if(elementId == ID_BODY) hasBodyTag = true;
+ if(elementId == ID_HTML) hasHtmlTag = true;
+ if(elementId == ID_LI) in_li=true;
+ if(num_tables==0 && ( elementId == ID_TD || elementId == ID_TR || elementId == ID_TH || elementId == ID_TBODY || elementId == ID_TFOOT || elementId == ID_THEAD)) num_tables++;
+ if(!( !n->hasChildNodes() && (elementId == ID_H1 || elementId == ID_H2 || elementId == ID_H3 || elementId == ID_H4 || elementId ==ID_H5))) { //Don't add <h1/> etc. Just skip these nodes just to make the output html a bit nicer.
+ text += static_cast<ElementImpl *>(n)->openTagStartToString(true /*safely expand img urls*/); // adds "<tagname key=value"
+ if(n->hasChildNodes()) {
+ depth_difference++;
+ text += ">";
+ } else {
+ text += "/>";
+ }
+ }
+ } else
+ if(n->nodeType() == DOM::Node::TEXT_NODE ||
+ n->nodeType() == DOM::Node::CDATA_SECTION_NODE) {
+ if(n->nodeType() == DOM::Node::CDATA_SECTION_NODE) text += "<![CDATA[ ";
+ long long startOffset = (n == m_startContainer)?(long long)m_startOffset:-1;
+ long long endOffset = (n == m_endContainer)?(long long) m_endOffset:-1;
+ text += static_cast<TextImpl *>(n)->toString(startOffset, endOffset); //Note this should always work since CDataImpl inherits TextImpl
+ if(n->nodeType() == DOM::Node::CDATA_SECTION_NODE) text += " ]]>";
+ if(n == m_endContainer) {
+ break;
+ }
+ }
+ if(n->parentNode() == m_endContainer && !n->nextSibling()) {
+ break;
+ }
+
+ //if (n == m_endContainer) break;
+ NodeImpl *next = n->firstChild();
+ if(next) {
+ if(n == m_startContainer) {
+ //This is the start of our selection, so we have to move to where we have started selecting.
+ //For example, if 'n' is "hello <img src='hello.png'> how are you? <img src='goodbye.png'>"
+ //then this has four children. If our selection started on the image, then we need to start from there.
+ unsigned long current_offset = 0;
+ while(current_offset < m_startOffset && next) {
+ next = next->nextSibling();
+ ++current_offset;
+ }
+ }
+ } else {
+ next = n->nextSibling();
+
+ if(n->parentNode() == m_endContainer) {
+ unsigned long current_offset = 1;
+ NodeImpl *it = n;
+ while((it = it->previousSibling())) ++current_offset;
+
+ if(current_offset >= m_endOffset) {
+ break;
+ }
+ }
+ }
+
+ while( !next && n->parentNode() ) {
+ n = n->parentNode();
+ if(n->nodeType() == DOM::Node::ELEMENT_NODE) {
+ text += "</";
+ text += static_cast<ElementImpl *>(n)->tagName();
+ int elementId = static_cast<ElementImpl *>(n)->id();
+ if(elementId == ID_TABLE) num_tables--;
+ depth_difference--;
+ if(lowest_depth_difference > depth_difference) lowest_depth_difference=depth_difference;
+ if(num_tables==0 && ( elementId == ID_TD || elementId == ID_TR || elementId == ID_TH || elementId == ID_TBODY || elementId == ID_TFOOT || elementId == ID_THEAD)) num_tables--;
+ if(elementId == ID_OL || elementId == ID_UL) in_li=false;
+ text += ">";
+ }
+ next = n->nextSibling();
+ }
+ n = next;
+ }
+
+ //We have the html in the selection. But now we need to properly add the opening and closing tags.
+ //For example say we have: "Hello <b>Mr. John</b> How are you?" and we select "John" or even
+ //"John</b> How" and copy. We want to return "<b>John</b>" and "<b>John</b> How" respectively
+
+ //To do this, we need to go up the tree from the start, and prepend those tags.
+ //Imagine our selection was this:
+ //
+ // hello</b></p><p>there
+ //
+ // The difference in depths between the start and end is -1, and the lowest depth
+ // difference from the starting point is -2
+ //
+ // So from the start of the selection, we want to go down to the lowest_depth_difference
+ // and prepend those tags. (<p><b>)
+ //
+ // From the end of the selection, we want to also go down to the lowest_depth_difference.
+ // We know the depth of the end of the selection - i.e. depth_difference.
+ //
+ //
+ n = m_startContainer;
+ int startdepth = 0; //by definition - we are counting from zero.
+ while((n = n->parentNode()) && startdepth>lowest_depth_difference) {
+ if(n->nodeType() == DOM::Node::ELEMENT_NODE) { //This should always be true.. right?
+ switch (static_cast<ElementImpl *>(n)->id()) {
+ case ID_TABLE:
+ num_tables--;
+ break;
+ case ID_BODY:
+ hasBodyTag = true;
+ break;
+ case ID_HTML:
+ hasHtmlTag = true;
+ break;
+ case ID_LI:
+ in_li = true;
+ break;
+ }
+ text = static_cast<ElementImpl *>(n)->openTagStartToString(true /*expand img urls*/)+">" +text; // prepends "<tagname key=value>"
+ }
+ startdepth--;
+ }
+ n = m_endContainer;
+ while( depth_difference>lowest_depth_difference && (n = n->parentNode())) {
+ if(n->nodeType() == DOM::Node::ELEMENT_NODE) { //This should always be true.. right?
+ switch (static_cast<ElementImpl *>(n)->id()) {
+ case ID_TABLE:
+ num_tables++;
+ break;
+ case ID_OL:
+ case ID_UL:
+ in_li=false;
+ break;
+ }
+ text += "</";
+ text += static_cast<ElementImpl *>(n)->tagName();
+ text += ">";
+ }
+ depth_difference--;
+ }
+
+ // Now our text string is the same depth on both sides, with nothing lower (in other words all the
+ // tags in it match up.) This also means that the end value for n in the first loop is a sibling of the
+ // end value for n in the second loop.
+ //
+ // We now need to go down the tree, and for certain tags, add them in on both ends of the text.
+ // For example, if have: "<b>hello</b>" and we select "ll", then we want to go down the tree and
+ // add "<b>" and "</b>" to it, to produce "<b>ll</b>".
+ //
+ // I just guessed at which tags you'd want to keep (bold, italic etc) and which you wouldn't (tables etc).
+ // It's just wild guessing. feel free to change.
+ //
+ // Note we can carry on with the value of n
+ if(n) {
+ while((n = n->parentNode())) {
+ if(n->nodeType() == DOM::Node::ELEMENT_NODE) { //This should always be true.. right?
+ int elementId = static_cast<ElementImpl *>(n)->id();
+ switch (elementId) {
+ case ID_TABLE:
+ case ID_TD:
+ case ID_TR:
+ case ID_TH:
+ case ID_TBODY:
+ case ID_TFOOT:
+ case ID_THEAD:
+ if(num_tables>0) {
+ if(elementId == ID_TABLE) num_tables--;
+ text = static_cast<ElementImpl *>(n)->openTagStartToString(true /*expand img urls*/)+">" +text;
+ text += "</";
+ text += static_cast<ElementImpl *>(n)->tagName();
+ text += ">";
+
+ }
+ break;
+
+ case ID_LI:
+ if(!in_li) break;
+ text = static_cast<ElementImpl *>(n)->openTagStartToString(true /*expand img urls*/)+">" +text;
+ text += "</";
+ text += static_cast<ElementImpl *>(n)->tagName();
+ text += ">";
+ break;
+
+ case ID_UL:
+ case ID_OL:
+ if(!in_li) break;
+ in_li = false;
+ case ID_B:
+ case ID_I:
+ case ID_U:
+ case ID_FONT:
+ case ID_S:
+ case ID_STRONG:
+ case ID_STRIKE:
+ case ID_DEL:
+ case ID_A:
+ case ID_H1:
+ case ID_H2:
+ case ID_H3:
+ case ID_H4:
+ case ID_H5:
+ //should small, etc be here? so hard to decide. this is such a hack :(
+ //There's probably tons of others you'd want here.
+ text = static_cast<ElementImpl *>(n)->openTagStartToString(true /*expand img urls*/)+">" +text;
+ text += "</";
+ text += static_cast<ElementImpl *>(n)->tagName();
+ text += ">";
+ break;
+ }
+ }
+ }
+ }
+
+
+ if(!hasBodyTag) text = DOMString("<body>") + text + "</body>";
+ else if(!hasHtmlTag) {
+ text = DOMString("<html xmlns=\"http://www.w3.org/1999/xhtml\">\n"
+ "<head>\n"
+ "<meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\" />\n"
+ "<meta name=\"Generator\" content=\"KHTML, the KDE Web Page Viewer\" />\n"
+ "</head>\n") +
+ text +
+ "</html>";
+ }
+ text = DOMString("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" \"DTD/xhtml1-strict.dtd\">\n") + text;
+
+ return text;
+
+}
+
+DocumentFragment RangeImpl::createContextualFragment ( const DOMString &html, int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return DocumentFragment();
+ }
+
+ if (! m_startContainer->isHTMLElement()) {
+ exceptioncode = DOMException::NOT_SUPPORTED_ERR;
+ return DocumentFragment();
+ }
+
+ HTMLElementImpl *e = static_cast<HTMLElementImpl *>(m_startContainer);
+ DocumentFragment fragment = e->createContextualFragment(html);
+ if (fragment.isNull()) {
+ exceptioncode = DOMException::NOT_SUPPORTED_ERR;
+ return DocumentFragment();
+ }
+
+ return fragment;
+}
+
+
+void RangeImpl::detach( int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return;
+ }
+
+ if (m_startContainer)
+ m_startContainer->deref();
+ m_startContainer = 0;
+ if (m_endContainer)
+ m_endContainer->deref();
+ m_endContainer = 0;
+ m_detached = true;
+}
+
+bool RangeImpl::isDetached() const
+{
+ return m_detached;
+}
+
+void RangeImpl::checkNodeWOffset( NodeImpl *n, int offset, int &exceptioncode) const
+{
+ if( offset < 0 ) {
+ exceptioncode = DOMException::INDEX_SIZE_ERR;
+ }
+
+ switch (n->nodeType()) {
+ case Node::ENTITY_NODE:
+ case Node::NOTATION_NODE:
+ case Node::DOCUMENT_TYPE_NODE:
+ exceptioncode = RangeException::INVALID_NODE_TYPE_ERR + RangeException::_EXCEPTION_OFFSET;
+ break;
+ case Node::TEXT_NODE:
+ case Node::COMMENT_NODE:
+ case Node::CDATA_SECTION_NODE:
+ if ( (unsigned long)offset > static_cast<CharacterDataImpl*>(n)->length() )
+ exceptioncode = DOMException::INDEX_SIZE_ERR;
+ break;
+ case Node::PROCESSING_INSTRUCTION_NODE:
+ // ### are we supposed to check with just data or the whole contents?
+ if ( (unsigned long)offset > static_cast<ProcessingInstructionImpl*>(n)->data().length() )
+ exceptioncode = DOMException::INDEX_SIZE_ERR;
+ break;
+ default:
+ if ( (unsigned long)offset > n->childNodeCount() )
+ exceptioncode = DOMException::INDEX_SIZE_ERR;
+ break;
+ }
+}
+
+void RangeImpl::checkNodeBA( NodeImpl *n, int &exceptioncode ) const
+{
+ // INVALID_NODE_TYPE_ERR: Raised if the root container of refNode is not an
+ // Attr, Document or DocumentFragment node or if refNode is a Document,
+ // DocumentFragment, Attr, Entity, or Notation node.
+ NodeImpl *root = n;
+ while (root->parentNode())
+ root = root->parentNode();
+ if (!(root->nodeType() == Node::ATTRIBUTE_NODE ||
+ root->nodeType() == Node::DOCUMENT_NODE ||
+ root->nodeType() == Node::DOCUMENT_FRAGMENT_NODE)) {
+ exceptioncode = RangeException::INVALID_NODE_TYPE_ERR + RangeException::_EXCEPTION_OFFSET;
+ return;
+ }
+
+ if( n->nodeType() == Node::DOCUMENT_NODE ||
+ n->nodeType() == Node::DOCUMENT_FRAGMENT_NODE ||
+ n->nodeType() == Node::ATTRIBUTE_NODE ||
+ n->nodeType() == Node::ENTITY_NODE ||
+ n->nodeType() == Node::NOTATION_NODE )
+ exceptioncode = RangeException::INVALID_NODE_TYPE_ERR + RangeException::_EXCEPTION_OFFSET;
+
+}
+
+RangeImpl *RangeImpl::cloneRange(int &exceptioncode)
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return 0;
+ }
+
+ return new RangeImpl(m_ownerDocument,m_startContainer,m_startOffset,m_endContainer,m_endOffset);
+}
+
+void RangeImpl::setStartAfter( NodeImpl *refNode, int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return;
+ }
+
+ if (!refNode) {
+ exceptioncode = DOMException::NOT_FOUND_ERR;
+ return;
+ }
+
+ if (refNode->getDocument() != m_ownerDocument) {
+ exceptioncode = DOMException::WRONG_DOCUMENT_ERR;
+ return;
+ }
+
+ checkNodeBA( refNode, exceptioncode );
+ if (exceptioncode)
+ return;
+
+ setStart( refNode->parentNode(), refNode->nodeIndex()+1, exceptioncode );
+}
+
+void RangeImpl::setEndBefore( NodeImpl *refNode, int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return;
+ }
+
+ if (!refNode) {
+ exceptioncode = DOMException::NOT_FOUND_ERR;
+ return;
+ }
+
+ if (refNode->getDocument() != m_ownerDocument) {
+ exceptioncode = DOMException::WRONG_DOCUMENT_ERR;
+ return;
+ }
+
+ checkNodeBA( refNode, exceptioncode );
+ if (exceptioncode)
+ return;
+
+ setEnd( refNode->parentNode(), refNode->nodeIndex(), exceptioncode );
+}
+
+void RangeImpl::setEndAfter( NodeImpl *refNode, int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return;
+ }
+
+ if (!refNode) {
+ exceptioncode = DOMException::NOT_FOUND_ERR;
+ return;
+ }
+
+ if (refNode->getDocument() != m_ownerDocument) {
+ exceptioncode = DOMException::WRONG_DOCUMENT_ERR;
+ return;
+ }
+
+ checkNodeBA( refNode, exceptioncode );
+ if (exceptioncode)
+ return;
+
+ setEnd( refNode->parentNode(), refNode->nodeIndex()+1, exceptioncode );
+
+}
+
+void RangeImpl::selectNode( NodeImpl *refNode, int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return;
+ }
+
+ if (!refNode) {
+ exceptioncode = DOMException::NOT_FOUND_ERR;
+ return;
+ }
+
+ // INVALID_NODE_TYPE_ERR: Raised if an ancestor of refNode is an Entity, Notation or
+ // DocumentType node or if refNode is a Document, DocumentFragment, Attr, Entity, or Notation
+ // node.
+ NodeImpl *anc;
+ for (anc = refNode->parentNode(); anc; anc = anc->parentNode()) {
+ if (anc->nodeType() == Node::ENTITY_NODE ||
+ anc->nodeType() == Node::NOTATION_NODE ||
+ anc->nodeType() == Node::DOCUMENT_TYPE_NODE) {
+
+ exceptioncode = RangeException::INVALID_NODE_TYPE_ERR + RangeException::_EXCEPTION_OFFSET;
+ return;
+ }
+ }
+
+ if (refNode->nodeType() == Node::DOCUMENT_NODE ||
+ refNode->nodeType() == Node::DOCUMENT_FRAGMENT_NODE ||
+ refNode->nodeType() == Node::ATTRIBUTE_NODE ||
+ refNode->nodeType() == Node::ENTITY_NODE ||
+ refNode->nodeType() == Node::NOTATION_NODE) {
+
+ exceptioncode = RangeException::INVALID_NODE_TYPE_ERR + RangeException::_EXCEPTION_OFFSET;
+ return;
+ }
+
+ setStartBefore( refNode, exceptioncode );
+ if (exceptioncode)
+ return;
+ setEndAfter( refNode, exceptioncode );
+}
+
+void RangeImpl::selectNodeContents( NodeImpl *refNode, int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return;
+ }
+
+ if (!refNode) {
+ exceptioncode = DOMException::NOT_FOUND_ERR;
+ return;
+ }
+
+ // INVALID_NODE_TYPE_ERR: Raised if refNode or an ancestor of refNode is an Entity, Notation
+ // or DocumentType node.
+ NodeImpl *n;
+ for (n = refNode; n; n = n->parentNode()) {
+ if (n->nodeType() == Node::ENTITY_NODE ||
+ n->nodeType() == Node::NOTATION_NODE ||
+ n->nodeType() == Node::DOCUMENT_TYPE_NODE) {
+
+ exceptioncode = RangeException::INVALID_NODE_TYPE_ERR + RangeException::_EXCEPTION_OFFSET;
+ return;
+ }
+ }
+
+ setStartContainer(refNode);
+ m_startOffset = 0;
+ setEndContainer(refNode);
+ m_endOffset = refNode->childNodeCount();
+}
+
+void RangeImpl::surroundContents( NodeImpl *newParent, int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return;
+ }
+
+ if( !newParent ) {
+ exceptioncode = DOMException::NOT_FOUND_ERR;
+ return;
+ }
+
+ // INVALID_NODE_TYPE_ERR: Raised if node is an Attr, Entity, DocumentType, Notation,
+ // Document, or DocumentFragment node.
+ if( newParent->nodeType() == Node::ATTRIBUTE_NODE ||
+ newParent->nodeType() == Node::ENTITY_NODE ||
+ newParent->nodeType() == Node::NOTATION_NODE ||
+ newParent->nodeType() == Node::DOCUMENT_TYPE_NODE ||
+ newParent->nodeType() == Node::DOCUMENT_NODE ||
+ newParent->nodeType() == Node::DOCUMENT_FRAGMENT_NODE) {
+ exceptioncode = RangeException::INVALID_NODE_TYPE_ERR + RangeException::_EXCEPTION_OFFSET;
+ return;
+ }
+
+ // NO_MODIFICATION_ALLOWED_ERR: Raised if an ancestor container of either boundary-point of
+ // the Range is read-only.
+ if (readOnly()) {
+ exceptioncode = DOMException::NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+
+ NodeImpl *n = m_startContainer;
+ while (n && !n->isReadOnly())
+ n = n->parentNode();
+ if (n) {
+ exceptioncode = DOMException::NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+
+ n = m_endContainer;
+ while (n && !n->isReadOnly())
+ n = n->parentNode();
+ if (n) {
+ exceptioncode = DOMException::NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+
+ // WRONG_DOCUMENT_ERR: Raised if newParent and the container of the start of the Range were
+ // not created from the same document.
+ if (newParent->getDocument() != m_startContainer->getDocument()) {
+ exceptioncode = DOMException::WRONG_DOCUMENT_ERR;
+ return;
+ }
+
+ // HIERARCHY_REQUEST_ERR: Raised if the container of the start of the Range is of a type that
+ // does not allow children of the type of newParent or if newParent is an ancestor of the container
+ // or if node would end up with a child node of a type not allowed by the type of node.
+ if (!m_startContainer->childTypeAllowed(newParent->nodeType())) {
+ exceptioncode = DOMException::HIERARCHY_REQUEST_ERR;
+ return;
+ }
+
+ for (n = m_startContainer; n; n = n->parentNode()) {
+ if (n == newParent) {
+ exceptioncode = DOMException::HIERARCHY_REQUEST_ERR;
+ return;
+ }
+ }
+
+ // ### check if node would end up with a child node of a type not allowed by the type of node
+
+ // BAD_BOUNDARYPOINTS_ERR: Raised if the Range partially selects a non-text node.
+ if (m_startContainer->nodeType() != Node::TEXT_NODE &&
+ m_startContainer->nodeType() != Node::COMMENT_NODE &&
+ m_startContainer->nodeType() != Node::CDATA_SECTION_NODE &&
+ m_startContainer->nodeType() != Node::PROCESSING_INSTRUCTION_NODE) {
+
+ if (m_startOffset > 0 && m_startOffset < m_startContainer->childNodeCount()) {
+ exceptioncode = RangeException::BAD_BOUNDARYPOINTS_ERR + RangeException::_EXCEPTION_OFFSET;
+ return;
+ }
+ }
+
+ if (m_endContainer->nodeType() != Node::TEXT_NODE &&
+ m_endContainer->nodeType() != Node::COMMENT_NODE &&
+ m_endContainer->nodeType() != Node::CDATA_SECTION_NODE &&
+ m_endContainer->nodeType() != Node::PROCESSING_INSTRUCTION_NODE) {
+
+ if (m_endOffset > 0 && m_endOffset < m_endContainer->childNodeCount()) {
+ exceptioncode = RangeException::BAD_BOUNDARYPOINTS_ERR + RangeException::_EXCEPTION_OFFSET;
+ return;
+ }
+ }
+
+ while (newParent->firstChild()) {
+ newParent->removeChild(newParent->firstChild(),exceptioncode);
+ if (exceptioncode)
+ return;
+ }
+ DocumentFragmentImpl *fragment = extractContents(exceptioncode);
+ if (exceptioncode)
+ return;
+ insertNode( newParent, exceptioncode );
+ if (exceptioncode)
+ return;
+ newParent->appendChild( fragment, exceptioncode );
+ if (exceptioncode)
+ return;
+ selectNode( newParent, exceptioncode );
+}
+
+void RangeImpl::setStartBefore( NodeImpl *refNode, int &exceptioncode )
+{
+ if (m_detached) {
+ exceptioncode = DOMException::INVALID_STATE_ERR;
+ return;
+ }
+
+ if (!refNode) {
+ exceptioncode = DOMException::NOT_FOUND_ERR;
+ return;
+ }
+
+ if (refNode->getDocument() != m_ownerDocument) {
+ exceptioncode = DOMException::WRONG_DOCUMENT_ERR;
+ return;
+ }
+
+ checkNodeBA( refNode, exceptioncode );
+ if (exceptioncode)
+ return;
+
+ setStart( refNode->parentNode(), refNode->nodeIndex(), exceptioncode );
+}
+
+void RangeImpl::setStartContainer(NodeImpl *_startContainer)
+{
+ if (m_startContainer == _startContainer)
+ return;
+
+ if (m_startContainer)
+ m_startContainer->deref();
+ m_startContainer = _startContainer;
+ if (m_startContainer)
+ m_startContainer->ref();
+}
+
+void RangeImpl::setEndContainer(NodeImpl *_endContainer)
+{
+ if (m_endContainer == _endContainer)
+ return;
+
+ if (m_endContainer)
+ m_endContainer->deref();
+ m_endContainer = _endContainer;
+ if (m_endContainer)
+ m_endContainer->ref();
+}
+
+void RangeImpl::checkDeleteExtract(int &exceptioncode) {
+
+ NodeImpl *start;
+ if (m_startContainer->nodeType() != Node::TEXT_NODE &&
+ m_startContainer->nodeType() != Node::CDATA_SECTION_NODE &&
+ m_startContainer->nodeType() != Node::COMMENT_NODE &&
+ m_startContainer->nodeType() != Node::PROCESSING_INSTRUCTION_NODE) {
+
+ start = m_startContainer->childNode(m_startOffset);
+ if (!start) {
+ if (m_startContainer->lastChild())
+ start = m_startContainer->lastChild()->traverseNextNode();
+ else
+ start = m_startContainer->traverseNextNode();
+ }
+ }
+ else
+ start = m_startContainer;
+
+ NodeImpl *end;
+ if (m_endContainer->nodeType() != Node::TEXT_NODE &&
+ m_endContainer->nodeType() != Node::CDATA_SECTION_NODE &&
+ m_endContainer->nodeType() != Node::COMMENT_NODE &&
+ m_endContainer->nodeType() != Node::PROCESSING_INSTRUCTION_NODE) {
+
+ end = m_endContainer->childNode(m_endOffset);
+ if (!end) {
+ if (m_endContainer->lastChild())
+ end = m_endContainer->lastChild()->traverseNextNode();
+ else
+ end = m_endContainer->traverseNextNode();
+ }
+ }
+ else
+ end = m_endContainer;
+
+ NodeImpl *n;
+ for (n = start; n != end; n = n->traverseNextNode()) {
+ if (n->isReadOnly()) {
+ exceptioncode = DOMException::NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+ if (n->nodeType() == Node::DOCUMENT_TYPE_NODE) { // ### is this for only directly under the DF, or anywhere?
+ exceptioncode = DOMException::HIERARCHY_REQUEST_ERR;
+ return;
+ }
+ }
+
+ if (containedByReadOnly()) {
+ exceptioncode = DOMException::NO_MODIFICATION_ALLOWED_ERR;
+ return;
+ }
+}
+
+
+bool RangeImpl::containedByReadOnly() {
+ NodeImpl *n;
+ for (n = m_startContainer; n; n = n->parentNode()) {
+ if (n->isReadOnly())
+ return true;
+ }
+ for (n = m_endContainer; n; n = n->parentNode()) {
+ if (n->isReadOnly())
+ return true;
+ }
+ return false;
+}
+
+
+
+
+
+
+
+
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-05 01:12:28 +0000