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tdelibs/khtml/xml/dom2_rangeimpl.cpp

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Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features. BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
15 years ago
/**
* 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:
Revert automated changes Sorry guys, they are just not ready for prime time Work will continue as always git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1212479 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
14 years ago
* count through the children to find where we start (m_startOffset children)
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features. BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
15 years ago
*
* 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
Revert automated changes Sorry guys, they are just not ready for prime time Work will continue as always git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1212479 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
14 years ago
* until we find a sibling, go to next the parent but:
Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features. BUG:215923 git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
15 years ago
* 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;
}