dom_textimpl.cpp

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}

CommentImpl::CommentImpl(DocumentPtr *doc)
    : CharacterDataImpl(doc)
{
}

CommentImpl::~CommentImpl()
{
}

DOMString CommentImpl::nodeName() const
{
    return "#comment";
}

unsigned short CommentImpl::nodeType() const
{
    return Node::COMMENT_NODE;
}

NodeImpl *CommentImpl::cloneNode(bool /*deep*/)
{
    return getDocument()->createComment( str );
}

NodeImpl::Id CommentImpl::id() const
{
    return ID_COMMENT;
}

// DOM Section 1.1.1
bool CommentImpl::childTypeAllowed( unsigned short /*type*/ )
{
    return false;
}

DOMString CommentImpl::toString() const
{
    // FIXME: substitute entity references as needed!
    return DOMString("<!--") + nodeValue() + "-->";
}

// ---------------------------------------------------------------------------

// ### allow having children in text nodes for entities, comments etc.

TextImpl::TextImpl(DocumentPtr *doc, const DOMString &_text)
    : CharacterDataImpl(doc, _text)
{
}

TextImpl::TextImpl(DocumentPtr *doc)
    : CharacterDataImpl(doc)
{
}

TextImpl::~TextImpl()
{
}

TextImpl *TextImpl::splitText( const unsigned long offset, int &exceptioncode )
{
    exceptioncode = 0;

    // INDEX_SIZE_ERR: Raised if the specified offset is negative or greater than
    // the number of 16-bit units in data.

    // ### we explicitly check for a negative long that has been cast to an unsigned long
    // ... this can happen if JS code passes in -1 - we need to catch this earlier! (in the
    // kjs bindings)
    if (offset > str->l || (long)offset < 0) {
        exceptioncode = DOMException::INDEX_SIZE_ERR;
        return 0;
    }

    // NO_MODIFICATION_ALLOWED_ERR: Raised if this node is readonly.
    if (isReadOnly()) {
        exceptioncode = DOMException::NO_MODIFICATION_ALLOWED_ERR;
        return 0;
    }

    DOMStringImpl *oldStr = str;
    TextImpl *newText = createNew(str->substring(offset,str->l-offset));
    str = str->copy();
    str->ref();
    str->remove(offset,str->l-offset);

    dispatchModifiedEvent(oldStr);
    oldStr->deref();

    if (parentNode())
        parentNode()->insertBefore(newText,nextSibling(), exceptioncode );
    if ( exceptioncode )
        return 0;

    if (m_render)
        (static_cast<RenderText*>(m_render))->setText(str);
    return newText;
}

DOMString TextImpl::nodeName() const
{
  return "#text";
}

unsigned short TextImpl::nodeType() const
{
    return Node::TEXT_NODE;
}

NodeImpl *TextImpl::cloneNode(bool /*deep*/)
{
    return getDocument()->createTextNode(str);
}

bool TextImpl::rendererIsNeeded(RenderStyle *style)
{
    if (!CharacterDataImpl::rendererIsNeeded(style))
        return false;

    bool onlyWS = containsOnlyWhitespace();
    if (!onlyWS)
        return true;

    RenderObject *par = parentNode()->renderer();
    
    if (par->isTable() || par->isTableRow() || par->isTableSection() || par->isTableCol())
        return false;
    
    if (style->whiteSpace() == PRE)
        return true;
    
    RenderObject *prev = previousRenderer();
    if (prev && prev->isBR()) // <span><br/> <br/></span>
        return false;
        
    if (par->isInline()) {
        // <span><div/> <div/></span>
        if (prev && prev->isRenderBlock())
            return false;
    } else {
        if (par->isRenderBlock() && !par->childrenInline() && (!prev || !prev->isInline()))
            return false;
        
        RenderObject *first = par->firstChild();
        while (first && first->isFloatingOrPositioned())
            first = first->nextSibling();
        RenderObject *next = nextRenderer();
        if (!first || next == first)
            // Whitespace at the start of a block just goes away.  Don't even
            // make a render object for this text.
            return false;
    }
    
    return true;
}

RenderObject *TextImpl::createRenderer(RenderArena *arena, RenderStyle *style)
{
    return new (arena) RenderText(this, str);
}

void TextImpl::attach()
{
    createRendererIfNeeded();
    CharacterDataImpl::attach();
}

NodeImpl::Id TextImpl::id() const
{
    return ID_TEXT;
}

void TextImpl::recalcStyle( StyleChange change )
{
//      qDebug("textImpl::recalcStyle");
    if (change != NoChange && parentNode()) {
// 	qDebug("DomText::recalcStyle");
	if(m_render)
	    m_render->setStyle(parentNode()->renderer()->style());
    }
    if ( changed() && m_render && m_render->isText() )
	static_cast<RenderText*>(m_render)->setText(str);
    setChanged( false );
}

// DOM Section 1.1.1
bool TextImpl::childTypeAllowed( unsigned short /*type*/ )
{
    return false;
}

TextImpl *TextImpl::createNew(DOMStringImpl *_str)
{
    return new TextImpl(docPtr(),_str);
}

DOMString TextImpl::toString() const
{
    // FIXME: substitute entity references as needed!
    return nodeValue();
}

#ifndef NDEBUG
void TextImpl::formatForDebugger(char *buffer, unsigned length) const
{
    DOMString result;
    DOMString s;
    
    s = nodeName();
    if (s.length() > 0) {
        result += s;
    }
          
    s = nodeValue();
    if (s.length() > 0) {
        if (result.length() > 0)
            result += "; ";
        result += "value=";
        result += s;
    }
          
    strncpy(buffer, result.string().latin1(), length - 1);
}
#endif

// ---------------------------------------------------------------------------

CDATASectionImpl::CDATASectionImpl(DocumentPtr *impl, const DOMString &_text) : TextImpl(impl,_text)
{
}

CDATASectionImpl::CDATASectionImpl(DocumentPtr *impl) : TextImpl(impl)
{
}

CDATASectionImpl::~CDATASectionImpl()
{
}

DOMString CDATASectionImpl::nodeName() const
{
  return "#cdata-section";
}

unsigned short CDATASectionImpl::nodeType() const
{
    return Node::CDATA_SECTION_NODE;
}

NodeImpl *CDATASectionImpl::cloneNode(bool /*deep*/)
{
    return getDocument()->createCDATASection(str);
}

// DOM Section 1.1.1
bool CDATASectionImpl::childTypeAllowed( unsigned short /*type*/ )
{
    return false;
}

TextImpl *CDATASectionImpl::createNew(DOMStringImpl *_str)
{
    return new CDATASectionImpl(docPtr(),_str);
}

DOMString CDATASectionImpl::toString() const
{
    // FIXME: substitute entity references as needed!
    return DOMString("<![CDATA[") + nodeValue() + "]]>";
}

// ---------------------------------------------------------------------------

EditingTextImpl::EditingTextImpl(DocumentPtr *impl, const DOMString &text)
    : TextImpl(impl, text)
{
}

EditingTextImpl::EditingTextImpl(DocumentPtr *impl)
    : TextImpl(impl)
{
}

EditingTextImpl::~EditingTextImpl()
{
}

bool EditingTextImpl::rendererIsNeeded(RenderStyle *style)
{
    return true;
}