html_baseimpl.cpp

khtml在gtk上的移植版本

    }
}

bool HTMLFrameElementImpl::rendererIsNeeded(RenderStyle *style)
{
    // Ignore display: none.
    return isURLAllowed(url);
}

RenderObject *HTMLFrameElementImpl::createRenderer(RenderArena *arena, RenderStyle *style)
{
    return new (arena) RenderFrame(this);
}

void HTMLFrameElementImpl::attach()
{
    // we should first look up via id, then via name.
    // this shortterm hack fixes the ugly case. ### rewrite needed for next release
    name = getAttribute(ATTR_NAME);
    if (name.isNull())
        name = getAttribute(ATTR_ID);

    // inherit default settings from parent frameset
    HTMLElementImpl* node = static_cast<HTMLElementImpl*>(parentNode());
    while(node)
    {
        if(node->id() == ID_FRAMESET)
        {
            HTMLFrameSetElementImpl* frameset = static_cast<HTMLFrameSetElementImpl*>(node);
            if(!frameBorderSet)  frameBorder = frameset->frameBorder();
            if(!noresize)  noresize = frameset->noResize();
            break;
        }
        node = static_cast<HTMLElementImpl*>(node->parentNode());
    }

    HTMLElementImpl::attach();

    if (!m_render)
        return;

    KHTMLPart *part = getDocument()->part();

    if (!part)
	return;

    part->incrementFrameCount();
    
    AtomicString relativeURL = url;
    if (relativeURL.isEmpty()) {
        relativeURL = "about:blank";
    }

    // we need a unique name for every frame in the frameset. Hope that's unique enough.
    if (name.isEmpty() || part->frameExists( name.string() ) )
      name = AtomicString(part->requestFrameName());

    // load the frame contents
    part->requestFrame( static_cast<RenderFrame*>(m_render), relativeURL.string(), name.string() );
}

void HTMLFrameElementImpl::detach()
{
    KHTMLPart *part = getDocument()->part();

    if (m_render && part) {
	part->decrementFrameCount();
        KHTMLPart *framePart = part->findFrame( name.string() );
        if (framePart)
            framePart->frameDetached();
    }

    HTMLElementImpl::detach();
}

void HTMLFrameElementImpl::setLocation( const DOMString& str )
{
    if (url == str) return;
    url = AtomicString(str);
    updateForNewURL();
}

bool HTMLFrameElementImpl::isFocusable() const
{
    return m_render!=0;
}

void HTMLFrameElementImpl::setFocus(bool received)
{
    HTMLElementImpl::setFocus(received);
    khtml::RenderFrame *renderFrame = static_cast<khtml::RenderFrame *>(m_render);
    if (!renderFrame || !renderFrame->widget())
	return;
    if (received)
	renderFrame->widget()->setFocus();
    else
	renderFrame->widget()->clearFocus();
}

DocumentImpl* HTMLFrameElementImpl::contentDocument() const
{
    KHTMLPart* p = getDocument()->part();

    if (p) {
        KHTMLPart *part = p->findFrame( name.string() );
        if (part) {
            return part->xmlDocImpl();
        }
    }

    return 0;
}

bool HTMLFrameElementImpl::isURLAttribute(AttributeImpl *attr) const
{
    return attr->id() == ATTR_SRC;
}

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

HTMLFrameSetElementImpl::HTMLFrameSetElementImpl(DocumentPtr *doc)
    : HTMLElementImpl(doc)
{
    // default value for rows and cols...
    m_totalRows = 1;
    m_totalCols = 1;

    m_rows = m_cols = 0;

    frameborder = true;
    frameBorderSet = false;
    m_border = 4;
    noresize = false;

    m_resizing = false;
}

HTMLFrameSetElementImpl::~HTMLFrameSetElementImpl()
{
    if (m_rows)
        delete [] m_rows;
    if (m_cols)
        delete [] m_cols;
}

NodeImpl::Id HTMLFrameSetElementImpl::id() const
{
    return ID_FRAMESET;
}

void HTMLFrameSetElementImpl::parseHTMLAttribute(HTMLAttributeImpl *attr)
{
    switch(attr->id())
    {
    case ATTR_ROWS:
        if (attr->isNull()) break;
        if (m_rows) delete [] m_rows;
        m_rows = attr->value().toLengthArray(m_totalRows);
        setChanged();
    break;
    case ATTR_COLS:
        if (attr->isNull()) break;
        delete [] m_cols;
        m_cols = attr->value().toLengthArray(m_totalCols);
        setChanged();
    break;
    case ATTR_FRAMEBORDER:
        // false or "no" or "0"..
        if ( attr->value().toInt() == 0 ) {
            frameborder = false;
            m_border = 0;
        }
        frameBorderSet = true;
        break;
    case ATTR_NORESIZE:
        noresize = true;
        break;
    case ATTR_BORDER:
        m_border = attr->value().toInt();
        if(!m_border)
            frameborder = false;
        break;
    case ATTR_ONLOAD:
        setHTMLEventListener(EventImpl::LOAD_EVENT,
	    getDocument()->createHTMLEventListener(attr->value().string()));
        break;
    case ATTR_ONUNLOAD:
        setHTMLEventListener(EventImpl::UNLOAD_EVENT,
	    getDocument()->createHTMLEventListener(attr->value().string()));
        break;
    default:
        HTMLElementImpl::parseHTMLAttribute(attr);
    }
}

bool HTMLFrameSetElementImpl::rendererIsNeeded(RenderStyle *style)
{
    // Ignore display: none but do pay attention if a stylesheet has caused us to delay our loading.
    return style->isStyleAvailable();
}

RenderObject *HTMLFrameSetElementImpl::createRenderer(RenderArena *arena, RenderStyle *style)
{
    return new (arena) RenderFrameSet(this);
}

void HTMLFrameSetElementImpl::attach()
{
    // inherit default settings from parent frameset
    HTMLElementImpl* node = static_cast<HTMLElementImpl*>(parentNode());
    while(node)
    {
        if(node->id() == ID_FRAMESET)
        {
            HTMLFrameSetElementImpl* frameset = static_cast<HTMLFrameSetElementImpl*>(node);
            if(!frameBorderSet)  frameborder = frameset->frameBorder();
            if(!noresize)  noresize = frameset->noResize();
            break;
        }
        node = static_cast<HTMLElementImpl*>(node->parentNode());
    }

    HTMLElementImpl::attach();
}

void HTMLFrameSetElementImpl::defaultEventHandler(EventImpl *evt)
{
    if (evt->isMouseEvent() && !noresize && m_render) {
        static_cast<khtml::RenderFrameSet *>(m_render)->userResize(static_cast<MouseEventImpl*>(evt));
        evt->setDefaultHandled();
    }

    HTMLElementImpl::defaultEventHandler(evt);
}

void HTMLFrameSetElementImpl::detach()
{
    if(attached())
        // ### send the event when we actually get removed from the doc instead of here
        dispatchHTMLEvent(EventImpl::UNLOAD_EVENT,false,false);

    HTMLElementImpl::detach();
}

void HTMLFrameSetElementImpl::recalcStyle( StyleChange ch )
{
    if (changed() && m_render) {
        m_render->setNeedsLayout(true);
//         m_render->layout();
        setChanged(false);
    }
    HTMLElementImpl::recalcStyle( ch );
}

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

HTMLHeadElementImpl::HTMLHeadElementImpl(DocumentPtr *doc)
    : HTMLElementImpl(doc)
{
}

HTMLHeadElementImpl::~HTMLHeadElementImpl()
{
}

NodeImpl::Id HTMLHeadElementImpl::id() const
{
    return ID_HEAD;
}

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

HTMLHtmlElementImpl::HTMLHtmlElementImpl(DocumentPtr *doc)
    : HTMLElementImpl(doc)
{
}

HTMLHtmlElementImpl::~HTMLHtmlElementImpl()
{
}

NodeImpl::Id HTMLHtmlElementImpl::id() const
{
    return ID_HTML;
}

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

HTMLIFrameElementImpl::HTMLIFrameElementImpl(DocumentPtr *doc) : HTMLFrameElementImpl(doc)
{
    frameBorder = false;
    marginWidth = -1;
    marginHeight = -1;
    needWidgetUpdate = false;
}

HTMLIFrameElementImpl::~HTMLIFrameElementImpl()
{
}

NodeImpl::Id HTMLIFrameElementImpl::id() const
{
    return ID_IFRAME;
}

bool HTMLIFrameElementImpl::mapToEntry(NodeImpl::Id attr, MappedAttributeEntry& result) const
{
    switch (attr) {
        case ATTR_WIDTH:
        case ATTR_HEIGHT:
            result = eUniversal;
            return false;
        case ATTR_ALIGN:
            result = eReplaced; // Share with <img> since the alignment behavior is the same.
            return false;
        default:
            break;
    }
    
    return HTMLElementImpl::mapToEntry(attr, result);
}

void HTMLIFrameElementImpl::parseHTMLAttribute(HTMLAttributeImpl *attr )
{
  switch (  attr->id() )
  {
    case ATTR_WIDTH:
      addCSSLength( attr, CSS_PROP_WIDTH, attr->value());
      break;
    case ATTR_HEIGHT:
      addCSSLength( attr, CSS_PROP_HEIGHT, attr->value() );
      break;
    case ATTR_ALIGN:
      addHTMLAlignment( attr );
      break;
    default:
      HTMLFrameElementImpl::parseHTMLAttribute( attr );
  }
}

bool HTMLIFrameElementImpl::rendererIsNeeded(RenderStyle *style)
{
    // Don't ignore display: none the way frame does.
    return isURLAllowed(url) && style->display() != NONE;
}

RenderObject *HTMLIFrameElementImpl::createRenderer(RenderArena *arena, RenderStyle *style)
{
    return new (arena) RenderPartObject(this);
}

void HTMLIFrameElementImpl::attach()
{
    HTMLElementImpl::attach();

    KHTMLPart *part = getDocument()->part();
    if (m_render && part) {
        // we need a unique name for every frame in the frameset. Hope that's unique enough.
	part->incrementFrameCount();
        if(name.isEmpty() || part->frameExists( name.string() ))
            name = AtomicString(part->requestFrameName());

        static_cast<RenderPartObject*>(m_render)->updateWidget();
        needWidgetUpdate = false;
    }
}

void HTMLIFrameElementImpl::recalcStyle( StyleChange ch )
{
    if (needWidgetUpdate) {
        if(m_render)  static_cast<RenderPartObject*>(m_render)->updateWidget();
        needWidgetUpdate = false;
    }
    HTMLElementImpl::recalcStyle( ch );
}

void HTMLIFrameElementImpl::openURL()
{
    needWidgetUpdate = true;
    setChanged();
}

bool HTMLIFrameElementImpl::isURLAttribute(AttributeImpl *attr) const
{
    return attr->id() == ATTR_SRC;
}