domcoreclasses.cpp

linux下开源浏览器WebKit的源码,市面上的很多商用浏览器都是移植自WebKit

        default:
        {
            DOMNode* newNode = new DOMNode(n);
            hr = newNode->QueryInterface(IID_IDOMNode, (void**)&domNode);
        }
        break;
    }

    if (FAILED(hr))
        return 0;

    return domNode;
}

// DOMNodeList - IUnknown -----------------------------------------------------

HRESULT STDMETHODCALLTYPE DOMNodeList::QueryInterface(REFIID riid, void** ppvObject)
{
    *ppvObject = 0;
    if (IsEqualGUID(riid, IID_IDOMNodeList))
        *ppvObject = static_cast<IDOMNodeList*>(this);
    else
        return DOMObject::QueryInterface(riid, ppvObject);

    AddRef();
    return S_OK;
}

// IDOMNodeList ---------------------------------------------------------------

HRESULT STDMETHODCALLTYPE DOMNodeList::item( 
    /* [in] */ UINT index,
    /* [retval][out] */ IDOMNode **result)
{
    *result = 0;
    if (!m_nodeList)
        return E_FAIL;

    WebCore::Node* itemNode = m_nodeList->item(index);
    if (!itemNode)
        return E_FAIL;

    *result = DOMNode::createInstance(itemNode);
    return *result ? S_OK : E_FAIL;
}

HRESULT STDMETHODCALLTYPE DOMNodeList::length( 
        /* [retval][out] */ UINT *result)
{
    *result = 0;
    if (!m_nodeList)
        return E_FAIL;
    *result = m_nodeList->length();
    return S_OK;
}

// DOMNodeList - DOMNodeList --------------------------------------------------

DOMNodeList::DOMNodeList(WebCore::NodeList* l)
: m_nodeList(0)
{
    if (l)
        l->ref();

    m_nodeList = l;
}

DOMNodeList::~DOMNodeList()
{
    if (m_nodeList)
        m_nodeList->deref();
}

IDOMNodeList* DOMNodeList::createInstance(WebCore::NodeList* l)
{
    if (!l)
        return 0;

    IDOMNodeList* domNodeList = 0;
    DOMNodeList* newNodeList = new DOMNodeList(l);
    if (FAILED(newNodeList->QueryInterface(IID_IDOMNodeList, (void**)&domNodeList)))
        return 0;

    return domNodeList;
}

// DOMDocument - IUnknown -----------------------------------------------------

HRESULT STDMETHODCALLTYPE DOMDocument::QueryInterface(REFIID riid, void** ppvObject)
{
    *ppvObject = 0;
    if (IsEqualGUID(riid, IID_IDOMDocument))
        *ppvObject = static_cast<IDOMDocument*>(this);
    else if (IsEqualGUID(riid, IID_IDOMViewCSS))
        *ppvObject = static_cast<IDOMViewCSS*>(this);
    else if (IsEqualGUID(riid, IID_IDOMDocumentEvent))
        *ppvObject = static_cast<IDOMDocumentEvent*>(this);
    else
        return DOMNode::QueryInterface(riid, ppvObject);

    AddRef();
    return S_OK;
}

// DOMDocument ----------------------------------------------------------------

HRESULT STDMETHODCALLTYPE DOMDocument::doctype( 
    /* [retval][out] */ IDOMDocumentType** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::implementation( 
    /* [retval][out] */ IDOMImplementation** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::documentElement( 
    /* [retval][out] */ IDOMElement** result)
{
    *result = DOMElement::createInstance(m_document->documentElement());
    return *result ? S_OK : E_FAIL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::createElement( 
    /* [in] */ BSTR tagName,
    /* [retval][out] */ IDOMElement** result)
{
    if (!m_document)
        return E_FAIL;

    String tagNameString(tagName);
    ExceptionCode ec;
    *result = DOMElement::createInstance(m_document->createElement(tagNameString, ec).get());
    return *result ? S_OK : E_FAIL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::createDocumentFragment( 
    /* [retval][out] */ IDOMDocumentFragment** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::createTextNode( 
    /* [in] */ BSTR /*data*/,
    /* [retval][out] */ IDOMText** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::createComment( 
    /* [in] */ BSTR /*data*/,
    /* [retval][out] */ IDOMComment** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::createCDATASection( 
    /* [in] */ BSTR /*data*/,
    /* [retval][out] */ IDOMCDATASection** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::createProcessingInstruction( 
    /* [in] */ BSTR /*target*/,
    /* [in] */ BSTR /*data*/,
    /* [retval][out] */ IDOMProcessingInstruction** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::createAttribute( 
    /* [in] */ BSTR /*name*/,
    /* [retval][out] */ IDOMAttr** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::createEntityReference( 
    /* [in] */ BSTR /*name*/,
    /* [retval][out] */ IDOMEntityReference** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::getElementsByTagName( 
    /* [in] */ BSTR tagName,
    /* [retval][out] */ IDOMNodeList** result)
{
    if (!m_document)
        return E_FAIL;

    String tagNameString(tagName);
    *result = DOMNodeList::createInstance(m_document->getElementsByTagName(tagNameString).get());
    return *result ? S_OK : E_FAIL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::importNode( 
    /* [in] */ IDOMNode* /*importedNode*/,
    /* [in] */ BOOL /*deep*/,
    /* [retval][out] */ IDOMNode** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::createElementNS( 
    /* [in] */ BSTR /*namespaceURI*/,
    /* [in] */ BSTR /*qualifiedName*/,
    /* [retval][out] */ IDOMElement** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::createAttributeNS( 
    /* [in] */ BSTR /*namespaceURI*/,
    /* [in] */ BSTR /*qualifiedName*/,
    /* [retval][out] */ IDOMAttr** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::getElementsByTagNameNS( 
    /* [in] */ BSTR namespaceURI,
    /* [in] */ BSTR localName,
    /* [retval][out] */ IDOMNodeList** result)
{
    if (!m_document)
        return E_FAIL;

    String namespaceURIString(namespaceURI);
    String localNameString(localName);
    *result = DOMNodeList::createInstance(m_document->getElementsByTagNameNS(namespaceURIString, localNameString).get());
    return *result ? S_OK : E_FAIL;
}

HRESULT STDMETHODCALLTYPE DOMDocument::getElementById( 
    /* [in] */ BSTR elementId,
    /* [retval][out] */ IDOMElement** result)
{
    if (!m_document)
        return E_FAIL;

    String idString(elementId);
    *result = DOMElement::createInstance(m_document->getElementById(idString));
    return *result ? S_OK : E_FAIL;
}

// DOMDocument - IDOMViewCSS --------------------------------------------------

HRESULT STDMETHODCALLTYPE DOMDocument::getComputedStyle( 
    /* [in] */ IDOMElement* elt,
    /* [in] */ BSTR pseudoElt,
    /* [retval][out] */ IDOMCSSStyleDeclaration** result)
{
    if (!elt || !result)
        return E_POINTER;

    COMPtr<DOMElement> domEle;
    HRESULT hr = elt->QueryInterface(IID_DOMElement, (void**)&domEle);
    if (FAILED(hr))
        return hr;
    Element* element = domEle->element();

    WebCore::DOMWindow* dv = m_document->defaultView();
    String pseudoEltString(pseudoElt);
    
    if (!dv)
        return E_FAIL;
    
    *result = DOMCSSStyleDeclaration::createInstance(dv->getComputedStyle(element, pseudoEltString.impl()).get());
    return *result ? S_OK : E_FAIL;
}

// DOMDocument - IDOMDocumentEvent --------------------------------------------

HRESULT STDMETHODCALLTYPE DOMDocument::createEvent( 
    /* [in] */ BSTR eventType,
    /* [retval][out] */ IDOMEvent **result)
{
    String eventTypeString(eventType, SysStringLen(eventType));
    WebCore::ExceptionCode ec = 0;
    *result = DOMEvent::createInstance(m_document->createEvent(eventTypeString, ec));
    return *result ? S_OK : E_FAIL;
}

// DOMDocument - DOMDocument --------------------------------------------------

DOMDocument::DOMDocument(WebCore::Document* d)
: DOMNode(d)
, m_document(d)
{
}

DOMDocument::~DOMDocument()
{
}

IDOMDocument* DOMDocument::createInstance(WebCore::Document* d)
{
    if (!d)
        return 0;

    HRESULT hr;
    IDOMDocument* domDocument = 0;

    if (d->isHTMLDocument()) {
        DOMHTMLDocument* newDocument = new DOMHTMLDocument(d);
        hr = newDocument->QueryInterface(IID_IDOMDocument, (void**)&domDocument);
    } else {
        DOMDocument* newDocument = new DOMDocument(d);
        hr = newDocument->QueryInterface(IID_IDOMDocument, (void**)&domDocument);
    }

    if (FAILED(hr))
        return 0;

    return domDocument;
}

// DOMElement - IUnknown ------------------------------------------------------

HRESULT STDMETHODCALLTYPE DOMElement::QueryInterface(REFIID riid, void** ppvObject)
{
    *ppvObject = 0;
    if (IsEqualGUID(riid, IID_IDOMElement))
        *ppvObject = static_cast<IDOMElement*>(this);
    else if (IsEqualGUID(riid, IID_DOMElement))
        *ppvObject = static_cast<DOMElement*>(this);
    else if (IsEqualGUID(riid, IID_IDOMElementPrivate))
        *ppvObject = static_cast<IDOMElementPrivate*>(this);
    else if (IsEqualGUID(riid, IID_IDOMNodeExtensions))
        *ppvObject = static_cast<IDOMNodeExtensions*>(this);
    else if (IsEqualGUID(riid, IID_IDOMElementCSSInlineStyle))
        *ppvObject = static_cast<IDOMElementCSSInlineStyle*>(this);
    else if (IsEqualGUID(riid, IID_IDOMElementExtensions))
        *ppvObject = static_cast<IDOMElementExtensions*>(this);
    else
        return DOMNode::QueryInterface(riid, ppvObject);

    AddRef();
    return S_OK;
}

// DOMElement - IDOMNodeExtensions---------------------------------------------

HRESULT STDMETHODCALLTYPE DOMElement::boundingBox( 
    /* [retval][out] */ LPRECT rect)
{
    ::SetRectEmpty(rect);

    if (!m_element)
        return E_FAIL;

    WebCore::RenderObject *renderer = m_element->renderer();
    if (renderer) {
        IntRect boundsIntRect = renderer->absoluteBoundingBoxRect();
        rect->left = boundsIntRect.x();
        rect->top = boundsIntRect.y();
        rect->right = boundsIntRect.x() + boundsIntRect.width();
        rect->bottom = boundsIntRect.y() + boundsIntRect.height();
    }

    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::lineBoxRects( 
    /* [size_is][in] */ RECT* /*rects*/,
    /* [in] */ int /*cRects*/)
{
    return E_NOTIMPL;
}

// IDOMElement ----------------------------------------------------------------

HRESULT STDMETHODCALLTYPE DOMElement::tagName( 
        /* [retval][out] */ BSTR* /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::getAttribute( 
        /* [in] */ BSTR name,
        /* [retval][out] */ BSTR* result)
{
    if (!m_element)
        return E_FAIL;
    WebCore::String nameString(name, SysStringLen(name));
    WebCore::String& attrValueString = (WebCore::String&) m_element->getAttribute(nameString);
    *result = SysAllocStringLen(attrValueString.characters(), attrValueString.length());
    if (attrValueString.length() && !*result)
        return E_OUTOFMEMORY;
    return S_OK;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::setAttribute( 
        /* [in] */ BSTR name,
        /* [in] */ BSTR value)
{
    if (!m_element)
        return E_FAIL;

    WebCore::String nameString(name, SysStringLen(name));
    WebCore::String valueString(value, SysStringLen(value));
    WebCore::ExceptionCode ec = 0;
    m_element->setAttribute(nameString, valueString, ec);
    return ec ? E_FAIL : S_OK;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::removeAttribute( 
        /* [in] */ BSTR /*name*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::getAttributeNode( 
        /* [in] */ BSTR /*name*/,
        /* [retval][out] */ IDOMAttr** /*result*/)
{
    ASSERT_NOT_REACHED();