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

    return E_NOTIMPL;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::setAttributeNode( 
        /* [in] */ IDOMAttr* /*newAttr*/,
        /* [retval][out] */ IDOMAttr** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::removeAttributeNode( 
        /* [in] */ IDOMAttr* /*oldAttr*/,
        /* [retval][out] */ IDOMAttr** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::getElementsByTagName( 
        /* [in] */ BSTR /*name*/,
        /* [retval][out] */ IDOMNodeList** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::getAttributeNS( 
        /* [in] */ BSTR /*namespaceURI*/,
        /* [in] */ BSTR /*localName*/,
        /* [retval][out] */ BSTR* /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::setAttributeNS( 
        /* [in] */ BSTR /*namespaceURI*/,
        /* [in] */ BSTR /*qualifiedName*/,
        /* [in] */ BSTR /*value*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::removeAttributeNS( 
        /* [in] */ BSTR /*namespaceURI*/,
        /* [in] */ BSTR /*localName*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::getAttributeNodeNS( 
        /* [in] */ BSTR /*namespaceURI*/,
        /* [in] */ BSTR /*localName*/,
        /* [retval][out] */ IDOMAttr** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::setAttributeNodeNS( 
        /* [in] */ IDOMAttr* /*newAttr*/,
        /* [retval][out] */ IDOMAttr** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::getElementsByTagNameNS( 
        /* [in] */ BSTR /*namespaceURI*/,
        /* [in] */ BSTR /*localName*/,
        /* [retval][out] */ IDOMNodeList** /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::hasAttribute( 
        /* [in] */ BSTR /*name*/,
        /* [retval][out] */ BOOL* /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}
    
HRESULT STDMETHODCALLTYPE DOMElement::hasAttributeNS( 
        /* [in] */ BSTR /*namespaceURI*/,
        /* [in] */ BSTR /*localName*/,
        /* [retval][out] */ BOOL* /*result*/)
{
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMElement::focus( void)
{
    if (!m_element)
        return E_FAIL;
    m_element->focus();
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::blur( void)
{
    if (!m_element)
        return E_FAIL;
    m_element->blur();
    return S_OK;
}

// IDOMElementPrivate ---------------------------------------------------------

HRESULT DOMElement::coreElement(void **element)
{
    if (!m_element)
        return E_FAIL;
    *element = (void*) m_element;
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::isEqual( 
    /* [in] */ IDOMElement *other,
    /* [retval][out] */ BOOL *result)
{
    *result = FALSE;

    if (!other || !result)
        return E_POINTER;

    IDOMElementPrivate* otherPriv;
    HRESULT hr = other->QueryInterface(IID_IDOMElementPrivate, (void**) &otherPriv);
    if (FAILED(hr))
        return hr;
    
    void* otherCoreEle;
    hr = otherPriv->coreElement(&otherCoreEle);
    otherPriv->Release();
    if (FAILED(hr))
        return hr;

    *result = (otherCoreEle == (void*)m_element) ? TRUE : FALSE;
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::isFocused( 
    /* [retval][out] */ BOOL *result)
{
    if (!m_element)
        return E_FAIL;

    if (m_element->document()->focusedNode() == m_element)
        *result = TRUE;
    else
        *result = FALSE;

    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::innerText(
    /* [retval][out] */ BSTR* result)
{
    if (!result) {
        ASSERT_NOT_REACHED();
        return E_POINTER;
    }

    if (!m_element) {
        ASSERT_NOT_REACHED();
        return E_FAIL;
    }

    *result = BString(m_element->innerText()).release();
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::font(WebFontDescription* webFontDescription)
{
    if (!webFontDescription) {
        ASSERT_NOT_REACHED();
        return E_POINTER;
    }

    ASSERT(m_element);

    WebCore::RenderObject* renderer = m_element->renderer();
    if (!renderer)
        return E_FAIL;

    FontDescription fontDescription = renderer->style()->font().fontDescription();
    AtomicString family = fontDescription.family().family();
    webFontDescription->family = family.characters();
    webFontDescription->familyLength = family.length();
    webFontDescription->size = fontDescription.computedSize();
    webFontDescription->bold = fontDescription.weight() >= WebCore::FontWeight600;
    webFontDescription->italic = fontDescription.italic();

    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::renderedImage(HBITMAP* image)
{
    if (!image) {
        ASSERT_NOT_REACHED();
        return E_POINTER;
    }
    *image = 0;

    ASSERT(m_element);

    Frame* frame = m_element->document()->frame();
    if (!frame)
        return E_FAIL;

    *image = frame->nodeImage(m_element);
    if (!*image)
        return E_FAIL;

    return S_OK;
}

// IDOMElementCSSInlineStyle --------------------------------------------------

HRESULT STDMETHODCALLTYPE DOMElement::style( 
    /* [retval][out] */ IDOMCSSStyleDeclaration** result)
{
    if (!result)
        return E_POINTER;
    if (!m_element)
        return E_FAIL;

    WebCore::CSSStyleDeclaration* style = m_element->style();
    if (!style)
        return E_FAIL;

    *result = DOMCSSStyleDeclaration::createInstance(style);
    return *result ? S_OK : E_FAIL;
}

// IDOMElementExtensions ------------------------------------------------------

HRESULT STDMETHODCALLTYPE DOMElement::offsetLeft( 
    /* [retval][out] */ int* result)
{
    if (!m_element)
        return E_FAIL;

    *result = m_element->offsetLeft();
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::offsetTop( 
    /* [retval][out] */ int* result)
{
    if (!m_element)
        return E_FAIL;

    *result = m_element->offsetTop();
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::offsetWidth( 
    /* [retval][out] */ int* result)
{
    if (!m_element)
        return E_FAIL;

    *result = m_element->offsetWidth();
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::offsetHeight( 
    /* [retval][out] */ int* result)
{
    if (!m_element)
        return E_FAIL;

    *result = m_element->offsetHeight();
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::offsetParent( 
    /* [retval][out] */ IDOMElement** /*result*/)
{
    // FIXME
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMElement::clientWidth( 
    /* [retval][out] */ int* result)
{
    if (!m_element)
        return E_FAIL;

    *result = m_element->clientWidth();
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::clientHeight( 
    /* [retval][out] */ int* result)
{
    if (!m_element)
        return E_FAIL;

    *result = m_element->clientHeight();
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::scrollLeft( 
    /* [retval][out] */ int* result)
{
    if (!m_element)
        return E_FAIL;

    *result = m_element->scrollLeft();
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::setScrollLeft( 
    /* [in] */ int /*newScrollLeft*/)
{
    // FIXME
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMElement::scrollTop( 
    /* [retval][out] */ int* result)
{
    if (!m_element)
        return E_FAIL;

    *result = m_element->scrollTop();
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::setScrollTop( 
    /* [in] */ int /*newScrollTop*/)
{
    // FIXME
    ASSERT_NOT_REACHED();
    return E_NOTIMPL;
}

HRESULT STDMETHODCALLTYPE DOMElement::scrollWidth( 
    /* [retval][out] */ int* result)
{
    if (!m_element)
        return E_FAIL;

    *result = m_element->scrollWidth();
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::scrollHeight( 
    /* [retval][out] */ int* result)
{
    if (!m_element)
        return E_FAIL;

    *result = m_element->scrollHeight();
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::scrollIntoView( 
    /* [in] */ BOOL alignWithTop)
{
    if (!m_element)
        return E_FAIL;

    m_element->scrollIntoView(!!alignWithTop);
    return S_OK;
}

HRESULT STDMETHODCALLTYPE DOMElement::scrollIntoViewIfNeeded( 
    /* [in] */ BOOL centerIfNeeded)
{
    if (!m_element)
        return E_FAIL;

    m_element->scrollIntoViewIfNeeded(!!centerIfNeeded);
    return S_OK;
}

// DOMElement -----------------------------------------------------------------

DOMElement::DOMElement(WebCore::Element* e)
: DOMNode(e)
, m_element(e)
{
}

DOMElement::~DOMElement()
{
}

IDOMElement* DOMElement::createInstance(WebCore::Element* e)
{
    if (!e)
        return 0;

    HRESULT hr;
    IDOMElement* domElement = 0;

    if (e->hasTagName(formTag)) {
        DOMHTMLFormElement* newElement = new DOMHTMLFormElement(e);
        hr = newElement->QueryInterface(IID_IDOMElement, (void**)&domElement);
    } else if (e->hasTagName(selectTag)) {
        DOMHTMLSelectElement* newElement = new DOMHTMLSelectElement(e);
        hr = newElement->QueryInterface(IID_IDOMElement, (void**)&domElement);
    } else if (e->hasTagName(optionTag)) {
        DOMHTMLOptionElement* newElement = new DOMHTMLOptionElement(e);
        hr = newElement->QueryInterface(IID_IDOMElement, (void**)&domElement);
    } else if (e->hasTagName(inputTag)) {
        DOMHTMLInputElement* newElement = new DOMHTMLInputElement(e);
        hr = newElement->QueryInterface(IID_IDOMElement, (void**)&domElement);
    } else if (e->hasTagName(textareaTag)) {
        DOMHTMLTextAreaElement* newElement = new DOMHTMLTextAreaElement(e);
        hr = newElement->QueryInterface(IID_IDOMElement, (void**)&domElement);
    } else if (e->isHTMLElement()) {
        DOMHTMLElement* newElement = new DOMHTMLElement(e);
        hr = newElement->QueryInterface(IID_IDOMElement, (void**)&domElement);
    } else {
        DOMElement* newElement = new DOMElement(e);
        hr = newElement->QueryInterface(IID_IDOMElement, (void**)&domElement);
    }

    if (FAILED(hr))
        return 0;

    return domElement;
}