C++ IDOMElement::Release方法代码示例

void WebEditorClient::textDidChangeInTextArea(Element* e)
{
    IWebFormDelegate* formDelegate;
    if (SUCCEEDED(m_webView->formDelegate(&formDelegate)) && formDelegate) {
        IDOMElement* domElement = DOMElement::createInstance(e);
        if (domElement) {
            IDOMHTMLTextAreaElement* domTextAreaElement;
            if (SUCCEEDED(domElement->QueryInterface(IID_IDOMHTMLTextAreaElement, (void**)&domTextAreaElement))) {
                formDelegate->textDidChangeInTextArea(domTextAreaElement, kit(e->document()->frame()));
                domTextAreaElement->Release();
            }
            domElement->Release();
        }
        formDelegate->Release();
    }
}

void WebEditorClient::textFieldDidBeginEditing(Element* e)
{
    IWebFormDelegate* formDelegate;
    if (SUCCEEDED(m_webView->formDelegate(&formDelegate)) && formDelegate) {
        IDOMElement* domElement = DOMElement::createInstance(e);
        if (domElement) {
            IDOMHTMLInputElement* domInputElement;
            if (SUCCEEDED(domElement->QueryInterface(IID_IDOMHTMLInputElement, (void**)&domInputElement))) {
                formDelegate->textFieldDidBeginEditing(domInputElement, kit(e->document()->frame()));
                domInputElement->Release();
            }
            domElement->Release();
        }
        formDelegate->Release();
    }
}

void WebEditorClient::textWillBeDeletedInTextField(Element* e)
{
    // We're using the deleteBackward command for all deletion operations since the autofill code treats all deletions the same way.
    IWebFormDelegate* formDelegate;
    if (SUCCEEDED(m_webView->formDelegate(&formDelegate)) && formDelegate) {
        IDOMElement* domElement = DOMElement::createInstance(e);
        if (domElement) {
            IDOMHTMLInputElement* domInputElement;
            if (SUCCEEDED(domElement->QueryInterface(IID_IDOMHTMLInputElement, (void**)&domInputElement))) {
                BOOL result;
                formDelegate->doPlatformCommand(domInputElement, BString(L"DeleteBackward"), kit(e->document()->frame()), &result);
                domInputElement->Release();
            }
            domElement->Release();
        }
        formDelegate->Release();
    }
}

void WebEditorClient::textDidChangeInTextField(Element* e)
{
    if (!UserTypingGestureIndicator::processingUserTypingGesture() || UserTypingGestureIndicator::focusedElementAtGestureStart() != e)
        return;

    IWebFormDelegate* formDelegate;
    if (SUCCEEDED(m_webView->formDelegate(&formDelegate)) && formDelegate) {
        IDOMElement* domElement = DOMElement::createInstance(e);
        if (domElement) {
            IDOMHTMLInputElement* domInputElement;
            if (SUCCEEDED(domElement->QueryInterface(IID_IDOMHTMLInputElement, (void**)&domInputElement))) {
                formDelegate->textDidChangeInTextField(domInputElement, kit(e->document()->frame()));
                domInputElement->Release();
            }
            domElement->Release();
        }
        formDelegate->Release();
    }
}

IDOMNode* DOMNode::createInstance(WebCore::Node* n)
{
    if (!n)
        return 0;

    HRESULT hr = S_OK;
    IDOMNode* domNode = 0;
    WebCore::Node::NodeType nodeType = n->nodeType();

    switch (nodeType) {
        case WebCore::Node::ELEMENT_NODE: 
        {
            IDOMElement* newElement = DOMElement::createInstance(static_cast<WebCore::Element*>(n));
            if (newElement) {
                hr = newElement->QueryInterface(IID_IDOMNode, (void**)&domNode);
                newElement->Release();
            }
        }
        break;
        case WebCore::Node::DOCUMENT_NODE:
        {
            IDOMDocument* newDocument = DOMDocument::createInstance(&n->document());
            if (newDocument) {
                hr = newDocument->QueryInterface(IID_IDOMNode, (void**)&domNode);
                newDocument->Release();
            }
        }
        break;
        default:
        {
            DOMNode* newNode = new DOMNode(n);
            hr = newNode->QueryInterface(IID_IDOMNode, (void**)&domNode);
        }
        break;
    }

    if (FAILED(hr))
        return 0;

    return domNode;
}

bool WebEditorClient::doTextFieldCommandFromEvent(Element* e, KeyboardEvent* ke)
{
    BOOL result = FALSE;
    IWebFormDelegate* formDelegate;
    if (SUCCEEDED(m_webView->formDelegate(&formDelegate)) && formDelegate) {
        IDOMElement* domElement = DOMElement::createInstance(e);
        if (domElement) {
            IDOMHTMLInputElement* domInputElement;
            if (SUCCEEDED(domElement->QueryInterface(IID_IDOMHTMLInputElement, (void**)&domInputElement))) {
                String command = m_webView->interpretKeyEvent(ke);
                // We allow empty commands here because the app code actually depends on this being called for all key presses.
                // We may want to revisit this later because it doesn't really make sense to send an empty command.
                formDelegate->doPlatformCommand(domInputElement, BString(command), kit(e->document()->frame()), &result);
                domInputElement->Release();
            }
            domElement->Release();
        }
        formDelegate->Release();
    }
    return !!result;
}

//.........这里部分代码省略.........

					CArray<IDOMElement*,IDOMElement*> elements;

					if (htmldocument = document)
					{
						CollectElementTags(L"a", elements, documentElement);
					}
					else if (svgdocument = document)
					{
						CollectElementTags(L"a", elements, documentElement);
					}

					for (int i = 0; i < elements.GetSize(); i++)
					{
						IDOMElement* element = elements[i];

						BSTR bhref;

						if (htmldocument)
						{
							element->getAttribute(L"href", &bhref);
						}
						else if (svgdocument)
						{
							// TODO, use getAttributeNS
							element->getAttribute(L"xlink:href", &bhref);
						}

						_bstr_t href = _bstr_t(bhref, false);
						if (href.length())
						{
							char oldcwd[_MAX_PATH];
							_getcwd(oldcwd, _MAX_PATH);

							chdir(pDir->m_pathName);
							char fullpath[_MAX_PATH];
							_fullpath(fullpath, href, _MAX_PATH);

							chdir(oldcwd);

							CSiteFile* pHrefFile = (CSiteFile*)m_pWebSite->m_pRootDir->FindFilePathName(fullpath, 2);

							if (pHrefFile)
							{
								try
								{
									WCHAR sql[256];
									swprintf(sql, L"INSERT INTO links (file_id, out_link_id) VALUES ('%d', %d)", m_dbid, pHrefFile->m_dbid);

									_variant_t	va;
									m_pWebSite->m_siteDataConnection->Execute(sql, &va, ADODB::adCmdText);
								}
								catch (_com_error &e)
								{
									DbError(e);
								}
							}
						}

						element->Release();
					}

					elements.RemoveAll();
				}

			// DOM hierarchy
				{
					try
					{
						WCHAR sql[256];
						swprintf(sql, L"INSERT INTO DOMDocument (file_id) VALUES (%d)", m_dbid);

						_variant_t	va;

						va.Clear();
						m_pWebSite->m_siteDataConnection->Execute(sql, &va, ADODB::adCmdText);

						ADODB::_RecordsetPtr recordset;
						recordset = m_pWebSite->m_siteDataConnection->Execute(L"SELECT MAX(id) AS id FROM DOMDocument", &va, ADODB::adCmdText);

						m_ownerDocument_id = recordset->Fields->Item[_bstr_t(L"id")]->Value.lVal;

						CComQIPtr<IDOMElement> documentElement;
						document->get_documentElement(&documentElement);
						if (documentElement)
						{
							SaveDOMElementToDatabase(documentElement, 0, 0);
						}
					}
					catch (_com_error &e)
					{
						DbError(e);
					}
				}
			}
		}
	}

	m_pWebSite->Fire_OutLinksChanged(m_dbid);
}