实现
下方代码展示了一个XMLSpy IDE插件的简单实现。它向“工具”菜单添加了一个菜单项和一个分隔符（通过XMLSpy）。在OnUpdateCommand()方法中，仅当使用网格视图显示活动文档时才能启用新命令。该命令将搜索具有当前焦点的XML元素，并从元素的文本值中打开任何以“http://”开头的URL。
/////////////////////////////////////////////////////////////////////////////
// CXMLSpyIDEPlugIn
#import "XMLSpy.tlb"
using namespace XMLSpyLib;
HRESULT CXMLSpyIDEPlugIn::OnCommand(long nID, IDispatch* pXMLSpy)
{
USES_CONVERSION;
if(nID == 1) {
IApplicationPtr ipSpyApp;
if(pXMLSpy) {
if(SUCCEEDED(pXMLSpy->QueryInterface(__uuidof(IApplication),(void **)&ipSpyApp))) {
IDocumentPtr ipDocPtr = ipSpyApp->ActiveDocument;
// we assume that grid view is active
if(ipDocPtr) {
IGridViewPtr ipGridPtr = ipDocPtr->GridView;
if(ipGridPtr) {
IXMLDataPtr ipXMLData = ipGridPtr->CurrentFocus;
CString strValue = W2T(ipXMLData->TextValue);
if(!strValue.IsEmpty() && (strValue.Left(7) == _T("http://")))
::ShellExecute(NULL,_T("open"),W2T(ipXMLData->TextValue),NULL,NULL,SW_SHOWNORMAL);
}
}
}
}
}
return S_OK;
}
HRESULT CXMLSpyIDEPlugIn::OnUpdateCommand(long nID, IDispatch* pXMLSpy, SPYUpdateAction* pAction)
{
*pAction = spyDisable;
if(nID == 1) {
IApplicationPtr ipSpyApp;
if(pXMLSpy) {
if(SUCCEEDED(pXMLSpy->QueryInterface(__uuidof(IApplication),(void **)&ipSpyApp))) {
IDocumentPtr ipDocPtr = ipSpyApp->ActiveDocument;
// only enable if grid view is active
if((ipDocPtr != NULL) && (ipDocPtr->CurrentViewMode == spyViewGrid))
*pAction = spyEnable;
}
}
}
return S_OK;
}
HRESULT CXMLSpyIDEPlugIn::OnEvent(long nEventID, SAFEARRAY **arrayParameters, IDispatch* pXMLSpy, VARIANT* pReturnValue)
{
return S_OK;
}
HRESULT CXMLSpyIDEPlugIn::GetUIModifications(BSTR* pModificationsXML)
{
CComBSTR bstrMods = _T(" \
<ConfigurationData> \
<Modifications> ");
// add "Open URL..." to Tools menu
bstrMods.Append (_T(" \
<Modification> \
<Action>Add</Action> \
<UIElement type=\"MenuItem\"> \
<ID>1</ID> \
<Name>Open URL...</Name> \
<Place>0</Place> \
<MenuID>129</MenuID> \
<Parent>:Tools</Parent> \
</UIElement> \
</Modification> "));
// add Seperator to Tools menu
bstrMods.Append (_T(" \
<Modification> \
<Action>Add</Action> \
<UIElement type=\"MenuItem\"> \
<ID>0</ID> \
<Place>1</Place> \
<MenuID>129</MenuID> \
<Parent>:Tools</Parent> \
</UIElement> \
</Modification> "));
// finish modification description
bstrMods.Append (_T(" \
</Modifications> \
</ConfigurationData>"));
return bstrMods.CopyTo(pModificationsXML);
}
HRESULT CXMLSpyIDEPlugIn::GetDescription(BSTR* pDescription)
{
CComBSTR bstrDescr = _T("ATL C++ XMLSpy IDE PlugIn;This PlugIn demonstrates the implementation of a simple ATL DLL as a IDE PlugIn for XMLSpy.");
return bstrDescr.CopyTo(pDescription);
}