/** \brief Provides the required behaviour of
* <code>IDispatch::Invoke()</code>, by invoking this method on the
* requisite dispinterface.
*
* This method operates by detecting the striping bit on the dispid,
* from which the appropriate dispiniterface is determined. The
* stripe is then removed, and the method invoked.
*
* \remarks Names are matched en bloc: they are either all matched by one
* interface, or all by the other. It is <b>never</b> the case that
* some part are matched by one and the remainder by the other.
*
* \note If no striping is apparent, the invocation is conducted on
* each interface in turn.
*/
STDMETHOD(Invoke)( DISPID dispidMember
, REFIID riid
, LCID lcid
, WORD wFlags
, DISPPARAMS *pdispparams
, VARIANT *pvarResult
, EXCEPINFO *pexcepinfo
, UINT *puArgErr)
{
if(dispidMember >= 0)
{
DISPID dispidFlag = DISPID(0x1) << (8 * sizeof(DISPID) - 2);
dispidFlag >>= 0;
if(dispidMember & dispidFlag)
{
return dispatch_parent_0_type::Invoke(dispidMember & ~dispidFlag, riid, lcid, wFlags, pdispparams, pvarResult, pexcepinfo, puArgErr);
}
dispidFlag >>= 1;
if(dispidMember & dispidFlag)
{
return dispatch_parent_1_type::Invoke(dispidMember & ~dispidFlag, riid, lcid, wFlags, pdispparams, pvarResult, pexcepinfo, puArgErr);
}
}
//----------------------------------------------------------------------------
//
STDMETHODIMP CAnchoAddonService::browserActionNotification()
{
for (BrowserActionCallbackMap::iterator it = m_BrowserActionCallbacks.begin(); it != m_BrowserActionCallbacks.end(); ++it) {
it->second.Invoke0(DISPID(0));
}
return S_OK;
}
/** \brief Provides the required behaviour of
* <code>IDispatch::GetIDsOfNames()</code>, by querying the two
* dispinterfaces, in order, to match the name(s).
*
* This method operates by first determining which, if any, of the
* two parent dispinterfaces can resolve the names. If successful, the
* resultant dispatch Ids are then striped with a bit in their
* most-significant byte(s) to record the index of the dispinterface
* which has thus undertaken to interpret them. This stripe is then
* detected
*
* \remarks Names are matched en bloc: they are either all matched by one
* interface, or all by the other. It is <b>never</b> the case that
* some part are matched by one and the remainder by the other.
*
* \note If a dispid returned from a successful call to one of the
* underlying dispinterfaces' <code>GetIDsOfNames()</code> already
* uses the striping bit, it is left alone. Such methods will be
* successfully called in Invoke(), in its post-stripe processing.
*/
STDMETHOD(GetIDsOfNames)( REFIID riid
, LPOLESTR *rgszNames
, UINT cNames
, LCID lcid
, DISPID *rgdispid)
{
unsigned index = 1;
HRESULT hr = dispatch_parent_0_type::GetIDsOfNames(riid, rgszNames, cNames, lcid, rgdispid);
if( FAILED(hr) &&
DISP_E_UNKNOWNNAME == hr)
{
++index;
hr = dispatch_parent_1_type::GetIDsOfNames(riid, rgszNames, cNames, lcid, rgdispid);
}
// Encode interface info into the dispid
if(SUCCEEDED(hr))
{
DISPID dispidFlag = DISPID(0x1) << (8 * sizeof(DISPID) - 2);
dispidFlag >>= (index - 1);
for(UINT i = 0; i < cNames; ++i)
{
if(rgdispid[i] < 0)
{
// Leave these alone. They'll be processed on a first-come-first-serve
// basis, which assumes that the GetIDsOfNames() and Invoke() of I0 and
// I1 are faithfully inter-related.
}
else
{
ATLSTL_MESSAGE_ASSERT("Dispatch Id is out of range!", 0 == (dispidFlag & rgdispid[i]));
rgdispid[i] |= dispidFlag;
}
}
}
return hr;
}
