int UnsafeNativeMethods.IOleInPlaceFrame.SetActiveObject(UnsafeNativeMethods.IOleInPlaceActiveObject pActiveObject, string pszObjName)
{
if (pActiveObject == null)
{
if (ctlInEditMode != null)
{
ctlInEditMode.SetEditMode(WebBrowserHelper.AXEditMode.None);
ctlInEditMode = null;
}
return(NativeMethods.S_OK);
}
WebBrowserBase ctl = null;
UnsafeNativeMethods.IOleObject oleObject = pActiveObject as UnsafeNativeMethods.IOleObject;
if (oleObject != null)
{
UnsafeNativeMethods.IOleClientSite clientSite = null;
try {
clientSite = oleObject.GetClientSite();
WebBrowserSiteBase webBrowserSiteBase = clientSite as WebBrowserSiteBase;
if (webBrowserSiteBase != null)
{
ctl = webBrowserSiteBase.GetAXHost();
}
}
catch (COMException t) {
Debug.Fail(t.ToString());
}
if (ctlInEditMode != null)
{
Debug.Fail("control " + ctlInEditMode.ToString() + " did not reset its edit mode to null");
ctlInEditMode.SetSelectionStyle(WebBrowserHelper.SelectionStyle.Selected);
ctlInEditMode.SetEditMode(WebBrowserHelper.AXEditMode.None);
}
if (ctl == null)
{
ctlInEditMode = null;
}
else
{
if (!ctl.IsUserMode)
{
ctlInEditMode = ctl;
ctl.SetEditMode(WebBrowserHelper.AXEditMode.Object);
ctl.AddSelectionHandler();
ctl.SetSelectionStyle(WebBrowserHelper.SelectionStyle.Active);
}
}
}
return(NativeMethods.S_OK);
}
HRESULT Ole32.IOleInPlaceFrame.SetActiveObject(Ole32.IOleInPlaceActiveObject pActiveObject, string pszObjName)
{
if (pActiveObject is null)
{
if (ctlInEditMode is not null)
{
ctlInEditMode.SetEditMode(WebBrowserHelper.AXEditMode.None);
ctlInEditMode = null;
}
return(HRESULT.S_OK);
}
WebBrowserBase ctl = null;
if (pActiveObject is Ole32.IOleObject oleObject)
{
oleObject.GetClientSite(out Ole32.IOleClientSite clientSite);
if (clientSite is WebBrowserSiteBase webBrowserSiteBase)
{
ctl = webBrowserSiteBase.Host;
}
if (ctlInEditMode is not null)
{
Debug.Fail("control " + ctlInEditMode.ToString() + " did not reset its edit mode to null");
ctlInEditMode.SetSelectionStyle(WebBrowserHelper.SelectionStyle.Selected);
ctlInEditMode.SetEditMode(WebBrowserHelper.AXEditMode.None);
}
if (ctl is null)
{
ctlInEditMode = null;
}
else
{
if (!ctl.IsUserMode)
{
ctlInEditMode = ctl;
ctl.SetEditMode(WebBrowserHelper.AXEditMode.Object);
ctl.AddSelectionHandler();
ctl.SetSelectionStyle(WebBrowserHelper.SelectionStyle.Active);
}
}
}
return(HRESULT.S_OK);
}