public void CloseHtml()
{
this.hostControl.Resize -= new EventHandler(this.HostControl_Resize);
try
{
if (this.propertyNotifySinkCookie != null)
{
this.propertyNotifySinkCookie.Disconnect();
this.propertyNotifySinkCookie = null;
}
if (this.document != null)
{
this.documentView = null;
this.document = null;
this.commandTarget = null;
this.activeObject = null;
if (adviseSinkCookie != 0)
{
this.oleObject.Unadvise(adviseSinkCookie);
this.adviseSinkCookie = 0;
}
this.oleObject.Close(NativeMethods.OLECLOSE_NOSAVE);
this.oleObject.SetClientSite(null);
this.oleObject = null;
}
}
catch (Exception exception)
{
Debug.Fail(exception.ToString());
}
}
public void CreateHtml()
{
Debug.Assert(this.document == null, "Must call CloseHtml before recreating.");
bool created = false;
try
{
// create the trident instance
this.document = (NativeMethods.IHTMLDocument2) new NativeMethods.HTMLDocument();
this.oleObject = (NativeMethods.IOleObject) this.document;
// hand it our NativeMethods.IOleClientSite implementation
this.oleObject.SetClientSite((NativeMethods.IOleClientSite) this);
created = true;
this.propertyNotifySinkCookie = new NativeMethods.ConnectionPointCookie(this.document, this, typeof(NativeMethods.IPropertyNotifySink), false);
this.oleObject.Advise((NativeMethods.IAdviseSink) this, out adviseSinkCookie);
Debug.Assert(adviseSinkCookie != 0);
this.commandTarget = (NativeMethods.IOleCommandTarget) this.document;
}
finally
{
if (created == false)
{
this.document = null;
this.oleObject = null;
this.commandTarget = null;
}
}
}
public virtual void GetOleVerbs(DesignerVerbCollection rval)
{
NativeMethods.IEnumOLEVERB verbEnum = null;
NativeMethods.IOleObject obj = axHost.GetOcx() as NativeMethods.IOleObject;
if (obj == null || NativeMethods.Failed(obj.EnumVerbs(out verbEnum)))
{
return;
}
Debug.Assert(verbEnum != null, "must have return value");
if (verbEnum == null)
{
return;
}
int[] fetched = new int[1];
NativeMethods.tagOLEVERB oleVerb = new NativeMethods.tagOLEVERB();
foundEdit = false;
foundAbout = false;
foundProperties = false;
while (true)
{
fetched[0] = 0;
oleVerb.lpszVerbName = null;
int hr = verbEnum.Next(1, oleVerb, fetched);
if (hr == NativeMethods.S_FALSE)
{
break;
}
else if (NativeMethods.Failed(hr))
{
Debug.Fail("Failed to enumerate through enums: " + hr.ToString());
break;
}
// Believe it or not, some controls, notably the shdocview control, dont' return
// S_FALSE and neither do they set fetched to 1. So, we need to comment out what's
// below to maintain compatibility with Visual Basic.
// if (fetched[0] != 1) {
// Debug.fail("gotta have our 1 verb...");
// break;
// }
if ((oleVerb.grfAttribs & NativeMethods.ActiveX.OLEVERBATTRIB_ONCONTAINERMENU) != 0)
{
foundEdit = foundEdit || oleVerb.lVerb == OLEIVERB_UIACTIVATE;
foundAbout = foundAbout || oleVerb.lVerb == HOSTVERB_ABOUT;
foundProperties = foundProperties || oleVerb.lVerb == HOSTVERB_PROPERTIES;
rval.Add(new HostVerb(new OleVerbData(oleVerb), handler));
}
}
}
/// <include file='doc\MSHTMLHost.uex' path='docs/doc[@for="TridentSite.CloseDocument"]/*' />
/// <devdoc>
/// Closes the mshtml instance by deactivating and releasing it.
/// </devdoc>
protected void CloseDocument()
{
try {
if (tridentDocument != null)
{
if (tridentView != null)
{
tridentView.UIActivate(0);
tridentView.SetInPlaceSite(null);
tridentView = null;
}
tridentDocument = null;
// Change 1:
// After 2 days of investigation... this is all that came out of it (!)...
// Calling IOleObject::Close does not seem to work (you guessed it... in the StyleBuilder only)
// It causes the app to hang around forever; very bizarre
//
// Anyway, from Trident sources, they handle the case where a container does not call
// Close, and releases references directly
//
// I thought maybe I should call DoVerb(OLEIVERB_HIDE) at least.
// It seems to work, but it theres also some code in trident that says HIDE should not be
// called when its running in MsoDocMode. Whats that? For now I am calling it.
//
// tridentOleObject.Close(NativeMethods.OLECLOSE_NOSAVE);
// Change 2:
// Furthermore, it looks like I can't call DoVerb(OLEIVERB_HIDE) for docobjects...
// We get back E_UNEXPECTED. Apparently the right thing to do is to call
// IOleDocumentView::UIActivate(0) and IOleDocumentView::SetInPlaceSite(null)
// both of which I am now doing above
//
// Debug.Assert(parentControl.IsHandleCreated);
// NativeMethods.COMRECT r = new NativeMethods.COMRECT();
// NativeMethods.GetClientRect(parentControl.Handle, r);
//
// tridentOleObject.DoVerb(NativeMethods.OLEIVERB_HIDE, IntPtr.Zero, (NativeMethods.IOleClientSite)this, 0,
// parentControl.Handle, r.ToWin32InteropCOMRECT());
tridentOleObject.SetClientSite(null);
tridentOleObject = null;
}
}
catch (Exception e) {
Debug.Fail(e.ToString());
}
}
/// <include file='doc\MSHTMLHost.uex' path='docs/doc[@for="TridentSite.CloseDocument"]/*' />
/// <devdoc>
/// Closes the mshtml instance by deactivating and releasing it.
/// </devdoc>
protected void CloseDocument()
{
try {
if (tridentDocument != null)
{
tridentView = null;
tridentDocument = null;
tridentOleObject.Close(NativeMethods.OLECLOSE_NOSAVE);
tridentOleObject.SetClientSite(null);
tridentOleObject = null;
}
}
catch (Exception e) {
Debug.Fail(e.ToString());
}
}
///////////////////////////////////////////////////////////////////////////
// Implementation
/// <include file='doc\MSHTMLHost.uex' path='docs/doc[@for="TridentSite.CreateDocument"]/*' />
/// <devdoc>
/// Creates a new instance of mshtml and initializes it as a new document
/// using its IPersistStreamInit.
/// </devdoc>
protected void CreateDocument()
{
try {
// Create an instance of Trident
tridentDocument = (NativeMethods.IHTMLDocument2) new NativeMethods.HTMLDocument();
tridentOleObject = (NativeMethods.IOleObject)tridentDocument;
// Initialize its client site
tridentOleObject.SetClientSite((NativeMethods.IOleClientSite) this);
// Initialize it
NativeMethods.IPersistStreamInit psi = (NativeMethods.IPersistStreamInit)tridentDocument;
psi.InitNew();
}
catch (Exception e) {
Debug.Fail(e.ToString());
throw e;
}
}
/// <include file='doc\MSHTMLHost.uex' path='docs/doc[@for="TridentSite.CreateDocument"]/*' />
/// <devdoc>
/// Creates a new instance of mshtml and initializes it as a new document
/// using its IPersistStreamInit.
/// </devdoc>
protected void CreateDocument()
{
Debug.WriteLineIf(StyleBuilder.StyleBuilderSwitch.TraceVerbose, "In TridentSite::CreateTrident");
try {
// Create an instance of Trident
tridentDocument = (Microsoft.VisualStudio.Interop.Trident.IHTMLDocument2) new HTMLDocument();
tridentOleObject = (NativeMethods.IOleObject)tridentDocument;
// Initialize its client site
Debug.WriteLineIf(StyleBuilder.StyleBuilderSwitch.TraceVerbose, "Setting Trident's IOleClientSite");
tridentOleObject.SetClientSite((NativeMethods.IOleClientSite) this);
// Initialize it
Debug.WriteLineIf(StyleBuilder.StyleBuilderSwitch.TraceVerbose, "Initializing Trident through IPersistStreamInit");
NativeMethods.IPersistStreamInit psi = (NativeMethods.IPersistStreamInit)tridentDocument;
psi.InitNew();
}
catch (Exception e) {
Debug.Fail(e.ToString());
throw e;
}
}
public void CloseHtml()
{
this.hostControl.Resize -= new EventHandler(this.HostControl_Resize);
try
{
if (this.propertyNotifySinkCookie != null)
{
this.propertyNotifySinkCookie.Disconnect();
this.propertyNotifySinkCookie = null;
}
if (this.document != null)
{
this.documentView = null;
this.document = null;
this.commandTarget = null;
this.activeObject = null;
if (adviseSinkCookie != 0)
{
this.oleObject.Unadvise(adviseSinkCookie);
this.adviseSinkCookie = 0;
}
this.oleObject.Close(NativeMethods.OLECLOSE_NOSAVE);
this.oleObject.SetClientSite(null);
this.oleObject = null;
}
}
catch (Exception exception)
{
Debug.Fail(exception.ToString());
}
}
public void CreateHtml()
{
Debug.Assert(this.document == null, "Must call CloseHtml before recreating.");
bool created = false;
try
{
// create the trident instance
this.document = (NativeMethods.IHTMLDocument2) new NativeMethods.HTMLDocument();
this.oleObject = (NativeMethods.IOleObject) this.document;
// hand it our NativeMethods.IOleClientSite implementation
this.oleObject.SetClientSite((NativeMethods.IOleClientSite)this);
created = true;
this.propertyNotifySinkCookie = new NativeMethods.ConnectionPointCookie(this.document, this, typeof(NativeMethods.IPropertyNotifySink), false);
this.oleObject.Advise((NativeMethods.IAdviseSink)this, out adviseSinkCookie);
Debug.Assert(adviseSinkCookie != 0);
this.commandTarget = (NativeMethods.IOleCommandTarget) this.document;
}
finally
{
if (created == false)
{
this.document = null;
this.oleObject = null;
this.commandTarget = null;
}
}
}
///////////////////////////////////////////////////////////////////////////
// Implementation
/// <include file='doc\MSHTMLHost.uex' path='docs/doc[@for="TridentSite.CreateDocument"]/*' />
/// <devdoc>
/// Creates a new instance of mshtml and initializes it as a new document
/// using its IPersistStreamInit.
/// </devdoc>
protected void CreateDocument() {
try {
// Create an instance of Trident
tridentDocument = (NativeMethods.IHTMLDocument2)new NativeMethods.HTMLDocument();
tridentOleObject = (NativeMethods.IOleObject)tridentDocument;
// Initialize its client site
tridentOleObject.SetClientSite((NativeMethods.IOleClientSite)this);
// Initialize it
NativeMethods.IPersistStreamInit psi = (NativeMethods.IPersistStreamInit)tridentDocument;
psi.InitNew();
}
catch (Exception e) {
Debug.Fail(e.ToString());
throw e;
}
}
