/// <include file='doc\ViewFilter.uex' path='docs/doc[@for="ViewFilter.ViewFilter"]/*' />
public ViewFilter(CodeWindowManager mgr, IVsTextView view) {
this.pvaChar = IntPtr.Zero;
this.mgr = mgr;
this.service = mgr.LanguageService;
this.source = mgr.Source;
this.commentSupported = this.service.Preferences.EnableCommenting;
this.textView = view;
NativeMethods.ThrowOnFailure(view.AddCommandFilter(this, out nextTarget));
this.textViewEvents = new NativeMethods.ConnectionPointCookie(view, this, typeof(IVsTextViewEvents));
}
/// <include file='doc\ViewFilter.uex' path='docs/doc[@for="ViewFilter.Close"]/*' />
public virtual void Close() {
Trace.WriteLine("ViewFilter::Close");
if (textViewEvents != null) {
textViewEvents.Dispose();
textViewEvents = null;
}
if (textView == this.service.LastActiveTextView)
this.service.OnActiveViewChanged(null);
textView.RemoveCommandFilter(this); // do not care about HRESULT.
if (textTipData != null) {
textTipData.Close(textView);
textTipData = null;
}
Dispose();
}
private void Disconnect() {
if (this.connection != null) {
this.connection.Dispose();
this.connection = null;
}
}
private void Connect() {
if (this.connection == null && this.site != null) {
IVsTextManager2 textMgr2 = this.site.GetService(typeof(SVsTextManager)) as IVsTextManager2;
if (textMgr2 != null) {
this.connection = new NativeMethods.ConnectionPointCookie(textMgr2, (IVsTextManagerEvents2)this, typeof(IVsTextManagerEvents2));
Marshal.ReleaseComObject(textMgr2);
}
}
}
/// <include file='doc\ViewFilter.uex' path='docs/doc[@for="ViewFilter.RegisterTextViewEventHandlers"]/*' />
public virtual void RegisterTextViewEventHandlers(IVsTextView view)
{
this.textViewEvents = new NativeMethods.ConnectionPointCookie(view, this, typeof(IVsTextViewEvents));
}
/// <include file='doc\ViewFilter.uex' path='docs/doc[@for="ViewFilter.RegisterTextViewEventHandlers"]/*' />
public virtual void RegisterExpansionManagerEventHandlers(IVsExpansionManager emgr)
{
this.expansionEvents = new NativeMethods.ConnectionPointCookie(emgr, this, typeof(IVsExpansionEvents));
}