private bool GetBuilderGuidString(NativeMethods.IProvidePropertyBuilder target, int dispid, ref string strGuidBldr, int[] bldrType)
{
bool valid = false;
string[] pGuidBldr = new string[1];
if (NativeMethods.Failed(target.MapPropertyToBuilder(dispid, bldrType, pGuidBldr, ref valid)))
{
valid = false;
}
if (valid && (bldrType[0] & _CTLBLDTYPE.CTLBLDTYPE_FINTERNALBUILDER) == 0)
{
valid = false;
Debug.Fail("Property Browser doesn't support standard builders -- NYI");
}
if (!valid)
{
return(false);
}
if (pGuidBldr[0] == null)
{
strGuidBldr = Guid.Empty.ToString();
}
else
{
strGuidBldr = pGuidBldr[0];
}
return(true);
}
private bool GetBuilderGuidString(NativeMethods.IProvidePropertyBuilder target, int dispid, ref string strGuidBldr, int[] bldrType)
{
bool builderAvailable = false;
string[] pbstrGuidBldr = new string[1];
if (NativeMethods.Failed(target.MapPropertyToBuilder(dispid, bldrType, pbstrGuidBldr, ref builderAvailable)))
{
builderAvailable = false;
}
if (builderAvailable && ((bldrType[0] & 2) == 0))
{
builderAvailable = false;
}
if (!builderAvailable)
{
return(false);
}
if (pbstrGuidBldr[0] == null)
{
strGuidBldr = Guid.Empty.ToString();
}
else
{
strGuidBldr = pbstrGuidBldr[0];
}
return(true);
}
/// <summary>
/// Takes the value returned from valueAccess.getValue() and modifies or replaces
/// the value, passing the result into valueAccess.setValue(). This is where
/// an editor can launch a modal dialog or create a drop down editor to allow
/// the user to modify the value. Host assistance in presenting UI to the user
/// can be found through the valueAccess.getService function.
/// </summary>
public override object EditValue(ITypeDescriptorContext context, IServiceProvider provider, object value)
{
IntPtr parentHandle = (IntPtr)UnsafeNativeMethods.GetFocus();
IUIService uiSvc = (IUIService)provider.GetService(typeof(IUIService));
if (uiSvc != null)
{
IWin32Window parent = uiSvc.GetDialogOwnerWindow();
if (parent != null)
{
parentHandle = parent.Handle;
}
}
bool useValue = false;
//VARIANT pValue = null;
object pValue = value;
try
{
object obj = propDesc.TargetObject;
if (obj is ICustomTypeDescriptor)
{
obj = ((ICustomTypeDescriptor)obj).GetPropertyOwner(propDesc);
}
Debug.Assert(obj is NativeMethods.IProvidePropertyBuilder, "object is not IProvidePropertyBuilder");
NativeMethods.IProvidePropertyBuilder propBuilder = (NativeMethods.IProvidePropertyBuilder)obj;
if (NativeMethods.Failed(propBuilder.ExecuteBuilder(propDesc.DISPID,
guidString,
null,
new HandleRef(null, parentHandle),
ref pValue, ref useValue)))
{
useValue = false;
}
}
catch (ExternalException ex)
{
Debug.Fail("Failed to show property frame: " + ex.ErrorCode.ToString(CultureInfo.InvariantCulture));
}
if (useValue && (bldrType & _CTLBLDTYPE.CTLBLDTYPE_FEDITSOBJDIRECTLY) == 0)
{
return(pValue);//pValue.ToVariant();
}
return(value);
}
private void OnGetBaseAttributes(Com2PropertyDescriptor sender, GetAttributesEvent attrEvent)
{
NativeMethods.IProvidePropertyBuilder targetObject = sender.TargetObject as NativeMethods.IProvidePropertyBuilder;
if (targetObject != null)
{
string strGuidBldr = null;
bool flag = this.GetBuilderGuidString(targetObject, sender.DISPID, ref strGuidBldr, new int[1]);
if ((sender.CanShow && flag) && typeof(UnsafeNativeMethods.IDispatch).IsAssignableFrom(sender.PropertyType))
{
attrEvent.Add(BrowsableAttribute.Yes);
}
}
}
private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent)
{
object targetObject = sender.TargetObject;
if (targetObject is NativeMethods.IProvidePropertyBuilder)
{
NativeMethods.IProvidePropertyBuilder target = (NativeMethods.IProvidePropertyBuilder)targetObject;
int[] bldrType = new int[1];
string strGuidBldr = null;
if (this.GetBuilderGuidString(target, sender.DISPID, ref strGuidBldr, bldrType))
{
gveevent.TypeEditor = new Com2PropertyBuilderUITypeEditor(sender, strGuidBldr, bldrType[0], (UITypeEditor)gveevent.TypeEditor);
}
}
}
private void OnGetTypeConverterAndTypeEditor(Com2PropertyDescriptor sender, GetTypeConverterAndTypeEditorEvent gveevent)
{
object target = sender.TargetObject;
if (target is NativeMethods.IProvidePropertyBuilder)
{
NativeMethods.IProvidePropertyBuilder propBuilder = (NativeMethods.IProvidePropertyBuilder)target;
int[] pctlBldType = new int[1];
string guidString = null;
if (GetBuilderGuidString(propBuilder, sender.DISPID, ref guidString, pctlBldType))
{
gveevent.TypeEditor = new Com2PropertyBuilderUITypeEditor(sender, guidString, pctlBldType[0], (UITypeEditor)gveevent.TypeEditor);
}
}
}
/// <summary>
/// Here is where we handle IVsPerPropertyBrowsing.GetLocalizedPropertyInfo and IVsPerPropertyBrowsing. HideProperty
/// such as IPerPropertyBrowsing, IProvidePropertyBuilder, etc.
/// </summary>
private void OnGetBaseAttributes(Com2PropertyDescriptor sender, GetAttributesEvent attrEvent)
{
NativeMethods.IProvidePropertyBuilder target = sender.TargetObject as NativeMethods.IProvidePropertyBuilder;
if (target != null)
{
string s = null;
bool builderValid = GetBuilderGuidString(target, sender.DISPID, ref s, new int[1]);
// we hide IDispatch props by default, we we need to force showing them here
if (sender.CanShow && builderValid)
{
if (typeof(UnsafeNativeMethods.IDispatch).IsAssignableFrom(sender.PropertyType))
{
attrEvent.Add(BrowsableAttribute.Yes);
}
}
}
}
private unsafe bool GetBuilderGuidString(NativeMethods.IProvidePropertyBuilder target, Ole32.DispatchID dispid, ref string strGuidBldr, int[] bldrType)
{
BOOL valid = BOOL.FALSE;
var pGuidBldr = new string[1];
if (!target.MapPropertyToBuilder(dispid, bldrType, pGuidBldr, &valid).Succeeded())
{
return(false);
}
if (valid.IsTrue() && (bldrType[0] & _CTLBLDTYPE.CTLBLDTYPE_FINTERNALBUILDER) == 0)
{
Debug.Fail("Property Browser doesn't support standard builders -- NYI");
return(false);
}
strGuidBldr = pGuidBldr[0] ?? Guid.Empty.ToString();
return(true);
}