///<summary>
/// Return the Union with the target
///</summary>
public override IPermission Union(IPermission target)
{
if (target == null)
{
return(this.Copy());
}
WebBrowserPermission operand = target as WebBrowserPermission;
if (operand != null)
{
WebBrowserPermissionLevel unionLevel = _webBrowserPermissionLevel > operand._webBrowserPermissionLevel ?
_webBrowserPermissionLevel : operand._webBrowserPermissionLevel;
if (unionLevel == WebBrowserPermissionLevel.None)
{
return(null);
}
else
{
return(new WebBrowserPermission(unionLevel));
}
}
else
{
throw new ArgumentException(SR.Get(SRID.TargetNotWebBrowserPermissionLevel));
}
}
///<summary>
/// Return the intersection with the target
///</summary>
public override IPermission Intersect(IPermission target)
{
if (target == null)
{
return(null);
}
WebBrowserPermission operand = target as WebBrowserPermission;
if (operand != null)
{
WebBrowserPermissionLevel intersectLevel = _webBrowserPermissionLevel < operand._webBrowserPermissionLevel
? _webBrowserPermissionLevel : operand._webBrowserPermissionLevel;
if (intersectLevel == WebBrowserPermissionLevel.None)
{
return(null);
}
else
{
return(new WebBrowserPermission(intersectLevel));
}
}
else
{
throw new ArgumentException(SR.Get(SRID.TargetNotWebBrowserPermissionLevel));
}
}
//
// CodeAccessPermission implementation
//
///<summary>
/// Is this a subsetOf the target ?
///</summary>
public override bool IsSubsetOf(IPermission target)
{
if (target == null)
{
return(_webBrowserPermissionLevel == WebBrowserPermissionLevel.None);
}
WebBrowserPermission operand = target as WebBrowserPermission;
if (operand != null)
{
return(this._webBrowserPermissionLevel <= operand._webBrowserPermissionLevel);
}
else
{
throw new ArgumentException(SR.Get(SRID.TargetNotWebBrowserPermissionLevel));
}
}
///<summary>
/// WebBrowserPermission ctor.
///</summary>
public WebBrowserPermission(WebBrowserPermissionLevel webBrowserPermissionLevel)
{
WebBrowserPermission.VerifyWebBrowserPermissionLevel(webBrowserPermissionLevel);
this._webBrowserPermissionLevel = webBrowserPermissionLevel;
}