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HtmlEventProxy.cs
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/
HtmlEventProxy.cs
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using System;
using System.Reflection;
using System.Globalization;
using IfacesEnumsStructsClasses;
namespace TestRecorder
{
public class HtmlEventProxy : IDisposable,IReflect
{
// Fields
private readonly EventHandler _eventHandler;
private readonly object _sender;
private readonly IReflect _typeIReflectImplementation;
private IHTMLElement2 _htmlElement;
private readonly string _eventName;
// private CTOR
private HtmlEventProxy(string eventName, IHTMLElement2 htmlElement, EventHandler eventHandler)
{
_eventName = eventName;
_htmlElement = htmlElement;
_sender = this;
_eventHandler = eventHandler;
Type type = typeof(HtmlEventProxy);
_typeIReflectImplementation = type;
}
public static HtmlEventProxy Create(string eventName,object htmlElement, EventHandler eventHandler)
{
var elem = (IHTMLElement2)htmlElement;
var newProxy = new HtmlEventProxy(eventName,elem, eventHandler);
elem.attachEvent(eventName, newProxy);
return newProxy;
}
/// <summary>
/// detach only once (thread safe)
/// </summary>
public void Detach()
{
lock (this)
{
if (_htmlElement != null)
{
var elem = _htmlElement;
elem.detachEvent(_eventName, this);
_htmlElement = null;
}
}
}
/// <summary>
/// HtmlElemet property
/// </summary>
public IHTMLElement2 HtmlElement
{
get
{
return _htmlElement;
}
}
#region IReflect
FieldInfo IReflect.GetField(string name, BindingFlags bindingAttr)
{
return _typeIReflectImplementation.GetField(name, bindingAttr);
}
FieldInfo[] IReflect.GetFields(BindingFlags bindingAttr)
{
return _typeIReflectImplementation.GetFields(bindingAttr);
}
MemberInfo[] IReflect.GetMember(string name, BindingFlags bindingAttr)
{
return _typeIReflectImplementation.GetMember(name, bindingAttr);
}
MemberInfo[] IReflect.GetMembers(BindingFlags bindingAttr)
{
return _typeIReflectImplementation.GetMembers(bindingAttr);
}
MethodInfo IReflect.GetMethod(string name, BindingFlags bindingAttr)
{
return _typeIReflectImplementation.GetMethod(name, bindingAttr);
}
MethodInfo IReflect.GetMethod(string name, BindingFlags bindingAttr, Binder binder, Type[] types, ParameterModifier[] modifiers)
{
return _typeIReflectImplementation.GetMethod(name, bindingAttr, binder, types, modifiers);
}
MethodInfo[] IReflect.GetMethods(BindingFlags bindingAttr)
{
return _typeIReflectImplementation.GetMethods(bindingAttr);
}
PropertyInfo[] IReflect.GetProperties(BindingFlags bindingAttr)
{
return _typeIReflectImplementation.GetProperties(bindingAttr);
}
PropertyInfo IReflect.GetProperty(string name, BindingFlags bindingAttr)
{
return _typeIReflectImplementation.GetProperty(name, bindingAttr);
}
PropertyInfo IReflect.GetProperty(string name, BindingFlags bindingAttr, Binder binder, Type returnType, Type[] types, ParameterModifier[] modifiers)
{
return _typeIReflectImplementation.GetProperty(name, bindingAttr, binder, returnType, types, modifiers);
}
object IReflect.InvokeMember(string name, BindingFlags invokeAttr, Binder binder, object target, object[] args, ParameterModifier[] modifiers, CultureInfo culture, string[] namedParameters)
{
if (name == "[DISPID=0]")
{
if (_eventHandler != null)
{
_eventHandler(_sender, EventArgs.Empty);
}
}
return null;
}
Type IReflect.UnderlyingSystemType
{
get
{
return _typeIReflectImplementation.UnderlyingSystemType;
}
}
#endregion
#region IDisposable Members
public void Dispose()
{
Detach();
}
#endregion
}
}