public DomEventInstance(DomNodeInstance node, EventInfo eventInfo)
{
Getter = new ClrFunctionInstance(node.Engine, (thisObject, arguments) => _function ?? JsValue.Null);
Setter = new ClrFunctionInstance(node.Engine, (thisObject, arguments) =>
{
if (_handler != null)
{
eventInfo.RemoveEventHandler(node.Value, _handler);
_handler = null;
_function = null;
}
if (arguments[0].Is<FunctionInstance>())
{
_function = arguments[0].As<FunctionInstance>();
_handler = (s, ev) =>
{
var sender = s.ToJsValue(node.Context);
var args = ev.ToJsValue(node.Context);
_function.Call(sender, new [] { args });
};
eventInfo.AddEventHandler(node.Value, _handler);
}
return arguments[0];
});
}
/// <summary>
/// Asynchronously loads a document from the provider <paramref name="url"/> address.
/// </summary>
/// <param name="url"></param>
/// <returns>The loaded document instance.</returns>
public async Task <WebLoaderResult> LoadAsync(string url)
{
// If the route was redirected
var redirected = false;
// Prepare the requester callback
DomEventHandler requesterCallback = (object s, AngleSharp.Dom.Events.Event e)
=> Requester_Requested(e as AngleSharp.Dom.Events.RequestEvent, ref redirected);
// Hook into requested event to monitor a single request in the requester
Requester.Requested += requesterCallback;
// Create a browsing context for the request
var context = BrowsingContext.New(Configuration);
// Create the result
var result = new WebLoaderResult
{
Redirected = redirected,
Document = await context.OpenAsync(url),
};
// Once loaded, release hook
Requester.Requested -= requesterCallback;
// Return the document once loaded
return(result);
}
public void EventsCapturingDispatchHandler()
{
var evName = "click";
var element = document.QuerySelector("img");
var args = document.CreateEvent("event");
var beforeOther = true;
args.Init(evName, true, true);
DomEventHandler listener1 = (s, ev) =>
{
Assert.AreEqual(evName, ev.Type);
Assert.AreEqual(EventPhase.AtTarget, ev.Phase);
Assert.AreEqual(element, ev.CurrentTarget);
Assert.AreEqual(element, ev.OriginalTarget);
Assert.IsFalse(beforeOther);
};
DomEventHandler listener2 = (s, ev) =>
{
Assert.AreEqual(evName, ev.Type);
Assert.AreEqual(EventPhase.Capturing, ev.Phase);
Assert.AreEqual(element.Parent, ev.CurrentTarget);
Assert.AreEqual(element, ev.OriginalTarget);
beforeOther = false;
};
element.AddEventListener(evName, listener1);
element.Parent.AddEventListener(evName, listener2, true);
element.Dispatch(args);
}
public DomEventInstance(DomNodeInstance node, EventInfo eventInfo = null)
{
Getter = new ClrFunctionInstance(node.Engine, (thisObject, arguments) => _function ?? JsValue.Null);
Setter = new ClrFunctionInstance(node.Engine, (thisObject, arguments) =>
{
if (_handler != null)
{
if (eventInfo != null)
{
eventInfo.RemoveEventHandler(node.Value, _handler);
}
_handler = null;
_function = null;
}
if (arguments[0].Is <FunctionInstance>())
{
_function = arguments[0].As <FunctionInstance>();
_handler = (s, ev) =>
{
var sender = s.ToJsValue(node.Context);
var args = ev.ToJsValue(node.Context);
_function.Call(sender, new [] { args });
};
if (eventInfo != null)
{
eventInfo.AddEventHandler(node.Value, _handler);
}
}
return(arguments[0]);
});
}
/// <summary>
/// Returns a task that is completed once the event is fired.
/// </summary>
/// <typeparam name="TEventTarget">The event target type.</typeparam>
/// <param name="node">The node that fires the event.</param>
/// <param name="eventName">The name of the event to be awaited.</param>
/// <returns>The awaitable task returning the event arguments.</returns>
public static async Task <Event> AwaitEventAsync <TEventTarget>(this TEventTarget node, String eventName)
where TEventTarget : IEventTarget
{
if (node == null)
{
throw new ArgumentNullException(nameof(node));
}
if (eventName == null)
{
throw new ArgumentNullException(nameof(eventName));
}
var completion = new TaskCompletionSource <Event>();
DomEventHandler handler = (s, ev) => completion.TrySetResult(ev);
node.AddEventListener(eventName, handler);
try
{
return(await completion.Task.ConfigureAwait(false));
}
finally
{
node.RemoveEventListener(eventName, handler);
}
}
private JsValue SetEventHandler(JsValue thisObject, JsValue[] arguments)
{
var node = thisObject.As <DomNodeInstance>();
if (node != null)
{
if (_handler != null)
{
_eventInfo?.RemoveEventHandler(node.Value, _handler);
_handler = null;
_function = null;
}
if (arguments[0].Is <FunctionInstance>())
{
_function = arguments[0].As <FunctionInstance>();
_handler = (s, ev) =>
{
var sender = s.ToJsValue(_engine);
var args = ev.ToJsValue(_engine);
_function.Call(sender, new[] { args });
};
_eventInfo?.AddEventHandler(node.Value, _handler);
}
}
return(arguments[0]);
}
void HandleDownloadActivity()
{
dynamic domDocument = this.webBrowser.Document;
if (domDocument == null)
{
return;
}
if (loading || loaded)
{
return;
}
this.loading = true;
if (domDocument.readyState == "complete")
{
DomDocumetCompleteHandler(domDocument);
}
else
{
DomEventHandler handler = null;
handler = new DomEventHandler(delegate
{
if (domDocument.readyState == "complete")
{
domDocument.detachEvent("onreadystatechange", handler);
DomDocumetCompleteHandler(domDocument);
}
});
domDocument.attachEvent("onreadystatechange", handler);
}
}
public FieldContext(FormContext formContext) {
FormContext = formContext;
_onBlurHandler = Element_OnBlur;
_onChangeHandler = Element_OnChange;
_onInputHandler = Element_OnInput;
_onPropertyChangeHandler = Element_OnPropertyChange;
}
public HelloWorld(DOMElement te)
{
this.te = te;
te.InnerHTML = "hello";
DomEventHandler handler = new DomEventHandler(DoSomething);
DomEvent.AddHandler(te, "click", handler);
}
public FieldContext(FormContext formContext)
{
FormContext = formContext;
_onBlurHandler = Element_OnBlur;
_onChangeHandler = Element_OnChange;
_onInputHandler = Element_OnInput;
_onPropertyChangeHandler = Element_OnPropertyChange;
}
protected void AddEventHandler(string eventName, DomEventHandler handler)
{
var eventHandlerId = ++nextEventHandlerId;
eventHandlersMap.Add(eventHandlerId, handler);
AddEventListener(Json.Serialize(new Dictionary <string, string> {
{ "id", _id }, { "eventHandlerId", eventHandlerId.ToString() }, { "eventName", eventName }
}));
}
/// <summary>
/// Returns a task that is completed once the event is fired.
/// </summary>
/// <typeparam name="TEventTarget">The event target type.</typeparam>
/// <param name="node">The node that fires the event.</param>
/// <param name="eventName">The name of the event to be awaited.</param>
/// <returns>The awaitable task returning the event arguments.</returns>
public static async Task <Event> AwaitEvent <TEventTarget>(this TEventTarget node, String eventName)
where TEventTarget : IEventTarget
{
var completion = new TaskCompletionSource <Event>();
DomEventHandler handler = (s, ev) => completion.TrySetResult(ev);
node.AddEventListener(eventName, handler);
try { return(await completion.Task); }
finally { node.RemoveEventListener(eventName, handler); }
}
/// <summary>
/// Removes an event listener from the Node.
/// </summary>
/// <param name="type">
/// A string representing the event type being removed.
/// </param>
/// <param name="callback">
/// The listener parameter indicates the EventListener function to be
/// removed.
/// </param>
/// <param name="capture">
/// Specifies whether the EventListener being removed was registered as
/// a capturing listener or not.
/// </param>
public void RemoveEventListener(String type, DomEventHandler callback = null, Boolean capture = false)
{
if (callback != null && _listeners != null)
{
_listeners.Remove(new RegisteredEventListener
{
Type = type,
Callback = callback,
IsCaptured = capture
});
}
}
/// <summary>
/// Register an event handler of a specific event type on the Node.
/// </summary>
/// <param name="type">
/// A string representing the event type to listen for.
/// </param>
/// <param name="callback">
/// The listener parameter indicates the EventListener function to be
/// added.
/// </param>
/// <param name="capture">
/// True indicates that the user wishes to initiate capture. After
/// initiating capture, all events of the specified type will be
/// dispatched to the registered listener before being dispatched to
/// any Node beneath it in the DOM tree. Events which are bubbling
/// upward through the tree will not trigger a listener designated to
/// use capture.
/// </param>
public void AddEventListener(String type, DomEventHandler callback = null, Boolean capture = false)
{
if (callback != null)
{
Listeners.Add(new RegisteredEventListener
{
Type = type,
Callback = callback,
IsCaptured = capture
});
}
}
/// <summary>
/// Removes an event listener from the Node.
/// </summary>
/// <param name="type">
/// A string representing the event type being removed.
/// </param>
/// <param name="callback">
/// The listener parameter indicates the EventListener function to be
/// removed.
/// </param>
/// <param name="capture">
/// Specifies whether the EventListener being removed was registered as
/// a capturing listener or not.
/// </param>
public void RemoveEventListener(String type, DomEventHandler callback = null, Boolean capture = false)
{
if (callback == null)
return;
_listeners.Remove(new RegisteredEventListener
{
Type = type,
Callback = callback,
IsCaptured = capture
});
}
/// <summary>
/// Register an event handler of a specific event type on the Node.
/// </summary>
/// <param name="type">
/// A string representing the event type to listen for.
/// </param>
/// <param name="callback">
/// The listener parameter indicates the EventListener function to be
/// added.
/// </param>
/// <param name="capture">
/// True indicates that the user wishes to initiate capture. After
/// initiating capture, all events of the specified type will be
/// dispatched to the registered listener before being dispatched to
/// any Node beneath it in the DOM tree. Events which are bubbling
/// upward through the tree will not trigger a listener designated to
/// use capture.
/// </param>
public void AddEventListener(String type, DomEventHandler callback = null, Boolean capture = false)
{
if (callback == null)
{
return;
}
Listeners.Add(new RegisteredEventListener
{
Type = type,
Callback = callback,
IsCaptured = capture
});
}
public void EventsAddHandler()
{
var evName = "click";
var element = document.QuerySelector("img");
var args = document.CreateEvent("event");
args.Init(evName, true, true);
var count = 0;
DomEventHandler listener1 = (s, ev) => count++;
element.AddEventListener(evName, listener1);
element.Dispatch(args);
Assert.AreEqual(1, count);
Assert.AreEqual(evName, args.Type);
Assert.IsFalse(args.IsTrusted);
}
public FormContext(FormElement formElement, DOMElement validationSummaryElement) {
FormElement = formElement;
_validationSummaryElement = validationSummaryElement;
Type.SetField(formElement, _formValidationTag, this);
// need to retrieve the actual <ul> element, since that will be dynamically modified
if (validationSummaryElement != null) {
DOMElementCollection ulElements = validationSummaryElement.GetElementsByTagName("ul");
if (ulElements.Length > 0) {
_validationSummaryULElement = ulElements[0];
}
}
_onClickHandler = Form_OnClick;
_onSubmitHandler = Form_OnSubmit;
}
public Controller(View view)
{
if (Instance == null)
{
Instance = this;
this.view = view;
}
this.oldOnFocus = this.view.uiEventName.OnFocus;
this.view.uiEventName.OnFocus = OnEventNameFocus;
this.oldTransformReceivedSuggestions = this.view.uiEventName.TransformReceivedSuggestions;
this.view.uiEventName.TransformReceivedSuggestions = TransformReceivedSuggestions;
this.oldItemChosen = this.view.uiEventName.ItemChosen;
this.view.uiEventName.ItemChosen = ItemChosen;
view.uiEventName.Parameters.Set("returnInfo", true);
DomEvent.AddHandler(view.uiContainer, "keydown", OnContainerKeyDown);
DomEvent.AddHandler(view.uiAdd, "click", OnAddClick);
Misc.AddHoverText(view.uiSummary, "click to select an event");
}
public FormContext(FormElement formElement, DOMElement validationSummaryElement)
{
FormElement = formElement;
_validationSummaryElement = validationSummaryElement;
Type.SetField(formElement, _formValidationTag, this);
// need to retrieve the actual <ul> element, since that will be dynamically modified
if (validationSummaryElement != null)
{
DOMElementCollection ulElements = validationSummaryElement.GetElementsByTagName("ul");
if (ulElements.Length > 0)
{
_validationSummaryULElement = ulElements[0];
}
}
_onClickHandler = Form_OnClick;
_onSubmitHandler = Form_OnSubmit;
}
public void EventsCustomHandlerViaConstructor()
{
var evName = "myevent";
var element = document.QuerySelector("img");
var args = new CustomEvent();
var mydetails = new object();
args.Init(evName, true, true, mydetails);
DomEventHandler listener = (s, ev) =>
{
Assert.AreEqual(args, ev);
Assert.AreEqual(evName, ev.Type);
Assert.AreEqual(EventPhase.AtTarget, ev.Phase);
Assert.AreEqual(element, ev.CurrentTarget);
Assert.AreEqual(element, ev.OriginalTarget);
Assert.AreEqual(mydetails, args.Details);
};
element.AddEventListener(evName, listener);
element.Dispatch(args);
}
private void HandleDownloadActivity()
{
try
{
mshtml.HTMLDocument domDocument = (mshtml.HTMLDocument) this._webBrowser.Document;
if (domDocument == null)
{
return;
}
if (_isLoading || _isLoaded)
{
return;
}
this._isLoading = true;
if (domDocument.readyState == "complete")
{
DomDocumentCompleteHandler(domDocument);
}
else
{
DomEventHandler handler = null;
handler = new DomEventHandler(delegate
{
if (domDocument.readyState == "complete")
{
domDocument.detachEvent("onreadystatechange", handler);
DomDocumentCompleteHandler(domDocument);
}
});
domDocument.attachEvent("onreadystatechange", handler);
}
}
catch (Exception ex)
{
AppLog.LogException(ex);
}
}
public static void RemoveContextMenu(this IElement element, DomEventHandler handler) =>
element.RemoveEventListener("contextmenu", handler);
public static void AddContextMenu(this IElement element, DomEventHandler handler) =>
element.AddEventListener("contextmenu", handler);
public static void RemoveUnload(this IElement element, DomEventHandler handler) =>
element.RemoveEventListener("unload", handler);
public static void AddUnload(this IElement element, DomEventHandler handler) =>
element.AddEventListener("unload", handler);
public static void RemoveFocusOut(this IElement element, DomEventHandler handler) =>
element.RemoveEventListener("focusout", handler);
void IEventTarget.RemoveEventListener(string type, DomEventHandler callback, bool capture) => _host.RemoveEventListener(type, callback, capture);
public void RemoveEventListener(string type, DomEventHandler callback = null, bool capture = false)
{
}
public void AddEventListener(string type, DomEventHandler callback = null, bool capture = false)
{
throw new NotImplementedException();
}
public RegisteredEventListener(String type, DomEventHandler callback, Boolean isCaptured)
{
Type = type;
Callback = callback;
IsCaptured = isCaptured;
}
public void RemoveEventListener(String type, DomEventHandler callback = null, Boolean capture = false)
{
_host.RemoveEventListener(type, callback, capture);
}
///<summary>
///Removes a DOM event handler from the element that exposes the event.
///</summary>
///<param name="element">The element that exposes the event.</param>
///<param name="eventName">The name of the event. Do not include the "on" prefix. For example, specify "click" instead of "onclick".</param>
///<param name="handler">The client function that is called when the event occurs.</param>
public static void removeHandler(HtmlElement element, string eventName, DomEventHandler handler) { }
///<summary>
///Removes a DOM event handler from the singleton object represented by a type.
///(Eg. Window and Document)
///</summary>
///<param name="type">The element that exposes the event.</param>
///<param name="eventName">The name of the event. Do not include the "on" prefix. For example, specify "click" instead of "onclick".</param>
///<param name="handler">The client function that is called when the event occurs.</param>
public static void removeHandler(System.Type type, string eventName, DomEventHandler handler) { }
public void AddEventListener(String type, DomEventHandler callback = null, Boolean capture = false)
{
_window.AddEventListener(type, callback, capture);
}
public static void AddFocusOut(this IElement element, DomEventHandler handler) =>
element.AddEventListener("focusout", handler);
public void RemoveEventListener(String type, DomEventHandler callback = null, Boolean capture = false)
{
_host.RemoveEventListener(type, callback, capture);
}
public void AddEventListener(String type, DomEventHandler callback = null, Boolean capture = false)
{
_window.AddEventListener(type, callback, capture);
}