browser - permitir - Navegador web para manejar ventanas emergentes dentro de la aplicación

permitir ventanas emergentes safari iphone

Question

Estoy tratando de usar el control WebBrowser para lanzar un nuevo formulario para ventanas emergentes en lugar de abrirlo en IE. He intentado utilizar AxWebBrowser en su lugar para obtener las ventanas emergentes que funcionan con el evento NewWindow3 y simplemente haciendo e.ppDisp = AxWebBrowser.Application , pero hay muchas limitaciones que vienen con AxWebBrowser. Por lo tanto, en su lugar, estoy intentando extender el WebBrowser normal para incluir el evento NewWindow3 como AxWebBrowser, pero tengo problemas. Con e.ppDisp = AxWebBrowser.Application recibo errores: "InvalidVariant fue detectado" seguido de "La variante OLE especificada no es válida" si continúo.

Nota: Esta es la primera vez que extiendo una clase, así que podría estar buscando algo simple. Si intento simplemente navegar a la nueva URL en la nueva ventana, recibo errores de script de Java desde el sitio.

He actualizado el código base en los comentarios. Han eliminado la clase ExtendedWebBrowser para una versión más pequeña y más agradable. Aquí está el Nuevo Código:

Desde el formulario principal y un formulario BrowserPopup muy similar -

Protected Overrides Sub OnLoad(ByVal e As EventArgs)
MyBase.OnLoad(e)
nativeBrowser = DirectCast(ExtendedWebBrowser1.ActiveXInstance, SHDocVw.WebBrowser)
AddHandler nativeBrowser.NewWindow3, AddressOf nativeBrowser_NewWindow3
AddHandler nativeBrowser.WindowClosing, AddressOf nativeBrowser_WindowClosing
End Sub
Private Sub nativeBrowser_NewWindow3(ByRef ppDisp As Object, ByRef Cancel As Boolean, ByVal dwflags As UInteger, ByVal bStrUrlContext As String, ByVal bstrUrl As String)
Dim popup = New BrowserPopup()
popup.Show(Me)
popup.browserPop.DocumentText = bStrUrlContext
ppDisp = popup.browserPop.ActiveXInstance
End Sub
Private Sub nativeBrowser_WindowClosing(ByVal IsChildWindow As Boolean, ByRef Cancel As Boolean)
MsgBox("working?") ''<<<Doesn''t Trigger>>>
End Sub
Protected Overrides Sub OnFormClosing(ByVal e As FormClosingEventArgs)
MyBase.OnFormClosing(e)
End Sub

Además, si ayuda, aquí está la secuencia de comandos de la página que debería poder cerrar el formulario emergente pero parece que desactiva el WebBrowser.

<table isListBtn="false" cellpadding="0" enabled="true" class="buttonBorderBlue"
cellspacing="0" border="0" onClick="if (typeof(workpaneMediator_toolbar)!=''undefined'')
workpaneMediator_toolbar.onSelect(''CANCEL_ACTION'', this)"
actionType="CLOSE_WINDOW_TYPE" id="workpaneMediator_toolbar_CANCEL_ACTIONWrapper"
nowrap><tr><td class="buttonBlueTD">

Answer 1

Tiene razón al decir que WindowClosing no es despedido por Winforms WebBrowser Control, lo confirmo. Parece ser un error de larga data en el código de alojamiento .NET WebBrowser ActiveX, que nunca se ha abordado. Consulte esta publicación para obtener más detalles y una posible solución.

Otra posible solución alternativa puede ser el control WebBrowser ActiveX Control directamente a través de la clase AxHost , en cuyo caso WindowClosing se AxHost correctamente. Ejemplo:

DO#:

using Microsoft.Win32;
using System;
using System.Diagnostics;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace WebBrowserApp
{
// MainForm
public partial class MainForm : Form
{
WebBrowser webBrowser;
public MainForm()
{
InitializeComponent();
InitBrowser();
if (this.webBrowser.Document == null && this.webBrowser.ActiveXInstance == null)
throw new ApplicationException ("Unable to initialize WebBrowser ActiveX control.");
var ax = (SHDocVw.WebBrowser)this.webBrowser.ActiveXInstance;
ax.NewWindow2 += (ref object ppDisp, ref bool Cancel) =>
{
var popup = new RawBrowserPopup();
popup.Visible = true;
ppDisp = popup.WebBrowser.ActiveXInstance;
};
this.Load += (s, e) =>
{
this.webBrowser.DocumentText = "<a target=/"_blank/" href=/"javascript:''<button onclick=//'window.close()//'>Close</button>''/">Go</a>";
};
}
// create a WebBrowser instance
void InitBrowser()
{
this.webBrowser = new WebBrowser();
this.webBrowser.Dock = DockStyle.Fill;
this.Controls.Add(this.webBrowser);
this.webBrowser.Visible = true;
}
}
// RawWebBrowser
public class RawWebBrowser : AxHost
{
public RawWebBrowser()
: base("8856f961-340a-11d0-a96b-00c04fd705a2")
{
}
public event EventHandler Initialized;
protected override void AttachInterfaces()
{
if (this.Initialized != null)
this.Initialized(this, new EventArgs());
}
public object ActiveXInstance
{
get
{
return base.GetOcx();
}
}
}
// RawBrowserPopup
public class RawBrowserPopup : Form
{
RawWebBrowser webBrowser;
public RawWebBrowser WebBrowser
{
get { return this.webBrowser; }
}
public RawBrowserPopup()
{
this.webBrowser = new RawWebBrowser();
this.webBrowser.Initialized += (s, e) =>
{
var ax = (SHDocVw.WebBrowser)this.webBrowser.ActiveXInstance;
ax.NewWindow2 += (ref object ppDisp, ref bool Cancel) =>
{
var popup = new RawBrowserPopup();
popup.Visible = true;
ppDisp = popup.WebBrowser.ActiveXInstance;
};
ax.WindowClosing += (bool IsChildWindow, ref bool Cancel) =>
{
Cancel = true;
this.Close();
};
};
this.webBrowser.Dock = DockStyle.Fill;
this.Controls.Add(this.webBrowser);
this.webBrowser.Visible = true;
}
}
}

VB.NET:

Public Class Form1
Dim webBrowser As WebBrowser = New WebBrowser()
Sub New()
MyBase.New()
Me.InitializeComponent()
webBrowser.Dock = DockStyle.Fill
Me.Controls.Add(webBrowser)
webBrowser.Visible = True
End Sub
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
Me.webBrowser.DocumentText = "<a target=''_blank'' href=''javascript:""<button onclick=/""window.close()/"">Close</button>""''>Go</a>"
Dim ActiveX As SHDocVw.WebBrowser = Me.webBrowser.ActiveXInstance
AddHandler ActiveX.NewWindow2, AddressOf WebBrowser_ActiveX_NewWindow2
End Sub
Private Sub WebBrowser_ActiveX_NewWindow2(ByRef ppDisp As Object, ByRef Cancel As Boolean)
Dim popup As RawBrowserPopup = New RawBrowserPopup()
popup.Visible = True
ppDisp = popup.WebBrowser.ActiveXInstance
End Sub
End Class
Public Class RawWebBrowser
Inherits System.Windows.Forms.AxHost
Sub New()
MyBase.New("8856f961-340a-11d0-a96b-00c04fd705a2")
End Sub
Event Initialized(sender As Object, e As EventArgs)
Protected Overrides Sub AttachInterfaces()
RaiseEvent Initialized(Me, New EventArgs())
End Sub
Public ReadOnly Property ActiveXInstance() As Object
Get
Return MyBase.GetOcx()
End Get
End Property
End Class
Public Class RawBrowserPopup
Inherits System.Windows.Forms.Form
Dim WithEvents rawBrowser As RawWebBrowser = New RawWebBrowser()
Sub New()
MyBase.New()
rawBrowser.Dock = DockStyle.Fill
Me.Controls.Add(rawBrowser)
rawBrowser.Visible = True
End Sub
Public ReadOnly Property WebBrowser() As Object
Get
Return rawBrowser
End Get
End Property
Private Sub rawBrowser_Initialized(sender As Object, e As EventArgs) Handles rawBrowser.Initialized
Dim activeX As SHDocVw.WebBrowser = rawBrowser.ActiveXInstance
AddHandler activeX.NewWindow2, AddressOf activeX_NewWindow2
AddHandler activeX.WindowClosing, AddressOf activeX_WindowClosing
End Sub
Private Sub activeX_NewWindow2(ByRef ppDisp As Object, ByRef Cancel As Boolean)
Dim popup As RawBrowserPopup = New RawBrowserPopup()
popup.Visible = True
ppDisp = popup.WebBrowser.ActiveXInstance
End Sub
Private Sub activeX_WindowClosing(IsChildWindow As Boolean, ByRef Cancel As Boolean)
Cancel = True
Me.Close()
End Sub
End Class