public WebView2Handler()
{
WebView2Loader.EnsureWebView2Runtime();
Control = new WebView2Control();
Control.CoreWebView2Ready += Control_CoreWebView2Ready;
InitializeAsync();
}
public WebView2Handler()
{
WebView2Loader.EnsureWebView2Runtime();
Control = new WebView2Control();
Control.CoreWebView2InitializationCompleted += Control_CoreWebView2Ready;
#if WPF
_host = new WebView2Host();
_host.Child = Control;
_host.Handler = this;
#endif
}
private WebView.IHandler Create_WebView2()
{
try
{
return(WebView2Loader.Create());
}
catch
{
Debug.WriteLine("Warning: Could not create WebView2 handler. Add Microsoft.Web.WebView2 nuget package to your project to take advantage of the latest web control.");
// switch to SWF version for subsequent controls
UseSwfWebView();
return(new WebViewHandler());
}
}
private async void timer_Elapsed(object sender, EventArgs e)
{
if (WebView2Loader.Detect())
{
timer?.Stop();
// wait for things to percolate
await Task.Delay(2000);
// ensure we didn't get closed already..
if (timer != null)
{
Close();
}
}
}
private WebView.IHandler Create_WebView2()
{
#if NET45
Debug.WriteLine("Warning: .NET 4.5 target cannot use WebView2. Target at least .NET 4.6.2, .NET Core, or .NET 5 instead and install the Microsoft.Web.WebView2 nuget package. Falling back to the Windows Forms WebView.");
UseSwfWebView();
return(new WebViewHandler());
#else
try
{
return(WebView2Loader.Create());
}
catch
{
Debug.WriteLine("Warning: Could not create WebView2 handler. Add Microsoft.Web.WebView2 nuget package to your project to take advantage of the latest web control.");
// switch to SWF version for subsequent controls
UseSwfWebView();
return(new WebViewHandler());
}
#endif
}
protected override void CreateHandle()
{
base.CreateHandle();
if (!DesignMode)
{
if (_webViewEnvironment == null)
{
BeforeEnvironmentCreatedEventArgs eventArgs = new BeforeEnvironmentCreatedEventArgs();
OnBeforeEnvironmentCreated(eventArgs);
string browserExecutableFolder = eventArgs.BrowserExecutableFolder ?? string.Empty;
string userDataFolder = eventArgs.UserDataFolder ?? string.Empty;
string browserArguments = eventArgs.BrowserArguments ?? string.Empty;
//WebView2Loader.CreateEnvironmentWithDetails(string.Empty, string.Empty, string.Empty, OnWebView2EnvironmentCreated);
WebView2Loader.CreateEnvironmentWithDetails(browserExecutableFolder, userDataFolder, browserArguments, OnWebView2EnvironmentCreated);
}
else
{
_webViewEnvironment.CreateWebView(Handle, OnWebViewCreated);
}
}
}
private void OnInstall(object sender, EventArgs e)
{
WebView2Loader.InstallWebView2WithUI(this);
Close();
}
public ManualInstallDialog()
{
WebView2Loader.CenterDialog(this);
string Loc(string str) => Application.Instance.Localize(typeof(WebView2Loader), str);
Title = Loc("Install WebView2 Runtime");
MinimumSize = new Size(300, 200);
// controls
var installButton = new Button {
Text = Loc("Download && Install Now")
};
installButton.Click += OnInstall;
var downloadButton = new LinkButton {
Text = Loc("Open the WebView2 download page to install manually")
};
downloadButton.Click += OnDownload;
var cancelButton = new Button {
Text = Loc("Fallback to IE")
};
cancelButton.Click += OnCancel;
var description = new Label
{
TextAlignment = TextAlignment.Center,
Text = Loc("This application requires the Microsoft Edge WebView2 Runtime.\nPlease install it to continue.")
};
// layout
var layout = new DynamicLayout {
Padding = 10, DefaultSpacing = new Size(5, 5)
};
layout.AddSpace();
layout.Add(description);
layout.AddSpace();
layout.AddSeparateRow(null, downloadButton);
Content = layout;
DefaultButton = installButton;
PositiveButtons.Add(installButton);
NegativeButtons.Add(cancelButton);
Shown += (sender, e) => installButton.Focus();
timer = new UITimer {
Interval = 1.0
};
timer.Elapsed += timer_Elapsed;
timer.Start();
}
public WebView2Handler()
{
WebView2Loader.EnsureWebView2Runtime();
Control = new WebView2Control();
Control.CoreWebView2InitializationCompleted += Control_CoreWebView2Ready;
}