public XtermTerminalView()
{
InitializeComponent();
StartMediatorTask();
_webView = new WebView(WebViewExecutionMode.SeparateThread)
{
DefaultBackgroundColor = Colors.Transparent
};
Root.Children.Add(_webView);
_webView.NavigationCompleted += _webView_NavigationCompleted;
_webView.NavigationStarting += _webView_NavigationStarting;
_webView.NewWindowRequested += _webView_NewWindowRequested;
_copyMenuItem = new MenuFlyoutItem {
Text = I18N.Translate("Command.Copy")
};
_copyMenuItem.Click += Copy_Click;
_pasteMenuItem = new MenuFlyoutItem {
Text = I18N.Translate("Command.Paste")
};
_pasteMenuItem.Click += Paste_Click;
_webView.ContextFlyout = new MenuFlyout
{
Items = { _copyMenuItem, _pasteMenuItem }
};
_optionsChanged = new DebouncedAction <TerminalOptions>(Dispatcher, TimeSpan.FromMilliseconds(800), async options =>
{
var serialized = JsonConvert.SerializeObject(options);
await ExecuteScriptAsync($"changeOptions('{serialized}')");
});
// _sizedChanged is used to debounce terminal resize events to
// avoid spamming the terminal with them (this can result in
// buffer corruption).
_sizeChanged = new DebouncedAction <TerminalSize>(Dispatcher, TimeSpan.FromMilliseconds(1000), async size => {
await ViewModel.Terminal.SetSize(size).ConfigureAwait(true);
// Allow output to the terminal soon (hopefully, once the resize event has been processed).
_unblockOutput.Invoke(true);
});
_outputBlockedBuffer = new MemoryStream();
_outputBlocked = new ManualResetEventSlim();
// _unblockOutput allows output to the terminal again, 500ms after it invoked.
_unblockOutput = new DebouncedAction <bool>(Dispatcher, TimeSpan.FromMilliseconds(500), x => {
_outputBlocked.Reset();
});
_navigationCompleted = new SemaphoreSlim(0, 1);
_connectedEvent = new ManualResetEventSlim(false);
_webView.Navigate(new Uri("ms-appx-web:///Client/index.html"));
}
void IxtermEventListener.OnTerminalResized(int columns, int rows)
{
if (_connectedEvent.IsSet) // only propagate after xterm.js is finished with fitting
{
// Prevent output from being sent during the terminal while
// resize events are being processed (to avoid buffer corruption).
_outputBlocked.Set();
_dispatcherJobs.Add(() => _sizeChanged.Invoke(new TerminalSize {
Columns = columns, Rows = rows
}));
}
}
public Task ChangeOptions(TerminalOptions options)
{
_optionsChanged.Invoke(options);
return(Task.CompletedTask);
}