public IToast ShowAsync(object content, float duration, ToastPosition position = ToastPosition.Bottom, IDataContext context = null)
{
View holder = null;
var currentActivity = PlatformExtensions.CurrentActivity;
if (currentActivity != null)
{
var selector = currentActivity.GetBindingMemberValue(AttachedMembersDesign.Activity.SnackbarViewSelector);
holder = selector == null
? currentActivity.GetBindingMemberValue(AttachedMembersDesign.Activity.SnackbarView)
: selector(content, position, context);
}
if (holder == null)
{
return(_defaultPresenter.ShowAsync(content, duration, position, context));
}
var templateSelector = currentActivity.GetBindingMemberValue(AttachedMembersDesign.Activity.SnackbarTemplateSelector);
var toastImpl = new ToastImpl();
if (_threadManager.IsUiThread)
{
ShowInternal(toastImpl, templateSelector, holder, content, duration, position, context);
}
else
{
_threadManager.InvokeOnUiThreadAsync(() => ShowInternal(toastImpl, templateSelector, holder, content, duration, position, context), OperationPriority.High);
}
return(toastImpl);
}
/// <summary>
/// Displays a message box that has a message, title bar caption, button, and icon; and that accepts a default message
/// box result and returns a result.
/// </summary>
/// <param name="messageBoxText">A <see cref="T:System.String" /> that specifies the text to display.</param>
/// <param name="caption">A <see cref="T:System.String" /> that specifies the title bar caption to display.</param>
/// <param name="button">A <see cref="MessageButton" /> value that specifies which button or buttons to display.</param>
/// <param name="icon">A <see cref="MessageImage" /> value that specifies the icon to display.</param>
/// <param name="defaultResult">
/// A <see cref="MessageResult" /> value that specifies the default result of the message
/// box.
/// </param>
/// <param name="context">The specified context.</param>
/// <returns>A <see cref="MessageResult" /> value that specifies which message box button is clicked by the user.</returns>
public Task <MessageResult> ShowAsync(string messageBoxText, string caption = "",
MessageButton button = MessageButton.Ok, MessageImage icon = MessageImage.None,
MessageResult defaultResult = MessageResult.None, IDataContext context = null)
{
bool success;
MessageBoxButton buttons = ConvertMessageBoxButtons(button, out success);
Should.BeSupported(success, "The MessageBoxAdapter doesn't support {0} value", button);
if (_threadManager.IsUiThread)
{
MessageBoxResult result = MessageBox.Show(messageBoxText, caption, buttons,
ConvertMessageBoxImages(icon),
ConvertMessageBoxResults(defaultResult));
return(ToolkitExtensions.FromResult(ConvertMessageBoxResult(result)));
}
var tcs = new TaskCompletionSource <MessageResult>();
_threadManager.InvokeOnUiThreadAsync(() =>
{
MessageBoxResult result = MessageBox.Show(messageBoxText, caption, buttons,
ConvertMessageBoxImages(icon), ConvertMessageBoxResults(defaultResult));
tcs.SetResult(ConvertMessageBoxResult(result));
});
return(tcs.Task);
}
/// <summary>
/// Transitions the control between two states.
/// </summary>
/// <returns>
/// true if the control successfully transitioned to the new state; otherwise, false.
/// </returns>
/// <param name="view">The view to transition between states. </param>
/// <param name="stateName">The state to transition to.</param>
/// <param name="useTransitions">true to use a VisualTransition to transition between states; otherwise, false.</param>
/// <param name="context">The specified context.</param>
public Task <bool> GoToStateAsync(IView view, string stateName, bool useTransitions, IDataContext context)
{
Should.NotBeNull(view, "view");
#if WPF
var control = view.GetUnderlyingView() as FrameworkElement;
#else
var control = view.GetUnderlyingView() as Control;
#endif
if (control == null)
{
return(Empty.FalseTask);
}
var tcs = new TaskCompletionSource <bool>();
_threadManager.InvokeOnUiThreadAsync(() =>
{
#if WPF
var result = System.Windows.VisualStateManager.GoToState(control, stateName, useTransitions);
#elif !NETFX_CORE && !WINDOWSCOMMON
var result = System.Windows.VisualStateManager.GoToState(control, stateName, useTransitions);
#else
var result = Windows.UI.Xaml.VisualStateManager.GoToState(control, stateName, useTransitions);
#endif
tcs.SetResult(result);
});
return(tcs.Task);
}
public IToast ShowAsync(object content, float duration, ToastPosition position = ToastPosition.Bottom, IDataContext context = null)
{
var toastImpl = new ToastImpl();
if (_threadManager.IsUiThread)
{
toastImpl.CloseAction = ShowInternal(content, duration, position, context, toastImpl.Tcs);
}
else
{
_threadManager.InvokeOnUiThreadAsync(() => toastImpl.CloseAction = ShowInternal(content, duration, position, context, toastImpl.Tcs));
}
return(toastImpl);
}
public Task <MessageResult> ShowAsync(string messageBoxText, string caption = "",
MessageButton button = MessageButton.Ok, MessageImage icon = MessageImage.None,
MessageResult defaultResult = MessageResult.None, IDataContext context = null)
{
if (_threadManager.IsUiThread)
{
return(ToolkitExtensions.FromResult(ShowMessage(messageBoxText, caption, button, icon, defaultResult)));
}
var tcs = new TaskCompletionSource <MessageResult>();
_threadManager.InvokeOnUiThreadAsync(
() => tcs.SetResult(ShowMessage(messageBoxText, caption, button, icon, defaultResult)));
return(tcs.Task);
}
/// <summary>
/// Shows the specified message.
/// </summary>
public Task ShowAsync(object content, float duration, ToastPosition position = ToastPosition.Bottom, IDataContext context = null)
{
var tcs = new TaskCompletionSource <object>();
if (_threadManager.IsUiThread)
{
ShowInternal(content, duration, position, context, tcs);
}
else
{
_threadManager.InvokeOnUiThreadAsync(() => ShowInternal(content, duration, position, context, tcs));
}
return(tcs.Task);
}
public IToast ShowAsync(object content, float duration, ToastPosition position = ToastPosition.Bottom,
IDataContext context = null)
{
var toast = new ToastImpl();
if (_threadManager.IsUiThread)
{
Show(content, duration, position, context, toast);
}
else
{
_threadManager.InvokeOnUiThreadAsync(() => Show(content, duration, position, context, toast));
}
return(toast);
}
public Task <MessageResult> ShowAsync(string message, string caption = "",
MessageButton button = MessageButton.Ok, MessageImage icon = MessageImage.None,
MessageResult defaultResult = MessageResult.None, IDataContext context = null)
{
var tcs = new TaskCompletionSource <MessageResult>();
if (_threadManager.IsUiThread)
{
ShowMessage(message, caption, button, tcs);
}
else
{
_threadManager.InvokeOnUiThreadAsync(() => ShowMessage(message, caption, button, tcs));
}
return(tcs.Task);
}
public IToast ShowAsync(object content, float duration, ToastPosition position = ToastPosition.Bottom,
IDataContext context = null)
{
var toast = new ToastWrapper(new TaskCompletionSource <object>(), _threadManager);
if (_threadManager.IsUiThread)
{
ShowInternal(content, duration, position, context, toast);
}
else
{
_threadManager.InvokeOnUiThreadAsync(() => ShowInternal(content, duration, position, context, toast),
OperationPriority.High);
}
return(toast);
}
private void CloseableViewModelOnClosed(object sender, ViewModelClosedEventArgs args)
{
if (_ignoreCloseFromViewModel)
{
return;
}
_threadManager.InvokeOnUiThreadAsync(() =>
{
try
{
_closedFromViewModel = true;
if (NavigationService.CanGoBack)
{
NavigationService.GoBack();
}
}
finally
{
_closedFromViewModel = false;
}
});
}
