/// <inheritdoc />
public bool Predicate(ViewModelPage viewModel)
{
if (Key.IsInterface)
{
return(Key.IsAssignableFrom(viewModel.ViewModel.GetType()));
}
return(viewModel.ViewModel.GetType().IsSubclassOf(Key));
}
/// <inheritdoc />
public bool Predicate(ViewModelPage viewModel)
{
if (Goal == null)
{
return(true);
}
return(Goal.Predicate(viewModel));
}
private async Task Navigate(object paramter, ViewModelPage view, Frame content)
{
await view.Navigate(content, paramter);
ISendMessage send = view.ViewModel;
if (send != null)
{
send.SendMessageHandler += (sender, message) => ReceiveMessage(sender, message);
}
}
/// <inheritdoc />
public bool Predicate(ViewModelPage viewModel)
{
#if wpf
if (Key.IsInterface)
{
return(Key.IsAssignableFrom(viewModel.ViewModel.GetType()));
}
return(viewModel.ViewModel.GetType().IsSubclassOf(Key));
#elif WINDOWS_UWP
return(Key.IsAssignableFrom(viewModel.ViewModel.GetType()));
#endif
}
/// <summary>
/// 跳转到页面
/// </summary>
/// <param name="paramter"></param>
/// <param name="view"></param>
/// <param name="content"></param>
/// <returns></returns>
private async Task Navigate(object paramter, ViewModelPage view, Frame content)
{
Navigating?.Invoke(this, view);
if (content == null)
{
content = Content;
}
_viewModel?.NavigatedFrom(this, null);
await view.Navigate(content, this, paramter);
_viewModel = view.ViewModel;
Navigated?.Invoke(this, view);
}
public async void Navigate(Type viewModel, object paramter)
{
_viewModel?.OnNavigatedFrom(this, null);
var send = _viewModel as ISendMessage;
if (send?.SendMessageHandler != null)
{
send.SendMessageHandler -= (sender, message) => ReceiveMessage(sender, message);
}
await Navigate(viewModel, paramter, Content);
ViewModelPage view = ViewModel.Find(temp => temp.Equals(viewModel));
_viewModel = view.ViewModel;
}
/// <summary>
/// 跳转到页面
/// </summary>
/// <param name="viewModel"></param>
/// <param name="paramter"></param>
/// <param name="content"></param>
/// <returns></returns>
public async void Navigate(Type viewModel, object paramter, Frame content = null)
{
ViewModelPage view = ViewModel.Find(temp => temp.Equals(viewModel));
await Navigate(paramter, view, content);
}
/// <summary>
/// 跳转到页面
/// </summary>
/// <param name="viewModel"></param>
/// <param name="paramter"></param>
/// <param name="content"></param>
public async void Navigate(ViewModelPage viewModel, object paramter, Frame content = null)
{
await Navigate(paramter, viewModel, content);
}
protected bool Equals(ViewModelPage other)
{
return(_viewModel == other._viewModel);
}
/// <inheritdoc />
public bool Predicate(ViewModelPage viewModel)
{
return(_predicate(viewModel));
}
