/// <summary>
/// Initializes a new instance of the <see cref="CloneDo.Mvvm.ViewModels.TodoListViewModel"/> class.
/// </summary>
public TodoListViewModel ()
{
// Initialize
LoadTasks ();
// Commands
this.NewTaskCommand = new Command (() => {
TaskItem newTask = new TaskItem();
TaskItemViewModel vm = new TaskItemViewModel(newTask);
Navigation.PushAsync(ViewFactory.CreatePage(vm));
});
this.ReloadCommand = new Command (() => {
LoadTasks();
});
// Messages
MessagingCenter.Subscribe<TaskItemViewModel, TaskItem> (this, "TaskAdded", (sender, task) => {
LoadTasks();
});
MessagingCenter.Subscribe<TaskItemViewModel, TaskItem> (this, "TaskDeleted", (sender, task) => {
LoadTasks();
});
MessagingCenter.Subscribe<TaskCellViewModel, TaskItem> (this, "TaskSetDone", (sender, task) => {
System.Diagnostics.Debug.WriteLine("TodoListViewModel::Task set done.");
LoadTasks();
});
MessagingCenter.Subscribe<TaskCellViewModel, TaskItem> (this, "TaskTapped", (sender, task) => {
TaskTapped(task.ID);
});
MessagingCenter.Subscribe<TodoClient, TodoResponse> (this, "StatusMessage", (sender, response) => {
System.Diagnostics.Debug.WriteLine("TodoListViewModel::Status dialog here");
Navigation.DisplayAlert(response.Ok?"Success":"Error", response.Message, "Ok");
Navigation.PopToRootAsync();
});
MessagingCenter.Subscribe<TodoClient, string> (this, "ErrMessage", (sender, message) => {
Navigation.DisplayAlert("Error!", message, "Ok");
// Navigation.PopAsync();
});
}
private async void TaskTapped(int id) {
// fetch task
TaskItem fetchedTask = await App.Client.FetchTask(id);
TaskItemViewModel viewModel = new TaskItemViewModel (fetchedTask);
Navigation.PushAsync (ViewFactory.CreatePage (viewModel));
}