/// <summary>
/// Déclenche l'événement <see cref="IsBusyChanged"/>
/// </summary>
protected virtual void OnIsBusyChanged()
{
IsBusyChanged?.Invoke(this, EventArgs.Empty);
// Refresh Commands
RefreshCommand.RaiseCanExecuteChanged();
}
/// <summary>
/// Called to begin a work load block. Manages the <see cref="IsBusy"/> property and <see cref="IsBusyChanged"/> event.
/// </summary>
protected void BeginBusy()
{
_busyCount++;
if (_busyCount == 1)
{
IsBusyChanged?.Invoke(this, EventArgs.Empty);
}
}
protected virtual void OnIsBusyChanged(bool value)
{
IsBusyChanged?.Invoke(this,
new IsBusyEventArgs()
{
IsBusy = value
}
);
}
private void SetIsBusy(bool isBusy)
{
if (_isBusy != isBusy)
{
_isBusy = isBusy;
IsBusyChanged?.Invoke(this, new IsBusyEventArgs {
IsBusy = isBusy
});
}
}
/// <summary>
/// Called to end a work load block. Manages the <see cref="IsBusy"/> property and <see cref="IsBusyChanged"/> event.
/// </summary>
protected void EndBusy()
{
if (_busyCount == 0)
{
return;
}
_busyCount--;
if (_busyCount == 0)
{
IsBusyChanged?.Invoke(this, EventArgs.Empty);
}
}
private async Task DoWork(Func <Task> work)
{
try
{
IsBusy = true;
IsBusyChanged?.Invoke(this, EventArgs.Empty);
await work();
}
finally
{
IsBusy = false;
IsBusyChanged?.Invoke(this, EventArgs.Empty);
}
}
/// <summary>
/// Other viewmodels can override this if something should be done when busy
/// </summary>
protected virtual void OnIsBusyChanged()
{
IsBusyChanged?.Invoke(this, EventArgs.Empty);
}
protected virtual void OnIsBusyChanged(bool oldValue, bool newValue)
{
IsBusyChanged?.Invoke(this, EventArgs.Empty);
}
protected void OnBusyChanged(bool state)
{
IsBusyChanged?.Invoke(state);
}
protected static void OnIsBusyChanged(EventArgs e)
{
IsBusyChanged?.Invoke(null, e);
}
protected virtual void OnIsBusyChanged(EventArgs e) => IsBusyChanged?.Invoke(this, e);
