public async Task <BitmapRepresentation> GetBitmap(string url)
{
if (string.IsNullOrEmpty(url))
{
return(null);
}
var result = _cache.GetOrAdd(url, async s =>
{
using (var client = new HttpClient())
using (var stream = client.GetStreamAsync(url))
using (var bitmap = (Bitmap)Image.FromStream(await stream))
return(new BitmapRepresentation(bitmap));
});
if (_cache.Count > CacheSize)
{
var victim = _cache.Keys.First(v => v != url);
_cache.TryRemove(victim, out _);
}
return((await result).Clone());
}
private void DeviceOnKeyEvent(object sender, ButtonEventArgs e)
{
if (e.IsDown)
{
var value = _pressedButtons.AddOrUpdate(e.Location, l =>
{
var result = _globalContext.Services.TimerService.RegisterTimer(_globalContext.Options.LongPressTimeout, () =>
{
DoButtonPressed(e.Location, ButtonEvent.LongPress);
_pressedButtons.TryRemove(l, out _);
}, true);
result.Start();
return(result);
},
null);
}
else
{
if (_pressedButtons.TryRemove(e.Location, out var token))
{
token.Value.Stop();
}
}
DoButtonPressed(e.Location, e.IsDown?ButtonEvent.Down:ButtonEvent.Up);
}
private void DeleteElement(CompositeLayoutElementInfo elementInfo, bool forever)
{
RemoveElement(elementInfo.Location);
if (forever)
{
_initedElements.TryRemove(elementInfo, out _);
}
}