public void Execute()
{
if (this.isExecuting || !this.captureService.IsRecycleNeeded())
{
return;
}
this.isExecuting = true;
TimerUtility.RunSafeDelayedAction(() =>
{
this.ExecuteUnsafe();
this.isExecuting = false;
},
TimeSpan.FromMilliseconds(500),
(error) =>
{
this.isExecuting = false;
this.logger.Error("Got fatal error during Panel recycle {0}", error.ToString());
});
}
private void Viewport_NavigationCompletedImpl(int attempts = ScreenCapturePanel.DEFAULT_CAPTURE_MAX_RETRY_ATTEMPTS)
{
this.logger.Verbose($"running delayed capture with settle time of {this.appConfig.DefaultPageSettleDelay}...");
// we introduce an artificial delay before processing the capture.
// this is DUMB!, there's no definitive way to know if the page has "settled".
TimerUtility.RunDelayedAction(() =>
{
// note: removed && this.IsVisible() check here, maybe that is necessary?
if (this.requestFocus(this))
{
// delay one more tick so we give the control time to render
TimerUtility.RunSafeDelayedAction(() =>
{
this.HandleScreenCapture();
},
TimeSpan.FromMilliseconds(2000),
(error) =>
{
// HandleScreenCapture should be safe. no-op
if (this.IsCaptureInProgress)
{
this.CleanupCaptureRun(success: false);
}
});
}
else if (attempts > 0)
{
this.logger.Warn($"Panel {this.Config.PrettyName} attempting to perform screen capture, but another panel already is visible, will retry {attempts} attempts...");
// TODO: randomize the retry time?
this.Viewport_NavigationCompletedImpl(attempts - 1);
}
else
{
// could not get focus or we ran out of attempts
this.logger.Error($"Panel {this.Config.PrettyName} failed to get focus after {ScreenCapturePanel.DEFAULT_CAPTURE_MAX_RETRY_ATTEMPTS} attempts");
this.CleanupCaptureRun(success: false);
}
}, this.appConfig.DefaultPageSettleDelay);
}
