Double click on RadRibbonView causes minimize with minimization enabled

[Damian]

Hi 

Current scenario I am trying to fix is we are wanting to make use of the minimization feature, but disable the double click toggling the minimization. Limiting the minimization toggle to only the Minimize button (or a custom context menu). 

I have tried using the PreviewMouseDoubleClick event which works at a first glance, however it ends up being that a triple click will now minimize. 
Other less successful attempts are disabling minimization and only enable it before the ribbon would be minimized or un minimized. This would mean more control over when the ribbon is minimized but would require more effort in getting all aspects of the minimization working. 

Any assistance would be appreciated. It doesnt feel like too complicated of a problem but struggling with it none the less 

[Martin Ivanov]

Hello Damian,

The triple click doesn't work because the ribbonview doesn't rely on the MouseDoubleClick event. Instead, it uses the MouseLeftButtonDown event with a timer that checks the time between two clicks (500ms). To disable the minimization on tab click, you can use this information along with the PreviewMouseLeftButtonDown event of the RadRibbonTabs.

private long lastTicks;
private void RadRibbonTab_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
	bool doubleClick = false;
	var nowTicks = DateTime.Now.Ticks;
	if (nowTicks - this.lastTicks < 5000000)
	{
		doubleClick = true;
	}
	this.lastTicks = nowTicks;

	if (doubleClick)
	{

		e.Handled = true;
	}
}

I hope that helps.

Regards,
Martin Ivanov
Progress Telerik

[Luke]

Hi Martin,

Thanks for the reply, that does help but it has some side effects:

• You can no longer click between RadRibbonTab in under 500ms via single click. 
• You can no longer click on a RadRibbonTab and then click on a RadRibbonButton in under 500ms via a single click.

If you continue clicking under 500ms you can get stuck in a loop where you can't click on anything until you wait over 500ms again.

We would really love a way to disable all this enforced logic about clicking to minimise so we can leave the rest of the ribbon unaffected. The reason for us wanting to do this is some of our customers have ended up minimizing the ribbon by accident - it's quite easy to do with this odd 500ms wait detection that's included, i'm not sure that's a standard thing I've seen before in click events.

[Martin Ivanov]

It turns out that I've missed to include several important cases in the code. The first one is that this event should be attached to the RadRibbonTab's not the RadRibbonView. The other is that the code should take into account the current selection state of the tab and also if actually a RadRibbonTab is clicked and not its contents (like a button). 

Here is the updated version of the code:

private long lastTicks;
private void RadRibbonTab_PreviewMouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
{
	var clickedElement = (FrameworkElement)e.OriginalSource;
	var isTabClick = clickedElement.ParentOfType<RadRibbonTab>() != null;

	if (!isTabClick) return;

	var tab = (RadRibbonTab)sender;
	bool doubleClick = false;
	var nowTicks = DateTime.Now.Ticks;
	if (nowTicks - this.lastTicks < 5000000)
	{
		if (this.ribbonView.IsMinimized || tab.IsSelected)
		{
			doubleClick = true;
		}            
	}
	this.lastTicks = nowTicks;

	if (doubleClick)
	{
	   e.Handled = true;
	}
}

The 500ms is the default delay between two consecutive clicks that can be considered a double click in Windows OS. 

[Luke]

We will give this a go Martin! Many thanks :) 

Appreciate the quick response :)

[Luke]

This worked for us. Thanks again Martin!