Added optional removalInteractionVelocityThreshold value to Behavior

[Argent]

Currently, in order to change the velocity threshold for the interactive removal gesture, we need to duplicate the default code of floatingPanel:shouldRemoveAt:with like this:

func defaultFloatingPanel(_ fpc: FloatingPanelController, shouldRemoveAt location: CGPoint, with velocity: CGVector) -> Bool {
        let threshold = CGFloat(1.5) // Changed from 5.5 -> 1.5

        switch fpc.layout.position {
        case .top:
            return (velocity.dy <= -threshold)
        case .left:
            return (velocity.dx <= -threshold)
        case .bottom:
            return (velocity.dy >= threshold)
        case .right:
            return (velocity.dx >= threshold)
        }
 }

I added an optional variable removalInteractionVelocityThreshold to Behavior, which let’s the user configure the velocity threshold for the default floatingPanel:shouldRemoveAt:with implementation.

Now the only thing needed to change the threshold is this:

let behavior = FloatingPanelDefaultBehavior()
behavior.removalInteractionVelocityThreshold = 1.5
fpc.behavior = behavior

[scenee]

Thank you for your proposal 👍 I agree with the new optional variable of Behavior.

I have one request. This implementation is ok, but it's better to use Core.behaviorAdapter to proxy the default value(5.5) of FloatingPanelDefaultBehavior because it's able to remove a duplicate of the default value.

https://github.com/SCENEE/FloatingPanel/blob/fb373cc60f717f8772e2fc63644eb5b3a086772c/Sources/Core.swift#L716

[Argent]

@scenee good point, thanks for bringing it to my attention.
I adjusted the PR and added removalInteractionVelocityThreshold to BehaviorAdapter

[scenee]

Thank you for your quick response! I've merged your PR to master 👍