DirectlyManipulable

Overview

Enables an element to be manipulated with multiple simultaneous touch interactions in a natural manner.

Example: Sticker editor

Scenario: Placing stickers on a photo/video. Each sticker can be dragged, pinched, and rotated.

Interaction Sticker {
  let sticker

  func setUp(planEmitter) {
    planEmitter.addPlan(DirectlyManipulable(), to: sticker)
  }
}

Contract

Registers Draggable, Pinchable, and Rotatable to the given target. May be provided with pre-configured gesture recognizer instances. If no gesture recognizer is provided, one will be created on the target.

Plan DirectlyManipulable {
  GestureRecognizer panGestureRecognizer?
  GestureRecognizer pinchGestureRecognizer?
  GestureRecognizer rotateGestureRecognizer?
}

Performer considerations

Always emits ChangeAnchorPoint when the first gesture recognizer starts.