scrollResponderInputMeasureAndScrollToKeyboard: function()

in deprecated-react-native-listview/ScrollResponder.js [655:679]

• 19 lines of code
• 3 McCabe index (conditional complexity)

  scrollResponderInputMeasureAndScrollToKeyboard: function(
    left: number,
    top: number,
    width: number,
    height: number,
  ) {
    let keyboardScreenY = Dimensions.get('window').height;
    if (this.keyboardWillOpenTo) {
      keyboardScreenY = this.keyboardWillOpenTo.endCoordinates.screenY;
    }
    let scrollOffsetY =
      top - keyboardScreenY + height + this.additionalScrollOffset;

    // By default, this can scroll with negative offset, pulling the content
    // down so that the target component's bottom meets the keyboard's top.
    // If requested otherwise, cap the offset at 0 minimum to avoid content
    // shifting down.
    if (this.preventNegativeScrollOffset) {
      scrollOffsetY = Math.max(0, scrollOffsetY);
    }
    this.scrollResponderScrollTo({x: 0, y: scrollOffsetY, animated: true});

    this.additionalOffset = 0;
    this.preventNegativeScrollOffset = false;
  },