Event Support: normalize-input-event

normalize-input-event.ts

export const normalizeInputEvent = function(event: KeyboardEvent | InputEvent): CompatibleInputEvent {
  const e: CompatibleInputEvent = {
    originalEvent: event
  };

  if (event instanceof KeyboardEvent) {
    if (event.key === 'Backspace') {
      e.inputType = 'deleteContentBackward';
      e.navigationType = 'cursorLeft';
    } else if (event.key === 'Delete') {
      e.inputType = 'deleteContentForward';
    } else if (event.key.startsWith('Arrow')) {
      e.navigationType = event.key.replace('Arrow', 'cursor');
    } else {
      e.data = event.key;
      e.inputType = 'insertText';
    }
  } else {
    // @ts-ignore event.inputType is there on android - actually what we need here!
    const { inputType } = event;
    e.inputType = inputType;
    e.data = event.data;

    if (inputType === 'insertText') {
      e.navigationType = 'cursorRight';
    }
  }

  return e;
};