Develop branch - should component update refactor

[pietrop]

Is your Pull Request request related to another issue in this repository ?

#160

Describe what the PR does

see
#160 (comment)
#160 (comment)

State whether the PR is ready for review or whether it needs extra work

Ready for review (cc @jamesdools )

Additional context

NA

[pietrop]

hesitant to do MediaPlayer coz the props and state attributes are compared against each other, because of the nature of the inner working of the component.

  shouldComponentUpdate(nextProps, nextState) {
    if (nextProps.rollBackValueInSeconds !== this.state.rollBackValueInSeconds) {
      return true;
    }
    if (nextProps.timecodeOffset !== this.state.timecodeOffset) {
      return true;
    }
    // TODO: workaround to keep the hook functions, only call re-renders
    // if current time has changed. And it seems eliminate component's unecessary re-renders.
    if (nextProps.currentTime !== this.props.currentTime) {
      return true;
    }

    if (nextState.playbackRate !== this.state.playbackRate) {
      return true;
    }

    if (nextProps.mediaDuration !== this.props.mediaDuration ) {
      return true;
    }

    if (nextState.isMute !== this.state.isMute) {
      return true;
    }

    return false;
  }