```jsx
initialState = {
  isOpen: false
};

const handleClose = () => setState({ isOpen: false });
const handleOpen = () => setState({ isOpen: true });
const handleSubmit = (feedback) => {
  console.debug(feedback);
  handleClose();
};

<div>
  <Button theme="primary" onClick={handleOpen}>Open feedback</Button>
  {
    state.isOpen ? (
      <CallFeedback
        onClose={handleClose}
        onSubmit={handleSubmit}
      />
    ) : null
  }
</div>
```