keyboardNavListener()

in src/js/popup.js [464:512]

• 34 lines of code
• 9 McCabe index (conditional complexity)

  keyboardNavListener(e){
    const panelSelector = Logic.getPanelSelector(Logic._panels[Logic._currentPanel]);
    const selectables = [...document.querySelectorAll(`${panelSelector} .keyboard-nav[tabindex='0']`)];
    const element = document.activeElement;
    const backButton = document.querySelector(`${panelSelector} .keyboard-nav-back`);
    const index = selectables.indexOf(element) || 0;
    function next() {
      const nextElement = selectables[index + 1];
      if (nextElement) {
        nextElement.focus();
      }
    }
    function previous() {
      const previousElement = selectables[index - 1];
      if (previousElement) {
        previousElement.focus();
      }
    }
    switch (e.keyCode) {
    case 40:
      next();
      break;
    case 38:
      previous();
      break;
    case 39:
    {
      if(element){
        element.click();
      }

      // If one Container is highlighted,
      if (element.classList.contains("keyboard-right-arrow-override")) {
        element.querySelector(".menu-right-float").click();
      }

      break;
    }
    case 37:
    {
      if(backButton){
        backButton.click();
      }
      break;
    }
    default:
      break;
    }
  },