(function() {
    var TABLET_BUTTON_NAME_OFF = "SPV Off";
    var TABLET_BUTTON_NAME_ON = "SPV On";
    var tablet = Tablet.getTablet("com.highfidelity.interface.tablet.system");
    var button = tablet.addButton({
        text: TABLET_BUTTON_NAME_OFF
    });
    var isActive = false;
    
    function onClicked() {
        MyAvatar.toggleSmoothPoleVectors();
        isActive = !isActive;
        button.editProperties ({
            text : isActive ? TABLET_BUTTON_NAME_ON : TABLET_BUTTON_NAME_OFF
        });
    }
        
    button.clicked.connect(onClicked);
    
    Script.scriptEnding.connect(function () {
        if (isActive) {
            MyAvatar.toggleSmoothPoleVectors();
        }
        button.clicked.disconnect(onClicked);
        tablet.removeButton(button);
    });
    
})();