The way to ignore a touch event on a webview is quite simple, just do :
mWebView.setOnTouchListener(new View.OnTouchListener() {
@Override
public boolean onTouch(View v, MotionEvent event) {
return false; //returns true if you wan't also ignore the js touch events
}
});
The thing is, I'm not sure the triggered event are from the webview or another view, you need to define it so you can set this same OnTouchListener on the appropriate view.