!7

static double delay = 1.0; // need 1 second hover before showing source code
static JFrame frame;
static Thread t;

p-subst-autorestart {
  onLocalMechAppend("Mouse hovers", voidfunc(fS s) {
    //infoBox(s);
    bool off = jfind(s, "no longer") >= 0;
    cancelAndInterruptThread(t);
    t = null;
    if (off) ret;
    thread {
      sleepSeconds(delay);
      TextImageAction tia = jextractSerializedObject(s, TextImageAction);
      if (tia != null && isSnippetID(tia.toolTip)) {
        S text = loadSnippet_cached(tia.toolTip);
        if (nempty(text))
          frame = showFrame(snippetWithTitle_rev(tia.toolTip), wordWrapTypeWriterTextArea(text), frame);
      }
    }
  });
}