How to set default button and global variables?

How to set default button and global variables?

• Joseph Stalin

  Could be a Sonic bug (does it work on HDiSim )

  Also remember that you MUST set the XPath variable in your markupLoadedHandler, otherwise the markup engine will crash on all players due to an undeclared variable.

  
  
  

• upgraders

  Easiest thing to do is to remember who has the focus when you leave one menu, and store it in a variable. Then when you load a page, use a simple animation to set the focus correctly:

  // When leaving the page:
  var focusedButton = GetFocusedButton();
  if (focusedButton != null)
  resumeFocusId = focusedButton.core.id;

  // When loading the page (ie, setMarkupLoadedHandler)
  document.setXPathVariable("ResumeFocus", String(resumeFocusId));

  // Helper function
  function GetFocusedButton()
  {
  try {
  var elementList = document.evaluateXPath("//button[state:focused()]", document);
  if (elementList != null && elementList.length > 0)
  return elementList[0];
  } catch(ex) { }

  return null;
  }

  <!-- In the markup -->
  <cue select="id($ResumeFocus)" dur="0.5s">
  <set state:focused="true" />
  </cue>

  Script globals cannot be shared across applications; to do that you need either use GPRMs or have a PlaylistApplication that stores information and then uses events to coordinate back and forth with the other applications.

  
  
  

• David_JS

  Thank you. I followed your instruction but always having error on

  <cue select="id($ResumeFocus)" dur="0.5s">
  <set state:focused="true" />
  </cue>

  The error message on Sonic debug utility is "SetNode: Trying to <set> with an empty default node set."

  I couldn't see anything wrong from the code.

  
  
• How to set default button and global variables?