Function ng_BeginMeasureElement

src/ng_basic/basic.js:1666–1696

* Function: ng_BeginMeasureElement * Prepares element for dimension measurement. * Makes sure all parent object have proper display style. * * Syntax: * array *ng_BeginMeasureElement* (object elm) * * Parameters: * elm - object element * * Returns: * List of modi

(o)

 *  <ng_EndMeasureElement>              
 */
function ng_BeginMeasureElement(o)
{
  if((o)&&((!o.offsetHeight)||(!o.offsetWidth)))
  {
    if(typeof o.measure_info !== 'undefined') return o.measure_info;
    
    var arr = new Array();
    var p = o;
    var displaystyle=(ngIExplorer ? '' : 'inherit');
    //iterate through parent nodes
    while((p)&&(p!=document))
    {
      if(typeof p.measure_info !== 'undefined') break;
      if((p)&&(p.style)&&(p.style.display === 'none')) //if display is none save parent and change it to inherit
      {
        arr.push(p);
        p.style.display = displaystyle;
      }
      p = p.parentNode;
    }
    //compute height and width again
    var fix7=o.offsetLeft; //IE fix

    if(arr.length)
    {
      o.measure_info = arr;
      return arr;
    }    
  }
  return undefined;
}

/**
 *  Function: ng_EndMeasureElement