/*

* Copyright (C) 2007-2018 Diego Perini
* All rights reserved.
*
* this is just a small example to show
* how an extension for NWMatcher could be
* adapted to handle WebForms/HTML5 selectors
*
* Pseudo Selectors
* :default, :indeterminate, :optional, :required,
* :valid, :invalid, :in-range, :out-of-range,
* :read-only, :read-write
* :has, :matches (not yet in a defined specification)
*
*/

// for UI pseudo-classes extensions (WebForms/HTML5) NW.Dom.registerSelector(

'html5:pseudos',
/^\:(default|indeterminate|optional|required|valid|invalid|in-range|out-of-range|read-only|read-write)(.*)/,
(function(global) {

  return function(match, source) {

    var status = true,

    HTML5PseudoClasses = {
      'default': 4, 'indeterminate': 4, 'invalid': 4, 'valid': 4,
      'optional': 4, 'required': 4, 'read-write': 4, 'read-only': 4
    };

    switch (match[1]) {

      // HTML5 UI element states (form controls)
      case 'default':
        // only radio buttons, check boxes and option elements
        source = 'if(((typeof e.form!=="undefined"&&(/radio|checkbox/i).test(e.type))||/option/i.test(e.nodeName))&&(e.defaultChecked||e.defaultSelected)){' + source + '}';
        break;

      case 'indeterminate':
        // only radio buttons, check boxes and option elements
        source = 'if(typeof e.form!=="undefined"&&(/radio|checkbox/i).test(e.type)&&s.select("[checked]",e.form).length===0){' + source + '}';
        break;

      case 'optional':
        // only fields for which "required" applies
        source = 'if(typeof e.form!=="undefined"&&typeof e.required!="undefined"&&!e.required){' + source + '}';
        break;

      case 'required':
        // only fields for which "required" applies
        source = 'if(typeof e.form!=="undefined"&&typeof e.required!="undefined"&&e.required){' + source + '}';
        break;

      case 'read-write':
        // only fields for which "readOnly" applies
        source = 'if(typeof e.form!=="undefined"&&typeof e.readOnly!="undefined"&&!e.readOnly){' + source + '}';
        break;

      case 'read-only':
        // only fields for which "readOnly" applies
        source = 'if(typeof e.form!=="undefined"&&typeof e.readOnly!="undefined"&&e.readOnly){' + source + '}';
        break;

      case 'invalid':
        // only fields for which validity applies
        source = 'if(typeof e.form!=="undefined"&&typeof e.validity=="object"&&!e.validity.valid){' + source + '}';
        break;

      case 'valid':
        // only fields for which validity applies
        source = 'if(typeof e.form!=="undefined"&&typeof e.validity=="object"&&e.validity.valid){' + source + '}';
        break;

      case 'in-range':
        // only fields for which validity applies
        source = 'if(typeof e.form!=="undefined"&&' +
          '(s.getAttribute(e,"min")||s.getAttribute(e,"max"))&&' +
          'typeof e.validity=="object"&&!e.validity.typeMismatch&&' +
          '!e.validity.rangeUnderflow&&!e.validity.rangeOverflow){' + source + '}';
        break;

      case 'out-of-range':
        // only fields for which validity applies
        source = 'if(typeof e.form!=="undefined"&&' +
          '(s.getAttribute(e,"min")||s.getAttribute(e,"max"))&&' +
          'typeof e.validity=="object"&&(e.validity.rangeUnderflow||e.validity.rangeOverflow)){' + source + '}';
        break;

      default:
        status = false;
        break;

    }

    // compiler will add this to "source"
    return {
      'source': source,
      'status': status
    };

  };

})(this));