/*
 * Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 * for details. All rights reserved. Use of this source code is governed by a
 * BSD-style license that can be found in the LICENSE file.
 */
/**
 * @description Tests the htmlFor attribute and its properties.
 */
import "dart:html";
import "../../../../Utils/expect.dart";
import "../../../testcommon.dart";

main() {
  // This test mostly comes from fast/dom/HTMLElement/script-tests/class-list.js

  var container = document.createElement('div');
  document.body.append(container);

  var element;

  createElement(tokenList)
  {
    container.innerHtml = '<output for="' + tokenList + '"></output>';
    element = container.lastChild;
  }
  debug('- Tests from http://simon.html5.org/test/html/dom/reflecting/DOMTokenList/');

  // HTMLOutputElement::htmlFor setter is forwarding assignment to DOMSettableTokenList.value attribute.
  createElement('x');
  shouldBeEqualToString(element.htmlFor.value, 'x');
  shouldBeEqualToString(element.htmlFor.toString(), 'x');

  /*
  element.htmlFor = 'y';
  shouldBeEqualToString(element.htmlFor.value, 'y');
  shouldBeEqualToString(String(element.htmlFor), 'y');
  */

  // http://simon.html5.org/test/html/dom/reflecting/DOMTokenList/getting/001.htm
  createElement('');
  shouldEvaluateTo(element.htmlFor.length, 0);

  // http://simon.html5.org/test/html/dom/reflecting/DOMTokenList/getting/002.htm
  createElement('x');
  shouldEvaluateTo(element.htmlFor.length, 1);

  // http://simon.html5.org/test/html/dom/reflecting/DOMTokenList/getting/003.htm
  createElement('x x');
  shouldEvaluateTo(element.htmlFor.length, 2);

  // http://simon.html5.org/test/html/dom/reflecting/DOMTokenList/getting/004.htm
  createElement('x y');
  shouldEvaluateTo(element.htmlFor.length, 2);

  /*
  // http://simon.html5.org/test/html/dom/reflecting/DOMTokenList/getting/005.htm
  createElement('');
  element.htmlFor.add('x');
  shouldBeEqualToString(element.htmlFor.toString(), 'x');

  // http://simon.html5.org/test/html/dom/reflecting/DOMTokenList/getting/006.htm
  createElement('x');
  element.htmlFor.add('x');
  shouldBeEqualToString(element.htmlFor.toString(), 'x');

  // http://simon.html5.org/test/html/dom/reflecting/DOMTokenList/getting/007.htm
  createElement('x  x');
  element.htmlFor.add('x');
  shouldBeEqualToString(element.htmlFor.toString(), 'x  x');

  // http://simon.html5.org/test/html/dom/reflecting/DOMTokenList/getting/008.htm
  createElement('y');
  element.htmlFor.add('x');
  shouldBeEqualToString(element.htmlFor.toString(), 'y x');

  // http://simon.html5.org/test/html/dom/reflecting/DOMTokenList/getting/009.htm
  createElement('');
  element.htmlFor.remove('x');
  shouldBeEqualToString(element.htmlFor.toString(), '');

  // http://simon.html5.org/test/html/dom/reflecting/DOMTokenList/getting/010.htm
  createElement('x');
  element.htmlFor.remove('x');
  shouldBeEqualToString(element.htmlFor.toString(), '');

  // http://simon.html5.org/test/html/dom/reflecting/DOMTokenList/getting/011.htm
  createElement(' y x  y ');
  element.htmlFor.remove('x');
  shouldBeEqualToString(element.htmlFor.toString(), ' y y ');

  // http://simon.html5.org/test/html/dom/reflecting/DOMTokenList/getting/012.htm
  createElement(' x y  x ');
  element.htmlFor.remove('x');
  shouldBeEqualToString(element.htmlFor.toString(), 'y');
  */

  debug('- Ensure that we can handle empty form attribute correctly');
  element = document.createElement('output');
  var list = element.htmlFor;
  list.toggle('x');
  shouldBeEqualToString(list.value, 'x');

  list.toggle('x');
  shouldBeEqualToString(list.value, '');

  element = document.createElement('output');
  shouldBeFalse(element.htmlFor.contains('x'));
  /*
  shouldBeUndefined(element.htmlFor[1]);
  element.htmlFor.remove('x');
  element.htmlFor.add('x');
  shouldBeTrue(element.htmlFor.contains('x'));
  shouldBeUndefined(element.htmlFor[1]);
  */

  /*
  debug('- Testing add in presence of trailing white spaces.');
 
  createElement('x ');
  element.htmlFor.add('y');
  shouldBeEqualToString(element.htmlFor.toString(), 'x y');
 
  createElement('x\t');
  element.htmlFor.add('y');
  shouldBeEqualToString(element.htmlFor.toString(), 'x\ty');
 
  createElement(' ');
  element.htmlFor.add('y');
  shouldBeEqualToString(element.htmlFor.toString(), ' y');
  */

  debug('- Test invalid tokens');

  shouldThrowDomException(func, exName) =>
    shouldThrow(func, (e) => e is DomException && e.name == exName);

  createElement('x');
  shouldThrowDomException(() {
    element.htmlFor.contains('');
  }, DomException.SYNTAX);

  createElement('x y');
  shouldThrowDomException(() {
    element.htmlFor.contains('x y');
  }, DomException.INVALID_CHARACTER);

  /*
  createElement('');
  shouldThrowDomException(() {
    element.htmlFor.add('');
  }, DomException.SYNTAX);

  createElement('');
  shouldThrowDomException(() {
    element.htmlFor.add('x y');
  }, DomException.INVALID_CHARACTER);

  createElement('');
  shouldThrowDomException(() {
    element.htmlFor.remove('');
  }, DomException.SYNTAX);

  createElement('');
  shouldThrowDomException(() {
    element.htmlFor.remove('x y');
  }, DomException.INVALID_CHARACTER);
  */

  createElement('');
  shouldThrowDomException(() {
    element.htmlFor.toggle('');
  }, DomException.SYNTAX);

  createElement('x y');
  shouldThrowDomException(() {
    element.htmlFor.toggle('x y');
  }, DomException.INVALID_CHARACTER);


  debug('- Indexing');

  createElement('x');
  //shouldBeEqualToString(element.htmlFor[0], 'x');
  shouldBeEqualToString(element.htmlFor.item(0), 'x');

  createElement('x x');
  //shouldBeEqualToString(element.htmlFor[1], 'x');
  shouldBeEqualToString(element.htmlFor.item(1), 'x');

  createElement('x y');
  //shouldBeEqualToString(element.htmlFor[1], 'y');
  shouldBeEqualToString(element.htmlFor.item(1), 'y');

  createElement('');
  //shouldBeUndefined(element.htmlFor[0]);
  shouldBeNull(element.htmlFor.item(0));

  createElement('x y z');
  //shouldBeUndefined(element.htmlFor[4]);
  shouldBeNull(element.htmlFor.item(4));
  //shouldBeUndefined(element.htmlFor[-1]);  // Not a valid index so should not trigger item().
  //shouldBeNull(element.htmlFor.item(-1));

  debug('- Test case since DOMTokenList is case sensitive');

  createElement('x');
  shouldBeTrue(element.htmlFor.contains('x'));
  shouldBeFalse(element.htmlFor.contains('X'));
  shouldBeEqualToString(element.htmlFor.item(0), 'x');

  createElement('X');
  shouldBeTrue(element.htmlFor.contains('X'));
  shouldBeFalse(element.htmlFor.contains('x'));
  shouldBeEqualToString(element.htmlFor.item(0), 'X');

  debug('- Testing whitespace');
  // U+0020 SPACE, U+0009 CHARACTER TABULATION (tab), U+000A LINE FEED (LF),
  // U+000C FORM FEED (FF), and U+000D CARRIAGE RETURN (CR)

  createElement('x\u0020y');
  shouldEvaluateTo(element.htmlFor.length, 2);

  createElement('x\u0009y');
  shouldEvaluateTo(element.htmlFor.length, 2);

  createElement('x\u000Ay');
  shouldEvaluateTo(element.htmlFor.length, 2);

  createElement('x\u000Cy');
  shouldEvaluateTo(element.htmlFor.length, 2);

  createElement('x\u000Dy');
  shouldEvaluateTo(element.htmlFor.length, 2);
}