Club Drupal

var Drupal = Drupal || { 'settings': {}, 'behaviors': {}, 'locale': {} };

// Allow other JavaScript libraries to use $.

jQuery.noConflict();

(function ($) {

/**

 * Override jQuery.fn.init to guard against XSS attacks.

 *

 * See http://bugs.jquery.com/ticket/9521

 */

var jquery_init = $.fn.init;

$.fn.init = function (selector, context, rootjQuery) {

  // If the string contains a "#" before a "<", treat it as invalid HTML.

  if (selector && typeof selector === 'string') {

    var hash_position = selector.indexOf('#');

    if (hash_position >= 0) {

      var bracket_position = selector.indexOf('<');

      if (bracket_position > hash_position) {

        throw 'Syntax error, unrecognized expression: ' + selector;

      }

    }

  }

  return jquery_init.call(this, selector, context, rootjQuery);

};

$.fn.init.prototype = jquery_init.prototype;

/**

 * Attach all registered behaviors to a page element.

 *

 * Behaviors are event-triggered actions that attach to page elements, enhancing

 * default non-JavaScript UIs. Behaviors are registered in the Drupal.behaviors

 * object using the method 'attach' and optionally also 'detach' as follows:

 * @code

 *    Drupal.behaviors.behaviorName = {

 *      attach: function (context, settings) {

 *        ...

 *      },

 *      detach: function (context, settings, trigger) {

 *        ...

 *      }

 *    };

 * @endcode

 *

 * Drupal.attachBehaviors is added below to the jQuery ready event and so

 * runs on initial page load. Developers implementing AHAH/Ajax in their

 * solutions should also call this function after new page content has been

 * loaded, feeding in an element to be processed, in order to attach all

 * behaviors to the new content.

 *

 * Behaviors should use

 * @code

 *   $(selector).once('behavior-name', function () {

 *     ...

 *   });

 * @endcode

 * to ensure the behavior is attached only once to a given element. (Doing so

 * enables the reprocessing of given elements, which may be needed on occasion

 * despite the ability to limit behavior attachment to a particular element.)

 *

 * @param context

 *   An element to attach behaviors to. If none is given, the document element

 *   is used.

 * @param settings

 *   An object containing settings for the current context. If none given, the

 *   global Drupal.settings object is used.

 */

Drupal.attachBehaviors = function (context, settings) {

  context = context || document;

  settings = settings || Drupal.settings;

  // Execute all of them.

  $.each(Drupal.behaviors, function () {

    if ($.isFunction(this.attach)) {

      this.attach(context, settings);

    }

  });

};

/**

 * Detach registered behaviors from a page element.

 *

 * Developers implementing AHAH/Ajax in their solutions should call this

 * function before page content is about to be removed, feeding in an element

 * to be processed, in order to allow special behaviors to detach from the

 * content.

 *

 * Such implementations should look for the class name that was added in their

 * corresponding Drupal.behaviors.behaviorName.attach implementation, i.e.

 * behaviorName-processed, to ensure the behavior is detached only from

 * previously processed elements.

 *

 * @param context

 *   An element to detach behaviors from. If none is given, the document element

 *   is used.

 * @param settings

 *   An object containing settings for the current context. If none given, the

 *   global Drupal.settings object is used.

 * @param trigger

 *   A string containing what's causing the behaviors to be detached. The

 *   possible triggers are:

 *   - unload: (default) The context element is being removed from the DOM.

 *   - move: The element is about to be moved within the DOM (for example,

 *     during a tabledrag row swap). After the move is completed,

 *     Drupal.attachBehaviors() is called, so that the behavior can undo

 *     whatever it did in response to the move. Many behaviors won't need to

 *     do anything simply in response to the element being moved, but because

 *     IFRAME elements reload their "src" when being moved within the DOM,

 *     behaviors bound to IFRAME elements (like WYSIWYG editors) may need to

 *     take some action.

 *   - serialize: When an Ajax form is submitted, this is called with the

 *     form as the context. This provides every behavior within the form an

 *     opportunity to ensure that the field elements have correct content

 *     in them before the form is serialized. The canonical use-case is so

 *     that WYSIWYG editors can update the hidden textarea to which they are

 *     bound.

 *

 * @see Drupal.attachBehaviors

 */

Drupal.detachBehaviors = function (context, settings, trigger) {

  context = context || document;

  settings = settings || Drupal.settings;

  trigger = trigger || 'unload';

  // Execute all of them.

  $.each(Drupal.behaviors, function () {

    if ($.isFunction(this.detach)) {

      this.detach(context, settings, trigger);

    }

  });

};

/**

 * Encode special characters in a plain-text string for display as HTML.

 *

 * @ingroup sanitization

 */

Drupal.checkPlain = function (str) {

  var character, regex,

      replace = { '&': '&amp;', '"': '&quot;', '<': '&lt;', '>': '&gt;' };

  str = String(str);

  for (character in replace) {

    if (replace.hasOwnProperty(character)) {

      regex = new RegExp(character, 'g');

      str = str.replace(regex, replace[character]);

    }

  }

  return str;

};

/**

 * Replace placeholders with sanitized values in a string.

 *

 * @param str

 *   A string with placeholders.

 * @param args

 *   An object of replacements pairs to make. Incidences of any key in this

 *   array are replaced with the corresponding value. Based on the first

 *   character of the key, the value is escaped and/or themed:

 *    - !variable: inserted as is

 *    - @variable: escape plain text to HTML (Drupal.checkPlain)

 *    - %variable: escape text and theme as a placeholder for user-submitted

 *      content (checkPlain + Drupal.theme('placeholder'))

 *

 * @see Drupal.t()

 * @ingroup sanitization

 */

Drupal.formatString = function(str, args) {

  // Transform arguments before inserting them.

  for (var key in args) {

    switch (key.charAt(0)) {

      // Escaped only.

      case '@':

        args[key] = Drupal.checkPlain(args[key]);

      break;

      // Pass-through.

      case '!':

        break;

      // Escaped and placeholder.

      case '%':

      default:

        args[key] = Drupal.theme('placeholder', args[key]);

        break;

    }

    str = str.replace(key, args[key]);

  }

  return str;

};

/**

 * Translate strings to the page language or a given language.

 *

 * See the documentation of the server-side t() function for further details.

 *

 * @param str

 *   A string containing the English string to translate.

 * @param args

 *   An object of replacements pairs to make after translation. Incidences

 *   of any key in this array are replaced with the corresponding value.

 *   See Drupal.formatString().

 *

 * @param options

 *   - 'context' (defaults to the empty context): The context the source string

 *     belongs to.

 *

 * @return

 *   The translated string.

 */

Drupal.t = function (str, args, options) {

  options = options || {};

  options.context = options.context || '';

  // Fetch the localized version of the string.

  if (Drupal.locale.strings && Drupal.locale.strings[options.context] && Drupal.locale.strings[options.context][str]) {

    str = Drupal.locale.strings[options.context][str];

  }

  if (args) {

    str = Drupal.formatString(str, args);

  }

  return str;

};

/**

 * Format a string containing a count of items.

 *

 * This function ensures that the string is pluralized correctly. Since Drupal.t() is

 * called by this function, make sure not to pass already-localized strings to it.

 *

 * See the documentation of the server-side format_plural() function for further details.

 *

 * @param count

 *   The item count to display.

 * @param singular

 *   The string for the singular case. Please make sure it is clear this is

 *   singular, to ease translation (e.g. use "1 new comment" instead of "1 new").

 *   Do not use @count in the singular string.

 * @param plural

 *   The string for the plural case. Please make sure it is clear this is plural,

 *   to ease translation. Use @count in place of the item count, as in "@count

 *   new comments".

 * @param args

 *   An object of replacements pairs to make after translation. Incidences

 *   of any key in this array are replaced with the corresponding value.

 *   See Drupal.formatString().

 *   Note that you do not need to include @count in this array.

 *   This replacement is done automatically for the plural case.

 * @param options

 *   The options to pass to the Drupal.t() function.

 * @return

 *   A translated string.

 */

Drupal.formatPlural = function (count, singular, plural, args, options) {

  var args = args || {};

  args['@count'] = count;

  // Determine the index of the plural form.

  var index = Drupal.locale.pluralFormula ? Drupal.locale.pluralFormula(args['@count']) : ((args['@count'] == 1) ? 0 : 1);

  if (index == 0) {

    return Drupal.t(singular, args, options);

  }

  else if (index == 1) {

    return Drupal.t(plural, args, options);

  }

  else {

    args['@count[' + index + ']'] = args['@count'];

    delete args['@count'];

    return Drupal.t(plural.replace('@count', '@count[' + index + ']'), args, options);

  }

};

/**

 * Generate the themed representation of a Drupal object.

 *

 * All requests for themed output must go through this function. It examines

 * the request and routes it to the appropriate theme function. If the current

 * theme does not provide an override function, the generic theme function is

 * called.

 *

 * For example, to retrieve the HTML for text that should be emphasized and

 * displayed as a placeholder inside a sentence, call

 * Drupal.theme('placeholder', text).

 *

 * @param func

 *   The name of the theme function to call.

 * @param ...

 *   Additional arguments to pass along to the theme function.

 * @return

 *   Any data the theme function returns. This could be a plain HTML string,

 *   but also a complex object.

 */

Drupal.theme = function (func) {

  var args = Array.prototype.slice.apply(arguments, [1]);

  return (Drupal.theme[func] || Drupal.theme.prototype[func]).apply(this, args);

};

/**

 * Freeze the current body height (as minimum height). Used to prevent

 * unnecessary upwards scrolling when doing DOM manipulations.

 */

Drupal.freezeHeight = function () {

  Drupal.unfreezeHeight();

  $('<div id="freeze-height"></div>').css({

    position: 'absolute',

    top: '0px',

    left: '0px',

    width: '1px',

    height: $('body').css('height')

  }).appendTo('body');

};

/**

 * Unfreeze the body height.

 */

Drupal.unfreezeHeight = function () {

  $('#freeze-height').remove();

};

/**

 * Encodes a Drupal path for use in a URL.

 *

 * For aesthetic reasons slashes are not escaped.

 */

Drupal.encodePath = function (item, uri) {

  uri = uri || location.href;

  return encodeURIComponent(item).replace(/%2F/g, '/');

};

/**

 * Get the text selection in a textarea.

 */

Drupal.getSelection = function (element) {

  if (typeof element.selectionStart != 'number' && document.selection) {

    // The current selection.

    var range1 = document.selection.createRange();

    var range2 = range1.duplicate();

    // Select all text.

    range2.moveToElementText(element);

    // Now move 'dummy' end point to end point of original range.

    range2.setEndPoint('EndToEnd', range1);

    // Now we can calculate start and end points.

    var start = range2.text.length - range1.text.length;

    var end = start + range1.text.length;

    return { 'start': start, 'end': end };

  }

  return { 'start': element.selectionStart, 'end': element.selectionEnd };

};

/**

 * Build an error message from an Ajax response.

 */

Drupal.ajaxError = function (xmlhttp, uri) {

  var statusCode, statusText, pathText, responseText, readyStateText, message;

  if (xmlhttp.status) {

    statusCode = "\n" + Drupal.t("An AJAX HTTP error occurred.") +  "\n" + Drupal.t("HTTP Result Code: !status", {'!status': xmlhttp.status});

  }

  else {

    statusCode = "\n" + Drupal.t("An AJAX HTTP request terminated abnormally.");

  }

  statusCode += "\n" + Drupal.t("Debugging information follows.");

  pathText = "\n" + Drupal.t("Path: !uri", {'!uri': uri} );

  statusText = '';

  // In some cases, when statusCode == 0, xmlhttp.statusText may not be defined.

  // Unfortunately, testing for it with typeof, etc, doesn't seem to catch that

  // and the test causes an exception. So we need to catch the exception here.

  try {

    statusText = "\n" + Drupal.t("StatusText: !statusText", {'!statusText': $.trim(xmlhttp.statusText)});

  }

  catch (e) {}

  responseText = '';

  // Again, we don't have a way to know for sure whether accessing

  // xmlhttp.responseText is going to throw an exception. So we'll catch it.

  try {

    responseText = "\n" + Drupal.t("ResponseText: !responseText", {'!responseText': $.trim(xmlhttp.responseText) } );

  } catch (e) {}

  // Make the responseText more readable by stripping HTML tags and newlines.

  responseText = responseText.replace(/<("[^"]*"|'[^']*'|[^'">])*>/gi,"");

  responseText = responseText.replace(/[\n]+\s+/g,"\n");

  // We don't need readyState except for status == 0.

  readyStateText = xmlhttp.status == 0 ? ("\n" + Drupal.t("ReadyState: !readyState", {'!readyState': xmlhttp.readyState})) : "";

  message = statusCode + pathText + statusText + responseText + readyStateText;

  return message;

};

// Class indicating that JS is enabled; used for styling purpose.

$('html').addClass('js');

// 'js enabled' cookie.

document.cookie = 'has_js=1; path=/';

/**

 * Additions to jQuery.support.

 */

$(function () {

  /**

   * Boolean indicating whether or not position:fixed is supported.

   */

  if (jQuery.support.positionFixed === undefined) {

    var el = $('<div style="position:fixed; top:10px" />').appendTo(document.body);

    jQuery.support.positionFixed = el[0].offsetTop === 10;

    el.remove();

  }

});

//Attach all behaviors.

$(function () {

  Drupal.attachBehaviors(document, Drupal.settings);

});

/**

 * The default themes.

 */

Drupal.theme.prototype = {

  /**

   * Formats text for emphasized display in a placeholder inside a sentence.

   *

   * @param str

   *   The text to format (plain-text).

   * @return

   *   The formatted text (html).

   */

  placeholder: function (str) {

    return '<em class="placeholder">' + Drupal.checkPlain(str) + '</em>';

  }

};

})(jQuery);