(function ($) {
  Drupal.viewsSlideshow = Drupal.viewsSlideshow || {};

  /**
   * Views Slideshow Controls
   */
  Drupal.viewsSlideshowControls = Drupal.viewsSlideshowControls || {};

  /**
   * Implement the play hook for controls.
   */
  Drupal.viewsSlideshowControls.play = function (options) {
    // Route the control call to the correct control type.
    // Need to use try catch so we don't have to check to make sure every part
    // of the object is defined.
    try {
      if (typeof Drupal.settings.viewsSlideshowControls[options.slideshowID].top.type != "undefined" && typeof Drupal[Drupal.settings.viewsSlideshowControls[options.slideshowID].top.type].play == 'function') {
        Drupal[Drupal.settings.viewsSlideshowControls[options.slideshowID].top.type].play(options);
      }
    }
    catch(err) {
      // Don't need to do anything on error.
    }

    try {
      if (typeof Drupal.settings.viewsSlideshowControls[options.slideshowID].bottom.type != "undefined" && typeof Drupal[Drupal.settings.viewsSlideshowControls[options.slideshowID].bottom.type].play == 'function') {
        Drupal[Drupal.settings.viewsSlideshowControls[options.slideshowID].bottom.type].play(options);
      }
    }
    catch(err) {
      // Don't need to do anything on error.
    }
  };

  /**
   * Implement the pause hook for controls.
   */
  Drupal.viewsSlideshowControls.pause = function (options) {
    // Route the control call to the correct control type.
    // Need to use try catch so we don't have to check to make sure every part
    // of the object is defined.
    try {
      if (typeof Drupal.settings.viewsSlideshowControls[options.slideshowID].top.type != "undefined" && typeof Drupal[Drupal.settings.viewsSlideshowControls[options.slideshowID].top.type].pause == 'function') {
        Drupal[Drupal.settings.viewsSlideshowControls[options.slideshowID].top.type].pause(options);
      }
    }
    catch(err) {
      // Don't need to do anything on error.
    }

    try {
      if (typeof Drupal.settings.viewsSlideshowControls[options.slideshowID].bottom.type != "undefined" && typeof Drupal[Drupal.settings.viewsSlideshowControls[options.slideshowID].bottom.type].pause == 'function') {
        Drupal[Drupal.settings.viewsSlideshowControls[options.slideshowID].bottom.type].pause(options);
      }
    }
    catch(err) {
      // Don't need to do anything on error.
    }
  };


  /**
   * Views Slideshow Text Controls
   */

  // Add views slieshow api calls for views slideshow text controls.
  Drupal.behaviors.viewsSlideshowControlsText = {
    attach: function (context) {

      // Process previous link
      $('.views_slideshow_controls_text_previous:not(.views-slideshow-controls-text-previous-processed)', context).addClass('views-slideshow-controls-text-previous-processed').each(function() {
        var uniqueID = $(this).attr('id').replace('views_slideshow_controls_text_previous_', '');
        $(this).click(function() {
          Drupal.viewsSlideshow.action({ "action": 'previousSlide', "slideshowID": uniqueID });
          return false;
        });
      });

      // Process next link
      $('.views_slideshow_controls_text_next:not(.views-slideshow-controls-text-next-processed)', context).addClass('views-slideshow-controls-text-next-processed').each(function() {
        var uniqueID = $(this).attr('id').replace('views_slideshow_controls_text_next_', '');
        $(this).click(function() {
          Drupal.viewsSlideshow.action({ "action": 'nextSlide', "slideshowID": uniqueID });
          return false;
        });
      });

      // Process pause link
      $('.views_slideshow_controls_text_pause:not(.views-slideshow-controls-text-pause-processed)', context).addClass('views-slideshow-controls-text-pause-processed').each(function() {
        var uniqueID = $(this).attr('id').replace('views_slideshow_controls_text_pause_', '');
        $(this).click(function() {
          if (Drupal.settings.viewsSlideshow[uniqueID].paused) {
            Drupal.viewsSlideshow.action({ "action": 'play', "slideshowID": uniqueID, "force": true });
          }
          else {
            Drupal.viewsSlideshow.action({ "action": 'pause', "slideshowID": uniqueID, "force": true });
          }
          return false;
        });
      });
    }
  };

  Drupal.viewsSlideshowControlsText = Drupal.viewsSlideshowControlsText || {};

  /**
   * Implement the pause hook for text controls.
   */
  Drupal.viewsSlideshowControlsText.pause = function (options) {
    var pauseText = Drupal.theme.prototype['viewsSlideshowControlsPause'] ? Drupal.theme('viewsSlideshowControlsPause') : '';
    $('#views_slideshow_controls_text_pause_' + options.slideshowID + ' a').text(pauseText);
  };

  /**
   * Implement the play hook for text controls.
   */
  Drupal.viewsSlideshowControlsText.play = function (options) {
    var playText = Drupal.theme.prototype['viewsSlideshowControlsPlay'] ? Drupal.theme('viewsSlideshowControlsPlay') : '';
    $('#views_slideshow_controls_text_pause_' + options.slideshowID + ' a').text(playText);
  };

  // Theme the resume control.
  Drupal.theme.prototype.viewsSlideshowControlsPause = function () {
    return Drupal.t('Resume');
  };

  // Theme the pause control.
  Drupal.theme.prototype.viewsSlideshowControlsPlay = function () {
    return Drupal.t('Pause');
  };

  /**
   * Views Slideshow Pager
   */
  Drupal.viewsSlideshowPager = Drupal.viewsSlideshowPager || {};

  /**
   * Implement the transitionBegin hook for pagers.
   */
  Drupal.viewsSlideshowPager.transitionBegin = function (options) {
    // Route the pager call to the correct pager type.
    // Need to use try catch so we don't have to check to make sure every part
    // of the object is defined.
    try {
      if (typeof Drupal.settings.viewsSlideshowPager[options.slideshowID].top.type != "undefined" && typeof Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].top.type].transitionBegin == 'function') {
        Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].top.type].transitionBegin(options);
      }
    }
    catch(err) {
      // Don't need to do anything on error.
    }

    try {
      if (typeof Drupal.settings.viewsSlideshowPager[options.slideshowID].bottom.type != "undefined" && typeof Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].bottom.type].transitionBegin == 'function') {
        Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].bottom.type].transitionBegin(options);
      }
    }
    catch(err) {
      // Don't need to do anything on error.
    }
  };

  /**
   * Implement the goToSlide hook for pagers.
   */
  Drupal.viewsSlideshowPager.goToSlide = function (options) {
    // Route the pager call to the correct pager type.
    // Need to use try catch so we don't have to check to make sure every part
    // of the object is defined.
    try {
      if (typeof Drupal.settings.viewsSlideshowPager[options.slideshowID].top.type != "undefined" && typeof Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].top.type].goToSlide == 'function') {
        Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].top.type].goToSlide(options);
      }
    }
    catch(err) {
      // Don't need to do anything on error.
    }

    try {
      if (typeof Drupal.settings.viewsSlideshowPager[options.slideshowID].bottom.type != "undefined" && typeof Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].bottom.type].goToSlide == 'function') {
        Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].bottom.type].goToSlide(options);
      }
    }
    catch(err) {
      // Don't need to do anything on error.
    }
  };

  /**
   * Implement the previousSlide hook for pagers.
   */
  Drupal.viewsSlideshowPager.previousSlide = function (options) {
    // Route the pager call to the correct pager type.
    // Need to use try catch so we don't have to check to make sure every part
    // of the object is defined.
    try {
      if (typeof Drupal.settings.viewsSlideshowPager[options.slideshowID].top.type != "undefined" && typeof Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].top.type].previousSlide == 'function') {
        Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].top.type].previousSlide(options);
      }
    }
    catch(err) {
      // Don't need to do anything on error.
    }

    try {
      if (typeof Drupal.settings.viewsSlideshowPager[options.slideshowID].bottom.type != "undefined" && typeof Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].bottom.type].previousSlide == 'function') {
        Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].bottom.type].previousSlide(options);
      }
    }
    catch(err) {
      // Don't need to do anything on error.
    }
  };

  /**
   * Implement the nextSlide hook for pagers.
   */
  Drupal.viewsSlideshowPager.nextSlide = function (options) {
    // Route the pager call to the correct pager type.
    // Need to use try catch so we don't have to check to make sure every part
    // of the object is defined.
    try {
      if (typeof Drupal.settings.viewsSlideshowPager[options.slideshowID].top.type != "undefined" && typeof Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].top.type].nextSlide == 'function') {
        Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].top.type].nextSlide(options);
      }
    }
    catch(err) {
      // Don't need to do anything on error.
    }

    try {
      if (typeof Drupal.settings.viewsSlideshowPager[options.slideshowID].bottom.type != "undefined" && typeof Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].bottom.type].nextSlide == 'function') {
        Drupal[Drupal.settings.viewsSlideshowPager[options.slideshowID].bottom.type].nextSlide(options);
      }
    }
    catch(err) {
      // Don't need to do anything on error.
    }
  };


  /**
   * Views Slideshow Pager Fields
   */

  // Add views slieshow api calls for views slideshow pager fields.
  Drupal.behaviors.viewsSlideshowPagerFields = {
    attach: function (context) {
      // Process pause on hover.
      $('.views_slideshow_pager_field:not(.views-slideshow-pager-field-processed)', context).addClass('views-slideshow-pager-field-processed').each(function() {
        // Parse out the location and unique id from the full id.
        var pagerInfo = $(this).attr('id').split('_');
        var location = pagerInfo[2];
        pagerInfo.splice(0, 3);
        var uniqueID = pagerInfo.join('_');

        // Add the activate and pause on pager hover event to each pager item.
        if (Drupal.settings.viewsSlideshowPagerFields[uniqueID][location].activatePauseOnHover) {
          $(this).children().each(function(index, pagerItem) {
            var mouseIn = function() {
              Drupal.viewsSlideshow.action({ "action": 'goToSlide', "slideshowID": uniqueID, "slideNum": index });
              Drupal.viewsSlideshow.action({ "action": 'pause', "slideshowID": uniqueID });
            }
            
            var mouseOut = function() {
              Drupal.viewsSlideshow.action({ "action": 'play', "slideshowID": uniqueID });
            }
          
            if (jQuery.fn.hoverIntent) {
              $(pagerItem).hoverIntent(mouseIn, mouseOut);
            }
            else {
              $(pagerItem).hover(mouseIn, mouseOut);
            }
            
          });
        }
        else {
          $(this).children().each(function(index, pagerItem) {
            $(pagerItem).click(function() {
              Drupal.viewsSlideshow.action({ "action": 'goToSlide', "slideshowID": uniqueID, "slideNum": index });
            });
          });
        }
      });
    }
  };

  Drupal.viewsSlideshowPagerFields = Drupal.viewsSlideshowPagerFields || {};

  /**
   * Implement the transitionBegin hook for pager fields pager.
   */
  Drupal.viewsSlideshowPagerFields.transitionBegin = function (options) {
    for (pagerLocation in Drupal.settings.viewsSlideshowPager[options.slideshowID]) {
      // Remove active class from pagers
      $('[id^="views_slideshow_pager_field_item_' + pagerLocation + '_' + options.slideshowID + '"]').removeClass('active');

      // Add active class to active pager.
      $('#views_slideshow_pager_field_item_'+ pagerLocation + '_' + options.slideshowID + '_' + options.slideNum).addClass('active');
    }

  };

  /**
   * Implement the goToSlide hook for pager fields pager.
   */
  Drupal.viewsSlideshowPagerFields.goToSlide = function (options) {
    for (pagerLocation in Drupal.settings.viewsSlideshowPager[options.slideshowID]) {
      // Remove active class from pagers
      $('[id^="views_slideshow_pager_field_item_' + pagerLocation + '_' + options.slideshowID + '"]').removeClass('active');

      // Add active class to active pager.
      $('#views_slideshow_pager_field_item_' + pagerLocation + '_' + options.slideshowID + '_' + options.slideNum).addClass('active');
    }
  };

  /**
   * Implement the previousSlide hook for pager fields pager.
   */
  Drupal.viewsSlideshowPagerFields.previousSlide = function (options) {
    for (pagerLocation in Drupal.settings.viewsSlideshowPager[options.slideshowID]) {
      // Get the current active pager.
      var pagerNum = $('[id^="views_slideshow_pager_field_item_' + pagerLocation + '_' + options.slideshowID + '"].active').attr('id').replace('views_slideshow_pager_field_item_' + pagerLocation + '_' + options.slideshowID + '_', '');

      // If we are on the first pager then activate the last pager.
      // Otherwise activate the previous pager.
      if (pagerNum == 0) {
        pagerNum = $('[id^="views_slideshow_pager_field_item_' + pagerLocation + '_' + options.slideshowID + '"]').length() - 1;
      }
      else {
        pagerNum--;
      }

      // Remove active class from pagers
      $('[id^="views_slideshow_pager_field_item_' + pagerLocation + '_' + options.slideshowID + '"]').removeClass('active');

      // Add active class to active pager.
      $('#views_slideshow_pager_field_item_' + pagerLocation + '_' + options.slideshowID + '_' + pagerNum).addClass('active');
    }
  };

  /**
   * Implement the nextSlide hook for pager fields pager.
   */
  Drupal.viewsSlideshowPagerFields.nextSlide = function (options) {
    for (pagerLocation in Drupal.settings.viewsSlideshowPager[options.slideshowID]) {
      // Get the current active pager.
      var pagerNum = $('[id^="views_slideshow_pager_field_item_' + pagerLocation + '_' + options.slideshowID + '"].active').attr('id').replace('views_slideshow_pager_field_item_' + pagerLocation + '_' + options.slideshowID + '_', '');
      var totalPagers = $('[id^="views_slideshow_pager_field_item_' + pagerLocation + '_' + options.slideshowID + '"]').length();

      // If we are on the last pager then activate the first pager.
      // Otherwise activate the next pager.
      pagerNum++;
      if (pagerNum == totalPagers) {
        pagerNum = 0;
      }

      // Remove active class from pagers
      $('[id^="views_slideshow_pager_field_item_' + pagerLocation + '_' + options.slideshowID + '"]').removeClass('active');

      // Add active class to active pager.
      $('#views_slideshow_pager_field_item_' + pagerLocation + '_' + options.slideshowID + '_' + slideNum).addClass('active');
    }
  };


  /**
   * Views Slideshow Slide Counter
   */

  Drupal.viewsSlideshowSlideCounter = Drupal.viewsSlideshowSlideCounter || {};

  /**
   * Implement the transitionBegin for the slide counter.
   */
  Drupal.viewsSlideshowSlideCounter.transitionBegin = function (options) {
    $('#views_slideshow_slide_counter_' + options.slideshowID + ' .num').text(options.slideNum + 1);
  };

  /**
   * This is used as a router to process actions for the slideshow.
   */
  Drupal.viewsSlideshow.action = function (options) {
    // Set default values for our return status.
    var status = {
      'value': true,
      'text': ''
    }

    // If an action isn't specified return false.
    if (typeof options.action == 'undefined' || options.action == '') {
      status.value = false;
      status.text =  Drupal.t('There was no action specified.');
      return error;
    }

    // If we are using pause or play switch paused state accordingly.
    if (options.action == 'pause') {
      Drupal.settings.viewsSlideshow[options.slideshowID].paused = 1;
      // If the calling method is forcing a pause then mark it as such.
      if (options.force) {
        Drupal.settings.viewsSlideshow[options.slideshowID].pausedForce = 1;
      }
    }
    else if (options.action == 'play') {
      // If the slideshow isn't forced pause or we are forcing a play then play
      // the slideshow.
      // Otherwise return telling the calling method that it was forced paused.
      if (!Drupal.settings.viewsSlideshow[options.slideshowID].pausedForce || options.force) {
        Drupal.settings.viewsSlideshow[options.slideshowID].paused = 0;
        Drupal.settings.viewsSlideshow[options.slideshowID].pausedForce = 0;
      }
      else {
        status.value = false;
        status.text += ' ' + Drupal.t('This slideshow is forced paused.');
        return status;
      }
    }

    // We use a switch statement here mainly just to limit the type of actions
    // that are available.
    switch (options.action) {
      case "goToSlide":
      case "transitionBegin":
      case "transitionEnd":
        // The three methods above require a slide number. Checking if it is
        // defined and it is a number that is an integer.
        if (typeof options.slideNum == 'undefined' || typeof options.slideNum !== 'number' || parseInt(options.slideNum) != (options.slideNum - 0)) {
          status.value = false;
          status.text = Drupal.t('An invalid integer was specified for slideNum.');
        }
      case "pause":
      case "play":
      case "nextSlide":
      case "previousSlide":
        // Grab our list of methods.
        var methods = Drupal.settings.viewsSlideshow[options.slideshowID]['methods'];

        // if the calling method specified methods that shouldn't be called then
        // exclude calling them.
        var excludeMethodsObj = {};
        if (typeof options.excludeMethods !== 'undefined') {
          // We need to turn the excludeMethods array into an object so we can use the in
          // function.
          for (var i=0; i < excludeMethods.length; i++) {
            excludeMethodsObj[excludeMethods[i]] = '';
          }
        }

        // Call every registered method and don't call excluded ones.
        for (i = 0; i < methods[options.action].length; i++) {
          if (Drupal[methods[options.action][i]] != undefined && typeof Drupal[methods[options.action][i]][options.action] == 'function' && !(methods[options.action][i] in excludeMethodsObj)) {
            Drupal[methods[options.action][i]][options.action](options);
          }
        }
        break;

      // If it gets here it's because it's an invalid action.
      default:
        status.value = false;
        status.text = Drupal.t('An invalid action "!action" was specified.', { "!action": options.action });
    }
    return status;
  };
})(jQuery);
;
/**
 * @file
 * Some basic behaviors and utility functions for Views.
 */
(function ($) {

Drupal.Views = {};

/**
 * jQuery UI tabs, Views integration component
 */
Drupal.behaviors.viewsTabs = {
  attach: function (context) {
    if ($.viewsUi && $.viewsUi.tabs) {
      $('#views-tabset').once('views-processed').viewsTabs({
        selectedClass: 'active'
      });
    }

    $('a.views-remove-link').once('views-processed').click(function(event) {
      var id = $(this).attr('id').replace('views-remove-link-', '');
      $('#views-row-' + id).hide();
      $('#views-removed-' + id).attr('checked', true);
      event.preventDefault();
   });
  /**
    * Here is to handle display deletion
    * (checking in the hidden checkbox and hiding out the row)
    */
  $('a.display-remove-link')
    .addClass('display-processed')
    .click(function() {
      var id = $(this).attr('id').replace('display-remove-link-', '');
      $('#display-row-' + id).hide();
      $('#display-removed-' + id).attr('checked', true);
      return false;
  });
  }
};

/**
 * Helper function to parse a querystring.
 */
Drupal.Views.parseQueryString = function (query) {
  var args = {};
  var pos = query.indexOf('?');
  if (pos != -1) {
    query = query.substring(pos + 1);
  }
  var pairs = query.split('&');
  for(var i in pairs) {
    if (typeof(pairs[i]) == 'string') {
      var pair = pairs[i].split('=');
      // Ignore the 'q' path argument, if present.
      if (pair[0] != 'q' && pair[1]) {
        args[decodeURIComponent(pair[0].replace(/\+/g, ' '))] = decodeURIComponent(pair[1].replace(/\+/g, ' '));
      }
    }
  }
  return args;
};

/**
 * Helper function to return a view's arguments based on a path.
 */
Drupal.Views.parseViewArgs = function (href, viewPath) {
  var returnObj = {};
  var path = Drupal.Views.getPath(href);
  // Ensure we have a correct path.
  if (viewPath && path.substring(0, viewPath.length + 1) == viewPath + '/') {
    var args = decodeURIComponent(path.substring(viewPath.length + 1, path.length));
    returnObj.view_args = args;
    returnObj.view_path = path;
  }
  return returnObj;
};

/**
 * Strip off the protocol plus domain from an href.
 */
Drupal.Views.pathPortion = function (href) {
  // Remove e.g. http://example.com if present.
  var protocol = window.location.protocol;
  if (href.substring(0, protocol.length) == protocol) {
    // 2 is the length of the '//' that normally follows the protocol
    href = href.substring(href.indexOf('/', protocol.length + 2));
  }
  return href;
};

/**
 * Return the Drupal path portion of an href.
 */
Drupal.Views.getPath = function (href) {
  href = Drupal.Views.pathPortion(href);
  href = href.substring(Drupal.settings.basePath.length, href.length);
  // 3 is the length of the '?q=' added to the url without clean urls.
  if (href.substring(0, 3) == '?q=') {
    href = href.substring(3, href.length);
  }
  var chars = ['#', '?', '&'];
  for (i in chars) {
    if (href.indexOf(chars[i]) > -1) {
      href = href.substr(0, href.indexOf(chars[i]));
    }
  }
  return href;
};

})(jQuery);
;
(function ($) {

/**
 * A progressbar object. Initialized with the given id. Must be inserted into
 * the DOM afterwards through progressBar.element.
 *
 * method is the function which will perform the HTTP request to get the
 * progress bar state. Either "GET" or "POST".
 *
 * e.g. pb = new progressBar('myProgressBar');
 *      some_element.appendChild(pb.element);
 */
Drupal.progressBar = function (id, updateCallback, method, errorCallback) {
  var pb = this;
  this.id = id;
  this.method = method || 'GET';
  this.updateCallback = updateCallback;
  this.errorCallback = errorCallback;

  // The WAI-ARIA setting aria-live="polite" will announce changes after users
  // have completed their current activity and not interrupt the screen reader.
  this.element = $('<div class="progress" aria-live="polite"></div>').attr('id', id);
  this.element.html('<div class="bar"><div class="filled"></div></div>' +
                    '<div class="percentage"></div>' +
                    '<div class="message">&nbsp;</div>');
};

/**
 * Set the percentage and status message for the progressbar.
 */
Drupal.progressBar.prototype.setProgress = function (percentage, message) {
  if (percentage >= 0 && percentage <= 100) {
    $('div.filled', this.element).css('width', percentage + '%');
    $('div.percentage', this.element).html(percentage + '%');
  }
  $('div.message', this.element).html(message);
  if (this.updateCallback) {
    this.updateCallback(percentage, message, this);
  }
};

/**
 * Start monitoring progress via Ajax.
 */
Drupal.progressBar.prototype.startMonitoring = function (uri, delay) {
  this.delay = delay;
  this.uri = uri;
  this.sendPing();
};

/**
 * Stop monitoring progress via Ajax.
 */
Drupal.progressBar.prototype.stopMonitoring = function () {
  clearTimeout(this.timer);
  // This allows monitoring to be stopped from within the callback.
  this.uri = null;
};

/**
 * Request progress data from server.
 */
Drupal.progressBar.prototype.sendPing = function () {
  if (this.timer) {
    clearTimeout(this.timer);
  }
  if (this.uri) {
    var pb = this;
    // When doing a post request, you need non-null data. Otherwise a
    // HTTP 411 or HTTP 406 (with Apache mod_security) error may result.
    $.ajax({
      type: this.method,
      url: this.uri,
      data: '',
      dataType: 'json',
      success: function (progress) {
        // Display errors.
        if (progress.status == 0) {
          pb.displayError(progress.data);
          return;
        }
        // Update display.
        pb.setProgress(progress.percentage, progress.message);
        // Schedule next timer.
        pb.timer = setTimeout(function () { pb.sendPing(); }, pb.delay);
      },
      error: function (xmlhttp) {
        pb.displayError(Drupal.ajaxError(xmlhttp, pb.uri));
      }
    });
  }
};

/**
 * Display errors on the page.
 */
Drupal.progressBar.prototype.displayError = function (string) {
  var error = $('<div class="messages error"></div>').html(string);
  $(this.element).before(error).hide();

  if (this.errorCallback) {
    this.errorCallback(this);
  }
};

})(jQuery);
;
/**
 * @file
 * Handles AJAX fetching of views, including filter submission and response.
 */
(function ($) {

/**
 * Attaches the AJAX behavior to Views exposed filter forms and key View links.
 */
Drupal.behaviors.ViewsAjaxView = {};
Drupal.behaviors.ViewsAjaxView.attach = function() {
  if (Drupal.settings && Drupal.settings.views && Drupal.settings.views.ajaxViews) {
    $.each(Drupal.settings.views.ajaxViews, function(i, settings) {
      Drupal.views.instances[i] = new Drupal.views.ajaxView(settings);
    });
  }
};

Drupal.views = {};
Drupal.views.instances = {};

/**
 * Javascript object for a certain view.
 */
Drupal.views.ajaxView = function(settings) {
  var selector = '.view-dom-id-' + settings.view_dom_id;
  this.$view = $(selector);

  // Retrieve the path to use for views' ajax.
  var ajax_path = Drupal.settings.views.ajax_path;

  // If there are multiple views this might've ended up showing up multiple times.
  if (ajax_path.constructor.toString().indexOf("Array") != -1) {
    ajax_path = ajax_path[0];
  }

  // Check if there are any GET parameters to send to views.
  var queryString = window.location.search || '';
  if (queryString !== '') {
    // Remove the question mark and Drupal path component if any.
    var queryString = queryString.slice(1).replace(/q=[^&]+&?|&?render=[^&]+/, '');
    if (queryString !== '') {
      // If there is a '?' in ajax_path, clean url are on and & should be used to add parameters.
      queryString = ((/\?/.test(ajax_path)) ? '&' : '?') + queryString;
    }
  }

  this.element_settings = {
    url: ajax_path + queryString,
    submit: settings,
    setClick: true,
    event: 'click',
    selector: selector,
    progress: { type: 'throbber' }
  };

  this.settings = settings;

  // Add the ajax to exposed forms.
  this.$exposed_form = $('form#views-exposed-form-'+ settings.view_name.replace(/_/g, '-') + '-' + settings.view_display_id.replace(/_/g, '-'));
  this.$exposed_form.once(jQuery.proxy(this.attachExposedFormAjax, this));

  // Add the ajax to pagers.
  this.$view
    // Don't attach to nested views. Doing so would attach multiple behaviors
    // to a given element.
    .filter(jQuery.proxy(this.filterNestedViews, this))
    .once(jQuery.proxy(this.attachPagerAjax, this));
};

Drupal.views.ajaxView.prototype.attachExposedFormAjax = function() {
  var button = $('input[type=submit], input[type=image]', this.$exposed_form);
  button = button[0];

  this.exposedFormAjax = new Drupal.ajax($(button).attr('id'), button, this.element_settings);
};

Drupal.views.ajaxView.prototype.filterNestedViews= function() {
  // If there is at least one parent with a view class, this view
  // is nested (e.g., an attachment). Bail.
  return !this.$view.parents('.view').size();
};

/**
 * Attach the ajax behavior to each link.
 */
Drupal.views.ajaxView.prototype.attachPagerAjax = function() {
  this.$view.find('ul.pager > li > a, th.views-field a, .attachment .views-summary a')
  .each(jQuery.proxy(this.attachPagerLinkAjax, this));
};

/**
 * Attach the ajax behavior to a singe link.
 */
Drupal.views.ajaxView.prototype.attachPagerLinkAjax = function(id, link) {
  var $link = $(link);
  var viewData = {};
  var href = $link.attr('href');
  // Construct an object using the settings defaults and then overriding
  // with data specific to the link.
  $.extend(
    viewData,
    this.settings,
    Drupal.Views.parseQueryString(href),
    // Extract argument data from the URL.
    Drupal.Views.parseViewArgs(href, this.settings.view_base_path)
  );

  // For anchor tags, these will go to the target of the anchor rather
  // than the usual location.
  $.extend(viewData, Drupal.Views.parseViewArgs(href, this.settings.view_base_path));

  this.element_settings.submit = viewData;
  this.pagerAjax = new Drupal.ajax(false, $link, this.element_settings);
};

Drupal.ajax.prototype.commands.viewsScrollTop = function (ajax, response, status) {
  // Scroll to the top of the view. This will allow users
  // to browse newly loaded content after e.g. clicking a pager
  // link.
  var offset = $(response.selector).offset();
  // We can't guarantee that the scrollable object should be
  // the body, as the view could be embedded in something
  // more complex such as a modal popup. Recurse up the DOM
  // and scroll the first element that has a non-zero top.
  var scrollTarget = response.selector;
  while ($(scrollTarget).scrollTop() == 0 && $(scrollTarget).parent()) {
    scrollTarget = $(scrollTarget).parent();
  }
  // Only scroll upward
  if (offset.top - 10 < $(scrollTarget).scrollTop()) {
    $(scrollTarget).animate({scrollTop: (offset.top - 10)}, 500);
  }
};

})(jQuery);
;
