/**

 * @file

 * Attaches the behaviors for the Overlay child pages.

 */

(function ($) {

/**

 * Attach the child dialog behavior to new content.

 */

Drupal.behaviors.overlayChild = {

  attach: function (context, settings) {

    // Make sure this behavior is not processed more than once.

    if (this.processed) {

      return;

    }

    this.processed = true;

    // If we cannot reach the parent window, break out of the overlay.

    if (!parent.Drupal || !parent.Drupal.overlay) {

      window.location = window.location.href.replace(/([?&]?)render=overlay&?/g, '$1').replace(/\?$/, '');

    }

    var settings = settings.overlayChild || {};

    // If the entire parent window should be refreshed when the overlay is

    // closed, pass that information to the parent window.

    if (settings.refreshPage) {

      parent.Drupal.overlay.refreshPage = true;

    }

    // If a form has been submitted successfully, then the server side script

    // may have decided to tell the parent window to close the popup dialog.

    if (settings.closeOverlay) {

      parent.Drupal.overlay.bindChild(window, true);

      // Use setTimeout to close the child window from a separate thread,

      // because the current one is busy processing Drupal behaviors.

      setTimeout(function () {

        if (typeof settings.redirect == 'string') {

          parent.Drupal.overlay.redirect(settings.redirect);

        }

        else {

          parent.Drupal.overlay.close();

        }

      }, 1);

      return;

    }

    // If one of the regions displaying outside the overlay needs to be

    // reloaded immediately, let the parent window know.

    if (settings.refreshRegions) {

      parent.Drupal.overlay.refreshRegions(settings.refreshRegions);

    }

    // Ok, now we can tell the parent window we're ready.

    parent.Drupal.overlay.bindChild(window);

    // IE8 crashes on certain pages if this isn't called; reason unknown.

    window.scrollTo(window.scrollX, window.scrollY);

    // Attach child related behaviors to the iframe document.

    Drupal.overlayChild.attachBehaviors(context, settings);

    // There are two links within the message that informs people about the

    // overlay and how to disable it. Make sure both links are visible when

    // either one has focus and add a class to the wrapper for styling purposes.

    $('#overlay-disable-message', context)

      .focusin(function () {

        $(this).addClass('overlay-disable-message-focused');

        $('a.element-focusable', this).removeClass('element-invisible');

      })

      .focusout(function () {

        $(this).removeClass('overlay-disable-message-focused');

        $('a.element-focusable', this).addClass('element-invisible');

      });

  }

};

/**

 * Overlay object for child windows.

 */

Drupal.overlayChild = Drupal.overlayChild || {

  behaviors: {}

};

Drupal.overlayChild.prototype = {};

/**

 * Attach child related behaviors to the iframe document.

 */

Drupal.overlayChild.attachBehaviors = function (context, settings) {

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

    this(context, settings);

  });

};

/**

 * Capture and handle clicks.

 *

 * Instead of binding a click event handler to every link we bind one to the

 * document and handle events that bubble up. This also allows other scripts

 * to bind their own handlers to links and also to prevent overlay's handling.

 */

Drupal.overlayChild.behaviors.addClickHandler = function (context, settings) {

  $(document).bind('click.drupal-overlay mouseup.drupal-overlay', $.proxy(parent.Drupal.overlay, 'eventhandlerOverrideLink'));

};

/**

 * Modify forms depending on their relation to the overlay.

 *

 * By default, forms are assumed to keep the flow in the overlay. Thus their

 * action attribute get a ?render=overlay suffix.

 */

Drupal.overlayChild.behaviors.parseForms = function (context, settings) {

  $('form', context).once('overlay', function () {

    // Obtain the action attribute of the form.

    var action = $(this).attr('action');

    // Keep internal forms in the overlay.

    if (action == undefined || (action.indexOf('http') != 0 && action.indexOf('https') != 0)) {

      action += (action.indexOf('?') > -1 ? '&' : '?') + 'render=overlay';

      $(this).attr('action', action);

    }

    // Submit external forms into a new window.

    else {

      $(this).attr('target', '_new');

    }

  });

};

/**

 * Replace the overlay title with a message while loading another page.

 */

Drupal.overlayChild.behaviors.loading = function (context, settings) {

  var $title;

  var text = Drupal.t('Loading');

  var dots = '';

  $(document).bind('drupalOverlayBeforeLoad.drupal-overlay.drupal-overlay-child-loading', function () {

    $title = $('#overlay-title').text(text);

    var id = setInterval(function () {

      dots = (dots.length > 10) ? '' : dots + '.';

      $title.text(text + dots);

    }, 500);

  });

};

/**

 * Switch active tab immediately.

 */

Drupal.overlayChild.behaviors.tabs = function (context, settings) {

  var $tabsLinks = $('#overlay-tabs > li > a');

  $('#overlay-tabs > li > a').bind('click.drupal-overlay', function () {

    var active_tab = Drupal.t('(active tab)');

    $tabsLinks.parent().siblings().removeClass('active').find('element-invisible:contains(' + active_tab + ')').appendTo(this);

    $(this).parent().addClass('active');

  });

};

/**

 * If the shortcut add/delete button exists, move it to the overlay titlebar.

 */

Drupal.overlayChild.behaviors.shortcutAddLink = function (context, settings) {

  // Remove any existing shortcut button markup from the titlebar.

  $('#overlay-titlebar').find('.add-or-remove-shortcuts').remove();

  // If the shortcut add/delete button exists, move it to the titlebar.

  var $addToShortcuts = $('.add-or-remove-shortcuts');

  if ($addToShortcuts.length) {

    $addToShortcuts.insertAfter('#overlay-title');

  }

  $(document).bind('drupalOverlayBeforeLoad.drupal-overlay.drupal-overlay-child-loading', function () {

    $('#overlay-titlebar').find('.add-or-remove-shortcuts').remove();

  });

};

/**

 * Use displacement from parent window.

 */

Drupal.overlayChild.behaviors.alterTableHeaderOffset = function (context, settings) {

  if (Drupal.settings.tableHeaderOffset) {

    Drupal.overlayChild.prevTableHeaderOffset = Drupal.settings.tableHeaderOffset;

  }

  Drupal.settings.tableHeaderOffset = 'Drupal.overlayChild.tableHeaderOffset';

};

/**

 * Callback for Drupal.settings.tableHeaderOffset.

 */

Drupal.overlayChild.tableHeaderOffset = function () {

  var topOffset = Drupal.overlayChild.prevTableHeaderOffset ? eval(Drupal.overlayChild.prevTableHeaderOffset + '()') : 0;

  return topOffset + parseInt($(document.body).css('marginTop'));

};

})(jQuery);