drupalcampbristol/web/core/misc/dialog/dialog.position.js

/**
* DO NOT EDIT THIS FILE.
* See the following change record for more information,
* https://www.drupal.org/node/2815083
* @preserve
**/

(function ($, Drupal, drupalSettings, debounce, displace) {
  drupalSettings.dialog = $.extend({ autoResize: true, maxHeight: '95%' }, drupalSettings.dialog);

  function resetPosition(options) {
    var offsets = displace.offsets;
    var left = offsets.left - offsets.right;
    var top = offsets.top - offsets.bottom;

    var leftString = (left > 0 ? '+' : '-') + Math.abs(Math.round(left / 2)) + 'px';
    var topString = (top > 0 ? '+' : '-') + Math.abs(Math.round(top / 2)) + 'px';
    options.position = {
      my: 'center' + (left !== 0 ? leftString : '') + ' center' + (top !== 0 ? topString : ''),
      of: window
    };
    return options;
  }

  function resetSize(event) {
    var positionOptions = ['width', 'height', 'minWidth', 'minHeight', 'maxHeight', 'maxWidth', 'position'];
    var adjustedOptions = {};
    var windowHeight = $(window).height();
    var option = void 0;
    var optionValue = void 0;
    var adjustedValue = void 0;
    for (var n = 0; n < positionOptions.length; n++) {
      option = positionOptions[n];
      optionValue = event.data.settings[option];
      if (optionValue) {
        if (typeof optionValue === 'string' && /%$/.test(optionValue) && /height/i.test(option)) {
          windowHeight -= displace.offsets.top + displace.offsets.bottom;
          adjustedValue = parseInt(0.01 * parseInt(optionValue, 10) * windowHeight, 10);

          if (option === 'height' && event.data.$element.parent().outerHeight() < adjustedValue) {
            adjustedValue = 'auto';
          }
          adjustedOptions[option] = adjustedValue;
        }
      }
    }

    if (!event.data.settings.modal) {
      adjustedOptions = resetPosition(adjustedOptions);
    }
    event.data.$element.dialog('option', adjustedOptions).trigger('dialogContentResize');
  }

  $(window).on({
    'dialog:aftercreate': function dialogAftercreate(event, dialog, $element, settings) {
      var autoResize = debounce(resetSize, 20);
      var eventData = { settings: settings, $element: $element };
      if (settings.autoResize === true || settings.autoResize === 'true') {
        $element.dialog('option', { resizable: false, draggable: false }).dialog('widget').css('position', 'fixed');
        $(window).on('resize.dialogResize scroll.dialogResize', eventData, autoResize).trigger('resize.dialogResize');
        $(document).on('drupalViewportOffsetChange.dialogResize', eventData, autoResize);
      }
    },
    'dialog:beforeclose': function dialogBeforeclose(event, dialog, $element) {
      $(window).off('.dialogResize');
      $(document).off('.dialogResize');
    }
  });
})(jQuery, Drupal, drupalSettings, Drupal.debounce, Drupal.displace);