function magic_sort_css_js in Magic 7

Same name and namespace in other branches

1. 7.2 includes/scripts-experimental.inc \magic_sort_css_js()

Sorts CSS and JavaScript resources.

Callback for uasort() within:

• drupal_get_css()
• magic_experimental_js()

This sort order helps optimize front-end performance while providing modules and themes with the necessary control for ordering the CSS and JavaScript appearing on a page.

Parameters

$a: First item for comparison. The compared items should be associative arrays of member items from drupal_add_css() or magic_add_js().

$b: Second item for comparison.

See also

drupal_add_css()

magic_add_js()

1 string reference to 'magic_sort_css_js'

magic_experimental_js in includes/scripts-experimental.inc

Returns a themed presentation of all JavaScript code for the current page.

File

includes/scripts-experimental.inc, line 773

A file to contain functions for the magic module to abuse.

Code

function magic_sort_css_js($a, $b) {

  // First order by group, so that, for example, all items in the CSS_SYSTEM
  // group appear before items in the CSS_DEFAULT group, which appear before
  // all items in the CSS_THEME group. Modules may create additional groups by
  // defining their own constants.
  if (!empty($a['group']) && !empty($b['group'])) {
    if ($a['group'] < $b['group']) {
      return -1;
    }
    elseif ($a['group'] > $b['group']) {
      return 1;
    }
  }

  // Within a group, order all infrequently needed, page-specific files after
  // common files needed throughout the website. Separating this way allows for
  // the aggregate file generated for all of the common files to be reused
  // across a site visit without being cut by a page using a less common file.
  if (!empty($a['every_page']) && !empty($b['every_page'])) {
    if ($a['every_page'] && !$b['every_page']) {
      return -1;
    }
    elseif (!$a['every_page'] && $b['every_page']) {
      return 1;
    }
  }

  // Finally, order by weight.
  if (!empty($a['weight']) && !empty($b['weight'])) {
    if ($a['weight'] < $b['weight']) {
      return -1;
    }
    elseif ($a['weight'] > $b['weight']) {
      return 1;
    }
  }
  else {
    return 0;
  }
}