icon_test.module

<?php
/**
 * @file
 * Provides testing hooks for Icon API.
 */

/**
 * Implements hook_menu().
 */
function icon_test_menu() {
  $items['icon-content/%'] = array(
    'page callback' => '_icon_test_content',
    'page arguments' => array(1, 2),
    'access callback' => TRUE,
    'type' => MENU_CALLBACK,
  );
  $items['icon-path/%'] = array(
    'page callback' => '_icon_test_path',
    'page arguments' => array(1, 2),
    'access callback' => TRUE,
    'type' => MENU_CALLBACK,
  );
  return $items;
}

/**
 * Page callback for displaying an icon.
 */
function _icon_test_content($icon_name, $immutable = 0) {
  print icon($icon_name, array('immutable' => (bool) $immutable));
  exit();
}

/**
 * Page callback for displaying an icon path.
 */
function _icon_test_path($icon_name, $immutable = 0) {
  print icon_get_path($icon_name, $immutable);
  exit();
}

/**
 * Implements hook_icon_info().
 */
function icon_test_icon_info() {
  $icons = array();
  $module_path = backdrop_get_path('module', 'icon_test');

  // Replace an icon in the default location.
  if (state_get('icon_test_location') === 'default') {
    $icons['gear'] = array();
  }

  // Replace an icon with the same name in a different directory.
  if (state_get('icon_test_location') === 'directory') {
    $icons['gear'] = array(
      'directory' => $module_path . '/icons/bold',
    );
  }

  // Replace an icon with a different name in the default directory.
  if (state_get('icon_test_location') === 'renamed') {
    $icons['gear'] = array(
      'name' => 'gear-thin',
    );
  }

  // Replace an icon with a different name in the default directory.
  if (state_get('icon_test_location') === 'renamed_directory') {
    $icons['gear'] = array(
      'directory' => $module_path . '/icons/bold',
      'name' => 'gear-bold',
    );
  }

  // Replace an icon outside of the module directory.
  if (state_get('icon_test_location') === 'outside_module') {
    $icons['gear'] = array(
      'directory' => 'core/misc/icons',
      'name' => 'gear-six',
    );
  }

  return $icons;
}

/**
 * Implements hook_icon_info_alter().
 */
function icon_test_icon_info_alter(&$icons) {
  // Remove the icon provided by another module (in this case we're actually
  // removing the icon set in icon_test_icon_info() from above).
  if (state_get('icon_test_alter') === 'remove') {
    unset($icons['gear']);
  }
}