css_emimage.install in CSS Embedded Images 7

Install, update, and uninstall functions for the css_emimage module.

File

css_emimage.install

<?php

/**
 * @file
 * Install, update, and uninstall functions for the css_emimage module.
 */

/**
 * Implements hook_disable().
 */
function css_emimage_disable() {

  // Clear CSS cache.
  _drupal_flush_css_js();
  drupal_clear_css_cache();

  // Remove empty css files.
  file_scan_directory('public://css', '/.*/', array(
    'callback' => 'css_emimage_delete_file_if_empty',
  ));
}

/**
 * Implements hook_uninstall().
 */
function css_emimage_uninstall() {

  // Remove variables.
  db_delete('variable')
    ->condition('name', 'css_emimage%', 'LIKE')
    ->execute();
}

/**
 * Callback to delete files if they are empty.
 */
function css_emimage_delete_file_if_empty($uri) {

  // Empty gzip files ahve a size of 20.
  if (filesize($uri) == 0 || strpos($uri, '.css.gz') !== FALSE && filesize($uri) == 20) {
    file_unmanaged_delete($uri);
  }
}

Functions

Name	Description
css_emimage_delete_file_if_empty	Callback to delete files if they are empty.
css_emimage_disable	Implements hook_disable().
css_emimage_uninstall	Implements hook_uninstall().