135 lines
3.5 KiB
Text
135 lines
3.5 KiB
Text
<?php
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/**
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* @file
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* Provides the jQuery UI plug-in to other Drupal modules.
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*
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* This module doesn't do too much, but it is a central location for any other
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* modules that implement the JQuery UI library. It ensures that multiple
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* modules will all include the same library script just once on any given page.
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*/
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/**
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* Add the specified jQuery UI library files to this page.
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*
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* The ui.core file is always included automatically, as well as the
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* effects.core file if any of the effects libraries are used.
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*
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* @param $files
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* An array of what additional files (other than UI core) should be loaded
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* on the page, or a string with a single file name.
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*/
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function jquery_ui_add($files = array()) {
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static $loaded_files, $ui_core, $effects_core;
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$jquery_ui_path = jquery_ui_get_path();
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if ($jquery_ui_path === FALSE) {
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return FALSE;
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}
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$jquery_ui_path .= '/ui';
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$compression = variable_get('jquery_update_compression_type', 'mini');
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// Convert file to an array if it's not one already, to compensate for
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// lazy developers. ;)
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if (!is_array($files)) {
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$files = array($files);
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}
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// If core hasn't been added yet, add it.
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if (!isset($ui_core)) {
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$ui_core = TRUE;
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jquery_ui_add(array('ui.core'));
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}
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// Loop through list of files to include and add them to the page.
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foreach ($files as $file) {
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// Any effects files require the effects core file.
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if (!isset($effects_core) && strpos($file, 'effects.') === 0) {
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$effects_core = TRUE;
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jquery_ui_add(array('effects.core'));
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}
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// Load other files.
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if (!isset($loaded_files[$file])) {
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switch ($compression) {
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case 'none':
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$file_path = "$file.js";
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break;
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case 'pack':
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$file_path = "packed/$file.packed.js";
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break;
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case 'mini':
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default:
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$file_path = "minified/$file.min.js";
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break;
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}
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$js_path = $jquery_ui_path . '/' . $file_path;
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drupal_add_js($js_path);
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$loaded_files[$file] = $js_path;
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}
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}
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}
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/**
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* Returns the path to the jQuery UI library or FALSE if not found.
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*/
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function jquery_ui_get_path() {
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static $path;
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if (isset($path)) {
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return $path;
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}
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$path = FALSE;
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// Libraries API integration.
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if (function_exists('libraries_get_path')) {
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$path = libraries_get_path('jquery.ui');
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// Libraries API 1.x returns a default path; 2.x returns FALSE.
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if ($path !== FALSE && !file_exists($path)) {
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$path = FALSE;
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}
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}
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// Manually check libraries in case Libraries API is not available.
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elseif (file_exists('./libraries/jquery.ui')) {
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$path = 'libraries/jquery.ui';
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}
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// Check the module directory for backwards compatibility if other methods
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// failed.
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if (!$path) {
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// drupal_get_path() is not available during Drupal installation.
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if (defined('MAINTENANCE_MODE') && MAINTENANCE_MODE == 'install') {
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$path = drupal_substr(dirname(__FILE__), drupal_strlen(getcwd()) + 1);
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$path = strtr($path, '\\', '/');
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$path .= '/jquery.ui';
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}
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else {
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$path = drupal_get_path('module', 'jquery_ui') . '/jquery.ui';
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}
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if (!file_exists($path)) {
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$path = FALSE;
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}
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}
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return $path;
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}
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/**
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* Return the version of jQuery UI installed.
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*/
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function jquery_ui_get_version() {
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$version = 0;
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$path = jquery_ui_get_path();
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if ($path === FALSE) {
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return $version;
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}
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$file = $path . '/version.txt';
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if (file_exists($file)) {
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$version = file_get_contents($file);
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}
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return $version;
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}
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