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<?php
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// $Id: jlightbox.module,v 1.11 2009/05/06 23:57:17 sun Exp $
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/**
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* @file
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* jLightbox is a port of the Lightbox project using jQuery instead of prototype
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* and script.acolu.ous libraries. It is based on the famous Lightbox v2 script
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* by Lokesh Dhakar, but will soon be enhanced with Drupal specific
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* customizations.
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*
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* Learn more about Lightbox v2:
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* <http://www.huddletogether.com/projects/lightbox2>
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*/
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/**
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* Implementation of hook_menu()
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*/
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function jlightbox_init() {
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jlightbox_add();
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}
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/**
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* Add jLightbox stylesheet and javascript to the output.
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*/
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function jlightbox_add() {
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$path = drupal_get_path('module', 'jlightbox');
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drupal_add_js(array('jlightbox' => array('path' => url($path, array('absolute' => TRUE)))), 'setting');
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// Theme-specific stylesheet override support.
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// #178364: path_to_theme() invokes init_theme(), thus it must not be invoked
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// in block settings to allow initializing of the selected theme. Likewise,
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// the theme system is initialized later when in maintenance mode.
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if (strpos($_GET['q'], 'admin/build/block') === FALSE && !variable_get('site_offline', 0)) {
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$css = path_to_theme() .'/jlightbox.css';
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if (!file_exists($css)) {
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$css = $path .'/css/jlightbox.css';
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}
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drupal_add_css($css, 'module', 'screen');
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}
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// Image / Image Assist support.
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if (module_exists('image') && module_exists('img_assist')) {
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drupal_add_js($path .'/js/jlightbox_image.js');
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}
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// Inline support.
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if (module_exists('inline')) {
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drupal_add_js($path .'/js/jlightbox_inline.js');
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}
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// jLightbox needs to be loaded last.
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drupal_add_js($path .'/js/jlightbox.uncompressed.js');
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}
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/**
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* Implementation of hook_field_formatter_info().
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*
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* Adds a field formatter for CCK image field if both imagefield.module and
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* imagecache.module exist.
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*/
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function jlightbox_field_formatter_info() {
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$formatters = array();
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if (!module_exists('imagefield') || !module_exists('imagecache')) {
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return $formatters;
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}
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$rules = array();
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// ImageCache v2 API.
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if (function_exists('imagecache_presets')) {
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$presets = imagecache_presets();
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foreach ($presets as $preset_id => $preset_info) {
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$rules[$preset_id] = $preset_info['presetname'];
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}
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}
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// ImageCache v1 API (deprecated).
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else {
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$rules = _imagecache_get_presets();
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}
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foreach ($rules as $ruleid => $rulename) {
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$formatters['jlightbox]['. $rulename .'][gallery'] = array(
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'label' => 'jLightbox: '. $rulename .' gallery',
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'field types' => array('image', 'filefield'),
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);
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$formatters['jlightbox]['. $rulename .'][single'] = array(
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'label' => 'jLightbox: '. $rulename,
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'field types' => array('image', 'filefield'),
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);
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}
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return $formatters;
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}
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/**
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* Implementation of hook_field_formatter().
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*/
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function jlightbox_field_formatter($field, $item, $formatter, $node) {
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if (!module_exists('imagefield') || !module_exists('imagecache')) {
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return '';
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}
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if (!isset($item['fid'])) {
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return '';
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}
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$file = _imagefield_file_load($item['fid']);
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$item = array_merge($item, $file);
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if (strpos($formatter, 'jlightbox][') !== FALSE) {
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list($module, $namespace, $type) = explode('][', $formatter);
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$rules = array();
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// ImageCache v2 API.
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if (function_exists('imagecache_presets')) {
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$presets = imagecache_presets();
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foreach ($presets as $preset_id => $preset_info) {
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$rules[$preset_id] = $preset_info['presetname'];
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}
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}
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// ImageCache v1 API (deprecated).
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else {
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$rules = _imagecache_get_presets();
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}
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if (in_array($namespace, (array)$rules)) {
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return theme('imagefield_jlightbox', $namespace, $formatter, $field, $item, $type);
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}
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}
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}
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/**
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* Implementation of hook_theme().
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*/
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function jlightbox_theme() {
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return array(
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'imagefield_jlightbox' => array(
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'arguments' => array('namespace' => '', 'formatter' => NULL, 'field' => array(), 'item' => array(), 'type' => '', 'attributes' => array()),
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),
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);
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}
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/**
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* Implementation of theme_imagefield_jlightbox().
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*/
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function theme_imagefield_jlightbox($namespace, $formatter, $field, $item, $type, $attributes = array()) {
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$attributes['class'] = 'image '. $namespace;
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$gallery = '';
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$imagecache_path = file_create_url(file_directory_path() .'/imagecache/'. $namespace .'/'. $item['filepath']);
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$image = theme('imagecache', $namespace, $item['filepath'], $item['alt'], $item['title'], $attributes);
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if ($type == 'gallery') {
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$gallery = '['. form_clean_id($field['field_name']) .']';
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}
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$link_attributes = array(
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'rel' => 'lightbox'. $gallery,
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'title' => ($item['alt'] != $item['filename']) ? $item['alt'] : $item['title'],
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);
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$output = l($image, file_create_url($item['filepath']), array('attributes' => $link_attributes, 'absolute' => FALSE, 'html' => TRUE));
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return $output;
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}
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