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annotate dnd.module @ 17:1a77f87927dd

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Fixed :empty custom selector behavior in IE, a little refactoring, etc.
author David Eads <eads@chicagotech.org>
date Wed, 04 Mar 2009 13:29:31 -0600
parents bb68dc3ad56f
children 0d557e6e73f7
rev   line source
eads@1 1 <?php
eads@1 2
eads@2 3 // A suffix for auto generated IDs
eads@2 4 define(DND_ID_SUFFIX, '-dnd-library');
eads@2 5
eads@1 6 /**
eads@1 7 * Implementation of hook_menu().
eads@1 8 */
eads@1 9 function dnd_menu() {
eads@1 10 $items = array();
eads@1 11 $items['admin/settings/dnd'] = array(
eads@1 12 'title' => 'Drag and Drop Library',
eads@1 13 'page callback' => 'dnd_admin',
eads@1 14 'description' => 'Configure drag-and-drop enabled textareas.',
eads@1 15 'access arguments' => array('administer dnd'),
eads@1 16 'file' => 'dnd.admin.inc',
eads@1 17 );
eads@1 18 return $items;
eads@1 19 }
eads@1 20
eads@1 21 /**
eads@1 22 * Implementation of hook_perm().
eads@1 23 */
eads@1 24 function dnd_perm() {
eads@1 25 return array('administer dnd');
eads@1 26 }
eads@2 27
eads@2 28 /**
eads@2 29 * Implementation of hook_theme().
eads@2 30 */
eads@2 31 function dnd_theme() {
eads@2 32 return array(
eads@2 33 'dnd_library' => array('arguments' => array('element' => NULL, 'settings' => NULL), 'template' => 'dnd-library'),
eads@2 34 );
eads@2 35 }
eads@2 36
eads@2 37
eads@2 38 /**
eads@2 39 * Implementation of hook_elements().
eads@2 40 *
eads@2 41 * Overload textareas.
eads@2 42 */
eads@2 43 function dnd_elements() {
eads@2 44 $type = array();
eads@2 45 $type['textarea'] = array(
eads@2 46 '#input' => TRUE,
eads@2 47 '#cols' => 60,
eads@2 48 '#rows' => 5,
eads@2 49 '#resizable' => TRUE,
eads@2 50 '#dnd-enabled' => FALSE,
eads@2 51 '#dnd-settings' => NULL,
eads@2 52 '#process' => array('form_expand_ahah', 'dnd_process_textarea'),
eads@2 53 );
eads@2 54 return $type;
eads@2 55 }
eads@2 56
eads@2 57 /**
eads@2 58 * Settings array:
eads@2 59 * What should it take, if anything? Probably a source...
eads@2 60 * maybe editor specific configuration shit?
eads@2 61 *
eads@2 62 * - source for library json/ajax shit
eads@2 63 * - target selector
eads@2 64 * - item selector
eads@2 65 *
eads@2 66 * perhaps like so:
eads@2 67 *
eads@2 68 * global =>
eads@2 69 * droppable targets
eads@2 70 * library source for textarea
eads@2 71 *
eads@2 72 * tinymce/othereditor =>
eads@2 73 * target selector logic
eads@2 74 * configuration options
eads@2 75 * callback should be smart about attachment and detachment
eads@2 76 */
eads@2 77 function dnd_process_textarea($element, $form_state) {
eads@2 78 if ($element['#dnd-enabled']) {
eads@2 79
eads@12 80 drupal_add_js(drupal_get_path('module', 'dnd') .'/js/jquery.url.packed.js', 'footer');
eads@16 81 drupal_add_js(drupal_get_path('module', 'dnd') .'/js/jquery.fieldselection.js', 'footer');
eads@4 82 drupal_add_js(drupal_get_path('module', 'dnd') .'/js/dnd.js', 'footer');
eads@4 83 drupal_add_js(drupal_get_path('module', 'dnd') .'/js/dnd-library.js', 'footer');
eads@2 84
eads@2 85 $settings = array();
eads@2 86
eads@2 87 // We take a string or an
eads@2 88 if (is_string($element['#dnd-settings'])) {
eads@2 89 // @TODO load settings
eads@2 90 }
eads@2 91 else if (is_object($element['#dnd-settings'])) {
eads@2 92 $settings = (array) $element['#dnd-settings'];
eads@2 93 }
eads@2 94 else if (is_array($element['#dnd-settings'])) {
eads@2 95 $settings = $element['#dnd-settings'];
eads@2 96 }
eads@2 97
eads@2 98 // Set some important defaults
eads@2 99 $settings = array('library_id' => $element['#id'] . DND_ID_SUFFIX) + $settings;
eads@2 100
eads@2 101 // Add enabled libraries to settings for tracking
eads@2 102 drupal_add_js(array(
eads@2 103 'dndEnabledLibraries' => array($element['#id'] => $settings),
eads@2 104 ), 'setting');
eads@2 105
eads@2 106 $element['#prefix'] = theme('dnd_library', $element, $settings);
eads@2 107 }
eads@2 108 return $element;
eads@2 109 }
eads@2 110
eads@2 111 function template_preprocess_dnd_library(&$variables) {
eads@2 112 global $base_url;
eads@2 113 list($element, $settings) = array($variables['element'], $variables['settings']);
eads@2 114
eads@2 115 // Get library via a backdoor HTTP request. This is plenty fast for this
eads@2 116 // application and keeps things nice and consistent.
eads@2 117 if (!($url = parse_url($settings['url']))) {
eads@2 118 return t('This library is not available');
eads@2 119 }
eads@2 120
eads@2 121 // Handle both relative and absolute urls
eads@2 122 if (!isset($url['scheme'])) {
eads@2 123 $settings['url'] = $base_url .'/'. $settings['url'];
eads@2 124 }
eads@2 125
eads@2 126 $request = drupal_http_request($settings['url']);
eads@2 127
eads@2 128 // We must remove some Drupal escaping
eads@2 129 $json = json_decode(str_replace(array('\x3c', '\x3e', '\x26'), array("<", ">", "&"), $request->data), TRUE);
eads@2 130
eads@4 131 // Generate an array of editor representations to add
eads@7 132 if (is_array($json['editor_representations'])) {
eads@7 133 foreach ($json['editor_representations'] as $editor_id=>$editor_item) {
eads@7 134 $editor_representations[$editor_id] = filter_xss_admin($editor_item);
eads@7 135 }
eads@2 136 }
eads@2 137
eads@17 138 // Generate an array of library previews to add
eads@17 139 if (is_array($json['library_previews'])) {
eads@17 140 foreach ($json['library_previews'] as $preview_id=>$preview_item) {
eads@17 141 $library_previews[$preview_id] = filter_xss_admin($preview_item);
eads@17 142 }
eads@17 143 }
eads@17 144
eads@4 145 // Store editor representations in Drupal setting
eads@17 146 drupal_add_js(array(
eads@17 147 'dndEditorRepresentations' => $editor_representations,
eads@17 148 'dndLibraryPreviews' => $library_previews,
eads@17 149 ), 'setting');
eads@4 150
eads@2 151 $variables['library_id'] = $settings['library_id'];
eads@4 152 $variables['header'] = filter_xss_admin($json['header']);
eads@4 153 $variables['library'] = filter_xss_admin($json['library']);
eads@4 154 $variables['footer'] = filter_xss_admin($json['footer']);
eads@2 155 }