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<?php
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// $Id: linkimagefield_widget.inc,v 1.4 2009/08/27 19:50:30 johnfyoung Exp $
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/**
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* @file
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*
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* linkimagefield widget code
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* @author John Young <john@codeandcreative.com>
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*/
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/**
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* Implementation of CCK's hook_widget_settings($op = 'form')
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*
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* @param array $widget
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* @return array
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*/
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function linkimagefield_widget_settings_form($widget) {
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$form = module_invoke('imagefield', 'widget_settings', 'form', $widget);
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$form['url_settings'] = array(
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'#type' => 'fieldset',
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'#title' => t('URL Link settings'),
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'#collapsible' => TRUE,
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'#collapsed' => FALSE,
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'#weight' => 0,
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);
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$form['url_settings']['url'] = array(
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'#type' => 'textfield',
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'#maxlength' => '255',
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'#title' => t('Default URL'),
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'#description' => t('Provide a well-formed URL. This will be the default url linked to by provided images.'),
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'#default_value' => !empty($widget['url']) ? $widget['url'] : '',
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);
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$target_options = _linkimagefield_widget_url_target_options();
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$form['url_settings']['custom_target'] = array(
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'#type' => 'checkbox',
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'#title' => t('Enable custom target'),
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'#default_value' => !empty($widget['custom_target']) ? $widget['custom_target'] : 0,
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'#description' => t('Enable user to provide alternate target frame for link.'),
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);
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$form['url_settings']['target'] = array(
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'#type' => 'select',
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'#maxlength' => '255',
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'#title' => t('Default Target'),
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'#description' => t('Select a default target type.'),
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'#default_value' => !empty($widget['target']) ? $widget['target'] : '_self',
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'#options' => $target_options,
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);
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$form['url_settings']['nofollow'] = array(
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'#type' => 'checkbox',
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'#title' => t('Enable nofollow'),
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'#default_value' => !empty($widget['nofollow']) ? $widget['nofollow'] : 0,
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'#description' => t('Allow links to have "nofollow" rel tags'),
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);
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return $form;
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}
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/**
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* Implementation of CCK's hook_widget_settings($op = 'save').
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*
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* @param array $widget
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* @return array
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*/
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function linkimagefield_widget_settings_save($widget) {
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$imagefield_settings = module_invoke('imagefield', 'widget_settings', 'save', $widget);
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return array_merge($imagefield_settings, array('url', 'custom_target', 'target', 'nofollow'));
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}
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/**
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* Implementation of CCK's hook_widget_settings($op = 'validate').
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*
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* @param array $widget
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*/
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function linkimagefield_widget_settings_validate($widget) {
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module_invoke('imagefield', 'widget_settings', 'validate', $widget);
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// Check the URL
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if (!empty($widget['url'])) {
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if (!valid_url($widget['url'])) {
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form_set_error('url', t('Please provide a valid url.'));
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} else {
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$widget['url'] = check_url($widget['url']);
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}
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}
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// Check the target
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if (!empty($widget['target'])) {
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$options = array('_self', '_blank', '_parent', '_top');
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if(!in_array($widget['target'], $options)) {
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$widget['target'] = '_self';
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}
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}
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}
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/**
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* Element #value_callback function.
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*
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* @param array $element
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* @param mixed $edit
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* @return array
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*/
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function linkimagefield_widget_value($element, $edit = FALSE) {
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$item = imagefield_widget_value($element, $edit);
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if ($edit) {
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$item['url'] = isset($edit['data']['url']) ? $edit['data']['url'] : '';
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$item['target'] = isset($edit['data']['target']) ? $edit['data']['target'] : '_self';
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$item['nofollow'] = isset($edit['data']['nofollow']) ? $edit['data']['nofollow'] : FALSE;
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}
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else {
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$item['url'] = '';
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$item['target'] = '_self';
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$item['nofollow'] = TRUE;
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}
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return $item;
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}
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/**
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* Element #process callback function.
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*
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* @param array $element
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* @param array $edit
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* @param arrayreference $form_state
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* @param array $form
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* @return array
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*/
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function linkimagefield_widget_process($element, $edit, &$form_state, $form) {
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$file = $element['#value'];
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$element = imagefield_widget_process($element, $edit, $form_state, $form);
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// add some help text, telling user the URL field will be viewable after the file is supplied
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$element['upload']['#description'] = t('Once an Image is uploaded, you will ba able to supply a URL for the link.') . '<br />' . $element['upload']['#description'];
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$field = content_fields($element['#field_name'], $element['#type_name']);
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$element['#theme'] = 'linkimagefield_widget_item';
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$element['data']['url'] = array(
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'#title' => t('URL'),
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'#type' => 'textfield',
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'#default_value' => $file['data']['url'] ? $file['data']['url'] : $field['widget']['url'],
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'#description' => t('This URL will be loaded when the image is clicked'),
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'#maxlength' => 255,
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);
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$default_target = !$field['widget']['custom_target'];
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$element['data']['target'] = array(
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'#title' => t('Target'),
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'#type' => $field['widget']['custom_target'] ? 'select' : 'value',
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'#default_value' => $default_target ? $field['widget']['target'] : $file['data']['target'],
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'#description' => t('Window/Frame Target for the URL'),
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);
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if($field['widget']['custom_target']) {
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$element['data']['target']['#options'] = array_merge(array('default' => t('Use Default').' ('.$field['widget']['target'].')'),_linkimagefield_widget_url_target_options());
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}
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if($field['widget']['nofollow']) {
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$element['data']['nofollow'] = array(
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'#title' => t('Mark as "nofollow"'),
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'#type' => 'checkbox',
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'#default_value' => $file['data']['nofollow'],
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'#description' => t('Add a relation tag telling bots not to follow this link'),
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);
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}
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return $element;
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}
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/**
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* FormAPI theme function. Theme the output of an image field.
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*
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* @param arrayreference $element
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* @return string
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*/
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function theme_linkimagefield_widget(&$element) {
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drupal_add_css(drupal_get_path('module', 'imagefield') .'/imagefield.css');
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return theme('form_element', $element, $element['#children']);
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}
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/**
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* the list of URL frame targets
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*
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* @return array
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*/
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function _linkimagefield_widget_url_target_options(){
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return array(
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'_self' => t('Same Window (_self)'),
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'_blank' => t('New Window (_blank)'),
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'_parent' => t('Parent Frame (_parent)'),
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'_top' => t('Top Frame (_top)'),
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);
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}
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