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<?php
defined('ABSPATH') || exit;
if (version_compare(phpversion(), '5.3', '<')) {
return;
}
/**
* Newsletter widget version 2.0: it'll replace the old version left for compatibility.
*/
class NewsletterWidget extends WP_Widget {
function __construct() {
parent::__construct(false, $name = 'Newsletter', array('description' => 'Newsletter widget to add subscription forms on sidebars'), array('width' => '350px'));
}
static function get_widget_form($instance) {
$field_wrapper_tag = 'div';
if (!isset($instance['nl']) || !is_array($instance['nl'])) {
$instance['nl'] = array();
}
$instance = array_merge(array('lists_layout' => '',
'lists_empty_label' => '',
'lists_field_label' => ''), $instance);
$options_profile = get_option('newsletter_profile');
$form = '';
$form .= NewsletterSubscription::instance()->get_subscription_form('widget', null, array(
'referrer'=>'widget',
'before'=>'<div class="tnp tnp-widget">',
'after'=>'</div>',
'lists' => implode(',', $instance['nl']),
'lists_field_layout' => $instance['lists_layout'],
'lists_field_empty_label' => $instance['lists_empty_label'],
'lists_field_label' => $instance['lists_field_label'],
));
return $form;
}
function widget($args, $instance) {
$newsletter = Newsletter::instance();
extract($args);
if (empty($instance))
$instance = array();
$instance = array_merge(array('text' => '', 'title' => ''), $instance);
echo $before_widget;
// Filters are used for WPML
if (!empty($instance['title'])) {
$title = apply_filters('widget_title', $instance['title'], $instance);
echo $before_title . $title . $after_title;
}
$buffer = apply_filters('widget_text', $instance['text'], $instance);
$options = get_option('newsletter');
$options_profile = get_option('newsletter_profile');
if (stripos($instance['text'], '<form') === false) {
$form = NewsletterWidget::get_widget_form($instance);
// Canot user directly the replace, since the form is different on the widget...
if (strpos($buffer, '{subscription_form}') !== false)
$buffer = str_replace('{subscription_form}', $form, $buffer);
else {
if (strpos($buffer, '{subscription_form_') !== false) {
// TODO: Optimize with a method to replace only the custom forms
$buffer = $newsletter->replace($buffer);
} else {
$buffer .= $form;
}
}
} else {
$buffer = str_ireplace('<form', '<form method="post" action="' . esc_attr($newsletter->get_subscribe_url()) . '"', $buffer);
$buffer = str_ireplace('</form>', '<input type="hidden" name="nr" value="widget"/></form>', $buffer);
}
// That replace all the remaining tags
$buffer = $newsletter->replace($buffer);
echo $buffer;
echo $after_widget;
}
function update($new_instance, $old_instance) {
return $new_instance;
}
function form($instance) {
if (!is_array($instance)) {
$instance = array();
}
$instance = array_merge(array('title' => '', 'text' => '', 'lists_layout' => '', 'lists_empty_label' => '', 'lists_field_label' => ''), $instance);
$options_profile = get_option('newsletter_profile');
if (!isset($instance['nl']) || !is_array($instance['nl']))
$instance['nl'] = array();
?>
<p>
<label for="<?php echo $this->get_field_id('title'); ?>">
<?php _e('Title')?>:
<input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr($instance['title']); ?>" />
</label>
<label for="<?php echo $this->get_field_id('text'); ?>">
Introduction:
<textarea class="widefat" rows="10" cols="20" id="<?php echo $this->get_field_id('text'); ?>" name="<?php echo $this->get_field_name('text'); ?>"><?php echo esc_html($instance['text']); ?></textarea>
</label>
<label>
Show lists as:
<select name="<?php echo $this->get_field_name('lists_layout'); ?>" id="<?php echo $this->get_field_id('lists_layout'); ?>" style="width: 100%">
<option value="">Checkboxes</option>
<option value="dropdown" <?php echo $instance['lists_layout'] == 'dropdown' ? 'selected' : '' ?>>Dropdown</option>
</select>
</label>
<br>
<label for="<?php echo $this->get_field_id('lists_empty_label'); ?>">
First dropdown entry label:
<input class="widefat" id="<?php echo $this->get_field_id('lists_empty_label'); ?>" name="<?php echo $this->get_field_name('lists_empty_label'); ?>" type="text" value="<?php echo esc_attr($instance['lists_empty_label']); ?>" />
</label>
<br>
<label for="<?php echo $this->get_field_id('lists_field_label'); ?>">
Lists field label:
<input class="widefat" id="<?php echo $this->get_field_id('lists_field_label'); ?>" name="<?php echo $this->get_field_name('lists_field_label'); ?>" type="text" value="<?php echo esc_attr($instance['lists_field_label']); ?>" />
</label>
<br><br>
<?php _e('Automatically subscribe to', 'newsletter') ?>
<br>
<?php
$lists = Newsletter::instance()->get_lists_public();
foreach ($lists as $list) {
?>
<label for="nl<?php echo $list->id ?>">
<input type="checkbox" value="<?php echo $list->id ?>" name="<?php echo $this->get_field_name('nl[]') ?>" <?php echo array_search($list->id, $instance['nl']) !== false ? 'checked' : '' ?>> <?php echo esc_html($list->name) ?>
</label>
<br>
<?php } ?>
<br>
</p>
<p>
Use the tag {subscription_form} to place the subscription form within your personal text.
</p>
<?php
}
}
add_action('widgets_init', function () {
return register_widget("NewsletterWidget");
});