convertkit / includes / class-ck-widget-form.php

class-ck-widget-form.php in Kit (formerly ConvertKit) – Email Newsletter, Email Marketing, Membership, Subscribers and Landing Pages 1.6.3, at includes/class-ck-widget-form.php

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1	<?php
2	/**
3	* ConvertKit Form Widget class
4	*
5	* @package ConvertKit
6	* @author ConvertKit
7	*/
8
9	if ( ! defined( 'ABSPATH' ) ) {
10	exit;
11	}
12
13	/**
14	* Form Widget.
15	*
16	* @author ConvertKit
17	* @category Widgets
18	* @version 1.0.0
19	* @extends WP_Widget
20	*/
21	class CK_Widget_Form extends WP_Widget {
22
23	/**
24	* CSS class.
25	*
26	* @var string
27	*/
28	public $widget_cssclass;
29
30	/**
31	* Widget description.
32	*
33	* @var string
34	*/
35	public $widget_description;
36
37	/**
38	* Widget ID.
39	*
40	* @var string
41	*/
42	public $widget_id;
43
44	/**
45	* Widget name.
46	*
47	* @var string
48	*/
49	public $widget_name;
50
51	/**
52	* Settings.
53	*
54	* @var array
55	*/
56	public $settings;
57
58	/**
59	* Constructor.
60	*/
61	public function __construct() {
62	$this->widget_cssclass = 'convertkit widget_convertkit_form';
63	$this->widget_description = __( 'Display a ConvertKit form.', 'convertkit' );
64	$this->widget_id = 'convertkit_form';
65	$this->widget_name = __( 'ConvertKit Form', 'convertkit' );
66
67	$forms = get_option( 'convertkit_forms', array() );
68
69	$this->settings = array(
70	'title' => array(
71	'type' => 'text',
72	'std' => __( 'ConvertKit Form', 'convertkit' ),
73	'label' => __( 'Title', 'convertkit' ),
74	),
75	'form' => array(
76	'type' => 'select',
77	'std' => '',
78	'label' => __( 'Form', 'convertkit' ),
79	'options' => $forms,
80	),
81	);
82
83	$widget_ops = array(
84	'classname' => $this->widget_cssclass,
85	'description' => $this->widget_description,
86	'customize_selective_refresh' => true,
87	);
88
89	parent::__construct( $this->widget_id, $this->widget_name, $widget_ops );
90
91	}
92
93	/**
94	* Output the html at the start of a widget.
95	*
96	* @param array $args Widget arguments.
97	* @param array $instance Widget settings.
98	*/
99	public function widget_start( $args, $instance ) {
100	echo $args['before_widget'];
101	$title = apply_filters( 'widget_title', empty( $instance['title'] ) ? '' : $instance['title'], $instance, $this->id_base );
102	if ( $title ) {
103	echo $args['before_title'] . $title . $args['after_title'];
104	}
105	}
106
107	/**
108	* Output the html at the end of a widget.
109	*
110	* @param array $args After widget setting.
111	*/
112	public function widget_end( $args ) {
113	echo $args['after_widget'];
114	}
115
116	/**
117	* Output widget.
118	*
119	* @see WP_Widget
120	*
121	* @param array $args Widget arguments.
122	* @param array $instance Widget settings.
123	*/
124	public function widget( $args, $instance ) {
125
126	if ( ! isset( $instance['form'] ) ) {
127	return;
128	}
129
130	$api = WP_ConvertKit::get_api();
131	$form_id = $instance['form'];
132	$forms = get_option( 'convertkit_forms' );
133
134	if ( isset( $forms[ $form_id ]['uid'] ) ) {
135	// new form
136	$tag = '<script async data-uid="' . $forms[ $form_id ]['uid'] . '" src="' . $forms[ $form_id ]['embed_js'] . '"></script>';
137	echo $tag;
138	} else {
139	// old form
140	$url = add_query_arg( array(
141	'api_key' => WP_ConvertKit::get_api_key(),
142	'v' => WP_ConvertKit::get_forms_version(),
143	),
144	'https://forms.convertkit.com/' . $form_id . '.html'
145	);
146
147	$form_markup = $api->get_resource( $url );
148
149	if ( $api && ! is_wp_error( $api ) ) {
150	ob_start();
151
152	$this->widget_start( $args, $instance );
153	echo $form_markup;
154	$this->widget_end( $args );
155
156	$content = ob_get_clean();
157
158	echo $content;
159	}
160	}
161	}
162
163	/**
164	* Outputs the settings update form.
165	*
166	* @param array $instance Widget settings.
167	* @return null
168	*/
169	public function form( $instance ) {
170
171	if ( empty( $this->settings ) ) {
172	return;
173	}
174
175	foreach ( $this->settings as $key => $setting ) {
176
177	$class = isset( $setting['class'] ) ? $setting['class'] : '';
178	$value = isset( $instance[ $key ] ) ? $instance[ $key ] : $setting['std'];
179
180	switch ( $setting['type'] ) {
181
182	case 'text' :
183	?>
184	<p>
185	<label for="<?php echo $this->get_field_id( $key ); ?>"><?php echo $setting['label']; ?></label>
186	<input class="widefat <?php echo esc_attr( $class ); ?>" id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>" name="<?php echo $this->get_field_name( $key ); ?>" type="text" value="<?php echo esc_attr( $value ); ?>" />
187	</p>
188	<?php
189	break;
190
191	case 'number' :
192	?>
193	<p>
194	<label for="<?php echo $this->get_field_id( $key ); ?>"><?php echo $setting['label']; ?></label>
195	<input class="widefat <?php echo esc_attr( $class ); ?>" id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>" name="<?php echo $this->get_field_name( $key ); ?>" type="number" step="<?php echo esc_attr( $setting['step'] ); ?>" min="<?php echo esc_attr( $setting['min'] ); ?>" max="<?php echo esc_attr( $setting['max'] ); ?>" value="<?php echo esc_attr( $value ); ?>" />
196	</p>
197	<?php
198	break;
199
200	case 'select' :
201	if ( empty( $setting['options'] ) ) {
202	$query_args = array(
203	'page' => WP_ConvertKit::SETTINGS_PAGE_SLUG,
204	);
205	$settings_page_url = add_query_arg( $query_args, admin_url( 'options-general.php' ) );
206	?>
207	<p><?php echo __( 'No forms were returned from ConvertKit.','convertkit' ); ?></p>
208	<?php /* translators: 1: settings page url */ ?>
209	<p><?php echo sprintf( __( 'Please check the <a href="%s">settings</a>.','convertkit' ), $settings_page_url ); ?></p>
210	<?php
211	} else {
212	?>
213	<p>
214	<label
215	for="<?php echo $this->get_field_id( $key ); ?>"><?php echo $setting['label']; ?></label>
216	<select class="widefat <?php echo esc_attr( $class ); ?>"
217	id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>"
218	name="<?php echo $this->get_field_name( $key ); ?>">
219	<?php foreach ( $setting['options'] as $option_key => $option_value ) : ?>
220	<option
221	value="<?php echo esc_attr( $option_key ); ?>" <?php selected( $option_key, $value ); ?>><?php echo esc_html( $option_value['name'] ); ?></option>
222	<?php endforeach; ?>
223	</select>
224	</p>
225	<?php
226	}
227	break;
228
229	case 'textarea' :
230	?>
231	<p>
232	<label for="<?php echo $this->get_field_id( $key ); ?>"><?php echo $setting['label']; ?></label>
233	<textarea class="widefat <?php echo esc_attr( $class ); ?>" id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>" name="<?php echo $this->get_field_name( $key ); ?>" cols="20" rows="3"><?php echo esc_textarea( $value ); ?></textarea>
234	<?php if ( isset( $setting['desc'] ) ) : ?>
235	<small><?php echo esc_html( $setting['desc'] ); ?></small>
236	<?php endif; ?>
237	</p>
238	<?php
239	break;
240
241	case 'checkbox' :
242	?>
243	<p>
244	<input class="checkbox <?php echo esc_attr( $class ); ?>" id="<?php echo esc_attr( $this->get_field_id( $key ) ); ?>" name="<?php echo esc_attr( $this->get_field_name( $key ) ); ?>" type="checkbox" value="1" <?php checked( $value, 1 ); ?> />
245	<label for="<?php echo $this->get_field_id( $key ); ?>"><?php echo $setting['label']; ?></label>
246	</p>
247	<?php
248	break;
249	} // End switch().
250	} // End foreach().
251	}
252
253	/**
254	* Updates a particular instance of a widget.
255	*
256	* @see WP_Widget->update
257	* @param array $new_instance Updated widget settings.
258	* @param array $old_instance Original widget settings.
259	* @return array
260	*/
261	public function update( $new_instance, $old_instance ) {
262
263	$instance = $old_instance;
264
265	if ( empty( $this->settings ) ) {
266	return $instance;
267	}
268
269	// Loop settings and get values to save.
270	foreach ( $this->settings as $key => $setting ) {
271	if ( ! isset( $setting['type'] ) ) {
272	continue;
273	}
274
275	// Format the value based on settings type.
276	switch ( $setting['type'] ) {
277	case 'number' :
278	$instance[ $key ] = absint( $new_instance[ $key ] );
279
280	if ( isset( $setting['min'] ) && '' !== $setting['min'] ) {
281	$instance[ $key ] = max( $instance[ $key ], $setting['min'] );
282	}
283
284	if ( isset( $setting['max'] ) && '' !== $setting['max'] ) {
285	$instance[ $key ] = min( $instance[ $key ], $setting['max'] );
286	}
287	break;
288	case 'textarea' :
289	$instance[ $key ] = wp_kses( trim( wp_unslash( $new_instance[ $key ] ) ), wp_kses_allowed_html( 'post' ) );
290	break;
291	case 'checkbox' :
292	$instance[ $key ] = empty( $new_instance[ $key ] ) ? 0 : 1;
293	break;
294	default:
295	$instance[ $key ] = sanitize_text_field( $new_instance[ $key ] );
296	break;
297	}
298	}
299
300	return $instance;
301	}
302
303	}
304