| 1 |
<?php |
| 2 |
namespace WP_Stream; |
| 3 |
|
| 4 |
class Form_Generator { |
| 5 |
|
| 6 |
/** |
| 7 |
* List of all registered fields. |
| 8 |
* |
| 9 |
* @var array |
| 10 |
*/ |
| 11 |
public $fields = array(); |
| 12 |
|
| 13 |
/** |
| 14 |
* Adds a new field to the form. |
| 15 |
* |
| 16 |
* @param string $field_type The type of field being added. |
| 17 |
* @param array $args Options for the field. See render_field(). |
| 18 |
* @return void |
| 19 |
*/ |
| 20 |
public function add_field( $field_type, $args ) { |
| 21 |
$this->fields[] = array( |
| 22 |
'type' => $field_type, |
| 23 |
'args' => $args, |
| 24 |
); |
| 25 |
} |
| 26 |
|
| 27 |
/** |
| 28 |
* Renders all fields currently registered. |
| 29 |
* |
| 30 |
* @return string |
| 31 |
*/ |
| 32 |
public function render_fields() { |
| 33 |
$output = ''; |
| 34 |
foreach ( $this->fields as $data ) { |
| 35 |
$output .= $this->render_field( $data['type'], $data['args'] ); |
| 36 |
} |
| 37 |
return $output; |
| 38 |
} |
| 39 |
|
| 40 |
/** |
| 41 |
* Renders all fields currently registered as a table. |
| 42 |
* |
| 43 |
* @return string |
| 44 |
*/ |
| 45 |
public function render_fields_table() { |
| 46 |
$output = '<table class="form-table">'; |
| 47 |
foreach ( $this->fields as $data ) { |
| 48 |
$title = ( array_key_exists( 'title', $data['args'] ) ) ? $data['args']['title'] : ''; |
| 49 |
|
| 50 |
$output .= '<tr><th>' . $title . '</th><td>'; |
| 51 |
$output .= $this->render_field( $data['type'], $data['args'] ); |
| 52 |
$output .= '</td><tr>'; |
| 53 |
} |
| 54 |
$output .= '</table>'; |
| 55 |
return $output; |
| 56 |
} |
| 57 |
|
| 58 |
/** |
| 59 |
* Renders a single field. |
| 60 |
* |
| 61 |
* @param string $field_type The type of field being rendered. |
| 62 |
* @param array $args The options for the field type. |
| 63 |
* |
| 64 |
* @return string |
| 65 |
*/ |
| 66 |
public function render_field( $field_type, $args ) { |
| 67 |
$args = wp_parse_args( $args, array( |
| 68 |
'name' => '', |
| 69 |
'value' => '', |
| 70 |
'options' => array(), |
| 71 |
'description' => '', |
| 72 |
'classes' => '', |
| 73 |
'data' => array(), |
| 74 |
'multiple' => false, |
| 75 |
) ); |
| 76 |
|
| 77 |
$output = ''; |
| 78 |
switch ( $field_type ) { |
| 79 |
case 'text': |
| 80 |
$output = sprintf( |
| 81 |
'<input type="text" name="%1$s" id="%1$s" class="%2$s" value="%3$s" />', |
| 82 |
esc_attr( $args['name'] ), |
| 83 |
esc_attr( $args['classes'] ), |
| 84 |
esc_attr( $args['value'] ) |
| 85 |
); |
| 86 |
break; |
| 87 |
case 'hidden': |
| 88 |
$output = sprintf( |
| 89 |
'<input type="hidden" name="%1$s" id="%1$s" class="%2$s" value="%3$s" />', |
| 90 |
esc_attr( $args['name'] ), |
| 91 |
esc_attr( $args['classes'] ), |
| 92 |
esc_attr( $args['value'] ) |
| 93 |
); |
| 94 |
break; |
| 95 |
case 'select': |
| 96 |
$current_value = $args['value']; |
| 97 |
|
| 98 |
$output = sprintf( |
| 99 |
'<select name="%1$s" class="%2$s" id="%1$s">', |
| 100 |
esc_attr( $args['name'] ), |
| 101 |
esc_attr( $args['classes'] ) |
| 102 |
); |
| 103 |
|
| 104 |
foreach ( $args['options'] as $value => $label ) { |
| 105 |
$output .= sprintf( |
| 106 |
'<option value="%1$s" %2$s>%3$s</option>', |
| 107 |
esc_attr( $value ), |
| 108 |
selected( $value === $current_value, true, false ), |
| 109 |
esc_html( $label ) |
| 110 |
); |
| 111 |
} |
| 112 |
$output .= '</select>'; |
| 113 |
break; |
| 114 |
case 'select2': |
| 115 |
$values = array(); |
| 116 |
|
| 117 |
$multiple = ( $args['multiple'] ) ? 'multiple ' : ''; |
| 118 |
$output = sprintf( |
| 119 |
'<select name="%1$s" id="%1$s" class="select2-select %2$s" %3$s%4$s>', |
| 120 |
esc_attr( $args['name'] ), |
| 121 |
esc_attr( $args['classes'] ), |
| 122 |
$this->prepare_data_attributes_string( $args['data'] ), |
| 123 |
$multiple |
| 124 |
); |
| 125 |
|
| 126 |
if ( array_key_exists( 'placeholder', $args['data'] ) && ! $multiple ) { |
| 127 |
$output .= '<option value=""></option>'; |
| 128 |
} |
| 129 |
|
| 130 |
foreach ( $args['options'] as $parent ) { |
| 131 |
$parent = wp_parse_args( $parent, array( |
| 132 |
'value' => '', |
| 133 |
'text' => '', |
| 134 |
'children' => array(), |
| 135 |
) ); |
| 136 |
if ( empty( $parent['id'] ) ) { |
| 137 |
continue; |
| 138 |
} |
| 139 |
if ( is_array( $args['value'] ) ) { |
| 140 |
$selected = selected( in_array( $parent['id'], $args['value'], true ), true, false ); |
| 141 |
} else { |
| 142 |
$selected = selected( $args['value'], $parent['id'], false ); |
| 143 |
} |
| 144 |
$output .= sprintf( |
| 145 |
'<option class="parent" value="%1$s" %3$s>%2$s</option>', |
| 146 |
$parent['id'], |
| 147 |
$parent['text'], |
| 148 |
$selected |
| 149 |
); |
| 150 |
$values[] = $parent['id']; |
| 151 |
if ( ! empty( $parent['children'] ) ) { |
| 152 |
foreach ( $parent['children'] as $child ) { |
| 153 |
$output .= sprintf( |
| 154 |
'<option class="child" value="%1$s" %3$s>%2$s</option>', |
| 155 |
$child['id'], |
| 156 |
$child['text'], |
| 157 |
selected( $args['value'], $child['id'], false ) |
| 158 |
); |
| 159 |
$values[] = $child['id']; |
| 160 |
} |
| 161 |
$output .= '</optgroup>'; |
| 162 |
} |
| 163 |
} |
| 164 |
|
| 165 |
$selected_values = explode( ',', $args['value'] ); |
| 166 |
foreach ( $selected_values as $selected_value ) { |
| 167 |
if ( ! empty( $selected_value ) && ! in_array( $selected_value, array_map( 'strval', $values ), true ) ) { |
| 168 |
$output .= sprintf( |
| 169 |
'<option value="%1$s" %2$s>%1$s</option>', |
| 170 |
$selected_value, |
| 171 |
selected( true, true, false ) |
| 172 |
); |
| 173 |
} |
| 174 |
} |
| 175 |
|
| 176 |
$output .= '</select>'; |
| 177 |
break; |
| 178 |
case 'checkbox': |
| 179 |
$output = sprintf( |
| 180 |
'<input type="checkbox" name="%1$s" id="%1$s" value="1" %3$s>%2$s', |
| 181 |
$args['name'], |
| 182 |
$args['text'], |
| 183 |
checked( $args['value'], true, false ) |
| 184 |
); |
| 185 |
break; |
| 186 |
default: |
| 187 |
$output = apply_filters( 'wp_stream_form_render_field', $output, $field_type, $args ); |
| 188 |
break; |
| 189 |
} |
| 190 |
|
| 191 |
$output .= ! empty( $args['description'] ) ? wp_kses_post( sprintf( '<p class="description">%s</p>', $args['description'] ) ) : null; |
| 192 |
|
| 193 |
return $output; |
| 194 |
} |
| 195 |
|
| 196 |
/** |
| 197 |
* Prepares string with HTML data attributes |
| 198 |
* |
| 199 |
* @param array $data List of key/value data pairs to prepare. |
| 200 |
* @return string |
| 201 |
*/ |
| 202 |
public function prepare_data_attributes_string( $data ) { |
| 203 |
$output = ''; |
| 204 |
foreach ( $data as $key => $value ) { |
| 205 |
$key = 'data-' . esc_attr( $key ); |
| 206 |
$output .= $key . '="' . esc_attr( $value ) . '" '; |
| 207 |
} |
| 208 |
return $output; |
| 209 |
} |
| 210 |
} |
| 211 |
|
