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Edit File: class.checkbox.php

<?php
/**
 * @package mw-wp-form
 * @author websoudan
 * @license GPL-2.0+
 */

/**
 * MW_WP_Form_Field_Checkbox
 */
class MW_WP_Form_Field_Checkbox extends MW_WP_Form_Abstract_Form_Field {

/**
	 * Types of form type.
	 * input|select|button|input_button|error|other.
	 *
	 * @var string
	 */
	public $type = 'select';

/**
	 * Set shortcode_name and display_name.
	 * Overwrite required for each child class.
	 *
	 * @return array
	 */
	protected function set_names() {
		return array(
			'shortcode_name' => 'mwform_checkbox',
			'display_name'   => __( 'Checkbox', 'mw-wp-form' ),
		);
	}

/**
	 * Set default attributes.
	 *
	 * @return array
	 */
	protected function set_defaults() {
		return array(
			'name'       => '',
			'id'         => null,
			'class'      => null,
			'children'   => '',
			'value'      => null,
			'vertically' => null,
			'post_raw'   => 'false',
			'show_error' => 'true',
			'separator'  => ',',
		);
	}

/**
	 * Callback of add shortcode for input page.
	 *
	 * @return string
	 */
	protected function input_page() {
		$value = $this->Data->get_raw( $this->atts['name'] );
		if ( is_null( $value ) ) {
			$value = $this->atts['value'];
		}
		$children  = $this->get_children( $this->atts['children'] );
		$separator = ( $this->atts['separator'] ) ? $this->atts['separator'] : $this->defaults['separator'];

$_ret = $this->Form->checkbox(
			$this->atts['name'],
			$children,
			array(
				'id'         => $this->atts['id'],
				'class'      => $this->atts['class'],
				'value'      => $value,
				'vertically' => $this->atts['vertically'],
			),
			$separator
		);
		if ( 'false' === $this->atts['post_raw'] ) {
			$_ret .= $this->Form->children( $this->atts['name'], $children );
		}
		if ( 'false' !== $this->atts['show_error'] ) {
			$_ret .= $this->get_error( $this->atts['name'] );
		}
		return $_ret;
	}

/**
	 * Callback of add shortcode for confirm page.
	 *
	 * @return string
	 */
	protected function confirm_page() {
		$children     = $this->get_children( $this->atts['children'] );
		$value        = $this->Data->get( $this->atts['name'], $children );
		$posted_value = $this->Data->get_raw( $this->atts['name'] );
		$separator    = $this->Data->get_separator_value( $this->atts['name'] );
		$_ret         = esc_html( $value );
		if ( ! is_null( $value ) ) {
			$_ret .= $this->Form->hidden( $this->atts['name'] . '[data]', $posted_value );
			$_ret .= $this->Form->separator( $this->atts['name'], $separator );
		}
		if ( 'false' === $this->atts['post_raw'] ) {
			$_ret .= $this->Form->children( $this->atts['name'], $children );
		}
		return $_ret;
	}

/**
	 * Display tag generator dialog.
	 * Overwrite required for each child class.
	 *
	 * @param array $options Options.
	 */
	public function mwform_tag_generator_dialog( array $options = array() ) {
		?>
		<p>
			<strong>name<span class="mwf_require">*</span></strong>
			<?php $name = $this->get_value_for_generator( 'name', $options ); ?>
			<input type="text" name="name" value="<?php echo esc_attr( $name ); ?>" />
		</p>
		<p>
			<strong>id</strong>
			<?php $id = $this->get_value_for_generator( 'id', $options ); ?>
			<input type="text" name="id" value="<?php echo esc_attr( $id ); ?>" />
		</p>
		<p>
			<strong>class</strong>
			<?php $class = $this->get_value_for_generator( 'class', $options ); ?>
			<input type="text" name="class" value="<?php echo esc_attr( $class ); ?>" />
		</p>
		<p>
			<strong><?php esc_html_e( 'Choices', 'mw-wp-form' ); ?><span class="mwf_require">*</span></strong>
			<?php $children = "\n" . $this->get_value_for_generator( 'children', $options ); ?>
			<textarea name="children"><?php echo esc_attr( $children ); ?></textarea>
			<span class="mwf_note">
				<?php esc_html_e( 'Input one line about one item.', 'mw-wp-form' ); ?>
				<?php esc_html_e( 'Example: value1&crarr;value2 or key1:value1&crarr;key2:value2', 'mw-wp-form' ); ?><br />
				<?php esc_html_e( 'You can split the post value and display value by ":". But display value is sent in e-mail.', 'mw-wp-form' ); ?><br />
				<?php esc_html_e( 'When you want to use ":", please enter "::".', 'mw-wp-form' ); ?>
			</span>
		</p>
		<p>
			<strong><?php esc_html_e( 'Send value by e-mail', 'mw-wp-form' ); ?></strong>
			<?php $value = $this->get_value_for_generator( 'value', $options ); ?>
			<?php $post_raw = $this->get_value_for_generator( 'post_raw', $options ); ?>
			<label><input type="checkbox" name="post_raw" value="true" <?php checked( 'true', $post_raw ); ?> /> <?php esc_html_e( 'Send post value when you split the post value and display value by ":" in choices.', 'mw-wp-form' ); ?></label>
		</p>
		<p>
			<strong><?php esc_html_e( 'Default value', 'mw-wp-form' ); ?></strong>
			<?php $value = $this->get_value_for_generator( 'value', $options ); ?>
			<input type="text" name="value" value="<?php echo esc_attr( $value ); ?>" />
		</p>
		<p>
			<strong><?php esc_html_e( 'Separator string', 'mw-wp-form' ); ?></strong>
			<?php $separator = $this->get_value_for_generator( 'separator', $options ); ?>
			<input type="text" name="separator" size="10" value="<?php echo esc_attr( $separator ); ?>" />
		</p>
		<p>
			<strong><?php esc_html_e( 'Display method', 'mw-wp-form' ); ?></strong>
			<?php $vertically = $this->get_value_for_generator( 'vertically', $options ); ?>
			<label><input type="checkbox" name="vertically" value="true" <?php checked( 'true', $vertically ); ?> /> <?php esc_html_e( 'Arranged vertically.', 'mw-wp-form' ); ?></label>
		</p>
		<p>
			<strong><?php esc_html_e( 'Display error', 'mw-wp-form' ); ?></strong>
			<?php $show_error = $this->get_value_for_generator( 'show_error', $options ); ?>
			<label><input type="checkbox" name="show_error" value="false" <?php checked( 'false', $show_error ); ?> /> <?php esc_html_e( 'Don\'t display error.', 'mw-wp-form' ); ?></label>
		</p>
		<?php
	}
}