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C:\xampp\htdocs\landing\wp-content\plugins\wpforms-lite\includes\fields\class-checkbox.php

<?php

/**
 * Checkbox field.
 *
 * @since 1.0.0
 */
class WPForms_Field_Checkbox extends WPForms_Field {

    /**
     * Primary class constructor.
     *
     * @since 1.0.0
     */
    public function init() {

        // Define field type information.
        $this->name     = esc_html__( 'Checkboxes', 'wpforms-lite' );
        $this->type     = 'checkbox';
        $this->icon     = 'fa-check-square-o';
        $this->order    = 110;
        $this->defaults = array(
            1 => array(
                'label'   => esc_html__( 'First Choice', 'wpforms-lite' ),
                'value'   => '',
                'image'   => '',
                'default' => '',
            ),
            2 => array(
                'label'   => esc_html__( 'Second Choice', 'wpforms-lite' ),
                'value'   => '',
                'image'   => '',
                'default' => '',
            ),
            3 => array(
                'label'   => esc_html__( 'Third Choice', 'wpforms-lite' ),
                'value'   => '',
                'image'   => '',
                'default' => '',
            ),
        );

        // Customize HTML field values.
        add_filter( 'wpforms_html_field_value', array( $this, 'field_html_value' ), 10, 4 );

        // Define additional field properties.
        add_filter( 'wpforms_field_properties_checkbox', array( $this, 'field_properties' ), 5, 3 );
    }

    /**
     * Return images, if any, for HTML supported values.
     *
     * @since 1.4.5
     *
     * @param string $value     Field value.
     * @param array  $field     Field settings.
     * @param array  $form_data Form data and settings.
     * @param string $context   Value display context.
     *
     * @return string
     */
    public function field_html_value( $value, $field, $form_data = array(), $context = '' ) {

        // Only use HTML formatting for checkbox fields, with image choices
        // enabled, and exclude the entry table display. Lastly, provides a
        // filter to disable fancy display.
        if (
            ! empty( $field['value'] ) &&
            $this->type === $field['type'] &&
            ! empty( $field['images'] ) &&
            'entry-table' !== $context &&
            apply_filters( 'wpforms_checkbox_field_html_value_images', true, $context )
        ) {

            $items  = array();
            $values = explode( "\n", $field['value'] );

            foreach ( $values as $key => $val ) {

                if ( ! empty( $field['images'][ $key ] ) ) {
                    $items[] = sprintf(
                        '<span style="max-width:200px;display:block;margin:0 0 5px 0;"><img src="%s" style="max-width:100%%;display:block;margin:0;"></span>%s',
                        esc_url( $field['images'][ $key ] ),
                        $val
                    );
                } else {
                    $items[] = $val;
                }
            }

            return implode( '<br><br>', $items );
        }

        return $value;
    }

    /**
     * Define additional field properties.
     *
     * @since 1.4.5
     *
     * @param array $properties Field properties.
     * @param array $field      Field settings.
     * @param array $form_data  Form data and settings.
     *
     * @return array
     */
    public function field_properties( $properties, $field, $form_data ) {

        // Define data.
        $form_id  = absint( $form_data['id'] );
        $field_id = absint( $field['id'] );
        $choices  = $field['choices'];
        $dynamic  = wpforms_get_field_dynamic_choices( $field, $form_id, $form_data );

        if ( $dynamic ) {
            $choices              = $dynamic;
            $field['show_values'] = true;
        }

        // Remove primary input.
        unset( $properties['inputs']['primary'] );

        // Set input container (ul) properties.
        $properties['input_container'] = array(
            'class' => array( ! empty( $field['random'] ) ? 'wpforms-randomize' : '' ),
            'data'  => array(),
            'attr'  => array(),
            'id'    => "wpforms-{$form_id}-field_{$field_id}",
        );

        $field['choice_limit'] = empty( $field['choice_limit'] ) ? 0 : (int) $field['choice_limit'];
        if ( $field['choice_limit'] > 0 ) {
            $properties['input_container']['data']['choice-limit'] = $field['choice_limit'];
        }

        // Set input properties.
        foreach ( $choices as $key => $choice ) {

            // Used for dynamic choices.
            $depth = isset( $choice['depth'] ) ? absint( $choice['depth'] ) : 1;

            // Choice labels should not be left blank, but if they are we
            // provide a basic value.
            $value = isset( $field['show_values'] ) ? $choice['value'] : $choice['label'];
            if ( '' === $value ) {
                if ( 1 === count( $choices ) ) {
                    $value = esc_html__( 'Checked', 'wpforms-lite' );
                } else {
                    /* translators: %s - choice number. */
                    $value = sprintf( esc_html__( 'Choice %s', 'wpforms-lite' ), $key );
                }
            }

            $properties['inputs'][ $key ] = array(
                'container' => array(
                    'attr'  => array(),
                    'class' => array( "choice-{$key}", "depth-{$depth}" ),
                    'data'  => array(),
                    'id'    => '',
                ),
                'label'     => array(
                    'attr'  => array(
                        'for' => "wpforms-{$form_id}-field_{$field_id}_{$key}",
                    ),
                    'class' => array( 'wpforms-field-label-inline' ),
                    'data'  => array(),
                    'id'    => '',
                    'text'  => $choice['label'],
                ),
                'attr'      => array(
                    'name'  => "wpforms[fields][{$field_id}][]",
                    'value' => $value,
                ),
                'class'     => array(),
                'data'      => array(),
                'id'        => "wpforms-{$form_id}-field_{$field_id}_{$key}",
                'image'     => isset( $choice['image'] ) ? $choice['image'] : '',
                'required'  => ! empty( $field['required'] ) ? 'required' : '',
                'default'   => isset( $choice['default'] ),
            );

            // Rule for validator only if needed.
            if ( $field['choice_limit'] > 0 ) {
                $properties['inputs'][ $key ]['data']['rule-check-limit'] = 'true';
            }
        }

        // Required class for pagebreak validation.
        if ( ! empty( $field['required'] ) ) {
            $properties['input_container']['class'][] = 'wpforms-field-required';
        }

        // Custom properties if image choices is enabled.
        if ( ! $dynamic && ! empty( $field['choices_images'] ) ) {

            $properties['input_container']['class'][] = 'wpforms-image-choices';
            $properties['input_container']['class'][] = 'wpforms-image-choices-' . sanitize_html_class( $field['choices_images_style'] );

            foreach ( $properties['inputs'] as $key => $inputs ) {
                $properties['inputs'][ $key ]['container']['class'][] = 'wpforms-image-choices-item';

                if ( in_array( $field['choices_images_style'], array( 'modern', 'classic' ), true ) ) {
                    $properties['inputs'][ $key ]['class'][] = 'wpforms-screen-reader-element';
                }
            }
        }

        // Custom properties for disclaimer format display.
        if ( ! empty( $field['disclaimer_format'] ) ) {

            $properties['description']['class'][] = 'wpforms-disclaimer-description';
            $properties['description']['value']   = nl2br( $properties['description']['value'] );
        }

        // Add selected class for choices with defaults.
        foreach ( $properties['inputs'] as $key => $inputs ) {
            if ( ! empty( $inputs['default'] ) ) {
                $properties['inputs'][ $key ]['container']['class'][] = 'wpforms-selected';
            }
        }

        return $properties;
    }

    /**
     * Field options panel inside the builder.
     *
     * @since 1.0.0
     *
     * @param array $field Field settings.
     */
    public function field_options( $field ) {
        /*
         * Basic field options.
         */

        // Options open markup.
        $this->field_option(
            'basic-options',
            $field,
            array(
                'markup' => 'open',
            )
        );

        // Label.
        $this->field_option( 'label', $field );

        // Choices.
        $this->field_option( 'choices', $field );

        // Choices Images.
        $this->field_option( 'choices_images', $field );

        // Description.
        $this->field_option( 'description', $field );

        // Required toggle.
        $this->field_option( 'required', $field );

        // Options close markup.
        $this->field_option(
            'basic-options',
            $field,
            array(
                'markup' => 'close',
            )
        );

        /*
         * Advanced field options
         */

        // Options open markup.
        $this->field_option(
            'advanced-options',
            $field,
            array(
                'markup' => 'open',
            )
        );

        // Randomize order of choices.
        $this->field_element(
            'row',
            $field,
            array(
                'slug'    => 'random',
                'content' => $this->field_element(
                    'checkbox',
                    $field,
                    array(
                        'slug'    => 'random',
                        'value'   => isset( $field['random'] ) ? '1' : '0',
                        'desc'    => esc_html__( 'Randomize Choices', 'wpforms-lite' ),
                        'tooltip' => esc_html__( 'Check this option to randomize the order of the choices.', 'wpforms-lite' ),
                    ),
                    false
                ),
            )
        );

        // Show Values toggle option. This option will only show if already used
        // or if manually enabled by a filter.
        if ( ! empty( $field['show_values'] ) || wpforms_show_fields_options_setting() ) {
            $this->field_element(
                'row',
                $field,
                array(
                    'slug'    => 'show_values',
                    'content' => $this->field_element(
                        'checkbox',
                        $field,
                        array(
                            'slug'    => 'show_values',
                            'value'   => isset( $field['show_values'] ) ? $field['show_values'] : '0',
                            'desc'    => esc_html__( 'Show Values', 'wpforms-lite' ),
                            'tooltip' => esc_html__( 'Check this to manually set form field values.', 'wpforms-lite' ),
                        ),
                        false
                    ),
                )
            );
        }

        // Choices Images Style (theme).
        $this->field_option( 'choices_images_style', $field );

        // Display format.
        $this->field_option( 'input_columns', $field );

        // Choice Limit.
        $field['choice_limit'] = empty( $field['choice_limit'] ) ? 0 : (int) $field['choice_limit'];
        $this->field_element(
            'row',
            $field,
            array(
                'slug'    => 'choice_limit',
                'content' =>
                    $this->field_element(
                        'label',
                        $field,
                        array(
                            'slug'    => 'choice_limit',
                            'value'   => esc_html__( 'Choice Limit', 'wpforms-lite' ),
                            'tooltip' => esc_html__( 'Limit the number of checkboxes a user can select. Leave empty for unlimited.', 'wpforms-lite' ),
                        ),
                        false
                    ) . $this->field_element(
                        'text',
                        $field,
                        array(
                            'slug'  => 'choice_limit',
                            'value' => $field['choice_limit'] > 0 ? $field['choice_limit'] : '',
                            'type'  => 'number',
                        ),
                        false
                    ),
            )
        );

        // Hide label.
        $this->field_option( 'label_hide', $field );

        // Custom CSS classes.
        $this->field_option( 'css', $field );

        // Dynamic choice auto-populating toggle.
        $this->field_option( 'dynamic_choices', $field );

        // Dynamic choice source.
        $this->field_option( 'dynamic_choices_source', $field );

        // Enable Disclaimer formatting.
        $this->field_element(
            'row',
            $field,
            array(
                'slug'    => 'disclaimer_format',
                'content' => $this->field_element(
                    'checkbox',
                    $field,
                    array(
                        'slug'    => 'disclaimer_format',
                        'value'   => isset( $field['disclaimer_format'] ) ? '1' : '0',
                        'desc'    => esc_html__( 'Enable Disclaimer / Terms of Service Display', 'wpforms-lite' ),
                        'tooltip' => esc_html__( 'Check this option to adjust the field styling to support Disclaimers and Terms of Service type agreements.', 'wpforms-lite' ),
                    ),
                    false
                ),
            )
        );

        // Options close markup.
        $this->field_option(
            'advanced-options',
            $field,
            array(
                'markup' => 'close',
            )
        );
    }

    /**
     * Field preview inside the builder.
     *
     * @since 1.0.0
     *
     * @param array $field Field settings.
     */
    public function field_preview( $field ) {

        // Label.
        $this->field_preview_option( 'label', $field );

        // Choices.
        $this->field_preview_option( 'choices', $field );

        // Description.
        $this->field_preview_option(
            'description',
            $field,
            array(
                'class' => ! empty( $field['disclaimer_format'] ) ? 'disclaimer nl2br' : false,
            )
        );
    }

    /**
     * Field display on the form front-end.
     *
     * @since 1.0.0
     *
     * @param array $field      Field settings.
     * @param array $deprecated Deprecated array.
     * @param array $form_data  Form data and settings.
     */
    public function field_display( $field, $deprecated, $form_data ) {
        $using_image_choices = empty( $field['dynamic_choices'] ) && ! empty( $field['choices_images'] );

        // Define data.
        $container = $field['properties']['input_container'];
        $choices   = $field['properties']['inputs'];

        $amp_state_id = '';
        if ( wpforms_is_amp() && $using_image_choices ) {
            $amp_state_id = str_replace( '-', '_', sanitize_key( $container['id'] ) ) . '_state';
            $state        = array();
            foreach ( $choices as $key => $choice ) {
                $state[ $choice['id'] ] = ! empty( $choice['default'] );
            }
            printf(
                '<amp-state id="%s"><script type="application/json">%s</script></amp-state>',
                esc_attr( $amp_state_id ),
                wp_json_encode( $state )
            );
        }

        printf(
            '<ul %s>',
            wpforms_html_attributes( $container['id'], $container['class'], $container['data'], $container['attr'] )
        );

            foreach ( $choices as $key => $choice ) {

                if ( wpforms_is_amp() && $using_image_choices ) {
                    $choice['container']['attr']['[class]'] = sprintf(
                        '%s + ( %s[%s] ? " wpforms-selected" : "")',
                        wp_json_encode( implode( ' ', $choice['container']['class'] ) ),
                        $amp_state_id,
                        wp_json_encode( $choice['id'] )
                    );
                }

                // If the field is required, has the label hidden, and has
                // disclaimer mode enabled, so the required status in choice
                // label.
                $required = '';
                if ( ! empty( $field['disclaimer_format'] ) && ! empty( $choice['required'] ) && ! empty( $field['label_hide'] ) ) {
                    $required = wpforms_get_field_required_label();
                }

                printf(
                    '<li %s>',
                    wpforms_html_attributes( $choice['container']['id'], $choice['container']['class'], $choice['container']['data'], $choice['container']['attr'] )
                );

                    // The required constraint in HTML5 form validation does not work with checkbox groups, so omit in AMP.
                    $required_attr = wpforms_is_amp() && count( $choices ) > 1 ? '' : $choice['required'];

                    if ( $using_image_choices ) {

                        // Make sure the image choices are keyboard-accessible.
                        $choice['label']['attr']['tabindex'] = 0;

                        if ( wpforms_is_amp() ) {
                            $choice['label']['attr']['on']   = sprintf(
                                'tap:AMP.setState({ %s: { %s: ! %s[%s] } })',
                                wp_json_encode( $amp_state_id ),
                                wp_json_encode( $choice['id'] ),
                                $amp_state_id,
                                wp_json_encode( $choice['id'] )
                            );
                            $choice['label']['attr']['role'] = 'button';
                        }

                        // Image choices.
                        printf(
                            '<label %s>',
                            wpforms_html_attributes( $choice['label']['id'], $choice['label']['class'], $choice['label']['data'], $choice['label']['attr'] )
                        );

                            if ( ! empty( $choice['image'] ) ) {
                                printf(
                                    '<span class="wpforms-image-choices-image"><img src="%s" alt="%s"%s></span>',
                                    esc_url( $choice['image'] ),
                                    esc_attr( $choice['label']['text'] ),
                                    ! empty( $choice['label']['text'] ) ? ' title="' . esc_attr( $choice['label']['text'] ) . '"' : ''
                                );
                            }

                            if ( 'none' === $field['choices_images_style'] ) {
                                echo '<br>';
                            }

                            $choice['attr']['tabindex'] = '-1';

                            if ( wpforms_is_amp() ) {
                                $choice['attr']['[checked]'] = sprintf(
                                    '%s[%s]',
                                    $amp_state_id,
                                    wp_json_encode( $choice['id'] )
                                );
                            }

                            printf(
                                '<input type="checkbox" %s %s %s>',
                                wpforms_html_attributes( $choice['id'], $choice['class'], $choice['data'], $choice['attr'] ),
                                esc_attr( $required_attr ),
                                checked( '1', $choice['default'], false )
                            );

                            echo '<span class="wpforms-image-choices-label">' . wp_kses_post( $choice['label']['text'] ) . '</span>';

                        echo '</label>';

                    } else {

                        // Normal display.
                        printf(
                            '<input type="checkbox" %s %s %s>',
                            wpforms_html_attributes( $choice['id'], $choice['class'], $choice['data'], $choice['attr'] ),
                            esc_attr( $required_attr ),
                            checked( '1', $choice['default'], false )
                        );

                        printf(
                            '<label %s>%s%s</label>',
                            wpforms_html_attributes( $choice['label']['id'], $choice['label']['class'], $choice['label']['data'], $choice['label']['attr'] ),
                            wp_kses_post( $choice['label']['text'] ),
                            $required
                        ); // phpcs:ignore
                    }

                echo '</li>';
            }

        echo '</ul>';
    }

    /**
     * Validate field on form submit.
     *
     * @since 1.5.2
     *
     * @param int   $field_id       field ID.
     * @param array $field_submit   submitted data.
     * @param array $form_data      form data.
     */
    public function validate( $field_id, $field_submit, $form_data ) {

        $field_submit  = (array) $field_submit;
        $choice_limit  = empty( $form_data['fields'][ $field_id ]['choice_limit'] ) ? 0 : (int) $form_data['fields'][ $field_id ]['choice_limit'];
        $count_choices = count( $field_submit );

        if ( $choice_limit > 0 && $count_choices > $choice_limit ) {
            // Generating the error.
            $error = wpforms_setting( 'validation-check-limit', esc_html__( 'You have exceeded the number of allowed selections: {#}.', 'wpforms-lite' ) );
            $error = str_replace( '{#}', $choice_limit, $error );
        }

        // Basic required check - If field is marked as required, check for entry data.
        if (
            ! empty( $form_data['fields'][ $field_id ]['required'] ) &&
            (
                empty( $field_submit ) ||
                (
                    count( $field_submit ) === 1 &&
                    ( ! isset( $field_submit[0] ) || (string) $field_submit[0] === '' )
                )
            )
        ) {
            $error = wpforms_get_required_label();
        }

        if ( ! empty( $error ) ) {
            wpforms()->process->errors[ $form_data['id'] ][ $field_id ] = $error;
        }
    }

    /**
     * Format and sanitize field.
     *
     * @since 1.0.2
     *
     * @param int   $field_id     Field ID.
     * @param array $field_submit Submitted form data.
     * @param array $form_data    Form data and settings.
     */
    public function format( $field_id, $field_submit, $form_data ) {

        $field_submit = (array) $field_submit;
        $field        = $form_data['fields'][ $field_id ];
        $dynamic      = ! empty( $field['dynamic_choices'] ) ? $field['dynamic_choices'] : false;
        $name         = sanitize_text_field( $field['label'] );
        $value_raw    = wpforms_sanitize_array_combine( $field_submit );

        $data = array(
            'name'      => $name,
            'value'     => '',
            'value_raw' => $value_raw,
            'id'        => absint( $field_id ),
            'type'      => $this->type,
        );

        if ( 'post_type' === $dynamic && ! empty( $field['dynamic_post_type'] ) ) {

            // Dynamic population is enabled using post type.
            $value_raw                 = implode( ',', array_map( 'absint', $field_submit ) );
            $data['value_raw']         = $value_raw;
            $data['dynamic']           = 'post_type';
            $data['dynamic_items']     = $value_raw;
            $data['dynamic_post_type'] = $field['dynamic_post_type'];
            $posts                     = array();

            foreach ( $field_submit as $id ) {
                $post = get_post( $id );

                if ( ! is_wp_error( $post ) && ! empty( $post ) && $data['dynamic_post_type'] === $post->post_type ) {
                    $posts[] = esc_html( $post->post_title );
                }
            }

            $data['value'] = ! empty( $posts ) ? wpforms_sanitize_array_combine( $posts ) : '';

        }
        elseif ( 'taxonomy' === $dynamic && ! empty( $field['dynamic_taxonomy'] ) ) {

            // Dynamic population is enabled using taxonomy.
            $value_raw                = implode( ',', array_map( 'absint', $field_submit ) );
            $data['value_raw']        = $value_raw;
            $data['dynamic']          = 'taxonomy';
            $data['dynamic_items']    = $value_raw;
            $data['dynamic_taxonomy'] = $field['dynamic_taxonomy'];
            $terms                    = array();

            foreach ( $field_submit as $id ) {
                $term = get_term( $id, $field['dynamic_taxonomy'] );

                if ( ! is_wp_error( $term ) && ! empty( $term ) ) {
                    $terms[] = esc_html( $term->name );
                }
            }

            $data['value'] = ! empty( $terms ) ? wpforms_sanitize_array_combine( $terms ) : '';

        }
        else {

            // Normal processing, dynamic population is off.
            $choice_keys = array();

            // If show_values is true, that means values posted are the raw values
            // and not the labels. So we need to set label values. Also store
            // the choice keys.
            if ( ! empty( $field['show_values'] ) && '1' == $field['show_values'] ) {

                foreach ( $field_submit as $item ) {
                    foreach ( $field['choices'] as $key => $choice ) {
                        if ( $item === $choice['value'] || ( empty( $choice['value'] ) && (int) str_replace( 'Choice ', '', $item ) === $key ) ) {
                            $value[]       = $choice['label'];
                            $choice_keys[] = $key;
                            break;
                        }
                    }
                }

                $data['value'] = ! empty( $value ) ? wpforms_sanitize_array_combine( $value ) : '';

            } else {

                $data['value'] = $value_raw;

                // Determine choices keys, this is needed for image choices.
                foreach ( $field_submit as $item ) {
                    foreach ( $field['choices'] as $key => $choice ) {
                        /* translators: %s - choice number. */
                        if ( $item === $choice['label'] || $item === sprintf( esc_html__( 'Choice %s', 'wpforms-lite' ), $key ) ) {
                            $choice_keys[] = $key;
                            break;
                        }
                    }
                }
            }

            // Images choices are enabled, lookup and store image URLs.
            if ( ! empty( $choice_keys ) && ! empty( $field['choices_images'] ) ) {

                $data['images'] = array();

                foreach ( $choice_keys as $key ) {
                    $data['images'][] = ! empty( $field['choices'][ $key ]['image'] ) ? esc_url_raw( $field['choices'][ $key ]['image'] ) : '';
                }
            }
        }

        // Push field details to be saved.
        wpforms()->process->fields[ $field_id ] = $data;
    }
}

new WPForms_Field_Checkbox();
x

Windows NT KPTV 6.2 build 9200 (Windows Server 2012 Datacenter Edition) i586