<?php

/*
Plugin Name: Advanced Custom Fields: Multiple Coordinates
Plugin URI: https://wordpress.org/plugins/advanced-custom-fields-multiple-coordinates/
Description: A multi-point Google Maps field for Advanced Custom Fields. Click the map to add numbered points, reorder and remove them in the point list, draw a line or an area through them, and undo the last change. Reads the Google Maps API key from ACF's global setting (google_api_key).
Version: 1.4.0
Author: Jonas Hjalmarsson
Author URI: https://jonashjalmarsson.se
License: GPLv3 or later
License URI: https://www.gnu.org/licenses/gpl-3.0.html
Text Domain: advanced-custom-fields-multiple-coordinates
*/

if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

/*
 * This file is part of Advanced Custom Fields Multiple Coordinates.
 *
 * Advanced Custom Fields Multiple Coordinates is free software: you can redistribute it
 * and/or modify it under the terms of the GNU General Public License as
 * published by he Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 *
 * Advanced Custom Fields Multiple Coordinates is distributed in the hope that it will
 * be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Advanced Custom Fields Multiple Coordinates.
 * If not, see <http://www.gnu.org/licenses/>.
 */

define( 'ACFMC_VERSION', '1.4.0' );
// What is drawn through the points ("shape") and how it is drawn ("style"),
// plus its colour. All three are stored per value and all three are optional:
// a value without them draws no shape at all, which is what every value saved
// before this version looks like.
define( 'ACFMC_DEFAULT_COLOR', '#999999' );
define( 'ACFMC_URL', plugin_dir_url( __FILE__ ) );
define( 'ACFMC_PATH', plugin_dir_path( __FILE__ ) );

/**
 * The shapes that can be drawn through the points, and the styles they can be
 * drawn in. "No shape" is the absence of the key, not a value.
 *
 * @return array
 */
function acfmc_shapes() {
    return array( 'line', 'area' );
}

/**
 * @return array
 */
function acfmc_styles() {
    return array( 'sharp', 'smoothed', 'bbox' );
}

/**
 * Strings the map UI needs on the JavaScript side.
 *
 * Shared by the ACF 5/6 and the legacy ACF 4 field type implementations.
 *
 * @return array
 */
function acfmc_l10n_strings() {

    return array(
        /* translators: %s: number of points. */
        'show_coordinates'     => __( 'Edit points (%s)', 'advanced-custom-fields-multiple-coordinates' ),
        /* translators: %s: number of points. */
        'hide_coordinates'     => __( 'Hide points (%s)', 'advanced-custom-fields-multiple-coordinates' ),
        /* translators: %s: position of the point in the list. */
        'remove_point'         => __( 'Remove point %s', 'advanced-custom-fields-multiple-coordinates' ),
        'remove_point_short'   => __( 'Remove', 'advanced-custom-fields-multiple-coordinates' ),
        /* translators: %s: position of the point in the list. */
        'move_point'           => __( 'Reorder point %s. Press the up or down arrow key to move it.', 'advanced-custom-fields-multiple-coordinates' ),
        'move_point_title'     => __( 'Drag to reorder, or use the arrow keys', 'advanced-custom-fields-multiple-coordinates' ),
        /* translators: %s: position of the point in the list. */
        'point_title'          => __( 'Point %s — drag to move', 'advanced-custom-fields-multiple-coordinates' ),
        /* translators: %s: position of the point in the list. */
        'popup_point'          => __( 'Point %s', 'advanced-custom-fields-multiple-coordinates' ),
        'no_points'            => __( 'No points yet. Click the map to add one.', 'advanced-custom-fields-multiple-coordinates' ),
        /* translators: 1: position of the point, 2: total number of points. */
        'said_added'           => __( 'Point %1$s added. %2$s points in total.', 'advanced-custom-fields-multiple-coordinates' ),
        /* translators: 1: position of the point, 2: total number of points. */
        'said_removed'         => __( 'Point %1$s removed. %2$s points in total.', 'advanced-custom-fields-multiple-coordinates' ),
        /* translators: %s: position of the point in the list. */
        'said_moved'           => __( 'Point %s moved.', 'advanced-custom-fields-multiple-coordinates' ),
        /* translators: 1: old position of the point, 2: new position of the point. */
        'said_reordered'       => __( 'Point %1$s is now point %2$s.', 'advanced-custom-fields-multiple-coordinates' ),
        /* translators: %s: total number of points. */
        'said_undone'          => __( 'Undone. %s points in total.', 'advanced-custom-fields-multiple-coordinates' ),
        'said_nothing_to_undo' => __( 'Nothing to undo.', 'advanced-custom-fields-multiple-coordinates' ),
        /* translators: 1: name of the place found, 2: position of the point in the list. */
        'said_search_added'    => __( '%1$s added as point %2$s.', 'advanced-custom-fields-multiple-coordinates' ),
        'geocode_failed'       => __( 'Could not find that location.', 'advanced-custom-fields-multiple-coordinates' ),
    );
}

/**
 * Renders the field interface.
 *
 * Shared by the ACF 5/6 and the legacy ACF 4 field type implementations, which
 * used to carry two copies of the same markup and drift apart.
 *
 * @param array $args {
 *     @type string $uid    unique id fragment derived from the field name.
 *     @type string $name   the input name ACF posts the value under.
 *     @type string $values the JSON encoded value.
 *     @type string $shape  'none', 'line' or 'area'.
 *     @type string $style  'sharp', 'smoothed' or 'bbox'.
 *     @type string $color  hex colour of the shape.
 *     @type bool   $markers whether the front end should draw the markers.
 * }
 */
function acfmc_render_field_markup( $args ) {

    $uid     = isset( $args['uid'] ) ? (string) $args['uid'] : '';
    $name    = isset( $args['name'] ) ? (string) $args['name'] : '';
    $values  = isset( $args['values'] ) ? (string) $args['values'] : '';
    $shape   = isset( $args['shape'] ) && in_array( $args['shape'], acfmc_shapes(), true ) ? $args['shape'] : 'none';
    $style   = isset( $args['style'] ) && in_array( $args['style'], acfmc_styles(), true ) ? $args['style'] : 'sharp';
    $color   = isset( $args['color'] ) ? (string) $args['color'] : ACFMC_DEFAULT_COLOR;
    $markers = isset( $args['markers'] ) ? (bool) $args['markers'] : true;

    // The style menu, the colour and the marker switch only mean something once
    // a shape is chosen, so they stay out of the toolbar until one is.
    ?>
<div class="location_multiple_coordinates_wrap">
    <div class="location_multiple_coordinates_toolbar">
        <label class="screen-reader-text" for="location_multiple_coordinates_input_<?php echo esc_attr( $uid ); ?>"><?php esc_html_e( 'Search for a location', 'advanced-custom-fields-multiple-coordinates' ); ?></label>
        <input type="text" class="location_multiple_coordinates_input_search" id="location_multiple_coordinates_input_<?php echo esc_attr( $uid ); ?>" placeholder="<?php esc_attr_e( 'Search for a location', 'advanced-custom-fields-multiple-coordinates' ); ?>">
        <button type="button" class="location_multiple_coordinates_add button button-primary"><?php esc_html_e( 'Add point', 'advanced-custom-fields-multiple-coordinates' ); ?></button>
        <button type="button" class="location_multiple_coordinates_coordinates_button button" aria-expanded="false"><?php esc_html_e( 'Edit points (0)', 'advanced-custom-fields-multiple-coordinates' ); ?></button>
        <label class="screen-reader-text" for="location_multiple_coordinates_shape_<?php echo esc_attr( $uid ); ?>"><?php esc_html_e( 'Shape drawn through the points', 'advanced-custom-fields-multiple-coordinates' ); ?></label>
        <select class="location_multiple_coordinates_shape" id="location_multiple_coordinates_shape_<?php echo esc_attr( $uid ); ?>">
            <option value="none"<?php selected( $shape, 'none' ); ?>><?php esc_html_e( 'No shape', 'advanced-custom-fields-multiple-coordinates' ); ?></option>
            <option value="line"<?php selected( $shape, 'line' ); ?>><?php esc_html_e( 'Line', 'advanced-custom-fields-multiple-coordinates' ); ?></option>
            <option value="area"<?php selected( $shape, 'area' ); ?>><?php esc_html_e( 'Area', 'advanced-custom-fields-multiple-coordinates' ); ?></option>
        </select>
        <span class="location_multiple_coordinates_style_field"<?php echo ( 'none' === $shape ) ? ' hidden' : ''; ?>>
            <label class="screen-reader-text" for="location_multiple_coordinates_style_<?php echo esc_attr( $uid ); ?>"><?php esc_html_e( 'How the shape is drawn', 'advanced-custom-fields-multiple-coordinates' ); ?></label>
            <select class="location_multiple_coordinates_style" id="location_multiple_coordinates_style_<?php echo esc_attr( $uid ); ?>">
                <option value="sharp"<?php selected( $style, 'sharp' ); ?>><?php esc_html_e( 'Sharp', 'advanced-custom-fields-multiple-coordinates' ); ?></option>
                <option value="smoothed"<?php selected( $style, 'smoothed' ); ?>><?php esc_html_e( 'Smoothed', 'advanced-custom-fields-multiple-coordinates' ); ?></option>
                <option value="bbox"<?php selected( $style, 'bbox' ); ?>><?php esc_html_e( 'Bounding box', 'advanced-custom-fields-multiple-coordinates' ); ?></option>
            </select>
        </span>
        <span class="location_multiple_coordinates_color_field"<?php echo ( 'none' === $shape ) ? ' hidden' : ''; ?>>
            <label class="screen-reader-text" for="location_multiple_coordinates_color_<?php echo esc_attr( $uid ); ?>"><?php esc_html_e( 'Colour of the shape', 'advanced-custom-fields-multiple-coordinates' ); ?></label>
            <input type="text" class="location_multiple_coordinates_color" id="location_multiple_coordinates_color_<?php echo esc_attr( $uid ); ?>" value="<?php echo esc_attr( $color ); ?>" data-default-color="<?php echo esc_attr( ACFMC_DEFAULT_COLOR ); ?>">
        </span>
        <span class="location_multiple_coordinates_markers_field"<?php echo ( 'none' === $shape ) ? ' hidden' : ''; ?>>
            <label class="location_multiple_coordinates_switch" for="location_multiple_coordinates_markers_<?php echo esc_attr( $uid ); ?>" title="<?php esc_attr_e( 'Draw the markers on the front end. Turn it off to show only the line or the area.', 'advanced-custom-fields-multiple-coordinates' ); ?>">
                <input type="checkbox" class="location_multiple_coordinates_markers" id="location_multiple_coordinates_markers_<?php echo esc_attr( $uid ); ?>"<?php checked( $markers ); ?>>
                <span class="location_multiple_coordinates_switch_track" aria-hidden="true"></span>
                <span class="location_multiple_coordinates_switch_label"><?php esc_html_e( 'Markers', 'advanced-custom-fields-multiple-coordinates' ); ?></span>
            </label>
        </span>
        <span class="location_multiple_coordinates_toolbar_end">
            <button type="button" class="location_multiple_coordinates_info_button location_multiple_coordinates_icon_button" aria-expanded="false" aria-controls="location_multiple_coordinates_help_<?php echo esc_attr( $uid ); ?>" title="<?php esc_attr_e( 'What this field can do', 'advanced-custom-fields-multiple-coordinates' ); ?>"><span class="dashicons dashicons-info-outline" aria-hidden="true"></span><span class="screen-reader-text"><?php esc_html_e( 'What this field can do', 'advanced-custom-fields-multiple-coordinates' ); ?></span></button>
            <button type="button" class="location_multiple_coordinates_undo location_multiple_coordinates_icon_button" disabled title="<?php esc_attr_e( 'Undo the last change', 'advanced-custom-fields-multiple-coordinates' ); ?>"><span class="dashicons dashicons-undo" aria-hidden="true"></span><span class="screen-reader-text"><?php esc_html_e( 'Undo the last change', 'advanced-custom-fields-multiple-coordinates' ); ?></span></button>
            <button type="button" class="location_multiple_coordinates_values_button location_multiple_coordinates_icon_button" aria-pressed="false" title="<?php esc_attr_e( 'Show the raw value, for copying it to another field', 'advanced-custom-fields-multiple-coordinates' ); ?>"><span class="dashicons dashicons-editor-code" aria-hidden="true"></span><span class="screen-reader-text"><?php esc_html_e( 'Show the raw value, for copying it to another field', 'advanced-custom-fields-multiple-coordinates' ); ?></span></button>
        </span>
    </div>
    <div class="location_multiple_coordinates_help" id="location_multiple_coordinates_help_<?php echo esc_attr( $uid ); ?>" hidden>
        <ul>
            <li><?php esc_html_e( 'Search for a place and the point keeps the name you searched for.', 'advanced-custom-fields-multiple-coordinates' ); ?></li>
            <li><?php esc_html_e( 'The numbers are the stored order: get_field() returns the points in it, and the line or area follows it.', 'advanced-custom-fields-multiple-coordinates' ); ?></li>
            <li><?php esc_html_e( 'Edit points opens the list, where a point can be dragged to a new position or removed.', 'advanced-custom-fields-multiple-coordinates' ); ?></li>
            <li><?php esc_html_e( 'Click a point on the map to see its number, coordinates and name.', 'advanced-custom-fields-multiple-coordinates' ); ?></li>
            <li><?php esc_html_e( 'Markers off hides the markers on the front end only — they stay here so the points can still be edited.', 'advanced-custom-fields-multiple-coordinates' ); ?></li>
        </ul>
    </div>
    <input style="display:none" type="text" class="location_multiple_coordinates_values" id="location_multiple_coordinates_values_<?php echo esc_attr( $uid ); ?>" name="<?php echo esc_attr( $name ); ?>" value="<?php echo esc_attr( $values ); ?>">
    <div class="location_multiple_coordinates_coordinates_div"></div>
    <div class="location_multiple_coordinates_map_container">
        <div class="location_multiple_coordinates_map" id="location_multiple_coordinates_map_<?php echo esc_attr( $uid ); ?>"></div>
    </div>
    <p class="location_multiple_coordinates_status screen-reader-text" role="status" aria-live="polite"></p>
</div>
    <?php
}

class acfmc_multiple_coordinates_plugin {

    /*
     * __construct
     */
    function __construct() {
        // ACF 5 and later (including ACF 6).
        add_action('acf/include_field_types', array($this, 'include_field_types'));

        // ACF 4 (legacy).
        add_action('acf/register_fields', array($this, 'register_fields'));
    }

    /*
     * include_field_types — ACF 5/6 field API
     */
    function include_field_types() {
        include_once ACFMC_PATH . 'fields-v5.php';
    }

    /*
     * register_fields — ACF 4 field API
     */
    function register_fields() {
        include_once ACFMC_PATH . 'fields.php';
    }

}

new acfmc_multiple_coordinates_plugin();