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<?php
namespace WPForms\Forms;
use WPForms\Helpers\PluginSilentUpgrader;
use WPForms_Builder;
use WPForms_Install_Skin;
/**
* Icon Choices functionality.
*
* @since 1.7.9
*/
class IconChoices {
/**
* Remote URL to download the icon library from.
*
* @since 1.7.9
*
* @var string
*/
const FONT_AWESOME_URL = 'https://wpforms.com/wp-content/icon-choices.zip';
/**
* Font Awesome version.
*
* @since 1.7.9
*
* @var string
*/
const FONT_AWESOME_VERSION = '6.2.1';
/**
* Default icon.
*
* @since 1.7.9
*
* @var string
*/
const DEFAULT_ICON = 'face-smile';
/**
* Default icon style.
*
* @since 1.7.9
*
* @var string
*/
const DEFAULT_ICON_STYLE = 'regular';
/**
* Default accent color.
*
* @since 1.7.9
*
* @var string
*/
const DEFAULT_COLOR = '#0399ed';
/**
* How many icons to display initially and paginate in the Icon Picker.
*
* @since 1.7.9
*
* @var int
*/
const DEFAULT_ICONS_PER_PAGE = 50;
/**
* Absolute path to the cache directory.
*
* @since 1.7.9
*
* @var string
*/
private $cache_base_path;
/**
* Cache directory URL.
*
* @since 1.7.9
*
* @var string
*/
private $cache_base_url;
/**
* Absolute path to the icons data file.
*
* @since 1.7.9
*
* @var string
*/
private $icons_data_file;
/**
* Whether icon library is already installed.
*
* @since 1.7.9
*
* @var bool
*/
private $is_installed;
/**
* Default list of icon sizes.
*
* @since 1.7.9
*
* @var array
*/
private $default_icon_sizes;
/**
* Initialize class.
*
* @since 1.7.9
*/
public function init() {
$upload_dir = wpforms_upload_dir();
$this->cache_base_url = $upload_dir['url'] . '/icon-choices';
$this->cache_base_path = $upload_dir['path'] . '/icon-choices';
$this->icons_data_file = $this->cache_base_path . '/icons.json';
$this->default_icon_sizes = [
'large' => [
'label' => __( 'Large', 'wpforms-lite' ),
'size' => 64,
],
'medium' => [
'label' => __( 'Medium', 'wpforms-lite' ),
'size' => 48,
],
'small' => [
'label' => __( 'Small', 'wpforms-lite' ),
'size' => 32,
],
];
$this->hooks();
}
/**
* Hook into WordPress lifecycle.
*
* @since 1.7.9
*/
private function hooks() {
// Add inline CSS with custom properties on the frontend.
add_action( 'wpforms_frontend_css', [ $this, 'css_custom_properties' ] );
// Add inline CSS with custom properties in the form builder.
if ( wpforms_is_admin_page( 'builder' ) ) {
add_action( 'admin_head', [ $this, 'css_custom_properties' ] );
}
// Load Font Awesome assets.
add_action( 'wpforms_builder_enqueues', [ $this, 'enqueues' ] );
// Send data to the frontend.
add_filter( 'wpforms_builder_strings', [ $this, 'get_strings' ], 10, 2 );
// Download and extract Font Awesome package.
add_action( 'wp_ajax_wpforms_icon_choices_install', [ $this, 'install' ] );
}
/**
* Whether Font Awesome library is already installed or not.
*
* @since 1.7.9
*
* @return bool
*/
private function is_installed() {
if ( $this->is_installed !== null ) {
return $this->is_installed;
}
$this->is_installed = file_exists( $this->icons_data_file );
return $this->is_installed;
}
/**
* Whether Icon Choices mode is active on any of the fields in current form.
*
* @since 1.7.9
*
* @return bool
*/
private function is_active() {
$form_data = WPForms_Builder::instance()->form_data;
return wpforms_has_field_setting( 'choices_icons', $form_data, false );
}
/**
* Install Font Awesome library from our server.
*
* @since 1.7.9
*/
public function install() { // phpcs:ignore WPForms.PHP.HooksMethod.InvalidPlaceForAddingHooks
check_ajax_referer( 'wpforms-builder', 'nonce' );
// WordPress assumes it's a plugin/theme and tries to get translations. We don't need that, and it breaks JS output.
remove_action( 'upgrader_process_complete', [ 'Language_Pack_Upgrader', 'async_upgrade' ], 20 );
require_once WPFORMS_PLUGIN_DIR . 'includes/admin/class-install-skin.php';
// Create the Upgrader with our custom skin that reports errors as WP JSON.
$installer = new PluginSilentUpgrader( new WPForms_Install_Skin() );
// The installer skin reports any errors via wp_send_json_error() with generic error messages.
$installer->init();
$installer->run(
[
'package' => self::FONT_AWESOME_URL,
'destination' => $this->cache_base_path,
]
);
$this->is_installed = true;
wp_send_json_success();
}
/**
* Load all necessary Font Awesome assets.
*
* @since 1.7.9
*
* @param string $view Current Form Builder view (panel).
*/
public function enqueues( $view ) {
if ( ! $this->is_installed() ) {
return;
}
wp_enqueue_style(
'wpforms-icon-choices-font-awesome',
$this->cache_base_url . '/css/fontawesome.min.css',
[],
self::FONT_AWESOME_VERSION
);
wp_enqueue_style(
'wpforms-icon-choices-font-awesome-brands',
$this->cache_base_url . '/css/brands.min.css',
[],
self::FONT_AWESOME_VERSION
);
wp_enqueue_style(
'wpforms-icon-choices-font-awesome-regular',
$this->cache_base_url . '/css/regular.min.css',
[],
self::FONT_AWESOME_VERSION
);
wp_enqueue_style(
'wpforms-icon-choices-font-awesome-solid',
$this->cache_base_url . '/css/solid.min.css',
[],
self::FONT_AWESOME_VERSION
);
}
/**
* Define additional field properties specific to Icon Choices feature.
*
* @since 1.7.9
*
* @see WPForms_Field_Checkbox::field_properties()
* @see WPForms_Field_Radio::field_properties()
* @see WPForms_Field_Payment_Checkbox::field_properties()
* @see WPForms_Field_Payment_Multiple::field_properties()
*
* @param array $properties Field properties.
* @param array $field Field settings.
*
* @return array
*/
public function field_properties( $properties, $field ) {
$properties['input_container']['class'][] = 'wpforms-icon-choices';
$properties['input_container']['class'][] = sanitize_html_class( 'wpforms-icon-choices-' . $field['choices_icons_style'] );
$properties['input_container']['class'][] = sanitize_html_class( 'wpforms-icon-choices-' . $field['choices_icons_size'] );
$icon_color = isset( $field['choices_icons_color'] ) ? wpforms_sanitize_hex_color( $field['choices_icons_color'] ) : '';
$icon_color = empty( $icon_color ) ? self::DEFAULT_COLOR : $icon_color;
$properties['input_container']['attr']['style'] = "--wpforms-icon-choices-color: {$icon_color};";
foreach ( $properties['inputs'] as $key => $inputs ) {
$properties['inputs'][ $key ]['container']['class'][] = 'wpforms-icon-choices-item';
if ( in_array( $field['choices_icons_style'], [ 'default', 'modern', 'classic' ], true ) ) {
$properties['inputs'][ $key ]['class'][] = 'wpforms-screen-reader-element';
}
}
return $properties;
}
/**
* Display a single choice on the form front-end.
*
* @since 1.7.9
*
* @see WPForms_Field_Checkbox::field_display()
* @see WPForms_Field_Radio::field_display()
* @see WPForms_Field_Payment_Checkbox::field_display()
* @see WPForms_Field_Payment_Multiple::field_display()
*
* @param array $field Field settings.
* @param array $choice Single choice item settings.
* @param string $type Field input type.
* @param string|null $label Custom label, used by Payment fields.
*/
public function field_display( $field, $choice, $type, $label = null ) {
// Only Payment fields supply a custom label.
if ( ! $label ) {
$label = $choice['label']['text'];
}
printf(
'<label %1$s>
<span class="wpforms-icon-choices-icon">
%2$s
<span class="wpforms-icon-choices-icon-bg"></span>
</span>
<input type="%3$s" %4$s %5$s %6$s>
<span class="wpforms-icon-choices-label">%7$s</span>
</label>',
wpforms_html_attributes( $choice['label']['id'], $choice['label']['class'], $choice['label']['data'], $choice['label']['attr'] ),
// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
$this->get_icon( $choice['icon'], $choice['icon_style'], $field['choices_icons_size'] ),
esc_attr( $type ),
wpforms_html_attributes( $choice['id'], $choice['class'], $choice['data'], $choice['attr'] ),
esc_attr( $choice['required'] ),
checked( '1', $choice['default'], false ),
wp_kses_post( $label )
);
}
/**
* Output inline CSS custom properties (vars).
*
* @since 1.7.9
*
* @param null|array $forms Frontend forms, if available.
*
* @return void
*/
public function css_custom_properties( $forms = null ) {
$hook = current_action();
// On the frontend, we need these properties only if Icon Choices is in use.
if ( $hook === 'wpforms_frontend_css' && ! wpforms_has_field_setting( 'choices_icons', $forms, true ) ) {
return;
}
$selectors = [
'wpforms_frontend_css' => '.wpforms-container',
'admin_head' => '#wpforms-builder, .wpforms-icon-picker-container',
];
/**
* Add CSS custom properties.
*
* @since 1.7.9
*
* @param array $properties CSS custom properties using CSS syntax.
*/
$custom_properties = (array) apply_filters( 'wpforms_forms_icon_choices_css_custom_properties', [] );
$icon_sizes = $this->get_icon_sizes();
foreach ( $icon_sizes as $slug => $data ) {
$custom_properties[ "wpforms-icon-choices-size-{$slug}" ] = $data['size'] . 'px';
}
$custom_properties_css = '';
foreach ( $custom_properties as $property => $value ) {
$custom_properties_css .= "--{$property}: {$value};";
}
printf(
'<style id="wpforms-icon-choices-custom-properties">%s { %s }</style>',
esc_attr( $selectors[ $hook ] ),
esc_html( $custom_properties_css )
);
}
/**
* Get available icon sizes.
*
* @since 1.7.9
*
* @return array A list of all icon sizes.
*/
public function get_icon_sizes() {
/**
* Allow modifying the icon sizes.
*
* @since 1.7.9
*
* @param array $icon_sizes {
* Default icon sizes.
*
* @type string $key The icon slug.
* @type array $value {
* Individual icon size data.
*
* @type string $label Translatable label.
* @type int $size The size value.
* }
* }
* @param array $default_icon_sizes Default icon sizes for reference.
*/
$sizes = (array) apply_filters( 'wpforms_forms_icon_choices_get_icon_sizes', [], $this->default_icon_sizes );
return array_merge( $this->default_icon_sizes, $sizes );
}
/**
* Read icons metadata from disk.
*
* @since 1.7.9
*
* @param array $strings Strings and values sent to the frontend.
* @param array $form Current form.
*
* @return array
*/
public function get_strings( $strings, $form ) {
$strings['continue'] = esc_html__( 'Continue', 'wpforms-lite' );
$strings['done'] = esc_html__( 'Done!', 'wpforms-lite' );
$strings['uh_oh'] = esc_html__( 'Uh oh!', 'wpforms-lite' );
$strings['icon_choices'] = [
'is_installed' => false,
'is_active' => $this->is_active(),
'default_icon' => self::DEFAULT_ICON,
'default_icon_style' => self::DEFAULT_ICON_STYLE,
'default_color' => self::DEFAULT_COLOR,
'icons' => [],
'icons_per_page' => self::DEFAULT_ICONS_PER_PAGE,
'strings' => [
'install_prompt_content' => esc_html__( 'In order to use the Icon Choices feature, an icon library must be downloaded and installed. It\'s quick and easy, and you\'ll only have to do this once.', 'wpforms-lite' ),
'install_title' => esc_html__( 'Installing Icon Library', 'wpforms-lite' ),
'install_content' => esc_html__( 'This should only take a minute. Please don’t close or reload your browser window.', 'wpforms-lite' ),
'install_success_content' => esc_html__( 'The icon library has been installed successfully. We will now save your form and reload the form builder.', 'wpforms-lite' ),
'install_error_content' => wp_kses(
sprintf( /* translators: %s - WPForms Support URL. */
__( 'There was an error installing the icon library. Please try again later or <a href="%s" target="_blank" rel="noreferrer noopener">contact support</a> if the issue persists.', 'wpforms-lite' ),
esc_url(
wpforms_utm_link(
'https://wpforms.com/account/support/',
'builder-modal',
'Icon Library Install Failure'
)
)
),
[
'a' => [
'href' => true,
'target' => true,
'rel' => true,
],
]
),
'reinstall_prompt_content' => esc_html__( 'The icon library appears to be missing or damaged. It will now be reinstalled.', 'wpforms-lite' ),
'icon_picker_title' => esc_html__( 'Icon Picker', 'wpforms-lite' ),
'icon_picker_description' => esc_html__( 'Browse or search for the perfect icon.', 'wpforms-lite' ),
'icon_picker_search_placeholder' => esc_html__( 'Search 2000+ icons...', 'wpforms-lite' ),
'icon_picker_not_found' => esc_html__( 'Sorry, we didn\'t find any matching icons.', 'wpforms-lite' ),
],
];
if ( ! $this->is_installed() ) {
return $strings;
}
$strings['icon_choices']['is_installed'] = true;
$strings['icon_choices']['icons'] = $this->get_icons();
return $strings;
}
/**
* Get an SVG icon code from a file for inline output in HTML.
*
* Note: the output does not need escaping.
*
* @since 1.7.9
*
* @param string $icon Font Awesome icon name.
* @param string $style Font Awesome style (solid, brands).
* @param int $size Icon display size.
*
* @return string
*/
private function get_icon( $icon, $style, $size ) {
$icon_sizes = $this->get_icon_sizes();
$filename = realpath( "{$this->cache_base_path}/svgs/{$style}/{$icon}.svg" );
if ( ! $filename || ! is_file( $filename ) || ! is_readable( $filename ) ) {
return '';
}
$svg = file_get_contents( $filename );
if ( ! $svg ) {
return '';
}
$height = ! empty( $icon_sizes[ $size ]['size'] ) ? $icon_sizes[ $size ]['size'] : $icon_sizes['large']['size'];
$width = $height * 1.25; // Icon width is equal or 25% larger/smaller than height. We force the largest value for all icons.
return str_replace( 'viewBox=', 'width="' . $width . '" height="' . $height . 'px" viewBox=', $svg );
}
/**
* Get all available icons from the metadata file.
*
* @since 1.7.9
*
* @return array
*/
private function get_icons() {
if ( ! is_file( $this->icons_data_file ) || ! is_readable( $this->icons_data_file ) ) {
return [];
}
$icons = file_get_contents( $this->icons_data_file );
if ( ! $icons ) {
return [];
}
return (array) json_decode( $icons, false );
}
}