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Editing: settings-like-button.php

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<?php

if ( ! class_exists( 'Facebook_Social_Plugin_Button_Settings' ) )
	require_once( dirname(__FILE__) . '/settings-social-plugin-button.php' );

/**
 * Site settings for the Facebook Like Button social plugin
 *
 * @since 1.1
 */
class Facebook_Like_Button_Settings extends Facebook_Social_Plugin_Button_Settings {

/**
	 * Setting page identifier.
	 *
	 * @since 1.1
	 *
	 * @var string
	 */
	const PAGE_SLUG = 'facebook-like-button';

/**
	 * Define our option array value.
	 *
	 * @since 1.1
	 *
	 * @var string
	 */
	const OPTION_NAME = 'facebook_like_button';

/**
	 * The hook suffix assigned by add_submenu_page()
	 *
	 * @since 1.1
	 *
	 * @var string
	 */
	protected $hook_suffix = '';

/**
	 * Initialize with an options array.
	 *
	 * @since 1.1
	 *
	 * @param array $options existing options
	 */
	public function __construct( $options = array() ) {
		if ( is_array( $options ) && ! empty( $options ) )
			$this->existing_options = $options;
		else
			$this->existing_options = array();
	}

/**
	 * Evaluate the Facebook_Like_Button class file if it is not already loaded
	 *
	 * @since 1.1
	 *
	 * @return void
	 */
	public static function require_like_button_builder() {
		if ( ! class_exists( 'Facebook_Like_Button' ) )
			require_once( dirname( dirname(__FILE__) ) . '/social-plugins/class-facebook-like-button.php' );
	}

/**
	 * Reference the social plugin by name.
	 *
	 * @since 1.1
	 * @return string social plugin name
	 */
	public static function social_plugin_name() {
		return __( 'Like Button', 'facebook' );
	}

/**
	 * Navigate to the settings page through the Facebook top-level menu item.
	 *
	 * @since 1.1
	 *
	 * @uses add_submenu_page()
	 * @param string $parent_slug Facebook top-level menu item slug
	 * @return string submenu hook suffix
	 */
	public static function add_submenu_item( $parent_slug ) {
		$like_button_settings = new Facebook_Like_Button_Settings();

$hook_suffix = add_submenu_page(
			$parent_slug,
			self::social_plugin_name(),
			self::social_plugin_name(),
			'manage_options',
			self::PAGE_SLUG,
			array( &$like_button_settings, 'settings_page' )
		);

if ( $hook_suffix ) {
			$like_button_settings->hook_suffix = $hook_suffix;
			register_setting( $hook_suffix, self::OPTION_NAME, array( 'Facebook_Like_Button_Settings', 'sanitize_options' ) );
			add_action( 'load-' . $hook_suffix, array( &$like_button_settings, 'onload' ) );
		}

return $hook_suffix;
	}

/**
	 * Load stored options and scripts on settings page view.
	 *
	 * @since 1.1
	 *
	 * @return void
	 */
	public function onload() {
		$options = get_option( self::OPTION_NAME );
		if ( ! is_array( $options ) )
			$options = array();
		$this->existing_options = $options;

$this->settings_api_init();
	}

/**
	 * Load the page.
	 *
	 * @since 1.1
	 *
	 * @return void
	 */
	public function settings_page() {
		if ( ! isset( $this->hook_suffix ) )
			return;

Facebook_Settings::settings_page_template( $this->hook_suffix, sprintf( __( '%s Settings', 'facebook' ), self::social_plugin_name() ) );
	}

/**
	 * Hook into the settings API.
	 *
	 * @since 1.1
	 *
	 * @uses add_settings_section()
	 * @uses add_settings_field()
	 * @return void
	 */
	private function settings_api_init() {
		if ( ! isset( $this->hook_suffix ) )
			return;

$section = 'facebook-like-button';
		add_settings_section(
			$section,
			'', // no title for main section
			array( &$this, 'section_header' ),
			$this->hook_suffix
		);

/* when, where */
		add_settings_field(
			'facebook-like-show-on',
			_x( 'Show on', 'Display the social plugin in specific areas of a website', 'facebook' ),
			array( &$this, 'display_show_on' ),
			$this->hook_suffix,
			$section
		);
		add_settings_field(
			'facebook-like-position',
			_x( 'Position', 'Desired position of a Facebook social plugin relative to main post content.', 'facebook' ),
			array( &$this, 'display_position' ),
			$this->hook_suffix,
			$section,
			array( 'label_for' => 'facebook-like-position' )
		);

/* like button options */
		add_settings_field(
			'facebook-like-share',
			__( 'Share Button', 'facebook' ),
			array( &$this, 'display_share' ),
			$this->hook_suffix,
			$section,
			array( 'label_for' => 'facebook-like-share' )
		);
		add_settings_field(
			'facebook-like-layout',
			_x( 'Layout', 'Positioning of components of a Facebook social plugin relative to each other. Example layouts include button before interaction count or interaction count above button.', 'facebook' ),
			array( &$this, 'display_layout' ),
			$this->hook_suffix,
			$section
		);
		add_settings_field(
			'facebook-like-show-faces',
			_x( 'Show faces', 'Show the faces of Facebook friends who have interacted with this object.', 'facebook' ),
			array( &$this, 'display_show_faces' ),
			$this->hook_suffix,
			$section,
			array( 'label_for' => 'facebook-like-show-faces' )
		);
		add_settings_field(
			'facebook-like-width',
			__( 'Width', 'facebook' ),
			array( &$this, 'display_width' ),
			$this->hook_suffix,
			$section,
			array( 'label_for' => 'facebook-like-width' )
		);
		add_settings_field(
			'facebook-like-action',
			__( 'Action', 'facebook' ),
			array( &$this, 'display_action' ),
			$this->hook_suffix,
			$section
		);
		add_settings_field(
			'facebook-like-font',
			__( 'Font', 'facebook' ),
			array( &$this, 'display_font' ),
			$this->hook_suffix,
			$section,
			array( 'label_for' => 'facebook-like-font' )
		);
		add_settings_field(
			'facebook-like-colorscheme',
			__( 'Color scheme', 'facebook' ),
			array( &$this, 'display_colorscheme' ),
			$this->hook_suffix,
			$section
		);
	}

/**
	 * Introduce publishers to the Like Button social plugin
	 *
	 * @since 1.1
	 *
	 * @return void
	 */
	public function section_header() {
		echo '<p>' . esc_html( __( 'Help your visitors share your pages on their Facebook profile with one click.', 'facebook' ) ) . ' <a href="https://developers.facebook.com/docs/plugins/like-button/" title="' . esc_attr( sprintf( __( '%s social plugin documentation', 'facebook' ), 'Facebook ' . self::social_plugin_name() ) ) . '">' . esc_html( __( 'Read more...', 'facebook' ) ) . '</a></p>';
	}

/**
	 * Where should the button appear?
	 *
	 * @since 1.1
	 *
	 * @param array $extra_attributes custom form attributes
	 * @return void
	 */
	public function display_show_on( $extra_attributes = array() ) {
		$key = 'show_on';

extract( self::parse_form_field_attributes(
			$extra_attributes,
			array(
				'id' => 'facebook-like-show-on',
				'class' => '',
				'name' => self::OPTION_NAME . '[' . $key . ']'
			)
		) );

echo '<fieldset id="' . $id . '"';
		if ( isset( $class ) && $class )
			echo ' class="' . $class . '"';
		echo '>' . self::show_on_choices( $name, self::get_display_conditionals_by_feature( 'like', 'all' ), 'all' ) . '</fieldset>';

echo '<p class="description">' . esc_html( self::show_on_description( self::social_plugin_name() ) ) . '</p>';
	}

/**
	 * Where would you like it?
	 *
	 * @since 1.1
	 *
	 * @param array $extra_attributes custom form attributes
	 * @return void
	 */
	public function display_position( $extra_attributes = array() ) {
		$key = 'position';

extract( self::parse_form_field_attributes(
			$extra_attributes,
			array(
				'id' => 'facebook-like-' . $key,
				'class' => '',
				'name' => self::OPTION_NAME . '[' . $key . ']'
			)
		) );

echo '<select name="' . esc_attr( $name ) . '" id="' . $id . '"';
		if ( isset( $class ) && $class )
			echo ' class="' . $class . '"';
		echo '>' . self::position_choices( isset( $this->existing_options[$key] ) ? $this->existing_options[$key] : '' ) . '</select>';
	}

/**
	 * Display the share button option checkbox.
	 *
	 * @since 1.5.4
	 *
	 * @param array $extra_attributes custom form attributes
	 * @return void
	 */
	public function display_share( $extra_attributes = array() ) {
		$key = 'share';

extract( self::parse_form_field_attributes(
			$extra_attributes,
			array(
				'id' => 'facebook-like-' . $key,
				'class' => '',
				'name' => self::OPTION_NAME . '[' . $key . ']'
			)
		) );

echo esc_html( sprintf( _x( 'Include a %1$s alongside the %2$s.', 'Include another social plugin alongside the current social plugin. Example: Share alongside Like', 'facebook' ), __( 'Share Button', 'facebook' ), self::social_plugin_name() ) ) . '</label>';

echo '<p class="description">' . esc_html( __( 'Allows a Facebook user to easily share your URL on a Facebook Timeline, Page, group, or in a Facebook Message.', 'facebook' ) ) . '</p>';
	}

/**
	 * Describe layout choices.
	 *
	 * @since 1.1
	 *
	 * @return array layout descriptions keyed by layout choice
	 */
	public static function layout_descriptions() {
		$like_plural = _x( 'likes', 'plural of the noun: Facebook Likes', 'facebook' );
		return array(
			'standard' => __( 'Display social text next to the button.', 'facebook' ),
			'button_count' => sprintf( __( 'Display total number of %s next to the button.', 'facebook' ), $like_plural ),
			'box_count' => sprintf( __( 'Display total number of %s above the button.', 'facebook' ), $like_plural )
		);
	}

/**
	 * Choose a Like Button layout option.
	 *
	 * @since 1.1
	 *
	 * @param array $extra_attributes custom form attributes
	 * @return void
	 */
	public function display_layout( $extra_attributes = array() ) {
		$key = 'layout';

self::require_like_button_builder();

if ( isset( $this->existing_options[$key] ) && isset( Facebook_Like_Button::$layout_choices[ $this->existing_options[$key] ] ) )
			$existing_value = $this->existing_options[$key];
		else
			$existing_value = 'standard';

extract( self::parse_form_field_attributes(
			$extra_attributes,
			array(
				'id' => 'facebook-like-' . $key,
				'class' => '',
				'name' => self::OPTION_NAME . '[' . $key . ']'
			)
		) );
		$name = esc_attr( $name );

$descriptions = self::layout_descriptions();

$layout_choices = array_keys( Facebook_Like_Button::$layout_choices );
		$choices = array();
		foreach( $layout_choices as $layout ) {
			$choice = '<label><input type="radio" name="' . $name . '" value="' . $layout . '"';
			$choice .= checked( $layout, $existing_value, false );
			$choice .= ' /> ';

$choice .= $layout;
			if ( isset( $descriptions[$layout] ) )
				$choice .= esc_html( ' — ' . $descriptions[$layout] );
			$choice .= '</label>';

$choices[] = $choice;
			unset( $choice );
		}

if ( ! empty( $choices ) ) {
			echo '<fieldset id="' . $id . '"';
			if ( isset( $class ) && $class )
				echo ' class="' . $class . '"';
			echo '><div>';
			echo implode( '</div><div>', $choices );
			echo '</div></fieldset>';
		}
	}

/**
	 * Option to display faces of friends below the Like Button
	 *
	 * @since 1.1
	 *
	 * @param array $extra_attributes custom form attributes
	 * @return void
	 */
	public function display_show_faces( $extra_attributes = array() ) {
		$key = 'show_faces';

extract( self::parse_form_field_attributes(
			$extra_attributes,
			array(
				'id' => 'facebook-like-show-faces',
				'class' => '',
				'name' => self::OPTION_NAME . '[' . $key . ']'
			)
		) );

echo '<label><input type="checkbox" name="' . esc_attr( $name ) . '" id="' . $id . '" value="1"';
		if ( isset( $class ) && $class )
			echo ' class="' . $class . '"';
		checked( isset( $this->existing_options[$key] ) );
		echo ' /> ' . esc_html( __( "Show profile photos of the viewer's friends who have already liked the URL.", 'facebook' ) ) . '</label>';
	}

/**
	 * Allow the publisher to customize the width of the Like Button
	 *
	 * @since 1.1
	 *
	 * @param array $extra_attributes custom form attributes
	 * @return void
	 */
	public function display_width( $extra_attributes = array() ) {
		global $content_width;

$key = 'width';

if ( isset( $this->existing_options[$key] ) )
			$existing_value = absint( $this->existing_options[$key] );
		else if ( isset( $content_width ) )
			$existing_value = absint( $content_width );

if ( ! isset( $existing_value ) || $existing_value < 55 )
			$existing_value = 450; // match social plugin config page default

extract( self::parse_form_field_attributes(
			$extra_attributes,
			array(
				'id' => 'facebook-like-' . $key,
				'class' => '',
				'name' => self::OPTION_NAME . '[' . $key . ']'
			)
		) );

echo '<input type="number" name="' . esc_attr( $name ) . '" id="' . $id . '" size="5" min="55" step="1" value="' . $existing_value . '"';
		if ( isset( $class ) && $class )
			echo ' class="' . $class . '"';
		echo ' />';
		if ( isset( $content_width ) && $name === self::OPTION_NAME . '[' . $key . ']' )
			echo ' ' . esc_html( sprintf( __( 'Content width: %u', 'facebook' ), absint( $content_width ) ) );

echo '<p class="description">' . esc_html( sprintf( __( 'The width of the %s display area in whole pixels.', 'facebook' ), self::social_plugin_name() ) ) . '</p>';
	}

/**
	 * Choose action text.
	 *
	 * @since 1.1
	 *
	 * @param array $extra_attributes custom form attributes
	 * @return void
	 */
	public function display_action( $extra_attributes = array() ) {
		$key = 'action';

self::require_like_button_builder();

if ( isset( $this->existing_options[$key] ) && isset( Facebook_Like_Button::$action_choices[ $this->existing_options[$key] ] ) )
			$existing_value = $this->existing_options[$key];
		else
			$existing_value = 'like';

$action_choices = array_keys( Facebook_Like_Button::$action_choices );
		$fields = array();
		foreach( $action_choices as $action ) {
			$fields[] = '<label><input type="radio" name="' . $name . '" value="' . $action . '"' . checked( $action, $existing_value, false ) . ' /> ' . esc_html( __( $action, 'facebook' ) ) . '</label>';
		}

echo '<fieldset id="' . $id . '"';
		if ( isset( $class ) && $class )
			echo ' class="' . $class . '"';
		echo '>' . implode( ' ', $fields ) . '</fieldset>';

echo '<p class="description">' . esc_html( __( 'Action verb displayed in button.', 'facebook' ) ) . '</p>';
	}

/**
	 * Choose a custom font.
	 *
	 * @since 1.1
	 *
	 * @param array $extra_attributes custom form attributes
	 * @return void
	 */
	public function display_font( $extra_attributes = array() ) {
		$key = 'font';

extract( self::parse_form_field_attributes(
			$extra_attributes,
			array(
				'id' => 'facebook-like-' . $key,
				'class' => '',
				'name' => self::OPTION_NAME . '[' . $key . ']'
			)
		) );

echo '<select name="' . esc_attr( $name ) . '" id="' . $id . '"';
		if ( isset( $class ) && $class )
			echo ' class="' . $class . '"';
		echo '>' . self::font_choices( isset( $this->existing_options[$key] ) ? $this->existing_options[$key] : '' ) . '</select>';
	}

/**
	 * Customize the color scheme.
	 *
	 * @since 1.1
	 *
	 * @param array $extra_attributes custom form attributes
	 * @return void
	 */
	public function display_colorscheme( $extra_attributes = array() ) {
		$key = 'colorscheme';

extract( self::parse_form_field_attributes(
			$extra_attributes,
			array(
				'id' => 'facebook-like-' . $key,
				'class' => '',
				'name' => self::OPTION_NAME . '[' . $key . ']'
			)
		) );

echo '<fieldset id="' . $id . '"';
		if ( isset( $class ) && $class )
			echo ' class="' . $class . '"';
		echo '>' . self::color_scheme_choices( $name, isset( $this->existing_options[$key] ) ? $this->existing_options[$key] : '' ) . '</fieldset>';
	}

/**
	 * Translate HTML data response returned from Facebook social plugin builder into underscored keys and PHP values before saving.
	 *
	 * @since 1.1
	 *
	 * @param array $options data-* options returned from Facebook social plugin builder
	 * @return array $options options to store in WordPress
	 */
	public static function html_data_to_options( $options ) {
		if ( ! is_array( $options ) )
			return array();

if ( isset( $options['share'] ) ) {
			if ( $options['share'] === 'true' )
				$options['share'] = true;
			else if ( $options['share'] === 'false' )
				$options['share'] = false;
		}

if ( isset( $options['show-faces'] ) ) {
			if ( $options['show-faces'] === 'true' )
				$options['show_faces'] = true;
			else if ( $options['show-faces'] === 'false' )
				$options['show_faces'] = false;
			unset( $options['show-faces'] );
		}

if ( isset( $options['width'] ) )
			$options['width'] = absint( $options['width'] );

return $options;
	}

/**
	 * Sanitize Like Button settings before they are saved to the database.
	 *
	 * @since 1.1
	 *
	 * @param array $options Like Button options
	 * @return array clean option sets. note: we remove Like Button social plugin default options, storing only custom settings (e.g. dark color scheme stored, light is default and therefore not stored)
	 */
	public static function sanitize_options( $options ) {
		if ( ! is_array( $options ) || empty( $options ) )
			return array();

self::require_like_button_builder();

// Handle like button display preferences first
		$clean_options = parent::sanitize_options( $options );
		if ( isset( $clean_options['show_on'] ) ) {
			self::update_display_conditionals( 'like', $clean_options['show_on'], self::get_show_on_choices( 'all' ) );
			unset( $clean_options['show_on'] );
		}
		unset( $options['show_on'] );

foreach( array( 'share', 'show_faces' ) as $bool_option ) {
			if ( isset( $options[ $bool_option ] ) )
				$options[ $bool_option ] = true;
			else
				$options[ $bool_option ] = false;
		}

if ( isset( $options['width'] ) )
			$options['width'] = absint( $options['width'] );

$like_button = Facebook_Like_Button::fromArray( $options );
		if ( $like_button ) {
			$like_button->validate();
			return array_merge( $clean_options, self::html_data_to_options( $like_button->toHTMLDataArray() ) );
		}

return $clean_options;
	}
}

Editing: settings-like-button.php

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