<?php

/**
 * Settings
 *
 * @link          https://plugins360.com
 * @since         1.0.0
 *
 * @package       AIOVG
 * @subpackage    AIOVG/admin
 */

// Exit if accessed directly
if ( ! defined( 'WPINC' ) ) {
	die;
}

/**
 * AIOVG_Admin_Settings class.
 *
 * @since    1.0.0
 */
class AIOVG_Admin_Settings {

	/**
     * Settings tabs array.
     *
	 * @since     1.0.0
	 * @access    protected
     * @var       array
     */
    protected $tabs = array();
	
	/**
     * Settings sections array.
     *
	 * @since     1.0.0
	 * @access    protected
     * @var       array
     */
    protected $sections = array();
	
	/**
     * Settings fields array
     *
	 * @since     1.0.0
	 * @access    protected
     * @var       array
     */
    protected $fields = array();
	
	/**
	 * Add a settings menu for the plugin.
	 *
	 * @since    1.0.0
	 */
	public function add_settings_menu() {
	
		add_submenu_page(
			'edit.php?post_type=aiovg_videos',
			__( 'Settings', 'all-in-one-video-gallery' ),
			__( 'Settings', 'all-in-one-video-gallery' ),
			'manage_aiovg_options',
			'aiovg_settings',
			array( $this, 'display_settings_form' )
		);
	
	}
	
	/**
	 * Display settings form.
	 *
	 * @since    1.0.0
	 */
	public function display_settings_form() {
	
		$active_tab = isset( $_GET['tab'] ) && array_key_exists( $_GET['tab'], $this->tabs ) ? sanitize_text_field( $_GET['tab'] ) : 'general';
		require_once AIOVG_PLUGIN_DIR . 'admin/templates/settings.php';
		
	}
	
	/**
	 * Initiate settings.
	 *
	 * @since    1.0.0
	 */
	public function admin_init() { 
	
		$this->tabs     = $this->get_tabs();
        $this->sections = $this->get_sections();
        $this->fields   = $this->get_fields();
		
        // Initialize settings
        $this->initialize_settings();
		
	}
	
	/**
     * Get settings tabs.
     *
	 * @since     1.0.0
     * @return    array    $tabs    Setting tabs array.
     */
    public function get_tabs() {
	
		$tabs = array(
			'general'  => __( 'General', 'all-in-one-video-gallery' ),
			'display'  => __( 'Display', 'all-in-one-video-gallery' ),
			'advanced' => __( 'Advanced', 'all-in-one-video-gallery' )
		);
		
		return apply_filters( 'aiovg_settings_tabs', $tabs );
	
	}
	
	/**
     * Get settings sections.
     *
	 * @since     1.0.0
     * @return    array    $sections    Setting sections array.
     */
    public function get_sections() {	
		
		$sections = array(
			array(
                'id'    => 'aiovg_general_settings',
                'title' => __( 'General Settings', 'all-in-one-video-gallery' ),
				'tab'   => 'general'
            ),
            array(
                'id'    => 'aiovg_player_settings',
                'title' => __( 'Player Settings', 'all-in-one-video-gallery' ),
				'tab'   => 'general'
            ),            
			array(
                'id'    => 'aiovg_image_settings',
                'title' => __( 'Image Settings', 'all-in-one-video-gallery' ),
				'tab'   => 'display'
            ),
			array(
                'id'    => 'aiovg_categories_settings',
                'title' => __( 'Categories Page', 'all-in-one-video-gallery' ),
				'tab'   => 'display'
            ),
			array(
                'id'    => 'aiovg_videos_settings',
                'title' => __( 'Video Gallery Pages', 'all-in-one-video-gallery' ),
				'tab'   => 'display'
            ),
			array(
                'id'    => 'aiovg_video_settings',
                'title' => __( 'Single Video Page', 'all-in-one-video-gallery' ),
				'tab'   => 'display'
            ),			
			array(
                'id'          => 'aiovg_permalink_settings',
                'title'       => __( 'Permalink Slugs', 'all-in-one-video-gallery' ),
				'description' => __( 'NOTE: Just make sure that, after updating the fields in this section, you flush the rewrite rules by visiting "Settings > Permalinks". Otherwise you\'ll still see the old links.', 'all-in-one-video-gallery' ),
				'tab'         => 'advanced'
            ),
			array(
                'id'          => 'aiovg_socialshare_settings',
                'title'       => __( 'Socialshare Buttons', 'all-in-one-video-gallery' ),
				'description' => __( 'Select social share buttons displayed in the single video pages.', 'all-in-one-video-gallery' ),
				'tab'         => 'advanced'
            ),
			array(
                'id'    => 'aiovg_page_settings',
                'title' => __( 'Page Settings', 'all-in-one-video-gallery' ),
				'tab'   => 'advanced'
            )
        );
		
		return apply_filters( 'aiovg_settings_sections', $sections );
		
	}
	
	/**
     * Get settings fields.
     *
	 * @since     1.0.0
     * @return    array    $fields    Setting fields array.
     */
    public function get_fields() {
	
		$fields = array(
			'aiovg_general_settings' => array(
				array(
                    'name'              => 'bootstrap',
                    'label'             => __( 'Bootstrap Options', 'all-in-one-video-gallery' ),
                    'description'       => __( 'All in One Video Gallery uses Bootstrap version 3. Disable this option if your theme already include the "Bootstrap" library files.', 'all-in-one-video-gallery' ),
                    'type'              => 'multicheck',
					'options'           => array(
						'css' => __( 'Include Bootstrap CSS', 'all-in-one-video-gallery' )
					),
					'sanitize_callback' => 'aiovg_sanitize_array'
                ),
				array(
                    'name'              => 'fontawesome',
                    'label'             => __( 'Font Awesome', 'all-in-one-video-gallery' ),
                    'description'       => __( 'Include Font Awesome. Disable this option if your theme already include the "Font Awesome" library files', 'all-in-one-video-gallery' ),
                    'type'              => 'checkbox',
					'sanitize_callback' => 'intval'
                ),
				array(
                    'name'              => 'delete_plugin_data',
                    'label'             => __( 'Remove data on uninstall?', 'all-in-one-video-gallery' ),
                    'description'       => __( 'Check this box to delete all of the plugin data( database stored content, uploaded media files, etc... ) when uninstalled', 'all-in-one-video-gallery' ),
                    'type'              => 'checkbox',
					'sanitize_callback' => 'intval'
                )
			),
			'aiovg_player_settings' => array(
				array(
                    'name'              => 'width',
                    'label'             => __( 'Width', 'all-in-one-video-gallery' ),
                    'description'       => __( 'In pixels. Maximum width of the player. Leave this field empty to scale 100% of its enclosing container/html element.', 'all-in-one-video-gallery' ),
                    'type'              => 'text',
                    'sanitize_callback' => 'aiovg_sanitize_int'
                ),
				array(
                    'name'              => 'ratio',
                    'label'             => __( 'Ratio', 'all-in-one-video-gallery' ),
                    'description'       => sprintf(
						'%s<br /><br /><strong>%s:</strong><br />"56.25" - %s<br />"62.5" - %s<br />"75" - %s<br />"67" - %s<br />"100" - %s<br />"41.7" - %s', 
						__( "In percentage. 1 to 100. Calculate player's height using the ratio value entered.", 'all-in-one-video-gallery' ),
						__( 'Examples', 'all-in-one-video-gallery' ),
						__( 'Wide Screen TV', 'all-in-one-video-gallery' ),
						__( 'Monitor Screens', 'all-in-one-video-gallery' ),
						__( 'Classic TV', 'all-in-one-video-gallery' ),
						__( 'Photo Camera', 'all-in-one-video-gallery' ),
						__( 'Square', 'all-in-one-video-gallery' ),
						__( 'Cinemascope', 'all-in-one-video-gallery' )
					),
                    'type'              => 'text',
                    'sanitize_callback' => 'floatval'
                ),
				array(
                    'name'              => 'autoplay',
                    'label'             => __( 'Autoplay', 'all-in-one-video-gallery' ),
                    'description'       => __( 'Check this to start playing the video as soon as it is ready', 'all-in-one-video-gallery' ),
                    'type'              => 'checkbox',
					'sanitize_callback' => 'intval'
                ),
				array(
                    'name'              => 'loop',
                    'label'             => __( 'Loop', 'all-in-one-video-gallery' ),
                    'description'       => __( 'Check this, so that the video will start over again, every time it is finished', 'all-in-one-video-gallery' ),
                    'type'              => 'checkbox',
					'sanitize_callback' => 'intval'
                ),
				array(
                    'name'              => 'preload',
                    'label'             => __( 'Preload', 'all-in-one-video-gallery' ),
                    'description'       => sprintf(
						'%s<br /><br />%s<br />%s<br />%s',
						__( 'Specifies if and how the video should be loaded when the page loads.', 'all-in-one-video-gallery' ),
						__( '"Auto" - the video should be loaded entirely when the page loads', 'all-in-one-video-gallery' ),
						__( '"Metadata" - only metadata should be loaded when the page loads', 'all-in-one-video-gallery' ),
						__( '"None" - the video should not be loaded when the page loads', 'all-in-one-video-gallery' )
					),
                    'type'              => 'select',
					'options'           => array(
						'auto'     => __( 'Auto', 'all-in-one-video-gallery' ),
						'metadata' => __( 'Metadata', 'all-in-one-video-gallery' ),
						'none'     => __( 'None', 'all-in-one-video-gallery' )
					),
					'sanitize_callback' => 'sanitize_key'
                ),
				array(
                    'name'              => 'controls',
                    'label'             => __( 'Show / Hide Player Controls', 'all-in-one-video-gallery' ),
                    'description'       => '',
                    'type'              => 'multicheck',
					'options'           => array(
						'playpause'  => __( 'Play / Pause', 'all-in-one-video-gallery' ),
						'current'    => __( 'Current Time', 'all-in-one-video-gallery' ),
						'progress'   => __( 'Progressbar', 'all-in-one-video-gallery' ),
						'duration'   => __( 'Duration', 'all-in-one-video-gallery' ),
						'tracks'     => __( 'Subtitles', 'all-in-one-video-gallery' ),
						'volume'     => __( 'Volume', 'all-in-one-video-gallery' ),
						'fullscreen' => __( 'Fullscreen', 'all-in-one-video-gallery' )						
					),
					'sanitize_callback' => 'aiovg_sanitize_array'
                )
			),			
			'aiovg_image_settings' => array(
				array(
                    'name'              => 'width',
                    'label'             => __( 'Width', 'all-in-one-video-gallery' ),
                    'description'       => __( 'Always 100% of its enclosing container/html element.', 'all-in-one-video-gallery' ),
                    'type'              => 'html',
					'sanitize_callback' => 'aiovg_sanitize_int'
                ),
				array(
                    'name'              => 'ratio',
                    'label'             => __( 'Ratio', 'all-in-one-video-gallery' ),
                    'description'       => __( "In percentage. 1 to 100. Calculate images's height using the ratio value entered.", 'all-in-one-video-gallery' ),
                    'type'              => 'text',
                    'sanitize_callback' => 'floatval'
                ),
			),
			'aiovg_categories_settings' => array(
				array(
                    'name'              => 'columns',
                    'label'             => __( 'Number of Columns', 'all-in-one-video-gallery' ),
                    'description'       => __( 'Enter the number of columns you like to have in your categories page.', 'all-in-one-video-gallery' ),
                    'min'               => 1,
                    'max'               => 12,
                    'step'              => '1',
                    'type'              => 'number',
                    'sanitize_callback' => 'intval'
                ),
				array(
                    'name'              => 'orderby',
                    'label'             => __( 'Order Categories by', 'all-in-one-video-gallery' ),
                    'description'       => '',
                    'type'              => 'select',
					'options'           => array(
						'id'    => __( 'ID', 'all-in-one-video-gallery' ),
						'count' => __( 'Count', 'all-in-one-video-gallery' ),
						'name'  => __( 'Name', 'all-in-one-video-gallery' ),
						'slug'  => __( 'Slug', 'all-in-one-video-gallery' )	
					),
					'sanitize_callback' => 'sanitize_key'
                ),
				array(
                    'name'              => 'order',
                    'label'             => __( 'Sort Categories by', 'all-in-one-video-gallery' ),
                    'description'       => '',
                    'type'              => 'select',
					'options'           => array(
						'asc'  => __( 'Ascending', 'all-in-one-video-gallery' ),
						'desc' => __( 'Descending', 'all-in-one-video-gallery' )
					),
					'sanitize_callback' => 'sanitize_key'
                ),
				array(
                    'name'              => 'show_description',
                    'label'             => __( 'Show Description?', 'all-in-one-video-gallery' ),
                    'description'       => __( 'Check this to show the categories description', 'all-in-one-video-gallery' ),
                    'type'              => 'checkbox',
					'sanitize_callback' => 'intval'
                ),
				array(
                    'name'              => 'show_count',
                    'label'             => __( 'Show Videos Count?', 'all-in-one-video-gallery' ),
                    'description'       => __( 'Check this to show the videos count next to the category name', 'all-in-one-video-gallery' ),
                    'type'              => 'checkbox',
					'sanitize_callback' => 'intval'
                ),
				array(
                    'name'              => 'hide_empty',
                    'label'             => __( 'Hide Empty Categories?', 'all-in-one-video-gallery' ),
                    'description'       => __( 'Check this to hide categories with no videos', 'all-in-one-video-gallery' ),
                    'type'              => 'checkbox',
					'sanitize_callback' => 'intval'
                )
			),
			'aiovg_videos_settings' => array(
				array(
					'name'              => 'template',
					'label'             => __( 'Select a Template', 'all-in-one-video-gallery' ),
					'description'       => '',
					'type'              => 'radio',
					'options'           => aiovg_get_video_templates(),
					'sanitize_callback' => 'sanitize_key'
				),
				array(
                    'name'              => 'columns',
                    'label'             => __( 'Number of Columns', 'all-in-one-video-gallery' ),
                    'description'       => __( 'Enter the number of columns you like to have in the gallery view.', 'all-in-one-video-gallery' ),
                    'min'               => 1,
                    'max'               => 12,
                    'step'              => '1',
                    'type'              => 'number',
                    'sanitize_callback' => 'intval'
                ),
				array(
                    'name'              => 'limit',
                    'label'             => __( 'Videos per Page', 'all-in-one-video-gallery' ),
                    'description'       => __( 'Number of videos to show per page. Use a value of "0" to show all videos.', 'all-in-one-video-gallery' ),
                    'type'              => 'text',
                    'sanitize_callback' => 'intval'
                ),
				array(
                    'name'              => 'orderby',
                    'label'             => __( 'Order Videos by', 'all-in-one-video-gallery' ),
                    'description'       => '',
                    'type'              => 'select',
					'options'           => array(
						'title' => __( 'Title', 'all-in-one-video-gallery' ),
						'date'  => __( 'Date Posted', 'all-in-one-video-gallery' ),
						'views' => __( 'Views Count', 'all-in-one-video-gallery' ),
						'rand'  => __( 'Random', 'all-in-one-video-gallery' )
					),
					'sanitize_callback' => 'sanitize_key'
                ),
				array(
                    'name'              => 'order',
                    'label'             => __( 'Sort Videos by', 'all-in-one-video-gallery' ),
                    'description'       => '',
                    'type'              => 'select',
					'options'           => array(
						'asc'  => __( 'Ascending', 'all-in-one-video-gallery' ),
						'desc' => __( 'Descending', 'all-in-one-video-gallery' )
					),
					'sanitize_callback' => 'sanitize_key'
                ),
				array(
                    'name'              => 'display',
                    'label'             => __( 'Show / Hide', 'all-in-one-video-gallery' ),
                    'description'       => '',
                    'type'              => 'multicheck',
					'options'           => array(
						'count'    => __( 'Videos Count', 'all-in-one-video-gallery' ),
						'category' => __( 'Category Name', 'all-in-one-video-gallery' ),
						'date'     => __( 'Date Added', 'all-in-one-video-gallery' ),					
						'user'     => __( 'Author Name', 'all-in-one-video-gallery' ),
						'views'    => __( 'Views Count', 'all-in-one-video-gallery' ),
						'duration' => __( 'Video Duration', 'all-in-one-video-gallery' ),
						'excerpt'  => __( 'Excerpt  ( Short Description )', 'all-in-one-video-gallery' )
					),
					'sanitize_callback' => 'aiovg_sanitize_array'
                ),
				array(
                    'name'              => 'excerpt_length',
                    'label'             => __( 'Excerpt Length', 'all-in-one-video-gallery' ),
                    'description'       => __( 'Number of characters.', 'all-in-one-video-gallery' ),
                    'type'              => 'text',
                    'sanitize_callback' => 'intval'
                ),
			),
			'aiovg_video_settings' => array(
				array(
                    'name'              => 'display',
                    'label'             => __( 'Show / Hide', 'all-in-one-video-gallery' ),
                    'description'       => '',
                    'type'              => 'multicheck',
					'options'           => array(
						'category' => __( 'Category Name', 'all-in-one-video-gallery' ),
						'date'     => __( 'Date Added', 'all-in-one-video-gallery' ),					
						'user'     => __( 'Author Name', 'all-in-one-video-gallery' ),
						'views'    => __( 'Views Count', 'all-in-one-video-gallery' ),
						'related'  => __( 'Related Videos', 'all-in-one-video-gallery' )
					),
					'sanitize_callback' => 'aiovg_sanitize_array'
                ),
				array(
                    'name'              => 'has_comments',
                    'label'             => __( 'Enable Comments', 'all-in-one-video-gallery' ),
                    'description'       => __( 'Allow visitors to comment videos using the standard WordPress comment form. Comments are public', 'all-in-one-video-gallery' ),
                    'type'              => 'checkbox',
					'sanitize_callback' => 'intval'
                )
			),			
			'aiovg_permalink_settings' => array(
				array(
                    'name'              => 'video',
                    'label'             => __( 'Video Detail Page', 'all-in-one-video-gallery' ),
                    'description'       => __( 'Replaces the SLUG value used by custom post type "aiovg_videos".', 'all-in-one-video-gallery' ),
                    'type'              => 'text',
                    'sanitize_callback' => 'sanitize_text_field'
                )
			),
			'aiovg_socialshare_settings' => array(
				array(
                    'name'              => 'services',
                    'label'             => __( 'Enable Services', 'all-in-one-video-gallery' ),
                    'description'       => '',
                    'type'              => 'multicheck',
					'options'           => array(
						'facebook'  => __( 'Facebook', 'all-in-one-video-gallery' ),
						'twitter'   => __( 'Twitter', 'all-in-one-video-gallery' ),
						'gplus'     => __( 'Google Plus', 'all-in-one-video-gallery' ),
						'linkedin'  => __( 'Linkedin', 'all-in-one-video-gallery' ),
						'pinterest' => __( 'Pinterest', 'all-in-one-video-gallery' )
					),
					'sanitize_callback' => 'aiovg_sanitize_array'
                )
			),
			'aiovg_page_settings' => array(
				array(
                    'name'              => 'category',
                    'label'             => __( 'Single Category Page', 'all-in-one-video-gallery' ),
                    'description'       => __( 'This is the page where the videos from a particular category is displayed. The [aiovg_category] short code must be on this page.', 'all-in-one-video-gallery' ),
                    'type'              => 'pages',
					'sanitize_callback' => 'sanitize_key'
                ),
				array(
                    'name'              => 'search',
                    'label'             => __( 'Search Page', 'all-in-one-video-gallery' ),
                    'description'       => __( 'This is the page where the search results are displayed. The [aiovg_search] short code must be on this page.', 'all-in-one-video-gallery' ),
                    'type'              => 'pages',
					'sanitize_callback' => 'sanitize_key'
                ),
				array(
                    'name'              => 'user_videos',
                    'label'             => __( 'User Videos Page', 'all-in-one-video-gallery' ),
                    'description'       => __( 'This is the page where the videos from an user is displayed. The [aiovg_user_videos] short code must be on this page.', 'all-in-one-video-gallery' ),
                    'type'              => 'pages',
					'sanitize_callback' => 'sanitize_key'
                ),
				array(
                    'name'              => 'player',
                    'label'             => __( 'Player Page', 'all-in-one-video-gallery' ),
                    'description'       => __( 'This is the page used to show the video player.', 'all-in-one-video-gallery' ),
                    'type'              => 'pages',
					'sanitize_callback' => 'sanitize_key'
                )
			)
		);
		
		return apply_filters( 'aiovg_settings_fields', $fields );
		
	}
	
	/**
     * Initialize and registers the settings sections and fields to WordPress.
     *
     * @since    1.0.0
     */
    public function initialize_settings() {
	
        // Register settings sections & fields
        foreach ( $this->sections as $section ) {
		
			$page_hook = "aiovg_{$section['tab']}_settings";
			
			// Sections
            if ( false == get_option( $section['id'] ) ) {
                add_option( $section['id'] );
            }
			
            if ( isset( $section['description'] ) && ! empty( $section['description'] ) ) {
                $section['description'] = sprintf( '<div class="inside">%s</div>', $section['description'] );
                $callback = create_function( '', 'echo "' . str_replace( '"', '\"', $section['description'] ) . '";' );
            } elseif ( isset( $section['callback'] ) ) {
                $callback = $section['callback'];
            } else {
                $callback = null;
            }
			
            add_settings_section( $section['id'], $section['title'], $callback, $page_hook );
			
			// Fields			
			$fields = $this->fields[ $section['id'] ];
			
			foreach ( $fields as $option ) {
			
                $name     = $option['name'];
                $type     = isset( $option['type'] ) ? $option['type'] : 'text';
                $label    = isset( $option['label'] ) ? $option['label'] : '';
                $callback = isset( $option['callback'] ) ? $option['callback'] : array( $this, 'callback_' . $type );				
                $args     = array(
                    'id'                => $name,
                    'class'             => isset( $option['class'] ) ? $option['class'] : $name,
                    'label_for'         => "{$section['id']}[{$name}]",
                    'description'       => isset( $option['description'] ) ? $option['description'] : '',
                    'name'              => $label,
                    'section'           => $section['id'],
                    'size'              => isset( $option['size'] ) ? $option['size'] : null,
                    'options'           => isset( $option['options'] ) ? $option['options'] : '',
                    'sanitize_callback' => isset( $option['sanitize_callback'] ) ? $option['sanitize_callback'] : '',
                    'type'              => $type,
                    'placeholder'       => isset( $option['placeholder'] ) ? $option['placeholder'] : '',
                    'min'               => isset( $option['min'] ) ? $option['min'] : '',
                    'max'               => isset( $option['max'] ) ? $option['max'] : '',
                    'step'              => isset( $option['step'] ) ? $option['step'] : ''					
                );
				
                add_settings_field( "{$section['id']}[{$name}]", $label, $callback, $page_hook, $section['id'], $args );

            }
			
			// Creates our settings in the options table
        	register_setting( $page_hook, $section['id'], array( $this, 'sanitize_options' ) );
			
        }
		
    }

	/**
     * Displays a text field for a settings field.
     *
	 * @since    1.0.0
     * @param    array     $args    Settings field args.
     */
    public function callback_text( $args ) {
	
        $value       = esc_attr( $this->get_option( $args['id'], $args['section'], '' ) );
        $size        = isset( $args['size'] ) && ! is_null( $args['size'] ) ? $args['size'] : 'regular';
        $type        = isset( $args['type'] ) ? $args['type'] : 'text';
        $placeholder = empty( $args['placeholder'] ) ? '' : ' placeholder="' . $args['placeholder'] . '"';
		
        $html        = sprintf( '<input type="%1$s" class="%2$s-text" id="%3$s[%4$s]" name="%3$s[%4$s]" value="%5$s"%6$s/>', $type, $size, $args['section'], $args['id'], $value, $placeholder );
        $html       .= $this->get_field_description( $args );
		
        echo $html;
		
    }
	
	/**
     * Displays a url field for a settings field.
     *
	 * @since    1.0.0
     * @param    array     $args    Settings field args.
     */
    public function callback_url( $args ) {
        $this->callback_text( $args );
    }
	
	/**
     * Displays a number field for a settings field.
     *
	 * @since    1.0.0
     * @param    array    $args    Settings field args.
     */
    public function callback_number( $args ) {
	
        $value       = esc_attr( $this->get_option( $args['id'], $args['section'], 0 ) );
        $size        = isset( $args['size'] ) && ! is_null( $args['size'] ) ? $args['size'] : 'regular';
        $type        = isset( $args['type'] ) ? $args['type'] : 'number';
        $placeholder = empty( $args['placeholder'] ) ? '' : ' placeholder="' . $args['placeholder'] . '"';
        $min         = empty( $args['min'] ) ? '' : ' min="' . $args['min'] . '"';
        $max         = empty( $args['max'] ) ? '' : ' max="' . $args['max'] . '"';
        $step        = empty( $args['max'] ) ? '' : ' step="' . $args['step'] . '"';
		
        $html        = sprintf( '<input type="%1$s" class="%2$s-number" id="%3$s[%4$s]" name="%3$s[%4$s]" value="%5$s"%6$s%7$s%8$s%9$s/>', $type, $size, $args['section'], $args['id'], $value, $placeholder, $min, $max, $step );
        $html       .= $this->get_field_description( $args );
		
        echo $html;
		
    }
	
	/**
     * Displays a checkbox for a settings field.
     *
	 * @since    1.0.0
     * @param    array     $args    Settings field args.
     */
    public function callback_checkbox( $args ) {
	
        $value = esc_attr( $this->get_option( $args['id'], $args['section'], 0 ) );
		
        $html  = '<fieldset>';
        $html  .= sprintf( '<label for="%1$s[%2$s]">', $args['section'], $args['id'] );
        $html  .= sprintf( '<input type="hidden" name="%1$s[%2$s]" value="0" />', $args['section'], $args['id'] );
        $html  .= sprintf( '<input type="checkbox" class="checkbox" id="%1$s[%2$s]" name="%1$s[%2$s]" value="1" %3$s />', $args['section'], $args['id'], checked( $value, 1, false ) );
        $html  .= sprintf( '%1$s</label>', $args['description'] );
        $html  .= '</fieldset>';
		
        echo $html;
		
    }
	
	/**
     * Displays a multicheckbox for a settings field.
     *
     * @since    1.0.0
     * @param    array     $args    Settings field args.
     */
    public function callback_multicheck( $args ) {
	
        $value = $this->get_option( $args['id'], $args['section'], array() );
		
        $html  = '<fieldset>';
        $html .= sprintf( '<input type="hidden" name="%1$s[%2$s]" value="" />', $args['section'], $args['id'] );
        foreach ( $args['options'] as $key => $label ) {
            $checked  = in_array( $key, $value ) ? 'checked="checked"' : '';
            $html    .= sprintf( '<label for="%1$s[%2$s][%3$s]">', $args['section'], $args['id'], $key );
            $html    .= sprintf( '<input type="checkbox" class="checkbox" id="%1$s[%2$s][%3$s]" name="%1$s[%2$s][%3$s]" value="%3$s" %4$s />', $args['section'], $args['id'], $key, $checked );
            $html    .= sprintf( '%1$s</label><br>',  $label );
        }
        $html .= $this->get_field_description( $args );
        $html .= '</fieldset>';
		
        echo $html;
		
    }
	
	/**
     * Displays a radio button for a settings field.
     *
     * @since    1.0.0
     * @param    array     $args    Settings field args.
     */
    public function callback_radio( $args ) {
	
        $value = $this->get_option( $args['id'], $args['section'], '' );
		
        $html  = '<fieldset>';
        foreach ( $args['options'] as $key => $label ) {
            $html .= sprintf( '<label for="%1$s[%2$s][%3$s]">',  $args['section'], $args['id'], $key );
            $html .= sprintf( '<input type="radio" class="radio" id="%1$s[%2$s][%3$s]" name="%1$s[%2$s]" value="%3$s" %4$s />', $args['section'], $args['id'], $key, checked( $value, $key, false ) );
            $html .= sprintf( '%1$s</label><br>', $label );
        }
        $html .= $this->get_field_description( $args );
        $html .= '</fieldset>';
		
        echo $html;
		
    }
	
	/**
     * Displays a selectbox for a settings field.
     *
     * @since    1.0.0
     * @param    array     $args    Settings field args.
     */
    public function callback_select( $args ) {
	
        $value = esc_attr( $this->get_option( $args['id'], $args['section'], '' ) );
        $size  = isset( $args['size'] ) && ! is_null( $args['size'] ) ? $args['size'] : 'regular';
		
        $html  = sprintf( '<select class="%1$s" name="%2$s[%3$s]" id="%2$s[%3$s]">', $size, $args['section'], $args['id'] );
        foreach ( $args['options'] as $key => $label ) {
            $html .= sprintf( '<option value="%s"%s>%s</option>', $key, selected( $value, $key, false ), $label );
        }
        $html .= sprintf( '</select>' );
        $html .= $this->get_field_description( $args );
		
        echo $html;
		
    }
	
	/**
     * Displays a textarea for a settings field.
     *
     * @since    1.0.0
     * @param    array    $args    Settings field args.
     */
    public function callback_textarea( $args ) {
	
        $value       = esc_textarea( $this->get_option( $args['id'], $args['section'], '' ) );
        $size        = isset( $args['size'] ) && ! is_null( $args['size'] ) ? $args['size'] : 'regular';
        $placeholder = empty( $args['placeholder'] ) ? '' : ' placeholder="'.$args['placeholder'].'"';
		
        $html        = sprintf( '<textarea rows="5" cols="55" class="%1$s-text" id="%2$s[%3$s]" name="%2$s[%3$s]"%4$s>%5$s</textarea>', $size, $args['section'], $args['id'], $placeholder, $value );
        $html       .= $this->get_field_description( $args );
		
        echo $html;
		
    }
	
	/**
     * Displays the html for a settings field.
     *
     * @since    1.0.0
     * @param    array    $args    Settings field args.
     */
    public function callback_html( $args ) {
        echo $this->get_field_description( $args );
    }
	
	 /**
     * Displays a rich text textarea for a settings field.
     *
     * @since    1.0.0
     * @param    array    $args    Settings field args.
     */
    public function callback_wysiwyg( $args ) {
	
        $value = $this->get_option( $args['id'], $args['section'], '' );
        $size  = isset( $args['size'] ) && ! is_null( $args['size'] ) ? $args['size'] : '500px';
		
        echo '<div style="max-width: ' . $size . ';">';
        $editor_settings = array(
            'teeny'         => true,
            'textarea_name' => $args['section'] . '[' . $args['id'] . ']',
            'textarea_rows' => 10
        );
        if ( isset( $args['options'] ) && is_array( $args['options'] ) ) {
            $editor_settings = array_merge( $editor_settings, $args['options'] );
        }
        wp_editor( $value, $args['section'] . '-' . $args['id'], $editor_settings );
        echo '</div>';
        echo $this->get_field_description( $args );
		
    }
	
	/**
     * Displays a file upload field for a settings field.
     *
     * @since    1.0.0
     * @param    array    $args    Settings field args.
     */
    public function callback_file( $args ) {
	
        $value = esc_attr( $this->get_option( $args['id'], $args['section'], '' ) );
        $size  = isset( $args['size'] ) && ! is_null( $args['size'] ) ? $args['size'] : 'regular';
        $id    = $args['section'] . '[' . $args['id'] . ']';
        $label = isset( $args['options']['button_label'] ) ? $args['options']['button_label'] : __( 'Choose File', 'all-in-one-video-gallery' );
		
        $html  = sprintf( '<input type="text" class="%1$s-text aiovg-url" id="%2$s[%3$s]" name="%2$s[%3$s]" value="%4$s"/>', $size, $args['section'], $args['id'], $value );
        $html .= '<input type="button" class="button aiovg-browse" value="' . $label . '" />';
        $html .= $this->get_field_description( $args );
		
        echo $html;
		
    }
	
	/**
     * Displays a password field for a settings field.
     *
     * @since    1.0.0
     * @param    array    $args    Settings field args.
     */
    public function callback_password( $args ) {
	
        $value = esc_attr( $this->get_option( $args['id'], $args['section'], '' ) );
        $size  = isset( $args['size'] ) && ! is_null( $args['size'] ) ? $args['size'] : 'regular';
		
        $html  = sprintf( '<input type="password" class="%1$s-text" id="%2$s[%3$s]" name="%2$s[%3$s]" value="%4$s"/>', $size, $args['section'], $args['id'], $value );
        $html .= $this->get_field_description( $args );
		
        echo $html;
		
    }
	
	/**
     * Displays a color picker field for a settings field.
     *
     * @since    1.0.0
     * @param    array    $args    Settings field args.
     */
    public function callback_color( $args ) {
	
        $value = esc_attr( $this->get_option( $args['id'], $args['section'], '#ffffff' ) );
        $size  = isset( $args['size'] ) && ! is_null( $args['size'] ) ? $args['size'] : 'regular';
		
        $html  = sprintf( '<input type="text" class="%1$s-text aiovg-color-picker-field" id="%2$s[%3$s]" name="%2$s[%3$s]" value="%4$s" data-default-color="%5$s" />', $size, $args['section'], $args['id'], $value, '#ffffff' );
        $html .= $this->get_field_description( $args );
		
        echo $html;
		
    }
	
	/**
     * Displays a select box for creating the pages select box.
     *
     * @since    1.0.0
     * @param    array    $args    Settings field args.
     */
    public function callback_pages( $args ) {
	
        $dropdown_args = array(
			'show_option_none'  => '-- ' . __( 'Select a page', 'all-in-one-video-gallery' ) . ' --',
			'option_none_value' => -1,
            'selected'          => esc_attr($this->get_option($args['id'], $args['section'], -1 ) ),
            'name'              => $args['section'] . '[' . $args['id'] . ']',
            'id'                => $args['section'] . '[' . $args['id'] . ']',
            'echo'              => 0			
        );
		
        $html  = wp_dropdown_pages( $dropdown_args );
		$html .= $this->get_field_description( $args );
		
        echo $html;
		
    }
	
	/**
     * Get field description for display.
     *
	 * @since    1.0.0
     * @param    array    $args    Settings field args.
     */
    public function get_field_description( $args ) {
	
        if ( ! empty( $args['description'] ) ) {
            $description = sprintf( '<p class="description">%s</p>', $args['description'] );
        } else {
            $description = '';
        }
		
        return $description;
		
    }
	
	/**
     * Sanitize callback for Settings API.
     *
	 * @since     1.0.0
     * @param     array    $options    The unsanitized collection of options.
     * @return                         The collection of sanitized values.
     */
    public function sanitize_options( $options ) {
	
        if ( ! $options ) {
            return $options;
        }
		
        foreach ( $options as $option_slug => $option_value ) {		
            $sanitize_callback = $this->get_sanitize_callback( $option_slug );
			
            // If callback is set, call it
            if ( $sanitize_callback ) {
                $options[ $option_slug ] = call_user_func( $sanitize_callback, $option_value );
                continue;
            }			
        }
		
        return $options;
		
    }
	
	/**
     * Get sanitization callback for given option slug.
     *
	 * @since     1.0.0
     * @param     string    $slug    Option slug.
     * @return    mixed              String or bool false.
     */
    public function get_sanitize_callback( $slug = '' ) {
	
        if ( empty( $slug ) ) {
            return false;
        }
		
        // Iterate over registered fields and see if we can find proper callback
        foreach ( $this->fields as $section => $options ) {
            foreach ( $options as $option ) {
                if ( $option['name'] != $slug ) {
                    continue;
                }
				
                // Return the callback name
                return isset( $option['sanitize_callback'] ) && is_callable( $option['sanitize_callback'] ) ? $option['sanitize_callback'] : false;
            }
        }
		
        return false;
		
    }
	
	/**
     * Get the value of a settings field
     *
	 * @since     1.0.0
     * @param     string    $option     Settings field name.
     * @param     string    $section    The section name this field belongs to
     * @param     string    $default    Default text if it's not found.
     * @return    string
     */
    public function get_option( $option, $section, $default = '' ) {
	
        $options = get_option( $section );
		
        if ( ! empty( $options[ $option ] ) ) {
            return $options[ $option ];
        }
		
        return $default;
		
    }
	
}