<?php

/**
 * Add a "Sidebar" selection metabox.
 */
function mts_add_sidebar_metabox() {
	$screens = array('post', 'page');
	foreach ($screens as $screen) {
		add_meta_box(
			'mts_sidebar_metabox',				  // id
			__('Sidebar', 'socialnow' ),	// title
			'mts_inner_sidebar_metabox',			// callback
			$screen,								// post_type
			'side',								 // context (normal, advanced, side)
			'high'							   // priority (high, core, default, low)
													// callback args ($post passed by default)
		);
	}
}
add_action('add_meta_boxes', 'mts_add_sidebar_metabox');


/**
 * Print the box content.
 * 
 * @param WP_Post $post The object for the current post/page.
 */
function mts_inner_sidebar_metabox($post) {
	global $wp_registered_sidebars;
	
	// Add an nonce field so we can check for it later.
	wp_nonce_field('mts_inner_sidebar_metabox', 'mts_inner_sidebar_metabox_nonce');
	
	/*
	* Use get_post_meta() to retrieve an existing value
	* from the database and use the value for the form.
	*/
	$custom_sidebar = get_post_meta( $post->ID, '_mts_custom_sidebar', true );
	$sidebar_location = get_post_meta( $post->ID, '_mts_sidebar_location', true );

	// Select custom sidebar from dropdown
	echo '<select name="mts_custom_sidebar" id="mts_custom_sidebar" style="margin-bottom: 10px;">';
	echo '<option value="" '.selected('', $custom_sidebar).'>-- '.__('Default', 'socialnow' ).' --</option>';
	
	// Exclude built-in sidebars
	$hidden_sidebars = array('sidebar', 'footer-first', 'footer-first-2', 'footer-first-3', 'footer-first-4', 'footer-second', 'footer-second-2', 'footer-second-3', 'footer-second-4', 'widget-header','shop-sidebar', 'product-sidebar');	
	
	foreach ($wp_registered_sidebars as $sidebar) {
		if (!in_array($sidebar['id'], $hidden_sidebars)) {
			echo '<option value="'.esc_attr($sidebar['id']).'" '.selected($sidebar['id'], $custom_sidebar, false).'>'.$sidebar['name'].'</option>';
		}
	}
	echo '<option value="mts_nosidebar" '.selected('mts_nosidebar', $custom_sidebar).'>-- '.__('No sidebar --', 'socialnow' ).'</option>';
	echo '</select><br />';
	
	// Select single layout (left/right sidebar)
	echo '<div class="mts_sidebar_location_fields">';
	echo '<label for="mts_sidebar_location_default" style="display: inline-block; margin-right: 20px;"><input type="radio" name="mts_sidebar_location" id="mts_sidebar_location_default" value=""'.checked('', $sidebar_location, false).'>'.__('Default side', 'socialnow' ).'</label>';
	echo '<label for="mts_sidebar_location_left" style="display: inline-block; margin-right: 20px;"><input type="radio" name="mts_sidebar_location" id="mts_sidebar_location_left" value="left"'.checked('left', $sidebar_location, false).'>'.__('Left', 'socialnow' ).'</label>';
	echo '<label for="mts_sidebar_location_right" style="display: inline-block; margin-right: 20px;"><input type="radio" name="mts_sidebar_location" id="mts_sidebar_location_right" value="right"'.checked('right', $sidebar_location, false).'>'.__('Right', 'socialnow' ).'</label>';
	echo '</div>';
	
	?>
	<script type="text/javascript">
		jQuery(document).ready(function($) {
			function mts_toggle_sidebar_location_fields() {
				$('.mts_sidebar_location_fields').toggle(($('#mts_custom_sidebar').val() != 'mts_nosidebar'));
			}
			mts_toggle_sidebar_location_fields();
			$('#mts_custom_sidebar').change(function() {
				mts_toggle_sidebar_location_fields();
			});
		});
	</script>
	<?php
	//debug
	//global $wp_meta_boxes;
}

/**
 * When the post is saved, saves our custom data.
 *
 * @param int $post_id The ID of the post being saved.
 *
 * @return int
 */
function mts_save_custom_sidebar( $post_id ) {
	
	/*
	* We need to verify this came from our screen and with proper authorization,
	* because save_post can be triggered at other times.
	*/
	
	// Check if our nonce is set.
	if ( ! isset( $_POST['mts_inner_sidebar_metabox_nonce'] ) )
	return $post_id;
	
	$nonce = $_POST['mts_inner_sidebar_metabox_nonce'];
	
	// Verify that the nonce is valid.
	if ( ! wp_verify_nonce( $nonce, 'mts_inner_sidebar_metabox' ) )
	  return $post_id;
	
	// If this is an autosave, our form has not been submitted, so we don't want to do anything.
	if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) 
	  return $post_id;
	
	// Check the user's permissions.
	if ( 'page' == $_POST['post_type'] ) {
	
	if ( ! current_user_can( 'edit_page', $post_id ) )
		return $post_id;
	
	} else {
	
	if ( ! current_user_can( 'edit_post', $post_id ) )
		return $post_id;
	}
	
	/* OK, its safe for us to save the data now. */
	
	// Sanitize user input.
	$sidebar_name = sanitize_text_field( $_POST['mts_custom_sidebar'] );
	$sidebar_location = sanitize_text_field( $_POST['mts_sidebar_location'] );
	
	// Update the meta field in the database.
	update_post_meta( $post_id, '_mts_custom_sidebar', $sidebar_name );
	update_post_meta( $post_id, '_mts_sidebar_location', $sidebar_location );
}
add_action( 'save_post', 'mts_save_custom_sidebar' );


/**
 * Add "Post Template" selection meta box
 */
function mts_add_posttemplate_metabox() {
	add_meta_box(
		'mts_posttemplate_metabox',		 // id
		__('Template', 'socialnow' ),	  // title
		'mts_inner_posttemplate_metabox',   // callback
		'post',							 // post_type
		'side',							 // context (normal, advanced, side)
		'high'							  // priority (high, core, default, low)
	);
}
//add_action('add_meta_boxes', 'mts_add_posttemplate_metabox');


/**
 * Print the box content.
 * 
 * @param WP_Post $post The object for the current post/page.
 */
function mts_inner_posttemplate_metabox($post) {
	
	// Add an nonce field so we can check for it later.
	wp_nonce_field('mts_inner_posttemplate_metabox', 'mts_inner_posttemplate_metabox_nonce');
	
	/*
	* Use get_post_meta() to retrieve an existing value
	* from the database and use the value for the form.
	*/
	$posttemplate = get_post_meta( $post->ID, '_mts_posttemplate', true );

	// Select post template
	echo '<select name="mts_posttemplate" style="margin-bottom: 10px;">';
	echo '<option value="" '.selected('', $posttemplate).'>'.__('Default Post Template', 'socialnow' ).'</option>';
	echo '<option value="parallax" '.selected('parallax', $posttemplate).'>'.__('Parallax Template', 'socialnow' ).'</option>';
	echo '<option value="zoomout" '.selected('zoomout', $posttemplate).'>'.__('Zoom Out Effect Template', 'socialnow' ).'</option>';
	echo '</select><br />';
}

/**
 * When the post is saved, saves our custom data.
 *
 * @param int $post_id The ID of the post being saved.
 *
 * @return int
 */
function mts_save_posttemplate( $post_id ) {
	
	/*
	* We need to verify this came from our screen and with proper authorization,
	* because save_post can be triggered at other times.
	*/
	
	// Check if our nonce is set.
	if ( ! isset( $_POST['mts_inner_posttemplate_metabox_nonce'] ) )
	return $post_id;
	
	$nonce = $_POST['mts_inner_posttemplate_metabox_nonce'];
	
	// Verify that the nonce is valid.
	if ( ! wp_verify_nonce( $nonce, 'mts_inner_posttemplate_metabox' ) )
	  return $post_id;
	
	// If this is an autosave, our form has not been submitted, so we don't want to do anything.
	if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) 
	  return $post_id;
	
	// Check the user's permissions.
	if ( 'page' == $_POST['post_type'] ) {
	
	if ( ! current_user_can( 'edit_page', $post_id ) )
		return $post_id;
	
	} else {
	
	if ( ! current_user_can( 'edit_post', $post_id ) )
		return $post_id;
	}
	
	/* OK, its safe for us to save the data now. */
	
	// Sanitize user input.
	$posttemplate = sanitize_text_field( $_POST['mts_posttemplate'] );
	
	// Update the meta field in the database.
	update_post_meta( $post_id, '_mts_posttemplate', $posttemplate );
}
add_action( 'save_post', 'mts_save_posttemplate' );

// Related function: mts_get_posttemplate( $single_template ) in functions.php

/**
 * Add "Page Header Animation" metabox.
 */
function mts_add_postheader_metabox() {
	$screens = array('post', 'page');
	foreach ($screens as $screen) {
		add_meta_box(
			'mts_postheader_metabox',				  // id
			__('Header Animation', 'socialnow' ),	// title
			'mts_inner_postheader_metabox',			// callback
			$screen,								// post_type
			'side',								 // context (normal, advanced, side)
			'high'							   // priority (high, core, default, low)
													// callback args ($post passed by default)
		);
	}
}
add_action('add_meta_boxes', 'mts_add_postheader_metabox');


/**
 * Print the box content.
 * 
 * @param WP_Post $post The object for the current post/page.
 */
function mts_inner_postheader_metabox($post) {
	
	// Add an nonce field so we can check for it later.
	wp_nonce_field('mts_inner_postheader_metabox', 'mts_inner_postheader_metabox_nonce');
	
	/*
	* Use get_post_meta() to retrieve an existing value
	* from the database and use the value for the form.
	*/
	$postheader = get_post_meta( $post->ID, '_mts_postheader', true );

	// Select post header effect
	echo '<select name="mts_postheader" style="margin-bottom: 10px;">';
	echo '<option value="" '.selected('', $postheader).'>'.__('None', 'socialnow' ).'</option>';
	echo '<option value="parallax" '.selected('parallax', $postheader).'>'.__('Parallax Effect', 'socialnow' ).'</option>';
	echo '<option value="zoomout" '.selected('zoomout', $postheader).'>'.__('Zoom Out Effect', 'socialnow' ).'</option>';
	echo '</select><br />';
}

/**
 * When the post is saved, saves our custom data.
 *
 * @param int $post_id The ID of the post being saved.
 *
 * @return int
 *
 * @see mts_get_post_header_effect
 */
function mts_save_postheader( $post_id ) {
	
	/*
	* We need to verify this came from our screen and with proper authorization,
	* because save_post can be triggered at other times.
	*/
	
	// Check if our nonce is set.
	if ( ! isset( $_POST['mts_inner_postheader_metabox_nonce'] ) )
	return $post_id;
	
	$nonce = $_POST['mts_inner_postheader_metabox_nonce'];
	
	// Verify that the nonce is valid.
	if ( ! wp_verify_nonce( $nonce, 'mts_inner_postheader_metabox' ) )
	  return $post_id;
	
	// If this is an autosave, our form has not been submitted, so we don't want to do anything.
	if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) 
	  return $post_id;
	
	// Check the user's permissions.
	if ( 'page' == $_POST['post_type'] ) {
	
		if ( ! current_user_can( 'edit_page', $post_id ) )
			return $post_id;
	
	} else {
	
		if ( ! current_user_can( 'edit_post', $post_id ) )
			return $post_id;
	}
	
	/* OK, its safe for us to save the data now. */
	
	// Sanitize user input.
	$postheader = sanitize_text_field( $_POST['mts_postheader'] );
	
	// Update the meta field in the database.
	update_post_meta( $post_id, '_mts_postheader', $postheader );
}
add_action( 'save_post', 'mts_save_postheader' );