//Example filter usage for highlight and share
//https://github.com/ronalfy/highlight-and-share

/* The following filters take and return booleans (true, false)*/
/* Call WordPress functions __return_false or __return_true */
add_filter( 'has_show_facebook', '__return_true' ); //Disable or enable facebook sharing
add_filter( 'has_show_twitter', '__return_true' ); //Disable or enable twitter sharing
add_filter( 'has_load_css', '__return_true' ); //Disable or enable plugin's CSS - Use your own
add_filter( 'has_enable_content', '__return_true' ); //Disable or enable main post content
add_filter( 'has_enable_excerpt', '__return_true' ); //Disable or enable excerpt content
add_filter( 'has_enable_mobile', '__return_true' ); //Disable or enable on mobile devices

/* Override the Facebook share text (default is Share) */
add_filter( 'has_facebook_text', 'has_override_facebook_text' );
function has_override_facebook_text( $default ) {
	return 'Facebook';
}

/* Override the Twitter share text (default is Tweet) */
add_filter( 'has_twitter_text', 'has_override_twitter_text' );
function has_override_twitter_text( $default ) {
	return 'Twitter';
}

/* Override the JavaScript classes (assuming jQuery class format with no periods) */
add_filter( 'has_js_classes', 'has_override_js_classes' );
function has_override_js_classes( $content ) {
	return 'entry-content,type-page,type-post';
}

/* Add JS IDs */
add_filter( 'has_js_ids', 'has_override_js_ids' );
function has_override_js_ids( $content = array() ) {
	if ( !is_array( $content ) ) $content = array();
	$new_arr = array( 'content', 'comments' );
	$content = array_merge( $content, $new_arr );
	return $content;
}

/* Add JS elements */
add_filter( 'has_js_elements', 'has_override_js_elements' );
function has_override_js_elements( $content = array() ) {
	if ( !is_array( $content ) ) $content = array();
	$new_arr = array( 'blockquote' );
	$content = array_merge( $content, $new_arr );
	return $content;
}

/* Override the Twitter username (no @ symbol needed) */
add_filter( 'has_twitter_username', 'has_override_twitter_username' );
function has_override_twitter_username( $username ) {
	return 'wordpress';
}

add_action( 'wp', function() {
	if ( is_front_page() ) {
		add_filter( 'has_show_facebook', '__return_false' );
		add_filter( 'has_show_twitter', '__return_false' );
	}
} );

add_filter( 'has_content_url', function( $url, $post_id ) {
	return 'https://wordpress.org';
}, 10, 2 );

//Demonstrates how to select paragraph text only

add_filter( 'has_js_selectors', 'hs_custom_selectors', 10, 5 );
function hs_custom_selectors( $selectors, $content = array(), $classes = array(), $ids = array(), $elements = array() ) {
	//With $content, $classes, $ids, $elements, you can build your own selectors
	//Or just override $selectors (a string) with your own custom ones
	return '.has-content-area p, .has-excerpt-area p';
}

<?php
add_filter(
	'has_show_twitter',
	function( $show_twitter ) {
		if ( is_page() ) {
			return false;
		}
		return $show_twitter;
	}
);

<?php
// Modify the Twitter label.
add_filter(
	'has_twitter_text',
	function( $twitter_label ) {
		return 'Tweet';
	}
);
// Modify the Twitter Tooltip.
add_filter(
	'has_twitter_tooltip',
	function( $twitter_tooltip ) {
		return 'Share on Twitter';
	}
);