Better component rendering for Wordpress themes.

wp_render.php

<?php
/*
Plugin Name: Apsis Template Render
Plugin URL: http://apsis.io/
Description: Better component rendering for Wordpress Themes
Version: 1.0.0
Author: Apsis Labs
Author URI: http://apsis.io/
*/

/**
 * Get path for templates using same structure as {@link ap_include_template_part},
 * returns path for use with include to allow for passing variables
 * between templates. If a name parameter is passed but not found, will fall
 * back to using file with just the slug.
 *
 * @param  string $slug Primary name for template part
 * @param  string $name Secondary name for template part
 * @return string       Fully qualified path for relevant template part
 */
if ( !function_exists('ap_find_template_part') ) {
    function ap_find_template_part($slug, $name = null) {
        do_action( "find_template_part_{$slug}", $slug, $name );

        $templates = array();
        $name = (string) $name;

        if ( '' !== $name ) {
            $templates[] = "{$slug}-{$name}.php";
        }

        $templates[] = "{$slug}.php";

        return locate_template($templates, false, false);
    }
}

/**
 * Return the rendered HTML of a template using {@link ap_find_template_part}.
 * The params object is extracted into variables for use in the template.
 *
 * @param string $slug   Primary name for template part
 * @param object $params Object of variables to be available to template
 * @param string $name   Secondary name for template part
 * @return string        Rendered HTML of template
 */
if ( !function_exists('ap_get_render') ) {
    function ap_get_render($slug, $params = array(), $name = null) {
        do_action( "get_render_{$slug}", $slug, $params, $name);
        $template_part = ap_find_template_part($slug, $name);

        if ( !empty($template_part) ) {
            ob_start();
            extract($params, EXTR_SKIP);
            include($template_part);
            return ob_get_clean();
        }
    }
}

/**
 * Outputs the rendered HTML as fetched by {@link ap_get_render}
 * @param string $slug   Primary name for template part
 * @param object $params Object of variables to be available to template
 * @param string $name   Secondary name for template part
 */
if ( !function_exists('ap_render') ) {
    function ap_render($slug, $params = array(), $name = null) {
        do_action( "render_template_part_{$slug}", $slug, $params, $name);
        echo ap_get_render($slug, $params, $name);
    }
}