Load WooCommerce templates from my plugin folder first

Question

I try to write a plugin for WooCommerce (https://github.com/bassjobsen/woocommerce-twitterbootstrap). I want my templates load like this:

1. my custom theme / template path / template name
2. my custom theme / template
3. my plugin / template name
4. woocommerce / template name

So when the template not exists in the theme folder it is load from my plugin folder (if exists) instead of the Woocommece folder. On http://www.skyverge.com/blog/override-woocommerce-template-file-within-a-plugin/ if found a working solution for templates load by woocommerce_get_template. But this will not work for woocommerce_get_template_part cause this function call locate_template instead of woocommerce_locate_template (is this a bug?).

Question: I want to know how to overwrite / manipulate locate_template() so it try to load the files from my plugin folder first. Or any other solution to do this.

update thanks to @jesper i cloud load templates now:

function 

my_template_redirect(){
   //pages you want to make true, ex. is_shop()
   global $woocommerce;
   if(is_shop()) {

       $plugin_dir = WP_PLUGIN_DIR.'/'.str_replace( basename( __FILE__), "", plugin_basename(__FILE__) );

    var_dump($plugin_dir);

    load_template($plugin_dir . '/templates/archive-product.php');
   }
}

add_action('template_redirect','my_template_redirect');

/templates/archive-product.php includes content-product.php from the same plugin template dir. content-product.php makes use of the global $product which is null in this case. Do i need to load a other function to set $product?

The above also gives my an other error: PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'woocommerce_before_main_content_grid' not found or invalid function name in /home/bass/Dropbox/testomgeving/jamedotheme/wordpress/wp-includes/plugin.php

With the above code i could write a function to conditional include files in templates/archive-product.php (so solved!)

Answer 1

I think you can use template redirect action.

I don't test it but it should work:

function my_template_redirect(){
   //pages you want to make true, ex. is_shop()
   if(is_shop()) {
       $plugin_dir = WP_PLUGIN_DIR.'/'.str_replace( basename( __FILE__), "", plugin_basename(__FILE__) );
    load_template($plugin_dir . 'your-template.php');
   }
}

add_action('template_redirect','my_template_redirect');