<?php
/**
 * Actions and filters directly related to WordPress hooks.
 * 
 * @author Dan Suleski
 * @package bpq
 * @since bpq 1.0
 */

namespace bpq;
if ( !defined( 'ABSPATH' ) ) exit;  // Exit if accessed directly



/**
 * Core.
 * 
 * Add CSS classes that represent the selected tones to the structure
 * that can be used in other CSS/LESS to interact better between the
 * different kinds of tones.
 */

add_filter( 'body_class', 'bpq\body_classes' );


/**
 * Enqueue.
 * 
 * Use WordPress' enqueue methods to add CSS and JS in the appropriate
 * places with respect to dependencies.
 */

add_action( 'wp_enqueue_scripts', 'bpq\queue_bootstrap', 100 );
add_action( 'wp_enqueue_scripts', 'bpq\queue_font_awesome', 200 );
add_action( 'wp_enqueue_scripts', 'bpq\queue_core', 300 );
add_action( 'wp_enqueue_scripts', 'bpq\queue_tone', 400 );
add_action( 'login_enqueue_scripts', 'bpq\queue_login', 100 );
add_action( 'login_enqueue_scripts', 'bpq\queue_tone', 200 );
add_action( 'admin_enqueue_scripts', 'bpq\queue_font_awesome' );
add_action( 'admin_enqueue_scripts', 'bpq\queue_admin' );

    
/**
 * Theme customizer.
 * 
 * The order of action hooks does not matter for the sections because
 * the priorities are defined in each of the callbacks.
 */

add_action( 'customize_controls_enqueue_scripts', 'bpq\queue_customizer' );

add_filter( 'template_include', 'bpq\cz_template_include' );
add_filter( 'the_content', 'bpq\cz_change_preview_content' );
add_filter( 'the_author', 'bpq\cz_change_preview_author' );
add_filter( 'the_category', 'bpq\cz_change_preview_category' );
add_filter( 'get_the_date', 'bpq\cz_change_preview_date', 9999999, 2 );
add_filter( 'the_tags', 'bpq\cz_change_preview_tag' );

add_action( 'customize_register', 'bpq\cz_register' );


/**
 * Feature support.
 * 
 * Add support for a number of features.  Note: The WP documentation states to use
 * 'after_theme_setup' from a plugin and call directly from a theme; however,
 * I'd like to keep with the action paradigm and 'init' seems to work here.
 */

add_action( 'init', 'bpq\register_feature_support' );


/**
 * Widgets.
 * 
 * Add widgetized areas to the frame along with custom widgets.  Ensure all
 * widgets have consistent markup and styling.  Allow shortcodes to be used
 * inside widgets - specifically, the text widgets.
 * 
 * Note:    When switching themes, all widgets get pushed into the first
 *          widgetized area.  That means that it would normally go into
 *          the Top Bar, which typically looks weird.  Instead, the
 *          following registrations ensure that the sidebars appear at
 *          first in the hopes to catch any of these widgets between
 *          theme switches.
 */

add_action( 'widgets_init', 'bpq\register_top_widgetized_areas' );
add_action( 'widgets_init', 'bpq\register_masthead_widgetized_areas' );
add_action( 'widgets_init', 'bpq\register_sidebar_widgetized_areas', 9 );
add_action( 'widgets_init', 'bpq\register_pedestal_widgetized_areas' );
add_action( 'widgets_init', 'bpq\register_bottom_widgetized_areas' );

add_filter( 'dynamic_sidebar_params', 'bpq\change_widget_args' );
add_filter( 'get_search_form', 'bpq\change_search_form' );

add_filter( 'widget_text', '\do_shortcode' );


/**
 * Navigation menus.
 * 
 * Front-end:
 *      Differentiate the current page item from all other items in the menu
 *      by adding a class that will add the highlight.
 * 
 * Back-end
 *      To add custom fields to the menu elements, the special Walker for
 *      editing menus must be changed.  There are really no usable hooks
 *      in the default Walker to add fields, but there is a filter to
 *      override the Walker that is used.  On top of that, additions to
 *      the items class that the front-end ultimately uses must be made
 *      and analysis of the POST (or REQUEST in this case) is done to
 *      ensure that the options chosen in the backend are saved.
 * 
 *      Also define valid locations for menus within the theme.
 * 
 * @link http://codex.wordpress.org/Function_Reference/wp_nav_menu
 */

add_filter( 'nav_menu_css_class', 'bpq\highlight_current_nav_item', 10, 2 );

add_filter( 'wp_edit_nav_menu_walker', 'bpq\menu_edit_walker' );
add_filter( 'wp_setup_nav_menu_item', 'bpq\menu_edit_setup' );
add_action( 'wp_update_nav_menu_item', 'bpq\menu_edit_update', 10, 3 );

add_action( 'init', 'bpq\register_menu_theme_locations' );


/**
 * Administration hooks.
 * 
 * Display notices in the WordPress Administrative front-end (wp-admin.php).
 * 
 * Ensure that the TinyMCE editor uses the same styles as the front-end.
 * 
 * Add/remove menu pages.
 * 
 * Redirect new theme activation to the main BluePrint-Q landing page.
 */

add_filter( 'admin_title', 'bpq\admin_title', 10, 2 );
add_action( 'admin_notices', 'bpq\admin_notice_menus' );
add_action( 'admin_notices', 'bpq\admin_notice_widgets' );
add_action( 'after_setup_theme', 'bpq\style_editor' );
add_action( 'admin_menu', 'bpq\admin_menus' );
if ( BPQ_EDITION >= 2 )     //WP-DIR
{
    add_action( 'after_setup_theme', 'bpq\theme_activation' );
    add_filter( 'admin_footer_text', 'bpq\admin_footer_left' );
    add_filter( 'update_footer', 'bpq\admin_footer_right', 11 );        //  Will not work if priority defaults to 10
}
if ( !constant( 'WP_DEBUG' ) ) add_filter( 'show_admin_bar', '__return_false' );


/**
 * Content.
 * 
 * Changing the 'read more' link is fairly straightforward.  Here are the cases:
 *      1. Generated excerpts > 55 words
 *      2. Full post teasers (using the more tag in the post)
 * 
 * However, adding a 'read more' link is really complicated.  At this time
 * these cases are not all covered, but are listed for future reference:
 *      3. Generated excerpts <= 55 words
 *      4. Explicit excerpts (author defines the excerpt)
 *      5. Excerpt teasers (when the teaser is shorter than the excerpt)
 *      6. Excerpts without a title/teaser
 *      7. Full posts without a title/teaser
 *      8. Full posts
 * 
 * @link http://codex.wordpress.org/Excerpt
 * 
 * Additionally, in order to change the classes assigned to avatars
 * (the icons that display in the comments section), call the hook.
 */

add_filter( 'excerpt_more', 'bpq\change_read_more' );           //  Handles case #1
add_filter( 'the_content_more_link', 'bpq\change_read_more' );  //  Handles case #2
add_filter( 'the_excerpt', 'bpq\append_read_more', 11 );        //  Handles cases #3, #4, #5
//  Note: Cannot use 'get_the_excerpt' hook; the 'the_excerpt' hook must be higher than 10 to prevent an empty argument.

add_filter( 'pre_get_posts', 'bpq\remove_sticky_posts' );

add_filter( 'get_avatar', 'bpq\change_avatar_class' );


/**
 * Title.
 * 
 * Sets up the title that typically appears in the browser tab.
 * 
 * WordPress requires themes use the 'wp_title' filter.
 * @link http://make.wordpress.org/themes/guidelines/guidelines-code-quality/
 */

add_filter( 'wp_title', 'bpq\title' );


?>