<?php

/**

 * General template tags that can go anywhere in a template.

 *

 * @package WordPress

 * @subpackage Template

 */

/**

 * Load header template.

 *

 * Includes the header template for a theme or if a name is specified then a

 * specialised header will be included. If the theme contains no header.php file

 * then the header from the default theme will be included.

 *

 * For the parameter, if the file is called "header-special.php" then specify

 * "special".

 *

 * @uses locate_template()

 * @since 1.5.0

 * @uses do_action() Calls 'get_header' action.

 *

 * @param string $name The name of the specialised header.

 */

function get_header( $name = null ) {

	do_action( 'get_header', $name );

	$templates = array();

	if ( isset($name) )

		$templates[] = "header-{$name}.php";

	$templates[] = "header.php";

	if ('' == locate_template($templates, true))

		load_template( get_theme_root() . '/default/header.php');

}

/**

 * Load footer template.

 *

 * Includes the footer template for a theme or if a name is specified then a

 * specialised footer will be included. If the theme contains no footer.php file

 * then the footer from the default theme will be included.

 *

 * For the parameter, if the file is called "footer-special.php" then specify

 * "special".

 *

 * @uses locate_template()

 * @since 1.5.0

 * @uses do_action() Calls 'get_footer' action.

 *

 * @param string $name The name of the specialised footer.

 */

function get_footer( $name = null ) {

	do_action( 'get_footer', $name );

	$templates = array();

	if ( isset($name) )

		$templates[] = "footer-{$name}.php";

	$templates[] = "footer.php";

	if ('' == locate_template($templates, true))

		load_template( get_theme_root() . '/default/footer.php');

}

/**

 * Load sidebar template.

 *

 * Includes the sidebar template for a theme or if a name is specified then a

 * specialised sidebar will be included. If the theme contains no sidebar.php

 * file then the sidebar from the default theme will be included.

 *

 * For the parameter, if the file is called "sidebar-special.php" then specify

 * "special".

 *

 * @uses locate_template()

 * @since 1.5.0

 * @uses do_action() Calls 'get_sidebar' action.

 *

 * @param string $name The name of the specialised sidebar.

 */

function get_sidebar( $name = null ) {

	do_action( 'get_sidebar', $name );

	$templates = array();

	if ( isset($name) )

		$templates[] = "sidebar-{$name}.php";

	$templates[] = "sidebar.php";

	if ('' == locate_template($templates, true))

		load_template( get_theme_root() . '/default/sidebar.php');

}

/**

 * Display search form.

 *

 * Will first attempt to locate the searchform.php file in either the child or

 * the parent, then load it. If it doesn't exist, then the default search form

 * will be displayed. The default search form is HTML, which will be displayed.

 * There is a filter applied to the search form HTML in order to edit or replace

 * it. The filter is 'get_search_form'.

 *

 * This function is primarily used by themes which want to hardcode the search

 * form into the sidebar and also by the search widget in WordPress.

 *

 * There is also an action that is called whenever the function is run called,

 * 'get_search_form'. This can be useful for outputting JavaScript that the

 * search relies on or various formatting that applies to the beginning of the

 * search. To give a few examples of what it can be used for.

 *

 * @since 2.7.0

 */

function get_search_form() {

	do_action( 'get_search_form' );

	$search_form_template = locate_template(array('searchform.php'));

	if ( '' != $search_form_template ) {

		require($search_form_template);

		return;

	}

	$form = '<form role="search" method="get" id="searchform" action="' . get_option('home') . '/" >

	<div><label class="screen-reader-text" for="s">' . __('Search for:') . '</label>

	<input type="text" value="' . esc_attr(apply_filters('the_search_query', get_search_query())) . '" name="s" id="s" />

	<input type="submit" id="searchsubmit" value="'. esc_attr__('Search') .'" />

	</div>

	</form>';

	echo apply_filters('get_search_form', $form);

}

/**

 * Display the Log In/Out link.

 *

 * Displays a link, which allows the user to navigate to the Log In page to log in

 * or log out depending on whether or not they are currently logged in.

 *

 * @since 1.5.0

 * @uses apply_filters() Calls 'loginout' hook on HTML link content.

 *

 * @param string $redirect Optional path to redirect to on login/logout.

 */

function wp_loginout($redirect = '') {

	if ( ! is_user_logged_in() )

		$link = '<a href="' . esc_url( wp_login_url($redirect) ) . '">' . __('Log in') . '</a>';

	else

		$link = '<a href="' . esc_url( wp_logout_url($redirect) ) . '">' . __('Log out') . '</a>';

	echo apply_filters('loginout', $link);

}

/**

 * Returns the Log Out URL.

 *

 * Returns the URL that allows the user to log out of the site

 *

 * @since 2.7

 * @uses wp_nonce_url() To protect against CSRF

 * @uses site_url() To generate the log in URL

 * @uses apply_filters() calls 'logout_url' hook on final logout url

 *

 * @param string $redirect Path to redirect to on logout.

 */

function wp_logout_url($redirect = '') {

	$args = array( 'action' => 'logout' );

	if ( !empty($redirect) ) {

		$args['redirect_to'] = urlencode( $redirect );

	}

	$logout_url = add_query_arg($args, site_url('wp-login.php', 'login'));

	$logout_url = wp_nonce_url( $logout_url, 'log-out' );

	return apply_filters('logout_url', $logout_url, $redirect);

}

/**

 * Returns the Log In URL.

 *

 * Returns the URL that allows the user to log in to the site

 *

 * @since 2.7

 * @uses site_url() To generate the log in URL

 * @uses apply_filters() calls 'login_url' hook on final login url

 *

 * @param string $redirect Path to redirect to on login.

 */

function wp_login_url($redirect = '') {

	$login_url = site_url('wp-login.php', 'login');

	if ( !empty($redirect) ) {

		$login_url = add_query_arg('redirect_to', urlencode($redirect), $login_url);

	}

	return apply_filters('login_url', $login_url, $redirect);

}

/**

 * Returns the Lost Password URL.

 *

 * Returns the URL that allows the user to retrieve the lost password

 *

 * @since 2.8.0

 * @uses site_url() To generate the lost password URL

 * @uses apply_filters() calls 'lostpassword_url' hook on the lostpassword url

 *

 * @param string $redirect Path to redirect to on login.

 */

function wp_lostpassword_url($redirect = '') {

	$args = array( 'action' => 'lostpassword' );

	if ( !empty($redirect) ) {

		$args['redirect_to'] = $redirect;

	}

	$lostpassword_url = add_query_arg($args, site_url('wp-login.php', 'login'));

	return apply_filters('lostpassword_url', $lostpassword_url, $redirect);

}

/**

 * Display the Registration or Admin link.

 *

 * Display a link which allows the user to navigate to the registration page if

 * not logged in and registration is enabled or to the dashboard if logged in.

 *

 * @since 1.5.0

 * @uses apply_filters() Calls 'register' hook on register / admin link content.

 *

 * @param string $before Text to output before the link (defaults to <li>).

 * @param string $after Text to output after the link (defaults to </li>).

 */

function wp_register( $before = '<li>', $after = '</li>' ) {

	if ( ! is_user_logged_in() ) {

		if ( get_option('users_can_register') )

			$link = $before . '<a href="' . site_url('wp-login.php?action=register', 'login') . '">' . __('Register') . '</a>' . $after;

		else

			$link = '';

	} else {

		$link = $before . '<a href="' . admin_url() . '">' . __('Site Admin') . '</a>' . $after;

	}

	echo apply_filters('register', $link);

}

/**

 * Theme container function for the 'wp_meta' action.

 *

 * The 'wp_meta' action can have several purposes, depending on how you use it,

 * but one purpose might have been to allow for theme switching.

 *

 * @since 1.5.0

 * @link http://trac.wordpress.org/ticket/1458 Explanation of 'wp_meta' action.

 * @uses do_action() Calls 'wp_meta' hook.

 */

function wp_meta() {

	do_action('wp_meta');

}

/**

 * Display information about the blog.

 *

 * @see get_bloginfo() For possible values for the parameter.

 * @since 0.71

 *

 * @param string $show What to display.

 */

function bloginfo($show='') {

	echo get_bloginfo($show, 'display');

}

/**

 * Retrieve information about the blog.

 *

 * Some show parameter values are deprecated and will be removed in future

 * versions. Care should be taken to check the function contents and know what

 * the deprecated blog info options are. Options without "// DEPRECATED" are

 * the preferred and recommended ways to get the information.

 *

 * The possible values for the 'show' parameter are listed below.

 * <ol>

 * <li><strong>url<strong> - Blog URI to homepage.</li>

 * <li><strong>wpurl</strong> - Blog URI path to WordPress.</li>

 * <li><strong>description</strong> - Secondary title</li>

 * </ol>

 *

 * The feed URL options can be retrieved from 'rdf_url' (RSS 0.91),

 * 'rss_url' (RSS 1.0), 'rss2_url' (RSS 2.0), or 'atom_url' (Atom feed). The

 * comment feeds can be retrieved from the 'comments_atom_url' (Atom comment

 * feed) or 'comments_rss2_url' (RSS 2.0 comment feed).

 *

 * There are many other options and you should check the function contents:

 * {@source 32 37}

 *

 * @since 0.71

 *

 * @param string $show Blog info to retrieve.

 * @param string $filter How to filter what is retrieved.

 * @return string Mostly string values, might be empty.

 */

function get_bloginfo($show = '', $filter = 'raw') {

	switch($show) {

		case 'url' :

		case 'home' : // DEPRECATED

		case 'siteurl' : // DEPRECATED

			$output = get_option('home');

			break;

		case 'wpurl' :

			$output = get_option('siteurl');

			break;

		case 'description':

			$output = get_option('blogdescription');

			break;

		case 'rdf_url':

			$output = get_feed_link('rdf');

			break;

		case 'rss_url':

			$output = get_feed_link('rss');

			break;

		case 'rss2_url':

			$output = get_feed_link('rss2');

			break;

		case 'atom_url':

			$output = get_feed_link('atom');

			break;

		case 'comments_atom_url':

			$output = get_feed_link('comments_atom');

			break;

		case 'comments_rss2_url':

			$output = get_feed_link('comments_rss2');

			break;

		case 'pingback_url':

			$output = get_option('siteurl') .'/xmlrpc.php';

			break;

		case 'stylesheet_url':

			$output = get_stylesheet_uri();

			break;

		case 'stylesheet_directory':

			$output = get_stylesheet_directory_uri();

			break;

		case 'template_directory':

		case 'template_url':

			$output = get_template_directory_uri();

			break;

		case 'admin_email':

			$output = get_option('admin_email');

			break;

		case 'charset':

			$output = get_option('blog_charset');

			if ('' == $output) $output = 'UTF-8';

			break;

		case 'html_type' :

			$output = get_option('html_type');

			break;

		case 'version':

			global $wp_version;

			$output = $wp_version;

			break;

		case 'language':

			$output = get_locale();

			$output = str_replace('_', '-', $output);

			break;

		case 'text_direction':

			global $wp_locale;

			$output = $wp_locale->text_direction;

			break;

		case 'name':

		default:

			$output = get_option('blogname');

			break;

	}

	$url = true;

	if (strpos($show, 'url') === false &&

		strpos($show, 'directory') === false &&

		strpos($show, 'home') === false)

		$url = false;

	if ( 'display' == $filter ) {

		if ( $url )

			$output = apply_filters('bloginfo_url', $output, $show);

		else

			$output = apply_filters('bloginfo', $output, $show);

	}

	return $output;

}

/**

 * Display or retrieve page title for all areas of blog.

 *

 * By default, the page title will display the separator before the page title,

 * so that the blog title will be before the page title. This is not good for

 * title display, since the blog title shows up on most tabs and not what is

 * important, which is the page that the user is looking at.

 *

 * There are also SEO benefits to having the blog title after or to the 'right'

 * or the page title. However, it is mostly common sense to have the blog title

 * to the right with most browsers supporting tabs. You can achieve this by

 * using the seplocation parameter and setting the value to 'right'. This change

 * was introduced around 2.5.0, in case backwards compatibility of themes is

 * important.

 *

 * @since 1.0.0

 *

 * @param string $sep Optional, default is '»'. How to separate the various items within the page title.

 * @param bool $display Optional, default is true. Whether to display or retrieve title.

 * @param string $seplocation Optional. Direction to display title, 'right'.

 * @return string|null String on retrieve, null when displaying.

 */

function wp_title($sep = '»', $display = true, $seplocation = '') {

	global $wpdb, $wp_locale, $wp_query;

	$cat = get_query_var('cat');

	$tag = get_query_var('tag_id');

	$category_name = get_query_var('category_name');

	$author = get_query_var('author');

	$author_name = get_query_var('author_name');

	$m = get_query_var('m');

	$year = get_query_var('year');

	$monthnum = get_query_var('monthnum');

	$day = get_query_var('day');

	$search = get_query_var('s');

	$title = '';

	$t_sep = '%WP_TITILE_SEP%'; // Temporary separator, for accurate flipping, if necessary

	// If there's a category

	if ( !empty($cat) ) {

			// category exclusion

			if ( !stristr($cat,'-') )

				$title = apply_filters('single_cat_title', get_the_category_by_ID($cat));

	} elseif ( !empty($category_name) ) {

		if ( stristr($category_name,'/') ) {

				$category_name = explode('/',$category_name);

				if ( $category_name[count($category_name)-1] )

					$category_name = $category_name[count($category_name)-1]; // no trailing slash

				else

					$category_name = $category_name[count($category_name)-2]; // there was a trailling slash