From 38b1f84f633326d2b15b28b1eb74020ea6bc16bf Mon Sep 17 00:00:00 2001
From: MickeyKay <mickeyskay@gmail.com>
Date: Wed, 21 Jan 2015 10:24:01 -0800
Subject: [PATCH] Add favicon theme option.

---
 includes/admin/admin.php               |  9 ++++++++-
 includes/functions/theme-functions.php | 21 ++++++++++++++++++---
 2 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/includes/admin/admin.php b/includes/admin/admin.php
index b6b7d14..0dee9e2 100644
--- a/includes/admin/admin.php
+++ b/includes/admin/admin.php
@@ -39,6 +39,7 @@ function trestle_custom_defaults( $defaults ) {
 		'trestle_layout'                => 'solid',
 		'trestle_logo_url'              => '',
 		'trestle_logo_url_mobile'       => '',
+		'trestle_favicon_url'           => '',
 		'trestle_nav_primary_location'  => 'full',
 		'trestle_auto_nav'              => 0,
 		'trestle_auto_nav_depth'        => 0,
@@ -123,6 +124,7 @@ function trestle_register_social_sanitization_filters() {
 		array(
 			'trestle_logo_url',
 			'trestle_logo_url_mobile',
+			'trestle_favicon_url',
 			'trestle_home_link_text',
 			'trestle_nav_button_text',
 			'trestle_custom_nav_extras_text',
@@ -167,7 +169,7 @@ function trestle_settings_box() {
 		<input type="radio" name="<?php echo GENESIS_SETTINGS_FIELD; ?>[trestle_layout]" value="bubble" <?php checked( esc_attr( genesis_get_option( 'trestle_layout' ) ), 'bubble' ); ?> />
 	</p>
 
-	<h4><?php _e( 'Header', 'trestle' ) ?></h4>
+	<h4><?php _e( 'Logos & Favicon', 'trestle' ) ?></h4>
 	<p>
 		<label for="<?php echo GENESIS_SETTINGS_FIELD; ?>[trestle_logo_url]"><?php _e( 'Logo URL', 'trestle' ); ?></label><br />
 		<input class="widefat" type="text" id="<?php echo GENESIS_SETTINGS_FIELD; ?>[trestle_logo_url]" name="<?php echo GENESIS_SETTINGS_FIELD; ?>[trestle_logo_url]" value="<?php echo esc_attr( genesis_get_option( 'trestle_logo_url' ) ); ?>" />
@@ -176,6 +178,11 @@ function trestle_settings_box() {
 		<label for="<?php echo GENESIS_SETTINGS_FIELD; ?>[trestle_logo_url_mobile]"><?php _e( 'Mobile Logo URL', 'trestle' ); ?></label><br />
 		<input class="widefat" type="text" id="<?php echo GENESIS_SETTINGS_FIELD; ?>[trestle_logo_url_mobile]" name="<?php echo GENESIS_SETTINGS_FIELD; ?>[trestle_logo_url_mobile]" value="<?php echo esc_attr( genesis_get_option( 'trestle_logo_url_mobile' ) ); ?>" />
 	</p>
+	<p>
+		<label for="<?php echo GENESIS_SETTINGS_FIELD; ?>[trestle_favicon_url]"><?php _e( 'Favicon URL', 'trestle' ); ?></label><br />
+		<input class="widefat" type="text" id="<?php echo GENESIS_SETTINGS_FIELD; ?>[trestle_favicon_url]" name="<?php echo GENESIS_SETTINGS_FIELD; ?>[trestle_favicon_url]" value="<?php echo esc_attr( genesis_get_option( 'trestle_favicon_url' ) ); ?>" />
+		<span class="description"><?php _e( 'Defaults to <i>/wp-content/themes/trestle/images/favicon.ico</i> if not specified.', 'trestle' ); ?></span>
+	</p>
 	
 	<h4><?php _e( 'Primary Navigation', 'trestle' ) ?></h4>
 	<p>
diff --git a/includes/functions/theme-functions.php b/includes/functions/theme-functions.php
index ea71f76..5f4ddfd 100644
--- a/includes/functions/theme-functions.php
+++ b/includes/functions/theme-functions.php
@@ -10,7 +10,7 @@
  */
 
 /*===========================================
- * Head Styles & Scripts
+ * Header
 ===========================================*/
 
 add_action( 'wp_enqueue_scripts', 'trestle_header_actions' );
@@ -50,6 +50,20 @@ function trestle_header_actions() {
 
 }
 
+add_filter( 'genesis_pre_load_favicon', 'trestle_do_custom_favicon' );
+/**
+ * Output custom favicon if specified in the theme options.
+ *
+ * @since   1.0.0
+ *
+ * @param   string  $favicon_url  Default favicon URL.
+ *
+ * @return  string  Custom favicon URL (if specified), or the default URL.
+ */
+function trestle_do_custom_favicon( $favicon_url ) {
+	return genesis_get_option( 'trestle_favicon_url' ) ? genesis_get_option( 'trestle_favicon_url' ) : $favicon_url;
+}
+
 /*===========================================
  * Body Classes
 ===========================================*/
@@ -420,8 +434,9 @@ function trestle_read_more_link( $default_text ) {
 	// Get Trestle custom "read more" link text
 	$custom_text = esc_attr( genesis_get_option( 'trestle_read_more_text' ) );
 
-	if ( $custom_text )	
+	if ( $custom_text )	{
 		return '&hellip;&nbsp;<a class="more-link" title="' . $custom_text . '" href="' . get_permalink() . '">' . $custom_text . '</a>';
-	else
+	} else {
 		return $default_text;
+	}
 }