From ab8dcac01adc49d9cc96ae31875695ed45e7cbf6 Mon Sep 17 00:00:00 2001
From: Christian Chung <christian.m.chung@gmail.com>
Date: Tue, 30 Oct 2018 13:46:14 -0400
Subject: [PATCH 1/4] Add liveblog_amp_facebook_share_app_id filter

---
 classes/class-wpcom-liveblog-amp.php | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/classes/class-wpcom-liveblog-amp.php b/classes/class-wpcom-liveblog-amp.php
index 83dc004df..f285b5ec5 100644
--- a/classes/class-wpcom-liveblog-amp.php
+++ b/classes/class-wpcom-liveblog-amp.php
@@ -88,7 +88,14 @@ public static function add_custom_query_vars( $query_vars ) {
 	public static function add_social_share_options() {
 		$social_array = array( 'twitter', 'pinterest', 'email', 'gplus' );
 
-		if ( defined( 'LIVEBLOG_AMP_FACEBOOK_SHARE' ) ) {
+		/**
+		 * Filter Liveblog AMP Facebook share app id
+		 *
+		 * @param string $app_id The Facebook application id to enable sharing to Facebook.
+		 */
+		$facebook_app_id = apply_filters( 'liveblog_amp_facebook_share_app_id', '' );
+
+		if ( ! empty( $facebook_app_id ) ) {
 			$social_array[] = 'facebook';
 		}
 

From 0a5c7ce334208614abb199d88b9388dc82bd1b7b Mon Sep 17 00:00:00 2001
From: Christian Chung <christian.m.chung@gmail.com>
Date: Tue, 30 Oct 2018 13:51:05 -0400
Subject: [PATCH 2/4] Add support for outputting Facebook app id in entry
 template

---
 templates/amp/entry.php | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/templates/amp/entry.php b/templates/amp/entry.php
index 073a43922..a151470c7 100644
--- a/templates/amp/entry.php
+++ b/templates/amp/entry.php
@@ -7,6 +7,9 @@
 	$share_link     = $this->get( 'share_link' );
 	$update_time    = $this->get( 'update_time' );
 	$share_link_amp = $this->get( 'share_link_amp' );
+
+	/* This filter is defined in class-wpcom-liveblog-amp.php */
+	$facebook_app_id = apply_filters( 'liveblog_amp_facebook_share_app_id', '' );
 ?>
 
 <div class="liveblog-entry" id="post<?php echo esc_attr( $update_time ); ?>"
@@ -64,7 +67,11 @@
 				<amp-social-share type="<?php echo esc_attr( $platform ); ?>"
 					width="45"
 					height="33"
-					data-param-url="<?php echo esc_url( $share_link_amp ); ?>"></amp-social-share>
+					data-param-url="<?php echo esc_url( $share_link_amp ); ?>"
+					<?php if ( 'facebook' === $platform ) : ?>
+						data-param-app_id="<?php echo esc_attr( $facebook_app_id ); ?>"
+					<?php endif; ?>
+				></amp-social-share>
 				<?php endforeach; ?>
 			<?php endif; ?>
 		</div>

From cd1fd6074ca838dba3bdb19ba147dd5f72d0fbf2 Mon Sep 17 00:00:00 2001
From: Christian Chung <christian.m.chung@gmail.com>
Date: Tue, 30 Oct 2018 14:18:36 -0400
Subject: [PATCH 3/4] Use boolean false as the default facebook share app id

---
 classes/class-wpcom-liveblog-amp.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/classes/class-wpcom-liveblog-amp.php b/classes/class-wpcom-liveblog-amp.php
index f285b5ec5..66114cb6c 100644
--- a/classes/class-wpcom-liveblog-amp.php
+++ b/classes/class-wpcom-liveblog-amp.php
@@ -91,9 +91,9 @@ public static function add_social_share_options() {
 		/**
 		 * Filter Liveblog AMP Facebook share app id
 		 *
-		 * @param string $app_id The Facebook application id to enable sharing to Facebook.
+		 * @param mixed $app_id Facebook app id to enable Facebook sharing, default false.
 		 */
-		$facebook_app_id = apply_filters( 'liveblog_amp_facebook_share_app_id', '' );
+		$facebook_app_id = apply_filters( 'liveblog_amp_facebook_share_app_id', false );
 
 		if ( ! empty( $facebook_app_id ) ) {
 			$social_array[] = 'facebook';

From 1fb26ec490ffbe3fb15237dbf3cceca0675ed09a Mon Sep 17 00:00:00 2001
From: Christian Chung <christian.m.chung@gmail.com>
Date: Tue, 30 Oct 2018 14:19:27 -0400
Subject: [PATCH 4/4] Use boolean false as the default facebook share app id in
 template

---
 templates/amp/entry.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/templates/amp/entry.php b/templates/amp/entry.php
index a151470c7..5db097f2e 100644
--- a/templates/amp/entry.php
+++ b/templates/amp/entry.php
@@ -9,7 +9,7 @@
 	$share_link_amp = $this->get( 'share_link_amp' );
 
 	/* This filter is defined in class-wpcom-liveblog-amp.php */
-	$facebook_app_id = apply_filters( 'liveblog_amp_facebook_share_app_id', '' );
+	$facebook_app_id = apply_filters( 'liveblog_amp_facebook_share_app_id', false );
 ?>
 
 <div class="liveblog-entry" id="post<?php echo esc_attr( $update_time ); ?>"