share: indicate whether article is shared or not using the icon

include/functions.php

@@ -2645,6 +2645,7 @@
 						num_comments,
 						comments,
 						int_id,
+						uuid,
 						hide_images,
 						unread,feed_id,marked,published,link,last_read,orig_feed_id,
 						last_marked, last_published,
@@ -2687,6 +2688,7 @@
 								"tag_cache," .
 								"label_cache," .
 								"link," .
+								"uuid," .
 								"last_read," .
 								"(SELECT hide_images FROM ttrss_feeds WHERE id = feed_id) AS hide_images," .
 								"last_marked, last_published, " .

plugins/share/init.php

@@ -69,7 +69,9 @@ class Share extends Plugin {
 	}
 
 	function hook_article_button($line) {
-		return "<img src=\"plugins/share/share.png\"
+		$img = $line['uuid'] ? "share.png" : "notshared.png";
+
+		return "<img id='SHARE-IMG-".$line['int_id']."' src=\"plugins/share/$img\"
 			class='tagsPic' style=\"cursor : pointer\"
 			onclick=\"shareArticle(".$line['int_id'].")\"
 			title='".__('Share by URL')."'>";

plugins/share/share.js

@@ -37,6 +37,9 @@ function shareArticle(id) {
 
 									new Effect.Highlight(e);
 
+									var img = $("SHARE-IMG-" + id);
+									if (img) img.src = img.src.replace("notshared.png", "share.png");
+
 									notify('');
 
 								} else {
@@ -61,6 +64,10 @@ function shareArticle(id) {
 						parameters: query,
 						onComplete: function(transport) {
 							notify("Article unshared.");
+
+							var img = $("SHARE-IMG-" + id);
+							if (img) img.src = img.src.replace("share.png", "notshared.png");
+
 							dialog.hide();
 						} });
 				}
@@ -70,6 +77,9 @@ function shareArticle(id) {
 
 		dialog.show();
 
+		var img = $("SHARE-IMG-" + id);
+		if (img) img.src = img.src.replace("notshared.png", "share.png");
+
 	} catch (e) {
 		exception_error("shareArticle", e);
 	}