[polari] chatView: Only preview http* URLs

[Florian Müllner <fmuellner src gnome org>]

commit 9cd8e8f707d324c7dc81c15bee98d58aed33433e
Author: Florian Müllner <fmuellner gnome org>
Date:   Sun Dec 15 22:23:14 2019 +0100

    chatView: Only preview http* URLs
    
    We don't know how to preview those, not to mention that there's a fair
    chance that a preview wouldn't be meaningful to begin with (for instance
    irc:// or file://)
    
    https://gitlab.gnome.org/GNOME/polari/merge_requests/139

 src/chatView.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/src/chatView.js b/src/chatView.js
index c008ad3..0b37c79 100644
--- a/src/chatView.js
+++ b/src/chatView.js
@@ -1333,7 +1333,8 @@ var ChatView = GObject.registerClass({
             this._insertWithTags(iter,
                 url.name, tags.concat(this._lookupTag('url'), tag));
 
-            previews.push(new URLPreview({ uri: url.url, visible: true }));
+            if (GLib.uri_parse_scheme(url.url).startsWith('http'))
+                previews.push(new URLPreview({ uri: url.url, visible: true }));
 
             pos = url.pos + url.name.length;
         }