[gnome-shell] mpris: Hide unused elements to leave more space for the title

[Marge Bot <marge-bot src gnome org>]

commit c61e1e5c2c6fb86b53c2eb7509d2599b50b083d5
Author: Sebastian Keller <skeller gnome org>
Date:   Thu Feb 4 02:17:08 2021 +0100

    mpris: Hide unused elements to leave more space for the title
    
    The Message class this is derived from unconditionally adds a close
    button with 0 opacity that only gets shown on hover for messages that
    can actually be closed. The MPRIS MediaMessage however can never be
    closed and having a close button can cause the title to be cut short
    unexpectedly.
    
    Similarly the secondary text which other notifications use to display
    the notification time is always left empty here as well.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/-/issues/3664
    
    Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1632>

 js/ui/mpris.js | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/js/ui/mpris.js b/js/ui/mpris.js
index 4e541d8a03..b7cc8ea190 100644
--- a/js/ui/mpris.js
+++ b/js/ui/mpris.js
@@ -28,6 +28,10 @@ class MediaMessage extends MessageList.Message {
         this._icon = new St.Icon({ style_class: 'media-message-cover-icon' });
         this.setIcon(this._icon);
 
+        // reclaim space used by unused elements
+        this._secondaryBin.hide();
+        this._closeButton.hide();
+
         this._prevButton = this.addMediaControl('media-skip-backward-symbolic',
             () => {
                 this._player.previous();