From: Florian Müllner <fmuellner@gnome.org>
Date: Tue, 20 Jun 2017 08:16:05 +0000 (+0200)
Subject: panel: Consider visibility changes for solid style
X-Git-Tag: archive/raspbian/50.5-1+rpi1~1^2~1013^2^2~282
X-Git-Url: https://dgit.raspbian.org/%22http://www.example.com/cgi/%22/%22http:/www.example.com/cgi/%22?a=commitdiff_plain;h=292ac413c80f3fdd907dec14468638647de2466e;p=gnome-shell.git

panel: Consider visibility changes for solid style

We currently assume that window state changes are accompanied by an
allocation change (triggered for example by the minimize animation).
However this misses the case where a window actor is simply hidden
without any transition, as is the case with the 'show-desktop' action
for instance, so start tracking plain visibility changes as well.

https://bugzilla.gnome.org/show_bug.cgi?id=783975
---

diff --git a/js/ui/panel.js b/js/ui/panel.js
index 83fda0ea8..52c89d79c 100644
--- a/js/ui/panel.js
+++ b/js/ui/panel.js
@@ -823,12 +823,17 @@ const Panel = new Lang.Class({
     },
 
     _onWindowActorAdded: function(container, metaWindowActor) {
-        let signalId = metaWindowActor.connect('allocation-changed', Lang.bind(this, this._updateSolidStyle));
-        this._trackedWindows.set(metaWindowActor, signalId);
+        let signalIds = [];
+        ['allocation-changed', 'notify::visible'].forEach(s => {
+            signalIds.push(metaWindowActor.connect(s, Lang.bind(this, this._updateSolidStyle)));
+        });
+        this._trackedWindows.set(metaWindowActor, signalIds);
     },
 
     _onWindowActorRemoved: function(container, metaWindowActor) {
-        metaWindowActor.disconnect(this._trackedWindows.get(metaWindowActor));
+        this._trackedWindows.get(metaWindowActor).forEach(id => {
+            metaWindowActor.disconnect(id);
+        });
         this._trackedWindows.delete(metaWindowActor);
         this._updateSolidStyle();
     },