plugin-volume: Use a specific icon for the panel.

debian/changelog

@@ -5,6 +5,9 @@ lxqt-panel (0.12.0-8ubuntu1) UNRELEASED; urgency=medium
     - Fix wrongly positioned popups (LP: #1527013).
       + fix-wrongly-positioned-popups.patch
       + Upstream commit 7391172.
+    - plugin-volume: Use a specific icon for the panel.
+      + use-specific-panel-icon.patch
+      + Upstream commit eaa65e5.
 
  -- Simon Quigley <tsimonq2@ubuntu.com>  Mon, 05 Feb 2018 19:00:18 -0600
 

debian/patches/series

@@ -4,3 +4,4 @@ plugin-volume-mixer.patch
 
 # Ubuntu-specific patches
 fix-wrongly-positioned-popups.patch
+use-specific-panel-icon.patch

debian/patches/use-specific-panel-icon.patch

@@ -0,0 +1,32 @@
+Description: plugin-volume: Use a specific icon for the panel
+ Some "modern" icon themes have a specific panel icon for volumes.
+ Arc, deepin, Faenza, Faience, Flattr, matefaenza, Menda-Circle, Numix,
+ Numix-Light, Numix-uTouch, Paper, Papirus and it's derivatives are examples
+ of that.
+Author: Luís Pereira <luis.artur.pereira@gmail.com>
+Origin: backport
+Bug: https://github.com/lxde/lxqt-panel/pull/441
+Applied-Upstream: commit:eaa65e5
+Reviewed-by: <name and email of a reviewer, optional>
+Last-Update: 2018-02-05 <YYYY-MM-DD, last update of the meta-information, optional>
+---
+This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
+--- a/plugin-volume/volumepopup.cpp
++++ b/plugin-volume/volumepopup.cpp
+@@ -64,7 +64,7 @@ VolumePopup::VolumePopup(QWidget* parent
+     m_volumeSlider->installEventFilter(this);
+ 
+     m_muteToggleButton = new QPushButton(this);
+-    m_muteToggleButton->setIcon(XdgIcon::fromTheme(QStringList() << "audio-volume-muted"));
++    m_muteToggleButton->setIcon(XdgIcon::fromTheme(QLatin1String("audio-volume-muted-panel")));
+     m_muteToggleButton->setCheckable(true);
+     m_muteToggleButton->setAutoDefault(false);
+ 
+@@ -171,6 +171,7 @@ void VolumePopup::updateStockIcon()
+     else
+         iconName = "audio-volume-high";
+ 
++    iconName.append(QLatin1String("-panel"));
+     m_muteToggleButton->setIcon(XdgIcon::fromTheme(iconName));
+     emit stockIconChanged(iconName);
+ }