kde-frameworks/qqc2-desktop-style: Move dbus connection in singleton

"Substantially improves the speed and responsiveness of large and complicated
QML-based apps."

Upstream commit f8e56a22721057107bccdf319da36ff82ca2a804

Package-Manager: Portage-3.0.8, Repoman-3.0.1
Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org>

kde-frameworks/qqc2-desktop-style/files/qqc2-desktop-style-5.74.0-move-dbus-connection-in-singleton.patch

@@ -0,0 +1,67 @@
+From f8e56a22721057107bccdf319da36ff82ca2a804 Mon Sep 17 00:00:00 2001
+From: Marco Martin <notmart@gmail.com>
+Date: Mon, 7 Sep 2020 09:52:57 +0000
+Subject: [PATCH] move the dbus connection in the singleton
+
+connecting to dbus is expensive, do it only once in the singleton
+the theme instance will only connecto to the signal forwarded by
+the singleton
+---
+ .../plasmadesktoptheme.cpp                    | 20 +++++++++++--------
+ 1 file changed, 12 insertions(+), 8 deletions(-)
+
+diff --git a/kirigami-plasmadesktop-integration/plasmadesktoptheme.cpp b/kirigami-plasmadesktop-integration/plasmadesktoptheme.cpp
+index babb433..ff046eb 100644
+--- a/kirigami-plasmadesktop-integration/plasmadesktoptheme.cpp
++++ b/kirigami-plasmadesktop-integration/plasmadesktoptheme.cpp
+@@ -45,6 +45,14 @@ public:
+     {
+         connect(qGuiApp, &QGuiApplication::paletteChanged,
+                 this, &StyleSingleton::refresh);
++
++        // Use DBus in order to listen for kdeglobals changes directly, as the
++        // QApplication doesn't expose the font variants we're looking for,
++        // namely smallFont.
++        QDBusConnection::sessionBus().connect( QString(),
++        QStringLiteral( "/KGlobalSettings" ),
++        QStringLiteral( "org.kde.KGlobalSettings" ),
++        QStringLiteral( "notifyChange" ), this, SIGNAL(configurationChanged()));
+     }
+ 
+     void refresh()
+@@ -125,6 +133,7 @@ public:
+     KColorScheme viewScheme;
+ 
+ Q_SIGNALS:
++    void configurationChanged();
+     void paletteChanged();
+ 
+ private:
+@@ -161,14 +170,6 @@ PlasmaDesktopTheme::PlasmaDesktopTheme(QObject *parent)
+                 });
+     }
+ 
+-    // Use DBus in order to listen for kdeglobals changes directly, as the
+-    // QApplication doesn't expose the font variants we're looking for,
+-    // namely smallFont.
+-    QDBusConnection::sessionBus().connect( QString(),
+-        QStringLiteral( "/KGlobalSettings" ),
+-        QStringLiteral( "org.kde.KGlobalSettings" ),
+-        QStringLiteral( "notifyChange" ), this, SLOT(configurationChanged()));
+-
+     //TODO: correct? depends from https://codereview.qt-project.org/206889
+     connect(qGuiApp, &QGuiApplication::fontDatabaseChanged, this, [this]() {setDefaultFont(qApp->font());});
+     configurationChanged();
+@@ -181,6 +182,9 @@ PlasmaDesktopTheme::PlasmaDesktopTheme(QObject *parent)
+     connect(s_style->data(), &StyleSingleton::paletteChanged,
+             this, &PlasmaDesktopTheme::syncColors);
+ 
++    connect(s_style->data(), &StyleSingleton::configurationChanged,
++            this, &PlasmaDesktopTheme::configurationChanged);
++
+     syncColors();
+ }
+ 
+-- 
+GitLab
+

kde-frameworks/qqc2-desktop-style/qqc2-desktop-style-5.74.0-r1.ebuild

@@ -0,0 +1,30 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+ECM_QTHELP="false"
+PVCUT=$(ver_cut 1-2)
+QTMIN=5.14.2
+inherit ecm kde.org
+
+DESCRIPTION="Style for QtQuickControls 2 that uses QWidget's QStyle for painting"
+
+LICENSE="|| ( GPL-2+ LGPL-3+ )"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc64 ~x86"
+IUSE=""
+
+DEPEND="
+	>=dev-qt/qtdeclarative-${QTMIN}:5=
+	>=dev-qt/qtgui-${QTMIN}:5
+	>=dev-qt/qtwidgets-${QTMIN}:5
+	=kde-frameworks/kconfigwidgets-${PVCUT}*:5
+	=kde-frameworks/kiconthemes-${PVCUT}*:5
+	=kde-frameworks/kirigami-${PVCUT}*:5
+"
+RDEPEND="${DEPEND}
+	>=dev-qt/qtgraphicaleffects-${QTMIN}:5
+	>=dev-qt/qtquickcontrols2-${QTMIN}:5
+"
+
+PATCHES=( "${FILESDIR}"/${P}-move-dbus-connection-in-singleton.patch )