!22 fix(display): vnc crashed

From: @tanyulong2021
Reviewed-by: @dou33
Signed-off-by: @dou33

0007-fix-vnc-crashed.patch

@@ -0,0 +1,86 @@
+From 575c32022d326eb391054c0608d5fc82cebb9281 Mon Sep 17 00:00:00 2001
+From: tanyulong <tanyulong@kylinos.cn>
+Date: Fri, 9 Jul 2021 16:55:22 +0800
+Subject: [PATCH] fix vnc crashed
+
+---
+ plugins/system/display/display.cpp | 30 ++++++++++++++++++++++++++++++
+ plugins/system/display/display.h   |  4 +++-
+ 2 files changed, 33 insertions(+), 1 deletion(-)
+
+diff --git a/plugins/system/display/display.cpp b/plugins/system/display/display.cpp
+index de931b6..383c564 100755
+--- a/plugins/system/display/display.cpp
++++ b/plugins/system/display/display.cpp
+@@ -25,6 +25,8 @@
+ #include <KF5/KScreen/kscreen/getconfigoperation.h>
+ #include <KF5/KScreen/kscreen/output.h>
+ #include <QDebug>
++#include <QDBusInterface>
++#include <QDBusConnection>
+ 
+ DisplaySet::DisplaySet(){
+     pluginWidget = new Widget;
+@@ -43,6 +45,15 @@ DisplaySet::~DisplaySet(){
+ }
+ 
+ QWidget *DisplaySet::get_plugin_ui(){
++   if (mFirstLoad) {
++        requestBackend();
++        mFirstLoad = false;
++        pluginWidget = new Widget;
++        QObject::connect(new KScreen::GetConfigOperation(), &KScreen::GetConfigOperation::finished,
++                         [&](KScreen::ConfigOperation *op) {
++            pluginWidget->setConfig(qobject_cast<KScreen::GetConfigOperation*>(op)->config());
++        });
++    }
+     return pluginWidget;
+ }
+ 
+@@ -63,3 +74,22 @@ const QString DisplaySet::name() const {
+     return QStringLiteral("display");
+ }
+ 
++void DisplaySet::requestBackend() {
++
++    QDBusInterface screenIft("org.kde.KScreen",
++                             "/",
++                             "org.kde.KScreen",
++                             QDBusConnection::sessionBus());
++    if (!screenIft.isValid()) {
++        QProcess process;
++        process.start("uname -m");
++        process.waitForFinished();
++        QString output = process.readAll();
++        output = output.simplified();
++
++        QString command = "/usr/lib/" + output + "-linux-gnu" +"/libexec/kf5/kscreen_backend_launcher";
++        QProcess::startDetached(command);
++    }
++}
++
++
+diff --git a/plugins/system/display/display.h b/plugins/system/display/display.h
+index e4f4fbd..b30e9bb 100755
+--- a/plugins/system/display/display.h
++++ b/plugins/system/display/display.h
+@@ -47,13 +47,15 @@ public:
+     void plugin_delay_control() Q_DECL_OVERRIDE;
+     const QString name() const  Q_DECL_OVERRIDE;
+ 
+-
++private:
++    void requestBackend();
+ private:
+     Ui::DisplayWindow * ui;
+     QString pluginName;
+     int pluginType;
+     Widget * pluginWidget;
+ 
++    bool mFirstLoad;
+ };
+ 
+ #endif // DISPLAYSET_H
+-- 
+2.23.0
+

ukui-control-center.spec

@@ -1,7 +1,7 @@
 %define debug_package %{nil}
 Name:           ukui-control-center
 Version:        3.0.1
-Release:        6
+Release:        7
 Summary:        utilities to configure the UKUI desktop
 License:        GPL-2+
 URL:            http://www.ukui.org
@@ -76,6 +76,7 @@ patch3: 0004-fix-effects-mode-not-available-bug.patch
 patch4: 0005-fix-blueman-tray-and-groupadd-autologin.patch
 patch5: 0001-add-judgment-when-Bluetooth-does-not-exist.patch
 patch6:	0006-fix-Group-members-are-not-displayed.patch
+patch7: 0007-fix-vnc-crashed.patch
 
 Recommends: qt5-qtquickcontrols
 
@@ -103,6 +104,7 @@ Suggests: ukui-settings-daemon
 %patch4 -p1
 %patch5 -p1
 %patch6 -p1
+%patch7 -p1
 
 %build
 qmake-qt5
@@ -146,6 +148,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_datadir}/polkit-1/actions/org.ukui.groupmanager.policy
 
 %changelog
+* Fri Jul 09 2021 tanyulong<tanyulong@kylinos.cn> - 3.0.1-7
+- fix vnc crashed
+
 * Thu Jul 08 2021 tanyulong<tanyulong@kylinos.cn> - 3.0.1-6
 - fix-Group-members-are-not-displayed