From 455ceca14bf7a385abb819d5827a1b61f4e48913 Mon Sep 17 00:00:00 2001
From: Fushan Wen <qydwhotmail@gmail.com>
Date: Thu, 23 Mar 2023 00:12:50 +0800
Subject: [PATCH] settings: provide accent-color settings

Proposal: https://github.com/flatpak/xdg-desktop-portal/pull/815
GNOME implementation: https://gitlab.gnome.org/GNOME/xdg-desktop-portal-gnome/-/merge_requests/82
---
 src/settings.cpp | 24 ++++++++++++++++++++----
 src/settings.h   |  7 +++++++
 2 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/src/settings.cpp b/src/settings.cpp
index d18755fb..79a698dc 100644
--- a/src/settings.cpp
+++ b/src/settings.cpp
@@ -93,6 +93,7 @@ void SettingsPortal::ReadAll(const QStringList &groups)
     if (groupMatches(QStringLiteral("org.freedesktop.appearance"), groups)) {
         QVariantMap appearanceSettings;
         appearanceSettings.insert(QStringLiteral("color-scheme"), readFdoColorScheme().variant());
+        appearanceSettings.insert(QStringLiteral("accent-color"), readAccentColor().variant());
 
         result.insert(QStringLiteral("org.freedesktop.appearance"), appearanceSettings);
     }
@@ -148,10 +149,16 @@ void SettingsPortal::Read(const QString &group, const QString &key)
     QDBusMessage reply;
     QDBusMessage message = q_ptr->message();
 
-    if (group == QLatin1String("org.freedesktop.appearance") && key == QLatin1String("color-scheme")) {
-        reply = message.createReply(QVariant::fromValue(readFdoColorScheme()));
-        QDBusConnection::sessionBus().send(reply);
-        return;
+    if (group == QLatin1String("org.freedesktop.appearance")) {
+        if (key == QLatin1String("color-scheme")) {
+            reply = message.createReply(QVariant::fromValue(readFdoColorScheme()));
+            QDBusConnection::sessionBus().send(reply);
+            return;
+        } else if (key == QLatin1String("accent-color")) {
+            reply = message.createReply(QVariant::fromValue(readAccentColor()));
+            QDBusConnection::sessionBus().send(reply);
+            return;
+        }
     }
     // All other namespaces start with this prefix
     else if (!group.startsWith(QStringLiteral("org.kde.kdeglobals"))) {
@@ -192,6 +199,9 @@ void SettingsPortal::globalSettingChanged(int type, int arg)
                               readProperty(QStringLiteral("org.kde.kdeglobals.General"), QStringLiteral("ColorScheme")));
 
         Q_EMIT SettingChanged(QStringLiteral("org.freedesktop.appearance"), QStringLiteral("color-scheme"), readFdoColorScheme());
+
+        // https://github.com/flatpak/xdg-desktop-portal/pull/815
+        Q_EMIT SettingChanged(QStringLiteral("org.freedesktop.appearance"), QStringLiteral("accent-color"), readAccentColor());
         break;
     case FontChanged:
         fontChanged();
@@ -270,3 +280,9 @@ QDBusVariant SettingsPortal::readFdoColorScheme()
 
     return QDBusVariant(result);
 }
+
+QDBusVariant SettingsPortal::readAccentColor() const
+{
+    const QColor accentColor = qGuiApp->palette().highlight().color();
+    return QDBusVariant(QVariantList{accentColor.redF(), accentColor.greenF(), accentColor.blueF()});
+}
diff --git a/src/settings.h b/src/settings.h
index 1ec0f77b..e6642315 100644
--- a/src/settings.h
+++ b/src/settings.h
@@ -74,6 +74,13 @@ private Q_SLOTS:
 
 private:
     QDBusVariant readProperty(const QString &group, const QString &key);
+
+    /**
+     * Returns a list that contains redF, blueF and greenF and represents
+     * the current accent color.
+     * Format: (ddd)
+     */
+    QDBusVariant readAccentColor() const;
     QDBusVariant readFdoColorScheme();
 
     KSharedConfigPtr m_kdeglobals;