track KWin Colors Script presence in system

app/settings/universalsettings.cpp

@@ -32,10 +32,13 @@
 
 // KDE
 #include <KActivities/Consumer>
+#include <KDirWatch>
 
 #define KWINMETAFORWARDTOLATTESTRING "org.kde.lattedock,/Latte,org.kde.LatteDock,activateLauncherMenu"
 #define KWINMETAFORWARDTOPLASMASTRING "org.kde.plasmashell,/PlasmaShell,org.kde.PlasmaShell,activateLauncherMenu"
 
+#define KWINCOLORSSCRIPT "kwin/scripts/lattewindowcolors"
+
 namespace Latte {
 
 UniversalSettings::UniversalSettings(KSharedConfig::Ptr config, QObject *parent)
@@ -83,6 +86,17 @@ void UniversalSettings::load()
     //! load configuration
     loadConfig();
 
+    //! Track KWin Colors Script Presence
+    updateColorsScriptIsPresent();
+
+    QStringList colorsScriptPaths = Layouts::Importer::standardPathsFor(KWINCOLORSSCRIPT);
+    for(auto path: colorsScriptPaths) {
+        KDirWatch::self()->addDir(path);
+    }
+
+    connect(KDirWatch::self(), &KDirWatch::dirty, this, &UniversalSettings::colorsScriptChanged);
+    connect(KDirWatch::self(), &KDirWatch::created, this, &UniversalSettings::colorsScriptChanged);
+
     //! this is needed to inform globalshortcuts to update its modifiers tracking
     emit metaPressAndHoldEnabledChanged();
 }
@@ -285,6 +299,35 @@ void UniversalSettings::setCanDisableBorders(bool enable)
     emit canDisableBordersChanged();
 }
 
+bool UniversalSettings::colorsScriptIsPresent() const
+{
+    return m_colorsScriptIsPresent;
+}
+
+void UniversalSettings::setColorsScriptIsPresent(bool present)
+{
+    if (m_colorsScriptIsPresent == present) {
+        return;
+    }
+
+    m_colorsScriptIsPresent = present;
+    emit colorsScriptIsPresentChanged();
+}
+
+void UniversalSettings::updateColorsScriptIsPresent()
+{
+    setColorsScriptIsPresent(!Layouts::Importer::standardPath(KWINCOLORSSCRIPT).isEmpty());
+}
+
+void UniversalSettings::colorsScriptChanged(const QString &file)
+{
+    if (!file.endsWith(KWINCOLORSSCRIPT)) {
+        return;
+    }
+
+    updateColorsScriptIsPresent();
+}
+
 bool UniversalSettings::metaForwardedToLatte() const
 {
     return kwin_metaForwardedToLatte();

app/settings/universalsettings.h

@@ -54,6 +54,7 @@ class UniversalSettings : public QObject
 {
     Q_OBJECT
     Q_PROPERTY(bool autostart READ autostart WRITE setAutostart NOTIFY autostartChanged)
+    Q_PROPERTY(bool colorsScriptIsPresent READ colorsScriptIsPresent NOTIFY colorsScriptIsPresentChanged)
     Q_PROPERTY(bool showInfoWindow READ showInfoWindow WRITE setShowInfoWindow NOTIFY showInfoWindowChanged)
 
     Q_PROPERTY(QString currentLayoutName READ currentLayoutName WRITE setCurrentLayoutName NOTIFY currentLayoutNameChanged)
@@ -76,6 +77,8 @@ public:
     bool canDisableBorders() const;
     void setCanDisableBorders(bool enable);
 
+    bool colorsScriptIsPresent() const;
+
     bool metaForwardedToLatte() const;
     void forwardMetaToLatte(bool forward);
 
@@ -127,6 +130,7 @@ public slots:
 signals:
     void autostartChanged();
     void canDisableBordersChanged();
+    void colorsScriptIsPresentChanged();
     void currentLayoutNameChanged();
     void downloadWindowSizeChanged();
     void lastNonAssignedLayoutNameChanged();
@@ -147,17 +151,23 @@ private slots:
     void saveConfig();
     void saveScalesConfig();
 
+    void updateColorsScriptIsPresent();
+    void colorsScriptChanged(const QString &file);
+
 private:
     void cleanupSettings();
 
     bool kwin_metaForwardedToLatte() const;
     void kwin_forwardMetaToLatte(bool forward);
 
+    void setColorsScriptIsPresent(bool present);
+
     Types::LayoutsMemoryUsage layoutsMemoryUsage() const;
     void setLayoutsMemoryUsage(Types::LayoutsMemoryUsage layoutsMemoryUsage);
 
 private:
     bool m_canDisableBorders{false};
+    bool m_colorsScriptIsPresent{false};
     bool m_metaPressAndHoldEnabled{true};
     bool m_showInfoWindow{true};