Apply metacity theme with cinnamon

app/src/desktopthemes/cinnamontheme.cpp

@@ -30,6 +30,11 @@ bool CinnamonTheme::applyAsGtk3Theme() const
     return setConfig("org.cinnamon.desktop.interface", "gtk-theme", themeName_);
 }
 
+bool CinnamonTheme::applyAsMetacityTheme() const
+{
+    return setConfig("org.cinnamon.desktop.wm.preferences", "name", themeName_);
+}
+
 bool CinnamonTheme::applyAsCinnamonTheme() const
 {
     return setConfig("org.cinnamon.theme", "name", themeName_);

app/src/desktopthemes/cinnamontheme.h

@@ -13,6 +13,7 @@ public:
     bool applyAsIcon() const;
     bool applyAsCursor() const;
     bool applyAsGtk3Theme() const;
+    bool applyAsMetacityTheme() const;
     bool applyAsCinnamonTheme() const;
 
 private:

app/src/handlers/desktopthemehandler.cpp

@@ -82,6 +82,7 @@ bool DesktopThemeHandler::isApplicableType(const QString &installType) const
                         << "icons"
                         << "cursors"
                         << "gtk3_themes"
+                        << "metacity_themes"
                         << "cinnamon_themes";
     }
     else if (desktop == "mate") {
@@ -169,6 +170,9 @@ bool DesktopThemeHandler::applyTheme(const QString &path, const QString &install
             else if (installType == "gtk3_themes") {
                 return cinnamonTheme.applyAsGtk3Theme();
             }
+            else if (installType == "metacity_themes") {
+                return cinnamonTheme.applyAsMetacityTheme();
+            }
             else if (installType == "cinnamon_themes") {
                 return cinnamonTheme.applyAsCinnamonTheme();
             }