From 3b09f3d8839f8ca12de4ca0ac1542bd57c695e90 Mon Sep 17 00:00:00 2001
From: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Date: Sat, 22 May 2021 16:56:19 +0200
Subject: [PATCH] SetBG: add support for Caja

Caja is a fork of Gnome 2 Nautilus and still behaves mostly the same.
Only some gsettings keys differ.
---
 src/SetBG.cc | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 src/SetBG.h  | 11 +++++++++++
 2 files changed, 60 insertions(+)

diff --git a/src/SetBG.cc b/src/SetBG.cc
index 1f08d1c..93ba5fc 100644
--- a/src/SetBG.cc
+++ b/src/SetBG.cc
@@ -52,6 +52,9 @@ SetBG* SetBG::get_bg_setter()
         case SetBG::NEMO:
             setter = new SetBGNemo();
             break;
+        case SetBG::CAJA:
+            setter = new SetBGCaja();
+            break;
 #ifdef USE_XINERAMA
         case SetBG::XINERAMA:
             XineramaScreenInfo *xinerama_info;
@@ -311,6 +314,7 @@ SetBG::RootWindowData SetBG::check_window_type(Display *display, Window window)
 
                 if (strclass == std::string("Xfdesktop")) retval.type = SetBG::XFCE;     else
                 if (strclass == std::string("Nautilus"))  retval.type = SetBG::NAUTILUS; else
+                if (strclass == std::string("Caja"))      retval.type = SetBG::CAJA;     else
                 if (strclass == std::string("Nemo"))      retval.type = SetBG::NEMO;     else
                 if (strclass == std::string("Pcmanfm"))   retval.type = SetBG::PCMANFM;  else
                 if (strclass == std::string("Conky") || strclass == std::string("conky"))
@@ -1367,6 +1371,51 @@ bool SetBGNemo::save_to_config()
     return false;
 }
 
+/*
+ * **************************************************************************
+ * SetBGCaja
+ * **************************************************************************
+ */
+
+/**
+ * Returns the schema key to be used for setting background settings.
+ *
+ * Can be overridden.
+ */
+Glib::ustring SetBGCaja::get_gsettings_key()
+{
+    return Glib::ustring("org.mate.background");
+}
+
+/**
+ * Sets the bg if caja is appearing to draw the desktop image.
+ */
+bool SetBGCaja::set_bg(Glib::ustring &disp, Glib::ustring file, SetMode mode, Gdk::Color bgcolor)
+{
+    Glib::ustring strmode;
+    switch(mode) {
+        case SetBG::SET_SCALE:      strmode = "stretched";  break;
+        case SetBG::SET_TILE:       strmode = "wallpaper"; break;
+        case SetBG::SET_CENTER:     strmode = "centered"; break;
+        case SetBG::SET_ZOOM:       strmode = "scaled"; break;
+        case SetBG::SET_ZOOM_FILL:  strmode = "spanned"; break;
+        default:                    strmode = "zoom"; break;
+        };
+
+    Glib::RefPtr<Gio::Settings> settings = Gio::Settings::create(get_gsettings_key());
+
+    Glib::RefPtr<Gio::File> iofile = Gio::File::create_for_commandline_arg(file);
+
+    settings->set_string("picture-filename", iofile->get_path());
+    settings->set_string("picture-options", strmode);
+    settings->set_string("primary-color", bgcolor.to_string());
+    settings->set_string("secondary-color", bgcolor.to_string());
+
+    set_show_desktop();
+
+    return true;
+}
+
 /*
  * **************************************************************************
  * SetBGPcmanfm
diff --git a/src/SetBG.h b/src/SetBG.h
index 1f57d63..28e1ab2 100644
--- a/src/SetBG.h
+++ b/src/SetBG.h
@@ -58,6 +58,7 @@ class SetBG {
             XINERAMA,
             NEMO,
             PCMANFM,
+            CAJA,
             IGNORE      // Conky, etc
         };
 
@@ -184,6 +185,16 @@ class SetBGNemo : public SetBGGnome {
         virtual void set_show_desktop();
 };
 
+class SetBGCaja : public SetBGGnome {
+    public:
+        virtual bool set_bg(Glib::ustring &disp,
+                            Glib::ustring file,
+                            SetMode mode,
+                            Gdk::Color bgcolor);
+    protected:
+        virtual Glib::ustring get_gsettings_key();
+};
+
 class SetBGPcmanfm : public SetBGGnome {
     public:
         virtual Glib::ustring get_fullscreen_key();