From 67fb7bff8739d6e837a27ddaec372a383f7a4926 Mon Sep 17 00:00:00 2001
From: Eugenio Depalo <eugeniodepalo@gmail.com>
Date: Tue, 28 May 2024 13:54:08 +0200
Subject: src/{main-window,settings}.vala: Add a setting to configure the user
 list alignment.

Ported from slick-greeter by Mike Gabriel.
---
 .../org.ArcticaProject.arctica-greeter.gschema.xml |  9 +++++
 src/main-window.vala                               | 44 ++++++++++++++++++----
 src/settings.vala                                  |  1 +
 3 files changed, 47 insertions(+), 7 deletions(-)

diff --git a/data/org.ArcticaProject.arctica-greeter.gschema.xml b/data/org.ArcticaProject.arctica-greeter.gschema.xml
index 0af9d09..67f8e83 100644
--- a/data/org.ArcticaProject.arctica-greeter.gschema.xml
+++ b/data/org.ArcticaProject.arctica-greeter.gschema.xml
@@ -255,5 +255,14 @@
       <default>true</default>
       <summary>Whether to enable the GeoClue-2.0 agent (enhances ayatana-indicator-display).</summary>
     </key>
+    <key name="content-align" type="s">
+      <choices>
+        <choice value='left'/>
+        <choice value='center'/>
+        <choice value='right'/>
+      </choices>
+      <default>'left'</default>
+      <summary>Alignment of the main content</summary>
+    </key>
   </schema>
 </schemalist>
diff --git a/src/main-window.vala b/src/main-window.vala
index 5332186..ad2700a 100644
--- a/src/main-window.vala
+++ b/src/main-window.vala
@@ -34,6 +34,7 @@ public class MainWindow : Gtk.Window
     private Background background;
     private Gtk.Box login_box;
     private Gtk.Box hbox;
+    private Gtk.Box content_box;
     private Gtk.Button back_button;
     private ShutdownDialog? shutdown_dialog = null;
     private bool do_resize;
@@ -90,12 +91,40 @@ public class MainWindow : Gtk.Window
         ArcticaGreeter.add_style_class (menubar);
         ArcticaGreeter.add_style_class (menubox);
 
+        content_box = new Gtk.Box (Gtk.Orientation.HORIZONTAL, 0);
+        content_box.expand = true;
+        content_box.show ();
+        login_box.add (content_box);
+
+        var content_align = AGSettings.get_string(AGSettings.KEY_CONTENT_ALIGN);
+        var x_align = 0.5f;
+
+        if (content_align == "left")
+        {
+            x_align = 0.0f;
+        }
+        else if (content_align == "right")
+        {
+            x_align = 1.0f;
+        }
+
+        var align = new Gtk.Alignment (x_align, 0.0f, 0.0f, 1.0f);
+
+        if (content_align == "center")
+        {
+            // offset for back button
+            align.margin_right = grid_size;
+        }
+
+        align.show ();
+        content_box.add (align);
+
         hbox = new Gtk.Box (Gtk.Orientation.HORIZONTAL, 0);
         hbox.expand = true;
         hbox.show ();
-        login_box.add (hbox);
+        align.add (hbox);
 
-        var align = new Gtk.Alignment (0.5f, 0.5f, 0.0f, 0.0f);
+        align = new Gtk.Alignment (0.5f, 0.5f, 0.0f, 0.0f);
         // Hack to avoid gtk 3.20's new allocate logic, which messes us up.
         align.resize_mode = Gtk.ResizeMode.QUEUE;
         align.set_size_request (grid_size, -1);
@@ -185,12 +214,13 @@ public class MainWindow : Gtk.Window
     {
         base.size_allocate (allocation);
 
-        if (hbox != null)
+        if (content_box != null)
         {
-            hbox.margin_start = get_grid_offset (get_allocated_width ()) + grid_size;
-            hbox.margin_end = get_grid_offset (get_allocated_width ());
-            hbox.margin_top = get_grid_offset (get_allocated_height ());
-            hbox.margin_bottom = get_grid_offset (get_allocated_height ());
+            var content_align = AGSettings.get_string(AGSettings.KEY_CONTENT_ALIGN);
+            content_box.margin_left = get_grid_offset (get_allocated_width ()) + (content_align == "left" ? grid_size : 0);
+            content_box.margin_right = get_grid_offset (get_allocated_width ()) + (content_align == "right" ? grid_size : 0);
+            content_box.margin_top = get_grid_offset (get_allocated_height ());
+            content_box.margin_bottom = get_grid_offset (get_allocated_height ());
         }
     }
 
diff --git a/src/settings.vala b/src/settings.vala
index 8447c0f..7d1ce8f 100644
--- a/src/settings.vala
+++ b/src/settings.vala
@@ -84,6 +84,7 @@ public class AGSettings : Object
     public const string KEY_PREFERRED_SESSIONS = "preferred-sessions";
     public const string KEY_GEOCLUE_AGENT = "geoclue-agent";
     public const string KEY_MAGNIFIER = "magnifier";
+    public const string KEY_CONTENT_ALIGN = "content-align";
 
     public static bool get_boolean (string key)
     {
-- 
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