From 2943298a6e9532251247f26064422a343c4c7adf Mon Sep 17 00:00:00 2001
From: vesp <vesp@post.cz>
Date: Thu, 18 Dec 2025 12:38:07 +0100
Subject: [PATCH] Make Request and Response sections equal width

Replaces AdwOverlaySplitView with GtkPaned to allow both sections to have equal width by default. The divider automatically centers at 50/50 split when the window is first shown, while still allowing users to adjust it as needed.
---
 src/main-window.ui | 20 +++++++++++---------
 src/window.py      | 19 +++++++++++++++++++
 2 files changed, 30 insertions(+), 9 deletions(-)

diff --git a/src/main-window.ui b/src/main-window.ui
index b0e1e15..58a170e 100644
--- a/src/main-window.ui
+++ b/src/main-window.ui
@@ -74,15 +74,17 @@
 
             <!-- Split View: Request (left) | Response (right) -->
             <child>
-              <object class="AdwOverlaySplitView" id="split_view">
+              <object class="GtkPaned" id="split_pane">
                 <property name="vexpand">True</property>
-                <property name="sidebar-position">start</property>
-                <property name="show-sidebar">True</property>
-                <property name="min-sidebar-width">300</property>
-                <property name="max-sidebar-width">600</property>
+                <property name="orientation">horizontal</property>
+                <property name="position">600</property>
+                <property name="shrink-start-child">False</property>
+                <property name="shrink-end-child">False</property>
+                <property name="resize-start-child">True</property>
+                <property name="resize-end-child">True</property>
 
-                <!-- LEFT SIDEBAR: Request Configuration -->
-                <property name="sidebar">
+                <!-- LEFT: Request Configuration -->
+                <property name="start-child">
                   <object class="GtkBox">
                     <property name="orientation">vertical</property>
 
@@ -96,8 +98,8 @@
                   </object>
                 </property>
 
-                <!-- RIGHT CONTENT: Response Display -->
-                <property name="content">
+                <!-- RIGHT: Response Display -->
+                <property name="end-child">
                   <object class="GtkBox">
                     <property name="orientation">vertical</property>
 
diff --git a/src/window.py b/src/window.py
index ccd59d0..20df2bb 100644
--- a/src/window.py
+++ b/src/window.py
@@ -36,6 +36,9 @@ class RosterWindow(Adw.ApplicationWindow):
     url_entry = Gtk.Template.Child()
     send_button = Gtk.Template.Child()
 
+    # Split pane
+    split_pane = Gtk.Template.Child()
+
     # Containers for tabs
     request_tabs_container = Gtk.Template.Child()
     response_tabs_container = Gtk.Template.Child()
@@ -68,6 +71,22 @@ class RosterWindow(Adw.ApplicationWindow):
         # Add initial header row
         self._add_header_row()
 
+        # Set split pane position to center after window is shown
+        self.connect("map", self._on_window_mapped)
+
+    def _on_window_mapped(self, widget):
+        """Set split pane position to center when window is mapped."""
+        # Use idle_add to ensure the widget is fully allocated
+        GLib.idle_add(self._center_split_pane)
+
+    def _center_split_pane(self):
+        """Center the split pane divider."""
+        # Get the allocated width of the paned widget
+        allocation = self.split_pane.get_allocation()
+        if allocation.width > 0:
+            self.split_pane.set_position(allocation.width // 2)
+        return False  # Don't repeat
+
     def _create_actions(self):
         """Create window-level actions."""
         action = Gio.SimpleAction.new("toggle-history", None)