From 9106b3536217622646cc5e13c0dd489fa9a52cad Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 12 Sep 2026 14:45:43 +0000
Subject: [PATCH 1/4] Initial plan


From cc1ca13cc4d139dc51c7629ebece2d2060e2d5b6 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 12 Sep 2026 14:48:09 +0000
Subject: [PATCH 2/4] fix: persist horizontal/vertical orientation across page
 refreshes

---
 packages/yasgui/src/PersistentConfig.ts | 9 +++++++++
 packages/yasgui/src/Tab.ts              | 3 +++
 packages/yasgui/src/index.ts            | 6 ++++++
 3 files changed, 18 insertions(+)

diff --git a/packages/yasgui/src/PersistentConfig.ts b/packages/yasgui/src/PersistentConfig.ts
index 20f3917f..bd62a381 100644
--- a/packages/yasgui/src/PersistentConfig.ts
+++ b/packages/yasgui/src/PersistentConfig.ts
@@ -315,6 +315,15 @@ export default class PersistentConfig {
   /**
    * Get list of disabled developer-configured endpoint buttons
    */
+  public getOrientation(): "vertical" | "horizontal" | undefined {
+    return this.persistedJson.orientation;
+  }
+
+  public setOrientation(orientation: "vertical" | "horizontal") {
+    this.persistedJson.orientation = orientation;
+    this.toStorage();
+  }
+
   public getDisabledDevButtons(): string[] {
     return this.persistedJson.disabledDevButtons || [];
   }
diff --git a/packages/yasgui/src/Tab.ts b/packages/yasgui/src/Tab.ts
index 363b3d22..7de2d106 100644
--- a/packages/yasgui/src/Tab.ts
+++ b/packages/yasgui/src/Tab.ts
@@ -621,6 +621,9 @@ export class Tab extends EventEmitter {
     // Update global config
     this.yasgui.config.orientation = newOrientation;
 
+    // Persist orientation
+    this.yasgui.persistentConfig.setOrientation(newOrientation);
+
     // Apply to all tabs
     for (const tabId in this.yasgui._tabs) {
       const tab = this.yasgui._tabs[tabId];
diff --git a/packages/yasgui/src/index.ts b/packages/yasgui/src/index.ts
index 99f820a1..08b0ef32 100644
--- a/packages/yasgui/src/index.ts
+++ b/packages/yasgui/src/index.ts
@@ -186,6 +186,12 @@ export class Yasgui extends EventEmitter {
       this.config.showSnippetsBar = persistedShowSnippetsBar;
     }
 
+    // Load persisted orientation if available
+    const persistedOrientation = this.persistentConfig.getOrientation();
+    if (persistedOrientation !== undefined) {
+      this.config.orientation = persistedOrientation;
+    }
+
     this.tabElements = new TabElements(this);
     this.tabPanelsEl = document.createElement("div");
 

From a24efee40bb425b1d0716da3c037e510fbb0d68b Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Sat, 12 Sep 2026 14:49:19 +0000
Subject: [PATCH 3/4] fix: add JSDoc comments to getOrientation/setOrientation

---
 packages/yasgui/src/PersistentConfig.ts | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/packages/yasgui/src/PersistentConfig.ts b/packages/yasgui/src/PersistentConfig.ts
index bd62a381..25fae3a2 100644
--- a/packages/yasgui/src/PersistentConfig.ts
+++ b/packages/yasgui/src/PersistentConfig.ts
@@ -313,17 +313,23 @@ export default class PersistentConfig {
   }
 
   /**
-   * Get list of disabled developer-configured endpoint buttons
+   * Get the persisted layout orientation
    */
   public getOrientation(): "vertical" | "horizontal" | undefined {
     return this.persistedJson.orientation;
   }
 
+  /**
+   * Set and persist the layout orientation
+   */
   public setOrientation(orientation: "vertical" | "horizontal") {
     this.persistedJson.orientation = orientation;
     this.toStorage();
   }
 
+  /**
+   * Get list of disabled developer-configured endpoint buttons
+   */
   public getDisabledDevButtons(): string[] {
     return this.persistedJson.disabledDevButtons || [];
   }

From 5a1eecc6f015efe655bf3620cceb9fda5a253141 Mon Sep 17 00:00:00 2001
From: Mathias Vanden Auweele <mathias@matdata.eu>
Date: Sat, 12 Sep 2026 17:30:13 +0200
Subject: [PATCH 4/4] Improve getOrientation method implementation

Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
---
 packages/yasgui/src/PersistentConfig.ts | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/packages/yasgui/src/PersistentConfig.ts b/packages/yasgui/src/PersistentConfig.ts
index 25fae3a2..d62fb797 100644
--- a/packages/yasgui/src/PersistentConfig.ts
+++ b/packages/yasgui/src/PersistentConfig.ts
@@ -315,9 +315,10 @@ export default class PersistentConfig {
   /**
    * Get the persisted layout orientation
    */
-  public getOrientation(): "vertical" | "horizontal" | undefined {
-    return this.persistedJson.orientation;
-  }
+public getOrientation(): "vertical" | "horizontal" | undefined {
+  const orientation = this.persistedJson.orientation;
+  return orientation === "vertical" || orientation === "horizontal" ? orientation : undefined;
+}
 
   /**
    * Set and persist the layout orientation