From 7b6dbfdd727ce5a5b593394893489bafc02ccea6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Florian=20M=C3=BCllner?= <fmuellner@gnome.org>
Date: Thu, 25 Sep 2025 14:18:03 +0200
Subject: [PATCH] dash-to-panel: Don't create main panel without a monitor

---
 extensions/dash-to-panel/extension.js    |  5 ++--
 extensions/dash-to-panel/panelManager.js | 35 +++++++++++++++++-------
 2 files changed, 28 insertions(+), 12 deletions(-)

diff --git a/extensions/dash-to-panel/extension.js b/extensions/dash-to-panel/extension.js
index 8ab108f2..8ffff041 100644
--- a/extensions/dash-to-panel/extension.js
+++ b/extensions/dash-to-panel/extension.js
@@ -111,7 +111,8 @@ function _enable() {
     // Pretend I'm the dash: meant to make appgrd swarm animation come from the
     // right position of the appShowButton.
     oldDash = Main.overview._dash;
-    Main.overview._dash = panelManager.primaryPanel.taskbar;
+    if (panelManager.primaryPanel)
+        Main.overview._dash = panelManager.primaryPanel.taskbar;
 }
 
 function disable(reset) {
@@ -141,4 +142,4 @@ function disable(reset) {
             (extensionSystem._callExtensionEnable || extensionSystem.enableExtension).call(extensionSystem, UBUNTU_DOCK_UUID);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/extensions/dash-to-panel/panelManager.js b/extensions/dash-to-panel/panelManager.js
index 20ee12d8..87a85504 100755
--- a/extensions/dash-to-panel/panelManager.js
+++ b/extensions/dash-to-panel/panelManager.js
@@ -73,16 +73,20 @@ var dtpPanelManager = Utils.defineClass({
     enable: function(reset) {
         let dtpPrimaryIndex = Me.settings.get_int('primary-monitor');
 
+        this.allPanels = [];
         this.dtpPrimaryMonitor = Main.layoutManager.monitors[dtpPrimaryIndex] || Main.layoutManager.primaryMonitor;
         this.proximityManager = new Proximity.ProximityManager();
 
         Utils.wrapActor(Main.panel);
         Utils.wrapActor(Main.overview.dash || 0);
 
-        this.primaryPanel = this._createPanel(this.dtpPrimaryMonitor, Me.settings.get_boolean('stockgs-keep-top-panel'));
-        this.allPanels = [ this.primaryPanel ];
-        
-        this.overview.enable(this.primaryPanel);
+        if (this.dtpPrimaryMonitor) {
+            this.primaryPanel = this._createPanel(this.dtpPrimaryMonitor, Me.settings.get_boolean('stockgs-keep-top-panel'));
+            this.allPanels.push(this.primaryPanel);
+            this.overview.enable(this.primaryPanel);
+
+            this.setFocusedMonitor(this.dtpPrimaryMonitor);
+        }
 
         if (Me.settings.get_boolean('multi-monitors')) {
             Main.layoutManager.monitors.filter(m => m != this.dtpPrimaryMonitor).forEach(m => {
@@ -121,18 +125,20 @@ var dtpPanelManager = Utils.defineClass({
         }
 
         this._updatePanelElementPositions();
-        this.setFocusedMonitor(this.dtpPrimaryMonitor);
         
-        if (this.primaryPanel.checkIfVertical()) {
+        if (this.primaryPanel && this.primaryPanel.checkIfVertical()) {
             Main.wm._getPositionForDirection = newGetPositionForDirection;
         }
         
         if (reset) return;
 
         this._oldViewSelectorAnimateIn = Main.overview.viewSelector._animateIn;
-        Main.overview.viewSelector._animateIn = Lang.bind(this.primaryPanel, newViewSelectorAnimateIn);
         this._oldViewSelectorAnimateOut = Main.overview.viewSelector._animateOut;
-        Main.overview.viewSelector._animateOut = Lang.bind(this.primaryPanel, newViewSelectorAnimateOut);
+
+        if (this.primaryPanel) {
+            Main.overview.viewSelector._animateIn = Lang.bind(this.primaryPanel, newViewSelectorAnimateIn);
+            Main.overview.viewSelector._animateOut = Lang.bind(this.primaryPanel, newViewSelectorAnimateOut);
+        }
 
         if (Config.PACKAGE_VERSION > '3.35.1') {
             this._oldDoSpringAnimation = AppDisplay.BaseAppView.prototype._doSpringAnimation;
@@ -265,14 +271,23 @@ var dtpPanelManager = Utils.defineClass({
         );
 
         Panel.panelBoxes.forEach(c => this._signalsHandler.add(
-            [Main.panel[c], 'actor-added', (parent, child) => this._adjustPanelMenuButton(this._getPanelMenuButton(child), this.primaryPanel.monitor, this.primaryPanel.getPosition())]
+            [
+                Main.panel[c],
+                'actor-added',
+                (parent, child) => {
+                    if (this.primaryPanel)
+                        this._adjustPanelMenuButton(this._getPanelMenuButton(child),
+                            this.primaryPanel.monitor, this.primaryPanel.getPosition());
+                }
+            ]
         ));
 
         this._setKeyBindings(true);
     },
 
     disable: function(reset) {
-        this.overview.disable();
+        if (this.primaryPanel)
+            this.overview.disable();
         this.proximityManager.destroy();
 
         this.allPanels.forEach(p => {
-- 
2.51.0