tor-browser

commit 80aeb4d9892253de1e227ce1810398b73885e046
parent cd7748b0ac4dff025ad0e4a3936e8c2a6d0e8b76
Author: Kelly Cochrane <kcochrane@mozilla.com>
Date:   Thu, 11 Dec 2025 19:38:53 +0000

Bug 2005060 - Ensure selected panel index stays up to date in case split view splitter offsets it r=jsudiaman

Differential Revision: https://phabricator.services.mozilla.com/D276053

Diffstat:
M
toolkit/content/widgets/tabbox.js
 | 
5
+++++

1 file changed, 5 insertions(+), 0 deletions(-)
diff --git a/toolkit/content/widgets/tabbox.js b/toolkit/content/widgets/tabbox.js
@@ -415,11 +415,16 @@
     set #isSplitViewActive(isActive) {
       this.toggleAttribute("splitview", isActive);
       this.splitViewSplitter.hidden = !isActive;
+      const selectedPanel = this.selectedPanel;
       if (isActive) {
         // Place splitter after first panel, so that it can be resized.
         const firstPanel = document.getElementById(this.splitViewPanels[0]);
         firstPanel?.after(this.#splitViewSplitter);
       }
+
+      // Ensure that selected index stays up to date, in case the splitter
+      // offsets it.
+      this.selectedPanel = selectedPanel;
     }
   }