From df72a1be0213d211645f39f1ec6aeeba4d8e7896 Mon Sep 17 00:00:00 2001
From: mrmr1993
Date: Thu, 20 Apr 2017 17:34:46 +0100
Subject: Blur the focused iframe when restoring window focus

This works around FF issue 554039, which prevents window.top.focus()
from working.
---
 content_scripts/vimium_frontend.coffee | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'content_scripts/vimium_frontend.coffee')

diff --git a/content_scripts/vimium_frontend.coffee b/content_scripts/vimium_frontend.coffee
index cdb23352..e84346e1 100644
--- a/content_scripts/vimium_frontend.coffee
+++ b/content_scripts/vimium_frontend.coffee
@@ -315,6 +315,9 @@ focusThisFrame = (request) ->
       chrome.runtime.sendMessage handler: "nextFrame"
       return
   window.focus()
+  # On Firefox, window.focus doesn't always draw focus back from a child frame (bug 554039).
+  # We blur the active element if it is an iframe, which gives the window back focus as intended.
+  document.activeElement.blur() if document.activeElement.tagName.toLowerCase() == "iframe"
   flashFrame() if request.highlight
 
 extend window,
-- 
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