From 3750754c09963fbe8d69d279b64d3dde3d0a1bbf Mon Sep 17 00:00:00 2001
From: Simon Lydell <simon.lydell@gmail.com>
Date: Sun, 18 Jan 2015 21:59:02 +0100
Subject: [PATCH] Fix #389: Make sure autofocus prevention does not cause
 infinite loops

---
 extension/lib/events.coffee | 10 ++++++++++
 extension/lib/vim.coffee    |  1 +
 2 files changed, 11 insertions(+)

diff --git a/extension/lib/events.coffee b/extension/lib/events.coffee
index c8c467d..93bcb36 100644
--- a/extension/lib/events.coffee
+++ b/extension/lib/events.coffee
@@ -179,6 +179,7 @@ windowsListeners =
         target instanceof HTMLInputElement and
         (vim.lastInteraction == null or
          Date.now() - vim.lastInteraction > getPref('autofocus_limit'))
+      vim.lastAutofocusPrevention = Date.now()
       target.blur()
 
   blur: (event) ->
@@ -190,6 +191,15 @@ windowsListeners =
       vim.enterMode('normal')
       return
 
+    # Some sites (such as icloud.com) re-focuses inputs if they are blurred,
+    # causing an infinite loop autofocus prevention and re-focusing. Therefore
+    # we suppress blur events that happen just after an autofocus prevention.
+    if vim.lastAutofocusPrevention != null and
+       Date.now() - vim.lastAutofocusPrevention < 1
+      vim.lastAutofocusPrevention = null
+      suppressEvent(event)
+      return
+
   click: (event) ->
     target = event.originalTarget
     return unless vim = getVimFromEvent(event)
diff --git a/extension/lib/vim.coffee b/extension/lib/vim.coffee
index 9640aa4..abfe261 100644
--- a/extension/lib/vim.coffee
+++ b/extension/lib/vim.coffee
@@ -26,6 +26,7 @@ module.exports = class Vim
     @rootWindow = utils.getRootWindow(@window) # For convenience.
     @storage = {}
     @lastInteraction = null
+    @lastAutofocusPrevention = null
     @enterMode('normal')
 
   enterMode: (mode, args...) ->
-- 
2.39.3